<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 21-December-2023 [11:31:10] {PM}-->
<schema targetNamespace="http://www.magentatx.com/20230930" elementFormDefault="qualified" xmlns:dnth="http://www.magentatx.com/20230930" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2023" xmlns:country="http://xbrl.sec.gov/country/2023" xmlns:currency="http://xbrl.sec.gov/currency/2023" xmlns:dei="http://xbrl.sec.gov/dei/2023" xmlns:exch="http://xbrl.sec.gov/exch/2023" xmlns:naics="http://xbrl.sec.gov/naics/2023" xmlns:sic="http://xbrl.sec.gov/sic/2023" xmlns:us-types="http://fasb.org/us-types/2023" xmlns:stpr="http://xbrl.sec.gov/stpr/2023" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" xmlns:srt="http://fasb.org/srt/2023" xmlns:srt-types="http://fasb.org/srt-types/2023" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21">
<annotation>
<appinfo>
<link:roleType roleURI="http://www.magentatx.com/role/CoverPage" id="CoverPage">
<link:definition>1001 - Document - Cover Page</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CondensedConsolidatedBalanceSheetsUnaudited" id="CondensedConsolidatedBalanceSheetsUnaudited">
<link:definition>1002 - Statement - Condensed Consolidated Balance Sheets (unaudited)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CondensedConsolidatedBalanceSheetsParenthetical" id="CondensedConsolidatedBalanceSheetsParenthetical">
<link:definition>1003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited" id="CondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited">
<link:definition>1004 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CondensedConsolidatedStatementsOfChangesInConvertiblePreferredStockAndStockholdersEquityDeficit" id="CondensedConsolidatedStatementsOfChangesInConvertiblePreferredStockAndStockholdersEquityDeficit">
<link:definition>1005 - Statement - Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity/(Deficit)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CondensedConsolidatedStatementsOfChangesInConvertiblePreferredStockAndStockholdersEquityDeficitParenthetical" id="CondensedConsolidatedStatementsOfChangesInConvertiblePreferredStockAndStockholdersEquityDeficitParenthetical">
<link:definition>1006 - Statement - Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity/(Deficit) (Parenthetical)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CondensedConsolidatedStatementsOfCashFlows" id="CondensedConsolidatedStatementsOfCashFlows">
<link:definition>1007 - Statement - Condensed Consolidated Statements of Cash Flows</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/OrganizationDescriptionOfBusinessAndLiquidity" id="OrganizationDescriptionOfBusinessAndLiquidity">
<link:definition>1008 - Disclosure - Organization, Description of Business and Liquidity</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
<link:definition>1009 - Disclosure - Summary of Significant Accounting Policies</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ReverseMerger" id="ReverseMerger">
<link:definition>1010 - Disclosure - Reverse Merger</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ShortTermInvestments" id="ShortTermInvestments">
<link:definition>1011 - Disclosure - Short-Term Investments</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PrepaidExpensesAndOtherCurrentAssets" id="PrepaidExpensesAndOtherCurrentAssets">
<link:definition>1012 - Disclosure - Prepaid Expenses and Other Current Assets</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PropertyAndEquipment" id="PropertyAndEquipment">
<link:definition>1013 - Disclosure - Property and Equipment</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/FairValueOfFinancialInstruments" id="FairValueOfFinancialInstruments">
<link:definition>1014 - Disclosure - Fair Value of Financial Instruments</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/AccruedExpenses" id="AccruedExpenses">
<link:definition>1015 - Disclosure - Accrued Expenses</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/Leases" id="Leases">
<link:definition>1016 - Disclosure - Leases</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ConvertiblePreferredStock" id="ConvertiblePreferredStock">
<link:definition>1017 - Disclosure - Convertible Preferred Stock</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CommonStock" id="CommonStock">
<link:definition>1018 - Disclosure - Common Stock</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PreferredStockAndConvertiblePreferredStock" id="PreferredStockAndConvertiblePreferredStock">
<link:definition>1019 - Disclosure - Preferred Stock and Convertible Preferred Stock</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensation" id="StockBasedCompensation">
<link:definition>1020 - Disclosure - Stock-Based Compensation</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/LicenseRevenueRelatedParty" id="LicenseRevenueRelatedParty">
<link:definition>1021 - Disclosure - License Revenue - Related Party</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/IncomeTaxes" id="IncomeTaxes">
<link:definition>1022 - Disclosure - Income Taxes</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/NetLossPerShare" id="NetLossPerShare">
<link:definition>1023 - Disclosure - Net Loss Per Share</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
<link:definition>1024 - Disclosure - Commitments and Contingencies</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/RelatedPartyTransactions" id="RelatedPartyTransactions">
