» Articles » PMID: 20195522

CRY2 is Associated with Depression

Overview
Journal PLoS One
Date 2010 Mar 3
PMID 20195522
Citations 66
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Abnormalities in the circadian clockwork often characterize patients with major depressive and bipolar disorders. Circadian clock genes are targets of interest in these patients. CRY2 is a circadian gene that participates in regulation of the evening oscillator. This is of interest in mood disorders where a lack of switch from evening to morning oscillators has been postulated.

Principal Findings: We observed a marked diurnal variation in human CRY2 mRNA levels from peripheral blood mononuclear cells and a significant up-regulation (P = 0.020) following one-night total sleep deprivation, a known antidepressant. In depressed bipolar patients, levels of CRY2 mRNA were decreased (P = 0.029) and a complete lack of increase was observed following sleep deprivation. To investigate a possible genetic contribution, we undertook SNP genotyping of the CRY2 gene in two independent population-based samples from Sweden (118 cases and 1011 controls) and Finland (86 cases and 1096 controls). The CRY2 gene was significantly associated with winter depression in both samples (haplotype analysis in Swedish and Finnish samples: OR = 1.8, P = 0.0059 and OR = 1.8, P = 0.00044, respectively).

Conclusions: We propose that a CRY2 locus is associated with vulnerability for depression, and that mechanisms of action involve dysregulation of CRY2 expression.

Citing Articles

Adolescent circadian rhythm disruption increases reward and risk-taking.

DePoy L, Vadnie C, Petersen K, Scott M, Zong W, Yin R Front Neurosci. 2024; 18:1478508.

PMID: 39737435 PMC: 11683121. DOI: 10.3389/fnins.2024.1478508.


Circadian Influences on Brain Lipid Metabolism and Neurodegenerative Diseases.

Hussain Y, Dar M, Pan X Metabolites. 2024; 14(12).

PMID: 39728504 PMC: 11677446. DOI: 10.3390/metabo14120723.


Circadian Rhythm Genes and Their Association with Sleep and Sleep Restriction.

Sochal M, Ditmer M, Tarasiuk-Zawadzka A, Binienda A, Turkiewicz S, Wysokinski A Int J Mol Sci. 2024; 25(19).

PMID: 39408776 PMC: 11476465. DOI: 10.3390/ijms251910445.


Cell-type and sex-specific rhythmic gene expression in the nucleus accumbens.

DePoy L, Petersen K, Zong W, Ketchesin K, Matthaei R, Yin R Mol Psychiatry. 2024; 29(10):3117-3127.

PMID: 38678086 PMC: 11449664. DOI: 10.1038/s41380-024-02569-7.


Early growth response 1 (EGR1) is downregulated in peripheral blood from patients with major psychiatric disorders.

Bristot G, Feiten J, Pfaffenseller B, Hizo G, Possebon G, Valiati F Trends Psychiatry Psychother. 2024; .

PMID: 38219212 PMC: 11815351. DOI: 10.47626/2237-6089-2023-0749.


References
1.
Vandesompele J, De Preter K, Pattyn F, Poppe B, Van Roy N, De Paepe A . Accurate normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes. Genome Biol. 2002; 3(7):RESEARCH0034. PMC: 126239. DOI: 10.1186/gb-2002-3-7-research0034. View

2.
Kume K, Zylka M, Sriram S, Shearman L, Weaver D, Jin X . mCRY1 and mCRY2 are essential components of the negative limb of the circadian clock feedback loop. Cell. 1999; 98(2):193-205. DOI: 10.1016/s0092-8674(00)81014-4. View

3.
Cameron M, Barnard A, Hut R, Bonnefont X, van der Horst G, Hankins M . Electroretinography of wild-type and Cry mutant mice reveals circadian tuning of photopic and mesopic retinal responses. J Biol Rhythms. 2008; 23(6):489-501. DOI: 10.1177/0748730408325874. View

4.
Lundberg I, Damstrom Thakker K, Hallstrom T, Forsell Y . Determinants of non-participation, and the effects of non-participation on potential cause-effect relationships, in the PART study on mental disorders. Soc Psychiatry Psychiatr Epidemiol. 2005; 40(6):475-83. DOI: 10.1007/s00127-005-0911-4. View

5.
Srinivasan V, Pandi-Perumal S, Trakht I, Spence D, Hardeland R, Poeggeler B . Pathophysiology of depression: role of sleep and the melatonergic system. Psychiatry Res. 2009; 165(3):201-14. DOI: 10.1016/j.psychres.2007.11.020. View