Resveratrol-type oligostilbenes from Iris clarkei antagonize 20-hydroxyecdysone action in the Drosophila melanogaster BII cell line

被引:30
作者
Keckeis, K [1 ]
Sarker, SD [1 ]
Dinan, L [1 ]
机构
[1] Univ Exeter, Hatherly Labs, Dept Biol Sci, Exeter EX4 4PS, Devon, England
关键词
antagonist; resveratrol; stilbene; ecdysteroid; Iris clarkei; Iridaceae; receptor; steroid hormone;
D O I
10.1007/PL00000694
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Bioassay-guided high-performance liquid chromatography analysis of a MeOH extract of Iris clarkei seeds yielded the resveratrol-type oligomeric stilbenes, ampelopsin B and alpha-viniferin, which antagonize the action of 20-hydroxyecdysone; with a 20-hydroxyecdysone concentration of 50 nM, the ED50 values were 33 mu M and 10 mu M, respectively. The structures of these compounds were determined by spectroscopic analysis, notably ultraviolet, liquid secondary ion mass spectrometry and modern one- and two-dimensional nuclear magnetic resonance techniques.
引用
收藏
页码:333 / 336
页数:4
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