Effect of Ethanol Extract from Thesium chinense Tunczaninov on Chemopreventive Enzymes of Breast Cancer

하고초 에탄올추출물이 유방암 예방효소계에 미치는 영향

  • Nam, Kyung-Soo (Intractable Diseases Research Center and Department of Pharmacology, College of Medicine, Dongguk University) ;
  • Kim, Han-Gyu (Intractable Diseases Research Center and Department of Pharmacology, College of Medicine, Dongguk University) ;
  • Shon, Yun-Hee (Intractable Diseases Research Center and Department of Pharmacology, College of Medicine, Dongguk University)
  • 남경수 (동국대학교 난치병한양방치료연구센터 및 의과대학 약리학교실) ;
  • 김한규 (동국대학교 난치병한양방치료연구센터 및 의과대학 약리학교실) ;
  • 손윤희 (동국대학교 난치병한양방치료연구센터 및 의과대학 약리학교실)
  • Published : 2003.06.30

Abstract

Ethanol extract from Thesium chinense Tunczaninov (TCTE) was tested for breast cancer chemopreventive activity by measuring 7,12-dimethylbenz[a]anthracene (DMBA) - induced cytochrome P450 1A1 activity, induction of quinone reductase and glutathione S-transferase, and glutathione level. TCTE significantly inhibited cytochrome P45O 1A1 activity at the concentration of 90 and 150 mg/ml. TCTE induced quinone reductase activity in a dose-dependent manner in a concentration range of 3-150 mg/ml. In addition glutathione S-transferase activity and glutathione level were increased with TCTE in cultured murine hepatoma Hepa1c1c7 cells. These results suggest that TCTE has breast cancer chemopreventive potential by inhibiting cytochrome P45O 1A1 activity, inducing quinone reductase and glutathione S-transferase activities, and increasing GSH level.

Keywords

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