PMID: 16501835Feb 28, 2006Paper

VEGF expression is associated with negative estrogen receptor status in patients with breast cancer

International Journal of Surgical Pathology
Dora FuckarNives Jonjić

Abstract

The aim of this study was to analyze the association between vascular endothelial growth factor (VEGF) expression on tumor cells and other clinicopathologic parameters in breast cancer that could give additional information on its prognostic significance. Immunohistochemical analysis of expression of VEGF, estrogen (ER) and progesterone receptor (PR), HER-2/neu, and Ki67 was performed in 233 breast cancers. VEGF expression estimated semiquantitatively was correlated with all the above-mentioned parameters as well as with clinicopathologic characteristics of breast cancer such as menopausal status of patients, tumor size, histologic and nuclear grade, vascular invasion, and lymph node status. Most of the tumor cells and some stromal components expressed VEGF. A higher percentage of VEGF-positive tumor cells was present in premenopausal patients and in ER-negative tumors. In postmenopausal patients tumors with a higher expression of VEGF were associated not only with ER-negative but also with HER-2/neu-positive tumor cells. These ER-negative tumors were characterized by a higher proliferative activity. Angiogenic switch as well as proliferative activity of breast cancer cells probably are unfavorably dependent on estrogen activit...Continue Reading

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