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Teodoru DV, Olar R, Maxim C, Bacalum M, Răileanu M, Iorgulescu EE, Vasile Scăețeanu G, Badea M. Copper(II) Methacrylate Complexes with Imidazole Derivatives-Structural, Spectral and Antitumor Features. Molecules 2024; 29:4010. [PMID: 39274858 DOI: 10.3390/molecules29174010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/16/2024] [Accepted: 08/21/2024] [Indexed: 09/16/2024] Open
Abstract
A series of five novel copper(II) complexes with imidazole derivatives having general core Cu(R-Im)2(Macr)2 (Macr = methacrylate anion; R-Im = 2-methylimidazole/2-MeIm, 4-methylimidazole/4-MeIm, 2-ethylimidazole/2-EtIm, 2-isopropylimidazole/2-iPrIm) has been synthesized and characterized by elemental analysis, Fourier Transform Infrared spectroscopy (FTIR), electronic reflectance spectroscopy, cyclic voltammetry, thermal analysis and single crystal X-ray diffraction. All complexes crystalize in a monoclinic crystal system and form a complex supramolecular network developed through hydrogen bonds. The stereochemistry of the copper ion is distorted octahedral except for the compound with 4-methylimidazole for which the geometry is square-pyramidal. The imidazole derivatives act as unidentate while methacrylate ions are chelated except for compound with 4-methylimidazole where is unidentate. All ligands and complexes inhibited B16 murine melanoma cells in a micromolar range, but the complex with 2-isopropylimidazole was more active. Furthermore, all species do not affect the healthy BJ cells in the concentration range used for assays.
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Affiliation(s)
- Dragoș Vlad Teodoru
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Rodica Olar
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Cătălin Maxim
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Mihaela Bacalum
- Department of Life and Environmental Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Str., 077125 Măgurele, Romania
| | - Mina Răileanu
- Department of Life and Environmental Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Str., 077125 Măgurele, Romania
| | - Emilia-Elena Iorgulescu
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Gina Vasile Scăețeanu
- Department of Soil Sciences, Faculty of Agriculture, University of Agronomic Sciences and Veterinary Medicine, 59 Mărăști Str., 011464 Bucharest, Romania
| | - Mihaela Badea
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
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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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Olar R, Maxim C, Badea M, Bacalum M, Raileanu M, Avram S, Korošin NČ, Burlanescu T, Rostas AM. Antiproliferative Copper(II) Complexes Bearing Mixed Chelating Ligands: Structural Characterization, ROS Scavenging, In Silico Studies, and Anti-Melanoma Activity. Pharmaceutics 2022; 14:pharmaceutics14081692. [PMID: 36015318 PMCID: PMC9416163 DOI: 10.3390/pharmaceutics14081692] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/29/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Melanoma is a skin cancer characterized by rapid growth and spread for which current therapies produce both resistance and increased risk of infection. To develop new anti-melanoma biocompatible species, the series of complexes Cu(N-N)(bzac)(X)⋅nH2O (N-N: 1,10-phenanthroline/2,2′-bipyridine, Hbzac: 1-phenyl-1,3-butanedione, X: NO3/ClO4, and n = 0, 1) was studied. Single-crystal X-ray diffraction revealed a mononuclear structure for all complexes. The ability of the complexes to scavenge or trap reactive oxygen species such as O2⋅− and HO⋅ was proved by EPR spectroscopy experiments. All complexes inhibited B16 murine melanoma cells in a dose-dependent and nanomolar range, but the complexes with 1,10-phenanthroline were more active. Moreover, comparative activity on B16 and healthy BJ cells revealed a therapeutic index of 1.27–2.24. Bioinformatic methods were used to calculate the drug-likeness, pharmacokinetic, pharmacogenomic, and pharmacodynamic profiles of the compounds. The results showed that all compounds exhibit drug-likeness features, as well as promising absorption, distribution, metabolism, and excretion (ADME) properties, and no toxicity. The pharmacodynamics results showed that the neutral species appear to be good candidates for antitumor molecular targets (Tyrosyl-DNA phosphodiesterase 1, DNA-(apurinic or apyrimidinic site) lyase or Kruppel-like factor 5). Furthermore, the pharmacogenomic results showed a good affinity of the copper(II) complexes for the human cytochrome. These results recommend complexes bearing 1,10-phenanthroline as good candidates for developing drugs to melanoma alternative treatment.
