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          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="us-gaap_FurnitureAndFixturesMember"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_FortyGOfficeAndAdditionalLaboratoryMember" xlink:label="cue_FortyGOfficeAndAdditionalLaboratoryMember"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber" xlink:label="dei_EntityTaxIdentificationNumber"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_AccretionOfFinalPayment" xlink:label="cue_AccretionOfFinalPayment"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="us-gaap_LongtermDebtTypeAxis"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_PlacementAgentFeesAndOfferingExpenses" xlink:label="cue_PlacementAgentFeesAndOfferingExpenses"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber" xlink:label="dei_LocalPhoneNumber"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="us-gaap_RelatedPartyTransactionDomain"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_ClassOfPreFundedWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="cue_ClassOfPreFundedWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_MonthlyInstallments" xlink:label="cue_MonthlyInstallments"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_OnSeptemberTwentySixTwoThousandTwentyFourMember" xlink:label="cue_OnSeptemberTwentySixTwoThousandTwentyFourMember"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TrademarksMember" xlink:label="us-gaap_TrademarksMember"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:label="us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="us-gaap_DisaggregationOfRevenueLineItems"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_BICollaborationAndLicenseAgreementMember" xlink:label="cue_BICollaborationAndLicenseAgreementMember"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedProfessionalFeesCurrent" xlink:label="us-gaap_AccruedProfessionalFeesCurrent"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
          <link:loc xlink:type="locator" xlink:href="cue-20260331.xsd#cue_GainLossOnRightOfUseAsset" xlink:label="cue_GainLossOnRightOfUseAsset"/>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedEmployeeBenefitsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Employee Benefits, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedEmployeeBenefitsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee and board compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrademarkPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trademark</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrademarkPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trademark Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrademarkPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Trademark.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Preferred Stock, Shares Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position Location, Balance [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Accounts Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosures of non-cash investing and financing activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Excluding Current Maturities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term debt, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Less: Unamortized debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term debt, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plan Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating expenses:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OperatingLeasesRentExpensesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating Leases Rent Expenses Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OperatingLeasesRentExpensesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Leases Rent Expenses Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OperatingLeasesRentExpensesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rent expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_MA_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cambridge, Massachusetts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_MA_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MASSACHUSETTS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PercentageIncreaseInLeaseAgreementAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Increase in Lease Agreement Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PercentageIncreaseInLeaseAgreementAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage Increase in Lease Agreement Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PercentageIncreaseInLeaseAgreementAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage Increase in Lease Agreement Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeEstimatedAverageInvestmentYield_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend Yeild</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeEstimatedAverageInvestmentYield_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Duration Contracts, Assumptions by Product and Guarantee, Estimated Average Investment Yield</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Tranche2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tranche 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Tranche2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tranche 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Tranche2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tranche 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PrepaymentPremiumRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Prepayment premium rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PrepaymentPremiumRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepayment premium rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PrepaymentPremiumRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepayment premium rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfAdditionalMilestonePaymentsMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate amount of additional milestone payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfAdditionalMilestonePaymentsMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aggregate Amount Of Additional Milestone Payments Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfAdditionalMilestonePaymentsMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aggregate amount of a one-time additional milestone payments based on cumulative sales of all licensed products, maximum.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForOtherOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Other Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForOtherOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment for License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and Cash Equivalents, at Carrying Value, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash and Cash Equivalents, at Carrying Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash and Cash Equivalents, at Carrying Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeVolatilityRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Duration Contracts, Assumptions by Product and Guarantee, Volatility Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Arrangement, Contract to Perform for Others, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License monthly rental rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License monthly rental rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License monthly rental rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Shares, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre-Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UpfrontPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Upfront payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UpfrontPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Upfront Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UpfrontPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Upfront Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TermLoanAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term Loan Agreement Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TermLoanAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loan Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TermLoanAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term Loan Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Deposit Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in deposit liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseCommissionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noninterest Expense Commission Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseCommissionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions and offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from sale of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale Of Common Stock Net Commission Paid1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">ProceedsFromSaleOfCommonStockNetCommissionPaid.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Exercise Price, Expired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsCurrentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Gross, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsCurrentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less: unamortized debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsCurrentGross_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: unamortized debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and stockholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-Term Debt, Current Maturities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Current Maturities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current portion of long-term debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Weighed Average Exercise Price, Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighed Average Exercise Price, Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestructuringCostAndReserveAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restructuring Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeveranceCosts1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Severance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeveranceCosts1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Severance Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OperatingLeaseAgreementForAdditionalLaboratorySpaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Lease Agreement For Additional Laboratory Space</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OperatingLeaseAgreementForAdditionalLaboratorySpaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Agreement For Additional Laboratory Space [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OperatingLeaseAgreementForAdditionalLaboratorySpaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease agreement for additional laboratory space.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdjustmentRelatedToRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment Related To Right Of Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdjustmentRelatedToRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjustment related to right of use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdjustmentRelatedToRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustment related to right of use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Offering price of shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Four Common Stock Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Four Common Stock Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Common Stock Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_BostonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Boston, Massachusetts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_BostonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Boston [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_BostonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Boston [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FullTimeEmployeSalaryPayableInFirstResearchTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Full time employe salary payable in first research term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FullTimeEmployeSalaryPayableInFirstResearchTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Full Time Employe Salary Payable in First Research Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FullTimeEmployeSalaryPayableInFirstResearchTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Full time employe salary payable in first research term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaboration and License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration and License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaboration and License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFinancingTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities Financing Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFinancingTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Financing Transaction [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expense and other assets non current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Additional Paid in Capital, Common Stock, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Additional Paid in Capital, Common Stock, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid in capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital, Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Issuance Costs, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Significant Accounting Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property Plant And Equipment [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCostsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common stock, warrants and pre-funded warrants, net of issuance costs, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCostsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of common stock, warrants and pre-funded warrants, net of issuance costs amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCostsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of Common Stock Warrants and Pre Funded Warrants Net Of Issuance Costs Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments And Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments And Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commitments and contingencies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vesting [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Number of Shares, Granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of shares, granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Disaggregation Of Revenue [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disaggregation of Revenue [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementWithImmunoScapePteLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaboration and License Agreement with ImmunoScape Pte. Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementWithImmunoScapePteLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaboration and License Agreement with ImmunoScape Pte Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementWithImmunoScapePteLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration and License Agreement with ImmunoScape Pte Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LaboratoryEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Laboratory Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LaboratoryEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Laboratory Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LaboratoryEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Laboratory equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per common share, basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfDepreciationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of depreciation expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfDepreciationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Depreciation Expense Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfDepreciationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Depreciation Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Number of Shares, Outstanding Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Number of Shares, Outstanding Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), Nonoperating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityThresholdPeriodPastDue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable securities, Maturity period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityThresholdPeriodPastDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Threshold Period Past Due</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Account receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net loss to cash used in operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of common stock from ATM offering, net of sales agent commission and fees, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of common stock from ATM offering, net of sales agent commission and fees, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common stock from ATM offering, net of sales agent commissions and fees, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Onetimeupfrontpaymentpayableasconsiderationrdactivities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">OneTimeUpFrontPaymentPayableAsConsiderationRDActivities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Onetimeupfrontpaymentpayableasconsiderationrdactivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">One Time Up Front Payment Payable As Consideration RD Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Onetimeupfrontpaymentpayableasconsiderationrdactivities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">One time up front payment payable as consideration RD activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryFifteenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">February Fifteen Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryFifteenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">February Fifteen Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryFifteenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">February 15, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Agreement2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sales Agreement November 2019</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Agreement2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Agreement2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Agreement2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Agreement 2 member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TransactionExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TransactionExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TransactionExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transaction expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TotalReceiveUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Receive Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TotalReceiveUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Total Receive Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TotalReceiveUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total receive upfront payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Long-DurationContractsAssumptionsByProductAndGuaranteeRisk-FreeRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Duration Contracts, Assumptions by Product and Guarantee, Risk-Free Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Long-DurationContractsAssumptionsByProductAndGuaranteeRisk-FreeRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Long-Duration Contracts, Assumptions by Product and Guarantee, Risk-Free Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Long-DurationContractsAssumptionsByProductAndGuaranteeRisk-FreeRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk-Free Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stockholders' equity:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReverseStockSplit1PolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reverse Stock Split1 [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReverseStockSplit1PolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Reverse Stock Split1 [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReverseStockSplit1PolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reverse Stock Split</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Retained Earnings (Accumulated Deficit), Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Retained Earnings (Accumulated Deficit), Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Retained Earnings (Accumulated Deficit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated deficit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValueAddedTaxReceivableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Value Added Tax Receivable, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValueAddedTaxReceivableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign withholding tax receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FirstAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">First Amendment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FirstAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FirstAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First Amendment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201602Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASU 2016-02</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201602Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2016-02 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccretionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accretion Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccretionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalCommonStockWarrantPurchasesCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Common Stock Warrant Purchases Common Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalCommonStockWarrantPurchasesCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional Common Stock Warrant Purchases Common Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalCommonStockWarrantPurchasesCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional common stock warrant purchases common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Number of Shares, Forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Einstein license agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Einstein License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Einstein License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from Issuance Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfCostGoodOrServiceExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Type of Cost, Good or Service [Extensible List]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfCostGoodOrServiceExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost, Product and Service [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Covid19PandemicPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">COVID 19 Pandemic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Covid19PandemicPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Covid19 Pandemic Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Covid19PandemicPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for Covid 19 pandemic.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from sale of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds From Sale Of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale Of Common Stock Net Commission Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of common stock net commission paid.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease Contractual Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Contractual Term [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leases [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNetOfForfeituresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ImmunoScapePteLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ImmunoScape Pte Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ImmunoScapePteLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ImmunoScape Pte Ltd</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ImmunoScapePteLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">ImmunoScape Pte Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee Lease Description [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LumpSumPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">lump sum Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LumpSumPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">lump sum Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-cash interest expense to the lease liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finance Lease, Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings (Loss) Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities and Stockholders' Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OppenheimerCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Oppenheimer &amp; Co. Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OppenheimerCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Oppenheimer &amp; Co. Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OppenheimerCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Oppenheimer &amp; Co. Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Exercise Price, Granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: accumulated depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Available For Sale Securities [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsExercisableIntrinsicFairValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share based compensation arrangement by share based payment award fair value of options exercisable intrinsic fair value per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsExercisableIntrinsicFairValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Based Compensation Arrangement By Share Based Payment Award Fair Value Of Options Exercisable Intrinsic Fair Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsExercisableIntrinsicFairValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intrinsic value of exercisable fair value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Arrangement, Contract to Perform for Others, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Estimated Fair Value of Each Stock Option Award</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateSecondYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License monthly rental rate second year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateSecondYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License monthly rental rate second year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateSecondYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License monthly rental rate second year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CurrentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CurrentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CurrentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Current liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position Location, Balance [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedDecemberTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants Issued December 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedDecemberTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Issued December Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedDecemberTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants Issued December Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Underwriting Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions and offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease right-of-use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ApproximatelyReceivedOfUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Approximately Received of Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ApproximatelyReceivedOfUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Approximately Received of Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ApproximatelyReceivedOfUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Approximately Received of Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangement and Arrangement Other than Collaborative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Equity, Fair Value Disclosure, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of equity interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangement and Arrangement Other than Collaborative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Debt and Equity Securities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">WSJ Prime Rate plus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prime Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EstimatedUsefulLivesOfAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Estimated Useful Lives of Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EstimatedUsefulLivesOfAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Estimated Useful Lives Of Assets Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EstimatedUsefulLivesOfAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Estimated useful lives of assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Approach and Technique [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net decrease in cash, cash equivalents, and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive securities excluded from computation of earnings per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LGChemLifeSciencesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">LG Chem Life Sciences.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LGChemLifeSciencesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LG Chem Life Sciences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LGChemLifeSciencesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">L G Chem Life Sciences [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock Warrants to purchase</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Tranche One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tranche A</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SiliconValleyBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Silicon Valley Bank [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SiliconValleyBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Silicon Valley Bank [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SiliconValleyBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Silicon Valley Bank</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stock based payment options outstanding weighted average remaining term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Remaining Contractual Life (in Years)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected volatility, maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable securities of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-Sale, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnTerminationOfLease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Termination of Lease</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnTerminationOfLease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">(Gain) on lease termination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnTerminationOfLease_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">(Gain) on lease termination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instruments [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Number of Shares, Exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of stock options, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePaymentsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Milestone payments received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePaymentsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Milestone Payments Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePaymentsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Milestone payments received.