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Ojha R, Junk PC, Bond AM, Deacon GB. Oxidation of the Platinum(II) Anticancer Agent [Pt{( p-BrC 6F 4)NCH 2CH 2NEt 2}Cl(py)] to Platinum(IV) Complexes by Hydrogen Peroxide. Molecules 2023; 28:6402. [PMID: 37687231 PMCID: PMC10490441 DOI: 10.3390/molecules28176402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
PtIV coordination complexes are of interest as prodrugs of PtII anticancer agents, as they can avoid deactivation pathways owing to their inert nature. Here, we report the oxidation of the antitumor agent [PtII(p-BrC6F4)NCH2CH2NEt2}Cl(py)], 1 (py = pyridine) to dihydroxidoplatinum(IV) solvate complexes [PtIV{(p-BrC6F4)NCH2CH2NEt2}Cl(OH)2(py)].H2O, 2·H2O with hydrogen peroxide (H2O2) at room temperature. To optimize the yield, 1 was oxidized in the presence of added lithium chloride with H2O2 in a 1:2 ratio of Pt: H2O2, in CH2Cl2 producing complex 2·H2O in higher yields in both gold and red forms. Despite the color difference, red and yellow 2·H2O have the same structure as determined by single-crystal and X-ray powder diffraction, namely, an octahedral ligand array with a chelating organoamide, pyridine and chloride ligands in the equatorial plane, and axial hydroxido ligands. When tetrabutylammonium chloride was used as a chloride source, in CH2Cl2, another solvate, [PtIV{(p-BrC6F4)NCH2CH2NEt2}Cl(OH)2(py)].0.5CH2Cl2,3·0.5CH2Cl2, was obtained. These PtIV compounds show reductive dehydration into PtII [Pt{(p-BrC6F4)NCH=CHNEt2}Cl(py)], 1H over time in the solid state, as determined by X-ray powder diffraction, and in solution, as determined by 1H and 19F NMR spectroscopy and mass spectrometry. 1H contains an oxidized coordinating ligand and was previously obtained by oxidation of 1 under more vigorous conditions. Experimental data suggest that oxidation of the ligand is favored in the presence of excess H2O2 and elevated temperatures. In contrast, a smaller amount (1Pt:2H2O2) of H2O2 at room temperature favors the oxidation of the metal and yields platinum(IV) complexes.
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Affiliation(s)
- Ruchika Ojha
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia; (R.O.); (A.M.B.); (G.B.D.)
| | - Peter C. Junk
- College of Science, Technology & Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Alan M. Bond
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia; (R.O.); (A.M.B.); (G.B.D.)
| | - Glen B. Deacon
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia; (R.O.); (A.M.B.); (G.B.D.)
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Alajrawy OI, Hadi HA, Awad Al-Luhaibi RS, Sabbar BA. In-vitro cytotoxic activity and theoretical investigations for new mononuclear Pt(IV) and dinuclear Ru(III) with o-phenylenediamine ligand complexes against L20B cell line. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2022.100712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Ravera M, Gabano E, McGlinchey MJ, Osella D. Pt(IV) antitumor prodrugs: dogmas, paradigms, and realities. Dalton Trans 2022; 51:2121-2134. [PMID: 35015025 DOI: 10.1039/d1dt03886a] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Platinum(II)-based drugs are widely used for the treatment of solid tumors, especially in combination protocols. Severe side effects and occurrence of resistance are the major limitations to their clinical use. To overcome these drawbacks, a plethora of Pt(IV) derivatives, acting as anticancer prodrugs, have been designed, synthesized and preclinically (often only in vitro) tested. Here, we summarize the recent progress in the development and understanding of the chemical properties and biochemical features of these Pt(IV) prodrugs, especially those containing bioactive molecules as axial ligands, acting as multi-functional agents. Even though no such prodrugs have been yet approved for clinical use, many show encouraging pharmacological profiles. Thus, a better understanding of their features is a promising approach towards improving the available Pt-based anticancer agents.
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Affiliation(s)
- Mauro Ravera
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, Alessandria, Italy.
| | - Elisabetta Gabano
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, Alessandria, Italy.
| | | | - Domenico Osella
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, Alessandria, Italy.
