A new type of synthetic inhibitor of DNA topoisomerase I and II was examined and several of these derivatives exhibited strong dual activity against these enzymes. This series of compounds showed high cytotoxic activities against cancer cells, but only a limited number of compounds showed any noticeable activity in an in vivo test against murine P388. Non-specific toxicity was observed in the in vivo tests.
研究人员检测了一种新型 DNA 拓扑异构酶 I 和 II 的合成抑制剂,其中几种衍生物对这些酶表现出强大的双重活性。这一系列化合物对癌细胞表现出高细胞毒活性,但只有有限数量的化合物在针对小鼠 P388 的体内测试中表现出明显的活性。在体内试验中观察到非特异性毒性。