Antiparasitic activities of novel ruthenium/lapachol complexes

被引：61
作者：
Barbosa, Marilia I. F. [1 ]
Correa, Rodrigo S. [1 ]
de Oliveira, Katia Mara [1 ]
Rodrigues, Claudia [1 ]
Ellena, Javier [2 ]
Nascimento, Otaciro R. [2 ]
Rocha, Vinicius P. C. [3 ]
Nonato, Fabiana R. [3 ]
Macedo, Tais S. [3 ]
Barbosa-Filho, Jose Maria [5 ]
Soares, Milena B. P. [3 ,4 ]
Batista, Alzir A. [1 ]
机构：
[1] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
[3] Fiocruz MS, Lab Engn Tecidual & Imunofarmacol, BR-40296710 Salvador, BA, Brazil
[4] Hosp Sao Rafael, Ctr Biotecnol & Terapia Celular, BR-41253790 Salvador, BA, Brazil
[5] Univ Fed Paraiba, Lab Tecnol Farmaceut, BR-58051900 Joao Pessoa, Paraiba, Brazil
来源：
JOURNAL OF INORGANIC BIOCHEMISTRY | 2014年 / 136卷
基金：
巴西圣保罗研究基金会;
关键词：
Ruthenium (II) and (III) lapachol complex; Cytotoxicity; Antileishmanial and antiplasmodial activities; CELL-CYCLE ARREST; RUTHENIUM(II) COMPLEXES; CUTANEOUS LEISHMANIASIS; ANTIMALARIAL-DRUGS; CYTOTOXIC ACTIVITY; IN-VITRO; LAPACHOL; DERIVATIVES; AGENTS; APOPTOSIS;
D O I：
10.1016/j.jinorgbio.2014.03.009
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The present study describes the synthesis, characterization, antileishmanial and antiplasmodial activities of novel diimine/(2,2 '-bipyridine (bipy), 1,10-phenanthroline (phen), 4,4 '-methylbipyridine (Me-bipy) and 4,4 '-methoxybipyridine (MeO-bipy)/phosphine/ruthenium(II) complexes containing lapachol (Lap, 2-hydroxy-3-(3-33 methyl-2-buthenyl)-1,4-naphthoquinone) as bidentate ligand. The [Ru(Lap)(PPh3)(2)(bipy)]PF6 (1), [Ru(Lap)(PPh3)(2)(Me-bipy)]PF6 (2), [Ru(Lap)(PPh3)(2)(MeO-bipy)]PF6 (3) and[Ru(Lap)(PPh3)(2)(Phen)]PF6 (4) complexes, PPh3 = triphenylphospine, were synthesized from the reactions of cis-[RuCl2(PPh3)(2)(X-bipy)] or cis-[RuCl2(PPh3)(2)(phen)], with lapachol. The [RuCl2(Lap)(dppb)] (5) [dppb = 1,4-bis(diphenylphosphine)butane] was synthesized from the mer-[RuCl3(dppb)(H2O)] complex. The complexes were characterized by elemental analysis, molar conductivity, infrared and UV-vis spectroscopy, P-31{H-1) and H-1 NMR, and cyclic voltammetry. The Ru(III) complex, [RuCl2(Lap)(dppb)], was also characterized by the EPR technique. The structure of the complexes [Ru(Lap)(PPh3)(2)(bipy)]PF6 and [RuCl2(LaP)(dPpb)] was elucidated by X-ray diffraction. The evaluation of the antiparasitic activities of the complexes against-Leishmania amazonensis and Plasmodium falciparum demonstrated that lapachol-ruthenium complexes are more potent than the free lapachol. The [RuCl2(Lap)(dppb)] complex is the most potent and selective antiparasitic compound among the five new ruthenium complexes studied in this work, exhibiting an activity comparable to the reference drugs. (C) 2014 Elsevier Inc. All rigts reserved.
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页码：33 / 39
页数：7
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