1
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El-Sayed DS, Tawfik EM, Elhusseiny AF, El-Dissouky A. A perception into binary and ternary copper (II) complexes: synthesis, characterization, DFT modeling, antimicrobial activity, protein binding screen, and amino acid interaction. BMC Chem 2023; 17:55. [PMID: 37316928 DOI: 10.1186/s13065-023-00962-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/25/2023] [Indexed: 06/16/2023] Open
Abstract
Ensuring healthy lives and promoting well-being for all at all ages is the third goal of the sustainable development plan, so it was necessary to identify the most important problems that threaten health in our world. The World Health Organization declared that antibiotic resistance is one of the uppermost global public health threats facing humanity and searching for new antibiotics is slow. This problem can be approached by improving available drugs to combat various bacterial threats. To circumvent bacterial resistance, three copper(II) complexes based on the pefloxacin drug were prepared and characterized using analytical, spectroscopic, and thermal techniques. The resulting data suggested the formation of one octahedral binary and two distorted square pyramidal ternary complexes. Fluorescence spectra results revealed the formation of a turn-on fluorophore for amino acid detection. Computational calculations investigated quantum and reactivity parameters. Molecular electrostatic potential profiles and noncovalent bond interaction-reduced density gradient analysis indicated the active sites on the complex surface. The complexes were subjected to six microbial species, where the octahedral binary complex provoked its antimicrobial potency in comparison with ternary complexes. The enhanced antimicrobial activity against gram-negative bacterium E-coli compared to gentamicin was exhibited by the three complexes. Docking simulation was performed based on the crystal structure of E. coli and S. pneumoniae receptors using 5I2D and 6O15 codes. The binary complex exhibited a potent fitness score with 5I2D (TBE = - 107 kcal/mol) while ternary complexes displayed the highest docked score of fitness with 6O15.
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Affiliation(s)
- Doaa S El-Sayed
- Chemistry Department, Faculty of Science, Alexandria University, 2 Bagdad Street, P.O. Box 2-Moharrem Beck, Alexandria, 21321, Egypt.
| | - Eman M Tawfik
- Chemistry Department, Faculty of Science, Alexandria University, 2 Bagdad Street, P.O. Box 2-Moharrem Beck, Alexandria, 21321, Egypt
| | - Amel F Elhusseiny
- Chemistry Department, Faculty of Science, Alexandria University, 2 Bagdad Street, P.O. Box 2-Moharrem Beck, Alexandria, 21321, Egypt
| | - Ali El-Dissouky
- Chemistry Department, Faculty of Science, Alexandria University, 2 Bagdad Street, P.O. Box 2-Moharrem Beck, Alexandria, 21321, Egypt
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2
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Silva-Oliveira R, Sangenito LS, Reddy A, Velasco-Torrijos T, Santos ALS, Branquinha MH. In Vitro Effects of Aminopyridyl Ligands Complexed to Copper(II) on the Physiology and Interaction Process of Trypanosoma cruzi. Trop Med Infect Dis 2023; 8:tropicalmed8050288. [PMID: 37235336 DOI: 10.3390/tropicalmed8050288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
Chagas disease is derived from the infection by the protozoan Trypanosoma cruzi. In many countries, benznidazole is the only drug approved for clinical use despite several side effects and the emergence of resistant parasite strains. In this context, our group has previously pointed out that two novel aminopyridine derivatives complexed with Cu2+, namely, cis-aquadichloro(N-[4-(hydroxyphenyl)methyl]-2-pyridinemethamino)copper (3a) and its glycosylated ligand cis-dichloro (N-{[4-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)pheny]lmethyl}-2-pyridinemethamino)copper (3b), are effective against T. cruzi trypomastigote forms. With this result in mind, the present work aimed to investigate the effects of both compounds on trypomastigotes physiology and on the interaction process with host cells. Apart from loss of plasma membrane integrity, an increased generation of reactive oxygen species (ROS) and decreased mitochondrial metabolism were observed. Pretreatment of trypomastigotes with these metallodrugs inhibited the association index with LLC-MK2 cells in a typical dose-dependent manner. Both compounds showed low toxicity on mammalian cells (CC50 > 100 µM), and the IC50 values calculated for intracellular amastigotes were determined as 14.4 µM for 3a and 27.1 µM for 3b. This set of results demonstrates the potential of these aminopyridines complexed with Cu2+ as promising candidates for further antitrypanosomal drug development.
