期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/ijms22116112
关键词
DNA repair; circadian clock; skin biology; skin cancer; genotoxicity; cell cycle; UV radiation
资金
- Wright State University
- Ohio Cancer Research [5020]
Research shows that the global incidence of skin cancer is rapidly increasing, primarily due to exposure to ultraviolet sunlight. Recent studies have found a close relationship between the timing of UV exposure, DNA repair, skin cancer development, and the body's circadian clock.
Skin cancers are growing in incidence worldwide and are primarily caused by exposures to ultraviolet (UV) wavelengths of sunlight. UV radiation induces the formation of photoproducts and other lesions in DNA that if not removed by DNA repair may lead to mutagenesis and carcinogenesis. Though the factors that cause skin carcinogenesis are reasonably well understood, studies over the past 10-15 years have linked the timing of UV exposure to DNA repair and skin carcinogenesis and implicate a role for the body's circadian clock in UV response and disease risk. Here we review what is known about the skin circadian clock, how it affects various aspects of skin physiology, and the factors that affect circadian rhythms in the skin. Furthermore, the molecular understanding of the circadian clock has led to the development of small molecules that target clock proteins; thus, we discuss the potential use of such compounds for manipulating circadian clock-controlled processes in the skin to modulate responses to UV radiation and mitigate cancer risk.
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