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Palma E, Santos JF, Fernandes C, Paulo A. DNA-Targeted Complexes of Tc and Re for Biomedical Applications. Chemistry 2024; 30:e202303591. [PMID: 38038361 DOI: 10.1002/chem.202303591] [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: 10/30/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/02/2023]
Abstract
Due to their favorable chemical features, Re and Tc complexes have been widely used for the development of new therapeutic agents and imaging probes to solve problems of biomedical relevance. This review provides an update of the most relevant research efforts towards the development of novel cancer theranostic agents using Re and Tc-based compounds interacting with specific DNA structures. This includes a variety of homometallic complexes, namely those containing M(CO)3 (M=Re, Tc) moieties, that exhibit different modes of interaction with DNA, such as covalent binding, intercalation, groove binding or G-quadruplex DNA binding. Additionally, heterometallic complexes, designed to potentiate synergistic effects of different metal centers to improve DNA-targeting, cytotoxicity and fluorescence properties, are also reviewed. Particular attention is also given to 99m Tc- and 188 Re-labeled oligonucleotides that have been widely explored to develop imaging and therapeutic radiopharmaceuticals through the in vivo hybridization with a specific complementary DNA or RNA target sequence to provide useful molecular tools in precision medicine for cancer diagnosis and treatment. Finally, the need for further improvement of DNA-targeted Re and Tc-based compounds as potential therapeutic and diagnostic agents is highlighted, and future directions are discussed.
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Affiliation(s)
- Elisa Palma
- C2TN - Centro de Ciências e Tecnologias, Nucleares Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - Joana F Santos
- C2TN - Centro de Ciências e Tecnologias, Nucleares Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - Célia Fernandes
- C2TN - Centro de Ciências e Tecnologias, Nucleares Instituto Superior Técnico, Universidade de Lisboa, Portugal
- DECN - Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - António Paulo
- C2TN - Centro de Ciências e Tecnologias, Nucleares Instituto Superior Técnico, Universidade de Lisboa, Portugal
- DECN - Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal
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2
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Capper MS, Packman H, Rehkämper M. Rhenium-Based Complexes and in Vivo Testing: A Brief History. Chembiochem 2020; 21:2111-2115. [PMID: 32196894 PMCID: PMC7496976 DOI: 10.1002/cbic.202000117] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/19/2020] [Indexed: 12/12/2022]
Abstract
The success of metal-based anticancer therapeutics in the treatment of cancer is best exemplified by cisplatin. Currently used in 32/78 cancer regimens, metal-based drugs have a clear role in cancer therapy. Despite this, metal-based anticancer therapeutics are not without drawbacks, with issues such as toxic side effects and the development of resistance mechanisms. This has led to investigations of other metal-based drug candidates such as auranofin, a gold-based drug candidate as well as ruthenium-based candidates, NAMI-A, NKP-1339 and TLD-1433. All are currently undergoing clinical trials. Another class of complexes under study are rhenium-based; such complexes have undergone extensive in vitro testing but only nine have been reported to display antitumour in vivo activity, which is a necessary step before entering clinical trials. This review will document, chronologically, the rhenium-based drug candidates that have undergone in vivo testing and the outlook for such complexes.
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Affiliation(s)
- Miles S Capper
- Department of Earth Science and Engineering, Imperial College London, Royal School of Mines, Prince Consort Rd, Kensington London, SW7 2AZ, UK
| | - Hollie Packman
- Department of Earth Science and Engineering, Imperial College London, Royal School of Mines, Prince Consort Rd, Kensington London, SW7 2AZ, UK
| | - Mark Rehkämper
- Department of Earth Science and Engineering, Imperial College London, Royal School of Mines, Prince Consort Rd, Kensington London, SW7 2AZ, UK
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3
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Polokhina KV, Kytova DE, Shtemenko AV, Shtemenko NI. Cytotoxic activity of the cluster rhenium compound with ?-alanine ligands. UKRAINIAN BIOCHEMICAL JOURNAL 2020. [DOI: 10.15407/ubj92.01.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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4
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Konkankit CC, Lovett J, Harris HH, Wilson JJ. X-Ray fluorescence microscopy reveals that rhenium(i) tricarbonyl isonitrile complexes remain intact in vitro. Chem Commun (Camb) 2020; 56:6515-6518. [DOI: 10.1039/d0cc02451a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An endoplasmic reticulum stress-inducing rhenium isonitrile complex was investigated for its axial ligand stability in living cells using X-ray fluorescence microscopy.
