Related Experiment Video
Updated: Oct 23, 2025

Recording and Analysis of Circadian Rhythms in Running-wheel Activity in Rodents
Published on: January 24, 2013
Roles of NPAS2 in circadian rhythm and disease
L U Peng1, Gaigai Bai1, Yingxin Pang1
1Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan 250012, China.
Abstract:
NPAS2, a circadian rhythm gene encoding the neuronal PAS domain protein 2 (NPAS2), has received widespread attention because of its complex functions in cells and diverse roles in disease progression, especially tumorigenesis. NPAS2 binds with DNA at E-box sequences and forms heterodimers with another circadian protein, brain and muscle ARNT-like protein 1 (BMAL1). Nucleotide variations of the NPAS2 gene have been shown to influence the overall survival and risk of death of cancer patients, and differential expression of NPAS2 has been linked to patient outcomes in breast cancer, lung cancer, non-Hodgkin's lymphoma, and other diseases. Here, we review the latest advances in our understanding of NPAS2 with the aim of drawing attention to its potential clinical applications and prospects.
Insights
The circadian rhythm gene NPAS2 plays a key role in tumorigenesis. Variations in NPAS2 impact cancer patient survival and outcomes, highlighting its clinical potential.
Area of Science:
- Genetics and Molecular Biology
- Chronobiology
- Cancer Research
Background:
- NPAS2, a circadian rhythm gene, encodes neuronal PAS domain protein 2.
- It interacts with DNA at E-box sequences and heterodimerizes with BMAL1.
- NPAS2 is implicated in various diseases, particularly tumorigenesis.
Purpose of the Study:
- To review recent advances in understanding NPAS2.
- To highlight its potential clinical applications and future prospects in disease, especially cancer.
Main Methods:
- Literature review of NPAS2 research.
- Analysis of NPAS2's role in cellular functions and disease progression.
- Examination of NPAS2's association with patient survival and outcomes.
Main Results:
- NPAS2 variations affect overall survival and mortality risk in cancer patients.
- Differential NPAS2 expression correlates with patient outcomes in breast cancer, lung cancer, and non-Hodgkin's lymphoma.
- NPAS2 exhibits complex cellular functions relevant to disease.
Conclusions:
- NPAS2 is a significant factor in cancer development and progression.
- Understanding NPAS2's role offers potential for novel clinical strategies.
- Further research into NPAS2 is warranted for therapeutic development.
More Related Videos
Related Concept Videos
Circadian Rhythms and Gene Regulation
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Narcolepsy
Biological Clocks and Seasonal Responses
Neural Regulation

