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The Pharmaceutical Society of Korea (대한약학회)
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Ginsenoside Rh2 Induces Apoptosis via Activation of Caspase-1 and -3 and Up-Regulation of Bax in Human Neuroblastoma

  • Kim, Young-Soak (KT&G Central Research Institute) ;
  • Jin, Sung-Ha (Korea and Unviersity of Pennsylvania, School of Medicine, Department of Pharmacology)
  • Published : 2004.08.01
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Abstract

In human neuroblastoma SK-N-BE(2) cells undergoing apoptotic death induced by ginsenos-ide Rh2, a dammarane glycoside that was isolated from Panax ginseng C. A. Meyer, caspase-1 and caspase-3 were activated. The expression of Bax was increased in the cells treated with ginsenoside Rh2, whereas Bcl-2 expression was not altered. Treatment with caspase-1 inhibi-tor, Ac-YVAD-CMK, or caspase-3 inhibitor, Z-DEVD-FMK, partially inhibited ginsenoside Rh2-induced cell death but almost suppressed the cleavage of the 116 kDa PARP into a 85 kDa fragment. When the levels of p53 were examined in this process, p53 accumulated rapidly in the cells treated early with ginsenoside Rh2. These results suggest that activation of caspase-1 and -3 and the up-regulation of Bax are required in order for apoptotic death of SK-N-BE(2) cells to be induced by ginsenoside Rh2, and p53 plays an important role in the pathways to promote apoptosis.

Keywords

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