Fig. 4.
Immunofluorescence staining of hMSC cell culture with FITC labeled (green) osteocalcin (OCN) antibody and DAPI (blue), and Alexa 488 (green) labeled alkaline phosphatase (ALP) antibody and DAPI (blue) after incubation with control osteogenic medium, GO, CaP, and GO-CaP for two weeks. Scale bars represent 20 µm.