Fig. 1. Endogenous expressions of wild TGFβ receptors in MPCs. (A). C3H10T1/2 were cultured for 24 hours. Endogenous expression of wild TGFβ was detected by qPCR. Data were means ± SD of three independent experiments. (B). C2C12 were cultured for 24 hours. Endogenous expression of wild TGFβ was detected by qPCR. Data were means ± SD of three independent experiments. (C). BMSCs were cultured for 24 hours. Endogenous expression of wild TGFβ was detected by qPCR. Data were means ± SD of three independent experiments.