On the path to gold: Monoanionic Au bisdithiolate complexes with antimicrobial and antitumor activities.

On the path to gold: Monoanionic Au bisdithiolate complexes with antimicrobial and antitumor activities. J Inorg Biochem. 2019 Oct 22;202:110904 Authors: Sousa SA, Leitão JH, Silva RAL, Belo D, Santos IC, Guerreiro JF, Martins M, Fontinha D, Prudêncio M, Almeida M, Lorcy D, Marques F Abstract The emergence of resistance to antimicrobial and anticancer drugs poses severe threats to public health worldwide, highlighting the need for more efficient treatments. Here, four monoanionic Au bisdithiolate complexes [Au(mnt)2]- (where mnt = 1,1-dicyanoethylene-2,2-dithiolate)(1), [Au(i-mnt)2]- (where i-mnt = 2,2-dicyanoethylene-1,1-dithiolate)(2), [Au(cdc)2]- (where cdc = cyanodithioimido carbonate)(3), and [Au(qdt)2]- (where qdt = quinoxaline-2,3-dithiolate)(4) were screened for their antimicrobial and antitumor activities. Complexes 3 and 4 showed antibacterial activity against Staphylococcus aureus [minimal inhibitory concentration (MIC) = 15.3 and 14.7 μg/mL, respectively]. Complex 3 also caused significant growth inhibition of Candida glabrata (MIC = 7.0 μg/mL). Concentrations of complexes 1-4 up to 125 μg/mL had no growth inhibition activity against Escherichia coli. The cytotoxic activity of complexes 1-4 was evaluated against the ovarian cancer cells A2780 and A2780cisR, sensitive and resistant to cisplatin, respectively. All compounds showed high cytotoxic activities against both tumoral cell lines, ...
Source: Journal of Inorganic Biochemistry - Category: Biochemistry Authors: Tags: J Inorg Biochem Source Type: research