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Affiliation(s)
- Rafaela Silva-Oliveira
- Laboratório de Estudos Avancados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Leandro S Sangenito
- Laboratório de Estudos Avancados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Nilópolis 26530-060, Brazil
| | - Andrew Reddy
- Ferrier Research Institute, Victoria University of Wellington, Lower Hutt 5010, New Zealand
| | - Trinidad Velasco-Torrijos
- Department of Chemistry, Maynooth University, W23VP22 Maynooth, Co. Kildare, Ireland
- The Kathleen Lonsdale Institute for Human Health Research, Maynooth University, W23VP22 Maynooth, Co. Kildare, Ireland
| | - André L S Santos
- Laboratório de Estudos Avancados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- Programa de Pós-Graduação em Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
| | - Marta H Branquinha
- Laboratório de Estudos Avancados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
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3
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Aminoquinolones and Their Benzoquinone Dimer Hybrids as Modulators of Prion Protein Conversion. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227935. [PMID: 36432036 PMCID: PMC9693643 DOI: 10.3390/molecules27227935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/21/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022]
Abstract
Prion Diseases or Transmissible Spongiform Encephalopathies are neurodegenerative conditions associated with a long incubation period and progressive clinical evolution, leading to death. Their pathogenesis is characterized by conformational changes of the cellular prion protein-PrPC-in its infectious isoform-PrPSc-which can form polymeric aggregates that precipitate in brain tissues. Currently, there are no effective treatments for these diseases. The 2,5-diamino-1,4-benzoquinone structure is associated with an anti-prion profile and, considering the biodynamic properties associated with 4-quinolones, in this work, 6-amino-4-quinolones derivatives and their respective benzoquinone dimeric hybrids were synthesized and had their bioactive profile evaluated through their ability to prevent prion conversion. Two hybrids, namely, 2,5-dichloro-3,6-bis((3-carboxy-1-pentyl-4-quinolone-6-yl)amino)-1,4-benzoquinone (8e) and 2,5-dichloro-3,6-bis((1-benzyl-3-carboxy-4-quinolone-6-yl)amino)-1,4-benzoquinone (8f), stood out for their prion conversion inhibition ability, affecting the fibrillation process in both the kinetics-with a shortening of the lag phase-and thermodynamics and their ability to inhibit the formation of protein aggregates without significant cytotoxicity at ten micromolar.
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4
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Chen X, Chen J, Yu X, Sanganyado E, Wang L, Li P, Liu W. Effects of norfloxacin, copper, and their interactions on microbial communities in estuarine sediment. ENVIRONMENTAL RESEARCH 2022; 212:113506. [PMID: 35643312 DOI: 10.1016/j.envres.2022.113506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
The discharge of antibiotics and metals in estuaries is of great concern since they threaten microbial communities that are critical for maintaining ecosystem function. To understand single and combined effects of norfloxacin (0-20 μg g-1) and copper (40 μg g-1) on microbial ecology in estuaries, we evaluated changes in bacteria population, inhibition rates, and microbial composition in estuarine sediments over a 28-day period. Bacteria population significantly decreased following single and combined exposure to norfloxacin and copper throughout the incubation period, except on Day 28 in treatments exposed to copper, 20 μg g-1 norfloxacin, or both. These three treatment groups had lower Shannon diversity and Simpson's indices on Day 28 than other treatments and the controls suggesting recovery in bacteria population did not correspond with recovery in richness and evenness. Furthermore, functional predictions revealed that the effect of time and contaminants were significantly different on some microbial community functions on Day 28, especially the combination of Cu and high concentration NFX, including aerobic chemoheterotrophy, methanol oxidation and methylotrophy. Thus, norfloxacin and copper had significant adverse effects on microbial communities in estuarine sediments; however, the combined effects were variable and depended on exposure duration and antibiotic concentration.
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Affiliation(s)
- Xiaohan Chen
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China
| | - Jinjin Chen
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China
| | - Xiaoxuan Yu
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China
| | - Edmond Sanganyado
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China; Department of Applied Sciences, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| | - Lin Wang
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China
| | - Ping Li
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China
| | - Wenhua Liu
- Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong, 515063, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China.
