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Pivarcsik T, Kiss MA, Rapuš U, Kljun J, Spengler G, Frank É, Turel I, Enyedy ÉA. Organometallic Ru(II), Rh(III) and Re(I) complexes of sterane-based bidentate ligands: synthesis, solution speciation, interaction with biomolecules and anticancer activity. Dalton Trans 2024; 53:4984-5000. [PMID: 38406993 DOI: 10.1039/d3dt04138g] [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: 02/27/2024]
Abstract
In this study, we present the synthesis, characterization and in vitro cytotoxicity of six organometallic [Ru(II)(η6-p-cymene)(N,N)Cl]Cl, [Rh(III)(η5-C5Me5)(N,N)Cl]Cl and [Re(I)(CO)3(N,N)Cl] complexes, in which the (N,N) ligands are sterane-based 2,2'-bipyridine derivatives (4-Me-bpy-St-OH, 4-Ph-bpy-St-OH). The solution chemical behavior of the ligands and the complexes was explored by UV-visible spectrophotometry and 1H NMR spectroscopy. The ligands and their Re(I) complexes are neutral at pH = 7.40; this contributes to their highly lipophilic character (log D7.40 > +3). The Ru(II) and Rh(III) half-sandwich complexes are much more hydrophilic, and this property is greatly affected by the actual chloride ion content of the medium. The half-sandwich Ru and Rh complexes are highly stable in 30% (v/v) DMSO/water (<5% dissociation at pH = 7.40); this is further increased in water. The Rh(III)(η5-C5Me5) complexes were characterized by higher water/chloride exchange and pKa constants compared to their Ru(II)(η6-p-cymene) counterparts. The Re(I)(CO)3 complexes are also stable in solution over a wide pH range (2-12) without the release of the bidentate ligand; only the chlorido co-ligand can be replaced with OH- at higher pH values. A comprehensive discussion of the binding affinity of the half-sandwich Ru(II) and Rh(III) complexes toward human serum albumin and calf-thymus DNA is also provided. The Ru(II)(η6-p-cymene) complexes interact with human serum albumin via intermolecular forces, while for the Rh(III)(η5-C5Me5) complexes the coordinative binding mode is suggested as well. They are also able to interact with calf-thymus DNA, most likely via the coordination of the guanine nitrogen. The Ru(II)(η6-p-cymene) complexes were found to be the most promising among the tested compounds as they exhibited moderate-to-strong cytotoxic activity (IC50 = 3-11 μM) in LNCaP as well as in PC3 prostate cells in an androgen receptor-independent manner. They were also significantly cytotoxic in breast and colon adenocarcinoma cancer cell lines and showed good selectivity for cancer cells.
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Affiliation(s)
- Tamás Pivarcsik
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary.
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary
| | - Márton A Kiss
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary
| | - Uroš Rapuš
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Jakob Kljun
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Gabriella Spengler
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary.
- Department of Medical Microbiology, Albert Szent-Györgyi Health Center and Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
| | - Éva Frank
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Éva A Enyedy
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary.
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7-8., H-6720 Szeged, Hungary
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Pivarcsik T, Dömötör O, Mészáros JP, May NV, Spengler G, Csuvik O, Szatmári I, Enyedy ÉA. 8-Hydroxyquinoline-Amino Acid Hybrids and Their Half-Sandwich Rh and Ru Complexes: Synthesis, Anticancer Activities, Solution Chemistry and Interaction with Biomolecules. Int J Mol Sci 2021; 22:ijms222011281. [PMID: 34681939 PMCID: PMC8570331 DOI: 10.3390/ijms222011281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/10/2021] [Accepted: 10/14/2021] [Indexed: 12/26/2022] Open
Abstract
Solution chemical properties of two novel 8-hydroxyquinoline-D-proline and homo-proline hybrids were investigated along with their complex formation with [Rh(η5-C5Me5)(H2O)3]2+ and [Ru(η6-p-cymene)(H2O)3]2+ ions by pH-potentiometry, UV-visible spectrophotometry and 1H NMR spectroscopy. Due to the zwitterionic structure of the ligands, they possess excellent water solubility as well as their complexes. The complexes exhibit high solution stability in a wide pH range; no significant dissociation occurs at physiological pH. The hybrids and their Rh(η5-C5Me5) complexes displayed enhanced cytotoxicity in human colon adenocarcinoma cell lines and exhibited multidrug resistance selectivity. In addition, the Rh(η5-C5Me5) complexes showed increased selectivity to the chemosensitive cancer cells over the normal cells; meanwhile, the Ru(η6-p-cymene) complexes were inactive, most likely due to arene loss. Interaction of the complexes with human serum albumin (HSA) and calf-thymus DNA (ct-DNA) was investigated by capillary electrophoresis, fluorometry and circular dichroism. The complexes are able to bind strongly to HSA and ct-DNA, but DNA cleavage was not observed. Changing the five-membered proline ring to the six-membered homoproline resulted in increased lipophilicity and cytotoxicity of the Rh(η5-C5Me5) complexes while changing the configuration (L vs. D) rather has an impact on HSA or ct-DNA binding.
