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(A) Enlarged 2-DE images of spot 0306 (left panel) and spot 2203 (right panel), which were down-regulated in MWCNT-treated A549 cells; (B) Western blot results for 14-3-3ε (left panel)/HSP27 (right panel) expression in A549 cells treated with 0.3, 3 and 30 µg/ml for 2 h/24 h; (C) Densitometry analysis of (B). GAPDH was used as a loading control. * p<0.05.
