Cited by 97Ion channel regulation and functionNeural dynamics and brain functionSleep and Wakefulness Research

An unexpected role for TASK-3 potassium channels in network oscillations with implications for sleep mechanisms and anesthetic action

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Pang, Daniel S. J., Robledo, Christian J., Carr, David R., Gent, Thomas C., Vyssotski, Alexei L., Caley, Alex, Zecharia, Anna Y., Wisden, William +2 more·2009·Proceedings of the National Academy of Sciences

Abstract

TASK channels are acid-sensitive and anesthetic-activated members of the family of two-pore-domain potassium channels. We have made the surprising discovery that the genetic ablation of TASK-3 channels eliminates a specific type of theta oscillation in the cortical electroencephalogram (EEG) resembling type II theta (4–9 Hz), which is thought to be important in processing sensory stimuli before initiating motor activity. In contrast, ablation of TASK-1 channels has no effect on theta oscillations. Despite the absence of type II theta oscillations in the TASK-3 knockout (KO) mice, the related type I theta, which has certain neuronal pathways in common and is involved in exploratory behavior, is unaffected. In addition to the absence of type II theta oscillations, the TASK-3 KO animals show marked alterations in both anesthetic sensitivity and natural sleep behavior. Their sensitivity to halothane, a potent activator of TASK channels, is greatly reduced, whereas their sensitivity to cyclopropane, which does not activate TASK-3 channels, is unchanged. The TASK-3 KO animals exhibit a slower progression from their waking to sleeping states and, during their sleeping period, their sleep episodes as well as their REM theta oscillations are more fragmented. These results imply a previously unexpected role for TASK-3 channels in the cellular mechanisms underlying these behaviors and suggest that endogenous modulators of these channels may regulate theta oscillations.

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Crossref · 10.1073/pnas.0907228106

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  • Deletion of TASK-1 and TASK-3 in mice is linked to partial volatile anesthetic resistance; loss of TASK-3 reduces halothane sensitivity, stabilizes wakefulness, and slows transitions into sleep.

    “Although deletion of TASK-1 and TASK-3 channels in mice is also associated with partial resistance to volatile anesthetics, the specific loss of TASK-3 not only reduces sensitivity to halothane, it also appears to stabilize the awake state and slows transitions into states of endogenous sleep [51, 52].”

    From The Biology of General Anesthesia from Paramecium to Primate (2019) · cites this paper as [52]

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Authors
Pang, D. S. J., Robledo, C. J., Carr, D. R., Gent, T. C., Vyssotski, A. L., Caley, A., Zecharia, A. Y., Wisden, W., Brickley, S. G., & Franks, N. P.
Affiliations
  • Imperial College London (GB)
  • University of Zurich (CH)
  • UCL School of Pharmacy (GB)
Corresponding author
  • Pang, Daniel S. J.
  • Robledo, Christian J.
  • Franks, Nicholas P.
Venue
Proceedings of the National Academy of Sciences
Published
2009-10-13
Volume
106
Issue
41
Pages
17546-17551
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2096377596
Cited by
97
References
51
Citations by year
2025: 6 · 2024: 4 · 2023: 3 · 2022: 11 · 2021: 7 · 2020: 4 · 2019: 5 · 2018: 6 · 2017: 6 · 2016: 2 · 2015: 6 · 2014: 9 · 2013: 6 · 2012: 8
FWCI
2.96
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
Biotechnology and Biological Sciences Research Council (G021691, BB/G021619/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
two-pore domain potassium channels, REM sleep, sleep onset, anesthetic sensitivity, halothane, cyclopropanes, cortical EEG, sleep fragmentation, knockout mice, sleep-wake transition
MeSH terms
Animals, Circadian Rhythm, Electroencephalography, Electromyography, Genotype, Oscillometry, Sleep, Wakefulness, Mice, Knockout, Potassium Channels, Tandem Pore Domain, Mice

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