|Table of Contents|

Expression and clinical significance of iNOS in breast cancer

Journal Of Modern Oncology[ISSN:1672-4992/CN:61-1415/R]

Issue:
2018 01
Page:
52-56
Research Field:
Publishing date:

Info

Title:
Expression and clinical significance of iNOS in breast cancer
Author(s):
Wang Guanghui1Chen Nan2Wang Huxia2Sheng Wei3
1.Department of General Surgery;3.Breast Disease Center,The First Affiliated Hospital of Xi'an Jiaotong University,Shaanxi Xi'an 710061,China;2.Breast Disease Center,Shaanxi Province Tumor Hospital,Shaanxi Xi'an 710061,China.
Keywords:
atypical hyperplasia in breast cancerductal carcinoma in situinvasive carcinomaiNOSprognosis
PACS:
R737.9
DOI:
10.3969/j.issn.1672-4992.2018.01.014
Abstract:
Objective:To study the expression of iNOS in normal breast tissue,atypical hyperplasia,ductal carcinoma in situ and invasive carcinoma tissues,and analyze the association between iNOS expression and pathological features and clinical outcome in breast cancer.Methods:Expression of iNOS was detected in 20 normal breast tissues,28 atypical hyperplasia,40 ductal carcinoma in situ (DCIS) and 80 invasive carcinoma tissues by immunohistochemistry (IHC) technique.We also analyzed the association between the positive staining percent of iNOS and the clinical and pathology features such as tumor diameter and lymph node status in 80 cases of invasive breast cancer.Results:iNOS could not be detected in normal breast tissue.The positive staining percent of iNOS in atypical hyperplasia,DCIS and invasive breast cancer were 25.0%,52.5% and 78.8%,respectively,with a statistical difference between any two groups of them (all P<0.05).Higher positive staining percent of iNOS was observed in advanced TNM stage and larger tumor diameter.The 5-year disease free survival rate of iNOS positive group (61.9%) was significantly lower than the negative group (84.2%) in patients with ductal carcinoma in situ (P<0.05).While there was no statistical difference of 5-year disease free survival rate between iNOS positive and negative groups in patients with invasive carcinoma (P>0.05).Conclusion:High expression of iNOS could be detected in atypical hyperplasia tissues.The iNOS expression levels were correlated with tumor stage and diameters,and associated with clinical prognosis.Thus,iNOS might serve as a potential diagnostic and prognostic biomarker for breast cancer patients.

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Memo

Memo:
陕西省自然科学基金(编号:2014D14)
Last Update: 2017-11-30