Rational design, synthesis, and evaluation of novel 2,4-Chloro- and Hydroxy-Substituted diphenyl Benzofuro[3,2-b]Pyridines: Non-intercalative catalytic topoisomerase I and II dual inhibitor
作者:Seojeong Park、Til Bahadur Thapa Magar、Tara Man Kadayat、Hwa Jong Lee、Ganesh Bist、Aarajana Shrestha、Eung-Seok Lee、Youngjoo Kwon
DOI:10.1016/j.ejmech.2017.01.003
日期:2017.2
action for compound 14 which displayed the most strong dual topoisomerase I and II inhibitory activity and antiproliferative activity against HCT15 cell, we performed cleavable complex assay, band depletion assay, comet assay, and competitive EtBr displacement assay. Compound 14 functioned as non-intercalative catalytic topo I and II dual inhibitor. In addition, compound 14 induced apoptosis in HCT15 cells
构象约束的2,4-氯-和羟基取代的二苯基苯并呋喃[3,2- b]系列新化合物对吡啶进行了合理设计和合成。对它们的生物学活性进行了拓扑异构酶I和II抑制活性的评估,以及针对几种人类癌细胞系的抗增殖活性,以开发新型抗癌剂。在中央吡啶的4-位上具有酚部分的大多数化合物在低微摩尔范围内表现出显着的双重拓扑异构酶I和II双重抑制活性,以及强的抗增殖活性。结构活性关系研究表明,中央吡啶4位的酚部分,与中央吡啶2位的氯苯基部分无关,在双重拓扑异构酶抑制活性和抗增殖活性中都起着重要作用。用于化合物14的作用方式研究我们展示了对HCT15细胞最强的双重拓扑异构酶I和II抑制活性和抗增殖活性,我们进行了可裂解的复合物测定,谱带耗竭测定,彗星测定和竞争性EtBr置换测定。化合物14用作非插入式催化拓扑I和II双重抑制剂。另外,化合物14通过增加Bax,减少Bcl-2和增加PARP裂解来诱导HCT15细胞凋亡。