作者:Waylon M. Weber、Lucy A. Hunsaker、C. Nathaniel Roybal、Ekaterina V. Bobrovnikova-Marjon、Steve F. Abcouwer、Robert E. Royer、Lorraine M. Deck、David L. Vander Jagt
DOI:10.1016/j.bmc.2005.11.035
日期:2006.4
which were more active than curcumin. Enone analogues in the series with the 5-carbon spacer were especially active, including members that contained heterocyclic rings. 1,5-Bis(3-pyridyl)-1,4-pentadien-3-one was the most active analogue, IC50 = 3.4 +/- 0.2 microM. The most active analogues retain the enone functionality, although some analogues devoid of the enone functionality exhibited activity. The
转录因子NFkappaB(NFkappaB)在许多癌细胞中被上调,在这些癌细胞中,转录因子NFkappaB促进了生存前的抗凋亡状态的发展。天然产物姜黄素是已知的NFkappaB激活抑制剂。使用Panomics的NFkappaB Reporter稳定细胞系,将姜黄素的烯酮类似物与姜黄素抑制TNFalpha诱导的NFkappaB活化的能力进行了比较。所测试的烯酮包括在芳香环之间保留7碳间隔基的姜黄素类似物,具有5碳间隔基的类似物和具有3碳间隔基的类似物。在所有三个系列中均鉴定出NFkappaB激活的抑制剂,其中许多活性比姜黄素更高。具有5个碳原子间隔基的系列中的烯酮类似物特别活跃,包括含有杂环的成员。1,5-双(3-吡啶基)-1,4-戊二烯-3-酮是活性最高的类似物,IC50 = 3.4 +/- 0.2 microM。尽管一些缺乏烯酮功能的类似物表现出活性,但最活跃的类似物保留了烯酮功能。作为