Research on the Mechanism of Asiaticoside Inhibiting Osteoclast Differentiation and Promoting the Recovery of Steroid-Induced Osteonecrosis of the Femoral Head (SIONFH)

Our study aims to assess whether asiaticoside promotes the recovery of SINOFH by inhibiting bone marrow stem cells (BMSCs) differentiation into osteoclasts (OC). BMMs were induced to form OC system by dexamethasone in vitro and ELISA detected the expression of OC-related genes formation by asiaticoside. BMSCs were cultured followed by analysis of BMSCs morphology under microscope, gene expression by qRT-PCR. TRACP and c-Src level by western blot, RANKL, OPG and TRACP5b level by ELISA. Asiaticoside inhibited the expression of OC formation in SIONFH. The expression of OC-related genes increased with the induction days. With the increasing of induction days, asiaticoside level in culture fluid was decreased. While after asiaticoside interference, OCrelated genes and proteins levels were significantly down-regulated. Aasiaticoside can significantly increase the RANKL signaling protein expression. In conclusion, asiaticoside promotes the recovery of SINOFH by inhibiting BMSCs differentiation into OC.