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Affiliation(s)
- Rodica Olar
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
- Correspondence: (R.O.); (S.A.)
| | - Catalin Maxim
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Mihaela Badea
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Mihaela Bacalum
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Department of Life and Environmental Physics, 30 Reactorului Str., 077125 Magurele-Ilfov, Romania
| | - Mina Raileanu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Department of Life and Environmental Physics, 30 Reactorului Str., 077125 Magurele-Ilfov, Romania
- Faculty of Physics, Department of Electricity, Solid State and Biophysics, University of Bucharest, 405A Atomiștilor Str., 077125 Magurele-Ilfov, Romania
| | - Speranta Avram
- Faculty of Biology, Department of Anatomy, Animal Physiology and Biophysics, University of Bucharest, 91-95, Splaiul Independenței, 050095 Bucharest, Romania
- Correspondence: (R.O.); (S.A.)
| | - Nataša Čelan Korošin
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Teodora Burlanescu
- Laboratory of Optical Processes in Nanostructure Materials, National Institute of Materials Physics, 405A Atomiștilor Str., 077125 Magurele-Ilfov, Romania
| | - Arpad Mihai Rostas
- Laboratory of Atomic Structures and Defects in Advanced Materials, LASDAM, National Institute of Materials Physics, 405A Atomiștilor Str., 077125 Magurele-Ilfov, Romania
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Metal Complexes—A Promising Approach to Target Biofilm Associated Infections. Molecules 2022; 27:molecules27030758. [PMID: 35164021 PMCID: PMC8838073 DOI: 10.3390/molecules27030758] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/19/2022] [Accepted: 01/23/2022] [Indexed: 02/06/2023] Open
Abstract
Microbial biofilms are represented by sessile microbial communities with modified gene expression and phenotype, adhered to a surface and embedded in a matrix of self-produced extracellular polymeric substances (EPS). Microbial biofilms can develop on both prosthetic devices and tissues, generating chronic and persistent infections that cannot be eradicated with classical organic-based antimicrobials, because of their increased tolerance to antimicrobials and the host immune system. Several complexes based mostly on 3D ions have shown promising potential for fighting biofilm-associated infections, due to their large spectrum antimicrobial and anti-biofilm activity. The literature usually reports species containing Mn(II), Ni(II), Co(II), Cu(II) or Zn(II) and a large variety of multidentate ligands with chelating properties such as antibiotics, Schiff bases, biguanides, N-based macrocyclic and fused rings derivatives. This review presents the progress in the development of such species and their anti-biofilm activity, as well as the contribution of biomaterials science to incorporate these complexes in composite platforms for reducing the negative impact of medical biofilms.
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Ruta LL, Farcasanu IC, Bacalum M, Răileanu M, Rostas AM, Daniliuc C, Chifiriuc MC, Măruțescu L, Popa M, Badea M, Iorgulescu EE, Olar R. Biological Activity of Triazolopyrimidine Copper(II) Complexes Modulated by an Auxiliary N-N-Chelating Heterocycle Ligands. Molecules 2021; 26:6772. [PMID: 34833864 PMCID: PMC8620715 DOI: 10.3390/molecules26226772] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/20/2021] [Accepted: 11/05/2021] [Indexed: 01/31/2023] Open
Abstract
Novel complexes of type [Cu(N-N)(dmtp)2(OH2)](ClO4)2·dmtp ((1) N-N: 2,2'-bipyridine; (2) L: 1,10-phenantroline and dmtp: 5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine) were designed in order to obtain biologically active compounds. Complexes were characterized as mononuclear species that crystallized in the space group P-1 of the triclinic system with a square pyramidal geometry around the copper (II). In addition to the antiproliferative effect on murine melanoma B16 cells, complex (1) exhibited low toxicity on normal BJ cells and did not affect membrane integrity. Complex (2) proved to be a more potent antimicrobial in comparison with (1), but both compounds were more active in comparison with dmtp-both against planktonic cells and biofilms. A stronger antimicrobial and antibiofilm effect was noticed against the Gram-positive strains, including methicillin-resistant Staphylococcus aureus (MRSA). Both electron paramagnetic resonance (EPR) and Saccharomyces cerevisiae studies indicated that the complexes were scavengers rather than reactive oxygen species promoters. Their DNA intercalating capacity was evidenced by modifications in both absorption and fluorescence spectra. Furthermore, both complexes exhibited nuclease-like activity, which increased in the presence of hydrogen peroxide.
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Affiliation(s)
- Lavinia L. Ruta
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania;
| | - Ileana C. Farcasanu
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania;
| | - Mihaela Bacalum
- Department of Life and Environmental Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Str., 077125 Măgurele, Romania; (M.B.); (M.R.)
| | - Mina Răileanu
- Department of Life and Environmental Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Str., 077125 Măgurele, Romania; (M.B.); (M.R.)
- Department of Electricity, Solid State and Biophysics, Faculty of Physics, University of Bucharest, 405A Atomiştilor Str., 077125 Măgurele, Romania
| | - Arpad Mihai Rostas
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, 405A Atomiştilor Str., 077125 Măgurele, Romania;
| | - Constantin Daniliuc
- Organisch-Chemisches Institute, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany;
| | - Mariana Carmen Chifiriuc
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor Str., 060101 Bucharest, Romania; (M.C.C.); (L.M.); (M.P.)
| | - Luminița Măruțescu
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor Str., 060101 Bucharest, Romania; (M.C.C.); (L.M.); (M.P.)
| | - Marcela Popa
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor Str., 060101 Bucharest, Romania; (M.C.C.); (L.M.); (M.P.)
| | - Mihaela Badea
- Department of Inorganic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania;
| | - Emilia Elena Iorgulescu
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania;
| | - Rodica Olar
- Department of Inorganic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania;
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