Skin Whitening and Skin Immune Activities of the Peptides Isolated from Crassostrea gigas by Ultrasonification Processes

초음파 복합처리를 통한 참굴 펩타이드의 피부미백 및 피부면역 활성

  • Han, Jae-Gun (Bio Materials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • Kim, Hyo-Sung (Bio Materials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • Kwon, Min-Chul (Bio Materials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • Kim, Jin-Chul (Bio Materials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • Hwang, Bo-Young (SKY007 Co.) ;
  • Lee, Hyeon-Yong (College of Bioscience and Biotechnology, Kangwon National University)
  • 한재건 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 김효성 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 권민철 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 김진철 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 황보영 ((주)SKY007) ;
  • 이현용 (강원대학교 BT특성화학부대학 생물소재공학과, 강원대학교 생명공학연구소, Research Institute of Bioscience and Biotechnology, Kangwon National University)
  • Published : 2008.08.01

Abstract

In this study, peptides were isolated from Crassostrea gigas using an ultrasonification process at $40^{\circ}C$. The yield of the peptides was greater than 34%, and their cytotoxicity was found to be less than 22.8% against several cell lines that were treated with the extracts at a dose of 1.0 mg/mL. In addition, the tyrosinase inhibitory and melanin synthesis of the peptides isolated from Crassostrea gigas were also evaluated to determine if they could be used as a potential cosmetic agent. The peptides were found to significantly inhibit the melanin synthesis of the clone M-3 cell line by up to 62.7%. The inhibitory activities of the tyrosinase were observed 34.51% in ascorbic acid, 42.49% in extract with the ultrasonification at $40^{\circ}C$ and 35.37% in $40^{\circ}C$ extract at 1.0 mg/mL concentration, respectively. Finally, when samples were treated with the peptide extracts at a concentration of 0.6 mg/mL, PGE2 expression was significantly decreased. Taken together, these results indicate that Crassostrea gigas may be a source of cosmetic agents capable of improving physiological hyperpigmenting and immuno-modulating skin disorders.

초음파를 병행한 참굴 시료로부터 조단백질의 수율은 34% 이상으로 높은 수율을 나타내었다. 분리 단백질을 SDS-PAGE로 검정한 결과 70 kDa와 50 kDa 사이에 특정 피크를 나타내었다. 이를 sephadex G-75 컬럼을 이용하여 분리하였으며 MALDI-TOF MS를 이용하여 분자량을 검정한 결과 66 kDa으로 판단하였다. 굴 추출물 및 펩타이드의 세포독성을 측정한 결과 최고농도인 1.0mg/mL에서 모두 22.8%를 나타내었으며 형태학적 차이를 나타내지 않아 굴의 저온 추출물 및 펩타이드가 식품 또는 향장 소재로서 독성을 나타내지 않는 것으로 사료된다. Melanocyte를 이용한 멜라닌 생성량 측정을 통해 굴 펩타이드의 미백활성을 탐색한 결과 최고 62.7%의 멜라닌 생성 저해 효과를 나타내었으며, 1.0mg/mL의 농도에서 tyrosinase의 활성을 35%까지 저해하는 것을 확인할 수 었었다. 피부 염증과의 관계를 알아보기 위하여 실행한 $PGE_2$ 생성량 측정의 경우 특정 수용체 (EP3)와 결합하면 알레르기 증상이 억제되는 것으로 밝혀졌는데, 연구의 결괴를 바탕으로 특정 펩타이드와 결합으로 인한 $PGE_2$의 생성 억제 가능성이 있으리라 사료된다. 이상의 결과에서 시료의 활성은 농도 의존적으로 경향을 나타남에 따라 특정 물질의 작용으로 불 수 있으며 melanocyte의 멜라닌 생성량 저해능과 더불어 향후, 보다 면밀한 정제를 통한 물질 검정의 단계를 거치면 천연 피부미백용 향장소재로서 피부미백 및 피부 면역 활성을 안전하게 향상시킬 수 있는 기능성 소재로 활용이 가능할 것으로 사료된다.

Keywords

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