Vascular endothelial growth factor and its soluble receptor in benign and malignant ovarian tumors

Paolo Giovanni Artini, Maria Ruggiero, Ruggiero M, María Ruggiero, Patrizia Monteleone, P. Monteleone, Angelo Carpi, Carpi A, Francesca Cristello, Cristello F, Vito Cela, Cela V, Genazzani AR, Andrea Riccardo Genazzani
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2007 · vol. 62(6) , pp. 373–377 · doi:10.1016/j.biopha.2007.10.005 · PMID:18037256 · W2086071664
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This study investigated the presence and levels of vascular endothelial growth factor and its soluble receptor in benign and malignant ovarian tumors.

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Abstract

An imbalance between pro-angiogenic and anti-angiogenic factors is hypothesized in the pathogenesis of ovarian cystic disease. The aim of the following study was to explore the possible role of free vascular endothelial growth factor receptor 1 (sVEGFR-1), a soluble regulator of vascular endothelial growth factor (VEGF) action, in ovarian cystoadenoma, endometriomata and cystoadenocarcinoma. Forty-eight women, of whom fourteen had ovarian serous cysts, twenty-eight had stage III-IV ovarian endometriomata, and six had stage IIIB-IIIC ovarian carcinoma, were included. Sampling of serum, peritoneal and ovarian cystic fluids and of tumor tissue was performed before, during and following surgery, respectively. Levels of VEGF and sVEGFR-1 were measured in serum, peritoneal and cystic fluid. VEGF and sVEGFR-1 expression was evaluated in tumor tissue. There were no differences in serum VEGF and sVEGFR-1 levels nor in VEGF/VEGFR-1 ratio between study groups. Peritoneal fluid VEGF levels were higher in cystoadenocarcinoma patients than in endometriosis and in cystoadenoma patients, while sVEGFR-1 peritoneal fluid concentrations were significantly higher only in endometriosis-affected women. VEGF/VEGFR-1 ratio was highest in the peritoneal fluid of cancer patients with respect to the other two groups of women. Cystic fluid VEGF and VEGFR-1 concentrations were higher in endometriomata and in cystoadenocarcinomas than in cystadenomas but the VEGF/VEGFR-1 ratio was highest in cancer patients. Western blot evidenced a marked expression of VEGF and soluble VEGFR-1 in endometriosis tissue with respect to benign cyst tissue but a lower expression of both molecules, contrary to that expected, in cancer tissue. In conclusion, all in all, our data indicate that an excess of local VEGF with respect to its soluble receptor VEGFR-1 may be a key factor in the onset and maintenance of pathological neo-angiogenesis in ovarian cyst formation.

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Condition tags

endometriosis

MeSH descriptors

Ovarian Diseases Ovarian Neoplasms Vascular Endothelial Growth Factor A Vascular Endothelial Growth Factor Receptor-1 Adult Aged Ascitic Fluid Ascitic Fluid Cystadenocarcinoma Cystadenocarcinoma Cystadenoma Cystadenoma Cyst Fluid Cyst Fluid Endometriosis Endometriosis Female Gene Expression Humans Middle Aged

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