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Oliveira LS, Rosa LB, Affonso DD, Santos IA, Da Silva JC, Rodrigues GC, Harris M, Jardim ACG, Nakahata DH, Sabino JR, de Carvalho JE, Miguel DC, Ruiz ALTG, Abbehausen C. Novel Bidentate Amine Ligand and the Interplay between Pd(II) and Pt(II) Coordination and Biological Activity. Chembiochem 2024; 25:e202300696. [PMID: 38146865 DOI: 10.1002/cbic.202300696] [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: 10/11/2023] [Revised: 12/21/2023] [Accepted: 12/24/2023] [Indexed: 12/27/2023]
Abstract
Pt(II) and Pd(II) coordinating N-donor ligands have been extensively studied as anticancer agents after the success of cisplatin. In this work, a novel bidentate N-donor ligand, the N-[[4-(phenylmethoxy)phenyl]methyl]-2-pyridinemethanamine, was designed to explore the antiparasitic, antiviral and antitumor activity of its Pt(II) and Pd(II) complexes. Chemical and spectroscopic characterization confirm the formation of [MLCl2 ] complexes, where M=Pt(II) and Pd(II). Single crystal X-ray diffraction confirmed a square-planar geometry for the Pd(II) complex. Spectroscopic characterization of the Pt(II) complex suggests a similar structure. 1 H NMR, 195 Pt NMR and HR-ESI-MS(+) analysis of DMSO solution of complexes indicated that both compounds exchange the chloride trans to the pyridine for a solvent molecule with different reaction rates. The ligand and the two complexes were tested for in vitro antitumoral, antileishmanial, and antiviral activity. The Pt(II) complex resulted in a GI50 of 10.5 μM against the NCI/ADR-RES (multidrug-resistant ovarian carcinoma) cell line. The ligand and the Pd(II) complex showed good anti-SARS-CoV-2 activity with around 65 % reduction in viral replication at a concentration of 50 μM.
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Affiliation(s)
- Laiane S Oliveira
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
| | - Letícia B Rosa
- Institute of Biology, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Daniele D Affonso
- Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Igor A Santos
- Institute of Biomedical Sciences, Federal University of Uberlândia, João Naves de Ávila Avenue, 2121 -, Santa Mônica, Uberlândia, Minas Gerais, Brazil
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Woodhouse, Leeds, LS2 9JT, UK
| | - Jennyfer C Da Silva
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
| | - Gustavo C Rodrigues
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
| | - Mark Harris
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Woodhouse, Leeds, LS2 9JT, UK
| | - Ana Carolina G Jardim
- Institute of Biomedical Sciences, Federal University of Uberlândia, João Naves de Ávila Avenue, 2121 -, Santa Mônica, Uberlândia, Minas Gerais, Brazil
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, Cristóvão Colombo street, 2265 -, Jardim Nazareth. São José do Rio Preto, São Paulo, Brazil
| | - Douglas H Nakahata
- Institute of Chemistry, Federal University of Goiás, Esperança Avenue, Campus Samambaia., Goiânia, Goiás, Brazil
| | - José R Sabino
- Institute of Physics, Federal University of Goiás, Esperança Avenue, Campus Samambaia., Goiânia, Goiás, Brazil
| | - João E de Carvalho
- Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Danilo C Miguel
- Institute of Biology, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Ana Lucia T G Ruiz
- Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Camilla Abbehausen
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
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Komlyagina VI, Romashev NF, Besprozvannykh VK, Arakelyan J, Wu C, Chubarov AS, Bakaev IV, Soh YK, Abramov PA, Cheung KL, Kompan'kov NB, Ryadun AA, Babak MV, Gushchin AL. Effects of Bis(imino)acenaphthene (Bian)-Derived Ligands on the Cytotoxicity, DNA Interactions, and Redox Activity of Palladium(II) Bipyridine Complexes. Inorg Chem 2023. [PMID: 37418540 DOI: 10.1021/acs.inorgchem.3c01172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
A series of heteroleptic bipyridine Pd(II) complexes based on 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (dpp-Bian) or 1,2-bis[(2,4,6-trimethylphenyl)imino]acenaphthene (tmp-Bian) were prepared. All complexes were fully characterized by spectrochemical methods, and their crystal structures were confirmed by X-ray diffraction analysis. The 72 h stability of heteroleptic bipyridine Pd(II) complexes with Bian ligands under physiological conditions was investigated using 1H NMR spectroscopy. The anticancer activity of all complexes was assessed in a panel of cancer cell lines in comparison with uncoordinated ligands and clinically used drugs cisplatin and doxorubicin. The ability of the complexes to bind DNA was investigated using several methods, including EtBr replacement assay, density functional theory calculations, circular dichroism spectroscopy, DNA gel electrophoresis, and TUNEL assay. The electrochemical activity of all complexes and the uncoordinated ligands was studied using cyclic voltammetry, and reactive oxygen species production in cancer cells was investigated using confocal microscopy. Heteroleptic bipyridine PdII-Bian complexes were cytotoxic in a low micromolar concentration range and showed some selectivity toward cancer cells in comparison with noncancerous MRC-5 lung fibroblasts.
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Affiliation(s)
- Veronika I Komlyagina
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
- Novosibirsk State University, 1 Pirogov Street, Novosibirsk 630090, Russia
| | - Nikolai F Romashev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Victoria K Besprozvannykh
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, People's Republic of China
| | - Jemma Arakelyan
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, People's Republic of China
| | - Chengnan Wu
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, People's Republic of China
| | - Alexey S Chubarov
- Novosibirsk State University, 1 Pirogov Street, Novosibirsk 630090, Russia
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Ivan V Bakaev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Yee Kiat Soh
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, People's Republic of China
| | - Pavel A Abramov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634034, Russian Federation
| | - Kin Leung Cheung
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, People's Republic of China
- Shun Lee Catholic Secondary School, 7 Shun Chi St, Cha Liu Au, Hong Kong, People's Republic of China
| | - Nikolai B Kompan'kov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Aleksey A Ryadun
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Maria V Babak
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, People's Republic of China
| | - Artem L Gushchin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
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3
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Antiproliferative Activity and DNA Interaction Studies of a Series of N4,N4-Dimethylated Thiosemicarbazone Derivatives. Molecules 2023; 28:molecules28062778. [PMID: 36985750 PMCID: PMC10058200 DOI: 10.3390/molecules28062778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 03/22/2023] Open
Abstract
The exploitation of bioactive natural sources to obtain new anticancer agents with novel modes of action may represent an innovative and successful strategy in the field of medicinal chemistry. Many natural products and their chemical analogues have been proposed as starting molecules to synthesise compounds with increased biological potential. In this work, the design, synthesis, and characterisation of a new series of N4,N4-dimethylated thiosemicarbazone Cu(II), Ni(II), and Pt(II) complexes are reported and investigated for their in vitro toxicological profile against a leukaemia cell line (U937). The antiproliferative activity was studied by MTS assay to determine the GI50 value for each compound after 24 h of treatment, while the genotoxic potential was investigated to determine if the complexes could cause DNA damage. In addition, the interaction between the synthesised molecules and DNA was explored by means of spectroscopic techniques, showing that for Pt and Ni derivatives a single mode of action can be postulated, while the Cu analogue behaves differently.
