[Ca2+]i homeostasis and caspase-3 gene expression in verapamil-induced retinal pigment epithelium cells apoptosis in vitro / 国际眼科杂志(Guoji Yanke Zazhi)

(Ver)-induced human retinal pigment epithelium (RPE) cells apoptosis.hours to induce RPE cells apoptosis.The expression of apoptotic effector gene caspase-3 was assessed by reverse transcription polymerase chain reaction (RT-PCR).Single cell was measured using fluorescence indicator Fura-3/AM with MetaFluo4.5/coolsnapfx/IX70 intracellular Ca2+ fluorescence imaging system.RPE cells and it significantly increased after co-cultured with Ver.The fluorescence in resting RPE cells was strong and distributed throughout the cells.The nucleus appeared more fluorescent than the cytoplasm.Calcium fluorescence of RPE cells attenuated after co-cultured with Ver.[Ca2+]i homeostasis might play pivotal roles in Ver-induced RPE cells apoptosis.