Applied Biological Chemistry

  • 제49권4호
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  • Pages.270-275
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  • 2006
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  • 2468-0834(pISSN)
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  • 2468-0842(eISSN)
한국응용생명화학회 (The Korean Society for Applied Biological Chemistry)
권호 표지

$2{\beta}$, $3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid처리에 의한 인간 간암세포주 HepG2의 apoptosis 유도

[ $2{\beta}$ ], $3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic Acid Induces the Apoptosis of Human Hepatoma HepG2 Cells

  • 발행 : 2006.12.31
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초록

Triterpenoid를 포함하고 있는 $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid를 애기마름으로부터 분리하였다. 이것은 pentacyclic triterpenes의 공통 구조를 가지며 amyrin ursolic acid 그룹에 속해 있다. 본 연구에서는 이 화합물의 독성 영향을 인간 간암 세포주인 HepG2에서 조사하였다. $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid는 처리한 양에 비례하여 HepG2 세포주에서 독성을 보였다. 그리고 Confocal microscopy 결과는 $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid를 HepG2 세포에 처리한 시간에 비례하여 녹색 형광의 증가를 보여주었다. $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid는 또한 HepG2 세포의 sub-G1 cell population 뿐만 아니라 DNA 분절(fragmentation) 현상의 증가를 보여 주었다. 이러한 결과는 $22{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid가 HepG2 세포에서 apoptosis를 통한 세포 사멸 유도를 의미한다.

[ $2{\beta},\;3{\alpha}$ ], 23-trihydroxyrus-12-ene-28-oic acid was isolated from Trapa pseudoincisa S. et Z. It has a common structure of pentacyclic triterpenes and belongs to the amyrin ursolic acid group. The cytotoxic effect of this compound was investigated in human hepatoma cell line HepG2. $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid showed dose-dependent cytotoxicity in HepG2 cells. Confocal microscopy data showed that green fluorescence was increased in $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid treated-HepG2 cells in a time-dependent manner. $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid also increased the sub-G1 cell population of HepG2 cells as well as ladder-like DNA fragmentation. Taken together, our results indicate that $2{\beta},\;3{\alpha}$, 23-trihydroxyrus-12-ene-28-oic acid induced apoptosis in HepG2 cells.

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