Effect of JAB and CIS3 on IFN-γ inducible genes. The cells (A; M1-derived cells, B; NIH3T3-derived cells) were stimulated with 1,000 IU/mL IFN-γ for the indicated periods (h) and analyzed with Northern hybridization using IRF1, FcγRI, and control G3PDH probes. FcγRI was not detected in parental NIH3T3 cells (not shown).