Evidence map›Paper›PMID 32641150›Full record

ArticleActa neuropathologica communications2020

Erythrocytic α-synuclein contained in microvesicles regulates astrocytic glutamate homeostasis: a new perspective on Parkinson's disease pathogenesis.

Lifu Sheng, Tessandra Stewart, Dishun Yang, Eric Thorland, David Soltys, Patrick Aro, Tarek Khrisat, Zhiying Xie, Na Li, Zongran Liu and 8 more

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

34 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Association between α-synuclein in plasma neuron-derived exosomes and clinical symptoms in Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Peripheral proteinopathy in neurodegenerative diseases.Translational neurodegeneration · 2025
    Review
  11. Astrocyte alterations in α-synucleinopathies.Frontiers in cellular neuroscience · 2025
    Review
  12. Review
  13. Article
  14. Review
  15. The Contribution of Type 2 Diabetes to Parkinson's Disease Aetiology.International journal of molecular sciences · 2024
    Review
  16. Article
  17. Review
  18. Review
  19. 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

18 authors at 4 institutions in 2 countries.

Lifu ShengDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.ORCID 0000-0002-1800-3627
Tessandra StewartDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Dishun YangDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Eric ThorlandDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
David SoltysDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Patrick AroDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Tarek KhrisatDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Zhiying XieDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Na LiDepartment of Pathology, Peking University Health Science Centre and Third Hospital, Beijing, China.
Zongran LiuDepartment of Pathology, Peking University Health Science Centre and Third Hospital, Beijing, China.
Chen TianDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Matthew BercowDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Junichi MatsumotoDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA.
Cyrus P ZabetianGeriatric Research, Education, and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA.
Elaine PeskindMental Illness Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.
Joseph F QuinnDepartment of Neurology, Oregon Health and Science University, Portland, OR, USA.
Min ShiDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA. mshi70@uw.edu.
Jing ZhangDepartment of Pathology, University of Washington School of Medicine, Seattle, Washington, USA. zhangj@uw.edu.
University of Washington · USPeking University · CNOregon Health & Science University · USUniversity of Puget Sound · US

Funding

THERAPEUTIC EFFECTS OF INTRA-NASAL INSULIN DETEMIRP50AG005136 · NIA · UNIVERSITY OF WASHINGTON · PI JAYADEY, SUMAN · 1985 to 2019
$57.2M
Furthering scientific understanding of mechanisms underlying resilience to the effects of AD pathology by incorporating state of the art quantification of gliosis, inflammation, & synaptic toxicityU01AG006781 · NIA · UNIVERSITY OF WASHINGTON · PI CRANE, PAUL K, LARSON, ERIC B · 1986 to 2020
$39.3M
University of Washington Alzheimer's Disease Research CenterP30AG066509 · NIA · UNIVERSITY OF WASHINGTON · PI SUMAN JAYADEV · 2020 to 2026
$29.0M
Udall Center Director's meeting poster awardP50NS062684 · NINDS · UNIVERSITY OF WASHINGTON · PI MONTINE, THOMAS J · 2009 to 2020
$18.3M
Peptide Biomarkers for Alzheimer DiseaseR01AG056711 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2017 to 2021
$4.1M
MicroRNAs in CNS-derived extracellular microvesicles as peripheral blood biomarkers for Alzheimer diseaseR01AG061383 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2019 to 2023
$3.4M
Peptide Biomarkers for Parkinson DiseaseU01NS091272 · NINDS · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2016 to 2020
$2.1M
Characterization and quantification of CNS cell specific extracellular microvesicles in bloodR33MH118160 · NIMH · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2020 to 2022
$2.0M
Extracellular vesicle transport of brain-derived proteins to the blood in Alzheimer diseaseR01AG068406 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2024 to 2024
$704k
Exploring microvesicular transport across the blood-brain barrier as a novel a-synuclein clearance mechanism and source of Parkinson's disease biomarkersR21NS104511 · NINDS · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2018 to 2019
$428k
Targeted drug delivery via CNS cell specific exosomes in neurodegenerative diseasesR21AG060142 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2019 to 2020
$428k
Characterization and quantification of CNS cell specific extracellular microvesicles in bloodR21MH118160 · NIMH · UNIVERSITY OF WASHINGTON · PI STEWART, TESSANDRA · 2018 to 2019
$424k
NIA NIH HHS P30 AG066509NIA NIH HHS P50 AG005136NIA NIH HHS R01 AG056711NIA NIH HHS R01 AG061383NIA NIH HHS R01 AG068406NIA NIH HHS R21 AG060142NIA NIH HHS U01 AG006781NIH HHS MH118160NIH HHS NS091272NIH HHS NS104511NIH HHS P50NS062684NIMH NIH HHS R21 MH118160NIMH NIH HHS R33 MH118160NINDS NIH HHS P50 NS062684NINDS NIH HHS R21 NS104511NINDS NIH HHS U01 NS091272
6 · The paper itself

Abstract

Parkinson's disease is a neurodegenerative disorder characterized by the transmission and accumulation of toxic species of α-synuclein (α-syn). Extracellular vesicles (EVs) are believed to play a vital role in the spread of toxic α-syn species. Recently, peripheral α-syn pathology has been investigated, but little attention has been devoted to erythrocytes, which contain abundant α-syn. In this study, we first demonstrated that erythrocyte-derived EVs isolated from Parkinson's disease patients carried elevated levels of oligomeric α-syn, compared to those from healthy controls. Moreover, human erythrocyte-derived EVs, when injected into peripheral blood in a mouse model of Parkinson's disease, were found to readily cross the blood-brain barrier (BBB). These EVs accumulated in astrocyte endfeet, a component of the BBB, where they impaired glutamate uptake, likely via interaction between excitatory amino acid transporter 2 (EAAT2) and oligomeric α-syn. These data suggest that erythrocyte-derived EVs and the oligomeric α-syn carried in them may play critical roles in the progression or even initiation of Parkinson's disease. Additionally, the mechanisms involved are attributable at least in part to dysfunction of astrocytes induced by these EVs. These observations provide new insight into the understanding of the mechanisms involved in Parkinson's disease.

Indexed as

alpha-SynucleinAnimalsAstrocytesCell-Derived MicroparticlesDisease ProgressionErythrocytesGlutamic AcidHomeostasisHumansMiceParkinson Diseasealpha-SynucleinGlutamic AcidAlpha-synucleinAstrocytesBlood-brain barrierExtracellular vesiclesGlutamateParkinson’s disease

Identifiers

PMID32641150
PMCPMC7346449
OpenAlexW3041958360

What OpenQuestion holds

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Registered trials

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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.