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Expression of MUC5AC and MUC6 in invasive ductal carcinoma of the pancreas and relationship with prognosis

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Abstract

Aim/Background. MUC5AC and MUC6 are two major types of mucin that are abundantly present in the stomach; both of them form a gel of high viscosity that provides protection and lubrication. Expressions of MUC5AC and MUC6 are seen in pancreatic neoplasms, whereas the relationships between MUC5AC/MUC6 expression and clinicopathological factors and patient prognosis in invasive ductal carcinoma (IDC) of the pancreas have not been investigated. The aim of this study was to investigate MUC5AC and MUC6 expressions in IDC with special reference to clinicopathological factors and patient prognosis.

Methods. Tissue samples were taken from 33 patients with IDC of the pancreas after radical surgical treatment. MUC5AC and MUC6 expressions were examined immunohistochemically.

Results. The expressions of MUC5AC and MUC6 were observed in the cytoplasm of the tumor cells. MUC5AC and MUC6 immunoreactivities in the cancer tissues were found in 21 (63.6%) and 15 (45.5%) of 33 cases of IDC of the pancreas, respectively. MUC5AC-negative expression was associated significantly with lymphatic invasion, venous invasion, lymph node metastasis, and MUC5AC-positive patients showed significant better survival than those MUC5AC-negative patients. MUC6 expression was significantly related to tumor location, whereas MUC6 expression did not show significant relationship with patient survival.

Conclusion. The results indicate that MUC5AC expression plays an important role in impacting tumor progression in IDC of the pancreas. MUC5AC expression is a benefit to better survival of patients with IDC of the pancreas. MUC6 expression is not involved in tumor progression in IDC of the pancreas.

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Authors and Affiliations

  1. First Department of Surgery, Graduate School of Medicine, University of Yamagata, 222 Iida-Nishi, Yamagata City, Yamagata, Japan

    Ma Jinfeng, Wataru Kimura MD, Ichiro Hirai, Fumiaki Sakurai, Toshiyuki Moriya & Masaomi Mizutani

Authors
  1. Ma Jinfeng
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  2. Wataru Kimura MD
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  3. Ichiro Hirai
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  4. Fumiaki Sakurai
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  5. Toshiyuki Moriya
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  6. Masaomi Mizutani
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Corresponding author

Correspondence to Wataru Kimura MD.

Additional information

This study was supported in part by the Japan-China Sasakawa Medical Fellowship.

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Jinfeng, M., Kimura, W., Hirai, I. et al. Expression of MUC5AC and MUC6 in invasive ductal carcinoma of the pancreas and relationship with prognosis. Int J Gastrointest Canc 34, 9–18 (2003). https://doi.org/10.1385/IJGC:34:1:09

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