Cited by 126Bone Metabolism and DiseasesBone health and osteoporosis researchAlkaline Phosphatase Research Studies

The DOI matches its Crossref record; 64 of the 64 references it cites were found in a registry or an index.

Osteocytic oxygen sensing controls bone mass through epigenetic regulation of sclerostin

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Abstract

Preservation of bone mass is crucial for healthy ageing and largely depends on adequate responses of matrix-embedded osteocytes. These cells control bone formation and resorption concurrently by secreting the WNT/β-catenin antagonist sclerostin (SOST). Osteocytes reside within a low oxygen microenvironment, but whether and how oxygen sensing regulates their function remains elusive. Here, we show that conditional deletion of the oxygen sensor prolyl hydroxylase (PHD) 2 in osteocytes results in a high bone mass phenotype, which is caused by increased bone formation and decreased resorption. Mechanistically, enhanced HIF-1α signalling increases Sirtuin 1-dependent deacetylation of the Sost promoter, resulting in decreased sclerostin expression and enhanced WNT/β-catenin signalling. Additionally, genetic ablation of PHD2 in osteocytes blunts osteoporotic bone loss induced by oestrogen deficiency or mechanical unloading. Thus, oxygen sensing by PHD2 in osteocytes negatively regulates bone mass through epigenetic regulation of sclerostin and targeting PHD2 elicits an osteo-anabolic response in osteoporotic models.

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Crossref · 10.1038/s41467-018-04679-7

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Metadata

Authors
Stegen, S., Stockmans, I., Moermans, K., Thienpont, B., Maxwell, P. H., Carmeliet, P., & Carmeliet, G.
Affiliations
  • KU Leuven (BE)
  • University of Cambridge (GB)
  • VIB-KU Leuven Center for Cancer Biology (BE)
Corresponding author
Carmeliet, Geert
Venue
Nature Communications
Published
2018-07-02
Volume
9
Issue
1
Pages
2557-2557
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2810241167
Cited by
126
References
64
Citations by year
2026: 11 · 2025: 9 · 2024: 18 · 2023: 16 · 2022: 20 · 2021: 15 · 2020: 23 · 2019: 14
FWCI
4.62
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Lirias (submittedVersion, other-oa)
  • Apollo (University of Cambridge) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Apollo (cc-by)
Funders
  • Wellcome Trust (096956/Z/11/Z)
  • National Institute for Health and Care Research (NF-SI-0514-10122)
  • Fonds Wetenschappelijk Onderzoek (12H5917N, G0A4216N)
  • Vlaamse regering
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
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Alkaline Phosphatase Research Studies
Keywords
osteocytes, oxygen sensing, prolyl hydroxylase 2, sclerostin, HIF-1α, SIRT1, histone deacetylation, Wnt/β-catenin signaling, bone mass regulation, bone formation, bone resorption, osteoporosis, estrogen deficiency, mechanical unloading, epigenetic regulation
MeSH terms
Acetylation, Animals, Carbazoles, Cell Line, Disease Models, Animal, Female, Glycoproteins, Heterocyclic Compounds, 4 or More Rings, Humans, Male, Mice, Inbred C57BL, Mice, Transgenic, Osteocytes, Osteogenesis, Osteoporosis, Oxygen, Promoter Regions, Genetic, Bone Density, Coculture Techniques, Intercellular Signaling Peptides and Proteins, Epigenesis, Genetic, Adaptor Proteins, Signal Transducing, Hypoxia-Inducible Factor 1, alpha Subunit, Sirtuin 1, Wnt Signaling Pathway, Primary Cell Culture, Hypoxia-Inducible Factor-Proline Dioxygenases

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