Evidence map›Paper›PMID 28903781›Full record

ArticleActa neuropathologica communications2017

Transmission of α-synuclein-containing erythrocyte-derived extracellular vesicles across the blood-brain barrier via adsorptive mediated transcytosis: another mechanism for initiation and progression of Parkinson's disease?

Junichi Matsumoto, Tessandra Stewart, Lifu Sheng, Na Li, Kristin Bullock, Ning Song, Min Shi, William A Banks, Jing Zhang

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 170 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed, 1 pooled it
8.2field-weighted citation impact, top 2% 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

170 citing papers in PubMed, 1 synthesis or guideline pooled it, 272 citations in OpenAlex.

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110 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 2 countries.

Junichi MatsumotoDepartment of Pathology, University of Washington School of Medicine, Seattle, WA, 98104, USA.
Tessandra StewartDepartment of Pathology, University of Washington School of Medicine, Seattle, WA, 98104, USA.
Lifu ShengDepartment of Pathology, University of Washington School of Medicine, Seattle, WA, 98104, USA.
Na LiDepartment of Pathology, Peking University Health Science Centers, Beijing, 100191, China.
Kristin BullockGeriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.
Ning SongDepartment of Pathology, University of Washington School of Medicine, Seattle, WA, 98104, USA.
Min ShiDepartment of Pathology, University of Washington School of Medicine, Seattle, WA, 98104, USA.
William A BanksGeriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.
Jing ZhangDepartment of Pathology, University of Washington School of Medicine, Seattle, WA, 98104, USA. zhangj@uw.edu.
University of Washington · USPeking University · CNUniversity of Puget Sound · US

Funding

Large Scale Biomarker Discovery and Validation for Parkinsons DiseaseU01NS082137 · NINDS · UNIVERSITY OF WASHINGTON · PI ZHANG, JING · 2012 to 2016
$6.0M
Peptide Biomarkers for Alzheimer DiseaseR01AG056711 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2017 to 2021
$4.1M
Peptide Biomarkers for Parkinson DiseaseU01NS091272 · NINDS · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2016 to 2020
$2.1M
Interaction of alpha-synuclein and neurotoxicants with Mac1-NADPH oxidaseR01ES019277 · NIEHS · UNIVERSITY OF WASHINGTON · PI ZHANG, JING · 2011 to 2015
$2.0M
Microglial Phox Activity In Parkinson's DiseaseR01ES016873 · NIEHS · UNIVERSITY OF WASHINGTON · PI ZHANG, JING · 2010 to 2014
$1.7M
NIA NIH HHS R01 AG056711NIEHS NIH HHS R01 ES016873NIEHS NIH HHS R01 ES019277NINDS NIH HHS U01 NS082137NINDS NIH HHS U01 NS091272
6 · The paper itself

Abstract

Parkinson's disease (PD) pathophysiology develops in part from the formation, transmission, and aggregation of toxic species of the protein α-synuclein (α-syn). Recent evidence suggests that extracellular vesicles (EVs) may play a vital role in the transport of toxic α-syn between brain regions. Moreover, increasing evidence has highlighted the participation of peripheral molecules, particularly inflammatory species, which may influence or exacerbate the development of PD-related changes to the central nervous system (CNS), although detailed characterization of these species remains to be completed. Despite these findings, little attention has been devoted to erythrocytes, which contain α-syn concentrations ~1000-fold higher than the cerebrospinal fluid, as a source of potentially pathogenic α-syn. Here, we demonstrate that erythrocytes produce α-syn-rich EVs, which can cross the BBB, particularly under inflammatory conditions provoked by peripheral administration of lipopolysaccharide. This transport likely occurs via adsorptive-mediated transcytosis, with EVs that transit the BBB co-localizing with brain microglia. Examination of microglial reactivity upon exposure to α-syn-containing erythrocyte EVs in vitro and in vivo revealed that uptake provoked an increase in microglial inflammatory responses. EVs derived from the erythrocytes of PD patients elicited stronger responses than did those of control subjects, suggesting that inherent characteristics of EVs arising in the periphery might contribute to, or even initiate, CNS α-syn-related pathology. These results provide new insight into the mechanisms by which the brain and periphery communicate throughout the process of synucleinopathy pathogenesis.

Indexed as

Transcytosisalpha-SynucleinAnimalsBlood-Brain BarrierCapillary PermeabilityCell Culture TechniquesCell LineDisease ProgressionErythrocytesExtracellular VesiclesLipopolysaccharidesMaleMiceMicrogliaModels, AnimalParkinson Diseasealpha-SynucleinLipopolysaccharidesSNCA protein, humanAlpha-synucleinBlood-brain barrierExtracellular vesiclesInflammationMicrogliaParkinson’s disease

Identifiers

PMID28903781
PMCPMC5598000
OpenAlexW2756085402

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.