Fig. 4

Overexpression of STAT1-CC improves IFN-induced growth inhibition in lung cancer cells. a, b SPC-A-1 cell growth inhibition rate was determined in each group treated with various doses of IFN-γ or IFN-β for 6 days (*P < 0.05, **P < 0.01). c, d H1299 cell growth was assayed in each group treated with IFN-γ 1000 U/ml or IFN-β 1000 U/ml for 2 days. e, f SPC-A-1 cell growth curve was plotted at various time points for each group treated with IFN-γ 1000 or 10,000 U/ml. g, h SPC-A-1 cell growth curves were plotted at various time points for each group treated with IFN-β 1000 or 10,000 U/ml