Synergistic effects of interferon-alpha in combination with chemoradiation on human pancreatic adenocarcinoma

Figure 3 Inhibition of proliferation Proliferation rate was determined after five-day treatment by using a non-radioactive MTT assay. Proliferation rate of untreated cells was set to ‘1’ and percentage of proliferation was calculated (A). B) shows the influence of IFN-α in combination treatments. Values of treatments without IFN-α were subtracted from values after combination treatment. Data is shown as mean±standard error from eight cell lines with at least three separate experiments. ^aP<0.05 was labeled with an asterisk; ^bP<0.01 with two asterisks and ^dP<0.001 with three asterisks.