Evidence map›Paper›PMID 19820089›Full record

ArticleJournal of bacteriology2009

Penetration of the blood-brain barrier by Bacillus anthracis requires the pXO1-encoded BslA protein.

Celia M Ebrahimi, Justin W Kern, Tamsin R Sheen, Mohammad A Ebrahimi-Fardooee, Nina M van Sorge, Olaf Schneewind, Kelly S Doran

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

23 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Pleiotropic functions of CpdB in Bacillus anthracis.World journal of microbiology & biotechnology · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. TheMicroorganisms · 2020
    Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Cellular and physiological effects of anthrax exotoxin and its relevance to disease.Frontiers in cellular and infection microbiology · 2012
    Review
  20. 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 4 institutions in 2 countries.

Celia M EbrahimiDepartment of Biology, San Diego State University, San Diego, CA 92182, USA.
Justin W Kern
Tamsin R Sheen
Mohammad A Ebrahimi-Fardooee
Nina M van Sorge
Olaf Schneewind
Kelly S Doran
San Diego State University · USUniversity of Chicago · USToronto Metropolitan University · CAUniversity of California San Diego · US

Funding

Blood-brain barrier in bacterial meningitisR01NS051247 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DORAN, KELLY S · 2006 to 2015
$3.2M
NINDS NIH HHS R01 NS051247
6 · The paper itself

Abstract

Anthrax is a zoonotic disease caused by the gram-positive spore-forming bacterium Bacillus anthracis. Human infection occurs after the ingestion, inhalation, or cutaneous inoculation of B. anthracis spores. The subsequent progression of the disease is largely mediated by two native virulence plasmids, pXO1 and pXO2, and is characterized by septicemia, toxemia, and meningitis. In order to produce meningitis, blood-borne bacteria must interact with and breach the blood-brain barrier (BBB) that is composed of a specialized layer of brain microvascular endothelial cells (BMEC). We have recently shown that B. anthracis Sterne is capable of penetrating the BBB in vitro and in vivo, establishing the classic signs of meningitis; however, the molecular mechanisms underlying the central nervous system (CNS) tropism are not known. Here, we show that attachment to and invasion of human BMEC by B. anthracis Sterne is mediated by the pXO1 plasmid and an encoded envelope factor, BslA. The results of studies using complementation analysis, recombinant BslA protein, and heterologous expression demonstrate that BslA is both necessary and sufficient to promote adherence to brain endothelium. Furthermore, mice injected with the BslA-deficient strain exhibited a significant decrease in the frequency of brain infection compared to mice injected with the parental strain. In addition, BslA contributed to BBB breakdown by disrupting tight junction protein ZO-1. Our results identify the pXO1-encoded BslA adhesin as a critical mediator of CNS entry and offer new insights into the pathogenesis of anthrax meningitis.

Indexed as

Adhesins, BacterialAnimalsAnthraxBacillus anthracisBacterial AdhesionBacterial ProteinsBlood-Brain BarrierCell LineDisease Models, AnimalFemaleHumansMiceMicroscopyPlasmidsAdhesins, BacterialBacterial Proteins

Identifiers

PMID19820089
PMCPMC2786561
OpenAlexW2140617106

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.