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TGF-β induced the expression of β-catenin, FN and α-SMA in human lung fibroblasts. (a) Representative western blot and (b–d) quantification of the expression of (b) β-catenin, (c) FN and (d) α-SMA in human lung fibroblasts with or without TGF-β challenge. Data are expressed as means ± SEM of three independent experiments. *P<0.05 vs. cells without TGF-β challenge.
