c-Met inhibition enhances chemosensitivity of human ovarian cancer cells.

In clinical practice, human ovarian cancer shows considerable resistance to chemotherapy. This study aimed to investigate the role of c-Met in the chemoresistance of ovarian cancer. Ovarian cancer cell line SKOV3 and OVCAR-3 were pretreated with c-Met inhibitor INCB28060, and then treated with paclitaxel. Cell survival, cell cycle and apoptosis were analyzed by MTT assay, flow cytometry analysis and TUNEL assay, respectively. The activation of c-Met signalling was detected by western blot analysis. INCB28060 inhibited the survival of SKOV3 and OVCAR-3 cells and enhanced the chemosensitivity of SKOV3 and OVCAR-3 cells to paclitaxel. INCB28060 inhibited c-Met signalling, caused mitochondrial membrane depolarization and DNA repair, and induced the apoptosis of SKOV3 and OVCAR-3 cells. c-Met plays an important role in mediating the chemoresistance of ovarian cancer. The combination of c-Met inhibitor and chemotherapy is a promising strategy to human ovarian cancer.