Figure 6. LIPUS stimulation increased BMP-2 expression mediated by Runx2.

(A). hPDL cells were incubated with HGF for 24 h, and BMP-2 mRNA was examined by qRT-PCR. (B and C) hPDL cells were incubated with HGF for 48 h, and BMP-2 protein amounts were detected by Western blotting. The data shows that HGF significantly increased BMP-2 expression. (D). Cells were transfected with Runx2 siRNA for 24 h followed by stimulation with LIPUS for 5 days, and BMP-2 mRNA expression was examined by qRT-PCR. (E and F) hPDL cells were transfected with Runx2 siRNA for 5 days, and BMP-2 protein expression was examined by Western blot. Transfection of cells with Runx2 siRNA reduced LIPUS-increased BMP-2 expression. *P<0.05 (**P<0.01) as compared with the control group.