Cited by 63Alzheimer's disease research and treatmentsIntracerebral and Subarachnoid Hemorrhage ResearchDementia and Cognitive Impairment Research

Capillary CAA and perivascular Aβ-deposition: Two distinct features of Alzheimer's disease pathology

Attems, Johannes, Yamaguchi, Haruyasu, Saido, Takaomi C., Thal, Dietmar Rudolf·2010·Journal of the Neurological Sciences

Abstract

Cerebral amyloid angiopathy (CAA) is frequently seen in Alzheimer's disease (AD) cases and represents one of its histopathological hallmarks. CAA is characterized by amyloid β-protein (Aβ) deposits within vessel walls. In addition to arteries and veins capillaries can also be affected. Aβ deposition into the capillary wall is, thereby, known as capillary CAA (capCAA) and strongly associated with the apolipoprotein E APOEε4 allele as a risk factor. Aβ deposits along the pericapillary glia limitans are described as pericapillary Aβ (pericapAβ: synonymous with pericapillary CAA in other studies). Here, we studied the relationship between pericapAβ and capCAA in 58 human autopsy cases. Although pericapAβ and capCAA were more frequently found in AD cases compared to controls and although they exhibited a correlation to one another, detailed analysis revealed that there is a significant number of cases with pericapAβ lacking capCAA and vice versa. Moreover, single capillaries show either both pathologies or pericapAβ or capCAA only. There was no local association between these pathologies when analyzing multiple capillaries in each given case. Moreover, pericapAβ predominantly exhibited Aβ(42) whereas capCAA contained both Aβ(42) and Aβ(40). These differences as well as differences in the related astroglial reaction indicate that pericapAβ and capCAA are not directly linked. PericapAβ appears to represent initial Aβ accumulation along the glia limitans that is involved in the perivascular drainage of apoE and Aβ regardless of the APOE genotype whereas capCAA could be explained by a limited transendothelial clearance of apoE4-Aβ complexes compared to apoE2/3-Aβ complexes.

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Crossref · 10.1016/j.jns.2010.08.030

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  • Type 2 cerebral amyloid angiopathy affects arterioles and small arteries, but not capillaries, and is 2-times more likely to be associated with APOE2.

    “Type 2 CAA affects arterioles and small arteries, but not capillaries and is 2-times more likely to associated with APOE2 [47, 48].”

    From The neuropathological diagnosis of Alzheimer's disease (2019) · cites this paper as [48]

  • Type 1 cerebral amyloid angiopathy affects capillaries, arterioles and small arteries and is 4-times more likely to be associated with APOE4.

    “Type 1 CAA affects capillaries, arterioles and small arteries and it is 4-times more likely to be associated with APOE4.”

    From The neuropathological diagnosis of Alzheimer's disease (2019) · cites this paper as [48]

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Authors
Attems, J., Yamaguchi, H., Saido, T. C., & Thal, D. R.
Affiliations
  • Newcastle University (GB)
  • Gunma University (JP)
  • RIKEN (JP)
  • Universität Ulm (DE)
Corresponding author
Thal, Dietmar Rudolf
Venue
Journal of the Neurological Sciences
Publisher
Elsevier BV
Published
2010-12
Volume
299
Issue
1-2
Pages
155-162
ISSN
0022-510X (ISSN-L)
OpenAlex
W2111046068
Cited by
63
References
71
Citations by year
2025: 2 · 2024: 5 · 2023: 4 · 2022: 1 · 2021: 4 · 2020: 9 · 2019: 3 · 2018: 5 · 2017: 2 · 2016: 3 · 2015: 2 · 2014: 9 · 2013: 4 · 2012: 5
FWCI
3.03
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the Neurological Sciences (publishedVersion)
  • PubMed (publishedVersion)
Funders
NIHR Newcastle Biomedical Research Centre
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Intracerebral and Subarachnoid Hemorrhage Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease pathology, amyloid-beta, apolipoprotein E, APOE ε4, glia limitans, astroglial reaction, amyloid-beta 42, Aβ40
MeSH terms
Aged, Aged, 80 and over, Alleles, Alzheimer Disease, Brain, Capillaries, Female, Genotype, Humans, Immunohistochemistry, Male, Middle Aged, Amyloid beta-Peptides, Cerebral Amyloid Angiopathy, Statistics, Nonparametric, Apolipoprotein E4

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