The cell migration ability of bone marrow mesenchymal stem cells (BM-MSCs) was higher than that of umbilical cord mesenchymal stem cells (UC-MSCs), which might be related to Vimentin. (A) Zero, six, 12, 24, 36, and 48 hours after scratching in BM-MSCs and UC-MSCs, respectively. Downward lines were drawn to show the healing rate of each scratching even. (B) Transwell results of wild-type BM-MSCs and UC-MSCs. (C, D) The effect of Vimentin expression on the migration of BM-MSCs and UC-MSCs. The expression of Vimentin was reduced in BM-MSCs (C) and elevated in UC-MSCs (D). As the histograms showed, the migration effect of BM-MSCs is higher than that of UC-MSCs and positively correlated with the expression of Vimentin. ***P <0.01. Bars show the standard error of the mean. Magnifications: 4× (A) and 40× (B-D).