When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives

For decades, numerous seminal studies have built our understanding of the <i>locus coeruleus</i> (LC), the vertebrate brain’s principal noradrenergic system. Containing a numerically small but broadly efferent cell population, the LC provides brain-wide noradrenergic modulation that opti...

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Main Authors: Alejandro Osorio-Forero, Najma Cherrad, Lila Banterle, Laura M. J. Fernandez, Anita Lüthi
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/9/5028
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author Alejandro Osorio-Forero
Najma Cherrad
Lila Banterle
Laura M. J. Fernandez
Anita Lüthi
author_facet Alejandro Osorio-Forero
Najma Cherrad
Lila Banterle
Laura M. J. Fernandez
Anita Lüthi
author_sort Alejandro Osorio-Forero
collection DOAJ
description For decades, numerous seminal studies have built our understanding of the <i>locus coeruleus</i> (LC), the vertebrate brain’s principal noradrenergic system. Containing a numerically small but broadly efferent cell population, the LC provides brain-wide noradrenergic modulation that optimizes network function in the context of attentive and flexible interaction with the sensory environment. This review turns attention to the LC’s roles during sleep. We show that these roles go beyond down-scaled versions of the ones in wakefulness. Novel dynamic assessments of noradrenaline signaling and LC activity uncover a rich diversity of activity patterns that establish the LC as an integral portion of sleep regulation and function. The LC could be involved in beneficial functions for the sleeping brain, and even minute alterations in its functionality may prove quintessential in sleep disorders.
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spelling doaj.art-c4d064c18ae84b399f40ce3bd41e67682023-11-23T08:25:57ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-04-01239502810.3390/ijms23095028When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging PerspectivesAlejandro Osorio-Forero0Najma Cherrad1Lila Banterle2Laura M. J. Fernandez3Anita Lüthi4Department of Fundamental Neurosciences, University of Lausanne, CH-1005 Lausanne, SwitzerlandDepartment of Fundamental Neurosciences, University of Lausanne, CH-1005 Lausanne, SwitzerlandDepartment of Fundamental Neurosciences, University of Lausanne, CH-1005 Lausanne, SwitzerlandDepartment of Fundamental Neurosciences, University of Lausanne, CH-1005 Lausanne, SwitzerlandDepartment of Fundamental Neurosciences, University of Lausanne, CH-1005 Lausanne, SwitzerlandFor decades, numerous seminal studies have built our understanding of the <i>locus coeruleus</i> (LC), the vertebrate brain’s principal noradrenergic system. Containing a numerically small but broadly efferent cell population, the LC provides brain-wide noradrenergic modulation that optimizes network function in the context of attentive and flexible interaction with the sensory environment. This review turns attention to the LC’s roles during sleep. We show that these roles go beyond down-scaled versions of the ones in wakefulness. Novel dynamic assessments of noradrenaline signaling and LC activity uncover a rich diversity of activity patterns that establish the LC as an integral portion of sleep regulation and function. The LC could be involved in beneficial functions for the sleeping brain, and even minute alterations in its functionality may prove quintessential in sleep disorders.https://www.mdpi.com/1422-0067/23/9/5028NREM sleepREM sleepmonoaminenoradrenalinearousabilitysleep architecture
spellingShingle Alejandro Osorio-Forero
Najma Cherrad
Lila Banterle
Laura M. J. Fernandez
Anita Lüthi
When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives
International Journal of Molecular Sciences
NREM sleep
REM sleep
monoamine
noradrenaline
arousability
sleep architecture
title When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives
title_full When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives
title_fullStr When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives
title_full_unstemmed When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives
title_short When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives
title_sort when the locus coeruleus speaks up in sleep recent insights emerging perspectives
topic NREM sleep
REM sleep
monoamine
noradrenaline
arousability
sleep architecture
url https://www.mdpi.com/1422-0067/23/9/5028
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