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Delasoie J, Pavic A, Voutier N, Vojnovic S, Crochet A, Nikodinovic-Runic J, Zobi F. Identification of novel potent and non-toxic anticancer, anti-angiogenic and antimetastatic rhenium complexes against colorectal carcinoma. Eur J Med Chem 2020; 204:112583. [PMID: 32731186 DOI: 10.1016/j.ejmech.2020.112583] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/06/2020] [Accepted: 06/14/2020] [Indexed: 12/26/2022]
Abstract
Combination therapy targeting both tumor growth and vascularization is considered to be a cornerstone for colorectal carcinomas (CRC) treatment. However, the major obstacles of most clinical anticancer drugs are their weak selective activity towards cancer cells and inherent inner organs toxicity, accompanied with fast drug resistance development. In our effort to discover novel selective and non-toxic agents effective against CRC, we designed, synthesized and characterized a series of rhenium(I) tricarbonyl-based complexes with increased lipophilicity. Two of these novel compounds were discovered to possess remarkable anticancer, anti-angiogenic and antimetastatic activity in vivo (zebrafish-human HCT-116 xenograft model), being effective at very low doses (1-3 μM). At doses as high as 250 μM the complexes did not provoke toxicity issues encountered in clinical anticancer drugs (cardio-, hepato-, and myelotoxicity). In vivo assays showed that the two compounds exceed the anti-tumor and anti-angiogenic activity of clinical drugs cisplatin and sunitinib malate, and display a large therapeutic window.
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Affiliation(s)
- Joachim Delasoie
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 152, Belgrade, Republic of Serbia.
| | - Noémie Voutier
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland
| | - Sandra Vojnovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 152, Belgrade, Republic of Serbia
| | - Aurelien Crochet
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland
| | - Jasmina Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 152, Belgrade, Republic of Serbia.
| | - Fabio Zobi
- Department of Chemistry, Fribourg University, Chemin Du Musée 9, 1700, Fribourg, Switzerland.
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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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Tricarbonylrhenium(I) complexes with heterodentate ligands based on functionalized amides: Synthesis, structural features, and cytotoxic activity. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.04.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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5
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Cauteruccio S, Licandro E, Panigati M, D'Alfonso G, Maiorana S. Modifying the properties of organic molecules by conjugation with metal complexes: The case of peptide nucleic acids and of the intrinsically chiral thiahelicenes. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Azzarelli N, Ponnala S, Aguirre A, Dampf SJ, Davis MP, Ruggiero MT, Lopez Diaz V, Babich JW, Coogan M, Korter T, Doyle RP, Zubieta J. Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Mallick S, Ghosh MK, Mandal S, Rane V, Kadam R, Chatterjee A, Bhattacharyya A, Chattopadhyay S. The first examples of multiply bonded dirhenium(iii,ii) paramagnetic complexes containing nitrobenzoate ligands: spectroscopic, structural, cytotoxicity and computational studies. Dalton Trans 2018; 46:5670-5679. [PMID: 28181614 DOI: 10.1039/c7dt00142h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
4-Nitrobenzoic acid, 3-nitrobenzoic acid and 4'-nitro[1,1'-biphenyl]-4-carboxylic acid react with the multiply bonded paramagnetic dirhenium(iii,ii) complex Re2(μ-O2CCH3)Cl4(μ-Ph2PCH2PPh2)2 (1) in refluxing ethanol to afford the paramagnetic substitution products of the type Re2(μ-L)Cl4(μ-Ph2PCH2PPh2)2, where L represents the nitrobenzoate ligands [L = 4-nitrobenzoate, 2; 3-nitrobenzoate, 3; 4'-nitro[1,1'-biphenyl]-4-carboxylate, 4]. These are the first examples of paramagnetic dirhenium complexes containing nitrobenzoate ligands. The spectral (UV-vis, IR, and EPR) and electrochemical properties of the complexes are described. The identity of 4 has been established by single-crystal X-ray structure determination (Re-Re distance of 2.2967(4) Å). The electronic structures of the complexes were scrutinized by density functional theory (DFT) calculations. X-band EPR spectral measurements along with the DFT analysis show that the unpaired electron resides in the metal-metal δ* antibonding orbital. The complexes were also screened in vitro for their antiproliferative properties against the human breast cancer cell line MCF-7 by the MTT assay. Flow cytometry analysis showed that the complexes arrested the sub-G0/G1 phase.
