Fig. 6

Phosphorylation of NF-κB in LPS-treated oral epithelial cells was examined using cell-based protein phosphorylation ELISA. OKF6/TERT-2 cells were cultured for 6 h (a), 12 h (b), 24 h (c) or 48 h (d), in the presence of LPS (1 μg/ml) and 1,25D3 (0, 10, 20, or 30 nM). 1,25D3 at 20 nM and 30 nM significantly suppressed LPS-induced NF-κB phosphorylation after 24 h and 48 h treatment. * p < 0.05, significantly different vs. control group. ^# p < 0.05, vs. LPS control