AimTo investigate the proliferative effect and the apoptosis of rat epididymal epithelial cells induced by podophyllotoxin and its underlying mechanisms.MethodsPrimary epididymal epithelial cells were cultured in vitro.CCK-8 assay was used to analyze proliferation of epididymal epithelial cells induced by podophyllotoxin on 24,48 and 72 h.The ultra structural changes of the epididymal epithelial cells were observed by transmission electron microscope.Annex-in V-FITC/PI staining was used to quantify the perc...