Abstract
The hypoxia-inducible factor HIF-1 has been shown to be mandatory for the cellular adaptation to hypoxia. In addition, evidence has been provided that HIF-1 can mediate various stress responses and that it may play an important role under inflammatory conditions even independently of hypoxia. HIF-1 is a heterodimer consisting of an α-subunit which is subject to tight regulation, and a β-subunit, also termed ARNT, which appears to be constitutively expressed. In addition to the complex network controlling the cellular content of HIF-1α at the level of protein stability, recent evidence showed that HIF-1α levels can also be regulated at the mRNA level. In fact, transcriptional regulatory networks seem to be an additional way of controlling HIF-1α levels and may open new therapeutic options to modulate HIF-1α also under non-hypoxic conditions.
Keywords: HIF, nuclear factor kappa b, transcription, promoter, reactive oxygen species, hypoxia
Current Pharmaceutical Design
Title: Regulation of HIF-1α at the Transcriptional Level
Volume: 15 Issue: 33
Author(s): Agnes Gorlach
Affiliation:
Keywords: HIF, nuclear factor kappa b, transcription, promoter, reactive oxygen species, hypoxia
Abstract: The hypoxia-inducible factor HIF-1 has been shown to be mandatory for the cellular adaptation to hypoxia. In addition, evidence has been provided that HIF-1 can mediate various stress responses and that it may play an important role under inflammatory conditions even independently of hypoxia. HIF-1 is a heterodimer consisting of an α-subunit which is subject to tight regulation, and a β-subunit, also termed ARNT, which appears to be constitutively expressed. In addition to the complex network controlling the cellular content of HIF-1α at the level of protein stability, recent evidence showed that HIF-1α levels can also be regulated at the mRNA level. In fact, transcriptional regulatory networks seem to be an additional way of controlling HIF-1α levels and may open new therapeutic options to modulate HIF-1α also under non-hypoxic conditions.
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Cite this article as:
Gorlach Agnes, Regulation of HIF-1α at the Transcriptional Level, Current Pharmaceutical Design 2009; 15 (33) . https://dx.doi.org/10.2174/138161209789649420
DOI https://dx.doi.org/10.2174/138161209789649420 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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