Cited by 32RNA modifications and cancerTreatment of Major DepressionNeurotransmitter Receptor Influence on Behavior

Erasing m6A-dependent transcription signature of stress-sensitive genes triggers antidepressant actions

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Wu, Peng-Fei, Han, Qian-Qian, Chen, Fu-Feng, Shen, Tian-Tian, Li, Yi-Heng, Cao, Yu, Chen, Jian-Guo, Wang, Fang·2021·Neurobiology of Stress

Abstract

Emerging evidence has shown that stress responsivity and psychiatric diseases are associated with alterations in N6-methyladenosine (m6A) mRNA epigenetic modifications. Fat mass and obesity-associated protein (FTO) is an m6A demethylase that has been linked to increased body mass and obesity. Here, we show that tricyclic antidepressants (TCAs) with weight-gain side effects, such as imipramine and amitriptyline, directly increased FTO expression and activated its epigenetic function in the ventral tegmental area (VTA). VTA-specific genetic disruption of FTO increased stress vulnerability and abolished the antidepressant activity of TCAs, whereas erasing m6A modification in the VTA by FTO overexpression or cycloleucine led to significant antidepressant activity. Mechanistically, both transcriptome sequencing and quantitative PCR revealed that overexpression of FTO in the VTA decreased the transcription of stress-related neuropeptides, such as cocaine- and amphetamine-regulated transcript peptide and urocortin, in the social defeat model, which was mimicked by imipramine, suggesting an m6A-dependent transcription mechanism of stress-related neuropeptides may underlie the responses to antidepressant. Collectively, our results demonstrate that inhibiting m6A-dependent transcription of stress-related genes may work as a novel antidepressant strategy and highlight a previously unrecognized activator of FTO-dependent epigenetic function that may be used for the treatment of other neurological diseases.

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Authors
Wu, P.-F., Han, Q.-Q., Chen, F.-F., Shen, T.-T., Li, Y.-H., Cao, Y., Chen, J.-G., & Wang, F.
Affiliations
Huazhong University of Science and Technology (CN)
Corresponding author
Wang, Fang
Venue
Neurobiology of Stress
Publisher
Elsevier BV
Published
2021-11
Volume
15
Pages
100390
ISSN
2352-2895 (ISSN-L)
OpenAlex
W3198508678
Cited by
32
References
73
Citations by year
2026: 7 · 2025: 6 · 2024: 5 · 2023: 7 · 2022: 7
FWCI
1.49
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Stress (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA modifications and cancer
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
N6-methyladenosine, m6A RNA methylation, FTO, tricyclic antidepressants, antidepressant mechanism, ventral tegmental area, stress vulnerability, social defeat, cocaine- and amphetamine-regulated transcript, urocortin, imipramine, amitriptyline, cycloleucine

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