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HMEC-1 cells were stimulated with EL4 (A), K12 (B) or MDA-MB-231 (C) supernatants for 24 h. Graphs show the scratch area measured every 4 h. Pictures show the most representative experiment out of three performed. Values are expressed as the arithmetic mean ± SD of three independent experiments. *p < 0.05, **p < 0.01 vs. untreated cells.
