METTL3 and cancer: Subsequently, the patient overall survival was further analysed, as demonstrated in Figure S1E‐G, the LIHC (Figure S1E), KICH (Figure S1F) and ACC (Figure S1G) patients with a high level of METTL3 developed a poor survival, indicating that METTL3 may be an oncogene for several cancers, including liver cancer.