title: DNA binding, photocleavage, and topoisomerase inhibition of functionalized ruthenium(II)-polypyridine complexes.
abstract: The interaction of ruthenium(II)-polypyridyl complexes with DNA has attracted considerable interests during the past two decades. This paper presents some recent progresses in our laboratory on the interaction of Ru(II)-polypyridyl complexes with DNA. The first part describes the effect of modulating the intercalative ligand on the DNA-binding behaviors of the complexes, such as DNA-binding affinity, DNA-binding enantioselectivity, DNA molecular 'light switch' effect, and DNA sequence selectivity. The second part focuses on the DNA photocleavage by the complexes and its mechanism. In the final part, we discuss the topoisomerase inhibition and its mechanism, as well as the antitumor activity of the Ru(II)-polypyridyl complexes.
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China, (fax: +86-20-84035497).
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China, (fax: +86-20-84035497).
authors.forename: Hui
authors.initials: H
authors.lastname: Chao
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China, (fax: +86-20-84035497).
authors.forename: Liang-Nian
authors.initials: LN
authors.lastname: Ji
mesh_terms: D001665:Binding Sites; D002942:Circular Dichroism; D004247:DNA / Q000737:chemistry*; D053837:DNA Cleavage / Q000187:drug effects / Q000528:radiation effects; D007364:Intercalating Agents / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010777:Photochemistry; D011725:Pyridines / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013237:Stereoisomerism; D059004:Topoisomerase I Inhibitors
chemical_list: D007364:Intercalating Agents; D009942:Organometallic Compounds; D011725:Pyridines; D059004:Topoisomerase I Inhibitors; D012428:Ruthenium; D004247:DNA