Cited by 109Alzheimer's disease research and treatmentsAmyotrophic Lateral Sclerosis ResearchNeuroinflammation and Neurodegeneration Mechanisms

Rat tau proteome consists of six tau isoforms: implication for animal models of human tauopathies

Hanes, Jozef, Zilka, Norbert, Bartkova, Miriam, Caletkova, Miroslava, Dobrota, Dusan, Novak, Michal·2009·Journal of Neurochemistry

Abstract

Human brain encompasses six tau isoforms, containing either three (3R) or four (4R) repeat domains, all of which participate in the pathogenesis of human tauopathies. To investigate the role of tau protein in the disease, transgenic rat models have been created. However, unlike humans, it has been suggested that rat brain expresses only three 4R tau isoforms. Because of the significance of the number of tau isoforms for faithful reproducibility of neurofibrillary pathology in transgenic rat models, we reopened this issue. Surprisingly, our results showed that adult rat brain contains six tau isoforms like humans. Protein expression of 4R tau isoforms was ninefold higher than 3R isoforms. Furthermore, the protein levels of tau isoforms with none, one or two N‐terminal inserts were 30%, 35%, and 35% of total tau, respectively. Moreover, amount and ratio of tau isoforms were developmentally regulated. The levels of 4R tau isoforms progressively increased from early postnatal period until adulthood, whereas the expression of 3R tau isoforms reached maximum at P10 and then gradually declined. Our results show that rat brain encompasses full tau proteome similar to humans. These findings support the use of rat as an animal model in human tauopathies research.

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Crossref · 10.1111/j.1471-4159.2009.05869.x

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Authors
Hanes, J., Zilka, N., Bartkova, M., Caletkova, M., Dobrota, D., & Novak, M.
Affiliations
Slovak Academy of Sciences (SK)
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2009-02-09
Volume
108
Issue
5
Pages
1167-1176
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W2027284964
Cited by
109
References
58
Citations by year
2026: 5 · 2025: 10 · 2024: 9 · 2023: 9 · 2022: 8 · 2021: 13 · 2020: 9 · 2019: 1 · 2018: 5 · 2017: 5 · 2016: 8 · 2015: 11 · 2014: 3 · 2013: 5
FWCI
1.55
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Vedecká Grantová Agentúra MŠVVaŠ SR a SAV
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
tau protein, tau isoforms, tauopathy, transgenic rats, neurofibrillary tangles, animal models of neurodegenerative disease
MeSH terms
Age Factors, Animals, Brain, Disease Models, Animal, Humans, Rats, Inbred SHR, Electrophoresis, Gel, Two-Dimensional, tau Proteins, Gene Expression Regulation, Developmental, Protein Isoforms, Proteome, Tauopathies, Rats

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