The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
HIF-1: the knowns and unknowns of hypoxia sensing.
Open accessAbstract
Hypoxia-inducible factor-1 (HIF-1) is a transcriptional activator that functions as a master regulator of cellular and systemic oxygen homeostasis. It consists of two constitutively produced subunits: HIF-1alpha and HIF-1beta. Under normoxic conditions HIF-1alpha undergoes hydroxylation at specific prolyl residues which leads to an immediate ubiquitination and subsequent proteasomal degradation of the alpha subunit. Additionally, hydroxylation of an asparaginyl residue blocks the transcriptional activity of HIF-1 due to inhibition of its interaction with co-activators. In contrast, under hypoxic conditions, abolition of prolyl hydroxylation results in HIF-1alpha stabilization, whereas the lack of asparaginyl hydroxylation allows the transcriptional activity. Additionally, the transcriptional activity may be modulated by phosphorylation or redox modification of HIF-1. Despite its name, HIF-1 is induced not only in response to reduced oxygen availability but also by other stimulants, such as nitric oxide, various growth factors, or direct inhibitors of prolyl and asparaginyl hydroxylases. Therefore, it seems to be a crucial transcription factor elicited by a wide range of stresses such as impaired oxygenation, inflammation, energy deprivation, or intensive proliferation. However, the mechanisms of normoxic activation, as well as of oxygen sensing, are not yet fully known. Further understanding of the processes that control HIF-1 activity will be crucial for the development of new diagnostic and therapeutic strategies.
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Cites
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Cited by
Integration of Oxygen Signaling at the Consensus HRE
Wenger, R. H., Stiehl, D. P., & Camenisch, G. (2005) · Science's STKE · doi:10.1126/stke.3062005re12 · Cited by 1,032
HIF-1 and HIF-2 Transcription Factors - Similar but Not Identical
Loboda, A., Jozkowicz, A., & Dulak, J. (2010) · Molecules and Cells · doi:10.1007/s10059-010-0067-2 · Cited by 477
Self-citationWang, B., Wood, I. S., & Trayhurn, P. (2007) · Pflügers Archiv - European Journal of Physiology · doi:10.1007/s00424-007-0301-8 · Cited by 392
Mammalian Per-Arnt-Sim Proteins in Environmental Adaptation
McIntosh, B. E., Hogenesch, J. B., & Bradfield, C. A. (2010) · Annual Review of Physiology · doi:10.1146/annurev-physiol-021909-135922 · Cited by 352
Hypoxia-inducible factors and diabetes
Gunton, J. E. (2020) · Journal of Clinical Investigation · doi:10.1172/jci137556 · Cited by 159
Metadata
- Authors
- Zagórska, A., & Dulak, J.
- Venue
- Acta Biochimica Polonica
- Publisher
- Frontiers Media SA
- Published
- 2004-09-30
- Volume
- 51
- Issue
- 3
- Pages
- 563-585
- ISSN
- 0001-527X (ISSN-L)
- 1734-154X
- OpenAlex
- W2056682385
- Cited by
- 192
- References
- 28
- FWCI
- 3.43
- Type
- journal article
- Language
- en
- Open access
- gold
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