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KMID : 0545120160260040775
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Journal of Microbiology and Biotechnology
2016 Volume.26 No. 4 p.775 ~ p.783
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Extract of Ettlia sp. YC001 Exerts Photoprotective Effects against UVB Irradiation in Normal Human Dermal Fibroblasts
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Lee Jeong-Ju
An Sung-Kwan
Kim Ki-Bbeum
Heo Jin-A
Cho Dae-Hyun
Oh Hee-Mock
Kim Hee-Sik
Bae Seung-Hee
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Abstract
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The identification of novel reagents that exert a biological ultraviolet (UV)-protective effect in skin cells represents an important strategy for preventing UV-induced skin aging. To this end, we investigated the potential protective effects of Ettlia sp. YC001 extracts against UV-induced cellular damage in normal human dermal fibroblasts (NHDFs). We generated four different extracts from Ettlia sp. YC001, and found that they exhibit low cytotoxicity in NHDFs. The ethyl acetate extract of Ettlia sp. YC001 markedly decreased UVB-induced cytotoxicity. Additionally, the ethyl acetate extract significantly inhibited the production of hydrogen peroxide-induced reactive oxygen species. Moreover, it inhibited UVB-induced thymine dimers, as confirmed by luciferase assay and thymine dimer dot-blot assay. Thus, the study findings suggest Ettlia sp. YC001 extract as a novel photoprotective reagent on UVB-induced cell dysfunctions in NHDFs.
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KEYWORD
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Ettlia sp. YC001, dermal fibroblasts, ultraviolet B, photoprotection, photoaging, skin
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