Towards a multiphysics modelling framework for thermosensitive liposomal drug delivery to solid tumour combined with focused ultrasound hyperthermia-中国期刊网

摘要 Systemictoxicityandinsufficientdrugaccumulationatthetumours让earemainbarriersinchemotherapy.Thermosens让iveliposomes(TSL)combinedwithhighintensityfocusedultrasound(HIFU)hasemergedasapotentialsolutiontoovercomethesebarriersthroughtargeteddrugdeliveryandlocalisedrelease.Owingtothemultiplephysicalandbiochemicalprocessesinvolvedinthiscombinationtherapy,mathematicalmodellingbecomesanindispensabletoolfordetailedanalysisofthetransportprocessesandpredictionoftumourdruguptake.Tothisend,amultiphysicsmodelhasbeendevelopedtosimulatethetransportofchemotherapydrugsdeliveredthroughacombinedHIFU-TSLsystem.Allkeydeliveryprocessesareconsideredinthemodel;theseineludeinterstitialfluidflow,HIFUacoustics,bioheattransfer;drugreleaseandtransport,aswellastumourdruguptake.Thecapabilityofthemodelisdemonstratedthroughitsapplicationtoa2-Dprostatetumourmodelreconstructedfrommagneticresonanceimages.Ourresultsnotonlydemonstratethefeasibilityofthemodeltosimulatethiscombinationtherapy,butalsoconfirmtheadvantageofHIFU-TSLdrugdeliverysystemwithenhancementofdrugaccumulationintumourregionsandreductionofdrugavailabilityinnormaltissue.ThismultiphysicsmodellingframeworkcanserveasausefultooltoassistinthedesignofHIFU-TSLdrugdeliverysystemsandtreatmentregimenforimprovedanticancerefficacy.

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Towards a multiphysics modelling framework for thermosensitive liposomal drug delivery to solid tumour combined with focused ultrasound hyperthermia

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Towards a multiphysics modelling framework for thermosensitive liposomal drug delivery to solid tumour combined with focused ultrasound hyperthermia

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