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Serebryanskaya TV, Kinzhalov MA, Bakulev V, Alekseev G, Andreeva A, Gushchin PV, Protas AV, Smirnov AS, Panikorovskii TL, Lippmann P, Ott I, Verbilo CM, Zuraev AV, Bunev AS, Boyarskiy VP, Kasyanenko NA. Water soluble palladium(ii) and platinum(ii) acyclic diaminocarbene complexes: solution behavior, DNA binding, and antiproliferative activity. NEW J CHEM 2020. [DOI: 10.1039/d0nj00060d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Water soluble Pd(ii) and Pt(ii)–ADC species synthesized via the metal-mediated coupling of isocyanides and 1,2-diaminobenzene have demonstrated antitumor potential.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Taras L. Panikorovskii
- Saint Petersburg State University
- St. Petersburg
- Russia
- Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic
- Kola Science Centre
| | - Petra Lippmann
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- D-38106 Braunschweig
- Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- D-38106 Braunschweig
- Germany
| | - Cyril M. Verbilo
- Research Institute for Physical Chemical Problems
- Belarusian State University
- 220006 Minsk
- Belarus
| | - Alexander V. Zuraev
- Research Institute for Physical Chemical Problems
- Belarusian State University
- 220006 Minsk
- Belarus
| | - Alexander S. Bunev
- Medicinal Chemistry Center
- Togliatti State University
- 445020 Togliatti
- Russia
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Biological activity of Pt IV prodrugs triggered by riboflavin-mediated bioorthogonal photocatalysis. Sci Rep 2018; 8:17198. [PMID: 30464209 PMCID: PMC6249213 DOI: 10.1038/s41598-018-35655-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/08/2018] [Indexed: 12/12/2022] Open
Abstract
We have recently demonstrated that riboflavin (Rf) functions as unconventional bioorthogonal photocatalyst for the activation of PtIV prodrugs. In this study, we show how the combination of light and Rf with two PtIV prodrugs is a feasible strategy for light-mediated pancreatic cancer cell death induction. In Capan-1 cells, which have high tolerance against photodynamic therapy, Rf-mediated activation of the cisplatin and carboplatin prodrugs cis,cis,trans-[Pt(NH3)2(Cl)2(O2CCH2CH2CO2H)2] (1) and cis,cis,trans-[Pt(NH3)2(CBDCA)(O2CCH2CH2CO2H)2] (2, where CBDCA = cyclobutane dicarboxylate) resulted in pronounced reduction of the cell viability, including under hypoxia conditions. Such photoactivation mode occurs to a considerable extent intracellularly, as demonstrated for 1 by uptake and cell viability experiments. 195Pt NMR, DNA binding studies using circular dichroism, mass spectrometry and immunofluorescence microscopy were performed using the Rf-1 catalyst-substrate pair and indicated that cell death is associated with the efficient light-induced formation of cisplatin. Accordingly, Western blot analysis revealed signs of DNA damage and activation of cell death pathways through Rf-mediated photochemical activation. Phosphorylation of H2AX as indicator for DNA damage, was detected for Rf-1 in a strictly light-dependent fashion while in case of free cisplatin also in the dark. Photochemical induction of nuclear pH2AX foci by Rf-1 was confirmed in fluorescence microscopy again proving efficient light-induced cisplatin release from the prodrug system.
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Samper KG, Marker SC, Bayón P, MacMillan SN, Keresztes I, Palacios Ò, Wilson JJ. Reprint of “Anticancer activity of hydroxy- and sulfonamide-azobenzene platinum(II) complexes in cisplatin-resistant ovarian cancer cells”. J Inorg Biochem 2017; 177:335-343. [DOI: 10.1016/j.jinorgbio.2017.07.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/13/2017] [Accepted: 06/12/2017] [Indexed: 11/28/2022]
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7
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Lemmerhirt H, Behnisch S, Bodtke A, Lillig CH, Pazderova L, Kasparkova J, Brabec V, Bednarski PJ. Effects of cytotoxic cis- and trans-diammine monochlorido platinum(II) complexes on selenium-dependent redox enzymes and DNA. J Inorg Biochem 2017; 178:94-105. [PMID: 29125948 DOI: 10.1016/j.jinorgbio.2017.10.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 10/16/2017] [Accepted: 10/25/2017] [Indexed: 11/16/2022]
Abstract
Here we present the preparation of 14 pairs of cis- and trans-diammine monochlorido platinum(II) complexes, coordinated to heterocycles (i.e., imidazole, 2-methylimidazole and pyrazole) and linked to various acylhydrazones, which were designed as potential inhibitors of the selenium-dependent enzymes glutathione peroxidase 1 (GPx-1) and thioredoxin reductase 1 (TrxR-1). However, no inhibition of bovine GPx-1 and only weak inhibition of murine TrxR-1 was observed in in vitro assays. Nonetheless, the cis configured diammine monochlorido Pt(II) complexes exhibited cytotoxic and apoptotic properties on various human cancer cell lines, whereas the trans configured complexes generally showed weaker potency with a few exceptions. On the other hand, the trans complexes were generally more likely to lack cross-resistance to cisplatin than the cis analogues. Platinum was found bound to the nuclear DNA of cancer cells treated with representative Pt complexes, suggesting that DNA might be a possible target. Thus, detailed in vitro binding experiments with DNA were conducted. Interactions of the compounds with calf thymus DNA were investigated, including Pt binding kinetics, circular dichroism (CD) spectral changes, changes in DNA melting temperatures, unwinding of supercoiled plasmids and ethidium bromide displacement in DNA. The CD results indicate that the most active cis configured pyrazole-derived complex causes unique structural changes in the DNA compared to the other complexes as well as to those caused by cisplatin, suggesting a denaturation of the DNA structure. This may be important for the antiproliferative activity of this compound in the cancer cells.
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Affiliation(s)
- Heidi Lemmerhirt
- Institute of Pharmacy, Ernst-Moritz-Arndt University of Greifswald, 17487 Greifswald, Germany
| | - Steven Behnisch
- Institute of Pharmacy, Ernst-Moritz-Arndt University of Greifswald, 17487 Greifswald, Germany
| | - Anja Bodtke
- Institute of Pharmacy, Ernst-Moritz-Arndt University of Greifswald, 17487 Greifswald, Germany
| | - Christopher H Lillig
- Institute of Medical Biochemistry and Molecular Biology, Ernst-Moritz-Arndt University of Greifswald, 17475 Greifswald, Germany
| | - Lucia Pazderova
- Department of Biophysics, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic
| | - Jana Kasparkova
- Department of Biophysics, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic
| | - Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 61265 Brno, Czech Republic
| | - Patrick J Bednarski
- Institute of Pharmacy, Ernst-Moritz-Arndt University of Greifswald, 17487 Greifswald, Germany.