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfSignificantAccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary Of Significant Accounting Policies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfSignificantAccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Significant Accounting Policies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfSignificantAccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of significant accounting policies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SublicensingRevenuesReceivedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sublicensing Revenues Received Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SublicensingRevenuesReceivedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sublicensing Revenues Received Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SublicensingRevenuesReceivedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sublicensing revenues received percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PlacementFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Placement Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PlacementFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Placement Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PlacementFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Placement fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalents [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInOtherPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Other Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInOtherPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase Decrease In Other Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInOtherPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LabSpaceLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lab Space Lease Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LabSpaceLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lab Space Lease [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LabSpaceLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lab Space Lease Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseThirdAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional laboratory lease third amendment member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseThirdAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Laboratory Lease Third Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseThirdAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Laboratory Lease Third Amendment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Einstein</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Einstein [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Einstein.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common stock, warrants and pre-funded warrants, net of issuance costs, Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of common stock, warrants and pre-funded warrants, net of issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of Common Stock Warrants and Pre Funded Warrants Net of Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LesseeOperatingLeaseMonthlyRentalPaymentsForRemainingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee operating lease monthly rental payments for remaining term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LesseeOperatingLeaseMonthlyRentalPaymentsForRemainingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee Operating Lease Monthly Rental Payments For Remaining Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LesseeOperatingLeaseMonthlyRentalPaymentsForRemainingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lessee operating lease monthly rental payments for remaining term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Preferred Stock, Shares Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Preferred Stock, Shares Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PercentageOfRightToDevelopmentAndCommercialized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of right to development and commercialized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PercentageOfRightToDevelopmentAndCommercialized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of right to development and commercialized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PercentageOfRightToDevelopmentAndCommercialized_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of right to development and commercialized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFiveCommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Five Common Stock Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFiveCommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Five Common Stock Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFiveCommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025 Common Stock Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Unrealized Gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and Development Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Lender [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedAprilTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Issued April Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedAprilTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants Issued April Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedAprilTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants Issued April 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Milestone payment associated with contract liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Revenue Recognized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_JefferiesLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Jefferies LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_JefferiesLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Jefferies LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Comprehensive Income (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Einstein License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock Option</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LesseeOperatingLeaseMonthlyRentalPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee operating lease monthly rental payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LesseeOperatingLeaseMonthlyRentalPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee Operating Lease Monthly Rental Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LesseeOperatingLeaseMonthlyRentalPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of cash outflow of lessee operating lease monthly rental payments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EligibleToEarnAchievementOfCertainResearchAndDevelopmentMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Eligible to earn achievement of certain research and development milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EligibleToEarnAchievementOfCertainResearchAndDevelopmentMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Eligible To Earn Achievement Of Certain Research And Development Milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EligibleToEarnAchievementOfCertainResearchAndDevelopmentMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Eligible to earn achievement of certain research and development milestones.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net of accumulated amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized Contract Cost, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Securities, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_NonrefundableMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Nonrefundable milestone payments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_NonrefundableMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonrefundable Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_NonrefundableMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Nonrefundable milestone payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Assets, Noncurrent, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other long-term assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other long-term assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less: unamortized debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-sale, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Marketable securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceiveUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receive upfront payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceiveUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receive Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceiveUpfrontPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Receive Upfront Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantExercisePriceDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant, Exercise Price, Decrease</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantExercisePriceDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Number of Shares, Expired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePaymentUponTheRenewal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Milestone payment upon the renewal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePaymentUponTheRenewal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Milestone Payment Upon the Renewal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePaymentUponTheRenewal_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Milestone payment upon the renewal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Cost by Plan [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Stock-Based Compensation Included in Statement of Operations and Comprehensive Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AOCI Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateBasisForEffectiveRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Basis for Effective Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateBasisForEffectiveRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AchievementOfCcertainCommercialMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Achievement of certain commercial milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AchievementOfCcertainCommercialMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Achievement Of Ccertain Commercial Milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AchievementOfCcertainCommercialMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Achievement of certain commercial milestones.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Option to Extend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Extension of lease term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedNovemberTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants Issued November 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedNovemberTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Issued November Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedNovemberTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants Issued November Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Preferred Stock, Value, Issued, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Preferred Stock, Value, Issued, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Preferred Stock, Value, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, $0.001 par value; 10,000,000 shares authorized and 0 shares issued and outstanding at March 31, 2026 and December 31, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsMarketClosePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of option</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsMarketClosePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share based compensation arrangement by share based payment award fair value of options at market close price.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsMarketClosePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Based Compensation Arrangement By Share Based Payment Award Fair Value Of Options Market Close Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average grant date fair value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Offering Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for public offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Offerings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Amortization of Intangible Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestoneFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Milestone Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestoneFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Milestone Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value Assets Measured on Recurring Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized gain on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Long-term research and development contract liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development contract liability, net of current portion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research And Development Contract Liability Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Research and development contract liability, noncurrent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseFourthAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Laboratory Lease Fourth Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseFourthAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional Laboratory Lease Fourth Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Receivable, after Allowance for Credit Loss, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash obligation percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash obligation percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash obligation percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and contingencies (Note 12)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Leases [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashConcentrationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Concentrations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashConcentrationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Concentration Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashConcentrationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash Concentration Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders' Equity and Share-Based Payments [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Short-Term Borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other short-term debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and