Fig. 4. CFE and differentiation capacities of cultured rPBMSCs. (A) Colonyforming ability of CFU-F isolated from mobilized rabbit peripheral blood. (B) One CFU-F of mobilized peripheral blood under a light microscope. (C) Colony-forming ability of CFU-F isolated from non-mobilized rabbit peripheral blood. (D) CFU-F of non-mobilized peripheral blood under a light microscope. (E) Comparison of CEF between mobilized peripheral blood and non-mobilized one. (F) Osteogenesis-committed differentiation of PBMSCs by alizarin red ×400. (G) Adipogenesis-committed differentiation of PBMSCs stained by oil red O ×400. (H) Chondrogenesis-committed differentiation of PBMSCs stained by alcian blue ×400. ^**p<0.01. CFE, colony forming efficiency; rPBMSCs, peripheral blood-derived mesenchymal stem cells from rabbits; CFU, colony forming units; PBMNCs, peripheral blood mononuclear cells.