Synthesis and Nrf2-inducing activity of the isothiocyanates iberverin, iberin and cheirolin

被引:32
作者
Ernst, Insa M. A. [1 ]
Palani, Kalpana [1 ]
Esatbeyoglu, Tuba [1 ]
Schwarz, Karin [1 ]
Rimbach, Gerald [1 ]
机构
[1] Univ Kiel, Inst Human Nutr & Food Sci, D-24118 Kiel, Germany
关键词
Iberverin; Iberin; Cheirolin; Chemical isothiocyanate synthesis; Nrf2; INDUCTION; ENZYMES; NRF2; SULFORAPHANE; BROCCOLI; SEEDS; BIOTRANSFORMATION; IDENTIFICATION; HYDROLYSIS; EXPRESSION;
D O I
10.1016/j.phrs.2013.01.011
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Numerous studies have reported a potent induction of Nuclear factor (erythroid-derived 2)-like 2 (Nrf2)-dependent gene expression by the isothiocyanate sulforaphane. However, little is known regarding the Nrf2-inducing activities of the lower structure-related sulforaphane homologues, such as iberverin, iberin and cheirolin, which exhibit different sulfur oxidation states. Therefore, in this study we synthesized the isothiocyanates iberverin, iberin and cheirolin with a high yield and purity and determined their Nrf2-inducing activity in NIH3T3 fibroblasts. Iberverin, iberin and cheirolin significantly induced Nrf2 nuclear translocation. The increase in nuclear Nrf2 levels was accompanied by a significant increase in heme oxygenase 1 (HO-1) and gamma-glutamylcysteine synthetase (gamma GCS) mRNA and protein levels. Overall, iberverin, iberin and cheirolin exhibited a similar potency to sulforaphane in inducing Nrf2-dependent gene-expression. Furthermore, our data suggest that the induction of Nrf2 by iberverin, iberin and cheirolin may have occurred via an extracellular signal-related kinase (ERK)-dependent signal-transduction pathway. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:155 / 162
页数:8
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