Cited by 252MicroRNA in disease regulationStress Responses and CortisolNeuropeptides and Animal Physiology

microRNA as Repressors of Stress-Induced Anxiety: The Case of Amygdalar miR-34

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Haramati, Sharon, Navon, Inbal, Issler, Orna, Ezra-Nevo, Gili, Gil, Shosh, Zwang, Raaya, Hornstein, Eran, Chen, Alon·2011·The Journal of Neuroscience

Abstract

The etiology and pathophysiology of anxiety and mood disorders is linked to inappropriate regulation of the central stress response. To determine whether microRNAs have a functional role in the regulation of the stress response, we inactivated microRNA processing by a lentiviral-induced local ablation of the Dicer gene in the central amygdala (CeA) of adult mice. CeA Dicer ablation induced a robust increase in anxiety-like behavior, whereas manipulated neurons survive and appear to exhibit normal gross morphology in the time period examined. We also observed that acute stress in wild-type mice induced a differential expression profile of microRNAs in the amygdala. Bioinformatic analysis identified putative gene targets for these stress-responsive microRNAs, some of which are known to be associated with stress. One of the prominent stress-induced microRNAs found in this screen, miR-34c, was further confirmed to be upregulated after acute and chronic stressful challenge and downregulated in Dicer ablated cells. Lentivirally mediated overexpression of miR34c specifically within the adult CeA induced anxiolytic behavior after challenge. Of particular interest, one of the miR-34c targets is the stress-related corticotropin releasing factor receptor type 1 (CRFR1) mRNA, regulated via a single evolutionary conserved seed complementary site on its 3′ UTR. Additional in vitro studies demonstrated that miR-34c reduces the responsiveness of cells to CRF in neuronal cells endogenously expressing CRFR1. Our results suggest a physiological role for microRNAs in regulating the central stress response and position them as potential targets for treatment of stress-related disorders.

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Crossref · 10.1523/jneurosci.1673-11.2011

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  • miR-34c overexpression in the central amygdala relieved anxiety by decreasing CRF receptor type 1, an important modulator of the response to stress.

    “For example, miR-34c overexpression in the central amygdala relieved anxiety by decreasing CRF receptor type 1, an important modulator of the response to stress.”
  • Environmental stress and antidepressant medications change miRNA expression levels in various brain regions that control mood, including the prefrontal cortex, amygdala, nucleus accumbens, locus coeruleus, and dorsal raphe nucleus.

    “Environmental stress and antidepressant medications change miRNA expression levels in various brain regions that control mood, including the PFC, amygdala, nucleus accumbens, locus coeruleus, and dorsal raphe nucleus.”

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Authors
Haramati, S., Navon, I., Issler, O., Ezra-Nevo, G., Gil, S., Zwang, R., Hornstein, E., & Chen, A.
Affiliations
Weizmann Institute of Science (IL)
Corresponding author
Chen, Alon
Venue
The Journal of Neuroscience
Published
2011-10-05
Volume
31
Issue
40
Pages
14191-14203
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1995621192
Cited by
252
References
87
Citations by year
2026: 5 · 2025: 6 · 2024: 6 · 2023: 16 · 2022: 11 · 2021: 12 · 2020: 19 · 2019: 21 · 2018: 20 · 2017: 21 · 2016: 32 · 2015: 23 · 2014: 25 · 2013: 19 · 2012: 16
FWCI
6.53
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Israel Science Foundation
  • FP7 Ideas: European Research Council (260463)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
microRNA, miR-34c, anxiety, central amygdala, stress response, corticotropin-releasing hormone receptor 1, 3' UTR regulation, lentiviral overexpression, acute stress, chronic stress, stress-related disorders, mood disorders
MeSH terms
Amygdala, Animals, Anxiety, Cells, Cultured, Corticotropin-Releasing Hormone, Humans, Male, Mice, Inbred C57BL, Mice, Inbred ICR, Mice, Transgenic, Stress, Psychological, Down-Regulation, Up-Regulation, Conserved Sequence, MicroRNAs, Ribonuclease III, Mice, DEAD-box RNA Helicases, Mice, 129 Strain, HEK293 Cells

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