DNA binding, photocleavage and topoisomerase inhibitory activity of polypyridyl ruthenium(II) complexes containing the same ancillary ligand and different main ligands
作者:Xiaojun He、Leli Zeng、Guang Yang、Lingjun Xie、Xiaonan Sun、Lifeng Tan
DOI:10.1016/j.ica.2013.08.010
日期:2013.11
The binding and photocleavage properties of [Ru(phen)(2)L](2+) where phen is 1,10- phenanthroline and L is 2-(4-formylphenyl)imidazo[4,5-f][1,10] phenanthroline (fmp) or 2-(2',3-dibromo-4-formyl-phenyl)imidazo[4,5-f][1,10]-phenanthroline (fmp-2Br)} with regard to DNA were investigated using various biophysical techniques. Results suggest that the two complexes can bind to DNA via an intercalative mode with different affinities and efficiently photocleavage pBR322 DNA in vitro under irradiation. Furthermore, the results of topoisomerase inhibition and DNA strand passage assay reflect that both complexes are efficient dual topoisomerase I and IIa inhibitors. (c) 2013 Elsevier B. V. All rights reserved.
Design, synthesis and biological evaluation of liposome entrapped iridium(III) complexes toward SGC-7901 cells
作者:Yichuan Chen、Yiying Gu、Huiyan Hu、Haimei Liu、Wenlong Li、Chunxia Huang、Jing Chen、Lijuan Liang、Yunjun Liu