For example, there were 7 m6A modification sites on lncRNA FEZF1-AS1, and silencing METTL14, METTL3, YTHDF1, and YTHDF2 could reduce the FEZF1-AS1 levels; as well as knocking out FEZF1-AS1 could inhibit the proliferation, migration, and invasion of NSCLC cell lines [17]. This evidence concerns the gene YTHDF2 and non-small cell lung carcinoma.