Cited by 265Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Aβ Species Removal After Aβ 42 Immunization

Nicoll, James A. R., Barton, Edward, Boche, Delphine, Neal, Jim W., Ferrer, Isidro, Thompson, Petrina, Vlachouli, Christina, Wilkinson, David +5 more·2006·Journal of Neuropathology & Experimental Neurology

Abstract

Neuropathologic examination of 3 patients with Alzheimer disease in the Elan Pharmaceuticals trial using antibodies specific for different Abeta species showed in one case, 4 months after the immunization, evidence of a stage of active plaque clearance with "moth-eaten" plaques and abundant Abeta phagocytosis by microglia. At 1 to 2 years after immunization, 2 cases showed extensive areas cleared of plaques (69% and 86% of the temporal cortex was plaque-free). Cortex cleared of plaques in all 3 cases had a characteristic constellation of features, including a very low plaque burden, sparse residual dense plaque cores, and phagocytosed Abeta within microglia. There was resolution of tau-containing dystrophic neurites, although other features of tau pathology (tangles and neuropil threads) remained and cerebral amyloid angiopathy persisted. Although most antibodies generated by Abeta42 immunization in humans bind the intact N-terminus, immunohistochemistry with specific antibodies showed clearance of all major species of Abeta (Abeta40, Abeta42, and N-terminus truncated Abeta). Abeta immunotherapy can clear all Abeta species from the cortex. However, if it is to be used for treatment of established Alzheimer disease, then the residual tau pathology and cerebral amyloid angiopathy require further study.

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Crossref · 10.1097/01.jnen.0000240466.10758.ce

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Authors
Nicoll, J. A. R., Barton, E., Boche, D., Neal, J. W., Ferrer, I., Thompson, P., Vlachouli, C., Wilkinson, D., Bayer, A., Games, D., Seubert, P., Schenk, D., & Holmes, C.
Affiliations
  • Southampton General Hospital (GB)
  • University of Southampton (GB)
  • University Hospital of Wales (GB)
  • Bellvitge University Hospital (ES)
Corresponding author
Boche, Delphine
Venue
Journal of Neuropathology & Experimental Neurology
Published
2006-11
Volume
65
Issue
11
Pages
1040-1048
ISSN
  • 0022-3069 (ISSN-L)
  • 1554-6578
OpenAlex
W1823419340
Cited by
265
References
32
Citations by year
2026: 3 · 2025: 7 · 2024: 3 · 2023: 5 · 2022: 8 · 2021: 2 · 2020: 9 · 2019: 9 · 2018: 6 · 2017: 12 · 2016: 9 · 2015: 11 · 2014: 16 · 2013: 21 · 2012: 19
FWCI
14.80
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • ArTS Archivio della ricerca di Trieste (University of Trieste https://www.units.it/) (submittedVersion)
  • ePrints Soton (University of Southampton) (submittedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
Funders
Chinese Academy of Agricultural Sciences
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 immunotherapy, plaque clearance, microglial phagocytosis, tau pathology, cerebral amyloid angiopathy, neuropathology
MeSH terms
Alzheimer Disease, Amino Acid Sequence, Brain, Humans, Image Processing, Computer-Assisted, Immunohistochemistry, Molecular Sequence Data, Peptide Fragments, Phagocytosis, Randomized Controlled Trials as Topic, Amyloid beta-Peptides, Cerebral Amyloid Angiopathy, Neurofibrillary Tangles, Microglia, Microscopy, Confocal, Neuropil Threads, Alzheimer Vaccines

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