Cited by 57Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsMonoclonal and Polyclonal Antibodies Research

AAV-mediated expression of anti-tau scFvs decreases tau accumulation in a mouse model of tauopathy

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Ising, Christina, Gallardo, Gilbert, Leyns, Cheryl E.G., Wong, Connie H., Jiang, Hong, Stewart, Floy, Koscal, Lauren J., Roh, Joseph +3 more·2017·Journal of Experimental Medicine

Abstract

Tauopathies are characterized by the progressive accumulation of hyperphosphorylated, aggregated forms of tau. Our laboratory has previously demonstrated that passive immunization with an anti-tau antibody, HJ8.5, decreased accumulation of pathological tau in a human P301S tau-expressing transgenic (P301S-tg) mouse model of frontotemporal dementia/tauopathy. To investigate whether the Fc domain of HJ8.5 is required for the therapeutic effect, we engineered single-chain variable fragments (scFvs) derived from HJ8.5 with variable linker lengths, all specific to human tau. Based on different binding properties, we selected two anti-tau scFvs and tested their efficacy in vivo by adeno-associated virus–mediated gene transfer to the brain of P301S-tg mice. The scFvs significantly reduced levels of hyperphosphorylated, aggregated tau in brain tissue of P301S-tg mice, associated with a decrease in detergent-soluble tau species. Interestingly, these mice showed substantial levels of scFvs in the cerebrospinal fluid without significant effects on total extracellular tau levels. Therefore, our study provides a novel strategy for anti-tau immunotherapeutics that potentially limits a detrimental proinflammatory response.

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  • Antibody fragments have been shown to reduce tau levels in vivo.

    “Moreover, antibody fragments have been shown to reduce tau levels in vivo225,226.”

    From Tau-targeting therapies for Alzheimer disease (2018) · cites this paper as [226]

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Authors
Ising, C., Gallardo, G., Leyns, C. E. G., Wong, C. H., Jiang, H., Stewart, F., Koscal, L. J., Roh, J., Robinson, G. O., Remolina Serrano, J., & Holtzman, D. M.
Affiliations
  • Washington University in St. Louis (US)
  • Department of Neurology, Hope Center for Neurological Disorders, Charles F. and Joanne Knight Alzheimer's Disease Research Center, Washington University, St. Louis, MO 63110
Corresponding author
Holtzman, David M.
Venue
Journal of Experimental Medicine
Published
2017-04-17
Volume
214
Issue
5
Pages
1227-1238
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2607091076
Cited by
57
References
39
Citations by year
2026: 2 · 2025: 5 · 2024: 3 · 2023: 4 · 2022: 5 · 2021: 5 · 2020: 7 · 2019: 8 · 2018: 16 · 2017: 2
FWCI
6.67
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Digital Commons@Becker (Washington University School of Medicine) (submittedVersion, cc-by-nc-sa)
Funders
  • Deutsche Forschungsgemeinschaft (IS 299/1-1)
  • National Institutes of Health (K01 NS096719-01)
  • McDonnell Center for Cellular and Molecular Neurobiology
  • NIH (AG04867801, S10 RR027552)
  • Tau Consortium
  • JPB Foundation
  • C2N Diagnostics
  • The Hope Center
  • Washington University
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
Keywords
tauopathy, scFv, AAV gene delivery, P301S tau transgenic mice, frontotemporal dementia, hyperphosphorylated tau, tau aggregation, passive immunization, cerebrospinal fluid, Fc domain
MeSH terms
Dependovirus, Animals, Brain, Disease Models, Animal, Female, Hippocampus, Male, Mice, Transgenic, tau Proteins, Gene Transfer Techniques, Tauopathies, Mice, Single-Chain Antibodies

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