Fig. 1

a Adipogenesis fat differentiation (oil red-O), b Osteogenesis bone differentiation (alizarin red S), c Chondrogenic cartilage differentiation (toluidine blue sodium borate stain)
a Adipogenesis fat differentiation (oil red-O), b Osteogenesis bone differentiation (alizarin red S), c Chondrogenic cartilage differentiation (toluidine blue sodium borate stain)