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Bernkop-Schnürch AD, Huber K, Clauser A, Cziferszky M, Leitner D, Talasz H, Hermann M, Hohloch S, Gust R, Kircher B. Design, synthesis, and biological evaluation of novel halogenated chlorido[N,N'-bis(salicylidene)-1,2-bis(3-methoxyphenyl)ethylenediamine]iron(III) complexes as anticancer agents. J Biol Inorg Chem 2024:10.1007/s00775-024-02067-9. [PMID: 39133326 DOI: 10.1007/s00775-024-02067-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 07/17/2024] [Indexed: 08/13/2024]
Abstract
Iron(III) complexes based on N,N´-bis(salicylidene)ethylenediamine (salene) scaffolds have demonstrated promising anticancer features like induction of ferroptosis, an iron dependent cell death. Since poor cellular uptake limits their therapeutical potential, this study aimed to enhance the lipophilic character of chlorido[N,N'-bis(salicylidene)-1,2-bis(3-methoxyphenyl)ethylenediamine]iron(III) complexes by introducing lipophilicity improving ligands such as fluorine (X1), chlorine (X2) and bromine (X3) in 5-position in the salicylidene moieties. After detailed characterization the binding to nucleophiles, logP values and cellular uptake were determined. The complexes were further evaluated regarding their biological activity on MDA-MB 231 mammary carcinoma, the non-tumorous SV-80 fibroblast, HS-5 stroma and MCF-10A mammary gland cell lines. Stability of the complexes in aqueous and biological environments was proven by the lack of interactions with amino acids and glutathione. Cellular uptake was positively correlated with the logP values, indicating that higher lipophilicity enhanced cellular uptake. The complexes induced strong antiproliferative and antimetabolic effects on MDA-MB 231 cells, but were inactive on all non-malignant cells tested. Generation of mitochondrial reactive oxygen species, increase of lipid peroxidation and induction of both ferroptosis and necroptosis were identified as mechanisms of action. In conclusion, halogenation of chlorido[N,N'-bis(salicylidene)-1,2-bis(3-methoxyphenyl)ethylenediamine]iron(III) complexes raises their lipophilic character resulting in improved cellular uptake.
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Affiliation(s)
- Astrid Dagmar Bernkop-Schnürch
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Klaus Huber
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Armida Clauser
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
- Immunobiology and Stem Cell Laboratory, Department of Internal Medicine V (Hematology and Oncology), Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - Monika Cziferszky
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Daniel Leitner
- Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Heribert Talasz
- Biocenter, Institute of Medical Biochemistry, Protein Core Facility, Medical University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Martin Hermann
- Department of Anesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - Stephan Hohloch
- Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck, CCB-Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Brigitte Kircher
- Immunobiology and Stem Cell Laboratory, Department of Internal Medicine V (Hematology and Oncology), Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria.
- Tyrolean Cancer Research Institute, Innrain 66, 6020, Innsbruck, Austria.
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2
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Joksimović N, Petronijević J, Ćoćić D, Ristić M, Mihajlović K, Janković N, Milović E, Klisurić O, Petrović N, Kosanić M. Synthesis, characterization, and biological evaluation of novel cobalt(II) complexes with β-diketonates: crystal structure determination, BSA binding properties and molecular docking study. J Biol Inorg Chem 2024; 29:541-553. [PMID: 39120695 DOI: 10.1007/s00775-024-02069-7] [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: 02/21/2023] [Accepted: 07/28/2024] [Indexed: 08/10/2024]
Abstract
In order to discover a new antibiotic drug with better or similar activity of the already existing drugs, a series of novel cobalt(II) complexes with β-diketonate as ligands is synthesized and tested on four strains of bacteria and four species of fungi. All compounds showed notable antimicrobial activity against all tested strains. More importantly, some cobalt(II) complexes displayed greater activity than ketoconazole. It is important to notice that on the tested strains Mucor mucedo and Penicillium italicum complex 2B showed five times better activity compared to ketoconazole, while complex 2D had two times better activity on Penicillium italicum strain compared to ketoconazole. Moreover, investigations with bovine serum albumin were performed. Investigations showed that the tested complexes have an appropriate affinity for binding to bovine serum albumin. In addition, the molecular docking study was performed to investigate more specifically the sites and binding mode of the tested cobalt(II) complexes with β-diketonate as ligands to bovine serum albumin, tyrosyl-tRNA synthetase, topoisomerase II DNA gyrase, and cytochrome P450 14 alpha-sterol demethylase. In conclusion, all the results indicated the great prospective of the novel cobalt complexes for some potential clinical applications in the future.
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Affiliation(s)
- Nenad Joksimović
- Department of Chemistry, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia.
| | - Jelena Petronijević
- Department of Chemistry, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Dušan Ćoćić
- Department of Chemistry, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Marija Ristić
- Department of Chemistry, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Kristina Mihajlović
- Department of Chemistry, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Nenad Janković
- Department of Sciences, Institute for Information Technologies Kragujevac, University of Kragujevac, Jovana Cvijića bb, 34000, Kragujevac, Serbia
| | - Emilija Milović
- Department of Sciences, Institute for Information Technologies Kragujevac, University of Kragujevac, Jovana Cvijića bb, 34000, Kragujevac, Serbia
| | - Olivera Klisurić
- Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 4, 21000, Novi Sad, Serbia
| | - Nevena Petrović
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Marijana Kosanić
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
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3
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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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4
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Bernkop-Schnürch A, Chavooshi D, Descher HA, Leitner D, Talasz H, Hermann M, Wurst K, Hohloch S, Gust R, Kircher B. Design, Synthesis, Electrochemical, and Biological Evaluation of Fluorescent Chlorido[ N, N'-bis(methoxy/hydroxy)salicylidene-1,2-bis(4-methoxyphenyl)ethylenediamine]iron(III) Complexes as Anticancer Agents. J Med Chem 2023; 66:15916-15925. [PMID: 38013413 PMCID: PMC10726350 DOI: 10.1021/acs.jmedchem.3c01359] [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: 07/27/2023] [Revised: 11/02/2023] [Accepted: 11/15/2023] [Indexed: 11/29/2023]
Abstract
The impact of methoxy and hydroxyl groups at the salicylidene moiety of chlorido[N,N'-bis(methoxy/hydroxy)salicylidene-1,2-bis(4-methoxyphenyl)ethylenediamine]iron(III) complexes was evaluated on human MDA-MB 231 breast cancer and HL-60 leukemia cells. Methoxylated complexes (C1-C3) inhibited proliferation, migration, and metabolic activity in a concentration-dependent manner following the rank order: C2 > C3 > C1. In particular, C2 was highly cytotoxic with an IC50 of 4.2 μM which was 6.6-fold lower than that of cisplatin (IC50 of 27.9 μM). In contrast, hydroxylated complexes C4-C6 were almost inactive up to the highest concentration tested due to lack of cellular uptake. C2 caused a dual mode of cell death, ferroptosis, and necroptosis, whereby at higher concentrations, ferroptosis was the preferred form. Ferroptotic morphology and the presence of ferrous iron and lipid reactive oxygen species proved the involvement of ferroptosis. C2 was identified as a promising lead compound for the design of drug candidates inducing ferroptosis.
