1
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Romão CC, Mendes SS, Rebelo C, Carvalho SM, Saraiva LM. Antimicrobial and anticancer properties of carbon monoxide releasing molecules of the fac-[Re(CO) 3(N-N)L] + family. Dalton Trans 2024; 53:11009-11020. [PMID: 38874948 DOI: 10.1039/d4dt00978a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
The toxicity profile of fac-[Re(CO)3(N-N)L]+ complexes against microbial and tumoral cells has been extensively studied, primarily focusing on modifications to the bidentate diimine (N-N) ligand. However, less attention has been paid to modifications of the axial ligand L, which is perpendicular to the Re-N-N plane. This study reveals that the high toxicity of the fac-[Re(CO)3(bpy)(Ctz)]+ complex may be attributed to the structural effect of the trityl (CPh3) group present in clotrimazole, as removal of phenyl rings causes a significant decrease in the activity against Staphylococcus aureus (S. aureus). Moreover, substitution of the 1-tritylimidazole ligand by the structurally related ligands PPh3 and PCy3 maintains similarly high activity levels. These findings contribute to understanding the interactions of toxic complexes with bacterial membranes, suggesting that the ligand structures play a crucial role in inhibiting cell wall synthesis processes, potentially including Lipid II synthesis. Compounds with Ph3E (E = C-imidazole; P) groups also showed to be 10 times more toxic than cisplatin against three mammalian cell lines (IC50: 2-4 μM). In contrast, the analogue 1-benzylimidazole and 1-tert-butylimidazole derivatives were as toxic as cisplatin. We observed that the decomposition of the [Re(I)(CO)3] fragment inside mammalian cell lines liberates CO, which is expected to exert biological effects. Therefore, compounds of this family possessing the structural motif Ph3E seem to combine high antimicrobial and antitumoral activities, the latter being much higher than that of cisplatin.
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Affiliation(s)
- Carlos C Romão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Sofia S Mendes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Cátia Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Sandra M Carvalho
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Lígia M Saraiva
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
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2
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Fulgencio S, Scaccaglia M, Frei A. Exploration of Rhenium Bisquinoline Tricarbonyl Complexes for their Antibacterial Properties. Chembiochem 2024:e202400435. [PMID: 38785033 DOI: 10.1002/cbic.202400435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 05/25/2024]
Abstract
Metal complexes have emerged as a promising source for novel classes of antibacterial agents to combat the rise of antimicrobial resistance around the world. In the exploration of the transition metal chemical space for novel metalloantibiotics, the rhenium tricarbonyl moiety has been identified as a promising scaffold. Here we have prepared eight novel rhenium bisquinoline tricarbonyl complexes and explored their antibacterial properties. Significant activity against both Gram-positive and Gram-negative bacteria was observed. However, all complexes also showed significant toxicity against human cells, putting into question the prospects of this specific rhenium compound class as metalloantibiotics. To better understand their biological effects, we conduct the first mode of action studies on rhenium bisquinoline complexes and show that they are able to form pores through bacterial membranes. Their straight-forward synthesis and tuneability suggests that further optimisation of this compound class could lead to compounds with enhanced bacterial specificity.
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Affiliation(s)
- Sofia Fulgencio
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Mirco Scaccaglia
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy
| | - Angelo Frei
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
- Department of Chemistry, University of York, York, YO10 5DD, U.K
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3
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Scaccaglia M, Birbaumer MP, Pinelli S, Pelosi G, Frei A. Discovery of antibacterial manganese(i) tricarbonyl complexes through combinatorial chemistry. Chem Sci 2024; 15:3907-3919. [PMID: 38487233 PMCID: PMC10935722 DOI: 10.1039/d3sc05326a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/23/2024] [Indexed: 03/17/2024] Open
Abstract
The continuous rise of antimicrobial resistance is a serious threat to human health and already causing hundreds of thousands of deaths each year. While natural products and synthetic organic small molecules have provided the majority of our current antibiotic arsenal, they are falling short in providing new drugs with novel modes of action able to treat multidrug resistant bacteria. Metal complexes have recently shown promising results as antimicrobial agents, but the number of studied compounds is still vanishingly small, making it difficult to identify promising compound classes or elucidate structure-activity relationships. To accelerate the pace of discovery we have applied a combinatorial chemistry approach to the synthesis of metalloantibiotics. Utilizing robust Schiff-base chemistry and combining 7 picolinaldehydes with 10 aniline derivatives, and 6 axial ligands, either imidazole/pyridine-based or solvent, we have prepared a library of 420 novel manganese tricarbonyl complexes. All compounds were evaluated for their antibacterial properties and 10 lead compounds were identified, re-synthesised and fully characterised. All 10 compounds showed high and broad activity against Gram-positive bacteria. The best manganese complex displayed low toxicity against human cells with a therapeutic index of >100. In initial mode of action studies, we show that it targets the bacterial membrane without inducing pore formation or depolarisation. Instead, it releases its carbon monoxide ligands around the membrane and inhibits the bacterial respiratory chain. This work demonstrates that large numbers of metal complexes can be accessed through combinatorial synthesis and evaluated for their antibacterial potential, allowing for the rapid identification of promising metalloantibiotic lead compounds.
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Affiliation(s)
- Mirco Scaccaglia
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma 43124 Parma Italy
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Michael P Birbaumer
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Silvana Pinelli
- Department of Medicine and Surgery, University of Parma Via Gramsci 14 43126 Parma Italy
| | - Giorgio Pelosi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma 43124 Parma Italy
| | - Angelo Frei
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern Freiestrasse 3 3012 Bern Switzerland
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4
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Ragone F, Yañuk JG, Cabrerizo FM, Prieto E, Wolcan E, Ruiz GT. DNA structural changes (photo)induced by tricarbonyl (pterin)rhenium(I) complex. J Inorg Biochem 2024; 252:112471. [PMID: 38181612 DOI: 10.1016/j.jinorgbio.2023.112471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/08/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024]
Abstract
We report on interactions of different types of DNA molecules including double-stranded and plasmid DNA as well as polynucleotides (poly[dGdC]2 and poly[dAdT]2) with fac-[ReI(CO)3(pterin)(H2O)] (or Reptr) complex. The interaction was characterized spectroscopically and changes in the plasmid structure were verified by both electrophoresis and AFM microscopy. For comparative reasons, two others related tricarbonyl rhenium(I) complexes, fac-[(4,4'-bpy)ReI(CO)3(dppz)]+ (or Redppz) and fac-[(CF3SO3)ReI(CO)3(2,2'-bpy)] (or Rebpy) were also studied to further explore the influence of the different co-ligands on the interaction and DNA (photo)damage. Data reported herein suggests that DNA molecules can be structurally modified either by direct interaction with Re(I) complexes in their ground states inducing DNA relaxation, and/or through photoinduced cross-linking processes. The chemical nature of the co-ligands modulates the extent of the damage observed.
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Affiliation(s)
- F Ragone
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina
| | - J G Yañuk
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Av. Intendente Marino Km 8.2, CC 164 (B7130IWA), Chascomús, Argentina; Escuela de Bio y Nanotecnologías (UNSAM), Argentina
| | - F M Cabrerizo
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Av. Intendente Marino Km 8.2, CC 164 (B7130IWA), Chascomús, Argentina; Escuela de Bio y Nanotecnologías (UNSAM), Argentina.
| | - E Prieto
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina; ICS-UNAJ, Avenida Calchaqui 6200 Florencio Varela, Argentina
| | - E Wolcan
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina
| | - G T Ruiz
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
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Mariconda A, Iacopetta D, Sirignano M, Ceramella J, D'Amato A, Marra M, Pellegrino M, Sinicropi MS, Aquaro S, Longo P. Silver and Gold Complexes with NHC-Ligands Derived from Caffeine: Catalytic and Pharmacological Activity. Int J Mol Sci 2024; 25:2599. [PMID: 38473851 DOI: 10.3390/ijms25052599] [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: 02/06/2024] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
N-heterocyclic carbene (NHC) silver(I) and gold(I) complexes have found different applications in various research fields, as in medicinal chemistry for their antiproliferative, anticancer, and antibacterial activity, and in chemistry as innovative and effective catalysts. The possibility of modulating the physicochemical properties, by acting on their ligands and substituents, makes them versatile tools for the development of novel metal-based compounds, mostly as anticancer compounds. As it is known, chemotherapy is commonly adopted for the clinical treatment of different cancers, even though its efficacy is hampered by several factors. Thus, the development of more effective and less toxic drugs is still an urgent need. Herein, we reported the synthesis and characterization of new silver(I) and gold(I) complexes stabilized by caffeine-derived NHC ligands, together with their biological and catalytic activities. Our data highlight the interesting properties of this series as effective catalysts in A3-coupling and hydroamination reactions and as promising anticancer, anti-inflammatory, and antioxidant agents. The ability of these complexes in regulating different pathological aspects, and often co-promoting causes, of cancer makes them ideal leads to be further structurally functionalized and investigated.
