Figure 3.

Overexpression of microRNA-128 can decrease Bmi-1 expressing following exposure to X-ray radiation in U87 glioma cells. Bmi-1 expression of U87 cells after treatment with negative control or miR-128 as above, through (A) Western blot & (B) RT-PCR. Following 72 h of exposure to X-ray radiation at 2 and 8 Gy doses, the expression of Bmi-1 of U87 glioma cells were detected by (C) Western blot & (D) RT-PCR. The quantitative results are presented as the mean ± standard deviation of three independent experiments. *P<0.05 vs. control. **P<0.05 comparison among groups.