Evidence map›Paper›PMID 31434575›Full record

ArticleFluids and barriers of the CNS2019

Streptococcus agalactiae disrupts P-glycoprotein function in brain endothelial cells.

Brandon J Kim, Maura A McDonagh, Liwen Deng, Benjamin D Gastfriend, Alexandra Schubert-Unkmeir, Kelly S Doran, Eric V Shusta

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

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  11. Interaction ofFrontiers in cellular and infection microbiology · 2024
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  15. Review
  16. Group BPathogens (Basel, Switzerland) · 2022
    Article
  17. Article
  18. In Vitro Models of the Blood-Brain Barrier.Handbook of experimental pharmacology · 2021
    Article
  19. Article
  20. 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

7 authors at 4 institutions in 2 countries.

Brandon J KimDepartment of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, USA. Brandon.kim@hygiene.uni-wuerzburg.de.ORCID http://orcid.org/0000-0003-0476-8028
Maura A McDonaghDepartment of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, USA.
Liwen DengDepartment of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA.
Benjamin D GastfriendDepartment of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, USA.
Alexandra Schubert-UnkmeirDepartment of Hygiene and Microbiology, University of Würzburg, Joseph Schneider Strasse 2/E1, 97080, Würzburg, Germany.
Kelly S DoranDepartment of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA.
Eric V ShustaDepartment of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, USA.
University of Wisconsin–Madison · USUniversity of Colorado Denver · USUniversity of Wisconsin System · USUniversity of Würzburg · DE

Funding

BIOTECHNOLOGY TRAINING PROGRAMT32GM008349 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI FOX, BRIAN G · 1989 to 2019
$22.5M
Blood-brain barrier in bacterial meningitisR01NS051247 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DORAN, KELLY S · 2006 to 2015
$3.2M
RXRalpha and PPARdelta Signaling as Novel Regulators of the Blood-Brain BarrierR01NS083688 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI SHUSTA, ERIC V · 2013 to 2017
$1.9M
NIGMS NIH HHS T32 GM008349NINDS NIH HHS R01 NS051247NINDS NIH HHS R01 NS083688NINDS NIH HHS R01NS083688
6 · The paper itself

Abstract

Bacterial meningitis is a serious life threatening infection of the CNS. To cause meningitis, blood-borne bacteria need to interact with and penetrate brain endothelial cells (BECs) that comprise the blood-brain barrier. BECs help maintain brain homeostasis and they possess an array of efflux transporters, such as P-glycoprotein (P-gp), that function to efflux potentially harmful compounds from the CNS back into the circulation. Oftentimes, efflux also serves to limit the brain uptake of therapeutic drugs, representing a major hurdle for CNS drug delivery. During meningitis, BEC barrier integrity is compromised; however, little is known about efflux transport perturbations during infection. Thus, understanding the impact of bacterial infection on P-gp function would be important for potential routes of therapeutic intervention. To this end, the meningeal bacterial pathogen, Streptococcus agalactiae, was found to inhibit P-gp activity in human induced pluripotent stem cell-derived BECs, and live bacteria were required for the observed inhibition. This observation was correlated to decreased P-gp expression both in vitro and during infection in vivo using a mouse model of bacterial meningitis. Given the impact of bacterial interactions on P-gp function, it will be important to incorporate these findings into analyses of drug delivery paradigms for bacterial infections of the CNS.

Indexed as

AnimalsATP Binding Cassette Transporter, Subfamily B, Member 1BrainDisease Models, AnimalHumansInduced Pluripotent Stem CellsStreptococcal InfectionsStreptococcus agalactiaeATP Binding Cassette Transporter, Subfamily B, Member 1Brain endothelial cellsEfflux transportGroup B StreptococcusMeningitisP-glycoproteinP-gpStem cellsStreptococcus agalactiae

Identifiers

PMID31434575
PMCPMC6704684
OpenAlexW2969531189

What OpenQuestion holds

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LicenceCC BY
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.