Figure 3 Transplanted PMSCs modulated macrophage differentiation toward an M2-like macrophage phenotype in ischemic tissue. (A) Representative images of flow cytometry. (B) Quantification of macrophage phenotypes. The number of M2-like macrophages increased dramatically in the PMSCs group at day 1, 3, and 7, respectively. Moreover, the M1/M2 ratio was reduced in the PMSCs group at day 1, 3, 7, and 14 after the procedure, respectively. # P<0.05 for PMSCs group versus PBS group. Data are represented as mean±SEM.