Figure 3. Negative effect on Wnt pathway after Peg-IFN treatment is via upregulation of RanBP3.
A. TOPFlash luciferase assay showing a decrease in reporter activity after overexpression of RanBP3 in HepG2 cells.
B. Topflash luciferase reporter assay shows a significant decrease in β-catenin activity after Peg-IFN treatment in control siRNA transfected Hep3B cells (p<0.01). Transfection of RanBPB3 siRNA that leads to a dramatic suppression of RanBP3 protein expression after 48 hours (upper panel) led to a significant abrogation of Peg-IFN-induced reduction of TOPFlash reporter activity (p<0.05).