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Affiliation(s)
- Annaluisa Mariconda
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Domenico Iacopetta
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy
| | - Marco Sirignano
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Jessica Ceramella
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy
| | - Assunta D'Amato
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Maria Marra
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy
| | - Michele Pellegrino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy
| | - Maria Stefania Sinicropi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy
| | - Stefano Aquaro
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy
| | - Pasquale Longo
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
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6
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Dube NP, Thatyana M, Mokgalaka-Fleischmann NS, Mansour AM, Tembu VJ, Manicum ALE. Review on the Applications of Selected Metal-Based Complexes on Infectious Diseases. Molecules 2024; 29:406. [PMID: 38257319 PMCID: PMC10819944 DOI: 10.3390/molecules29020406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Fatalities caused by infectious diseases (i.e., diseases caused by parasite, bacteria, and viruses) have become reinstated as a major public health threat globally. Factors such as antimicrobial resistance and viral complications are the key contributors to the death numbers. As a result, new compounds with structural diversity classes are critical for controlling the virulence of pathogens that are multi-drug resistant. Derivatization of bio-active organic molecules with organometallic synthons is a promising strategy for modifying the inherent and enhanced properties of biomolecules. Due to their redox chemistry, bioactivity, and structural diversity, organometallic moieties make excellent candidates for lead structures in drug development. Furthermore, organometallic compounds open an array of potential in therapy that existing organic molecules lack, i.e., their ability to fulfill drug availability and resolve the frequent succumbing of organic molecules to drug resistance. Additionally, metal complexes have the potential towards metal-specific modes of action, preventing bacteria from developing resistance mechanisms. This review's main contribution is to provide a thorough account of the biological efficacy (in vitro and in vitro) of metal-based complexes against infectious diseases. This resource can also be utilized in conjunction with corresponding journals on metal-based complexes investigated against infectious diseases.
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Affiliation(s)
- Nondumiso P. Dube
- Department of Chemistry, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa; (N.P.D.); (M.T.); (N.S.M.-F.); (V.J.T.)
| | - Maxwell Thatyana
- Department of Chemistry, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa; (N.P.D.); (M.T.); (N.S.M.-F.); (V.J.T.)
| | - Ntebogeng S. Mokgalaka-Fleischmann
- Department of Chemistry, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa; (N.P.D.); (M.T.); (N.S.M.-F.); (V.J.T.)
| | - Ahmed M. Mansour
- Department of Chemistry, United Arab Emirates University, Al-Ain 15551, United Arab Emirates;
| | - Vuyelwa J. Tembu
- Department of Chemistry, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa; (N.P.D.); (M.T.); (N.S.M.-F.); (V.J.T.)
| | - Amanda-Lee E. Manicum
- Department of Chemistry, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa; (N.P.D.); (M.T.); (N.S.M.-F.); (V.J.T.)
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7
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Marco A, Vigueras G, Busto N, Cutillas N, Bautista D, Ruiz J. Novel valproate half-sandwich rhodium and iridium conjugates to fight against multidrug-resistant Gram-positive bacteria. Dalton Trans 2023; 52:13482-13486. [PMID: 37358044 DOI: 10.1039/d3dt01678a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
New valproate Ir(III) and Rh(III) half-sandwich conjugates containing a C,N-phenylbenzimidazole chelated ligand have been synthesized and characterized. The valproic acid conjugation to organometallic fragments seems to switch on the antibacterial activity of the complexes towards Enterococcus faecium and Staphylococcus aureus Gram-positive bacteria.
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Affiliation(s)
- Alicia Marco
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain.
| | - Gloria Vigueras
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain.
| | - Natalia Busto
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, E-09001, Burgos, Spain.
- Departamento de Ciencias de la Salud. Facultad de Ciencias de la Salud. Universidad de Burgos, Hospital Militar, Paseo de los Comendadores, s/n, 09001 Burgos, Spain
| | - Natalia Cutillas
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain.
| | | | - José Ruiz
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain.
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8
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Stephens LJ, Dallerba E, Kelderman JTA, Levina A, Werrett MV, Lay PA, Massi M, Andrews PC. Synthesis and the photophysical and biological properties of tricarbonyl Re(I) diimine complexes bound to thiotetrazolato ligands. Dalton Trans 2023; 52:4835-4848. [PMID: 36939381 DOI: 10.1039/d2dt03237f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Twelve Re(I) tricarbonyl diimine (2,2'-bipyridine and 1,10-phenanthroline) complexes with thiotetrazolato ligands have been synthesised and fully characterised. Structural characterisation revealed the capacity of the tetrazolato ligand to bind to the Re(I) centre through either the S atom or the N atom with crystallography revealing most complexes being bound to the N atom. However, an example where the Re(I) centre is linked via the S atom has been identified. In solution, the complexes exist as an equilibrating mixture of linkage isomers, as suggested by comparison of their NMR spectra at room temperature and 373 K, as well as 2D exchange spectroscopy. The complexes are photoluminescent in fluid solution at room temperature, with emission either at 625 or 640 nm from the metal-to-ligand charge transfer excited states of triplet multiplicity, which seems to be exclusively dependent on the nature of the diimine ligand. The oxygen-sensitive excited state lifetime decay ranges between 12.5 and 27.5 ns for the complexes bound to 2,2'-bipyrdine, or between 130.6 and 155.2 ns for those bound to 1.10-phenanthroline. Quantum yields were measured within 0.4 and 1.5%. The complexes were incubated with human lung (A549), brain (T98g), and breast (MDA-MB-231) cancer cells, as well as with normal human skin fibroblasts (HFF-1), revealing low to moderate cytotoxicity, which for some compounds exceeded that of a standard anti-cancer drug, cisplatin. Low cytotoxicity combined with significant cellular uptake and photoluminescence properties provides potential for their use as cellular imaging agents. Furthermore, the complexes were assessed in disc diffusion and broth microdilution assays against methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), Escherichia coli (E. coli), and Pseudomonas aeruginosa (P. aeruginosa) bacterial strains, which revealed negligible antibacterial activity in the dark or after irradiation.
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Affiliation(s)
- Liam J Stephens
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia.
| | - Elena Dallerba
- School of Molecular and Life Sciences, Curtin University, Kent Street, 6102 Perth, Australia.
| | - Jenisi T A Kelderman
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia.
| | - Aviva Levina
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Melissa V Werrett
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia.
| | - Peter A Lay
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Massimiliano Massi
- School of Molecular and Life Sciences, Curtin University, Kent Street, 6102 Perth, Australia.
| | - Philip C Andrews
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia.
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9
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Frei A, Verderosa AD, Elliott AG, Zuegg J, Blaskovich MAT. Metals to combat antimicrobial resistance. Nat Rev Chem 2023; 7:202-224. [PMID: 37117903 PMCID: PMC9907218 DOI: 10.1038/s41570-023-00463-4] [Citation(s) in RCA: 94] [Impact Index Per Article: 94.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2023] [Indexed: 02/10/2023]
Abstract
Bacteria, similar to most organisms, have a love-hate relationship with metals: a specific metal may be essential for survival yet toxic in certain forms and concentrations. Metal ions have a long history of antimicrobial activity and have received increasing attention in recent years owing to the rise of antimicrobial resistance. The search for antibacterial agents now encompasses metal ions, nanoparticles and metal complexes with antimicrobial activity ('metalloantibiotics'). Although yet to be advanced to the clinic, metalloantibiotics are a vast and underexplored group of compounds that could lead to a much-needed new class of antibiotics. This Review summarizes recent developments in this growing field, focusing on advances in the development of metalloantibiotics, in particular, those for which the mechanism of action has been investigated. We also provide an overview of alternative uses of metal complexes to combat bacterial infections, including antimicrobial photodynamic therapy and radionuclide diagnosis of bacterial infections.
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Affiliation(s)
- Angelo Frei
- Community for Open Antimicrobial Drug Discovery, Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia.
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland.
| | - Anthony D Verderosa
- Community for Open Antimicrobial Drug Discovery, Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Alysha G Elliott
- Community for Open Antimicrobial Drug Discovery, Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Johannes Zuegg
- Community for Open Antimicrobial Drug Discovery, Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Mark A T Blaskovich
- Community for Open Antimicrobial Drug Discovery, Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia.
