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(A) and (B) Representative micrographs show the migration activity of cells after scratching in SK-Mel-19 (A) or A375 (B). At different time points, the wound healing activity was observed. (C) and (D) Cells were plated onto transwell filters, and the migration activity was detected by transwell assays. Representative images of stained filters are shown in SK-Mel-19 after 48 hours (C) or A375 after 24 hours (D).
