Evidence map›Paper›PMID 35318803›Full record

ArticleAging cell2022

Acidic nanoparticles protect against α-synuclein-induced neurodegeneration through the restoration of lysosomal function.

Marie-Laure Arotcarena, Federico N Soria, Anthony Cunha, Evelyne Doudnikoff, Geoffrey Prévot, Jonathan Daniel, Mireille Blanchard-Desce, Philippe Barthélémy, Erwan Bezard, Sylvie Crauste-Manciet and 1 more

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
5.5field-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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

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  15. Autophagy-lysosomal pathway in neurodegeneration.Molecular neurodegeneration advances · 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

11 authors at 1 institution in 3 countries.

Marie-Laure ArotcarenaUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.ORCID 0000-0002-1306-3700
Federico N SoriaUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.ORCID 0000-0003-1229-9663
Anthony CunhaUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.ORCID 0000-0003-0946-4701
Evelyne DoudnikoffUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.
Geoffrey PrévotUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.
Jonathan DanielUniversité de Bordeaux, Institut des Sciences Moléculaires, CNRS, UMR 5255, Talence, France.
Mireille Blanchard-DesceUniversité de Bordeaux, Institut des Sciences Moléculaires, CNRS, UMR 5255, Talence, France.
Philippe BarthélémyUniversité de Bordeaux, INSERM U1212, CNRS, UMR 5320, ARNA ARN: Régulations Naturelle et Artificielle, ChemBioPharm, Bordeaux, France.
Erwan BezardUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.
Sylvie Crauste-MancietUniversité de Bordeaux, INSERM U1212, CNRS, UMR 5320, ARNA ARN: Régulations Naturelle et Artificielle, ChemBioPharm, Bordeaux, France.
Benjamin DehayUniv. Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, France.ORCID 0000-0003-1723-9045
Centre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) is an age-related neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra, associated with the accumulation of misfolded α-synuclein and lysosomal impairment, two events deemed interconnected. Protein aggregation is linked to defects in degradation systems such as the autophagy-lysosomal pathway, while lysosomal dysfunction is partly related to compromised acidification. We have recently proven that acidic nanoparticles (aNPs) can re-acidify lysosomes and ameliorate neurotoxin-mediated dopaminergic neurodegeneration in mice. However, no lysosome-targeted approach has yet been tested in synucleinopathy models in vivo. Here, we show that aNPs increase α-synuclein degradation through enhancing lysosomal activity in vitro. We further demonstrate in vivo that aNPs protect nigral dopaminergic neurons from cell death, ameliorate α-synuclein pathology, and restore lysosomal function in mice injected with PD patient-derived Lewy body extracts carrying toxic α-synuclein aggregates. Our results support lysosomal re-acidification as a disease-modifying strategy for the treatment of PD and other age-related proteinopathies.

Indexed as

NanoparticlesParkinson Diseasealpha-SynucleinAnimalsHumansLysosomesMiceSubstantia Nigraalpha-Synucleinacidic nanoparticlesalpha-synuclein, neurodegeneration, therapeuticsin vivolysosomal restorationParkinson's disease

Identifiers

PMID35318803
PMCPMC9009122
OpenAlexW4221069128

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.