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Optimization of Antiproliferative Properties of Triimine Copper(II) Complexes
Journal of Medicinal Chemistry ( IF 6.8 ) Pub Date : 2024-11-04 , DOI: 10.1021/acs.jmedchem.4c01806
Katarzyna Choroba, Bartosz Zowiślok, Sławomir Kula, Barbara Machura, Anna M. Maroń, Karol Erfurt, Cristiana Marques, Sandra Cordeiro, Pedro V. Baptista, Alexandra R. Fernandes

Cu(II) complexes with 2,2′:6′,2″-terpyridines (terpy) and 2,6-bis(thiazol-2-yl)pyridines (dtpy) with 1- or 2-naphtyl and methoxy-naphtyl were synthesized to elucidate the impact of the triimine core, naphtyl linking mode, and presence of methoxy groups on the antiproliferative activity of [CuCl2(Ln)]. Their antiproliferative effect was analyzed in ovarian (A2780) and colorectal (HCT116) carcinomas and colorectal carcinoma resistant to doxorubicin (HCT116-DoxR) cell lines and in normal human fibroblasts. Among all complexes, the 1- and 2-naphtyl substituted terpy Cu(II) complexes (Cu1a and Cu1b) showed the strongest cytotoxicity, namely, in HCT116-DoxR 2Dcells and were also capable of inducing the loss of cell viability in 3D HCT116-DoxR spheroids. Their intracellular localization, capability to increase reactive oxygen species (ROS), and interaction with DNA (nonintercalative mode) trigger oxidative DNA cleavage leading to cell death by apoptosis and autophagy. Cu1a and Cu1b do not show in vivo toxicity in a chicken embryo and can interact with bovine serum albumin (BSA).

中文翻译:


优化三亚胺铜 (II) 配合物的抗增殖性能



合成了具有 2,2′:6′,2“-三吡啶 (terpy) 和 2,6-双(噻唑-2-基)吡啶 (dtpy) 与 1-或 2-萘基和甲氧基萘基的 Cu(II) 配合物,以阐明三亚胺核心、萘基连接模式和甲氧基的存在对 [CuCl2(Ln)] 抗增殖活性的影响。在卵巢 (A2780) 和结直肠癌 (HCT116) 癌以及对阿霉素 (HCT116-DoxR) 细胞系耐药的结直肠癌以及正常人成纤维细胞中分析了它们的抗增殖作用。在所有复合物中,1-和 2-萘基取代的 terpy Cu(II) 复合物 (Cu1aCu1b) 在 HCT116-DoxR 2D 细胞中表现出最强的细胞毒性,并且还能够诱导 3D HCT116-DoxR 球状体中细胞活力的丧失。它们的细胞内定位、增加活性氧 (ROS) 的能力以及与 DNA 的相互作用(非嵌入模式)触发氧化 DNA 切割,导致细胞凋亡和自噬死亡。Cu1aCu1b 在鸡胚胎中不表现出体内毒性,并且可以与牛血清白蛋白 (BSA) 相互作用。
更新日期:2024-11-04
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