한국식품영양과학회지 (Journal of the Korean Society of Food Science and Nutrition)

  • 제33권6호
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  • Pages.1074-1077
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  • 2004
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  • 1226-3311(pISSN)
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  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
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저령의 암세포증식 억제효능

Activity of the Extracts from Polyporus umbellatus as a Apoptosis Inducer

  • 신유진 (동서대학교 식품생명공학과) ;
  • 김봉선 (동서대학교 식품생명공학) ;
  • 서용준 (동서대학교 식품생명공학) ;
  • 조덕제 (동서대학교 식품생명공학) ;
  • 최원일 (대우약품(주) ;
  • 이용규 (동서대학교 식품생명공학과)
  • 발행 : 2004.07.01
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초록

저령의 에틸아세테이트 추출물에서 4개의 분획을 제조한 후 백혈병 세포인 K-562, L-1210, HL-60와 U-937 세포의 세포생존 억제효능을 관찰하였다. Fr. 2는 L-1210, HL-60 세포 억제효능이 미비하였고, Fr. 3은 4종의 백혈병 세포주에 대하여 세포생존 억제효능이 있었다. 이 효능은 L-1210 세포에 대하여 가장 강하게 나타났다. 세포사멸 작용을 증명하는 DNA분절 현상을 L-1210 세포에서 관찰하였을 때, fr. 3을 30 $\mu\textrm{g}$/mL, 100 $\mu\textrm{g}$/mL로 처리한 군에서 만 DNA분절 현상이 관찰되었다. Fr. 3에 대한 DNA합성 억제능을 [$^3$H]thymidine incorporation test로 관찰하였을 때 50 $\mu\textrm{g}$/mL, 100 $\mu\textrm{g}$/mL로 처리한 군에서만 [$^3$H]thymidine incorporation이 저하되었다. 결론적으로 저령에는 백혈병세포인 L-1210과 HL-60의 세포생존 억제성분이 포함되어 있으며, 억제작용은 L-1210에 가장 뚜렷이 나타내었다. Fr. 3은 L-1210 세포에 대하여 DNA 합성능을 저해시켰고, Fr. 3가 L-1210 세포에 대하여 세포생존 억제작용을 나타내는 것은 계획된 세포사멸현상인 apoptosis에 의한 것으로 사료된다. 따라서 fr. 3에 대한 성분 연구가 요구되어진다.

The effect of gradient eluted fractions from Et$_2$O extracts of Polyporus umbellatus screlotium was investigated on the viability of leukemia cell lines, K-562, L-1210, HL-60 and U-937 cells. Among those fractions, fraction 2 showed mild cytotoxic effect on L-1210 and HL-60 cells. Fraction 3 showed cytotoxic effect on 4 cell lines, and cytotoxic effect was the most potent on L-1210. The hallmark of apoptosis, DNA fragmentation, also appeared by fraction 3 on L-1210 after 48 hr treatment. Furthermore, this fraction was shown to be able to induce cell death on L-1210 cells by the inhibition of DNA synthesis in [$^3$H]thymidine incorporation test. From these results, P. umbellatus involves a potent chemical component that inhibits the viability of leukemia cell lines, L-1210. Further studies about the components of fraction 3 to function as a apoptosis inducer are necessary.

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