Cited by 54Neuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanismsMultiple Sclerosis Research Studies

Transforming growth factor‐beta renders ageing microglia inhibitory to oligodendrocyte generation by CNS progenitors

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Baror, Roey, Neumann, Björn, Segel, Michael, Chalut, Kevin J., Fancy, Stephen P. J., Schafer, Dorothy P., Franklin, Robin J. M.·2019·Glia

Abstract

It is now well‐established that the macrophage and microglial response to CNS demyelination influences remyelination by removing myelin debris and secreting a variety of signaling molecules that influence the behaviour of oligodendrocyte progenitor cells (OPCs). Previous studies have shown that changes in microglia contribute to the age‐related decline in the efficiency of remyelination. In this study, we show that microglia increase their expression of the proteoglycan NG2 with age, and that this is associated with an altered micro‐niche generated by aged, but not young, microglia that can divert the differentiation OPCs from oligodendrocytes into astrocytes in vitro. We further show that these changes in ageing microglia are generated by exposure to high levels of TGFβ. Thus, our findings suggest that the rising levels of circulating TGFβ known to occur with ageing contribute to the age‐related decline in remyelination by impairing the ability of microglia to promote oligodendrocyte differentiation from OPCs, and therefore could be a potential therapeutic target to promote remyelination.

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  • ECM deposited by microglia in response to TGFβ redirects the fate of oligodendrocyte progenitor cells and renders them biased towards astrocytes during ageing.

    “ECM deposited by microglia in response to TGFβ redirects the fate of oligodendrocyte progenitor cells (OPCs) and renders them biased towards astrocytes during ageing140.”

    From Ageing and rejuvenation of tissue stem cells and their niches (2023) · cites this paper as [140]

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Authors
Baror, R., Neumann, B., Segel, M., Chalut, K. J., Fancy, S. P. J., Schafer, D. P., & Franklin, R. J. M.
Affiliations
  • University of California, San Francisco (US)
  • Wellcome/MRC Cambridge Stem Cell Institute (GB)
  • University of Massachusetts Chan Medical School (US)
Corresponding author
Franklin, Robin J. M.
Venue
Glia
Publisher
Wiley
Published
2019-03-12
Volume
67
Issue
7
Pages
1374-1384
ISSN
  • 0894-1491 (ISSN-L)
  • 1098-1136
OpenAlex
W2921725925
Cited by
54
References
56
Citations by year
2026: 8 · 2025: 3 · 2024: 5 · 2023: 7 · 2022: 7 · 2021: 7 · 2020: 11 · 2019: 6
FWCI
3.41
Type
journal article
Language
en
Open access
Locations
  • Glia (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship@UMassChan (submittedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Funders
Dr. Miriam and Sheldon G. Adelson Medical Research Foundation (50)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
microglia, aging, remyelination, oligodendrocyte precursor cells, oligodendrocyte differentiation, astrocyte differentiation, NG2 proteoglycan, TGF-beta, demyelination, myelin debris, age-related decline
MeSH terms
Oligodendrocyte Precursor Cells, Age Factors, Animals, Animals, Newborn, Cell Differentiation, Cells, Cultured, Central Nervous System, Dose-Response Relationship, Drug, Oligodendroglia, Transforming Growth Factor beta, Cellular Senescence, Rats, Sprague-Dawley, Microglia, Rats

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