Cited by 61Neurogenesis and neuroplasticity mechanismsMultiple Sclerosis Research StudiesNeuroinflammation and Neurodegeneration Mechanisms

Functional genomic analyses highlight a shift in Gpr17 ‐regulated cellular processes in oligodendrocyte progenitor cells and underlying myelin dysregulation in the aged mouse cerebrum

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Rivera, Andrea D., Pieropan, Francesca, Chacon‐De‐La‐Rocha, Irene, Lecca, Davide, Abbracchio, Maria P., Azim, Kasum, Butt, Arthur M.·2021·Aging Cell

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Abstract

Brain ageing is characterised by a decline in neuronal function and associated cognitive deficits. There is increasing evidence that myelin disruption is an important factor that contributes to the age-related loss of brain plasticity and repair responses. In the brain, myelin is produced by oligodendrocytes, which are generated throughout life by oligodendrocyte progenitor cells (OPCs). Currently, a leading hypothesis points to ageing as a major reason for the ultimate breakdown of remyelination in Multiple Sclerosis (MS). However, an incomplete understanding of the cellular and molecular processes underlying brain ageing hinders the development of regenerative strategies. Here, our combined systems biology and neurobiological approach demonstrate that oligodendroglial and myelin genes are amongst the most altered in the ageing mouse cerebrum. This was underscored by the identification of causal links between signalling pathways and their downstream transcriptional networks that define oligodendroglial disruption in ageing. The results highlighted that the G-protein coupled receptor Gpr17 is central to the disruption of OPCs in ageing and this was confirmed by genetic fate-mapping and cellular analyses. Finally, we used systems biology strategies to identify therapeutic agents that rejuvenate OPCs and restore myelination in age-related neuropathological contexts.

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  • The strong activation of immune- and inflammation-related genes, as well as differential expression of remyelination regulators like Gpr17, suggest that the homeostasis of white matter is compromised at old age.

    “The strong activation of immune- and inflammation-related genes, as well as differential expression of remyelination regulators like Gpr17 (Dziedzic et al., 2020; Rivera et al., 2021), suggest that the homeostasis of this region is compromised at old age.”

    From Atlas of the aging mouse brain reveals white matter as vulnerable foci (2023) · cites this paper as Rivera et al., 2021

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Authors
Rivera, A. D., Pieropan, F., Chacon‐De‐La‐Rocha, I., Lecca, D., Abbracchio, M. P., Azim, K., & Butt, A. M.
Affiliations
  • University of Padua (IT)
  • University of Portsmouth (GB)
  • School of Pharmacy and Biomedical Science University of Portsmouth Portsmouth UK
  • University of Milan (IT)
  • Heinrich Heine University Düsseldorf (DE)
Corresponding author
  • Azim, Kasum
  • Butt, Arthur M.
Venue
Aging Cell
Publisher
Wiley
Published
2021-03-05
Volume
20
Issue
4
Pages
e13335-e13335
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W3135398361
Cited by
61
References
87
Citations by year
2026: 3 · 2025: 15 · 2024: 8 · 2023: 14 · 2022: 13 · 2021: 8
FWCI
3.88
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, other-oa)
Funders
  • Deutsche Forschungsgemeinschaft (AZ115/1‐1)
  • Egészségügyi Tudományos Tanács (MR/P025811/1)
  • Biotechnology and Biological Sciences Research Council (BB/M029379/1)
  • Anatomical Society
  • Multiple Sclerosis Society
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
GPR17, oligodendrocyte precursor cells, brain aging, myelin damage, G protein-coupled receptors, remyelination, multiple sclerosis, transcriptional regulatory networks, signaling pathways, fate mapping, myelination, therapeutic agents
MeSH terms
Oligodendrocyte Precursor Cells, RNA-Seq, Aging, Animals, Cell Differentiation, Mice, Inbred C57BL, Mice, Transgenic, Myelin Sheath, Nerve Tissue Proteins, Neurons, Signal Transduction, Genomics, Receptors, G-Protein-Coupled, Mice, Cerebrum, Transcriptome

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