Evidence map›Paper›PMID 18952791›Full record

ArticleJournal of bacteriology2009

The type 4 pili of enterohemorrhagic Escherichia coli O157:H7 are multipurpose structures with pathogenic attributes.

Juan Xicohtencatl-Cortes, Valério Monteiro-Neto, Zeus Saldaña, Maria A Ledesma, Jose Luís Puente, Jorge A Girón

Abstract read
In one paragraph

Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

40 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. Type IV pilin regulation: a transcriptional overview.Critical reviews in microbiology · 2026
    Review
  3. Review
  4. Type IV pili ofEcoSal Plus · 2024
    Review
  5. Article
  6. Article
  7. Article
  8. PchE Regulation ofInternational journal of molecular sciences · 2020
    Article
  9. Article
  10. Structure and function of minor pilins of type IV pili.Medical microbiology and immunology · 2020
    Review
  11. Article
  12. Review
  13. Article
  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

6 authors at 1 institution in 2 countries.

Juan Xicohtencatl-CortesDepartment of Immunobiology, University of Arizona, Tucson, AZ 85724, USA.
Valério Monteiro-Neto
Zeus Saldaña
Maria A Ledesma
Jose Luís Puente
Jorge A Girón
University of Arizona · US

Funding

Novel YcbQ Pili of Enterohemorrhagic E. coli O157:H7R01AI063211 · NIAID · UNIVERSITY OF ARIZONA · PI GIRON, JORGE A · 2004 to 2007
$901k
Novel Type IV Pili of Enterohemorrhagic E. coli O157:H7R21AI061020 · NIAID · UNIVERSITY OF ARIZONA · PI GIRON, JORGE A · 2004 to 2004
$283k
NIAID NIH HHS AI61020NIAID NIH HHS AI63211-01NIAID NIH HHS R01 AI063211NIAID NIH HHS R21 AI061020
6 · The paper itself

Abstract

Enterohemorrhagic Escherichia coli (EHEC) O157:H7 produces long bundles of polar type 4 pili (T4P) called HCP (for hemorrhagic coli pili) that form physical bridges between bacteria associating with human and animal epithelial cells. Here, we sought to further investigate whether HCP possessed other pathogenicity attributes associated with T4P production. Comparative studies performed with wild-type EHEC EDL933 and an isogenic hcpA mutant revealed that HCP play different roles in the biology of this organism. We found that in addition to promoting bacterial attachment to host cells, HCP mediate (i) invasion of epithelial cells, (ii) hemagglutination of rabbit erythrocytes, (iii) interbacterial connections conducive to biofilm formation, (iv) specific binding to host extracellular matrix proteins laminin and fibronectin but not collagen, and (v) twitching motility. Nonadherent laboratory E. coli strain HB101 complemented with hcpABC genes on plasmid pJX22, which specifies for HCP overproduction in EDL933, became hyperadherent and invasive and produced a thick biofilm, suggesting that the presence of HCP confers HB101(pJX22) new attributes otherwise not exhibited by HB101. Analogous to other bacteria in which T4P are involved in the pathogenesis of several infectious diseases, our data strongly suggest that HCP display multiple functions that may contribute to EHEC colonization of different hosts and to virulence, survival, and transmission of this food-borne pathogen.

Indexed as

AnimalsBacterial ProteinsBiofilmsCell Line, TumorColonDiarrheaDNA PrimersEpithelial CellsEscherichia coli InfectionsEscherichia coli O157Fimbriae, BacterialFood MicrobiologyHeLa CellsHemolytic-Uremic SyndromeHumansPlasmidsBacterial ProteinsDNA PrimersShiga Toxins

Identifiers

PMID18952791
PMCPMC2612451
OpenAlexW2032792118

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.