ArticleMolecular neurodegeneration2023
Amyloid-β (Aβ) immunotherapy induced microhemorrhages are associated with activated perivascular macrophages and peripheral monocyte recruitment in Alzheimer's disease mice.
Article in Molecular neurodegeneration, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
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Who cites it
63 citing papers in PubMed, 80 citations in OpenAlex.
- Microglial states revisited: from homeostasis to disease.Nature reviews. Neuroscience · 2026Review
- Border-Associated Macrophage Migrasomes in Alzheimer's Disease: An Emerging Aβ-Senescence-Microglia Axis?Cells · 2026Review
- Central nervous system lymphatic network: from the maintenance of brain homeostasis to emerging therapeutic perspectives in neurodegenerative diseases.Translational neurodegeneration · 2026Review
- Article
- Immunotherapy with B28, an antibody to Aβ oligomers, potently decreases amyloid plaques, microgliosis, and memory decline in APP knock-in mice.Cell reports · 2026Article
- Passive amyloid-β immunotherapy in Alzheimer's disease: a multicellular clearance system beyond plaque removal.Molecular neurodegeneration · 2026Review
- Recent advances in Alzheimer's disease: From molecular mechanisms to therapeutic strategies.Cell · 2026Review
- Anti-amyloid immunotherapy drives APOE4 specific increases in glial reactivity, perivascular immune activation, and ARIA-like events.bioRxiv : the preprint server for biology · 2026Article
- Early binding of anti-amyloid antibodies to CAA drives complement activation, inflammation and ARIA in mice.Molecular neurodegeneration · 2026Article
- Review
- Biomarker Based ARIA Stress Test: A Proposed Conceptual Framework for Dynamic Biomarker-Guided ARIA Risk Stratification in Anti-Amyloid Immunotherapy for Alzheimer's Disease.Journal of molecular neuroscience : MN · 2026Review
- Review
- Tracking of Neuroinflammation Dynamics During Combined Anti-β-Amyloid Therapy (AAT) and Immunomodulation in a Preclinical Alzheimer's Disease Model.International journal of molecular sciences · 2026Article
- TNF inhibition differentially impacts regional Abeta immunotherapy efficacy in the humanized hAbAlzheimer's research & therapy · 2026Article
- Amyloid-related imaging abnormalities (ARIA) in anti-amyloid therapies for Alzheimer's disease: An update from the Alzheimer's Association ARIA workgroup.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Review
- Early Binding of Anti-Amyloid Antibodies to CAA Drives Complement Activation, Inflammation and ARIA in Mice.bioRxiv : the preprint server for biology · 2026Article
- The spleen-brain axis in Alzheimer's disease and related dementias: Integrating immune and metabolic regulation.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Review
- Blood-brain barrier dysfunction and peripheral immune activation in Alzheimer's disease: an inflammation-centered review.Frontiers in immunology · 2026Review
- Anti-amyloid treatment in Alzheimer disease: updated implications for patients with cerebral amyloid angiopathy and other cerebrovascular conditions.Frontiers in neurology · 2026Review
- Structural and Functional Determinants of ARIA-H Risk in Anti-Amyloid Monoclonal Antibodies: A Comparative Mechanistic Framework for Alzheimer's Immunotherapy Development.Current neuropharmacology · 2026Article
3 more citing papers are in PubMed but not listed here.
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
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Abstract
backgroundAmyloid-related imaging abnormalities (ARIA) have been identified as the most common and serious adverse events resulting from pathological changes in the cerebral vasculature during several recent anti-amyloid-β (Aβ) immunotherapy trials. However, the precise cellular and molecular mechanisms underlying how amyloid immunotherapy enhances cerebral amyloid angiopathy (CAA)-mediated alterations in vascular permeability and microhemorrhages are not currently understood. Interestingly, brain perivascular macrophages have been implicated in regulating CAA deposition and cerebrovascular function however, further investigations are required to understand how perivascular macrophages play a role in enhancing CAA-related vascular permeability and microhemorrhages associated with amyloid immunotherapy.
methodsIn this study, we examined immune responses induced by amyloid-targeting antibodies and CAA-induced microhemorrhages using histology and gene expression analyses in Alzheimer's disease (AD) mouse models and primary culture systems.
resultsIn the present study, we demonstrate that anti-Aβ (3D6) immunotherapy leads to the formation of an antibody immune complex with vascular amyloid deposits and induces the activation of CD169
conclusionsIn summary, our study establishes a connection between Aβ antibodies engaged at CAA deposits, the activation of perivascular macrophages, and the upregulation of genes involved in vascular permeability. However, the implications of this phenomenon on the susceptibility to microhemorrhages remain to be fully elucidated. Further investigations are warranted to determine the precise role of CD169 + perivascular macrophages in enhancing CAA-mediated vascular permeability, extravasation of plasma proteins, and infiltration of immune cells associated with microhemorrhages.
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