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어성초(Houttuynia cordata) 추출물이 Tyrosinase유전자 발현에 미치는 효과 -연구노트-

Effect of Houttuynia cordata Extracts on Tyrosinase Gene Expression

  • 발행 : 2005.10.01

초록

멜라닌 색소 생성에 관여하는 tyrosinase 유전자의 발현을 억제하는 물질을 탐색하고자 tyrosinase 프로모터를 지닌 Bl6 mouse melanoma cell에 어성초 메탄올 추출물을 처리한 결과 메탄올 추출물은 10$\mu$g/mL와 100$\mu$g/mL의 농도에서 대조군에 비해서 약 13$\%$와 45$\%$의 억제효과를 나타냈으며, 세포생존율은 1$\mu$g/mL, 10$\mu$g/mL, 100$\mu$g/mL의 농도에서 약 104$\%$, 101$\%$, 74$\%$로서 세포독성이 낮게 나타났다. Butyl alcohol과 물 분획물은 tyrosinase 유전자의 발현을 억제하는 효과가 없 었지만 methylene chloride 분획물은 tyrosinase 유전자의 발현을 억제하는 효과를 나타내었으며, 특히 methylene chloride 분획물은 10$\mu$g/mL와 100$\mu$g/mL의 농도에서 각각 약 82$\%$와 48$\%$의 발현율을 나타냄으로써 대조군에 비해 tyrosinase유전자의 발현을 크게 억제하였다.

The methanol extract of Houttuynia cordata repressed the expression of tyrosinase gene of Bl6 mouse melanoma cell containing tyrosinase promoter. The extract repressed expression of tyrosinase gene by about 13$\%$ and 45$\%$ at 10$\mu$g/mL and 100 $\mu$g/mL, respectively. In the MTT assay, the same extract exhibited very low cytotoxicity at 1$\mu$g/mL, 10$\mu$g/mL, and 100 $\mu$g/mL, respectively. The fractions of ethyl acetate, butyl alcohol, and water did not showed the repressive effect on the expression of tyrosinase gone, but methylene chloride fraction layer repressed highly at 10$\mu$g/mL and 100$\mu$g/mL.

키워드

참고문헌

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