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Annu Rev Pharmacol Toxicol. 2010;50:323-54. doi: 10.1146/annurev.pharmtox.010909.105600.

Mechanisms of cell protection by heme oxygenase-1.

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  • 1Instituto Gulbenkian de Ciência, Oeiras, Portugal.

Abstract

Heme oxygenases (HO) catabolize free heme, that is, iron (Fe) protoporphyrin (IX), into equimolar amounts of Fe(2+), carbon monoxide (CO), and biliverdin. The stress-responsive HO-1 isoenzyme affords protection against programmed cell death. The mechanism underlying this cytoprotective effect relies on the ability of HO-1 to catabolize free heme and prevent it from sensitizing cells to undergo programmed cell death. This cytoprotective effect inhibits the pathogenesis of a variety of immune-mediated inflammatory diseases.

PMID:
20055707
[PubMed - indexed for MEDLINE]
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