Cited by 418Alzheimer's disease research and treatmentsPrion Diseases and Protein MisfoldingDementia and Cognitive Impairment Research

Memory Impairment in Transgenic Alzheimer Mice Requires Cellular Prion Protein

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Gimbel, David A., Nygaard, Haakon B., Coffey, Erin E., Gunther, Erik C., Laurén, Juha, Gimbel, Zachary A., Strittmatter, Stephen M.·2010·The Journal of Neuroscience

Abstract

Soluble oligomers of the amyloid-β (Aβ) peptide are thought to play a key role in the pathophysiology of Alzheimer's disease (AD). Recently, we reported that synthetic Aβ oligomers bind to cellular prion protein (PrP C ) and that this interaction is required for suppression of synaptic plasticity in hippocampal slices by oligomeric Aβ peptide. We hypothesized that PrP C is essential for the ability of brain-derived Aβ to suppress cognitive function. Here, we crossed familial AD transgenes encoding APPswe and PSen1ΔE9 into Prnp −/− mice to examine the necessity of PrP C for AD-related phenotypes. Neither APP expression nor Aβ level is altered by PrP C absence in this transgenic AD model, and astrogliosis is unchanged. However, deletion of PrP C expression rescues 5-HT axonal degeneration, loss of synaptic markers, and early death in APPswe/PSen1ΔE9 transgenic mice. The AD transgenic mice with intact PrP C expression exhibit deficits in spatial learning and memory. Mice lacking PrP C , but containing Aβ plaque derived from APPswe/PSen1ΔE9 transgenes, show no detectable impairment of spatial learning and memory. Thus, deletion of PrP C expression dissociates Aβ accumulation from behavioral impairment in these AD mice, with the cognitive deficits selectively requiring PrP C .

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Authors
Gimbel, D. A., Nygaard, H. B., Coffey, E. E., Gunther, E. C., Laurén, J., Gimbel, Z. A., & Strittmatter, S. M.
Affiliations
Yale University (US)
Venue
The Journal of Neuroscience
Published
2010-05-05
Volume
30
Issue
18
Pages
6367-6374
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2121948289
Cited by
418
References
62
Citations by year
2026: 7 · 2025: 5 · 2024: 15 · 2023: 18 · 2022: 17 · 2021: 19 · 2020: 28 · 2019: 20 · 2018: 16 · 2017: 36 · 2016: 28 · 2015: 36 · 2014: 28 · 2013: 48 · 2012: 46
FWCI
31.37
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Alzheimer's Association
  • Yale University
  • Cure Alzheimer's Fund
  • Dr. Ralph and Marian Falk Medical Research Trust
  • National Institutes of Health
  • National Institute on Aging (R01AG034924)
  • National Institute on Drug Abuse (P30DA018343)
  • National Institute of Neurological Disorders and Stroke (R01NS042304, R01NS039962, R37NS033020, R01NS056485)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Prion Diseases and Protein Misfolding
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, cellular prion protein, amyloid-beta oligomers, APPswe, Prnp knockout mice, spatial learning and memory, synaptic plasticity, astrocyte activation, cognitive impairment, amyloid plaques
MeSH terms
Alzheimer Disease, Animals, Avoidance Learning, Brain, Disease Models, Animal, Memory, Mice, Inbred C57BL, Mice, Transgenic, Nerve Degeneration, Random Allocation, Serotonin, Survival Analysis, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, PrPC Proteins, Maze Learning, Mice, Presenilin-1

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