TopoisomeraseIIα-IN-4 (F2) is a non-intercalative ATP-competitive inhibitor of human DNA topoisomeraseII, specifically inhibiting TopoIIα with an IC50 value of 3.8 μM and TopoIIβ with an IC50 value of 10.1 μM. It demonstrates significant efficacy in inducing apoptosis and arresting the cell cycle in HepG2 cells. Moreover, TopoisomeraseIIα-IN-4 exhibits robust antitumor effects against various human cancer cell lines, making it a valuable compound for cancer research [1].
TopoisomeraseII inhibitor 3 (Compound 6 h) is an acridone derivative that acts as a Type II DNA topoisomerase (topo II) inhibitor. It specifically inhibits the topo IIα β subtypes, with an IC50 value of 0.17 μM for topo IIα and 0.23 μM for topo IIβ. This compound elicits significant DNA damage and induces apoptosis by triggering the loss of mitochondrial membrane potential [1].
TopoisomeraseI II inhibitor 6(compound 3i)作为topoisomerase I 和 II 的抑制剂显示出优异的效能,其IC50值分别为4.77 µM和 15 µM。此外,该化合物在人类黑色素瘤LOX IMVI癌细胞系中展示了显著的抗增殖效果,IC50值达到了26.7 µM和25.4 µM。
Topoisomerase I II inhibitor 2 (compound 1a) 可显著抑制小鼠模型中的异种移植肿瘤的生长,可用于肝癌治疗。Topoisomerase I II inhibitor 2 是一种DNA 拓扑异构酶 I II 的双重抑制剂。Topoisomerase I II inhibitor 2 是有效的拓扑异构酶抑制剂,对LM9 细胞和Huh7 细胞的 IC50值分别为 6.83 μM 和9.82 μM 。
Topoisomerase I II inhibitor 3 (化合物7) 是拓扑异构酶 I (Topo I)和 II (Topo II)的有效双抑制剂。 通过抑制 PI3K Akt mTOR 信号通路,Topoisomerase I II inhibitor 3抑制细胞增殖、侵袭和迁移,诱导细胞凋亡(apoptosis)。Topoisomerase I II inhibitor 3 在肝癌中具有研究价值。