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Affiliation(s)
- Astrid
Dagmar Bernkop-Schnürch
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI−Center
for Molecular Biosciences Innsbruck, CCB—Center for Chemistry
and Biomedicine, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Donja Chavooshi
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI−Center
for Molecular Biosciences Innsbruck, CCB—Center for Chemistry
and Biomedicine, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
- Immunobiology
and Stem Cell Laboratory, Department of Internal Medicine V (Hematology
and Oncology), Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
| | - Hubert Aaron Descher
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI−Center
for Molecular Biosciences Innsbruck, CCB—Center for Chemistry
and Biomedicine, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniel Leitner
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Heribert Talasz
- Biocenter,
Institute of Medical Biochemistry, Protein Core Facility, Medical University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Martin Hermann
- Department
of Anesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
| | - Klaus Wurst
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Stephan Hohloch
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Ronald Gust
- Department
of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI−Center
for Molecular Biosciences Innsbruck, CCB—Center for Chemistry
and Biomedicine, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Brigitte Kircher
- Immunobiology
and Stem Cell Laboratory, Department of Internal Medicine V (Hematology
and Oncology), Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
- Tyrolean
Cancer Research Institute, Innrain 66, 6020 Innsbruck, Austria
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5
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Synthesis and Preliminary in vitro Cytotoxic Activity of Pd(II) Complexes Including Salen- or Salphen-Ligands. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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6
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Fluorescence, cyclic voltammetric, computational, and spectroscopic studies of Mn(II), Co(II), Pd(II), Zn(II) and Cd(II) complexes of salen ligand and their biological applications. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134142] [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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7
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Qu JJ, Bai P, Liu WN, Liu ZL, Gong JF, Wang JX, Zhu X, Song B, Hao XQ. New NNN pincer copper complexes as potential anti-prostate cancer agents. Eur J Med Chem 2022; 244:114859. [DOI: 10.1016/j.ejmech.2022.114859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 11/04/2022]
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8
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The Synthesis, Characterization, Molecular Docking and In Vitro Antitumor Activity of Benzothiazole Aniline (BTA) Conjugated Metal-Salen Complexes as Non-Platinum Chemotherapeutic Agents. Pharmaceuticals (Basel) 2022; 15:ph15060751. [PMID: 35745670 PMCID: PMC9228978 DOI: 10.3390/ph15060751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/23/2022] [Accepted: 06/11/2022] [Indexed: 02/04/2023] Open
Abstract
Here, we describe the synthesis, characterization, and in vitro biological evaluation of a series of transition metal complexes containing benzothiazole aniline (BTA). We employed BTA, which is known for its selective anticancer activity, and a salen-type Schiff-based ligand to coordinate several transition metals to achieve selective and synergistic cytotoxicity. The compounds obtained were characterized by NMR spectroscopy, mass spectrometry, Fourier transform infrared spectroscopy, and elemental analysis. The compounds L, MnL, FeL, CoL, and ZnL showed promising in vitro cytotoxicity against cancer cells, and they had a lower IC50 than that of the clinically used cisplatin. In particular, MnL had synergistic cytotoxicity against liver, breast, and colon cancer cells. Moreover, MnL, CoL, and CuL promoted the production of reactive oxygen species in HepG2 tumor cell lines. The lead compound of this series, MnL, remained stable in physiological settings, and docking results showed that it interacted rationally with the minor groove of DNA. Therefore, MnL may serve as a viable alternative to platinum-based chemotherapy.
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9
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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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10
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Hylland KT, Schmidtke IL, Wragg DS, Nova A, Tilset M. Synthesis of substituted (N,C) and (N,C,C) Au(III) complexes: the influence of sterics and electronics on cyclometalation reactions. Dalton Trans 2022; 51:5082-5097. [PMID: 35262546 DOI: 10.1039/d2dt00371f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclometalated Au(III) complexes are of interest due to their catalytic, medicinal, and photophysical properties. Herein, we describe the synthesis of derivatives of the type (N,C)Au(OAcF)2 (OAcF = trifluoroacetate) and (N,C,C)AuOAcF by a cyclometalation route, where (N,C) and (N,C,C) are chelating 2-arylpyridine ligands. The scope of the synthesis is explored by substituting the 2-arylpyridine core with electron donor or acceptor substituents at one or both rings. Notably, a variety of functionalized Au(III) complexes can be obtained in one step from the corresponding ligand and Au(OAc)3, eliminating the need for organomercury intermediates, which is commonly reported for similar syntheses. The influence of substituents in the ligand backbone on the resulting complexes was assessed using DFT calculations, 15N NMR spectroscopy and single-crystal X-ray diffraction analysis. A correlation between the electronic properties of the (N,C) ligands and their ability to undergo cyclometalation was found from experimental studies combined with natural charge analysis, suggesting the cyclometalation at Au(III) to take place via an electrophilic aromatic substitution-type mechanism. The formation of Au(III) pincer complexes from tridentate (N,C,C) ligands was investigated by synthesis and DFT calculations, in order to assess the feasibility of C(sp3)-H bond activation as a synthetic pathway to (N,C,C) cyclometalated Au(III) complexes. It was found that C(sp3)-H bond activation is feasible for ligands containing different alkyl groups (isopropyl and ethyl), although the C-H activation is less energetically favored compared to a ligand containing tert-butyl groups.
