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Fang J, Gerschel P, Singh K, Apfel UP, Suntharalingam K. Cobalt(III)-Macrocyclic Scaffolds with Anti-Cancer Stem Cell Activity. Molecules 2024; 29:2743. [PMID: 38930809 PMCID: PMC11206342 DOI: 10.3390/molecules29122743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
Cobalt(III) compounds with tetradentate ligands have been widely employed to deliver cytotoxic and imaging agents into cells. A large body of work has focused on using cobalt(III)-cyclam scaffolds for this purpose. Here, we investigate the cytotoxic properties of cobalt(III) complexes containing 14-membered macrocycles related to cyclam. A breast cancer stem cell (CSC) in vitro model was used to gauge efficacy. Specifically, [Co(1,4,7,11-tetraazacyclotetradecane)Cl2]+ (1) and [Co(1-oxa-4,8,12-triazacyclotetradecane)Cl2]+ (2) were synthesised and characterised, and their breast CSC activity was determined. The cobalt(III) complexes 1 and 2 displayed micromolar potency towards bulk breast cancer cells and breast CSCs grown in monolayers. Notably, 1 and 2 displayed selective potency towards breast CSCs over bulk breast cancer cells (up to 4.5-fold), which was similar to salinomycin (an established breast CSC-selective agent). The cobalt(III) complexes 1 and 2 were also able to inhibit mammosphere formation at low micromolar doses (with respect to size and number). The mammopshere inhibitory effect of 2 was similar to that of salinomycin. Our studies show that cobalt(III) complexes with 1,4,7,11-tetraazacyclotetradecane and 1-oxa-4,8,12-triazacyclotetradecane macrocycles could be useful starting points for the development of new cobalt-based delivery systems that can transport cytotoxic and imaging agents into breast CSCs.
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Affiliation(s)
- Jiaxin Fang
- School of Chemistry, University of Leicester, Leicester LE1 7RH, UK; (J.F.); (K.S.)
| | - Philipp Gerschel
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany;
| | - Kuldip Singh
- School of Chemistry, University of Leicester, Leicester LE1 7RH, UK; (J.F.); (K.S.)
| | - Ulf-Peter Apfel
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany;
- Fraunhofer UMSICHT, Osterfelder Str. 3, 46047 Oberhausen, Germany
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2
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Bonsignore R, Trippodo E, Di Gesù R, Carreca AP, Rubino S, Spinello A, Terenzi A, Barone G. Novel half Salphen cobalt(III) complexes: synthesis, DNA binding and anticancer studies. Dalton Trans 2024; 53:6311-6322. [PMID: 38487871 DOI: 10.1039/d4dt00092g] [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: 04/04/2024]
Abstract
While platinum(II)-based drugs continue to be employed in cancer treatments, the escalating occurrence of severe side effects has spurred researchers to explore novel sources for potential therapeutic agents. Notably, cobalt(III) has emerged as a subject of considerable interest due to its ubiquitous role in human physiology. Several studies investigating the anticancer effects of Salphen complexes derived from cobalt(III) have unveiled intriguing antiproliferative properties. In a bid to enhance our understanding of this class of compounds, we synthesized and characterized two novel half Salphen cobalt(III) complexes. Both compounds exhibited notable stability, even in the presence of physiologically relevant concentrations of glutathione. The application of spectroscopic and computational methodologies unravelled their interactions with duplex and G4-DNAs, suggesting an external binding affinity for these structures, with preliminary indications of selectivity trends. Importantly, antiproliferative assays conducted on 3D cultured SW-1353 cancer cells unveiled a compelling anticancer activity at low micromolar concentrations, underscoring the potential therapeutic efficacy of this novel class of cobalt(III) complexes.
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Affiliation(s)
- Riccardo Bonsignore
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo 90128, Italy.
| | - Elisa Trippodo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo 90128, Italy.
| | | | | | - Simona Rubino
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo 90128, Italy.
| | - Angelo Spinello
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo 90128, Italy.
| | - Alessio Terenzi
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo 90128, Italy.
| | - Giampaolo Barone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo 90128, Italy.
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3
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Franco Machado J, Cordeiro S, Duarte JN, Costa PJ, Mendes PJ, Garcia MH, Baptista PV, Fernandes AR, Morais TS. Exploiting Co(III)-Cyclopentadienyl Complexes To Develop Anticancer Agents. Inorg Chem 2024; 63:5783-5804. [PMID: 38502532 PMCID: PMC10988555 DOI: 10.1021/acs.inorgchem.3c03696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
In recent years, organometallic complexes have attracted much attention as anticancer therapeutics aiming at overcoming the limitations of platinum drugs that are currently marketed. Still, the development of half-sandwich organometallic cobalt complexes remains scarcely explored. Four new cobalt(III)-cyclopentadienyl complexes containing N,N-heteroaromatic bidentate, and phosphane ligands were synthesized and fully characterized by elemental analysis, spectroscopic techniques, and DFT methods. The cytotoxicity of all complexes was determined in vitro by the MTS assay in colorectal (HCT116), ovarian (A2780), and breast (MDA-MB-231 and MCF-7) human cancer cell lines and in a healthy human cell line (fibroblasts). The complexes showed high cytotoxicity in cancer cell lines, mostly due to ROS production, apoptosis, autophagy induction, and disruption of the mitochondrial membrane. Also, these complexes were shown to be nontoxic in vivo in an ex ovo chick embryo yolk sac membrane (YSM) assay.
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Affiliation(s)
- João Franco Machado
- Centro
de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Sandra Cordeiro
- Associate
Laboratory i4HB − Institute for Health and Bioeconomy, NOVA
School of Science and Technology, NOVA University
Lisbon, 2819-516 Caparica, Portugal
- UCIBIO,
Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2819-516 Caparica, Portugal
| | - Joana N. Duarte
- Centro
de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Paulo J. Costa
- BioISI
− Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Paulo J. Mendes
- LAQV-REQUIMTE
(Polo de Évora), Escola de Ciências e Tecnologia, Universidade de Évora, R. Romão Ramalho 59, 7000-671 Évora, Portugal
| | - Maria Helena Garcia
- Centro
de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Pedro V. Baptista
- Associate
Laboratory i4HB − Institute for Health and Bioeconomy, NOVA
School of Science and Technology, NOVA University
Lisbon, 2819-516 Caparica, Portugal
- UCIBIO,
Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2819-516 Caparica, Portugal
| | - Alexandra R. Fernandes
- Associate
Laboratory i4HB − Institute for Health and Bioeconomy, NOVA
School of Science and Technology, NOVA University
Lisbon, 2819-516 Caparica, Portugal
- UCIBIO,
Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2819-516 Caparica, Portugal
| | - Tânia S. Morais
- Centro
de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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4
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Kumari S, Thakur M, Chauhan C, Kumari M. Synthesis, characterization, biological activity and computation-based efficacy of cobalt(II) complexes of biphenyl-2-ol against SARS-CoV-2 virus. J Biomol Struct Dyn 2023:1-15. [PMID: 37990487 DOI: 10.1080/07391102.2023.2283144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/06/2023] [Indexed: 11/23/2023]
Abstract
Cobalt(II) complexes of biphenyl-2-ol of composition, CoCl2-n(OC6H4C6H5-2)n(H2O)4 (where n = 1 or 2), were prepared by reacting cobaltous(II) chloride with equi- and bimolar ratios of sodium salt of biphenyl-2-ol. The structural characterization of the synthesized complexes was accomplished by NMR, FTIR, thermogravimetry (TGA), high resolution mass spectroscopy (HRMS), electronic spectroscopic techniques coupled with density functional theory (DFT). The stability of the complexes in different pH media of solvent was studied. Chemical reactivity parameters of the newly synthesized complexes, computed using DFT, indicated greater reactivity of complex 2 over complex 1 and free ligand as indicated by its low HOMO-LUMO energy gap corresponding to 1.71 eV. Molecular docking (MD) studies were carried out in order to study the binding affinities between amino acid residues of DNA duplex (PDB ID: 1BNA) and SARS-CoV-2 (PDB ID: 7T9K) with newly synthesized complexes. Complex 2 has shown promising antivirus behaviour with an inhibition constant value of 0.0423 µmol-1 with amino acid residues of SARS-CoV-2 virus. Toxicity of the complexes was predicted using ProTox-II online server. Antibacterial studies have indicated the complexes to exhibit greater efficacy than the free ligand, while the antioxidant activities have suggested them to display enhanced antioxidant behaviour as compared to reference compounds.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shalima Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Maridula Thakur
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Chetan Chauhan
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Meena Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla, India
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Islam MR, Akash S, Jony MH, Alam MN, Nowrin FT, Rahman MM, Rauf A, Thiruvengadam M. Exploring the potential function of trace elements in human health: a therapeutic perspective. Mol Cell Biochem 2023; 478:2141-2171. [PMID: 36637616 DOI: 10.1007/s11010-022-04638-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/08/2022] [Indexed: 01/14/2023]
Abstract
A trace element, known as a minor element, is a chemical element whose concentration is very low. They are divided into essential and non-essential classes. Numerous physiological and metabolic processes in both plants and animals require essential trace elements. These essential trace elements are so directly related to the metabolic and physiologic processes of the organism that either their excess or deficiency can result in severe bodily malfunction or, in the worst situations, death. Elements can be found in nature in various forms and are essential for the body to carry out its varied functions. Trace elements are crucial for biological, chemical, and molecular cell activity. Nutritional deficits can lead to weakened immunity, increased susceptibility to oral and systemic infections, delayed physical and mental development, and lower productivity. Trace element enzymes are involved in many biological and chemical processes. These compounds act as co-factors for a number of enzymes and serve as centers for stabilizing the structures of proteins and enzymes, allowing them to mediate crucial biological processes. Some trace elements control vital biological processes by attaching to molecules on the cell membrane's receptor site or altering the structure of the membrane to prevent specific molecules from entering the cell. Some trace elements are engaged in redox reactions. Trace elements have two purposes. They are required for the regular stability of cellular structures, but when lacking, they might activate alternate routes and induce disorders. Therefore, thoroughly understanding these trace elements is essential for maintaining optimal health and preventing disease.
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Affiliation(s)
- Md Rezaul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1207, Dhaka, Bangladesh
| | - Shopnil Akash
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1207, Dhaka, Bangladesh
| | - Maruf Hossain Jony
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1207, Dhaka, Bangladesh
| | - Md Noor Alam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1207, Dhaka, Bangladesh
| | - Feana Tasmim Nowrin
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1207, Dhaka, Bangladesh
| | - Md Mominur Rahman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1207, Dhaka, Bangladesh
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar, Khyber Pakhtunkhwa, Pakistan.
| | - Muthu Thiruvengadam
- Department of Applied Bioscience, College of Life and Environmental Sciences, Konkuk University, Seoul, 05029, South Korea.
