Figure 6. Analysis of MSC proliferation, migration, and apoptosis in vitro. (A) Cell proliferation was detected by the colorimetric CCK-8 assay. (B) Cell migration was detection by a Transwell assay in vitro. (C) Cell apoptosis was analyzed by flow cytometry using annexin V binding and PI staining. Data are presented as the mean ± SD. *P < 0.05 compared with the control group; #P < 0.05 compared with the HO-MSCs group.