Cited by 17Chromatin Remodeling and CancerNeurotransmitter Receptor Influence on BehaviorGenomics and Chromatin Dynamics

SWI/SNF chromatin remodeler complex within the reward pathway is required for behavioral adaptations to stress

Open access
Zayed, Abdallah, Baranowski, Camille, Compagnion, Anne-Claire, Vernochet, Cécile, Karaki, Samah, Cuttoli, Romain Durand-de, Saint-Jour, Estefani, Bhattacharya, Soumee +8 more·2022·Nature Communications

Published version of a preprint

Abstract

Enduring behavioral changes upon stress exposure involve changes in gene expression sustained by epigenetic modifications in brain circuits, including the mesocorticolimbic pathway. Brahma (BRM) and Brahma Related Gene 1 (BRG1) are ATPase subunits of the SWI/SNF complexes involved in chromatin remodeling, a process essential to enduring plastic changes in gene expression. Here, we show that in mice, social defeat induces changes in BRG1 nuclear distribution. The inactivation of the Brg1/Smarca4 gene within dopamine-innervated regions or the constitutive inactivation of the Brm/Smarca2 gene leads to resilience to repeated social defeat and decreases the behavioral responses to cocaine without impacting midbrain dopamine neurons activity. Within striatal medium spiny neurons, Brg1 gene inactivation reduces the expression of stress- and cocaine-induced immediate early genes, increases levels of heterochromatin and at a global scale decreases chromatin accessibility. Altogether these data demonstrate the pivotal function of SWI/SNF complexes in behavioral and transcriptional adaptations to salient environmental challenges.

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Crossref · 10.1038/s41467-022-29380-8

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  • Inactivation of the ATPase subunit of the SWI/SNF complexes, Brahma Related Gene 1, reduces the expression of stress- and cocaine-induced immediate early genes, increases heterochromatin levels, and generally reduces chromatin accessibility in striatal medium spiny neurons.

    “The inactivation of ATPase subunit of the SWI/SNF complexes, Brahma Related Gene 1, reduces the expression of stress- and cocaine-induced immediate early genes, increases heterochromatin levels, and generally reduces chromatin accessibility in striatal medium spiny neurons.379”

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  1. [74]Paxinos, G. & Watson, C. The mouse brain in stereotaxic coordinates. 5 (Elsevier, 2004).

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Authors
Zayed, A., Baranowski, C., Compagnion, A.-C., Vernochet, C., Karaki, S., Cuttoli, R. D.-D., Saint-Jour, E., Bhattacharya, S., Marti, F., Vanhoutte, P., Yaniv, M., Faure, P., Barik, J., Amar, L., Tronche, F., & Parnaudeau, S.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Tronche, François
Venue
Nature Communications
Published
2022-04-04
Volume
13
Issue
1
Pages
1807-1807
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4225846741
Cited by
17
References
85
Citations by year
2026: 4 · 2025: 4 · 2024: 3 · 2023: 5 · 2022: 1
FWCI
1.06
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • HAL (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Agence Nationale de la Recherche (ANR3053NEUR3143830)
  • Institut National Du Cancer (TABAC)
  • Fondation pour la Recherche Médicale (DEQ20140329552)
  • Labex BioPsy Grant Social status, social behavior and psychiatric disorders Sorbonne Université, Emergence Program Stress, Transcription and Behavior
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
SWI/SNF chromatin remodeling, SMARCA4, BRM, social defeat, stress resilience, striatal medium spiny neurons, heterochromatin, chromatin accessibility, immediate early genes, midbrain dopaminergic neurons, epigenetic adaptation
MeSH terms
Adenosine Triphosphatases, Animals, Chromatin, Reward, Chromatin Assembly and Disassembly, Cell Line, Tumor, Mice

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