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Isolating and Analyzing Cells of the Pancreas Mesenchyme by Flow Cytometry
Published on: January 28, 2017
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Mesothelin expression in pancreatic mucinous cysts.
Renee Frank1, Shaoying Li2, Nuzhat A Ahmad3
1From the Departments of Pathology and Laboratory Medicine and.
American Journal of Clinical Pathology
|August 16, 2014
Summary
Mesothelin (MSLN) is overexpressed in pancreatic mucinous cysts, acting as a marker for neoplastic transformation. This finding aids in identifying cancerous mucinous epithelium in IPMN and MCN.
Area of Science:
- Gastroenterology
- Surgical Pathology
- Oncology
Background:
- Mesothelin (MSLN) is a differentiation antigen.
- MSLN is overexpressed in intraductal papillary mucinous neoplasms (IPMNs).
- MSLN is a potential therapeutic target in pancreatic ductal adenocarcinoma.
Purpose of the Study:
- To investigate MSLN expression in pancreatic mucinous cysts.
- To determine if MSLN can serve as a marker for neoplastic transformation in these cysts.
Main Methods:
- Retrospective analysis of 114 resected pancreatic mucinous cysts (IPMN and MCN).
- Immunohistochemical analysis of MSLN expression on tissue sections.
- Comparison of MSLN expression in neoplastic epithelium versus normal pancreatic and duodenal epithelium.
Main Results:
- MSLN was significantly more frequent in neoplastic epithelial cells of IPMN and MCN compared to normal ducts and duodenal epithelium.
- MSLN expression was diffuse in neoplastic epithelium and focal in adjacent ducts.
- No significant difference in MSLN presence/absence was observed between IPMN and MCN.
Conclusions:
- MSLN expression indicates neoplastic transformation in pancreatic mucinous cysts.
- MSLN can be utilized as a marker to identify neoplastic mucinous epithelium.
- These findings support MSLN's role in diagnosing pancreatic cystic neoplasms.
