CD244 and lung adenocarcinoma: As revealed in Fig. 1A–C, among these tumor types, including UCEC, colon adenocarcinoma (COAD), liver hepatocellular carcinoma (LIHC), prostate adenocarcinoma (PRAD), lung adenocarcinoma (LUAD), rectum adenocarcinoma (READ), and lung squamous cell carcinoma (LUSC), CD244 expression were significantly lower in the tumor tissues than in the normal tissues.