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- Title
Lipophilic gold(I) complexes with 1,3,4-oxadiazol-2-thione or 1,3-thiazolidine-2-thione moieties: synthesis and their cytotoxic and antimicrobial activities.
- Authors
Almeida, Angelina; Oliveira, Bruno; Castro, Pedro; Mendonça, Camille; Furtado, Ricardo; Nicolella, Heloiza; Silva, Vânia; Diniz, Cláudio; Tavares, Denise; Silva, Heveline; Almeida, Mauro
- Abstract
Novel lipophilic gold(I) complexes containing 1,3,4-oxadiazol-2-thione or 1,3-thiazolidine-2-thione derivatives were synthesized and characterized by IR, high resolution mass spectrometry, and H, C P NMR. The cytotoxicity of the compounds was evaluated considering cisplatin and/or auranofin as reference in different tumor cell lines: colon cancer (CT26WT), metastatic skin melanoma (B16F10), breast adenocarcinoma (MCF-7), cervical carcinoma (HeLa), glioblastoma (M059 J). Normal human lung fibroblasts (GM07492-A) and kidney normal cell (BHK-21) were also evaluated. The gold(I) complexes were more active than their respective free ligands and cisplatin. Furthermore, antibacterial activity was evaluated against Gram-positive bacteria Staphylococcus aureus ATCC 25213, Staphylococcus epidermidis ATCC 12228 and Gram-negative bacteria Escherichia coli ATCC 11229 and Pseudomonas aeruginosa ATCC 27853 and expressed as the minimum inhibitory concentration (MIC). The complexes exhibited lower MIC values when compared to the ligands and chloramphenicol against Gram-positive bacteria and Gram-negative bacteria. Escherichia coli was sensitive one to the action of gold(I) complexes.
- Subjects
GOLD compound synthesis; LIPOPHILICITY; OXADIAZOLES; MOIETIES (Chemistry); ANTI-infective agents
- Publication
BioMetals, 2017, Vol 30, Issue 6, p841
- ISSN
0966-0844
- Publication type
Article
- DOI
10.1007/s10534-017-0046-6