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Stouder CE, Warren KJ, Perdue OF, Stewart AL, Padgett CW, Amonette AJ, Saha A. Synthesis, characterization, computational study, and biological relevance of a family of isostructural, mononuclear Ln (Ln = Gd, Tb, Dy, Ho, Er) complexes containing pyridoxine, an essential ingredient of vitamin B6 enzyme. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Evolution of palladium(II) complexes as DNA intercalator and artificial metallonuclease. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-1942-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Samper KG, Marker SC, Bayón P, MacMillan SN, Keresztes I, Palacios Ò, Wilson JJ. Anticancer activity of hydroxy- and sulfonamide-azobenzene platinum(II) complexes in cisplatin-resistant ovarian cancer cells. J Inorg Biochem 2017. [PMID: 28651169 DOI: 10.1016/j.jinorgbio.2017.06.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The syntheses of three platinum(II) complexes bearing sulfonamide- ( (E)-2-(4-methylphenylsulfonamido)-2',6'-difluoroazobenzene, HL1) and hydroxy-azo-2,6-difluorobenzene ((E)-2-((2,6-difluorophenyl)diazenyl)phenol, HL2) bidentate ligands is described. These complexes, [Pt(L1)(DMSO)Cl] (1), [Pt(L2)(DMSO)Cl] (2), and [Pt(L2)2] (3), were characterized by multinuclear NMR spectroscopy, mass spectrometry, and X-ray crystallography. Despite bearing azobenzene functional groups, none of the three complexes undergo photoisomerization. The anticancer activities of these complexes were evaluated in wild-type (A2780) and cisplatin-resistant (A2780CP70) ovarian cancer cells. All three complexes exhibited IC50 values below 10μM and displayed similar activity in both A2780 and A2780CP70 cell lines, indicating that they are not cross-resistant with cisplatin. The DNA-binding properties of 1-3 were investigated by circular dichroism spectroscopy and by agarose gel electrophoresis. Both studies suggest that 1 and 2 form monofunctional DNA adducts.
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Affiliation(s)
- Katia G Samper
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States; Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain
| | - Sierra C Marker
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Pau Bayón
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain
| | - Samantha N MacMillan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Ivan Keresztes
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States
| | - Òscar Palacios
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain.
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States.
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Potentiation of cisplatin-induced antiproliferative and apoptotic activities by the antiarrhythmic drug procainamide hydrochloride. Pharmacol Rep 2016; 68:654-61. [DOI: 10.1016/j.pharep.2016.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 01/25/2016] [Accepted: 02/18/2016] [Indexed: 11/19/2022]
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12
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Chen Y, Wu Q, Wang X, Xie Q, Tang Y, Lan Y, Zhang S, Mei W. Microwave-Assisted Synthesis of Arene Ru(II) Complexes Induce Tumor Cell Apoptosis Through Selectively Binding and Stabilizing bcl-2 G-Quadruplex DNA. MATERIALS (BASEL, SWITZERLAND) 2016; 9:ma9050386. [PMID: 28773504 PMCID: PMC5503023 DOI: 10.3390/ma9050386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/06/2016] [Accepted: 05/10/2016] [Indexed: 12/21/2022]
Abstract
A series of arene Ru(II) complexes coordinated with phenanthroimidazole derivatives, [(η⁶-C₆H₆)Ru(l)Cl]Cl(1b L = p-ClPIP = 2-(4-Chlorophenyl)imidazole[4,5f] 1,10-phenanthroline; 2b L = m-ClPIP = 2-(3-Chlorophenyl)imidazole[4,5f] 1,10-phenanthroline; 3b L = p-NPIP = 2-(4-Nitrophenyl)imidazole[4,5f] 1,10-phenanthroline; 4b L = m-NPIP = 2-(3-Nitrophenyl) imidazole [4,5f] 1,10-phenanthroline) were synthesized in yields of 89.9%-92.7% under conditions of microwave irradiation heating for 30 min to liberate four arene Ru(II) complexes (1b, 2b, 3b, 4b). The anti-tumor activity of 1b against various tumor cells was evaluated by MTT assay. The results indicated that this complex blocked the growth of human lung adenocarcinoma A549 cells with an IC50 of 16.59 μM. Flow cytometric analysis showed that apoptosis of A549 cells was observed following treatment with 1b. Furthermore, the in vitro DNA-binding behaviors that were confirmed by spectroscopy indicated that 1b could selectively bind and stabilize bcl-2 G-quadruplex DNA to induce apoptosis of A549 cells. Therefore, the synthesized 1b has impressive bcl-2 G-quadruplex DNA-binding and stabilizing activities with potential applications in cancer chemotherapy.
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Affiliation(s)
- Yanhua Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Qiong Wu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Xicheng Wang
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China.
| | - Qiang Xie
- The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 440100, China.
| | - Yunyun Tang
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China.
| | - Yutao Lan
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou 510310, China.
| | - Shuangyan Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Wenjie Mei
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Mavroidi B, Sagnou M, Stamatakis K, Paravatou-Petsotas M, Pelecanou M, Methenitis C. Palladium(II) and platinum(II) complexes of derivatives of 2-(4′-aminophenyl)benzothiazole as potential anticancer agents. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.01.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Kathiresan S, Dhivya R, Vigneshwar M, Rajasekaran M, Ranjani J, Rajendhran J, Srinivasan S, Mugesh S, Murugan M, Athappan P, Annaraj J. Biological evaluation of redox stable cisplatin/Cu(II)-DNA adducts as potential anticancer agents. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1105366] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Sellamuthu Kathiresan
- Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Madurai, India
| | - Raman Dhivya
- Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Madurai, India
| | - Murugesan Vigneshwar
- Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Madurai, India
| | | | - Jyothi Ranjani
- Department of Genetics, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Jeyaprakash Rajendhran
- Department of Genetics, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Sankaran Srinivasan
- Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India
- A&B Labs, Houston, TX, USA
| | - Subramanian Mugesh
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Maruthamuthu Murugan
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Periakaruppan Athappan
- Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India
| | - Jamespandi Annaraj
- Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Madurai, India
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15
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Synthesis, characterization and biological activity of platinum(II) complexes with a tetrapyrazole ligand. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.09.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Brabec V, Pracharova J, Novakova O, Gibson D, Kasparkova J. The induction of lysis in lysogenic strains of Escherichia coli by a new antitumor transplatin derivative and its DNA interactions. Dalton Trans 2015; 44:3573-82. [DOI: 10.1039/c4dt02603a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
DNA is the cellular target for antitumor derivatives of transplatin including those containing small aliphatic amino ligands.
