Fig. 4

Transplanted DPSCs promoted ISC-like cell proliferation. a Increases in Bmi1-, Musashi1-, Sox9- and PCNA-positive cells were detected by immunohistochemical analysis. Scale bars = 50 μm. b The negative control result was staining without primary antibody. Scale bars = 50 μm. c Statistical comparison of the Bmi1-, Musashi1-, Sox9- and PCNA-positive cells in different groups. Data are shown as the means ± SD (n = 5; ^△△p < 0.01, ^△△△p < 0.001; *p < 0.05, **p < 0.01, ***p < 0.001 vs the UC group; ^##p < 0.01, ^###p < 0.001)