Evidence map›Paper›PMID 20868736›Full record

ArticleBrain, behavior, and immunity2011

Roles of Toll-like receptor 2 (TLR2) and superantigens on adaptive immune responses during CNS staphylococcal infection.

Debbie Vidlak, Monica M Mariani, Amy Aldrich, Shuliang Liu, Tammy Kielian

Open access · greenAbstract read
In one paragraph

Article in Brain, behavior, and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

16 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. The immune system in neurological diseases: What innate-like T cells have to say.The Journal of allergy and clinical immunology · 2024
    Review
  4. Management of brain abscesses: where are we now?Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2018
    Review
  5. The retrovirus/superantigen hypothesis of multiple sclerosis.Cellular and molecular neurobiology · 2014
    Review
  6. Brain abscess: Current management.Journal of neurosciences in rural practice · 2013
    Review
  7. Toll-like receptor 2 ligands promote microglial cell death by inducing autophagy.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  8. Review
  9. Article
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  11. Article
  12. Article
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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

5 authors at 1 institution in 1 country.

Debbie VidlakDepartment of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Monica M Mariani
Amy Aldrich
Shuliang Liu
Tammy Kielian
University of Nebraska Medical Center · US

Funding

Receptors Involved in Microglial Responses to S. aureusR01NS055385 · NINDS · UNIV OF ARKANSAS FOR MED SCIS · PI KIELIAN, TAMMY L · 2007 to 2010
$1.1M
NINDS NIH HHS R01 NS055385
6 · The paper itself

Abstract

Staphylococcus aureus is a common etiologic agent of brain abscesses and possesses numerous virulence factors that manipulate host immunity. One example is superantigens (SAG) that clonally expand T cell subsets bearing specific Vβ receptors. Toll-like receptor 2 (TLR2) is one receptor implicated in S. aureus recognition. However, the interplay between TLR2, SAG, and adaptive immunity during brain abscess formation has not yet been investigated and could reveal novel insights into host-pathogen interactions for regulating protective immunity. A comprehensive analysis of abscess-associated T cell populations in TLR2 KO and WT mice was performed following infection with a S. aureus clinical isolate. Both natural killer T (NKT) and γδ T cell infiltrates were increased in brain abscesses of TLR2 KO mice and produced more IL-17 and IFN-γ compared to WT populations, which could have resulted from elevated bacterial burdens observed in these animals. Analysis of SAG-reactive T cells revealed a predominant Vβ(8.1,8.2) infiltrate reactive with staphylococcal enterotoxin B (SEB), whereas SEA-reactive Vβ(11) T cells were less numerous. Brain abscesses of TLR2 KO mice had fewer Vβ(8.1,8.2) and Vβ(11) T cells and produced less TNF-α and IFN-γ compared to WT animals. Treatment of primary microglia with purified SEB augmented TNF-α production in response to the TLR2 ligand Pam3Cys, which may serve to amplify proinflammatory cascades during CNS S. aureus infection. Collectively, these studies demonstrate that TLR2 impacts adaptive immunity to S. aureus infection and modulates SAG responses.

Indexed as

Adaptive ImmunityAnimalsBlotting, WesternBrain AbscessCytokinesEnzyme-Linked Immunosorbent AssayFemaleMaleMiceMice, Inbred C57BLMice, KnockoutMicrogliaReceptors, Antigen, T-Cell, alpha-betaStaphylococcal InfectionsSuperantigensT-Lymphocyte SubsetsCytokinesReceptors, Antigen, T-Cell, alpha-betaSuperantigensT cell receptor Vbeta8Tlr2 protein, mouseToll-Like Receptor 2

Identifiers

PMID20868736
PMCPMC3024450
OpenAlexW2053957116

What OpenQuestion holds

Textmetadata
LicenceTDM
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.