Cited by 576Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchParkinson's Disease Mechanisms and Treatments

Synergistic Interactions between Aβ, Tau, and α-Synuclein: Acceleration of Neuropathology and Cognitive Decline

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Clinton, Lani K., Blurton-Jones, Mathew, Myczek, Kristoffer, Trojanowski, John Q., LaFerla, Frank M.·2010·The Journal of Neuroscience

Abstract

Alzheimer's disease (AD), the most prevalent age-related neurodegenerative disorder, is characterized pathologically by the accumulation of β-amyloid (Aβ) plaques and tau-laden neurofibrillary tangles. Interestingly, up to 50% of AD cases exhibit a third prevalent neuropathology: the aggregation of α-synuclein into Lewy bodies. Importantly, the presence of Lewy body pathology in AD is associated with a more aggressive disease course and accelerated cognitive dysfunction. Thus, Aβ, tau, and α-synuclein may interact synergistically to promote the accumulation of each other. In this study, we used a genetic approach to generate a model that exhibits the combined pathologies of AD and dementia with Lewy bodies (DLB). To achieve this goal, we introduced a mutant human α-synuclein transgene into 3xTg-AD mice. As occurs in human disease, transgenic mice that develop both DLB and AD pathologies (DLB-AD mice) exhibit accelerated cognitive decline associated with a dramatic enhancement of Aβ, tau, and α-synuclein pathologies. Our findings also provide additional evidence that the accumulation of α-synuclein alone can significantly disrupt cognition. Together, our data support the notion that Aβ, tau, and α-synuclein interact in vivo to promote the aggregation and accumulation of each other and accelerate cognitive dysfunction.

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Crossref · 10.1523/jneurosci.0490-10.2010

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  • 3xTg-AD mice readily recapitulated Aβ and tau pathology.

    “The 3xTg-AD mice readily recapitulated Aβ and tau pathology, and after breeding with αSynA35T mice the resulting AD-LBV offspring exhibited accelerated cognitive deterioration, and enhanced accumulations of Aβ, αSyn, and tau pathology compared to 3xTg-AD or αSynA53T animals [199].”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [199]

  • AD-LBV mice exhibited increased levels of phosphorylated αSyn (pS129) at younger ages compared with 3xTg-AD or αSyn-A53T animals.

    “The AD-LBV mice exhibited increased levels of insoluble αSyn, phosphorylated αSyn (pS129), Aβ1-42, and tau at younger ages compared to the 3xTg-AD or αSyn-A53T animals [199].”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [199]

  • AD-LBV offspring exhibited enhanced accumulations of Aβ pathology compared with 3xTg-AD or αSynA53T animals.

    “The 3xTg-AD mice readily recapitulated Aβ and tau pathology, and after breeding with αSynA35T mice the resulting AD-LBV offspring exhibited accelerated cognitive deterioration, and enhanced accumulations of Aβ, αSyn, and tau pathology compared to 3xTg-AD or αSynA53T animals [199].”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [199]

  • AD-LBV offspring exhibited accelerated cognitive deterioration compared with 3xTg-AD or αSynA53T animals.

    “The 3xTg-AD mice readily recapitulated Aβ and tau pathology, and after breeding with αSynA35T mice the resulting AD-LBV offspring exhibited accelerated cognitive deterioration, and enhanced accumulations of Aβ, αSyn, and tau pathology compared to 3xTg-AD or αSynA53T animals [199].”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [199]

  • AD-LBV offspring exhibited enhanced accumulations of tau pathology compared with 3xTg-AD or αSynA53T animals.

    “The 3xTg-AD mice readily recapitulated Aβ and tau pathology, and after breeding with αSynA35T mice the resulting AD-LBV offspring exhibited accelerated cognitive deterioration, and enhanced accumulations of Aβ, αSyn, and tau pathology compared to 3xTg-AD or αSynA53T animals [199].”

    From α-synuclein in the pathophysiology of Alzheimer’s disease (2019) · cites this paper as [199]

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Authors
Clinton, L. K., Blurton-Jones, M., Myczek, K., Trojanowski, J. Q., & LaFerla, F. M.
Affiliations
  • University of California, Irvine (US)
  • University of Pennsylvania (US)
Corresponding author
LaFerla, Frank M.
Venue
The Journal of Neuroscience
Published
2010-05-26
Volume
30
Issue
21
Pages
7281-7289
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1973166472
Cited by
576
References
34
Citations by year
2026: 25 · 2025: 51 · 2024: 28 · 2023: 37 · 2022: 44 · 2021: 34 · 2020: 61 · 2019: 35 · 2018: 24 · 2017: 26 · 2016: 43 · 2015: 25 · 2014: 39 · 2013: 35 · 2012: 22
FWCI
22.10
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (T32 AG00096, AG00096, AG16573)
  • National Institute on Aging (AG00096, P50 AG 16573, T32 AG00096, AG027544, R29AG015409, AG 16573, K01AG029378, P50AG016573, R01AG027544, T32AG000096)
  • National Institute of Neurological Disorders and Stroke (NS053488, P50NS053488)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
Alzheimer's disease, dementia with Lewy bodies, alpha-synuclein, amyloid-beta, tau protein, Lewy bodies, cognitive decline, 3xTg-AD mice, transgenic mouse model, neurodegeneration
MeSH terms
Age Factors, Alzheimer Disease, Animals, Avoidance Learning, Brain, Cognition Disorders, Disease Models, Animal, Humans, Inhibition, Psychological, Mice, Inbred C57BL, Mice, Transgenic, Motor Activity, Mutation, Phosphorylation, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, Lewy Bodies, tau Proteins, Gene Expression Regulation, Developmental, Maze Learning, Mice, alpha-Synuclein, Presenilin-1

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