Transforming growth factor-β2 induces morphological alteration of human corneal endothelial cells in vitro-中国期刊网

摘要 AIM:Toinvestigatethemorphologicalalteringeffectoftransforminggrowthfactor-β2(TGF-β2)onuntransfectedhumancornealendothelialcells(HCECs)invitro.METHODS:AfteruntransfectedHCECsweretreatedwithTGF-β2atdifferentconcentrations,themorphology,cytoskeletondistribution,andtypeIVcollagenexpressionofthecellswereexaminedwithinvertedcontrastlightmicroscopy,fluorescencemicroscopy,immunofluorescenceorWesternBlot.RESULTS:TGF-β2attheconcentrationof3-15μg/LhadobviouslyalterativeeffectsonHCECsmorphologyindoseandtime-dependentmanner,and9μg/Lwasthepeakconcentration.TGF-β2(9μg/L)alteredHCEcellmorphologyaftertreatmentfor36h,increasedthemeanopticaldensity(P<0.01)andthelengthofF-actin,reducedthemeanopticaldensity(P<0.01)ofthecollagentypeIVinextracellularmatrix(ECM)andinducedtherearrangementofF-actin,microtubuleincytoplasmandcollagentypeIVinECMaftertreatmentfor72h.·CONCLUTION:TGF-β2hasobviouslyalterativeeffectonthemorphologyofHCECsfrompolygonalphenotypetoenlargedspindle-shapedphenotype,indoseandtime-dependencemannerbyinducingmore,elongationandalignmentofF-actin,rearrangementofmicrotubuleandlargerspreadareaofcollagentypeIV.

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Transforming growth factor-β2 induces morphological alteration of human corneal endothelial cells in vitro

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Transforming growth factor-β2 induces morphological alteration of human corneal endothelial cells in vitro

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