Evidence map›Paper›PMID 25071751›Full record

ArticleFrontiers in microbiology2014

The IL-8 protease SpyCEP is detrimental for Group A Streptococcus host-cells interaction and biofilm formation.

Federica Andreoni, Taiji Ogawa, Mariko Ogawa, Jerzy Madon, Satoshi Uchiyama, Reto A Schuepbach, Annelies S Zinkernagel

Abstract read
In one paragraph

Article in Frontiers in microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Article
  2. Limited Adaptation ofMicrobiology spectrum · 2023
    Article
  3. The group AInfectious microbes & diseases · 2022
    Article
  4. Article
  5. Review
  6. Article
  7. Group AFrontiers in cellular and infection microbiology · 2018
    Article
  8. Review
  9. 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.

Federica AndreoniDivision of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich Zurich, Switzerland.
Taiji OgawaDivision of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich Zurich, Switzerland.
Mariko OgawaDivision of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich Zurich, Switzerland.
Jerzy MadonSurgical Intensive Care Medicine, University Hospital Zurich, University of Zurich Zurich, Switzerland.
Satoshi UchiyamaDivision of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich Zurich, Switzerland.
Reto A SchuepbachSurgical Intensive Care Medicine, University Hospital Zurich, University of Zurich Zurich, Switzerland.
Annelies S ZinkernagelDivision of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich Zurich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

SpyCEP-mediated chemokine degradation translates into more efficient spreading and increased severity of invasive Group A Streptococcus (GAS) infections, due to impaired neutrophil recruitment to the site of infection. SpyCEP is markedly up-regulated in invasive as compared to colonizing GAS isolates raising the question whether SpyCEP expression hinders bacterial attachment and thus colonization of the host. To address this question we used a molecular approach involving the use of homologous GAS strains either expressing or not SpyCEP or expressing an enzymatically inactive variant of SpyCEP. We found that expression of enzymatically functional SpyCEP lowered GAS adherence and invasion potential toward various epithelial and endothelial cells. SpyCEP also blunted biofilm formation capacity. Our data indicate that expression of SpyCEP decreases colonization and thus might be detrimental for the spreading of GAS.

Indexed as

biofilmscolonizationGroup A StreptococcusIL-8 proteaseSpyCEPvirulence factors

Identifiers

PMID25071751
PMCPMC4090674

What OpenQuestion holds

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Registered trials

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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.