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In vitro development of the regenerating lens☆
[摘要] ThedevelopmentinvitrooftheregeneratinglensatsuccessivetimeintervalsafterlensremovalwasstudiedintheadultnewtTriturusviridescens.Regenerateswereculturedusinganagarsubstrateinwhichasyntheticmediumwithserumsupplementwasincorporated.Explantswereincubatedat25°C,5%CO2,and85%relativelyhumidity,andculturedfor5,10,and15days.RegenerationstagesItoII,inwhichnuclearactivationanddepigmentationarestartingtooccur,continuetoextrudetheirpigmentgranulesandgiverisetoapopulationofcompletelydepigmentedcells.Afterdepigmentationhasoccurredinvivoinsomecellsofthedorsaliris(stagesIIItoIV),adepigmentedcellpopulationisproducedcapableoflimitedproliferationbutincapableoflensfiberdifferentiation.Whencellelongationhasoccurredinthedepigmentedcellsoftheinnerwalloftheregeneratinglens(stagesVandonward),explantsarecapableofdevelopinglensfibersinvitro.TheseresultsarediscussedandrelatedtotheavailableinformationonRNAandproteinsynthesisinthelensregeneratingsystem.
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[效力级别]  [学科分类] 生物科学(综合)
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