Reciprocal relationship between expression of hypoxia inducible factor 1alpha (HIF-1alpha) and the pro-apoptotic protein bid in ex vivo colorectal cancer.

Autor: Seenath, M. M., Roberts, D., Cawthorne, C., Saunders, M. P., Armstrong, G. R., O'Dwyer, S. T., Stratford, I. J., Dive, C., Renehan, A. G.
Předmět:
Zdroj: British Journal of Cancer; 8/5/2008, Vol. 99 Issue 3, p459-463, 5p, 1 Color Photograph, 1 Graph
Abstrakt: Hypoxia 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index