VEGFR-3 expression in breast cancer tissue is not restricted to lymphatic vessels

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Filho, AL (Author) Other; Martins, A (Author) Other; Costa, SMA (Author) Other; Fernando Schmitt (Author) FMUP

Journal

Title: Pathology Research and Practice

Vol. 201

Pages: 93-99

ISSN: 0344-0338

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 26 Citations

Scopus - 39 Citations

Other information

Authenticus ID: P-000-6D5

DOI: 10.1016/j.prp.2004.11.008

Abstract (EN): We examined the immunohistochemical reactivity for vascular endothelial growth factor receptor 3 (VEGFR-3), a protein playing an important role in lymphangiogenesis, in breast cancer. A retrospective series of 77 invasive ductal breast carcinomas was investigated. The relationship between VEGFP-3 expression and clinicopathologic parameters was examined for statistical significance using Pearson's chi-square (x(2)) test and Fisher's exact test (when n < 5). Threshold for significance was p < 0.05. Patient age ranged from 31 to 77 years (mean: 55 years). The VEGFR-3 immunoreactivity was as follows: 5 cases were negative (6.5%)., 35 + (45.4%), 27 + + (35.1%), and 10+++ (13.0%). Reactions were positive for both lymphatic and blood vessels in several cases. VEGFR-3-positive reactions were more frequent in the tumor periphery than within the tumor. Immunoreactivity was also observed in myoepithelial cells surrounding both normal ducts and ducts with ductal carcinoma in situ. Statistical analysis of VEGFR-3 reactions was not significantly related to node status, microvessel density, and tumor grade. Ploidy showed a tendency towards significance (p = 0.063); however, owing to the limited number of cases, statistical significance was not reached. VEGFR-3 lacks lymphatic vessel specificity and is also expressed in blood vessels, myoepithelial cells, and neoplastic cells.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7