FIG. 3.

Effect of He-Ne laser irradiation on the migration of cultured human epidermal stem cells (ESCs). The cells were seeded in six-well plates at a density of 5×10⁶ cells/mL, and cell migration assays were performed using a scratch wound assay method as described in the Materials and Methods section. The scratch wounds and the migration cells in the scratch were photographed at the indicated time points after scratching. (A) Represent photographs of the scratch wounds and migration cells in the scratch (original magnification×400). (B) The quantitative data are presented as means±SEM of three independent experiments. Control versus treatment groups, *p<0.05.