Administrative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Present value of lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Operating lease, liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Basis Spread on Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable interest rate (percentage)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Short-term Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term loan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Short-term debt, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-term debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TimeToLiquidityEvent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time to Liquidity Event</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TimeToLiquidityEvent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Time to Liquidity Event</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TimeToLiquidityEvent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Time to liquidity event</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee Lease Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Income (Expense), Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease Contractual Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Contractual Term [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLoansPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other current payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLoansPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Loans Payable, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UpFrontNonRefundablePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Up Front Non Refundable Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UpFrontNonRefundablePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Up front non refundable payment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UpFrontNonRefundablePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Up Front Non Refundable Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares outstanding, basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intrinsic value of exercisable stock options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFivePre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">TwoThousandTwentyFivePre-FundedWarrantsMember</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFivePre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">TwoThousandTwentyFivePre-FundedWarrantsMember</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFivePre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025 Pre-Funded Warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfMilestonePaymentsForEachNewIndicationOfLicensedProductMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Milestone payments for each new indication of licensed product</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfMilestonePaymentsForEachNewIndicationOfLicensedProductMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aggregate Amount Of Milestone Payments For Each New Indication Of Licensed Product Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfMilestonePaymentsForEachNewIndicationOfLicensedProductMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aggregate amount of milestone payments for each new indication of licensed product, maximum.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandSixteenOmnibusIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2016 Omnibus Incentive Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandSixteenOmnibusIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Sixteen Omnibus Incentive Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandSixteenOmnibusIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand sixteen omnibus incentive plan.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFiveUnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Five Underwriting Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFiveUnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Five Underwriting Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFiveUnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025 Underwriting Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock options granted purchase shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EquityInvestmentForResearchCollaborationAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity investment for research collaboration agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EquityInvestmentForResearchCollaborationAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Investment For Research Collaboration Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EquityInvestmentForResearchCollaborationAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity investment for research collaboration agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of private placement of pre-funded warrants and common stock warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term debt, net of current portion, unamortized debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Current portion of long-term debt, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">APIC, Share-Based Payment Arrangement, Increase for Cost Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total stockholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MerckMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Merck</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MerckMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Merck [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MerckMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Merck.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CompanyPaidCollaborationAndLicenseAgreementsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Company Paid Collaboration And License Agreements Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CompanyPaidCollaborationAndLicenseAgreementsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Company Paid Collaboration And License Agreements Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseInSecurityDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase in security deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseInSecurityDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase in security deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseInSecurityDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase in security deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Tranche Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tranche B</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfRestructuringDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Type of Restructuring [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Approach and Technique [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leasehold Improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leasehold Improvements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrancheBLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tranche B loan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrancheBLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tranche B loan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrancheBLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tranche B loan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OfferingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OfferingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OfferingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsNoteDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Note Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Accrued Liabilities [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Accrued Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other short-term assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InProcessResearchAndDevelopmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">In Process Research and Development [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InProcessResearchAndDevelopmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">In Process Research and Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plan Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating and Nonoperating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percenatage of equity issued and outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Ownership Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicensingFeesAndCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Licensing Fees and Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicensingFeesAndCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Licensing Fees And Costs Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicensingFeesAndCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Licensing fees and costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Product and Service Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cost of Goods and Services Sold, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Patent expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cost of Product and Service Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyTwoPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2022 Pre-Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyTwoPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Two Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyTwoPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Two Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Description and Basis of Presentation [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CertificatesOfDepositMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Certificate of Deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CertificatesOfDepositMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Certificates of Deposit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccruedContractManufacturingServicesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued contract manufacturing services current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccruedContractManufacturingServicesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Contract Manufacturing Services Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccruedContractManufacturingServicesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract manufacturing services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Shares remaining to be issued as of September 30, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Shares remaining to be issued as of December 31, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Purchase of shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding common stock warrants at March 31, 2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Milestone Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Milestone Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MilestonePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Milestone payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class Of Warrant Or Right [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementForPatentRightsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Einstein License</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementForPatentRightsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License Agreement For Patent Rights [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementForPatentRightsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License agreement for patent rights.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Policy [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryFifteenTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">February Fifteen Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryFifteenTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">February Fifteen Two Thousand Twenty Three [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Gross</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Property, Plant and Equipment, Gross, Ending Balance</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaboration and License Agreement Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAndLicenseAgreementDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration and License Agreement Description</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrancheALoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tranche A loan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrancheALoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tranche A loan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TrancheALoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tranche A loan</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Cost</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantPurchasesCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common stock warrant purchases common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantPurchasesCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock warrant purchases common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted average exercise price of common stock warrants at March 31, 2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Pre-funded warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Four Pre Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand twenty four pre funded warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments and Joint Ventures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Hierarchy and NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized gain from available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalAmountReceivableResearchDevelopmentRegulatoryAndSalesMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional amount receivable research development regulatory and sales milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalAmountReceivableResearchDevelopmentRegulatoryAndSalesMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Amount Receivable Research Development Regulatory And Sales Milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalAmountReceivableResearchDevelopmentRegulatoryAndSalesMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional amount receivable research development regulatory and sales milestones.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Number of Shares, Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFivePre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Four Common Stock Warrants And Two Thousand Twenty Five Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFivePre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Four Common Stock Warrants And Two Thousand Twenty Five Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFivePre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025 Common Stock Warrants and 2024 Pre-Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ScheduleOfCommonStockWarrantsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule Of Common Stock Warrants Activity Table Text Block.