Evidence map›Paper›PMID 16520379›Full record

ArticleThe Journal of biological chemistry2006

Epithelial cells are sensitive detectors of bacterial pore-forming toxins.

Adam J Ratner, Karen R Hippe, Jorge L Aguilar, Matthew H Bender, Aaron L Nelson, Jeffrey N Weiser

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
12.9field-weighted citation impact, top 1% 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

100 citing papers in PubMed, 172 citations in OpenAlex.

  1. Loss of Streptococcus pneumoniae iga Causes More Severe Keratitis in Mice.Investigative ophthalmology & visual science · 2026
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  6. Review
  7. Article
  8. Article
  9. Article
  10. TheScience signaling · 2022
    Article
  11. Microorganisms · 2022
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Pneumolysin Induces 12-Lipoxygenase-Dependent Neutrophil Migration duringJournal of immunology (Baltimore, Md. : 1950) · 2020
    Article
  20. Review

40 more citing papers are in PubMed but not listed here.

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 1 country.

Adam J RatnerDepartment of Microbiology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA. ratner@mail.med.upenn.edu
Karen R Hippe
Jorge L Aguilar
Matthew H Bender
Aaron L Nelson
Jeffrey N Weiser
University of Pennsylvania · US

Funding

ROLE OF OPACITY VARIATION IN PNEUMOCOCCAL PATHOGENESISR01AI038446 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI WEISER, JEFFREY NEAL · 1996 to 2019
$7.4M
BACTERIAL PHOSPHORYLCHOLINE AND PATHOGENESISR01AI044231 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI WEISER, JEFFREY NEAL · 1999 to 2009
$2.6M
Polymicrobial induction of epithelial inflammationK08AI065450 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI RATNER, ADAM JONATHAN · 2005 to 2008
$501k
Competition Among Bacterial Resiratory PathogensR21AI054647 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI WEISER, JEFFREY N. · 2003 to 2004
$462k
Bacterial phosphorycholine and pathogenesisR21AI044231 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI WEISER, JEFFREY N. · 2004 to 2004
$350k
NIAID NIH HHS AI038446NIAID NIH HHS AI044231NIAID NIH HHS AI054647NIAID NIH HHS AI065450NIAID NIH HHS K08 AI065450NIAID NIH HHS R01 AI038446NIAID NIH HHS R01 AI044231NIAID NIH HHS R21 AI044231NIAID NIH HHS R21 AI054647
6 · The paper itself

Abstract

Epithelial cells act as an interface between human mucosal surfaces and the surrounding environment. As a result, they are responsible for the initiation of local immune responses, which may be crucial for prevention of invasive infection. Here we show that epithelial cells detect the presence of bacterial pore-forming toxins (including pneumolysin from Streptococcus pneumoniae, alpha-hemolysin from Staphylococcus aureus, streptolysin O from Streptococcus pyogenes, and anthrolysin O from Bacillus anthracis) at nanomolar concentrations, far below those required to cause cytolysis. Phosphorylation of p38 MAPK appears to be a conserved response of epithelial cells to subcytolytic concentrations of bacterial poreforming toxins, and this activity is inhibited by the addition of high molecular weight osmolytes to the extracellular medium. By sensing osmotic stress caused by the insertion of a sublethal number of pores into their membranes, epithelial cells may act as an early warning system to commence an immune response, while the local density of toxin-producing bacteria remains low. Osmosensing may thus represent a novel innate immune response to a common bacterial virulence strategy.

Indexed as

Bacillus anthracisBacterial ProteinsBacterial ToxinsCell Line, TumorEpithelial CellsHemolysin ProteinsHumansInterleukin-8Membrane GlycoproteinsOsmosisp38 Mitogen-Activated Protein KinasesStaphylococcus aureusStreptococcus pneumoniaeStreptolysinsanthrolysin O, Bacillus anthracisBacterial ProteinsBacterial ToxinsHemolysin ProteinsInterleukin-8Membrane Glycoproteinsp38 Mitogen-Activated Protein Kinasesstreptolysin OStreptolysins

Identifiers

PMID16520379
PMCPMC1586115
OpenAlexW2080013385

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.