The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.
Mitochondria and cellular oxygen sensing in the HIF pathway
Abstract
Mitochondrial respiration is responsible for more than 90% of oxygen consumption in humans. Cells utilize oxygen as the final electron acceptor in the aerobic metabolism of glucose to generate ATP which fuels most active cellular processes. Consequently, a drop in tissue oxygen levels to the point where oxygen demand exceeds supply (termed hypoxia) leads rapidly to metabolic crisis and represents a severe threat to ongoing physiological function and ultimately, viability. Because of the central role of oxygen in metabolism, it is perhaps not surprising that we have evolved an efficient and rapid molecular response system which senses hypoxia in cells, leading to the induction of an array of adaptive genes which facilitate increased oxygen supply and support anaerobic ATP generation. This response is governed by HIF (hypoxia-inducible factor). The oxygen sensitivity of this pathway is conferred by a family of hydroxylases which repress HIF activity in normoxia allowing its rapid activation in hypoxia. Because of its importance in a diverse range of disease states, the mechanism by which cells sense hypoxia and transduce a signal to the HIF pathway is an area of intense investigation. Inhibition of mitochondrial function reverses hypoxia-induced HIF leading to speculation of a role for mitochondria in cellular oxygen sensing. However, the nature of the signal between mitochondria and oxygen-sensing hydroxylase enzymes has remained controversial. In the present review, two models of the role for mitochondria in oxygen sensing will be discussed and recent evidence will be presented which raises the possibility that these two models which implicate ROS (reactive oxygen species) and oxygen redistribution respectively may complement each other and facilitate rapid and dynamic activation of the HIF pathway in hypoxia.
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“There are close interactions between mitochondria and HIF signaling that operate on a number of levels, not least because mitochondria and the PHDs compete for molecular oxygen (523).”
From Placental Origins of Chronic Disease (2016) · cites this paper as [523]
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Placental Origins of Chronic Disease
Burton, G. J., Fowden, A. L., & Thornburg, K. L. (2016) · Physiological Reviews · doi:10.1152/physrev.00029.2015 · Cited by 717
Hypoxia and mitochondrial oxidative metabolism
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Metadata
- Authors
- Taylor, C. T.
- Affiliations
- University College Dublin (IE)
- Corresponding author
- Taylor, Cormac T.
- ORCID
- Taylor, Cormac T.
- Venue
- Biochemical Journal
- Publisher
- Portland Press Ltd.
- Published
- 2007-12-11
- Volume
- 409
- Issue
- 1
- Pages
- 19-26
- ISSN
- 0264-6021 (ISSN-L)
- 1470-8728
- OpenAlex
- W2087746800
- Cited by
- 298
- References
- 48
- Citations by year
- 2026: 8 · 2025: 8 · 2024: 15 · 2023: 11 · 2022: 13 · 2021: 9 · 2020: 14 · 2019: 11 · 2018: 7 · 2017: 14 · 2016: 17 · 2015: 21 · 2014: 19 · 2013: 18 · 2012: 19
- FWCI
- 2.01
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Biochemical Journal (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
- Keywords
- hypoxia-inducible factor, cellular oxygen sensing, mitochondrial respiration, hypoxia, reactive oxygen species, oxygen redistribution, mitochondrial signaling, HIF activation, mitochondrial dysfunction
- MeSH terms
- Adenylate Kinase, Animals, Hypoxia, Glycolysis, Humans, Kinetics, Mitochondria, Models, Biological, Oxygen, Oxygen Consumption, Phosphorylation, Reactive Oxygen Species, Hypoxia-Inducible Factor 1, alpha Subunit
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