Evidence map›Paper›PMID 18573902›Full record

ArticleInfection and immunity2008

CD46 Contributes to the severity of group A streptococcal infection.

Lena Lövkvist, Hong Sjölinder, Rahma Wehelie, Helena Aro, Anna Norrby-Teglund, Laura Plant, Ann-Beth Jonsson

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2008. 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
4.4field-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

16 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Adenovirus type-35 vectors block human CD4+ T-cell activation via CD46 ligation.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  11. Article
  12. [Necrotizing fasciitis. 2011 update].Der Unfallchirurg · 2011
    Article
  13. CD46 plasticity and its inflammatory bias in multiple sclerosis.Archivum immunologiae et therapiae experimentalis · 2011
    Review
  14. Article
  15. Presenilin/gamma-secretase cleaves CD46 in response to Neisseria infection.Journal of immunology (Baltimore, Md. : 1950) · 2010
    Article
  16. 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.

Lena LövkvistDepartment of Medical Biochemistry and Microbiology, Biomedical Centre, Uppsala University, Uppsala, Sweden.
Hong Sjölinder
Rahma Wehelie
Helena Aro
Anna Norrby-Teglund
Laura Plant
Ann-Beth Jonsson
Uppsala University · SEKarolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Streptococcus pyogenes (group A Streptococcus) is a human pathogen that causes a wide variety of diseases ranging from uncomplicated superficial infections to severe infections such as streptococcal toxic shock syndrome and necrotizing fasciitis. These bacteria interact with several host cell receptors, one of which is the cell surface complement regulator CD46. In this study, we demonstrate that infection of epithelial cells with S. pyogenes leads to the shedding of CD46 at the same time as the bacteria induce apoptosis and cell death. Soluble CD46 attached to the streptococcal surface, suggesting that bacteria might bind available extracellular CD46 as a strategy to survive and avoid host defenses. The protective role of human CD46 was demonstrated in ex vivo whole-blood assays showing that the growth of S. pyogenes was enhanced in blood from mice expressing human CD46. Finally, in vivo experimental infection showed that bacteremia levels, arthritis frequency, and mortality were higher in CD46 transgenic mice than in nontransgenic mice. Taken together, these results argue that bacterial exploitation of human CD46 enhances bacterial survival and represents a novel pathogenic mechanism that contributes to the severity of group A streptococcal disease.

Indexed as

AnimalsApoptosisArthritis, InfectiousBacteremiaBloodCell DeathCell LineEpithelial CellsHumansMembrane Cofactor ProteinMiceMice, TransgenicProtein BindingSeverity of Illness IndexStreptococcal InfectionsStreptococcus pyogenesCD46 protein, humanMembrane Cofactor Protein

Identifiers

PMID18573902
PMCPMC2519399
OpenAlexW2167283284

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.