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Review
. 2008 May 23;30(4):393-402.
doi: 10.1016/j.molcel.2008.04.009.

Oxygen sensing by metazoans: the central role of the HIF hydroxylase pathway

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Free article
Review

Oxygen sensing by metazoans: the central role of the HIF hydroxylase pathway

William G Kaelin Jr et al. Mol Cell. .
Free article

Abstract

HIF plays a central role in the transcriptional response to changes in oxygen availability. The PHD family of oxygen-dependent prolyl hydroxylases plays a pivotal role in regulating HIF stability. The biochemical properties of these enzymes make them well suited to act as oxygen sensors. They also respond to other intracellular signals, including reactive oxygen species, nitric oxide, and certain metabolites, that can modulate the hypoxic response. HIF transcriptional activity is further tuned by FIH1-mediated asparagine hydroxylation. HIF affects signaling pathways that influence development, metabolism, inflammation, and integrative physiology. Accordingly, HIF-modulatory drugs are now being developed for diverse diseases.

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