Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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The Inhibitory Effects of Acanthopeltis japonica on Melanogenesis

새발 추출물의 멜라닌 생성 저해 효과

  • Yoon, Hoon-Seok (Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University) ;
  • Kim, Jeong-Kook (Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University)
  • Published : 2007.06.30
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Abstract

To develop the skin whitening agent, we investigated the effects of Acanthopeltis japonica, a rhodophyta on the coast of Jeju island, on melanogenesis. Dried A. japonica was refluxed with 70 % aqueous ethanol and the extract was evaporated to dryness. To validate the activity as a depigmenting agent, various in vitro tests, polyphenol contents, and free radical scavenging activity were performed. In addition, cellular tyrosinase activity and protein expression of p-ERT, tyrosinase, TRP-1, and TRP-2 were measured in B16/F10 murine melanoma cells. A. japonica had low polyphenol contents and low free radicals scavenging activities against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. A. japonica suppressed cellular tyrosinase activity up to 86.9 % at $100{\mu}g/mL$ with inhibition or tyrosinase and TRP-1 expression in ${\alpha}$-melanocyte stimulating hormone (${\alpha}$-MSH)-treated B16/F10 melanoma cells. Our results suggest that inhibitory effects of A. japonica on melanogenesis are due to inhibiting the pathways involving ${\alpha}$-MSH-induced ERK activation. Therefore, A. japonica nay be useful as a skin whitening agent associated with the suppressive effect of melanotrophin-induced signaling pathway to inhibit melanin synthesis.

본 연구에서는 천연 미백소재 개발을 위하여 제주도 연안에 서식하는 해조류 중 홍조류의 일종인 새발 추출물의 멜라닌 생성에 연관된 생리활성을 분석하였다. 그 결과, 새발 추출물의 폴리페놀 함량은 2.0 % 이하였고, 라디칼 소거활성(DPPH)은 $IC_{50}$값이 $2,000{\mu}g/mL$ 이상이었으며, 세포독성은 관찰되지 않았다. 그리고 생쥐의 B16/F10 흑색종 세포에서 멜라닌 생합성에 관련된 효소의 저해효과를 알아본 결과, 알파-멜라노사이트 자극 호르몬에 의해 유도된 extracellular signal-regulated kinase 1/2 (ERK 1/2)의 활성화를 억제함으로써 티로시나제와 티로시나제 연관 단백질 1을 저해하는 것으로 확인되었다. 따라서 새발 추출물은 멜라닌 생합성에 필수적인 효소인 티로시나제의 저해활성과 티로시나제 연관 단백질 1의 발현억제 효과가 뛰어난 것으로 분석되었다. 그러므로 홍조류인 새발(Acanthopeltis japonica)의 추출물은 멜라닌 생성 자극제로 유도된 신호전달경로를 저해하는 미백 기능성 화장품 소재로서의 활용 가능성이 높을 것으로 사료된다.

Keywords

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