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10
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Antimicrobial Activity of Rhenium Di- and Tricarbonyl Diimine Complexes: Insights on Membrane-Bound S. aureus Protein Binding. Pharmaceuticals (Basel) 2022; 15:ph15091107. [PMID: 36145328 PMCID: PMC9501577 DOI: 10.3390/ph15091107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial resistance is one of the major human health threats, with significant impacts on the global economy. Antibiotics are becoming increasingly ineffective as drug-resistance spreads, imposing an urgent need for new and innovative antimicrobial agents. Metal complexes are an untapped source of antimicrobial potential. Rhenium complexes, amongst others, are particularly attractive due to their low in vivo toxicity and high antimicrobial activity, but little is known about their targets and mechanism of action. In this study, a series of rhenium di- and tricarbonyl diimine complexes were prepared and evaluated for their antimicrobial potential against eight different microorganisms comprising Gram-negative and -positive bacteria. Our data showed that none of the Re dicarbonyl or neutral tricarbonyl species have either bactericidal or bacteriostatic potential. In order to identify possible targets of the molecules, and thus possibly understand the observed differences in the antimicrobial efficacy of the molecules, we computationally evaluated the binding affinity of active and inactive complexes against structurally characterized membrane-bound S. aureus proteins. The computational analysis indicates two possible major targets for this class of compounds, namely lipoteichoic acids flippase (LtaA) and lipoprotein signal peptidase II (LspA). Our results, consistent with the published in vitro studies, will be useful for the future design of rhenium tricarbonyl diimine-based antibiotics.
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11
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Steric and electronic influence of Re(I) tricarbonyl complexes with various coordinated β-diketones. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133278] [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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12
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Cooper SM, Siakalli C, White AJP, Frei A, Miller PW, Long NJ. Synthesis and anti-microbial activity of a new series of bis(diphosphine) rhenium(V) dioxo complexes. Dalton Trans 2022; 51:12791-12795. [PMID: 35920379 DOI: 10.1039/d2dt02157a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rhenium-based metallodrugs have recently been highlighted as promising candidates for new antibiotics to combat multi-drug resistant (MDR) pathogens. A new class of rhenium(V) dioxo complexes were prepared from readily accessible diphosphine ligands, and have been shown to possess potent activity against Staphylococcus aureus (S. aureus) and Candida albicans (C. albicans) alongside low human cell toxicity.
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Affiliation(s)
- Saul M Cooper
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, White City Campus, London, W12 0BZ, UK.
| | - Christina Siakalli
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, White City Campus, London, W12 0BZ, UK.
| | - Andrew J P White
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, White City Campus, London, W12 0BZ, UK.
| | - Angelo Frei
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, White City Campus, London, W12 0BZ, UK.
| | - Philip W Miller
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, White City Campus, London, W12 0BZ, UK.
| | - Nicholas J Long
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, White City Campus, London, W12 0BZ, UK.
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13
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Mendes SS, Marques J, Mesterházy E, Straetener J, Arts M, Pissarro T, Reginold J, Berscheid A, Bornikoel J, Kluj RM, Mayer C, Oesterhelt F, Friães S, Royo B, Schneider T, Brötz-Oesterhelt H, Romão CC, Saraiva LM. Synergetic Antimicrobial Activity and Mechanism of Clotrimazole-Linked CO-Releasing Molecules. ACS BIO & MED CHEM AU 2022; 2:419-436. [PMID: 35996473 PMCID: PMC9389576 DOI: 10.1021/acsbiomedchemau.2c00007] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
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Several metal-based
carbon monoxide-releasing molecules (CORMs)
are active CO donors with established antibacterial activity. Among
them, CORM conjugates with azole antibiotics of type [Mn(CO)3(2,2′-bipyridyl)(azole)]+ display important synergies
against several microbes. We carried out a structure–activity
relationship study based upon the lead structure of [Mn(CO)3(Bpy)(Ctz)]+ by producing clotrimazole (Ctz) conjugates
with varying metal and ligands. We concluded that the nature of the
bidentate ligand strongly influences the bactericidal activity, with
the substitution of bipyridyl by small bicyclic ligands leading to
highly active clotrimazole conjugates. On the contrary, the metal
did not influence the activity. We found that conjugate [Re(CO)3(Bpy)(Ctz)]+ is more than the sum of its parts:
while precursor [Re(CO)3(Bpy)Br] has no antibacterial activity
and clotrimazole shows only moderate minimal inhibitory concentrations,
the potency of [Re(CO)3(Bpy)(Ctz)]+ is one order
of magnitude higher than that of clotrimazole, and the spectrum of
bacterial target species includes Gram-positive and Gram-negative
bacteria. The addition of [Re(CO)3(Bpy)(Ctz)]+ to Staphylococcus aureus causes a
general impact on the membrane topology, has inhibitory effects on
peptidoglycan biosynthesis, and affects energy functions. The mechanism
of action of this kind of CORM conjugates involves a sequence of events
initiated by membrane insertion, followed by membrane disorganization,
inhibition of peptidoglycan synthesis, CO release, and break down
of the membrane potential. These results suggest that conjugation
of CORMs to known antibiotics may produce useful structures with synergistic
effects that increase the conjugate’s activity relative to
that of the antibiotic alone.
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Affiliation(s)
- Sofia S Mendes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Joana Marques
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Edit Mesterházy
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Jan Straetener
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Melina Arts
- Institute for Pharmaceutical Microbiology, University of Bonn, University Clinic Bonn, Meckenheimer Allee 168, 53115 Bonn, Germany
| | - Teresa Pissarro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Jorgina Reginold
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Anne Berscheid
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Jan Bornikoel
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Robert M Kluj
- Institute of Microbiology and Infection Medicine, Dept. of Organismic Interactions, University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Christoph Mayer
- Institute of Microbiology and Infection Medicine, Dept. of Organismic Interactions, University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Filipp Oesterhelt
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Sofia Friães
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Tanja Schneider
- Institute for Pharmaceutical Microbiology, University of Bonn, University Clinic Bonn, Meckenheimer Allee 168, 53115 Bonn, Germany
| | - Heike Brötz-Oesterhelt
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Carlos C Romão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Lígia M Saraiva
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
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14
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Busto N, Vigueras G, Cutillas N, García B, Ruiz J. Inert cationic iridium(III) complexes with phenanthroline-based ligands: application in antimicrobial inactivation of multidrug-resistant bacterial strains. Dalton Trans 2022; 51:9653-9663. [PMID: 35713595 DOI: 10.1039/d2dt00752e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The antimicrobial activity of a new series of heteroleptic iridium(III) complexes of the type [Ir(C^N)2(N^N)][PF6] (C^N = deprotonated 2-phenylbenzimidazole-κN, κC; N^N = phen (Ir1), dpq (Ir2), dppz (Ir3), dppn (Ir4), and dppz-idzo (Ir5)) was studied towards two Gram positive (vancomycin-resistant Enterococcus faecium and a methicillin-resistant Staphylococcus aureus) and two Gram negative (Acinetobacter baumanii and Pseudomonas aeruginosa) multidrug-resistant bacterial strains of clinical interest. Although the complexes were inactive towards Gram negative bacteria, their effectiveness against Gram positive strains was remarkable, especially for Ir1 and Ir2, the most bactericidal complexes that were even more active (10 times) than the fluoroquinolone antibiotic norfloxacin and displayed no toxicity in human kidney cells (HEK293). Mechanistic studies revealed that the cell wall and membrane of MRSA S. aureus remained intact on treatment with these compounds and that DNA was not their main target. It is important to note that the complexes were able to induce ROS generation, this being the feature key to their antimicrobial activity.
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Affiliation(s)
- Natalia Busto
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, E-09001, Burgos, Spain. .,Departamento de Ciencias de la Salud. Facultad de Ciencias de la Salud. Universidad de Burgos, Hospital Militar, Paseo de los Comendadores, s/n, 09001 Burgos, Spain.
| | - Gloria Vigueras
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30071 Murcia, Spain.
| | - Natalia Cutillas
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30071 Murcia, Spain.
| | - Begoña García
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, E-09001, Burgos, Spain.
| | - José Ruiz
- Departamento de Química Inorgánica, Universidad de Murcia, and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30071 Murcia, Spain.
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15
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Schindler K, Zobi F. Anticancer and Antibiotic Rhenium Tri- and Dicarbonyl Complexes: Current Research and Future Perspectives. Molecules 2022; 27:539. [PMID: 35056856 PMCID: PMC8777860 DOI: 10.3390/molecules27020539] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/23/2021] [Accepted: 01/12/2022] [Indexed: 12/20/2022] Open
Abstract
Organometallic compounds are increasingly recognized as promising anticancer and antibiotic drug candidates. Among the transition metal ions investigated for these purposes, rhenium occupies a special role. Its tri- and dicarbonyl complexes, in particular, attract continuous attention due to their relative ease of preparation, stability and unique photophysical and luminescent properties that allow the combination of diagnostic and therapeutic purposes, thereby permitting, e.g., molecules to be tracked within cells. In this review, we discuss the anticancer and antibiotic properties of rhenium tri- and dicarbonyl complexes described in the last seven years, mainly in terms of their structural variations and in vitro efficacy. Given the abundant literature available, the focus is initially directed on tricarbonyl complexes of rhenium. Dicarbonyl species of the metal ion, which are slowly gaining momentum, are discussed in the second part in terms of future perspective for the possible developments in the field.
