Cited by 1,220Amyotrophic Lateral Sclerosis ResearchAlzheimer's disease research and treatmentsHereditary Neurological Disorders

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Astrocytes expressing ALS-linked mutated SOD1 release factors selectively toxic to motor neurons

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Abstract

Mutations in superoxide dismutase-1 (SOD1) cause a form of the fatal paralytic disorder amyotrophic lateral sclerosis (ALS), presumably by a combination of cell-autonomous and non-cell-autonomous processes. Here, we show that expression of mutated human SOD1 in primary mouse spinal motor neurons does not provoke motor neuron degeneration. Conversely, rodent astrocytes expressing mutated SOD1 kill spinal primary and embryonic mouse stem cell-derived motor neurons. This is triggered by soluble toxic factor(s) through a Bax-dependent mechanism. However, mutant astrocytes do not cause the death of spinal GABAergic or dorsal root ganglion neurons or of embryonic stem cell-derived interneurons. In contrast to astrocytes, fibroblasts, microglia, cortical neurons and myocytes expressing mutated SOD1 do not cause overt neurotoxicity. These findings indicate that astrocytes may play a role in the specific degeneration of spinal motor neurons in ALS. Identification of the astrocyte-derived soluble factor(s) may have far-reaching implications for ALS from both a pathogenic and therapeutic standpoint.

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Metadata

Authors
Nagai, M., Re, D. B., Nagata, T., Chalazonitis, A., Jessell, T. M., Wichterle, H., & Przedborski, S.
Affiliations
  • Columbia University (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Przedborski, Serge
Venue
Nature Neuroscience
Published
2007-04-15
Volume
10
Issue
5
Pages
615-622
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2107660300
Cited by
1,220
References
39
Citations by year
2026: 22 · 2025: 31 · 2024: 59 · 2023: 52 · 2022: 50 · 2021: 52 · 2020: 65 · 2019: 53 · 2018: 58 · 2017: 72 · 2016: 53 · 2015: 64 · 2014: 81 · 2013: 84 · 2012: 89
FWCI
57.88
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Muscular Dystrophy Association
  • National Institutes of Health
  • National Institute on Aging (R01AG021617, AG21617)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK58056, R01DK058056)
  • National Institute of Neurological Disorders and Stroke (NS-11766, P01NS011766, R01NS042269, P50NS038370, NS 42269, NS38370)
  • National Institute of Environmental Health Sciences (R21ES013177, ES013177)
Topics
  • Health Sciences › Medicine › Clinical Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Hereditary Neurological Disorders
Keywords
amyotrophic lateral sclerosis, SOD1 mutations, astrocytes, motor neuron degeneration, non-cell autonomous neurodegeneration, spinal motoneurons
MeSH terms
Amyotrophic Lateral Sclerosis, Animals, Astrocytes, Cell Survival, Cells, Cultured, Disease Models, Animal, Dose-Response Relationship, Drug, Embryo, Mammalian, Enzyme Inhibitors, Ganglia, Spinal, Humans, Mice, Transgenic, Motor Neurons, Mutation, Nerve Tissue Proteins, Superoxide Dismutase, Culture Media, Conditioned, In Situ Nick-End Labeling, Green Fluorescent Proteins, Mice, Embryonic Stem Cells

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