Abstract:
BACKGROUND/AIMS:In this report, we aimed to investigate the distribution and characterization of biomarker-immunolabeled ductal epithelium in advanced pancreatic ductal adenocarcinoma (PDAC). DESIGN:Eighteen patients with PDAC were medically diagnosed prior to being treated periodically. All clinical records were collected and assayed. The PDAC samples were subjected to routine biochemical tests and immuno-stains of immunohistochemistry and immunofluorescence. RESULTS:As results, immunohistochemical findings indicated pancreatic ductal cells in PDAC showed plenty of Ki-67, P53, RP, SAM positive cells expressed in nuclei. In addition, ductal epithelial cells exhibited numerous positive cells of CK7, 18, 19, 20 biomarkers, respectively. Interestingly, compared to non-PDAC controls, immunostaining results showed that endocrine hormones were positively expressed in pancreatic ducts of PDAC, characterized with increased insulin-, Ngn3-, PDX1-fluorescence-labeled cells, and reduced F-box and WD-40 domain protein 7 (Fbxw7)-labeled cells in ducts. CONCLUSION:These clinicopathologic findings preliminarily disclose that there may be a potential for insulin-producing cells in PDAC, possibly through negatively inducing Fbxw7 ubiquitination in pancreatic ducts.
journal_name
Digestionjournal_title
Digestionauthors
Zhou R,Xu X,Liu M,Wu X,Li Rdoi
10.1159/000492861subject
Has Abstractpub_date
2019-01-01 00:00:00pages
247-251issue
3eissn
0012-2823issn
1421-9867pii
000492861journal_volume
99pub_type
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