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Affiliation(s)
- Tamás Pivarcsik
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary; (T.P.); (O.D.); (J.P.M.); (G.S.)
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary
| | - Orsolya Dömötör
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary; (T.P.); (O.D.); (J.P.M.); (G.S.)
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary
| | - János P. Mészáros
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary; (T.P.); (O.D.); (J.P.M.); (G.S.)
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary
| | - Nóra V. May
- Centre for Structural Science, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary;
| | - Gabriella Spengler
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary; (T.P.); (O.D.); (J.P.M.); (G.S.)
- Department of Medical Microbiology, Albert Szent-Györgyi Health Center and Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis U. 6, H-6725 Szeged, Hungary
| | - Oszkár Csuvik
- Institute of Pharmaceutical Chemistry and Stereochemistry Research Group of Hungarian Academy of Sciences, University of Szeged, Eötvös U. 6, H-6720 Szeged, Hungary; (O.C.); (I.S.)
| | - István Szatmári
- Institute of Pharmaceutical Chemistry and Stereochemistry Research Group of Hungarian Academy of Sciences, University of Szeged, Eötvös U. 6, H-6720 Szeged, Hungary; (O.C.); (I.S.)
| | - Éva A. Enyedy
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary; (T.P.); (O.D.); (J.P.M.); (G.S.)
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm Tér 7, H-6720 Szeged, Hungary
- Correspondence:
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Sahu G, Banerjee A, Samanta R, Mohanty M, Lima S, Tiekink ERT, Dinda R. Water-Soluble Dioxidovanadium(V) Complexes of Aroylhydrazones: DNA/BSA Interactions, Hydrophobicity, and Cell-Selective Anticancer Potential. Inorg Chem 2021; 60:15291-15309. [PMID: 34597028 DOI: 10.1021/acs.inorgchem.1c01899] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Five new anionic aqueous dioxidovanadium(V) complexes, [{VO2L1,2}A(H2O)n]α (1-5), with the aroylhydrazone ligands pyridine-4-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)hydrazide (H2L1) and furan-2-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)hydrazide (H2L2) incorporating different alkali metals (A = Na+, K+, Cs+) as countercation were synthesized and characterized by various physicochemical techniques. The solution-phase stabilities of 1-5 were determined by time-dependent NMR and UV-vis, and also the octanol/water partition coefficients were obtained by spectroscopic techniques. X-ray crystallography of 2-4 confirmed the presence of vanadium(V) centers coordinated by two cis-oxido-O atoms and the O, N, and O atoms of a dianionic tridentate ligand. To evaluate the biological behavior, all complexes were screened for their DNA/protein binding propensity through spectroscopic experiments. Finally, a cytotoxicity study of 1-5 was performed against colon (HT-29), breast (MCF-7), and cervical (HeLa) cancer cell lines and a noncancerous NIH-3T3 cell line. The cytotoxicity was cell-selective, being more active against HT-29 than against other cells. In addition, the role of hydrophobicity in the cytotoxicity was explained in that an optimal hydrophobicity is essential for high cytotoxicity. Moreover, the results of wound-healing assays indicated antimigration in case of HT-29 cells. Remarkably, 1 with an IC50 value of 5.42 ± 0.15 μM showed greater activity in comparison to cisplatin against the HT-29 cell line.
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Affiliation(s)
- Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Atanu Banerjee
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Rajib Samanta
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Monalisa Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Sudhir Lima
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Edward R T Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, 5 Jalan Universiti, Sunway University, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
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Klaimanee E, Nhukeaw T, Saithong S, Ratanaphan A, Phongpaichit S, Tantirungrotechai Y, Leesakul N. Half-sandwich ruthenium (II) p-cymene complexes based on organophosphorus ligands: Structure determination, computational investigation, in vitro antiproliferative effect in breast cancer cells and antimicrobial activity. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Abstract
Platinum-based anticancer drugs are most likely the most successful group of bioinorganic compounds. Their apparent disadvantages have led to the development of anticancer compounds of other noble metals, resulting in several ruthenium-based drugs which have entered clinical trials on oncological patients. Besides ruthenium, numerous rhodium complexes have been recently reported as highly potent antiproliferative agents against various human cancer cells, making them potential alternatives to Pt- and Ru-based metallodrugs. In this review, half-sandwich Rh(III) complexes are overviewed. Many representatives show higher in vitro potency than and different mechanisms of action (MoA) from the conventional anticancer metallodrugs (cisplatin in most cases) or clinically studied Ru drug candidates. Furthermore, some of the reviewed Rh(III) arenyl complexes are also anticancer in vivo. Pioneer anticancer organorhodium compounds as well as the recent advances in the field are discussed properly, and adequate attention is paid to their anticancer activity, solution behaviour and various processes connected with their MoA. In summary, this work summarizes the types of compounds and the most important biological results obtained in the field of anticancer half-sandwich Rh complexes.
