Figure 4.

Inhibitory effects of As₂S₂ on the migration of MCF-7 and MDA-MB-231 cells determined using a wound healing assay. MCF-7 and MDA-MB-231 cells were treated with various concentrations (0, 8 and 16 µM) of As₂S₂ for 48 h, and then the wound areas were observed. (A) Representative images of wounded MCF-7 cells (magnification, ×100). (B) Quantification of relative migration of MCF-7 cells. (C) Representative images of wounded MDA-MB-341 cells (magnification, ×100). (D) Quantification of relative migration of MDA-MB-341 cells. Results are presented as the mean ± standard error of the mean (n≥3). *P<0.05, **P<0.01 vs. control (0 µM As₂S₂).