Encyclopedia of Cancer

Living Edition
| Editors: Manfred Schwab

Hypoxia-Inducible Factor-1

Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27841-9_2928-2

Synonyms

Definition

Hypoxia is widespread within most solid tumors. This stress situation is sufficient to activate the key transcription factor, hypoxia inducible factor (HIF)-1 that mediates the activation of the survival pathways in cancer cells. HIF-1 can also be induced by oxygen-independent genetic deregulations that activate a variety of oncogene signaling pathways or inactivate tumor suppressors. Increased tumor HIF-1 is often correlated with increased angiogenesis, malignant cancer progression, poor patient prognosis, and resistance to cancer therapies. HIF-1 is a proangiogenic transcription factor that interacts with a specific promoter sequence, called hypoxia response elements (HREs) in the regulatory region of the target DNA to stimulate transcription of multiple angiogenic factors including vascular endothelial growth factor (VEGF). In addition, HIF-1-targeted genes also include genes involved in cell proliferation, survival, invasion, and drug resistance. Due to...

Keywords

Vascular Endothelial Growth Factor Hypoxia Inducible Factor Vascular Endothelial Growth Factor Production Heat Shock Protein HSP90 Hypoxia Responsive Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Department of Hematology/OncologyWinship Cancer Institute, Emory UniversityAtlantaUSA