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Ojha R, Boas JF, Best SP, Canty AJ, Junk PC, Deacon GB, Bond AM. Electron Delocalization in Spectroelectrochemically and Computationally Characterized [Pt{( p-BrC 6F 4)NCH═C(Cl)NEt 2}Cl(py)] + Formed by Electrochemical Oxidation of [Pt II{( p-BrC 6F 4)NCH═C(Cl)NEt 2}Cl(py)]. Inorg Chem 2021; 60:18899-18911. [PMID: 34851646 DOI: 10.1021/acs.inorgchem.1c02682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Pt{(p-BrC6F4)NCH═C(Cl)NEt2}Cl(py)] (1Cl) is the product of the hydrogen peroxide oxidation of the PtII anticancer agent [Pt{(p-BrC6F4)NCH2CH2NEt2}Cl(py)] (1). Insights into electron delocalization and bonding in [Pt{(p-BrC6F4)NCH═C(Cl)NEt2}Cl(py)]+ (1Cl+) obtained by electrochemical oxidation of 1Cl have been gained by spectroscopic and computational studies. The 1Cl/1Cl+ process is chemically and electrochemically reversible on the short time scale of voltammetry in dichloromethane (0.10 M [Bu4N][PF6]). Substantial stability is retained on longer time scales enabling a high yield of 1Cl+ to be generated by bulk electrolysis. In situ IR and visible spectroelectrochemical studies on the oxidation of 1Cl to 1Cl+ and the reduction of 1Cl+ back to 1Cl confirm the long-term chemical reversibility. DFT calculations indicate only a minor contribution to the electron density (13%) resides on the Pt metal center in 1Cl+, indicating that the 1Cl/1Cl+ oxidation process is extensively ligand-based. Published X-ray crystallographic data show that 1Cl is present in only one structural form, while NMR data on the dissolved crystals revealed the presence of two closely related structural forms in an almost equimolar ratio. Solution-phase EPR spectra of 1Cl+ are consistent with two closely related structural forms in a ratio of about 90:10. The average g value for the frozen solution spectra (2.0567 for the major species) is significantly greater than the 2.0023 expected for a free radical. Crystal field analysis of the EPR spectra leads to an estimate of the 5d(xz) character of around 10% in 1Cl+. Analysis of X-ray absorption fine structure derived from 1Cl+ also supports the presence of a delocalized singly occupied metal molecular orbital with a spin density of approximately 17% on Pt. Accordingly, the considerably larger electron density distribution on the ligand framework (diminished PtIII character) is proposed to contribute to the increased stability of 1Cl+ compared to that of 1+.
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Affiliation(s)
- Ruchika Ojha
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - John F Boas
- School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia
| | - Stephen P Best
- School of Chemistry, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Allan J Canty
- School of Natural Sciences─Chemistry, University of Tasmania, Hobart, TAS 7001, Australia
| | - Peter C Junk
- College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Glen B Deacon
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Alan M Bond
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
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Ojha R, Mason D, Forsyth CM, Deacon GB, Junk PC, Bond AM. Diverse and unexpected outcomes from oxidation of the platinum(II) anticancer agent [Pt{(p-BrC 6F 4)NCH 2CH 2NEt 2}Cl(py)] by hydrogen peroxide. J Inorg Biochem 2021; 218:111360. [PMID: 33711633 DOI: 10.1016/j.jinorgbio.2021.111360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 01/17/2021] [Accepted: 01/17/2021] [Indexed: 12/18/2022]
Abstract
Oxidation of the anti-tumour agent [Pt{(p-BrC6F4)NCH2CH2NEt2}Cl(py)], 1 (py = pyridine) with hydrogen peroxide under a variety of conditions yields a range of organoenamineamidoplatinum(II) compounds [Pt{(p-BrC6F4)NCH=C(X)NEt2}Cl(py)] (X = H, Cl, Br) as well as species with shared occupancy involving H, Cl and Br. Thus, oxidation of the -CH2-CH2- backbone (dehydrogenation) occurs, often accompanied by substitution. Oxidation of 1 with H2O2 in acetone yielded 1:1 co-crystallized [Pt{(p-BrC6F4)NCH=CHNEt2}Cl(py)], 1H and [Pt{(p-BrC6F4)NCH=C(Cl)NEt2}Cl(py)], 1Cl. The former was obtained pure in low yield from the oxidation of 1 with (NH4)2[Ce(NO3)6] in acetone, and the latter was obtained from 1 and H2O2 in CH2Cl2 at near reflux. From the latter reaction under vigorous refluxing [Pt{(p-BrC6F4)NCH=C(Br)NEt2}Cl(py)], 1Br was isolated. In refluxing acetonitrile, oxidation of 1 with H2O2 yielded [Pt{(p-BrC6F4)NCH=C(H0.25Br0.75)NEt2}Cl(py)], 1H0.25Br0.75, in which the alkene is mainly substituted by Br in a dual occupancy. Treatment of 1 with H2O2 and tetrabutylammonium hydroxide in acetone at room temperature formed [Pt{(p-HC6F4)NCH2CH2NEt2}Cl(py)], 2. Oxidation of [Pt{(p-HC6F4)NCH2CH2NEt2}Br(py)], 3 with H2O2 in boiling acetonitrile gave the ligand oxidation product [Pt{(p-HC6F4)NCH=C(Br)NEt2}Br(py)], 3Br. All major products were identified by X-ray crystallography as well as by 1H and 19F NMR spectra. In cases of mixed crystals or dual occupancy compounds, the 19F and 1H NMR spectra showed dissociation into the components in the solution in the same proportions as in isolated crystalline material.
