Cited by 245Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Alzheimer's disease-like pathological features in transgenic mice expressing the APP intracellular domain

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Ghosal, Kaushik, Vogt, Daniel L., Liang, Man, Shen, Yong, Lamb, Bruce T., Pimplikar, Sanjay W.·2009·Proceedings of the National Academy of Sciences

Abstract

The hypothesis that amyloid-β (Aβ) peptides are the primary cause of Alzheimer's disease (AD) remains the best supported theory of AD pathogenesis. Yet, many observations are inconsistent with the hypothesis. Aβ peptides are generated when amyloid precursor protein (APP) is cleaved by presenilins, a process that also produces APP intracellular domain (AICD). We previously generated AICD-overexpressing transgenic mice that showed abnormal activation of GSK-3β, a pathological feature of AD. We now report that these mice exhibit additional AD-like characteristics, including hyperphosphorylation and aggregation of tau, neurodegeneration and working memory deficits that are prevented by treatment with lithium, a GSK-3β inhibitor. Consistent with its potential role in AD pathogenesis, we find AICD levels to be elevated in brains from AD patients. The in vivo findings that AICD can contribute to AD pathology independently of Aβ have important therapeutic implications and may explain some observations that are discordant with the amyloid hypothesis.

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  • Additional APP cleavage products are capable of causing toxicity independent of Aβ.

    “These additional APP cleavage products are also capable of causing toxicity independent of Aβ [45, 105].”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [45]

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Authors
Ghosal, K., Vogt, D. L., Liang, M., Shen, Y., Lamb, B. T., & Pimplikar, S. W.
Affiliations
  • Cleveland Clinic (US)
  • Banner Sun Health Research Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
2009-10-27
Volume
106
Issue
43
Pages
18367-18372
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2099240139
Cited by
245
References
36
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 6 · 2022: 9 · 2021: 7 · 2020: 17 · 2019: 19 · 2018: 9 · 2017: 15 · 2016: 23 · 2015: 18 · 2014: 19 · 2013: 17 · 2012: 23
FWCI
16.57
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Alzheimer's Association
  • National Institutes of Health
  • National Institute on Aging (R01AG026146)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD007104)
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
Alzheimer's disease, APP intracellular domain, transgenic mice, amyloid-beta, amyloid precursor protein, presenilin, GSK3β, tau hyperphosphorylation, tau aggregation, neurodegeneration, working memory deficits, lithium, amyloid hypothesis, AD pathogenesis
MeSH terms
Aging, Alzheimer Disease, Animals, Behavior, Animal, Brain, Humans, Memory, Mice, Transgenic, Phosphorylation, Amyloid beta-Protein Precursor, tau Proteins, Protein Structure, Tertiary, Lithium Compounds, Intracellular Space, Mice

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