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Hashemi S, Karami K, Saberi Dehkordi Z, Momtazi-Borojeni AA, Esmaeili SA. Novel P,C-orthopalladated complexes containing histidine and phenylalanine amino acids: synthesis, DNA and BSA interactions, in vitro antitumoral activity and molecular docking approach. J Biomol Struct Dyn 2020; 40:5000-5015. [PMID: 33356950 DOI: 10.1080/07391102.2020.1865202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Novel [Pd(o-CH2C6H4P(o-tolyl)2)(histidine)] (1) and [Pd(o-CH2C6H4P(o tolyl)2)(phenylalanine)] (2) P,C-orthopalladated complexes have been prepared and characterized by elemental analysis, IR and NMR spectroscopy. To study the stability of the compounds in biological media, the complexes were incubated in Tris buffer during 10 days. The absorbance of the compounds remained constant, which confirmed the stability of the complexes in biological media. UV-Vis absorption spectrophotometry, fluorescence spectroscopy and viscosity studies were used to investigate the binding of the complexes with native calf thymus DNA (CT-DNA). These methods along with competitive binding of methylene blue (MB) DNA show that the complexes interact with DNA via groove mode. The UV-Vis absorption spectrophotometry of BSA with complexes has shown an α-helix perturbation induced by a particular interaction between the metal complexes and BSA. In addition, the fluorescence quenching mechanism of BSA with the complexes is a static process, according to the fluorescence spectrometry of bovine serum albumin (BSA). The experimental results of site competitive replacement with specific site markers are clear indications that the complexes bind to site I of BSA. Furthermore, both complexes showed significant selective cytotoxic activity against melanoma B16F0 and colon carcinoma C26 cancer cells as well as normal fibroblast NIH cell line. Ultimately, the binding of Pd(II) complexes to DNA and BSA was verified by molecular docking experiment.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sara Hashemi
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Kazem Karami
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Zeinab Saberi Dehkordi
- Department of Chemistry, Faculty of Science, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Amir Abbas Momtazi-Borojeni
- Nanotechnology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology, Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Alireza Esmaeili
- Department of Immunology and Allergy, Student Research Committee, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Vekariya PA, Karia PS, Bhatt BS, Patel MN. Spectroscopic and electrochemical study for evaluating DNA interaction activity of 4‐(3‐halophenyl)‐6‐(pyridin‐2‐yl)pyrimidin‐2‐amine based piano stool Cp* Rh (III) and Ir (III) complexes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5152] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | - Parag S. Karia
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Bhupesh S. Bhatt
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
| | - Mohan N. Patel
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388 120 Gujarat India
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A novel silver (I) complex of α-keto phosphorus ylide: Synthesis, characterization, crystal structure, biomolecular interaction studies, molecular docking and in vitro cytotoxic evaluation. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Karami K, Rahimi M, Zakariazadeh M, Buyukgungor O, Amirghofran Z. New phosphorus ylide palladacyclic: Synthesis, characterization, X-Ray crystal structure, biomolecular interaction studies, molecular docking and in vitro cytotoxicity evaluations. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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10
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Li J, Guo L, Tian Z, Zhang S, Xu Z, Han Y, Li R, Li Y, Liu Z. Half-Sandwich Iridium and Ruthenium Complexes: Effective Tracking in Cells and Anticancer Studies. Inorg Chem 2018; 57:13552-13563. [DOI: 10.1021/acs.inorgchem.8b02161] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- JuanJuan Li
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Lihua Guo
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Zhenzhen Tian
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Shumiao Zhang
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Zhishan Xu
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
- Department of Chemistry and Chemical Engineering, Shandong Normal University, Jinan 250014, People’s Republic of China
| | - Yali Han
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Ruixia Li
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yan Li
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Zhe Liu
