Therapeutic effects of AbMTA2 on A549-bearing mice in vivo. (A) Growth of non-small cell lung carcinoma tumor in A549-bearing mice following treatment with the indicated agents. (B) ERK and AKT expression levels in the experimental tumor on day 25. Magnification, ×400. (C) VEGF and EGF expression levels in the experimental tumor on day 25. Magnification, ×400. (D) Long-term (120-day observation) survival of A549-bearing mice following treatment with the indicated agents. The data are presented as the mean ± standard error of the mean of three independent experiments. **P<0.01 vs. control. Ab, antibody; MTA2, metastasis associated protein MTA2; ERK, extracellular signal-regulated kinase; AKT, RAC-α serine/threonine protein kinase; VEGF, vascular endothelial growth factor; EGF, pro-epidermal growth factor; si, small interfering.