Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance
The emergence and spread of multidrug-resistant bacteria are a global concern. The lack of new antibiotics in the pipeline points to the need for developing new strategies. In this sense, gold(III) complexes (G3Cs) could be a promising alternative due to their recently described antibacterial activi...
| Main Authors: | , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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MDPI
2022
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/14126 |
| _version_ | 1789406379135467520 |
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| author | Ratia, Carlos Sueiro, Sara González Soengas, Raquel María López Ortiz, Fernando Soto, Sara María |
| author_facet | Ratia, Carlos Sueiro, Sara González Soengas, Raquel María López Ortiz, Fernando Soto, Sara María |
| author_sort | Ratia, Carlos |
| collection | DSpace |
| description | The emergence and spread of multidrug-resistant bacteria are a global concern. The lack of new antibiotics in the pipeline points to the need for developing new strategies. In this sense, gold(III) complexes (G3Cs) could be a promising alternative due to their recently described antibacterial activity. The aim of this study was to evaluate the antimicrobial activity of G3Cs alone and in combination with colistin against pathogenic bacteria from veterinary sources. Minimal inhibitory concentration (MIC) values were determined by broth microdilution and compared with clinically relevant antibiotics. Antibiofilm activity was determined by crystal violet staining. Combinations of selected G3Cs with colistin and cytotoxicity in commercial human cell lines were evaluated. Four and seven G3Cs showed antibacterial effect against Gram-negative and Gram-positive strains, respectively, with this activity being higher among Gram-positive strains. The G3Cs showed antibiofilm activity against Gram-negative species at concentrations similar or one to four folds higher than the corresponding MICs. Combination of G3Cs with colistin showed a potential synergistic antibacterial effect reducing concentrations and toxicity of both agents. The antimicrobial and antibiofilm activity, the synergistic effect when combined with colistin and the in vitro toxicity suggest that G3Cs would provide a new therapeutic alternative against multidrug-resistant bacteria from veterinary origin. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-14126 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2022 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-141262023-04-12T19:47:11Z Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance Ratia, Carlos Sueiro, Sara González Soengas, Raquel María López Ortiz, Fernando Soto, Sara María gold(III) complexes antibacterial antibiofilm animal strains MDR-bacteria toxicity The emergence and spread of multidrug-resistant bacteria are a global concern. The lack of new antibiotics in the pipeline points to the need for developing new strategies. In this sense, gold(III) complexes (G3Cs) could be a promising alternative due to their recently described antibacterial activity. The aim of this study was to evaluate the antimicrobial activity of G3Cs alone and in combination with colistin against pathogenic bacteria from veterinary sources. Minimal inhibitory concentration (MIC) values were determined by broth microdilution and compared with clinically relevant antibiotics. Antibiofilm activity was determined by crystal violet staining. Combinations of selected G3Cs with colistin and cytotoxicity in commercial human cell lines were evaluated. Four and seven G3Cs showed antibacterial effect against Gram-negative and Gram-positive strains, respectively, with this activity being higher among Gram-positive strains. The G3Cs showed antibiofilm activity against Gram-negative species at concentrations similar or one to four folds higher than the corresponding MICs. Combination of G3Cs with colistin showed a potential synergistic antibacterial effect reducing concentrations and toxicity of both agents. The antimicrobial and antibiofilm activity, the synergistic effect when combined with colistin and the in vitro toxicity suggest that G3Cs would provide a new therapeutic alternative against multidrug-resistant bacteria from veterinary origin. 2022-12-20T14:18:03Z 2022-12-20T14:18:03Z 2022-11-01 info:eu-repo/semantics/article 2079-6382 http://hdl.handle.net/10835/14126 10.3390/antibiotics11121728 en https://www.mdpi.com/2079-6382/11/12/1728 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | gold(III) complexes antibacterial antibiofilm animal strains MDR-bacteria toxicity Ratia, Carlos Sueiro, Sara González Soengas, Raquel María López Ortiz, Fernando Soto, Sara María Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance |
| title | Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance |
| title_full | Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance |
| title_fullStr | Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance |
| title_full_unstemmed | Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance |
| title_short | Gold(III) Complexes Activity Against Multidrug-Resistant Bacteria Of Veterinary Significance |
| title_sort | gold(iii) complexes activity against multidrug-resistant bacteria of veterinary significance |
| topic | gold(III) complexes antibacterial antibiofilm animal strains MDR-bacteria toxicity |
| url | http://hdl.handle.net/10835/14126 |
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