Cited by 803Circadian rhythm and melatoninBipolar Disorder and TreatmentNeurotransmitter Receptor Influence on Behavior

Mania-like behavior induced by disruption of CLOCK

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Roybal, Kole, Theobold, David, Graham, Ami, DiNieri, Jennifer A., Russo, Scott J., Krishnan, Vaishnav, Chakravarty, Sumana, Peevey, Joseph +8 more·2007·Proceedings of the National Academy of Sciences

Abstract

Circadian rhythms and the genes that make up the molecular clock have long been implicated in bipolar disorder. Genetic evidence in bipolar patients suggests that the central transcriptional activator of molecular rhythms, CLOCK, may be particularly important. However, the exact role of this gene in the development of this disorder remains unclear. Here we show that mice carrying a mutation in the Clock gene display an overall behavioral profile that is strikingly similar to human mania, including hyperactivity, decreased sleep, lowered depression-like behavior, lower anxiety, and an increase in the reward value for cocaine, sucrose, and medial forebrain bundle stimulation. Chronic administration of the mood stabilizer lithium returns many of these behavioral responses to wild-type levels. In addition, the Clock mutant mice have an increase in dopaminergic activity in the ventral tegmental area, and their behavioral abnormalities are rescued by expressing a functional CLOCK protein via viral-mediated gene transfer specifically in the ventral tegmental area. These findings establish the Clock mutant mice as a previously unrecognized model of human mania and reveal an important role for CLOCK in the dopaminergic system in regulating behavior and mood.

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Crossref · 10.1073/pnas.0609625104

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  • The ClockΔ19 mutant mouse, a well-established model of bipolar mania, has a fundamentally disrupted molecular circadian clock, and restoration of a functional molecular circadian clock to the VTA ameliorates the mania-like behaviors.

    “One of the most well-established models of bipolar mania, the ClockΔ19 mutant mouse, has a fundamentally disrupted molecular circadian clock and restoration of a functional molecular circadian clock to the VTA, likely restoring dopaminergic regulation, ameliorates the mania-like behaviors101.”

    From Circadian rhythm disruption and mental health (2020) · cites this paper as [101]

    The Results (page not available) describe a dominant-negative Clock mutation and report that expressing functional CLOCK protein in the VTA normalized hyperactivity and brought anxiety near wild-type levels. The Discussion calls the mice a bona fide model of human mania. The paper does not show that gene transfer restored a functional molecular circadian clock in the VTA; it tested CLOCK expression and those behavioral outcomes. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Mice with a Δ19 mutation in the Clock gene display reduced anxiety-like behavior and are less fearful of aversive stimuli than wild-type mice.

    “Mice with a Δ19 mutation in the Clock gene display reduced anxiety-like behavior and are less fearful of aversive stimuli than wild-type mice101.”

    From Circadian rhythm disruption and mental health (2020) · cites this paper as [101]

  • Mice harbouring a mutation in Clock display a behavioural repertoire similar to human mania, and CLOCK specifically in the ventral tegmental area is important for these behaviours via modulation of dopamine cell firing.

    “This study demonstrates mice harbouring a mutation in Clock display a behavioural repertoire similar to human mania and provides evidence for CLOCK specifically in the ventral tegmental area to be important for these behaviours via modulation of dopamine cell firing.”
  • Disruption of one of the core proteins in the master circadian clock can trigger mania-like behaviors.

    “Recent studies show that disruption of one of the core proteins in the master circadian clock can trigger mania-like behaviors (Roybal et al., 2007)”
  • Mice with a mutation in the Clock gene have a behavioral profile that is strikingly similar to human mania.

    “Mice with a mutation in the Clock gene have a behavioral profile that is strikingly similar to human mania (McClung et al., 2005; Roybal et al., 2007).”

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Research works printed but not linked: 2

  1. [3]Boivin DB. J Psychiatry Neurosci. 2000;25:446–458. [PMC free article] [PubMed] [Google Scholar]
  2. [5]Saeed SA, Bruce TJ. Am Fam Physician. 1998;57:1340–1346. 1351–1352. [PubMed] [Google Scholar]

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Authors
Roybal, K., Theobold, D., Graham, A., DiNieri, J. A., Russo, S. J., Krishnan, V., Chakravarty, S., Peevey, J., Oehrlein, N., Birnbaum, S., Vitaterna, M. H., Orsulak, P., Takahashi, J. S., Nestler, E. J., Carlezon, W. A., & McClung, C. A.
Affiliations
  • The University of Texas Southwestern Medical Center (US)
  • Harvard University (US)
  • RTX (United States) (US)
  • Northwestern University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2007-04-10
Volume
104
Issue
15
Pages
6406-6411
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2059115988
Cited by
803
References
44
Citations by year
2026: 18 · 2025: 32 · 2024: 29 · 2023: 25 · 2022: 31 · 2021: 32 · 2020: 25 · 2019: 31 · 2018: 40 · 2017: 42 · 2016: 54 · 2015: 45 · 2014: 58 · 2013: 62 · 2012: 51
FWCI
22.52
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • McKnight Foundation
  • National Institutes of Health
  • National Institute of Mental Health
  • National Institute on Drug Abuse
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
clock genes, mania, bipolar disorder, circadian rhythm, Clock mutant mice, hyperactivity, sleep deprivation, depression-like behavior, anxiety, cocaine reward, sucrose reward, medial forebrain bundle stimulation, lithium, mood stabilizers, ventral tegmental area, dopaminergic activity, animal model of mania
MeSH terms
Glycogen Synthase Kinase 3 beta, Analysis of Variance, Animals, Behavioral Symptoms, Bipolar Disorder, Circadian Rhythm, Electric Stimulation, Gene Expression Regulation, Immunohistochemistry, Lithium, Locomotion, Mutation, Genetic Therapy, Trans-Activators, Mutagenesis, Ventral Tegmental Area, Gene Transfer Techniques, Lithium Compounds, Glycogen Synthase Kinase 3, Mice, CLOCK Proteins

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