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Affiliation(s)
| | - James Lovett
- Department of Chemistry
- The University of Adelaide
- Australia
| | - Hugh H. Harris
- Department of Chemistry
- The University of Adelaide
- Australia
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology
- Cornell University
- Ithaca
- USA
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5
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Mandal S, Mallick S, Garu P, Chowdhury J, Samadder A, Das J, Khuda-Bukhsh AR, Chattopadhyay S. The first examples of triply bonded dirhenium(II,II) complexes that contain bis(diphenylphosphino)methane and dithiocarbamato ligands: spectroscopic, structural, cytotoxicity and computational studies. NEW J CHEM 2020. [DOI: 10.1039/c9nj06122c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis, structure and properties of the hitherto unreported triply bonded dirhenium(II,II) dithiocarbamato complexes have been reported.
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Affiliation(s)
- Suman Mandal
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | - Suman Mallick
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | - Purnananda Garu
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | | | | | - Jayeeta Das
- Department of Zoology
- University of Kalyani
- Nadia 741235
- India
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6
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Collery P, Desmaele D, Vijaykumar V. Design of Rhenium Compounds in Targeted Anticancer Therapeutics. Curr Pharm Des 2019; 25:3306-3322. [DOI: 10.2174/1381612825666190902161400] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/30/2019] [Indexed: 12/25/2022]
Abstract
Background:
Many rhenium (Re) complexes with potential anticancer properties have been synthesized
in the recent years with the aim to overcome the clinical limitations of platinum agents. Re(I) tricarbonyl
complexes are the most common but Re compounds with higher oxidation states have also been investigated, as
well as hetero-metallic complexes and Re-loaded self-assembling devices. Many of these compounds display
promising cytotoxic and phototoxic properties against malignant cells but all Re compounds are still at the stage
of preclinical studies.
Methods:
The present review focused on the rhenium based cancer drugs that were in preclinical and clinical
trials were examined critically. The detailed targeted interactions and experimental evidences of Re compounds
reported by the patentable and non-patentable research findings used to write this review.
Results:
In the present review, we described the most recent and promising rhenium compounds focusing on their
potential mechanism of action including, phototoxicity, DNA binding, mitochondrial effects, oxidative stress
regulation or enzyme inhibition. Many ligands have been described that modulating the lipophilicity, the luminescent
properties, the cellular uptake, the biodistribution, and the cytotoxicity, the pharmacological and toxicological
profile.
Conclusion:
Re-based anticancer drugs can also be used in targeted therapies by coupling to a variety of biologically
relevant targeting molecules. On the other hand, combination with conventional cytotoxic molecules, such
as doxorubicin, allowed to take into profit the targeting properties of Re for example toward mitochondria.
Through the example of the diseleno-Re complex, we showed that the main target could be the oxidative status,
with a down-stream regulation of signaling pathways, and further on selective cell death of cancer cells versus
normal cells.
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Affiliation(s)
- Philippe Collery
- Society for the Coordination of Therapeutic Researches, 20220 Algajola, France
| | - Didier Desmaele
- Institut Galien, Universite Paris-Saclay, 92296 Chatenay-Malabry, France
| | - Veena Vijaykumar
- Biotechnology Department, REVA University, Bangalore, 560064, India
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Bauer EB, Haase AA, Reich RM, Crans DC, Kühn FE. Organometallic and coordination rhenium compounds and their potential in cancer therapy. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.014] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Konkankit CC, King AP, Knopf KM, Southard TL, Wilson JJ. In Vivo Anticancer Activity of a Rhenium(I) Tricarbonyl Complex. ACS Med Chem Lett 2019; 10:822-827. [PMID: 31098006 DOI: 10.1021/acsmedchemlett.9b00128] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/16/2019] [Indexed: 12/22/2022] Open
Abstract
The rhenium(I) complex fac-[Re(CO)3(2,9-dimethyl-1,10-phenanthroline)(OH2)]+ (1) was previously shown to exhibit potent in vitro anticancer activity in a manner distinct from conventional platinum-based drugs (J. Am. Chem. Soc. 2017, 139, 14302-14314). In this study, we report further efforts to explore its aqueous speciation and antitumor activity. The cellular uptake of 1 was measured in A2780 and cisplatin-resistant A2780CP70 ovarian cancer cells by inductively coupled plasma mass spectrometry, revealing similar uptake efficiency in both cell lines. High accumulation in the mitochondria was observed, contradicting prior fluorescence microscopy studies. The luminescence of 1 is highly dependent on pH and coordination environment, making fluorescence microscopy somewhat unreliable for determining compound localization. The in vivo anticancer activity of 1 was evaluated in mice bearing patient-derived ovarian cancer tumor xenografts. These studies conclusively show that 1 is capable of inhibiting tumor growth, providing further credibility for the use of these compounds as anticancer agents.
