Cited by 133Circadian rhythm and melatoninSleep and Work-Related FatigueNetwork Time Synchronization Technologies

The light-dark cycle controls peripheral rhythmicity in mice with a genetically ablated suprachiasmatic nucleus clock

Husse, Jana, Leliavski, Alexei, Tsang, Anthony H., Oster, Henrik, Eichele, Gregor·2014·The FASEB Journal

Abstract

The mammalian circadian timing system consists of a master pacemaker in the suprachiasmatic nucleus (SCN), which is thought to synchronize peripheral clocks in various organs with each other and with external time. Our knowledge about the role of the SCN clock is based mainly on SCN lesion and transplantation studies. We have now directly deleted the SCN clock using the Cre/LoxP system and investigated how this affects synchronization of peripheral rhythms. Impaired locomotor activity and arrhythmic clock gene expression in the SCN confirm that the SCN clockwork was efficiently abolished in our mouse model. Nonetheless, under light-dark (LD) conditions, peripheral clocks remained rhythmic and synchronized to the LD cycle, and phase relationships between peripheral clocks were sustained. Adaptation to a shifted LD cycle was accelerated in SCN clock-deficient mice. Moreover, under zeitgeber-free conditions, rhythmicity of the peripheral clock gene expression was initially dampened, and after several days peripheral clocks were desynchronized. These findings suggest that the SCN clock is dispensable for the synchronization of peripheral clocks to the LD cycle. A model describing an SCN clock-independent pathway that synchronizes peripheral clocks with the LD cycle is discussed.

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Crossref · 10.1096/fj.14-256594

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49 of 49 references verified0 citation errors · 0 not checkable

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  • Peripheral clocks may synchronize to photic cues in the absence of a functional molecular clock in the SCN.

    “Recent evidence also suggests that peripheral clocks may synchronize to photic cues in the absence of a functional molecular clock in the SCN (18), although the mechanisms involved are not yet clear.”

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Authors
Husse, J., Leliavski, A., Tsang, A. H., Oster, H., & Eichele, G.
Affiliations
  • Max Planck Society (DE)
  • Max Planck Institute for Biophysical Chemistry Göttingen Germany
Corresponding author
Oster, Henrik
Venue
The FASEB Journal
Publisher
Wiley
Published
2014-07-25
Volume
28
Issue
11
Pages
4950-4960
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2131227905
Cited by
133
References
49
Citations by year
2026: 2 · 2025: 9 · 2024: 12 · 2023: 7 · 2022: 15 · 2021: 10 · 2020: 15 · 2019: 17 · 2018: 9 · 2017: 7 · 2016: 16 · 2015: 11 · 2014: 3
FWCI
6.00
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Digital Library (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
Max-Planck-Gesellschaft
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Physical Sciences › Computer Science › Computer Networks and Communications › Network Time Synchronization Technologies
Keywords
suprachiasmatic nucleus, circadian clock, light-dark cycle, clock gene expression, locomotor activity, zeitgebers, phase equilibria, Cre-loxP system, circadian system
MeSH terms
Animals, Circadian Rhythm, Motor Activity, Suprachiasmatic Nucleus, Gene Expression, Photoperiod, Mice, CLOCK Proteins, Circadian Clocks

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