Cisplatin-induced vestibular hair cell lesion-less damage at high doses-中国Betway体育网页登陆

摘要 Cisplatin,awidelyusedanticancerdrug,damageshaircellsincochlearorganotypicculturesatlowdoses,butparadoxicallycauseslittledamageathighdosesresultinginaU-shapeddose-responsefunction.Todetermineifthecisplatindose-responsefunctionforvestibularhaircellsfollowsasimilarpattern,wetreatedvestibularorganotypiccultureswithdosesofcisplatinrangingfrom10to1000μM.Vestibularhaircelllesionsprogressivelyincreasedasthedoseofcisplatinincreasedwithmaximumdamageoccurringaround50–100μM,butthelesionsprogressivelydecreasedathigherdosesresultinginlittlehaircelllossat1000μM.TheU-shapeddoseresponsefunctionforcisplatin-treatedvestibularhaircellsincultureappearstoberegulatedbycoppertransporters,Ctr1,ATP7AandATP7B,thatdose-dependentlyregulatetheuptake,sequestrationandextrusionofcisplatin.

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Cisplatin-induced vestibular hair cell lesion-less damage at high doses

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