Evidence map›Paper›PMID 19762436›Full record

ArticleMicrobiology (Reading, England)2009

Influence of type IV pilus retraction on the architecture of the Neisseria gonorrhoeae-infected cell cortex.

Dustin L Higashi, Gina H Zhang, Nicolas Biais, Lauren R Myers, Nathan J Weyand, David A Elliott, Magdalene So

Open access · greenAbstract read
In one paragraph

Article in Microbiology (Reading, England), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Techniques to measure pilus retraction forces.Methods in molecular biology (Clifton, N.J.) · 2012
    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

7 authors at 2 institutions in 1 country.

Dustin L HigashiDepartment of Immunobiology and the BIO5 Institute, University of Arizona, Tucson, AZ, USA.
Gina H ZhangDepartment of Cell Biology and Anatomy, College of Medicine, University of Arizona, Tucson, AZ, USA.
Nicolas BiaisDepartment of Biological Sciences, Columbia University, New York, USA.
Lauren R MyersDepartment of Immunobiology and the BIO5 Institute, University of Arizona, Tucson, AZ, USA.
Nathan J WeyandDepartment of Immunobiology and the BIO5 Institute, University of Arizona, Tucson, AZ, USA.
David A ElliottDepartment of Cell Biology and Anatomy, College of Medicine, University of Arizona, Tucson, AZ, USA.
Magdalene SoDepartment of Immunobiology and the BIO5 Institute, University of Arizona, Tucson, AZ, USA.
University of Arizona · USColumbia University · US

Funding

GC Tfp Retraction and Stress-Responsive Host SignalingR01AI068033 · NIAID · UNIVERSITY OF ARIZONA · PI SO, MAGDALENE Y · 2006 to 2009
$1.5M
NIAID NIH HHS AI068033NIAID NIH HHS R01 AI068033
6 · The paper itself

Abstract

Early in infection, Neisseria gonorrhoeae can be observed to attach to the epithelial cell surface as microcolonies and induce dramatic changes to the host cell cortex. We tested the hypothesis that type IV pili (Tfp) retraction plays a role in the ultrastructure of both the host cell cortex and the bacterial microcolony. Using serial ultrathin sectioning, transmission electron microscopy and 3D reconstruction of serial 2D images, we have obtained what we believe to be the first 3D reconstructions of the N. gonorrhoeae-host cell interface, and determined the architecture of infected cell microvilli as well as the attached microcolony. Tfp connect both wild-type (wt) and Tfp retraction-deficient bacteria with each other, and with the host cell membrane. Tfp fibres and microvilli form a lattice in the wt microcolony and at its periphery. Wt microcolonies induce microvilli formation and increases of surface area, leading to an approximately ninefold increase in the surface area of the host cell membrane at the site of attachment. In contrast, Tfp retraction-deficient microcolonies do not affect these parameters. Wt microcolonies had a symmetrical, dome-shaped structure with a circular 'footprint', while Tfp retraction-deficient microcolonies were notably less symmetrical. These findings support a major role for Tfp retraction in microvilli and microcolony architecture. They are consistent with the biophysical attributes of Tfp and the effects of Tfp retraction on epithelial cell signalling.

Indexed as

Bacterial AdhesionCell LineFimbriae, BacterialHumansImaging, Three-DimensionalMicroscopy, Electron, ScanningMicroscopy, Electron, TransmissionNeisseria gonorrhoeaeVirulence

Identifiers

PMID19762436
PMCPMC2889423
OpenAlexW2103248142

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.