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Affiliation(s)
- Viktor Brabec
- Institute of Biophysics
- Academy of Sciences of the Czech Republic
- CZ-61265 Brno
- Czech Republic
| | - Jitka Pracharova
- Department of Biophysics
- Centre of the Region Hana for Biotechnological and Agricultural Research
- Palacky University
- 783 41 Olomouc
- Czech Republic
| | - Olga Novakova
- Institute of Biophysics
- Academy of Sciences of the Czech Republic
- CZ-61265 Brno
- Czech Republic
| | - Dan Gibson
- Institute for Drug Research
- School of Pharmacy
- The Hebrew University
- Jerusalem 91120
- Israel
| | - Jana Kasparkova
- Department of Biophysics
- Faculty of Science
- Palacky University
- CZ-77146 Olomouc
- Czech Republic
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17
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Robles-Escajeda E, Martínez A, Varela-Ramirez A, Sánchez-Delgado RA, Aguilera RJ. Analysis of the cytotoxic effects of ruthenium-ketoconazole and ruthenium-clotrimazole complexes on cancer cells. Cell Biol Toxicol 2013; 29:431-43. [PMID: 24272524 PMCID: PMC4207122 DOI: 10.1007/s10565-013-9264-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 11/12/2013] [Indexed: 12/26/2022]
Abstract
Ruthenium-based compounds have intriguing anti-cancer properties, and some of these novel compounds are currently in clinical trials. To continue the development of new metal-based drug combinations, we coupled ruthenium (Ru) with the azole compounds ketoconazole (KTZ) and clotrimazole (CTZ), which are well-known antifungal agents that also display anticancer properties. We report the activity of a series of 12 Ru-KTZ and Ru-CTZ compounds against three prostate tumor cell lines with different androgen sensitivity, as well as cervical cancer and lymphoblastic lymphoma cell lines. In addition, human cell lines were used to evaluate the toxicity against non-transformed cells and to establish selectivity indexes. Our results indicate that the combination of ruthenium and KTZ/CTZ in a single molecule results in complexes that are more cytotoxic than the individual components alone, displaying in some cases low micromolar CC50 values and high selectivity indexes. Additionally, all compounds are more cytotoxic against prostate cell lines with lower cytotoxicity against non-transformed epidermal cell lines. Some of the compounds were found to primarily induce cell death via apoptosis yet weakly interact with DNA. Our studies also demonstrate that the cytotoxicity induced by our Ru-based compounds is not directly related to their ability to interact with DNA.
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Affiliation(s)
- Elisa Robles-Escajeda
- Border Biomedical Research Center and Department of Biological Sciences, The University of Texas at El Paso, El Paso, TX, 79968, USA
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Frybortova M, Novakova O, Stepankova J, Novohradsky V, Gibson D, Kasparkova J, Brabec V. Activation of trans geometry in bifunctional mononuclear platinum complexes by a non-bulky methylamine ligand. J Inorg Biochem 2013; 126:46-54. [PMID: 23770803 DOI: 10.1016/j.jinorgbio.2013.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/23/2013] [Accepted: 05/23/2013] [Indexed: 10/26/2022]
Abstract
In order to shed light on the mechanism that underlies activity of bifunctional mononuclear Pt(II) analogs of transplatin we examined in the present work a DNA binding mode of the analog of transplatin, namely trans-[Pt(CH3NH2)2Cl2], in which NH3 groups were replaced only by a small, non-bulky methylamine ligand. This choice was made because we were interested to reveal the role of the bulkiness of the amines used to substitute NH3 in transplatin to produce antitumor-active Pt(II) drug. The results indicate that trans-[Pt(CH3NH2)2Cl2] forms a markedly higher amount of more distorting intrastrand cross-links than transplatin which forms in DNA preferentially less distorting and persisting monofunctional adducts. Also importantly, the accumulation of trans-[Pt(CH3NH2)2Cl2] in tumor cells was considerably greater than that of transplatin and cisplatin. In addition, the results of the present work demonstrate that the replacement of ammine groups by the non-bulky methylamine ligand in the molecule of ineffective transplatin results in a radical enhancement of its activity in tumor cell lines including cisplatin-resistant tumor cells. Thus, activation of the trans geometry in bifunctional mononuclear Pt(II) complexes can be also accomplished by replacement of ammine groups in transplatin by non-bulky methylamine ligands so that it is not limited only to the replacement by relatively bulky and stereochemically more demanding amino ligands.
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Affiliation(s)
- Michaela Frybortova
- Department of Biophysics, Faculty of Science, Palacky University, 17. listopadu 12, CZ-77146 Olomouc, Czech Republic
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Wu Q, Fan C, Chen T, Liu C, Mei W, Chen S, Wang B, Chen Y, Zheng W. Microwave-assisted synthesis of arene ruthenium(II) complexes that induce S-phase arrest in cancer cells by DNA damage-mediated p53 phosphorylation. Eur J Med Chem 2013; 63:57-63. [DOI: 10.1016/j.ejmech.2013.01.037] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 01/25/2013] [Accepted: 01/30/2013] [Indexed: 10/27/2022]
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Synthesis, characterization, and biological evaluation of new tetrazole-based platinum(II) and palladium(II) chlorido complexes — Potent cisplatin analogues and their trans isomers. J Inorg Biochem 2013; 120:44-53. [DOI: 10.1016/j.jinorgbio.2012.12.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 10/21/2012] [Accepted: 12/05/2012] [Indexed: 11/17/2022]
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21
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Toxicity in tumor cells, DNA binding mode, and resistance to decomposition by sulfur nucleophiles of new dinuclear bifunctional trans-PtII complexes containing long alkane linkers. PURE APPL CHEM 2012. [DOI: 10.1351/pac-con-12-07-08] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In an effort to design dinuclear PtII compounds that maintain the target (DNA) binding profile of the trans-oriented dinuclear bifunctional PtII complexes containing aliphatic linker chains but are less susceptible to metabolic decomposition, the new, long-chain dinuclear PtII complexes—[{trans-PtCl(dien)}2-μ-(CH2)n]2+ (n = 7,10,12, dien = diethylenetriamine)—were synthesized. The toxicity of these metallodrugs was examined in ovarian tumor cell lines. The results showed that the activity of these complexes increased with growing length of the linker; the activity of complex containing the longest linker (n = 12) was comparable with that of cis-diamminedichloridoplatinum(II) (cisplatin). This observation correlated with the results of DNA binding studies performed in cell-free media. The results of these studies demonstrated that the growing length of the aliphatic bridge promoted more distorting conformational alterations induced in DNA. Attention was also paid to the reactivity of {[Pt(dien)Cl]2-alkane} compounds with glutathione (GSH). The results of these experiments support the thesis that the dinuclear structure of {[Pt(dien)Cl]2-alkane} complexes remains stable in the presence of S-containing compounds without undergoing chemical degradation as previously observed for some di/trinuclear bifunctional PtII complexes. This enhanced stability represents a favorable property which may contribute to reduce side effects and increase therapeutic efficacy of the dinuclear {[Pt(dien)Cl]2-alkane} compounds.
