Cited by 84Heat shock proteins researchNeurogenesis and neuroplasticity mechanismsEndoplasmic Reticulum Stress and Disease

Differentiation Drives Widespread Rewiring of the Neural Stem Cell Chaperone Network

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Vonk, Willianne I.M., Rainbolt, T. Kelly, Dolan, Patrick T., Webb, Ashley E., Brunet, Anne, Frydman, Judith·2020·Molecular Cell

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Abstract

Neural stem and progenitor cells (NSPCs) are critical for continued cellular replacement in the adult brain. Lifelong maintenance of a functional NSPC pool necessitates stringent mechanisms to preserve a pristine proteome. We find that the NSPC chaperone network robustly maintains misfolded protein solubility and stress resilience through high levels of the ATP-dependent chaperonin TRiC/CCT. Strikingly, NSPC differentiation rewires the cellular chaperone network, reducing TRiC/CCT levels and inducing those of the ATP-independent small heat shock proteins (sHSPs). This switches the proteostasis strategy in neural progeny cells to promote sequestration of misfolded proteins into protective inclusions. The chaperone network of NSPCs is more effective than that of differentiated cells, leading to improved management of proteotoxic stress and amyloidogenic proteins. However, NSPC proteostasis is impaired by brain aging. The less efficient chaperone network of differentiated neural progeny may contribute to their enhanced susceptibility to neurodegenerative diseases characterized by aberrant protein misfolding and aggregation.

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Crossref · 10.1016/j.molcel.2020.03.009

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  • The protein chaperone network is entirely rewired when NSCs give rise to differentiated progeny, and this rewiring is impaired during ageing.

    “Indeed, the protein chaperone network is entirely rewired when NSCs give rise to differentiated progeny, and this rewiring is impaired during ageing112.”

    From Ageing and rejuvenation of tissue stem cells and their niches (2023) · cites this paper as [112]

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Authors
Vonk, W. I. M., Rainbolt, T. K., Dolan, P. T., Webb, A. E., Brunet, A., & Frydman, J.
Affiliations
  • Stanford University (US)
  • Brown University (US)
  • Chan Zuckerberg Biohub San Francisco (US)
Corresponding author
  • Vonk, Willianne I.M.
  • Frydman, Judith
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2020-04
Volume
78
Issue
2
Pages
329-345.e9
ISSN
1097-2765 (ISSN-L)
OpenAlex
W3014998809
Cited by
84
References
97
Citations by year
2026: 6 · 2025: 10 · 2024: 16 · 2023: 11 · 2022: 12 · 2021: 17 · 2020: 12
FWCI
4.22
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • CHDI Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
Keywords
neural stem/progenitor cells, chaperone network, small heat shock proteins, proteostasis, protein misfolding, proteotoxic stress, amyloidogenic proteins, brain aging, neurodegenerative diseases, protein aggregation, cell differentiation
MeSH terms
Adenosine Triphosphate, Aging, Animals, Brain, Cell Differentiation, Saccharomyces cerevisiae, Stem Cells, Protein Folding, Gene Expression Regulation, Developmental, Molecular Chaperones, Chaperonins, Mice, Gene Regulatory Networks, Neural Stem Cells, Protein Aggregation, Pathological

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