Cited by 261Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

A Dynamic Relationship between Intracellular and Extracellular Pools of Aβ

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Oddo, Salvatore, Caccamo, Antonella, Smith, Ian F., Green, Kim N., LaFerla, Frank M.·2006·The American Journal of Pathology

Abstract

The accumulation of the amyloid-beta peptide (Abeta) in the brain is considered to have a primary role in Alzheimer's disease (AD). In addition to the extracellular accumulation of Abeta in the parenchyma and cerebrovasculature, emerging evidence indicates that intraneuronal Abeta also plays a pathophysiological role in AD. It is unclear, however, if the intracellular and extracellular pools of Abeta are unrelated or connected. In these studies, we sought to establish a relationship between these two pools of Abeta. We identified an inverse relationship between intracellular and extracellular Abeta in the 3xTg-AD transgenic model of AD. Using an immunotherapy approach, we further found that extracellular Abeta was cleared before intracellular Abeta. After the antibody dissipated, however, the reappearance of extracellular plaques was preceded by the accumulation of intraneuronal Abeta. Taken together, these results provide strong experimental evidence that intraneuronal Abeta may serve as a source for some of the extracellular amyloid deposits.

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Crossref · 10.2353/ajpath.2006.050593

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  1. Tseng BP, Kitazawa M, LaFerla FM: Amyloid beta-peptide: the inside story. Curr Alzheimer Res 2004, 1:231-239
  2. Mori C, Spooner ET, Wisniewsk KE, Wisniewski TM, Yamaguch H, Saido TC, Tolan DR, Selkoe DJ, Lemere CA: Intraneuronal Abeta42 accumulation in Down syndrome brain. Amyloid 2002, 9:88 -102

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Authors
Oddo, S., Caccamo, A., Smith, I. F., Green, K. N., & LaFerla, F. M.
Affiliations
University of California, Irvine (US)
Corresponding author
LaFerla, Frank M.
Venue
The American Journal of Pathology
Publisher
Elsevier BV
Published
2006-01
Volume
168
Issue
1
Pages
184-194
ISSN
0002-9440 (ISSN-L)
OpenAlex
W2110998913
Cited by
261
References
45
Citations by year
2026: 4 · 2025: 11 · 2024: 21 · 2023: 12 · 2022: 8 · 2021: 5 · 2020: 9 · 2019: 14 · 2018: 15 · 2017: 8 · 2016: 3 · 2015: 10 · 2014: 8 · 2013: 11 · 2012: 11
FWCI
16.13
Type
journal article
Language
en
Open access
Locations
  • American Journal Of Pathology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Alzheimer's Association
  • National Institute on Aging (AG0212982)
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, intraneuronal amyloid-beta, Alzheimer's disease, immunotherapy, amyloid plaques, amyloid clearance
MeSH terms
Age Factors, Alzheimer Disease, Animals, Brain Chemistry, Disease Models, Animal, Enzyme-Linked Immunosorbent Assay, Immunohistochemistry, Intracellular Fluid, Mice, Transgenic, Neurons, Blotting, Western, Amyloid beta-Peptides, Extracellular Fluid, Mice

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