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Olivova R, Stepankova J, Muchova T, Novohradsky V, Novakova O, Vrana O, Kasparkova J, Brabec V. Mechanistic insights into toxic effects of a benzotriazolate-bridged dinuclear platinum(II) compound in tumor cells. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mlcouskova J, Kasparkova J, Suchankova T, Komeda S, Brabec V. DNA conformation and repair of polymeric natural DNA damaged by antitumor azolato-bridged dinuclear PtII complex. J Inorg Biochem 2012; 114:15-23. [DOI: 10.1016/j.jinorgbio.2012.04.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/23/2012] [Accepted: 04/24/2012] [Indexed: 11/17/2022]
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Graham LA, Suryadi J, West TK, Kucera GL, Bierbach U. Synthesis, aqueous reactivity, and biological evaluation of carboxylic acid ester-functionalized platinum-acridine hybrid anticancer agents. J Med Chem 2012; 55:7817-27. [PMID: 22871158 DOI: 10.1021/jm300879k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The synthesis of platinum-acridine hybrid agents containing carboxylic acid ester groups is described. The most active derivatives and the unmodified parent compounds showed up to 6-fold higher activity in ovarian cancer (OVCAR-3) and breast cancer (MCF-7, MDA-MB-231) cell lines than cisplatin. Inhibition of cell proliferation at nanomolar concentrations was observed in pancreatic (PANC-1) and nonsmall cell lung cancer cells (NSCLC, NCI-H460) of 80- and 150-fold, respectively. Introduction of the ester groups did not affect the cytotoxic properties of the hybrids, which form the same monofunctional-intercalative DNA adducts as the parent compounds, as demonstrated in a plasmid unwinding assay. In-line high-performance liquid chromatography and electrospray mass spectrometry (LC-ESMS) shows that the ester moieties undergo platinum-mediated hydrolysis in a chloride concentration-dependent manner to form carboxylate chelates. Potential applications of the chloride-sensitive ester hydrolysis as a self-immolative release mechanism for tumor-selective delivery of platinum-acridines are discussed.
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Affiliation(s)
- Leigh A Graham
- Department of Chemistry, Wake Forest University, Winston-Salem, North Carolina 27109, USA
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Pracharova J, Zerzankova L, Stepankova J, Novakova O, Farrer NJ, Sadler PJ, Brabec V, Kasparkova J. Interactions of DNA with a new platinum(IV) azide dipyridine complex activated by UVA and visible light: relationship to toxicity in tumor cells. Chem Res Toxicol 2012; 25:1099-111. [PMID: 22420335 DOI: 10.1021/tx300057y] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The Pt(IV) diazido complex trans,trans,trans-[Pt(N(3))(2)(OH)(2)(pyridine)(2)] (1) is unreactive in the dark but is cytotoxic when photoactivated by UVA and visible light. We have shown that 1 when photoactivated accumulates in tumor cells and binds strongly to nuclear DNA under conditions in which it is toxic to tumor cells. The nature of the DNA adducts, including conformational alterations, induced by photoactivated 1 are distinctly different from those produced in DNA by conventional cisplatin or transplatin. In addition, the observation that major DNA adducts of photoactivated 1 are able to efficiently stall RNA polymerase II more efficiently than cisplatin suggests that transcription inhibition may contribute to the cytotoxicity levels observed for photoactivated 1. Hence, DNA adducts of 1 could trigger a number of downstream cellular effects different from those triggered in cancer cells by DNA adducts of cisplatin. This might lead to the therapeutic effects that could radically improve chemotherapy by platinum complexes. The findings of the present work help to explain the different cytotoxic effects of photoactivated 1 and conventional cisplatin and thereby provide new insights into mechanisms associated with the antitumor effects of platinum complexes photoactivated by UVA and visible light.
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Affiliation(s)
- Jitka Pracharova
- Department of Biophysics, Faculty of Science, Palacky University, 17. Listopadu 12, Olomouc, Czech Republic
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Chang YM, Chen CKM, Hou MH. Conformational changes in DNA upon ligand binding monitored by circular dichroism. Int J Mol Sci 2012; 13:3394-3413. [PMID: 22489158 PMCID: PMC3317384 DOI: 10.3390/ijms13033394] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 02/22/2012] [Accepted: 02/24/2012] [Indexed: 11/16/2022] Open
Abstract
Circular dichroism (CD) spectroscopy is an optical technique that measures the difference in the absorption of left and right circularly polarized light. This technique has been widely employed in the studies of nucleic acids structures and the use of it to monitor conformational polymorphism of DNA has grown tremendously in the past few decades. DNA may undergo conformational changes to B-form, A-form, Z-form, quadruplexes, triplexes and other structures as a result of the binding process to different compounds. Here we review the recent CD spectroscopic studies of the induction of DNA conformational changes by different ligands, which includes metal derivative complex of aureolic family drugs, actinomycin D, neomycin, cisplatin, and polyamine. It is clear that CD spectroscopy is extremely sensitive and relatively inexpensive, as compared with other techniques. These studies show that CD spectroscopy is a powerful technique to monitor DNA conformational changes resulting from drug binding and also shows its potential to be a drug-screening platform in the future.
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Affiliation(s)
- Yu-Ming Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan; E-Mails: (Y.-M.C.); (C.K.-M.C.)
| | - Cammy K.-M. Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan; E-Mails: (Y.-M.C.); (C.K.-M.C.)
| | - Ming-Hon Hou
- Institute of Genomics and Bioinformatics, National Chung Hsing University, Taichung 402, Taiwan
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Uemura M, Yoshikawa Y, Chikuma M, Komeda S. A circular dichroism study uncovers a two-step interaction of antitumor azolato-bridged dinuclear platinum(ii) complexes with calf thymus DNA. Metallomics 2012; 4:641-4. [DOI: 10.1039/c2mt20022h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Dalla Via L, Santi S, Di Noto V, Venzo A, Agostinelli E, Calcabrini A, Condello M, Toninello A. Platinum(II) chloride indenyl complexes: electrochemical and biological evaluation. J Biol Inorg Chem 2011; 16:695-713. [DOI: 10.1007/s00775-011-0771-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Accepted: 03/05/2011] [Indexed: 11/24/2022]
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Kothandapani A, Dangeti VSMN, Brown AR, Banze LA, Wang XH, Sobol RW, Patrick SM. Novel role of base excision repair in mediating cisplatin cytotoxicity. J Biol Chem 2011; 286:14564-74. [PMID: 21357694 DOI: 10.1074/jbc.m111.225375] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Using isogenic mouse embryonic fibroblasts and human cancer cell lines, we show that cells defective in base excision repair (BER) display a cisplatin-specific resistant phenotype. This was accompanied by enhanced repair of cisplatin interstrand cross-links (ICLs) and ICL-induced DNA double strand breaks, but not intrastrand adducts. Cisplatin induces abasic sites with a reduced accumulation in uracil DNA glycosylase (UNG) null cells. We show that cytosines that flank the cisplatin ICLs undergo preferential oxidative deamination in vitro, and AP endonuclease 1 (APE1) can cleave the resulting ICL DNA substrate following removal of the flanking uracil. We also show that DNA polymerase β has low fidelity at the cisplatin ICL site after APE1 incision. Down-regulating ERCC1-XPF in BER-deficient cells restored cisplatin sensitivity. Based on our results, we propose a novel model in which BER plays a positive role in maintaining cisplatin cytotoxicity by competing with the productive cisplatin ICL DNA repair pathways.
