Evidence map›Paper›PMID 37076542›Full record

ArticleNature communications2023

Disrupting the α-synuclein-ESCRT interaction with a peptide inhibitor mitigates neurodegeneration in preclinical models of Parkinson's disease.

Satra Nim, Darren M O'Hara, Carles Corbi-Verge, Albert Perez-Riba, Kazuko Fujisawa, Minesh Kapadia, Hien Chau, Federica Albanese, Grishma Pawar, Mitchell L De Snoo and 8 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
9.6field-weighted citation impact, top 1% 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

32 citing papers in PubMed, 46 citations in OpenAlex.

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  18. Studying the mechanisms of neurodegeneration:Frontiers in cellular neuroscience · 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

18 authors at 3 institutions in 2 countries.

Satra Nim *Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-7791-1238
Darren M O'Hara *Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.ORCID 0000-0002-0766-2061
Carles Corbi-VergeDonnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-7654-4405
Albert Perez-RibaDonnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada.
Kazuko FujisawaKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.
Minesh KapadiaKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.
Hien ChauKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.
Federica AlbaneseKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.
Grishma PawarKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.
Mitchell L De SnooKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.ORCID 0000-0002-2057-7419
Sophie G NganaKrembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.
Jisun KimDonnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-4863-9773
Omar M A El-AgnafNeurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar.
Enrico RennellaDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
Lewis E KayDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
Suneil K Kalia *Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada. suneil.kalia@utoronto.ca.ORCID 0000-0003-2054-1915
Lorraine V Kalia *Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada. lorraine.kalia@utoronto.ca.ORCID 0000-0002-9384-1305
Philip M Kim *Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada. pi@kimlab.org.ORCID 0000-0003-3683-152X
University Health Network · CAUniversity of Toronto · CAHamad bin Khalifa University · QA

Funding

Parkinson's UK K-1405
6 · The paper itself

Abstract

Accumulation of α-synuclein into toxic oligomers or fibrils is implicated in dopaminergic neurodegeneration in Parkinson's disease. Here we performed a high-throughput, proteome-wide peptide screen to identify protein-protein interaction inhibitors that reduce α-synuclein oligomer levels and their associated cytotoxicity. We find that the most potent peptide inhibitor disrupts the direct interaction between the C-terminal region of α-synuclein and CHarged Multivesicular body Protein 2B (CHMP2B), a component of the Endosomal Sorting Complex Required for Transport-III (ESCRT-III). We show that α-synuclein impedes endolysosomal activity via this interaction, thereby inhibiting its own degradation. Conversely, the peptide inhibitor restores endolysosomal function and thereby decreases α-synuclein levels in multiple models, including female and male human cells harboring disease-causing α-synuclein mutations. Furthermore, the peptide inhibitor protects dopaminergic neurons from α-synuclein-mediated degeneration in hermaphroditic C. elegans and preclinical Parkinson's disease models using female rats. Thus, the α-synuclein-CHMP2B interaction is a potential therapeutic target for neurodegenerative disorders.

Indexed as

Parkinson Diseasealpha-SynucleinAnimalsCaenorhabditis elegansDopaminergic NeuronsEndosomal Sorting Complexes Required for TransportFemaleHumansMalePeptidesRatsalpha-SynucleinEndosomal Sorting Complexes Required for TransportPeptides

Identifiers

PMID37076542
PMCPMC10115881
OpenAlexW4366390682

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.