Other recent studies have shown that the expression level of METTL3 (methyltransferase-like 3) enzyme, involved in the modification of RNA molecules through a process called N6-methyladenosine (m6A) methylation, is higher in TNBC compared to other breast cancer subtypes and normal breast tissue (MCF-10A cells; a non-tumoral breast epithelial cell line) [232]. This evidence concerns the gene METTL3 and breast cancer.