Design and synthesis of imidazo[2,1-b]thiazole linked triazole conjugates: Microtubule-destabilizing agents
作者:Siddiq Pasha Shaik、V. Lakshma Nayak、Faria Sultana、A.V. Subba Rao、Anver Basha Shaik、Korrapati Suresh Babu、Ahmed Kamal
DOI:10.1016/j.ejmech.2016.09.060
日期:2017.1
A series of imidazo[2,1-b]thiazole linked triazole conjugates were synthesized by using Huisgen 1,3-dipolar cyclo-addition reaction (click chemistry approach) and evaluated for their antiproliferative activity against some human cancer cell lines like, HeLa (cervical), DU-145 (prostate), A549 (lung), MCF-7 (breast) and HepG2 (liver). Among them, Conjugates 4g and 4h demonstrated a significant antiproliferative
使用Huisgen 1,3-偶极环加成反应(点击化学方法)合成了一系列咪唑并[2,1- b ]噻唑连接的三唑共轭物,并评估了其对某些人类癌细胞系HeLa(宫颈),DU-145(前列腺),A549(肺),MCF-7(乳房)和HepG2(肝脏)。其中,结合物4g和4h具有IC 50对人肺癌细胞(A549)的显着抗增殖作用值分别为0.92和0.78μM。流式细胞仪分析表明,这些缀合物诱导了A549肺癌细胞在G2 / M期的细胞周期停滞。微管蛋白聚合测定和免疫荧光分析表明,这些缀合物分别在无细胞和基于细胞的(A549)实验中有效抑制微管组装。此外,通过Hoechst染色,线粒体膜电位和膜联蛋白V-FITC测定来评估细胞凋亡诱导特性。此外,对促凋亡蛋白Bax和抗凋亡蛋白Bcl-2进行了蛋白质印迹分析,结果表明Bax的上调和Bcl-2的下调表明这些化合物诱导了人肺癌细胞A549的凋亡。