Cited by 87Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsNeurological Disease Mechanisms and Treatments

Chronic IL-1β-Mediated Neuroinflammation Mitigates Amyloid Pathology in a Mouse Model of Alzheimer’s Disease without Inducing Overt Neurodegeneration

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Matousek, Sarah B., Ghosh, Simantini, Shaftel, Solomon S., Kyrkanides, Stephanos, Olschowka, John A., O’Banion, M. Kerry·2012·Journal of Neuroimmune Pharmacology

Abstract

Neuroinflammation is a local tissue response to injurious stimuli in the central nervous system (CNS) and is characterized by glial reactivity, induction of cytokines and chemokines, and vascular permeability. The cytokine interleukin (IL)-1β is rapidly induced following CNS insult, and is chronically expressed in neurodegenerative disorders such as Alzheimer's disease (AD). We recently developed a novel method of sustained IL-1β production in the brain to study the link between IL-1β and AD pathogenesis. Utilizing this model, we have previously demonstrated reduction of plaque size and frequency accompanied by a robust neuroinflammatory response. These observations were limited to a single early time point in the course of AD plaque deposition and did not investigate other neurodegenerative endpoints. To extend these observations to other stages of disease progression and evaluate additional pathologic markers, we investigated the effects of age and duration of IL-1β overexpression in the APPswe/PS-1dE9 AD model on a congenic C57BL/6 background. We now report that IL1β overexpression leads to decreased 6E10 immunopositive plaque pathology regardless of age or duration. We also investigated whether IL-1β overexpression led to neuronal apoptosis or cholinergic axonal degeneration in the context of this AD model. Although we could demonstrate apoptosis of infiltrating inflammatory cells, we found no evidence for IL-1 associated apoptosis of neurons or cholinergic axon degeneration even after 5 months of chronic neuroinflammation. Together, these observations point to a neuroprotective role for IL-1β in AD neuropathogenesis.

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  • IL-1β does not influence Aβ production.

    “This is consistent with our previously published data showing that IL-1β does not influence Aβ production [4, 6, 7, 28].”

    From IL-1β-driven amyloid plaque clearance is associated with an expansion of transcriptionally reprogrammed microglia (2019) · cites this paper as [6]

    The Results section (page not provided) reports that IL-1β induction did not significantly alter soluble Aβ, full-length APP, or BACE-1 in the studied mouse model. The Discussion likewise reports no significant change in APP production or processing. These findings support the claim in this model, but not the unqualified statement that IL-1β does not influence Aβ production generally. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Sustained hippocampal IL-1β expression decreases amyloid plaque accumulation in APP/PS1 mice.

    “As previously described [28], APP/PS1 mice transduced with rAAV2-IL-1β showed significant reductions in hippocampal amyloid plaques compared to mice treated with rAAV2-Phe, as determined by immunohistochemical (IHC) analysis using both 6E10 staining and MX04 (Fig. 1b)”

    From IL-1β-driven amyloid plaque clearance is associated with an expansion of transcriptionally reprogrammed microglia (2019) · cites this paper as [6]

    The Results section reports significantly reduced hippocampal 6E10-positive plaques after sustained IL-1β upregulation in APP/PS1 mice, supporting the general claim. But this paper induced IL-1β using an IL-1βXAT model with FIV-Cre and an FIV-LacZ control; it does not establish the citing sentence’s rAAV2-IL-1β versus rAAV2-Phe comparison or its MX04 staining result. (LLM, conf=0.89)

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Research works printed but not linked: 1

  1. Reiserer RS Harrison FE Syverud DC McDonald MP Impaired spatial learning in the APPSwe + PSEN1DeltaE9 bigenic mouse model of Alzheimer's disease Genes Brain Behav 2007 6 54 65 17233641

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Authors
Matousek, S. B., Ghosh, S., Shaftel, S. S., Kyrkanides, S., Olschowka, J. A., & O’Banion, M. K.
Affiliations
  • University of Rochester Medicine (US)
  • Stony Brook University Hospital (US)
Corresponding author
O’Banion, M. Kerry
Venue
Journal of Neuroimmune Pharmacology
Published
2011-12-16
Volume
7
Issue
1
Pages
156-164
ISSN
  • 1557-1890 (ISSN-L)
  • 1557-1904
OpenAlex
W2052020187
Cited by
86
References
45
Citations by year
2026: 3 · 2025: 4 · 2024: 5 · 2023: 7 · 2022: 9 · 2021: 3 · 2020: 5 · 2019: 5 · 2018: 5 · 2017: 3 · 2016: 6 · 2015: 9 · 2014: 8 · 2013: 7 · 2012: 7
FWCI
4.80
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroimmune Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (F31AG031667, R01AG030149)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
IL-1β, neuroinflammation, Alzheimer's disease, amyloid plaques, neuroprotection, neuronal apoptosis, neurodegeneration, age-dependent effects
MeSH terms
Alzheimer Disease, Animals, Brain, Disease Models, Animal, Enzyme-Linked Immunosorbent Assay, Immunohistochemistry, Inflammation, Mice, Inbred C57BL, Mice, Transgenic, Neuroglia, Neurons, Blotting, Western, Amyloid beta-Peptides, Microscopy, Confocal, Mice, Interleukin-1beta

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