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Palmeira-Mello MV, Caballero AB, Herrera-Ramírez P, Costa AR, Santana SS, Guedes GP, Caubet A, Batista AA, Gamez P, Lanznaster M. Cobalt(III)-py 2en systems as potential carriers of β-ketoester-based ligands. J Inorg Biochem 2023; 248:112345. [PMID: 37562318 DOI: 10.1016/j.jinorgbio.2023.112345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/14/2023] [Accepted: 07/27/2023] [Indexed: 08/12/2023]
Abstract
Two cobalt(III) complexes containing different β-ketoesters, namely [CoIII(L1)(py2en)](ClO4)2·H2O (1) and [CoIII(L2)(py2en)](ClO4)2 (2) (py2en = N,N'-bis(pyridin-2-ylmethyl)ethylenediamine; L1- = methylacetoacetate; L2- = ethyl 4-chloroacetoacetate) have been prepared and investigated as prototypes of bioreductive prodrugs. The presence of β-ketoester and py2en ligands in 1 and 2, as well as the perchlorate counterions, was supported by IR spectroscopy and CHN elemental analysis. The composition molecular structure of both complexes was confirmed by NMR spectroscopy and ESI mass spectrometry. Structural information was also obtained for 2via X-ray diffraction analysis. The redox properties indicate that 1 and 2 are suitable for reduction under biological conditions. Investigation of DNA-interacting suggest that 1 and 2 bind DNA via electrostatic forces. Both complexes may be employed as possible platforms for the delivery of biologically active compounds, since their reaction with ascorbic acid in PBS at pH 6.2 and 7.4 at 37°C results in the release of the β-ketoester ligands upon Co(III)/Co(II) reduction.
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Affiliation(s)
- Marcos V Palmeira-Mello
- Departamento de Química, Universidade Federal de São Carlos (UFSCar), 13561-901 São Carlos, São Paulo, Brazil; Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil.; nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ana B Caballero
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain.
| | - Piedad Herrera-Ramírez
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Analu R Costa
- Departamento de Química, Universidade Federal de São Carlos (UFSCar), 13561-901 São Carlos, São Paulo, Brazil
| | - Savyo S Santana
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil
| | - Guilherme P Guedes
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil
| | - Amparo Caubet
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Alzir Azevedo Batista
- Departamento de Química, Universidade Federal de São Carlos (UFSCar), 13561-901 São Carlos, São Paulo, Brazil
| | - Patrick Gamez
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Mauricio Lanznaster
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil..
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2
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Moledo Vicente Guedes A, Sodré de Abreu L, Maldonado IAV, Fernandes WS, Cardozo TM, A Allão Cassaro R, Scarpellini M, Poneti G. Valence tautomerism in a cobalt-dioxolene complex containing an imidazolic ancillary ligand. RSC Adv 2023; 13:20050-20057. [PMID: 37409047 PMCID: PMC10318486 DOI: 10.1039/d3ra03235c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/22/2023] [Indexed: 07/07/2023] Open
Abstract
This work reports the synthesis, structural, spectroscopic and magnetic investigation of two complexes, [Co(bmimapy)(3,5-DTBCat)]PF6·H2O (1) and [Co(bmimapy)(TCCat)]PF6·H2O (2), where bmimapy is an imidazolic tetradentate ancillary ligand and 3,5-DTBCat and TCCat are the 3,5-di-tert-butyl-catecholate and tetrachlorocatecholate anions, respectively. Their structures have been elucidated using single crystal X-ray diffraction, showing a pseudo-octahedral cobalt ion bound to a chelating dioxolene ligand and the ancillary bmimapy ligand in a folded conformation. Magnetometry displayed an entropy-driven, incomplete, Valence Tautomeric (VT) process for 1 in the 300-380 K temperature range, while 2 displayed a temperature independent, diamagnetic low-spin cobalt(iii)-catecholate charge distribution. This behaviour was interpreted on the basis of the cyclic voltammetric analysis, allowing the estimation of the free energy difference associated with the VT interconversion of +8 and +96 kJ mol-1 for 1 and 2, respectively. A DFT analysis of this free energy difference highlighted the ability of the methyl-imidazole pendant arm of bmimapy favouring the onset of the VT phenomenon. This work introduces the imidazolic bmimapy ligand to the scientific community working in the field of valence tautomerism, increasing the library of ancillary ligands to prepare temperature switchable molecular magnetic materials.
