Evidence map›Paper›PMID 23760820›Full record

ArticleMicrobiology (Reading, England)2013

Enterotoxigenic Escherichia coli CS21 pilus contributes to adhesion to intestinal cells and to pathogenesis under in vivo conditions.

C P Guevara, W B Luiz, A Sierra, C Cruz, F Qadri, R S Kaushik, L C S Ferreira, O G Gómez-Duarte

Open access · greenAbstract read
In one paragraph

Article in Microbiology (Reading, England), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
  2. Article
  3. Epidemiology of enterotoxigenicFrontiers in public health · 2024
    Article
  4. Article
  5. RecombinantPathogens (Basel, Switzerland) · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Tracking Bioluminescent ETEC duringFrontiers in cellular and infection microbiology · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 3 countries.

C P GuevaraDepartment of Pediatrics, University of Iowa College of Medicine, Iowa City, IA, USA.
W B LuizDepartment of Microbiology, Biomedical Sciences Institute, University of São Paulo, 05508-000 São Paulo, Brazil.
A SierraInternal Medicine, University of Iowa College of Medicine, Iowa City, IA, USA.
C CruzDepartment of Pediatrics, University of Iowa College of Medicine, Iowa City, IA, USA.
F QadriInternational Centre for Diarrheal Disease Research, Bangladesh (ICDDR,B), Dhaka, Bangladesh.
R S KaushikDepartments of Biology and Microbiology, and Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, USA.
L C S FerreiraDepartment of Microbiology, Biomedical Sciences Institute, University of São Paulo, 05508-000 São Paulo, Brazil.
O G Gómez-DuarteDepartment of Pediatrics, University of Iowa College of Medicine, Iowa City, IA, USA.
University of Iowa · USUniversidade de São Paulo · BRInternational Centre for Diarrhoeal Disease Research · BDSouth Dakota State University · US

Funding

Function of Longus Type IV pili in enterotoxigenic E coliK08AI079410 · NIAID · UNIVERSITY OF IOWA · PI GOMEZ, OSCAR G · 2008 to 2010
$382k
NIAID NIH HHS K08 AI079410NIAID NIH HHS K08 AI079410A
6 · The paper itself

Abstract

Colonization surface antigens (CSs) represent key virulence-associated factors of enterotoxigenic Escherichia coli (ETEC) strains. They are required for gut colonization, the first step of the diarrhoeal disease process induced by these bacteria. One of the most prevalent CSs is CS21, or longus, a type IV pili associated with bacterial self-aggregation, protection against environmental stresses, biofilm formation and adherence to epithelial cell lines. The objectives of this study were to assess the role of CS21 in adherence to primary intestinal epithelial cells and to determine if CS21 contributes to the pathogenesis of ETEC infection in vivo. We evaluated adherence of a CS21-expressing wild-type ETEC strain and an isogenic CS21-mutant strain to pig-derived intestinal cell lines. To determine the role of CS21 in pathogenesis we used the above ETEC strains in a neonatal mice challenge infection model to assess mortality. Quantitative adherence assays confirmed that ETEC adheres to primary intestinal epithelial cells lines in a CS21-dependent manner. In addition, the CS21-mediated ETEC adherence to cells was specific as purified LngA protein, the CS21 major subunit, competed for binding with the CS21-expressing ETEC while specific anti-LngA antibodies blocked adhesion to intestinal cells. Neonatal DBA/2 mice died after intra-stomach administration of CS21-expressing strains while lack of CS21 expression drastically reduced the virulence of the wild-type ETEC strain in this animal model. Collectively these results further support the role of CS21 during ETEC infection and add new evidence on its in vivo relevance in pathogenesis.

Indexed as

Bacterial AdhesionAdhesins, BacterialAnimalsAnimals, NewbornBacterial ToxinsCells, CulturedEnterotoxigenic Escherichia coliEpithelial CellsEscherichia coli InfectionsEscherichia coli ProteinsFimbriae, BacterialGene DeletionMiceMice, Inbred DBASurvival AnalysisSwineAdhesins, BacterialBacterial ToxinsEscherichia coli ProteinsLngA protein, E coliVirulence Factors

Identifiers

PMID23760820
PMCPMC3749052
OpenAlexW2156570556

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.