Figure 2. Effect of IL-27 (50 ng/mL) and sorafenib (2 μM) alone or their combination on HTB-9 cell apoptosis assessed by flow cytometry (A, B). Cells cultured with blank medium acted as control. Data are reported as the mean±SE of 4 independent experiments. *P<0.05; **P<0.01; ***P<0.001 compared to control unless indicated otherwise (t-test). IL-27: interleukin 27.