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5
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Synthesis, structural characterization and in vitro cytotoxic evaluation of mixed Cu(II)/Co(II) levofloxacin–bipyridyl complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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6
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Dual drug delivery system based on biodegradable modified poly(3-hydroxybutyrate)-NiO nanocomposite and sequential release of drugs. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-04029-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Borchard S, Raschke S, Zak KM, Eberhagen C, Einer C, Weber E, Müller SM, Michalke B, Lichtmannegger J, Wieser A, Rieder T, Popowicz GM, Adamski J, Klingenspor M, Coles AH, Viana R, Vendelbo MH, Sandahl TD, Schwerdtle T, Plitz T, Zischka H. Bis-choline tetrathiomolybdate prevents copper-induced blood-brain barrier damage. Life Sci Alliance 2021; 5:5/3/e202101164. [PMID: 34857647 PMCID: PMC8675913 DOI: 10.26508/lsa.202101164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 11/24/2022] Open
Abstract
The blood–brain barrier endothelial cell monolayer becomes permeable to elevated copper loosely bound to albumin, which can be avoided by a high-affinity copper chelator but not by D-penicillamine. In Wilson disease, excessive copper accumulates in patients’ livers and may, upon serum leakage, severely affect the brain according to current viewpoints. Present remedies aim at avoiding copper toxicity by chelation, for example, by D-penicillamine (DPA) or bis-choline tetrathiomolybdate (ALXN1840), the latter with a very high copper affinity. Hence, ALXN1840 may potentially avoid neurological deterioration that frequently occurs upon DPA treatment. As the etiology of such worsening is unclear, we reasoned that copper loosely bound to albumin, that is, mimicking a potential liver copper leakage into blood, may damage cells that constitute the blood-brain barrier, which was found to be the case in an in vitro model using primary porcine brain capillary endothelial cells. Such blood–brain barrier damage was avoided by ALXN1840, plausibly due to firm protein embedding of the chelator bound copper, but not by DPA. Mitochondrial protection was observed, a prerequisite for blood–brain barrier integrity. Thus, high-affinity copper chelators may minimize such deterioration in the treatment of neurologic Wilson disease.
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Affiliation(s)
- Sabine Borchard
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Stefanie Raschke
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,TraceAge-Deutsche Forschungsgemeinschaft Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (Forschungsgruppe 2558), Berlin-Potsdam-Jena-Wuppertal, Germany
| | - Krzysztof M Zak
- Institute of Structural Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Carola Eberhagen
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Claudia Einer
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Elisabeth Weber
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Sandra M Müller
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Josef Lichtmannegger
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Albrecht Wieser
- Institute of Radiation Medicine, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Tamara Rieder
- Technical University Munich, School of Medicine, Institute of Toxicology and Environmental Hygiene, Munich, Germany
| | - Grzegorz M Popowicz
- Institute of Structural Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Jerzy Adamski
- Research Unit Molecular Endocrinology and Metabolism, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Lehrstuhl für Experimentelle Genetik, Technical University Munich, Freising-Weihenstephan, Germany.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Martin Klingenspor
- Chair of Molecular Nutritional Medicine, Technical University of Munich, School of Life Sciences Weihenstephan, Freising, Germany.,Else-Kröner Fresenius Center for Nutritional Medicine, Technical University of Munich, Freising, Germany
| | | | - Ruth Viana
- Alexion AstraZeneca Rare Disease, Boston, MA, USA
| | - Mikkel H Vendelbo
- Department of Nuclear Medicine and Positron Emission Tomography Centre, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus C, Denmark
| | - Thomas D Sandahl
- Medical Department Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Tanja Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,TraceAge-Deutsche Forschungsgemeinschaft Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (Forschungsgruppe 2558), Berlin-Potsdam-Jena-Wuppertal, Germany