- Department of Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Science, Chennai, 600077, Tamil Nadu, India.
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Villaman D, Vega A, Santa Maria de la Parra L, León IE, Levín P, Toro PM. Anticancer activity of Ni(II) and Zn(II) complexes based on new unsymmetrical salophen-type ligands: synthesis, characterization and single-crystal X-ray diffraction. Dalton Trans 2023; 52:10855-10868. [PMID: 37486008 DOI: 10.1039/d3dt00800b] [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: 07/25/2023]
Abstract
The discovery of new coordination compounds with anticancer properties is an active field of research due to the severe side effects of platinum-based compounds currently used in chemotherapy. In the search for new agents for the treatment of cancer, unsymmetrical N2O2-tetradentate ligand (H2L1 and H2L2) and their Ni(II) and Zn(II) asymmetric complexes (NiII-L1-2 and ZnII-L1-2) have been synthesized and fully characterized. 1H NMR studies revealed that the ligands and complexes were stable in mixtures of DMSO : D2O (9 : 1). Complementary UV-Vis studies confirmed that ZnII derivatives also exhibit high stability in mixtures DMSO : buffer (6 : 4) after 24 h. Single-crystal X-ray diffraction studies confirmed the molecular structures of H2L1, H2L2, NiII-L1, and NiII-L2. At the molecular level, complexes were completely planar without significant distortions of the square-planar geometry according to τ4 parameter. Furthermore, the crystalline structures revealed non-classical intermolecular interactions of the C-H⋯O and the Ni⋯Ni type. The ligands and complexes were screened against the human osteosarcoma (MG-63), human colon cancer (HCT-116), breast cancer (MDA-MB-231) cell lines, and non-cancerous cells (L929). H2L1 and H2L2 ligands not caused cytotoxic effects at a concentration of 100 μM, while NiII-L2, ZnII-L1, and ZnII-L2 complexes induce cytotoxic effects in all cell lines. NiII-L2 was a more active complex against MG-63 (3.9 ± 1.5) and HCT-116 (3.4 ± 1.7) cell lines with IC50 values in the low micromolar range. In addition, this compound was 10-, 5-, and 11-fold more potent than cisplatin in MG-63 (39 ± 1.8), HCT-116 (17.2), and MDA-MB-231 (131 ± 18), respectively. Three complexes exhibited great selectivity for tumoral cells with SI values ranging from 1.6 to 7.4.
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Affiliation(s)
- David Villaman
- Laboratorio de Química Inorgánica y Organometálica, Facultad de Cs. Química, Universidad de Concepción, Chile.
| | - Andrés Vega
- Universidad Andrés Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas, Av. República 498, Santiago, Chile
| | - Lucía Santa Maria de la Parra
- CEQUINOR (UNLP, CCT-CONICET La Plata, Asociado a CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 No. 1465, La Plata 1900, Argentina
| | - Ignacio E León
- CEQUINOR (UNLP, CCT-CONICET La Plata, Asociado a CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 No. 1465, La Plata 1900, Argentina
- Cátedra de Fisiopatología, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, La Plata 1900, Argentina
| | - Pedro Levín
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363, Estación Central, Santiago, Chile
| | - Patricia M Toro
- Instituto de Ciencias Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Talca, Chile.
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Martins DOS, Souza RAC, Freire MCLC, de Moraes Roso Mesquita NC, Santos IA, de Oliveira DM, Junior NN, de Paiva REF, Harris M, Oliveira CG, Oliva G, Jardim ACG. Insights into the role of the cobalt(III)-thiosemicarbazone complex as a potential inhibitor of the Chikungunya virus nsP4. J Biol Inorg Chem 2023; 28:101-115. [PMID: 36484824 PMCID: PMC9735056 DOI: 10.1007/s00775-022-01974-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 10/19/2022] [Indexed: 12/14/2022]
Abstract
Chikungunya virus (CHIKV) is the causative agent of chikungunya fever, a disease that can result in disability. Until now, there is no antiviral treatment against CHIKV, demonstrating that there is a need for development of new drugs. Studies have shown that thiosemicarbazones and their metal complexes possess biological activities, and their synthesis is simple, clean, versatile, and results in high yields. Here, we evaluated the mechanism of action (MOA) of a cobalt(III) thiosemicarbazone complex named [CoIII(L1)2]Cl based on its in vitro potent antiviral activity against CHIKV previously evaluated (80% of inhibition on replication). Furthermore, the complex has no toxicity in healthy cells, as confirmed by infecting BHK-21 cells with CHIKV-nanoluciferase in the presence of the compound, showing that [CoIII(L1)2]Cl inhibited CHIKV infection with the selective index of 3.26. [CoIII(L1)2]Cl presented a post-entry effect on viral replication, emphasized by the strong interaction of [CoIII(L1)2]Cl with CHIKV non-structural protein 4 (nsP4) in the microscale thermophoresis assay, suggesting a potential mode of action of this compound against CHIKV. Moreover, in silico analyses by molecular docking demonstrated potential interaction of [CoIII(L1)2]Cl with nsP4 through hydrogen bonds, hydrophobic and electrostatic interactions. The evaluation of ADME-Tox properties showed that [CoIII(L1)2]Cl presents appropriate lipophilicity, good human intestinal absorption, and has no toxicological effect as irritant, mutagenic, reproductive, and tumorigenic side effects.
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Affiliation(s)
- Daniel Oliveira Silva Martins
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenida Amazonas, 4C- Room 216, Umuarama, Uberlândia, MG, 38405-302, Brazil
- São Paulo State University, IBILCE, São José do Rio Preto, SP, Brazil
| | | | | | | | - Igor Andrade Santos
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenida Amazonas, 4C- Room 216, Umuarama, Uberlândia, MG, 38405-302, Brazil
| | - Débora Moraes de Oliveira
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenida Amazonas, 4C- Room 216, Umuarama, Uberlândia, MG, 38405-302, Brazil
| | - Nilson Nicolau Junior
- Molecular Modeling Laboratory, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia, Brazil
| | | | - Mark Harris
- Faculty of Biological Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK
| | - Carolina Gonçalves Oliveira
- Bioinorganic Chemistry Group, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 38408-100, Brazil.
| | - Glaucius Oliva
- Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - Ana Carolina Gomes Jardim
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenida Amazonas, 4C- Room 216, Umuarama, Uberlândia, MG, 38405-302, Brazil.
- São Paulo State University, IBILCE, São José do Rio Preto, SP, Brazil.
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Raducka A, Świątkowski M, Gobis K, Szymański P, Czylkowska A. In Silico ADME and Toxicity Prediction of Benzimidazole Derivatives and Its Cobalt Coordination Compounds. Synthesis, Characterization and Crystal Structure. Molecules 2022; 27:molecules27228011. [PMID: 36432108 PMCID: PMC9694894 DOI: 10.3390/molecules27228011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
As a result of the synthesis, three new solids, cobalt (II) coordination compounds with benzimidazole derivatives, and chlorides were obtained. The ligands that were used in the synthesis were specially synthesized and were commercially unavailable. During the synthesis, a single crystal of the complex with the L1 ligand was obtained and the crystal structure was refined. All coordination compounds were characterized by elemental analysis, infrared spectroscopy, and thermogravimetric analysis. All the obtained data allowed one to determine the formulas of the new compounds, as well as to determine the method of metal-ligand coordination. Thermal analysis allowed to know the temperature stability of the compounds, solids intermediate and final products of pyrolysis. Additionally, volatile decomposition and fragmentation products have been identified. The toxicity of the compounds and their bioavailability were determined using in silico methods. By predicting activity on cell lines, the potential use of compounds as chemotherapeutic agents has been specified. The blood-brain barrier crossing and the gastrointestinal absorption were defined. Pharmaceutical biodistribution was also simulated.
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Affiliation(s)
- Anita Raducka
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
- Correspondence: (A.R.); (A.C.)
| | - Marcin Świątkowski
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Katarzyna Gobis
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gen. Hallera 107, 80-416 Gdańsk, Poland
| | - Paweł Szymański
- Department of Pharmaceutical Chemistry, Drug Analyses and Radiopharmacy, Faculty of Pharmacy, Medical University of Lodz, Muszyńskiego 1, 90-151 Lodz, Poland
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163 Warsaw, Poland
| | - Agnieszka Czylkowska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
- Correspondence: (A.R.); (A.C.)
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Fathy A, Ibrahim ABM, Abd Elkhalik S, Villinger A, Abbas SM. Trivalent Cobalt Complexes with NNS Tridentate Thiosemicarbazones: Preparation, Structural Study and Investigation of Antibacterial Activity and Cytotoxicity against Human Breast Cancer Cells. INORGANICS 2022; 10:145. [DOI: 10.3390/inorganics10090145] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
New complexes of trivalent cobalt with substituted thiosemicarbazone ligands having an NNS donor system {HL1 = 4-(4-nitrophenyl)-1-((pyridin-2-yl)methylene)thiosemicarbazide and HL2 = 4-(2,5-dimethoxyphenyl)-1-((pyridin-2-yl)methylene)thiosemicarbazide} were synthesized via the in situ oxidation of divalent cobalt chloride accompanying its addition to the ligands. The complexes C1 and C2 were characterized via elemental (CHNS) analysis and 1H NMR, FT-IR and UV-Vis. spectroscopic data. Further, conductometric studies on the DMF solutions of the complexes indicated their 1:1 nature, and their diamagnetism revealed the low-spin trivalent oxidation state of the cobalt in the complexes. The X-ray diffraction analysis of complex C1 indicated that it crystallizes in the triclinic space group P-1. The metal exhibits an octahedral environment built by two anionic ligands bound via pyridine nitrogen, imine nitrogen and thiol sulfur atoms. The complex is counterbalanced by a chloride ion. In addition, two lattice water molecules were detected in the asymmetric unit of the unit cell. The ligand HL2 (20 mg/mL in DMSO) displayed inhibition zones of 10 mm against both S. aureus and E. coli, and the same concentration of the respective complex raised this activity to 15 and 12 mm against these bacterial strains, respectively. As a comparison, ampicillin inhibited these bacterial strains by 21 and 25 mm, respectively. Screening assay by HL1 on four human cancer cells revealed the most enhanced activity against the breast MCF-7 cells. The induced growth inhibitions in the MCF-7 cells by all compounds (0–100 μg/mL) have been detected. The ligands {HL1 and HL2} and complex C2 gave inhibitions with IC50 values of 52.4, 145.4 and 49.9 μM, respectively. These results are more meaningful in comparison with similar cobalt complexes, but less efficient compared with the inhibition with IC50 of 9.66 μM afforded by doxorubicin. In addition, doxorubicin, HL1 and HL2 induced cytotoxicity towards healthy BHK cells with IC50 values of 36.42, 54.8 and 110.6 μM, but surviving fractions of 66.1% and 62.7% of these cells were detected corresponding to a concentration of 100 μg/mL of the complexes (136.8 μM of C1 and 131.4 μM of C2).