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Affiliation(s)
- Suman Mallick
- Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, WB, India.
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Duan X, Ruan Q, Gan Q, Song X, Fang S, Zhang X, Zhang J. Radiosynthesis and evaluation of novel 99mTc(CO)3-labelled thymidine dithiocarbamate derivatives for tumor imaging with SPECT. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Duan X, Zhang X, Gan Q, Fang S, Ruan Q, Song X, Zhang J. Novel 99mTc-labelled complexes with thymidine isocyanide: radiosynthesis and evaluation as potential tumor imaging tracers. MEDCHEMCOMM 2018; 9:705-712. [PMID: 30108961 PMCID: PMC6071732 DOI: 10.1039/c7md00635g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 02/27/2018] [Indexed: 01/11/2023]
Abstract
A novel thymidine isocyanide (CN-TdR) functionalized at the N3 position of thymidine was synthesized and then radiolabelled with 99mTc(i) and [99mTc(i)(CO)3]+ cores to produce [99mTc(CN-TdR)6]+ and [99mTc(CO)3(CN-TdR)3]+, respectively. Both of them were prepared with high radiochemical purity and were stable over 6 h in saline at ambient temperature and in serum at 37 °C. The partition coefficient results demonstrated that they were hydrophilic. The cell internalization studies showed that their uptake might be mediated by nucleoside transporters. Biodistribution of these complexes in mice bearing the S180 tumor showed that they accumulated in the tumor with high uptake and cleared rapidly from blood and muscles, producing high tumor/blood and tumor/muscle ratios. Between them, [99mTc(CN-TdR)6]+ exhibited advantages concerning a higher tumor uptake, tumor/blood ratio and tumor/muscle ratio at 60 min post-injection. Single photon emission computed tomography imaging studies showed that there was a clear accumulation in tumor sites, suggesting that [99mTc(CN-TdR)6]+ could be a promising candidate for tumor imaging.
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Affiliation(s)
- Xiaojiang Duan
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
| | - Xuran Zhang
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
- Department of Isotopes , China Institute of Atomic Energy , P. O. Box 2108 , Beijing 102413 , P.R. China
| | - Qianqian Gan
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
| | - Si'an Fang
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
| | - Qing Ruan
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
| | - Xiaoqing Song
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
| | - Junbo Zhang
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , P.R. China .
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Muñoz-Osses M, Siegmund D, Gómez A, Godoy F, Fierro A, Llanos L, Aravena D, Metzler-Nolte N. Influence of the substituent on the phosphine ligand in novel rhenium(i) aldehydes. Synthesis, computational studies and first insights into the antiproliferative activity. Dalton Trans 2018; 47:13861-13869. [DOI: 10.1039/c8dt03160f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyrhetrenyl phosphine derivatives were synthesized and evaluated as potential anticancer agents. Electrochemical and computational studies were carried out.
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Affiliation(s)
- Michelle Muñoz-Osses
- Laboratory of Organometallic Chemistry
- Faculty of Chemistry and Biology
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Daniel Siegmund
- Inorganic Chemistry I – Bioinorganic Chemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
| | - Alejandra Gómez
- Laboratory of Organometallic Chemistry
- Faculty of Chemistry and Biology
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Fernando Godoy
- Laboratory of Organometallic Chemistry
- Faculty of Chemistry and Biology
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Angélica Fierro
- Laboratory of Bioorganic and Molecular Simulation
- Department of Organic Chemistry
- Faculty of Chemistry
- Pontificia Universidad Católica de Chile
- Santiago
| | - Leonel Llanos
- Laboratory of Computational Inorganic Chemistry
- Faculty of Chemistry and Biology
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Daniel Aravena
- Laboratory of Computational Inorganic Chemistry
- Faculty of Chemistry and Biology
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Nils Metzler-Nolte
- Inorganic Chemistry I – Bioinorganic Chemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
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12
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Barbeyron R, Vasseur JJ, Baraguey C, Smietana M. Synthesis of 3′-deoxy-3′-iminodiacetic acid and 3′-deoxy-3′-aminodiethanol thymidine analogues and NMR study of their complexation with boronic acids. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gregory GL, Hierons EM, Kociok-Köhn G, Sharma RI, Buchard A. CO2-Driven stereochemical inversion of sugars to create thymidine-based polycarbonates by ring-opening polymerisation. Polym Chem 2017. [DOI: 10.1039/c7py00118e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A strategy using CO2 to invert the stereochemistry and cyclise natural sugars is presented and applied towards thymidine-based polymers by ring-opening polymerisation.