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Affiliation(s)
- Knut T Hylland
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
| | - Inga L Schmidtke
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
| | - David S Wragg
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
| | - Ainara Nova
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway.,Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, N-0315 Oslo, Norway.,UiT-The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Mats Tilset
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway.,Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, N-0315 Oslo, Norway
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11
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Milbeo P, Quintin F, Moulat L, Didierjean C, Martinez J, Bantreil X, Calmès M, Lamaty F. Synthesis, characterisation and cytotoxic activity evaluation of new metal-salen complexes based on the 1,2-bicyclo[2.2.2]octane bridge. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152706] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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12
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Baecker D, Sesli Ö, Knabl L, Huber S, Orth-Höller D, Gust R. Investigating the antibacterial activity of salen/salophene metal complexes: Induction of ferroptosis as part of the mode of action. Eur J Med Chem 2020; 209:112907. [PMID: 33069056 DOI: 10.1016/j.ejmech.2020.112907] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 12/16/2022]
Abstract
The continuous increase of resistant bacteria including Staphylococcus aureus and its methicillin-resistant phenotype (MRSA) is currently one of the major challenges in medicine. Therefore, the discovery of novel lead structures for the design of drugs to fight against infections caused by these bacteria is urgently needed. In this structure-activity relationship study, metal-based drugs were investigated for the treatment of resistant pathogens. The selected Ni(II), Cu(II), Zn(II), Mn(III), and Fe(II/III) complexes differ in their salen- and salophene-type Schiff base ligands. The in vitro activity was evaluated using gram-positive (S. aureus and MRSA) and gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa). Especially the iron(III) complexes displayed promising antimicrobial effects against gram-positive bacteria, with MIC90 values ranging from 0.781 to 50 μg/mL. Among them, chlorido[(N,N'-bis(salicylidene)-1,2-phenylenediamine]iron(III) (6) showed the best MIC90 value (0.781 μg/mL = 1.93 μmol/L) against S. aureus and MRSA. Complex 6 was comparably potent as ciprofloxacin against S. aureus (0.391 μg/mL = 1.18 μmol/L) and only marginally less active than tetracycline against MRSA (0.391 μg/mL = 0.88 μmol/L). As part of the mode of action, ferroptosis was identified. Applying compound 6 (10 μg/mL), both gram-positive strains grown in PBS were killed within 20 min. This efficacy basically documents that salophene iron(III) complexes represent possible lead structures for the further development of antibacterial metal complexes.
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Affiliation(s)
- Daniel Baecker
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, CCB - Centrum for Chemistry and Biomedicine, Innrain 80-82, 6020, Innsbruck, Austria
| | - Özcan Sesli
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, CCB - Centrum for Chemistry and Biomedicine, Innrain 80-82, 6020, Innsbruck, Austria; Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, 6020, Innsbruck, Austria
| | - Ludwig Knabl
- Institute of Virology, Medical University of Innsbruck, Peter-Mayr-Straße 4b, 6020, Innsbruck, Austria
| | - Silke Huber
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, 6020, Innsbruck, Austria
| | - Dorothea Orth-Höller
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, 6020, Innsbruck, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, CCB - Centrum for Chemistry and Biomedicine, Innrain 80-82, 6020, Innsbruck, Austria.
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13
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A kinetic study and mechanisms of reduction of N, N'-phenylene bis(salicyalideneiminato)cobalt(III) by L-ascorbic acid in DMSO-water medium. Heliyon 2020; 6:e04621. [PMID: 32939409 PMCID: PMC7479326 DOI: 10.1016/j.heliyon.2020.e04621] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/17/2020] [Accepted: 07/30/2020] [Indexed: 01/01/2023] Open
Abstract
The kinetics of reduction of N, N1-phenylenebis-(salicylideneiminato)cobalt (III), referred to as [Co(Salophen)]+ by L-ascorbic acid (H2A) was studied in mixed aqueous medium (DMSO:H2O; 1:4 v/v) under pseudo-first-order conditions at 33 ± 1 °C, μ = 0.1 mol dm−3 (NaCl) and λmax = 470 nm. L-ascorbic acid was oxidized to dehydroascorbic acid with kinetics that was first order in both the [H2A] and [Co(Salophen)+] and second-order overall. The reaction involves two parallel reaction pathways; an acid-dependent and the inverse acid-dependent pathways. The inverse acid pathway shows that there is a pre-equilibrium step before the rate determining-step in which a proton is lost. The kinetics followed negative Brønsted–Debye salt effect. Evidence was obtained for the presence of free radicals but none to support the formation of an intermediate complex of significant stability during the reaction. Overall, the data obtained suggest an outer-sphere mechanism for the reaction. A plausible mechanism is proposed.
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14
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Hopff SM, Onambele LA, Brandenburg M, Berkessel A, Prokop A. Discovery of a cobalt (III) salen complex that induces apoptosis in Burkitt like lymphoma and leukemia cells, overcoming multidrug resistance in vitro. Bioorg Chem 2020; 104:104193. [PMID: 32947134 DOI: 10.1016/j.bioorg.2020.104193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/19/2020] [Accepted: 08/02/2020] [Indexed: 01/09/2023]
Abstract
A very small number of cobalt complexes is examined in oncology research. In this work, we investigate the cobalt (III) salen complex MBR-60 that turns out to be a promising anticancer drug. It induces apoptosis in Nalm6 leukemia and BJAB lymphoma cells and overcomes multidrug resistances by blocking the drug efflux pump P-glycoprotein. It further develops the apoptotic effects over the intrinsic pathway. An activation of caspase-3, caspase-8 and caspase-9 can be detected by western blot analysis. The independence of CD95 is shown by similar apoptotic inductions in BJAB and BJAB FADDdn cells. MBR-60 displays synergistic effects with daunorubicin and vincristine and has a selectivity to tumor cells. In comparison to the apoptotic effects of MBR-60 in BJAB lymphoma cells, the cobalt-free ligand 5 does not influence these cells. The research highlights that a cobalt complex has a therapeutic potential for cancer treating with a focus on drug-resistant tumors.
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Affiliation(s)
- Sina M Hopff
- Department of Pediatric Hematology/Oncology, Children's Hospital Cologne, Amsterdamer Straße 59, 50735 Cologne, Germany.
| | - Liliane A Onambele
- Department of Pediatric Hematology/Oncology, Children's Hospital Cologne, Amsterdamer Straße 59, 50735 Cologne, Germany
| | - Marc Brandenburg
- Department of Chemistry, Organic Chemistry, University of Cologne, Greinstraße 4, 50939 Cologne, Germany
| | - Albrecht Berkessel
- Department of Chemistry, Organic Chemistry, University of Cologne, Greinstraße 4, 50939 Cologne, Germany
| | - Aram Prokop
- Department of Pediatric Hematology/Oncology, Children's Hospital Cologne, Amsterdamer Straße 59, 50735 Cologne, Germany; Department of Pediatric Hematology/Oncology, Helios Clinic Schwerin, Wismarsche Straße 393-397, 19055 Schwerin, Germany
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15
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Bian M, Fan R, Jiang G, Wang Y, Lu Y, Liu W. Halo and Pseudohalo Gold(I)-NHC Complexes Derived from 4,5-Diarylimidazoles with Excellent In Vitro and In Vivo Anticancer Activities Against HCC. J Med Chem 2020; 63:9197-9211. [PMID: 32787098 DOI: 10.1021/acs.jmedchem.0c00257] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A series of halo and pseudohalo gold(I)-NHC complexes (NHC-Au-X) (X = Cl, Br, I, NCO, and OAc) derived from 4,5-diarylimidazoles were synthesized, structurally characterized, and analyzed for their biological activities. The most active complex was iodo(1,3-diethyl-4,5-bis(4-methoxyphenyl)imidazol-2-ylidene)gold(I) (6), which was at least 2-fold more cytotoxic than cisplatin and auranofin against hepatocellular carcinoma (HCC) cells. In vivo studies indicated that complex 6 exhibited a considerably higher anticancer efficacy (IRT = 75.7%) than cisplatin (IRT = 44.4%) in a HepG2 xenograft mouse model and ameliorated liver injury caused by CCl4 in chronic HCC. Further studies revealed that complex 6 can inhibit the expression of the thioredoxin reductase (TrxR) both in vitro and in vivo, block the HepG2 cells in the G2/M phase, induce reactive oxygen species (ROS) production, damage mitochondrial membrane potential (MMP), and promote HepG2 cell apoptosis.