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Dasgupta S, Kar K, Barua A, Ghosh D, Kabi B, Dewan K, Chandra A. A significantly non-toxic novel Cobalt(III) Schiff base complex induces apoptosis via G2-M cell cycle arrest in human breast cancer cell line MCF-7. Life Sci 2022; 308:120963. [PMID: 36113731 DOI: 10.1016/j.lfs.2022.120963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/01/2022] [Accepted: 09/10/2022] [Indexed: 11/28/2022]
Abstract
AIMS Metal complexes have ignited considerable interest in the field of chemotherapy after the serendipitous discovery of cisplatin but the severe toxicity of these platinum-based drugs compelled researchers to search for newer, more effective lesser toxic anticancer drugs. MATERIALS AND METHODS Structural analysis is done by different physicochemical techniques including X-ray single crystallography. Toxicity study has been done in normal Swiss albino mice. MTT assay assessed cell viability. Apoptosis, cell cycle arrest, and cell proliferation were assessed by FACS using Annexin V-PI, PI, and CFSE staining respectively. Western blot quantifies protein expression. While cell migration was studied by wound healing assay. KEY FINDINGS One-pot synthesis of a novel mononuclear cobalt(III)-Schiff base complex (1) (>99 % purity) and its complete characterization have been done. Cell viability assay showed that 1 (IC50 = 16.81 ± 1.33 μM) exhibits cytotoxicity at much lower concentration in comparison to oxaliplatin (IC50 = 31.4 ± 0.69 μM) against MCF-7 cells for 24 h of therapy without being overly toxic to human PBMCs (IC50 ≥ 60 μM). Additional in vitro studies demonstrated that 1 induces apoptosis via G2-M cell cycle arrest and reduces cell proliferation as well as cell migration in MCF-7 cells. In vivo subacute toxicity (28 days) and systemic chronic toxicity (40 days) studies were carried out in normal Swiss albino mice showed 1 is significantly nontoxic to the host. SIGNIFICANCE The readily synthesizable, significantly nontoxic cobalt complex with appreciable anticancer activity implies that it might be an effective chemotherapeutic agent for new-age anti-tumor medication.
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Affiliation(s)
- Sanchari Dasgupta
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St-Quentin-en-Yvelines, Université Paris-Saclay, 78035 Versailles Cedex, France
| | - Kanisha Kar
- Department of In Vitro Carcinogenesis and Cellular Chemotherapy, Chittaranjan National Cancer Institute, 37 S.P Mukherjee Road, Kolkata 700026, India
| | - Atish Barua
- Department of Developmental, Molecular and Chemical Biology, Tufts University, 150 Harrison Avenue, Boston, MA 02111, United States of America
| | - Diya Ghosh
- Department of In Vitro Carcinogenesis and Cellular Chemotherapy, Chittaranjan National Cancer Institute, 37 S.P Mukherjee Road, Kolkata 700026, India
| | - Bikash Kabi
- Department of In Vitro Carcinogenesis and Cellular Chemotherapy, Chittaranjan National Cancer Institute, 37 S.P Mukherjee Road, Kolkata 700026, India
| | - Koushik Dewan
- Department of Laboratory Medicine, School of Tropical Medicine, 108 CR Avenue, Kolkata 700073, India
| | - Arpita Chandra
- Department of In Vitro Carcinogenesis and Cellular Chemotherapy, Chittaranjan National Cancer Institute, 37 S.P Mukherjee Road, Kolkata 700026, India.
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11
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Abstract
The first appearance of SARS-CoV-2 is dated back to 2019. This new member of the coronavirus family has caused more than 5 million deaths worldwide up until the end of January 2022. At the moment, and after intensive vaccination programmes throughout the world, the pandemic is still active, whilst new mutations constantly appear. Researchers are working intensively to discover antiviral drugs to combat the severe cases in intensive care units, giving the overloaded hospital units a breather. Alongside various research projects focusing on developing small pharmaceutical molecules, a significant proportion of the research community has shifted towards paying attention to metal drugs. In this small review, we make brief reference to the use of metal drugs in therapeutics and provide some examples of metal drugs that are of extreme interest in the current pandemic. At the same time, we will also examine some of their promising mechanisms of action and possible effectiveness against COVID-19.
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Affiliation(s)
- Kyriacos Ioannou
- Department of Life and Health Sciences, University of Nicosia, 2417, Nicosia, Cyprus
| | - Manos C Vlasiou
- Department of Life and Health Sciences, University of Nicosia, 2417, Nicosia, Cyprus.
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12
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Kar K, Ghosh D, Kabi B, Chandra A. A concise review on cobalt Schiff base complexes as anticancer agents. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115890] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Kirin V, Demkin A, Sukhikh T, Ilyicheva T, Maksakov V. Cobalt complexes with biguanide derivatives – Synthesis, structure and antiviral activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131486] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Sethupathi M, Thulasinathan B, Sengottuvelan N, Ponnuchamy K, Perdih F, Alagarsamy A, Karthikeyan M. Macrocyclic "tet a"-Derived Cobalt(III) Complex with a N, N'-Disubstituted Hexadentate Ligand: Crystal Structure, Photonuclease Activity, and as a Photosensitizer. ACS OMEGA 2022; 7:669-682. [PMID: 35036733 PMCID: PMC8756598 DOI: 10.1021/acsomega.1c05306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
A cobalt(III) complex, [Co(L)]Cl (complex 1, where L = 1,8-[N,N-bis{(3-formyl-2-hydroxy-5-methyl)benzyl}]-1,4,8,11-tetraaza-5,5,7,12,12,14-hexamethylcyclotetradecane) with distorted octahedral geometry has been synthesized and characterized using various spectroscopic techniques. The structure of the ligand has remarkably rich hydrogen intermolecular interactions such as H···H, H···C/C···H, and H···O/O···H that vary with the presence of the metal ion, and the structure of complex 1 has Cl···H interactions; this result has been proved by Hirshfeld surface and two-dimensional (2D) fingerprint maps analyses. The complex exhibits a quasi-reversible Co(III)/Co(II) redox couple with E 1/2 = -0.76 V. Calf thymus DNA (CT DNA) binding abilities of the ligand and complex 1 were confirmed by spectroscopic and electrochemical analyses. According to absorption studies, the ligand and complex 1 bind to CT DNA via intercalative binding mode, with intrinsic binding strengths of 1.41 × 103 and 8.64 × 103 M-1, respectively. A gel electrophoresis assay shows that complex 1 promotes the pUC19 DNA cleavage under dark and light irradiation conditions. Complex 1 has superior antimicrobial activity than the ligand. The cytotoxicity of complex 1 was tested against MDA-MB-231 breast cancer cells with values of IC50 of 1.369 μg mL-1 in the dark and 0.9034 μg mL-1 after light irradiation. Besides, cell morphological studies confirmed the morphological changes with AO/EB dual staining, reactive oxygen species (ROS) staining, mitochondria staining, and Hoechst staining on MDA-MB-231 cancer cells by fluorescence microscopy. Complex 1 was found to be a potent antiproliferative agent against MDA-MB-231 cells, and it can induce mitochondrial-mediated and caspase-dependent apoptosis with activation of downregulated caspases. The biotoxicity assay of complex 1 on the development of Artemia nauplii was evaluated at an IC50 value of 200 μg mL-1 and with excellent biocompatibility.
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Affiliation(s)
- Murugan Sethupathi
- Department
of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | | | - Nallathambi Sengottuvelan
- Department
of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
- Department
of Chemistry (DDE), Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Kumar Ponnuchamy
- Food
Chemistry and Molecular Cancer Biology Laboratory, Department of Animal
Health and Management, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Franc Perdih
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, 1000 Ljubljana, Slovenia
| | - Arun Alagarsamy
- Department
of Microbiology, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Muthusamy Karthikeyan
- Pharmacogenomics
and Computational Biology Laboratory, Department of Bioinformatics, Alagappa University, Karaikudi 630004, Tamil
Nadu, India
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15
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Darii M, Beleaev ES, Kravtsov VC, Bourosh P, Chumakov Y, Hauser J, Decurtins S, Liu SX, Sultanova O, Baca SG. Crystalline multicomponent compounds involving hexaammine cobalt( iii) cations. NEW J CHEM 2022. [DOI: 10.1039/d2nj01655a] [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
Among nine synthesized multicomponent compounds involving hexaammine cobalt(iii) cations and N-, N,O- and O-donor organic moieties, the compound [Co(NH3)6]Cl3·2(phen)·3H2O shows the best biological activity against plant pathogenic bacteria.
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Affiliation(s)
- Mariana Darii
- Institute of Applied Physics, Academiei 5, MD-2028 Chisinau, R. Moldova
| | | | | | - Paulina Bourosh
- Institute of Applied Physics, Academiei 5, MD-2028 Chisinau, R. Moldova
| | - Yurii Chumakov
- Institute of Applied Physics, Academiei 5, MD-2028 Chisinau, R. Moldova
| | - Jürg Hauser
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012-Bern, Switzerland
| | - Silvio Decurtins
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012-Bern, Switzerland
| | - Shi-Xia Liu
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012-Bern, Switzerland
| | - Olga Sultanova
- Practical Scientific Institute of Horticulture and Food Technology, Vierul 59, MD-2070 Chisinau, R. Moldova
| | - Svetlana G. Baca
- Institute of Applied Physics, Academiei 5, MD-2028 Chisinau, R. Moldova
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16
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Synthesis and antiproliferative activity of novel organometallic cobalt(III) complex encapsulated in polydiacetylene-phospholipid nanoformulation. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Herpes Simplex Virus Glycoprotein B Mutations Define Structural Sites in Domain I, the Membrane Proximal Region, and the Cytodomain That Regulate Entry. J Virol 2021; 95:e0105021. [PMID: 34431697 DOI: 10.1128/jvi.01050-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The viral fusion protein glycoprotein B (gB) is conserved in all herpesviruses and is essential for virus entry. During entry, gB fuses viral and host cell membranes by refolding from a prefusion to a postfusion form. We previously introduced three structure-based mutations (gB-I671A/H681A/F683A) into the domain V arm of the gB ectodomain that resulted in reduced cell-cell fusion. A virus carrying these three mutations (called gB3A) displayed a small-plaque phenotype and remarkably delayed entry into cells. To identify mutations that could counteract this phenotype, we serially passaged the gB3A virus and selected for revertant viruses with increased plaque sizes. Genomic sequencing revealed that the revertant viruses had second-site mutations in gB, including E187A, M742T, and S383F/G645R/V705I/V880G. Using expression constructs encoding these mutations, only gB-V880G was shown to enhance cell-cell fusion. In contrast, all of the revertant viruses showed enhanced entry kinetics, underscoring the fact that cell-cell fusion and virus-cell fusion are different. The results indicate that mutations in three different regions of gB (domain I, the membrane proximal region, and the cytoplasmic tail domain) can counteract the slow-entry phenotype of gB3A virus. Mapping these compensatory mutations to prefusion and postfusion structural models suggests sites of intramolecular functional interactions with the gB domain V arm that may contribute to the gB fusion function. IMPORTANCE The nine human herpesviruses are ubiquitous and cause a range of diseases in humans. Glycoprotein B (gB) is an essential viral fusion protein that is conserved in all herpesviruses. During host cell entry, gB mediates virus-cell membrane fusion by undergoing a conformational change. Structural models for the prefusion and postfusion forms of gB exist, but the details of how the protein converts from one to the other are unclear. We previously introduced structure-based mutations into gB that inhibited virus entry and fusion. By passaging this entry-deficient virus over time, we selected second-site mutations that partially restore virus entry. The locations of these mutations suggest regulatory sites that contribute to fusion and gB refolding during entry. gB is a target of neutralizing antibodies, and defining how gB refolds during entry could provide a basis for the development of fusion inhibitors for future research or clinical use.
