PMID- 22115828 OWN - NLM STAT- MEDLINE DCOM- 20120522 LR - 20131121 IS - 1873-3344 (Electronic) IS - 0162-0134 (Linking) VI - 106 IP - 1 DP - 2012 Jan TI - Synthesis and cellular impact of diene-ruthenium(II) complexes: a new class of organoruthenium anticancer agents. PG - 126-33 LID - 10.1016/j.jinorgbio.2011.08.027 [doi] AB - The cytostatic properties and cellular effects of novel diene-ruthenium(II) complexes of the types OC-6-13-[RuCl(2)(pp)(cod)] 1-5 (pp=2,2'-bipyridyl (bpy), phen=1,10-phenanthroline (phen), 5,6-dimethylphenanthroline (5,6-Me2phen), dipyrido[3,2-d:2',3'-f]quinoxaline (dpq), ethylenediamine (en)) and OC-6-24-[RuCl(Me(2)N)(2)CS(pp)(cod)](CF(3)SO(3)) 6-8 (pp=phen, 5,6-Me(2)phen, dpq) have been studied for the human cancer cell lines MCF-7 and HT-29 and for Jurkat leukemia cells. CD spectra indicate that 7 causes a massive distortion of the CT DNA B double helix toward the A form. Whereas the neutral complexes 1, 2 and 5 exhibit only modest antiproliferative activity toward MCF-7 and HT-29 cells, the monocationic complexes are significantly more active, in particular the DNA-distorting complex 7 with its IC(50) values of 0.73 and 0.42 muM, respectively. As established by online monitoring with a cell-based sensor chip, this potent 5,6-Me(2)phen complex invokes dose-dependent decreases in MCF-7 cellular respiration and extracellular acidification rates and causes a time-delayed decrease in the impedance of the cell layers, that can be ascribed to cell death. Treatment of Jurkat cells with 7 leads to high concentrations of reactive oxygen species and the induction of apoptosis. The pronounced dose-dependent inhibition of oxygen consumption by isolated mice mitochondria indicates the involvement of an intrinsic mitochondrial pathway in the programmed cell death process. CI - Copyright (c) 2011 Elsevier Inc. All rights reserved. FAU - Kasper, Christine AU - Kasper C AD - Fakultat fur Chemie und Biochemie, Ruhr-Universitat Bochum, Bochum, Germany. FAU - Alborzinia, Hamed AU - Alborzinia H FAU - Can, Suzan AU - Can S FAU - Kitanovic, Igor AU - Kitanovic I FAU - Meyer, Andreas AU - Meyer A FAU - Geldmacher, Yvonne AU - Geldmacher Y FAU - Oleszak, Melanie AU - Oleszak M FAU - Ott, Ingo AU - Ott I FAU - Wolfl, Stefan AU - Wolfl S FAU - Sheldrick, William S AU - Sheldrick WS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110914 PL - United States TA - J Inorg Biochem JT - Journal of inorganic biochemistry JID - 7905788 RN - 0 (Antineoplastic Agents) RN - 0 (DNA, Neoplasm) RN - 0 (Hydrocarbons) RN - 0 (Organometallic Compounds) RN - 0 (Reactive Oxygen Species) RN - 7UI0TKC3U5 (Ruthenium) SB - IM MH - Antineoplastic Agents/chemical synthesis/*chemistry/pharmacology MH - Apoptosis/drug effects MH - Cell Line, Tumor MH - Cell Proliferation/drug effects MH - Cell Respiration/drug effects MH - DNA, Neoplasm/chemistry/genetics MH - Dose-Response Relationship, Drug MH - Extracellular Space/chemistry/drug effects MH - HT29 Cells MH - Humans MH - Hydrocarbons/*chemistry MH - Hydrogen-Ion Concentration/drug effects MH - Intracellular Space/drug effects/metabolism MH - Jurkat Cells MH - Nucleic Acid Conformation/drug effects MH - Organometallic Compounds/chemical synthesis/*chemistry/pharmacology MH - Oxygen Consumption/drug effects MH - Reactive Oxygen Species/metabolism MH - Ruthenium/*chemistry EDAT- 2011/11/26 06:00 MHDA- 2012/05/23 06:00 CRDT- 2011/11/26 06:00 PHST- 2011/06/09 00:00 [received] PHST- 2011/07/30 00:00 [revised] PHST- 2011/08/19 00:00 [accepted] PHST- 2011/11/26 06:00 [entrez] PHST- 2011/11/26 06:00 [pubmed] PHST- 2012/05/23 06:00 [medline] AID - S0162-0134(11)00260-1 [pii] AID - 10.1016/j.jinorgbio.2011.08.027 [doi] PST - ppublish SO - J Inorg Biochem. 2012 Jan;106(1):126-33. doi: 10.1016/j.jinorgbio.2011.08.027. Epub 2011 Sep 14.