FIG. 4.
Effect of BMP inhibition on AA-induced osteoblast differentiation markers in MC3T3-E1 pre-osteoblast cells. (A) Clone 4 MC3T3-E1 cells were growth in the presence (gray bars) or absence of AA (open bars) and treated with combined BMP2/4 and BMP7 blocking antibodies (5 ηg/ml each) for 5 days and assayed for ALP activity. Total RNA was isolated from replicate samples and assayed for (B) OCN, (C) BSP, and (D) RUNX2 mRNA using Q-RT/PCR.