Cited by 900Bone Metabolism and DiseasesAdipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and Metabolism

Osteocalcin differentially regulates β cell and adipocyte gene expression and affects the development of metabolic diseases in wild-type mice

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Ferron, Mathieu, Hinoi, Eiichi, Karsenty, Gerard, Ducy, Patricia·2008·Proceedings of the National Academy of Sciences

Abstract

The osteoblast-specific secreted molecule osteocalcin behaves as a hormone regulating glucose metabolism and fat mass in two mutant mouse strains. Here, we ask two questions: is the action of osteocalcin on β cells and adipocytes elicited by the same concentrations of the molecule, and more importantly, does osteocalcin regulate energy metabolism in WT mice? Cell-based assays using isolated pancreatic islets, a β cell line, and primary adipocytes showed that picomolar amounts of osteocalcin are sufficient to regulate the expression of the insulin genes and β cell proliferation markers, whereas nanomolar amounts affect adiponectin and Pgc1α expression in white and brown adipocytes, respectively. In vivo the same difference exists in osteocalcin's ability to regulate glucose metabolism on the one hand and affect insulin sensitivity and fat mass on the other hand. Furthermore, we show that long-term treatment of WT mice with osteocalcin can significantly weaken the deleterious effect on body mass and glucose metabolism of gold thioglucose-induced hyperphagia and high-fat diet. These results establish in WT mice the importance of this novel molecular player in the regulation of glucose metabolism and fat mass and suggest that osteocalcin may be of value in the treatment of metabolic diseases.

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Authors
Ferron, M., Hinoi, E., Karsenty, G., & Ducy, P.
Affiliations
  • Columbia University (US)
  • Departments of *Genetics and Development and
Venue
Proceedings of the National Academy of Sciences
Published
2008-04
Volume
105
Issue
13
Pages
5266-5270
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2047761422
Cited by
900
References
22
Citations by year
2026: 18 · 2025: 9 · 2024: 39 · 2023: 21 · 2022: 37 · 2021: 41 · 2020: 56 · 2019: 47 · 2018: 38 · 2017: 69 · 2016: 51 · 2015: 70 · 2014: 68 · 2013: 72 · 2012: 72
FWCI
25.95
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • Japan Society for the Promotion of Science
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
osteocalcin, pancreatic beta cells, adipocytes, insulin gene expression, beta-cell proliferation, adiponectin, PGC-1α, glucose metabolism, insulin sensitivity, fat mass, hyperphagia, high-fat diet, metabolic disorders, pancreatic islets, brown adipose tissue
MeSH terms
Insulin Secretion, Adipose Tissue, Animals, Cells, Cultured, Diabetes Mellitus, Female, Gene Expression Regulation, Glucose, Insulin, Metabolic Diseases, Mice, Inbred C57BL, Obesity, Sensitivity and Specificity, Osteocalcin, Adipocytes, Insulin-Secreting Cells, Mice

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