Figure 5. Inhibition of Cx43 and ERK signaling decreases osteogenic marker gene expression in vivo.
(A) Tenotomy mice were treated by local injection of Cx43 shRNA or intraperitoneal injection of U0126. HO tissues were decalcified, and expression of Cx43, p-ERK, ERK, Runx2 and BSP was detected by immunohistochemistry at week 8. (B) Cx43, p-ERK, Runx2 and BSP expression in the HO tissues was quantified.