Targeting MTA2 suppresses the growth and aggressiveness of non-small cell lung carcinoma cells. (A) Affinity of AbMTA2 with MTA2 as determined by ELISA analysis. (B) Immunofluorescence and western blotting experiments analyzed the efficiency of AbMTA2 targeting for MTA. Magnification, ×200. (C) Expression of MTA2 target genes in A549 cells. (D) Migration of A549 cells following treatment with AbMTA2. Magnification, ×400. (E) Invasion of A549 cells following treatment with AbMTA2. Magnification, ×400. (F) Apoptotic resistance of A549 cells following treatment with AbMTA2. The data are presented as the mean ± standard error of the mean of three independent experiments. **P<0.01. MTA2, metastasis associated protein MTA2; siRNA, small interfering RNA; MMP-2, 72 kDa type IV collagenase; MMP-9, matrix metalloproteinase-9; CT-1, cardiotrophin-1; FIB, rRNA 2′-O-methyltransferase fibrillarin; Ab, antibody.