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Recent Patents on Inflammation & Allergy Drug Discovery

Editor-in-Chief

ISSN (Print): 1872-213X
ISSN (Online): 2212-2710

Targeting Hypoxia-Inducible Factor-1 (HIF-1) Signaling in Therapeutics: Implications for the Treatment of Inflammatory Bowel Disease

Author(s): Simon A. Hirota, Paul L. Beck and Justin A. MacDonald

Volume 3, Issue 1, 2009

Page: [1 - 16] Pages: 16

DOI: 10.2174/187221309787158434

Price: $65

Abstract

In response to hypoxia, adaptive hypoxia-inducible factor-1 (HIF-1) signaling events are activated to increase oxygen transport, anaerobic energy production and protective pathways to minimize ischemic tissue damage. Although the activation and subsequent induction of gene transcription by HIF-1 is normally associated with hypoxia, it is now established that HIF-1 signaling can be triggered under inflammatory conditions. HIF-1 has been implicated in a number of inflammatory diseases including rheumatoid arthritis, allergic asthma, psoriasis and inflammatory bowel disease (IBD). In the gastrointestinal tract, HIF-1-regulated gene products, such as vascular endothelial growth factor, intestinal trefoil factor and CD73, have been shown to provide protection in animal models of intestinal inflammation. Given the importance of HIF-1 signaling in the aforementioned diseases, there exists considerable interest in the development of methods to modulate HIF-1 expression as well as down-stream signaling events. This review examines HIF-1 signaling with a special focus on the gastrointestinal tract. The patents pertaining to the modulation of HIF-1 signaling are summarized, and their relevance to the treatment of inflammatory bowel disease is discussed.

Keywords: Hypoxia-inducible factor, inflammatory bowel disease, inflammation, colitis, Crohn's disease, prolyl hydroxylase, intestinal trefoil factor, vascular endothelial growth factor, CD73

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