Cited by 988Alzheimer's disease research and treatmentsTelomeres, Telomerase, and SenescenceNeuroinflammation and Neurodegeneration Mechanisms

The DOI matches its Crossref record; 47 of the 48 references it cites were found in a registry or an index.

Senolytic therapy alleviates Aβ-associated oligodendrocyte progenitor cell senescence and cognitive deficits in an Alzheimer’s disease model

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Abstract

Neuritic plaques, a pathological hallmark in Alzheimer's disease (AD) brains, comprise extracellular aggregates of amyloid-beta (Aβ) peptide and degenerating neurites that accumulate autolysosomes. We found that, in the brains of patients with AD and in AD mouse models, Aβ plaque-associated Olig2- and NG2-expressing oligodendrocyte progenitor cells (OPCs), but not astrocytes, microglia, or oligodendrocytes, exhibit a senescence-like phenotype characterized by the upregulation of p21/CDKN1A, p16/INK4/CDKN2A proteins, and senescence-associated β-galactosidase activity. Molecular interrogation of the Aβ plaque environment revealed elevated levels of transcripts encoding proteins involved in OPC function, replicative senescence, and inflammation. Direct exposure of cultured OPCs to aggregating Aβ triggered cell senescence. Senolytic treatment of AD mice selectively removed senescent cells from the plaque environment, reduced neuroinflammation, lessened Aβ load, and ameliorated cognitive deficits. Our findings suggest a role for Aβ-induced OPC cell senescence in neuroinflammation and cognitive deficits in AD, and a potential therapeutic benefit of senolytic treatments.

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Metadata

Authors
Zhang, P., Kishimoto, Y., Grammatikakis, I., Gottimukkala, K., Cutler, R. G., Zhang, S., Abdelmohsen, K., Bohr, V. A., Misra Sen, J., Gorospe, M., & Mattson, M. P.
Affiliations
National Institutes of Health (US)
Corresponding author
  • Zhang, Peisu
  • Mattson, Mark P.
Venue
Nature Neuroscience
Published
2019-04-01
Volume
22
Issue
5
Pages
719-728
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2928157366
Cited by
977
References
48
Citations by year
2026: 109 · 2025: 157 · 2024: 168 · 2023: 135 · 2022: 133 · 2021: 131 · 2020: 118 · 2019: 26
FWCI
69.44
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (Z99 AG999999)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
senolytic therapy, Alzheimer's disease, amyloid-beta, oligodendrocyte precursor cells, cellular senescence, neuroinflammation, cognitive impairment, senescent cell clearance, Olig2, NG2, replicative senescence, senescence-associated β-galactosidase, CDKN1A/p21, CDKN2A/p16, amyloid plaques
MeSH terms
Dasatinib, Oligodendrocyte Precursor Cells, Alzheimer Disease, Animals, Disease Models, Animal, Female, Male, Mice, Transgenic, Quercetin, Amyloid beta-Peptides, Prosencephalon, Cellular Senescence, Maze Learning, Plaque, Amyloid

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