DNA Binding and Photocleavage Properties, Cellular Uptake and Localization, and in-Vitro Cytotoxicity of Dinuclear Ruthenium(II) Complexes with Varying Lengths in Bridging Alkyl Linkers
作者:Ping Liu、Bao-Yan Wu、Jin Liu、Yong-Cheng Dai、You-Jun Wang、Ke-Zhi Wang
DOI:10.1021/acs.inorgchem.5b01934
日期:2016.2.15
characterized. Their calf thymus DNA-binding and plasmid DNA photocleavage behaviors are comparatively studied with a previously reported, six-methylene-containing analog by absorption and luminescence spectroscopy, steady-state emission quenching by [Fe(CN)6]4–, DNA competitive binding with ethidium bromide, DNA viscosity measurements, DNA thermal denaturation, and agarose gel electrophoresis analyses
合成并表征了两个新的双核Ru(II)聚吡啶基络合物,它们在其桥连接头中包含三个和十个亚甲基链。通过吸收和发光光谱,通过[Fe(CN)6 ] 4稳态发射猝灭,用以前报道的含六亚甲基的类似物对它们的小牛胸腺DNA结合和质粒DNA的光解行为进行了比较研究。,DNA与溴化乙锭的竞争性结合,DNA粘度测量,DNA热变性和琼脂糖凝胶电泳分析。还对三种复合物进行了应用密度泛函理论(DFT)方法的理论计算,以了解实验观察到的DNA结合特性。结果表明,两种复合物部分地插入DNA的碱基对之间。细胞摄取和共定位研究表明,复合物可以有效进入HeLa细胞并定位在溶酶体内。通过MTT细胞毒性分析研究了复合物对HeLa和MCF-7肿瘤细胞的体外抗肿瘤活性。高含量分析(HCA)是一种新方法,也用于评估这三种复合物的细胞毒性,凋亡和细胞周期停滞。