Fig. 1

Identification of BMSCs. a Left part, the flow diagram of experimental. Wound mice were randomly divided into 3 groups that were treated with PBS, BMSCs, and AA2G-treated BMSCs, respectively. Right part, schematic diagram of tissue repair. Wound healing involves a variety of cellular interactions. b Morphology of BMSCs at passage 3. Bar = 120 µm. c FCM analysis of the expression of BMSCs surface markers, which were positive for CD44, CD90, and CD29 and negative for CD31 and CD34. d Oil-red O staining of adipogenesis differentiation of BMSCs. Bar = 120 µm. e Alizarin red staining of osteogenic differentiation of BMSCs. Bar = 120 µm. f Alcian blue staining of chondrogenic differentiation of BMSCs. Bar = 120 µm