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한국산 현미 및 율무 추출물에 의한 돌연변이 및 인체 암세포주 증식 억제 효과

Inhibitory Effects of Methanol Extracts from Korean Orysa sartiva and Coix lachryma-jobi var. ma-yuen on Mutagenicity and Growth of Human Cancer Cells

  • 임선영 (한국해양대학교 해양환경생명과학부)
  • Lim, Sun-Young (Division of Marine Environment & Bioscience, Korea Maritime University)
  • 발행 : 2008.10.30

초록

본 연구에서는 비교적 양질의 영양소를 가진 현미 및 율무 메탄올 추출물의 항돌연변이 및 인체 암세포 증식억제 효과에 대하여 알아보고자 하였다. Ames test를 이용한 돌연변이 억제 실험에서 $AFB_1$ (0.6 mg/plate)에 대해 현미 메탄올 추출물은 농도의 증가와 더불어 돌연변이 억제 효과가 증가하여 첨가농도 2.5 및 5 mg/plate일 때 각각 70% 및 76%의 억제 효과를 나타내었다. 율무 메탄올 추출물의 경우도 첨가농도 2.5 및 5 mg/plate일 때 각각 60% 및 76%의 항돌연변이 효과를 관찰 할 수가 있었다. 직접돌연변이원인 MNNG에 대해서도 현미 및 율무 메탄올 추출물들은 첨가농도 5 mg/plate에서 각각 79% 및 69%의 항돌연변이 효과를 나타내었다. 인체 위암세포(AGS)에 현미 메탄올 추출물을 5, 10, 20 mg/ml의 농도별로 처리했을 때 농도 의존적으로 암세포 증식 억제 효과가 증가하였다. 율무 메탄올 추출물의 경우도 현미 메탄올 추출물과 유사하게 농도 의존적으로 암세포의 증식을 억제시켰으며 첨가농도 20 mg/ml일 때 77%의 증식 억제효과를 살펴 볼 수가 있었다. 인체 결장암세포(HT-29)의 경우에서도 이들 현미 및 율무추출물은 낮은 농도에서부터 그 억제효과가 나타나 농도 의존적으로 암세포의 증식을 억제시켰다.

This study was carried out to determine the inhibitory effects of methanol extracts from Korean Orysa sartiva and Coix lachryma-jobi var. ma-yuen on mutagenicity using Ames test and growth of AGS human gastric adenocarcinoma and HT-29 human colon cancer cells. Both treatments of methanol extracts (5 mg/assay) from Orysa sartiva and Coix lachryma-jobi var. ma-yuen to Ames test system inhibited aflatoxin $B_1$ ($AFB_1$) induced mutagenicity by 76%. In case of N-methyl-N'-nitro-N-nitrosoguamidine (MNNG) induced mutagenicity, the methanol extracts (5 mg/assay) from Orysa sartiva and Coix lachryma-jobi var. ma-yuen showed 79% and 69% inhibitory rate, respectively and the inhibitory effect was a little stronger in Orysa sartiva Inhibitory effects of methanol extracts from Orysa sartiva. and Coix lachryma-jobi var. ma-yuen on the growth of AGS and HT-29 human cancer cells were increased as dose dependent patterns and the inhibitory effects on AGS and HT-29 cells were similar. The above results indicate that the consumption of these cereals, which contain many nutrients with good quality, may be recommended as potent functional foods for improving health.

키워드

참고문헌

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