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ScheduleOfCommonStockWarrantsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Common Stock Warrant Activity</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Disposition of Property Plant Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gain (Loss) on disposal of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain (Loss) on disposal of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Property Plant Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss (gain) on fixed asset disposal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Loss (gain) on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average contractual life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Security, Excluded EPS Calculation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vesting [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementEnteredDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License agreement entered date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementEnteredDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License Agreement Entered Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementEnteredDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License agreement entered date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseSecondAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Laboratory Lease Second Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseSecondAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional Laboratory Lease Second Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalLaboratoryLeaseSecondAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Laboratory Lease Second Amendment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_VariableInterestEntitiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entities policy</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_VariableInterestEntitiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Variable Interest Entities policy</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_VariableInterestEntitiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationRevenueRecognizedAtAPointInTime_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration Revenue Recognized at a Point in Time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationRevenueRecognizedAtAPointInTime_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue recognized at a point in time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ContractLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contract liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ContractLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ContractLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueOptionPricingModelMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Technique, Option Pricing Model [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueOptionPricingModelMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Valuation Technique, Option Pricing Model [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EntertainmentLicenseAgreementForProgramMaterialCapitalizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entertainment, License Agreement for Program Material, Capitalized Cost</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_RecognizedGain_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Recognized Gain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_RecognizedGain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recognized Gain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ATMSalesAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ATM Sales Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ATMSalesAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">ATM Sales Agreement [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceivedEquityPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Received equity percentage</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EquityInvestmentNonrefundableUpfrontCashPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity investment nonrefundable upfront cash payment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares outstanding, diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Act File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfSignificantAccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary Of Significant Accounting Policies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfSignificantAccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Significant Accounting Policies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_SummaryOfSignificantAccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of significant accounting policies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AchievementOfCertainResearchAndDevelopmentMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Achievement of certain research and development milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AchievementOfCertainResearchAndDevelopmentMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Achievement Of Certain Research And Development Milestones</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AchievementOfCertainResearchAndDevelopmentMilestones_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Achievement of certain research and development milestones.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected volatility, minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ExercisePriceOfPreFundedWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Exercise Price of Pre-Funded Warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ExercisePriceOfPreFundedWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exercise Price of Pre-Funded Warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ExercisePriceOfPreFundedWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise Price of Pre-Fund warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Prepaid expenses and other short-term assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ThresholdAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Threshold Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ThresholdAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Threshold Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ThresholdAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Threshold Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USTreasurySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Treasury Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USTreasurySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Treasury securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">General and Administrative Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInResearchAndDevelopmentContractLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development contract liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInResearchAndDevelopmentContractLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Research And Development Contract Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInResearchAndDevelopmentContractLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase (decrease) in research and development contract liability.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel2AndLevel3TransfersAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value assets transfers between Level 2 and Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel2AndLevel3TransfersAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Assets Among Level2 And Level3 Transfers Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel2AndLevel3TransfersAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value assets among level 2 and level 3 transfers amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Additional Paid in Capital, Warrant Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid In Capital Warrant Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits, current portion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Assets, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Short-term research and development contract liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research And Development Contract Liability Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Research and development contract liability, current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentContractLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development contract liability, current portion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated useful lives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recent Accounting Pronouncements Not Yet Adopted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Future Minimum Lease Payments for Operating Lease</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Disposition of Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss (gain) on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">(Gain) on lease termination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeSeveranceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Severance [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeSeveranceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee Severance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock conversation description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnoCollaborationAndOptionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ono Collaboration and Option Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnoCollaborationAndOptionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Ono Collaboration and Option Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnoCollaborationAndOptionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ono Collaboration and Option Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk-free interest rate, minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Depreciation expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Convertible, Stock Price Trigger</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock minimum bid price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccruedContractResearchServicesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued contract research services current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccruedContractResearchServicesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Contract Research Services Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccruedContractResearchServicesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract research services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Shares, Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Shares, Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liability, current portion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Operating lease liabilities, current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction price recorded in liabilities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total operating expenses</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Research and Development Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recognized Revenue</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Stock Option Activity</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComputerEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Computer Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComputerEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Computer and office equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComputerEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Computer Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceivedIssuedAndOutstandingEquityPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percenatage of equity issued and outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceivedIssuedAndOutstandingEquityPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Received Issued And Outstanding Equity Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ReceivedIssuedAndOutstandingEquityPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Received Issued And Outstanding Equity Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock warrants life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Outstanding, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted average contract remaining life (in years) at March 31, 2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected dividend yield</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of Credit Facility [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Four Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Four Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Pre-Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel1AndLevel2TransfersAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Assets Among Level1 AndLevel2 Transfers Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel1AndLevel2TransfersAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair Value Assets Among Level1 AndLevel2 Transfers Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel1AndLevel2TransfersAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value assets transfers between Level 1 and Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Prepaid Expense and Other Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Final payment of debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Operating Lease Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IncreaseDecreaseInOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in operating lease liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesTradingAndAvailableForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesTradingAndAvailableForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading and Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesTradingAndAvailableForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Trading and Available-for-Sale, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue expected to be recognized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Payable, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandSubjectToGroundLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office space for lease</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandSubjectToGroundLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land Subject to Ground Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TechnologyTransferPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Technology Transfer Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TechnologyTransferPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Technology Transfer Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TechnologyTransferPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Technology transfer payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ChangeInOperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change In Operating Lease Right Of Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ChangeInOperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in operating lease right-of-use asset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ChangeInOperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Decrease in the carrying amount of right-of-use-assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PaymentOfTermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayment of term loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PaymentOfTermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment of term loan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PaymentOfTermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payment of term loan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisposals_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash collected from sale of fixed assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisposals_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Disposals</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisposals_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Disposals of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FirstResearchTermProcessedMilestonePaymentUnderAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First Research Term Processed Milestone Payment