Evidence map›Paper›PMID 14977949›Full record

ArticleInfection and immunity2004

Invasion of porcine brain microvascular endothelial cells by Streptococcus suis serotype 2.

Ghyslaine Vanier, Mariela Segura, Peter Friedl, Sonia Lacouture, Marcelo Gottschalk

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
7.6field-weighted citation impact, top 3% 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

57 citing papers in PubMed, 141 citations in OpenAlex.

  1. Article
  2. Proteomic Analysis ofInternational journal of molecular sciences · 2025
    Article
  3. Article
  4. Article
  5. Genomic analysis and virulence of human Streptococcus suis serotype 14.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Absence ofMicroorganisms · 2022
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Microorganisms · 2020
    Article
  19. Update onPathogens (Basel, Switzerland) · 2020
    Article
  20. Frontiers in veterinary science · 2020
    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 2 institutions in 2 countries.

Ghyslaine VanierGroupe de Recherche sur les Maladies Infectieuses du Porc (GREMIP), Faculté de Médecine Vétérinaire, Université de Montréal, Québec, Canada.
Mariela Segura
Peter Friedl
Sonia Lacouture
Marcelo Gottschalk
Université de Montréal · CADarmstadt University of Applied Sciences · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Streptococcus suis is an important swine pathogen that mainly causes meningitis and occasionally causes other infections, such as endocarditis, arthritis, and pneumonia. The pathogenesis of S. suis infection has not been completely defined. However, in order to cause meningitis, S. suis has to cross the blood-brain barrier (BBB) made up of brain microvascular endothelial cells. The objective of this work was to study the interactions of S. suis serotype 2 with porcine brain microvascular endothelial cells (PBMEC). The ability of North American and European S. suis serotype 2 strains to adhere to PBMEC and, most importantly, to invade PBMEC was demonstrated by using an antibiotic protection assay and was confirmed by electron microscopy. The polysaccharide capsule of S. suis seemed to partially interfere with the adhesion and invasion abilities of the bacterium. Our results showed that intracellular viable S. suis could be found in PBMEC up to 7 h after antibiotic treatment. Inhibition studies demonstrated that invasion of PBMEC by S. suis required actin microfilaments but not microtubular cytoskeletal elements or active bacterial RNA or protein synthesis. At high bacterial doses, suilysin-positive strains were toxic for PBMEC. The role of suilysin in cytotoxicity was confirmed by using purified suilysin, electron microscopy, and the lack of toxicity of a suilysin-negative mutant. In swine, the invasion of endothelial cells of the BBB could play an important role in the pathogenesis of the meningitis caused by S. suis.

Indexed as

Actin CytoskeletonAnimalsBacterial AdhesionBlood-Brain BarrierBrainCell LineEndothelium, VascularMeningitis, BacterialMicrocirculationMicroscopy, ElectronMicrotubulesNucleic Acid Synthesis InhibitorsProtein Synthesis InhibitorsSerotypingStreptococcal InfectionsStreptococcus suisNucleic Acid Synthesis InhibitorsProtein Synthesis Inhibitors

Identifiers

PMID14977949
PMCPMC356020
OpenAlexW2039151590

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.