YTHDF2 and cancer: Numerous studies expound that N6-methyladenosine (m6A) modification-related genes, including METTL3, METTL14, YTHDC1, YTHDC2, YTHDF1, YTHDF2, WTAP, ALKBH5, FTO, etc., play vital role in the development and radio resistance of many cancers 33, 34.