CCL20/CCR6 expression profile in pancreatic cancer

C. Rubie,V. O. Frick,P. Ghadjar,M. Wagner,Henner Grimm,Benjamin Vicinus,C. Justinger,S. Graeber,M. Schilling

Published 2010 in Journal of Translational Medicine

ABSTRACT

BackgroundCCL20 and its receptor CCR6 have been shown to play a role in the onset, development and metastatic spread of various gastrointestinal malignancies. In this study, the expression profile and clinical significance of the CCL20/CCR6 system in distinct benign, pre-malignant and malignant pancreatic tissues was investigated.MethodsUsing RealTime-PCR, enzyme-linked immunosorbent assay (ELISA), Western Blot and immunohistochemistry, we have analyzed the expression profile of CCL20/CCR6 in resection specimens from patients with chronic pancreatitis (CP) (n = 22), pancreatic cystadenoma (PA) (n = 11) and pancreatic carcinoma (PCA) (n = 25) as well as in the respective matched normal pancreatic tissues.ResultsCCL20 mRNA and protein was weakly expressed in normal pancreatic tissues and CP and PA specimens but significantly up-regulated in PCA (8-fold) as compared to the matched normal tissue (P < 0.05). Moreover, CCL20 mRNA and protein expression was significantly associated with advanced T-category in patients with PCA (P < 0.05). CCR6 mRNA showed a significant up-regulation in all three disease entities as compared to normal tissues (P < 0.05, respectively).ConclusionCCL20 and CCR6 were significantly up-regulated in PCA as compared to the normal pancreatic tissue and CCL20 was significantly associated with advanced T-category in PCA patients. This suggests that CCL20 and CCR6 play a role in the development and progression of PCA and may constitute potential targets for novel treatment strategies.

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