Cited by 94Circadian rhythm and melatoninEpigenetics and DNA MethylationSleep and Wakefulness Research

Epigenetic control and the circadian clock: Linking metabolism to neuronal responses

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Orozco-Solis, R., Sassone-Corsi, P.·2014·Neuroscience

Abstract

Experimental and epidemiological evidence reveal the profound influence that industrialized modern society has imposed on human social habits and physiology during the past 50 years. This drastic change in life-style is thought to be one of the main causes of modern diseases including obesity, type 2 diabetes, mental illness such as depression, sleep disorders, and certain types of cancer. These disorders have been associated to disruption of the circadian clock, an intrinsic time-keeper molecular system present in virtually all cells and tissues. The circadian clock is a key element in homeostatic regulation by controlling a large array of genes implicated in cellular metabolism. Importantly, intimate links between epigenetic regulation and the circadian clock exist and are likely to prominently contribute to the plasticity of the response to the environment. In this review, we summarize some experimental and epidemiological evidence showing how environmental factors such as stress, drugs of abuse and changes in circadian habits, interact through different brain areas to modulate the endogenous clock. Furthermore we point out the pivotal role of the deacetylase silent mating-type information regulation 2 homolog 1 (SIRT1) as a molecular effector of the environment in shaping the circadian epigenetic landscape.

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Crossref · 10.1016/j.neuroscience.2014.01.043

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  • The circadian system is the major regulator of almost every aspect of human health and metabolism.

    “The circadian system is the major regulator of almost every aspect of human health and metabolism.”
  • Light is the main cue influencing the SCN master circadian clock, turning on or off genes that control the individual's internal clock function.

    “Light is the main cue influencing the SCN master circadian clock, turning on or off genes that control the individual's internal clock function.”
  • The master clock regulates the body's metabolism through controlling body functions and synchronizing peripheral clocks in almost all cells, including heart, liver, muscle and adipose tissue.

    “This master clock regulates the body's metabolism through controlling body functions, and synchronizing peripheral clocks in almost all cells in the body, including the body's key tissues such as the heart, liver, muscle and adipose tissue 3, 4, 5, 6.”
  • Temperature change and nutritional intake mainly affect peripheral clocks.

    “Other environmental factors include temperature change and nutritional intake, which mainly affect peripheral clocks 4, 7.”
  • Recent developments in epigenetics may provide the basis for a better understanding of the pathophysiological mechanisms underlying the Metabolic Syndrome.

    “Recent developments in epigenetics may also provide the basis for a better understanding of the pathophysiological mechanisms underlying what to date we have called the Metabolic Syndrome 4, 47.”

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Authors
Orozco-Solis, R., & Sassone-Corsi, P.
Venue
Neuroscience
Publisher
Elsevier BV
Published
2014-04
Volume
264
Pages
76-87
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2041979789
Cited by
94
References
134
Citations by year
2026: 3 · 2025: 7 · 2024: 11 · 2023: 9 · 2022: 5 · 2021: 4 · 2020: 8 · 2019: 5 · 2018: 4 · 2017: 5 · 2016: 12 · 2015: 12 · 2014: 9
FWCI
1.42
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute on Drug Abuse (R21DA035600)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
circadian clock, epigenetic regulation, SIRT1, circadian metabolism, environmental stress, drugs of abuse, obesity, type 2 diabetes, depression, sleep disorders, cancer, neuroplasticity, homeostatic regulation
MeSH terms
Animals, Brain, Humans, Male, Stress, Psychological, Epigenesis, Genetic, Sirtuin 1, Circadian Clocks

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