Anti-tumor-promoting activity of the diterpene from Excoecaria agallocha.: II

被引:36
作者
Konoshima, T [1 ]
Konishi, T
Takasaki, M
Yamazoe, K
Tokuda, H
机构
[1] Kyoto Pharmaceut Univ, Yamashina Ku, Kyoto 6078414, Japan
[2] Kyoto Prefectural Univ Med, Kamigyo Ku, Kyoto 6020841, Japan
关键词
anti-tumor-promoter; secolabdane-type diterpene; Excoecaria agallocha; two-stage carcinogenesis; Euphorbiaceae;
D O I
10.1248/bpb.24.1440
中图分类号
R9 [药学];
学科分类号
1007 [药学];
摘要
Eight new diterpenoids (1-8) have been isolated from the wood of Excoecaria agallocha (Euphorbiaceae) and their inhibitory effects on the induction of Epstein-Barr virus early antigen (EBV-EA) in Raji cells were examined to search for potent anti-tumor-promoters from natural resources. Of these compounds, the secolabdane-type diterpenoid, compound 7 exhibited a remarkable inhibitory effect on EBV-EA induction, and a significant anti-tumor-promoting effect in the mouse two-stage carcinogenesis test using 7,12-dimethylbenz[a]anthracene and 12-O-tetradecanoyl-phorbol-13-acetate.
引用
收藏
页码:1440 / 1442
页数:3
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