Association of clinicopathologic parameters with the expression of inducible nitric oxide synthase and vascular endothelial growth factor in mucoepidermoid carcinoma

Oral Diseases (2011) 17, 590–596 Background:  The roles that inducible nitric oxide synthase (iNOS) and vascular endothelial growth factor (VEGF) play in tumorigenesis have been given special attention. In many tumors, their expression is upregulated. In addition, iNOS can stimulate the expression o...

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Published in:Oral diseases 2011-09, Vol.17 (6), p.590-596
Main Authors: Ke-xiong, Ou Yang, Jun, Liang, Zhi-quan, Huang
Format: Article
Language:English
Subjects:
Adult
Antigens, CD34 - analysis
Capillaries - pathology
Carcinoma, Mucoepidermoid - pathology
Carcinoma, Mucoepidermoid - secondary
Cell Differentiation
Dentistry
Female
Follow-Up Studies
Humans
inducible nitric oxide synthase
Male
Metastasis
Microvessels - pathology
Middle Aged
mucoepidermoid carcinoma
Neoplasm Recurrence, Local - pathology
Neoplasm Staging
Neovascularization, Pathologic - pathology
Nitric oxide
Nitric Oxide Synthase Type II - analysis
Retrospective Studies
Salivary Gland Neoplasms - pathology
Salivary Glands - anatomy & histology
Vascular endothelial growth factor
Vascular Endothelial Growth Factor A - analysis
Young Adult
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Summary:Oral Diseases (2011) 17, 590–596 Background:  The roles that inducible nitric oxide synthase (iNOS) and vascular endothelial growth factor (VEGF) play in tumorigenesis have been given special attention. In many tumors, their expression is upregulated. In addition, iNOS can stimulate the expression of VEGF. This study was carried out to investigate the expression of iNOS and VEGF as well as their relationship with angiogenesis and the clinicopathological characteristics of mucoepidermoid carcinoma (MEC). Method:  The expression of iNOS and VEGF was detected by Streptavidin–peroxidase immunohistochemistry, and microvessel density (MVD) was determined by anti‐CD34 antibody staining in 70 MEC cases and 40 normal salivary gland tissues (NSG). Follow‐up was performed on the 70 patients with MEC. Non‐parametric tests were performed for the comparison of iNOS and VEGF expression. Results:  The positive expression rates of iNOS and VEGF were successively enhanced in NSG, well‐differentiated and poorly differentiated MEC (P 
ISSN:1354-523X
1601-0825
DOI:10.1111/j.1601-0825.2011.01813.x