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18
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Paiva REF, Peterson EJ, Malina J, Zoepfl M, Hampton JD, Johnson WE, Graminha A, Ourahmane A, McVoy MA, Brabec V, Berners‐Price SJ, Farrell NP. On the Biology of Werner's Complex. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Raphael E. F. Paiva
- Institute for Glycomics Griffith University Gold Coast Campus Southport Qld. 4222 Australia
| | - Erica J. Peterson
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
- Massey Cancer Center Virginia Commonwealth University Richmond VA 23298-0037 USA
| | - Jaroslav Malina
- Institute of Biophysics Czech Academy of Sciences Kralovopolska 135 61265 Brno Czech Republic
| | - Mary Zoepfl
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
| | - J. David Hampton
- Massey Cancer Center Virginia Commonwealth University Richmond VA 23298-0037 USA
- Department of Biochemistry and Molecular Biology Virginia Commonwealth University Richmond Virginia 23298-0033 USA
| | - Wyatt E. Johnson
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
| | - Angelica Graminha
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
| | - Amine Ourahmane
- Department of Pediatrics Virginia Commonwealth University Richmond VA 23298-0163 USA
| | - Michael A. McVoy
- Department of Pediatrics Virginia Commonwealth University Richmond VA 23298-0163 USA
| | - Viktor Brabec
- Institute of Biophysics Czech Academy of Sciences Kralovopolska 135 61265 Brno Czech Republic
| | - Susan J. Berners‐Price
- Institute for Glycomics Griffith University Gold Coast Campus Southport Qld. 4222 Australia
| | - Nicholas P. Farrell
- Institute for Glycomics Griffith University Gold Coast Campus Southport Qld. 4222 Australia
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
- Massey Cancer Center Virginia Commonwealth University Richmond VA 23298-0037 USA
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19
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de Paiva REF, Peterson EJ, Malina J, Zoepfl M, Hampton JD, Johnson WE, Graminha A, Ourahmane A, McVoy MA, Brabec V, Berners-Price SJ, Farrell NP. On the Biology of Werner's Complex. Angew Chem Int Ed Engl 2021; 60:17123-17130. [PMID: 34105220 PMCID: PMC8464317 DOI: 10.1002/anie.202105019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/30/2021] [Indexed: 11/05/2022]
Abstract
Werner's Complex, as a cationic coordination complex (CCC), has hitherto unappreciated biological properties derived from its binding affinity to highly anionic biomolecules such as glycosaminoglycans (GAGs) and nucleic acids. Competitive inhibitor and spectroscopic assays confirm the high affinity to GAGs heparin, heparan sulfate (HS), and its pentasaccharide mimetic Fondaparinux (FPX). Functional consequences of this affinity include inhibition of FPX cleavage by bacterial heparinase and mammalian heparanase enzymes with inhibition of cellular invasion and migration. Werner's Complex is a very efficient condensing agent for DNA and tRNA. In proof-of-principle for translational implications, it is demonstrated to display antiviral activity against human cytomegalovirus (HCMV) at micromolar concentrations with promising selectivity. Exploitation of non-covalent hydrogen-bonding and electrostatic interactions has motivated the unprecedented discovery of these properties, opening new avenues of research for this iconic compound.
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Affiliation(s)
- Raphael E F de Paiva
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Qld., 4222, Australia
| | - Erica J Peterson
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298-0037, USA
| | - Jaroslav Malina
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, 61265, Brno, Czech Republic
| | - Mary Zoepfl
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
| | - J David Hampton
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298-0037, USA
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia, 23298-0033, USA
| | - Wyatt E Johnson
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
| | - Angelica Graminha
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
| | - Amine Ourahmane
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298-0163, USA
| | - Michael A McVoy
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298-0163, USA
| | - Viktor Brabec
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, 61265, Brno, Czech Republic
| | - Susan J Berners-Price
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Qld., 4222, Australia
| | - Nicholas P Farrell
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Qld., 4222, Australia
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298-0037, USA
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20
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Wahab NZA, Azizul A, Ibrahim N. Phytochemistry, cytotoxicity and antiviral activity of Catharanthus roseus. IRANIAN JOURNAL OF MICROBIOLOGY 2021; 12:460-465. [PMID: 33604002 PMCID: PMC7867705 DOI: 10.18502/ijm.v12i5.4608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Background and Objectives: Catharanthus roseus is generally used to treat many diseases in folklore remedies. The present study is aimed at determining phytochemical constituents, cytotoxicity and antiviral activities for crude extract of the plant. Materials and Methods: The whole plant of C. roseus was extracted using methanol extraction method. Phytochemical qualitative screening was carried out for C. roseus extract according to standard procedures used to test for the presence of alkaloid, saponin, terpenoid and steroid. Cytotoxicity was assessed using 3-(4,5-dimethylthiazol-2,5-diphenyltetrazolium bromide (MTT) assay. Plaque reduction assays were carried out to evaluate the antiviral activity of C. roseus extract against herpes simplex virus type 1 (HSV-1). These include post-treatment, pre-treatment and virucidal assays. Results: C. roseus extract contain secondary metabolites such as alkaloid, saponin and terpenoid but does not contain steroid. Cytotoxicity screening against Vero cells using MTT assay showed that the CC50 values for crude extract of C. roseus was 0.5 mg/mL. The extract prepared from C. roseus possesses phytochemical compound that was non-cytotoxic to the cell with potential antiviral activity. Plaque reduction assays against herpes simplex virus type 1 (HSV-1) showed that the selective indices (SI = CC50 / EC50) of C. roseus extract in post-treatment, pre-treatment and virucidal assays were 36, 20 and 4.7 respectively. The results revealed that the extract prepared from C. roseus possesses phytochemical compound that was non-cytotoxic to the cell with potential antiviral activity. Conclusion: This study showed that C. roseus extract has promising potential to be explored as anti-HSV-1 agent regardless of the mode of treatment.
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Affiliation(s)
- Noor Zarina Abd Wahab
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | - Aziah Azizul
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | - Nazlina Ibrahim
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan, Bangi, Malaysia
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21
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Liao WH, Song XQ, Kong YJ, Bao RD, Li FF, Zhou J, Zhao QH, Xu JY, Xie N, Xie MJ. A novel Schiff base cobalt(III) complex induces a synergistic effect on cervical cancer cells by arresting early apoptosis stage. Biometals 2021; 34:277-289. [PMID: 33389333 DOI: 10.1007/s10534-020-00278-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/27/2020] [Indexed: 10/22/2022]
Abstract
A new schiff base cobalt(III) complex [N,N'-bis(2'-hydroxyphenylacetone)-o-ethanediamine] cobalt(III) (M3) has been synthesized and characterized by single X-ray crystallography. The cytotoxicity of complex M3 was evaluated against HeLa, LoVo, A549, A549/cis cancer cell lines, and the normal cell lines LO2 by MTT assays. The IC50 is in the range of 6.27-22.68 μM, which is somewhat lower than cisplatin on the basis of platinum molar concentration. Furthermore, anticancer mechanistic studies showed that the complex M3 inhibited cell proliferation by blocking DNA synthesis and then acted on nuclear division of HeLa cells over time. Moreover, western blot analysis indicated M3 dramatically decreased the target protein c-Myc and KLF5 expression levels, and activated many signaling pathways including ER stress, apoptosis, cell cycle and DNA damage in HeLa. M3 did not affect proteasomal activity.
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Affiliation(s)
- Wen-Hui Liao
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, Yunnan, China
| | - Xue-Qing Song
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Yan-Jie Kong
- Biobank, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, 518035, China
| | - Rui-Dan Bao
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, Yunnan, China
| | - Fang-Fang Li
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, Yunnan, China
| | - Jie Zhou
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, Yunnan, China
| | - Qi-Hua Zhao
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, Yunnan, China
| | - Jing-Yuan Xu
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China.
| | - Ni Xie
- Biobank, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, 518035, China.
| | - Ming-Jin Xie
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, Yunnan, China.
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22
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Maldonado N, Amo-Ochoa P. The role of coordination compounds in virus research. Different approaches and trends. Dalton Trans 2021; 50:2310-2323. [PMID: 33496298 DOI: 10.1039/d0dt04066e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This article aims to provide an overview of the studies focused on using coordination compounds as antiviral agents against different types of viruses. We present various strategies so far used to this end. This article is divided into two sections. The first collects the series of designed antiviral drugs based on coordination compounds. This approach has been developed for many years, starting from the 70s with the discovery of cis-platin (cis-DDP). It has been mainly focused on studying the synergistic effect of a wide variety of new compounds obtained by combining metal ions with organic antiviral ligands. Then, we collect various strategies analyzing the coordination compounds interacting with viruses using different processes such as wrapping viruses, rapid detection of RNA or DNA virus, or nanocarriers. These recent and novel insights help to study viruses from other points of view, allowing to measure their physical and chemical properties. We also highlight a section in which the issue of viruses from a disinfection viewpoint is addressed, using coordination compounds as a tool able to control the release of antiviral and biocide agents. This is an emerging and promising field but this approach is actually little developed. We finally provide a section with a general conclusion and perspectives.
