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Effects of EGF ‐ MSC s on fibroblast viability. Human skin fibroblasts were seeded at 5 × 104 cell/well in MEM‐α and grown for 2 days. Cell viability assay was conducted by adding MSC CM, vector‐MSC CM or EGF‐MSC CM; MTT assay was performed after 24, 48 and 72 h incubation. Cell viability of EGF‐MSC CM‐treated fibroblasts increased significantly. Data represent means ± SEM, n = 3. *P < 0.05 versus MSC CM‐treated fibroblasts.
