Figure 4.
BMI‐1 overexpression upregulated survivin expression. Protein samples were isolated from HT‐mock, HT‐BMI‐1, RL‐mock and RL‐BMI‐1 cells. Proteins involved in drug resistance were detected by western blotting. The expression of survivin in HT‐BMI‐1 and RL‐BMI‐1 cells was significantly increased compared to that in mock‐transduced cells.