HGF inhibits BMP-2–induced ALP activity in vitro. ALP activity of C2C12 cells (A) and hMSCs (B-C). The hMSCs in (C) had been treated with cytokines for six days. The concentrations of cytokines were 300 ng/mL BMP-2 and 100 ng/mL HGF. Data are presented as means + SEM.