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Affiliation(s)
- Anbarasi Kothandapani
- Department of Biochemistry and Cancer Biology, University of Toledo, Health Science Campus, Toledo, Ohio 43614, USA
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Geldmacher Y, Kitanovic I, Alborzinia H, Bergerhoff K, Rubbiani R, Wefelmeier P, Prokop A, Gust R, Ott I, Wölfl S, Sheldrick WS. Cellular Selectivity and Biological Impact of Cytotoxic Rhodium(III) and Iridium(III) Complexes Containing Methyl‐Substituted Phenanthroline Ligands. ChemMedChem 2011; 6:429-39. [DOI: 10.1002/cmdc.201000517] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 01/11/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Yvonne Geldmacher
- Fakultät für Chemie und Biochemie, Ruhr‐Universität Bochum, 44780 Bochum (Germany), Fax: (+49) 234‐3214420
| | - Igor Kitanovic
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - Hamed Alborzinia
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - Katharina Bergerhoff
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - Riccardo Rubbiani
- Institut für Pharmazeutische Chemie, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig (Germany)
| | - Pascal Wefelmeier
- Department of Pediatric Oncology, Children's Hospital of Cologne, Amsterdamer Straße 59, 50735 Cologne (Germany)
| | - Aram Prokop
- Department of Pediatric Oncology, Children's Hospital of Cologne, Amsterdamer Straße 59, 50735 Cologne (Germany)
| | - Ronald Gust
- Institut für Pharmazie, Freie‐Universität Berlin, Königin‐Luise‐Straße 2‐4, 14195 Berlin (Germany)
| | - Ingo Ott
- Institut für Pharmazeutische Chemie, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig (Germany)
| | - Stefan Wölfl
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - William S. Sheldrick
- Fakultät für Chemie und Biochemie, Ruhr‐Universität Bochum, 44780 Bochum (Germany), Fax: (+49) 234‐3214420
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Bieda R, Kitanovic I, Alborzinia H, Meyer A, Ott I, Wölfl S, Sheldrick WS. Antileukemic activity and cellular effects of rhodium(III) crown thiaether complexes. Biometals 2011; 24:645-61. [DOI: 10.1007/s10534-011-9414-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Accepted: 01/12/2011] [Indexed: 11/30/2022]
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Kostrhunova H, Vrana O, Suchankova T, Gibson D, Kasparkova J, Brabec V. Different Features of the DNA Binding Mode of Antitumor cis-Amminedichlorido(cyclohexylamine)platinum(II) (JM118) and Cisplatin in Vitro. Chem Res Toxicol 2010; 23:1833-42. [DOI: 10.1021/tx1002904] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hana Kostrhunova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., CZ-61265 Brno, Czech Republic, Department of Experimental Physics, Faculty of Sciences, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic, and Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Oldrich Vrana
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., CZ-61265 Brno, Czech Republic, Department of Experimental Physics, Faculty of Sciences, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic, and Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Tereza Suchankova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., CZ-61265 Brno, Czech Republic, Department of Experimental Physics, Faculty of Sciences, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic, and Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Dan Gibson
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., CZ-61265 Brno, Czech Republic, Department of Experimental Physics, Faculty of Sciences, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic, and Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Jana Kasparkova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., CZ-61265 Brno, Czech Republic, Department of Experimental Physics, Faculty of Sciences, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic, and Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., CZ-61265 Brno, Czech Republic, Department of Experimental Physics, Faculty of Sciences, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic, and Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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Kokoschka M, Bangert JA, Stoll R, Sheldrick WS. Sequence-Selective Organoiridium DNA Bis-Intercalators with Flexible Dithiaalkane Linker Chains. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901123] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ruiz J, Rodríguez V, de Haro C, Espinosa A, Pérez J, Janiak C. New 7-azaindole palladium and platinum complexes: crystal structures and theoretical calculations. In vitro anticancer activity of the platinum compounds. Dalton Trans 2010; 39:3290-301. [DOI: 10.1039/b920854b] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Roy S, Westmaas JA, Buda F, Reedijk J. Platinum(II) compounds with chelating ligands based on pyridine and pyrimidine: Synthesis, characterizations, DFT calculations, cytotoxic assays and binding to a DNA model base. J Inorg Biochem 2009; 103:1278-87. [DOI: 10.1016/j.jinorgbio.2009.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Revised: 06/30/2009] [Accepted: 07/06/2009] [Indexed: 10/20/2022]
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Nováková O, Malina J, Kaspárková J, Halámiková A, Bernard V, Intini F, Natile G, Brabec V. Energetics, conformation, and recognition of DNA duplexes modified by methylated analogues of [PtCl(dien)]+. Chemistry 2009; 15:6211-21. [PMID: 19449361 DOI: 10.1002/chem.200900388] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In early studies of empirical structure-activity relationships, monodentate Pt(II) complexes were considered to be biologically inactive. Examples of such inactive monodentate Pt(II) compounds are [PtCl(dien)]+ (dien=diethylenetriamine) and [PtCl(NH3)3]+. DNA is considered the major biological target of platinum compounds. Thus, monodentate DNA binding of Pt(II) compounds was previously expected to display insignificant biological effects because it was assumed to affect DNA conformation and downstream cellular processes markedly less than the cross-links of bifunctional Pt(II) complexes. More recently it was shown that some monodentate Pt(II) complexes do exhibit biological effects; the active monodentate Pt(II) complexes commonly feature bulkier amine ligands than the hitherto used dien or NH(3) groups. We were therefore interested in determining whether a simple but marked enhancement of the bulkiness of the dien ligand in monodentate [Pt(NO3)(dien)]+ by multiple methylation of this ligand affects the early phases in which platinum compounds exert their biological activity. More specifically, the goals of this study, performed in cell-free media, were to determine how the modification of DNA duplexes by methylated analogues of [Pt(NO3)(dien)]+ affects their energetics and how the alterations of this biophysical parameter are reflected by the recognition of these duplexes by DNA polymerases and the DNA repair system. We have found that the impact of the methylation of [Pt(NO3)(dien)]+ on the biophysical properties of DNA (thermodynamic, thermal, and conformational properties) and its biochemical processes (DNA polymerization and the repair of DNA adducts) is remarkable. Hence, we conclude that monodentate DNA binding of Pt(II) compounds may considerably affect the biophysical properties of DNA and consequently downstream cellular processes as a result of a large increase in the bulkiness of the nonleaving ligands in this class of metal complex.
