In colon adenocarcinoma (COAD), rectum adenocarcinoma (READ), stomach adenocarcinoma (STAD), and esophageal carcinoma (ESCA), KDM1A expression was upregulated in cancer tissues, compared with that in NATs (Figure S1B,C,G,H), and slight difference was observed among different stages of cancers (Figure S1E,F,J,K). The gene discussed is KDM1A; the disease is colon adenocarcinoma.