Fig. 5. Apoptotic induced by siRNA transfection on U-87 MG cells.
(a) Apoptotic index of U-87 MG cells transfected with control and targeted siRNA and stained by annexin V-FITC and EtD-III followed by flow cytometry analysis. (b) The apoptosis rate of U-87 MG cells treated with scramble and targeted siRNA is shown in the bar graph. Asterisk indicates significant level in Student's t-test: **P < 0.01, n.s.: non-significant.