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Protective Effects Of Novel Derivatives Of Vitamin D3 And Lumisterol Against Uvb-Induced Damage In Human Keratinocytes Involve Activation Of Nrf2 And P53 Defense Mechanisms, Anyamanee Chaiprasongsuk, Zorica Janjetovic, Tae-Kang Kim, Stuart G. Jarrett, John A. D'Orazio, Michael F. Holick, Edith K. Y. Tang, Robert C. Tuckey, Uraiwan Panich, Wei Li, Andrzej T. Slominski
Protective Effects Of Novel Derivatives Of Vitamin D3 And Lumisterol Against Uvb-Induced Damage In Human Keratinocytes Involve Activation Of Nrf2 And P53 Defense Mechanisms, Anyamanee Chaiprasongsuk, Zorica Janjetovic, Tae-Kang Kim, Stuart G. Jarrett, John A. D'Orazio, Michael F. Holick, Edith K. Y. Tang, Robert C. Tuckey, Uraiwan Panich, Wei Li, Andrzej T. Slominski
Toxicology and Cancer Biology Faculty Publications
We tested whether novel CYP11A1-derived vitamin D3- and lumisterol-hydroxyderivatives, including 1,25(OH)2D3, 20(OH)D3, 1,20(OH)2D3, 20,23(OH)2D3, 1,20,23(OH)3D3, lumisterol, 20(OH)L3, 22(OH)L3, 20,22(OH)2L3, and 24(OH)L3, can protect against UVB-induced damage in human epidermal keratinocytes. Cells were treated with above compounds for 24 h, then subjected to UVB irradiation at UVB doses of 25, 50, 75, or 200 mJ/cm2, and then examined for oxidant formation, proliferation, DNA damage, and the expression of genes …