Cited by 107Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Pyroglutamate Abeta pathology in APP/PS1KI mice, sporadic and familial Alzheimer’s disease cases

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Wirths, Oliver, Bethge, Tobias, Marcello, Andrea, Harmeier, Anja, Jawhar, Sadim, Lucassen, Paul J., Multhaup, Gerd, Brody, David L. +5 more·2010·Journal of Neural Transmission

Abstract

The presence of Abeta(pE3) (N-terminal truncated Abeta starting with pyroglutamate) in Alzheimer's disease (AD) has received considerable attention since the discovery that this peptide represents a dominant fraction of Abeta peptides in senile plaques of AD brains. This was later confirmed by other reports investigating AD and Down's syndrome postmortem brain tissue. Importantly, Abeta(pE3) has a higher aggregation propensity, and stability, and shows an increased toxicity compared to full-length Abeta. We have recently shown that intraneuronal accumulation of Abeta(pE3) peptides induces a severe neuron loss and an associated neurological phenotype in the TBA2 mouse model for AD. Given the increasing interest in Abeta(pE3), we have generated two novel monoclonal antibodies which were characterized as highly specific for Abeta(pE3) peptides and herein used to analyze plaque deposition in APP/PS1KI mice, an AD model with severe neuron loss and learning deficits. This was compared with the plaque pattern present in brain tissue from sporadic and familial AD cases. Abundant plaques positive for Abeta(pE3) were present in patients with sporadic AD and familial AD including those carrying mutations in APP (arctic and Swedish) and PS1. Interestingly, in APP/PS1KI mice we observed a continuous increase in Abeta(pE3) plaque load with increasing age, while the density for Abeta(1-x ) plaques declined with aging. We therefore assume that, in particular, the peptides starting with position 1 of Abeta are N-truncated as disease progresses, and that, Abeta(pE3) positive plaques are resistant to age-dependent degradation likely due to their high stability and propensity to aggregate.

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  • N-terminal Aβ1-x/βCTF-specific antibodies fail to label N-truncated Aβ42 peptides that appear to be particularly important in AD.

    “N-terminal Aβ1-x/βCTF-specific antibodies also fail to label N-truncated Aβ42 peptides that appear to be particularly important in AD [60, 98, 157, 158, 206].”

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Authors
Wirths, O., Bethge, T., Marcello, A., Harmeier, A., Jawhar, S., Lucassen, P. J., Multhaup, G., Brody, D. L., Esparza, T., Ingelsson, M., Kalimo, H., Lannfelt, L., & Bayer, T. A.
Affiliations
  • University of Göttingen (DE)
  • Freie Universität Berlin (DE)
  • University of Amsterdam (NL)
  • Washington University in St. Louis (US)
  • Uppsala University (SE)
Corresponding author
Bayer, Thomas A.
Venue
Journal of Neural Transmission
Published
2009-10-13
Volume
117
Issue
1
Pages
85-96
ISSN
  • 0300-9564 (ISSN-L)
  • 1435-1463
OpenAlex
W2097338951
Cited by
106
References
65
Citations by year
2024: 1 · 2023: 3 · 2022: 4 · 2021: 3 · 2020: 3 · 2019: 6 · 2018: 4 · 2017: 6 · 2016: 7 · 2015: 13 · 2014: 7 · 2013: 10 · 2012: 14
FWCI
8.61
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Journal of Neural Transmission (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion, other-oa)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
European Commission (MEST-CT-2005-020013)
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
pyroglutamate amyloid-beta, Alzheimer's disease, amyloid plaques, amyloid-beta aggregation, amyloid beta degradation, APP mutations, PS1 mutations, monoclonal antibodies, neuronal loss, aging, familial Alzheimer's disease, sporadic Alzheimer's disease
MeSH terms
Aged, Aged, 80 and over, Aging, Alzheimer Disease, Animals, Brain, Disease Models, Animal, Female, Humans, Male, Mice, Transgenic, Middle Aged, Mutation, Peptide Fragments, Pyrrolidonecarboxylic Acid, Receptors, Cell Surface, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, Mice, Presenilin-1, Plaque, Amyloid, Protease Nexins

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