Cited by 105Alzheimer's disease research and treatmentsHistone Deacetylase Inhibitors ResearchDementia and Cognitive Impairment Research

An HDAC6-dependent surveillance mechanism suppresses tau-mediated neurodegeneration and cognitive decline

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Trzeciakiewicz, Hanna, Ajit, Deepa, Tseng, Jui-Heng, Chen, Youjun, Ajit, Aditi, Tabassum, Zarin, Lobrovich, Rebecca, Peterson, Claire +8 more·2020·Nature Communications

Abstract

Tauopathies including Alzheimer’s disease (AD) are marked by the accumulation of aberrantly modified tau proteins. Acetylated tau, in particular, has recently been implicated in neurodegeneration and cognitive decline. HDAC6 reversibly regulates tau acetylation, but its role in tauopathy progression remains unclear. Here, we identified an HDAC6-chaperone complex that targets aberrantly modified tau. HDAC6 not only deacetylates tau but also suppresses tau hyperphosphorylation within the microtubule-binding region. In neurons and human AD brain, HDAC6 becomes co-aggregated within focal tau swellings and human AD neuritic plaques. Using mass spectrometry, we identify a novel HDAC6-regulated tau acetylation site as a disease specific marker for 3R/4R and 3R tauopathies, supporting uniquely modified tau species in different neurodegenerative disorders. Tau transgenic mice lacking HDAC6 show reduced survival characterized by accelerated tau pathology and cognitive decline. We propose that a HDAC6-dependent surveillance mechanism suppresses toxic tau accumulation, which may protect against the progression of AD and related tauopathies.

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Authors
Trzeciakiewicz, H., Ajit, D., Tseng, J.-H., Chen, Y., Ajit, A., Tabassum, Z., Lobrovich, R., Peterson, C., Riddick, N. V., Itano, M. S., Tripathy, A., Moy, S. S., Lee, V. M. Y., Trojanowski, J. Q., Irwin, D. J., & Cohen, T. J.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • University of Pennsylvania (US)
Corresponding author
Cohen, Todd J.
Venue
Nature Communications
Published
2020-11-02
Volume
11
Issue
1
Pages
5522-5522
ISSN
2041-1723 (ISSN-L)
OpenAlex
W3096112623
Cited by
102
References
65
Citations by year
2026: 11 · 2025: 21 · 2024: 21 · 2023: 18 · 2022: 22 · 2021: 9
FWCI
7.67
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • UNC Libraries
Funders
  • U.S. Department of Health & Human Services | NIH | National Center for Advancing Translational Sciences (UL1TR001111)
  • Alzheimer’s Association (NIRG-14-321219)
  • Association for Frontotemporal Degeneration (-)
  • U.S. Department of Health & Human Services | NIH | National Institute on Aging (R21AG058080)
  • CurePSP (656-2018-06)
  • American Federation for Aging Research (RAG15247)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
HDAC6, tau acetylation, tauopathy, Alzheimer's disease, tau hyperphosphorylation, protein deacetylation, chaperone complex, tau aggregation, neuritic plaques, cognitive decline, tau transgenic mice, neurodegeneration
MeSH terms
Histone Deacetylase 6, Acetylation, Aged, Aged, 80 and over, Animals, Brain, Disease Models, Animal, Female, Humans, Male, Mice, Transgenic, Middle Aged, Phosphorylation, Protein Processing, Post-Translational, tau Proteins, Disease Progression, Tauopathies, Mice, Cognitive Dysfunction

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