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Updated: Jul 10, 2026
08:01
Induction of Hypoxia in Living Frog and Zebrafish Embryos
Published on: June 26, 2017
Hypoxia and gastrointestinal disease.
Cormac T Taylor1, Sean P Colgan
1UCD Conway Institute, School of Medicine and Medical Science, College of Life Sciences, University College Dublin, Belfield, Dublin 4, Ireland, cormac.taylor@ucd.ie
Journal of Molecular Medicine (Berlin, Germany)
|November 21, 2007
Summary
Hypoxia-inducible factor (HIF) protects the gut lining during inflammatory bowel disease (IBD). Inhibiting HIF prolyl hydroxylases shows therapeutic promise for IBD by activating this protective pathway.
Area of Science:
- Gastroenterology
- Molecular Biology
- Immunology
Background:
- The gastrointestinal mucosa faces unique oxygen gradients and immune challenges.
- Inflammatory bowel disease (IBD) involves epithelial barrier dysfunction and immune system activation.
- Hypoxia and activation of hypoxia-inducible factor (HIF) occur in inflamed intestinal mucosa during IBD.
Purpose of the Study:
- To review the role of epithelial HIF-1alpha in IBD.
- To examine the therapeutic potential of targeting HIF prolyl hydroxylases in IBD.
Main Methods:
- Utilizing conditional intestinal epithelial hif1a-null mice in IBD models.
- Employing pharmacologic activation of HIF via inhibition of HIF prolyl hydroxylases in colitis models.
Main Results:
- Epithelial HIF-1alpha demonstrates a protective role in murine IBD models.
- HIF activation induces barrier-protective genes in the epithelium.
- Inhibiting HIF prolyl hydroxylases shows significant protective effects in colitis models.
Conclusions:
- Epithelial HIF-1alpha plays a protective role in IBD.
- Targeting HIF prolyl hydroxylases represents a promising therapeutic strategy for intestinal mucosal inflammatory diseases.
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