Under Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FirstResearchTermProcessedMilestonePaymentUnderAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Research Term Processed Milestone Payment Under Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FirstResearchTermProcessedMilestonePaymentUnderAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">First Research Term Processed Milestone Payment Under Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026 (remaining 9 months)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccretionOfFinalPaymentOnTermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of final payment on term loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccretionOfFinalPaymentOnTermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accretion of final payment on term loan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AccretionOfFinalPaymentOnTermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accretion of final payment on term loan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PublicOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PublicOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Public Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PublicOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFourPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Four Common Stock Warrants And Two Thousand Twenty Four Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFourPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Four Common Stock Warrants And Two Thousand Twenty Four Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFourPre-FundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Common Stock Warrants and 2024 Pre-Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash equivalents and marketable securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Success-BasedResearchDevelopmentAndCommercialMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Success-based Research, Development and Commercial Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Success-BasedResearchDevelopmentAndCommercialMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Success-based Research, Development and Commercial Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_Success-BasedResearchDevelopmentAndCommercialMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Success-based research, development and commercial milestone payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Nonvested Restricted Stock Units Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments and Joint Ventures Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Method Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of common stock from ATM offering, net of sales agent commission and fees, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of common stock from ATM offering, net of sales agent commission and fees, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common stock from ATM offering, net of sales agent commissions and fees, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Exercise Price, Forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedFromPreFundedWarrantsFinancing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceed From Pre Funded Warrants Financing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedFromPreFundedWarrantsFinancing_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceed From Pre Funded Warrants Financing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedFromPreFundedWarrantsFinancing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceed From Pre Funded Warrants Financing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PropertyPlantAndEquipmentDisposalGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Disposal of property and equipment, gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PropertyPlantAndEquipmentDisposalGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property Plant And Equipment Disposal Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PropertyPlantAndEquipmentDisposalGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Property plant and equipment disposal gross.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesAcquiredWeightedAverageDiscountToNetAssetsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Acquired, Weighted Average Discount to Net Assets, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesAcquiredWeightedAverageDiscountToNetAssetsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percent of ordinary shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class Of Warrant Or Right [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AlbertEinsteinCollegeOfMedicineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Albert Einstein College Of Medicine</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AlbertEinsteinCollegeOfMedicineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Albert Einstein College Of Medicine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AlbertEinsteinCollegeOfMedicineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Albert Einstein College of Medicine.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Property and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Weighted Average Exercise Price, Outstanding Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Weighted Average Exercise Price, Outstanding Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedSeptemberTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Issued September Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedSeptemberTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants Issued September Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsIssuedSeptemberTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants Issued September 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring and Nonrecurring [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-in Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAgreementWithMerckMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaboration Agreement with Merck</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAgreementWithMerckMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaboration Agreement With Merck [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAgreementWithMerckMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration agreement with merck.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_HCWainwrightCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">HC Wainwright &amp;amp; Co LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_HCWainwrightCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">HC Wainwright &amp; Co LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_HCWainwrightCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">HC Wainwright &amp; Co LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Frequency</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Frequency [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityDepositLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityDepositLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Deposit Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk-free interest rate, maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements, Recurring Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Ex Transition Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Ex Transition Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Equity Method Investments [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: imputed interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, Undiscounted Excess Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DevelopmentAndCommercialMilestonePaymentPayableCuoBiopharma_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Development and commercial milestone payment payable cuo biopharma</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DevelopmentAndCommercialMilestonePaymentPayableCuoBiopharma_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Development and commercial milestone payment payable cuo biopharma</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DevelopmentAndCommercialMilestonePaymentPayableCuoBiopharma_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Development and commercial milestone payment payable cuo biopharma</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DevelopmentAndRegulatoryMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Development and Regulatory Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DevelopmentAndRegulatoryMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Development and Regulatory Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DevelopmentAndRegulatoryMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Development and regulatory milestone payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ImmunoScapeCollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ImmunoScape Collaboration and License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ImmunoScapeCollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ImmunoScape Collaboration and License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ImmunoScapeCollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">ImmunoScape Collaboration and License Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdjustmentRelatedToLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustment related to lease liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdjustmentRelatedToLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment Related To Lease Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdjustmentRelatedToLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjustment related to lease liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfMilestonePaymentsForEachProductProcessOrServiceMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Milestone payments for each product, process or service</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfMilestonePaymentsForEachProductProcessOrServiceMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aggregate Amount Of Milestone Payments For Each Product Process Or Service Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AggregateAmountOfMilestonePaymentsForEachProductProcessOrServiceMaximum_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The maximum aggregate amount of milestone payments for each product, process or service.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ScheduleOfCollaborationRevenueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Collaboration Revenue [Table TextBlock]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ScheduleOfCollaborationRevenueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of Collaboration Revenue [Table TextBlock]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ScheduleOfCollaborationRevenueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Collaboration revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other income, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total other income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Component</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OptionTimeBasedPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Option Time Based Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OptionTimeBasedPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Option Time Based Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OptionTimeBasedPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Option time based payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Future Minimum Lease Payments for Operating Lease</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateThirdYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License monthly rental rate third year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateThirdYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License monthly rental rate third year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateThirdYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License monthly rental rate third year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalTimeBasedPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional time based payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalTimeBasedPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Time Based Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_AdditionalTimeBasedPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional Time Based Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnNovemberSixteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">On November Sixteen Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnNovemberSixteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">On November Sixteen Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnNovemberSixteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">On November 16, 2022 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common Stock Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025 Common Stock Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">February Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">February Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FebruaryTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">February, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Depletion and Amortization, Nonproduction, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization, Nonproduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ClassOfPreFundedWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Pre Funded Warrant Or Right Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ClassOfPreFundedWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class Of Pre Funded Warrant Or Right Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ClassOfPreFundedWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding pre-funded warrants at March 31, 2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Exercise Price, Exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Value, Issued, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Value, Issued, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Value, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, $0.001 par value; 300,000,000 shares authorized; 3,255,359 and 3,220,707 shares issued and outstanding at March 31, 2026 and December 31, 2025, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Long-Term Debt, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current portion of long-term debt, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Current portion of long-term debt, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsettled cash receivable from the sale of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromSaleOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Laboratory Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfFurnitureAndFixtures_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Furniture and Fixtures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfFurnitureAndFixtures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash collected from sale of assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DebtInstrumentFinalFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt Instrument Final Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DebtInstrumentFinalFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Final Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_DebtInstrumentFinalFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Final fee (percentage)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommercialMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commercial