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Updated: Oct 27, 2025
10:38
Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters
Published on: September 27, 2012
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Circadian Clock and Liver Cancer
María Crespo1, Magdalena Leiva1, Guadalupe Sabio1
1Centro Nacional de Investigaciones Cardiovasculares Carlos III, 28029 Madrid, Spain.
Cancers
|July 24, 2021
Summary
Disrupting the body's internal clock (circadian rhythm) can lead to liver disease and liver cancer (hepatocellular carcinoma). Understanding the liver clock offers new targets for preventing and treating this cancer.
Area of Science:
- Molecular Biology
- Chronobiology
- Oncology
Background:
- Mammalian circadian clocks regulate essential homeostatic processes via internal molecular mechanisms.
- Disruptions in circadian rhythms are linked to metabolic diseases and increased cancer risk, particularly liver cancer.
- Hepatic physiology exhibits daily rhythms controlled by clock genes, influencing metabolic pathways.
Purpose of the Study:
- To review the liver clock's role in metabolic dysregulation and oncogenesis leading to hepatocellular carcinoma (HCC).
- To explore potential therapeutic targets for HCC prevention and management based on liver clock function.
Main Methods:
- Literature review focusing on circadian rhythms, liver metabolism, and hepatocarcinogenesis.
- Analysis of molecular mechanisms linking clock gene function to metabolic disorders and cancer pathways.
- Synthesis of current research on HCC development influenced by circadian disruption.
Main Results:
- Alterations in the liver clock are associated with metabolic disorders like non-alcoholic fatty liver disease (NAFLD) and impaired glucose metabolism.
- These metabolic disturbances can activate oncogenic pathways, promoting spontaneous HCC development.
- Clock gene dysregulation is a critical factor in the transition from metabolic dysfunction to liver cancer.
Conclusions:
- The liver clock plays a crucial role in maintaining metabolic homeostasis and preventing oncogenesis.
- Dysfunctional liver clocks contribute significantly to the pathogenesis of metabolic diseases and HCC.
- Targeting the liver clock presents a promising strategy for novel HCC prevention and treatment approaches.
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