In the Cho dataset, CBX2 was increased in diffuse gastric adenocarcinoma, with a fold change of 2.290 (P value = 6.01e−09)31, and in gastric mixed adenocarcinoma, with a fold change of 2.077 (P value = 3.75e−04)31. The gene discussed is CBX2; the disease is diffuse gastric adenocarcinoma.