Reciprocal relationship between expression of hypoxia inducible factor 1alpha (HIF-1alpha) and the pro-apoptotic protein bid in ex vivo colorectal cancer.
AuthorsSeenath, M M
Roberts, Darren L
Saunders, Mark P
O'Dwyer, Sarah T
Stratford, Ian J
Renehan, Andrew G
AffiliationClinical and Experimental Pharmacology, Paterson Institute of Cancer Research, Manchester, UK.
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AbstractHypoxia inducible factor 1 (HIF-1) represses the transcription of pro-apoptotic bid in colorectal cancer cells in vitro. To assess the clinical relevance of this observation, HIF-1alpha and Bid were assessed in serial sections of 39 human colorectal adenocarcinomas by immunohistochemistry. In high HIF-1alpha nuclear-positive cell subpopulations, there was a significant reduction in Bid expression (ANOVA, P=0.04). Given the role of Bid in drug-induced apoptosis, these data add impetus to strategies targeting HIF-1 for therapeutic gain.
CitationReciprocal relationship between expression of hypoxia inducible factor 1alpha (HIF-1alpha) and the pro-apoptotic protein bid in ex vivo colorectal cancer. 2008, 99 (3):459-63 Br. J. Cancer
JournalBritish Journal of Cancer