Topical application of a cryptochrome and REV-ERB inhibitor on human skin increases epidermal XPA and WEE1 expression
Cvammen, W.;Kemp, M.
Show abstract
The time of day of UV exposure impacts both erythema and cancer development. To investigate whether UV-relevant clock-controlled gene expression can be modulated pharmacologically, we treated human skin explants with a combination of a cryptochoursome inhibitor and REV-ERB antagonist and then examined changes in gene expression of a limited number of core clock and clock-regulated genes. mRNA levels of both the DNA repair factor XPA and cell cycle checkpoint kinase WEE1 were found to be significantly increased by treatment. This pilot study suggests that clock-controlled gene expression can be altered pharmacologically to possibly alter skin responses to UV radiation.
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