Cited by 122Amyotrophic Lateral Sclerosis ResearchNeuroinflammation and Neurodegeneration MechanismsMultiple Sclerosis Research Studies

Modifying macrophages at the periphery has the capacity to change microglial reactivity and to extend ALS survival

Open access
Chiot, Aude, Zaïdi, Sakina, Iltis, Charlène, Ribon, Matthieu, Berriat, Félix, Schiaffino, Lorenzo, Jolly, Ariane, de la Grange, Pierre +6 more·2020·Nature Neuroscience

Abstract

Microglia and peripheral macrophages have both been implicated in amyotrophic lateral sclerosis (ALS), although their respective roles have yet to be determined. We now show that macrophages along peripheral motor neuron axons in mouse models and patients with ALS react to neurodegeneration. In ALS mice, peripheral myeloid cell infiltration into the spinal cord was limited and depended on disease duration. Targeted gene modulation of the reactive oxygen species pathway in peripheral myeloid cells of ALS mice, using cell replacement, reduced both peripheral macrophage and microglial activation, delayed symptoms and increased survival. Transcriptomics revealed that sciatic nerve macrophages and microglia reacted differently to neurodegeneration, with abrupt temporal changes in macrophages and progressive, unidirectional activation in microglia. Modifying peripheral macrophages suppressed proinflammatory microglial responses, with a shift toward neuronal support. Thus, modifying macrophages at the periphery has the capacity to influence disease progression and may be of therapeutic value for ALS.

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Crossref · 10.1038/s41593-020-00718-z

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Authors
Chiot, A., Zaïdi, S., Iltis, C., Ribon, M., Berriat, F., Schiaffino, L., Jolly, A., de la Grange, P., Mallat, M., Bohl, D., Millecamps, S., Seilhean, D., Lobsiger, C. S., & Boillée, S.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Verona (IT)
Corresponding author
Boillée, Séverine
Venue
Nature Neuroscience
Published
2020-10-19
Volume
23
Issue
11
Pages
1339-1351
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W3093292900
Cited by
122
References
65
Citations by year
2026: 8 · 2025: 19 · 2024: 24 · 2023: 21 · 2022: 22 · 2021: 26 · 2020: 2
FWCI
7.68
Type
journal article
Language
en
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
Funders
Agence Nationale de la Recherche (ANR-14-NEUR-0003, ANR-10-IAHU-0006)
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
amyotrophic lateral sclerosis, microglia, peripheral macrophages, myeloid cell infiltration, reactive oxygen species, motor neuron axons, neuroinflammation, neurodegeneration, microglial activation, transcriptomics
MeSH terms
Adult, Aged, Amyotrophic Lateral Sclerosis, Animals, Axons, Female, Humans, Macrophages, Male, Mice, Inbred C57BL, Mice, Transgenic, Middle Aged, Motor Neurons, Sciatic Nerve, Spinal Cord, Microglia

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