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The effect of SP-A on lung cancer subcutaneous xenografts in vivo. A: SP-A expression of human SP-A stable transfectants was confirmed by Western blot analysis. H441 cells were used as a positive control. ACTB, β-actin. Tumor growth (B) and weight (C) of xenografts produced by PC14PE6 (left panels; n = 6 per group) and A549 (right panels; n = 8 per group) cells transduced with SP-A or vector. Data are presented as means ± SEM (horizontal lines in C). ∗P < 0.05.
