The role of TRPC6 in HGF-induced cell proliferation of human prostate cancer DU145 and PC3 cells.
Hepatocyte growth factor (HGF) is a glycoprotein that induces prostate cancer cell proliferation, migration and invasion. The activation of transient receptor potential canonical 6 (TRPC6) channels is considered important in promoting prostate cancer cell proliferation. In this study, we assessed the role of endogenous TRPC6 channels in the HGF-induced cell proliferation of prostate cancer. Reverse transcription-PCR and Western blotting were used to investigate TRPC6 expression. Electrophysiological techniques (whole-cell patch clamp configuration) and Ca(2+) imaging analysis were used to investigate the channel activity in cells. The effects of TRPC6 channels on cell cycle progression, cell apoptosis and cell growth were also examined. TRPC6 and c-MET were expressed in DU145 and PC3 cells. In addition, functional TRPC6 channels were present in DU145 and PC3 cells, and TRPC6 knockdown suppressed TRPC-like currents evoked by oleoyl-2-acetyl-sn-glycerol (OAG). Inhibition of TRPC6 channels in DU145 and PC3 cells abolished OAG- and HGF-induced Ca(2+) entry. Furthermore, inhibition of TRPC6 channels arrested DU145 and PC3 cells at the G(2)/M phase and suppressed HGF-induced cell proliferation. Collectively, our results indicate that TRPC6 has an important role in HGF-induced DU145 and PC3 cell proliferation.
Wang
Yong
Y
Department of Urology, Fourth Affiliated Hospital, China Medical University, Shenyang 110032, China.
Yue
Dan
D
Li
Kai
K
Liu
Yi-Li
YL
Ren
Chang-Shan
CS
Wang
Ping
P
D017209:Apoptosis / Q000187:drug effects; D002118:Calcium / Q000378:metabolism; D002453:Cell Cycle / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects*; D017228:Hepatocyte Growth Factor / Q000502:physiology; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000235:genetics; D050052:TRPC Cation Channels / Q000502:physiology*; D000074287:TRPC6 Cation Channel; D015854:Up-Regulation
D050052:TRPC Cation Channels; D000074287:TRPC6 Cation Channel; C117032:TRPC6 protein, human; D017228:Hepatocyte Growth Factor; D002118:Calcium