1. DNA damage and somatic mutations in mammalian cells after irradiation with a nail polish dryer
- Author
-
Zhivagui, Maria, Hoda, Areebah, Valenzuela, Noelia, Yeh, Yi-Yu, Dai, Jason, He, Yudou, Nandi, Shuvro P, Otlu, Burcak, Van Houten, Bennett, and Alexandrov, Ludmil B
- Subjects
Biological Sciences ,Genetics ,Cancer ,Climate-Related Exposures and Conditions ,Animals ,Humans ,Mice ,DNA Damage ,Fibroblasts ,Keratinocytes ,Mammals ,Mutation ,Reactive Oxygen Species ,Ultraviolet Rays ,Nails - Abstract
Ultraviolet A light is commonly emitted by UV-nail polish dryers with recent reports suggesting that long-term use may increase the risk for developing skin cancer. However, no experimental evaluation has been conducted to reveal the effect of radiation emitted by UV-nail polish dryers on mammalian cells. Here, we show that irradiation by a UV-nail polish dryer causes high levels of reactive oxygen species, consistent with 8-oxo-7,8-dihydroguanine damage and mitochondrial dysfunction. Analysis of somatic mutations reveals a dose-dependent increase of C:G>A:T substitutions in irradiated samples with mutagenic patterns similar to mutational signatures previously attributed to reactive oxygen species. In summary, this study demonstrates that radiation emitted by UV-nail polish dryers can both damage DNA and permanently engrave mutations on the genomes of primary mouse embryonic fibroblasts, human foreskin fibroblasts, and human epidermal keratinocytes.
- Published
- 2023