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Affiliation(s)
- Chilaluck C. Konkankit
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - A. Paden King
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Kevin M. Knopf
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Teresa L. Southard
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, United States
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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9
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Frei A, Mokolokolo PP, Bolliger R, Braband H, Tsosane MS, Brink A, Roodt A, Alberto R. Self-Assembled Multinuclear Complexes Incorporating 99m Tc. Chemistry 2018; 24:10397-10402. [PMID: 29672957 DOI: 10.1002/chem.201800600] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/18/2018] [Indexed: 12/30/2022]
Abstract
Multinuclear complexes or clusters are rarely investigated in medicinal inorganic chemistry although they represent structural intermediates between molecules and nanomaterials. We present in this report two strategies towards 99m Tc-containing clusters. In a pre-assembly approach, the preformed but incomplete cluster fragment [Re3 (μ2 -OH)3 (μ3 -OH)(CO)9 ]- reacts with [99m Tc(CO)3 ]+ to the highly stable [99m TcRe3 (μ3 -OH)4 (CO)12 ] cube. The same structure self-assembles when reacting the mononuclear Re and 99m Tc precursors in one pot. Integrating the coordinating OH groups from Schiff bases in this concept leads straight to dinuclear, mixed-metal complexes of the type [99m TcRe(μ2 -O^N-R1 )2 (CO)6 ] in quantitative yields. Both strategies are unprecedented and open a future path towards clusters, incorporating a 99m Tc radiolabel while being decorated with targeting or cytotoxic moieties.
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Affiliation(s)
- Angelo Frei
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
| | - Pennie P Mokolokolo
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Robin Bolliger
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
| | - Mampotso S Tsosane
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Alice Brink
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Andreas Roodt
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
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10
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Daum S, Babiy S, Konovalova H, Hofer W, Shtemenko A, Shtemenko N, Janko C, Alexiou C, Mokhir A. Tuning the structure of aminoferrocene-based anticancer prodrugs to prevent their aggregation in aqueous solution. J Inorg Biochem 2018; 178:9-17. [DOI: 10.1016/j.jinorgbio.2017.08.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/24/2017] [Accepted: 08/30/2017] [Indexed: 11/27/2022]
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11
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Konkankit CC, Marker SC, Knopf KM, Wilson JJ. Anticancer activity of complexes of the third row transition metals, rhenium, osmium, and iridium. Dalton Trans 2018; 47:9934-9974. [DOI: 10.1039/c8dt01858h] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A summary of recent developments on the anticancer activity of complexes of rhenium, osmium, and iridium is described.
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Affiliation(s)
| | - Sierra C. Marker
- Department of Chemistry and Chemical Biology
- Cornell University
- Ithaca
- USA
| | - Kevin M. Knopf
- Department of Chemistry and Chemical Biology
- Cornell University
- Ithaca
- USA
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology
- Cornell University
- Ithaca
- USA
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12
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A survey of the mechanisms of action of anticancer transition metal complexes. Future Med Chem 2016; 8:2263-2286. [DOI: 10.4155/fmc-2016-0153] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Metal complexes have been the subject of numerous investigations in oncology but, despite the plethora of newly synthesized compounds, their precise mechanisms of action remain generally unknown or, for the best, incompletely determined. The continuous development of efficient and sensitive techniques in analytical chemistry and molecular biology gives scientists new tools to gather information on how metal complexes can be effective toward cancer. This review focuses on recent findings about the anticancer mechanism of action of metal complexes and how the ligands can be used to tune their pharmacological and physicochemical properties.
