Role of hypoxia-inducible factor-1α in angiogenic-osteogenic coupling

Ryan C. Riddle, Richa Khatri, Ernestina Schipani, Thomas L. Clemens

Research output: Contribution to journalReview articlepeer-review

Abstract

Angiogenesis and osteogenesis are tightly coupled during bone development and regeneration. The vasculature supplies oxygen to developing and regenerating bone and also delivers critical signals to the stroma that stimulate mesenchymal cell specification to promote bone formation. Recent studies suggest that the hypoxia-inducible factors (HIFs) are required for the initiation of the angiogenic-osteogenic cascade. Genetic manipulation of individual components of the HIF/vascular endothelial growth factor (VEGF) pathway in mice has provided clues to how coupling is achieved. In this article, we review the current understanding of the cellular and molecular mechanisms responsible for angiogenic-osteogenic coupling. We also briefly discuss the therapeutic manipulation of HIF and VEGF in skeletal repair. Such discoveries suggest promising approaches for the development of novel therapies to improve bone accretion and repair.

Original languageEnglish (US)
Pages (from-to)583-590
Number of pages8
JournalJournal of Molecular Medicine
Volume87
Issue number6
DOIs
StatePublished - Jun 1 2009
Externally publishedYes

Keywords

  • Endochondral bone formation
  • Fracture repair
  • Hypoxia-inducible factor
  • VEGF

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery
  • Genetics(clinical)

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