<link:definition>1025 - Disclosure - Related Party Transactions</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SubsequentEvents" id="SubsequentEvents">
<link:definition>1026 - Disclosure - Subsequent Events</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
<link:definition>1027 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SummaryOfSignificantAccountingPoliciesTables" id="SummaryOfSignificantAccountingPoliciesTables">
<link:definition>1028 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ReverseMergerTables" id="ReverseMergerTables">
<link:definition>1029 - Disclosure - Reverse Merger (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ShortTermInvestmentsTables" id="ShortTermInvestmentsTables">
<link:definition>1030 - Disclosure - Short-Term Investments (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PrepaidExpensesAndOtherCurrentAssetsTables" id="PrepaidExpensesAndOtherCurrentAssetsTables">
<link:definition>1031 - Disclosure - Prepaid Expenses and Other Current Assets (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PropertyAndEquipmentTables" id="PropertyAndEquipmentTables">
<link:definition>1032 - Disclosure - Property and Equipment (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/FairValueOfFinancialInstrumentsTables" id="FairValueOfFinancialInstrumentsTables">
<link:definition>1033 - Disclosure - Fair Value of Financial Instruments (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/AccruedExpensesTables" id="AccruedExpensesTables">
<link:definition>1034 - Disclosure - Accrued Expenses (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/LeasesTables" id="LeasesTables">
<link:definition>1035 - Disclosure - Leases (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
<link:definition>1036 - Disclosure - Income Taxes (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CommonStockTables" id="CommonStockTables">
<link:definition>1037 - Disclosure - Common Stock (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PreferredStockAndConvertiblePreferredStockTables" id="PreferredStockAndConvertiblePreferredStockTables">
<link:definition>1038 - Disclosure - Preferred Stock and Convertible Preferred Stock (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationTables" id="StockBasedCompensationTables">
<link:definition>1039 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/NetLossPerShareTables" id="NetLossPerShareTables">
<link:definition>1040 - Disclosure - Net Loss Per Share (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/OrganizationDescriptionOfBusinessAndLiquidityAdditionalInformationDetail" id="OrganizationDescriptionOfBusinessAndLiquidityAdditionalInformationDetail">
<link:definition>1041 - Disclosure - Organization, Description of Business and Liquidity - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetail" id="SummaryOfSignificantAccountingPoliciesScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetail">
<link:definition>1042 - Disclosure - Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" id="SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail">
<link:definition>1043 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ReverseMergerScheduleOfCompanyObtainedAssetsAndLiabilitiesDetail" id="ReverseMergerScheduleOfCompanyObtainedAssetsAndLiabilitiesDetail">
<link:definition>1044 - Disclosure - Reverse Merger - Schedule of Company Obtained Assets and Liabilities (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ReverseMergerAdditionalInformationDetail" id="ReverseMergerAdditionalInformationDetail">
<link:definition>1045 - Disclosure - Reverse Merger - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ShortTermInvestmentsScheduleOfShortTermInvestmentsDetail" id="ShortTermInvestmentsScheduleOfShortTermInvestmentsDetail">
<link:definition>1046 - Disclosure - Short-Term Investments - Schedule of Short-term Investments (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PrepaidExpensesAndOtherCurrentAssetsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail" id="PrepaidExpensesAndOtherCurrentAssetsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail">
<link:definition>1047 - Disclosure - Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentNetDetail" id="PropertyAndEquipmentScheduleOfPropertyAndEquipmentNetDetail">
<link:definition>1048 - Disclosure - Property and Equipment - Schedule of Property and Equipment, Net (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PropertyAndEquipmentAdditionalInformationDetail" id="PropertyAndEquipmentAdditionalInformationDetail">
<link:definition>1049 - Disclosure - Property and Equipment - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/FairValueOfFinancialInstrumentsScheduleOfFinancialAssetsMeasuredAtFairValueOnRecurringBasisDetail" id="FairValueOfFinancialInstrumentsScheduleOfFinancialAssetsMeasuredAtFairValueOnRecurringBasisDetail">
<link:definition>1050 - Disclosure - Fair Value of Financial Instruments - Schedule of Financial Assets Measured at Fair Value on Recurring Basis (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/FairValueOfFinancialInstrumentsAdditionalInformationDetail" id="FairValueOfFinancialInstrumentsAdditionalInformationDetail">
<link:definition>1051 - Disclosure - Fair Value of Financial Instruments - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/AccruedExpensesScheduleOfAccruedExpensesDetail" id="AccruedExpensesScheduleOfAccruedExpensesDetail">
<link:definition>1052 - Disclosure - Accrued Expenses - Schedule of Accrued Expenses (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/LeasesAdditionalInformationDetails" id="LeasesAdditionalInformationDetails">
