Fig. 1

a SDF-1α SDS‒PAGE electrophoretic diagram. b WB analysis of SDF-1α at different concentrations. c AF488-labelled CXCR4 immunofluorescence identification of rBMSCs; scale bars represent 40 μm. d Transwell cell migration assay. The cells were stained with crystal violet; the scale bars represent 500 μm. e The corresponding quantitative evaluation of cell migration in different concentrations of SDF-1α, P < 0.05; error bars represent standard deviation for n = 3