PMID- 23964823 OWN - NLM STAT- MEDLINE DCOM- 20131126 LR - 20220408 IS - 1520-4804 (Electronic) IS - 0022-2623 (Linking) VI - 56 IP - 18 DP - 2013 Sep 26 TI - Novel mixed-ligand copper(I) complexes: role of diimine ligands on cytotoxicity and genotoxicity. PG - 7416-30 LID - 10.1021/jm400965m [doi] AB - Novel tetrahedral copper(I) mixed-ligand complexes of the type [Cu(X)(N( intersection)N)(PCN)], 3-10, where X = Cl or Br, N( intersection)N = 2,2'-bipyridine (bipy), 1,10-phenanthroline (phen), 5,6-dimethyl-1,10-phenanthroline (dmp), and dipyrido-[3,2-d:2',3'-f]-quinoxaline (dpq), and PCN = tris-(2-cyanoethyl)phosphine, have been synthetized and characterized by NMR, ESI-MS, and X-ray diffraction on two representative examples, [CuCl(phen)(PCN)].DMF (5.DMF) and [CuBr(dpq)(PCN)].2DMF (10.2DMF). Cu(I) complexes were evaluated for their in vitro antitumor properties against a panel of human cancer cell lines, including cisplatin- and multidrug-resistant sublines. The most effective complex, [CuCl(dpq)(PCN)] (9), exhibited nanomolar cytotoxicity toward both sensitive and resistant cancer cells, but it significantly inhibited the growth of cultured normal cells. In vitro DNA assays and single cell gel electrophoresis revealed that 9 induced DNA fragmentation resulting in cell apoptosis. In parallel, fluorescence in situ hybridization (FISH) micronucleus assay attested high levels of genotoxicity following treatment of peripheral blood lymphocytes with complex 9, suggesting that the potential risk posed by diimine metal complexes should be carefully reconsidered. FAU - Gandin, Valentina AU - Gandin V AD - Dipartimento di Scienze del Farmaco, Universita di Padova , via Marzolo 5, 35131 Padova, Italy. FAU - Porchia, Marina AU - Porchia M FAU - Tisato, Francesco AU - Tisato F FAU - Zanella, Alessandro AU - Zanella A FAU - Severin, Emilia AU - Severin E FAU - Dolmella, Alessandro AU - Dolmella A FAU - Marzano, Cristina AU - Marzano C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130910 PL - United States TA - J Med Chem JT - Journal of medicinal chemistry JID - 9716531 RN - 0 (Aneugens) RN - 0 (Antineoplastic Agents) RN - 0 (Imines) RN - 0 (Ligands) RN - 0 (Organometallic Compounds) RN - 789U1901C5 (Copper) RN - 9007-49-2 (DNA) SB - IM MH - Aneugens/adverse effects/chemistry/metabolism/pharmacology MH - Antineoplastic Agents/adverse effects/chemistry/metabolism/pharmacology MH - Biological Transport MH - Cell Cycle/drug effects MH - Cell Line, Tumor MH - Copper/*chemistry MH - DNA/genetics/metabolism MH - DNA Fragmentation/drug effects MH - Humans MH - Imines/*chemistry MH - Ligands MH - Micronucleus Tests MH - Models, Molecular MH - Molecular Conformation MH - Organometallic Compounds/*adverse effects/chemistry/metabolism/*pharmacology MH - Structure-Activity Relationship EDAT- 2013/08/24 06:00 MHDA- 2013/12/16 06:00 CRDT- 2013/08/23 06:00 PHST- 2013/08/23 06:00 [entrez] PHST- 2013/08/24 06:00 [pubmed] PHST- 2013/12/16 06:00 [medline] AID - 10.1021/jm400965m [doi] PST - ppublish SO - J Med Chem. 2013 Sep 26;56(18):7416-30. doi: 10.1021/jm400965m. Epub 2013 Sep 10.