aliphatic ring, exhibited better antiproliferative effects than trichostatin A (TSA) against MCF‐7 and K562 cell lines. In addition to cell‐cycle arrest and apoptosis, cellmigration inhibition was observed in cells treated with compound 1 b. Subsequent western blot analysis revealed that the balance between matrix metalloproteinase 2 (MMP2) and tissue inhibitors of metalloproteinase 1 (TIMP1) determines the
由于这些酶在各种细胞过程中的重要性,因此组蛋白脱乙酰基酶(HDAC)家族是有前途的药物靶标类别。进行了对接研究以鉴定新型HDAC抑制剂。将识别域中的细微修饰引入一系列衣藻多菌素类似物,并将所得支架与各种锌结合域结合。值得注意的是,环(大号-Asu(NHOH) -大号-A3mc6c-大号-Phe- d -Pro,化合物1b的),在脂肪族环的3或5位上具有甲基,比曲古抑菌素A(TSA)对MCF-7和K562细胞系表现出更好的抗增殖作用。除细胞周期停滞和凋亡外,在用化合物1b处理的细胞中还观察到了细胞迁移抑制作用。随后的蛋白质印迹分析表明,基质金属蛋白酶2(MMP2)和组织金属蛋白酶1(TIMP1)抑制剂之间的平衡决定了MCF-7细胞中金属蛋白酶活性的程度,从而调节细胞迁移。通过改变大的帽基团上的疏水取代模式赋予的改善的抑制活性是开发新型HDAC抑制剂的有价值的方法。
Total Syntheses of (±)-Spiroquinazoline, (−)-Alantryphenone, (+)-Lapatin A, and (−)-Quinadoline B
作者:Mingyao Wu、Dawei Ma
DOI:10.1002/anie.201303893
日期:2013.9.9
Stereospecific synthesis of chlamydocin
作者:Jack E. Baldwin、Robert M. Adlington、Christopher R.A. Godfrey、Vipulkumar K. Patel
DOI:10.1016/s0040-4020(01)88010-8
日期:1993.9
A stereospecific synthesis of the cyclic tetrapeptide chlamydocin via free radical homologation from a (S)-2-amino-5-iodopentanoic acid containing cyclic tetrapeptide is described.