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The N6-methyladenosine RNA modification in acute myeloid leukemia

Purpose of review In recent years, the N6-methyladenosine (m6A) modification of RNA has been shown to play an important role in the development of acute myeloid leukemia (AML) and the maintenance of leukemic stem cells (LSCs). In this review we summarise the recent findings in the field of epitranscriptomics related to m6A and its relevance in AML. Recent findings Recent studies have focused on the role of m6A regulators in the development of AML and their potential as translational targets. The writer Methyltransferase Like 3 and its binding partner Methyltransferase Like 14, as well as the reader YTH domain-containing family protein 2, were shown to be vital for LSC survival, and their loss has detrimental effects on AML cells. Similar observations were made with the demethylases fat mass and obesity-associated protein and AlkB homologue 5 RNA demethylase. Of importance, loss of any of these genes has little to no effect on normal hemopoietic stem cells, suggesting therapeutic potential. Summary The field of epitranscriptomics is still in its infancy and the importance of m6A and other RNA-modifications in AML will only come into sharper focus. The development of therapeutics targeting RNA-modifying enzymes may open up new avenues for treatment of such malignancies.