Cited by 346Alzheimer's disease research and treatmentsNeurogenesis and neuroplasticity mechanismsNeuroinflammation and Neurodegeneration Mechanisms

Enhancing myelin renewal reverses cognitive dysfunction in a murine model of Alzheimer’s disease

Open access
Chen, Jing-Fei, Liu, Kun, Hu, Bo, Li, Rong-Rong, Xin, Wendy, Chen, Hao, Wang, Fei, Chen, Lin +5 more·2021·Neuron

Abstract

Severe cognitive decline is a hallmark of Alzheimer's disease (AD). In addition to gray matter loss, significant white matter pathology has been identified in AD patients. Here, we characterized the dynamics of myelin generation and loss in the APP/PS1 mouse model of AD. Unexpectedly, we observed a dramatic increase in the rate of new myelin formation in APP/PS1 mice, reminiscent of the robust oligodendroglial response to demyelination. Despite this increase, overall levels of myelination are decreased in the cortex and hippocampus of APP/PS1 mice and postmortem AD tissue. Genetically or pharmacologically enhancing myelin renewal, by oligodendroglial deletion of the muscarinic M1 receptor or systemic administration of the pro-myelinating drug clemastine, improved the performance of APP/PS1 mice in memory-related tasks and increased hippocampal sharp wave ripples. Taken together, these results demonstrate the potential of enhancing myelination as a therapeutic strategy to alleviate AD-related cognitive impairment.

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Crossref · 10.1016/j.neuron.2021.05.012

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  • Nearly all studies of oligodendrocytes and myelin in amyloid mouse models of AD have focused on the effect of amyloid plaques and Aβ on oligodendrocytes and myelin, partially describing secondary demyelination or hypomyelination.

    “Nearly all have focused on the effect of amyloid plaques and Aβ on oligodendrocytes and myelin, partially describing secondary demyelination or hypomyelination.”

    From Myelin dysfunction drives amyloid-β deposition in models of Alzheimer’s disease (2023) · cites this paper as [20]

    The Introduction (page unavailable) reports that Aβ deposition causes focal demyelination and changes in oligodendrocyte precursor cells in AD mouse models. It does not establish that nearly all prior studies focused on plaque or Aβ effects, or characterize their findings as secondary hypomyelination. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Only a few studies have experimentally investigated oligodendrocytes and myelin in amyloid mouse models of AD.

    “Only a few studies have experimentally investigated oligodendrocytes and myelin in amyloid mouse models of AD20,21,41–43.”
  • Myelin alterations have been implicated in Alzheimer's disease.

    “myelin alterations have been implicated in AD7–9”

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Authors
Chen, J.-F., Liu, K., Hu, B., Li, R.-R., Xin, W., Chen, H., Wang, F., Chen, L., Li, R.-X., Ren, S.-Y., Xiao, L., Chan, J. R., & Mei, F.
Affiliations
  • Army Medical University (CN)
  • University of California, San Francisco (US)
Corresponding author
  • Xiao, Lan
  • Chan, Jonah R.
  • Mei, Feng
Venue
Neuron
Publisher
Elsevier BV
Published
2021-07
Volume
109
Issue
14
Pages
2292-2307.e5
ISSN
0896-6273 (ISSN-L)
OpenAlex
W3169884592
Cited by
346
References
71
Citations by year
2026: 55 · 2025: 75 · 2024: 70 · 2023: 75 · 2022: 52 · 2021: 17 · 2020: 1 · 2012: 1
FWCI
33.58
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Chongqing Science and Technology Commission
  • Doctor Miriam and Sheldon G Adelson Medical Research Foundation
  • National Institutes of Health
  • Chongqing Municipal Education Commission
  • National Institute of Neurological Disorders and Stroke
  • National Natural Science Foundation of China
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, myelination, white matter pathology, APP/PS1 mice, oligodendrocytes, demyelination, M1 muscarinic receptor, clemastine, cognitive impairment, memory, hippocampal ripples, treatment options
MeSH terms
Alzheimer Disease, Animals, Cerebral Cortex, Disease Models, Animal, Mice, Transgenic, Myelin Sheath, Amyloid beta-Protein Precursor, Maze Learning, Mice, Presenilin-1, Cognitive Dysfunction

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