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

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Study on the Whitening Efficacy and Skin Barrier by Lysosome-related Organelle Extract (LOE) from Egg White

난백(Egg White)에서 추출한 리소좀 추출물(LOE)의 미백 효능 및 피부장벽에 관한 연구

  • Choi, Da Hee (School of cosmetic science and beauty biotechnology, Semyung University) ;
  • Jeon, Gyeongchan (Graduate School of Semiconductors and Chemical Engineering, Jeonbuk National University) ;
  • Yoon, Jihee (Graduate School of Semiconductors and Chemical Engineering, Jeonbuk National University) ;
  • Min, Jiho (Graduate School of Semiconductors and Chemical Engineering, Jeonbuk National University) ;
  • Park, Si Jun (ACT R&D Center) ;
  • Kim, Jung Su (ACT R&D Center) ;
  • Hwang, Ee Taek (Korea Institute of Ceramic Engineering & Technology) ;
  • Hwang, Hyung Seo (School of cosmetic science and beauty biotechnology, Semyung University)
  • 최다희 (세명대학교 화장품뷰티생명공학부) ;
  • 전경찬 (전북대학교 화학공학부) ;
  • 윤지희 (전북대학교 화학공학부) ;
  • 민지호 (전북대학교 화학공학부) ;
  • 박시준 ((주)에이씨티 기술연구소) ;
  • 김정수 ((주)에이씨티 기술연구소) ;
  • 황이택 (한국세라믹기술원) ;
  • 황형서 (세명대학교 화장품뷰티생명공학부)
  • Received : 2019.11.24
  • Accepted : 2019.12.17
  • Published : 2019.12.30
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Abstract

Lysosomes are cellular organelles involved in energy metabolism and intracellular digestion in eukaryotic cells, including protease, nuclease, glycosidase, lipase, and phosphatase. Our previous studies have confirmed that egg white lysosomes had melanin decolorization and reduction activity. However, there have been few studies on skin barrier and skin regeneration as well as inhibition of melanin production by egg white lysosomes on B16F10 melanocyte cell line. In this study, we attempted to identify the effect of lysosome-related organelle extract (LOE) extracted from egg white on the melanin content change and skin barrier enhancement in cells. First, cytotoxicity evaluation was performed on B16F10 melanocyte cell line to confirm the whitening efficacy of LOE. Cytotoxicity by LOE was not observed at 20 mg/mL concentration, but cytotoxicity was observed at 40 mg/mL, and the maximum concentration value was set to 20 mg/mL in all subsequent experiments. LOE samples of 5, 10, 20 mg/mL inhibited melanin production by 61.5 ± 4.0%, 61.4 ± 7.3%, 58.3 ± 8.3%, respectivly, compared to α-MSH, a negative control in melanin contents assay. MITF mRNA expression was reduced by about 39.7 ± 3.2% compared to the α-MSH treatment group. TEER assay using HaCaT showed that LOE increased TEER resistance in a dose-dependent manner, indicating that LOE is involved in strengthening the skin barrier. LOE also increased the TEER resistance under TNF-α treatment. Skin barrier was normally restored by LOE even under the condition of inflammation. LOE had a positive effect on cell division and cell migration promotion, confirmed by the observing the effect of promoting cell migration by LOE through cell migration assay. Taken together, we expect that LOE can be developed as a cosmetic material to enhance has effects on skin regeneration and skin barrier strengthening as well as whitening function if enzyme stabilization and formulation technology are combined.

리소좀(lysosome)은 진핵세포에서 에너지 대사 및 세포 내 소화 작용에 관여하는 세포 소기관으로 protease, nuclease, glycosidase, lipase, phosphatase 들이 다수 존재한다. 우리는 선행 연구결과들을 통해 난백 리소좀의 멜라닌 색소 탈색능을 보고하였다[8]. 그러나 B16F10 melanocyte 세포주에서 난백 리소좀에 의한 멜라닌 함량 변화 및 피부장벽 조절 연구는 거의 보고되지 않았다. 따라서 우리는 계란 난백(egg white)으로부터 추출한 lysosome-related organelle extract (LOE)에 의한 세포 내 멜라닌 함량 변화 및 피부장벽 강화 효과를 규명하고자 하였다. 먼저 LOE의 미백 효능을 확인하기 위해 B16F10 세포주를 이용하여 세포독성 평가를 진행하였다. B16F10 세포주에서 LOE에 의한 세포독성은 0에서 20 mg/mL 농도에서 관찰되지 않았으나, 40 mg/mL 부터 세포독성이 관찰되어 이후 모든 실험에서 최대 농도값을 20 mg/mL로 설정하였다. 먼저 LOE를 이용한 melanin contents assay 결과, 음성 대조군인 α-MSH 처리군 대비 LOE 처리군 5, 10, 20 mg/mL 농도에서 61.5 ± 4.0%, 61.4 ± 7.3%, 58.3 ± 8.3%로 세포 내 멜라닌 함량이 감소되는 것을 확인하였고, 20 mg/mL 농도 조건에서 MITF 발현 억제도 관찰하였다. LOE의 피부 장벽에 미치는 영향을 관찰하기 위해 각질형성세포주(HaCaT)를 이용하여 TEER (trans-epithelial electrical resistance) assay를 수행한 결과, LOE에 의해 농도 의존적으로 TEER 저항값이 증가하여 LOE가 피부장벽 강화에도 효과가 있음을 알 수 있었다. 또한 피부 염증 유발을 위한 TNF-α 처리조건에서도 LOE는 TEER 저항값을 증가시켜 염증 유발 조건에서도 LOE에 의해 피부장벽이 정상적으로 회복되었음을 알 수 있었다. 마지막으로 cell migration assay를 통해 LOE에 의한 세포이동 촉진 효과를 관찰한 결과, LOE는 세포분열 및 세포이동을 촉진시켰다. 위 결과들을 통해 LOE는 미백 기능 뿐 아니라 피부재생 및 피부장벽 강화에도 효과를 나타내는 소재이며, 효소안정화 및 제형화 기술이 접목된다면 향후 새로운 미백 기능성 화장품 소재로도 개발될 수 있을 것이다.

Keywords

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