Evidence map›Paper›PMID 24914221›Full record

ArticleInfection and immunity2014

Superantigens subvert the neutrophil response to promote abscess formation and enhance Staphylococcus aureus survival in vivo.

Stacey X Xu, Kevin J Gilmore, Peter A Szabo, Joseph J Zeppa, Miren L Baroja, S M Mansour Haeryfar, John K McCormick

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.2field-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

41 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Genetic and immune determinants ofProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  8. Article
  9. Genetic and immune determinants ofbioRxiv : the preprint server for biology · 2023
    Article
  10. Whole-Genome Analysis ofFoods (Basel, Switzerland) · 2022
    Article
  11. Article
  12. Superantigens promoteProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. International journal of molecular sciences · 2020
    Review
  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.

Stacey X XuDepartment of Microbiology and Immunology, Western University, London, Canada.
Kevin J GilmoreDepartment of Anatomy and Cell Biology, Western University, London, Canada.
Peter A SzaboDepartment of Microbiology and Immunology, Western University, London, Canada.
Joseph J ZeppaDepartment of Microbiology and Immunology, Western University, London, Canada.
Miren L BarojaDepartment of Microbiology and Immunology, Western University, London, Canada Lawson Health Research Institute, London, Canada.
S M Mansour HaeryfarDepartment of Microbiology and Immunology, Western University, London, Canada Centre for Human Immunology, Western University, London, Canada Lawson Health Research Institute, London, Canada.
John K McCormickDepartment of Microbiology and Immunology, Western University, London, Canada Centre for Human Immunology, Western University, London, Canada Lawson Health Research Institute, London, Canada john.mccormick@uwo.ca.
Western University · CALawson Health Research Institute · CA

Funding

Canadian Institutes of Health Research MOP-130465Canadian Institutes of Health Research MOP-64176
6 · The paper itself

Abstract

Staphylococcus aureus is a versatile bacterial pathogen that produces T cell-activating toxins known as superantigens (SAgs). Although excessive immune activation by SAgs can induce a dysregulated cytokine storm as a component of what is known as toxic shock syndrome (TSS), the contribution of SAgs to the staphylococcal infection process is not well defined. Here, we evaluated the role of the bacterial superantigen staphylococcal enterotoxin A (SEA) in a bacteremia model using humanized transgenic mice expressing SAg-responsive HLA-DR4 molecules. Infection with S. aureus Newman induced SEA-dependent Vβ skewing of T cells and enhanced bacterial survival in the liver compared with infection by sea knockout strain. SEA-induced gamma interferon, interleukin-12, and chemokine responses resulted in increased infiltration of CD11b(+) Ly6G(+) neutrophils into the liver, promoting the formation of abscesses that contained large numbers of viable staphylococci. Hepatic abscesses occurred significantly more frequently in S. aureus Newman-infected livers than in livers infected with the Newman sea knockout strain, promoting the survival of S. aureus in vivo. This represents a novel mechanism during infection whereby S. aureus utilizes SAgs to form a specialized niche and manipulate the immune system.

Indexed as

AbscessAnimalsAntigens, LyCD11b AntigenEnterotoxinsHLA-DR4 AntigenInterferon-gammaInterleukin-12LiverLymphocyte ActivationMaleMiceMice, TransgenicNeutrophilsStaphylococcal InfectionsStaphylococcus aureusAntigens, LyCD11b Antigenenterotoxin A, StaphylococcalEnterotoxinsHLA-DR4 AntigenInterferon-gammaInterleukin-12Ly6G antigen, mouseSuperantigens

Identifiers

PMID24914221
PMCPMC4187807
OpenAlexW2135171977

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.