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Affiliation(s)
- Ruchika Ojha
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia
| | - Dayna Mason
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia
| | - Craig M Forsyth
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia
| | - Glen B Deacon
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia.
| | - Peter C Junk
- College of Science & Engineering, James Cook University, Townsville, Qld 4811, Australia.
| | - Alan M Bond
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia.
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Jia C, Deacon GB, Zhang Y, Gao C. Platinum(IV) antitumor complexes and their nano-drug delivery. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213640] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Agnarelli L, Fioco D, Belli Dell' Amico D, Labella L, Marchetti F, Samaritani S. Facile nucleophilic substitution of coordinated acetonitrile in trans-[PtCl4(NCMe)(PPh3)]. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Lipiec E, Ruggeri FS, Benadiba C, Borkowska AM, Kobierski JD, Miszczyk J, Wood BR, Deacon GB, Kulik A, Dietler G, Kwiatek WM. Infrared nanospectroscopic mapping of a single metaphase chromosome. Nucleic Acids Res 2019; 47:e108. [PMID: 31562528 PMCID: PMC6765102 DOI: 10.1093/nar/gkz630] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 07/07/2019] [Accepted: 07/13/2019] [Indexed: 01/27/2023] Open
Abstract
The integrity of the chromatin structure is essential to every process occurring within eukaryotic nuclei. However, there are no reliable tools to decipher the molecular composition of metaphase chromosomes. Here, we have applied infrared nanospectroscopy (AFM-IR) to demonstrate molecular difference between eu- and heterochromatin and generate infrared maps of single metaphase chromosomes revealing detailed information on their molecular composition, with nanometric lateral spatial resolution. AFM-IR coupled with principal component analysis has confirmed that chromosome areas containing euchromatin and heterochromatin are distinguishable based on differences in the degree of methylation. AFM-IR distribution of eu- and heterochromatin was compared to standard fluorescent staining. We demonstrate the ability of our methodology to locate spatially the presence of anticancer drug sites in metaphase chromosomes and cellular nuclei. We show that the anticancer 'rule breaker' platinum compound [Pt[N(p-HC6F4)CH2]2py2] preferentially binds to heterochromatin, forming localized discrete foci due to condensation of DNA interacting with the drug. Given the importance of DNA methylation in the development of nearly all types of cancer, there is potential for infrared nanospectroscopy to be used to detect gene expression/suppression sites in the whole genome and to become an early screening tool for malignancy.
