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Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery
BACKGROUND: Follicle-stimulating hormone receptor (FSHR) is expressed on the endothelial surface of blood vessels associated with solid tumor periphery, where angiogenesis is known to occur. The correlation between FSHR expression and formation of new peritumoral vessels has not been previously inve...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4321709/ https://www.ncbi.nlm.nih.gov/pubmed/25652007 http://dx.doi.org/10.1186/s13046-015-0128-7 |
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author | Planeix, François Siraj, Mohammad-Ahsan Bidard, François-Clément Robin, Blaise Pichon, Christophe Sastre-Garau, Xavier Antoine, Martine Ghinea, Nicolae |
author_facet | Planeix, François Siraj, Mohammad-Ahsan Bidard, François-Clément Robin, Blaise Pichon, Christophe Sastre-Garau, Xavier Antoine, Martine Ghinea, Nicolae |
author_sort | Planeix, François |
collection | PubMed |
description | BACKGROUND: Follicle-stimulating hormone receptor (FSHR) is expressed on the endothelial surface of blood vessels associated with solid tumor periphery, where angiogenesis is known to occur. The correlation between FSHR expression and formation of new peritumoral vessels has not been previously investigated. METHODS: We used immunohistochemical techniques involving specific antibodies to detect FSHR and the endothelial markers (CD34, VEGFR2, and D2-40) in tissue samples from 83 patients with lymph node-negative, invasive breast cancer representing four main clinical treatment groups: HR+/HER2-, HR+/HER2+, HR-/HER2+ and triple-negative. RESULTS: The FSHR+ vessels were exclusively located at breast cancer periphery, in a layer that extended 2 mm into and 5 mm outside of the tumor. The percentage of blood vessels expressing FSHR reached a maximum of 100% at the demarcation line between the tumor and the normal tissue. Common among FSHR+ vessels, regardless of breast cancer type, were the high densities of arterioles and venules (6.4 ± 1.4 and 13.9 ± 2.1 vessels/mm(2), respectively). These values were 3-fold higher that those noticed for CD34+ arterioles and venules associated with normal breast tissue located at a distance greater than 10 mm outside the tumors. The average density of FSHR+ and CD34+ blood vessels as well as of D2-40+ lymphatic vessels did not differ significantly among breast cancer subgroups. FSHR+ vessels did not express VEGFR2. The endothelial FSHR expression correlated significantly with the peritumoral CD34+ vessels’ density (p < 0.001) and tumor size (p = 0.01). CONCLUSION: Endothelial FSHR expression in breast cancer is associated with vascular remodeling at tumor periphery. |
format | Online Article Text |
id | pubmed-4321709 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-43217092015-02-10 Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery Planeix, François Siraj, Mohammad-Ahsan Bidard, François-Clément Robin, Blaise Pichon, Christophe Sastre-Garau, Xavier Antoine, Martine Ghinea, Nicolae J Exp Clin Cancer Res Research BACKGROUND: Follicle-stimulating hormone receptor (FSHR) is expressed on the endothelial surface of blood vessels associated with solid tumor periphery, where angiogenesis is known to occur. The correlation between FSHR expression and formation of new peritumoral vessels has not been previously investigated. METHODS: We used immunohistochemical techniques involving specific antibodies to detect FSHR and the endothelial markers (CD34, VEGFR2, and D2-40) in tissue samples from 83 patients with lymph node-negative, invasive breast cancer representing four main clinical treatment groups: HR+/HER2-, HR+/HER2+, HR-/HER2+ and triple-negative. RESULTS: The FSHR+ vessels were exclusively located at breast cancer periphery, in a layer that extended 2 mm into and 5 mm outside of the tumor. The percentage of blood vessels expressing FSHR reached a maximum of 100% at the demarcation line between the tumor and the normal tissue. Common among FSHR+ vessels, regardless of breast cancer type, were the high densities of arterioles and venules (6.4 ± 1.4 and 13.9 ± 2.1 vessels/mm(2), respectively). These values were 3-fold higher that those noticed for CD34+ arterioles and venules associated with normal breast tissue located at a distance greater than 10 mm outside the tumors. The average density of FSHR+ and CD34+ blood vessels as well as of D2-40+ lymphatic vessels did not differ significantly among breast cancer subgroups. FSHR+ vessels did not express VEGFR2. The endothelial FSHR expression correlated significantly with the peritumoral CD34+ vessels’ density (p < 0.001) and tumor size (p = 0.01). CONCLUSION: Endothelial FSHR expression in breast cancer is associated with vascular remodeling at tumor periphery. BioMed Central 2015-02-05 /pmc/articles/PMC4321709/ /pubmed/25652007 http://dx.doi.org/10.1186/s13046-015-0128-7 Text en © Planeix et al.; licensee BioMed Central. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Planeix, François Siraj, Mohammad-Ahsan Bidard, François-Clément Robin, Blaise Pichon, Christophe Sastre-Garau, Xavier Antoine, Martine Ghinea, Nicolae Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
title | Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
title_full | Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
title_fullStr | Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
title_full_unstemmed | Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
title_short | Endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
title_sort | endothelial follicle-stimulating hormone receptor expression in invasive breast cancer and vascular remodeling at tumor periphery |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4321709/ https://www.ncbi.nlm.nih.gov/pubmed/25652007 http://dx.doi.org/10.1186/s13046-015-0128-7 |
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