Fig. 4

Vimentin overexpression promotes HNSCC cell migration and invasion. a, b Vimentin mRNA and protein expression after transfection. c, d The effects of vimentin overexpression on HNSCC cell invasion and migration ability. The wound area of scratch assays images were captured at ×40 magnification. The images of transwell assays were captured at ×200 magnification. *P < 0.05, **P < 0.01, ***P < 0.001