The Inhibitory Effects of Acanthopanax sessiliflorum Seeman on Melanogenesis

오가피추출물의 멜라닌 생성 저해 효과

  • 임경란 ((주)사임당화장품 기술연구소) ;
  • 김미진 ((주)사임당화장품 기술연구소) ;
  • 정택규 ((주)사임당화장품 기술연구소) ;
  • 윤경섭 ((주)사임당화장품 기술연구소)
  • Published : 2008.06.30

Abstract

To develop a new natural whitening agent for cosmetics, we investigated effects of Acanthopanax sessiliflorum Seeman on melanogenesis. We prepared phenolic acid-rich extract including two phenolic acids, chlorogenic acid and caffeic acid, as predominant constituents from Acanthopanax sessiliflorum Seeman. Phenolic acid-rich extract showed ROS scavenging activities in 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical and xanthine/xanthine oxidase system with the $IC_{50}$ values of $3.43{\pm}0.35{\mu}g/mL$ and $158.91{\pm}1.57{\mu}g/mL$, respectively. Phenolic acid-rich fraction reduced melanin contents of B16 melanoma cells dose-dependantly and the decrease was $27.27{\pm}2.66%$ at a concentration of $100{\mu}g/mL$. And the phenolic acid-rich fraction reduced intracellular tyrosinase activity about $53.67{\pm}8.55%$ at a concentration of $100{\mu}g/mL$. Phenolic acid-rich extract inhibited tyrosinase and TRP-2 expression at protein level. These results suggest that phenolic acid-rich fraction reduced melanin formation by the inhibitions of tyrosinase activity and expression in B16 melanoma cells. Therefore, we suggest that phenolic acid-rich extract could be used as a whitening ingredient in cosmetics.

본 연구에서는 천연 미백소재 개발을 위하여 오가피에서 추출한 페놀산 분획의 멜라닌 생성에 연관된 생리활성을 분석하였다. 오가피에서 추출한 페놀산 분획은 free radical 소거활성(DPPH)에서 $IC_{50}=3.43{\pm}0.35{\mu}g/mL$, superoxide radicals 소거활성 $IC_{50}=158.91{\pm}1.57{\mu}g/mL$을 나타내었다. B16 melanoma 세포에서의 멜라닌 생합성 저해효과는 농도 의존적으로 저해하여 $100{\mu}g/mL$에서 $27.2{\pm}2.65%$의 저해율을 보였다. 그리고 오가피에서 추출한 페놀산 분획은 $100{\mu}g/mL$에서 세포 내 tyrosinase의 활성을 $53.67{\pm}8.55%$ 저해하였으며, Western blot을 이용하여 tyrosinase와 tyrosinase 관련 단백질(TRP-2)의 발현 감소를 확인하였다. 이러한 결과를 볼 때, 오가피에서 추출한 페놀산 분획은 tyrosinase의 활성 및 발현을 억제함으로써 멜라닌 생성을 감소시키는 것으로 사료된다. 그러므로 오가피에서 추출한 페놀산 분획추출물은 미백용도의 기능성 원료로써 큰 가능성을 가지고 있는 것으로 판단된다.

Keywords

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