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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Effect of Substituents on the Biological Activities of Piano Stool η5-Cyclopentadienyl Rh(III) and Ir(III) Complexes. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0957-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Synthesis, spectroscopic characterization, crystal structure determination and DFT calculations of [Au(Me2phen)Br2][AuBr2]. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0389-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Comparative equilibrium and structural studies of new pentamethylcyclopentadienyl rhodium complexes bearing (O,N) donor bidentate ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.06.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Liang H, Hao T, Yin C, Yang X, Fu H, Zheng X, Li R, Xiao D, Chen H. Cyclometalated Rhodium(III) Complexes Based on Substituted 2-Phenylpyridine Ligands: Synthesis, Structures, Photophysics, Electrochemistry, and DNA-Binding Properties. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700700] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Haoran Liang
- College of Chemical Engineering; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Taotao Hao
- College of Chemistry; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Changzhen Yin
- College of Chemistry; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Xi Yang
- Guizhou Central Laboratory of Geology and Mineral Resources; Guiyang P. R. China
| | - Haiyan Fu
- College of Chemistry; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Xueli Zheng
- College of Chemistry; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Ruixiang Li
- College of Chemistry; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Dan Xiao
- College of Chemical Engineering; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
| | - Hua Chen
- College of Chemistry; Sichuan University; No. 29 Wangjiang Road Chengdu P. R. China
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15
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A mononuclear Ru(II) complex with meloxicam: DNA- and BSA-binding, molecular modeling and anticancer activity against human carcinoma cell lines. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.04.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Lucas SJ, Lord RM, Basri AM, Allison SJ, Phillips RM, Blacker AJ, McGowan PC. Increasing anti-cancer activity with longer tether lengths of group 9 Cp* complexes. Dalton Trans 2016; 45:6812-5. [PMID: 26924272 DOI: 10.1039/c6dt00186f] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Here in, we report the cytotoxicity of both rhodium and iridium functionalised Cp* analogues of the [Cp*MCl2]2 dimers. The functionalised dimers contain a hydroxy tethered arm of differing carbon length. These show promising IC50 values when tested against HT-29, A2780 and cisplatin-resistant A2780cis human cancer cell lines, with the cytotoxicity improving proportionally with an increase in carbon tether length of the Cp* ring. The most promising results are seen for the 14-carbon Cp* tethered rhodium () and iridium () complexes, which show up to a 24-fold increase in IC50 compared to the unfunctionalised [Cp*MCl2]2 dimer. All complexes were potent inhibitors of purified thioredoxin reductase suggesting that disruption of cellular anti-oxidant function is one potential mechanism of action.
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Affiliation(s)
- Stephanie J Lucas
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Rianne M Lord
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Aida M Basri
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Simon J Allison
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Roger M Phillips
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - A John Blacker
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Patrick C McGowan
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
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17
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Zhong HJ, Wang W, Kang TS, Yan H, Yang Y, Xu L, Wang Y, Ma DL, Leung CH. A Rhodium(III) Complex as an Inhibitor of Neural Precursor Cell Expressed, Developmentally Down-Regulated 8-Activating Enzyme with in Vivo Activity against Inflammatory Bowel Disease. J Med Chem 2016; 60:497-503. [PMID: 27976900 DOI: 10.1021/acs.jmedchem.6b00250] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report herein the identification of the rhodium(III) complex [Rh(phq)2(MOPIP)]+ (1) as a potent and selective ATP-competitive neural precursor cell expressed, developmentally down-regulated 8 (NEDD8)-activating enzyme (NAE) inhibitor. Structure-activity relationship analysis indicated that the overall organometallic design of complex 1 was important for anti-inflammatory activity. Complex 1 showed promising anti-inflammatory activity in vivo for the potential treatment of inflammatory bowel disease.
