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    <import namespace="http://fasb.org/srt-types/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-types-2023.xsd" />
    <element id="GNTA_SalesAgreementMember" name="SalesAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_EquityIncentivePlanTwoThousandTwentyOneToTwoThousandThirtyFiveMember" name="EquityIncentivePlanTwoThousandTwentyOneToTwoThousandThirtyFiveMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_UnderswritersCommonShareWarrantsMember" name="UnderswritersCommonShareWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_UnderswritersWarrantsMember" name="UnderswritersWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_EquipmentAndFurnitureMember" name="EquipmentAndFurnitureMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ElectronicOfficeEquipmentMember" name="ElectronicOfficeEquipmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ResearchAndDevelopmentExpenseRelatedPartyMember" name="ResearchAndDevelopmentExpenseRelatedPartyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_DirectorAndEmployeesMember" name="DirectorAndEmployeesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_DirectorAndOfficersAndEmployeeMember" name="DirectorAndOfficersAndEmployeeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_GeneralAndAdministrativeExpenseRelatedPartyMember" name="GeneralAndAdministrativeExpenseRelatedPartyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ThirdPartiesMember" name="ThirdPartiesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ConsultantsAndOtherThirdPartiesMember" name="ConsultantsAndOtherThirdPartiesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_RelatedPartiesMember" name="RelatedPartiesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_MaterialsAndSuppliesMember" name="MaterialsAndSuppliesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_CompensationMember" name="CompensationMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_TravelAndEntertainmentMember" name="TravelAndEntertainmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OtherMember" name="OtherMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AccountingLegalAndOtherProfessionalMember" name="AccountingLegalAndOtherProfessionalMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_FacilityAndInsuranceRelatedMember" name="FacilityAndInsuranceRelatedMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_SanRaffaeleHospitalMember" name="SanRaffaeleHospitalMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_CarloRussoMember" name="CarloRussoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_RichardSlanskyMember" name="RichardSlanskyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_SanRaffaeleHospitalOSRMember" name="SanRaffaeleHospitalOSRMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PierluigiParacchiMember" name="PierluigiParacchiMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_XDGBiomedLLCMember" name="XDGBiomedLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_NaldiniMember" name="NaldiniMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_DrGentnerMember" name="DrGentnerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_Dr.GentnerMember" name="Dr.GentnerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_GentnerMember" name="GentnerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_Mr.RussoMember" name="Mr.RussoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_FirstIndicationMember" name="FirstIndicationMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_SecondIndicationMember" name="SecondIndicationMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ThirdIndicationMember" name="ThirdIndicationMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OSRLicenseAgreementMember" name="OSRLicenseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OSROperatingLeasesAndOfficeRentMember" name="OSROperatingLeasesAndOfficeRentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OSRAmendedAndRestatedLicenseAgreementMember" name="OSRAmendedAndRestatedLicenseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AGCManufacturingMember" name="AGCManufacturingMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_InsurancePolicyMember" name="InsurancePolicyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AGCBiologicsAgreementMember" name="AGCBiologicsAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AGCAgreementMember" name="AGCAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_FrameworkServiceAgreementMember" name="FrameworkServiceAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ProcessTransferAgreementMember" name="ProcessTransferAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_LeaseAgreementMember" name="LeaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_SponsoredResearchAgreementMember" name="SponsoredResearchAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_FinanceIncomeExpenses" name="FinanceIncomeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_IncreaseDecreaseInAccountsPayableRelatedParty" name="IncreaseDecreaseInAccountsPayableRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_IncreaseDecreaseInAccruedLiabilitiesRelatedParty" name="IncreaseDecreaseInAccruedLiabilitiesRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_FinancingActivities" name="FinancingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_DisclosureGeneralAndAdministrativeAbstract" name="DisclosureGeneralAndAdministrativeAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_GeneralAndAdministrativeDisclosureTextBlock" name="GeneralAndAdministrativeDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_NetLossAndComprehensiveLossPolicyTextBlock" name="NetLossAndComprehensiveLossPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_EmergingGrowthCompanyStatusPolicyTextBlock" name="EmergingGrowthCompanyStatusPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_TaxCreditOnInvestmentsInResearchAndDevelopmentPolicyTextBlock" name="TaxCreditOnInvestmentsInResearchAndDevelopmentPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_RepresentativeWarrantsPolicyTextBlock" name="RepresentativeWarrantsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_NoncurrentAssetsRightofUseROUPolicyTextBlock" name="NoncurrentAssetsRightofUseROUPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ScheduleOfAccountsPayableToRelatedPartiesTableTextBlock" name="ScheduleOfAccountsPayableToRelatedPartiesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ScheduleOfAccruedExpenseToRelatedPartiesTableTextBlock" name="ScheduleOfAccruedExpenseToRelatedPartiesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PercentageOfSharesOutstanding" name="PercentageOfSharesOutstanding" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ClassOfWarrantOrRightExercisablePercentageOfWarrantsOrRights1" name="ClassOfWarrantOrRightExercisablePercentageOfWarrantsOrRights1" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OperatingLeaseExpenseMonthlyPayment" name="OperatingLeaseExpenseMonthlyPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_NetPresentValueOfRightOfUseAssetAndLiability" name="NetPresentValueOfRightOfUseAssetAndLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PercentageOfTaxableIncome" name="PercentageOfTaxableIncome" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ResearchAndDevelopmentTaxCredit" name="ResearchAndDevelopmentTaxCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PercentageofValueAddedTax" name="PercentageofValueAddedTax" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PrepaidExpense" name="PrepaidExpense" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ResearchAndDevelopmentTaxCreditNoncurrent" name="ResearchAndDevelopmentTaxCreditNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OtherNoncurrentAssets" name="OtherNoncurrentAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ResearchAndDevelopmentTaxCreditPercentage" name="ResearchAndDevelopmentTaxCreditPercentage" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AllowanceForCorporateEquity" name="AllowanceForCorporateEquity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeDescription" name="DefinedContributionPlanMaximumAnnualContributionsPerEmployeeDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTermGranted" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTermGranted" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedAggregateIntrinsicValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_StockIssuedDuringPeriodSharesStockOptionsVestedAndExercised" name="StockIssuedDuringPeriodSharesStockOptionsVestedAndExercised" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExercisedInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExercisedInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisedAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisedAggregateIntrinsicValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledOrForfeitedAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledOrForfeitedAggregateIntrinsicValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AccruedLiabilitiesRelatedParty" name="AccruedLiabilitiesRelatedParty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PercentageOfAnnualBonus" name="PercentageOfAnnualBonus" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AnnualFee" name="AnnualFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ClinicalExpense" name="ClinicalExpense" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_FutureOptionFees" name="FutureOptionFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_UpfrontFee" name="UpfrontFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_LicenseFee" name="LicenseFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OptionFee" name="OptionFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_AgreementFee" name="AgreementFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_NetProjectCosts" name="NetProjectCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ContractualObligationDueInPaymentsByPeriodLessThanYear" name="ContractualObligationDueInPaymentsByPeriodLessThanYear" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ContractualObligationDueInOneToThirdYear" name="ContractualObligationDueInOneToThirdYear" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_CumulativeExpense" name="CumulativeExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PotentialMilestone" name="PotentialMilestone" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_RoyaltyFeePercentage" name="RoyaltyFeePercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_TechnologyTransferFee" name="TechnologyTransferFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_PaymentForFirstTrancheAmount" name="PaymentForFirstTrancheAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_OptionExerciseFee" name="OptionExerciseFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GNTA_ExtensionFee" name="ExtensionFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