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Affiliation(s)
- Ewelina Lipiec
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
- Institute of Physics, Laboratory of Physics of Living Matter, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Centre for Biospectroscopy and School of Chemistry, Monash University, 3800 Victoria, Australia
| | - Francesco S Ruggeri
- Institute of Physics, Laboratory of Physics of Living Matter, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Department of Chemistry, University of Cambridge, CB21EW, UK
| | - Carine Benadiba
- Institute of Physics, Laboratory of Physics of Living Matter, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Anna M Borkowska
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Jan D Kobierski
- Department of Pharmaceutical Biophysics, Faculty of Pharmacy Jagiellonian University Medical College, PL-31007 Cracow, Poland
| | - Justyna Miszczyk
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Bayden R Wood
- Centre for Biospectroscopy and School of Chemistry, Monash University, 3800 Victoria, Australia
| | - Glen B Deacon
- School of Chemistry, Faculty of Science, Monash University, 3800 Victoria, Australia
| | - Andrzej Kulik
- Institute of Physics, Laboratory of Physics of Living Matter, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Giovanni Dietler
- Institute of Physics, Laboratory of Physics of Living Matter, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Wojciech M Kwiatek
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
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Ravera M, Gabano E, McGlinchey MJ, Osella D. A view on multi-action Pt(IV) antitumor prodrugs. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.025] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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10
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Cisplatin-modified isonicotinic acid as a potential linker in bio-MOFs: synthesis and characterization. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03784-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Belli Dell'Amico D, Labella L, Marchetti F, Ramello S, Samaritani S. Unprecedented pentanuclear mixed-valence Pt (II) -Pt (IV) complex anion in Q 2 [Pt 5 Cl 20 ] salts (Q = TBA, PPN). INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.07.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Czapla-Masztafiak J, Kubas A, Kayser Y, Fernandes DLA, Kwiatek WM, Lipiec E, Deacon GB, Al-Jorani K, Wood BR, Szlachetko J, Sá J. Mechanism of hydrolysis of a platinum(IV) complex discovered by atomic telemetry. J Inorg Biochem 2018; 187:56-61. [PMID: 30055396 DOI: 10.1016/j.jinorgbio.2018.07.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/20/2018] [Accepted: 07/21/2018] [Indexed: 10/28/2022]
Abstract
Herein we report on the hydrolysis mechanism of [Pt{N(p-HC6F4)CH2}2(NC5H5)2(OH)2], a platinum(IV) complex that exhibits anti-cancer properties. Atomic telemetry, an in situ technique based on electron structure sensitive X-ray spectroscopy, revealed that hydrolysis preceded any reduction of the metal center. The obtained results are complemented with 19F NMR measurements and theoretical calculations and support the observation that this PtIV complex does not reduce spontaneously to PtII in HEPES buffer solution at pH 7.4 and after 24 h incubation. These results are of importance for the design of novel Pt-based coordination complexes as well as understanding their behavior under physiological conditions.
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Affiliation(s)
| | - Adam Kubas
- Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Yves Kayser
- Physikalisch-Technische Bundesanstalt (PTB), Abberstr. 2-12, 10587 Berlin, Germany
| | - Daniel L A Fernandes
- Department of Chemistry-Ånsgtröm Laboratory, Uppsala University, 751 20 Uppsala, Sweden
| | - Wojciech M Kwiatek
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Ewelina Lipiec
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Glen B Deacon
- School of Chemistry, Faculty of Science, Monash University, 3800, Victoria, Australia
| | - Khansa Al-Jorani
- Centre for Biospectroscopy, School of Chemistry, Monash University, 3800, Victoria, Australia
| | - Bayden R Wood
- Centre for Biospectroscopy, School of Chemistry, Monash University, 3800, Victoria, Australia
| | - Jakub Szlachetko
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland.
| | - Jacinto Sá
- Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland; Physikalisch-Technische Bundesanstalt (PTB), Abberstr. 2-12, 10587 Berlin, Germany.
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Belli Dell' Amico D, Fioco D, Labella L, Marchetti F, Samaritani S. Clean oxidations by iodobenzene dichloride: Platinum(IV) complexes containing triphenylphosphine. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.01.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Cullinane C, Deacon GB, Drago PR, Erven AP, Junk PC, Luu J, Meyer G, Schmitz S, Ott I, Schur J, Webster LK, Klein A. Synthesis and antiproliferative activity of a series of new platinum and palladium diphosphane complexes. Dalton Trans 2018; 47:1918-1932. [PMID: 29340396 DOI: 10.1039/c7dt04615d] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
New organometallic complexes [M(dppe)(R)2] {where M = Pt or Pd, dppe = 1,2-bis(diphenylphosphano)ethane, and R = C6F4H-x (x = 6,5,4), C6F3H2-3,5, C6F3H2-5,6, C6F3H2-3,6, C6F4(OMe)-4, and C6F4(cyclo-C5H10N)-4, the numbers x refer to the positions of the protons in the polyfluoroaryl ligands} were synthesised either through transmetalation from the dichlorido complexes [M(dppe)Cl2] or through ligand exchange using [M(diene)Cl2] precursor complexes with diene = 1,5-cyclooctadiene (cod) or 1,5-hexadiene (hex). Alternatively, [M(dppX)Cl(R)] complexes with dppX = dppm (1,1-bis(diphenylphosphano)methane), dppe, dppp (1,3-bis(diphenylphosphano)propane), and dppb (1,4-bis(diphenylphosphano)butane) were prepared in decarboxylation reactions from thallium(i) carboxylates Tl(O2CR). The different preparative methods were compared in terms of yield and purity. Structural and spectroscopic data are reported for the new dppX- and diene-M(R)2 complexes. Antiproliferative activity was investigated for these new complexes against the HT-29 (colon carcinoma) and MCF-7 (breast adenocarcinoma) cell lines, and the active compounds of this first series together with organometallic dppX or hex PtII or PdII complexes were then included in cell tests using L1210 (leukaemia cells) and the cisplatin-resistant L1210/DDP cell line. Remarkably, promising antiproliferative results were found for a few PtII and PdII complexes, while structurally closely related compounds were essentially nontoxic.
