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Br J Surg. 2002 Feb;89(2):236-44.

Abnormal expression of E-cadherin and beta-catenin may be a molecular marker of submucosal invasion and lymph node metastasis in early gastric cancer.

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Department of Surgery, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.



Impaired expression of E-cadherin and alpha- and beta-catenin is frequently observed in several human cancers. The aim of this study was to examine immunohistochemical expression of these adhesion molecules, focusing on early gastric carcinomas, and to investigate differences between differentiated and undifferentiated gastric cancer at the early phase of carcinogenesis.


Immunohistochemical staining of E-cadherin and alpha- and beta-catenin was performed using specimens from 143 patients with early gastric cancer.


Abnormal E-cadherin and beta-catenin staining correlated with depth of tumour invasion in differentiated-type tumours. In contrast, abnormal staining was frequently found even in intramucosal carcinoma of undifferentiated-type tumours, suggesting an apparent difference in the onset of E-cadherin-catenin complex abnormality between the two cancer types. Absent staining of beta-catenin was associated with lymph node metastasis. Multivariate analysis revealed abnormal E-cadherin expression as an independent factor that correlated with submucosal invasion in early gastric cancer.


Abnormal E-cadherin expression is a possible marker of submucosal invasion in differentiated-type early gastric cancer and absent beta-catenin staining could be used as a predictor of lymph node metastasis in both types.

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