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Affiliation(s)
- Mianli Bian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Rong Fan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Guizhi Jiang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Yingxiang Wang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Yunlong Lu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Wukun Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China.,State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China.,State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, P. R. China
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16
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Synthesis, characterization and in vitro biological evaluation of novel organotin(IV) compounds with derivatives of 2-(5-arylidene-2,4-dioxothiazolidin-3-yl)propanoic acid. J Inorg Biochem 2020; 211:111207. [PMID: 32801055 DOI: 10.1016/j.jinorgbio.2020.111207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 12/14/2022]
Abstract
Two novel triphenyltin(IV) compounds, [Ph3SnL1] (L1 = 2-(5-(4-fluorobenzylidene)-2,4-dioxotetrahydrothiazole-3-yl)propanoate (1)) and [Ph3SnL2] (L2 = 2-(5-(5-methyl-2-furfurylidene)-2,4-dioxotetrahydrothiazole-3-yl)propanoate (2)) were synthesized and characterized by FT-IR, (1H and 13C) NMR spectroscopy, mass spectrometry, and elemental microanalysis. The in vitro anticancer activity of the synthesized organotin(IV) compounds was determined against four tumor cell lines: PC-3 (prostate), HT-29 (colon), MCF-7 (breast), and HepG2 (hepatic) using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-12 diphenyltetrazolium bromide) and CV (crystal violet) assays. The IC50 values are found to be in the range from 0.11 to 0.50 μM. Compound 1 exhibits the highest activity toward PC-3 cells (IC50 = 0.115 ± 0.009 μM; CV assay). The tin and platinum uptake in PC-3 cells showed a threefold lower uptake of tin in comparison to platinum (as cisplatin). Together with its higher activity this indicates a much higher cell inhibition potential of the tin compounds (calculated to ca. 50 to 100 times). Morphological analysis suggested that the compounds induce apoptosis in PC-3 cells, and flow cytometry analysis revealed that 1 and 2 induce autophagy as well as NO (nitric oxide) production.
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17
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Zou BQ, Huang XL, Qin QP, Wang ZF, Wu XY, Tan MX, Liang H. Transition metal complexes with 6,7-dichloro-5,8-quinolinedione as mitochondria-targeted anticancer agents. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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18
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Bian M, Wang X, Sun Y, Liu W. Synthesis and biological evaluation of gold(III) Schiff base complexes for the treatment of hepatocellular carcinoma through attenuating TrxR activity. Eur J Med Chem 2020; 193:112234. [PMID: 32213395 DOI: 10.1016/j.ejmech.2020.112234] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/04/2020] [Accepted: 03/11/2020] [Indexed: 12/29/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers and a leading cause of death worldwide. Increased thioredoxin reductase (TrxR) levels were recently identified as possible prognostic markers for HCC. Here, four gold(III) complexes 1b-4b bearing Schiff base ligands were synthesized, characterized, and screened for antitumor activity against HCC. All complexes triggered significant antiproliferative effects against HCC cells, especially the most active complex 1b induced HepG2 cells apoptosis by activating the endoplasmic reticulum stress (ERS). 1b could clearly inhibit the TrxR activity to elevate reactive oxygen species (ROS), mediate ERS and lead to mitochondrial dysfunction. Notably, treatment of 1b improved the CCl4-induced liver damage in vivo by down-regulation of TrxR expression and inflammation level.
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Affiliation(s)
- Mianli Bian
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Xin Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Ying Sun
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Wukun Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210023, PR China.
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19
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Synthesis, single crystal X-ray, spectroscopic characterization and biological activities of Mn2+, Co2+, Ni2+ and Fe3+ complexes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127240] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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20
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Exploring the DNA binding efficacy of Cobalt(II) and Copper(II) complexes of hydroxamic acids and explicating their anti-cancer propensity. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Alfaifi MY, Zein MAE, Shati AA, Alshehri MA, Elbehairi SEI, Hafez HS, Elshaarawy RF. Synthesis, photophysical behavior and biomolecular reactivity of new triphenylphosphonium-based Pd(II)salphens as new anticancer candidates. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.112083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Alfaifi MY, Elbehairi SEI, Hafez HS, Elshaarawy RF. Spectroscopic exploration of binding of new imidazolium-based palladium(II) saldach complexes with CT-DNA as anticancer agents against HER2/neu overexpression. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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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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24
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Bingul M, Şenkuytu E, Saglam MF, Boga M, Kandemir H, Sengul IF. Synthesis, photophysical and antioxidant properties of carbazole-based bis-thiosemicarbazones. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03844-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Janković N, Trifunović Ristovski J, Vraneš M, Tot A, Petronijević J, Joksimović N, Stanojković T, Đorđić Crnogorac M, Petrović N, Boljević I, Matić IZ, Bogdanović GA, Mikov M, Bugarčić Z. Discovery of the Biginelli hybrids as novel caspase-9 activators in apoptotic machines: Lipophilicity, molecular docking study, influence on angiogenesis gene and miR-21 expression levels. Bioorg Chem 2019; 86:569-582. [DOI: 10.1016/j.bioorg.2019.02.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/03/2019] [Accepted: 02/09/2019] [Indexed: 02/06/2023]
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26
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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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Thakur Y, Tripathi M, Verma B, Khilari R, Agrawal R, Likheshwari, Khursheed Siddiqi M, Pande R, Mohapatra E, Khan RH. Interaction of cobalt(II) and copper(II) hydroxamates with polyriboadenylic acid: An insight into RNA based drug designing. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:481-508. [PMID: 30732529 DOI: 10.1080/15257770.2018.1562074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The polyadenylic acid [poly(A)] tail of mRNA plays a noteworthy role in the initiation of the translation, maturation, and stability of mRNA. It also significantly contributes to the production of alternate proteins in eukaryotic cells. Hence, it has recently been recognized as a prospective drug target. Binding affinity of bis(N-p-tolylbenzohydroxamato)Cobalt(II), [N-p-TBHA-Co(II)] (1) and bis(N-p-naphthylbenzohydroxamato)Copper(II), [N-p-NBHA-Cu(II)] (2) complexes with poly(A) have been investigated by biophysical techniques namely, absorption spectroscopy, fluorescence spectroscopy, diffuse reflectance infrared Fourier transform spectroscopy, circular dichroism spectroscopy, viscometric measurements and through molecular docking studies. The intrinsic binding constants (Kb) of complexes were determined following the order of N-p-TBHA-Co(II)] > N-p-NBHA-Cu(II), along with hyperchromism and a bathochromic shift for both complexes. The fluorescence quenching method revealed an interaction between poly(A)-N-p-TBHA-Co(II)/poly(A)-N-p-NBHA-Cu(II). The mode of binding was also determined via the fluorescence ferrocyanide quenching method. The increase in the viscosity of poly(A) that occurred from increasing the concentration of the N-p-TBHA-Co(II)/N-p-NBHA-Cu(II) complex was scrutinized. The characteristics of the interaction site of poly(A) with N-p-TBHA-Co(II)/N-p-NBHA-Cu(II) were adenine and phosphate groups, as revealed by DRS-FTIR spectroscopy. Based on these observations, a partial intercalative mode of the binding of poly(A) has been proposed for both complexes. Circular dichroism confirmed the interaction of both the complexes with poly(A). The molecular docking results illustrated that complexes strongly interact with poly(A) via the relative binding energies of the docked structure as -259.39eV and -226.30eV for N-p-TBHA-Co(II) and N-p-NBHA-Cu(II) respectively. Moreover, the binding affinity of N-p-TBHA-Co(II) is higher in all aspects than N-p-NBHA-Cu(II) for poly(A).
