Cited by 295Helicobacter pylori-related gastroenterology studiesProtease and Inhibitor MechanismsHeat shock proteins research

Helicobacter pylori HtrA is a new secreted virulence factor that cleaves E‐cadherin to disrupt intercellular adhesion

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Hoy, Benjamin, Löwer, Martin, Weydig, Christiane, Carra, Gert, Tegtmeyer, Nicole, Geppert, Tim, Schröder, Peter, Sewald, Norbert +3 more·2010·The EMBO Reports

Abstract

Mammalian and prokaryotic high-temperature requirement A (HtrA) proteins are chaperones and serine proteases with important roles in protein quality control. Here, we describe an entirely new function of HtrA and identify it as a new secreted virulence factor from Helicobacter pylori, which cleaves the ectodomain of the cell-adhesion protein E-cadherin. E-cadherin shedding disrupts epithelial barrier functions allowing H. pylori designed to access the intercellular space. We then designed a small-molecule inhibitor that efficiently blocks HtrA activity, E-cadherin cleavage and intercellular entry of H. pylori.

Integrity signals

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Crossref · 10.1038/embor.2010.114

Cites

23 of 23 references verified0 citation errors · 0 not checkable

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  • The zinc-protease PqqE and the serine-protease HtrA disrupt gastric mucosal integrity and thereby facilitate bacterial invasion.

    “the zinc-protease PqqE and the serine-protease HtrA disrupt gastric mucosal integrity61–63 and thereby facilitate bacterial invasion.”
  • Tight junctions are targets of infectious agents such as Pseudomonas aeruginosa (through LasB), H. pylori (PqqE and HtrA), C. jejuni (HtrA), V. cholerae (vibrolysin), Shigella, Salmonella or pathogenic Escherichia coli (SepA).

    “Tight junctions are also targets of infectious agents such as Pseudomonas aeruginosa (through LasB),132 H. pylori (PqqE and HtrA),61–63 C. jejuni (HtrA), 79,80 V. cholerae (vibrolysin),10,83 Shigella, Salmonella or pathogenic Escherichia coli (SepA).72,133”

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Authors
Hoy, B., Löwer, M., Weydig, C., Carra, G., Tegtmeyer, N., Geppert, T., Schröder, P., Sewald, N., Backert, S., Schneider, G., & Wessler, S.
Affiliations
  • Paul Ehrlich Institut (DE)
  • Goethe University Frankfurt (DE)
  • University College Dublin (IE)
  • ETH Zurich (CH)
  • Bielefeld University (DE)
Venue
The EMBO Reports
Published
2010-09-03
Volume
11
Issue
10
Pages
798-804
ISSN
  • 1469-221X (ISSN-L)
  • 1469-3178
OpenAlex
W2097301400
Cited by
295
References
23
Citations by year
2026: 9 · 2025: 11 · 2024: 20 · 2023: 19 · 2022: 13 · 2021: 24 · 2020: 19 · 2019: 28 · 2018: 16 · 2017: 18 · 2016: 16 · 2015: 19 · 2014: 20 · 2013: 26 · 2012: 15
FWCI
21.25
Type
journal article
Language
en
Open access
Locations
  • EMBO Reports (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • PUB – Publications at Bielefeld University (Bielefeld University) (submittedVersion)
  • Publikationen an der Universität Bielefeld (Universität Bielefeld) (submittedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Helicobacter pylori-related gastroenterology studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
Keywords
Helicobacter pylori, HtrA, secreted virulence factors, E-cadherin cleavage, cell-cell adhesion, epithelial barrier function, serine protease, molecular chaperones, small molecule inhibitors, bacterial cell entry
MeSH terms
Bacterial Adhesion, Bacterial Outer Membrane Proteins, Epithelial Cells, Humans, Blotting, Western, Cell Adhesion Molecules, Cadherins, Helicobacter pylori, Helicobacter Infections, Virulence Factors, Cell Line, Tumor

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