Cited by 239Escherichia coli research studiesClostridium difficile and Clostridium perfringens researchEnterobacteriaceae and Cronobacter Research

Enterohemorrhagic Escherichia coli Reduces Mucus and Intermicrovillar Bridges in Human Stem Cell-Derived Colonoids

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In, Julie, Foulke-Abel, Jennifer, Zachos, Nicholas C., Hansen, Anne-Marie, Kaper, James B., Bernstein, Harris D., Halushka, Marc, Blutt, Sarah +3 more·2016·Cellular and Molecular Gastroenterology and Hepatology

Abstract

BACKGROUND AND AIMS: (EHEC) causes over 70,000 episodes of foodborne diarrhea annually in the USA. The early sequence of events which precede life-threatening hemorrhagic colitis and hemolytic uremic syndrome are not fully understood due to the initial asymptomatic phase of the disease and the lack of a suitable animal model. The aim of this study was to determine the initial molecular events in the interaction between EHEC and human colonic epithelium. METHODS: Human colonoids derived from adult proximal colonic stem cells were developed into monolayers to study EHEC-epithelial interactions. Monolayer confluency and differentiation were monitored by transepithelial electrical resistance (TER) measurements. The monolayers were apically infected with EHEC and the progression of epithelial damage over time was assessed using biochemical and imaging approaches. RESULTS: Human colonoid cultures recapitulate the differential protein expression patterns characteristic of the crypt and surface colonocytes. Mucus-producing differentiated colonoid monolayers are preferentially colonized by EHEC. Upon colonization, EHEC forms characteristic attaching and effacing lesions on the apical surface of colonoid monolayers. Mucin 2, a main component of colonic mucus, and protocadherin 24 (PCDH24), a microvillar resident protein, are targeted by EHEC at early stages of infection. The EHEC secreted serine protease, EspP, initiates brush border damage through PCDH24 reduction. CONCLUSIONS: Human colonoid monolayers are a relevant pathophysiological model which allows the study of early molecular events during enteric infections. Colonoid monolayers provide access to both apical and basolateral surfaces, thus providing an advantage over 3D cultures to study host-pathogen interactions in a controllable and tractable manner. EHEC reduces colonic mucus and affects the brush border cytoskeleton in the absence of commensal bacteria.

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  1. [36]Bertin Y. Chaucheyras-Durand F. Robbe-Masselot C. Carbohydrate utilization by enterohaemorrhagic Escherichia coli O157:H7 in bovine intestinal content Environ Microbiol 15 2013 610 622 23126484 PMC3558604

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Authors
In, J., Foulke-Abel, J., Zachos, N. C., Hansen, A.-M., Kaper, J. B., Bernstein, H. D., Halushka, M., Blutt, S., Estes, M. K., Donowitz, M., & Kovbasnjuk, O.
Affiliations
  • Johns Hopkins University (US)
  • University of Maryland, Baltimore (US)
  • National Institutes of Health (US)
  • Baylor College of Medicine (US)
Corresponding author
Kovbasnjuk, Olga
Venue
Cellular and Molecular Gastroenterology and Hepatology
Publisher
Elsevier BV
Published
2016-01
Volume
2
Issue
1
Pages
48-62.e3
ISSN
2352-345X (ISSN-L)
OpenAlex
W2193652497
Cited by
239
References
42
Citations by year
2026: 4 · 2025: 13 · 2024: 24 · 2023: 22 · 2022: 30 · 2021: 28 · 2020: 34 · 2019: 30 · 2018: 23 · 2017: 22 · 2016: 6 · 2015: 3
FWCI
14.03
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Gastroenterology and Hepatology (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Johns Hopkins University
  • National Institutes of Health (5r24dk064388-07, U18TR000552)
  • National Institute of Allergy and Infectious Diseases (U19AI116497)
  • National Institute of Diabetes and Digestive and Kidney Diseases (T32DK007632, P30DK089502, R24DK-064388, P01DK072084, R01DK026523, R24DK099803)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Escherichia coli research studies
  • Health Sciences › Medicine › Infectious Diseases › Clostridium difficile and Clostridium perfringens research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Enterobacteriaceae and Cronobacter Research
Keywords
enterohemorrhagic Escherichia coli, colonoids, mucus production, MUC2, attaching and effacing lesions, host-pathogen interaction, transepithelial electrical resistance

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