Supplementary Fig. 4 from MEK Inhibition Sensitizes Pancreatic Cancer to STING Agonism by Tumor Cell–intrinsic Amplification of Type I IFN Signaling

Supplementary Fig. 4 Immunoblot analysis demonstrating the effect of ± 100 U/ml exogenous IFN on CFPAC-1 and SUIT2 parental cells compared to their respective IFNAR-deficient isogenic cell lines. (B) Immunoblot analysis of CFPAC-1 parental and IFNAR1-KO cells exposed to ± 1 µM diABZI ± 100 nM trametinib for 24 h (C)Immunoblot analysis of the effects of ± 100 U/ml exogenous IFN ± 1 µM diABZI for 24 h.