The c-FLIP siRNA transfected cells were more sensitive to these agents than those transfected with the Con siRNA (P = 0.005, P = 0.015, P = 0.012 in Jurkat cells and P = 0.002, P = 0.049, P = 0.012 in H9 cells, respectively, Figure 2C), with corresponding increase of tumor cell apoptosis in c-FLIP siRNA group (P = 0.021, P = 0.014, P = 0.008 in Jurkat cells and P = 0.012, P = 0.005, P = 0.020 in H9 cells, respectively, Figure 2D). This evidence concerns the gene CFLAR and neoplasm.