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논문 기본 정보

자료유형
학술저널
저자정보
Han, Seon-Kyu (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) Choi, Wook-Hee (Department of Health Science, Dongduk women's University) Ann, Hyoung-Soo (Department of Pharmacology, Dongduk women's University) Ahn, Ryoung-Me (Department of Health Science, Dongduk women's University) Yi, Seh-Yoon (College of Natural Science, Suwon University)
저널정보
대한독성유전단백체학회 Molecular & cellular toxicology Molecular & cellular toxicology 제4권 제1호
발행연도
2008.1
수록면
85 - 91 (7page)

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These days there is a constant possibility of exposure to UV radiation which can cause abnormal production of melanin and result in skin disease such as hyperpigmentation and melanoma. Many materials were investigated for skin whitening and protection against UV radiation. In this study, we assessed the melanogenesis inhibitory activities of Korean Red Ginseng (KRG, Ginseng Radix Rubra) and Ginkgo (EGb 761 Ginkgo Biloba) in an attempt to develop a new skin whitening agent derived from natural products. B16F10 melanoma cells were treated for 48 hr with KRG and EGb 761. The inhibitory effect on melanogenesis was measured and related cytokines and proteins expression were also investigated by RT-PCR and Western blotting. In addition, we also assessed the effects of these substances on the skin of C57BL/6 mice. Cell growth, melanin content and tyrosinase activity were inhibited effectively in B16F10 melanoma cells treated with KRG and EGb 761. Moreover, tyrosinase mRNA expression was inhibited clearly and melanogenesis related proteins (MRPs) containing tyrosinase, TRP1 and TRP2 were also reduced by KRG and EGb761, while cytokines such as IL-$1{\beta}$ and IL-6 were induced. In the case of UV irradiated mice, we observed induction of cytokine mRNA levels and reduction of MRPs mRNA expression. In addition, a decrease in pigmentation from treatment with KRG and EGb 761 on the skin of mice was observed. These results indicate that KRG and EGb 761 inhibit melanogenesis in B16F10 cells and have display protective activities against UVB. Therefore, we suggest that KRG and EGb 761 are good candidates to be used as whitening agents and UVB protectors for the skin.

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