Cited by 502Multiple Sclerosis Research StudiesNeurogenesis and neuroplasticity mechanismsNeuroinflammation and Neurodegeneration Mechanisms

Interleukin-1β Promotes Repair of the CNS

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Mason, Jeffrey L., Suzuki, Kinuko, Chaplin, David D., Matsushima, Glenn K.·2001·The Journal of Neuroscience

Abstract

Interleukin-1beta (IL-1beta) is a proinflammatory cytokine associated with the pathophysiology of demyelinating disorders such as multiple sclerosis and viral infections of the CNS. However, we demonstrate here that IL-1beta appears to promote remyelination in the adult CNS. In IL-1beta(-/-) mice, acute demyelination progressed similarly to wild-type mice and showed parallel mature oligodendrocyte depletion, microglia-macrophage accumulation, and the appearance of oligodendrocyte precursors. In contrast, IL-1beta(-/-) mice failed to remyelinate properly, and this appeared to correlate with a lack of insulin-like growth factor-1 (IGF-1) production by microglia-macrophages and astrocytes and to a profound delay of precursors to differentiate into mature oligodendrocytes. Thus, IL-1beta may be crucial to the repair of the CNS, presumably through the induction of astrocyte and microglia-macrophage-derived IGF-1.

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Crossref · 10.1523/jneurosci.21-18-07046.2001

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  • Accumulation of microglia and proliferation of OPC were not altered in IL-1β−/− mice.

    “Interestingly, accumulation of microglia and proliferation of OPC were not altered in the IL-1β −/− mice.”

    From Glial response during cuprizone-induced de- and remyelination in the CNS: lessons learned (2014) · cites this paper as Mason et al., 2001

    The results sections report similar microglia-macrophage numbers and similar accumulation of NG2-positive oligodendrocyte progenitors in IL-1β-deficient and wild-type mice after five weeks of cuprizone exposure. The Discussion says progenitor accumulation could result from migration and/or local proliferation; it does not establish that OPC proliferation itself was unaltered. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • In the cuprizone model, IL-1β was gradually up-regulated from the first week of cuprizone intoxication, then strongly increased at week 3 and sustained on this level until week 6.

    “In the cuprizone model IL-1β was gradually up-regulated from the first week of cuprizone intoxication, then strongly increased at week 3 and sustained on this level until week 6 (Mason et al., 2001).”

    From Glial response during cuprizone-induced de- and remyelination in the CNS: lessons learned (2014) · cites this paper as Mason et al., 2001

    The section “Expression of IL-1β precedes an increase in IGF-1 expression” reports a dramatic increase in IL-1β mRNA at week 3 that was sustained through week 6. It does not specify that up-regulation began in the first week or increased gradually before week 3. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Differentiation of OPC and thus remyelination are dramatically reduced in the absence of IL-1β.

    “In this study Mason and colleagues have shown that differentiation of OPC and thus, remyelination are dramatically reduced in absence of IL-1β”
  • IL-1β did not display any impact on depletion of oligodendrocytes following cuprizone treatment.

    “Additionally, IL-1β did not display any impact on depletion of oligodendrocytes following cuprizone treatment (Mason et al., 2001).”
  • IL-1beta and TNF-alpha can be harmful for cerebral elements but also play beneficial roles in the inflammatory response.

    “Such cytokines can thus be harmful for the cerebral elements (138) but they also play beneficial roles in the inflammatory response (161–163).”

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Authors
Mason, J. L., Suzuki, K., Chaplin, D. D., & Matsushima, G. K.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • Howard Hughes Medical Institute (US)
Venue
The Journal of Neuroscience
Published
2001-09-15
Volume
21
Issue
18
Pages
7046-7052
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2158064024
Cited by
502
References
46
Citations by year
2026: 10 · 2025: 7 · 2024: 11 · 2023: 13 · 2022: 13 · 2021: 14 · 2020: 22 · 2019: 20 · 2018: 10 · 2017: 15 · 2016: 18 · 2015: 20 · 2014: 23 · 2013: 21 · 2012: 17
FWCI
17.63
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • Multiple Sclerosis Society
  • National Institutes of Health (5r29ns035372-05)
  • National Institute of Neurological Disorders and Stroke (NS 24453, R01NS024453, NS-35372)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
IL-1β, remyelination, demyelination, oligodendrocyte differentiation, oligodendrocyte precursor cells, microglia/macrophages, astrocytes, insulin-like growth factor I, CNS repair, multiple sclerosis
MeSH terms
Animals, Antigens, Differentiation, Astrocytes, Cell Count, Central Nervous System, Chelating Agents, Corpus Callosum, Cuprizone, Demyelinating Diseases, Glutathione Transferase, Insulin-Like Growth Factor I, Interleukin-1, Isoenzymes, Macrophages, Mice, Inbred C57BL, Myelin Sheath, Oligodendroglia, Regeneration, RNA, Messenger, Stem Cells, Up-Regulation, Microglia, Mice, Knockout, Disease Progression, Mice, Glutathione S-Transferase pi

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