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In vitro wound healing assay and cell-tracking system for cell migration. Scale bar: 50 μm. Recovery of the denuded space was completed after 36 h in normal fibroblasts. However, the wound area on the 50 ng/mL and 100 ng/mL High-mobility group box 1 (HMGB1)-treated and 10 ng/mL TGF-β-treated groups showed more rapid closure than the untreated control group.
