m6A facilitates hippocampus-dependent learning and memory through YTHDF1

Hailing Shi, Xuliang Zhang, Yi Lan Weng, Zongyang Lu, Yajing Liu, Zhike Lu, Jianan Li, Piliang Hao, Yu Zhang, Feng Zhang, You Wu, Jary Y. Delgado, Yijing Su, Meera J. Patel, Xiaohua Cao, Bin Shen, Xingxu Huang, Guo li Ming, Xiaoxi Zhuang, Hongjun SongChuan He, Tao Zhou

Research output: Contribution to journalArticlepeer-review

293 Scopus citations


N6-methyladenosine (m6A), the most prevalent internal RNA modification on mammalian messenger RNAs, regulates the fates and functions of modified transcripts through m6A-specific binding proteins1–5. In the nervous system, m6A is abundant and modulates various neural functions6–11. Whereas m6A marks groups of mRNAs for coordinated degradation in various physiological processes12–15, the relevance of m6A for mRNA translation in vivo remains largely unknown. Here we show that, through its binding protein YTHDF1, m6A promotes protein translation of target transcripts in response to neuronal stimuli in the adult mouse hippocampus, thereby facilitating learning and memory. Mice with genetic deletion of Ythdf1 show learning and memory defects as well as impaired hippocampal synaptic transmission and long-term potentiation. Re-expression of YTHDF1 in the hippocampus of adult Ythdf1-knockout mice rescues the behavioural and synaptic defects, whereas hippocampus-specific acute knockdown of Ythdf1 or Mettl3, which encodes the catalytic component of the m6A methyltransferase complex, recapitulates the hippocampal deficiency. Transcriptome-wide mapping of YTHDF1-binding sites and m6A sites on hippocampal mRNAs identified key neuronal genes. Nascent protein labelling and tether reporter assays in hippocampal neurons showed that YTHDF1 enhances protein synthesis in a neuronal-stimulus-dependent manner. In summary, YTHDF1 facilitates translation of m6A-methylated neuronal mRNAs in response to neuronal stimulation, and this process contributes to learning and memory.

Original languageEnglish (US)
Pages (from-to)249-253
Number of pages5
Issue number7730
StatePublished - Nov 8 2018

ASJC Scopus subject areas

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