Cited by 139Escherichia coli research studiesVibrio bacteria research studiesBacterial Genetics and Biotechnology

Enterotoxigenic Escherichia coli secretes a highly conserved mucin-degrading metalloprotease to effectively engage intestinal epithelial cells

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Luo, Qingwei, Kumar, Pardeep, Vickers, Tim J., Sheikh, Alaullah, Lewis, Warren G., Rasko, David A., Sistrunk, Jeticia, Fleckenstein, James M.·2014·Infection and Immunity

Abstract

Enterotoxigenic Escherichia coli (ETEC) is a leading cause of death due to diarrheal illness among young children in developing countries, and there is currently no effective vaccine. Many elements of ETEC pathogenesis are still poorly defined. Here we demonstrate that YghJ, a secreted ETEC antigen identified in immunoproteomic studies using convalescent patient sera, is required for efficient access to small intestinal enterocytes and for the optimal delivery of heat-labile toxin (LT). Furthermore, YghJ is a highly conserved metalloprotease that influences intestinal colonization of ETEC by degrading the major mucins in the small intestine, MUC2 and MUC3. Genes encoding YghJ and its cognate type II secretion system (T2SS), which also secretes LT, are highly conserved in ETEC and exist in other enteric pathogens, including other diarrheagenic E. coli and Vibrio cholerae bacteria, suggesting that this mucin-degrading enzyme may represent a shared virulence feature of these important pathogens.

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Crossref · 10.1128/iai.01106-13

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  • Clinical studies have demonstrated the effectiveness of yoga as a therapeutic intervention for PTSD and dissociation through a downregulation of the stress response.

    “In addition, clinical studies have demonstrated the effectiveness of yoga as a therapeutic intervention for PTSD and dissociation through a downregulation of the stress response (180–182).”
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    “Finally, the zinc metalloproteases StcE and SslE secreted by E. coli EHEC and EPEC/ETEC respectively, contribute to intimate adherence of these bacteria to host cells, a process that is essential for colonization.73–78”

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Authors
Luo, Q., Kumar, P., Vickers, T. J., Sheikh, A., Lewis, W. G., Rasko, D. A., Sistrunk, J., & Fleckenstein, J. M.
Affiliations
  • Washington University in St. Louis (US)
  • University of Maryland, Baltimore (US)
Venue
Infection and Immunity
Published
2014-02
Volume
82
Issue
2
Pages
509-521
ISSN
  • 0019-9567 (ISSN-L)
  • 1098-5522
OpenAlex
W2096305565
Cited by
139
References
62
Citations by year
2026: 6 · 2025: 5 · 2024: 12 · 2023: 10 · 2022: 9 · 2021: 10 · 2020: 11 · 2019: 18 · 2018: 14 · 2017: 11 · 2016: 15 · 2015: 12 · 2014: 5 · 2013: 1
FWCI
7.81
Type
journal article
Language
en
Open access
Locations
  • Infection and Immunity (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons@Becker (Washington University School of Medicine) (submittedVersion)
Funders
  • U.S. Department of Health and Human Services (HHSN272200900009C)
  • U.S. Department of Veterans Affairs (I01 BX001469)
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (R01AI89894, HHSN272200900009C, R01AI089894)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK052574)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Escherichia coli research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Vibrio bacteria research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
enterotoxigenic Escherichia coli, metalloproteinases, mucin degradation, MUC2, MUC3, heat-labile toxin, type II secretion system, intestinal colonization, diarrheal disease, Vibrio cholerae
MeSH terms
Animals, Cell Line, Disease Models, Animal, Epithelial Cells, Escherichia coli Infections, Humans, Hydrolysis, Escherichia coli Proteins, Virulence Factors, Metalloproteases, Mice, Enterotoxigenic Escherichia coli, Mucin-2, Mucin-3

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