Cited by 56Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

DNA damage-associated oligodendrocyte degeneration precedes amyloid pathology and contributes to Alzheimer’s disease and dementia

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Tse, Kai‐Hei, Cheng, Aifang, Ma, Fulin, Herrup, Karl·2018·Alzheimer's & Dementia

Abstract

INTRODUCTION: In looking for novel non-amyloid-based etiologies for Alzheimer's disease, we explore the hypothesis that age-related myelin loss is an attractive explanation for age-associated cognitive decline and dementia. METHODS: We performed a meta-analysis of data in the National Alzheimer's Coordinating Center database accompanied by quantitative histopathology of myelin and oligodendrocytes (OLs) in frontal cortices of 24 clinically characterized individuals. Pathological findings were further validated in an Alzheimer's disease mouse model and in culture. RESULTS: Myelin lesions increased with cognitive impairment in an amyloid-independent fashion with signs of degeneration appearing before neuronal loss. Myelinating OLs in the gray matter showed greater vulnerability than those in white matter, and the degenerative changes correlated with evidence of DNA damage. Similar results were found in myelinating OL cultures where DNA damage caused aberrant OL cell cycle re-entry and death. DISCUSSION: We present the first comprehensive analysis of the cell biology of early myelin loss in sporadic Alzheimer's disease.

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Authors
Tse, K., Cheng, A., Ma, F., & Herrup, K.
Affiliations
Hong Kong University of Science and Technology (HK)
Corresponding author
Tse, Kai‐Hei
Venue
Alzheimer's & Dementia
Publisher
Wiley
Published
2018-01-09
Volume
14
Issue
5
Pages
664-679
ISSN
  • 1552-5260 (ISSN-L)
  • 1552-5279
OpenAlex
W2784120777
Cited by
56
References
87
Citations by year
2026: 11 · 2025: 7 · 2024: 3 · 2023: 7 · 2022: 7 · 2021: 9 · 2020: 10 · 2019: 1 · 2018: 1
FWCI
0.69
Type
journal article
Language
en
Open access
Locations
  • Alzheimer s & Dementia (publishedVersion, public-domain)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
Funders
National Institute on Aging (P30 AG019610, P30 AG013846, P50 AG008702, P50 AG025688, P50 AG047266, P30 AG010133, P50 AG005146, P50 AG005134, P50 AG016574, P50 AG005138, P30 AG008051, P30 AG013854, P30 AG008017, P30 AG010161, P50 AG047366, P30 AG010129, P50 AG016573, P50 AG016570, P50 AG005131, P50 AG023501, P30 AG035982, P30 AG028383, P30 AG010124, P50 AG005133, P50 AG005142, P30 AG012300, P50 AG005136, P50 AG033514, P50 AG005681, P50 AG047270, U01 AG016976)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, oligodendrocyte degeneration
MeSH terms
Aged, Animals, Cross-Sectional Studies, Dementia, Disease Models, Animal, DNA Damage, Frontal Lobe, Humans, Mice, Transgenic, Middle Aged, Oligodendroglia, Plaque, Amyloid, White Matter

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