Related Experiment Video
Updated: Jun 2, 2026
10:38
Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters
Published on: September 27, 2012
Understanding systems-level properties: timely stories from the study of clocks
John B Hogenesch1, Hiroki R Ueda
1Department of Pharmacology, Penn Center for Bioinformatics, Penn Genome Frontiers Institute, Institute for Translational Medicine and Therapeutics, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. hogenesc@mail.med.upenn.edu
Nature Reviews. Genetics
|May 11, 2011
Summary
Systems biology is revealing complex properties of the circadian clock, like robustness and temperature compensation. This approach uses genetic, imaging, synthetic biology, and modeling techniques across diverse organisms.
Area of Science:
- Biology
- Systems Biology
- Chronobiology
Background:
- Reductionist approaches have long dominated biological research.
- A shift towards studying complex biological systems is emerging.
- The circadian clock is a complex biological system with critical functions.
Purpose of the Study:
- To illustrate the application of systems biology in understanding the circadian clock.
- To explore complex systems-level properties of the circadian clock, including robustness, periodicity, and temperature compensation.
- To demonstrate the utility of systems biology strategies for other complex biological problems.
Main Methods:
- Genetic perturbations to analyze clock gene functions.
- Kinetic luminescence imaging for real-time clock dynamics.
- Synthetic biology for constructing and testing clock components.
- Mathematical modeling to simulate and predict clock behavior.
Main Results:
- Systems biology successfully elucidates complex circadian clock properties.
- Robustness, periodicity, and temperature compensation are key systems-level features identified.
- Diverse organisms (mammals, fungi, bacteria) exhibit these properties, studied via systems biology.
- Integration of multiple techniques provides a comprehensive understanding.
Conclusions:
- Systems biology offers powerful tools to unravel complex biological systems like the circadian clock.
- The methodologies applied to circadian clocks can be adapted for other complex biological research areas.
- Understanding complex systems is crucial for advancing biological sciences.
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