m6A Methylation: A Novel Key to Unlocking Mental Disorders

Int J Neuropsychopharmacol. 2025 Jul 1:pyaf044. doi: 10.1093/ijnp/pyaf044. Online ahead of print.

Abstract

More than 100 types of RNA modifications have been identified in mammalian cells, among which N6-methyladenosine (m6A) is the most prevalent. This reversible and dynamic modification involves methyltransferases, demethylases, and reader proteins. Aberrant expression of m6A-related regulatory proteins in the nervous system significantly impacts neuronal physiology, contributing to mental disorders such as depression, autism spectrum disorder, and schizophrenia. This review summarizes the role of m6A methylation in the pathogenesis of mental disorders and highlights its potential as a biomarker and therapeutic target, providing a comprehensive reference for future research and clinical interventions.

Keywords: learning and memory; m6A methylation; mental disorders; substance addiction.