Biliary Tract Carcinogenesis Model Based on Bile Metaproteomics

被引:5
|
作者
Arteta, Ariel A. [1 ,2 ,3 ]
Sanchez-Jimenez, Miryan [4 ]
Davila, Diego F. [5 ]
Palacios, Oscar G. [5 ]
Cardona-Castro, Nora [1 ,2 ,4 ]
机构
[1] CES Univ, Sch Grad Studies, Medellin, Colombia
[2] CES Univ, Sch Med, Basic Sci Res Grp, Medellin, Colombia
[3] Univ Antioquia, Dept Pathol, Medellin, Colombia
[4] Colombian Inst Trop Med ICMT, Sabaneta, Colombia
[5] CES Clin, Dept Hepatobiliary & Pancreat Surg, Medellin, Colombia
来源
FRONTIERS IN ONCOLOGY | 2020年 / 10卷
关键词
pancreatic cancer; metaproteomic; proteomic; bile; zeatin; surfactin; IL-8; carcinogenesis model; PANCREATIC-CANCER; BACILLUS-SUBTILIS; DUCTAL ADENOCARCINOMA; BIOLOGICAL-ACTIVITY; BIOFILM FORMATION; CARCINOMA CELLS; TNF-ALPHA; INTERLEUKIN-8; INFLAMMATION; INDUCTION;
D O I
10.3389/fonc.2020.01032
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Purpose:To analyze human and bacteria proteomic profiles in bile, exposed to a tumor vs. non-tumor microenvironment, in order to identify differences between these conditions, which may contribute to a better understanding of pancreatic carcinogenesis. Patients and Methods:Using liquid chromatography and mass spectrometry, human and bacterial proteomic profiles of a total of 20 bile samples (7 from gallstone (GS) patients, and 13 from pancreatic head ductal adenocarcinoma (PDAC) patients) that were collected during surgery and taken directly from the gallbladder, were compared. g:Profiler and KEGG (Kyoto Encyclopedia of Genes and Genomes) Mapper Reconstruct Pathway were used as the main comparative platform focusing on over-represented biological pathways among human proteins and interaction pathways among bacterial proteins. Results:Three bacterial infection pathways were over-represented in the human PDAC group of proteins. IL-8 is the only human protein that coincides in the three pathways and this protein is only present in the PDAC group. Quantitative and qualitative differences in bacterial proteins suggest a dysbiotic microenvironment in the PDAC group, supported by significant participation of antibiotic biosynthesis enzymes. Prokaryotes interaction signaling pathways highlight the presence of zeatin in the GS group and surfactin in the PDAC group, the former in the metabolism of terpenoids and polyketides, and the latter in both metabolisms of terpenoids, polyketides and quorum sensing. Based on our findings, we propose a bacterial-induced carcinogenesis model for the biliary tract. Conclusion:To the best of our knowledge this is the first study with the aim of comparing human and bacterial bile proteins in a tumor vs. non-tumor microenvironment. We proposed a new carcinogenesis model for the biliary tract based on bile metaproteomic findings. Our results suggest that bacteria may be key players in biliary tract carcinogenesis, in a long-lasting dysbiotic and epithelially harmful microenvironment, in which specific bacterial species' biofilm formation is of utmost importance. Our finding should be further explored in future usingin vitroandin vivoinvestigations.
引用
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页数:15
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