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Affiliation(s)
- Carleen Cullinane
- Peter MacCallum Cancer Center, 305 Grattan Street, Melbourne Vic 3000, Australia and Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Melbourne Vic 3052, Australia
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Haribabu J, Tamizh MM, Balachandran C, Arun Y, Bhuvanesh NSP, Endo A, Karvembu R. Synthesis, structures and mechanistic pathways of anticancer activity of palladium(ii) complexes with indole-3-carbaldehyde thiosemicarbazones. NEW J CHEM 2018. [DOI: 10.1039/c7nj03743k] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Palladium(ii) complexes featuring bidentate heterocyclic thiosemicarbazones have been synthesized, characterized and evaluated for their biomolecular interactions. The complexes induced in vitro anticancer activity through apoptosis.
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Affiliation(s)
- Jebiti Haribabu
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli – 620015
- India
| | - Manoharan Muthu Tamizh
- Department of Chemistry
- Siddha Central Research Institute
- Central Council for Research in Siddha
- Chennai – 600106
- India
| | - Chandrasekar Balachandran
- Division of Natural Drug Discovery
- Institute of Natural Medicine
- University of Toyama
- Toyama 930-0194
- Japan
| | - Yuvaraj Arun
- Organic Chemistry Division
- CSIR-Central Leather Research Institute
- Chennai – 600020
- India
| | | | - Akira Endo
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
| | - Ramasamy Karvembu
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli – 620015
- India
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Li LJ, Yan QQ, Liu GJ, Yuan Z, Lv ZH, Fu B, Han YJ, Du JL. Synthesis characterization and cytotoxicity studies of platinum(II) complexes with reduced amino pyridine schiff base and its derivatives as ligands. Biosci Biotechnol Biochem 2017; 81:1081-1089. [PMID: 28290776 DOI: 10.1080/09168451.2016.1259550] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A series of reduced amino pyridine Schiff base platinum(II) complexes were prepared as potential anticancer drugs, and characterized by NMR, IR spectroscopy, elemental analysis, and molar conductivity. UV and CD results showed the binding mode between these compounds and salmon sperm DNA may be intercalation. The cytotoxicity of these complexes was validated against A549, Hela, and MCF-7 cell lines by MTT assay. Some complexes exhibited better cytotoxic activity than cisplatin against Hela and MCF-7 cell lines.
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Affiliation(s)
- Li-Jun Li
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Qin-Qin Yan
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Guo-Jun Liu
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Zhen Yuan
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Zhen-Hua Lv
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Bin Fu
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Yan-Jun Han
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
| | - Jian-Long Du
- a Chemical Biology Key Laboratory of Hebei Province , Hebei University , Baoding , P.R. China
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Synthesis, characterization, and cytotoxicity of Pt(IV) complexes containing 1,10-phenanthroline and 2,2′-bipyridine and diaminocyclohexane ligands. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0125-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Escolà A, Crespo M, López C, Quirante J, Jayaraman A, Polat IH, Badía J, Baldomà L, Cascante M. On the stability and biological behavior of cyclometallated Pt(IV) complexes with halido and aryl ligands in the axial positions. Bioorg Med Chem 2016; 24:5804-5815. [PMID: 27670096 DOI: 10.1016/j.bmc.2016.09.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 09/13/2016] [Accepted: 09/14/2016] [Indexed: 12/22/2022]
Abstract
A series of cyclometallated platinum(IV) compounds (3a, 3a' and 3b') with a meridional [C,N,N'] terdentate ligand, featuring an halido and an aryl group in the axial positions has been evaluated for electrochemical reduction and preliminary biological behavior against a panel of human adenocarcinoma (A-549 lung, HCT-116 colon, and MCF-7 breast) cell lines and the normal bronquial epithelial BEAS-2B cells. Cathodic reduction potentials (shifting from -1.463 to -1.570V) reveal that the platinum(IV) compounds under study would be highly reluctant to be reduced in a biological environment. Actually ascorbic acid was not able to reduce complex 3a', the most prone to be reduced according its reduction potential, over a period of one week. These results suggest an intrinsic activity for the investigated platinum(IV) complexes (3a, 3a' and 3b'), which exhibit a remarkable cytotoxicity effectiveness (with IC50 values in the low micromolar range), even greater than that of cisplatin. The IC50 for A-549 lung cells and clog P values were found to follow the same trend: 3b'>3a'>3a. However, no correlation was observed between reduction potential and in vitro activity. As a representative example, cyclometallated platinum(IV) compound 3a', exercise its antiproliferative activity directly over non-microcytic A-549 lung cancer cells through a mixture of cell cycle arrest (13% arrest at G1 phase and 46% arrest at G2 phase) and apoptosis induction (increase of early apoptosis by 30 times with regard to control). To gain further insights into the mode of action of the investigated platinum(IV) complexes, drug uptake, cathepsin B inhibition and ROS generation were also evaluated. Interestingly an increased ROS generation could be related with the antiproliferative activity of the cyclometallated platinum(IV) series under study in the cisplatin-resistant A-549 lung and HCT-116 cancer cell lines.
