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TGF-β1 HepG2-treated cell migration on Ln-5 is α3-dependent. The α3-integrin expressed by TGF-β1 HepG2-treated cells (open bars) is functionally active because cell migration on Ln-5 in the presence of MMP-2 is blocked by neutralizing antibodies against α3 but not against α6-integrin (untreated cells shown by filled bars).
