PMID: 16617567Apr 19, 2006Paper

Changes in the circulating plasma levels of VEGF and VEGF-D after adjuvant chemotherapy in patients with breast cancer and 1 to 3 positive lymph nodes

Anticancer Research
Sherko KümmelJens-Uwe Blohmer

Abstract

The goal of the present study was to investigate the changes in concentration of the important lymph-angiogenesis factors vascular endothelium-derived growth factor (VEGF) and VEGF-D under adjuvant chemotherapy. The blood plasma of a total of 142 patients with breast carcinoma and with 1 to 3 affected lymph nodes was investigated, using the quantitative sandwich enzyme immunoassay technique, prior to and following chemotherapy, within the framework of a randomized phase III study: the patients received either conventional or dose-intensified chemotherapy. In general, there was a significant reduction in VEGF levels after chemotherapy only in patients with large tumors (T3) (p = 0.043). There was also an almost significant reduction in patients with an overexpression of c-erbB-2 (Dako Score +3, p = 0.052). In contrast, the clearest reduction in VEGF-D occurred in patients with a positive hormone receptor status (p = 0.04) or in patients with a low expression of c-erbB-2 (Dako Score +1, p = 0.05). A significant effect of chemotherapy on VEGF-D was determined only in patients who had a baseline level that was above the normal (conventionel treatment p = 0.005; dose-intensified treatment p = 0.004). Both VEGF and VEGF-D levels chan...Continue Reading

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