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Affiliation(s)
- Hai-Jing Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Taipa, Macao P. R China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University , T1303, Cha Chi-Ming Science Tower, Kowloon Tong, Hong Kong, P. R. China
| | - Tian-Shu Kang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Taipa, Macao P. R China
| | - Hui Yan
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy , Guangzhou 510632, China
| | - Yali Yang
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy , Guangzhou 510632, China
| | - Lipeng Xu
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy , Guangzhou 510632, China
| | - Yuqiang Wang
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy , Guangzhou 510632, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University , T1303, Cha Chi-Ming Science Tower, Kowloon Tong, Hong Kong, P. R. China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Taipa, Macao P. R China
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18
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Koizumi TA, Ohkura Y, Tsuda E. Synthesis, structure, and electrochemical behavior of a new dinuclear Rh(III) complex bridged by a bpp− ligand (bpp−= 3,5-bis(2-pyridyl)pyrazolate). INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.02.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Wang KR, Qian F, Sun Q, Ma CL, Rong RX, Cao ZR, Wang XM, Li XL. Substituent Effects on Cytotoxic Activity, Spectroscopic Property, and DNA Binding Property of Naphthalimide Derivatives. Chem Biol Drug Des 2016; 87:664-72. [DOI: 10.1111/cbdd.12698] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 10/08/2015] [Accepted: 11/24/2015] [Indexed: 01/06/2023]
Affiliation(s)
- Ke-Rang Wang
- Key Laboratory of Chemical Biology of Hebei Province; College of Chemistry and Environmental Science; Hebei University; Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education; Baoding 071002 China
| | - Feng Qian
- Key Laboratory of Chemical Biology of Hebei Province; College of Chemistry and Environmental Science; Hebei University; Baoding 071002 China
| | - Qian Sun
- Key Laboratory of Chemical Biology of Hebei Province; College of Chemistry and Environmental Science; Hebei University; Baoding 071002 China
| | - Cui-Lan Ma
- Key Laboratory of Chemical Biology of Hebei Province; College of Chemistry and Environmental Science; Hebei University; Baoding 071002 China
| | - Rui-Xue Rong
- Department of Immunology; School of Basic Medical Science; Hebei University; Baoding China
| | - Zhi-Ran Cao
- Department of Immunology; School of Basic Medical Science; Hebei University; Baoding China
| | - Xiao-Man Wang
- Department of Immunology; School of Basic Medical Science; Hebei University; Baoding China
| | - Xiao-Liu Li
- Key Laboratory of Chemical Biology of Hebei Province; College of Chemistry and Environmental Science; Hebei University; Baoding 071002 China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education; Baoding 071002 China
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20
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Esteghamat-Panah R, Farrokhpour H, Hadadzadeh H, Abyar F, Rudbari HA. An experimental and quantum chemical study on the non-covalent interactions of a cyclometallated Rh(iii) complex with DNA and BSA. RSC Adv 2016. [DOI: 10.1039/c5ra24540k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The interaction of a new cyclometallated Rh(iii) complex with DNA and BSA was investigated. The three-layer ONIOM method was employed to calculate the interaction energy between DNA and the complex.
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Affiliation(s)
| | - Hossein Farrokhpour
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Hassan Hadadzadeh
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Fatemeh Abyar
- Department of Engineering
- Ardakan University
- Ardakan 89518-95491
- Iran
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21
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Subarkhan MKM, Ramesh R. Ruthenium(ii) arene complexes containing benzhydrazone ligands: synthesis, structure and antiproliferative activity. Inorg Chem Front 2016. [DOI: 10.1039/c6qi00197a] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Six new Ru(ii) arene anthracene benzhydrazone complexes have been synthesized and show excellent cytotoxicity against human cancer cell lines. The results of apoptosis assays demonstrated that complexes4and6are able to induce apoptosis in human cancer cells.
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Affiliation(s)
| | - Rengan Ramesh
- Centre for Organometallic Chemistry
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli 620 024
- India
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22
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Khamrang T, Kartikeyan R, Velusamy M, Rajendiran V, Dhivya R, Perumalsamy B, Akbarsha MA, Palaniandavar M. Synthesis, structures, and DNA and protein binding of ruthenium(ii)-p-cymene complexes of substituted pyridylimidazo[1,5-a]pyridine: enhanced cytotoxicity of complexes of ligands appended with a carbazole moiety. RSC Adv 2016. [DOI: 10.1039/c6ra23663d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The cytotoxicity of ruthenium-arene complexes appended with carbazole moiety correlates with their DNA binding ability.
