The Relationship between Clinicopathological Features and Expression of Epithelial and Mesenchymal Markers in Spontaneous Canine Mammary Gland Tumors
Adenoma
0301 basic medicine
Epithelial-Mesenchymal Transition
Mammary Neoplasms, Animal
04 agricultural and veterinary sciences
Adenocarcinoma
6. Clean water
Gene Expression Regulation, Neoplastic
0403 veterinary science
03 medical and health sciences
Dogs
Biomarkers, Tumor
Animals
Surgery
Female
Dog Diseases
DOI:
10.1292/jvms.14-0104
Publication Date:
2014-06-16T13:41:54Z
AUTHORS (10)
ABSTRACT
It is known that epithelial mesenchymal transition (EMT) contributes to the acquisition of malignant property in human cancers. However, the role of EMT in canine tumors remains to be elucidated. To evaluate the correlation between expression levels of protein markers involved in EMT and clinicopathological characteristics in canine mammary gland tumors, immunohistochemistry using antibodies against ZO-1, E-cadherin, vimentin, N-cadherin and fibronectin was performed on 119 clinical tissue samples. Consequently, loss of ZO-1 and E-cadherin, and gain of vimentin and N-cadherin were more frequently observed in malignant tumors than in benign tumors. However, there was no correlation among expression of these molecules. Univariate and multivariate analysis identified that loss of E-cadherin independently had a low one-year survival rate (adjusted odds ratio: 2.3, P=0.02). These results suggested that EMT might relate to acquisition of malignancy, and additionally, E-cadherin was strongly correlated with malignant behavior in canine mammary gland tumors.
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