In addition, abnormalities in m6A RNA methylation regulatory proteins, such as the change of “writers” like methyltransferase-like protein 3/14 (METTL3/14), “erasers” like fat mass and obesity-associated protein (FTO) and AlkB homolog 5 (ALKBH5), and “readers” like YT521-B homology (YTH) domain family protein 1-3 (YTHDF1-3) and YTH domain-containing protein 2 (YTHDC2), are also reported to be involved in the radioresistance of cancer cells [134]. Here, METTL3 is linked to cancer.