Acridine conjugates of 3-clip-phen: influence of the linker on the synthesis and the DNA cleavage activity of their copper complexes.
To increase the DNA cleavage activity and the cell delivery of the bis(phenanthroline) DNA cleaver "3-Clip-Phen", conjugates between 3-Clip-Phen and the intercalators acridine and 6-chloro-2-methoxyacridine, through amino acid linkers of various length, were prepared. After complexation with CuCl(2), the ability of these conjugates to cleave phiX 174 DNA in the presence of a reductant and air was compared. The results indicated that (i) the coupling of 3-Clip-Phen to an acridine derivative increased the DNA cleavage efficiency of the copper complexes, (ii) the acridine derivatives were more active than 6-chloro-2-methoxyacridine derivatives, (iii) the linker length influenced cleavage efficiency, the highest DNA cleavage activity being obtained for an aminocaproic spacer.
Boldron
Christophe
C
Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France.
Ross
Steven A
SA
Pitié
Marguerite
M
Meunier
Bernard
B
D000166:Acridines / Q000737:chemistry*; D001435:Bacteriophages / Q000187:drug effects* / Q000378:metabolism; D003300:Copper / Q000737:chemistry* / Q000494:pharmacology; D003432:Cross-Linking Reagents / Q000737:chemistry*; D016503:Drug Delivery Systems; D006868:Hydrolysis / Q000187:drug effects; D007364:Intercalating Agents / Q000737:chemistry; D010618:Phenanthrolines / Q000737:chemistry* / Q000493:pharmacokinetics* / Q000494:pharmacology; D013329:Structure-Activity Relationship
D000166:Acridines; C115240:Clip-phen; D003432:Cross-Linking Reagents; D007364:Intercalating Agents; D010618:Phenanthrolines; D003300:Copper