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Affiliation(s)
| | - Fabio Zobi
- Department of Chemistry, Fribourg University, Chemin du Musée 9, 1700 Fribourg, Switzerland;
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16
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Nolan VC, Rafols L, Harrison J, Soldevila-Barreda JJ, Crosatti M, Garton NJ, Wegrzyn M, Timms DL, Seaton CC, Sendron H, Azmanova M, Barry NP, Pitto-Barry A, Cox JA. Indole-containing arene-ruthenium complexes with broad spectrum activity against antibiotic-resistant bacteria. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100099. [PMID: 35059676 PMCID: PMC8760505 DOI: 10.1016/j.crmicr.2021.100099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 11/10/2022] Open
Abstract
A new family of indole-containing arene ruthenium organometallic compounds are active against several bacterial species and drug resistant strains Bactericidal activity observed against various Gram negative, Gram positive and acid-fast bacteria, demonstrating broad-spectrum inhibitory activity Compound series exhibits low toxicity against human cells Shows considerable promise as next generation antibiotics
Antimicrobial resistant (AMR) bacteria are emerging and spreading globally, threatening our ability to treat common infectious diseases. The development of new classes of antibiotics able to kill or inhibit the growth of such AMR bacteria through novel mechanisms of action is therefore urgently needed. Here, a new family of indole-containing arene ruthenium organometallic compounds are screened against several bacterial species and drug resistant strains. The most active complex [(p-cym)Ru(O-cyclohexyl-1H-indole-2-carbothioate)Cl] (3) shows growth inhibition and bactericidal activity against different organisms (Acinetobacter baumannii, Mycobacterium abscessus, Mycobacterium tuberculosis, Staphylococcus aureus, Salmonella enterica serovar Typhi and Escherichia coli), demonstrating broad-spectrum inhibitory activity. Importantly, this compound series exhibits low toxicity against human cells. Owing to the novelty of the antibiotic family, their moderate cytotoxicity, and their inhibitory activity against Gram positive, Gram negative and acid-fast, antibiotic resistant microorganisms, this series shows significant promise for further development.
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17
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Sovari SN, Radakovic N, Roch P, Crochet A, Pavic A, Zobi F. Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection. Eur J Med Chem 2021; 226:113858. [PMID: 34562853 DOI: 10.1016/j.ejmech.2021.113858] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 11/25/2022]
Abstract
Antimicrobial resistance (AMR) is a major emerging threat to public health, causing serious issues in the successful prevention and treatment of persistent diseases. While the problem escalates, lack of financial incentive has lead major pharmaceutical companies to interrupt their antibiotic drug discovery programs. The World Health Organisation (WHO) has called for novel solutions outside the traditional development pathway, with emphasis on new classes of active compounds with non-classical mechanisms of action. Metal complexes are an untapped source of antibiotic potential owing to unique modes of action and a wider range of three-dimensional geometries as compared to purely organic compounds. In this study, we present the antimicrobial and antifungal efficacy of a family of rhenium tricarbonyl diimine complexes with varying ligands, charge and lipophilicity. Our study allowed the identification of potent and non-toxic complexes active in vivo against S. aureus infections at MIC doses as low as 300 ng/mL, as well as against C. albicans-MRSA mixed co-infection. The compounds are capable of suppressing the C. albicans morphogenetic yeast-to-hyphal transition, eradicating fungal-S. aureus co-infection, while showing no sign of cardio-, hepato-, hematotoxiciy or teratogenicity.
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Affiliation(s)
- Sara Nasiri Sovari
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland
| | - Natasa Radakovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade, Serbia
| | - Paul Roch
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland
| | - Aurélien Crochet
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade, Serbia.
| | - Fabio Zobi
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland.
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18
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Karges J, Seo H, Cohen SM. Synthesis of tetranuclear rhenium(I) tricarbonyl metallacycles. Dalton Trans 2021; 50:16147-16155. [PMID: 34679156 DOI: 10.1039/d1dt02435c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Re(I) tricarbonyl complexes have received much attention due to their attractive photochemical, electrochemical, and biological properties. Beyond simple mononuclear complexes, multinuclear assemblies offer greater structural diversity and properties. Despite previous reports on the preparation of di-, tri-, or tetranuclear Re(I) tricarbonyl assemblies, the synthesis of these supramolecular structures remains challenging due to overall low yields or tedious purification protocols. Herein, the facile preparation and characterization of tetranuclear Re(I) tricarbonyl metallacycles with a square geometry is reported using a tetrazole-based ligand. The synthesis of the metallacycle was optimized using different metal precursors, solvents, temperatures, and reagent concentrations. Finally, the scope of suitable tetrazole-based ligands was explored to produce several tetranuclear Re(I) tricarbonyl-based metallacycles.
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Affiliation(s)
- Johannes Karges
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Hyeonglim Seo
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Seth M Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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19
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Nasiri Sovari S, Kolly I, Schindler K, Cortat Y, Liu SC, Crochet A, Pavic A, Zobi F. Efficient Direct Nitrosylation of α-Diimine Rhenium Tricarbonyl Complexes to Structurally Nearly Identical Higher Charge Congeners Activable towards Photo-CO Release. Molecules 2021; 26:5302. [PMID: 34500734 PMCID: PMC8434269 DOI: 10.3390/molecules26175302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 11/17/2022] Open
Abstract
The reaction of rhenium α-diimine (N-N) tricarbonyl complexes with nitrosonium tetrafluoroborate yields the corresponding dicarbonyl-nitrosyl [Re(CO)2(NO)(N-N)X]+ species (where X = halide). The complexes, accessible in a single step in good yield, are structurally nearly identical higher charge congeners of the tricarbonyl molecules. Substitution chemistry aimed at the realization of equivalent dicationic species (intended for applications as potential antimicrobial agents), revealed that the reactivity of metal ion in [Re(CO)2(NO)(N-N)X]+ is that of a hard Re acid, probably due to the stronger π-acceptor properties of NO+ as compared to those of CO. The metal ion thus shows great affinity for π-basic ligands, which are consequently difficult to replace by, e.g., σ-donor or weak π-acids like pyridine. Attempts of direct nitrosylation of α-diimine fac-[Re(CO)3]+ complexes bearing π-basic OR-type ligands gave the [Re(CO)2(NO)(N-N)(BF4)][BF4] salt as the only product in good yield, featuring a stable Re-FBF3 bond. The solid state crystal structure of nearly all molecules presented could be elucidated. A fundamental consequence of the chemistry of [Re(CO)2(NO)(N-N)X]+ complexes, it that the same can be photo-activated towards CO release and represent an entirely new class of photoCORMs.
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Affiliation(s)
- Sara Nasiri Sovari
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
| | - Isabelle Kolly
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
| | - Kevin Schindler
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
| | - Youri Cortat
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
| | - Shing-Chi Liu
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
| | - Aurelien Crochet
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia;
| | - Fabio Zobi
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700 Fribourg, Switzerland; (S.N.S.); (I.K.); (K.S.); (Y.C.); (S.-C.L.); (A.C.)
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20
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Hess J. Rational approaches towards inorganic and organometallic antibacterials. Biol Chem 2021; 403:363-375. [PMID: 34253000 DOI: 10.1515/hsz-2021-0253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022]
Abstract
The occurrence of drug-resistant bacteria is drastically rising and new and effective antibiotic classes are urgently needed. However, most of the compounds in development are minor modifications of previously used drugs to which bacteria can easily develop resistance. The investigation of inorganic and organometallic compounds as antibiotics is an alternative approach that holds great promises due to the ability of such molecules to trigger metal-specific mechanisms of action, which results in lethal consequences for pathogens. In this review, a selection of concepts to rationally design inorganic and organometallic antibiotics is discussed, highlighting their advantages by comparing them to classical drug discovery programmes. The review concludes with a short perspective for the future of antibiotic drug development and the role metal-based compounds will play in the field.
