The expression of all the 3 genes was significantly higher in the following scenarios (compared with paired normal gastric tissues): serosal invasion-positive (T3/T4) (CIAPIN1, 1.888 ± 0.547; MTA2, 2.034 ± 0.375; UXT, 1.784 ± 0.656, ****P < 0.0001), positive lymph node metastasis (N1) (CIAPIN1, 1.875 ± 0.592; MTA2, 1.871 ± 0.462; UXT, 1.656 ± 0.552, ****P < 0.0001), and positive distant metastasis (M1) (CIAPIN1: 2.292 ± 0.452; MTA2, 2.016 ± 0.462; UXT, 2.010 ± 0.482, ****P < 0.0001). This evidence concerns the gene MTA2 and metastatic malignant neoplasm in the lymph nodes.