| | | | - Hans Zischka
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany .,Technical University Munich, School of Medicine, Institute of Toxicology and Environmental Hygiene, Munich, Germany
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8
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Millanao AR, Mora AY, Villagra NA, Bucarey SA, Hidalgo AA. Biological Effects of Quinolones: A Family of Broad-Spectrum Antimicrobial Agents. Molecules 2021; 26:7153. [PMID: 34885734 PMCID: PMC8658791 DOI: 10.3390/molecules26237153] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 10/28/2021] [Accepted: 11/05/2021] [Indexed: 11/28/2022] Open
Abstract
Broad antibacterial spectrum, high oral bioavailability and excellent tissue penetration combined with safety and few, yet rare, unwanted effects, have made the quinolones class of antimicrobials one of the most used in inpatients and outpatients. Initially discovered during the search for improved chloroquine-derivative molecules with increased anti-malarial activity, today the quinolones, intended as antimicrobials, comprehend four generations that progressively have been extending antimicrobial spectrum and clinical use. The quinolone class of antimicrobials exerts its antimicrobial actions through inhibiting DNA gyrase and Topoisomerase IV that in turn inhibits synthesis of DNA and RNA. Good distribution through different tissues and organs to treat Gram-positive and Gram-negative bacteria have made quinolones a good choice to treat disease in both humans and animals. The extensive use of quinolones, in both human health and in the veterinary field, has induced a rise of resistance and menace with leaving the quinolones family ineffective to treat infections. This review revises the evolution of quinolones structures, biological activity, and the clinical importance of this evolving family. Next, updated information regarding the mechanism of antimicrobial activity is revised. The veterinary use of quinolones in animal productions is also considered for its environmental role in spreading resistance. Finally, considerations for the use of quinolones in human and veterinary medicine are discussed.
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Affiliation(s)
- Ana R. Millanao
- Facultad de Ciencias, Instituto de Farmacia, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Aracely Y. Mora
- Programa de Doctorado en Bioquímica, Universidad de Chile, Santiago 8380544, Chile;
| | - Nicolás A. Villagra
- Escuela de Tecnología Médica, Universidad Andres Bello, Santiago 8370071, Chile;
| | - Sergio A. Bucarey
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago 8820808, Chile;
| | - Alejandro A. Hidalgo
- Escuela de Química y Farmacia, Universidad Andres Bello, Santiago 8370071, Chile
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9
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Nedeljković NV, Nikolić MV, Mijajlović MŽ, Radić GP, Stanković AS. Interaction of bioessential metal ions with quinolone antibiotics: Structural features and biological evaluation. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Abbass LM, Sadeek SA, Zordok WA, El-Telbany M, El-Shwiniy WH. Synthesis, Structure, DFT, and Biological Activity of Metal Complexes of Norfloxacin and Metformin Mixed Ligand. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221090243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Scarim CB, de Farias RL, Chiba DE, Chin CM. Insight into Recent Drug Discoveries against Trypanosomatids and Plasmodium spp Parasites: New Metal-based Compounds. Curr Med Chem 2021; 29:2334-2381. [PMID: 34533436 DOI: 10.2174/0929867328666210917114912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 11/22/2022]
Abstract
Scaffolds of metal-based compounds can act as pharmacophore groups in several ligands to treat various diseases, including tropical infectious diseases (TID). In this review article, we investigate the contribution of these moieties to medicinal inorganic chemistry in the last seven years against TID, including American trypanosomiasis (Chagas disease), human African trypanosomiasis (HAT, sleeping sickness), leishmania, and malaria. The most potent metal-based complexes are displayed and highlighted in figures, tables and graphics; according to their pharmacological activities (IC50 > 10µM) against Trypanosomatids and Plasmodium spp parasites. We highlight the current progresses and viewpoints of these metal-based complexes, with a specific focus on drug discovery.
