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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Cytotoxic Effect of Extracts from Styela clava against Human Cancer Cell Lines

암세포주에 대한 미더덕 추출물의 세포독성 효과

  • Jung, Eun-Sil (Dept. of Food Science and Biotechnology, Kyungnam University) ;
  • Kim, Ju-Young (Dept. of Food Science and Biotechnology, Kyungnam University) ;
  • Park, Eun-Ju (Dept. of Food and Nutritional Sciences, Kyungnam University) ;
  • Park, Hae-Ryong (Dept. of Food Science and Biotechnology, Kyungnam University) ;
  • Lee, Seung-Cheol (Dept. of Food Science and Biotechnology, Kyungnam University)
  • 정은실 (경남대학교 식품생명학과) ;
  • 김주영 (경남대학교 식품생명학과) ;
  • 박은주 (경남대학교 식품영양학과) ;
  • 박해룡 (경남대학교 식품생명학과) ;
  • 이승철 (경남대학교 식품생명학과)
  • Published : 2006.08.30
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Abstract

The present study describes the preliminary evaluation of the cytotoxic effect from Styela clava (Korean name : miduduk) extracts. S. clava was treated with methanol, ethanol, acetone, and water, then cytotoxic effect of the extracts were evaluated by the MTT reduction assay. The ethanol extracts from S. clava showed the cytotoxic activity on the HT-29 human colon cancer cells. The ethanol extracts was further fractionated with n-hexane, diethyl ether, ethyl acetate, and water according to the degree of polarity. The diethyl ether fraction showed high cytotoxic activity of HT-29 cells. however, the other fractions showed low cytotoxicity. The diethyl ether layer also showed the cytotoxic activity against SW620, HeLa, and MCF-7 cells. These studies support that extracts from S. clava may be a potential candidate as a possible chemotherapeutic agent against human cancer cells.

신선한 미더덕을 동결건조하여 분말로 만들어 water, MeOH, EtOH 및 acetone의 용매로 추출하여 항암활성을 조사하였다. 대장암 세포주 HT-29에 대한 미더덕 추출물의 암세포증식 억제효과는 ethanol 추출물이 $500\;{\mu}g/mL$ 농도에서 45.0%로 가장 높은 활성을 보였으며, 대조구와 다른 추출물에 비교하여 크게 세포의 응축과 세포수의 감소를 형태학적으로 관찰할 수 있다. 용매별 추출물 중 가장 강력한 항암활성을 가지는 ethanol 추출물을 이용하여 정제수율을 높여 암세포 성장억제효과를 확인하기 위하여 n-hexane, diethyl ether, ethyl acetate 및 water 순으로 극성을 높여 분획한 결과 diethyl ether 분획물에서 가장 높은 항암활성을 나타내었다. 그리고 diethyl ether 분획물을 인간대장암 유래의 세포주 SW620, 자궁경부암 세포 HeLa 및 유방암 세포 MCF-7에 처리하였을 때 농도 의존적으로 높은 항암활성이 나타났으며, 가장 높은 농도 $500\;{\mu}g/mL$ 처리 시 모두 10%이하의 세포 생존율을 나타내었다. 지금까지는 한약재를 비롯한 농산물 유래의 추출물이 항암효과를 보이는 연구가 보고된바 있으나 해양생물 유래의 추출물에서 항암효과를 보이는 결과에 대하여 구체적으로 보고된 바가 없는 실정이다. 따라서 이번 연구결과는 생리활성 물질을 탐색함에 있어서 해양생물이 중요한 천연자원이 될 수 있다는 가능성을 확인할 수 있었다.

Keywords

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