Novel series of benzoquinones with high potency against 5-lipoxygenase in human polymorphonuclear leukocytes
作者:Rosanna Filosa、Antonella Peduto、Anja M. Schaible、Verena Krauth、Christina Weinigel、Dagmar Barz、Carmen Petronzi、Ferdinando Bruno、Fiorentina Roviezzo、Giuseppe Spaziano、Bruno D'Agostino、Mario De Rosa、Oliver Werz
DOI:10.1016/j.ejmech.2015.02.042
日期:2015.4
intervention with various inflammatory and allergic diseases. Starting from the natural dual 5-LO/microsomal prostaglandin E2 synthase (mPGES)-1 inhibitor embelin (2,5-dihydroxy-3-undecyl-1,4-benzoquinone, 2) that suppresses 5-LO activity in human primary leukocytes with IC50 = 0.8–2 μM, we synthesized 48 systematically modified derivatives of 2. We modified the 1,4-quinone to 1,2-quinone, mono- or bimethylated
5-Lipoxygenase(5-LO)是各种炎症和过敏性疾病的药理干预措施的潜在目标。从天然的双重5-LO /微粒体前列腺素E 2合酶(mPGES)-1抑制剂embelin(2,5-dihydroxy-3-undecyl-1,4-benzoquinone,2)抑制人类原代白细胞中的5-LO活性。 IC 50 = 0.8–2μM,我们合成了2的48个系统修饰的衍生物。我们修改了1,4-醌1,2-醌,单-或bimethylated的羟基,并且改变所述C11- Ñ -烷基残基(C 4 -至C 16 ñ -烷基或异戊烯基)的2。生物学评估产生的有效类似物优于2和明显的构效关系(SAR)抑制5-LO。有趣的是,转化成1,2-苯醌和羟基部分的二甲基化大大改善了多形核白细胞中的5-LO抑制,而对C2-正烷基衍生物22c(4,5-二甲氧基-3)的抑制则高达2倍,提高了60倍。-十二烷基-1,2-苯醌),IC