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Inhibitory Effect of Ophioglossum vulgatum on Free Radical and MMP Expression in UV-irradiated Human Dermal Fibroblasts  

Kim, Jin-Hwa (R&D center, Hanbul Cosmetics Co. Ltd.)
Oh, Jung-Young (R&D center, Hanbul Cosmetics Co. Ltd.)
Lee, Geun-Soo (R&D center, Hanbul Cosmetics Co. Ltd.)
Zhang, Yong-He (Department Of Pharmacology, Peking University, School of Basic Medical Science)
Pyo, Hyeong-Bae (R&D center, Hanbul Cosmetics Co. Ltd.)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.35, no.4, 2009 , pp. 287-292 More about this Journal
Abstract
Human skin is constantly exposed to environmental irritants such as smoke, chemicals and ultraviolet (UV). Free radicals and reactive oxygen species (ROS) caused by these environmental irritants play critical roles in cellular damage. In this study, to investigate the skin cell protective effect of Ophioglossum vulgatum extract, we investigated its effects on intercellular antioxidative activity and UVA-induced MMP expression in human dermal fibroblasts (HDFs). The dried O. vulgatum was extracted in a mixture of ethanol and water (1 : 1) for 24 h at room temperature. The extract was filtered and concentrated in vacuo and lyophilized. For testing intracellular ROS scavenging activity the cultured HDFs were analyzed by increase in DCF fluorescence upon exposure to UVB $20\;mJ/cm^2$. After treatment of O. vulgatum extracts, intracellular ROS levels were measured by luminescence spectrophotometer. Enzyme linked immuno sorbent assay (ELISA), and RT-PCR techniques were used for evaluating the effects of O. vulgatumon on MMP protein and mRNA expression in UVA irradiated HDFs. O. vulgatum extract was found to have ROS scavenging activity with the $IC_{50}$ values of $18.2\;{\mu}g/mL$ against superoxide radicals in the xanthine/xanthine oxidase system. After treatment of O. vulgatum extracts, the oxidation of CM-DCFDA was inhibited effectively and O. vulgatum extracts showed a potent free radical scavenging activity by 30.4 % at $100\;{\mu}g/mL$ in UVB-irradiated HDFs. UVA induced MMP protein expression was reduced 37.7 % by treatment with O. vulgatum extract, and MMP-1 mRNA expression was reduced in a dose-dependent manner. Taken together, these results suggest that O. vulgatum extract prevents the skin cell damage induced by UV irradiation, and implies that O. vulgatum extract may be useful as a new ingredient for anti-aging cosmetics.
Keywords
ophioglossum vulgatum; antioxidant; ultraviolet; matrix metalloproteinase; anti-aging;
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