Evidence map›Paper›PMID 34425919›Full record

ArticleActa neuropathologica communications2021

Importance of extracellular vesicle secretion at the blood-cerebrospinal fluid interface in the pathogenesis of Alzheimer's disease.

Charysse Vandendriessche, Sriram Balusu, Caroline Van Cauwenberghe, Marjana Brkic, Marie Pauwels, Nele Plehiers, Arnout Bruggeman, Pieter Dujardin, Griet Van Imschoot, Elien Van Wonterghem and 5 more

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
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  4. Apocrine secretion by the choroid plexus.Fluids and barriers of the CNS · 2025
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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

15 authors at 3 institutions in 2 countries.

Charysse Vandendriessche *VIB Center for Inflammation Research, VIB, Ghent, Belgium.
Sriram Balusu *VIB Center for the Biology of Disease, VIB, Leuven, Belgium.
Caroline Van CauwenbergheVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Marjana BrkicVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Marie PauwelsVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Nele PlehiersVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Arnout BruggemanVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Pieter DujardinVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Griet Van ImschootVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Elien Van WonterghemVIB Center for Inflammation Research, VIB, Ghent, Belgium.
An HendrixLaboratory of Experimental Cancer Research, Department of Human Structure and Repair, Ghent University, Ghent, Belgium.
Femke BaekeVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Riet De RyckeVIB Center for Inflammation Research, VIB, Ghent, Belgium.
Kris GevaertVIB Center for Medical Biotechnology, VIB, Ghent, Belgium.
Roosmarijn E VandenbrouckeVIB Center for Inflammation Research, VIB, Ghent, Belgium. roosmarijn.vandenbroucke@irc.vib-ugent.be.ORCID 0000-0002-8327-620X
Ghent University · BEGhent University Hospital · BEVIB-KU Leuven Center for Cancer Biology · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Increasing evidence indicates that extracellular vesicles (EVs) play an important role in the pathogenesis of Alzheimer's disease (AD). We previously reported that the blood-cerebrospinal fluid (CSF) interface, formed by the choroid plexus epithelial (CPE) cells, releases an increased amount of EVs into the CSF in response to peripheral inflammation. Here, we studied the importance of CP-mediated EV release in AD pathogenesis. We observed increased EV levels in the CSF of young transgenic APP/PS1 mice which correlated with high amyloid beta (Aβ) CSF levels at this age. The intracerebroventricular (icv) injection of Aβ oligomers (AβO) in wild-type mice revealed a significant increase of EVs in the CSF, signifying that the presence of CSF-AβO is sufficient to induce increased EV secretion. Using in vivo, in vitro and ex vivo approaches, we identified the CP as a major source of the CSF-EVs. Interestingly, AβO-induced, CP-derived EVs induced pro-inflammatory effects in mixed cortical cultures. Proteome analysis of these EVs revealed the presence of several pro-inflammatory proteins, including the complement protein C3. Strikingly, inhibition of EV production using GW4869 resulted in protection against acute AβO-induced cognitive decline. Further research into the underlying mechanisms of this EV secretion might open up novel therapeutic strategies to impact the pathogenesis and progression of AD.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsBlood-Brain BarrierCells, CulturedChoroid PlexusExtracellular VesiclesFemaleInjections, IntraventricularMiceMice, Inbred C57BLMice, TransgenicAmyloid beta-PeptidesAlzheimer’s diseaseBlood–cerebrospinal fluid barrierChoroid plexusComplementExtracellular vesicles

Identifiers

PMID34425919
PMCPMC8381545
OpenAlexW3195120015

What OpenQuestion holds

Textmetadata
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.