Cited by 115Alzheimer's disease research and treatmentsAmyotrophic Lateral Sclerosis ResearchParkinson's Disease Mechanisms and Treatments

Progressive neurodegeneration in C. elegans model of tauopathy

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Miyasaka, Tomohiro, Ding, Zhen, Gengyo-Ando, Keiko, Oue, Miho, Yamaguchi, Haruyasu, Mitani, Shohei, Ihara, Yasuo·2005·Neurobiology of Disease

Abstract

Discovery of various mutations in the tau gene among frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17) families suggests gain-of-toxic function of wild-type or mutant tau as the mechanism for extensive neuronal loss. We thus generated transgenic nematode (Caenorhabditis elegans) expressing wild-type or mutant (P301L and R406W) tau in the touch (mechanosensory) neurons. Whereas the worm expressing wild-type tau showed a small decrease in the touch response across the lifespan, the worm expressing mutant tau displayed a large and progressive decrease. When the touch neurons lost their function, neuritic abnormalities were found prominent, and microtubular loss became remarkable in the later stage. A substantial fraction of degenerating neurons developed tau accumulation in the cell body and neuronal processes. This neuronal dysfunction is not related to the apoptotic process because little recovery from touch abnormality was observed in the ced-3 or ced-4-deficient background. Expression of GSK3 brought about slight deterioration in the touch response, while expression of HSP70 led to some improvement.

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Crossref · 10.1016/j.nbd.2005.03.017

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Authors
Miyasaka, T., Ding, Z., Gengyo-Ando, K., Oue, M., Yamaguchi, H., Mitani, S., & Ihara, Y.
Affiliations
  • The University of Tokyo (JP)
  • Tokyo Women's Medical University (JP)
  • Gunma University (JP)
Corresponding author
Ihara, Yasuo
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2005-11
Volume
20
Issue
2
Pages
372-383
ISSN
0969-9961 (ISSN-L)
OpenAlex
W2050553218
Cited by
115
References
61
Citations by year
2026: 3 · 2025: 2 · 2024: 4 · 2023: 2 · 2022: 8 · 2021: 2 · 2020: 16 · 2019: 5 · 2018: 6 · 2017: 5 · 2016: 3 · 2015: 3 · 2014: 8 · 2013: 11 · 2012: 5
FWCI
2.40
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Disease (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology
  • National Center for Research Resources
  • Japan Society for the Promotion of Science
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
tauopathy, tau protein, FTDP-17, Caenorhabditis elegans, touch neurons, mechanosensory neurons, P301L tau, gain of toxic function, neurodegeneration, glycogen synthase kinase-3, HSP70, apoptosis, CED-3, CED-4, transgenic nematodes
MeSH terms
Glycogen Synthase Kinase 3 beta, Animals, Disease Models, Animal, Immunohistochemistry, Mechanoreceptors, Microtubules, Mutation, Nerve Degeneration, Nervous System, Neurons, Touch, Neurites, tau Proteins, Caenorhabditis elegans, Oxidative Stress, HSP70 Heat-Shock Proteins, Somatosensory Disorders, Tauopathies, Animals, Genetically Modified, Glycogen Synthase Kinase 3, Microscopy, Electron, Transmission

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