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Affiliation(s)
- Anna Escolà
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Margarita Crespo
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Spain.
| | - Concepción López
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Josefina Quirante
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Spain; Laboratori de Química Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain.
| | - Anusha Jayaraman
- Department of Biochemistry and Molecular Biology, Faculty of Biology and IDIBAPS, Unit Associated with CSIC, Diagonal 643, 08028 Barcelona, Spain
| | - Ibrahim H Polat
- Department of Biochemistry and Molecular Biology, Faculty of Biology and IDIBAPS, Unit Associated with CSIC, Diagonal 643, 08028 Barcelona, Spain
| | - Josefa Badía
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Spain; Departament de Bioquímica i Fisiologia, Secció de Bioquímica i Biologia Molecular, Facultat de Farmàcia, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain
| | - Laura Baldomà
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Spain; Departament de Bioquímica i Fisiologia, Secció de Bioquímica i Biologia Molecular, Facultat de Farmàcia, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain
| | - Marta Cascante
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Spain; Department of Biochemistry and Molecular Biology, Faculty of Biology and IDIBAPS, Unit Associated with CSIC, Diagonal 643, 08028 Barcelona, Spain
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20
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Vernooij R, Joshi T, Shaili E, Kubeil M, Appadoo DT, Izgorodina EI, Graham B, Sadler PJ, Wood BR, Spiccia L. Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N3)2(OH)2(py)2], a Pt(IV) Diazido Anticancer Prodrug Candidate. Inorg Chem 2016; 55:5983-92. [PMID: 27257848 PMCID: PMC4916484 DOI: 10.1021/acs.inorgchem.6b00476] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Indexed: 12/13/2022]
Abstract
We report a detailed study of a promising photoactivatable metal-based anticancer prodrug candidate, trans,trans,trans-[Pt(N3)2(OH)2(py)2] (C1; py = pyridine), using vibrational spectroscopic techniques. Attenuated total reflection Fourier transform infrared (ATR-FTIR), Raman, and synchrotron radiation far-IR (SR-FIR) spectroscopies were applied to obtain highly resolved ligand and Pt-ligand vibrations for C1 and its precursors (trans-[Pt(N3)2(py)2] (C2) and trans-[PtCl2(py)2] (C3)). Distinct IR- and Raman-active vibrational modes were assigned with the aid of density functional theory calculations, and trends in the frequency shifts as a function of changing Pt coordination environment were determined and detailed for the first time. The data provide the ligand and Pt-ligand (azide, hydroxide, pyridine) vibrational signatures for C1 in the mid- and far-IR region, which will provide a basis for the better understanding of the interaction of C1 with biomolecules.
