» Articles » PMID: 27014564

Chromatin Dynamics of Circadian Transcription

Overview
Specialty Biochemistry
Date 2016 Mar 26
PMID 27014564
Citations 6
Authors
Affiliations
Soon will be listed here.
Abstract

The molecular circadian clock orchestrates the daily cyclical expression of thousands of genes. Disruption of this transcriptional program leads to a variety of pathologies, including insomnia, depression and metabolic disorders. Circadian rhythms in gene expression rely on specific chromatin transitions which are ultimately coordinated by the molecular clock. As a consequence, a highly plastic and dynamic circadian epigenome can be delineated across different tissues and cell types. Intriguingly, genome topology appears to coordinate cyclic transcription at circadian interactomes, in which circadian genes are in physical contact within the cell nucleus in a time-specific manner. Moreover, the clock machinery shows functional interplays with key metabolic regulators, thereby connecting the circadian epigenome to cellular metabolism. Unraveling the molecular aspects of such interplays is likely to reveal new therapeutic strategies towards the treatment of metabolic disorders.

Citing Articles

Spatial Organization of the Gene Regulatory Program: An Information Theoretical Approach to Breast Cancer Transcriptomics.

Anda-Jauregui G, Espinal-Enriquez J, Hernandez-Lemus E Entropy (Basel). 2020; 21(2).

PMID: 33266910 PMC: 7514677. DOI: 10.3390/e21020195.


The Circadian Clock as an Essential Molecular Link Between Host Physiology and Microorganisms.

Murakami M, Tognini P Front Cell Infect Microbiol. 2020; 9:469.

PMID: 32039048 PMC: 6987142. DOI: 10.3389/fcimb.2019.00469.


The social evolution of sleep: sex differences, intragenomic conflicts and clinical pathologies.

Faria G, Varela S, Gardner A Proc Biol Sci. 2019; 286(1894):20182188.

PMID: 30963856 PMC: 6367171. DOI: 10.1098/rspb.2018.2188.


Rosiglitazone reverses high fat diet-induced changes in BMAL1 function in muscle, fat, and liver tissue in mice.

Ribas-Latre A, Fekry B, Kwok C, Baumgartner C, Shivshankar S, Sun K Int J Obes (Lond). 2018; 43(3):567-580.

PMID: 29795456 PMC: 6351224. DOI: 10.1038/s41366-018-0090-5.


Circadian Metabolomics in Time and Space.

Dyar K, Eckel-Mahan K Front Neurosci. 2017; 11:369.

PMID: 28744188 PMC: 5504240. DOI: 10.3389/fnins.2017.00369.


References
1.
Le Martelot G, Canella D, Symul L, Migliavacca E, Gilardi F, Liechti R . Genome-wide RNA polymerase II profiles and RNA accumulation reveal kinetics of transcription and associated epigenetic changes during diurnal cycles. PLoS Biol. 2012; 10(11):e1001442. PMC: 3507959. DOI: 10.1371/journal.pbio.1001442. View

2.
Schmalen I, Reischl S, Wallach T, Klemz R, Grudziecki A, Prabu J . Interaction of circadian clock proteins CRY1 and PER2 is modulated by zinc binding and disulfide bond formation. Cell. 2014; 157(5):1203-15. DOI: 10.1016/j.cell.2014.03.057. View

3.
Hatori M, Vollmers C, Zarrinpar A, DiTacchio L, Bushong E, Gill S . Time-restricted feeding without reducing caloric intake prevents metabolic diseases in mice fed a high-fat diet. Cell Metab. 2012; 15(6):848-60. PMC: 3491655. DOI: 10.1016/j.cmet.2012.04.019. View

4.
Ramsey K, Yoshino J, Brace C, Abrassart D, Kobayashi Y, Marcheva B . Circadian clock feedback cycle through NAMPT-mediated NAD+ biosynthesis. Science. 2009; 324(5927):651-4. PMC: 2738420. DOI: 10.1126/science.1171641. View

5.
Valekunja U, Edgar R, Oklejewicz M, van der Horst G, ONeill J, Tamanini F . Histone methyltransferase MLL3 contributes to genome-scale circadian transcription. Proc Natl Acad Sci U S A. 2013; 110(4):1554-9. PMC: 3557088. DOI: 10.1073/pnas.1214168110. View