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Affiliation(s)
- Themmila Khamrang
- Department of Chemistry
- North Eastern Hill University
- Shillong 793022
- India
| | - Radhakrishnan Kartikeyan
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu
- Thiruvarur 610101
- India
| | - Marappan Velusamy
- Department of Chemistry
- North Eastern Hill University
- Shillong 793022
- India
| | - Venugopal Rajendiran
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu
- Thiruvarur 610101
- India
| | - Rajakumar Dhivya
- Mahatma Gandhi-Doerenkamp Center for Alternatives to Use of Animals in Life Science Education
- Bharathidasan University
- Tiruchirappalli 620024
- India
| | - Balaji Perumalsamy
- Mahatma Gandhi-Doerenkamp Center for Alternatives to Use of Animals in Life Science Education
- Bharathidasan University
- Tiruchirappalli 620024
- India
| | - Mohammad Abdulkadher Akbarsha
- Mahatma Gandhi-Doerenkamp Center for Alternatives to Use of Animals in Life Science Education
- Bharathidasan University
- Tiruchirappalli 620024
- India
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23
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Enyedy ÉA, Mészáros JP, Dömötör O, Hackl CM, Roller A, Keppler BK, Kandioller W. Comparative solution equilibrium studies on pentamethylcyclopentadienyl rhodium complexes of 2,2ʹ-bipyridine and ethylenediamine and their interaction with human serum albumin. J Inorg Biochem 2015; 152:93-103. [DOI: 10.1016/j.jinorgbio.2015.08.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 12/21/2022]
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24
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Mollin S, Riedel R, Harms K, Meggers E. Octahedral rhodium(III) complexes as kinase inhibitors: Control of the relative stereochemistry with acyclic tridentate ligands. J Inorg Biochem 2015; 148:11-21. [DOI: 10.1016/j.jinorgbio.2015.01.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 01/13/2015] [Accepted: 01/13/2015] [Indexed: 01/29/2023]
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25
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Ma DL, Liu LJ, Leung KH, Chen YT, Zhong HJ, Chan DSH, Wang HMD, Leung CH. Antagonizing STAT3 dimerization with a rhodium(III) complex. Angew Chem Int Ed Engl 2014; 53:9178-82. [PMID: 24889897 DOI: 10.1002/anie.201404686] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 12/22/2022]
Abstract
Kinetically inert metal complexes have arisen as promising alternatives to existing platinum and ruthenium chemotherapeutics. Reported herein, to our knowledge, is the first example of a substitutionally inert, Group 9 organometallic compound as a direct inhibitor of signal transducer and activator of transcription 3 (STAT3) dimerization. From a series of cyclometalated rhodium(III) and iridium(III) complexes, a rhodium(III) complex emerged as a potent inhibitor of STAT3 that targeted the SH2 domain and inhibited STAT3 phosphorylation and dimerization. Significantly, the complex exhibited potent anti-tumor activities in an in vivo mouse xenograft model of melanoma. This study demonstrates that rhodium complexes may be developed as effective STAT3 inhibitors with potent anti-tumor activity.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong (China).
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26
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Ma DL, Liu LJ, Leung KH, Chen YT, Zhong HJ, Chan DSH, Wang HMD, Leung CH. Antagonizing STAT3 Dimerization with a Rhodium(III) Complex. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404686] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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27
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Gupta G, Mahesh Kumar J, Garci A, Rangaraj N, Nagesh N, Therrien B. Anticancer Activity of Half-Sandwich RhIIIand IrIIIMetalla-Prisms Containing Lipophilic Side Chains. Chempluschem 2014; 79:610-618. [DOI: 10.1002/cplu.201300425] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 02/07/2014] [Indexed: 12/30/2022]
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28
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Almodares Z, Lucas SJ, Crossley BD, Basri AM, Pask CM, Hebden AJ, Phillips RM, McGowan PC. Rhodium, Iridium, and Ruthenium Half-Sandwich Picolinamide Complexes as Anticancer Agents. Inorg Chem 2014; 53:727-36. [DOI: 10.1021/ic401529u] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zahra Almodares
- School
of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Stephanie J. Lucas
- School
of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | | | - Aida M. Basri
- School
of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | | | - Andrew J. Hebden
- School
of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Roger M. Phillips
- The
Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Patrick C. McGowan
- School
of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
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29
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Ganeshpandian M, Loganathan R, Suresh E, Riyasdeen A, Akbarsha MA, Palaniandavar M. New ruthenium(ii) arene complexes of anthracenyl-appended diazacycloalkanes: effect of ligand intercalation and hydrophobicity on DNA and protein binding and cleavage and cytotoxicity. Dalton Trans 2014; 43:1203-19. [DOI: 10.1039/c3dt51641e] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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30
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Leung CH, Zhong HJ, Chan DSH, Ma DL. Bioactive iridium and rhodium complexes as therapeutic agents. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.01.034] [Citation(s) in RCA: 234] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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31
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Abstract
The discovery of cisplatin as a therapeutic agent stimulated a new era in the application of transition metal complexes for therapeutic design. Here we describe recent results on a variety of transition metal complexes targeted to DNA to illustrate many of the issues involved in new therapeutic design. We describe first structural studies of complexes bound covalently and non-covalently to DNA to identify potential lesions within the cell. We then review the biological fates of these complexes, illustrating the key elements in obtaining potent activity, the importance of uptake and subcellular localization of the complexes, as well as the techniques used to delineate these characteristics. Genomic DNA provides a challenging but valuable target for new transition metal-based therapeutics.
