Cited by 442Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

A Plaque-Specific Antibody Clears Existing β-amyloid Plaques in Alzheimer's Disease Mice

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DeMattos, Ronald B., Lu, Jirong, Tang, Ying, Racke, Margaret M., DeLong, Cindy A., Tzaferis, John A., Hole, Justin T., Forster, Beth M. +5 more·2012·Neuron

Abstract

Aβ Immunotherapy is a promising therapeutic approach for Alzheimer's disease. Preclinical studies demonstrate that plaque prevention is possible; however, the more relevant therapeutic removal of existing plaque has proven elusive. Monoclonal antibodies in development target both soluble and insoluble Aβ peptide. We hypothesized that antibody specificity for deposited plaque was critical for plaque removal since soluble Aβ peptide would block recognition of deposited forms. We developed a plaque-specific antibody that targets a modified Aβ peptide (Aβ(p3-42)), which showed robust clearance of pre-existing plaque without causing microhemorrhage. Interestingly, a comparator N-terminal Aβ antibody 3D6, which binds both soluble and insoluble Aβ(1-42), lacked efficacy for lowering existing plaque but manifested a significant microhemorrhage liability. Mechanistic studies suggested that the lack of efficacy for 3D6 was attributed to poor target engagement in plaques. These studies have profound implications for the development of therapeutic Aβ antibodies for Alzheimer's disease.

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Crossref · 10.1016/j.neuron.2012.10.029

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Authors
DeMattos, R. B., Lu, J., Tang, Y., Racke, M. M., DeLong, C. A., Tzaferis, J. A., Hole, J. T., Forster, B. M., McDonnell, P. C., Liu, F., Kinley, R. D., Jordan, W. H., & Hutton, M. L.
Affiliations
Eli Lilly (United States) (US)
Corresponding author
DeMattos, Ronald B.
Venue
Neuron
Publisher
Elsevier BV
Published
2012-12
Volume
76
Issue
5
Pages
908-920
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2024917017
Cited by
442
References
55
Citations by year
2026: 39 · 2025: 57 · 2024: 68 · 2023: 49 · 2022: 28 · 2021: 29 · 2020: 36 · 2019: 11 · 2018: 17 · 2017: 18 · 2016: 23 · 2015: 19 · 2014: 29 · 2013: 18 · 2012: 1
FWCI
14.36
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, amyloid plaques, monoclonal antibodies, amyloid-beta 42, antibody specificity, plaque clearance, microhemorrhages, target engagement, mouse model
MeSH terms
Age Factors, Alzheimer Disease, Animals, Disease Models, Animal, Enzyme-Linked Immunosorbent Assay, Hemorrhage, Hippocampus, Humans, Immunoglobulin G, Immunotherapy, Mice, Transgenic, Peptide Fragments, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, Mice, Plaque, Amyloid

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