FIG. 5.
IFN-α and WY-14643 pretreatment modulates ISG expression at baseline and in response to IFN-α. Pretreatment with IFN-α (2 U/mL) significantly upregulated the baseline expression of ISG15, USP18, and viperin, all of which were significantly reduced with the addition of WY-14643 (A). When cells were treated with high-dose IFN-α (20 U/mL), induction of all 3 ISGs was highest in mock-treated cells and significantly reduced following IFN-α pretreatment (B). The addition of WY-14643 to IFN-α pretreatment significantly increased induction of USP18 at 4 h, ISG15 and viperin at 8 h, and viperin at 24 h.
Significant difference between treatment and control, and *significant difference between IFN and IFN plus WY-14643 treatment. Graphs demonstrate an average of 3 experimental replicates (
P<0.05,
P<0.01).
