Evidence map›Paper›PMID 18316380›Full record

ArticleInfection and immunity2008

Type 2 secretion promotes enterohemorrhagic Escherichia coli adherence and intestinal colonization.

Theresa D Ho, Brigid M Davis, Jennifer M Ritchie, Matthew K Waldor

Abstract read
In one paragraph

Article in Infection and immunity, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
4.0field-weighted citation impact, top 7% 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

44 citing papers in PubMed, 69 citations in OpenAlex.

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  5. Comparative genomics of Shiga toxin-producingFrontiers in veterinary science · 2025
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  8. Uncovering the Secretion Systems ofAntibiotics (Basel, Switzerland) · 2023
    Review
  9. Genome-wide analysis inMicrobial genomics · 2021
    Article
  10. Computational prediction of secreted proteins in gram-negative bacteria.Computational and structural biotechnology journal · 2021
    Review
  11. Article
  12. Article
  13. The Secrets of Acinetobacter Secretion.Trends in microbiology · 2017
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Theresa D HoChanning Laboratory, Brigham and Women's Hospital, 181 Longwood Avenue, Boston, MA 02115, USA.
Brigid M Davis
Jennifer M Ritchie
Matthew K Waldor
Brigham and Women's Hospital · US

Funding

Intestinal colonization of Enterohemorrhagic E. coilR21AI067827 · NIAID · TUFTS UNIVERSITY BOSTON · PI WALDOR, MATTHEW K · 2006 to 2007
$473k
Howard Hughes Medical InstituteNIAID NIH HHS R21 AI067827NIAID NIH HHS R21-AI67827
6 · The paper itself

Abstract

Enterohemorrhagic Escherichia coli (EHEC) is a noninvasive food-borne pathogen that colonizes the distal ileum and colon. Proteins encoded in the EHEC locus of enterocyte effacement (LEE) pathogenicity island are known to contribute to this pathogen's adherence to epithelial cells and intestinal colonization. The role of non-LEE-encoded proteins in these processes is not as clear. We found that the Z2053 gene (designated adfO here), a gene located in a cryptic EHEC prophage, exhibits similarity to adherence and/or colonization factor genes found in several other enteric pathogens. An EHEC adfO mutant exhibited marked reductions in adherence to HeLa cells and in the secretion of several proteins into the supernatant. YodA, one of these secreted proteins, was found to be a substrate of the EHEC pO157-encoded type 2 secretion system (T2SS). Both the T2SS and YodA proved to be essential for EHEC adherence to cultured HeLa cell monolayers. Using an infant rabbit model of infection, we found that the adfO mutation did not affect colonization but that the colonization of an etpC (T2SS) mutant was reduced approximately 5-fold. A strain deficient in YodA had a more severe colonization defect; however, this strain also exhibited a growth defect in vitro. Overall, our findings indicate that the pO157-encoded T2SS contributes to EHEC adherence and intestinal colonization and thus show that EHEC pathogenicity depends on type 2 secretion as well as type 3 secretion.

Indexed as

AnimalsBacterial AdhesionBacterial Outer Membrane ProteinsEnterohemorrhagic Escherichia coliEscherichia coli InfectionsEscherichia coli ProteinsGene DeletionHeLa CellsHumansIntestinesRabbitsVirulenceVirulence FactorsBacterial Outer Membrane ProteinsEscherichia coli ProteinsEtpC protein, E coliVirulence FactorsZinT protein, E coli

Identifiers

PMID18316380
PMCPMC2346697
OpenAlexW2109339376

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.