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Affiliation(s)
- Yamini Thakur
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Mamta Tripathi
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Bharati Verma
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Rubi Khilari
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Rainy Agrawal
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Likheshwari
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Mohammad Khursheed Siddiqi
- b Interdisciplinary Biotechnology Unit, Aligarh Muslim University , Aligarh - 202002 , Uttar Pradesh , India
| | - Rama Pande
- a School of Studies in Chemistry , Pt. Ravishankar Shukla University, Raipur , Chhattisgarh - 492010
| | - Eli Mohapatra
- c Biochemistry Department , All India Institute of Medical Sciences, Raipur , Chhattisgarh - 492099
| | - Rizwan Hasan Khan
- b Interdisciplinary Biotechnology Unit, Aligarh Muslim University , Aligarh - 202002 , Uttar Pradesh , India
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Salehi M, Faghani F, Kubicki M, Bayat M. New complexes of Ni(II) and Cu(II) with tridentate ONO Schiff base ligand: synthesis, crystal structures, electrochemical and theoretical investigation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1412-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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29
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Nikolić MA, Stanković JA, Tanasković SB. Synthesis, characterization, and in vitro antiproliferative and antibacterial studies of tetraazamacrocyclic complexes of Co(II) and Cu(II) with pyromellitic acid. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1459581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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30
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Erxleben A. Transition metal salen complexes in bioinorganic and medicinal chemistry. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.060] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Takizawa N, Kimura T, Watanabe T, Shibasaki M. Anti-influenza virus activity of a salcomine derivative mediated by inhibition of viral RNA synthesis. Arch Virol 2018; 163:1607-1614. [PMID: 29497849 DOI: 10.1007/s00705-018-3779-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/19/2018] [Indexed: 12/25/2022]
Abstract
Influenza virus infection is a major threat to global health. Although vaccines and anti-influenza virus drugs are available, annual influenza virus epidemics result in severe illness, and an influenza pandemic occurs every 20-30 years. To identify candidate anti-influenza virus compounds, we screened approximately 5,000 compounds in an in-house library. We identified MZ7465, a salcomine derivative, as a potent inhibitor of influenza virus propagation. We analyzed the antiviral propagation mechanism of the hit compound by determining the amounts of viral proteins and RNA in infected cells treated with or without the hit compound. Treatment of infected cells with MZ7465 decreased both viral protein and RNA synthesis. In addition, an in vitro assay showed that viral RNA synthesis was directly inhibited by MZ7465. These results suggest that salcomine and its derivatives are potential candidates for the treatment of influenza virus infections.
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MESH Headings
- Animals
- Antiviral Agents/chemistry
- Antiviral Agents/pharmacology
- Bronchi/drug effects
- Bronchi/pathology
- Bronchi/virology
- Cell Line
- Dogs
- Epithelial Cells/drug effects
- Epithelial Cells/pathology
- Epithelial Cells/virology
- Gene Expression Regulation, Viral
- HEK293 Cells
- High-Throughput Screening Assays
- Humans
- Influenza A Virus, H1N1 Subtype/drug effects
- Influenza A Virus, H1N1 Subtype/genetics
- Influenza A Virus, H1N1 Subtype/growth & development
- Influenza A Virus, H3N2 Subtype/drug effects
- Influenza A Virus, H3N2 Subtype/genetics
- Influenza A Virus, H3N2 Subtype/growth & development
- Madin Darby Canine Kidney Cells
- Organometallic Compounds/chemistry
- Organometallic Compounds/pharmacology
- RNA, Viral/antagonists & inhibitors
- RNA, Viral/biosynthesis
- RNA, Viral/genetics
- Small Molecule Libraries/chemistry
- Small Molecule Libraries/pharmacology
- Structure-Activity Relationship
- Viral Proteins/antagonists & inhibitors
- Viral Proteins/biosynthesis
- Viral Proteins/genetics
- Virus Replication/drug effects
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Affiliation(s)
- Naoki Takizawa
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Tokyo, Japan.
| | - Tomoyuki Kimura
- Laboratory of Synthetic Organic Chemistry, Institute of Microbial Chemistry (BIKAKEN), Tokyo, Japan
| | - Takumi Watanabe
- Laboratory of Synthetic Organic Chemistry, Institute of Microbial Chemistry (BIKAKEN), Tokyo, Japan
| | - Masakatsu Shibasaki
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Tokyo, Japan
- Laboratory of Synthetic Organic Chemistry, Institute of Microbial Chemistry (BIKAKEN), Tokyo, Japan
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32
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Zhang C, Sutherland M, Herasymchuk K, Clarke RM, Thompson JR, Chiang L, Walsby CJ, Storr T. Octahedral Co(III) salen complexes: the role of peripheral ligand electronics on axial ligand release upon reduction. CAN J CHEM 2018. [DOI: 10.1139/cjc-2017-0277] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A series of octahedral CoIII salen complexes (where salen represents a N2O2 bis-Schiff-base bis-phenolate framework) were prepared with axial imidazole ligating groups. When using 1-methylimidazole (1-MeIm) axial ligands, the CoIII/CoII reduction potential could be altered by 220 mV via variation of the electron-donating ability of the para-ring substituents (R = H (1), OMe (2), tBu (3), Br (4), NO2 (5), and CF3 (6)). In addition, the irreversibility of the reduction process suggested substantial geometrical changes and axial ligand exchange upon reduction to the more labile CoII oxidation state. Installing an imidazole-coumarin conjugate as the axial ligands resulted in fluorescence quenching when bound to the CoIII centre (R = H (7), OMe (8), and CF3 (9)). The redox properties and fluorescence increase upon ligand release for 7–9 were studied under reducing conditions and in the presence of excess competing ligand (1-MeIm). It was determined that the Lewis acidity of the CoIII centre was the dominant factor in controlling axial ligand exchange for this series of complexes.