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Affiliation(s)
- Robbin
R. Vernooij
- School of Chemistry and Centre for Biospectroscopy, Monash University, Melbourne, 3800 VIC, Australia
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Tanmaya Joshi
- School of Chemistry and Centre for Biospectroscopy, Monash University, Melbourne, 3800 VIC, Australia
| | - Evyenia Shaili
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Manja Kubeil
- School of Chemistry and Centre for Biospectroscopy, Monash University, Melbourne, 3800 VIC, Australia
| | | | - Ekaterina I. Izgorodina
- School of Chemistry and Centre for Biospectroscopy, Monash University, Melbourne, 3800 VIC, Australia
| | - Bim Graham
- Monash
Institute of Pharmaceutical Sciences, Monash
University, Melbourne, 3052 VIC, Australia
| | - Peter J. Sadler
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Bayden R. Wood
- School of Chemistry and Centre for Biospectroscopy, Monash University, Melbourne, 3800 VIC, Australia
| | - Leone Spiccia
- School of Chemistry and Centre for Biospectroscopy, Monash University, Melbourne, 3800 VIC, Australia
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21
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Lu Y, Hou X, Zhao X, Liu M, Shen F, Ren Y, Liu Y, Huo S, Shen S. Kinetics and mechanism of oxidation of 3,6-dioxa-1,8-octanedithiol and dl-dithiothreitol by a platinum(IV) complex. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-9995-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Macias FJ, Deo KM, Pages BJ, Wormell P, Clegg JK, Zhang Y, Li F, Zheng G, Sakoff J, Gilbert J, Aldrich-Wright JR. Synthesis and Analysis of the Structure, Diffusion and Cytotoxicity of Heterocyclic Platinum(IV) Complexes. Chemistry 2015; 21:16990-7001. [PMID: 26439874 DOI: 10.1002/chem.201502159] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Indexed: 11/10/2022]
Abstract
We have developed six dihydroxidoplatinum(IV) compounds with cytotoxic potential. Each derived from active platinum(II) species, these complexes consist of a heterocyclic ligand (HL) and ancillary ligand (AL) in the form [Pt(HL)(AL)(OH)2](2+), where HL is a methyl-functionalised variant of 1,10-phenanthroline and AL is the S,S or R,R isomer of 1,2-diaminocyclohexane. NMR characterisation and X-ray diffraction studies clearly confirmed the coordination geometry of the octahedral platinum(IV) complexes. The self-stacking of these complexes was determined using pulsed gradient stimulated echo nuclear magnetic resonance. The self-association behaviour of square planar platinum(II) complexes is largely dependent on concentration, whereas platinum(IV) complexes do not aggregate under the same conditions, possibly due to the presence of axial ligands. The cytotoxicity of the most active complex, exhibited in several cell lines, has been retained in the platinum(IV) form.
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Affiliation(s)
- Freddy J Macias
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia)
| | - Krishant M Deo
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia)
| | - Benjamin J Pages
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia)
| | - Paul Wormell
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia)
| | - Jack K Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane St. Lucia, QLD 4072 (Australia)
| | - Yingjie Zhang
- Australian Nuclear Science and Technology Organisation, Kirrawee DC, NSW 2232 (Australia)
| | - Feng Li
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia)
| | - Gang Zheng
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia)
| | | | - Jayne Gilbert
- Calvary Mater Newcastle, Waratah, NSW 2298 (Australia)
| | - Janice R Aldrich-Wright
- Nanoscale Organisation and Dynamics Group, Western Sydney University, Campbelltown, NSW 2560 (Australia).
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23
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Johnstone TC, Alexander SM, Wilson JJ, Lippard SJ. Oxidative halogenation of cisplatin and carboplatin: synthesis, spectroscopy, and crystal and molecular structures of Pt(IV) prodrugs. Dalton Trans 2015; 44:119-29. [PMID: 25367395 DOI: 10.1039/c4dt02627f] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A series of Pt(IV) prodrugs has been obtained by oxidative halogenation of either cisplatin or carboplatin. Iodobenzene dichloride is a general reagent that cleanly provides prodrugs bearing axial chlorides without the need to prepare intervening Pt(IV) intermediates or handle chlorine gas. Elemental bromine and iodine afford Pt(IV) compounds as well, although in the case of the iodine-mediated oxidation of carboplatin, an amido-bridged Pt(IV) side product also formed. A detailed analysis of the changes in spectroscopic and structural parameters induced by varying the axial halide is presented. A number of recurring motifs are observed in the solid state structures of these compounds.
