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Gastroenterology Research and Practice
Volume 2017 (2017), Article ID 9207616, 7 pages
Research Article

Prognostic Evaluation of Vimentin Expression in Correlation with Ki67 and CD44 in Surgically Resected Pancreatic Ductal Adenocarcinoma

1Pathology Department, “Tzaneion” General Hospital, Pireaus, Greece
22nd Department of Surgery, University Hospital “Aretaeion”, Athens, Greece
3Division of Surgery & Interventional Science, University College London, London, UK
41st Department of Surgery, “Tzaneion” General Hospital, Pireaus, Greece

Correspondence should be addressed to Panagis M. Lykoudis

Received 21 August 2016; Revised 14 February 2017; Accepted 28 February 2017; Published 22 March 2017

Academic Editor: Piero Chirletti

Copyright © 2017 Despoina Myoteri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. Radical surgical resection with adjuvant chemotherapy or chemo-radiotherapy is the most effective treatment for pancreatic ductal adenocarcinoma (PDAC). However, relatively few studies investigate the prognostic significance of biological markers in PDAC. This study aims to look into the expressions of vimentin, Ki67, and CD44 in PDAC surgical specimens and their potential prognostic implications in survival. Method. The study was designed as retrospective, and vimentin, Ki67, and CD44 expressions were evaluated by immunohistochemistry in 53 pancreatic ductal adenocarcinoma cases. Overall survival was assessed by the Kaplan–Meier method. Results. Patients’ median age was 68 years. The median survival was 18 months. The tumors were T3-4 in 40/53 (75.5%), and metastases in lymph nodes were found in 42 out of 53 (79.2%) cases. On multivariate analysis, the size of primary tumor (), the surgical resection margin status (), and vimentin expression () were independently correlated with overall survival. Conclusions. Long-term survival after resection of PDAC is still about 15%. Vimentin expression is a potential independent adverse prognostic molecular marker and should be included in histopathological reports. Also, CD44 expression correlates with high Ki67, vimentin positivity, and N stage and may represent a potential target of novel therapeutic modalities in pancreatic adenocarcinoma patients.