Cited by 565Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Aβ42 Is Essential for Parenchymal and Vascular Amyloid Deposition in Mice

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McGowan, Eileen, Pickford, Fiona, Kim, Jungsu, Onstead, Luisa, Eriksen, Jason, Yu, Cindy, Skipper, Lisa, Murphy, M. Paul +12 more·2005·Neuron

Abstract

Considerable circumstantial evidence suggests that Abeta42 is the initiating molecule in Alzheimer's disease (AD) pathogenesis. However, the absolute requirement for Abeta42 for amyloid deposition has never been demonstrated in vivo. We have addressed this by developing transgenic models that express Abeta1-40 or Abeta1-42 in the absence of human amyloid beta protein precursor (APP) overexpression. Mice expressing high levels of Abeta1-40 do not develop overt amyloid pathology. In contrast, mice expressing lower levels of Abeta1-42 accumulate insoluble Abeta1-42 and develop compact amyloid plaques, congophilic amyloid angiopathy (CAA), and diffuse Abeta deposits. When mice expressing Abeta1-42 are crossed with mutant APP (Tg2576) mice, there is also a massive increase in amyloid deposition. These data establish that Abeta1-42 is essential for amyloid deposition in the parenchyma and also in vessels.

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Crossref · 10.1016/j.neuron.2005.06.030

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Authors
McGowan, E., Pickford, F., Kim, J., Onstead, L., Eriksen, J., Yu, C., Skipper, L., Murphy, M. P., Beard, J., Das, P., Jansen, K., DeLucia, M., Lin, W.-L., Dolios, G., Wang, R., Eckman, C. B., Dickson, D. W., Hutton, M., Hardy, J., & Golde, T.
Affiliations
  • Mayo Clinic (US)
  • Icahn School of Medicine at Mount Sinai (US)
  • National Institutes of Health (US)
Corresponding author
  • McGowan, Eileen
  • Golde, Todd
Venue
Neuron
Publisher
Elsevier BV
Published
2005-07
Volume
47
Issue
2
Pages
191-199
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2020824841
Cited by
565
References
40
Citations by year
2026: 8 · 2025: 15 · 2024: 14 · 2023: 17 · 2022: 18 · 2021: 22 · 2020: 40 · 2019: 19 · 2018: 23 · 2017: 27 · 2016: 23 · 2015: 21 · 2014: 29 · 2013: 42 · 2012: 30
FWCI
20.25
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (submittedVersion)
  • PubMed Central (submittedVersion)
Funders
  • Mayo Clinic
  • Mayo Foundation for Medical Education and Research
  • Chinese Academy of Agricultural Sciences
  • National Institute on Aging (R01AG022595)
  • National Cancer Institute (CA88325, R24 CA088325)
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, Aβ40, Alzheimer's disease, amyloid deposition, amyloid plaques, vascular amyloid, APP, Tg2576 mice, transgenic mice, amyloid precursor protein
MeSH terms
Age Factors, Animals, Blood Vessels, Brain, Enzyme-Linked Immunosorbent Assay, Female, Glial Fibrillary Acidic Protein, Humans, Immunohistochemistry, Male, Mice, Transgenic, Mutation, Peptide Fragments, Pia Mater, Mass Spectrometry, Thiazoles, Blotting, Northern, Blotting, Western, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, Cerebral Amyloid Angiopathy, In Situ Hybridization, Microscopy, Electron, Transmission, Immunoprecipitation, Mice, Benzothiazoles, Plaque, Amyloid

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