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Affiliation(s)
| | | | | | - Ram I. Sharma
- Department of Chemical Engineering
- University of Bath
- Bath BA2 7AY
- UK
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Imstepf S, Pierroz V, Raposinho P, Bauwens M, Felber M, Fox T, Shapiro AB, Freudenberg R, Fernandes C, Gama S, Gasser G, Motthagy F, Santos IR, Alberto R. Nuclear Targeting with an Auger Electron Emitter Potentiates the Action of a Widely Used Antineoplastic Drug. Bioconjug Chem 2015; 26:2397-407. [PMID: 26473388 DOI: 10.1021/acs.bioconjchem.5b00466] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We present the combination of the clinically well-proven chemotherapeutic agent, Doxorubicin, and (99m)Tc, an Auger and internal conversion electron emitter, into a dual-action agent for therapy. Chemical conjugation of Doxorubicin to (99m)Tc afforded a construct which autonomously ferries a radioactive payload into the cell nucleus. At this site, damage is exerted by dose deposition from Auger radiation. The (99m)Tc-conjugate exhibited a dose-dependent inhibition of survival in a selected panel of cancer cells and an in vivo study in healthy mice evidenced a biodistribution which is comparable to that of the parent drug. The homologous Rhenium conjugate was found to effectively bind to DNA, inhibited human Topoisomerase II, and exhibited cytotoxicity in vitro. The collective in vitro and in vivo data demonstrate that the presented metallo-conjugates closely mimic native Doxorubicin.
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Affiliation(s)
| | | | - Paula Raposinho
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa , Estrada Nacional 10 km 139.7, PT-2695-066 Bobadela LRS, Portugal
| | - Matthias Bauwens
- Department of Nuclear Medicine, MUMC+ , P. Debeyelaan 25, NL-6229 Maastricht, Netherlands
| | | | | | - Adam B Shapiro
- Bioscience Department, Infection Innovative Medicines, AstraZeneca R&D Boston , Waltham, Massachusetts 02451, United States
| | - Robert Freudenberg
- Universitätsklinikum Carl Gustav Carus Dresden , Fetscherstrasse 74, D-01307 Dresden, Germany
| | - Célia Fernandes
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa , Estrada Nacional 10 km 139.7, PT-2695-066 Bobadela LRS, Portugal
| | - Sofia Gama
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa , Estrada Nacional 10 km 139.7, PT-2695-066 Bobadela LRS, Portugal
| | | | - Felix Motthagy
- Department of Nuclear Medicine, MUMC+ , P. Debeyelaan 25, NL-6229 Maastricht, Netherlands
| | - Isabel R Santos
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa , Estrada Nacional 10 km 139.7, PT-2695-066 Bobadela LRS, Portugal
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15
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Medici S, Peana M, Nurchi VM, Lachowicz JI, Crisponi G, Zoroddu MA. Noble metals in medicine: Latest advances. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.08.002] [Citation(s) in RCA: 373] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Gómez-Iglesias P, Martín-Alvarez JM, Miguel D, Villafañe F. Amidino ligands obtained from the coupling of 1-methylcytosine and nitrile: a new method to incorporate biomolecules into luminescent Re(CO)3 complexes. Dalton Trans 2015; 44:17478-81. [DOI: 10.1039/c5dt03221k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Amidino chelating ligands obtained from the coupling of 1-methylcytosine with nitriles allow the incorporation of biologically relevant substrates into Re(CO)3 complexes.
