Fig. 5.

Non-thermal plasma suppresses the migration and invasion abilities of squamous cell carcinoma cells. (A) Wound-healing assay at 0 and 24 h after treatment. (B, C) Transwell migration and invasion assays at 24 h after treatment. Five representative fields of cells in each group were captured and analyzed. Scale bar = 500 µm. (D) Colony formation assay. Four representative fields of cells in each group were captured and analyzed. Scale bar = 500 µm. Error bars represent the standard error of the mean. *p<0.05, **p<0.01, ***p<0.001; ns, not significant.