Deregulated Expression of Circadian Clock Genes in Gastric Cancer
Overview
Authors
Affiliations
Background: Gastric cancer (GC), an aggressive malignant tumor of the alimentary tract, is a leading cause of cancer-related death. Circadian rhythm exhibits a 24-hour variation in physiological processes and behavior, such as hormone levels, metabolism, gene expression, sleep and wakefulness, and appetite. Disruption of circadian rhythm has been associated with various cancers, including chronic myeloid leukemia, head and neck squamous cell carcinoma, hepatocellular carcinoma, endometrial carcinoma, and breast cancer. However, the expression of circadian clock genes in GC remains unexplored.
Methods: In this study, the expression profiles of eight circadian clock genes (PER1, PER2, PER3, CRY1, CRY2, CKIϵ, CLOCK, and BMAL1) of cancerous and noncancerous tissues from 29 GC patients were investigated using real-time quantitative reverse-transcriptase polymerase chain reaction and validated through immunohistochemical analysis.
Results: We found that PER2 was significantly up-regulated in cancer tissues (p < 0.005). Up-regulated CRY1 expression was significantly correlated with more advanced stages (stage III and IV) (p < 0.05).
Conclusions: Our results suggest deregulated expressions of circadian clock genes exist in GC and circadian rhythm disturbance may be associated with the development of GC.
Environmental factors inducing gastric cancer: insights into risk and prevention strategies.
He P, Li X, Zou D, Tang F, Chen H, Li Y Discov Oncol. 2025; 16(1):25.
PMID: 39786603 PMC: 11717776. DOI: 10.1007/s12672-025-01771-5.
The Circadian Clock as a Potential Biomarker and Therapeutic Target in Gastrointestinal Cancers.
Barati S, Saffar H, Mehrabadi S, Avan A Curr Pharm Des. 2024; 30(23):1804-1811.
PMID: 38798218 DOI: 10.2174/0113816128302762240515054444.
Daytime napping and the risk of gastric cancer: the JACC Study.
Yan F, Arafa A, Eshak E, Shirai K, Tamakoshi A, Iso H Cancer Causes Control. 2024; 35(7):1011-1016.
PMID: 38498221 DOI: 10.1007/s10552-024-01858-4.
Khezri M, Hsueh H, Mohammadipanah S, Khalili Fard J, Ghasemnejad-Berenji M Cell Prolif. 2024; 57(7):e13608.
PMID: 38336976 PMC: 11216939. DOI: 10.1111/cpr.13608.
Lamnis L, Christofi C, Stark A, Palm H, Roemer K, Vogt T Nutrients. 2024; 16(2).
PMID: 38257148 PMC: 10820546. DOI: 10.3390/nu16020254.