Regulatory role of HIF-1alpha in the pathogenesis of age-related macular degeneration (AMD)

Ageing Res Rev. 2009 Oct;8(4):349-58. doi: 10.1016/j.arr.2009.06.002. Epub 2009 Jul 7.

Abstract

Age-related macular degeneration (AMD) is a leading cause of irreversible blindness in the elderly throughout the world. AMD is attributed to a complex interaction of genetic and environmental factors. It is characterized by degeneration involving the retinal photoreceptors, retinal pigment epithelium (RPE), and Bruch's membrane, as well as alterations in choroidal capillaries. Aging and age-associated degenerative diseases, such as AMD, are intimately associated with decreased levels of tissue oxygenation and hypoxia that may induce accumulation of detrimental RPE-associated deposits, inflammation and neovascularization processes in retina. Hypoxia-inducible factor (HIF) is the master regulator for hypoxia-induced cellular adaptation that is involved in NF-kappaB signaling and the autophagic protein clearance system. In this review, we discuss role of HIF in AMD pathology and as a possible therapeutic target.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Age Factors
  • Aging / genetics
  • Cell Hypoxia
  • Humans
  • Hypoxia-Inducible Factor 1, alpha Subunit / metabolism*
  • Macular Degeneration / etiology
  • Macular Degeneration / genetics
  • Macular Degeneration / pathology*
  • NF-kappa B / physiology
  • Retinal Pigment Epithelium / metabolism
  • Retinal Pigment Epithelium / pathology*

Substances

  • Hypoxia-Inducible Factor 1, alpha Subunit
  • NF-kappa B