Cited by 72Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Aβ42 neurotoxicity in primary co-cultures: effect of apoE isoform and Aβ conformation

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Manelli, Arlene M., Bulfinch, Lindsey C., Sullivan, Patrick M., LaDu, Mary Jo·2007·Neurobiology of Aging

Abstract

Autosomal dominant mutations that increase amyloid-beta(1-42) (Abeta42) cause familial Alzheimer's disease (AD), and the most common genetic risk factor for AD is the presence of the epsilon4 allele of apolipoprotein E (apoE). Previously, we characterized stable preparations of Abeta42 oligomers and fibrils and reported that oligomers induced a 10-fold greater increase in neurotoxicity than fibrils in Neuro-2A cells. To determine the effects of apoE genotype on Abeta42 oligomer- and fibril-induced neurotoxicity in vitro, we co-cultured wild type (WT) neurons with glia from WT, apoE-knockout (apoE-KO), and human apoE2-, E3-, and E4-targeted replacement (TR) mice. Dose-dependent neurotoxicity was induced by oligomeric Abeta42 with a ranking order of apoE4-TR>KO=apoE2-TR=apoE3-TR>WT. Neurotoxicity induced by staurosporine or glutamate were not affected by apoE genotype, indicating specificity for oligomeric Abeta42-induced neurotoxicity. These in vitro data demonstrate a gain of negative function for apoE4, synergistic with oligomeric Abeta42, in mediating neurotoxicity.

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Crossref · 10.1016/j.neurobiolaging.2006.05.024

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Research works printed but not linked: 2

  1. [47]Manelli AM, Sullivan PM, LaDu MJ. Amyloid-beta1–42 induced neurotoxicity in cells co-cultured with glia from apoE targeted replacement mice. Program No. 407.18. 2003 [Google Scholar]
  2. [48]Manelli AM, Sullivan PM, LaDu MJ. Effect of Abeta structure and human apoE isoform on primary co-cultures of neurons and glia. Program No. 442.2. 2004 [Google Scholar]

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Authors
Manelli, A. M., Bulfinch, L. C., Sullivan, P. M., & LaDu, M. J.
Affiliations
  • Northwestern University (US)
  • University of Illinois Chicago (US)
  • Duke University (US)
Corresponding author
LaDu, Mary Jo
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2007-08
Volume
28
Issue
8
Pages
1139-1147
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2148809657
Cited by
72
References
90
Citations by year
2026: 1 · 2024: 3 · 2023: 1 · 2022: 6 · 2021: 4 · 2020: 2 · 2018: 5 · 2017: 3 · 2016: 3 · 2015: 2 · 2014: 3 · 2013: 5 · 2012: 5
FWCI
3.70
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (R01AG019121, P01AG021184)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
amyloid-beta 42, APOE isoforms, APOE ε4, neurotoxicity, amyloid oligomers, amyloid fibrils, Alzheimer's disease, ApoE-deficient mice, familial Alzheimer's disease
MeSH terms
Adenosine Triphosphate, Animals, Animals, Newborn, Apolipoproteins E, Cell Survival, Cells, Cultured, Cerebral Cortex, Dose-Response Relationship, Drug, Embryo, Mammalian, Female, Mice, Inbred C57BL, Mice, Transgenic, Neuroglia, Neurons, Peptide Fragments, Pregnancy, Protein Conformation, Time Factors, Amyloid beta-Peptides, Coculture Techniques, Protein Isoforms, Mice

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