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Affiliation(s)
- Jeannine Hess
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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21
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Coverdale JPC, Guy CS, Bridgewater HE, Needham RJ, Fullam E, Sadler PJ. Osmium-arene complexes with high potency towards Mycobacterium tuberculosis. Metallomics 2021; 13:mfab007. [PMID: 33693931 PMCID: PMC8026400 DOI: 10.1093/mtomcs/mfab007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/08/2021] [Indexed: 02/04/2023]
Abstract
The treatment of tuberculosis (TB) poses a major challenge as frontline therapeutic agents become increasingly ineffective with the emergence and spread of drug-resistant strains of Mycobacterium tuberculosis (Mtb). To combat this global health problem, new antitubercular agents with novel modes of action are needed. We have screened a close family of 17 organometallic half-sandwich Os(II) complexes [(arene)Os(phenyl-azo/imino-pyridine)(Cl/I)]+Y- containing various arenes (p-cymene, biphenyl, or terphenyl), and NMe2, F, Cl, or Br phenyl or pyridyl substituents, for activity towards Mtb in comparison with normal human lung cells (MRC5). In general, complexes with a monodentate iodido ligand were more potent than chlorido complexes, and the five most potent iodido complexes (MIC 1.25-2.5 µM) have an electron-donating Me2N or OH substituent on the phenyl ring. As expected, the counter anion Y (PF6-, Cl-, I-) had little effect on the activity. The pattern of potency of the complexes towards Mtb is similar to that towards human cells, perhaps because in both cases intracellular thiols are likely to be involved in their activation and their redox mechanism of action. The most active complex against Mtb is the p-cymene Os(II) NMe2-phenyl-azopyridine iodido complex (2), a relatively inert complex that also exhibits potent activity towards cancer cells. The uptake of Os from complex 2 by Mtb is rapid and peaks after 6 h, with temperature-dependence studies suggesting a major role for active transport. Significance to Metallomics Antimicrobial resistance is a global health problem. New advances are urgently needed in the discovery of new antibiotics with novel mechanisms of action. Half-sandwich organometallic complexes offer a versatile platform for drug design. We show that with an appropriate choice of the arene, an N,N-chelated ligand, and monodentate ligand, half-sandwich organo-osmium(II) complexes can exhibit potent activity towards Mycobacterium tuberculosis (Mtb), the leading cause of death from a single infectious agent. The patterns of activity of the 17 azo- and imino-pyridine complexes studied here towards Mtb and normal lung cells suggest a common redox mechanism of action involving intracellular thiols.
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Affiliation(s)
| | - Collette S Guy
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | | | - Russell J Needham
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
| | - Elizabeth Fullam
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Peter J Sadler
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
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22
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Huang Z, Wilson JJ. Therapeutic and Diagnostic Applications of Multimetallic Rhenium(I) Tricarbonyl Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100031] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhouyang Huang
- Department of Chemistry and Chemical Biology Cornell University Ithaca NY 14853 USA
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology Cornell University Ithaca NY 14853 USA
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23
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Pursuwani BH, Bhatt BS, Raval DB, Thakkar VR, Sharma J, Pathak C, Patel MN. Synthesis, characterization, and biological applications of pyrazole moiety bearing osmium(IV) complexes. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:593-618. [PMID: 34047249 DOI: 10.1080/15257770.2021.1921795] [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: 07/04/2019] [Revised: 04/17/2021] [Accepted: 04/21/2021] [Indexed: 10/21/2022]
Abstract
Osmium (IV) complexes with pyrazole nucleus containing ligands were synthesized. Os(IV) compounds were characterized using ESI-MS, ICP-OES, IR spectroscopy, electronic spectroscopy, conductance, and magnetic measurements. Whereas, ligands were characterized by heteronuclear spectroscopy, (1H and 13C), IR spectroscopy, and elemental analysis. All the compounds were tested for their potential to interact with HS-DNA by absorption titration, fluorescence spectroscopy, viscosity measurement, and docking study. The quenching constant and Stern Volmer constant values were calculated using fluorescence study. The synthesized compounds were studied for in-vitro bacteriostatic and cytotoxic activities. The cancer cell line studies of all the synthesized complexes were carried out on human lung cancer cells (A549).Supplemental data for this article is available online at https://doi.org/10.1080/15257770.2021.1921795 .
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Affiliation(s)
| | - Bhupesh S Bhatt
- Sardar Patel University, Chemistry, Vallabh Vidyanagar, India
| | - Dilip B Raval
- Sardar Patel University, Bioscience, Vallabh Vidyanagar, India
| | | | - Jyoti Sharma
- Amity Institute of Biotechnology, Amity University, Haryana, Gurgaon, India
| | - Chandramani Pathak
- Amity Institute of Biotechnology, Amity University, Haryana, Gurgaon, India
| | - Mohan N Patel
- Sardar Patel University, Chemistry, Vallabh Vidyanagar, India
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24
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Schäfer AB, Wenzel M. A How-To Guide for Mode of Action Analysis of Antimicrobial Peptides. Front Cell Infect Microbiol 2020; 10:540898. [PMID: 33194788 PMCID: PMC7604286 DOI: 10.3389/fcimb.2020.540898] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 09/18/2020] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial peptides (AMPs) are a promising alternative to classical antibiotics in the fight against multi-resistant bacteria. They are produced by organisms from all domains of life and constitute a nearly universal defense mechanism against infectious agents. No drug can be approved without information about its mechanism of action. In order to use them in a clinical setting, it is pivotal to understand how AMPs work. While many pore-forming AMPs are well-characterized in model membrane systems, non-pore-forming peptides are often poorly understood. Moreover, there is evidence that pore formation may not happen or not play a role in vivo. It is therefore imperative to study how AMPs interact with their targets in vivo and consequently kill microorganisms. This has been difficult in the past, since established methods did not provide much mechanistic detail. Especially, methods to study membrane-active compounds have been scarce. Recent advances, in particular in microscopy technology and cell biological labeling techniques, now allow studying mechanisms of AMPs in unprecedented detail. This review gives an overview of available in vivo methods to investigate the antibacterial mechanisms of AMPs. In addition to classical mode of action classification assays, we discuss global profiling techniques, such as genomic and proteomic approaches, as well as bacterial cytological profiling and other cell biological assays. We cover approaches to determine the effects of AMPs on cell morphology, outer membrane, cell wall, and inner membrane properties, cellular macromolecules, and protein targets. We particularly expand on methods to examine cytoplasmic membrane parameters, such as composition, thickness, organization, fluidity, potential, and the functionality of membrane-associated processes. This review aims to provide a guide for researchers, who seek a broad overview of the available methodology to study the mechanisms of AMPs in living bacteria.
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Affiliation(s)
| | - Michaela Wenzel
- Division of Chemical Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
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25
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Sovari SN, Vojnovic S, Bogojevic SS, Crochet A, Pavic A, Nikodinovic-Runic J, Zobi F. Design, synthesis and in vivo evaluation of 3-arylcoumarin derivatives of rhenium(I) tricarbonyl complexes as potent antibacterial agents against methicillin-resistant Staphylococcus aureus (MRSA). Eur J Med Chem 2020; 205:112533. [PMID: 32739550 DOI: 10.1016/j.ejmech.2020.112533] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/26/2022]
Abstract
We have prepared a series of ten 3-arylcoumarin molecules, their respective fac-[Re(CO)3(bpy)L]+ and fac-[Re(CO)3(L⁀L)Br] complexes and tested all compounds for their antimicrobial efficacy. Whereas the 3-arylcoumarin ligands are virtually inactive against the human-associated pathogens with minimum inhibitory concentrations (MICs) > 150 μM, when coordinated to the fac-[Re(CO)3]+ core, most of the resulting complexes showed remarkable antibacterial potency. Several rhenium complexes exhibit activity in nanomolar concentrations against Gram-positive pathogens such as Staphylococcus aureus strains, including methicillin-resistant S. aureus (MRSA) and Enterococcus faecium. The molecules do not affect bacterial cell membrane potential, but some of the most potent complexes strongly interact with DNA, indicating it as a possible target for their mode of action. In vivo studies in the zebrafish model showed that the complexes with anti-staphylococcal/MRSA activity were non-toxic to the organism even at much higher doses of the corresponding MICs. In the zebrafish-MRSA infection model, the complexes increased the survival rate of infected fish up to 100% and markedly reduced bacterial burden. Moreover, all rescued fish developed normally following the treatments with the metallic compounds.
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Affiliation(s)
- Sara Nasiri Sovari
- Department of Chemistry, University of Fribourg, Chemin Du Musée 10, 1700, Fribourg, Switzerland
| | - Sandra Vojnovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia
| | - Sanja Skaro Bogojevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia
| | - Aurelien Crochet
- Department of Chemistry, University of Fribourg, Chemin Du Musée 10, 1700, Fribourg, Switzerland
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia.
| | - Jasmina Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia
| | - Fabio Zobi
- Department of Chemistry, University of Fribourg, Chemin Du Musée 10, 1700, Fribourg, Switzerland.
