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Cancer Biol Ther. 2004 Jul;3(7):608-11. Epub 2004 Jul 29.

Exploitation of the HIF axis for cancer therapy.

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Winship Cancer Institute, Emory University, Atlanta, Georgia 30322, USA.


Hypoxia, a reduction in the normal level of tissue oxygen tension, occurs in most solid tumors in regions where tumor growth outstrips new blood vessel formation. Hypoxic cancer cells are resistant to both chemotherapy and radiation and are a major reason for the failure of cancer therapy. The cellular response to hypoxia is mediated through the hypoxia-inducible transcription factor-1 (HIF-1). HIF-1 is critically important for tumor progression and angiogenesis. In fact, HIF-1alpha is overexpressed in 70% of human cancers and their metastases. Thus, agents that inhibit angiogenesis and tumor growth via inhibition of HIF-1 represent an attractive yet unexplored new modality for cancer treatment. We will overview inhibitors of HIF-1alpha and will discuss their potential use for cancer therapy.

[Indexed for MEDLINE]

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