EMODIN, A PROTEIN TYROSINE KINASE INHIBITOR FROM POLYGONUM-CUSPIDATUM

被引:156
作者
JAYASURIYA, H [1 ]
KOONCHANOK, NM [1 ]
GEAHLEN, RL [1 ]
MCLAUGHLIN, JL [1 ]
CHANG, CJ [1 ]
机构
[1] PURDUE UNIV,DEPT MED CHEM & PHARMACOGNOSY,W LAFAYETTE,IN 47907
来源
JOURNAL OF NATURAL PRODUCTS | 1992年 / 55卷 / 05期
关键词
D O I
10.1021/np50083a026
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Bioassay-directed fractionation of a Chinese medicinal plant, Polygonum cuspidatum (Polygonaceae), has led to the discovery of an anthraquinone, emodin [1], as a strong inhibitor of a protein tyrosine kinase (p56lck) partially purified from bovine thymus. Comparison of the IC50 values of emodin for protein tyrosine kinase inhibitory activity with physcion [2] and emodin-O8-D-glucoside [3], also isolated from the same plant, reveal the importance of the hydroxyl groups at C-6 and C-8 for the observed activity.
引用
收藏
页码:696 / 698
页数:3
相关论文
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