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Diagnostic Pathology
Published in: Diagnostic Pathology 1/2013

Open Access 01-12-2013 | Research

The distinct expression patterns of claudin-2, -6, and −11 between human gastric neoplasms and adjacent non-neoplastic tissues

Authors: Zhe Lin, Xiaowei Zhang, Zhijing Liu, Qihui Liu, Liping Wang, Yan Lu, Yuanyuan Liu, Min Wang, Minlan Yang, Xiangshu Jin, Chengshi Quan

Published in: Diagnostic Pathology | Issue 1/2013

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Abstract

Background

Cancers have a multifactorial etiology a part of which is genetic. Recent data indicate that expression of the tight junction claudin proteins is involved in the etiology and progression of cancer.

Methods

To explore the correlations of the tight junction proteins claudin-2,-6, and −11 in the pathogenesis and clinical behavior of gastric cancer, 40 gastric cancer tissues and 28 samples of non-neoplastic tissues adjacent to the tumors were examined for expression of claudin-2,-6, and −11 by streptavidin-perosidase immunohistochemical staining method.

Results

The positive expression rates of claudin-2 in gastric cancer tissues and adjacent tissues were 25% and 68% respectively (P < 0.001). The positive expression rates of claudin-6 in gastric cancer tissues and adjacent tissues were 55% and 79% respectively (P = 0.045 < 0.05). In contrast, the positive expression rates of claudin-11 in gastric cancer tissues and gastric cancer adjacent tissues were 80% and 46% (P = 0.004 < 0.01). Thus in our study, the expression of claudin-2, and claudin-6 was down regulated in gastric cancer tissue while the expression of claudin-11 was up regulated. Correlations between claudin expression and clinical behavior were not observed.

Conclusion

Our study provides the first evidence that claudin-2,-6, and −11 protein expression varies between human gastric cancers and adjacent non-neoplastic tissues.

Virtual slides

The virtual slide(s) for this article can be found here:http://​www.​diagnosticpathol​ogy.​diagnomx.​eu/​vs/​5470513569630744​
Appendix
Available only for authorised users
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Metadata
Title
The distinct expression patterns of claudin-2, -6, and −11 between human gastric neoplasms and adjacent non-neoplastic tissues
Authors
Zhe Lin
Xiaowei Zhang
Zhijing Liu
Qihui Liu
Liping Wang
Yan Lu
Yuanyuan Liu
Min Wang
Minlan Yang
Xiangshu Jin
Chengshi Quan
Publication date
01-12-2013
Publisher
BioMed Central
Published in
Diagnostic Pathology / Issue 1/2013
Electronic ISSN: 1746-1596
DOI
https://doi.org/10.1186/1746-1596-8-133

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