Antitumor and antiparasitic activity of novel ruthenium compounds with polycyclic aromatic ligands.

Antitumor and antiparasitic activity of novel ruthenium compounds with polycyclic aromatic ligands. J Inorg Biochem. 2015 Jun 9;150:38-47 Authors: Miserachs HG, Cipriani M, Grau J, Vilaseca M, Lorenzo J, Medeiros A, Comini MA, Gambino D, Otero L, Moreno V Abstract Five novel ruthenium(II)-arene complexes with polycyclic aromatic ligands were synthesized, comprising three compounds of the formula [RuCl(η(6)-p-cym)(L)][PF6], where p-cym=1-isopropyl-4-methylbenzene and L are the bidentate aromatic ligands 1,10-phenanthroline-5,6-dione, 1, 5-amine-1,10-phenanthroline, 4, or 5,6-epoxy-5,6-dihydro-phenanthroline, 5. In the other two complexes [RuCl2(η(6)-p-cym)(L')], the metal is coordinated to a monodentate ligand L', where L' is phenanthridine, 2, or 9-carbonylanthracene, 3. All compounds were fully characterized by mass spectrometry and elemental analysis, as well as NMR and IR spectroscopic techniques. Obtained ruthenium compounds as well as their respective ligands were tested for their antiparasitic and antitumoral activities. Even though all compounds showed lower Trypanosoma brucei activity than the free ligands, they also resulted less toxic on mammalian cells. Cytotoxicity assays on HL60 cells showed a moderate antitumoral activity for all ruthenium compounds. Compound 1 was the most potent antitumoral (IC50=1.26±0.78μM) and antiparasitic (IC50=0.19 ± 0.05μM) agent, showing high selectivity towards the parasites (selectivit...
Source: Journal of Inorganic Biochemistry - Category: Biochemistry Authors: Tags: J Inorg Biochem Source Type: research