The relationship between hypoxia and angiogenesis.

Published

Journal Article (Review)

Recent studies have generated a large amount of data supporting the hypothesis that hypoxia drives tumor angiogenesis. The relationship between the two is often considered a matter of supply and demand: ineffectively-vascularized tumor tissue becomes hypoxic, stimulating neoangiogenesis to improve the influx of oxygen, thereby diminishing the angiogenic drive. Although this paradigm is logically pleasing, much of what is known about tumor biology argues against such a straightforward relationship. In fact, some preclinical data convincingly shows that tumor hypoxia and angiogenesis do not always go hand in hand. It is important to begin to explore means of reconciling these discrepancies. Although poor oxygenation is a strong stimulus for tumor angiogenesis, (1) the pathogenesis of tumor hypoxia is much more complicated than the supply-demand paradigm lets on and (2) hypoxia is not necessarily sufficient or necessary for neovascularization to occur. These subtleties may help to explain why so much data disagrees with the current hypoxia-angiogenesis model and may begin to build a better understanding of the role hypoxia plays in tumor vascularization. This article will review what is known about hypoxia and angiogenesis in nononcological processes and will apply these lessons to tumor biology to more deeply describe their relationship.

Full Text

Duke Authors

Cited Authors

  • Moeller, BJ; Cao, Y; Vujaskovic, Z; Li, CY; Haroon, ZA; Dewhirst, MW

Published Date

  • July 1, 2004

Published In

Volume / Issue

  • 14 / 3

Start / End Page

  • 215 - 221

PubMed ID

  • 15254864

Pubmed Central ID

  • 15254864

International Standard Serial Number (ISSN)

  • 1053-4296

Digital Object Identifier (DOI)

  • 10.1016/j.semradonc.2004.04.005

Language

  • eng

Conference Location

  • United States