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참깨 추출물의 항산화 활성 및 melanoma cell (B16F10)에서 MITF, TRP-1, TRP-2, tyrosinase 의 발현 저해

Anti-oxidant Function and Inhibitory Effects of the Expression of MITF, TRP-1, TRP-2 and Tyrosinase of Sesamum indicum L. in B16F10 Melanoma Cells

  • 유단희 (호서대학교 한방화장품과학과) ;
  • 주다혜 (호서대학교 한방화장품과학과) ;
  • 이진영 (호서대학교 한방화장품과학과)
  • Yoo, Dan-Hee (Department of Herbal Cosmetic Science, Hoseo University) ;
  • Joo, Da-Hye (Department of Herbal Cosmetic Science, Hoseo University) ;
  • Lee, Jin-Young (Department of Herbal Cosmetic Science, Hoseo University)
  • 투고 : 2016.10.13
  • 심사 : 2017.02.13
  • 발행 : 2017.03.30

초록

본 연구는 참깨 70% 에탄올 추출물의 항산화 효과와 미백효과를 검증하여 나타내었다. 참깨 추출물의 전자공여능 측정실험은 $1,000{\mu}g/ml$에서 71.7%의 효과를 나타냈으며, tyrosinase 저해활성 측정은 $1,000{\mu}g/ml$의 농도에서 42%의 효과를 보였다. 참깨 추출물의 세포 생존율을 melanoma cell (B16F10)에서 확인하기 위하여 MTT assay를 진행하였으며, 세포 생존율을 측정한 결과, $1,000{\mu}g/ml$ 농도에서 84.3%의 독성을 보였다. 이하의 세포실험에서는 세포 생존율이 90% 이상되는 농도인 $500{\mu}g/ml$ 이하에서 실험을 진행하였다. 참깨 추출물의 MITF, TRP-1, TRP-2 및 tyrosinase의 단백질 발현 효과를 50, 250, $500{\mu}g/ml$ 농도에서 측정하였으며, 그 결과 MITF, TRP-1, TRP-2 및 tyrosinase의 각각 $500{\mu}g/ml$ 농도에서 68.3%, 39.2%, 89.7%, 22.3%의 단백질 발현 억제 효과를 보였다. 또한, MITF, TRP-1, TRP-2 및 tyrosinase의 mRNA발현을 RT-PCR로 50, 250, $500{\mu}g/ml$ 농도에서 측정하였고, 양성 대조군으로 GAPDH를 사용하였다. 그 결과, 참깨 추출물의 $500{\mu}g/ml$ 농도에서 각각 81.8%, 66.5%, 84.2%, 68.1%의 mRNA 발현이 감소함을 확인할 수 있었다. 이상의 결과로 부터 참깨 추출물의 화장품 소재로서의 가능성을 확인할 수 있었다.

This study was performed to improve the antioxidant and skin-whitening activities of 70% ethanol extract from Sesamum indicum L. (SIL). The electron-donating ability of the SIL extract was 71.7% at a concentration of $1,000{\mu}g/ml$. The whitening effects that was measured by tyrosinase inhibition assay. As a result, SIL extract was shown 42% at $1,000{\mu}g/ml$ concentration. The cell toxicity on B16F10 melanoma cells of SIL of 70% ethanol extract showed 84.3% at $1,000{\mu}g/ml$ concentration. The microphthalmia-associated transcription factor (MITF), tyrosinase relate protein-1 (TRP-1), tyrosinase relate protein-2 (TRP-2) and Tyrosinase protein and mRNA expression inhibitory effect of SIL extract were measured by western blot and reverse transcription- polymerase chain reaction (PCR) at 50, 250, $500{\mu}g/ml$ concentration. Consequently, the MITF, TRP-1, TRP-2, Tyrosinase protein expression inhibitory effect of SIL extract was decreased by 68.3%, 39.2%, 89.7%, 22.3%, respectively, at $500{\mu}g/ml$ concentration. Moreover, MITF, TRP-1, TRP-2, Tyrosinase mRNA expression inhibitory effect by reverse-transcription-PCR of SIL extract was decreased by 81.8%, 66.5%, 84.2%, 68.1%, respectively, at $500{\mu}g/ml$ concentration. Therefore, we excellently identified the antioxidant activities and whitening effect of SIL extract, and this finding suggested that SIL extract has great potential as a cosmetic ingredients.

키워드

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