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Cancer Lett. 2005 Jan 10;217(1):73-86.

The angiogenic factors CXCL8 and VEGF in breast cancer: regulation by an array of pro-malignancy factors.

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Department of Cell Research and Immunology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel.


The regulation of secretion of the angiogenic factors CXCL8 and Vascular Endothelial Growth Factors (VEGF) was determined in breast tumor cells and in monocytic cells (as host cells that contribute to breast cancer). CXCL8 secretion, and partly the secretion of VEGF, were up-regulated in monocytic cells, but not in breast tumor cells, by the CC chemokines CCL5 and CCL2. EGF potently up-regulated CXCL8 secretion by breast tumor cells, and its effect was promoted by a consecutive treatment of the cells by estrogen and progesterone. These findings provide evidence for a complex set of pro-malignancy factors that may control the expression of angiogenic mediators at breast tumor sites.

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