alexa Expression patterns of dysadherin and E-cadherin in lymph node metastases of colorectal carcinoma.


Diagnostic Pathology: Open Access

Author(s): Batistatou A, Charalabopoulos AK, Scopa CD, Nakanishi Y, Kappas A,

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Abstract Reduction/loss of E-cadherin is associated with the development and progression of many epithelial tumors, while in a limited number of neoplasms, E-cadherin is re-expressed in metastases. Dysadherin, recently characterized by members of our research team, has an anti-cell-cell adhesion function and downregulates E-cadherin in a posttranscriptional manner. Colorectal cancer (CRC) is one of the most common tumors in the developed world, and lymph node metastases are harbingers of aggressive behavior. The aim of the present study was to examine the dysadherin and E-cadherin expression patterns in lymph node metastases vs primary CRC. Dysadherin and E-cadherin expression was examined immunohistochemically in 78 patients with CRC, Dukes' stage C in the primary tumor and in one lymph node metastasis. Dysadherin was expressed in 42\% while E-cadherin immunoreactivity was reduced in 45\% of primary tumors. In lymph nodes, 33 and 81\% of metastatic tumors were positive for dysadherin and E-cadherin, respectively. Dysadherin expression was not correlated with E-cadherin expression in the primary tumor with a reverse correlation evident in the lymph node metastases. Our results suggest that different mechanisms govern E-cadherin expression in the primary tumor and the corresponding lymph node metastases. This article was published in Virchows Arch and referenced in Diagnostic Pathology: Open Access

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