N-6-methyladenosine (m(6)A) RNA modification in human cancer

N-6-methyladenosine (m(6)A) RNA modification, first discovered in 1974, is the most prevalent, abundant and penetrating messenger RNA (mRNA) modification in eukaryotes. This governs the fate of modified transcripts, regulates RNA metabolism and biological processes, and participates in pathogenesis of numerous human diseases, especially in cancer through the reciprocal regulation of m(6)A methyltransferases ("writers") and demethylases ("erasers") and the binding proteins decoding m(6)A methylation ("readers"). Accumulating evidence indicates a complicated regulation network of m(6)A modification involving multiple m(6)A-associated regulatory proteins whose biological functions have been further analysed. This review aimed to summarize the current knowledge on the potential significance and molecular mechanisms of m(6)A RNA modification in the initiation and progression of cancer.