Cited by 103Adipokines, Inflammation, and Metabolic DiseasesTGF-β signaling in diseasesAdipose Tissue and Metabolism

The roles of transforming growth factor-β and Smad3 signaling in adipocyte differentiation and obesity

Tsurutani, Yuya, Fujimoto, Masaki, Takemoto, Minoru, Irisuna, Hiroki, Koshizaka, Masaya, Onishi, Shunichiro, Ishikawa, Takahiro, Mezawa, Morito +5 more·2011·Biochemical and Biophysical Research Communications

Abstract

We aimed at elucidating the roles of transforming growth factor (TGF)-β and Smad3 signaling in adipocyte differentiation (adipogenesis) and in the pathogenesis of obesity. TGF-β/Smad3 signaling in white adipose tissue (WAT) was determined in genetically obese (ob/ob) mice. The effect of TGF-β on adipogenesis was evaluated in mouse embryonic fibroblasts (MEF) isolated both from WT controls and Smad3 KO mice by Oil red-O staining and gene expression analysis. Phenotypic analyses of high-fat diet (HFD)-induced obesity in Smad3 KO mice compared to WT controls were performed. TGF-β/Smad3 signaling was elevated in WAT from ob/ob mice compared to the controls. TGF-β significantly inhibited adipogenesis in MEF, but the inhibitory effects of TGF-β on adipogenesis were partially abolished in MEF from Smad3 KO mice. TGF-β inhibited adipogenesis independent from the Wnt and β-catenin pathway. Smad3 KO mice were protected against HFD-induced insulin resistance. The size of adipocytes from Smad3 KO mice on the HFD was significantly smaller compared to the controls. In conclusion, the TGF-β/Smad3 signaling pathway plays key roles not only in adipogenesis but also in development of insulin resistance.

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Crossref · 10.1016/j.bbrc.2011.02.106

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Authors
Tsurutani, Y., Fujimoto, M., Takemoto, M., Irisuna, H., Koshizaka, M., Onishi, S., Ishikawa, T., Mezawa, M., He, P., Honjo, S., Maezawa, Y., Saito, Y., & Yokote, K.
Affiliations
  • Chiba University (JP)
  • Chiba University Hospital (JP)
Corresponding author
Takemoto, Minoru
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2011-04
Volume
407
Issue
1
Pages
68-73
ISSN
0006-291X (ISSN-L)
OpenAlex
W1989244177
Cited by
102
References
26
Citations by year
2026: 2 · 2025: 7 · 2024: 6 · 2023: 5 · 2022: 7 · 2021: 8 · 2020: 10 · 2019: 8 · 2018: 11 · 2017: 7 · 2016: 6 · 2015: 6 · 2014: 6 · 2013: 6 · 2012: 5
FWCI
4.53
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Takeda Science Foundation
  • Ministry of Education, Culture, Sports, Science and Technology
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
TGF-beta, Smad3 signaling, adipogenesis, obesity, white adipose tissue, ob/ob mice, high-fat diet-induced obesity, insulin resistance, Smad3 knockout mice, adipocyte size, Wnt/β-catenin signaling
MeSH terms
Animals, Insulin, Insulin Resistance, Male, Obesity, Transforming Growth Factor beta, Mice, Knockout, Adipogenesis, Mice, Smad3 Protein, Adipose Tissue, White, Adipocytes, White

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