Type II topoisomeraseinhibitor 1 可用于抗菌领域。Type II topoisomeraseinhibitor 1 是大肠杆菌DNA 旋转酶的选择性抑制剂,IC50值为 1.7 nM,并能与 Asp73 残基形成氢键。Type II topoisomeraseinhibitor 1 抑制拓扑异构酶 IV 的活性,IC50值为 0.98 μM。
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 II 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].
Topoisomerase I inhibitor 5 is an efficient inhibitor of topoisomerase I, with an IC50 value. It effectively disrupts DNA and inhibits the activity of topoisomerase I. Moreover, it can induce apoptosis in MCF-7 cells and arrest the cell cycle at the G1 phase. Topoisomerase I inhibitor 5 also exhibits potency in reversing P-gp-mediated resistance to Adriamycin [1].
Topoisomerase I inhibitor 4 (compound 7a) is a potent inhibitor of topoisomerase I activity. It effectively inhibits the proliferation of various cancer cell lines including HepG2, A549, MCF-7, and HeLa, with IC50 values of 1.20 μM, 2.09 μM, 1.56 μM, and 1.92 μM, respectively. Thus, Topoisomerase I inhibitor 4 holds promise for cancer research applications [1].
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。
Topoisomerase I inhibitor 7 (Compound 8) 是有效的Topoisomerase I 抑制剂。Topoisomerase I inhibitor 7 显著抑制肿瘤生长(高达 79%)。在接受 P388 淋巴瘤移植的小鼠模型中,Topoisomerase I inhibitor 7延长了小鼠寿命(153%)。
Topoisomerase II inhibitor 4 (compound E17) 是一种拓扑异构酶 II (Topoisomerase II) 的有效抑制剂。Topoisomerase II inhibitor 4 具有抗肿瘤效果,能够将阻滞细胞周期于 G2 M 期,抑制癌细胞增殖并表现出细胞毒性。