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Pereira AL, Vasconcelos MA, Andrade AL, Martins IM, Holanda AKM, Gondim ACS, Penha DPS, Bruno KL, Silva FON, Teixeira EH. Antimicrobial and Antibiofilm Activity of Copper-Based Metallic Compounds Against Bacteria Related with Healthcare-Associated Infections. Curr Microbiol 2023; 80:133. [PMID: 36897421 DOI: 10.1007/s00284-023-03232-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 02/15/2023] [Indexed: 03/11/2023]
Abstract
Health care-associated infections (HAIs) contribute to a significant rate of morbidity, mortality, and financial burden on health systems. These infections are caused by multidrug-resistant bacteria that produce biofilm as the main virulence factor. This study aimed to evaluate the effect of the copper-based metallic compounds [Cu(phen)(pz)NO2]Cl (I), [Cu(bpy)(pz)(NO2)]Cl (II), and [Cu(phen)(INA)NO2]Cl (III), where phen = phenanthroline, bpy = bipyridine, pz = pyrazinamide, and INA = isonicotinic acid, against planktonic cells and biofilms formation of Staphylococcus aureus, Staphylococcus epidermidis, and Escherichia coli. The susceptibility of the microorganisms was evaluated by minimum inhibitory concentration (MIC), minimum bacterial concentration (MBC), and time-kill curve assay on planktonic cells. The biofilm formation was evaluated by biomass quantification through staining with crystal violet (CV), colony-forming units (CFUs) quantification, and biofilm metabolic activity determination by XTT assay. The compounds showed bacteriostatic and bactericidal activity on all microorganisms analyzed. Regarding the antibiofilm activity, all metallic compounds were able to reduce significantly the biofilm biomass, colony-forming units, and the metabolic activity of remaining cells, varying the efficient concentration according to the strain analyzed. Interestingly, compounds (I), (II) and (III) did not exhibit DNA degradation activity even with up to 100 µM of these metal complexes. On the other hand, complexes (I) and (III) showed a remarkable capacity to cleave DNA upon addition of glutathione, a reducing agent (CuII/CuI) that leads to reactive oxygen species (ROS) formation. The results presented in this study showed promising antimicrobial and antibiofilm effects.
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Affiliation(s)
- Anna L Pereira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia E Medicina Legal, Universidade Federal Do Ceará, CEP, 60430-270, Fortaleza - CE, Brasil
| | - Mayron A Vasconcelos
- Laboratório Integrado de Biomoléculas, Departamento de Patologia E Medicina Legal, Universidade Federal Do Ceará, CEP, 60430-270, Fortaleza - CE, Brasil.,Universidade Do Estado de Minas Gerais, Unidade Divinópolis, Divinópolis, MG, 35501-179, Brasil.,Faculdade de Ciências Exatas E Naturais, Universidade Do Estado Do Rio Grande Do Norte, 59610-090, Mossoró, RN, Brasil
| | - Alexandre L Andrade
- Laboratório Integrado de Biomoléculas, Departamento de Patologia E Medicina Legal, Universidade Federal Do Ceará, CEP, 60430-270, Fortaleza - CE, Brasil
| | - Israel M Martins
- Laboratório Integrado de Biomoléculas, Departamento de Patologia E Medicina Legal, Universidade Federal Do Ceará, CEP, 60430-270, Fortaleza - CE, Brasil
| | - Alda K M Holanda
- Laboratório de Bioinorgânica, Departamento de Química Orgânica E Inorgânica, Universidade Federal Do Ceará, Campus Do PICI S/N, PO Box 12200, 60440-900, Fortaleza - CE, Brasil
| | - Ana C S Gondim
- Laboratório de Bioinorgânica, Departamento de Química Orgânica E Inorgânica, Universidade Federal Do Ceará, Campus Do PICI S/N, PO Box 12200, 60440-900, Fortaleza - CE, Brasil
| | - Dayana P S Penha
- Laboratório de Química de Coordenação E Polímeros (LQCpol). Instituto de Química, Universidade Federal Do Rio Grande Do Norte, 59012-570, Natal, Brasil
| | - Katherine L Bruno
- Laboratório de Química de Coordenação E Polímeros (LQCpol). Instituto de Química, Universidade Federal Do Rio Grande Do Norte, 59012-570, Natal, Brasil
| | - Francisco O N Silva
- Laboratório de Química de Coordenação E Polímeros (LQCpol). Instituto de Química, Universidade Federal Do Rio Grande Do Norte, 59012-570, Natal, Brasil
| | - Edson H Teixeira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia E Medicina Legal, Universidade Federal Do Ceará, CEP, 60430-270, Fortaleza - CE, Brasil.
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Akbari Z, Montazerozohori M, Hoseini SJ, Naghiha R. Ultrasonic assisted preparation of some new zinc complexes of a new tetradentate Schiff base ligand: thermal analyses data, antimicrobial and DNA cleavage potential. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zahra Akbari
- Department of Chemistry Yasouj University Yasouj Iran
| | | | | | - Reza Naghiha
- Department of Animal Sciences Yasouj University Yasouj Iran
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Xu L, Wang Z, Lu Y, Yan T, Tian H, Li X, Wang S, Sun X, Zhang Z, Dang T, Liu S. Synthesis and proton conductivity of two novel molybdate polymers. NEW J CHEM 2018. [DOI: 10.1039/c8nj03781g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two molybdate polymers H4[Co(phen)3]2[NaO(H2O)(l-Mo8O26)]2·2H2O (1) and H2[TEDA][Mo4O13]·3H2O (2) were synthesized, proton conductivity of 1 was 3.06 × 10−3 S cm−1.
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