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Affiliation(s)
- Patricia Gómez-Iglesias
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid
| | - Jose Miguel Martín-Alvarez
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid
| | - Daniel Miguel
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid
| | - Fernando Villafañe
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid
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Clède S, Policar C. Metal-carbonyl units for vibrational and luminescence imaging: towards multimodality. Chemistry 2014; 21:942-58. [PMID: 25376740 DOI: 10.1002/chem.201404600] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metal-carbonyl complexes are attractive structures for bio-imaging. In addition to unique vibrational properties due to the CO moieties enabling IR and Raman cell imaging, the appropriate choice of ancillary ligands opens up the opportunity for luminescence detection. Through a classification by techniques, past and recent developments in the application of metal-carbonyl complexes for vibrational and luminescence bio-imaging are reviewed. Finally, their potential as bimodal IR and luminescent probes is addressed.
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Affiliation(s)
- Sylvain Clède
- Ecole Normale Supérieure, PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS-ENS-UPMC, Laboratoire des Biomolécules, UMR7203, 24, rue Lhomond, 75005 Paris (France), Fax: (+33) 1-4432-3389
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Leonidova A, Gasser G. Underestimated potential of organometallic rhenium complexes as anticancer agents. ACS Chem Biol 2014; 9:2180-93. [PMID: 25137157 DOI: 10.1021/cb500528c] [Citation(s) in RCA: 199] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In the recent years, organometallic compounds have become recognized as promising anti-cancer drug candidates. While radioactive (186/188)Re compounds are already used in clinics for cancer treatment, cold Re organometallic compounds have mostly been explored as luminescent probes for cell imaging and photosensitizers in photocatalysis. However, a growing number of studies have recently revealed the potential of Re organometallic complexes as anti-cancer agents. Several compounds have displayed cytotoxicity equaling or exceeding that of the well-established anti-cancer drug cisplatin. In this review, we present the currently known Re organometallic complexes that have shown anti-proliferative activity on cancer cell lines. A particular emphasis is placed on their cellular uptake and localization as well as their potential mechanism of action.
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Affiliation(s)
- Anna Leonidova
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Gilles Gasser
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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Mota AAR, Carvalho PHPR, Guido BC, de Oliveira HCB, Soares TA, Corrêa JR, Neto BAD. Bioimaging, cellular uptake and dynamics in living cells of a lipophilic fluorescent benzothiadiazole at low temperature (4 °C). Chem Sci 2014. [DOI: 10.1039/c4sc01785d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Clède S, Lambert F, Saint-Fort R, Plamont MA, Bertrand H, Vessières A, Policar C. Influence of the Side-Chain Length on the Cellular Uptake and the Cytotoxicity of Rhenium Triscarbonyl Derivatives: A Bimodal Infrared and Luminescence Quantitative Study. Chemistry 2014; 20:8714-22. [DOI: 10.1002/chem.201402471] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Indexed: 12/11/2022]
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21
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Kitanovic I, Can S, Alborzinia H, Kitanovic A, Pierroz V, Leonidova A, Pinto A, Spingler B, Ferrari S, Molteni R, Steffen A, Metzler-Nolte N, Wölfl S, Gasser G. A deadly organometallic luminescent probe: anticancer activity of a ReI bisquinoline complex. Chemistry 2014; 20:2496-507. [PMID: 24464824 DOI: 10.1002/chem.201304012] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Indexed: 12/25/2022]
Abstract