<link:definition>1053 - Disclosure - Leases - Additional Information (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/LeasesSummaryOfTheComponentsOfLeaseCostsAndRentDetails" id="LeasesSummaryOfTheComponentsOfLeaseCostsAndRentDetails">
<link:definition>1054 - Disclosure - Leases - Summary of the Components of Lease Costs and Rent (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" id="LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails">
<link:definition>1055 - Disclosure - Leases - Schedule of Maturities of Operating Lease Liabilities (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/ConvertiblePreferredStockAdditionalInformationDetail" id="ConvertiblePreferredStockAdditionalInformationDetail">
<link:definition>1056 - Disclosure - Convertible Preferred Stock - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CommonStockAdditionalInformationDetails" id="CommonStockAdditionalInformationDetails">
<link:definition>1057 - Disclosure - Common Stock - Additional Information (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CommonStockScheduleOfCommonStockReservedForFutureIssuanceDetails" id="CommonStockScheduleOfCommonStockReservedForFutureIssuanceDetails">
<link:definition>1058 - Disclosure - Common Stock - Schedule of Common Stock Reserved For Future Issuance (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PreferredStockAndConvertiblePreferredStockAdditionalInformationDetails" id="PreferredStockAndConvertiblePreferredStockAdditionalInformationDetails">
<link:definition>1059 - Disclosure - Preferred Stock and Convertible Preferred Stock - Additional Information (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/PreferredStockAndConvertiblePreferredStockScheduleOfPreferredStockActivityDetails" id="PreferredStockAndConvertiblePreferredStockScheduleOfPreferredStockActivityDetails">
<link:definition>1060 - Disclosure - Preferred Stock and Convertible Preferred Stock - Schedule of Preferred Stock Activity (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationAdditionalInformationDetail" id="StockBasedCompensationAdditionalInformationDetail">
<link:definition>1061 - Disclosure - Stock-Based Compensation - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationScheduleOfStockOptionActivityDetail" id="StockBasedCompensationScheduleOfStockOptionActivityDetail">
<link:definition>1062 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationScheduleOfStockOptionActivityParentheticalDetail" id="StockBasedCompensationScheduleOfStockOptionActivityParentheticalDetail">
<link:definition>1063 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Parenthetical) (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationScheduleOfGrantDateFairValueOfStockOptionsIssuedPresentedOnAWeightedAverageBasisDetail" id="StockBasedCompensationScheduleOfGrantDateFairValueOfStockOptionsIssuedPresentedOnAWeightedAverageBasisDetail">
<link:definition>1064 - Disclosure - Stock-Based Compensation - Schedule of Grant-date Fair Value of Stock Options Issued, Presented on a Weighted Average Basis (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationScheduleOfActivityRelatingToRestrictedStockUnitsDetail" id="StockBasedCompensationScheduleOfActivityRelatingToRestrictedStockUnitsDetail">
<link:definition>1065 - Disclosure - Stock-Based Compensation - Schedule of Activity Relating to Restricted Stock Units (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail" id="StockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail">
<link:definition>1066 - Disclosure - Stock-Based Compensation - Schedule of Stock Based Compensation Expense (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/StockBasedCompensationScheduleOfAssumptionsUsedToDetermineTheFairValueOfWarrantDetail" id="StockBasedCompensationScheduleOfAssumptionsUsedToDetermineTheFairValueOfWarrantDetail">
<link:definition>1067 - Disclosure - Stock-Based Compensation - Schedule Of Assumptions Used To Determine The Fair Value Of Warrant (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/LicenseRevenueRelatedPartyAdditionalInformationDetails" id="LicenseRevenueRelatedPartyAdditionalInformationDetails">
<link:definition>1068 - Disclosure - License Revenue - Related Party - Additional Information (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/IncomeTaxesScheduleOfReconciliationOfUSFederalStatutoryRateToEffectiveTaxRateDetail" id="IncomeTaxesScheduleOfReconciliationOfUSFederalStatutoryRateToEffectiveTaxRateDetail">
<link:definition>1069 - Disclosure - Income Taxes - Schedule of Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/IncomeTaxesCompanysDeferredTaxAssetsDetail" id="IncomeTaxesCompanysDeferredTaxAssetsDetail">
<link:definition>1070 - Disclosure - Income Taxes - Company's Deferred Tax Assets (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/IncomeTaxesChangesInDeferredTaxAssetValuationAllowanceDetail" id="IncomeTaxesChangesInDeferredTaxAssetValuationAllowanceDetail">
<link:definition>1071 - Disclosure - Income Taxes - Changes in Deferred Tax Asset Valuation Allowance (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/IncomeTaxesAdditionalInformationDetail" id="IncomeTaxesAdditionalInformationDetail">
<link:definition>1072 - Disclosure - Income Taxes - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/NetLossPerShareScheduleOfBasicAndDilutedNetLossPerCommonShareDetail" id="NetLossPerShareScheduleOfBasicAndDilutedNetLossPerCommonShareDetail">