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Affiliation(s)
- Cauê Benito Scarim
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, 14800-903, Brazil
| | - Renan Lira de Farias
- Sao Paulo State University (UNESP), Institute of Chemistry, 14800-060, Araraquara-SP, Brazil
| | - Diego Eidy Chiba
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, 14800-903, Brazil
| | - Chung Man Chin
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, 14800-903, Brazil
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12
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Mubarak A, Abu Ali H, Metani M. Two novel Cu (II) levofloxacin complexes with different bioactive nitrogen‐based ligands; single‐crystal X‐ray and various biological activities determinations. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Asem Mubarak
- Department of Chemistry Birzeit University Birzeit Palestine
| | - Hijazi Abu Ali
- Department of Chemistry Birzeit University Birzeit Palestine
| | - Munther Metani
- Department of Biology and Biochemistry Birzeit University Birzeit Palestine
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13
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Flores-Rojas GG, Ruiu A, Vonlanthen M, Rojas-Montoya SM, Martínez-Serrano RD, Morales-Morales D, Rivera E. Synthesis and characterization of cyclen cored photoactive star compounds and their Cu(I) and Cu(II) complexes. Effect of the valence and ligand size on their molar extinction coefficient. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Paranawithana NN, Martins AF, Clavijo Jordan V, Zhao P, Chirayil S, Meloni G, Sherry AD. A Responsive Magnetic Resonance Imaging Contrast Agent for Detection of Excess Copper(II) in the Liver In Vivo. J Am Chem Soc 2019; 141:11009-11018. [PMID: 31268706 PMCID: PMC9991518 DOI: 10.1021/jacs.8b13493] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The design, synthesis, and properties of a new gadolinium-based copper-responsive magnetic resonance imaging (MRI) contrast agent is presented. The sensor (GdL1) has high selectivity for copper ions and exhibits a 43% increase in r1 relaxivity (20 MHz) upon binding to 1 equiv of Cu2+ in aqueous buffer. Interestingly, in the presence of physiological levels of human serum albumin (HSA), the r1 relaxivity is amplified further up to 270%. Additional spectroscopic and X-ray absorption spectroscopy (XAS) studies show that Cu2+ is coordinated by two carboxylic acid groups and the single amine group on an appended side chain of GdL1 and forms a ternary complex with HSA (GdL1-Cu2+-HSA). T1-weighted in vivo imaging demonstrates that GdL1 can detect basal, endogenous labile copper(II) ions in living mice. This offers a unique opportunity to explore the role of copper ions in the development and progression of neurological diseases such as Wilson's disease.
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Affiliation(s)
- Namini N Paranawithana
- Department of Chemistry and Biochemistry , University of Texas at Dallas , Richardson , Texas , United States
| | - Andre F Martins
- Department of Chemistry and Biochemistry , University of Texas at Dallas , Richardson , Texas , United States
| | - Veronica Clavijo Jordan
- Advanced Imaging Research Center , University of Texas Southwestern Medical Center , Dallas , Texas , United States
| | - Piyu Zhao
- Department of Chemistry and Biochemistry , University of Texas at Dallas , Richardson , Texas , United States
| | - Sara Chirayil
- Advanced Imaging Research Center , University of Texas Southwestern Medical Center , Dallas , Texas , United States
| | - Gabriele Meloni
- Department of Chemistry and Biochemistry , University of Texas at Dallas , Richardson , Texas , United States
| | - A Dean Sherry
- Department of Chemistry and Biochemistry , University of Texas at Dallas , Richardson , Texas , United States.,Advanced Imaging Research Center , University of Texas Southwestern Medical Center , Dallas , Texas , United States
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15
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Ong YC, Roy S, Andrews PC, Gasser G. Metal Compounds against Neglected Tropical Diseases. Chem Rev 2018; 119:730-796. [DOI: 10.1021/acs.chemrev.8b00338] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yih Ching Ong
- Laboratory for Inorganic Chemical Biology, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
| | - Saonli Roy
- Department of Chemistry, University of Zurich, Wintherthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Philip C. Andrews
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia
| | - Gilles Gasser
- Laboratory for Inorganic Chemical Biology, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
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16
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Paixão DA, Lopes CD, Carneiro ZA, Sousa LM, de Oliveira LP, Lopes NP, Pivatto M, Chaves JDS, de Almeida MV, Ellena J, Moreira MB, Netto AVG, de Oliveira RJ, Guilardi S, de Albuquerque S, Guerra W. In vitro anti-Trypanosoma cruzi activity of ternary copper(II) complexes and in vivo evaluation of the most promising complex. Biomed Pharmacother 2018; 109:157-166. [PMID: 30396072 DOI: 10.1016/j.biopha.2018.10.057] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 12/12/2022] Open
Abstract
In order to improve the previously observed antichagasic activity of Cu(II) complexes containing 2-chlorobenzhydrazide (2-CH), we report herein the synthesis and anti-Trypanosoma cruzi activity of novel copper complexes containing 2-methoxybenzhydrazide (2-MH), 4-methoxybenzhydrazide (4-MH) and three α-diimine ligands, namely, 1,10-phenanthroline (phen), 2,2-bipyridine (bipy) and 4-4'-dimethoxy-2-2'-bipyridine (dmb). Two of these complexes showed higher in vitro anti-Trypanosoma cruzi activity when compared to benznidazole, the main drug used in Chagas disease treatment. One of them, the copper complex with 4-MH and dmb, [Cu(4-MH)(dmb)(ClO4)2], exhibited a higher selectivity index than that recommended for preclinical studies. Considering this observation, complex [Cu(4-MH)(dmb)(ClO4)2] was selected for preliminary in vivo assays, which verified that this compound was able to reduce parasitemia by 64% at the peak of infection. Further investigations were performed on all compounds. The Cu(II) complexes bind to ct-DNA with Kb values in the range of 103-104 M-1, with [Cu(4-MH)(dmb)(ClO4)2] showing the highest Kb value (1.45 × 104 M-1). Molecular docking simulations predicted that [Cu(4-MH)(dmb)(ClO4)2] binds in the minor groove of the double helix of ct-DNA and forms one hydrogen bond.