The photophysical properties of [Re(CO)3 (L-N3)]Br (L-N3 =2-azido-N,N-bis[(quinolin-2-yl)methyl]ethanamine), which could not be localized in cancer cells by fluorescence microscopy, have been revisited in order to evaluate its use as a luminescent probe in a biological environment. The Re(I) complex displays concentration-dependent residual fluorescence besides the expected phosphorescence, and the nature of the emitting excited states have been evaluated by DFT and time-dependent (TD) DFT methods. The results show that fluorescence occurs from a (1) LC/MLCT state, whereas phosphorescence mainly stems from a (3) LC state, in contrast to previous assignments. We found that our luminescent probe, [Re(CO)3 (L-N3)]Br, exhibits an interesting cytotoxic activity in the low micromolar range in various cancer cell lines. Several biochemical assays were performed to unveil the cytotoxic mechanism of the organometallic Re(I) bisquinoline complex. [Re(CO)3 (L-N3)]Br was found to be stable in human plasma indicating that [Re(CO)3 (L-N3)]Br itself and not a decomposition product is responsible for the observed cytotoxicity. Addition of [Re(CO)3 (L-N3)]Br to MCF-7 breast cancer cells grown on a biosensor chip micro-bioreactor immediately led to reduced cellular respiration and increased glycolysis, indicating a large shift in cellular metabolism and inhibition of mitochondrial activity. Further analysis of respiration of isolated mitochondria clearly showed that mitochondrial respiratory activity was a direct target of [Re(CO)3 (L-N3)]Br and involved two modes of action, namely increased respiration at lower concentrations, potentially through increased proton transport through the inner mitochondrial membrane, and efficient blocking of respiration at higher concentrations. Thus, we believe that the direct targeting of mitochondria in cells by [Re(CO)3 (L-N3)]Br is responsible for the anticancer activity.
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Affiliation(s)
- Igor Kitanovic
- Department of Bioanalytics and Molecular Biology, Institute for Pharmacy and Molecular Biology, University of Heidelberg im Neuenheimer Feld 364, 69120 Heidelberg (Germany), Tel: (+49) 622-1544-878 http://www.uni-heidelberg.de/fakultaeten/biowissenschaften/ipmb/biologie/woelfl/index.html
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Coogan MP, Doyle RP, Valliant JF, Babich JW, Zubieta J. Single amino acid chelate complexes of the M(CO)3 (+) core for correlating fluorescence and radioimaging studies (M = (99m) Tc or Re). J Labelled Comp Radiopharm 2014; 57:255-61. [PMID: 24395431 DOI: 10.1002/jlcr.3164] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 10/29/2013] [Indexed: 01/03/2023]
Abstract
Single amino acid chelates (SAACs) and SAAC-like bifunctional ligands can be exploited in the design of a variety of bioconjugates for facile metallation with the M(CO)3 (+) unit with M = (99m) Tc or Re. When the donor groups of the ligand are quinolone, thiazole or other similarly conjugated heterocycles, the rhenium complexes are fluorescent, affording complementary and isostructural fluorescent probes to the radioactive (99m) Tc analogues. The versatility of the approach has been demonstrated by the preparation of bioconjugates incorporating peptides, biotin, folic acid, thymidine and vitamin B12 . In addition, the unusual photophysical properties observed for rhenium of the [bisthiazole-diamino butane-Re(CO)3 (+) ] derivative [BTBA-Re(CO)3 ](+) are discussed.
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Affiliation(s)
- Michael P Coogan
- School of Chemistry and Chemical Biology, University of Lancaster, Lancaster, LA1 4YB, UK
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François A, Auzanneau C, Le Morvan V, Galaup C, Godfrey HS, Marty L, Boulay A, Artigau M, Mestre-Voegtlé B, Leygue N, Picard C, Coulais Y, Robert J, Benoist E. A functionalized heterobimetallic99mTc/Re complex as a potential dual-modality imaging probe: synthesis, photophysical properties, cytotoxicity and cellular imaging investigations. Dalton Trans 2014; 43:439-50. [DOI: 10.1039/c3dt51968f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
The compound class of 3-carboranyl thymidine analogues (3CTAs) are boron delivery agents for boron neutron capture therapy (BNCT), a binary treatment modality for cancer. Presumably, these compounds accumulate selectively in tumor cells via intracellular trapping, which is mediated by hTK1. Favorable in vivo biodistribution profiles of 3CTAs led to promising results in preclinical BNCT of rats with intracerebral brain tumors. This review presents an overview on the design, synthesis, and biological evaluation of first- and second-generation 3CTAs. Boronated nucleosides developed prior to 3CTAs for BNCT and non-boronated N3-substituted thymidine conjugates for other areas of cancer therapy and imaging are also described. In addition, basic features of carborane clusters, which are used as boron moieties in the design and synthesis of 3CTAs, and the biological and structural features of TK1-like enzymes, which are the molecular targets of 3CTAs, are discussed.
