Application of a Flexible Synthesis of (5<i>R</i>)-Thiolactomycin To Develop New Inhibitors of Type I Fatty Acid Synthase
作者:Jill M. McFadden、Susan M. Medghalchi、Jagan N. Thupari、Michael L. Pinn、Aravinda Vadlamudi、Katherine I. Miller、Francis P. Kuhajda、Craig A. Townsend
DOI:10.1021/jm049389h
日期:2005.2.1
Fatty acid synthase (FAS) catalyzes the synthesis of palmitate from the sequential condensation of an acetyl primer with two carbon units added from malonyl-CoA. Inhibition of the beta-ketoacyl synthase domain of mammalian FAS leads to selective cytotoxicity to various cancer cell lines in vitro and in vivo. Also, inhibitors of FAS can cause reduced food intake and body weight in mice. Naturally occurring
脂肪酸合酶(FAS)催化乙酰基引物与丙二酰辅酶A加成的两个碳单元的顺序缩合,从而合成棕榈酸酯。哺乳动物FAS的β-酮酰基合酶结构域的抑制导致在体外和体内对多种癌细胞的选择性细胞毒性。同样,FAS抑制剂可导致小鼠食物摄入减少和体重下降。天然存在的硫菌素(TLM)被用作开发新型I型FAS抑制剂的模板。使用灵活的合成方法,获得了具有选择性FAS活性并显示出抗癌和减肥效果的TLM结构类似物家族。化合物13a和13d抑制纯FAS(ZR-75-1乳腺癌,IC(50)=50微克/毫升),并在BalbC小鼠中显示出有效的体重减轻(> 5%)。TLM衍生物的另一个子类(23b-d,31a)具有FAS活性(IC(50)=5%),并且对癌细胞具有细胞毒性(IC(50)<38 microg / mL)。最后,第三个子类(16b,29,30)对FAS也有效(IC(50)=