<link:definition>1073 - Disclosure - Net Loss Per Share - Schedule of Basic and diluted net loss per common share (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/NetLossPerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetail" id="NetLossPerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetail">
<link:definition>1074 - Disclosure - Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/CommitmentsAndContingenciesAdditionalInformationDetails" id="CommitmentsAndContingenciesAdditionalInformationDetails">
<link:definition>1075 - Disclosure - Commitments and Contingencies - Additional Information (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/RelatedPartyTransactionsAdditionalInformationDetail" id="RelatedPartyTransactionsAdditionalInformationDetail">
<link:definition>1076 - Disclosure - Related Party Transactions - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.magentatx.com/role/SubsequentEventsAdditionalInformationDetail" id="SubsequentEventsAdditionalInformationDetail">
<link:definition>1077 - Disclosure - Subsequent Events - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:linkbaseRef xlink:type="simple" xlink:href="dnth-20230930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="dnth-20230930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="dnth-20230930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="dnth-20230930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
</appinfo>
</annotation>
<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
<import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
<import namespace="http://fasb.org/us-gaap/2023" schemaLocation="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd" />
<import namespace="http://xbrl.sec.gov/country/2023" schemaLocation="https://xbrl.sec.gov/country/2023/country-2023.xsd" />
<import namespace="http://xbrl.sec.gov/currency/2023" schemaLocation="https://xbrl.sec.gov/currency/2023/currency-2023.xsd" />
<import namespace="http://xbrl.sec.gov/exch/2023" schemaLocation="https://xbrl.sec.gov/exch/2023/exch-2023.xsd" />
<import namespace="http://xbrl.sec.gov/naics/2023" schemaLocation="https://xbrl.sec.gov/naics/2023/naics-2023.xsd" />
<import namespace="http://xbrl.sec.gov/sic/2023" schemaLocation="https://xbrl.sec.gov/sic/2023/sic-2023.xsd" />
<import namespace="http://xbrl.sec.gov/stpr/2023" schemaLocation="https://xbrl.sec.gov/stpr/2023/stpr-2023.xsd" />
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
<import namespace="http://xbrl.sec.gov/dei/2023" schemaLocation="https://xbrl.sec.gov/dei/2023/dei-2023.xsd" />
<import namespace="http://fasb.org/us-types/2023" schemaLocation="https://xbrl.fasb.org/us-gaap/2023/elts/us-types-2023.xsd" />
<import namespace="http://fasb.org/srt-types/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-types-2023.xsd" />
<import namespace="http://fasb.org/srt/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd" />
<import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" />
<element name="SeriesSeedOneRedeemableConvertiblePreferredStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SeriesSeedOneRedeemableConvertiblePreferredStockMember" substitutionGroup="xbrli:item" />
<element name="SeriesSeedTwoRedeemableConvertiblePreferredStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SeriesSeedTwoRedeemableConvertiblePreferredStockMember" substitutionGroup="xbrli:item" />
<element name="SeriesARedeemableConvertiblePreferredStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SeriesARedeemableConvertiblePreferredStockMember" substitutionGroup="xbrli:item" />
<element name="ConvertiblePreferredStock" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_ConvertiblePreferredStock" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="OtherAssetsAndRestrictedCash" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_OtherAssetsAndRestrictedCash" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PreferredStockParValuePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PreferredStockParValuePerShare" substitutionGroup="xbrli:item" />
<element name="PreferredStockAuthorizedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PreferredStockAuthorizedShares" substitutionGroup="xbrli:item" />
<element name="IssuanceOfCommonStockAndPreFundedWarrantsInThePreClosingFinancingNetOfIssuanceCostsShare" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_IssuanceOfCommonStockAndPreFundedWarrantsInThePreClosingFinancingNetOfIssuanceCostsShare" substitutionGroup="xbrli:item" />
<element name="ChangeInParValueResultingFromRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ChangeInParValueResultingFromRecapitalization" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ReverseRecapitalizationTransactionCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ReverseRecapitalizationTransactionCosts" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="IssuanceOfCommonStockAndPreFundedWarrantsInThePreClosingFinancingNetOfIssuanceCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_IssuanceOfCommonStockAndPreFundedWarrantsInThePreClosingFinancingNetOfIssuanceCosts" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="StockIssuanceCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_StockIssuanceCost" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="UnbilledReceivableFromRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_UnbilledReceivableFromRelatedParty" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="AccountsPayableAccruedExpensesAndLeaseLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_AccountsPayableAccruedExpensesAndLeaseLiabilities" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ProceedsFromThePreClosingFinancing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ProceedsFromThePreClosingFinancing" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="CashAcquiredInConnectionWithTheReverseRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_CashAcquiredInConnectionWithTheReverseRecapitalization" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PaymentOfReverseRecapitalizationTransactionCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_PaymentOfReverseRecapitalizationTransactionCosts" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="IssuanceCostsInConnectionWithPreClosingFinancingIncludedInAccruedExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_IssuanceCostsInConnectionWithPreClosingFinancingIncludedInAccruedExpenses" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="TransactionCostsRelatedToReverseRecapitalizationIncludedInAccountsPayableAndAccruedExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_TransactionCostsRelatedToReverseRecapitalizationIncludedInAccountsPayableAndAccruedExpenses" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ConversionOfConvertiblePreferredStockIntoCommonStock" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ConversionOfConvertiblePreferredStockIntoCommonStock" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AdditionsToRightOfUseLeaseAssetsFromNewOperatingLeaseLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_AdditionsToRightOfUseLeaseAssetsFromNewOperatingLeaseLiabilities" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DisclosureInEntiretyOfRedeemableConvertiblePreferredStockTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_DisclosureInEntiretyOfRedeemableConvertiblePreferredStockTextBlock" substitutionGroup="xbrli:item" />
<element name="DisclosureOfLicenseRevenueToRelatedPartiesTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_DisclosureOfLicenseRevenueToRelatedPartiesTextBlock" substitutionGroup="xbrli:item" />
<element name="PatentCostsPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_PatentCostsPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="ScheduleOfCommonStockSharesReservedForFutureIssuanceTableTextblock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ScheduleOfCommonStockSharesReservedForFutureIssuanceTableTextblock" substitutionGroup="xbrli:item" />
<element name="DisclosureInTabularFormOfAssumptionsUsedToDetermineTheFairValueOfWarrantTableTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_DisclosureInTabularFormOfAssumptionsUsedToDetermineTheFairValueOfWarrantTableTextBlock" substitutionGroup="xbrli:item" />
<element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" substitutionGroup="xbrli:item" />
<element name="SplitAdjustedExchangeRatioOfReverseMerger" type="xbrli:pureItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_SplitAdjustedExchangeRatioOfReverseMerger" substitutionGroup="xbrli:item" />
<element name="SharesOfCommonStockIssuedInPreClosingFinancing" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_SharesOfCommonStockIssuedInPreClosingFinancing" substitutionGroup="xbrli:item" />
<element name="SharesPreFundedWarrantsToPurchase" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_SharesPreFundedWarrantsToPurchase" substitutionGroup="xbrli:item" />
<element name="PreFundedWarrantsExercisable" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PreFundedWarrantsExercisable" substitutionGroup="xbrli:item" />
<element name="PrefundedWarrantsPricePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PrefundedWarrantsPricePerShare" substitutionGroup="xbrli:item" />
<element name="CommonStockPricePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_CommonStockPricePerShare" substitutionGroup="xbrli:item" />
<element name="ProceedsFromPreClosingFinancing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_ProceedsFromPreClosingFinancing" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="AgreementAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_AgreementAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="AgreementDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_AgreementDomain" substitutionGroup="xbrli:item" />
<element name="SummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SummaryOfSignificantAccountingPoliciesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="RecentlyAdoptedAccountingPronouncementsAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_RecentlyAdoptedAccountingPronouncementsAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="RecentlyAdoptedAccountingPronouncementsDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_RecentlyAdoptedAccountingPronouncementsDomain" substitutionGroup="xbrli:item" />
<element name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SummaryOfSignificantAccountingPoliciesLineItems" substitutionGroup="xbrli:item" />
<element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedLiabilities" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="DianthusMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_DianthusMember" substitutionGroup="xbrli:item" />