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de Almeida A, Oliveira BL, Correia JD, Soveral G, Casini A. Emerging protein targets for metal-based pharmaceutical agents: An update. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.01.031] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Synthesis, characterization, and biological studies of emissive rhenium–glutamine conjugates. J Biol Inorg Chem 2013; 18:831-44. [DOI: 10.1007/s00775-013-1023-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 07/03/2013] [Indexed: 12/23/2022]
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Anderson CB, Elliott ABS, Lewis JEM, McAdam CJ, Gordon KC, Crowley JD. fac-Re(CO)3 complexes of 2,6-bis(4-substituted-1,2,3-triazol-1-ylmethyl)pyridine "click" ligands: synthesis, characterisation and photophysical properties. Dalton Trans 2013; 41:14625-32. [PMID: 23104300 DOI: 10.1039/c2dt31569f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The syntheses of the 4-n-propyl and 4-phenyl substituted fac-Re(CO)(3) complexes of the tridentate "click" ligand (2,6-bis(4-substituted-1,2,3-triazol-1-ylmethyl)pyridine) are described. The complexes were obtained by refluxing methanol solutions of [Re(CO)(5)Cl], AgPF(6) and either the 4-propyl or 4-phenyl substituted ligand for 16 h. The ligands and the two rhenium(I) complexes were characterised by elemental analysis, HR-ESMS, ATR-IR, (1)H and (13)C NMR spectroscopy and the molecular structures of both complexes were confirmed by X-ray crystallography. The electronic structure of the fac-Re(CO)(3) "click" complexes was probed using UV-Vis, Raman and emission spectroscopy, cyclic voltammetry and DFT calculations. Altering the electronic nature of the ligand's substituent, from aromatic to alkyl, had little effect on the absorption/emission maxima and electrochemical properties of the complexes indicating that the 1,2,3-triazole unit may insulate the metal centre from the electronic modification at the ligands' periphery. Both Re(I) complexes were found to be weakly emitting with short excited state lifetimes. The electrochemistry of the complexes is defined by quasi-reversible Re oxidation and irreversible triazole-based ligand reduction processes.
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Clède S, Lambert F, Sandt C, Kascakova S, Unger M, Harté E, Plamont MA, Saint-Fort R, Deniset-Besseau A, Gueroui Z, Hirschmugl C, Lecomte S, Dazzi A, Vessières A, Policar C. Detection of an estrogen derivative in two breast cancer cell lines using a single core multimodal probe for imaging (SCoMPI) imaged by a panel of luminescent and vibrational techniques. Analyst 2013; 138:5627-38. [DOI: 10.1039/c3an00807j] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Thorp-Greenwood FL, Balasingham RG, Coogan MP. Organometallic complexes of transition metals in luminescent cell imaging applications. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.01.020] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Berends HM, Kurz P. Investigation of light-triggered carbon monoxide release from two manganese photoCORMs by IR, UV–Vis and EPR spectroscopy. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.10.047] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Balasingham RG, Coogan MP, Thorp-Greenwood FL. Complexes in context: attempting to control the cellular uptake and localisation of rhenium fac-tricarbonyl polypyridyl complexes. Dalton Trans 2011; 40:11663-74. [PMID: 21897946 DOI: 10.1039/c1dt11219h] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Transition metal lumophores are now well established as agents for cell imaging, but we are still not able to predict generally and with confidence their cellular localisation, or, for that matter, their uptake efficiencies. While many such complexes have been shown to illuminate cells, genuine applications in biomedical research will only be developed when their uptake and localisation are better understood. This perspective is not a comprehensive review of luminescence, but is an overview of attempts to control uptake and localisation, focussing on a personal account of this group's development of imaging agents based on the Re(CO)(3) bipyridine core, and our attempts to understand and control their cellular behaviour.
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