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Affiliation(s)
- Drielly A Paixão
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia, MG, Brazil
| | - Carla D Lopes
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Zumira A Carneiro
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Luana M Sousa
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia, MG, Brazil
| | - Leticia P de Oliveira
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia, MG, Brazil
| | - Norberto P Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Marcos Pivatto
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia, MG, Brazil
| | - Joana Darc S Chaves
- Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora-MG, Brazil
| | - Mauro V de Almeida
- Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora-MG, Brazil
| | - Javier Ellena
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | - Mariete B Moreira
- UNESP - Universidade Estadual Paulista, Instituto de Química, 14800-060, Araraquara-SP, Brazil
| | - Adelino V G Netto
- UNESP - Universidade Estadual Paulista, Instituto de Química, 14800-060, Araraquara-SP, Brazil
| | - Ronaldo J de Oliveira
- Departamento de Física, Instituto de Ciências Exatas, Naturais e Educação, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil
| | - Silvana Guilardi
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia, MG, Brazil
| | - Sérgio de Albuquerque
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Wendell Guerra
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia, MG, Brazil.
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Paixão DA, de Oliveira LP, da S. Maia PI, Deflon VM, Carneiro ZA, de Almeida KJ, Lopes NP, Pivatto M, Chaves JDS, de Albuquerque S, de Almeida MV, Guilardi S, Guerra W. Crystal structure of two new polymeric copper(II) complexes active against Trypanosoma cruzi. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2018.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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18
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Galkina PА, Proskurnin МА. Supramolecular interaction of transition metal complexes with albumins and DNA: Spectroscopic methods of estimation of binding parameters. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4150] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Polina А. Galkina
- Moscow State M.V. Lomonosov University; Department of Chemistry; Leninskiye Gory 1, bld. 3 119991 Moscow Russia
| | - Мikhail А. Proskurnin
- Moscow State M.V. Lomonosov University; Department of Chemistry; Leninskiye Gory 1, bld. 3 119991 Moscow Russia
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19
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Vignoli Muniz GS, Incio JL, Alves OC, Krambrock K, Teixeira LR, Louro SRW. Fluorescence and electron paramagnetic resonance studies of norfloxacin and N-donor mixed-ligand ternary copper(II) complexes: Stability and interaction with SDS micelles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:133-138. [PMID: 28806698 DOI: 10.1016/j.saa.2017.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/26/2017] [Accepted: 08/04/2017] [Indexed: 06/07/2023]
Abstract
The stability of ternary copper(II) complexes of a heterocyclic ligand, L (L being 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen)) and the fluorescent antibacterial agent norfloxacin (NFX) as the second ligand was studied at pH7.4 and different ionic strengths. Fluorescence quenching upon titration of NFX with the binary complexes allowed to obtain stability constants for NFX binding, Kb, as a function of ionic strength. The Kb values vary by more than two orders of magnitude when buffer concentration varies from 0.5 to 100mM. It was observed that previously synthesized ternary complexes dissociate in buffer according with the obtained stability constants. This shows that equimolar solutions of NFX and binary complexes are equivalent to solutions of synthesized ternary complexes. The interaction of the ternary copper complexes with anionic SDS (sodium dodecyl sulfate) micelles was studied by fluorescence and electron paramagnetic resonance (EPR). Titration of NFX-loaded SDS micelles with the complexes Cu:L allowed to determine the stability constants inside the micelles. Fluorescence quenching demonstrated that SDS micelles increase the stability constants by factors around 50. EPR spectra gave details of the copper(II) local environment, and demonstrated that the structure of the ternary complexes inside SDS micelles is different from that in buffer. Mononuclear ternary complexes formed inside the micelles, while in buffer most ternary complexes are binuclear. The results show that anionic membrane interfaces increase formation of copper fluoroquinolone complexes, which can influence bioavailability, membrane diffusion, and mechanism of action of the antibiotics.
