Evidence map›Paper›PMID 22622042›Full record

ArticleThe Journal of clinical investigation2012

Identification of a novel pneumococcal vaccine antigen preferentially expressed during meningitis in mice.

Layla K Mahdi, Hui Wang, Mark B Van der Hoek, James C Paton, Abiodun D Ogunniyi

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 2 pooled it
4.1field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 2 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Osmotic therapies added to antibiotics for acute bacterial meningitis.The Cochrane database of systematic reviews · 2018
    Pooled it
  2. Osmotic therapies added to antibiotics for acute bacterial meningitis.The Cochrane database of systematic reviews · 2013
    Pooled it
  3. Review
  4. Review
  5. Article
  6. Article
  7. Frontiers in cellular and infection microbiology · 2022
    Review
  8. Article
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  15. Review
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  19. IQGAP1 Mediates Hcp1-PromotedFrontiers in cellular and infection microbiology · 2017
    Article
  20. Directed vaccination against pneumococcal disease.Proceedings of the National Academy of Sciences of the United States of America · 2016
    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

5 authors at 1 institution in 1 country.

Layla K MahdiResearch Centre for Infectious Diseases, School of Molecular and Biomedical Science, University of Adelaide, Adelaide, South Australia, Australia.
Hui Wang
Mark B Van der Hoek
James C Paton
Abiodun D Ogunniyi
University of Adelaide · AU

Funding

Wellcome Trust
6 · The paper itself

Abstract

Streptococcus pneumoniae is the most common cause of severe bacterial meningitis in children, the elderly, and immunocompromised individuals. To identify virulence factors preferentially expressed during meningitis, we conducted niche-specific genome-wide in vivo transcriptomic analysis after intranasal infection of mice with serotype 4 or 6A pneumococci. The expression of 34 bacterial genes was substantially altered in brain tissue of mice infected with either of the 2 strains. Ten upregulated genes were common to both strains, 7 of which were evaluated for their role in the development of meningitis. One previously uncharacterized protein, α-glycerophosphate oxidase (GlpO), was cytotoxic for human brain microvascular endothelial cells (HBMECs) via generation of H(2)O(2). A glpO deletion mutant was defective in adherence to HBMECs in vitro as well as in progression from the blood to the brain in vivo. Mutant bacteria also induced markedly reduced meningeal inflammation and brain pathology compared with wild type, despite similar levels of bacteremia. Immunization of mice with GlpO protected against invasive pneumococcal disease and provided additive protection when formulated with pneumolysin toxoid. Our results provide the basis of a strategy that can be adapted to identify genes that contribute to the development of meningitis caused by other pathogens.

Indexed as

AnimalsAntigens, BacterialBacterial ProteinsCells, CulturedFemaleGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicGlycerolphosphate DehydrogenaseHumansMeningitis, PneumococcalMiceMutationPneumococcal VaccinesStreptococcus pneumoniaeStreptolysinsToxoidsAntigens, BacterialBacterial ProteinsGlycerolphosphate DehydrogenaseplY protein, Streptococcus pneumoniaePneumococcal VaccinesStreptolysinsToxoids

Identifiers

PMID22622042
PMCPMC3366392
OpenAlexW1983922934

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.