milestone payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommercialMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commercial Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommercialMilestonePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commercial Milestone Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pre Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Pre Funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments And Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments And Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commitments and contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFinancingTransactionTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities Financing Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFinancingTransactionTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Financing Transaction [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lender Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndOtherAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndOtherAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Other Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaboration Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loan with First Citizens Bank (formerly with Silicon Valley Bank)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross Unrealized Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PurchaseOfAdditionalSharesOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of Additional Shares Of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PurchaseOfAdditionalSharesOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase of Additional Shares Of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PurchaseOfAdditionalSharesOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Purchase of additional shares of common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income Tax Expense (Benefit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriting Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Underwriting Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_UnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TotalCollaborationRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total collaboration revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TotalCollaborationRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Collaboration Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TotalCollaborationRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Total Collaboration Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Frequency</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Frequency [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel2AndLevel3TransferAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Assets Among Level2 AndLevel3 Transfer Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel2AndLevel3TransferAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair Value Assets Among Level2 AndLevel3 Transfer Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_FairValueAssetsAmongLevel2AndLevel3TransferAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value assets transfers between Level 2 and Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinLicenseAndServiceAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Einstein License And Service Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinLicenseAndServiceAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Einstein License And Service Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_EinsteinLicenseAndServiceAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Einstein license and service agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net proceeds from offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from issuance of common stock, warrants and pre-funded warrants, net of transaction costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share Based Compensation Arrangement By Share Based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated other comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Other Comprehensive Income (Loss), Net of Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments to Acquire Property, Plant, and Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchases of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Property, Plant, and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantAtACombinedOfferingPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock Warrant at a combined offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantAtACombinedOfferingPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common Stock Warrant at a combined offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CommonStockWarrantAtACombinedOfferingPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Warrant at a combined offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Property Plant And Equipment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Remaining Contractual Life (in Years), Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Financial Instruments, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stock-Based Compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsPurchaseSharesOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants purchase shares of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsPurchaseSharesOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants purchase shares of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_WarrantsPurchaseSharesOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants purchase shares of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of common stock, number of shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Number of Shares Issued in Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common stock from public offerings, net of underwriter discounts, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentSalvageValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, Salvage Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentSalvageValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale fully Depreciated lab Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CapitalizedLicenseExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capitalized license expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CapitalizedLicenseExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized License Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CapitalizedLicenseExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capitalized License Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per common share, diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromAtTimeMarketOfferingNetOfCommissionAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From At Time Market Offering Net Of Commission And Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromAtTimeMarketOfferingNetOfCommissionAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from At the time market offering net of commission and fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ProceedsFromAtTimeMarketOfferingNetOfCommissionAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from ATM offering, net of sales agent commissions and fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash obligation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Obligation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CashObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash obligation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleConversionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Convertible, Conversion Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleConversionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Closing Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Restricted Cash and Cash Equivalents, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash used to collateralize a credit card</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalent, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrantOfferPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Pre-Funded Warrant Offer Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrantOfferPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pre-Funded Warrant Offer Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_PreFundedWarrantOfferPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre-Funded Warrant Offer Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_NumberOfSupportingTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number ff supporting technology.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_NumberOfSupportingTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Supporting Technology</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_NumberOfSupportingTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of supporting technology</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAgreementWithLGChemLifeSciencesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaboration Agreement with LG Chem Life Sciences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAgreementWithLGChemLifeSciencesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaboration Agreement With L G Chem Life Sciences [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationAgreementWithLGChemLifeSciencesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration agreement with LG Chem Life Sciences.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsFiniteLivedPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Patent Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsFiniteLivedPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Assets, Finite-Lived, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentActivitiesOptionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Research and Development Activities Option Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentActivitiesOptionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Activities Option Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ResearchAndDevelopmentActivitiesOptionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development activities option period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Counterparty Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Counterparty Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateRemainderOfTheTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License monthly rental rate remainder of the term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateRemainderOfTheTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License monthly rental rate remainder of the term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateRemainderOfTheTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License monthly rental rate remainder of the term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalPartialCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License Monthly Rental Partial Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalPartialCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License Monthly Rent Partial Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalPartialCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License monthly rental partial credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average remaining lease term (years)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Remaining Lease Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock split</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity Note, Stock Split, Conversion Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investor</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LicenseAgreementTermsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LicenseAgreementTermsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License Agreement Terms [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AwardDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Award Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AwardDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Award Date [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Property, Plant and Equipment, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Property, Plant and Equipment, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property and equipment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateFirstYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License monthly rental rate first year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateFirstYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License monthly rental rate first year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_LicenseMonthlyRentalRateFirstYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">License monthly rental rate first year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationRevenueRecognizedOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaboration Revenue Recognized Over Time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationRevenueRecognizedOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaboration Revenue Recognized Over Time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_CollaborationRevenueRecognizedOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue recognized over time</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_TwoThousandTwentyTwoPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two Thousand Twenty Two Pre Funded Warrants [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, cash equivalents, and restricted cash at end of period</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_StifelNicolausAndCompanyIncorporatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Nicolaus and Company Inc.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_StifelNicolausAndCompanyIncorporatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel Nicolaus And Company Incorporated Member</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnAprilFourteenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">On April Fourteen Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Contract [Domain]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Securities Available For Sale [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from operating activities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ClassOfPreFundedWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Pre Funded Warrant Or Right Exercise Price Of Warrants Or Rights 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_ClassOfPreFundedWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class Of Pre Funded Warrant Or Right Exercise Price Of Warrants Or Rights 1</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MonthlyInstallments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Monthly installments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MonthlyInstallments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Monthly installments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_MonthlyInstallments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Monthly installments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnSeptemberTwentySixTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">On September 26, 2024 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnSeptemberTwentySixTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">On September Twenty Six Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_OnSeptemberTwentySixTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">On September Twenty Six Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TrademarksMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trademarks</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TrademarksMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trademarks [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleThresholdTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Convertible, Threshold Trading Days</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_BICollaborationAndLicenseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">BI Collaboration and License Agreement [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Indefinite-Lived Intangible Assets [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_GainLossOnRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Gain and loss on right of use asset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_GainLossOnRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain Loss On Right Of Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cue_GainLossOnRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on right-of-use asset</link:label>
