Design, synthesis, molecular modeling and anti-proliferative evaluation of novel quinoxaline derivatives as potential DNA intercalators and topoisomerase II inhibitors
作者:M.K. Ibrahim、M.S. Taghour、A.M. Metwaly、A. Belal、A.B.M. Mehany、M.A. Elhendawy、M.M. Radwan、A.M. Yassin、N.M. El-Deeb、E.E. Hafez、M.A. ElSohly、I.H. Eissa
DOI:10.1016/j.ejmech.2018.06.004
日期:2018.7
New series of [1,2,4]triazolo [4,3-a]quinoxaline and bis([1,2,4]triazolo)[4,3-a:3′,4′-c]quinoxaline derivatives have been designed, synthesized and biologically evaluated for their cytotoxic activities against three tumor cell lines (HePG-2, Hep-2 and Caco-2). Compounds 16e, 21, 25a and 25b exhibited the highest activities against the examined cell lines with IC50 values ranging from 0.29 to 0.90 μM
[1,2,4]三唑[4,3- a ]喹喔啉和双([1,2,4]三唑] [4,3- a:3',4'- c ]喹喔啉衍生物的新系列设计,合成和生物学评估了它们对三种肿瘤细胞系(HePG-2,Hep-2和Caco-2)的细胞毒活性。化合物16 é,21,25一个和25 b表现出对与IC所检查的细胞系的最高活动50个值范围从0.29至0.90μM相媲美的多柔比星(IC 50范围从0.51到0.73μM)。进一步评估了活性最高的成员的拓扑异构酶II(Topo II)抑制活性和DNA嵌入亲和力,作为其抗增殖活性的潜在机制。有趣的是,Topo II抑制和DNA结合测定的结果与细胞毒性数据一致,其中最有效的抗增殖衍生物表现出良好的Topo II抑制活性和DNA结合亲和力,与阿霉素相当。此外,活性最高的化合物25 a导致细胞周期停滞在G2 / M期,并诱导Caco-2细胞凋亡。此外,此外,针对DNA-Topo