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Cytotoxic prenylated flavones from the stem and root bark of Daphne giraldii
被引:22
|作者:
Sun, Qian
[1
,2
]
Wang, Di
[1
,2
]
Li, Fei-Fei
[1
,2
,3
]
Yao, Guo-Dong
[4
]
Li, Xue
[5
]
Li, Ling-Zhi
[1
,2
]
Huang, Xiao-Xiao
[1
,2
]
Song, Shao-Jiang
[1
,2
]
机构:
[1] Shenyang Pharmaceut Univ, Sch Tradit Chinese Mat Med, Shenyang 110016, Peoples R China
[2] Shenyang Pharmaceut Univ, Minist Educ, Key Lab Struct Based Drug Design & Discovery, Shenyang 110016, Peoples R China
[3] Yangtze River Pharmaceut Grp Co Ltd, Taizhou 225300, Peoples R China
[4] Shenyang Pharmaceut Univ, China Japan Res Inst Med Pharmaceut Sci, Shenyang 110016, Peoples R China
[5] Shenyang Pharmaceut Univ, Sch Life Sci & Biopharmaceut, Shenyang 110016, Peoples R China
关键词:
Daphne giraldii;
Flavone;
Cytotoxicity;
Apoptosis;
CONSTITUENTS;
MECHANISM;
D O I:
10.1016/j.bmcl.2016.07.002
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
Three new prenylated flavones (1-3), along with three known analogues (4-6), were isolated from the stem and root bark of Daphne giraldii. Their structures were determined by comprehensive NMR and HRESIMS spectroscopic data analyses. The absolute configurations of compounds 2 and 3 were assigned by optical rotation comparison, CD and [Rh-2(OCOCF3)(4)]-induced CD spectral methods. The in vitro cytotoxicity experiments carried out involving five cancer cell lines (U251, A549, HepG2, MCF-7 and Bcap37) showed that 2 markedly inhibited the proliferation of all tested cells with IC50 values ranging from 4.26 to 20.82 mu M. The preliminary structure-activity relationships of these flavones are discussed. In addition, compound 2 was found to effectively induce apoptosis in HepG2 cells according to a flow cytometry analysis. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:3968 / 3972
页数:5
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