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 1H, 13C 31P 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.
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11 October 2017
This article has been corrected. One of the author names was given incorrect. Please find in this erratum the correct author name: “Heloiza Diniz Nicolella” that should be regarded as final by the reader.
Abbreviations
- IR:
-
Infrared
- NMR:
-
Nuclear magnetic resonance
- TMS:
-
Tetramethylsilane
- HEPES:
-
4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid, N-(2-hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid)
- HMRS (ESI):
-
High-resolution mass spectra (eletrospray ionization)
- FBS:
-
Fetal bovine serum
- MTT:
-
Methylthiazolyldiphenyl-tetrazolium bromide
- HAM-F10:
-
Nutrient mixture F-10
- DMEM:
-
Dulbecco’s Modified Eagle’s Medium
- XTT:
-
2,3-Bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide
- DMSO:
-
Dimethylsulfoxide
- PBS:
-
Phosphate buffer saline
- RPMI 1640:
-
Roswell Park Memorial Institute 1640 medium
- TTC:
-
2,3,5-Triphenyltetrazolium chloride
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Acknowledgements
The authors wish to thank CAPES, CNPq and FAPEMIG for financial supports and fellowships. This work is a collaboration research project of members of the Rede Mineira de Química (RQ-MG) supported by FAPEMIG (Project: CEX- RED-0010/14).
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This article has been corrected. One of the author names was given incorrect. The corrected author name is: “Heloiza Diniz Nicolella” and should be regarded as final by the reader.
A correction to this article is available online at https://doi.org/10.1007/s10534-017-0049-3.
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de Almeida, A.M., de Oliveira, B.A., de Castro, P.P. et al. 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. Biometals 30, 841–857 (2017). https://doi.org/10.1007/s10534-017-0046-6
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DOI: https://doi.org/10.1007/s10534-017-0046-6