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Affiliation(s)
- Noelia Maldonado
- Department of Inorganic Chemistry, Autonomous University of Madrid, E-28049 Madrid, Spain.
| | - Pilar Amo-Ochoa
- Department of Inorganic Chemistry, Autonomous University of Madrid, E-28049 Madrid, Spain. and Institute for Advanced Research in Chemistry (IADCHEM). Universidad Autónoma de Madrid, 28049 Madrid, Spain
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23
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Mondal SS, Jaiswal N, Bera PS, Tiwari RK, Behera JN, Chanda N, Ghosal S, Saha TK. Cu (II) and Co (II/III) complexes of N,O‐chelated Schiff base ligands: DNA interaction, protein binding, cytotoxicity, cell death mechanism and reactive oxygen species generation studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shyam Sundar Mondal
- Department of Chemistry National Institute of Technology Durgapur 713209 India
| | - Namita Jaiswal
- Department of Chemistry National Institute of Technology Durgapur 713209 India
| | - Partha Sarathi Bera
- Department of Chemistry National Institute of Technology Durgapur 713209 India
| | - Ranjay K. Tiwari
- School of Chemical Sciences National Institute of Science Education and Research Bhubaneswar 752050 India
- Chemical Sciences Homi Bhabha National Institute Mumbai 400094 India
| | - Jogendra Nath Behera
- School of Chemical Sciences National Institute of Science Education and Research Bhubaneswar 752050 India
- Chemical Sciences Homi Bhabha National Institute Mumbai 400094 India
| | - Nripen Chanda
- Department of Materials Processing and Microsystems Laboratory CSIR‐Central Mechanical Engineering Research Institute Durgapur 713209 India
| | - Subhas Ghosal
- Department of Chemistry National Institute of Technology Durgapur 713209 India
| | - Tanmoy Kumar Saha
- Department of Chemistry National Institute of Technology Durgapur 713209 India
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24
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de Paiva REF, Marçal Neto A, Santos IA, Jardim ACG, Corbi PP, Bergamini FRG. What is holding back the development of antiviral metallodrugs? A literature overview and implications for SARS-CoV-2 therapeutics and future viral outbreaks. Dalton Trans 2020; 49:16004-16033. [PMID: 33030464 DOI: 10.1039/d0dt02478c] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In light of the Covid-19 outbreak, this review brings together historical and current literature efforts towards the development of antiviral metallodrugs. Classical compounds such as CTC-96 and auranofin are discussed in depth, as pillars for future metallodrug development. From the recent literature, both cell-based results and biophysical assays against potential viral biomolecule targets are summarized here. The comprehension of the biomolecular targets and their interactions with coordination compounds are emphasized as fundamental strategies that will foment further development of metal-based antivirals. We also discuss other possible and unexplored methods for unveiling metallodrug interactions with biomolecules related to viral replication and highlight the specific challenges involved in the development of antiviral metallodrugs.
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Affiliation(s)
- Raphael E F de Paiva
- Department of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Sao Paulo, SP - 05508-000, Brazil.
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25
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Substitution-inert polynuclear platinum compounds inhibit human cytomegalovirus attachment and entry. Antiviral Res 2020; 184:104957. [DOI: 10.1016/j.antiviral.2020.104957] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 12/25/2022]
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26
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Anthony EJ, Bolitho EM, Bridgewater HE, Carter OWL, Donnelly JM, Imberti C, Lant EC, Lermyte F, Needham RJ, Palau M, Sadler PJ, Shi H, Wang FX, Zhang WY, Zhang Z. Metallodrugs are unique: opportunities and challenges of discovery and development. Chem Sci 2020; 11:12888-12917. [PMID: 34123239 PMCID: PMC8163330 DOI: 10.1039/d0sc04082g] [Citation(s) in RCA: 319] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022] Open
Abstract
Metals play vital roles in nutrients and medicines and provide chemical functionalities that are not accessible to purely organic compounds. At least 10 metals are essential for human life and about 46 other non-essential metals (including radionuclides) are also used in drug therapies and diagnostic agents. These include platinum drugs (in 50% of cancer chemotherapies), lithium (bipolar disorders), silver (antimicrobials), and bismuth (broad-spectrum antibiotics). While the quest for novel and better drugs is now as urgent as ever, drug discovery and development pipelines established for organic drugs and based on target identification and high-throughput screening of compound libraries are less effective when applied to metallodrugs. Metallodrugs are often prodrugs which undergo activation by ligand substitution or redox reactions, and are multi-targeting, all of which need to be considered when establishing structure-activity relationships. We focus on early-stage in vitro drug discovery, highlighting the challenges of evaluating anticancer, antimicrobial and antiviral metallo-pharmacophores in cultured cells, and identifying their targets. We highlight advances in the application of metal-specific techniques that can assist the preclinical development, including synchrotron X-ray spectro(micro)scopy, luminescence, and mass spectrometry-based methods, combined with proteomic and genomic (metallomic) approaches. A deeper understanding of the behavior of metals and metallodrugs in biological systems is not only key to the design of novel agents with unique mechanisms of action, but also to new understanding of clinically-established drugs.
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Affiliation(s)
- Elizabeth J Anthony
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Elizabeth M Bolitho
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Hannah E Bridgewater
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Oliver W L Carter
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Jane M Donnelly
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Cinzia Imberti
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Edward C Lant
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Frederik Lermyte
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
- Department of Chemistry, Technical University of Darmstadt Alarich-Weiss-Strasse 4 64287 Darmstadt Germany
| | - Russell J Needham
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Marta Palau
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Peter J Sadler
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Huayun Shi
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Fang-Xin Wang
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Wen-Ying Zhang
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Zijin Zhang
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
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27
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Fernandes LDP, Silva JMB, Martins DOS, Santiago MB, Martins CHG, Jardim ACG, Oliveira GS, Pivatto M, Souza RAC, Franca EDF, Deflon VM, Machado AEH, Oliveira CG. Fragmentation Study, Dual Anti-Bactericidal and Anti-Viral Effects and Molecular Docking of Cobalt(III) Complexes. Int J Mol Sci 2020; 21:ijms21218355. [PMID: 33171773 PMCID: PMC7664407 DOI: 10.3390/ijms21218355] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 01/22/2023] Open
Abstract
Considering our previous findings on the remarkable activity exhibited by cobalt(III) with 2-acetylpyridine-N(4)-R-thiosemicarbazone (Hatc-R) compounds against Mycobacterium tuberculosis, the present study aimed to explored new structure features of the complexes of the type [Co(atc--R)2]Cl, where R = methyl (Me, 1) or phenyl (Ph, 2) (13C NMR, high-resolution mass spectrometry, LC-MS/MS, fragmentation study) together with its antibacterial and antiviral biological activities. The minimal inhibitory and minimal bactericidal concentrations (MIC and MBC) were determined, as well as the antiviral potential of the complexes on chikungunya virus (CHIKV) infection in vitro and cell viability. [Co(atc-Ph)2]Cl revealed promising MIC and MBC values which ranged from 0.39 to 0.78 µg/mL in two strains tested and presented high potential against CHIKV by reducing viral replication by up to 80%. The results showed that the biological activity is strongly influenced by the peripheral substituent groups at the N(4) position of the atc-R1- ligands. In addition, molecular docking analysis was performed. The relative binding energy of the docked compound with five bacteria strains was found in the range of -3.45 and -9.55 kcal/mol. Thus, this work highlights the good potential of cobalt(III) complexes and provide support for future studies on this molecule aiming at its antibacterial and antiviral therapeutic application.
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Affiliation(s)
- Laísa de P. Fernandes
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil; (L.d.P.F.); (G.S.O.); (M.P.); (R.A.C.S.)
| | - Júlia M. B. Silva
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38408-100, MG, Brazil; (J.M.B.S.); (D.O.S.M.); (M.B.S.); (C.H.G.M.); (A.C.G.J.)
| | - Daniel O. S. Martins
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38408-100, MG, Brazil; (J.M.B.S.); (D.O.S.M.); (M.B.S.); (C.H.G.M.); (A.C.G.J.)
| | - Mariana B. Santiago
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38408-100, MG, Brazil; (J.M.B.S.); (D.O.S.M.); (M.B.S.); (C.H.G.M.); (A.C.G.J.)
| | - Carlos H. G. Martins
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38408-100, MG, Brazil; (J.M.B.S.); (D.O.S.M.); (M.B.S.); (C.H.G.M.); (A.C.G.J.)
| | - Ana C. G. Jardim
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38408-100, MG, Brazil; (J.M.B.S.); (D.O.S.M.); (M.B.S.); (C.H.G.M.); (A.C.G.J.)
| | - Guedmiller S. Oliveira
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil; (L.d.P.F.); (G.S.O.); (M.P.); (R.A.C.S.)
| | - Marcos Pivatto
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil; (L.d.P.F.); (G.S.O.); (M.P.); (R.A.C.S.)
| | - Rafael A. C. Souza
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil; (L.d.P.F.); (G.S.O.); (M.P.); (R.A.C.S.)
| | - Eduardo de F. Franca
- Laboratório de Cristalografia e Química Computacional, Instituto de Química, Universidade Federal de Uberlândia, UFU, Uberlândia 38408-100, MG, Brazil;
| | - Victor M. Deflon
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos 13566-590, SP, Brazil;
| | - Antonio E. H. Machado
- Laboratório de Fotoquímica e Ciências dos Materiais, Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil;
- Unidade Acadêmica Especial de Física, Programa de Pós-Graduação em Ciências Exatas e Tecnol., Universidade Federal de Catalão, Catalão 75705-220, GO, Brasil
| | - Carolina G. Oliveira
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil; (L.d.P.F.); (G.S.O.); (M.P.); (R.A.C.S.)
- Correspondence: ; Tel.: +55-34-9997-9271
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28
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Abstract
Traditional organic antimicrobials mainly act on specific biochemical processes such as replication, transcription and translation. However, the emergence and wide spread of microbial resistance is a growing threat for human beings. Therefore, it is highly necessary to design strategies for the development of new drugs in order to target multiple cellular processes that should improve their efficiency against several microorganisms, including bacteria, viruses or fungi. The present review is focused on recent advances and findings of new antimicrobial strategies based on metal complexes. Recent studies indicate that some metal ions cause different types of damages to microbial cells as a result of membrane degradation, protein dysfunction and oxidative stress. These unique modes of action, combined with the wide range of three-dimensional geometries that metal complexes can adopt, make them suitable for the development of new antimicrobial drugs.
