Evidence map›Paper›PMID 40562771›Full record

ArticleNature communications2025

AAV-based delivery of RNAi targeting ataxin-2 improves survival and pathology in TDP-43 mice.

Defne A Amado, Ashley B Robbins, Katherine R Whiteman, Alicia R Smith, Guillem Chillon, Yonghong Chen, Joshua A Fuller, Nicholas A Patty, Aleksandar Izda, Congsheng Cheng and 5 more

Erratum issuedAbstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

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

  1. Pooled it
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Defne A AmadoDepartment of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. defne@pennmedicine.upenn.edu.ORCID http://orcid.org/0000-0001-6202-3900
Ashley B RobbinsRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Katherine R WhitemanRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Alicia R SmithRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Guillem ChillonRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0003-2750-9037
Yonghong ChenRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Joshua A FullerRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.ORCID http://orcid.org/0009-0004-0618-2113
Nicholas A PattyRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.ORCID http://orcid.org/0009-0000-1240-1002
Aleksandar IzdaRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Congsheng ChengRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Shareen NelsonRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Abigail I DichterRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0003-3797-4987
Esteban O MazzoniDepartment of Cell Biology, NYU Grossman School of Medicine, New York, NY, 10016, USA.
Alex Mas MonteysRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Beverly L DavidsonRaymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA. davidsonbl@chop.edu.ORCID http://orcid.org/0000-0002-3715-6290

Funding

RNAi Therapy for Spinocerebellar Ataxia Type 1UH3NS094355 · NINDS · CHILDREN'S HOSP OF PHILADELPHIA · PI DAVIDSON, BEVERLY L. · 2017 to 2023
$6.4M
RNAi Therapy for Spinocerebellar Ataxia Type 1UH2NS094355 · NINDS · CHILDREN'S HOSP OF PHILADELPHIA · PI DAVIDSON, BEVERLY L. · 2016 to 2016
$1.1M
Viral-based Therapeutic Approaches for Reversal of ALS PathologyK08NS114106 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI AMADO, DEFNE AUDREY · 2020 to 2024
$1.1M
NINDS NIH HHS K08 NS114106NINDS NIH HHS UH2 NS094355NINDS NIH HHS UH3 NS094355
6 · The paper itself

Abstract

Amyotrophic lateral sclerosis (ALS) involves motor neuron death due to mislocalized TDP-43. Pathologic TDP-43 associates with stress granules (SGs), and lowering the SG-associated protein ataxin-2 (ATXN2) using Atxn2-targeting antisense oligonucleotides prolongs survival in TAR4/4 sporadic ALS mice but failed in clinical trials likely due to poor target engagement. Here we show that an AAV with potent motor neuron transduction delivering Atxn2-targeting miRNAs reduces Atxn2 throughout the central nervous system at doses 40x lower than published work. In TAR4/4 mice, miAtxn2 increased survival (50%) and strength, and reduced motor neuron death, inflammation, and phosphorylated TDP-43. TAR4/4 transcriptomic dysregulation recapitulated ALS gene signatures that were rescued by miAtxn2, identifying potential therapeutic mechanisms and biomarkers. In slow progressing hemizygous mice, miAtxn2 slowed disease progression, and in ALS patient-derived lower motor neurons, our AAV vector transduced >95% of cells and potently reduced ATXN2 at MOI 4 logs lower than previously reported. These data support AAV-RNAi targeting ATXN2 as a translatable therapy for sporadic ALS.

Indexed as

Amyotrophic Lateral SclerosisAtaxin-2DependovirusDNA-Binding ProteinsRNA InterferenceAnimalsDisease Models, AnimalFemaleGenetic TherapyGenetic VectorsHumansMaleMiceMicroRNAsMotor NeuronsAtaxin-2DNA-Binding ProteinsMicroRNAsTardbp protein, mouse

Identifiers

PMID40562771
PMCPMC12198377

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

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.