Cited by 1,311Bone Metabolism and DiseasesBone health and osteoporosis researchRegulation of Appetite and Obesity

Leptin regulation of bone resorption by the sympathetic nervous system and CART

Elefteriou, Florent, Ahn, Jong Deok, Takeda, Shu, Starbuck, Michael, Yang, Xiangli, Liu, Xiuyun, Kondo, Hisataka, Richards, William G. +5 more·2005·Nature

Abstract

Bone remodelling, the mechanism by which vertebrates regulate bone mass, comprises two phases, namely resorption by osteoclasts and formation by osteoblasts; osteoblasts are multifunctional cells also controlling osteoclast differentiation. Sympathetic signalling via beta2-adrenergic receptors (Adrb2) present on osteoblasts controls bone formation downstream of leptin. Here we show, by analysing Adrb2-deficient mice, that the sympathetic nervous system favours bone resorption by increasing expression in osteoblast progenitor cells of the osteoclast differentiation factor Rankl. This sympathetic function requires phosphorylation (by protein kinase A) of ATF4, a cell-specific CREB-related transcription factor essential for osteoblast differentiation and function. That bone resorption cannot increase in gonadectomized Adrb2-deficient mice highlights the biological importance of this regulation, but also contrasts sharply with the increase in bone resorption characterizing another hypogonadic mouse with low sympathetic tone, the ob/ob mouse. This discrepancy is explained, in part, by the fact that CART ('cocaine amphetamine regulated transcript'), a neuropeptide whose expression is controlled by leptin and nearly abolished in ob/ob mice, inhibits bone resorption by modulating Rankl expression. Our study establishes that leptin-regulated neural pathways control both aspects of bone remodelling, and demonstrates that integrity of sympathetic signalling is necessary for the increase…

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Crossref · 10.1038/nature03398

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  • A type I collagen α1 first-intron polymorphism and high homocysteine can affect fracture risk independently of BMD.

    “A polymorphism of the first intron of the gene coding for the type I collagen α1 chain and increased levels of homocysteine can influence fracture risk independent of BMD”

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Authors
Elefteriou, F., Ahn, J. D., Takeda, S., Starbuck, M., Yang, X., Liu, X., Kondo, H., Richards, W. G., Bannon, T. W., Noda, M., Clement, K., Vaisse, C., & Karsenty, G.
Affiliations
  • Baylor College of Medicine (US)
  • Tokyo Medical and Dental University (JP)
  • Amgen (United States) (US)
  • University of California, San Francisco (US)
Venue
Nature
Published
2005-02-20
Volume
434
Issue
7032
Pages
514-520
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1997508587
Cited by
1,311
References
17
Citations by year
2026: 45 · 2025: 46 · 2024: 55 · 2023: 43 · 2022: 38 · 2021: 59 · 2020: 51 · 2019: 48 · 2018: 51 · 2017: 52 · 2016: 53 · 2015: 69 · 2014: 83 · 2013: 67 · 2012: 84
FWCI
30.49
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK060540)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
leptin, bone resorption, bone remodeling, sympathetic nervous system, osteoclastogenesis, RANKL, beta2-adrenergic receptor, protein kinase A, osteoblasts, gonadectomy, osteoporosis, ob/ob mice, gonadal failure
MeSH terms
Cocaine- and Amphetamine-Regulated Transcript Protein, Amino Acid Sequence, Animals, Bone Resorption, Carrier Proteins, Cell Line, Child, Child, Preschool, Humans, Male, Membrane Glycoproteins, Models, Neurological, Neoplasm Proteins, Nerve Tissue Proteins, Osteoblasts, Osteogenesis, Sympathetic Nervous System, Transcription Factors, Signal Transduction, Gene Deletion, Cyclic AMP-Dependent Protein Kinases, Receptors, Adrenergic, beta-2, Response Elements, Leptin, Receptor, Melanocortin, Type 4, Mice, Activating Transcription Factor 4, RANK Ligand, Receptor Activator of Nuclear Factor-kappa B, Receptors, Leptin

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