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26
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Alves Ferreira D, Martins LMDRS, Fernandes AR, Martins M. A Tale of Two Ends: Repurposing Metallic Compounds from Anti-Tumour Agents to Effective Antibacterial Activity. Antibiotics (Basel) 2020; 9:antibiotics9060321. [PMID: 32545357 PMCID: PMC7344542 DOI: 10.3390/antibiotics9060321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 12/13/2022] Open
Abstract
The rise in antibiotic resistance coupled with the gap in the discovery of active molecules has driven the need for more effective antimicrobials while focusing the attention into the repurpose of already existing drugs. Here, we evaluated the potential antibacterial activity of one cobalt and two zinc metallic compounds previously reported as having anticancer properties. Compounds were tested against a range of Gram-positive and -negative bacteria. The determination of the minimum inhibitory and bactericidal concentrations (MIC/MBC) of the drugs were used to assess their potential antibacterial activity and their effect on bacterial growth. Motility assays were conducted by exposing the bacteria to sub-MIC of each of the compounds. The effect of sub-MIC of the compounds on the membrane permeability was measured by ethidium bromide (EtBr) accumulation assay. Cell viability assays were performed in human cells. Compound TS262 was the most active against the range of bacteria tested. No effect was observed on the motility or accumulation of EtBr for any of the bacteria tested. Cell viability assays demonstrated that the compounds showed a decrease in cell viability at the MIC. These results are promising, and further studies on these compounds can lead to the development of new effective antimicrobials.
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Affiliation(s)
- Daniela Alves Ferreira
- Department of Microbiology, Moyne Institute of Preventive Medicine, School of Genetics and Microbiology, Trinity College Dublin, the University of Dublin, College Green, Dublin 2, D02PN40, Ireland;
| | - Luísa M. D. R. S. Martins
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal;
| | - Alexandra R. Fernandes
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Campus de Caparica, 2829-516 Caparica, Portugal
- Correspondence: (A.R.F.); (M.M.); Tel.: +351-212948530 (ext. 11107) (A.R.F.); +353-1-896-1194 (M.M.)
| | - Marta Martins
- Department of Microbiology, Moyne Institute of Preventive Medicine, School of Genetics and Microbiology, Trinity College Dublin, the University of Dublin, College Green, Dublin 2, D02PN40, Ireland;
- Correspondence: (A.R.F.); (M.M.); Tel.: +351-212948530 (ext. 11107) (A.R.F.); +353-1-896-1194 (M.M.)
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27
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Recent Studies on the Antimicrobial Activity of Transition Metal Complexes of Groups 6–12. CHEMISTRY-SWITZERLAND 2020. [DOI: 10.3390/chemistry2020026] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Antimicrobial resistance is an increasingly serious threat to global public health that requires innovative solutions to counteract new resistance mechanisms emerging and spreading globally in infectious pathogens. Classic organic antibiotics are rapidly exhausting the structural variations available for an effective antimicrobial drug and new compounds emerging from the industrial pharmaceutical pipeline will likely have a short-term and limited impact before the pathogens can adapt. Inorganic and organometallic complexes offer the opportunity to discover and develop new active antimicrobial agents by exploiting their wide range of three-dimensional geometries and virtually infinite design possibilities that can affect their substitution kinetics, charge, lipophilicity, biological targets and modes of action. This review describes recent studies on the antimicrobial activity of transition metal complexes of groups 6–12. It focuses on the effectiveness of the metal complexes in relation to the rich structural chemical variations of the same. The aim is to provide a short vade mecum for the readers interested in the subject that can complement other reviews.
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28
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Frei A, Amado M, Cooper MA, Blaskovich MAT. Light-Activated Rhenium Complexes with Dual Mode of Action against Bacteria. Chemistry 2020; 26:2852-2858. [PMID: 31788867 PMCID: PMC7687258 DOI: 10.1002/chem.201904689] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/12/2019] [Indexed: 12/20/2022]
Abstract
New antibiotics and innovative approaches to kill drug-resistant bacteria are urgently needed. Metal complexes offer access to alternative modes of action but have only sparingly been investigated in antibacterial drug discovery. We have developed a light-activated rhenium complex with activity against drug-resistant S. aureus and E. coli. The activity profile against mutant strains combined with assessments of cellular uptake and synergy suggest two distinct modes of action.
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Affiliation(s)
- Angelo Frei
- Institute for Molecular BioscienceThe University of QueenslandSt. LuciaQueensland4072Australia
| | - Maite Amado
- Institute for Molecular BioscienceThe University of QueenslandSt. LuciaQueensland4072Australia
| | - Matthew A. Cooper
- Institute for Molecular BioscienceThe University of QueenslandSt. LuciaQueensland4072Australia
| | - Mark A. T. Blaskovich
- Institute for Molecular BioscienceThe University of QueenslandSt. LuciaQueensland4072Australia
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29
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Frei A. Metal Complexes, an Untapped Source of Antibiotic Potential? Antibiotics (Basel) 2020; 9:E90. [PMID: 32085590 PMCID: PMC7168053 DOI: 10.3390/antibiotics9020090] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/07/2020] [Accepted: 02/12/2020] [Indexed: 01/08/2023] Open
Abstract
With the widespread rise of antimicrobial resistance, most traditional sources for new drug compounds have been explored intensively for new classes of antibiotics. Meanwhile, metal complexes have long had only a niche presence in the medicinal chemistry landscape, despite some compounds, such as the anticancer drug cisplatin, having had a profound impact and still being used extensively in cancer treatments today. Indeed, metal complexes have been largely ignored for antibiotic development. This is surprising as metal compounds have access to unique modes of action and exist in a wider range of three-dimensional geometries than purely organic compounds. These properties make them interesting starting points for the development of new drugs. In this perspective article, , the encouraging work that has been done on antimicrobial metal complexes, mainly over the last decade, is highlighted. Promising metal complexes, their activity profiles, and possible modes of action are discussed and issues that remain to be addressed are emphasized.
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Affiliation(s)
- Angelo Frei
- Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St Lucia 4072, Australia
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30
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First Example of Cationic Cyclopentadienyliron Based Chromene Complexes and Polymers: Synthesis, Characterization, and Biological Applications. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01295-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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31
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Bauer EB, Haase AA, Reich RM, Crans DC, Kühn FE. Organometallic and coordination rhenium compounds and their potential in cancer therapy. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.014] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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32
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Divya D, Nagarajaprakash R, Vidhyapriya P, Sakthivel N, Manimaran B. Single-Pot Self-Assembly of Heteroleptic Mn(I)-Based Aminoquinonato-Bridged Ester/Amide-Functionalized Dinuclear Metallastirrups: Potential Anticancer and Visible-Light-Triggered CORMs. ACS OMEGA 2019; 4:12790-12802. [PMID: 31460403 PMCID: PMC6682026 DOI: 10.1021/acsomega.9b01438] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/12/2019] [Indexed: 05/23/2023]
Abstract
Multicomponent self-assembly of Mn2(CO)10, a bis-chelating aminoquinonato (ON∩ON) bridge (L), and an ester/amide-functionalized flexible neutral ditopic linker (L') has resulted into the formation of M2LL'-type manganese(I)-based dinuclear metallastirrups of general formula [{(CO)3Mn(μ-η4-L)Mn(CO)3}(μ-L')] (1-10). Compounds 1-10 were accomplished via orthogonal bonding of the aminoquinone ligand (2,5-bis(n-butylamino)-1,4-benzoquinone/2,5-bis(phenethylamino)-1,4-benzoquinone) and ditopic pyridyl ligand to manganese carbonyl. The resultant metallastirrups were characterized using elemental analyses and IR, UV-vis, 1H NMR, and electrospray ionization-mass spectroscopic techniques. The molecular structure of 6 was confirmed by single-crystal X-ray diffraction methods. Furthermore, molecular recognition capabilities of 1, 5, 7, and 9 were evaluated with aromatic compounds containing hydroxy/amine functionalities. Anticancer activities of compounds 1-3, 5-7, 9, and 10 were investigated against three cancer cell lines, that is, lung (A549), colon (HCT-15), and cervical (HeLa) as well as on normal cells (HEK 293). Compound 9 showed a broad-spectrum inhibition toward these cancer cells upon exposure to visible light. The myoglobin assay was performed using UV-vis absorption spectroscopy to investigate the visible-light-triggered CO release from 5 and 9 that could be related to their ability to effectively inhibit cancer cells. In addition, morphological studies confirmed the induction of autophagy due to the treatment of cancer cells using compound 9.
