KINASE INHIBITORS FROM POLYGONUM-CUSPIDATUM

被引:224
作者
JAYATILAKE, GS [1 ]
JAYASURIYA, H [1 ]
LEE, ES [1 ]
KOONCHANOK, NM [1 ]
GEAHLEN, RL [1 ]
ASHENDEL, CL [1 ]
MCLAUGHLIN, JL [1 ]
CHANG, CJ [1 ]
机构
[1] PURDUE UNIV, SCH PHARM & PHARM SCI, DEPT MED CHEM & PHARMACOGNOSY, W LAFAYETTE, IN 47907 USA
来源
JOURNAL OF NATURAL PRODUCTS | 1993年 / 56卷 / 10期
关键词
D O I
10.1021/np50100a021
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Bioassay-directed fractionation of a medicinal plant, Polygonum cuspidatum (Polygonaceae), has led to the discovery of a hydroxystilbene, resveratrol [1], as an inhibitor of a protein-tyrosine kinase (p56lck) partially purified from bovine thymus. Both trans and cis isomers of resveratrol possess comparable protein-tyrosine kinase inhibitory activity. Comparison of the IC50 values of resveratrol for protein-tyrosine kinase inhibitory activity with those of piceid (resveratrol-O3-beta-glucoside) [2) and resveratrol-O4'-beta-glucoside [3] shows the requirement of free hydroxyl groups on both phenyl rings for the protein-tyrosine kinase inhibition. Protein kinase C inhibitory analysis suggests the requirements of two free hydroxyl groups on one phenyl ring only.
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页码:1805 / 1810
页数:6
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