Evidence map›Paper›PMID 24643538›Full record

ArticleInfection and immunity2014

Identification of a group B streptococcal fibronectin binding protein, SfbA, that contributes to invasion of brain endothelium and development of meningitis.

Rong Mu, Brandon J Kim, Czarinah Paco, Yvette Del Rosario, Harry S Courtney, Kelly S Doran

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
6.1field-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

48 citing papers in PubMed, 86 citations in OpenAlex.

  1. Pathogens (Basel, Switzerland) · 2026
    Article
  2. Interactions betweenInfection and immunity · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Interaction ofInternational journal of molecular sciences · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Re-framing the importance of Group BInfection and immunity · 2024
    Review
  11. Article
  12. Review
  13. Current neuropharmacology · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Group B Streptococcal Neonatal Meningitis.Clinical microbiology reviews · 2022
    Review
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

6 authors at 2 institutions in 1 country.

Rong MuDepartment of Biology, San Diego State University, San Diego, California, USA.
Brandon J Kim
Czarinah Paco
Yvette Del Rosario
Harry S Courtney
Kelly S Doran
San Diego State University · USUniversity of Tennessee Health Science Center · US

Funding

Promoting wellness and resiliencyT34GM008303 · NIGMS · SAN DIEGO STATE UNIVERSITY · PI ATKINS, CATHERINE J · 1989 to 2022
$6.4M
Blood-brain barrier in bacterial meningitisR01NS051247 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DORAN, KELLY S · 2006 to 2015
$3.2M
NIGMS NIH HHS 5T34GM008303-22NIGMS NIH HHS T34 GM008303NINDS NIH HHS R01 NS051247NINDS NIH HHS R01-NS051247
6 · The paper itself

Abstract

Group B Streptococcus (GBS) is currently the leading cause of neonatal meningitis. This is due to its ability to survive and multiply in the bloodstream and interact with specialized human brain microvascular endothelial cells (hBMEC), which constitute the blood-brain barrier (BBB). The exact mechanism(s) of GBS-BBB penetration is still largely unknown. We and others have shown that GBS interacts with components of the extracellular matrix. In this study, we demonstrate that GBS of representative serotypes binds immobilized and cell surface fibronectin and identify a putative fibronectin binding protein, streptococcal fibronectin binding protein A (SfbA). Allelic replacement of sfbA in the GBS chromosome resulted in a significant decrease in ability to bind fibronection and invade hBMEC compared with the wild-type (WT) parental strain. Expression of SfbA in the noninvasive strain Lactococcus lactis was sufficient to promote fibronectin binding and hBMEC invasion. Furthermore, the addition of an antifibronectin antibody or an RGD peptide that blocks fibronectin binding to integrins significantly reduced invasion of the WT but not the sfbA-deficient mutant strain, demonstrating the importance of an SfbA-fibronectin-integrin interaction for GBS cellular invasion. Using a murine model of GBS meningitis, we also observed that WT GBS penetrated the brain and established meningitis more frequently than did the ΔsfbA mutant strain. Our data suggest that GBS SfbA plays an important role in bacterial interaction with BBB endothelium and the pathogenesis of streptococcal meningitis.

Indexed as

Adhesins, BacterialAnimalsBacterial AdhesionBrainCell LineColony Count, MicrobialDisease Models, AnimalEndothelial CellsEndothelium, VascularGene Expression Regulation, BacterialIntegrinsMeningitis, BacterialMiceMutationStreptococcal InfectionsStreptococcus agalactiaeAdhesins, Bacterialfibronectin-binding proteins, bacterialIntegrins

Identifiers

PMID24643538
PMCPMC4019170
OpenAlexW2152430077

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.