Cited by 431Amyotrophic Lateral Sclerosis ResearchAutophagy in Disease and TherapyAlzheimer's disease research and treatments

Autophagy induction enhances TDP43 turnover and survival in neuronal ALS models

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Barmada, Sami J, Serio, Andrea, Arjun, Arpana, Bilican, Bilada, Daub, Aaron, Ando, D Michael, Tsvetkov, Andrey, Pleiss, Michael +5 more·2014·Nature Chemical Biology

Abstract

Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) have distinct clinical features but a common pathology--cytoplasmic inclusions rich in transactive response element DNA-binding protein of 43 kDa (TDP43). Rare TDP43 mutations cause ALS or FTD, but abnormal TDP43 levels and localization may cause disease even if TDP43 lacks a mutation. Here we show that individual neurons vary in their ability to clear TDP43 and are exquisitely sensitive to TDP43 levels. To measure TDP43 clearance, we developed and validated a single-cell optical method that overcomes the confounding effects of aggregation and toxicity and discovered that pathogenic mutations shorten TDP43 half-life. New compounds that stimulate autophagy improved TDP43 clearance and localization and enhanced survival in primary murine neurons and in human stem cell-derived neurons and astrocytes harboring mutant TDP43. These findings indicate that the levels and localization of TDP43 critically determine neurotoxicity and show that autophagy induction mitigates neurodegeneration by acting directly on TDP43 clearance.

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Authors
Barmada, S. J., Serio, A., Arjun, A., Bilican, B., Daub, A., Ando, D. M., Tsvetkov, A., Pleiss, M., Li, X., Peisach, D., Shaw, C., Chandran, S., & Finkbeiner, S.
Affiliations
  • Gladstone Institutes (US)
  • MRC Centre for Regenerative Medicine (GB)
  • University of Michigan (US)
  • King's College London (GB)
Corresponding author
Finkbeiner, Steven
Venue
Nature Chemical Biology
Published
2014-06-29
Volume
10
Issue
8
Pages
677-685
ISSN
  • 1552-4450 (ISSN-L)
  • 1552-4469
OpenAlex
W1999522052
Cited by
431
References
50
Citations by year
2026: 26 · 2025: 26 · 2024: 24 · 2023: 28 · 2022: 26 · 2021: 56 · 2020: 52 · 2019: 42 · 2018: 42 · 2017: 36 · 2016: 26 · 2015: 39 · 2014: 7
FWCI
23.46
Type
journal article
Language
en
Open access
Locations
  • Nature Chemical Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Gladstone Institutes
  • Motor Neurone Disease Association (CHANDRAN/MAR10/982-797)
  • National Institutes of Health (1c06rr018928-01)
  • National Institute of Mental Health (U01MH105035, U01 MH1050135)
  • National Institute of Neurological Disorders and Stroke (U24NS078370, K08NS072233, R01NS039074, R01NS083390, R43NS081844)
  • National Center for Research Resources (C06-RR-018928)
  • Robert Packard Center for ALS Research, Johns Hopkins University
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
autophagy, TDP-43, amyotrophic lateral sclerosis, frontotemporal dementia, protein turnover, neurodegeneration, stem cell-derived neurons, astrocytes, neurotoxicity
MeSH terms
Amino Acid Sequence, Amyotrophic Lateral Sclerosis, Animals, Astrocytes, Autophagy, Cell Survival, Cells, Cultured, DNA-Binding Proteins, Fluphenazine, Half-Life, Humans, Methotrimeprazine, Microtubule-Associated Proteins, Molecular Sequence Data, Mutation, Neurons, Stem Cells, Reproducibility of Results, Mice, Rats, Small Molecule Libraries, Induced Pluripotent Stem Cells, Single-Cell Analysis

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