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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Antimutagenic and Cytotoxic Effects of Hovenia dulcis Thumb Leaves Extracts

헛개나무 잎 추출물의 항돌연변이원성 및 암세포 성장억제효과

  • 박선희 (영남대학교 식품영양학과) ;
  • 장은영 (영남대학교 식품영양학과)
  • Published : 2007.11.30
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Abstract

The effect of Hovenia dulcis Thumb leaves on the mutagenicity in salmonella assay and inhibitory effects on the growth of cancer cells were studied. On antimutagenicity as evaluated by Ames test, the extract and fractions of Hovenia dulcis Thumb leaves had no effect on the mutagenicity by themselves. However, methanol extract and fractions from Hovenia dulcis Thumb showed strong inhibitory effect on the mutagenesis induced by N-methyl-N#-nitro-N-nitroso-guanidine (MNNG) and benzo(a)pyrene (B(a)P). Among the solvent fractions of methanol extract, the hexane, chloroform and butanol fraction exhibited stronger inhibitory activity against MNNG and B(a)P induced mutagenesis than water fraction. For anticancer effects, Hovenia dulcis Thumb loaves extract and fractions against cancer cell lines including HepG2 and HT29 were investigated. The methanol extract, the hexane fraction and the chloroform fraction of Hovenia dulcis Thumb leaves inhibited growth of cancer cells but they had no effect on the cytotoxicity of normal human liver cells under the same conditions.

예로부터 약용으로 이용되어온 헛개나무 잎을 이용하여 항돌연변이원성 및 암세포 성장 저해효과를 조사하였다. 헛개나무 잎의 돌연변이 억제 효과를 Ames test로 검색한 결과, 헛개나무 잎의 메탄올 추출물과 분획물 그 자체의 돌연변이원성은 없었으며, 헛개나무 잎의 메탄올 추출물은 직접 변이원인 N-methyl-N#-nitro-N-nitroso-guanidine(MNNG)와 간접변이원인 benzo(a)pyrene(B(a)P)의 돌연변이 유발성을 크게 저해하였다. 또한 메탄올 추출물에서 분리한 분획물들도 유의성 있는 돌연변이 억제효과를 나타내었으며 특히 헥산, 클로르포름, 부탄올 분획물의 경우는 물 분획물보다 MNNG와 B(a)P에 대해서 더 큰 항돌연변이 효과를 나타내었다. 그리고 헛개나무 잎의 메탄올 추출물과 그 분획물들의 사람의 암세포주인 HT29와 HepG2에 대한 성장 저해 효과를 MTT assay로 검토한 결과 헛개나무 잎의 메탄올 추출물과 헥산, 클로로포름 분획물들이 높은 암세포 성장 저해 효과를 나타내었으며 농도 의존적인 경향을 보였다. 그러나 사람의 정상 간세포인 Chang cell에서는 세포독성이 나타나지 않았다. 이상의 실험 결과로 헛개나무 잎은 발암물질로부터 생체를 보호하는 물질을 함유하고 있을 것으로 사료된다.

Keywords

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