Figure 10. PI3K activity suppresses LPS-induced IFNβ gene expression and GSK3β is an integral component of such suppression.
Cells were incubated or not with PGE2 following pre-treatment with the PI3K inhibitor wortmannin (1 μM) (A) or GSK3β inhibitors LiCl or SB216763 (B) for 30min, and then stimulated with LPS (100 ng/mL). Total RNA was harvested 2 h later. Real-time quantitative RT-PCR was used to analyze IFNβ and β-actin as described in Materials and Methods. *, p < 0.05 vs. untreated group; †, p < 0.05 vs. LPS alone, ANOVA/Student-Newman-Keuls.