Cited by 69Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Analysis of microdissected human neurons by a sensitive ELISA reveals a correlation between elevated intracellular concentrations of Aβ42 and Alzheimer’s disease neuropathology

Hashimoto, Masakazu, Bogdanovic, Nenad, Volkmann, Inga, Aoki, Mikio, Winblad, Bengt, Tjernberg, Lars O.·2010·Acta Neuropathologica

Abstract

In Alzheimer's disease (AD), Purkinje neurons in the cerebellum are spared, while, for instance, pyramidal neurons in the hippocampus are neuropathologically affected. Several lines of evidence suggest that the pathogenesis could be induced by the concentration-dependent polymerization of the amyloid beta-peptide (Abeta) into extracellular oligomers. The role of intracellular Abeta is not fully investigated, but recent data indicate that also this pool could be of importance. Here, we use laser capture microdissection microscopy for isolation of Purkinje neurons from AD cases and controls, and quantify the low levels of intracellular Abeta using a novel and highly sensitive ELISA. Similar to Cornu Ammonis 1 pyramidal neurons, the intracellular levels of the most toxic variant, Abeta42, as well as the Abeta42/Abeta40 ratio, were increased in Purkinje neurons from sporadic AD cases as compared to controls. However, the levels of Abeta42 as well as Abeta40 were clearly lower in Purkinje neurons than in pyramidal neurons. Based on the volume of the captured Purkinje neurons, the intraneuronal concentrations of Abeta42 were calculated to be 200 nM in sporadic AD cases and 90 nM in controls. The corresponding concentrations in pyramidal neurons from hippocampus were 3 muM and 660 nM, respectively. The Abeta40 concentration was not significantly altered in AD cases compared to controls. However, we found ten times higher concentration of Abeta40 in pyramidal neurons (10 muM) compared to Purkinje neurons (1 muM). Finally, we suggest that high concentration of intracellular Abeta42 correlates with vulnerability to AD neuropathology.

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Crossref · 10.1007/s00401-010-0661-6

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Authors
Hashimoto, M., Bogdanovic, N., Volkmann, I., Aoki, M., Winblad, B., & Tjernberg, L. O.
Affiliations
Karolinska Institutet (SE)
Corresponding author
Hashimoto, Masakazu
Venue
Acta Neuropathologica
Published
2010-03-03
Volume
119
Issue
5
Pages
543-554
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2034625784
Cited by
69
References
46
Citations by year
2026: 2 · 2025: 3 · 2024: 4 · 2023: 2 · 2021: 7 · 2020: 2 · 2019: 2 · 2018: 5 · 2017: 4 · 2016: 5 · 2015: 5 · 2014: 6 · 2013: 5 · 2012: 11
FWCI
4.55
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
Funders
Dainippon Sumitomo Pharma
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, intracellular amyloid-beta, amyloid-beta 42, Aβ40, Purkinje cells, cerebellum, hippocampal pyramidal neurons, laser capture microdissection, ELISA quantification, neuronal vulnerability, sporadic Alzheimer's disease
MeSH terms
Alzheimer Disease, Cerebellum, Cytoplasm, Enzyme-Linked Immunosorbent Assay, Hippocampus, Humans, Immunohistochemistry, Peptide Fragments, Purkinje Cells, Amyloid beta-Peptides, Pyramidal Cells, Microdissection

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