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13
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Golichenko AA, Kravchenko AV, Omelchenko IV, Chudak DM, Starodub VA, Barszcz B, Shtemenko AV. Crystal structure of bis-(ethyl-enedi-thio)-tetra-thia-fulvalenium μ2-acetato-bis-[tri-bromido-rhenate(III)] 1,1,2-tri-chloro-ethane hemisolvate. Acta Crystallogr E Crystallogr Commun 2016; 72:712-5. [PMID: 27308025 PMCID: PMC4908526 DOI: 10.1107/s2056989016006058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 04/11/2016] [Indexed: 11/16/2022]
Abstract
The asymmetric unit of the title salt, (C10H8S8)[Re2Br6(CH3COO)]·0.5C2H3Cl3, contains one bis-(ethyl-enedi-thio)-tetra-thia-fulvalene (ET) radical cation, one μ2-acetato-bis-[tri-bromido-rhenate(III)] anion and a 1,1,2-tri-chloro-ethane mol-ecule with half-occupancy disordered about a twofold rotation axis. The tetra-thia-fulvalene fragment adopts an almost planar configuration typical of the ET radical cation. The C atoms of both ethyl-enedi-thio fragments in the cation are disordered over two orientations with occupancy factors 0.65:0.35 and 0.77:0.23. In the anion, six Br atoms and a μ2-acetate ligand form a strongly distorted cubic O2Br6 coordination polyhedron around the Re2 dinuclear centre. In the crystal, centrosymmetrically related ET cations and Re2O2Br6 anions are linked into dimers by π-π stacking inter-actions [centroid-to-centroid distance = 3.826 (8) Å] and by pairs of additional Re⋯Br contacts [3.131 (3) Å], respectively. The dimers are further packed into a three-dimensional network by non-directional inter-ionic electrostatic forces and by C-H⋯Br and C-H⋯S hydrogen bonds. The disordered 1,1,2-tri-chloro-ethane mol-ecules occupy solvent-accessible channels along the b axis.
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Affiliation(s)
- Alexander A. Golichenko
- Department of Inorganic Chemistry, Ukrainian State University of Chemical Technology, Gagarin Ave. 8, Dnipropetrovsk 49005, Ukraine
| | - Andrey V. Kravchenko
- Applied Chemistry Department, V. N. Karazin Kharkiv National University, 4 Svoboda Square, Kharkiv, 61022, Ukraine
| | - Irina V. Omelchenko
- SSI "Institute for Single Crystals" NAS of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine
| | - Denis M. Chudak
- Applied Chemistry Department, V. N. Karazin Kharkiv National University, 4 Svoboda Square, Kharkiv, 61022, Ukraine
| | | | - Boleslaw Barszcz
- Institute of Molecular Physics, Polish Academy of Sciences, 60-179 Poznan, Poland
| | - Alexander V. Shtemenko
- Department of Inorganic Chemistry, Ukrainian State University of Chemical Technology, Gagarin Ave. 8, Dnipropetrovsk 49005, Ukraine
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14
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Synthesis and X-ray crystal structure of the dirhenium complex Re2(i-C3H7COO)4Cl2 and its interactions with the DNA purine nucleobases. J Inorg Biochem 2015; 153:114-120. [DOI: 10.1016/j.jinorgbio.2015.06.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 06/12/2015] [Accepted: 06/14/2015] [Indexed: 11/18/2022]
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15
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Golichenko AA, Shtemenko AV. Crystal structure of di-μ-isobutyrato-κ(4) O:O'-bis-[cis-di-chlorido-(dimethyl sulfoxide-κS)rhenium(III)]. Acta Crystallogr E Crystallogr Commun 2015; 71:1219-21. [PMID: 26594411 PMCID: PMC4647422 DOI: 10.1107/s2056989015017429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 09/17/2015] [Indexed: 05/30/2023]
Abstract
The title compound, [Re2(C3H7COO)2Cl4{(CH3)2SO}2], comprises binuclear complex mol-ecules [Re-Re = 2.24502 (13) Å] involving cis-oriented double carboxyl-ate bridges, four equatorial chloride ions and two weakly bonded O atoms from dimethyl sulfoxide ligands in the axial positions at the Re(III) atoms. In the crystal, mol-ecules are linked into corrugated layers parallel to (101) by very weak C-H⋯Cl and C-H⋯O hydrogen-bonding inter-actions. C-H⋯Cl hydrogen bonding provides the links between layers to consolidate a three-dimensional framework.
