Fig. 4.

The effect of RACK1 on NPC cell migration and invasion. a, b western blots showed the successfully overexpression or knockdown of RACK1 in NPC cells. The migration and invasion of NPC cells were tested by Transwell (c) and Boyden assays (d) respectively after NPC cells were transfected with RACK1 or control plasmid. In addition, after NPC cells were treated by si-RACK1 or si-control, Transwell (e) and Boyden assays (f) were also performed to detect the migration and invasion ability of NPC cells. Original magnification, ×200; scale bar 50 μm. Student’s t-test, mean ± sem, N = 3. *P < 0.05, **P < 0.01, ***P < 0.001