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Beebe SJ, Celestine MJ, Bullock JL, Sandhaus S, Arca JF, Cropek DM, Ludvig TA, Foster SR, Clark JS, Beckford FA, Tano CM, Tonsel-White EA, Gurung RK, Stankavich CE, Tse-Dinh YC, Jarrett WL, Holder AA. Synthesis, characterization, DNA binding, topoisomerase inhibition, and apoptosis induction studies of a novel cobalt(III) complex with a thiosemicarbazone ligand. J Inorg Biochem 2020; 203:110907. [PMID: 31715377 PMCID: PMC7053658 DOI: 10.1016/j.jinorgbio.2019.110907] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 10/24/2019] [Accepted: 10/27/2019] [Indexed: 01/09/2023]
Abstract
In this study, 9-anthraldehyde-N(4)-methylthiosemicarbazone (MeATSC) 1 and [Co(phen)2(O2CO)]Cl·6H2O 2 (where phen = 1,10-phenanthroline) were synthesized. [Co(phen)2(O2CO)]Cl·6H2O 2 was used to produce anhydrous [Co(phen)2(H2O)2](NO3)33. Subsequently, anhydrous [Co(phen)2(H2O)2](NO3)33 was reacted with MeATSC 1 to produce [Co(phen)2(MeATSC)](NO3)3·1.5H2O·C2H5OH 4. The ligand, MeATSC 1 and all complexes were characterized by elemental analysis, FT IR, UV-visible, and multinuclear NMR (1H, 13C, and 59Co) spectroscopy, along with HRMS, and conductivity measurements, where appropriate. Interactions of MeATSC 1 and complex 4 with calf thymus DNA (ctDNA) were investigated by carrying out UV-visible spectrophotometric studies. UV-visible spectrophotometric studies revealed weak interactions between ctDNA and the analytes, MeATSC 1 and complex 4 (Kb = 8.1 × 105 and 1.6 × 104 M-1, respectively). Topoisomerase inhibition assays and cleavage studies proved that complex 4 was an efficient catalytic inhibitor of human topoisomerases I and IIα. Based upon the results obtained from the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay on 4T1-luc metastatic mammary breast cancer cells (IC50 = 34.4 ± 5.2 μM when compared to IC50 = 13.75 ± 1.08 μM for the control, cisplatin), further investigations into the molecular events initiated by exposure to complex 4 were investigated. Studies have shown that complex 4 activated both the apoptotic and autophagic signaling pathways in addition to causing dissipation of the mitochondrial membrane potential (ΔΨm). Furthermore, activation of cysteine-aspartic proteases3 (caspase 3) in a time- and concentration-dependent manner coupled with the ΔΨm, studies implicated the intrinsic apoptotic pathway as the major regulator of cell death mechanism.
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Affiliation(s)
- Stephen J Beebe
- The Frank Reidy Center for Bioelectrics, 4211 Monarch Way, Suite 300, Norfolk, VA 23529, USA
| | - Michael J Celestine
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jimmie L Bullock
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Shayna Sandhaus
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - Jessa Faye Arca
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, MS 39406, USA
| | - Donald M Cropek
- U.S. Army Corps of Engineers, Construction Engineering Research Laboratory, Champaign, IL 61822, USA
| | - Tekettay A Ludvig
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Sydney R Foster
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jasmine S Clark
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Floyd A Beckford
- The University of Virginia's College at Wise, 1 College Avenue, Wise, VA 24293, USA
| | - Criszcele M Tano
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Elizabeth A Tonsel-White
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Raj K Gurung
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Courtney E Stankavich
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Yuk-Ching Tse-Dinh
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - William L Jarrett
- School of Polymers and High-Performance Materials, The University of Southern Mississippi, 118 College Drive, #5050, Hattiesburg, MS 39406, USA
| | - Alvin A Holder
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA.
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30
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Felder PS, Keller S, Gasser G. Polymetallic Complexes for Applications as Photosensitisers in Anticancer Photodynamic Therapy. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900139] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Patrick S. Felder
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical BiologyF‐75005 Paris France
| | - Sarah Keller
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical BiologyF‐75005 Paris France
| | - Gilles Gasser
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical BiologyF‐75005 Paris France
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31
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Areas ES, de Assunção Paiva JL, Ribeiro FV, Pereira TM, Kummerle AE, Silva H, Guedes GP, Cellis do Nascimento AC, da Silva Miranda F, Neves AP. Redox-Activated Drug Delivery Properties and Cytotoxicity of Cobalt Complexes Based on a Fluorescent Coumarin-β-Keto Ester Hybrid. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Esther Saraiva Areas
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | | | - Felipe Vitório Ribeiro
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | - Thiago Moreira Pereira
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | - Arthur Eugen Kummerle
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | - Heveline Silva
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos, 6627 - Pampulha Belo Horizonte Minas Gerais CEP 31270-901 Brasil
| | - Guilherme Pereira Guedes
- Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho, Centro, Niterói Rio de Janeiro CEP 24020-150 Brasil
| | | | - Fabio da Silva Miranda
- Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho, Centro, Niterói Rio de Janeiro CEP 24020-150 Brasil
| | - Amanda Porto Neves
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
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32
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Alghamdi N, Balaraman L, Emhoff KA, Salem AMH, Wei R, Zhou A, Boyd WC. Cobalt(II) Diphenylazodioxide Complexes Induce Apoptosis in SK-HEP-1 Cells. ACS OMEGA 2019; 4:14503-14510. [PMID: 31528804 PMCID: PMC6740190 DOI: 10.1021/acsomega.9b01684] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
The cobalt(II) complex salts [Co(bpy)(az)2](PF6)2 and [Co(az)4](PF6), each bearing the unusual cis-N,N'-diphenylazodioxide ligand, were both screened as possible anticancer agents against SK-HEP-1 liver cancer cells. Both compounds were found to induce substantial apoptosis as an increasing function of concentration and time. Measurement of apoptosis-related proteins indicated that both the extrinsic and intrinsic pathways of apoptosis were activated. The apoptotic activity induced by these salts is not displayed either by simple cobalt(II) salts or complexes or by the free nitrosobenzene ligand. Additionally, these compounds did not induce apoptosis, as assessed by poly(adenosine diphosphate-ribose) polymerase cleavage, in several other cell lines.
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Affiliation(s)
- Norah
J. Alghamdi
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
| | - Lakshmi Balaraman
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
| | - Kylin A. Emhoff
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
| | - Ahmed M. H. Salem
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
| | - Ruhan Wei
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
| | - Aimin Zhou
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
| | - W. Christopher Boyd
- Department
of Chemistry and Center for Gene Regulation in Health and Disease
(GRHD), Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44114, United States
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33
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King AP, Gellineau HA, MacMillan SN, Wilson JJ. Physical properties, ligand substitution reactions, and biological activity of Co(iii)-Schiff base complexes. Dalton Trans 2019; 48:5987-6002. [PMID: 30672949 PMCID: PMC6504617 DOI: 10.1039/c8dt04606a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four cobalt(iii) complexes of the general formula [Co(Schiff base)(L)2]+, where L is ammonia (NH3) or 3-fluorobenzylamine (3F-BnNH2), were synthesized. The complexes were characterized by NMR spectroscopy, mass spectrometry, and X-ray crystallography. Their electrochemical properties, ligand substitution mechanisms, and ligand exchange rates in aqueous buffer were investigated. These physical properties were correlated to the cellular uptake and anticancer activities of the complexes. The complexes undergo sequential, dissociative ligand substitution, with the exchange rates depending heavily on the axial ligands. Eyring analyses revealed that the relative ligand exchange rates were largely impacted by differences in the entropy, rather than enthalpy, of activation for the complexes. Performing the substitution reactions in the presence of ascorbate led to a change in the reaction profile and kinetics, but no change in the final product. The cytotoxic activity of the complexes correlates with both the ligand exchange rate and reduction potential, with the more easily reduced and rapidly substituted complexes showing higher toxicity. These relationships may be valuable for the rational design of Co(iii) complexes as anticancer or antiviral prodrugs.
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Affiliation(s)
- A Paden King
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA.
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34
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Ambika S, Manojkumar Y, Arunachalam S, Gowdhami B, Meenakshi Sundaram KK, Solomon RV, Venuvanalingam P, Akbarsha MA, Sundararaman M. Biomolecular Interaction, Anti-Cancer and Anti-Angiogenic Properties of Cobalt(III) Schiff Base Complexes. Sci Rep 2019; 9:2721. [PMID: 30804454 PMCID: PMC6389928 DOI: 10.1038/s41598-019-39179-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/18/2019] [Indexed: 12/17/2022] Open
Abstract
Two cobalt(III) Schiff base complexes, trans-[Co(salen)(DA)2](ClO4) (1) and trans-[Co(salophen)(DA)2](ClO4) (2) (where salen: N,N'-bis(salicylidene)ethylenediamine, salopen: N,N'-bis(salicylidene)-1,2-phenylenediamine, DA: dodecylamine) were synthesised and characterised using various spectroscopic and analytical techniques. The binding affinity of both the complexes with CT-DNA was explored adopting UV-visible, fluorescence, circular dichroism spectroscopy and cyclic voltammetry techniques. The results revealed that both the complexes interacted with DNA via intercalation as well as notable groove binding. Protein (BSA) binding ability of these complexes was investigated by absorption and emission spectroscopy which indicate that these complexes engage in strong hydrophobic interaction with BSA. The mode of interaction between these complexes and CT-DNA/BSA was studied by molecular docking analysis. The in vitro cytotoxic property of the complexes was evaluated in A549 (human small cell lung carcinoma) and VERO (African green monkey kidney cells). The results revealed that the complexes affect viability of the cells. AO and EB staining and cell cycle analysis revealed that the mode of cell death is apoptosis. Both the complexes showed profound inhibition of angiogenesis as revealed in in-vivo chicken chorioallantoic membrane (CAM) assay. Of the two complexes, the complex 2 proved to be much more efficient in affecting the viability of lung cancer cells than complex 1. These results indicate that the cobalt(III) Schiff base complexes in this study can be potentially used for cancer chemotherapy and as inhibitor of angiogenesis, in general, and lung cancer in particular, for which there is need for substantiation at the level of signalling mechanisms and gene expressions.
