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Deprecated: Implicit conversion from float 276.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Br+J+Cancer 2014 ; 111 (7): 1363-72 Nephropedia Template TP
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Prognostic significance of epithelial?mesenchymal transition-related markers in extrahepatic cholangiocarcinoma: comprehensive immunohistochemical study using a tissue microarray #MMPMID25077440
Nitta T; Mitsuhashi T; Hatanaka Y; Miyamoto M; Oba K; Tsuchikawa T; Suzuki Y; Hatanaka KC; Hirano S; Matsuno Y
Br J Cancer 2014[Sep]; 111 (7): 1363-72 PMID25077440show ga
Background:: Epithelial?mesenchymal transition (EMT) is characterised by the loss of cell-to-cell adhesion and gaining of mesenchymal phenotypes. Epithelial?mesenchymal transition is proposed to occur in various developmental processes and cancer progression. ?Cadherin switch', a process in which cells shift to express different isoforms of the cadherin transmembrane protein and usually refers to a switch from the expression of E-cadherin to N-cadherin, is one aspect of EMT and can have a profound effect on tumour invasion/metastasis. The aim of this study was to investigate the clinicopathological significance of EMT-related proteins and cadherin switch in extrahepatic cholangiocarcinoma (EHCC). Methods:: We investigated the association between altered expression of 12 EMT-related proteins and clinical outcomes in patients with EHCC (n=117) using immunohistochemistry on tissue microarrays. Results:: Univariate and multivariate analyses revealed that, in addition to N classification (P=0.0420), the expression of E-cadherin (P=0.0208), N-cadherin (P=0.0038) and S100A4 (P=0.0157) was each an independent and a significant prognostic factor. We also demonstrated that cadherin switch was independently associated with poor prognosis (P=0.0143) in patients with EHCC. Conclusions:: These results may provide novel information for selection of patients with EHCC who require adjuvant therapy and strict surveillance.