Cited by 877Amyotrophic Lateral Sclerosis ResearchGenetic Neurodegenerative DiseasesAlzheimer's disease research and treatments

RNA Toxicity from the ALS/FTD C9ORF72 Expansion Is Mitigated by Antisense Intervention

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Donnelly, Christopher J., Zhang, Ping-Wu, Pham, Jacqueline T., Haeusler, Aaron R., Mistry, Nipun A., Vidensky, Svetlana, Daley, Elizabeth L., Poth, Erin M. +12 more·2013·Neuron

Abstract

A hexanucleotide GGGGCC repeat expansion in the noncoding region of the C9ORF72 gene is the most common genetic abnormality in familial and sporadic amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). The function of the C9ORF72 protein is unknown, as is the mechanism by which the repeat expansion could cause disease. Induced pluripotent stem cell (iPSC)-differentiated neurons from C9ORF72 ALS patients revealed disease-specific (1) intranuclear GGGGCCexp RNA foci, (2) dysregulated gene expression, (3) sequestration of GGGGCCexp RNA binding protein ADARB2, and (4) susceptibility to excitotoxicity. These pathological and pathogenic characteristics were confirmed in ALS brain and were mitigated with antisense oligonucleotide (ASO) therapeutics to the C9ORF72 transcript or repeat expansion despite the presence of repeat-associated non-ATG translation (RAN) products. These data indicate a toxic RNA gain-of-function mechanism as a cause of C9ORF72 ALS and provide candidate antisense therapeutics and candidate human pharmacodynamic markers for therapy.

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Crossref · 10.1016/j.neuron.2013.10.015

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  • The GGGGCC repeat expansion suppresses the production of C9ORF72 protein by inhibiting transcription.

    “The GGGGCC repeat expansion suppresses the production of C9ORF72 protein by inhibiting transcription (140, 153, 225, 369, 497, 520).”

    From Blood-Brain Barrier: From Physiology to Disease and Back (2019) · cites this paper as [153]

    The Results section (page not provided) reports approximately 50% lower C9ORF72 V1 and V2 RNA levels in patient CNS tissue and iPSC-derived neurons, with reduced pre-mRNA also observed in CNS tissue. It does not establish that transcription is inhibited, and it explicitly says whether the RNA changes correspond to lower C9ORF72 protein levels is uncertain because the protein could not be specifically quantified. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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Authors
Donnelly, C. J., Zhang, P.-W., Pham, J. T., Haeusler, A. R., Mistry, N. A., Vidensky, S., Daley, E. L., Poth, E. M., Hoover, B., Fines, D. M., Maragakis, N., Tienari, P. J., Petrucelli, L., Traynor, B. J., Wang, J., Rigo, F., Bennett, C. F., Blackshaw, S., Sattler, R., & Rothstein, J. D.
Affiliations
  • Johns Hopkins University (US)
  • University of Helsinki (FI)
  • Mayo Clinic in Florida (US)
  • National Institutes of Health (US)
  • Ionis Pharmaceuticals (United States) (US)
Corresponding author
  • Sattler, Rita
  • Rothstein, Jeffrey D.
Venue
Neuron
Publisher
Elsevier BV
Published
2013-10
Volume
80
Issue
2
Pages
415-428
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2114872355
Cited by
877
References
5
Citations by year
2026: 22 · 2025: 31 · 2024: 34 · 2023: 60 · 2022: 57 · 2021: 73 · 2020: 87 · 2019: 62 · 2018: 91 · 2017: 83 · 2016: 97 · 2015: 100 · 2014: 70 · 2013: 10
FWCI
58.64
Type
journal article
Language
en
Update notices
erratum (2013-11-20)
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01NS085207, R01NS074324)
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
C9orf72, GGGGCC repeat expansion, amyotrophic lateral sclerosis, frontotemporal dementia, antisense oligonucleotides, RNA gain-of-function toxicity, repeat-associated non-ATG translation, excitotoxicity, iPSC-derived neurons, pharmacodynamic biomarkers, RNA foci
MeSH terms
C9orf72 Protein, Adenosine Deaminase, Amyotrophic Lateral Sclerosis, Cell Count, Dose-Response Relationship, Drug, Humans, Neurons, Proteins, Repetitive Sequences, Nucleic Acid, RNA, Oligonucleotides, Antisense, RNA-Binding Proteins, Glutamic Acid, Induced Pluripotent Stem Cells, Frontotemporal Dementia

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