title: FTO, RNA epigenetics and epilepsy.
abstract: Several recent landmark papers describing N(6) -methyladenosine (m(6) A) RNA modifications have provided valuable new insights as to the importance of m(6) A in the RNA transcriptome and in furthering the understanding of RNA epigenetics. One endogenous enzyme responsible for demethylating RNA m(6) A, FTO, is highly expressed in the CNS and is likely involved in mRNA metabolism, splicing or other nuclear RNA processing events. microRNAs (miRNAs), a family of small, non-coding transcripts that bind to target mRNAs and inhibit subsequent translation, are highly expressed in the CNS and are associated with several neurological disorders, including epilepsy. miRNAs frequently bind to recognition sequences in the 3'UTR, a region that is also enriched for m(6) A. Certain specific miRNAs are upregulated by neuronal activity and are coupled to epileptogenesis; these miRNAs contain a consensus m(6) A site that if methylated could possibly regulate miRNA processing or function. This commentary highlights aspects from recent papers to propose a functional association between FTO, RNA epigenetics and epilepsy.
authors.affiliation: Department of Pharmaceutical Sciences, College of Pharmacy, Glendale, AZ, USA.
authors.forename: Joie
authors.initials: J
authors.lastname: Rowles
authors.forename: Morgan
authors.initials: M
authors.lastname: Wong
authors.forename: Ryan
authors.initials: R
authors.lastname: Powers
authors.forename: Mark
authors.initials: M
authors.lastname: Olsen
mesh_terms: D020413:3' Untranslated Regions / Q000235:genetics; D000241:Adenosine / Q000031:analogs & derivatives* / Q000235:genetics / Q000378:metabolism; D000071516:Alpha-Ketoglutarate-Dependent Dioxygenase FTO; D002490:Central Nervous System / Q000378:metabolism / Q000473:pathology; D044127:Epigenesis, Genetic / Q000235:genetics; D004827:Epilepsy / Q000235:genetics / Q000378:metabolism; D005786:Gene Expression Regulation; D006801:Humans; D008745:Methylation; D035683:MicroRNAs / Q000235:genetics; D011506:Proteins / Q000235:genetics / Q000378:metabolism; D012323:RNA Processing, Post-Transcriptional; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D059467:Transcriptome / Q000235:genetics
chemical_list: D020413:3' Untranslated Regions; D035683:MicroRNAs; D011506:Proteins; D012333:RNA, Messenger; C010223:N-methyladenosine; D000071516:Alpha-Ketoglutarate-Dependent Dioxygenase FTO; C526492:FTO protein, human; D000241:Adenosine