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Affiliation(s)
- Dhanaraj Divya
- Department
of Chemistry and Department of Biotechnology, Pondicherry
University, Puducherry 605014, India
| | - Ramamurthy Nagarajaprakash
- Chemical
Sciences Research Group, Division of Research & Development, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Pitchavel Vidhyapriya
- Department
of Chemistry and Department of Biotechnology, Pondicherry
University, Puducherry 605014, India
| | - Natarajan Sakthivel
- Department
of Chemistry and Department of Biotechnology, Pondicherry
University, Puducherry 605014, India
| | - Bala. Manimaran
- Department
of Chemistry and Department of Biotechnology, Pondicherry
University, Puducherry 605014, India
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33
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Miller RG, Vázquez-Hernández M, Prochnow P, Bandow JE, Metzler-Nolte N. A CuAAC Click Approach for the Introduction of Bidentate Metal Complexes to a Sulfanilamide-Derived Antibiotic Fragment. Inorg Chem 2019; 58:9404-9413. [PMID: 31246015 DOI: 10.1021/acs.inorgchem.9b01186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A simple "click-chemistry" approach was employed in order to functionalize the known antibiotic fragment sulfanilamide with a bidentate pyridyl-triazole pocket, which allowed for the synthesis of ruthenium(II) and rhenium(I) carbonyl chloride complexes. Six new complexes were prepared and comprehensively characterized, including five single crystal X-ray structures, photophysical characterization, and testing for antimicrobial activity. Interestingly, functionalization of the pyridine ring with an ortho-hydroxymethyl group resulted in a greater than 100-fold increase in the rate of ligand release in a dimethylsulfoxide solution. Subsequent studies indicated this process could be further accelerated by irradiation with 265 nm light. Structural characterization of four of the complexes indicates that this is the result of a lengthening and weakening of the Re-NPyridine bond (average (Ltri) = 2.19 Å vs LtriOH = 2.25 Å) due to the steric influence of the hydroxymethyl group. The organometallic rhenium(I) pyridyl-triazole functionality maintains its characteristic fluorescent properties despite the presence of the sulfonamide moiety. Two of the compounds showed modest antimicrobial activity against methicillin-resistant Staphylococcus aureus, whereas the structurally similar sulfamethoxazole alone showed no activity under the same conditions.
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Affiliation(s)
- Reece G Miller
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitaetsstrasse 150 , D-44801 , Bochum , Germany
| | - Melissa Vázquez-Hernández
- Applied Microbiology, Faculty of Biology and Biotechnology , Ruhr University Bochum , Universitaetsstrasse 150 , 44780 Bochum , Germany
| | - Pascal Prochnow
- Applied Microbiology, Faculty of Biology and Biotechnology , Ruhr University Bochum , Universitaetsstrasse 150 , 44780 Bochum , Germany
| | - Julia E Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology , Ruhr University Bochum , Universitaetsstrasse 150 , 44780 Bochum , Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitaetsstrasse 150 , D-44801 , Bochum , Germany
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34
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van Hilst QVC, Vasdev RAS, Preston D, Findlay JA, Scottwell SØ, Giles GI, Brooks HJL, Crowley JD. Synthesis, Characterisation and Antimicrobial Studies of some 2,6‐
bis
(1,2,3‐Triazol‐4‐yl)Pyridine Ruthenium(II) “Click” Complexes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900088] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Quinn V. C. van Hilst
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Roan A. S. Vasdev
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pharmacology and ToxicologyUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Dan Preston
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pharmacology and ToxicologyUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - James A. Findlay
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Synøve Ø. Scottwell
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
| | - Gregory I. Giles
- Department of Pharmacology and ToxicologyUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Heather J. L. Brooks
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
| | - James D. Crowley
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
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35
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Sierra MA, Casarrubios L, de la Torre MC. Bio-Organometallic Derivatives of Antibacterial Drugs. Chemistry 2019; 25:7232-7242. [PMID: 30730065 DOI: 10.1002/chem.201805985] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/05/2019] [Indexed: 12/11/2022]
Abstract
Overuse and misuse of antibacterial drugs has resulted in bacteria resistance and in an increase in mortality rates due to bacterial infections. Therefore, there is an imperative necessity of new antibacterial drugs. Bio-organometallic derivatives of antibacterial agents offer an opportunity to discover new active antibacterial drugs. These compounds are well-characterized products and, in several examples, their antibacterial activities have been studied. Both inhibition of the antibacterial activity and strong increase in the antibiotic activity of the parent drug have been found. The synthesis of the main classes of bio-organometallic derivatives of these drugs, as well as examples of the use of structure-activity relation (SAR) studies to increase the activity and to understand the mode of action of bio-organometallic antimicrobial peptides (BOAMPs) and platensimicyn bio-organometallic mimics is presented in this article.
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Affiliation(s)
- Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - María C de la Torre
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Química Orgánica General, Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
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36
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Ude Z, Kavanagh K, Twamley B, Pour M, Gathergood N, Kellett A, Marmion CJ. A new class of prophylactic metallo-antibiotic possessing potent anti-cancer and anti-microbial properties. Dalton Trans 2019; 48:8578-8593. [DOI: 10.1039/c9dt00250b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A family of metallo-antibiotics of general formula [Cu(N,N)(CipA)Cl] where N,N is a phenanthrene ligand and CipA is a derivative of the clinically used fluoroquinolone antibiotic ciprofloxacin – targeting immunocompromised cancer patients undergoing chemotherapy.
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Affiliation(s)
- Ziga Ude
- Centre for Synthesis and Chemical Biology
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | | | - Brendan Twamley
- School of Chemistry
- Trinity College Dublin
- University of Dublin College Green
- Dublin 2
- Ireland
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry
- Faculty of Pharmacy
- Charles University
- 500 05 Hradec Kralove
- Czech Republic
| | - Nicholas Gathergood
- ERA Chair of Green Chemistry
- Division of Chemistry
- Department of Chemistry and Biotechnology
- School of Science
- Tallinn University of Technology
| | - Andrew Kellett
- School of Chemical Sciences and the National Institute for Cellular Biotechnology
- Dublin City University
- Dublin 9
- Ireland
| | - Celine J. Marmion
- Centre for Synthesis and Chemical Biology
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
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37
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Oyarzo J, Bosque R, Toro P, Silva CP, Arancibia R, Font-Bardía M, Artigas V, Calvis C, Messeguer R, Klahn AH, López C. A novel type of organometallic 2-R-2,4-dihydro-1H-3,1-benzoxazine with R = [M(η5-C5H4)(CO)3] (M = Re or Mn) units. Experimental and computational studies of the effect of substituent R on ring-chain tautomerism. Dalton Trans 2019; 48:1023-1039. [DOI: 10.1039/c8dt03265c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Novel 2-cyrhetrenyl and cymantrenyl-2,4-dihydro-1H-3,1-benzoxazines.
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38
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Muñoz-Osses M, Godoy F, Fierro A, Gómez A, Metzler-Nolte N. New organometallic imines of rhenium(i) as potential ligands of GSK-3β: synthesis, characterization and biological studies. Dalton Trans 2018; 47:1233-1242. [PMID: 29299575 DOI: 10.1039/c7dt04344a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Substituted amino-piperazine derivatives were synthesized and used as precursors for the preparation of a series of new organometallic Re(i) imine complexes with the general formula [(η5-C5H4CH[double bond, length as m-dash]N-(CH2)5-Pz-R)Re(CO)3] (Pz-R: -alkyl or aryl piperazine). The piperazine-based ligands were designed to be potential inhibitors of GSK-3β kinase. All the ligands and complexes were fully characterized and evaluated against the HT-29 and PT-45 cancer cell lines, in which GSK-3β plays a crucial role. In this context, we carried out biological evaluation using the MTT colorimetric assay. In terms of structure activity relationship, our findings indicated improved biological activity when aromaticity increased in the organic ligands (3d). In addition, the presence of the rhenium fragment in the imines (5a-d) leads to better activity with IC50 values in the range of 25-100 μM. In addition, our experimental studies were complemented by computational studies, where the volume and electrostatic surface of the organic ligands and organometallic compounds as well as their binding to the kinase protein are calculated.
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Affiliation(s)
- Michelle Muñoz-Osses
- Laboratory of Organometallic Chemistry, Faculty of Chemistry and Biology, Universidad de Santiago de Chile, Avda. Libertador Bernardo O'Higgins 3363, Estación Central, Santiago, Chile.
