Gene expression of BMP12 in equine BMDMSCs (A, B) and SDFTNs (C, D). A—On cell culture day 3, gene expression was significantly greater in BMDMSC-BMP12 cells than in untreated control cells, BMDSMC-BMP2 cells (P < 0.01), or BMDMSC-GFP cells (P < 0.05). B—On cell culture day 6, gene expression was significantly (P < 0.001) greater in BMDMSC-BMP12 cells than in other groups. C—On cell culture day 3, gene expression was significantly (P < 0.001) greater in SDFTN-BMP12 cells, compared with that of other groups. D—On cell culture day 6, gene expression was significantly (P < 0.01) greater in SDFTN-BMP12 cells, compared that of with other groups.