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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제27권 제8호
- 발행연도
- 2004.1
- 수록면
- 845 - 849 (5page)
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초록· 키워드
오류제보하기
Many studies have focused on the anticarcinogenic, antimutagenic or chemopreventive activi-ties of capsaicin (trans-8-methyl-N-vanillyl-6-nonenamide) which is a major pungent ingredient in red pepper. We have previously shown that capsaicin selectively induces apoptosis in H-ras-transformed MCF10A human breast epithelial cells but not in their normal cell counter-parts (Int. J. Cancer, 103, 475-482,2003). In this study, we investigated the possible roles of reactive oxygen species (ROS) and Rac1 in capsaicin-induced apoptosis of H-ras MCF10A cells. Selective induction of ROS generation by capsaicin treatment was observed only in H-ras MCF10A cells. Pretreatment of H-ras MCF10A cells with an antioxidant N-acetylcysteine(NAC) significantly reversed capsaicin-induced growth inhibition, suggesting that ROS may mediate the apoptosis of H-ras-transformed cells induced by capsaicin. Rac1 was prominently activated by H-ras in MCF10A cells. Based on the studies using a wild type Rac1 and a domi-nant negative Rac1 constructs, we propose that Rac1 activity is critical for inhibitory effect of capsaicin on growth of H-ras-transformed MCF10A cells possibly through ROS generation.
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