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39
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Tricarbonylrhenium(I) complexes with the N-methylpyridine-2-carbothioamide ligand – Synthesis, characterization and cytotoxicity studies. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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40
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Kaczmarek R, Korczyński D, Królewska‐Golińska K, Wheeler KA, Chavez FA, Mikus A, Dembinski R. Organometallic Nucleosides: Synthesis and Biological Evaluation of Substituted Dicobalt Hexacarbonyl 2'-Deoxy-5-oxopropynyluridines. ChemistryOpen 2018; 7:237-247. [PMID: 29531887 PMCID: PMC5838391 DOI: 10.1002/open.201700168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 01/16/2023] Open
Abstract
Reactions of dicobalt octacarbonyl [Co2(CO)8] with 2'-deoxy-5-oxopropynyluridines and related compounds gave dicobalt hexacarbonyl nucleoside complexes (83-31 %). The synthetic outcomes were confirmed by X-ray structure determination of dicobalt hexacarbonyl 2'-deoxy-5-(4-hydroxybut-1-yn-1-yl)uridine, which exhibits intermolecular hydrogen bonding between a modified base and ribose. The electronic structure of this compound was characterized by the DFT calculations. The growth inhibition of HeLa and K562 cancer cell lines by organometallic nucleosides was examined and compared to that by alkynyl nucleoside precursors. Coordination of the dicobalt carbonyl moiety to the 2'-deoxy-5-alkynyluridines led to a significant increase in the cytotoxic potency. The cobalt compounds displayed antiproliferative activities with median inhibitory values (IC50) in the range of 20 to 80 μm for the HeLa cell line and 18 to 30 μm for the K562 cell line. Coordination of an acetyl-substituted cobalt nucleoside was expanded by using the 1,1-bis(diphenylphosphino)methane (dppm) ligand, which exhibited cytotoxicity at comparable levels. The formation of reactive oxygen species in the presence of cobalt compounds was determined in K562 cells. The results indicate that the mechanism of action for most antiproliferative cobalt compounds may be related to the induction of oxidative stress.
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Affiliation(s)
- Renata Kaczmarek
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Dariusz Korczyński
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Karolina Królewska‐Golińska
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Kraig A. Wheeler
- Department of ChemistryWhitworth University300 W. Hawthorne Rd.SpokaneWA99251USA
| | - Ferman A. Chavez
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| | - Agnieszka Mikus
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| | - Roman Dembinski
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
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41
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Lunagariya MV, Thakor KP, Patel NJ, Patel MN. Synthesis, characterization and biological application of cyclometalated heteroleptic platinum(II) complexes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Miral V. Lunagariya
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Khyati P. Thakor
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Nikita J. Patel
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Mohan N. Patel
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
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42
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Abd-El-Aziz AS, Agatemor C, Etkin N, Bissessur R, Overy D, Lanteigne M, McQuillan K, Kerr RG. Quaternized and Thiazole-Functionalized Free Radical-Generating Organometallic Dendrimers as Antimicrobial Platform against Multidrug-Resistant Microorganisms. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/25/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Alaa S. Abd-El-Aziz
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - Christian Agatemor
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - Nola Etkin
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - Rabin Bissessur
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - David Overy
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
- Department of Pathology and Microbiology; Atlantic Veterinary College; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - Martin Lanteigne
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - Katherine McQuillan
- Department of Chemistry; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
| | - Russell G. Kerr
- Nautilus Biosciences Canada Inc.; Duffy Research Center; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
- Department of Biomedical Sciences; Atlantic Veterinary College; University of Prince Edward Island; 550 University Avenue Charlottetown Prince Edward Island C1A 4P3 Canada
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43
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Gajera SB, Mehta JV, Kanthecha DN, Patel RR, Patel MN. Novel cytotoxic oxovanadium(IV) complexes: Influence of pyrazole‐incorporated heterocyclic scaffolds on their biological response. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3767] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sanjay B. Gajera
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Jugal V. Mehta
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Darshana N. Kanthecha
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Ravi R. Patel
- B. R. Doshi School of BioscienceSardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Mohan N. Patel
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
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44
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Abd-El-Aziz AS, Agatemor C, Etkin N. Antimicrobial resistance challenged with metal-based antimicrobial macromolecules. Biomaterials 2017; 118:27-50. [DOI: 10.1016/j.biomaterials.2016.12.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 11/30/2016] [Accepted: 12/02/2016] [Indexed: 12/24/2022]
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45
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Lunagariya MV, Thakor KP, Waghela BN, Vaidya FU, Pathak C, Patel MN. Design, synthesis, MTT assay, DNA interaction studies of platinum(II) complexes. J Biomol Struct Dyn 2017; 36:14-31. [DOI: 10.1080/07391102.2016.1268071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Miral V. Lunagariya
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India
| | - Khyati P. Thakor
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India
| | - Bhargav N. Waghela
- Department of Cell biology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
| | - Foram U. Vaidya
- Department of Cell biology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
| | - Chadramani Pathak
- Department of Cell biology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
| | - Mohan N. Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India
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46
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Lee LCC, Leung KK, Lo KKW. Recent development of luminescent rhenium(i) tricarbonyl polypyridine complexes as cellular imaging reagents, anticancer drugs, and antibacterial agents. Dalton Trans 2017; 46:16357-16380. [DOI: 10.1039/c7dt03465b] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This Perspective summarizes recent advances in the biological applications of luminescent rhenium(i) tricarbonyl polypyridine complexes.
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Affiliation(s)
| | - Kam-Keung Leung
- Department of Chemistry
- City University of Hong Kong
- P. R. China
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47
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Wieczorek A, Błauż A, Makal A, Rychlik B, Plażuk D. Synthesis and evaluation of biological properties of ferrocenyl–podophyllotoxin conjugates. Dalton Trans 2017; 46:10847-10858. [DOI: 10.1039/c7dt02107k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ferrocenyl–podophyllotoxin conjugates have been synthesised and their antiproliferative activity, influence on cell cycle, and interactions with tubulin were evaluated.
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Affiliation(s)
- Anna Wieczorek
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Łódź
- 91-403 Łódź
- Poland
| | - Andrzej Błauż
- Cytometry Lab
- Department of Molecular Biophysics
- Faculty of Biology and Environmental Protection
- University of Łódź
- 90-236 Łódź
| | - Anna Makal
- University of Warsaw
- Biological and Chemical
- Research Centre
- 02-096 Warsaw
- Poland
| | - Błażej Rychlik
- Cytometry Lab
- Department of Molecular Biophysics
- Faculty of Biology and Environmental Protection
- University of Łódź
- 90-236 Łódź
| | - Damian Plażuk
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Łódź
- 91-403 Łódź
- Poland
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48
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Kowalski K, Szczupak Ł, Saloman S, Steverding D, Jabłoński A, Vrček V, Hildebrandt A, Lang H, Rybarczyk-Pirek A. Cymantrene, Cyrhetrene and Ferrocene Nucleobase Conjugates: Synthesis, Structure, Computational Study, Electrochemistry and Antitrypanosomal Activity. Chempluschem 2016; 82:303-314. [DOI: 10.1002/cplu.201600462] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/04/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Konrad Kowalski
- Faculty of Chemistry; Department of Organic Chemistry; University of Łódź; Tamka 12 91403 Łódź Poland
| | - Łukasz Szczupak
- Faculty of Chemistry; Department of Organic Chemistry; University of Łódź; Tamka 12 91403 Łódź Poland
| | - Sebastian Saloman
- Technische Universität Chemnitz; Faculty of Natural Sciences; Institute of Chemistry; Inorganic Chemistry; 09107 Chemnitz Germany
| | - Dietmar Steverding
- Bob Champion Research & Education Building; Norwich Medical School; University of East Anglia; Norwich Research Park, Norwich NR4 7UQ United Kingdom
| | - Artur Jabłoński
- Faculty of Chemistry; Department of Organic Chemistry; University of Łódź; Tamka 12 91403 Łódź Poland
| | - Valerije Vrček
- Faculty of Pharmacy and Biochemistry; University of Zagreb; Ante Kovačića 1 10000 Zagreb Croatia
| | - Alexander Hildebrandt
- Technische Universität Chemnitz; Faculty of Natural Sciences; Institute of Chemistry; Inorganic Chemistry; 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz; Faculty of Natural Sciences; Institute of Chemistry; Inorganic Chemistry; 09107 Chemnitz Germany
| | - Agnieszka Rybarczyk-Pirek
- Faculty of Chemistry; Department of Theoretical and Structural Chemistry; University of Łódź; Pomorska 163/165 90236 Łódź Poland
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49
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Albada B, Metzler-Nolte N. Organometallic–Peptide Bioconjugates: Synthetic Strategies and Medicinal Applications. Chem Rev 2016; 116:11797-11839. [DOI: 10.1021/acs.chemrev.6b00166] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Nils Metzler-Nolte
- Inorganic
Chemistry I − Bioinorganic Chemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780-D Bochum, Germany
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50
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Gajera SB, Mehta JV, Patel MN. Design of Multifunctional IridiumIIICompounds as a Potential Therapeutic Agents from Basic Molecular Scaffolds. ChemistrySelect 2016. [DOI: 10.1002/slct.201600882] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sanjay B. Gajera
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar-388 120 Gujarat, India
| | - Jugal V. Mehta
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar-388 120 Gujarat, India
| | - Mohan N. Patel
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar-388 120 Gujarat, India
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