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Immunocytochemical determination of ERK1/2 protein expression at 48 h after transfection. (A) Blank control, (B) empty vector group, and (C) interference group). Magnification, ×100. Lane 1, 2 and 3 represent blank control, empty vector and interference groups, respectively, in the SW626 cell line. ERK1/2, extracellular-signal-regulated kinase 1/2.
