The distinct expression patterns of claudin-10, -14, -17 and E-cadherin between adjacent non-neoplastic tissues and gastric cancer tissues

Diagnostic Pathology

Guanjun Wang²  Haiming Wang¹  Wei Li²  Man Gao² 

[1] Urinary surgery department, the First Hospital of Jilin University, Changchun, Jilin, China;Cancer Center, the First Hospital of Jilin University, Changchun, Jilin, China

关键词: Immunohistochemistry;    E-cadherin;    Claudin-17;    Claudin-14;    Claudin-10;    Tight junction;    Cell adhesion;    Gastric cancer;   

Others  :  1228640
DOI  :  10.1186/1746-1596-8-205

 received in 2013-10-22, accepted in 2013-11-28,  发布年份 2013

【 摘 要 】

Background

Recent data indicate that the cell adhesion proteins are abnormally regulated in several human cancers and the expression of the cell adhesion proteins E-cadherin and claudin proteins is involved in the etiology and progression of cancer. It is clear that these protein represent promising targets for cancer detection, diagnosis, and therapy.

Methods

To explore the expression distinction of the cell adhesion proteins claudin-10,-14,-17 and E-cadherin in the adjacent non-neoplastic tissues and gastric cancer tissues, 50 gastric cancer tissues and 50 samples of adjacent non-neoplastic tissues adjacent to the tumors were examined for expression of claudin-10,-14,-17 and E-cadherin by streptavidin-perosidase immunohistochemical staining method.

Results

The positive expression rates of E-cadherin in gastric cancer tissues and adjacent non-neoplastic tissues were 32% and 74% respectively (P < 0.01). The positive expression rates of claudin-10 in gastric cancer tissues and adjacent non-neoplastic tissues were 24% and 72% respectively (P < 0.01). The positive expression rates of claudin-17 in gastric cancer tissues and adjacent non-neoplastic tissues were 18% and 70% (P < 0.01). In contrast, the positive expression rates of claudin-14 in gastric cancer tissues and adjacent non-neoplastic tissues were 58% and 24% respectively (P = 0.015 < 0.05) Thus in our study, the expression of E-cadherin, claudin-10, and claudin-17 was down-regulated in gastric cancer tissue while the expression of claudin-14 was up-regulated. Correlations between claudins and E-cadherin expression with lymphatic metastasis were observed.

Conclusion

Our study reveals that the expression of E-cadherin, claudin-10, and claudin-17 were down-regulated in gastric cancer tissue while the expression of claudin-14 was up-regulated and correlation between claudins and E-cadherin expression with lymphatic metastasis were observed.

Virtual slides

The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1475928069111326 webcite.

【 授权许可】

   
2013 Gao et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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