Cited by 311Epilepsy research and treatmentAlzheimer's disease research and treatmentsNeuroscience and Neuropharmacology Research

Antisense Reduction of Tau in Adult Mice Protects against Seizures

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DeVos, S. L., Goncharoff, D. K., Chen, G., Kebodeaux, C. S., Yamada, K., Stewart, F. R., Schuler, D. R., Maloney, S. E. +6 more·2013·Journal of Neuroscience

Abstract

Tau, a microtubule-associated protein, is implicated in the pathogenesis of Alzheimer's Disease (AD) in regard to both neurofibrillary tangle formation and neuronal network hyperexcitability. The genetic ablation of tau substantially reduces hyperexcitability in AD mouse lines, induced seizure models, and genetic in vivo models of epilepsy. These data demonstrate that tau is an important regulator of network excitability. However, developmental compensation in the genetic tau knock-out line may account for the protective effect against seizures. To test the efficacy of a tau reducing therapy for disorders with a detrimental hyperexcitability profile in adult animals, we identified antisense oligonucleotides that selectively decrease endogenous tau expression throughout the entire mouse CNS--brain and spinal cord tissue, interstitial fluid, and CSF--while having no effect on baseline motor or cognitive behavior. In two chemically induced seizure models, mice with reduced tau protein had less severe seizures than control mice. Total tau protein levels and seizure severity were highly correlated, such that those mice with the most severe seizures also had the highest levels of tau. Our results demonstrate that endogenous tau is integral for regulating neuronal hyperexcitability in adult animals and suggest that an antisense oligonucleotide reduction of tau could benefit those with epilepsy and perhaps other disorders associated with tau-mediated neuronal hyperexcitability.

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Crossref · 10.1523/jneurosci.2107-13.2013

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  • ASO-mediated tau reduction has shown promising results in the treatment of Alzheimer's disease after local injection of Tau-ASO using an intracerebroventricular pump.

    “because ASO-mediated tau reduction has shown promising results in the treatment of Alzheimer’s disease after the local injection of the Tau-ASO using an intracerebroventricular (ICV) pump (31, 32).”

    From Neurotransmitter-derived lipidoids (NT-lipidoids) for enhanced brain delivery through intravenous injection (2020) · cites this paper as [31]

    The Results section reports that Tau-ASO delivered by intracerebroventricular pumps reduced tau in adult mice. The Discussion describes treatment of Alzheimer’s disease as a possible future application, not a demonstrated result: this paper studied seizure protection, not treatment efficacy in Alzheimer’s disease. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • In a previous study, ~80% reduction of tau mRNA and ~70% reduction of tau protein were achieved by continuously dosing 28 days with 25-μg Tau-ASO per day through local injection by ICV pump.

    “Notably, in the previous study, ~80% reduction of tau mRNA and ~70% reduction of tau protein were achieved by continuously dosing 28 days, and the dose was 25-μg Tau-ASO per day through local injection by ICV pump (31).”

    From Neurotransmitter-derived lipidoids (NT-lipidoids) for enhanced brain delivery through intravenous injection (2020) · cites this paper as [31]

    The Methods describe 28-day ICV osmotic pumps, and the Results section on endogenous tau expression reports that 25 μg/day Tau ASO-3 reduced tau mRNA by more than 75%, with a reduction exceeding 80% still present four weeks after infusion stopped. The Results also report reduced tau protein after this treatment, but our copy does not give the claimed approximately 70% protein reduction. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Across various animal models that exhibit epilepsy, reducing tau levels reduces network hyperexcitability, seizure severity, and latency to seizure stages.

    “Across various animal models that exhibit epilepsy, reducing tau levels reduces network hyperexcitability, seizure severity, and latency to seizure stages (Roberson et al., 2007; Ittner et al., 2010; DeVos et al., 2013; Holth et al., 2013; Wang and Mandelkow, 2016; Ali et al., 2019).”

    From Tauopathy and Epilepsy Comorbidities and Underlying Mechanisms (2022) · cites this paper as DeVos et al., 2013

    The Abstract reports that tau reduction made seizures less severe in two chemically induced mouse models, and the Introduction discusses reduced hyperexcitability across other mouse models. But the Results section on intrinsic tau variability reports that mice with lower tau took longer—not less time—to reach a stage 8 seizure. The claim reverses the direction of seizure latency. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Endogenous levels of tau positively correlate with chemically induced seizure susceptibility in wild-type mice.

    “Endogenous levels of tau also positively correlate with chemically induced seizure susceptibility in wild-type mice (DeVos et al., 2013), suggesting a role of endogenous tau in mediating epileptic activity.”

    From Tauopathy and Epilepsy Comorbidities and Underlying Mechanisms (2022) · cites this paper as DeVos et al., 2013

  • Endogenous tau likely contributes to network hyperexcitability across primary and secondary epilepsies.

    “Given tau’s role in modulating neuronal activity under normal physiological conditions (DeVos et al., 2013; Chang et al., 2021), endogenous tau likely contributes to network hyperexcitability across primary and secondary epilepsies.”

    From Tauopathy and Epilepsy Comorbidities and Underlying Mechanisms (2022) · cites this paper as DeVos et al., 2013

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Authors
DeVos, S. L., Goncharoff, D. K., Chen, G., Kebodeaux, C. S., Yamada, K., Stewart, F. R., Schuler, D. R., Maloney, S. E., Wozniak, D. F., Rigo, F., Bennett, C. F., Cirrito, J. R., Holtzman, D. M., & Miller, T. M.
Affiliations
  • Washington University in St. Louis (US)
  • Hope Center for Neurological Disorders (US)
  • Ionis Pharmaceuticals (United States) (US)
Venue
Journal of Neuroscience
Published
2013-07-31
Volume
33
Issue
31
Pages
12887-12897
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2030317956
Cited by
311
References
86
Citations by year
2026: 13 · 2025: 19 · 2024: 22 · 2023: 27 · 2022: 24 · 2021: 36 · 2020: 34 · 2019: 29 · 2018: 25 · 2017: 22 · 2016: 16 · 2015: 24 · 2014: 19 · 2013: 1
FWCI
14.17
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons@Becker (Washington University School of Medicine) (submittedVersion)
Funders
  • Hope Center for Neurological Disorders (P30 NS057105)
  • National Institutes of Health
  • National Institute on Aging (R21AG044719, R01AG042513, P50AG005681)
  • National Institute of Neurological Disorders and Stroke (P30NS057105, NS057105, K08NS074194, R01NS078398)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Epilepsy research and treatment
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
tau protein, antisense oligonucleotides, neuronal hyperexcitability, seizure susceptibility, epilepsy, Alzheimer's disease, neurofibrillary tangles, network excitability, chemically induced seizures
MeSH terms
Age Factors, Animals, Anticonvulsants, Central Nervous System, Convulsants, Disease Models, Animal, Gene Expression Regulation, Locomotion, Mice, Inbred C57BL, Pentylenetetrazole, Picrotoxin, Seizures, Oligonucleotides, Antisense, tau Proteins, Microdialysis, Mice, Knockout, Maze Learning, Lactic Acid, Gait Disorders, Neurologic, Mice, Infusions, Intraventricular

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