Fig. 1

Effect of different concentrations of FGF-2 on hASCs proliferation. Cells were incubated with FGF-2 in serum-free DMEM for 48 h. Growth was examined with a Cell Counting Kit-8 by reading absorbance at 450 nm. a FGF-2 stimulated hASC proliferation (n = 8) in a concentration-dependent manner. *p < 0.05 and **p < 0.01 vs controls. b Phase-contrast micrographs show an increase in hASCs after treatment with FGF-2. c Effect of NVP-BGJ398 (FGFR inhibitor) on FGF-2-mediated proliferation of hASCs (n = 5). *p < 0.01 compared with no inhibitor