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Affiliation(s)
- Alexander A. Golichenko
- Department of Inorganic Chemistry, Ukrainian State University of Chemical Technology, Gagarin Ave. 8, Dnipropetrovsk 49005, Ukraine
| | - Alexander V. Shtemenko
- Department of Inorganic Chemistry, Ukrainian State University of Chemical Technology, Gagarin Ave. 8, Dnipropetrovsk 49005, Ukraine
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16
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Ebrahimi T, Pirasteh H, Rezakhaniha B, Dormanesh B, Rabati RG, Yahaghi E, Mokarizadeh A. RETRACTED ARTICLE: The value of U-NGAL expression as a potential prognostic biomarker in patients with renal cancer after neoadjuvant chemotherapy with cisplatin. Tumour Biol 2015; 37:10.1007/s13277-015-3680-z. [PMID: 26109001 DOI: 10.1007/s13277-015-3680-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Tahereh Ebrahimi
- Genetic and Agricultural Biotechnology, Institute of Tabarestan, Mazandaran, Iran
| | - Hamid Pirasteh
- Department of Nephrology, AJA University of Medical Sciences, Tehran, Iran
| | - Bijan Rezakhaniha
- Department of Urology, Imam Reza Hospital, AJA University of Medical Sciences, Tehran, Iran
| | - Banafshe Dormanesh
- Department of Pediatric Nephrology, AJA University of Medical Sciences, Tehran, Iran
| | | | - Emad Yahaghi
- Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Aram Mokarizadeh
- Cellular & Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran.
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Antioxidant properties of cluster rhenium compounds and their influence of erythropoiesis of rats with Guerin carcinoma. UKRAINIAN BIOCHEMICAL JOURNAL 2015. [DOI: 10.15407/ubj87.01.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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18
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Lando DY, Fridman AS, Chang CL, Grigoryan IE, Galyuk EN, Murashko ON, Chen CC, Hu CK. Determination of melting temperature and temperature melting range for DNA with multi-peak differential melting curves. Anal Biochem 2015; 479:28-36. [PMID: 25640587 DOI: 10.1016/j.ab.2015.01.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 01/09/2015] [Accepted: 01/22/2015] [Indexed: 01/05/2023]
Abstract
Many factors that change the temperature position and interval of the DNA helix-coil transition often also alter the shape of multi-peak differential melting curves (DMCs). For DNAs with a multi-peak DMC, there is no agreement on the most useful definition for the melting temperature, Tm, and temperature melting width, ΔT, of the entire DNA transition. Changes in Tm and ΔT can reflect unstable variation of the shape of the DMC as well as alterations in DNA thermal stability and heterogeneity. Here, experiments and computer modeling for DNA multi-peak DMCs varying under different factors allowed testing of several methods of defining Tm and ΔT. Indeed, some of the methods give unreasonable "jagged" Tm and ΔT dependences on varying relative concentration of DNA chemical modifications (rb), [Na(+)], and GC content. At the same time, Tm determined as the helix-coil transition average temperature, and ΔT, which is proportional to the average absolute temperature deviation from this temperature, are suitable to characterize multi-peak DMCs. They give smoothly varying theoretical and experimental dependences of Tm and ΔT on rb, [Na(+)], and GC content. For multi-peak DMCs, Tm value determined in this way is the closest to the thermodynamic melting temperature (the helix-coil transition enthalpy/entropy ratio).
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Affiliation(s)
- Dmitri Y Lando
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 220141 Minsk, Belarus; Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan.
| | - Alexander S Fridman
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 220141 Minsk, Belarus
| | - Chun-Ling Chang
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | | | - Elena N Galyuk
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 220141 Minsk, Belarus
| | - Oleg N Murashko
- Institute of Molecular Biology, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Chun-Chung Chen
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Chin-Kun Hu
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan.
