METTL3 and neoplasm: Methyltransferase-like 3 (METTL3), a methyltransferase responsible for the methylation of N6 methyladenosine (m6A), has been found to be involved in the sensitivity of tumor cells to cisplatin and the proliferation and metastasis of NSCLC cells (Du et al., 2017; Jin et al., 2019; Li et al., 2021).