作者:Nurul H. Abd Karim、Oscar Mendoza、Arun Shivalingam、Alexander J. Thompson、Sushobhan Ghosh、Marina K. Kuimova、Ramon Vilar
DOI:10.1039/c3ra44793f
日期:——
A series of seven new metal complexes (metal = NiII, CuII, PtII and VO2+) with substituted salphen ligands have been prepared and their duplex and G-quadruplex DNA affinities determined. The selectivity of the complexes towards a given DNA topology is dictated by several factors including geometry, overall charge and substitution pattern of the complex. We also show that the two platinum(II)–salphen complexes developed as part of this series are emissive. Confocal microscopy studies were carried out with these two complexes using four different cell lines (CHO, HeLa, U2OS and HepG2). These studies showed that the cell permeability and localization are different for the two probes and highly dependent on the cell line used.
一系列含有取代水杨苷配体的新型金属配合物(金属 = NiII,CuII,PtII 和 VO2+)已经制备完成,并测定了它们与双链和G-四聚体DNA的亲和力。这些配合物对特定DNA拓扑结构的特异性受到多个因素的影响,包括几何形状、总电荷以及配合物的取代模式。本研究还表明,作为系列研究的一部分所开发的两例铂(II)–水杨苷配合物具有发射性质。通过使用四种不同的细胞系(CHO,HeLa,U2OS 和 HepG2)对这两例配合物进行了共聚焦显微镜研究。研究结果显示,这两例探针的细胞渗透性和定位存在差异,且高度依赖于所使用的细胞系。