Article: Metaproteomic Profile of the Colonic Luminal Microbiota From Patients With Colon Cancer.
2022 Volume 13, Page(s) 869523
Abstract: Recent studies have provided evidence of interactions among the gut microbiota (GM), local host immune cells, and intestinal tissues in colon carcinogenesis. However, little is known regarding the functions exerted by the GM in colon cancer (CC), ... ...
Abstract | Recent studies have provided evidence of interactions among the gut microbiota (GM), local host immune cells, and intestinal tissues in colon carcinogenesis. However, little is known regarding the functions exerted by the GM in colon cancer (CC), particularly with respect to tumor clinical classification and lymphocyte infiltration. In addition, stool, usually employed as a proxy of the GM, cannot fully represent the original complexity of CC microenvironment. Here, we present a pilot study aimed at characterizing the metaproteome of CC-associated colonic luminal contents and identifying its possible associations with CC clinicopathological features. Colonic luminal contents were collected from 24 CC tissue specimens immediately after surgery. Samples were analyzed by shotgun metaproteomics. Almost 30,000 microbial peptides were quantified in the samples, enabling the achievement of the taxonomic and functional profile of the tumor-associated colonic luminal metaproteome. Upon sample aggregation based on tumor stage, grade, or tumor-infiltrating lymphocytes (TILs), peptide sets enabling discrimination of sample groups were identified through discriminant analysis (DA). As a result, |
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Language | English |
Publishing date | 2022-04-14 |
Publishing country | Switzerland |
Document type | Journal Article |
ZDB-ID | 2587354-4 |
ISSN | 1664-302X |
ISSN | 1664-302X |
DOI | 10.3389/fmicb.2022.869523 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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