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Affiliation(s)
- Olga Nováková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i. Kralovopolska 135, CZ-61265 Brno, Czech Republic
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Malina J, Vrana O, Brabec V. Mechanistic studies of the modulation of cleavage activity of topoisomerase I by DNA adducts of mono- and bi-functional PtII complexes. Nucleic Acids Res 2009; 37:5432-42. [PMID: 19589806 PMCID: PMC2760795 DOI: 10.1093/nar/gkp580] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Using electrophoresis and replication mapping, we show that the presence of DNA adducts of bifunctional antitumor cisplatin or monodentate [PtCl(dien)]Cl (dien = diethylenetriamine) in the substrate DNA inhibits eukaryotic topoisomerase 1 (top1) action, the adducts of cisplatin being more effective. The presence of camptothecin in the samples of platinated DNA markedly enhances effects of Pt–DNA adducts on top1 activity. Interestingly, the effects of Pt–DNA adducts on the catalytic activity of top1 in the presence of camptothecin differ depending on the sequence context. A multiple metallation of the short nucleotide sequences on the scissile strand, immediately downstream of the cleavage site impedes the cleavage by top1. On the other hand, DNA cleavage by top1 at some cleavage sites which were not platinated in their close proximity is notably enhanced as a consequence of global platination of DNA. We suggest that this enhancement of DNA cleavage by top1 may consist in its inability to bind to other cleavage sites platinated in their close neighborhood; thus, more molecules of top1 may become available for cleavage at the sites where top1 normally cleaves and where platination does not interfere.
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Affiliation(s)
- Jaroslav Malina
- Institute of Biophysics, Academy of Sciences of the Czech Republic, CZ-61265 Brno, Czech Republic
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Bieda R, Ott I, Dobroschke M, Prokop A, Gust R, Sheldrick WS. Structure–activity relationships and DNA binding properties of apoptosis inducing cytotoxic rhodium(III) polypyridyl complexes containing the cyclic thioether [9]aneS3. J Inorg Biochem 2009; 103:698-708. [DOI: 10.1016/j.jinorgbio.2009.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 01/05/2009] [Accepted: 01/07/2009] [Indexed: 11/26/2022]
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Nakabayashi Y, Inada H, Minoura Y, Iwamoto N, Yamauchi O. Effects of flexible bridging ligands on DNA-binding of dinuclear ruthenium(II)-2,2′-bipyridine complexes. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.02.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Corral E, Hotze ACG, den Dulk H, Leczkowska A, Rodger A, Hannon MJ, Reedijk J. Ruthenium polypyridyl complexes and their modes of interaction with DNA: is there a correlation between these interactions and the antitumor activity of the compounds? J Biol Inorg Chem 2008; 14:439-48. [PMID: 19085018 PMCID: PMC3036821 DOI: 10.1007/s00775-008-0460-x] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Accepted: 12/02/2008] [Indexed: 11/04/2022]
Abstract
Various interaction modes between a group of six ruthenium polypyridyl complexes and DNA have been studied using a number of spectroscopic techniques. Five mononuclear species were selected with formula [Ru(tpy)L1L2](2−n)+, and one closely related dinuclear cation of formula [{Ru(apy)(tpy)}2{μ-H2N(CH2)6NH2}]4+. The ligand tpy is 2,2′:6′,2″-terpyridine and the ligand L1 is a bidentate ligand, namely, apy (2,2′-azobispyridine), 2-phenylazopyridine, or 2-phenylpyridinylmethylene amine. The ligand L2 is a labile monodentate ligand, being Cl−, H2O, or CH3CN. All six species containing a labile L2 were found to be able to coordinate to the DNA model base 9-ethylguanine by 1H NMR and mass spectrometry. The dinuclear cationic species, which has no positions available for coordination to a DNA base, was studied for comparison purposes. The interactions between a selection of four representative complexes and calf-thymus DNA were studied by circular and linear dichroism. To explore a possible relation between DNA-binding ability and toxicity, all compounds were screened for anticancer activity in a variety of cancer cell lines, showing in some cases an activity which is comparable to that of cisplatin. Comparison of the details of the compound structures, their DNA binding, and their toxicity allows the exploration of structure–activity relationships that might be used to guide optimization of the activity of agents of this class of compounds.
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Affiliation(s)
- Eva Corral
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
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Bugarcic T, Habtemariam A, Stepankova J, Heringova P, Kasparkova J, Deeth RJ, Johnstone RDL, Prescimone A, Parkin A, Parsons S, Brabec V, Sadler PJ. The Contrasting Chemistry and Cancer Cell Cytotoxicity of Bipyridine and Bipyridinediol Ruthenium(II) Arene Complexes. Inorg Chem 2008; 47:11470-86. [DOI: 10.1021/ic801361m] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tijana Bugarcic
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Abraha Habtemariam
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Jana Stepankova
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Pavla Heringova
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Jana Kasparkova
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Robert J. Deeth
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Russell D. L. Johnstone
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Alessandro Prescimone
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Andrew Parkin
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Simon Parsons
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Viktor Brabec
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
| | - Peter J. Sadler
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K., Department of Chemistry, University of Warwick, Coventry C4V 7AL, U.K., Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic, and Laboratory of Biophysics, Department of Experimental Physics, Faculty of Sciences, Palacky University, tr. Svobody 26, CZ-77146 Olomouc, Czech Republic
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Kasparkova J, Marini V, Bursova V, Brabec V. Biophysical studies on the stability of DNA intrastrand cross-links of transplatin. Biophys J 2008; 95:4361-71. [PMID: 18676645 PMCID: PMC2567932 DOI: 10.1529/biophysj.108.138909] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Accepted: 07/18/2008] [Indexed: 11/18/2022] Open
Abstract
Clinically ineffective transplatin [trans-diamminedichloridoplatinum(II)] is used in the studies of the structure-pharmacological activity relationship of platinum compounds. In addition, a number of transplatin analogs exhibit promising toxic effects in several tumor cell lines including those resistant to conventional antitumor cisplatin. Moreover, transplatin-modified oligonucleotides have been shown to be effective modulators of gene expression. Owing to these facts and because DNA is also considered the major pharmacological target of platinum complexes, interactions between transplatin and DNA are of great interest. We examined, using biophysical and biochemical methods, the stability of 1,3-GNG intrastrand cross-links (CLs) formed by transplatin in short synthetic oligodeoxyribonucleotide duplexes and natural double-helical DNA. We have found that transplatin forms in double-helical DNA 1,3-GNG intrastrand CLs, but their stability depends on the sequence context. In some sequences the 1,3-GNG intrastrand CLs formed by transplatin in double-helical DNA readily rearrange into interstrand CLs. On the other hand, in a number of other sequences these intrastrand CLs are relatively stable. We show that the stability of 1,3-GNG intrastrand CLs of transplatin correlates with the extent of conformational distortion and thermodynamic destabilization induced in double-helical DNA by this adduct.
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Affiliation(s)
- Jana Kasparkova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, CZ-61265 Brno, Czech Republic.
