Sulfamethoxazole derivatives complexed with metals: a new alternative against biofilms of rapidly growing mycobacteria

Autor: Josiéli Demetrio Siqueira, Marli Matiko Anraku de Campos, Fallon dos Santos Siqueira, Viviane Drescher Somavilla, Vanessa da Costa Flores, Alencar Kolinski Machado, Priscila Marquezan Copetti, Vanessa Albertina Agertt, Renne de Sousa Dias, Grazielle Guidolin Rossi, Camilla Filippi dos Santos Alves, Michele Rorato Sagrillo, Davi F. Back
Rok vydání: 2018
Předmět:
Zdroj: Biofouling. 34:893-911
ISSN: 1029-2454
0892-7014
Popis: Biofilms are considered important sources of infections on biomedical surfaces, and most infections involving biofilm formation are associated with medical device implants. Therefore, there is an urgent need for new antimicrobial compounds that can combat microbial resistance associated with biofilm formation. In this context, this work aimed to evaluate the antibiofilm action of sulfamethoxazole complexed with Au, Cd, Cu, Ni and Hg on rapidly growing mycobacteria (RGM), as well as to evaluate their safety through cytotoxic assays. The results demonstrate potentiation of the novel compounds in antibiofilm activity, mainly in the complex with Au, which was able to completely inhibit biofilm formation and had the capacity to destroy the biofilm at all the concentrations tested. All cytotoxic data suggest that the majority of sulfamethoxazole metallic derivatives are antimicrobial alternatives, as well as safe molecules, which could be used as potential therapeutic agents for bacterial and biofilm elimination.
Databáze: OpenAIRE