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cue_OperatingLeaseAgreementForAdditionalLaboratorySpaceMember" xlink:to="cue_OperatingLeaseAgreementForAdditionalLaboratorySpaceMember_lbl"/>
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  <xsd:element id="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesShares" name="IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
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  <xsd:element id="cue_AdditionalLaboratoryLeaseFourthAmendmentMember" name="AdditionalLaboratoryLeaseFourthAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsExercisableIntrinsicFairValuePerShare" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsExercisableIntrinsicFairValuePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
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  <xsd:element id="cue_TwoThousandTwentyFourPreFundedWarrantsMember" name="TwoThousandTwentyFourPreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_AggregateAmountOfAdditionalMilestonePaymentsMaximum" name="AggregateAmountOfAdditionalMilestonePaymentsMaximum" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_LesseeOperatingLeaseMonthlyRentalPayments" name="LesseeOperatingLeaseMonthlyRentalPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ReverseStockSplit1PolicyTextBlock" name="ReverseStockSplit1PolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_ReceiveUpfrontPayments" name="ReceiveUpfrontPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_TwoThousandTwentyFiveUnderwritingAgreementMember" name="TwoThousandTwentyFiveUnderwritingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_PercentageOfRightToDevelopmentAndCommercialized" name="PercentageOfRightToDevelopmentAndCommercialized" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="cue_CashObligationPercentage" name="CashObligationPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_PurchaseOfAdditionalSharesOfCommonStock" name="PurchaseOfAdditionalSharesOfCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_TwoThousandTwentyTwoPreFundedWarrantsMember" name="TwoThousandTwentyTwoPreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_EquityInvestmentNonrefundableUpfrontCashPayment" name="EquityInvestmentNonrefundableUpfrontCashPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_AccruedContractManufacturingServicesCurrent" name="AccruedContractManufacturingServicesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_LesseeOperatingLeaseMonthlyRentalPaymentsForRemainingTerm" name="LesseeOperatingLeaseMonthlyRentalPaymentsForRemainingTerm" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ScheduleOfCollaborationRevenueTableTextBlock" name="ScheduleOfCollaborationRevenueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_OperatingLeaseAgreementForAdditionalLaboratorySpaceMember" name="OperatingLeaseAgreementForAdditionalLaboratorySpaceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_ATMSalesAgreementMember" name="ATMSalesAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_OfferingExpenses" name="OfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_TwoThousandTwentyFiveCommonStockWarrantsMember" name="TwoThousandTwentyFiveCommonStockWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_CapitalizedLicenseExpenses" name="CapitalizedLicenseExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_MerckMember" name="MerckMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_TotalReceiveUpfrontPayments" name="TotalReceiveUpfrontPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_PlacementFees" name="PlacementFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_AccretionOfFinalPaymentOnTermLoan" name="AccretionOfFinalPaymentOnTermLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_CollaborationAndLicenseAgreementMember" name="CollaborationAndLicenseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_DevelopmentAndRegulatoryMilestonePayments" name="DevelopmentAndRegulatoryMilestonePayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_LicenseMonthlyRentalRateThirdYear" name="LicenseMonthlyRentalRateThirdYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_CollaborationAndLicenseAgreementWithImmunoScapePteLtdMember" name="CollaborationAndLicenseAgreementWithImmunoScapePteLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_HCWainwrightCoLLCMember" name="HCWainwrightCoLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_AccruedContractResearchServicesCurrent" name="AccruedContractResearchServicesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_AdditionalMilestonePayments" name="AdditionalMilestonePayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFivePre-FundedWarrantsMember" name="TwoThousandTwentyFourCommonStockWarrantsAndTwoThousandTwentyFivePre-FundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_TwoThousandTwentyTwoPre-FundedWarrantsMember" name="TwoThousandTwentyTwoPre-FundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCostsAmount" name="IssuanceOfCommonStockWarrantsAndPreFundedWarrantsNetOfIssuanceCostsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid" name="ProceedsFromSaleOfCommonStockNetCommissionPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_AchievementOfCertainResearchAndDevelopmentMilestones" name="AchievementOfCertainResearchAndDevelopmentMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_TwoThousandSixteenOmnibusIncentivePlanMember" name="TwoThousandSixteenOmnibusIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_VariableInterestEntitiesPolicy" name="VariableInterestEntitiesPolicy" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_SublicensingRevenuesReceivedPercentage" name="SublicensingRevenuesReceivedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_StifelNicolausAndCompanyIncorporatedMember" name="StifelNicolausAndCompanyIncorporatedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_AchievementOfCcertainCommercialMilestones" name="AchievementOfCcertainCommercialMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_LicenseMonthlyRentalRateFirstYear" name="LicenseMonthlyRentalRateFirstYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ResearchAndDevelopmentActivitiesOptionPeriod" name="ResearchAndDevelopmentActivitiesOptionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_AggregateAmountOfMilestonePaymentsForEachNewIndicationOfLicensedProductMaximum" name="AggregateAmountOfMilestonePaymentsForEachNewIndicationOfLicensedProductMaximum" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_FairValueAssetsAmongLevel2AndLevel3TransfersAmount" name="FairValueAssetsAmongLevel2AndLevel3TransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_LicenseMonthlyRentalPartialCredit" name="LicenseMonthlyRentalPartialCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_OnAprilFourteenTwoThousandTwentyFiveMember" name="OnAprilFourteenTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_FullTimeEmployeSalaryPayableInFirstResearchTerm" name="FullTimeEmployeSalaryPayableInFirstResearchTerm" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_FebruaryFifteenTwoThousandTwentyThreeMember" name="FebruaryFifteenTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_FairValueAssetsAmongLevel1AndLevel2TransfersAmount" name="FairValueAssetsAmongLevel1AndLevel2TransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_OnNovemberSixteenTwoThousandTwentyTwoMember" name="OnNovemberSixteenTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_OnoCollaborationAndOptionAgreementMember" name="OnoCollaborationAndOptionAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_ProceedsFromSaleOfCommonStockNetCommissionPaid1" name="ProceedsFromSaleOfCommonStockNetCommissionPaid1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ApproximatelyReceivedOfUpfrontPayments" name="ApproximatelyReceivedOfUpfrontPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ProceedsFromSaleOfCommonStock" name="ProceedsFromSaleOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_PublicOfferingPolicyTextBlock" name="PublicOfferingPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_UnderwritingAgreementMember" name="UnderwritingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_NumberOfSupportingTechnology" name="NumberOfSupportingTechnology" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="cue_Long-DurationContractsAssumptionsByProductAndGuaranteeRisk-FreeRate" name="Long-DurationContractsAssumptionsByProductAndGuaranteeRisk-FreeRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="cue_LicensingFeesAndCostsPolicyTextBlock" name="LicensingFeesAndCostsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_TrademarkPolicyTextBlock" name="TrademarkPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_PlacementAgentFeesAndOfferingExpenses" name="PlacementAgentFeesAndOfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_MilestoneFees" name="MilestoneFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_WarrantsIssuedNovemberTwoThousandTwentyTwoMember" name="WarrantsIssuedNovemberTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_CashObligation" name="CashObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_TrancheBLoanMember" name="TrancheBLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_AlbertEinsteinCollegeOfMedicineMember" name="AlbertEinsteinCollegeOfMedicineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_WarrantsIssuedAprilTwoThousandTwentyFiveMember" name="WarrantsIssuedAprilTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_TwoThousandTwentyFivePre-FundedWarrantsMember" name="TwoThousandTwentyFivePre-FundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_LicenseAgreementEnteredDate" name="LicenseAgreementEnteredDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesAmount" name="IssuanceOfCommonStockFromAtmOfferingNetOfSalesAgentCommissionAndFeesAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ChangeInOperatingLeaseRightOfUseAsset" name="ChangeInOperatingLeaseRightOfUseAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_WarrantsTextBlock" name="WarrantsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_IncreaseDecreaseInOperatingLeaseLiabilities" name="IncreaseDecreaseInOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_AdditionalLaboratoryLeaseThirdAmendmentMember" name="AdditionalLaboratoryLeaseThirdAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_AdditionalCommonStockWarrantPurchasesCommonShares" name="AdditionalCommonStockWarrantPurchasesCommonShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_CurrentLiabilitiesMember" name="CurrentLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_PreFundedWarrants" name="PreFundedWarrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_LabSpaceLeaseMember" name="LabSpaceLeaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_IncreaseDecreaseInDepositLiabilities" name="IncreaseDecreaseInDepositLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_CommonStockWarrantsMember" name="CommonStockWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_ThresholdAmount" name="ThresholdAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_TwoThousandTwentyFourPre-FundedWarrantsMember" name="TwoThousandTwentyFourPre-FundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_EinsteinMember" name="EinsteinMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_FebruaryTwoThousandTwentyFiveMember" name="FebruaryTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_OperatingLeasesRentExpensesNet" name="OperatingLeasesRentExpensesNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_IncreaseDecreaseInOtherPayable" name="IncreaseDecreaseInOtherPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_ScheduleOfCommonStockWarrantsActivityTableTextBlock" name="ScheduleOfCommonStockWarrantsActivityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_DebtInstrumentFinalFee" name="DebtInstrumentFinalFee" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_UpFrontNonRefundablePayment" name="UpFrontNonRefundablePayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ReceivedEquityPercentage" name="ReceivedEquityPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="cue_AccretionOfFinalPayment" name="AccretionOfFinalPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ReceivedIssuedAndOutstandingEquityPercentage" name="ReceivedIssuedAndOutstandingEquityPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="cue_PreFundedWarrantsMember" name="PreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_WarrantsPurchaseSharesOfCommonStock" name="WarrantsPurchaseSharesOfCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_TrancheALoanMember" name="TrancheALoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_TotalCollaborationRevenue" name="TotalCollaborationRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_LaboratoryEquipmentMember" name="LaboratoryEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_TechnologyTransferPayments" name="TechnologyTransferPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_UpfrontPayment" name="UpfrontPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_CommonStockOptionsMember" name="CommonStockOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_EstimatedUsefulLivesOfAssetsTableTextBlock" name="EstimatedUsefulLivesOfAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_ProceedsFromAtTimeMarketOfferingNetOfCommissionAndFees" name="ProceedsFromAtTimeMarketOfferingNetOfCommissionAndFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_OppenheimerCoIncMember" name="OppenheimerCoIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_MilestonePaymentsReceived" name="MilestonePaymentsReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_RecognizedGain" name="RecognizedGain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_ExercisePriceOfPreFundedWarrant" name="ExercisePriceOfPreFundedWarrant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="cue_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsMarketClosePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueOfOptionsMarketClosePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="cue_AdditionalTimeBasedPayment" name="AdditionalTimeBasedPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="cue_TermLoanAgreementMember" name="TermLoanAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_FirstAmendmentMember" name="FirstAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_AdditionalLaboratoryLeaseSecondAmendmentMember" name="AdditionalLaboratoryLeaseSecondAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="cue_IncreaseDecreaseInResearchAndDevelopmentContractLiability" name="IncreaseDecreaseInResearchAndDevelopmentContractLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="cue_LumpSumPayment" name="LumpSumPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
</xsd:schema>