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Affiliation(s)
| | - Jacqueline K. Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125, USA. Fax: 626-577-4976; Tel: 626-395-6075;
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32
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Neutral and cationic multinuclear half-sandwich rhodium and iridium complexes coordinated to poly(propyleneimine) dendritic scaffolds: Synthesis and cytotoxicity. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.01.009] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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33
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Geldmacher Y, Oleszak M, Sheldrick WS. Rhodium(III) and iridium(III) complexes as anticancer agents. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.06.046] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Mollin S, Blanck S, Harms K, Meggers E. Cyclometalated phenylquinoline rhodium complexes as protein kinase inhibitors. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.04.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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35
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Abstract
A cyclometallated rhodium(III) complex [Rh(ppy)2(dppz)]+ (1) (where ppy = 2-phenylpyridine and dppz = dipyrido[3,2-a:2′,3′-c]phenazine dipyridophenazine) has been prepared and identified as an inhibitor of NEDD8-activating enzyme (NAE). The complex inhibited NAE activity in cell-free and cell-based assays, and suppressed the CRL-regulated substrate degradation and NF-κB activation in human cancer cells with potency comparable to known NAE inhibitor MLN4924. Molecular modeling analysis suggested that the overall binding mode of 1 within the binding pocket of the APPBP1/UBA3 heterodimer resembled that for MLN4924. Complex 1 is the first metal complex reported to suppress the NEDDylation pathway via inhibition of the NEDD8-activating enzyme.
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Affiliation(s)
- Hai-Jing Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Hui Yang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Daniel Shiu-Hin Chan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Hui-Min Wang
- Department of Fragrance and Cosmetic Science, Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- * E-mail:
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36
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Hartinger CG, Metzler-Nolte N, Dyson PJ. Challenges and Opportunities in the Development of Organometallic Anticancer Drugs. Organometallics 2012. [DOI: 10.1021/om300373t] [Citation(s) in RCA: 470] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Christian G. Hartinger
- School of Chemical Sciences, The University of Auckland, Private
Bag 92019, Auckland 1142, New Zealand
| | - Nils Metzler-Nolte
- Inorganic Chemistry I-Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitaetsstrasse, 44801
Bochum, Germany
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL−BCH, CH-1015 Lausanne,
Switzerland
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37
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Nazif MA, Rubbiani R, Alborzinia H, Kitanovic I, Wölfl S, Ott I, Sheldrick WS. Cytotoxicity and cellular impact of dinuclear organoiridium DNA intercalators and nucleases with long rigid bridging ligands. Dalton Trans 2012; 41:5587-98. [PMID: 22415580 DOI: 10.1039/c2dt00011c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The DNA binding modes and cleavage properties of novel dinuclear Ir(III) polypyridyl (pp) complexes [{(η(5)-C(5)Me(5))Ir(pp)}(2)(μ-B)](CF(3)SO(3))(4) depend on the lengths of their rigid bridging dipyridinyl ligands B. Mono-intercalation and strong DNA cleavage properties were observed for the dipyrido[2,3-a:2',3'-c]phenazine (dppz) complexes 1 (B = 4-[(E)-2-(4-pyridinyl)ethenyl]pyridine) and 3 (B = 4-(2-pyridin-4-ylethynyl)pyridine), whose intracationic Ir···Ir' distances are about 13.1 and 13.3 Å, respectively. In contrast, UV/Vis and CD spectra were in accordance with a stable intertwined bis-intercalation mode for pairs of cations of 5 (B = 1,4-di(2-pyridin-4-ylethynyl)benzene), whose much longer Ir···Ir' distance of 20.6 Å allows a stack of five aromatic chromophores to be sandwiched between its effectively parallel dppz ligands. Whereas both 1 and 3 cleaved DNA in the dark, complex 5 exhibited only photoinduced nuclease activity. A significantly higher antiproliferative activity towards MCF-7 breast carcinoma cells was observed for the nucleases 1 and 3, whose IC(50) values of 0.61 and 0.49 were much lower than that of 2.2 μM for bis-intercalator 5. Values of 3.8 μM, only slightly higher than that of 5, were recorded for the 5,6-dimethylphenanthroline complexes 4 and 6, whose bridging ligands are identical to those of 3 and 5, respectively. Marked antileukemic activity (IC(50) = 6-7 μM) associated with increased levels of reactive oxygen species and apoptosis induction was recorded for both 3 and 5 towards Jurkat cells at concentrations of 5 μM and above. Online studies with a sensor chip system indicated that 5 μM solutions of these complexes invoke a rapid and massive reduction in MCF-7 cell respiration.