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Ruiz J, Rodríguez V, Cutillas N, López G, Bautista D. Acetonimine and 4-imino-2-methylpentan-2-amino platinum(II) complexes: synthesis and in vitro antitumor activity. Inorg Chem 2008; 47:10025-36. [PMID: 18844342 DOI: 10.1021/ic8012359] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of [Pt(dmba)(PPh3)Cl] [where dmba = N,C-chelating 2-(dimethylaminomethyl)phenyl] with aqueous ammonia in acetone in the presence of AgClO4 gives the acetonimine complex [Pt(dmba)(PPh3)(NH=CMe2)]ClO4 (1). The reaction of [Pt(dmba)(DMSO)Cl] with aqueous ammonia in acetone in the presence of AgClO4 gives a mixture of [Pt(dmba)(NH=CMe2)2]ClO4 (2) and [Pt(dmba)(imam)]ClO4 (3a) (where imam = 4-imino-2-methylpentan-2-amino). [Pt(dmba)(DMSO)Cl] reacts with [Ag(NH=CMe2)2]ClO4 in a 1:1 molar ratio to give [Pt(dmba)(DMSO)(NH=CMe2)]ClO4 (4). The reaction of [Pt(dmba)(DMSO)Cl] with 20% aqueous ammonia in acetone at 70 degrees C in the presence of KOH gives [Pt(dmba)(CH2COMe)(NH=CMe2)] (5), whereas the reaction of [Pt(dmba)(DMSO)Cl] with 20% aqueous ammonia in acetone in the absence of KOH gives [Pt(dmba)(imam)]Cl (3b). The reaction of [NBu4]2[Pt2(C6F5)4(mu-Cl)2] with [Ag(NH=CMe2)2]ClO4 in a 1:2 molar ratio produces cis-[Pt(C6F5)2(NH=CMe2)2] (6). The crystal structures of 1 x 2 Me2CO, 2, 3a, 5, and 6 have been determined. Values of IC50 were calculated for the new platinum complexes against a panel of human tumor cell lines representative of ovarian (A2780 and A2780 cisR) and breast cancers (T47D). At 48 h incubation time complexes 1, 4, and 5 show very low resistance factors against an A2780 cell line which has acquired resistance to cisplatin. 1, 4, and 5 were more active than cisplatin in T47D (up to 30-fold in some cases). The DNA adduct formation of 1, 4, and 5 was followed by circular dichroism and electrophoretic mobility.
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Affiliation(s)
- José Ruiz
- Departamento de Quimica Inorganica and S.U.I.C., Edificio S.A.C.E., Universidad de Murcia, E-30071-Murcia, Spain.
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Suchánková T, Vojtísková M, Reedijk J, Brabec V, Kaspárková J. DNA and glutathione interactions in cell-free media of asymmetric platinum(II) complexes cis- and trans-[PtCl2(isopropylamine)(1-methylimidazole)]: relations to their different antitumor effects. J Biol Inorg Chem 2008; 14:75-87. [PMID: 18777181 DOI: 10.1007/s00775-008-0425-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2008] [Accepted: 08/24/2008] [Indexed: 11/25/2022]
Abstract
The global modification of mammalian and plasmid DNAs by the novel platinum compounds cis-[PtCl(2)(isopropylamine)(1-methylimidazole)] and trans-[PtCl(2)(isopropylamine)(1-methylimidazole)] and the reactivity of these compounds with reduced glutathione (GSH) were investigated in cell-free media using various biochemical and biophysical methods. Earlier cytotoxicity studies had revealed that the replacement of the NH(3) groups in cisplatin by the azole and isopropylamine ligands lowers the activity of cisplatin in both sensitive and resistant cell lines. The results of the present work show that this replacement does not considerably affect the DNA modifications by this drug, recognition of these modifications by HMGB1 protein, their repair, and reactivity of the platinum complex with GSH. These results were interpreted to mean that the reduced activity of this analog of cisplatin in tumor cell lines is due to factors that do not operate at the level of the target DNA. In contrast, earlier studies had shown that the replacement of the NH(3) groups in the clinically ineffective trans isomer (transplatin) by the azole and isopropylamine ligands results in a radical enhancement of its activity in tumor cell lines. Importantly, this replacement also markedly alters the DNA binding mode of transplatin, which is distinctly different from that of cisplatin, but does not affect reactivity with GSH. Hence, the results of the present work are consistent with the view and support the hypothesis systematically tested by us and others that platinum drugs that bind to DNA in a fundamentally different manner from that of conventional cisplatin may have altered pharmacological properties.
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Affiliation(s)
- Tereza Suchánková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 61265, Brno, Czech Republic
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45
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Scharwitz MA, Ott I, Gust R, Kromm A, Sheldrick WS. Synthesis, cellular uptake and structure-activity relationships for potent cytotoxic trichloridoiridium(III) polypyridyl complexes. J Inorg Biochem 2008; 102:1623-30. [DOI: 10.1016/j.jinorgbio.2008.03.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 02/25/2008] [Accepted: 03/17/2008] [Indexed: 11/30/2022]
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46
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Halámiková A, Heringová P, Kašpárková J, Intini FP, Natile G, Nemirovski A, Gibson D, Brabec V. Cytotoxicity, mutagenicity, cellular uptake, DNA and glutathione interactions of lipophilic trans-platinum complexes tethered to 1-adamantylamine. J Inorg Biochem 2008; 102:1077-89. [DOI: 10.1016/j.jinorgbio.2007.12.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2007] [Revised: 12/07/2007] [Accepted: 12/14/2007] [Indexed: 11/26/2022]
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47
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Ruiz J, Villa MD, Cutillas N, López G, Haro CD, Bautista D, Moreno V, Valencia L. Palladium(II) and Platinum(II) Organometallic Complexes with 4,7-dihydro-5-methyl-7-oxo[1,2,4]triazolo[1,5-a]pyrimidine. Antitumor Activity of the Platinum Compounds. Inorg Chem 2008; 47:4490-505. [DOI: 10.1021/ic701873b] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José Ruiz
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - María Dolores Villa
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Natalia Cutillas
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Gregorio López
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Concepción de Haro
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Delia Bautista
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Virtudes Moreno
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Laura Valencia
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
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Kasparkova J, Vojtiskova M, Natile G, Brabec V. Unique Properties of DNA Interstrand Cross-Links of Antitumor Oxaliplatin and the Effect of Chirality of the Carrier Ligand. Chemistry 2008; 14:1330-41. [DOI: 10.1002/chem.200701352] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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49
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Kanevskii IE, Kuznetsova SA. Synthesis of reactive nucleic acid analogues and their application for the study of structure and functions of biopolymers. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1998v067n07abeh000394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Schäfer S, Ott I, Gust R, Sheldrick WS. Influence of the Polypyridyl (pp) Ligand Size on the DNA Binding Properties, Cytotoxicity and Cellular Uptake of Organoruthenium(II) Complexes of the Type [(η6-C6Me6)Ru(L)(pp)]n+ [L = Cl,n = 1; L = (NH2)2CS,n = 2]. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700206] [Citation(s) in RCA: 149] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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