Evidence map›Paper›PMID 36127374›Full record

ArticleNature communications2022

Small soluble α-synuclein aggregates are the toxic species in Parkinson's disease.

Derya Emin, Yu P Zhang, Evgeniia Lobanova, Alyssa Miller, Xuecong Li, Zengjie Xia, Helen Dakin, Dimitrios I Sideris, Jeff Y L Lam, Rohan T Ranasinghe and 9 more

Abstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
137citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

137 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Cellular and systemic modifiers of alpha-synuclein proteostasis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
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  17. Nanoscale CabioRxiv : the preprint server for biology · 2026
    Article
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77 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

19 authors.

Derya EminYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0002-3853-664X
Yu P ZhangYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.
Evgeniia LobanovaYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.
Alyssa MillerYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.
Xuecong LiLaboratory of Organic Chemistry, Wageningen University and Research, Wageningen, Netherlands.ORCID 0000-0002-9662-8454
Zengjie XiaYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0002-5977-9691
Helen DakinYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0003-0571-5892
Dimitrios I SiderisYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.
Jeff Y L LamYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0001-7408-2342
Rohan T RanasingheYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.
Antonina KouliJohn van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
Yanyan ZhaoMolecular Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
Suman DeYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0003-1675-0773
Tuomas P J KnowlesYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0002-7879-0140
Michele VendruscoloYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0002-3616-1610
Francesco S RuggeriYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK.ORCID 0000-0002-1232-1907
Franklin I AigbirhioMolecular Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
Caroline H Williams-GrayJohn van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.ORCID 0000-0002-2648-9743
David KlenermanYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK. dk10012@cam.ac.uk.ORCID 0000-0001-7116-6954

Funding

Department of Health 146281Medical Research Council MR/R007446/1
6 · The paper itself

Abstract

Soluble α-synuclein aggregates varying in size, structure, and morphology have been closely linked to neuronal death in Parkinson's disease. However, the heterogeneity of different co-existing aggregate species makes it hard to isolate and study their individual toxic properties. Here, we show a reliable non-perturbative method to separate a heterogeneous mixture of protein aggregates by size. We find that aggregates of wild-type α-synuclein smaller than 200 nm in length, formed during an in vitro aggregation reaction, cause inflammation and permeabilization of single-liposome membranes and that larger aggregates are less toxic. Studying soluble aggregates extracted from post-mortem human brains also reveals that these aggregates are similar in size and structure to the smaller aggregates formed in aggregation reactions in the test tube. Furthermore, we find that the soluble aggregates present in Parkinson's disease brains are smaller, largely less than 100 nm, and more inflammatory compared to the larger aggregates present in control brains. This study suggests that the small non-fibrillar α-synuclein aggregates are the critical species driving neuroinflammation and disease progression.

Indexed as

alpha-SynucleinParkinson DiseaseBrainHumansLiposomesProtein Aggregatesalpha-SynucleinLiposomesProtein Aggregates

Identifiers

PMID36127374
PMCPMC9489799

What OpenQuestion holds

Textmetadata
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.