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Affiliation(s)
- Subramanian Ambika
- Department of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India.,Department of Chemistry, Gebze Technical University, Gebze, 41400, Kocaeli, Turkey
| | - Yesaiyan Manojkumar
- Department of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India.,Department of Chemistry, Gebze Technical University, Gebze, 41400, Kocaeli, Turkey
| | - Sankaralingam Arunachalam
- Department of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India. .,Plot-46, Nagappa Nagar, Airport (Post), Tiruchirappalli, 620007, India.
| | - Balakrishnan Gowdhami
- Mahatma Gandhi-Doerenkamp Centre, Bharathidasan University, Tiruchirappalli, 620 024, India.,National Center for Alternatives to Animal Experiments, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - Kishore Kumar Meenakshi Sundaram
- Centre for Environmental Research and Development (CERD), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Rajadurai Vijay Solomon
- Department of Chemistry, Madras Christian College (Autonomous), East Tambaram, Chennai, 600 059, India
| | | | - Mohammad Abdulkader Akbarsha
- Mahatma Gandhi-Doerenkamp Centre, Bharathidasan University, Tiruchirappalli, 620 024, India.,Research Coordinator, National College (Autonomous), Tiruchirappalli, 620001, India
| | - Muthuraman Sundararaman
- Department of Marine Biotechnology, Bharathidasan University, Tiruchirappalli, 620 024, India
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35
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Renfrew AK, O'Neill ES, Hambley TW, New EJ. Harnessing the properties of cobalt coordination complexes for biological application. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.027] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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36
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Areas ES, Bronsato BJDS, Pereira TM, Guedes GP, Miranda FDS, Kümmerle AE, da Cruz AGB, Neves AP. Novel Co III complexes containing fluorescent coumarin-N-acylhydrazone hybrid ligands: Synthesis, crystal structures, solution studies and DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 187:130-142. [PMID: 28683368 DOI: 10.1016/j.saa.2017.06.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/05/2017] [Accepted: 06/24/2017] [Indexed: 06/07/2023]
Abstract
A series of new CoIII complexes of the type [Co(dien)(L1-L3)]ClO4 (1-3), containing fluorescent coumarin-N-acylhydrazonate hybrid ligands, (E)-N'-(1-(7-oxido-2-oxo-2H-chromen-3-yl)ethylidene)-4-R-benzohydrazonate [where R=H (L12-), OCH3 (L22-) or Cl (L32-)], were obtained and isolated in the low spin CoIII configuration. Single-crystal X-ray diffraction showed that the coumarin-N-acylhydrazones act as tridentate ligands in their deprotonated form (L2-). The cation (+1) complexes contain a diethylenetriamine (dien) as auxiliary ligand and their structures were calculated by DFT studies which were also performed for the CoII (S=1/2 and S=3/2) configurations. The LS CoII (S=1/2) concentrated the spin density on the O-Co-O axis while the HS CoII (S=3/2) exhibited a broad spin density distribution around the metallic center. Cyclic voltammetry studies showed that structural modifications made in the L2- ligands caused a slight influence on the electronic density of the metal center, and the E1/2 values for the CoIII/CoII redox couple increased following the electronic effect of the R-substituent, in the order: 2 (R=OCH3)<1 (R=H)<3 (R=Cl). The theoretical redox potentials (E°) of the process CoIII→CoII were calculated for both CoII spin states (S=1/2 and S=3/2) and a better correlation was found for CoIII→CoII (S=1/2), compared with experimental values vs SHE (E°calc=-0.37, -0.36 and -0.32V vs E°exp.=-0.371, -0.406 and -0.358V, for 1-3 respectively). Complexes 1-3 exhibited a very intense absorption band around 470nm, assigned by DFT calculations as π-π* transitions from the delocalized coumarin-N-acylhydrazone system. 1-3 were very stable in MeOH for several days. Likewise, 1-3 were stable in phosphate buffer containing sodium ascorbate after 15h, which was attributed to the high chelate effect and σ-donor ability of the L2- and dien ligands.
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Affiliation(s)
- Esther S Areas
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Bruna Juliana da S Bronsato
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Thiago M Pereira
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Guilherme P Guedes
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Fábio da S Miranda
- Instituto de Química, Universidade Federal Fluminense, 24020-150 Niterói, RJ, Brazil
| | - Arthur E Kümmerle
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Antônio G B da Cruz
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Amanda P Neves
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil.
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Synthesis, structural and biological studies of two new Co(III) complexes with tridentate hydrazone ligand derived from the antihypertensive drug hydralazine. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fan Q, Kopp SJ, Connolly SA, Longnecker R. Structure-Based Mutations in the Herpes Simplex Virus 1 Glycoprotein B Ectodomain Arm Impart a Slow-Entry Phenotype. mBio 2017; 8:e00614-17. [PMID: 28512095 PMCID: PMC5433099 DOI: 10.1128/mbio.00614-17] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 04/24/2017] [Indexed: 01/15/2023] Open
Abstract
Glycoprotein B (gB) is the conserved herpesvirus fusion protein, and it is required for the entry of herpesviruses. The structure of the postfusion conformation of gB has been solved for several herpesviruses; however, the gB prefusion crystal structure and the details of how the protein refolds from a prefusion to a postfusion form to mediate fusion have not been determined. Using structure-based mutagenesis, we previously reported that three mutations (I671A, H681A, and F683A) in the C-terminal arm of the gB ectodomain greatly reduced cell-cell fusion. This fusion deficit could be rescued by the addition of a hyperfusogenic mutation, suggesting that the gB triple mutant was not misfolded. Using a bacterial artificial chromosome (BAC), we constructed two independent herpes simplex virus 1 mutant strains (gB 3A) carrying the three arm mutations. The gB 3A viruses have 200-fold smaller plaques than the wild-type virus and demonstrate remarkably delayed entry into cells. Single-step and multistep growth curves show that gB 3A viruses have delayed replication kinetics. Interestingly, incubation at 40°C promoted the entry of the gB 3A viruses. We propose that the gB 3A viruses' entry deficit is due to a loss of interactions between residues in the gB C-terminal arm and the coiled-coil core of gB. The results suggest that the triple alanine mutation may destabilize the postfusion gB conformation and/or stabilize the prefusion gB conformation and that exposure to elevated temperatures can overcome the defect in gB 3A viruses.IMPORTANCE Because of its complexity, the mechanism of herpesvirus entry into cells is not well understood. Our study investigated one of the most important unanswered questions about herpesvirus entry; i.e., how does the herpesvirus fusion protein gB mediate membrane fusion? gB is an essential protein that is conserved in all herpesviruses and is thought to undergo a conformational change to provide the energy to fuse the viral and cellular membranes. Using our understanding of the structure of gB, we designed mutations in the gB "arm" region that we predicted would impede gB function. We introduced these mutations into herpes simplex virus 1 by using a bacterial artificial chromosome, and the mutant virus exhibited a drastically delayed rate of entry. This entry defect was rescued by incubation at elevated temperatures, supporting a hypothesis that the engineered mutations altered the energetics of gB refolding. This study supports our hypothesis that an interaction between the gB arm and the core of gB is critical for gB refolding and the execution of membrane fusion, thus providing key details about the function of gB in herpesvirus-mediated fusion and subsequent virus entry.
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Affiliation(s)
- Qing Fan
- Department of Microbiology-Immunology, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Sarah J Kopp
- Department of Microbiology-Immunology, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Sarah A Connolly
- Department of Health Sciences, Department of Biological Sciences, DePaul University, Chicago, Illinois, USA
| | - Richard Longnecker
- Department of Microbiology-Immunology, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
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Munteanu CR, Suntharalingam K. Advances in cobalt complexes as anticancer agents. Dalton Trans 2016; 44:13796-808. [PMID: 26148776 DOI: 10.1039/c5dt02101d] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The evolution of resistance to traditional platinum-based anticancer drugs has compelled researchers to investigate the cytostatic properties of alternative transition metal-based compounds. The anticancer potential of cobalt complexes has been extensively studied over the last three decades, and much time has been devoted to understanding their mechanisms of action. This perspective catalogues the development of antiproliferative cobalt complexes, and provides an in depth analysis of their mode of action. Early studies on simple cobalt coordination complexes, Schiff base complexes, and cobalt-carbonyl clusters will be documented. The physiologically relevant redox properties of cobalt will be highlighted and the role this plays in the preparation of hypoxia selective prodrugs and imaging agents will be discussed. The use of cobalt-containing cobalamin as a cancer specific delivery agent for cytotoxins will also be described. The work summarised in this perspective shows that the biochemical and biophysical properties of cobalt-containing compounds can be fine-tuned to produce new generations of anticancer agents with clinically relevant efficacies.
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Morcelli SR, Bull ÉS, Terra WS, Moreira RO, Borges FV, Kanashiro MM, Bortoluzzi AJ, Maciel LLF, de A Almeida JC, Júnior AH, Fernandes C. Synthesis, characterization and antitumoral activity of new cobalt(II)complexes: Effect of the ligand isomerism on the biological activity of the complexes. J Inorg Biochem 2016; 161:73-82. [PMID: 27221950 DOI: 10.1016/j.jinorgbio.2016.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 04/13/2016] [Accepted: 05/04/2016] [Indexed: 11/20/2022]
Abstract
The synthesis, physico-chemical characterization and cytotoxicity against five human tumoral cell lines (THP-1, U937, Molt-4, Colo205 and H460) of three new cobalt(II) coordination compounds are reported (i.e. Co(HL1)Cl (1), Co(HL2)Cl (2) and [Co(HL3)Cl]0.0.5 (CH3)2CHOH (3)). H2L2 (2-{[[2-hydroxy-3-(1-naphthyloxy)propyl](pyridin-2-ylmethyl)amino]methyl}phenol) and H2L3 (2-{[[2-hydroxy-3-(2-naphthyloxy)propyl](pyridin-2-ylmethyl)amino]methyl}phenol) present α and β-naphthyl groups respectively, which is absent in H2L1 (N-(2-hydroxybenzyl)-N-(2-pyridylmethyl)[(3-chloro)(2-hydroxy)]propylamine. These compounds were characterized by a range of physico-chemical methods. X-ray diffraction studies were performed for complex (3), indicating the formation of a mononuclear complex. Complexes (2) and (3), which contain α and β-naphthyl groups respectively, have presented lower IC50 values than those exhibited by complex (1). Complex (3) presents IC50 values lower than cisplatin against Colo205 (90 and 196μmolL(-1), respectively) and H460 (147 and 197μmolL(-1), respectively). These human neoplastic cells under investigation were also more susceptible toward complex (3) than peripheral blood mononuclear cells. Transmission electron microscopy investigations are in agreement with the loss of mitochondrial membrane potential (ΔΨm) observed by JC-1 mitochondrial potential sensor and indicate that the activity of complex (3) against leukemic cell line (U937) is mediated by an apoptotic mechanism associated with mitochondrial dysfunction (intrinsic pathway).
