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Citations to this article

Helicobacter pylori induces β3GnT5 in human gastric cell lines, modulating expression of the SabA ligand sialyl–Lewis x
Nuno T. Marcos, … , Filipe Santos-Silva, Celso A. Reis
Nuno T. Marcos, … , Filipe Santos-Silva, Celso A. Reis
Published May 15, 2008
Citation Information: J Clin Invest. 2008;118(6):2325-2336. https://doi.org/10.1172/JCI34324.
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Research Article Gastroenterology

Helicobacter pylori induces β3GnT5 in human gastric cell lines, modulating expression of the SabA ligand sialyl–Lewis x

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Abstract

Chronic Helicobacter pylori infection is recognized as a cause of gastric cancer. H. pylori adhesion to gastric cells is mediated by bacterial adhesins such as sialic acid–binding adhesin (SabA), which binds the carbohydrate structure sialyl–Lewis x. Sialyl–Lewis x expression in the gastric epithelium is induced during persistent H. pylori infection, suggesting that H. pylori modulates host cell glycosylation patterns for enhanced adhesion. Here, we evaluate changes in the glycosylation-related gene expression profile of a human gastric carcinoma cell line following H. pylori infection. We observed that H. pylori significantly altered expression of 168 of the 1,031 human genes tested by microarray, and the extent of these alterations was associated with the pathogenicity of the H. pylori strain. A highly pathogenic strain altered expression of several genes involved in glycan biosynthesis, in particular that encoding β3 GlcNAc T5 (β3GnT5), a GlcNAc transferase essential for the biosynthesis of Lewis antigens. β3GnT5 induction was specific to infection with highly pathogenic strains of H. pylori carrying a cluster of genes known as the cag pathogenicity island, and was dependent on CagA and CagE. Further, β3GnT5 overexpression in human gastric carcinoma cell lines led to increased sialyl–Lewis x expression and H. pylori adhesion. This study identifies what we believe to be a novel mechanism by which H. pylori modulates the biosynthesis of the SabA ligand in gastric cells, thereby strengthening the epithelial attachment necessary to achieve successful colonization.

Authors

Nuno T. Marcos, Ana Magalhães, Bibiana Ferreira, Maria J. Oliveira, Ana S. Carvalho, Nuno Mendes, Tim Gilmartin, Steven R. Head, Céu Figueiredo, Leonor David, Filipe Santos-Silva, Celso A. Reis

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Total citations by year

Year: 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 Total
Citations: 1 4 2 5 4 3 4 5 6 4 3 3 2 2 2 5 55
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Citations to this article (55)

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Syndecan-4 is a maestro of gastric cancer cell invasion and communication that underscores poor survival
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Proceedings of the National Academy of Sciences 2023
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Scientific Reports 2023
Robust Glycoproteomics Platform Reveals a Tetra-Antennary Site-Specific Glycan Capping with Sialyl-Lewis Antigen for Early Detection of Gastric Cancer.
Liu L, Liu L, Wang Y, Fang Z, Bian Y, Zhang W, Wang Z, Gao X, Zhao C, Tian M, Liu X, Qin H, Guo Z, Liang X, Dong M, Nie Y, Ye M
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Do AD, Su CH, Hsu YM
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