Cited by 87Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Reduction of aggregated Tau in neuronal processes but not in the cell bodies after Aβ42 immunisation in Alzheimer’s disease

Boche, Delphine, Donald, Jane, Love, Seth, Harris, Scott, Neal, James W., Holmes, Clive, Nicoll, James A. R.·2010·Acta Neuropathologica

Abstract

Alzheimer's disease (AD) pathology is characterised by aggregation in the brain of amyloid-beta (Abeta) peptide and hyperphosphorylated tau (phospho-tau), although how these proteins interact in disease pathogenesis is unclear. Abeta immunisation results in removal of Abeta from the brain but cognitive decline continues to progress, possibly due to persistent phospho-tau. We quantified phospho-tau and Abeta42 in the brains of 10 AD patients (iAD) who were actively immunised with Abeta42 (AN1792, Elan Pharmaceuticals) compared with 28 unimmunised AD cases (cAD). The phospho-tau load was lower in the iAD than the cAD group in the cerebral cortex (cAD 1.08% vs. iAD 0.72%, P = 0.048), CA1 hippocampus (cAD 2.26% vs. iAD 1.05%; P = 0.001), subiculum (cAD 1.60% vs. iAD 0.31%; P = 0.001) and entorhinal cortex (cAD 1.10% vs. iAD 0.18%; P < 0.001). Assessment of the localisation within neurons of phospho-tau indicated that the Abeta immunotherapy-associated reduction was confined to neuronal processes, i.e. neuropil threads and dystrophic neurites. However, the phospho-tau accumulation in the neuronal cell bodies, contributing to neurofibrillary tangles, appeared not to be affected. In showing that Abeta immunisation can influence phospho-tau pathology, we confirm the position of Abeta as a target for modifying tau accumulation in AD and demonstrate a link between these proteins. However, the continuing progression of cognitive decline in AD patients after Abeta immunisation may be explained by its lack of apparent effect on tangles.

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Crossref · 10.1007/s00401-010-0705-y

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  • In the first active immunization trial, the AN-1792 vaccine seemed to show some ability to clear Aβ plaque-associated tau lesions through plaque removal.

    “In the first active immunization trial, the AN-1792 vaccine seemed to show some ability to clear Aβ plaque-associated tau lesions through plaque removal179–181”

    From Tau-targeting therapies for Alzheimer disease (2018) · cites this paper as [181]

  • There have been hints of some beneficial effects (clinical and biochemical) linked to human anti-Aβ immunotherapies.

    “In fact, there have been hints of some beneficial effects (clinical and biochemical) linked to human anti-Aβ immunotherapies (74-79).”

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Authors
Boche, D., Donald, J., Love, S., Harris, S., Neal, J. W., Holmes, C., & Nicoll, J. A. R.
Affiliations
  • Southampton General Hospital (GB)
  • University of Bristol (GB)
  • University of Southampton (GB)
  • University of Wales (GB)
Corresponding author
Boche, Delphine
Venue
Acta Neuropathologica
Published
2010-06-09
Volume
120
Issue
1
Pages
13-20
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2092921112
Cited by
85
References
28
Citations by year
2026: 1 · 2024: 5 · 2023: 1 · 2022: 3 · 2021: 6 · 2020: 5 · 2019: 6 · 2018: 6 · 2017: 6 · 2016: 4 · 2015: 7 · 2014: 12 · 2013: 9 · 2012: 3
FWCI
4.95
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
  • Explore Bristol Research (publishedVersion)
  • ePrints Soton (University of Southampton) (acceptedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
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, amyloid-beta 42, hyperphosphorylated tau, tau aggregation, neurofibrillary tangles, neural processes, dystrophic neurites, neuropil threads, hippocampus, entorhinal cortex, subiculum, cognitive decline, immunotherapy
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Female, Follow-Up Studies, Humans, Immunization, Immunohistochemistry, Male, Middle Aged, Neurons, Peptide Fragments, Phosphorylation, Amyloid beta-Peptides, Neurites, Neurofibrillary Tangles, tau Proteins, Treatment Outcome, Entorhinal Cortex, Neocortex, CA1 Region, Hippocampal

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