Cited by 584Heat shock proteins researchGenetics, Aging, and Longevity in Model OrganismsGenetic Neurodegenerative Diseases

A chaperome subnetwork safeguards proteostasis in aging and neurodegenerative disease

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Brehme, Marc, Voisine, Cindy, Rolland, Thomas, Wachi, Shinichiro, Soper, James H., Zhu, Yitan, Orton, Kai, Villella, Adriana +4 more·2014·Cell Reports

Abstract

Chaperones are central to the proteostasis network (PN) and safeguard the proteome from misfolding, aggregation, and proteotoxicity. We categorized the human chaperome of 332 genes into network communities using function, localization, interactome, and expression data sets. During human brain aging, expression of 32% of the chaperome, corresponding to ATP-dependent chaperone machines, is repressed, whereas 19.5%, corresponding to ATP-independent chaperones and co-chaperones, are induced. These repression and induction clusters are enhanced in the brains of those with Alzheimer's, Huntington's, or Parkinson's disease. Functional properties of the chaperome were assessed by perturbation in C. elegans and human cell models expressing Aβ, polyglutamine, and Huntingtin. Of 219 C. elegans orthologs, knockdown of 16 enhanced both Aβ and polyQ-associated toxicity. These correspond to 28 human orthologs, of which 52% and 41% are repressed, respectively, in brain aging and disease and 37.5% affected Huntingtin aggregation in human cells. These results identify a critical chaperome subnetwork that functions in aging and disease.

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Crossref · 10.1016/j.celrep.2014.09.042

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  • In the aging brain, small HSPs show increased transcription, whereas most other major chaperones are reduced.

    “Notably, small HSPs are also transcriptionally induced in the aging brain, while most other major chaperone components are down-regulated (Brehme et al., 2014).”

    From Widespread Proteome Remodeling and Aggregation in Aging C. elegans (2015) · cites this paper as Brehme et al., 2014

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Authors
Brehme, M., Voisine, C., Rolland, T., Wachi, S., Soper, J. H., Zhu, Y., Orton, K., Villella, A., Garza, D., Vidal, M., Ge, H., & Morimoto, R. I.
Affiliations
  • Northwestern University (US)
  • Harvard University (US)
  • Proteostasis Therapeutics (United States) (US)
Corresponding author
  • Vidal, Marc
  • Ge, Hui
  • Morimoto, Richard I.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2014-11
Volume
9
Issue
3
Pages
1135-1150
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2122674036
Cited by
584
References
64
Citations by year
2026: 48 · 2025: 46 · 2024: 52 · 2023: 58 · 2022: 58 · 2021: 58 · 2020: 60 · 2019: 54 · 2018: 50 · 2017: 43 · 2016: 32 · 2015: 24
FWCI
13.46
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health
  • National Institute on Aging (R37AG026647, R01AG026647)
  • National Institute of Mental Health
  • National Human Genome Research Institute (P50HG004233)
  • National Cancer Institute (P30CA060553)
  • National Institute of General Medical Sciences (R01GM038109, R37GM038109)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
Keywords
proteostasis network, brain aging, neurodegenerative diseases, Alzheimer's disease, Huntington's disease, Parkinson's disease, molecular chaperones, protein misfolding, protein aggregation, proteotoxicity, ATP-dependent chaperones, ATP-independent chaperones, co-chaperones, amyloid-beta, polyglutamine, huntingtin aggregation
MeSH terms
Huntingtin Protein, Aging, Animals, Brain, Disease Models, Animal, Humans, Models, Biological, Nerve Tissue Proteins, Caenorhabditis elegans, Protein Folding, Molecular Chaperones, Neurodegenerative Diseases, Gene Regulatory Networks, Proteostasis Deficiencies, Protein Aggregation, Pathological

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