Article ID Journal Published Year Pages File Type
2115407 Cancer Letters 2007 11 Pages PDF
Abstract

There is much controversy in the literature regarding the role of p53 status response on hypoxia inducible factor (HIF) signaling in response to chronic relative hypoxia (CRH). The goal of this paper was to methodically examine this response in isogenically matched tumor cells. We report that p53-mutant (MUT) cells, versus p53-wild-type (WT) cells, showed decreased apoptosis, increased cell proliferation with higher basal HIF-1α levels in response to CRH. In addition, we found increased HIF-mediated transactivation and increased VEGF release with decreased HIF-1α/p53 and HIF-1α/MDM-2 partnering in p53-MUT versus p53-WT cells in response to CRH.

Related Topics
Life Sciences Biochemistry, Genetics and Molecular Biology Cancer Research
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