Cited by 1,565Alzheimer's disease research and treatmentsSleep and Wakefulness ResearchNeuroinflammation and Neurodegeneration Mechanisms

Amyloid-β Dynamics Are Regulated by Orexin and the Sleep-Wake Cycle

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Kang, Jae-Eun, Lim, Miranda M., Bateman, Randall J., Lee, James J., Smyth, Liam P., Cirrito, John R., Fujiki, Nobuhiro, Nishino, Seiji +1 more·2009·Science

Abstract

Sleep and Alzheimer's Disease: Accumulation of amyloid-β (Aβ) in the brain is thought to be the initiating event in the pathogenesis of Alzheimer's disease (AD). Aβ is a peptide secreted in a soluble monomeric form predominantly by neurons and its aggregation into toxic forms is concentration dependent. Synaptic activity regulates the release of Aβ in vivo. However, how physiological and environmental processes are involved in regulation of Aβ levels is not understood. Kang et al. (p. 1005 , published online 24 September), by performing sleep-wake studies in freely behaving animals concomitant with in vivo microdialysis, found that brain interstitial fluid levels of Aβ were significantly correlated with wakefulness and negatively correlated with sleep. Furthermore, relatively short-term (3 weeks) sleep deprivation markedly accelerated amyloid plaque deposition in amyloid precursor protein transgenic mice. Thus, sleep-wake behavior is linked to Aβ levels and abnormal sleep may be linked to AD pathogenesis.

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Crossref · 10.1126/science.1180962

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  • The extracted pools measured do not completely reflect the ISF pool of Aβ.

    “perhaps suggesting the extracted pools we measured do not completely reflect the ISF pool of Aβ (31, 38).”
  • Amyloid-β, tau, and α-synuclein are present at higher levels in brain extracellular fluid and CSF during wakefulness than sleep; sleep deprivation increases their levels further.

    “amyloid-ß, tau and α-synuclein are all present at higher levels in the brain extracellular fluid and CSF during wakefulness than during sleep, and sleep deprivation increases their levels further (106–108).”

    From Glymphatic failure as a final common pathway to dementia (2020) · cites this paper as [107]

  • In mice, interstitial fluid Aβ levels correlate with wakefulness and increase after acute sleep deprivation or orexin infusion.

    “In animal microdialysis experiments, interstitial fluid (ISF) Aβ levels correlate with wakefulness and significantly increase following acute sleep deprivation or orexin infusion.”

    From Alzheimer Disease: An Update on Pathobiology and Treatment Strategies (2019) · cites this paper as Kang et al., 2009

  • Chronic orexin receptor blockade that increases sleep decreases amyloid plaque deposition.

    “A decrease in amyloid plaque deposition was observed after chronic orexin receptor blockade resulting in increased sleep (Kang et al., 2009).”

    From Alzheimer Disease: An Update on Pathobiology and Treatment Strategies (2019) · cites this paper as Kang et al., 2009

  • Acute sleep deprivation increases amyloid plaque deposition in Aβ-overexpressing mice.

    “In mice overexpressing Aβ, acute sleep deprivation caused a significant increase in amyloid plaque deposition.”

    From Alzheimer Disease: An Update on Pathobiology and Treatment Strategies (2019) · cites this paper as Kang et al., 2009

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Authors
Kang, J.-E., Lim, M. M., Bateman, R. J., Lee, J. J., Smyth, L. P., Cirrito, J. R., Fujiki, N., Nishino, S., & Holtzman, D. M.
Affiliations
  • Washington University in St. Louis (US)
  • Stanford Medicine (US)
Corresponding author
Holtzman, David M.
Venue
Science
Published
2009-11-13
Volume
326
Issue
5955
Pages
1005-1007
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2013333500
Cited by
1,565
References
14
Citations by year
2026: 108 · 2025: 120 · 2024: 124 · 2023: 112 · 2022: 111 · 2021: 136 · 2020: 131 · 2019: 111 · 2018: 98 · 2017: 97 · 2016: 87 · 2015: 79 · 2014: 70 · 2013: 55 · 2012: 45
FWCI
28.05
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (AG 025824, AG030946, R01AG025824, K01AG029524, P50AG005681, K23AG030946, AG029524)
  • National Institute of Mental Health (MH072525, R01MH072525)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK056341)
  • National Institute of Neurological Disorders and Stroke (NS065667, P30NS057105, R01NS065667)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
amyloid-beta, orexin, sleep-wake cycle, Alzheimer's disease, sleep deprivation, orexin receptor antagonists, brain interstitial fluid, amyloid plaques, amyloid precursor protein transgenic mice, amyloid-beta aggregation
MeSH terms
Orexins, Acetamides, Alzheimer Disease, Animals, Antigens, Surface, Circadian Rhythm, Disease Models, Animal, Female, Hippocampus, Humans, Isoquinolines, Light, Male, Mice, Inbred C57BL, Mice, Transgenic, Neuropeptides, Receptors, Cell Surface, Sleep, Sleep Deprivation, Wakefulness, Signal Transduction, Amyloid beta-Peptides, Receptors, Neuropeptide, Receptors, G-Protein-Coupled, Extracellular Fluid, Intracellular Signaling Peptides and Proteins, Mice, Orexin Receptors

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