<element name="PrepaidMaterialsSuppliesAndResearchAndDevelopmentServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PrepaidMaterialsSuppliesAndResearchAndDevelopmentServices" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PrepaidSubscriptionsSoftwareAndOtherAdministrativeServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PrepaidSubscriptionsSoftwareAndOtherAdministrativeServices" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DepreciationExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_DepreciationExpense" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel1" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel1" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="AccountsPayableAndAccruedExpenseAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_AccountsPayableAndAccruedExpenseAbstract" substitutionGroup="xbrli:item" />
<element name="AccruedLiabilitiesAndOtherLiabilitiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_AccruedLiabilitiesAndOtherLiabilitiesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="AccruedLiabilitiesAndOtherLiabilitiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_AccruedLiabilitiesAndOtherLiabilitiesLineItems" substitutionGroup="xbrli:item" />
<element name="AccruedTransactionCostsRelatedToReverseRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_AccruedTransactionCostsRelatedToReverseRecapitalization" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedProfessionalFeesCurrentAndOther" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_AccruedProfessionalFeesCurrentAndOther" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedExternalResearchAndDevelopmentExpensesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_AccruedExternalResearchAndDevelopmentExpensesCurrent" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedIssuanceCostsInConnectionWithPreClosingFinancing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_AccruedIssuanceCostsInConnectionWithPreClosingFinancing" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="LeasesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_LeasesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="LeasesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_LeasesLineItems" substitutionGroup="xbrli:item" />
<element name="DisclosureInEntiretyOfRedeemableConvertiblePreferredStockTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_DisclosureInEntiretyOfRedeemableConvertiblePreferredStockTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="DisclosureInEntiretyOfRedeemableConvertiblePreferredStockLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_DisclosureInEntiretyOfRedeemableConvertiblePreferredStockLineItems" substitutionGroup="xbrli:item" />
<element name="TemporaryEquitySharesIssuedIssuePricePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_TemporaryEquitySharesIssuedIssuePricePerShare" substitutionGroup="xbrli:item" />
<element name="TemporaryEquityStockIssuedDuringThePeriodSharesNewIssues" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_TemporaryEquityStockIssuedDuringThePeriodSharesNewIssues" substitutionGroup="xbrli:item" />
<element name="TemporaryEquityDividendPerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_TemporaryEquityDividendPerShare" substitutionGroup="xbrli:item" />
<element name="CommonStockMinimumIssuePricePerShareForConversionOfTemporaryEquityIntoPermanentEquity" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_CommonStockMinimumIssuePricePerShareForConversionOfTemporaryEquityIntoPermanentEquity" substitutionGroup="xbrli:item" />
<element name="MinimumGrossProceedsFromTheIssuanceOfCommonStockForConversionOfTemporaryEquityIntoPermanentEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_MinimumGrossProceedsFromTheIssuanceOfCommonStockForConversionOfTemporaryEquityIntoPermanentEquity" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="IssuanceOfCommonStockUponExerciseOfWarrants" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_IssuanceOfCommonStockUponExerciseOfWarrants" substitutionGroup="xbrli:item" />
<element name="ConversionOfConvertiblePreferredStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_ConversionOfConvertiblePreferredStock" substitutionGroup="xbrli:item" />
<element name="IssuanceOfCommonStockUponExerciseOfStockOptions" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_IssuanceOfCommonStockUponExerciseOfStockOptions" substitutionGroup="xbrli:item" />
<element name="EquityAwardsAvailableForGrantUnderStockAwards" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_EquityAwardsAvailableForGrantUnderStockAwards" substitutionGroup="xbrli:item" />
<element name="SharesAvailableForIssuanceUnderTheEmployeeStockPurchasePlan" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_SharesAvailableForIssuanceUnderTheEmployeeStockPurchasePlan" substitutionGroup="xbrli:item" />
<element name="SecondIssueMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SecondIssueMember" substitutionGroup="xbrli:item" />
<element name="FirstIssueMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_FirstIssueMember" substitutionGroup="xbrli:item" />
<element name="ThirdIssueMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ThirdIssueMember" substitutionGroup="xbrli:item" />
<element name="PreferredStockIssuedDate" type="xbrli:gYearMonthItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_PreferredStockIssuedDate" substitutionGroup="xbrli:item" />
<element name="SeriesSeedTwoConvertiblePreferredStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SeriesSeedTwoConvertiblePreferredStockMember" substitutionGroup="xbrli:item" />
<element name="SeriesSeed1ConvertiblePreferredStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SeriesSeed1ConvertiblePreferredStockMember" substitutionGroup="xbrli:item" />
<element name="SeriesAConvertiblePreferredStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SeriesAConvertiblePreferredStockMember" substitutionGroup="xbrli:item" />
<element name="CliffVestingMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_CliffVestingMember" substitutionGroup="xbrli:item" />
<element name="TrancheAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TrancheAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="TrancheDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TrancheDomain" substitutionGroup="xbrli:item" />
<element name="TrancheOneMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TrancheOneMember" substitutionGroup="xbrli:item" />
<element name="TrancheTwoMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TrancheTwoMember" substitutionGroup="xbrli:item" />
<element name="TwoThousandAndEighteenStockOptionAndIncentivePlanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TwoThousandAndEighteenStockOptionAndIncentivePlanMember" substitutionGroup="xbrli:item" />
<element name="TwoThousandAndNineteenEmployeeStockPurchasePlanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TwoThousandAndNineteenEmployeeStockPurchasePlanMember" substitutionGroup="xbrli:item" />
<element name="TwoThousandAndNineteenStockPlanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TwoThousandAndNineteenStockPlanMember" substitutionGroup="xbrli:item" />
<element name="SharebasedCompensationArrangementByShareBasedPaymentVestedCommencementPercentage" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_SharebasedCompensationArrangementByShareBasedPaymentVestedCommencementPercentage" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationByShareBasedAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVest" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_ShareBasedCompensationByShareBasedAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVest" substitutionGroup="xbrli:item" />
<element name="CommonStockPurchased" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_CommonStockPurchased" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationByShareBasedAwardWeightedAverageRemaningVestingPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationByShareBasedAwardWeightedAverageRemaningVestingPeriod" substitutionGroup="xbrli:item" />
<element name="GrantWeightedAverageGrantDateFairValuePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_GrantWeightedAverageGrantDateFairValuePerShare" substitutionGroup="xbrli:item" />
<element name="CommonStockExercisePrice" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_CommonStockExercisePrice" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardReservedAndAvailableForIssuanceIncrementPercentage" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationArrangementByShareBasedPaymentAwardReservedAndAvailableForIssuanceIncrementPercentage" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationByShareBasedCumulativeOptionsIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_ShareBasedCompensationByShareBasedCumulativeOptionsIssued" substitutionGroup="xbrli:item" />
<element name="PercentageOfTotalVotingPower" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PercentageOfTotalVotingPower" substitutionGroup="xbrli:item" />
<element name="CertainIncentiveStockOptionsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_CertainIncentiveStockOptionsMember" substitutionGroup="xbrli:item" />
<element name="StockOptionsAndStockAppreciationRightsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_StockOptionsAndStockAppreciationRightsMember" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateIntrinsicValueGranted" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateIntrinsicValueGranted" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateIntrinsicValueForfeited" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateIntrinsicValueForfeited" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAssumptionOfOptionsInConnectionWithTheReverseMergerWeightedAverageExercisePrice" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAssumptionOfOptionsInConnectionWithTheReverseMergerWeightedAverageExercisePrice" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAssumptionOfOptionsInConnectionWithReverseMerger" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationArrangementByShareBasedPaymentAssumptionOfOptionsInConnectionWithReverseMerger" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumptionOfOptionsInConnectionWithTheReverseMergerInPeriodIntrinsicValue1" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumptionOfOptionsInConnectionWithTheReverseMergerInPeriodIntrinsicValue1" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ReverseStockSplitEventAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ReverseStockSplitEventAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="ReverseStockSplitEventDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ReverseStockSplitEventDomain" substitutionGroup="xbrli:item" />
<element name="ReverseStockSplitEventMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ReverseStockSplitEventMember" substitutionGroup="xbrli:item" />
<element name="MilestoneMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_MilestoneMember" substitutionGroup="xbrli:item" />
<element name="UpfrontPaymentMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_UpfrontPaymentMember" substitutionGroup="xbrli:item" />
<element name="ZenasBiopharmaLimitedMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ZenasBiopharmaLimitedMember" substitutionGroup="xbrli:item" />
<element name="RevenueRecognitionMilestoneMethodPending" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_RevenueRecognitionMilestoneMethodPending" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="ReimbursementOfDevelopmentCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_ReimbursementOfDevelopmentCosts" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DeferredTaxAssetsOrganizationalCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_DeferredTaxAssetsOrganizationalCosts" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DeferredTaxAssetsCapitalizedResearchAndDevelopment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_DeferredTaxAssetsCapitalizedResearchAndDevelopment" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DeferredTaxAssetsOperatingLeaseLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_DeferredTaxAssetsOperatingLeaseLiability" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="IncomeTaxDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_IncomeTaxDisclosureTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_IncomeTaxDisclosureLineItems" substitutionGroup="xbrli:item" />
<element name="MaximumPercentageChangeInOwnershipInterestPermissible" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_MaximumPercentageChangeInOwnershipInterestPermissible" substitutionGroup="xbrli:item" />
<element name="PercentageOfTaxableIncomeEligibleToBeSetOffAgainstNetOperatingLoss" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_PercentageOfTaxableIncomeEligibleToBeSetOffAgainstNetOperatingLoss" substitutionGroup="xbrli:item" />
<element name="OperatingLossCarryforwardExpirationYearStart" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_OperatingLossCarryforwardExpirationYearStart" substitutionGroup="xbrli:item" />
<element name="PeriodOverWhichOwnershipChangeIsPermitted" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_PeriodOverWhichOwnershipChangeIsPermitted" substitutionGroup="xbrli:item" />
<element name="ExpirableMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ExpirableMember" substitutionGroup="xbrli:item" />
<element name="IndefinitelyMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_IndefinitelyMember" substitutionGroup="xbrli:item" />
<element name="Weightedaveragecommonsharesoutstanding" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_Weightedaveragecommonsharesoutstanding" substitutionGroup="xbrli:item" />
<element name="WarrantsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_WarrantsMember" substitutionGroup="xbrli:item" />
<element name="FirstSelectedAntibodyMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_FirstSelectedAntibodyMember" substitutionGroup="xbrli:item" />
<element name="SecondSelectedAntibodyMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SecondSelectedAntibodyMember" substitutionGroup="xbrli:item" />
<element name="FirstDevelopmentProgramMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_FirstDevelopmentProgramMember" substitutionGroup="xbrli:item" />
<element name="SecondDevelopmentProgramMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_SecondDevelopmentProgramMember" substitutionGroup="xbrli:item" />
<element name="CommercialMilestoneMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_CommercialMilestoneMember" substitutionGroup="xbrli:item" />
<element name="DevelopmentMilestoneMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_DevelopmentMilestoneMember" substitutionGroup="xbrli:item" />
<element name="FinancialAdvisorAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_FinancialAdvisorAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="FinancialAdvisorDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_FinancialAdvisorDomain" substitutionGroup="xbrli:item" />
<element name="PotentialMilestonePaymentsDue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PotentialMilestonePaymentsDue" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="PaymentOfAnnualLicenseFeesAndAnnualAntibodyProgramFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="dnth_PaymentOfAnnualLicenseFeesAndAnnualAntibodyProgramFees" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="AlloyTherapeuticsLlcMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_AlloyTherapeuticsLlcMember" substitutionGroup="xbrli:item" />
<element name="LigandPharmaceuticalsIncorporatedMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_LigandPharmaceuticalsIncorporatedMember" substitutionGroup="xbrli:item" />
<element name="IontasLimitedMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_IontasLimitedMember" substitutionGroup="xbrli:item" />
<element name="PercentageOfOutstandingSharesOwned" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="dnth_PercentageOfOutstandingSharesOwned" substitutionGroup="xbrli:item" />
<element name="FairmountFundsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_FairmountFundsMember" substitutionGroup="xbrli:item" />
<element name="TellusBioventuresLlcMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_TellusBioventuresLlcMember" substitutionGroup="xbrli:item" />
<element name="ViridianLlcMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_ViridianLlcMember" substitutionGroup="xbrli:item" />
<element name="LicenseRevenueMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="dnth_LicenseRevenueMember" substitutionGroup="xbrli:item" />
</schema>
