Cited by 532Neurogenesis and neuroplasticity mechanismsCellular Mechanics and InteractionsMesenchymal stem cell research

Niche stiffness underlies the ageing of central nervous system progenitor cells

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Segel, Michael, Neumann, Björn, Hill, Myfanwy F. E., Weber, Isabell P., Viscomi, Carlo, Zhao, Chao, Young, Adam, Agley, Chibeza C. +8 more·2019·Nature

Abstract

Ageing causes a decline in tissue regeneration owing to a loss of function of adult stem cell and progenitor cell populations 1. One example is the deterioration of the regenerative capacity of the widespread and abundant population of central nervous system (CNS) multipotent stem cells known as oligodendrocyte progenitor cells (OPCs)2. A relatively overlooked potential source of this loss of function is the stem cell 'niche'-a set of cell-extrinsic cues that include chemical and mechanical signals 3,4. Here we show that the OPC microenvironment stiffens with age, and that this mechanical change is sufficient to cause age-related loss of function of OPCs. Using biological and synthetic scaffolds to mimic the stiffness of young brains, we find that isolated aged OPCs cultured on these scaffolds are molecularly and functionally rejuvenated. When we disrupt mechanical signalling, the proliferation and differentiation rates of OPCs are increased. We identify the mechanoresponsive ion channel PIEZO1 as a key mediator of OPC mechanical signalling. Inhibiting PIEZO1 overrides mechanical signals in vivo and allows OPCs to maintain activity in the ageing CNS. We also show that PIEZO1 is important in regulating cell number during CNS development. Thus we show that tissue stiffness is a crucial regulator of ageing in OPCs, and provide insights into how the function of adult stem and progenitor cells changes with age. Our findings could be important not only for the development of regenerative therapies, but also for understanding the ageing process itself.

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  • Increased stiffness was observed in ageing brain tissue.

    “Increased stiffness was observed in ageing brain tissue80.”
  • ECM stiffness has a strong effect on OPC proliferation and differentiation during ageing; OPC niche stiffness drastically increases with age; a softer niche is sufficient to restore OPC proliferation; and niche stiffness is mediated by the mechanosensitive ion channel PIEZO1 in OPCs.

    “In the central nervous system, transplantation experiments in rats indicate that ECM stiffness has a strong effect on OPC proliferation and differentiation during ageing80. OPC niche stiffness drastically increased with age, as determined by atomic force microscopy in the prefrontal cortex80. A softer niche is sufficient to restore OPC proliferation. Interestingly, niche stiffness is mediated by”

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Authors
Segel, M., Neumann, B., Hill, M. F. E., Weber, I. P., Viscomi, C., Zhao, C., Young, A., Agley, C. C., Thompson, A. J., Gonzalez, G. A., Sharma, A., Holmqvist, S., Rowitch, D. H., Franze, K., Franklin, R. J. M., & Chalut, K. J.
Affiliations
  • Wellcome/MRC Cambridge Stem Cell Institute (GB)
  • University of Cambridge (GB)
Corresponding author
  • Franklin, Robin J. M.
  • Chalut, Kevin J.
Venue
Nature
Published
2019-08-15
Volume
573
Issue
7772
Pages
130-134
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2968420254
Cited by
532
References
33
Citations by year
2026: 75 · 2025: 76 · 2024: 85 · 2023: 85 · 2022: 71 · 2021: 65 · 2020: 62 · 2019: 12
FWCI
19.77
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Apollo
Funders
  • Dr. Miriam and Sheldon G. Adelson Medical Research Foundation
  • Wellcome Trust (772426, 203151/Z/16/Z, 203151)
  • Multiple Sclerosis Society
  • Rosetrees Trust
  • Cambridge University Hospitals (146281)
  • Directorate for Biological Sciences
  • Medical Research Council (MC_PC_12009, MR/M011089/1, MR/R015635/1, MR/K017047/1)
  • Biotechnology and Biological Sciences Research Council (BB/N006402/1, BB/M008827/1)
  • H2020 European Research Council (772798, 772426)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
Keywords
tissue stiffness, aging, oligodendrocyte precursor cells, stem cell niche, mechanical signalling, Piezo1, mechanosensitive ion channels, stem cell rejuvenation, synthetic scaffolds, cell proliferation and differentiation, central nervous system development, tissue regeneration
MeSH terms
Aging, Animals, Animals, Newborn, Cell Count, Central Nervous System, Extracellular Matrix, Female, Humans, Ion Channels, Membrane Proteins, Oligodendroglia, Multipotent Stem Cells, Rats, Adult Stem Cells, Stem Cell Niche

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