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Affiliation(s)
- Gabriel S Vignoli Muniz
- Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ 22451-900, Brazil
| | - Jimmy Llontop Incio
- Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ 22451-900, Brazil
| | - Odivaldo C Alves
- Departamento de Físico-Química, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil
| | - Klaus Krambrock
- Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Letícia R Teixeira
- Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Sonia R W Louro
- Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ 22451-900, Brazil.
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20
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Bomfim Filho LF, Barbosa RS, Burgos C. AE, Rodrigues BL, Teixeira LR. New isoxazole(3,5)substituted thiosemicarbazone: Synthesis, crystal structure and spectroscopic studies of the binding mode to protein and calf thymus DNA. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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21
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Synthesis, crystal structure, catalytic and anti-Trypanosoma cruzi activity of a new chromium(III) complex containing bis(3,5-dimethylpyrazol-1-yl)methane. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Tamayo LV, Da Silva JG, Quintão MC, Duarte HA, Louro SR, Beraldo H. Investigation on the physicochemical properties of trans -4-stilbenecarboxaldehyde-derived hydrazones and their copper(II) complexes. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Kumar A, Balbach J. Targeting the molecular chaperone SlyD to inhibit bacterial growth with a small molecule. Sci Rep 2017; 7:42141. [PMID: 28176839 PMCID: PMC5296862 DOI: 10.1038/srep42141] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/03/2017] [Indexed: 12/23/2022] Open
Abstract
Molecular chaperones are essential molecules for cell growth, whereby they maintain protein homeostasis. Because of their central cellular function, bacterial chaperones might be potential candidates for drug targets. Antimicrobial resistance is currently one of the greatest threats to human health, with gram-negative bacteria being of major concern. We found that a Cu2+ complex readily crosses the bacterial cell wall and inhibits SlyD, which is a molecular chaperone, cis/trans peptidyl prolyl isomerise (PPIase) and involved in various other metabolic pathways. The Cu2+ complex binds to the active sites of SlyD, which suppresses its PPIase and chaperone activities. Significant cell growth retardation could be observed for pathogenic bacteria (e.g., Staphylococcus aureus and Pseudomonas aeruginosa). We anticipate that rational development of drugs targeting molecular chaperones might help in future control of pathogenic bacterial growth, in an era of rapidly increasing antibiotic resistance.
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Affiliation(s)
- Amit Kumar
- Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
- Institute of Physics, Biophysics, Martin Luther University, Halle, Wittenberg, Germany
| | - Jochen Balbach
- Institute of Physics, Biophysics, Martin Luther University, Halle, Wittenberg, Germany
- Centre for Structure und Dynamics of Proteins (MZP), Martin Luther University Halle, Wittenberg, Germany
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24
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Reddy A, Sangenito LS, Guedes ADA, Branquinha MH, Kavanagh K, McGinley J, dos Santos ALS, Velasco-Torrijos T. Glycosylated metal chelators as anti-parasitic agents with tunable selectivity. Dalton Trans 2017; 46:5297-5307. [DOI: 10.1039/c6dt04615k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Metal complexation imparts selective anti-parasitic activity to aminopyridyl ligands: Zn(ii) and Cu(ii) complexes show potent activity and remarkable selectivity indexes.
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Affiliation(s)
- Andrew Reddy
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - Leandro Stefano Sangenito
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
| | - Arthur de Azevedo Guedes
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
| | - Marta Helena Branquinha
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
| | | | - John McGinley
- Department of Chemistry
- University of Copenhagen
- Copenhagen
- Denmark
| | - André Luis Souza dos Santos
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
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