Fig. 4.
miR-297a-5p, miR-297b-5p, and miR-297c-5p accumulate in Tet DKO BMMSCs to block Runx2 signaling. a, b The expression of Runx2 in control and Tet DKO BMMSCs was analyzed by western blotting and qPCR. c The levels of miR-297a-5p, miR-297b-5p, or miR-297c-5p in control and Tet DKO BMMSCs assessed by qPCR. d Mineralized nodule formation under osteogenic inductive conditions of Tet DKO BMMSC after miR-297a-5p, miR-297b-5p, or miR-297c-5p inhibitor treatment. e, f The expression levels of osteogenic markers Runx2, ALP, and OCN in Tet DKO BMMSCs after miR-297a-5p, miR-297b-5p, or miR-297c-5p inhibitor treatment, as assessed by qPCR (e) and western blotting (f). g–i Mineralized nodule formation and the expression of Runx2, ALP, and OCN in BMMSCs after miR-297a-5p, miR-297b-5p, and miR-297c-5p mimic treatment as assessed by alizarin red staining (g), qPCR (h) and western blotting (i). *p < 0.05, **p < 0.01, ***p < 0.001 (mean ± SD). Results are from three independent experiments. p values were calculated using two-tailed Student's t test (b, c) and one-way ANOVA (d, e, g, h)