A new triterpenoid from Panax ginseng exhibits cytotoxicity through p53 and the caspase signaling pathway in the HepG2 cell line

被引:11
作者
Huang J. [1 ,2 ]
Tang X.-H. [1 ]
Ikejima T. [2 ]
Sun X.-J. [3 ]
Wang X.-B. [4 ]
Xi R.-G. [4 ]
Wu L.-J. [1 ,5 ]
机构
[1] Department of Phytochemistry, Shenyang Pharmaceutical University
[2] China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016
[3] School of Chemistry, Qiqihaer University, Qiqihaer 161006
[4] School of Pharmacy, Department of Traditional Chinese Medicine, 210th Hospital of People Liberation Army
[5] Department of Phytochemistry, Shenyang Pharmaceutical University, Shenyang 110016, 49#
关键词
Caspase; Cell cycle; Cytotoxicity; HepG2; p53; Panax ginseng; Triterpenoid;
D O I
10.1007/s12272-001-1159-8
中图分类号
学科分类号
摘要
A new triterpenoid, 20(R),22(ξ),24(S)-dammar-25(26)-ene-3β, 6α,12β,20,22,24-hexanol (1), and three known triterpenoids, β-D-glucopyranoside,(3β,12β)-12,20-dihydroxydammar-24-en-3-yl, 6-acetate (2), 20(R)-ginsenoside Rg3 (3), and 20(R)-ginsenoside Rh2 (4), were isolated from the leaves of Panax ginseng. Their structures were determined by chemical analysis and spectral methods (IR, 1D and 2D NMR, HR-ESI-MS). Compounds 1-4 were exhibited various degrees of cytotoxicity in the human hepatoma cell line, HepG2. Compound 1 had the highest cytotoxic potency, with an IC50 value of 20.1 μM, by stimulating p53-mediated cell cycle arrest at the G1 to S phase transition, leading to apoptosis via activation of the caspase signaling pathway. © 2008 The Pharmaceutical Society of Korea.
引用
收藏
页码:323 / 329
页数:6
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