Publication: The Forgotten Virulence Factor: The ‘non-conventional’ Hemolysin TlyA And Its Role in Helicobacter pylori Infection
Issued Date
2016-12-01
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ISSN
14320991
03438651
03438651
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2-s2.0-84989170919
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Mahidol University
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SCOPUS
Bibliographic Citation
Current Microbiology. Vol.73, No.6 (2016), 930-937
Suggested Citation
Mohammad Bagher Javadi, Gerd Katzenmeier The Forgotten Virulence Factor: The ‘non-conventional’ Hemolysin TlyA And Its Role in Helicobacter pylori Infection. Current Microbiology. Vol.73, No.6 (2016), 930-937. doi:10.1007/s00284-016-1141-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/40734
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Title
The Forgotten Virulence Factor: The ‘non-conventional’ Hemolysin TlyA And Its Role in Helicobacter pylori Infection
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Abstract
© 2016, Springer Science+Business Media New York. Helicobacter pylori is a human-specific Gram-negative pathogenic bacterium which colonizes the gastric mucosal layer in the stomach causing diseases such as peptic ulcer, adenocarcinoma, and gastric lymphoma. It is estimated that approximately half of the world’s population is infected with H. pylori making it the most intensively characterized microbial pathogen up to now. Hemolysis has been suggested to significantly contribute to colonization of the stomach and disease progression by H. pylori. In a number of earlier studies, TlyA was characterized as a putative pore-forming cytolysin. Although a few observations in the literature suggest a role for TlyA as significant virulence factor of H. pylori, the molecular and structural characterization of this protein is much curtailed at present. Given the intensive characterization of numerous H. pylori virulence factors over the past decade, surprisingly little information exists for the TlyA toxin and its significance for pathogenesis. This review provides a brief overview on microbial hemolysis and its role for pathogenesis and discusses recent research efforts aimed at an improved understanding of the role of the ‘non-conventional’ hemolysin and its associated RNA methyltransferase TlyA from H. pylori.