Figure 4: The effect of different cytokines on the proliferation of DBMSCs (a) and the effect of different chemotactic factors (HGF, SDF, MCP-1, and PDGF) on the migration of DBMSCs (b). The proliferation of DBMSCs was significantly increased in the presence of HGF, IL-6, IL-4, Rantes, and IL-17A (). The chemotactic factors significantly () stimulated the migration of DBMSCs in transwell migration plates. DBMSCs at passage three from five individual placentae were analyzed. Bars represent standard errors.