Cytotoxic effects of the compound cis-tetraammine (oxalato)ruthenium(III) dithionate on K-562 human chronic myelogenous leukemia cells
Carregando...
Data
2014
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Chemotherapy is a common treatment for leukemia. Ruthenium complexes have shown potential utility in
chemotherapy and photodynamic therapy. The identification of new chemotherapeutics agents is critical for further
progress in the treatment of leukemia. Ruthenium complexes generally have lower toxicities compared to cisplatin
attributed to their specific accumulation in cancer tissues. Based on these evidences, in the present work we studied
the cytotoxic activity of the ruthenium(III) compound cis-tetraammine(oxalato)ruthenium(III) dithionate - {cis-[Ru(C 2 O 4 )
(NH 3 ) 4 ] 2 (S 2 O 6 )} against human chronic myelogenous leukemia cells (K-562) tumor cell line. The tested compound
induces cell death in a dose and time dependent manner on K-562 cells. It is found that the effect was improved
linearly while prolonging the incubation time. Compared to the cell cycle profiles of untreated cells, flow cytometric
analysis indicated the sub-G1 arresting effect of ruthenium compound on K-562 cells. In our study, {cis-[Ru(C 2 O 4 )(NH 3 ) 4 ]
2 (S 2 O 6 )} shows a significant increase in tailed cells in any of the concentrations tested compared with negative control.
Consequently, the concentration of {cis-[Ru(C 2 O 4 )(NH 3 ) 4 ] 2 (S 2 O 6 )} might be associated cytotoxicity with direct effect on
K-562 cells DNA. Thus, it can be deducted that ruthenium-based compounds present selectivity to enter both tumor
and normal cells. Additional studies are needed to determine the molecular mechanisms of the active components
and to evaluate the potential in vivo anticancer activity of the cis-tetraammine(oxalato)ruthenium(III) dithionate.
Descrição
Palavras-chave
Apoptosis, Cis-tetraammine(oxalato)ruthenium(III) dithionate, Cytotoxic activity, K-562, Ruthenium(III) compounds, Immunomodulatory activity, Apoptosis
Citação
PEREIRA, Flávia de Castro; LIMA, Aliny Pereira de; VILANOVA-COSTA, Cesar Augusto Sam Tiago; PIRES, Wanessa Carvalho; RIBEIRO, Alessandra de Santana Braga Barbosa; PEREIRA, Lucas Carlos Gomes; PAVANIN, Luiz Alfredo; SANTOS, Wagner Batista dos; SILVEIRA-LACERDA, Elisângela de Paula. Cytotoxic effects of the compound cis-tetraammine(oxalato)ruthenium(III) dithionate on K-562 human chronic myelogenous leukemia cells. SpringerPlus, London, v. 3, n. 301, p. 1-10, 2014.