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N6-Methyladenosine (m6A), the most common and reversible mRNA modification, has attracted considerable attention recently, and accumulating evidence indicates it has an important role in the progression of ischemic stroke (IS). We first reviewed m6A methylation modification enzymes, including m6A methyltransferases (METTL3, METTL14, and WTAP), demethylases (FTO and ALKBH5), m6A-binding proteins (YTH domain containing 1/2 [YTHDC1/2], YTHDF1/2/3, and insulin like growth factor 2 mRNA binding protein 1/2/3 [IGF2BP1/2/3]), and their-related functions. An alteration in the m6A methylation profile of IS has been reported and m6A is differentially expressed in IS. Thus, we then focused on the underlying mechanism of m6A methylation in IS and the involvement of atherosclerosis (AS), cerebral ischemia/reperfusion (IR) injury, inflammation, oxidative stress, and apoptosis. Furthermore, we also elucidated the effect of m6A-associated single-nucleotide polymorphisms (SNPs) on stroke and uncovered new causal variants for IS. The clinical application of m6A targeting drugs is still in its infancy and will be available in the future. Collectively, the information in the present review is a summary of the latest developments in m6A modification and highlights the mechanisms underlying IS pathogenesis, which may provide novel insights into the mechanisms and therapeutic targets for IS.

Role of N6-methyladenosine modification in pathogenesis of ischemic stroke