The positivity rate of VEGF-C, VEGFR-3, and CNTN-1 in all cases with gastric cancer was 56.19%, 64.76%, and 58.09%, respectively, which was significantly higher than the positive rate of VEGF-C (17.14%), VEGFR-3 (15.23%), and CNTN-1 (21.90%) in control groups (Table 1). This evidence concerns the gene CNTN1 and gastric cancer.