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Affiliation(s)
- Samila R Morcelli
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Érika S Bull
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Wagner S Terra
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Rafaela O Moreira
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil.
| | - Franz V Borges
- Instituto Federal Fluminense, 28030-130 Campos dos Goytacazes, RJ, Brazil
| | - Milton M Kanashiro
- Laboratório de Biologia do Reconhecer, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Adailton J Bortoluzzi
- Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Leide L F Maciel
- Laboratório de Fisiologia e Bioquímica de Microorganismos, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - João Carlos de A Almeida
- Laboratório de Fisiologia e Bioquímica de Microorganismos, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Adolfo Horn Júnior
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
| | - Christiane Fernandes
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602 Campos dos Goytacazes, RJ, Brazil
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Pires de Mello CP, Bloom DC, Paixão IC. Herpes simplex virus type-1: replication, latency, reactivation and its antiviral targets. Antivir Ther 2016; 21:277-86. [PMID: 26726828 DOI: 10.3851/imp3018] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2015] [Indexed: 10/22/2022]
Abstract
Infection by herpes simplex virus type-1 (HSV-1) causes several diseases, ranging from cutaneous, oral and genital infections to fatal encephalitis. Despite the availability of antiviral therapies on the market, their efficacies are incomplete, and new cases of resistant strains arise, mainly in the immunocompromised, but also recently documented in immunocompetent patients. Over the last decades a lot has been discovered about the molecular basis of infection which has been of great benefit to the investigation of new anti-HSV-1 molecules. In this review we summarize replication, latency and reactivation highlighting potential antiviral targets and new molecules described in the past several years in the literature.
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Affiliation(s)
- Camilly P Pires de Mello
- Department of Cellular and Molecular Biology, Universidade Federal Fluminense, Biology Institute, Niterói, Brazil
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Nickel(II) and cobalt(II) complexes of lidocaine: Synthesis, structure and comparative in vitro evaluations of biological perspectives. Eur J Med Chem 2015; 103:516-29. [DOI: 10.1016/j.ejmech.2015.09.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 08/14/2015] [Accepted: 09/12/2015] [Indexed: 11/23/2022]
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Zheng K, Chen M, Xiang Y, Ma K, Jin F, Wang X, Wang X, Wang S, Wang Y. Inhibition of herpes simplex virus type 1 entry by chloride channel inhibitors tamoxifen and NPPB. Biochem Biophys Res Commun 2014; 446:990-6. [PMID: 24657267 DOI: 10.1016/j.bbrc.2014.03.050] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 03/12/2014] [Indexed: 11/26/2022]
Abstract
Herpes simplex virus type 1 (HSV-1) infection is very common worldwide and can cause significant health problems from periodic skin and corneal lesions to encephalitis. Appearance of drug-resistant viruses in clinical therapy has made exploring novel antiviral agents emergent. Here we show that chloride channel inhibitors, including tamoxifen and 5-nitro-2-(3-phenyl-propylamino) benzoic acid (NPPB), exhibited extensive antiviral activities toward HSV-1 and ACV-resistant HSV viruses. HSV-1 infection induced chloride ion influx while treatment with inhibitors reduced the increase of intracellular chloride ion concentration. Pretreatment or treatment of inhibitors at different time points during HSV-1 infection all suppressed viral RNA synthesis, protein expression and virus production. More detailed studies demonstrated that tamoxifen and NPPB acted as potent inhibitors of HSV-1 early entry step by preventing viral binding, penetration and nuclear translocation. Specifically the compounds appeared to affect viral fusion process by inhibiting virus binding to lipid rafts and interrupting calcium homeostasis. Taken together, the observation that tamoxifen and NPPB can block viral entry suggests a stronger potential for these compounds as well as other ion channel inhibitors in antiviral therapy against HSV-1, especially the compound tamoxifen is an immediately actionable drug that can be reused for treatment of HSV-1 infections.
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Affiliation(s)
- Kai Zheng
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China; College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Maoyun Chen
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China; College of pharmacy, Jinan University, Guangzhou, China
| | - Yangfei Xiang
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Kaiqi Ma
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Fujun Jin
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China; College of pharmacy, Jinan University, Guangzhou, China
| | - Xiao Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiaoyan Wang
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Shaoxiang Wang
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Yifei Wang
- Guangzhou Jinan Biomedicine Research and Development Center, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China.
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Affiliation(s)
- Katja Dralle Mjos
- Medicinal Inorganic Chemistry Group, Department of Chemistry, The University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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45
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Potassium trans-[bis(oxalato)diaquacobaltate(II)] tetrahydrate: synthesis, structure, potentiometric and thermal studies. OPEN CHEM 2013. [DOI: 10.2478/s11532-012-0129-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe title compound, trans-K2[Co(C2O4)2(H2O)2]·4H2O, was synthesised, and characterised by elemental analysis. Acid dissociation constants for the complex were determined by potentiometric titration and calculated by STOICHIO program. The crystal structure of trans-K2[Co(C2O4)2(H2O)2]·4H2O was determined by X-ray diffraction studies. The asymmetric part of the unit cell contains one symmetric anion of oxalate and water molecule bound with Co(II) ion in crystallographic special position, one potassium cation and two molecules of water. Thermal properties of the complex were examined by thermogravimetric analysis (TGA). A decomposition mechanism is proposed on the basis of the results.
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Heffern MC, Yamamoto N, Holbrook RJ, Eckermann AL, Meade TJ. Cobalt derivatives as promising therapeutic agents. Curr Opin Chem Biol 2012; 17:189-96. [PMID: 23270779 DOI: 10.1016/j.cbpa.2012.11.019] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 11/20/2012] [Accepted: 11/21/2012] [Indexed: 01/08/2023]
Abstract
Inorganic complexes are versatile platforms for the development of potent and selective pharmaceutical agents. Cobalt possesses a diverse array of properties that can be manipulated to yield promising drug candidates. Investigations into the mechanism of cobalt therapeutic agents can provide valuable insight into the physicochemical properties that can be harnessed for drug development. This review presents examples of bioactive cobalt complexes with special attention to their mechanisms of action. Specifically, cobalt complexes that elicit biological effects through protein inhibition, modification of drug activity, and bioreductive activation are discussed. Insights gained from these examples reveal features of cobalt that can be rationally tuned to produce therapeutics with high specificity and improved efficacy for the biomolecule or pathway of interest.
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Affiliation(s)
- Marie C Heffern
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, IL 60208-3113, United States
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Wojciechowska A, Dobrzyńska D, Janczak J. Structural and spectroscopic study of cobalt(III) ternary complexes. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.07.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Harney AS, Meade TJ, LaBonne C. Targeted inactivation of Snail family EMT regulatory factors by a Co(III)-Ebox conjugate. PLoS One 2012; 7:e32318. [PMID: 22393397 PMCID: PMC3290632 DOI: 10.1371/journal.pone.0032318] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 01/26/2012] [Indexed: 01/08/2023] Open
Abstract
Snail family proteins are core EMT (epithelial-mesenchymal transition) regulatory factors that play essential roles in both development and disease processes and have been associated with metastasis in carcinomas. Snail factors are required for the formation of neural crest stem cells in most vertebrate embryos, as well as for the migratory invasive behavior of these cells. Snail factors have recently been linked to the formation of cancer stem cells, and expression of Snail proteins may be associated with tumor recurrence and resistance to chemotherapy and radiotherapy. We report that Co(III)-Ebox is a potent inhibitor of Snail- mediated transcriptional repression in breast cancer cells and in the neural crest of Xenopus. We further show that the activity of Co(III)-Ebox can be modulated by temperature, increasing the utility of this conjugate as a Snail inhibitor in model organisms. We exploit this feature to further delineate the requirements for Snail function during neural crest development, showing that in addition to the roles that Snail factors play in neural crest precursor formation and neural crest EMT/migration, inhibition of Snail function after the onset of neural crest migration leads to a loss of neural crest derived melanocytes. Co(III)-Ebox-mediated inhibition therefore provides a powerful tool for analysing the function of these core EMT factors with unparalleled temporal resolution. Moreover, the potency of Co(III)-Ebox as a Snail inhibitor in breast cancer cells suggests its potential as a therapeutic inhibitor of tumor progression and metastasis.
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Affiliation(s)
- Allison S. Harney
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, United States of America
- Departments of Chemistry, Neurobiology, and Radiology, Northwestern University, Evanston, Illinois, United States of America
| | - Thomas J. Meade
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, United States of America
- Departments of Chemistry, Neurobiology, and Radiology, Northwestern University, Evanston, Illinois, United States of America
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Evanston, Illinois, United States of America
| | - Carole LaBonne
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, United States of America
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Evanston, Illinois, United States of America
- * E-mail:
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Madeira JM, Beloukhina N, Boudreau K, Boettcher TA, Gurley L, Walker DG, McNeil WS, Klegeris A. Cobalt(II) β-ketoaminato complexes as novel inhibitors of neuroinflammation. Eur J Pharmacol 2011; 676:81-8. [PMID: 22173130 DOI: 10.1016/j.ejphar.2011.11.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 11/22/2011] [Accepted: 11/27/2011] [Indexed: 01/27/2023]
Abstract
Neuroinflammation contributes to the pathogenesis of neurological disorders including stroke, head trauma, multiple sclerosis, amyotrophic lateral sclerosis as well as age-associated neurodegenerative disorders including Alzheimer's and Parkinson's diseases. Therefore, anti-inflammatory drugs could be used to slow the progression of these diseases. We studied the anti-neuroinflammatory activity of four novel square planar cobalt(II) compounds bearing tetradentate β-ketoaminato ligands with variation in the number of CF(3) ligand substituents, as well as their corresponding unmetallated organic ligands. Cobalt (Co) complexes were consistently more active than their corresponding ligands. One of the complexes, L(3)Co at concentrations (1-10 μM) that were not toxic to cells, significantly reduced cytotoxic secretions by human monocytic THP-1 cells, astrocytoma U-373 MG cells, and primary human microglia. This anti-neurotoxic action of L(3)Co was reduced by SP600125 and PD98059, selective inhibitors of c-Jun NH2-terminal kinase (JNK) and extracellular signal regulated kinase (ERK) kinase (MEK)1/2 respectively. L(3)Co had no effect on secretion of monocyte chemotactic protein-1 (MCP-1) by THP-1 cells, but it inhibited the NADPH oxidase-dependent respiratory burst activity of differentiated human HL-60 cells. L(3)Co upregulated heme oxygenase-1 (HOX-1) expression by THP-1 cells, which may be one of the molecular mechanisms responsible for its anti-inflammatory properties. Two of the Co compounds tested showed activity only at high concentrations (50 μM), but L(2)Co was highly toxic to all cell types used. Select Co complexes, such as L(3)Co, may exhibit pharmacological properties beneficial in human diseases involving neuroinflammatory processes. Further studies of the in vivo efficacy, safety and pharmacokinetics of L(3)Co are warranted.
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Affiliation(s)
- Jocelyn M Madeira
- Department of Biology, University of British Columbia Okanagan, Kelowna, BC, Canada
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Gurley L, Beloukhina N, Boudreau K, Klegeris A, McNeil WS. The synthesis and characterization of a series of cobalt(II) β-ketoaminato complexes and their cytotoxic activity towards human tumor cell lines. J Inorg Biochem 2011; 105:858-66. [DOI: 10.1016/j.jinorgbio.2011.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 02/16/2011] [Accepted: 03/14/2011] [Indexed: 12/31/2022]
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