It has been proved that epithelial-mesenchymal transition(EMT) is correlated with tumor invasion and metastasis.Transforming growth factor-beta(TGF-β) has been identified as a main inducer of EMT.The aim of this study is to investigate the effects of TGF-β1 on EMT in human prostate cancer PC3 cells.We found that TGF-β1 treatment could induce morphological alteration of PC3 cells from epithelial morphology to mesenchymal morphology.Wound healing assay and Transwell assay showed that TGF-β1 significantly incr...