Cited by 146Alzheimer's disease research and treatmentsGenomics and Chromatin DynamicsNuclear Structure and Function

Loss of Tau protein affects the structure, transcription and repair of neuronal pericentromeric heterochromatin

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Mansuroglu, Zeyni, Benhelli-Mokrani, Houda, Marcato, Vasco, Sultan, Audrey, Violet, Marie, Chauderlier, Alban, Delattre, Lucie, Loyens, Anne +9 more·2016·Scientific Reports

Abstract

Pericentromeric heterochromatin (PCH) gives rise to highly dense chromatin sub-structures rich in the epigenetic mark corresponding to the trimethylated form of lysine 9 of histone H3 (H3K9me3) and in heterochromatin protein 1α (HP1α), which regulate genome expression and stability. We demonstrate that Tau, a protein involved in a number of neurodegenerative diseases including Alzheimer’s disease (AD), binds to and localizes within or next to neuronal PCH in primary neuronal cultures from wild-type mice. Concomitantly, we show that the clustered distribution of H3K9me3 and HP1α, two hallmarks of PCH, is disrupted in neurons from Tau-deficient mice (KOTau). Such altered distribution of H3K9me3 that could be rescued by overexpressing nuclear Tau protein was also observed in neurons from AD brains. Moreover, the expression of PCH non-coding RNAs, involved in PCH organization, was disrupted in KOTau neurons that displayed an abnormal accumulation of stress-induced PCH DNA breaks. Altogether, our results demonstrate a new physiological function of Tau in directly regulating neuronal PCH integrity that appears disrupted in AD neurons.

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  • Tau deletion in the mouse brain leads to the accumulation of DSB foci in neurons.

    “Tau may also play a role in DSB repair as well, as its deletion in the mouse brain leads to the accumulation of DSB foci in neurons (Violet et al, 2014; Mansuroglu et al, 2016).”

    From Mechanisms of DNA damage-mediated neurotoxicity in neurodegenerative disease (2022) · cites this paper as Mansuroglu et al, 2016

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Authors
Mansuroglu, Z., Benhelli-Mokrani, H., Marcato, V., Sultan, A., Violet, M., Chauderlier, A., Delattre, L., Loyens, A., Talahari, S., Bégard, S., Nesslany, F., Colin, M., Souès, S., Lefebvre, B., Buée, L., Galas, M.-C., & Bonnefoy, E.
Affiliations
  • Inserm (FR)
  • Institut Pasteur de Lille (FR)
Corresponding author
  • Galas, Marie-Christine
  • Bonnefoy, Eliette
Venue
Scientific Reports
Published
2016-09-08
Volume
6
Issue
1
Pages
33047-33047
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2514975062
Cited by
146
References
54
Citations by year
2026: 11 · 2025: 18 · 2024: 11 · 2023: 22 · 2022: 16 · 2021: 20 · 2020: 12 · 2019: 9 · 2018: 16 · 2017: 10 · 2016: 1
FWCI
9.65
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
Funders
  • EU Joint Programme – Neurodegenerative Disease Research
  • Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease
  • 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 › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
tau protein, pericentromeric heterochromatin, H3K9me3, HP1α, Alzheimer's disease, non-coding RNA, DNA repair, DNA strand breaks, chromatin organization, neurodegeneration
MeSH terms
Chromobox Protein Homolog 5, Animals, Brain, Centromere, Chromosomal Proteins, Non-Histone, DNA Repair, Heterochromatin, Histones, Humans, Lysine, Neurons, Transcription, Genetic, tau Proteins, Mice, Knockout, Epigenesis, Genetic, Mice, DNA Breaks

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