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Updated: May 21, 2026

Studying Chronic Exposure of Mice to Ultraviolet B Radiation
Published on: August 19, 2025
Effect of UVB irradiation on microRNA expression in mouse epidermis
Bing-Rong Zhou1, Yang Xu, Dan Luo
1Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R. China.
Abstract:
The aim of this study was to assess the effects of UVB irradiation on miRNA expression in the mouse epidermis. We determined miRNA expression profiles in the epidermis of UVB irradiated mice and untreated mice, and conducted TargetScan and Gene Ontology analyses to predict miRNA targets. Three miRNAs were downregulated and three were upregulated in the epidermis of UVB irradiated mice compared with untreated mice, and were predicted to be associated with photocarcinogenesis, hypomethylation and apoptosis. miRNAs are potentially involved in the pathogenesis of photodamage, and may aid in the treatment and prevention of UVB-induced dermatoses.
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