PreprintCited by 872Heat shock proteins researchGenetics, Aging, and Longevity in Model OrganismsEndoplasmic Reticulum Stress and Disease

Proteotoxic stress and inducible chaperone networks in neurodegenerative disease and aging

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Morimoto, Richard I.·2008·Genes & Development

Abstract

The long-term health of the cell is inextricably linked to protein quality control. Under optimal conditions this is accomplished by protein homeostasis, a highly complex network of molecular interactions that balances protein biosynthesis, folding, translocation, assembly/disassembly, and clearance. This review will examine the consequences of an imbalance in homeostasis on the flux of misfolded proteins that, if unattended, can result in severe molecular damage to the cell. Adaptation and survival requires the ability to sense damaged proteins and to coordinate the activities of protective stress response pathways and chaperone networks. Yet, despite the abundance and apparent capacity of chaperones and other components of homeostasis to restore folding equilibrium, the cell appears poorly adapted for chronic proteotoxic stress when conformationally challenged aggregation-prone proteins are expressed in cancer, metabolic disease, and neurodegenerative disease. The decline in biosynthetic and repair activities that compromises the integrity of the proteome is influenced strongly by genes that control aging, thus linking stress and protein homeostasis with the health and life span of the organism.

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Authors
Morimoto, R. I.
Affiliations
Northwestern University (US)
Corresponding author
Morimoto, Richard I.
Venue
Genes & Development
Published
2008-06-01
Volume
22
Issue
11
Pages
1427-1438
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2132296982
Cited by
872
References
127
Citations by year
2026: 22 · 2025: 20 · 2024: 18 · 2023: 20 · 2022: 28 · 2021: 35 · 2020: 29 · 2019: 41 · 2018: 32 · 2017: 44 · 2016: 47 · 2015: 70 · 2014: 80 · 2013: 75 · 2012: 62
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • ALS Association
  • National Institutes of Health
  • National Institute on Aging
  • National Institute of General Medical Sciences
  • National Institute of Neurological Disorders and Stroke
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 › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
Keywords
proteotoxic stress, proteostasis, chaperone network, neurodegenerative diseases, aging, protein misfolding, protein aggregation, stress response pathways, cancer, metabolic disorders, lifespan
MeSH terms
Aging, Animals, Forecasting, Heat-Shock Proteins, Humans, Models, Biological, Protein Conformation, Protein Folding, Molecular Chaperones, Neurodegenerative Diseases, Proteomics

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