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MUC17 Is a Potential New Prognostic Biomarker and Promotes Pancreatic Cancer Progression in Obstructive Jaundice
Eleonóra Gál1, István Menyhárt1, Zoltán Veréb2,3
1Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary.
Oncology
|October 13, 2024
Summary
Mucin 17 (MUC17) drives bile acid-induced pancreatic cancer progression. Elevated MUC17 expression in pancreatic ductal adenocarcinoma patients correlates with poorer survival, highlighting its role as a prognostic biomarker.
Area of Science:
- Oncology
- Gastroenterology
- Molecular Biology
Background:
- Bile acids (BAs) are known to accelerate pancreatic cancer (PC) progression, with mucin 4 (MUC4) playing a key role.
- The involvement of other mucins, such as mucin 17 (MUC17), in bile-induced PC progression remains less understood.
Purpose of the Study:
- To investigate the expression of MUC17 in pancreatic ductal adenocarcinoma (PDAC) cell lines treated with bile acids or human serum.
- To determine the role of MUC17 in bile-induced pancreatic cancer progression.
Main Methods:
- Utilized cell-based assays with RNA silencing and overexpression to study MUC17 function.
- Evaluated MUC17 protein expression in 55 human pancreatic samples via immunohistochemistry.
- Performed Kaplan-Meier survival analysis to assess the prognostic significance of MUC17.
Main Results:
- MUC17 expression was elevated in PDAC patients, particularly those with obstructive jaundice (OJ), and associated with significantly poorer overall survival.
- Treatment with bile acids or serum from PDAC + OJ patients increased MUC17 expression and cell proliferation.
- Knockdown of MUC17, alone or with MUC4, attenuated bile acid-induced carcinogenic processes.
Conclusions:
- MUC17 plays a critical role in bile-induced pancreatic cancer progression.
- MUC17 serves as a potential novel prognostic biomarker for pancreatic cancer, alongside MUC4.
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