Cited by 131Sirtuins and Resveratrol in MedicineTreatment of Major DepressionNeurotransmitter Receptor Influence on Behavior

SIRT1 in forebrain excitatory neurons produces sexually dimorphic effects on depression-related behaviors and modulates neuronal excitability and synaptic transmission in the medial prefrontal cortex

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Lei, Yun, Wang, Jiangong, Wang, Dan, Li, Chen, Liu, Bin, Fang, Xing, You, Jingjing, Guo, Ming +1 more·2020·Molecular Psychiatry

Abstract

-dependent deacetylase, is a key regulator of cellular metabolism. Recent genome-wide association studies identified genetic variants of SIRT1 linked to major depressive disorders. SIRT1 is widely expressed in the brain; however, neuronal substrates that mediate SIRT1 action on depressive behaviors remain largely unknown. Here we show that selective deletion of SIRT1 in forebrain excitatory neurons causes depression-like phenotypes in male but not female mice. AAV-Cre-mediated SIRT1 knockdown in the medial prefrontal cortex (mPFC) of adult male mice induces depressive-like behaviors. Whole-cell patch-clamp recordings demonstrate that loss of SIRT1 decreases intrinsic excitability and spontaneous excitatory synaptic transmission in layer V pyramidal neurons in the prelimbic mPFC. Consistent with neuronal hypoexcitability, SIRT1 knockout reduces mitochondrial density and expression levels of genes involved in mitochondrial biogenesis and dynamics in the prelimbic mPFC. When a SIRT1 activator (SRT2104) is injected into the mPFC or lateral ventricle of wild-type mice, it reverses chronic unpredictable stress-induced anhedonia and behavioral despair, indicating an antidepressant-like effect. These results suggest that SIRT1 in mPFC excitatory neurons is required for normal neuronal excitability and synaptic transmission and regulates depression-related behaviors in a sex-specific manner.

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  • SIRT1 has been shown to modulate mood-related behaviors in rodent models and to be necessary for normal neuronal excitability and synaptic functions.

    “It has been shown to modulate mood-related behaviors in rodent models, 42 and to be necessary for normal neuronal excitability and synaptic functions.”

    From Epigenetics and depression (2019) · cites this paper as [43]

  • Chronic unpredictable/mild/variable stress and chronic social defeat stress are the two most commonly used animal models of depression.

    “Chronic unpredictable/mild/variable stress and chronic social defeat stress are the two most commonly used animal models of depression [31, 34–38].”
  • Previous studies have shown that chronic unpredictable stress induces anhedonia and despair behavior in male mice.

    “Our previous studies have shown that chronic unpredictable stress induces anhedonia and despair behavior in male mice [36].”
  • The chronic unpredictable stress paradigm effectively induces anhedonia along with other depression-related behaviors, including reduced sensitivity to sucrose reward, decreased sex-related reward-seeking behavior, and despair behavior.

    “we used a chronic unpredictable stress paradigm, which effectively induces anhedonia along with other depression-related behaviors [34–36], including reduced sensitivity to sucrose reward, decreased sex-related reward-seeking behavior, and despair behavior.”
  • The chronic unpredictable stress paradigm models unanticipated stressful experiences that occur in humans and has been widely used as a valid animal model of depression.

    “This paradigm models unanticipated stressful experiences that occur in humans, and thus has been widely used as a valid animal model of depression [34, 36, 52].”

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Authors
Lei, Y., Wang, J., Wang, D., Li, C., Liu, B., Fang, X., You, J., Guo, M., & Lu, X.-Y.
Affiliations
  • The University of Texas at San Antonio Health Science Center (US)
  • Binzhou Medical College Hospital (CN)
  • Augusta University (US)
Corresponding author
Lu, Xin-Yun
Venue
Molecular Psychiatry
Published
2019-01-31
Volume
25
Issue
5
Pages
1094-1111
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W2913193276
Cited by
131
References
95
Citations by year
2026: 13 · 2025: 19 · 2024: 20 · 2023: 26 · 2022: 17 · 2021: 20 · 2020: 11 · 2019: 4
FWCI
6.84
Type
journal article
Language
en
Open access
Locations
  • Molecular Psychiatry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (MH076929, MH100583, MH096251)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
SIRT1, depression, medial prefrontal cortex, sexual dimorphism, neuronal excitability, synaptic transmission, prelimbic cortex, pyramidal neurons, mitochondrial biogenesis, mitochondrial dynamics, SRT2104, chronic unpredictable mild stress, anhedonia, behavioral despair, excitatory neurons, SIRT1 knockdown
MeSH terms
Animals, Depression, Major Depressive Disorder, Female, Male, Mice, Inbred C57BL, Synaptic Transmission, Neurons, Sex Characteristics, Prefrontal Cortex, Pyramidal Cells, Excitatory Postsynaptic Potentials, Mice, Sirtuin 1

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