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Affiliation(s)
- Chen Zhang
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Mathew Sutherland
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Khrystyna Herasymchuk
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Ryan M. Clarke
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - John R. Thompson
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Linus Chiang
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Charles J. Walsby
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Tim Storr
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
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Ali A, Kamra M, Bhan A, Mandal SS, Bhattacharya S. New Fe(iii) and Co(ii) salen complexes with pendant distamycins: selective targeting of cancer cells by DNA damage and mitochondrial pathways. Dalton Trans 2018; 45:9345-53. [PMID: 27186601 DOI: 10.1039/c5dt04374c] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Minor groove binding distamycin like moieties were conjugated with core salens and the corresponding Fe(iii) and Co(ii) complexes were synthesized. Herein, we have shown efficient DNA minor groove binding specificities along with excellent DNA cleavage capacities with metallosalen conjugates. The metal complexes showed toxicity toward various cancer cells over normal cells with high specificity. Interestingly, the Co(ii) complexes exhibited greater activity than the Fe(iii) complexes in accordance with the stronger affinity of the former in the biophysical studies. Active DNA damage, and prominent nuclear condensation along with the release of cytochrome-c from the mitochondria unanimously showed that the metal complexes followed apoptotic pathways to induce cell death.
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Affiliation(s)
- Asfa Ali
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - Mohini Kamra
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - Arunoday Bhan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Subhrangsu S Mandal
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Santanu Bhattacharya
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India and Indian Association for the Cultivation of Science, Kolkata, West Bengal 700 032, India.
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Joksimović N, Baskić D, Popović S, Zarić M, Kosanić M, Ranković B, Stanojković T, Novaković SB, Davidović G, Bugarčić Z, Janković N. Synthesis, characterization, biological activity, DNA and BSA binding study: novel copper(ii) complexes with 2-hydroxy-4-aryl-4-oxo-2-butenoate. Dalton Trans 2018; 45:15067-15077. [PMID: 27711668 DOI: 10.1039/c6dt02257j] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A serie of novel square pyramidal copper(ii) complexes [Cu(L)2H2O] (3a-d) with O,O-bidentate ligands [L = ethyl-2-hydroxy-4-aryl-4-oxo-2-butenoate; aryl = 3-methoxyphenyl-2a, (E)-2-phenylvinyl-2b, (E)-2-(4'-hydroxy-3'-methoxyphenyl)vinyl-2c, 3-nitrophenyl-2d, 2-thienyl-2e] were synthesized and characterized by spectral (UV-Vis, IR, ESI-MS and EPR), elemental and X-ray analysis. The antimicrobial activity was estimated by the determination of the minimal inhibitory concentration (MIC) using the broth microdilution method. The most active antibacterial compounds were 3c and 3d, while the best antifungal activity was showed by complexes 3b and 3e. The lowest MIC value (0.048 mg mL-1) was measured for 3c against Proteus mirabilis. The cytotoxic activity was tested using the MTT method on human epithelial carcinoma HeLa cells, human lung carcinoma A549 cells and human colon carcinoma LS174 cells. All complexes showed extremely better cytotoxic activity compared to cisplatin at all tested concentrations. Compound 3d expressed the best activity against all tested cell lines with IC50 values ranging from 7.45 to 7.91 μg mL-1. The type of cell death and the impact on the cell cycle for 3d and 3e were evaluated by flow cytometry. Both compounds induced apoptosis and S phase cell cycle arrest. The interactions between selected complexes (3d and 3e) and CT-DNA or bovine serum albumin (BSA) were investigated by the fluorescence spectroscopic method. Competitive experiments with ethidium bromide (EB) indicated that 3d and 3e have a propensity to displace EB from the EB-DNA complex through intercalation suggesting strong competition with EB [Ksv = (1.4 ± 0.2) and (2.9 ± 0.1) × 104 M-1, respectively]. Ksv values indicate that these complexes bind to DNA covalently and non-covalently. The achieved results in the fluorescence titration of BSA with 3d and 3e [Ka = (2.9 ± 0.2) × 106 and (2.5 ± 0.2) × 105 M, respectively] showed that the fluorescence quenching of BSA is a result of the formation of the 3d- and 3e-BSA complexes. The obtained Ka values are high enough to ensure that a significant amount of 3d and 3e gets transported and distributed through the cells.
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Affiliation(s)
- Nenad Joksimović
- Faculty of Science, University of Kragujevac, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
| | - Dejan Baskić
- Centre for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Suzana Popović
- Centre for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Milan Zarić
- Department of Biochemistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Marijana Kosanić
- Faculty of Science, University of Kragujevac, Department of Biology and Ecology, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Branislav Ranković
- Faculty of Science, University of Kragujevac, Department of Biology and Ecology, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Tatjana Stanojković
- Institute of Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia
| | - Sladjana B Novaković
- Vinča Institute of Nuclear Science, University of Belgrade University of Belgrade, P.O. Box 522, 11001, Belgrade, Serbia
| | - Goran Davidović
- Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Zorica Bugarčić
- Faculty of Science, University of Kragujevac, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
| | - Nenad Janković
- Faculty of Science, University of Kragujevac, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
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Yin HY, Tang J, Zhang JL. Introducing Metallosalens into Biological Studies: The Renaissance of Traditional Coordination Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700695] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hao-Yan Yin
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
| | - Juan Tang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
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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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King AP, Gellineau HA, Ahn JE, MacMillan SN, Wilson JJ. Bis(thiosemicarbazone) Complexes of Cobalt(III). Synthesis, Characterization, and Anticancer Potential. Inorg Chem 2017; 56:6609-6623. [PMID: 28509538 PMCID: PMC8113979 DOI: 10.1021/acs.inorgchem.7b00710] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nine bis(thiosemicarbazone) (BTSC) cobalt(III) complexes of the general formula [Co(BTSC)(L)2]NO3 were synthesized, where BTSC = diacetyl bis(thiosemicarbazone) (ATS), pyruvaldehyde bis(thiosemicarbazone) (PTS), or glyoxal bis(thiosemicarbazone) (GTS) and L = ammonia, imidazole (Im), or benzylamine (BnA). These compounds were characterized by multinuclear NMR spectroscopy, mass spectrometry, cyclic voltammetry, and X-ray crystallography. Their stability in phosphate-buffered saline was investigated and found to be highly dependent on the nature of the axial ligand, L. These studies revealed that complex stability is primarily dictated by the axial ligand following the sequence NH3 > Im > BnA. The cellular uptake and cytotoxicity in cancer cells were also determined. Both the cellular uptake and cytotoxicity were significantly affected by the nature of the equatorial BTSC. Complexes of ATS were taken up much more effectively than those of PTS and GTS. The cytotoxicity of the complexes was correlated to that of the free ligand. Cell uptake and cytotoxicity were also determined under hypoxic conditions. Only minor differences in the hypoxia activity and uptake were observed. Treatment of the cancer cells with the copper-depleting agent tetrathiomolybdate decreased the cytotoxic potency of the complexes, indicating that they may operate via a copper-dependent mechanism. These results provide a structure-activity relationship for this class of compounds, which may be applied for the rational design of new cobalt(III) anticancer agents.
