Cited by 421Alzheimer's disease research and treatmentsHeat shock proteins researchDNA Repair Mechanisms

Nuclear Tau, a Key Player in Neuronal DNA Protection

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Sultan, Audrey, Nesslany, Fabrice, Violet, Marie, Bégard, Séverine, Loyens, Anne, Talahari, Smail, Mansuroglu, Zeyni, Marzin, Daniel +6 more·2011·Journal of Biological Chemistry

Abstract

Tau, a neuronal protein involved in neurodegenerative disorders such as Alzheimer disease, which is primarily described as a microtubule-associated protein, has also been observed in the nuclei of neuronal and non-neuronal cells. However, the function of the nuclear form of Tau in neurons has not yet been elucidated. In this work, we demonstrate that acute oxidative stress and mild heat stress (HS) induce the accumulation of dephosphorylated Tau in neuronal nuclei. Using chromatin immunoprecipitation assays, we demonstrate that the capacity of endogenous Tau to interact with neuronal DNA increased following HS. Comet assays performed on both wild-type and Tau-deficient neuronal cultures showed that Tau fully protected neuronal genomic DNA against HS-induced damage. Interestingly, HS-induced DNA damage observed in Tau-deficient cells was completely rescued after the overexpression of human Tau targeted to the nucleus. These results highlight a novel role for nuclear Tau as a key player in early stress response.

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  1. Weingarten, M. D., Lockwood, A. H., Hwo, S. Y., and Kirschner, M. W. (1975) Proc. Natl. Acad. Sci. U.S.A. 72, 1858 -1862
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Authors
Sultan, A., Nesslany, F., Violet, M., Bégard, S., Loyens, A., Talahari, S., Mansuroglu, Z., Marzin, D., Sergeant, N., Humez, S., Colin, M., Bonnefoy, E., Buée, L., & Galas, M.-C.
Affiliations
  • Inserm (FR)
  • Institut Pasteur de Lille (FR)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Galas, Marie-Christine
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2011-02
Volume
286
Issue
6
Pages
4566-4575
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2155048015
Cited by
421
References
54
Citations by year
2026: 24 · 2025: 16 · 2024: 21 · 2023: 31 · 2022: 29 · 2021: 44 · 2020: 39 · 2019: 24 · 2018: 48 · 2017: 27 · 2016: 23 · 2015: 25 · 2014: 26 · 2013: 18 · 2012: 16
FWCI
9.41
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • European Commission (200611)
  • Agence Nationale de la Recherche
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
heat stress, oxidative stress, DNA damage, neurodegeneration, Alzheimer's disease, microtubule-associated proteins, stress response
MeSH terms
Alzheimer Disease, Animals, Cell Nucleus, Cells, Cultured, DNA, Humans, Neurons, Phosphorylation, tau Proteins, Mice, Knockout, Heat-Shock Response, Mice

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