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KMID : 0606920160240030305
Biomolecules & Therapeutics
2016 Volume.24 No. 3 p.305 ~ p.311
Mitochondria-Targeted Vitamin E Protects Skin from UVB-Irradiation
Kim Won-Serk

Kim Ik-Yong
Kim Wang-Kyun
Choi Ju-Yeon
Kim Doo-Yeong
Moon Sung-Guk
Min Hyung-Keun
Song Min-Kyu
Sung Jong-Hyuk
Abstract
Mitochondria-targeted vitamin E (MVE) is designed to accumulate within mitochondria and is applied to decrease mitochondrial oxidative damage. However, the protective effects of MVE in skin cells have not been identified. We investigated the protective effect of MVE against UVB in dermal fibroblasts and immortalized human keratinocyte cell line (HaCaT). In addition, we studied the wound-healing effect of MVE in animal models. We found that MVE increased the proliferation and survival of fibroblasts at low concentration (i.e., nM ranges). In addition, MVE increased collagen production and downregulated matrix metalloproteinase1. MVE also increased the proliferation and survival of HaCaT cells. UVB increased reactive oxygen species (ROS) production in fibroblasts and HaCaT cells, while MVE decreased ROS production at low concentration. In an animal experiment, MVE accelerated wound healing from laser-induced skin damage. These results collectively suggest that low dose MVE protects skin from UVB irradiation. Therefore, MVE can be developed as a cosmetic raw material.
KEYWORD
Mitochondria-Targeted vitamin E, UVB protection, Fibroblast, HaCaT, Collagen
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