Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms

ABSTRACT The enhancement of anti-leukemia therapy and the treatment of infections caused by multidrug-resistant pathogens are major challenges in healthcare. Although a large arsenal of drugs is available, many of these become ineffective, and as a result, the discovery of new active substances occu...

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Main Authors: Melise Silveira Nunes, Litiérri Razia Garzon, Roberta Filipini Rampelotto, Maísa Kräulich Tizotti, Rosiéli Martini, Aline Locatelli, Marcelo Barbosa, Manfredo Hörner, Rosmari Hörner
Format: Article
Language:English
Published: Universidade de São Paulo 2018-04-01
Series:Brazilian Journal of Pharmaceutical Sciences
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400617&lng=en&tlng=en
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author Melise Silveira Nunes
Litiérri Razia Garzon
Roberta Filipini Rampelotto
Maísa Kräulich Tizotti
Rosiéli Martini
Aline Locatelli
Marcelo Barbosa
Manfredo Hörner
Rosmari Hörner
author_facet Melise Silveira Nunes
Litiérri Razia Garzon
Roberta Filipini Rampelotto
Maísa Kräulich Tizotti
Rosiéli Martini
Aline Locatelli
Marcelo Barbosa
Manfredo Hörner
Rosmari Hörner
author_sort Melise Silveira Nunes
collection DOAJ
description ABSTRACT The enhancement of anti-leukemia therapy and the treatment of infections caused by multidrug-resistant pathogens are major challenges in healthcare. Although a large arsenal of drugs is available, many of these become ineffective, and as a result, the discovery of new active substances occurs. Notably, triazenes (TZCs) have been consolidated as a promising class of compounds, characterized by significant biological activity, especially antiproliferative and antimicrobial properties. The aim of this study is the synthesis and characterization of a new triazenide complex of gold (I), as well as the in vitro assessment of its antiproliferative activity against the K562 cell line (Chronic Myeloid Leukemia), and antibacterial activity against bacterial isolates of biofilm-producing coagulase-negative staphylococci. The combination of TZC with gold metal tends to have a synergistic effect against all biofilm-producing isolates, with Minimum Inhibitory Concentration values (MIC) between 32 and 64 µg mL-1. It has also shown activity against K562 cell line, getting an IC50=4.96 µM. Imatinib mesylate (Glivec) was used as reference, with IC50=3.86 µM. To the best of our knowledge, this study represents the first report of the activity of a TZC complexed with gold ion in the oxidation state (I) against microorganisms that produce biofilm and K562 cells.
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spelling doaj.art-f405ba880b864331beb8dd23c3dc46a92022-12-22T03:14:27ZengUniversidade de São PauloBrazilian Journal of Pharmaceutical Sciences2175-97902018-04-0153410.1590/s2175-97902017000400191S1984-82502017000400617Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganismsMelise Silveira NunesLitiérri Razia GarzonRoberta Filipini RampelottoMaísa Kräulich TizottiRosiéli MartiniAline LocatelliMarcelo BarbosaManfredo HörnerRosmari HörnerABSTRACT The enhancement of anti-leukemia therapy and the treatment of infections caused by multidrug-resistant pathogens are major challenges in healthcare. Although a large arsenal of drugs is available, many of these become ineffective, and as a result, the discovery of new active substances occurs. Notably, triazenes (TZCs) have been consolidated as a promising class of compounds, characterized by significant biological activity, especially antiproliferative and antimicrobial properties. The aim of this study is the synthesis and characterization of a new triazenide complex of gold (I), as well as the in vitro assessment of its antiproliferative activity against the K562 cell line (Chronic Myeloid Leukemia), and antibacterial activity against bacterial isolates of biofilm-producing coagulase-negative staphylococci. The combination of TZC with gold metal tends to have a synergistic effect against all biofilm-producing isolates, with Minimum Inhibitory Concentration values (MIC) between 32 and 64 µg mL-1. It has also shown activity against K562 cell line, getting an IC50=4.96 µM. Imatinib mesylate (Glivec) was used as reference, with IC50=3.86 µM. To the best of our knowledge, this study represents the first report of the activity of a TZC complexed with gold ion in the oxidation state (I) against microorganisms that produce biofilm and K562 cells.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400617&lng=en&tlng=enTriazenes/synthesis/characterization/biological activityTZC/Gold ion complexedChronic myeloid leukemiaAntibacterial activity
spellingShingle Melise Silveira Nunes
Litiérri Razia Garzon
Roberta Filipini Rampelotto
Maísa Kräulich Tizotti
Rosiéli Martini
Aline Locatelli
Marcelo Barbosa
Manfredo Hörner
Rosmari Hörner
Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
Brazilian Journal of Pharmaceutical Sciences
Triazenes/synthesis/characterization/biological activity
TZC/Gold ion complexed
Chronic myeloid leukemia
Antibacterial activity
title Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
title_full Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
title_fullStr Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
title_full_unstemmed Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
title_short Synthesis, characterization and biological activity of a gold(I) triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
title_sort synthesis characterization and biological activity of a gold i triazenide complex against chronic myeloid leukemia cells and biofilm producing microorganisms
topic Triazenes/synthesis/characterization/biological activity
TZC/Gold ion complexed
Chronic myeloid leukemia
Antibacterial activity
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400617&lng=en&tlng=en
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