Cited by 732Adipose Tissue and MetabolismPeroxisome Proliferator-Activated ReceptorsAdipokines, Inflammation, and Metabolic Diseases

Myogenic gene expression signature establishes that brown and white adipocytes originate from distinct cell lineages

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Timmons, James A., Wennmalm, Kristian, Larsson, Ola, Walden, Tomas B., Lassmann, Timo, Petrovic, Natasa, Hamilton, D. Lee, Gimeno, Ruth E. +4 more·2007·Proceedings of the National Academy of Sciences

Abstract

Attainment of a brown adipocyte cell phenotype in white adipocytes, with their abundant mitochondria and increased energy expenditure potential, is a legitimate strategy for combating obesity. The unique transcriptional regulators of the primary brown adipocyte phenotype are unknown, limiting our ability to promote brown adipogenesis over white. In the present work, we used microarray analysis strategies to study primary preadipocytes, and we made the striking discovery that brown preadipocytes demonstrate a myogenic transcriptional signature, whereas both brown and white primary preadipocytes demonstrate signatures distinct from those found in immortalized adipogenic models. We found a plausible SIRT1-related transcriptional signature during brown adipocyte differentiation that may contribute to silencing the myogenic signature. In contrast to brown preadipocytes or skeletal muscle cells, white preadipocytes express Tcf21, a transcription factor that has been shown to suppress myogenesis and nuclear receptor activity. In addition, we identified a number of developmental genes that are differentially expressed between brown and white preadipocytes and that have recently been implicated in human obesity. The interlinkage between the myocyte and the brown preadipocyte confirms the distinct origin for brown versus white adipose tissue and also represents a plausible explanation as to why brown adipocytes ultimately specialize in lipid catabolism rather than storage, much like oxidative skeletal muscle tissue.

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  • Emerging evidence suggests that brown adipocytes located in different anatomical locations may arise from different developmental origins.

    “Emerging evidence suggests that brown adipocytes located in different anatomical locations may arise from different developmental origins.”

    From Cellular bioenergetics as a target for obesity therapy (2010) · cites this paper as [91]

  • Cultured brown fat precursors appear to possess a myogenic signature, which includes myf5.

    “In support of this notion, cultured brown fat precursors appear to possess a myogenic signature, which includes myf5 91.”

    From Cellular bioenergetics as a target for obesity therapy (2010) · cites this paper as [91]

  • The genetic program leading to brown adipose tissue development, and potentially to the high abundance of mitochondria, is initiated by the zinc-finger protein PRDM16.

    “The genetic program leading to brown adipose tissue development, and potentially to the high abundance of mitochondria, is initiated by the zinc-finger protein PRDM16 (202)(203)(204).”

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Research works printed but not linked: 1

  1. Quaggin SE, Schwartz L, Cui S, Igarashi P, Deimling J, Post M, Rossant J (1999) Development (Cambridge, UK) 126:5771-5783.

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Authors
Timmons, J. A., Wennmalm, K., Larsson, O., Walden, T. B., Lassmann, T., Petrovic, N., Hamilton, D. L., Gimeno, R. E., Wahlestedt, C., Baar, K., Nedergaard, J., & Cannon, B.
Affiliations
  • Stockholm University (SE)
  • Karolinska Institutet (SE)
  • *Wenner–Gren Institute, Arrhenius Laboratories, Stockholm University, SE-106 91 Stockholm, Sweden;
  • University of Dundee (GB)
  • Pfizer (United States) (US)
  • Scripps Research Institute (US)
Corresponding author
  • Timmons, James A.
  • Cannon, Barbara
Venue
Proceedings of the National Academy of Sciences
Published
2007-03-13
Volume
104
Issue
11
Pages
4401-4406
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1968963111
Cited by
732
References
51
Citations by year
2026: 10 · 2025: 27 · 2024: 19 · 2023: 24 · 2022: 28 · 2021: 39 · 2020: 31 · 2019: 33 · 2018: 43 · 2017: 48 · 2016: 46 · 2015: 59 · 2014: 50 · 2013: 62 · 2012: 51
FWCI
25.37
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Deakin Research Online (Deakin University) (submittedVersion)
  • Stirling Online Research Repository (University of Stirling) (submittedVersion, public-domain)
Topics
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
brown adipocytes, white adipocytes, brown adipogenesis, preadipocytes, SIRT1, TCF21, myogenesis, obesity, lipid degradation, transcription factors
MeSH terms
Animals, Adipose Tissue, Brown, Cell Differentiation, Gene Expression Regulation, Lipids, Male, Oxygen, Adipocytes, Muscle, Skeletal, Cell Lineage, Gene Silencing, Principal Component Analysis, Sirtuins, Mice, Basic Helix-Loop-Helix Proteins, Sirtuin 1

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