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Golichenko AA, Domasevitch KV, Kytova DE, Shtemenko AV. Crystal structure of cis-bis(μ-β-alanine-κ 2O: O′)bis[trichloridorhenium(III)]( Re– Re) sesquihydrate. Acta Crystallogr E Crystallogr Commun 2015; 71:45-7. [PMID: 25705447 PMCID: PMC4331895 DOI: 10.1107/s2056989014026620] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 12/03/2014] [Indexed: 12/03/2022]
Abstract
A dirhenium(III) cis-dicarboxylate complex is reported, which is representative of a small class of zwitterionic ammoniacarboxylato complexes involving a quadruple metal–metal bond. The structure of the title compound, [Re2Cl6(C3H7NO2)2]·1.5H2O, comprises a dinuclear complex cation [Re—Re = 2.2494 (3) Å] involving cis-oriented double carboxylate bridges, four equatorial chloride ions and two weakly bonded chloride ligands in the axial positions at the two rhenium(III) atoms. In the crystal, two complex molecules and two water molecules constitute hydrogen-bonded dimers, while an extensive hydrogen-bonding network involving the groups of the zwitterionic ligand is important for generation of the framework. An additional partially occupied water molecule is disordered over two sets of sites about a symmetry centre with a site-occupancy ratio of 0.3:0.2.
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Li Z, David A, Albani BA, Pellois JP, Turro C, Dunbar KR. Optimizing the Electronic Properties of Photoactive Anticancer Oxypyridine-Bridged Dirhodium(II,II) Complexes. J Am Chem Soc 2014; 136:17058-70. [DOI: 10.1021/ja5078359] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhanyong Li
- Department of Chemistry, Texas A&M University, College Station, Texas 77840, United States
| | - Amanda David
- Department of Chemistry, Texas A&M University, College Station, Texas 77840, United States
| | - Bryan A. Albani
- Department
of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jean-Philippe Pellois
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Claudia Turro
- Department
of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Kim R. Dunbar
- Department of Chemistry, Texas A&M University, College Station, Texas 77840, United States
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Li Z, Shtemenko NI, Yegorova DY, Babiy SO, Brown AJ, Yang T, Shtemenko AV, Dunbar KR. Liposomes loaded with a dirhenium compound and cisplatin: preparation, properties and improvedin vivoanticancer activity. J Liposome Res 2014; 25:78-87. [DOI: 10.3109/08982104.2014.954127] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Peña B, Barhoumi R, Burghardt RC, Turro C, Dunbar KR. Confocal fluorescence microscopy studies of a fluorophore-labeled dirhodium compound: visualizing metal-metal bonded molecules in lung cancer (A549) cells. J Am Chem Soc 2014; 136:7861-4. [PMID: 24854400 PMCID: PMC4063186 DOI: 10.1021/ja503774m] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Indexed: 02/08/2023]
Abstract
The new dirhodium compound [Rh2(μ-O2CCH3)2(η(1)-O2CCH3)(phenbodipy)(H2O)3][O2CCH3] (1), which incorporates a bodipy fluorescent tag, was prepared and studied by confocal fluorescence microscopy in human lung adenocarcinoma (A549) cells. It was determined that 1 localizes mainly in lysosomes and mitochondria with no apparent nuclear localization in the 1-100 μM range. These results support the conclusion that cellular organelles rather than the nucleus can be targeted by modification of the ligands bound to the Rh2(4+) core. This is the first study of a fluorophore-labeled metal-metal bonded compound, work that opens up new venues for the study of intracellular distribution of dinuclear transition metal anticancer complexes.
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Affiliation(s)
- Bruno Peña
- Department
of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Rola Barhoumi
- Department
of Veterinary Integrative Biosciences, Texas
A&M University, College Station, Texas 77843, United States
| | - Robert C. Burghardt
- Department
of Veterinary Integrative Biosciences, Texas
A&M University, College Station, Texas 77843, United States
| | - Claudia Turro
- Department
of Chemistry and Biochemistry, The Ohio
State University, Columbus, Ohio 43210, United States
| | - Kim R. Dunbar
- Department
of Chemistry, Texas A&M University, College Station, Texas 77842, United States
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