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Affiliation(s)
- Mhd Ali Nazif
- Fakultät für Chemie und Biochemie, Ruhr-Universität-Bochum, Bochum, Germany
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38
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Synthesis and structures of binuclear copper(II) complexes bridged by N-(5-chloro-2-hydroxyphenyl)-N′-[3-(dimethylamino)propyl]oxalamide ligand: DNA-binding properties and cytotoxic activities. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2011.11.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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39
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Geldmacher Y, Splith K, Kitanovic I, Alborzinia H, Can S, Rubbiani R, Nazif MA, Wefelmeier P, Prokop A, Ott I, Wölfl S, Neundorf I, Sheldrick WS. Cellular impact and selectivity of half-sandwich organorhodium(III) anticancer complexes and their organoiridium(III) and trichloridorhodium(III) counterparts. J Biol Inorg Chem 2012; 17:631-46. [DOI: 10.1007/s00775-012-0883-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 02/03/2012] [Indexed: 01/09/2023]
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40
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Dieckmann S, Riedel R, Harms K, Meggers E. Pyridocarbazole-Rhodium(III) Complexes as Protein Kinase Inhibitors. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101175] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Kasper C, Alborzinia H, Can S, Kitanovic I, Meyer A, Geldmacher Y, Oleszak M, Ott I, Wölfl S, Sheldrick WS. Synthesis and cellular impact of diene-ruthenium(II) complexes: a new class of organoruthenium anticancer agents. J Inorg Biochem 2011; 106:126-33. [PMID: 22115828 DOI: 10.1016/j.jinorgbio.2011.08.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 07/30/2011] [Accepted: 08/19/2011] [Indexed: 01/15/2023]
Abstract
The cytostatic properties and cellular effects of novel diene-ruthenium(II) complexes of the types OC-6-13-[RuCl(2)(pp)(cod)] 1-5 (pp=2,2'-bipyridyl (bpy), phen=1,10-phenanthroline (phen), 5,6-dimethylphenanthroline (5,6-Me2phen), dipyrido[3,2-d:2',3'-f]quinoxaline (dpq), ethylenediamine (en)) and OC-6-24-[RuCl{(Me(2)N)(2)CS}(pp)(cod)](CF(3)SO(3)) 6-8 (pp=phen, 5,6-Me(2)phen, dpq) have been studied for the human cancer cell lines MCF-7 and HT-29 and for Jurkat leukemia cells. CD spectra indicate that 7 causes a massive distortion of the CT DNA B double helix toward the A form. Whereas the neutral complexes 1, 2 and 5 exhibit only modest antiproliferative activity toward MCF-7 and HT-29 cells, the monocationic complexes are significantly more active, in particular the DNA-distorting complex 7 with its IC(50) values of 0.73 and 0.42 μM, respectively. As established by online monitoring with a cell-based sensor chip, this potent 5,6-Me(2)phen complex invokes dose-dependent decreases in MCF-7 cellular respiration and extracellular acidification rates and causes a time-delayed decrease in the impedance of the cell layers, that can be ascribed to cell death. Treatment of Jurkat cells with 7 leads to high concentrations of reactive oxygen species and the induction of apoptosis. The pronounced dose-dependent inhibition of oxygen consumption by isolated mice mitochondria indicates the involvement of an intrinsic mitochondrial pathway in the programmed cell death process.
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Affiliation(s)
- Christine Kasper
- Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Bochum, Germany
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42
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Highly cytotoxic substitutionally inert rhodium(III) tris(chelate) complexes: DNA binding modes and biological impact on human cancer cells. J Inorg Biochem 2011; 105:991-9. [PMID: 21569751 DOI: 10.1016/j.jinorgbio.2011.04.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Revised: 03/14/2011] [Accepted: 04/13/2011] [Indexed: 11/24/2022]
Abstract
The antiproliferative properties and cellular impact of novel substitutionally inert rhodium(III) complexes of the types [Rh{(CH₃)₂ NCS₂}₂(pp)]Cl 3-5 (pp=5,6-Me₂phen, dpq, dppz) and OC-6-23-[Rh(2-S-py)₂(pp)]Cl 6 and 7 (2-S-py=pyridine-2-thiolate; pp=dpq, dppz) have been investigated for the adherent human cancer cell lines MCF-7 and HT-29 and for non-adherent Jurkat cells. Whereas CD and viscosity measurements indicate that the polypyridyl ligands of 4 and 5 intercalate into CT DNA, this is not the case for the analogous pyridine-2-thiolate complexes 6 and 7. Complexes 3-7 all exhibit a high antiproliferative activity towards MCF-7 and HT-29 cells, with IC(50) values in the range 0.055-0.285 μM. As established by online monitoring with a cell-based sensor chip, the highly cytostatic complex 6 (IC(50)=0.059 and 0.078 μM) invokes an immediate concentration-dependent reduction of MCF-7 cell respiration and a time-delayed decrease in cellular impedance, which can be ascribed to the induction of cell death. Annexin V/PI assays demonstrated that 6 also has a pronounced antiproliferative activity towards Jurkat cells and that it invokes extensive apoptosis and high concentrations of reactive oxygen species in these leukemia cells. The observation of a dose-dependent inhibition of the oxygen consumption of isolated mice mitochondria indicates the involvement of an intrinsic mitochondrial pathway in this process.
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