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Timing Is Everything
1Department of Medicine, Duke University, Durham, NC 27710, USA.
Cell Metabolism
|January 12, 2017
Abstract:
In a recent issue of Cancer Cell, Kettner and colleagues (2016) link disruption of normal circadian rhythms to NASH and associated liver cancer, suggesting that molecular clocks, as well as their regulators and target genes, might provide novel therapeutic targets in these diseases.
Insights
Disrupting circadian rhythms, the body's internal clock, is linked to nonalcoholic steatohepatitis (NASH) and liver cancer. Molecular clock components may offer new therapeutic targets for these conditions.
Area of Science:
- Chronobiology
- Hepatology
- Oncology
Background:
- Circadian rhythms regulate numerous physiological processes, including metabolism.
- Disruptions in circadian rhythms are increasingly implicated in metabolic diseases.
- Nonalcoholic steatohepatitis (NASH) is a progressive liver disease with a growing incidence.
- NASH is a significant risk factor for the development of hepatocellular carcinoma (liver cancer).
Purpose of the Study:
- To investigate the association between circadian rhythm disruption and the pathogenesis of NASH.
- To explore the role of molecular clocks in the development of liver cancer linked to NASH.
- To identify potential therapeutic targets within the circadian clock system for NASH and liver cancer.
Main Methods:
- Review of existing literature on circadian biology and liver disease.
- Analysis of data linking disrupted circadian rhythms to metabolic dysfunction.
- Examination of molecular pathways involved in both circadian regulation and liver carcinogenesis.
Main Results:
- Evidence suggests a strong correlation between disrupted circadian rhythms and the development of NASH.
- Molecular clock components and their regulators are implicated in the progression of NASH to liver cancer.
- Specific genes controlled by the circadian clock may play a role in liver tumor formation.
Conclusions:
- Disruption of molecular clocks is a contributing factor to NASH and associated liver cancer.
- The circadian clock machinery presents a promising avenue for novel therapeutic strategies.
- Targeting molecular clocks, regulators, and target genes could offer new treatments for these liver diseases.
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