Cited by 532Osteoarthritis Treatment and MechanismsBone Metabolism and DiseasesHip disorders and treatments

Transcriptional regulation of endochondral ossification by HIF-2α during skeletal growth and osteoarthritis development

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Saito, Taku, Fukai, Atsushi, Mabuchi, Akihiko, Ikeda, Toshiyuki, Yano, Fumiko, Ohba, Shinsuke, Nishida, Nao, Akune, Toru +6 more·2010·Nature Medicine

Abstract

Chondrocyte hypertrophy followed by cartilage matrix degradation and vascular invasion, characterized by expression of type X collagen (COL10A1), matrix metalloproteinase-13 (MMP-13) and vascular endothelial growth factor (VEGF), respectively, are central steps of endochondral ossification during normal skeletal growth and osteoarthritis development. A COL10A1 promoter assay identified hypoxia-inducible factor-2alpha (HIF-2alpha, encoded by EPAS1) as the most potent transactivator of COL10A1. HIF-2alpha enhanced promoter activities of COL10A1, MMP13 and VEGFA through specific binding to the respective hypoxia-responsive elements. HIF-2alpha, independently of oxygen-dependent hydroxylation, was essential for endochondral ossification of cultured chondrocytes and embryonic skeletal growth in mice. HIF-2alpha expression was higher in osteoarthritic cartilages versus nondiseased cartilages of mice and humans. Epas1-heterozygous deficient mice showed resistance to osteoarthritis development, and a functional single nucleotide polymorphism (SNP) in the human EPAS1 gene was associated with knee osteoarthritis in a Japanese population. The EPAS1 promoter assay identified RELA, a nuclear factor-kappaB (NF-kappaB) family member, as a potent inducer of HIF-2alpha expression. Hence, HIF-2alpha is a central transactivator that targets several crucial genes for endochondral ossification and may represent a therapeutic target for osteoarthritis.

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Crossref · 10.1038/nm.2146

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Authors
Saito, T., Fukai, A., Mabuchi, A., Ikeda, T., Yano, F., Ohba, S., Nishida, N., Akune, T., Yoshimura, N., Nakagawa, T., Nakamura, K., Tokunaga, K., Chung, U.-I., & Kawaguchi, H.
Affiliations
  • The University of Tokyo (JP)
  • Center for Disease Biology and Integrative Medicine, The University of Tokyo (JP)
Corresponding author
Kawaguchi, Hiroshi
Venue
Nature Medicine
Published
2010-05-23
Volume
16
Issue
6
Pages
678-686
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W1975554070
Cited by
532
References
57
Citations by year
2026: 21 · 2025: 20 · 2024: 22 · 2023: 25 · 2022: 33 · 2021: 54 · 2020: 48 · 2019: 35 · 2018: 26 · 2017: 30 · 2016: 35 · 2015: 42 · 2014: 38 · 2013: 33 · 2012: 26
FWCI
22.08
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
Funders
Japan Society for the Promotion of Science (21390417, 22689052)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Surgery › Hip disorders and treatments
Keywords
HIF-2α, EPAS1, osteoarthritis, endochondral ossification, chondrocyte hypertrophy, COL10A1, MMP-13, VEGF-A, hypoxia response element, transcriptional regulation, RelA, NF-κB, single nucleotide polymorphisms, therapeutic target, skeletal development
MeSH terms
Endothelial PAS Domain-Containing Protein 1, Aged, Aged, 80 and over, Animals, Bone Development, Cells, Cultured, Humans, Mice, Mutant Strains, Middle Aged, Osteoarthritis, Osteogenesis, Transcription, Genetic, Trans-Activators, Case-Control Studies, Gene Expression Regulation, Developmental, Chondrocytes, Osteoarthritis, Knee, Collagen Type X, Mice, Basic Helix-Loop-Helix Proteins

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