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Affiliation(s)
- Timothy C Johnstone
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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24
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Ojha R, Nafady A, Shiddiky MJA, Mason D, Boas JF, Torriero AAJ, Bond AM, Deacon GB, Junk PC. Conditions Favoring the Formation of Monomeric PtIIIDerivatives in the Electrochemical Oxidation oftrans-[PtII{(p-BrC6F4)NCH2CH2NEt2}Cl(py)]. ChemElectroChem 2015. [DOI: 10.1002/celc.201402447] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Liang B, Huo S, Ren Y, Sun S, Cao Z, Shen S. A platinum(IV)-based metallointercalator: synthesis, cytotoxicity, and redox reactions with thiol-containing compounds. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9886-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Escolà A, Crespo M, Quirante J, Cortés R, Jayaraman A, Badía J, Baldomà L, Calvet T, Font-Bardía M, Cascante M. Exploring the Scope of [Pt2(4-FC6H4)4(μ-SEt2)2] as a Precursor for New Organometallic Platinum(II) and Platinum(IV) Antitumor Agents. Organometallics 2014. [DOI: 10.1021/om5000908] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Anna Escolà
- Departament de Química Inorgànica,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Spain
| | - Margarita Crespo
- Departament de Química Inorgànica,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Spain
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain
| | - Josefina Quirante
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain
- Laboratori de Química
Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Avenida Joan XXIII, s/n, 08028 Barcelona, Spain
| | - Roldán Cortés
- Department of Biochemistry
and Molecular Biology, Faculty of Biology, Universitat de Barcelona, and IDIBAPS, Unit Associated with CSIC, Diagonal 643, 08028 Barcelona, Spain
| | - Anusha Jayaraman
- Department of Biochemistry
and Molecular Biology, Faculty of Biology, Universitat de Barcelona, and IDIBAPS, Unit Associated with CSIC, Diagonal 643, 08028 Barcelona, Spain
| | - Josefa Badía
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain
- Departament de Bioquímica
i Biologia Molecular, Facultat de Farmàcia, Avenida Joan XXIII s/n, 08028 Barcelona, Spain
| | - Laura Baldomà
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain
- Departament de Bioquímica
i Biologia Molecular, Facultat de Farmàcia, Avenida Joan XXIII s/n, 08028 Barcelona, Spain
| | - Teresa Calvet
- Departament
de Cristal·lografia, Mineralogia i Dipòsits Minerals,
Facultat de Geologia, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
| | - Mercè Font-Bardía
- Departament
de Cristal·lografia, Mineralogia i Dipòsits Minerals,
Facultat de Geologia, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
- Unitat de Difracció de Raigs-X, Centre Científic i Tecnològic de la Universitat de Barcelona (CCiTUB), Solé
i Sabarís, 1-3, 08028 Barcelona, Spain
| | - Marta Cascante
- Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain
- Department of Biochemistry
and Molecular Biology, Faculty of Biology, Universitat de Barcelona, and IDIBAPS, Unit Associated with CSIC, Diagonal 643, 08028 Barcelona, Spain
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27
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Wilson JJ, Lippard SJ. Synthetic methods for the preparation of platinum anticancer complexes. Chem Rev 2013; 114:4470-95. [PMID: 24283498 DOI: 10.1021/cr4004314] [Citation(s) in RCA: 498] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Justin J Wilson
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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28
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Medrano MÁ, Álvarez-Valdés A, Perles J, Lloret-Fillol J, Muñoz-Galván S, Carnero A, Navarro-Ranninger C, Quiroga AG. Oxidation of anticancer Pt(ii) complexes with monodentate phosphane ligands: towards stable but active Pt(iv) prodrugs. Chem Commun (Camb) 2013; 49:4806-8. [DOI: 10.1039/c3cc38416k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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29
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Varbanov HP, Jakupec MA, Roller A, Jensen F, Galanski M, Keppler BK. Theoretical investigations and density functional theory based quantitative structure-activity relationships model for novel cytotoxic platinum(IV) complexes. J Med Chem 2012; 56:330-44. [PMID: 23214999 PMCID: PMC3557934 DOI: 10.1021/jm3016427] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Octahedral platinum(IV) complexes are promising candidates in the fight against cancer. In order to rationalize the further development of this class of compounds, detailed studies on their mechanisms of action, toxicity, and resistance must be provided and structure-activity relationships must be drawn. Herein, we report on theoretical and QSAR investigations of a series of 53 novel bis-, tris-, and tetrakis(carboxylato)platinum(IV) complexes, synthesized and tested for cytotoxicity in our laboratories. The hybrid DFT functional wb97x was used for optimization of the structure geometry and calculation of the descriptors. Reliable and robust QSAR models with good explanatory and predictive properties were obtained for both the cisplatin sensitive cell line CH1 and the intrinsically cisplatin resistant cell line SW480, with a set of four descriptors.
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Affiliation(s)
- Hristo P Varbanov
- Institute of Inorganic Chemistry, University of Vienna , Währinger Strasse 42, A-1090 Vienna, Austria
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