Cited by 119Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsNeurological Disease Mechanisms and Treatments

Neuroinflammation‐induced acceleration of amyloid deposition in the APPV717F transgenic mouse

Qiao, Xiaoxi, Cummins, David J., Paul, Steven M.·2001·European Journal of Neuroscience

Abstract

It has been postulated that neuroinflammation plays a critical role in the pathogenesis of Alzheimer's disease (AD). To directly test whether an inflammatory stimulus can accelerate amyloid deposition in vivo, we chronically administered the bacterial endotoxin, lipopolysaccharide (LPS), intracerebroventricularly (i.c.v.) to 2‐month‐old APP V717F+/+ transgenic (TG) mice, which overexpress a mutant human amyloid precursor protein (APP 717V‐F) with or without apolipoprotein E (apoE) for 2 weeks. Two weeks following central LPS administration a striking global reactive astrocytosis with increased GFAP immunoreactivity was found throughout the brains of all LPS‐treated wild‐type and transgenic mice including the contralateral brain hemisphere. Localized microglial activation was also evident from lectin immunostaining adjacent to the cannula track of LPS‐treated mice. Quantification of thioflavine‐S‐positive Aβ deposits revealed a marked acceleration of amyloid deposition in LPS‐treated APP V717F+/+–apoE+/+ mice compared to nontreated or vehicle‐treated APP V717F+/+–apoE+/+ mice (P = 0.005). By contrast, no amyloid deposits were detected by thioflavine‐S staining in LPS or vehicle‐treated apoE‐deficient APP V717F TG mice. Our data suggest that neuroinflammation can accelerate amyloid deposition in the APP V717F+/+ mouse model of AD and that this process requires the expression of apoE.

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Crossref · 10.1046/j.0953-816x.2001.01666.x

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Authors
Qiao, X., Cummins, D. J., & Paul, S. M.
Affiliations
  • Louisiana State University (US)
  • Eli Lilly (United States) (US)
Corresponding author
Paul, Steven M.
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2001-08
Volume
14
Issue
3
Pages
474-482
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2048400917
Cited by
119
References
43
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 5 · 2021: 3 · 2020: 7 · 2019: 3 · 2018: 5 · 2017: 1 · 2016: 4 · 2015: 4 · 2014: 5 · 2013: 3 · 2012: 11
FWCI
4.32
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
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
neuroinflammation, amyloid deposition, Alzheimer's disease, lipopolysaccharide, reactive astrogliosis, microglial activation, apolipoprotein E, amyloid precursor protein, intracerebroventricular administration
MeSH terms
Amyloid, Animals, Apolipoproteins E, Encephalitis, Fluorescent Dyes, Immunohistochemistry, Injections, Intraventricular, Lipopolysaccharides, Male, Mice, Transgenic, Neuroglia, RNA, Messenger, Thiazoles, Amyloid beta-Protein Precursor, Mice, Benzothiazoles

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