For example, as a “writer,” METTL3 can not only promote the progression of pancreatic cancer by regulating the maturation of miR-25-3P [43], but it can also promote the tumorigenesis and metastasis of nasopharyngeal carcinoma by enhancing the stability of lncRNA FAM255A [44]. The gene discussed is METTL3; the disease is nasopharyngeal carcinoma.