FIGURE 3.
GA promotes osteogenic differentiation of hMSCs partly via the Wnt/β-catenin signaling pathway. (A) Relative protein expression levels of components of different signaling pathways were assessed by western blotting. hBMSCs were incubated with different concentrations of GA during osteogenic differentiation on day 3. The protein expression levels were normalized relative to that of GAPDH protein. (B) the quantitation of ratio (a beta-catenin/t beta-catenin) to reflect the activation of Wnt/beta-catenin signaling pathway. All tests were performed in triplicate. Data are expressed as means ± SD. **p < 0.01 compared to the control group.