Cited by 172Genetic Neurodegenerative DiseasesGenetics and Neurodevelopmental DisordersLysosomal Storage Disorders Research

HDAC4 Reduction: A Novel Therapeutic Strategy to Target Cytoplasmic Huntingtin and Ameliorate Neurodegeneration

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Mielcarek, Michal, Landles, Christian, Weiss, Andreas, Bradaia, Amyaouch, Seredenina, Tamara, Inuabasi, Linda, Osborne, Georgina F., Wadel, Kristian +13 more·2013·PLoS Biology

Abstract

Histone deacetylase (HDAC) 4 is a transcriptional repressor that contains a glutamine-rich domain. We hypothesised that it may be involved in the molecular pathogenesis of Huntington's disease (HD), a protein-folding neurodegenerative disorder caused by an aggregation-prone polyglutamine expansion in the huntingtin protein. We found that HDAC4 associates with huntingtin in a polyglutamine-length-dependent manner and co-localises with cytoplasmic inclusions. We show that HDAC4 reduction delayed cytoplasmic aggregate formation, restored Bdnf transcript levels, and rescued neuronal and cortico-striatal synaptic function in HD mouse models. This was accompanied by an improvement in motor coordination, neurological phenotypes, and increased lifespan. Surprisingly, HDAC4 reduction had no effect on global transcriptional dysfunction and did not modulate nuclear huntingtin aggregation. Our results define a crucial role for the cytoplasmic aggregation process in the molecular pathology of HD. HDAC4 reduction presents a novel strategy for targeting huntingtin aggregation, which may be amenable to small-molecule therapeutics.

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  • Cytoplasmic HDAC4 may have neuroprotective effects.

    “HDAC4 in the cytoplasm may have neuroprotective effects.145–147”

    From Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential (2023) · cites this paper as [147]

    The Discussion reports the opposite effect in Huntington’s disease mouse models: reducing HDAC4 delayed cytoplasmic aggregation, restored synaptic function, and improved neurological outcomes. It describes the relevant cytoplasmic mechanism as contributing to neurodegeneration, not as neuroprotective. (LLM, conf=0.89)

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  • Inhibiting HDAC4 delayed huntingtin protein cytoplasmic aggregate formation, restored BDNF transcript levels, and restored neuronal and cortico-striatal synaptic function in mouse models of neurological disorders.

    “Inhibiting HDAC4 delayed the formation of huntingtin protein cytoplasmic aggregates, while the levels of BDNF transcripts were restored, resulting in the restoration of neuronal and cortico-striatal synaptic function in mouse models of neurological disorders.147”

    From Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential (2023) · cites this paper as [147]

    The Results report that HDAC4 reduction almost restored dysregulated Bdnf transcripts in R6/2 mice, and the Introduction reports delayed cytoplasmic huntingtin aggregation and improved neuronal membrane properties and corticostriatal transmission. The claim extends these findings from Huntington’s disease mouse models to mouse models of neurological disorders generally. The paper also does not establish that restored Bdnf transcripts caused the synaptic improvement. (LLM, conf=0.85)

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Authors
Mielcarek, M., Landles, C., Weiss, A., Bradaia, A., Seredenina, T., Inuabasi, L., Osborne, G. F., Wadel, K., Touller, C., Butler, R., Robertson, J., Franklin, S. A., Smith, D. L., Park, L., Marks, P. A., Wanker, E. E., Olson, E. N., Luthi-Carter, R., van der Putten, H., Beaumont, V., & Bates, G. P.
Affiliations
  • King's College London (GB)
  • Novartis (Switzerland) (CH)
  • École Polytechnique Fédérale de Lausanne (CH)
  • CHDI Foundation (US)
  • Memorial Sloan Kettering Cancer Center (US)
  • Max Delbrück Center (DE)
  • The University of Texas Southwestern Medical Center (US)
Corresponding author
Bates, Gillian P.
Venue
PLoS Biology
Published
2013-11-26
Volume
11
Issue
11
Pages
e1001717
ISSN
  • 1544-9173 (ISSN-L)
  • 1545-7885
OpenAlex
W2100574142
Cited by
172
References
66
Citations by year
2026: 7 · 2025: 9 · 2024: 11 · 2023: 9 · 2022: 12 · 2021: 14 · 2020: 14 · 2019: 10 · 2018: 12 · 2017: 12 · 2016: 16 · 2015: 21 · 2014: 23 · 2013: 2
FWCI
10.14
Type
journal article
Language
en
Open access
Locations
  • PLoS Biology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • CHDI Foundation
  • King's College London
  • Deutsche Forschungsgemeinschaft (SFB618, SFB740)
  • Bundesministerium für Bildung und Forschung
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
Keywords
HDAC4, Huntington's disease, huntingtin, polyglutamine expansion, cytoplasmic aggregation, protein aggregation, brain-derived neurotrophic factor, corticostriatal synapses, motor coordination, lifespan, small molecule drugs, glutamine-rich domain
MeSH terms
Huntingtin Protein, Animals, Cerebral Cortex, Female, Histone Deacetylases, Huntington Disease, Male, Mice, Inbred CBA, Mice, Inbred C57BL, Nerve Tissue Proteins, Synaptic Transmission, Neurons, Nuclear Proteins, Phenotype, Transcription, Genetic, Mice, Knockout, Brain-Derived Neurotrophic Factor, Epigenesis, Genetic, Rotarod Performance Test, Mice, Gene Knockdown Techniques, Mice, 129 Strain

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