Cited by 74Neonatal and Maternal InfectionsBacterial Infections and VaccinesStreptococcal Infections and Treatments

The Group B Streptococcal surface antigen I/II protein, BspC, interacts with host vimentin to promote adherence to brain endothelium and inflammation during the pathogenesis of meningitis.

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Deng, Liwen, Spencer, Brady L., Holmes, Joshua A., Mu, Rong, Rego, Sara, Weston, Thomas A., Hu, Yoonsung, Sanches, Glenda F. +8 more·2019·PLOS Pathogens

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Abstract

Streptococcus agalactiae (Group B Streptococcus, GBS) normally colonizes healthy adults but can cause invasive disease, such as meningitis, in the newborn. To gain access to the central nervous system, GBS must interact with and penetrate brain or meningeal blood vessels; however, the exact mechanisms are still being elucidated. Here, we investigate the contribution of BspC, an antigen I/II family adhesin, to the pathogenesis of GBS meningitis. Disruption of the bspC gene reduced GBS adherence to human cerebral microvascular endothelial cells (hCMEC), while heterologous expression of BspC in non-adherent Lactococcus lactis conferred bacterial attachment. In a murine model of hematogenous meningitis, mice infected with ΔbspC mutants exhibited lower mortality as well as decreased brain bacterial counts and inflammatory infiltrate compared to mice infected with WT GBS strains. Further, BspC was both necessary and sufficient to induce neutrophil chemokine expression. We determined that BspC interacts with the host cytoskeleton component vimentin and confirmed this interaction using a bacterial two-hybrid assay, microscale thermophoresis, immunofluorescent staining, and imaging flow cytometry. Vimentin null mice were protected from WT GBS infection and also exhibited less inflammatory cytokine production in brain tissue. These results suggest that BspC and the vimentin interaction is critical for the pathogenesis of GBS meningitis.

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  • All major meningitis causing bacteria can adhere strongly to meningeal fibroblasts and arachnoid barrier-like cells, and Group B Streptococcus bacteria cross the blood brain barrier by binding to vimentin on endothelial cells, which is also highly expressed by arachnoid barrier cells.

    “All major meningitis causing bacteria can adhere strongly to meningeal fibroblasts and arachnoid barrier-like cells”

    From Living on the Edge of the CNS: Meninges Cell Diversity in Health and Disease (2021) · cites this paper as Deng et al., 2019

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Authors
Deng, L., Spencer, B. L., Holmes, J. A., Mu, R., Rego, S., Weston, T. A., Hu, Y., Sanches, G. F., Yoon, S., Park, N., Nagao, P. E., Jenkinson, H. F., Thornton, J. A., Seo, K. S., Nobbs, A. H., & Doran, K. S.
Affiliations
  • San Diego State University (US)
  • University of Colorado Anschutz (US)
  • University of Bristol (GB)
  • Mississippi State University (US)
  • Universidade do Estado do Rio de Janeiro (BR)
Corresponding author
Doran, Kelly S.
Venue
PLOS Pathogens
Published
2019-06-10
Volume
15
Issue
6
Pages
e1007848
ISSN
  • 1553-7366 (ISSN-L)
  • 1553-7374
OpenAlex
W2949218991
Cited by
74
References
95
Citations by year
2026: 7 · 2025: 4 · 2024: 11 · 2023: 14 · 2022: 14 · 2021: 10 · 2020: 9 · 2019: 5
FWCI
8.69
Type
journal article
Language
en
Open access
Locations
  • PLoS Pathogens (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Explore Bristol Research (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Bristol Research (University of Bristol) (submittedVersion, cc-by)
Funders
  • Mississippi State University
  • University of Bristol
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior ((Code 001))
  • National Institutes of Health
  • Anschutz Medical Campus, University of Colorado
  • National Institute of General Medical Sciences (P20GM103476)
  • National Institute of Allergy and Infectious Diseases (T32AI007405)
  • National Institute of Neurological Disorders and Stroke (R01NS051247)
  • National Institute of Dental and Craniofacial Research (R01DE016690)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Neonatal and Maternal Infections
  • Life Sciences › Immunology and Microbiology › Microbiology › Bacterial Infections and Vaccines
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Streptococcal Infections and Treatments
Keywords
Streptococcus agalactiae, vimentin, bacterial adhesion, brain endothelium, meningitis, host-pathogen interaction, neutrophil chemokines, neuroinflammation, Lactococcus lactis, bacterial virulence
MeSH terms
Animals, Antigens, Bacterial, Bacterial Proteins, Brain, Endothelium, Vascular, HeLa Cells, Humans, Male, Mice, Mutant Strains, Sheep, Streptococcal Infections, Streptococcus agalactiae, Vimentin, Meningitis, Bacterial, Mice

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