Evidence map›Paper›PMID 32345374›Full record

ArticleActa neuropathologica communications2020

Association of Aβ with ceramide-enriched astrosomes mediates Aβ neurotoxicity.

Ahmed Elsherbini, Alexander S Kirov, Michael B Dinkins, Guanghu Wang, Haiyan Qin, Zhihui Zhu, Priyanka Tripathi, Simone M Crivelli, Erhard Bieberich

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 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

52 citing papers in PubMed, 73 citations in OpenAlex.

  1. Trial
  2. Article
  3. A Novel Reporter Mouse for Astrocyte-Derived Extracellular Vesicles Reveals Enrichment of Cargo at Neuronal Mitochondria.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
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  7. Extracellular Vesicles in Tauopathies: Mechanisms and Applications.International journal of molecular sciences · 2026
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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

9 authors at 2 institutions in 1 country.

Ahmed ElsherbiniDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA.
Alexander S KirovDepartment of Neuroscience and Regenerative Medicine, Medical College of Georgia at Augusta University, 1120 15th Street, Augusta, 30912, GA, USA.
Michael B DinkinsDepartment of Neuroscience and Regenerative Medicine, Medical College of Georgia at Augusta University, 1120 15th Street, Augusta, 30912, GA, USA.
Guanghu WangDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA.
Haiyan QinDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA.
Zhihui ZhuDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA.
Priyanka TripathiDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA.
Simone M CrivelliDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA.
Erhard BieberichDepartment of Physiology, University of Kentucky College of Medicine, 800 Rose Street Room MS519, Lexington, KY, 40536, USA. erhard.bieberich@uky.edu.
University of Kentucky · USAugusta University · US

Funding

Function of ceramide in neurodegenerative diseaseR01AG034389 · NIA · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2010 to 2020
$3.6M
Regulation of Microglial Activation State by a Lipid TransporterR01AG064234 · NIA · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2020 to 2024
$1.9M
Regulation of cilia by ceramideR01NS095215 · NINDS · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2016 to 2019
$1.4M
TBI-induced exosome release accelerates Alzheimer's disease pathologyI01BX003643 · VA · VA MEDICAL CENTER - LEXINGTON, KY · PI BIEBERICH, ERHARD · 2020 to 2023
–
BLRD VA I01 BX003643NIA NIH HHS R01 AG034389NIA NIH HHS R01AG034389NIA NIH HHS R01 AG064234NIA NIH HHS R01AG064234NINDS NIH HHS R01 NS095215NINDS NIH HHS R01NS095215
6 · The paper itself

Abstract

Amyloid-β (Aβ) associates with extracellular vesicles termed exosomes. It is not clear whether and how exosomes modulate Aβ neurotoxicity in Alzheimer's disease (AD). We show here that brain tissue and serum from the transgenic mouse model of familial AD (5xFAD) and serum from AD patients contains ceramide-enriched and astrocyte-derived exosomes (termed astrosomes) that are associated with Aβ. In Neuro-2a cells, primary cultured neurons, and human induced pluripotent stem cell-derived neurons, Aβ-associated astrosomes from 5xFAD mice and AD patient serum were specifically transported to mitochondria, induced mitochondrial clustering, and upregulated the fission protein Drp-1 at a concentration corresponding to 5 femtomoles Aβ/L of medium. Aβ-associated astrosomes, but not wild type or control human serum exosomes, mediated binding of Aβ to voltage-dependent anion channel 1 (VDAC1) and subsequently, activated caspases. Aβ-associated astrosomes induced neurite fragmentation and neuronal cell death, suggesting that association with astrosomes substantially enhances Aβ neurotoxicity in AD and may comprise a novel target for therapy.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsApoptosisAstrocytesCeramidesExosomesHumansMiceMitochondriaNeuronsAmyloid beta-PeptidesCeramidesAmyloidAstrocytesCeramideExosomesMitochondria

Identifiers

PMID32345374
PMCPMC7189561
OpenAlexW3018591817

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.