Cited by 205Adipose Tissue and MetabolismPeroxisome Proliferator-Activated ReceptorsMetabolism, Diabetes, and Cancer

The genetic ablation of SRC-3 protects against obesity and improves insulin sensitivity by reducing the acetylation of PGC-1α

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Coste, Agnès, Louet, Jean-Francois, Lagouge, Marie, Lerin, Carles, Antal, Maria Cristina, Meziane, Hamid, Schoonjans, Kristina, Puigserver, Pere +2 more·2008·Proceedings of the National Academy of Sciences

Abstract

Transcriptional control of metabolic circuits requires coordination between specific transcription factors and coregulators and is often deregulated in metabolic diseases. We characterized here the mechanisms through which the coactivator SRC-3 controls energy homeostasis. SRC-3 knock-out mice present a more favorable metabolic profile relative to their wild-type littermates. This metabolic improvement in SRC-3 −/− mice is caused by an increase in mitochondrial function and in energy expenditure as a consequence of activation of PGC-1α. By controlling the expression of the only characterized PGC-1α acetyltransferase GCN5, SRC-3 induces PGC-1α acetylation and consequently inhibits its activity. Interestingly, SRC-3 expression is induced by caloric excess, resulting in the inhibition of PGC-1α activity and energy expenditure, whereas caloric restriction reduces SRC-3 levels leading to enhanced PGC-1α activity and energy expenditure. Collectively, these data suggest that SRC-3 is a critical link in a cofactor network that uses PGC-1α as an effector to control mitochondrial function and energy homeostasis.

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Crossref · 10.1073/pnas.0808207105

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Authors
Coste, A., Louet, J.-F., Lagouge, M., Lerin, C., Antal, M. C., Meziane, H., Schoonjans, K., Puigserver, P., O'Malley, B. W., & Auwerx, J.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030;
  • Dana Farber Cancer Institute and Department of Cell Biology Harvard Medical School, Boston, MA 02115;
  • Phénotypage et ingénierie précliniques des systèmes d’organismes modèles (FR)
  • Institut Clinique de la Souris, 67404 Illkirch, France; and
  • Harvard University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2008-11-04
Volume
105
Issue
44
Pages
17187-17192
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2078252528
Cited by
205
References
25
Citations by year
2026: 3 · 2025: 1 · 2024: 13 · 2023: 9 · 2022: 5 · 2021: 6 · 2020: 10 · 2019: 8 · 2018: 5 · 2017: 13 · 2016: 16 · 2015: 12 · 2014: 18 · 2013: 19 · 2012: 20
FWCI
10.61
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
  • Institut National de la Santé et de la Recherche Médicale
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-59820, P01DK059820)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 07857, R01HD007857)
Topics
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
SRC-3, PGC-1α, protein acetylation, GCN5, transcriptional coactivator, obesity, insulin sensitivity, energy homeostasis, mitochondrial function, energy expenditure, caloric restriction, caloric excess, metabolic disorders
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, p300-CBP-Associated Factor, Acetylation, Animals, Energy Metabolism, Insulin Resistance, Male, Mice, Inbred C57BL, Mitochondria, Obesity, Transcription Factors, Trans-Activators, Mice, Knockout, Caloric Restriction, p300-CBP Transcription Factors, Mice, Histone Acetyltransferases, Nuclear Receptor Coactivator 3

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