Cited by 528Neurogenesis and neuroplasticity mechanismsAutophagy in Disease and TherapyGenetics, Aging, and Longevity in Model Organisms

Lysosome activation clears aggregates and enhances quiescent neural stem cell activation during aging

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Leeman, Dena S., Hebestreit, Katja, Ruetz, Tyson, Webb, Ashley E., McKay, Andrew, Pollina, Elizabeth A., Dulken, Ben W., Zhao, Xiaoai +8 more·2018·Science

Abstract

Lysosomes keep neuronal stem cells young: An important consequence of aging is loss of regenerative capacity in stem cells, particularly those of the nervous system. Leeman et al. isolated quiescent and activated stem cells from mice and compared their transcriptomes. The findings emphasize the role of large lysosomes in quiescent neuronal stem cells in which aggregated proteins accumulate. Treatments that stimulated lysosomal function allowed aged quiescent stem cells to clear protein aggregates and restored the cells' ability to be activated. Such restoration of stem cell function might alleviate compromised proteostasis in aging. Science , this issue p. 1277

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  • In quiescent neural stem cells from old mice, lysosome activity decreases with age and protein aggregates accumulate.

    “In quiescent NSCs from old mice, an age-dependent reduction of lysosome activity with accumulated protein aggregates was observed.”

    From NAD+ in Brain Aging and Neurodegenerative Disorders (2019) · cites this paper as Leeman et al., 2018

  • Enhancing lysosome activity in old quiescent neural stem cells by TFEB expression or rapamycin clears protein aggregates and inhibits NSC activation to maintain a youthful state.

    “Genetic (expression of the transcription factor EB/TFEB, a master regulator of autophagy and lysosome biogenesis) or pharmacological (feeding with the mTOR inhibitor rapamycin) enhancement of the lysosome activity in old quiescent NSCs cleared protein aggregates and inhibited the NSCs’ activation to maintain the “youthful state” (Leeman et al., 2018).”

    From NAD+ in Brain Aging and Neurodegenerative Disorders (2019) · cites this paper as Leeman et al., 2018

  • Activated NSCs exhibit fewer overall transcriptomic changes with ageing than quiescent NSCs.

    “Interestingly, activated NSCs exhibit fewer overall transcriptomic changes with ageing than quiescent NSCs6–9,63,64, perhaps because activated NSCs are recently generated and do not have the time to accumulate damage, or because they ‘dilute’ the damage as they proliferate.”
  • Age-dependent NSC decline can be reversed by expression of the master transcription factor for lysosomes TFEB and by nutrient deprivation.

    “Interestingly, age-dependent NSC decline can be reversed by expression of the master transcription factor for lysosomes TFEB and by nutrient deprivation64.”
  • Lysosomes are large and abundant in quiescent NSCs.

    “For example, lysosomes are large and abundant in quiescent NSCs64.”

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Research works printed but not linked: 3

  1. [4]Vilchez D Simic MS Dillin A Trends Cell Biol 24 161 170 2014 24094931
  2. [10]Capilla-Gonzalez V Cebrian-Silla A Guerrero-Cazares H Garcia-Verdugo JM Quiñones-Hinojosa A Glia 62 790 803 2014 24677590 PMC4322944
  3. [27]García-Prat L Nature 529 37 42 2016 26738589

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Authors
Leeman, D. S., Hebestreit, K., Ruetz, T., Webb, A. E., McKay, A., Pollina, E. A., Dulken, B. W., Zhao, X., Yeo, R. W., Ho, T. T., Mahmoudi, S., Devarajan, K., Passegué, E., Rando, T. A., Frydman, J., & Brunet, A.
Affiliations
  • Stanford University (US)
  • University of California, San Francisco (US)
  • The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division of Hematology and Oncology, University of California, San Francisco, San Francisco, CA 94143, USA.
  • Stanford Medicine (US)
Corresponding author
Brunet, Anne
Venue
Science
Published
2018-03-16
Volume
359
Issue
6381
Pages
1277-1283
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2792158423
Cited by
528
References
49
Citations by year
2026: 35 · 2025: 51 · 2024: 78 · 2023: 72 · 2022: 70 · 2021: 93 · 2020: 64 · 2019: 46 · 2018: 19
FWCI
20.44
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Science Foundation (T32 GM7365 ,P01 AG036695,T32 CA09302)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
neural stem cells, quiescent neural stem cells, protein aggregates, proteostasis, aging, proteasome, stem cell activation, lysosomal function, brain aging
MeSH terms
Aging, Animals, Cell Division, Lysosomes, Mice, Inbred C57BL, Cellular Senescence, Mice, Neural Stem Cells

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