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

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Inhibitory Effects of Carex humilis Extract on Elastase Activity and Matrix Metalloproteinase-1 Expression

산거울 추출물의 Elastase 활성 저해 및 Matrix Metalloproteinase-1 발현 억제 효과

  • 박선희 ((주)바이오랜드 생명공학연구소) ;
  • 이강혁 ((주)바이오랜드 생명공학연구소) ;
  • 한창성 ((주)바이오랜드 생명공학연구소) ;
  • 김기호 ((주)바이오랜드 생명공학연구소) ;
  • 김영희 ((주)바이오랜드 생명공학연구소)
  • Received : 2010.03.22
  • Accepted : 2010.06.08
  • Published : 2010.06.30
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Abstract

In order to evaluate anti-wrinkle activity of Carex humilis extract, free radical scavenging activity, elastase inhibitory activity and reduction of expression Matrix metalloproteinase-1 (MMP-1) mRNA and MMP-1 protein were investigated. The roots of Carex humilis were extracted with 95 % ethanol and successively partitioned with organic solvents with increasing polarity of the solvents. Each fraction of organic solvent were investigated by using free radical scavenging activity and elastase inhibitory activity test. Among them, EtOAc fraction showed antioxidant activity ($SC_{50}$=4.89 ${\mu}g/mL$) and elastase inhibitory activity ($IC_{50}$=23.5 ${\mu}g/mL$). EtOAc fraction was developed on silica gel by open-column chromatography and consecutively re-developed on C18 resin by prep-HPLC to give ${\alpha}$-viniferin as a major component, which was confirmed by spectrometric analysis. In the assay on expression of MMP-1 mRNA by RT-PCR and protein by western-blot, EtOAc layer (10 ~ 100 ${\mu}g/mL$) was reduced about 50 ~ 60 %, 50 ~ 65 % respectively and ${\alpha}$-viniferin (0.5 ~ 2 ${\mu}g/mL$) was inhibited about 60 ~ 75 %, 55 ~ 65 % respectively in human fibroblast. Therefore, our findings suggest that EtOAc layer of Carex humilis containing ${\alpha}$-viniferin can be useful as an active ingredient for cosmeceuticals of anti-wrinkle effects.

본 연구에서는 산거울 추출물의 항주름 활성을 연구하기 위하여 항산화, 엘라스타제 활성 억제, Matrix metalloproteinase-1 (MMP-1) mRNA 발현 및 단백질의 생성 억제 관련 실험을 진행하였다. 산거울의 뿌리부분을 95 % 에탄올로 추출하고 유기 용매로 분획하여 각 추출물 분획물에 대한 항산화 활성과 엘라스타제 억제 효능을 측정한 결과, EtOAc 분획이 각각 SC50=4.89 ${\mu}g/mL$, IC50=23.5 ${\mu}g/mL$ 로 가장 우수한 결과를 나타내었다. 따라서 활성이 가장 좋은 EtOAc 분획물로 부터 실리카겔 컬럼 크로마토그래피를 이용하여 활성물질을 분리하고, 분리된 물질이 ${\alpha}$-viniferin임을 분광학적 분석결과로 확인하였다. RT-PCR을 이용한 MMP-1 mRNA 발현능 평가에서 EtOAc 분획물과 ${\alpha}$-viniferin은 각각 50 ~ 60 % (10 ~ 100 ${\mu}g/mL$), 약 60 ~ 75 % (0.5 ~ 2 ${\mu}g/mL$)의 저해효과를 나타내었으며, Western-blot을 이용한 MMP-1 단백질 생성을 평가한 결과에서 역시 EtOAc 분획물과 ${\alpha}$-viniferin은 같은 농도에서 각각 50 ~ 65 %와 55 ~ 65 % 저해 효과를 나타내었다. 결론적으로, ${\alpha}$-viniferin을 함유한 산거울의 EtOAc 분획층의 주름 개선용 기능성 화장품 개발을 위한 소재로 개발 가능성을 확인하였다.

Keywords

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