Fig. 3

Differentiation of CP-MSCs. a Blank control; scale bar = 100 μm. CP-MSCs at passage 3 were induced to adipogenesis (b), chondrogenesis (c), and osteogenesis (d); scale bars = 50 μm. CP-MSCs possessed the potential for differentiation to adipocytes containing scattered lipid droplets which were stained red with Oil Red O (b), to chondrocytes which were stained blue with Alcian Blue (c), and to osteocytes with formation of calcium nodules which were stained red with Alizarin Red (d)