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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 제28권 제1호
- 발행연도
- 2005.1
- 수록면
- 73 - 80 (8page)
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The effect of capsaicin on apoptotic cell death was investigated in HepG2 human hepatoma cells. Capsaicin induced apoptosis in time- and dose-dependent manners. Capsaicin induced a rapid and sustained increase in intracellular $Ca^{2+}$ concentration, and BAPTA, an intracellular $Ca^{2+}$ chelator, significantly inhibited capsaicin-induced apoptosis. The capsaicin-induced increase in the intracellular $Ca^{2+}$ and apoptosis were not significantly affected by the extracellular $Ca^{2+}$ chelation with EGTA, whereas blockers of intracellular $Ca^{2+}$ release (dantrolene) and phospholipase C inhibitors, U-73122 and manoalide, profoundly reduced the capsaicin effects. Interestingly, treatment with the vanilloid receptor antagonist, capsazepine, did not inhibit either the increased capsaicin-induced $Ca^{2+}$ or apoptosis. Collectively, these results suggest that the capsaicin-induced apoptosis in the HepG2 cells may result from the activation of a PLC-dependent intracellular $Ca^{2+}$ release pathway, and it is further suggested that capsaicin may be valuable for the therapeutic intervention of human hepatomas.
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