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Affiliation(s)
- A. Paden King
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Hendryck A. Gellineau
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Jung-Eun Ahn
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Samantha N. MacMillan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
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Shalash AM, Abu Ali HI. Synthesis, crystallographic, spectroscopic studies and biological activity of new cobalt(II) complexes with bioactive mixed sulindac and nitrogen-donor ligands. Chem Cent J 2017; 11:40. [PMID: 29086831 PMCID: PMC5423883 DOI: 10.1186/s13065-017-0268-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/03/2017] [Indexed: 01/09/2023] Open
Abstract
Four novel complexes [Co(H2O)4(sul)2] 1, [Co(2-ampy)2(sul)2] 2, [Co(H2O)2(1,10-phen) (sul)2] 3 and [Co(2,9-dimephen)(sul)2] 4 (sul = sulindac, 2-ampy = 2-amino pyridine, 1,10-phen = 1,10-phenanthroline and 2,9-dimeph = 2,9-dimethyl-1,10-phenanthroline) were prepared and characterized by IR, UV-Visible spectroscopy and magnetic properties. The crystal structures of complexes 1 and 4 were determined by single-crystal X-ray diffraction. In-vitro anti-bacterial activity for the prepared complexes against Gram-positive (Staphylococcus epidermidis, Staphylococcus aureus) and Gram-negative (Bordetella, Escherichia coli) bacteria and Yeast species (Saccharomyces and Candida) were performed using agar well-diffusion method. Only complex 4 showed reasonable activity against yeast. All compounds showed more anti-bacterial activity against Gram-positive bacteria than Gram-negative. Graphical abstract This work reports synthesis, crystallographic, spectroscopic studies and biological activity of new cobalt(II) complexes with bioactive mixed sulindac and nitrogen-donor ligands. The crystal structures of complexes 1 and 4 were determined using single-crystal X-ray diffraction. In-vitro anti-bacterial activity of the prepared complexes and their parent ligands were investigated against different Gram-positive and Gram-negative bacteria using agar diffusion method.
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Affiliation(s)
- Asia M. Shalash
- Department of Chemistry, Birzeit University, P.O. Box 14, West Bank, Palestine
| | - Hijazi I. Abu Ali
- Department of Chemistry, Birzeit University, P.O. Box 14, West Bank, Palestine
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Hübner D, Kaluđerović MR, Gómez-Ruiz S, Kaluđerović GN. Anionic chlorido(triphenyl)tin(IV) bearing N-phthaloylglycinato or 1,2,4-benzenetricarboxylato 1,2-anhydride ligands: potential cytotoxic and apoptosis-inducing agents against several types of cancer. Chem Biol Drug Des 2016; 89:628-633. [PMID: 27748051 DOI: 10.1111/cbdd.12885] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/09/2016] [Accepted: 10/08/2016] [Indexed: 01/08/2023]
Abstract
Two ionic triphenyltin(IV) chloride carboxylate compounds of the formula [NHEt3 ][Ph3 SnCl(L)] [LH = N-phthaloylglycine (P-GlyH), 1; 1,2,4-benzenetricarboxylic 1,2-anhydride (BTCH), 2] were tested for the in vitro activity against 518A2 (melanoma), FaDu (head and neck carcinoma), HT-29 (colon cancer), MCF-7 (breast carcinoma), and SW1736 (thyroid cancer) cell lines. The ammonium salts of the carboxylic acids are found to be not active, while anionic [Ph3 SnCl(L)]- exhibited high cytotoxicity in nM range, both higher activity and selectivity than cisplatin. Compounds 1 and 2 are inducing apoptosis, which was proved with the morphological and biochemical features such as membrane blebbing, translocation of phosphatidylserine, and DNA fragmentation. Thus, accumulation of cells in sub-G1 phase is observed. Both anionic organotin(IV) compounds showed potent cytotoxic and apoptotic properties against five cancer cell lines of various histogenetic origin.
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Affiliation(s)
- Denise Hübner
- Institute of Virology, University of Leipzig, Leipzig, Germany
| | - Milena R Kaluđerović
- Department of Oral, Maxillary, Facial and Reconstructive Plastic Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Santiago Gómez-Ruiz
- Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - Goran N Kaluđerović
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Halle (Saale), Germany
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40
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Qin QP, Qin JL, Meng T, Lin WH, Zhang CH, Wei ZZ, Chen JN, Liu YC, Liang H, Chen ZF. High in vivo antitumor activity of cobalt oxoisoaporphine complexes by targeting G-quadruplex DNA, telomerase and disrupting mitochondrial functions. Eur J Med Chem 2016; 124:380-392. [DOI: 10.1016/j.ejmech.2016.08.063] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 12/27/2022]
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41
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Tektas O, Akkemik E, Baykara H. Investigation of the Effect of Some Optically Active Imine Compounds on the Enzyme Activities of hCA-I and hCA-II under In Vitro Conditions: An Experimental and Theoretical Study. J Biochem Mol Toxicol 2016; 30:277-86. [DOI: 10.1002/jbt.21788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 12/06/2015] [Accepted: 12/15/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Osman Tektas
- Department of Chemistry, Faculty of Arts and Sciences; Siirt University; 56100 Siirt Turkey
| | - Ebru Akkemik
- Faculty of Engineering and Architecture, Food Engineering; Siirt University; 56100 Siirt Turkey
| | - Haci Baykara
- Department of Chemistry, Faculty of Arts and Sciences; Siirt University; 56100 Siirt Turkey
- Center of Nanotechnology Research and Development (CIDNA), Facultad de Ingeniería Mecánica y Ciencias de la Producción; Escuela Superior Politécnica del Litoral, ESPOL; Campus Gustavo Galindo Km 30.5 Vía Perimetral Guayaquil Ecuador
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Ejidike IP, Ajibade PA. Ruthenium(III) Complexes of Heterocyclic Tridentate (ONN) Schiff Base: Synthesis, Characterization and its Biological Properties as an Antiradical and Antiproliferative Agent. Int J Mol Sci 2016; 17:ijms17010060. [PMID: 26742030 PMCID: PMC4730305 DOI: 10.3390/ijms17010060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 11/11/2015] [Accepted: 11/13/2015] [Indexed: 02/04/2023] Open
Abstract
The current work reports the synthesis, spectroscopic studies, antiradical and antiproliferative properties of four ruthenium(III) complexes of heterocyclic tridentate Schiff base bearing a simple 2′,4′-dihydroxyacetophenone functionality and ethylenediamine as the bridging ligand with RCHO moiety. The reaction of the tridentate ligands with RuCl3·3H2O lead to the formation of neutral complexes of the type [Ru(L)Cl2(H2O)] (where L = tridentate NNO ligands). The compounds were characterized by elemental analysis, UV-vis, conductivity measurements, FTIR spectroscopy and confirmed the proposed octahedral geometry around the Ru ion. The Ru(III) compounds showed antiradical potentials against 2,2-Diphenyl-1-Picrylhydrazyl (DPPH) and 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals, with DPPH scavenging capability in the order: [(PAEBOD)RuCl2] > [(BZEBOD)RuCl2] > [(MOABOD)RuCl2] > [Vit. C] > [rutin] > [(METBOD)RuCl2], and ABTS radical in the order: [(PAEBOD)RuCl2] < [(MOABOD)RuCl2] < [(BZEBOD)RuCl2] < [(METBOD)RuCl2]. Furthermore, in vitro anti-proliferative activity was investigated against three human cancer cell lines: renal cancer cell (TK-10), melanoma cancer cell (UACC-62) and breast cancer cell (MCF-7) by SRB assay.
