期刊
ONCOTARGETS AND THERAPY
卷 9, 期 -, 页码 6719-6726出版社
DOVE MEDICAL PRESS LTD
DOI: 10.2147/OTT.S111382
关键词
PDAC; muscarinic acetylcholine receptor 3; M3; tumor budding; parasympathetic nerve fiber; prognosis
资金
- China Cancer Research Foundation [Y-N2013-008]
- Doctoral Program of the Ministry of Education [20130001110089]
- National Natural Science Foundation of China [81230051, 81472734, 81272709]
- Peking University Third Hospital [Y81524-01]
Aims: Recent studies showed that muscarinic acetylcholine receptor 3 (M3), as a muscarinic acetylcholine receptor family member that plays an important role in normal physiological function, is engaged in cancer progression. However, the role of M3 in pancreatic ductal adenocarcinoma (PDAC) is not known. The aim of this study is to investigate the expression and prognostic value of M3 in patients with PDAC. Materials and methods: The localization and expression of M3 in PDAC were examined by immunohistochemistry. VAChT was employed to detect parasympathetic nerve fibers in the corresponding M3 PDAC tissues. The correlation between M3 expression and patients' survival was assessed by Kaplan-Meier analysis. Results: M3 was discovered predominantly localized in the cell cytoplasm and expressed in all specimens of PDAC patients. Significant correlation was noted between increased M3 intensity and high grade of PDAC (P<0.01), more lymph node metastasis (P<0.01) as well as shorter patient overall survival (P<0.01). Morphologically, cells with high M3 expression were more frequently located at the invasive tumor front/tumor budding cells, metastatic lymph nodes and parasympathetic nerve fibers. Conclusion: High expression of M3 is a prognostic marker for PDAC.
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