Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Inhibitory Effects on Melanin Production in B16 Melanoma Cells of Fallen Pear

B16F10 Melanoma 세포에서 낙과 배 물 추출물의 멜라닌 생성 저해 효과

  • Shin, Bo Yeon (Food Research Center, Jeonnam Bioindustry Foundation) ;
  • Jung, Bo Ram (Food Research Center, Jeonnam Bioindustry Foundation) ;
  • Jung, Jong Gi (Food Research Center, Jeonnam Bioindustry Foundation) ;
  • Cho, Seung Sik (Department of Pharmacy, College of Pharmacy, Mokpo National University) ;
  • Bang, Mi Ae (Food Research Center, Jeonnam Bioindustry Foundation)
  • 신보연 ((재)전남생물산업진흥원 식품산업연구센터) ;
  • 정보람 ((재)전남생물산업진흥원 식품산업연구센터) ;
  • 정종기 ((재)전남생물산업진흥원 식품산업연구센터) ;
  • 조승식 (목포대학교 약학과) ;
  • 방미애 ((재)전남생물산업진흥원 식품산업연구센터)
  • Received : 2016.10.20
  • Accepted : 2017.02.24
  • Published : 2017.03.31
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Abstract

This study investigated the water extracts of fallen pear (FPWE) on tyrosinase activity and melanogenesis. In the present study, we examined the effects of FPWE on mushroom tyrosinase activity in vitro, B16F10 melanoma cell tyrosinase activity, melanin contents, and expression of melanogenic enzyme proteins such as tyrosinase. An apparent down-regulatory effect on tyrosinase activity was observed when B16F10 cells were incubated with FPWE. Results of melanin assay using B16F10 cells treated with different concentrations (50, 125, and $250{\mu}g/mL$) of FPWE showed a dose-dependent decrease in melanin content. To determine whether or not FPWE indirectly affects tyrosinase activity, we assessed mushroom tyrosinase activity upon treatment with various concentrations (125, 250, 500, and $1,000{\mu}g/mL$) of FPWE. In addition, we investigated changes in the protein level of tyrosinase by using Western blotting. Tyrosinase and microphthalmia-associated transcription factor expression levels in B16F10 melanoma cells were reduced in a dose-dependent manner by FPWE. These results suggest that FPWE reduced melanin formation by inhibition of tyrosinase activity. Therefore, we suggest that FPWE could be used an effective whitening agent for skin.

본 연구에서는 낙과 배 물 추출물에 존재하는 미백기능 유효성분으로써 arbutin을 선정하여 HPLC를 통해 가장 높은 함량을 보인 낙과 배 물 추출물로 미백 효과를 알아보았다. 낙과 배 물 추출물의 미백 효과를 알아보기 위하여 B16F10 melanoma 세포를 이용하여 세포 내 tyrosinase 저해 효과, melanin 생성 저해 효과, tyrosinase와 관련된 단백질 발현에 미치는 영향을 연구하였다. 그 결과 낙과 배 물 추출물은 tyrosinase 활성과 B16F10 melanoma 세포의 melanin 생성 저해 효과를 나타내었다. 또한, MiTF와 tyrosinase의 발현의 억제를 통해 미백 효과를 나타내는 것으로 확인되었으며, mushroom tyrosinase 결과를 통해 melanin 생성 과정에 있어 tyrosinase를 직접 저해하는 것이 아닌 세포 내에서 tyrosinase의 발현 조절을 통해 저해하는 것으로 확인하였다. 따라서 낙과 배 물 추출물은 천연 arbutin 미백 기능성 화장품 소재 개발로 이용 가능성이 높은 것으로 판단된다. 낙과 배를 이용한 새로운 뷰티케어 소재를 개발하고 이들의 피부 기능성을 밝혀냄으로써 낙과 배의 다양한 활용성이 증대될 것으로 기대되며, 이를 통하여 국내 과실 농가 및 관련 사업에 기여할 것으로 생각된다.

Keywords

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