Cited by 565Neuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatmentsInflammasome and immune disorders

The role of interleukin-1 in neuroinflammation and Alzheimer disease: an evolving perspective

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Shaftel, Solomon S, Griffin, W Sue T, O'Banion, M Kerry·2008·Journal of Neuroinflammation

Abstract

Elevation of the proinflammatory cytokine Interleukin-1 (IL-1) is an integral part of the local tissue reaction to central nervous system (CNS) insult. The discovery of increased IL-1 levels in patients following acute injury and in chronic neurodegenerative disease laid the foundation for two decades of research that has provided important details regarding IL-1's biology and function in the CNS. IL-1 elevation is now recognized as a critical component of the brain's patterned response to insults, termed neuroinflammation, and of leukocyte recruitment to the CNS. These processes are believed to underlie IL-1's function in the setting of acute brain injury, where it has been ascribed potential roles in repair as well as in exacerbation of damage. Explorations of IL-1's role in chronic neurodegenerative disease have mainly focused on Alzheimer disease (AD), where indirect evidence has implicated it in disease pathogenesis. However, recent observations in animal models challenge earlier assumptions that IL-1 elevation and resulting neuroinflammatory processes play a purely detrimental role in AD, and prompt a need for new characterizations of IL-1 function. Potentially adaptive functions of IL-1 elevation in AD warrant further mechanistic studies, and provide evidence that enhancement of these effects may help to alleviate the pathologic burden of disease.

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  • Elevated levels of IL-1β in the brain can induce neuroinflammation, neurotoxicity and learning and memory impairment.

    “Elevated levels of IL-1β in the brain can itself induce neuroinflammation, neurotoxicity and learning and memory impairment [55, 74].”

    From Microglial function, INPP5D/SHIP1 signaling, and NLRP3 inflammasome activation: implications for Alzheimer’s disease (2023) · cites this paper as [74]

    The “IL-1β and neuroinflammation” section says brain exposure to IL-1β triggers a robust inflammatory response. “Learning, memory, and IL-1” says elevated IL-1 might impair learning and memory, but “Mechanisms of IL-1 induced neuronal damage” cautions that IL-1β does not generally cause direct neurotoxicity in the healthy adult rodent brain. The claim therefore overstates neurotoxicity and presents the qualified memory finding as certain; page numbers were not provided. (LLM, conf=0.90)

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Authors
Shaftel, S. S., Griffin, W. S. T., & O'Banion, M. K.
Affiliations
  • University of Rochester Medicine (US)
  • University of Arkansas for Medical Sciences (US)
Venue
Journal of Neuroinflammation
Published
2008-02-26
Volume
5
Issue
1
Pages
7-7
ISSN
1742-2094 (ISSN-L)
OpenAlex
W2015186493
Cited by
565
References
158
Citations by year
2026: 22 · 2025: 49 · 2024: 47 · 2023: 55 · 2022: 36 · 2021: 43 · 2020: 42 · 2019: 34 · 2018: 23 · 2017: 28 · 2016: 21 · 2015: 30 · 2014: 27 · 2013: 32 · 2012: 25
FWCI
1.46
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Neuroinflammation (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R21NS048522)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
interleukin-1, neuroinflammation, Alzheimer's disease, inflammatory cytokines, acute brain injury, neurodegenerative diseases, leukocyte recruitment
MeSH terms
Alzheimer Disease, Animals, Central Nervous System, Encephalitis, Humans, Interleukin-1, Leukocytes

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