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Affiliation(s)
- Ikechukwu P Ejidike
- Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, P.B. X1314, Alice 5700, South Africa.
| | - Peter A Ajibade
- Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, P.B. X1314, Alice 5700, South Africa.
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Mary Imelda Jayaseeli A, Ramdass A, Rajagopal S. Selective H2O2 oxidation of organic sulfides to sulfoxides catalyzed by cobalt(III)–salen ion. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ferreira E, Munyaneza A, Omondi B, Meijboom R, Cronjé MJ. The effect of 1:2 Ag(I) thiocyanate complexes in MCF-7 breast cancer cells. Biometals 2015; 28:765-81. [DOI: 10.1007/s10534-015-9865-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 05/28/2015] [Indexed: 01/03/2023]
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Durgun M, Turkmen H, Ceruso M, Supuran CT. Synthesis of Schiff base derivatives of 4-(2-aminoethyl)-benzenesulfonamide with inhibitory activity against carbonic anhydrase isoforms I, II, IX and XII. Bioorg Med Chem Lett 2015; 25:2377-81. [PMID: 25913118 DOI: 10.1016/j.bmcl.2015.04.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 04/02/2015] [Accepted: 04/04/2015] [Indexed: 11/26/2022]
Abstract
Schiff base derivatives were obtained by reaction of 4-(2-aminoethyl)benzenesulfonamide with aromatic aldehydes. The corresponding secondary amine derivatives were also prepared by reduction of the imine compounds with NaBH4. These derivatives were investigated as inhibitors of four human carbonic anhydrase (CA, EC 4.2.1.1) isoforms, the cytosolic isozymes hCA I and II, as well as, the transmembrane, tumor-associated hCA IX and XII. Some of the newly synthesised compounds showed effective inhibitory activities against these CA isozymes. Many low nanomolar inhibitors were detected against all isoforms among the secondary amines whereas the Schiff bases were by far less active compared to the corresponding reduced derivatives among all investigated isoforms.
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Affiliation(s)
- Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, 63190 Sanliurfa, Turkey.
| | - Hasan Turkmen
- Department of Medical Pharmacology, Faculty of Medicine, Harran University, 63190 Sanliurfa, Turkey
| | - Mariangela Ceruso
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy; Università degli Studi di Firenze, Neurofarba Dept., Section of Pharmaceutical and Nutriceutical Sciences, Via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy.
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Salimi M, Abdi K, Kandelous HM, Hadadzadeh H, Azadmanesh K, Amanzadeh A, Sanati H. Antiproliferative effects of copper(II)-polypyridyl complexes in breast cancer cells through inducing apoptosis. Biometals 2015; 28:267-78. [PMID: 25673217 DOI: 10.1007/s10534-015-9820-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 01/02/2015] [Indexed: 11/29/2022]
Abstract
Although cisplatin has been used for decades to treat human cancer, some toxic side effects and resistance are observed. Previous investigations have suggested copper complexes as a novel class of tumor-cell apoptosis inducers. The present study aimed to evaluate the anti-breast cancer activities of two polypyridyl-based copper(II) complexes, [Cu(tpy)(dppz)](NO3)2 (1) and [Cu(tptz)2](NO3)2 (2) (tpy = 2,2':6',2″-terpyridine, dppz = dipyrido[3,2-a:2',3'-c]phenazine, tptz = 2,4,6-tris(2-pyridyl)-1,3,5-triazine), using human breast adenocarcinoma cell line (MCF-7). The ability of the complexes to cleave supercoiled DNA in the presence and absence of external agents was also examined. The apoptotic activities of the complexes were assessed using flow cytometry, fluorescence microscope and western blotting analysis. Our results indicated the high DNA affinity and nuclease activity of complexes 1 and 2. The cleavage mechanisms between the complexes and plasmid DNA are likely to involve a singlet oxygen or singlet oxygen-like entity as the reactive oxygen species. Complexes 1 and 2 also significantly inhibited the proliferation of MCF-7 cells in a dose-dependent manner (IC50 values = 4.57 and 1.98 μM at 24 h, respectively). Complex 2 remarkably induced MCF-7 cells to undergo apoptosis, which was demonstrated by cell morphology, annexin-V and propidium iodide staining. The caspase cascade was activated as shown by the proteolytic cleavage of caspase-3 after treatment of MCF-7 cells with complex 2. Additionally, complex 2 significantly increased the expression of the Bax-to-Bcl-2 ratio to induce apoptosis. In conclusion, these results revealed that complex 2 may be a potential and promising chemotherapeutic agent to treat breast cancer.
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Affiliation(s)
- Mona Salimi
- Department of Physiology and Pharmacology, Pasteur Institute of Iran, P.O. Box 13164, 3159915111, Tehran, Iran,
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Elshaarawy RF, Kheiralla ZH, Rushdy AA, Janiak C. New water soluble bis-imidazolium salts with a saldach scaffold: Synthesis, characterization and in vitro cytotoxicity/bactericidal studies. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Taherlo R, Salehi M. Synthesis, crystal structures, electrochemically studies and antibacterial properties of three new mono-nuclear and one very rare bi-nuclear cobalt(III) Schiff base complexes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.04.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Synthesis, crystal structures, DNA binding and cleavage activity of water soluble mono and dinuclear copper(II) complexes with tridentate ligands. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.01.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sujarani S, Ramu A. Docking of imines, cytotoxicity and DNA interaction studies of metal(II) complexes. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.11.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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