reported. The compounds were investigated for their antiproliferative activity against the C6 rat glial cell line. Two compounds, 1b and 1h, were found to be potent cytotoxic agents against glioma cells and exerted selective TopoII inhibitory activity. Furthermore, the compounds induced alterations in reactive oxygen species levels as measured by DCFDA assay and were found to induce cell cycle arrest
报道了作为人类拓扑异构酶 II (TopoII) 催化
抑制剂的
二氢吡唑并 [1,5-c]
喹唑啉 (1a-h) 的设计和合成。研究了这些化合物对 C6 大鼠神经胶质
细胞系的抗增殖活性。发现两种化合物 1b 和 1h 是针对神经胶质瘤细胞的有效细胞毒性剂,并发挥选择性 TopoII 抑制活性。此外,通过 DCFDA 测定法测量,这些化合物诱导活性氧
水平的改变,并且发现在较低浓度下诱导细胞周期停滞在 G1 期,在较高浓度下诱导细胞凋亡。分子模型进一步证实了选定的研究分子与 TopoII 的相互作用。