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Affiliation(s)
| | - Leandro Sodré de Abreu
- Instituto de Química, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 21941-909 Brazil
| | | | - William Silva Fernandes
- Instituto de Química, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 21941-909 Brazil
| | - Thiago Messias Cardozo
- Instituto de Química, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 21941-909 Brazil
| | - Rafael A Allão Cassaro
- Instituto de Química, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 21941-909 Brazil
| | - Marciela Scarpellini
- Instituto de Química, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 21941-909 Brazil
| | - Giordano Poneti
- Instituto de Química, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 21941-909 Brazil
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Kulesa KM, Padilha DS, Thapa B, Mazumder S, Losovyj Y, Schlegel HB, Scarpellini M, Verani CN. A bioinspired cobalt catalyst based on a tripodal imidazole/pyridine platform capable of water reduction and oxidation. J Inorg Biochem 2023; 242:112162. [PMID: 36841008 DOI: 10.1016/j.jinorgbio.2023.112162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 02/04/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
The prototypical drug carrier [CoII(L1)Cl]PF6 (1), where L1 is a tripodal amine bound to pyridine and methyl-imidazoles, had its electrocatalytic water splitting activity studied under different pH conditions. This species contains a high-spin 3d7 CoII metal center, and is capable of generating both H2 from water reduction and O2 from water oxidation. Turnover numbers reach 390 after 3 h for water reduction. Initial water oxidation activity is molecular, with TONs of 71 at pH 7 and 103 at pH 11.5. The results reveal that species 1 can undergo several redox transformations, including reduction to the 3d8 CoI species that precedes a LS3d6 hydride for water reduction, as well as nominal CoIVO and CoIII-OOH species required for water oxidation. Post-catalytic analyses confirm the molecular nature of reduction and support initial molecular activity for oxidation.
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Affiliation(s)
- Krista M Kulesa
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
| | - Diego S Padilha
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-611, Brazil
| | - Bishnu Thapa
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
| | - Shivnath Mazumder
- Department of Chemistry, Indian Institute of Technology Jammu, Jammu 181221, India
| | - Yaroslav Losovyj
- Department of Chemistry, Indiana University, Bloomington, 800 E. Kirkwood Avenue, Bloomington, IN 47405, USA
| | - H Bernhard Schlegel
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA.
| | - Marciela Scarpellini
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-611, Brazil.
| | - Cláudio N Verani
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA.
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Karumban KS, Raut R, Gupta P, Muley A, Giri B, Kumbhakar S, Misra A, Maji S. Mononuclear cobalt(II) complexes with polypyridyl ligands: Synthesis, characterization, DNA interactions and in vitro cytotoxicity towards human cancer cells. J Inorg Biochem 2022; 233:111866. [DOI: 10.1016/j.jinorgbio.2022.111866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/28/2022] [Accepted: 05/17/2022] [Indexed: 02/02/2023]
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de Souza ICA, Santana SDS, Gómez JG, Guedes GP, Madureira J, Quintal SMDO, Lanznaster M. Investigation of cobalt(III)-phenylalanine complexes for hypoxia-activated drug delivery. Dalton Trans 2021; 49:16425-16439. [PMID: 32692333 DOI: 10.1039/d0dt01389g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Four cobalt(iii)-phenylalanine complexes, [Co(Phe)(py2en)](ClO4)2·H2O (1), [Co(Phe)(TPA)](ClO4)2·H2O (2), [Co(Phe)(py2enMe2)](ClO4)2·H2O (3) and [Co(bipy)2(Phe)](ClO4)2·H2O (4), were investigated as prototype models for hypoxia-activated delivery of melphalan - a phenylalanine derivative anticancer drug of the class of nitrogen mustards. Single crystal X-ray diffraction analysis provided the molecular structures of 1-4, as a single isomer/conformer. According with NMR and theoretical calculations, the solid-state structures of 2 and 4 are maintained in solutions. For complexes 1 and 3, though, a mixture of isomers was found in DMSO solutions: Λ-cisα(exo,exo) and Δ-cisβ1(exo,exo) for 1 (3 : 2 ratio), and Λ-cisα(exo,exo) and Δ-cisα(exo,exo) for 3 (5 : 1 ratio). Theoretical calculations point to a re-equilibration reaction of the solid-state Λ-cisβ1 isomer of 1 in solution. Electrochemical analysis revealed a correlation between the electron-donor capacity of the ancillary ligands and the redox potentials of the complexes. The potentials varied from +0.01 for 1 to +0.31 V vs. SHE for 4 in aqueous media and indicate that reduction should be achieved in biological media. The integrity of the complexes in pH 5.5 and 7.4 buffered solutions was confirmed by UV-Vis monitoring up to 24 h at 25 °C. Reduction by ascorbic acid (AA) shows an O2-dependent dissociation of the l-Phe for complexes 1-3, with higher conversion rates at pH 7.4. For complex 4, a fast dissociation of l-Phe was observed, with conversion rates unaffected by the pH and presence of O2.
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Palmeira-Mello MV, Caballero AB, Ribeiro JM, de Souza-Fagundes EM, Gamez P, Lanznaster M. Evaluation of cobalt(III) complexes as potential hypoxia-responsive carriers of esculetin. J Inorg Biochem 2020; 211:111211. [PMID: 32805459 DOI: 10.1016/j.jinorgbio.2020.111211] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 02/02/2023]
Abstract
Differentiation between hypoxic and normoxic tissues have been exploited for the development of selective chemotherapeutic agents. In this context, cobalt(III)-based coordination compounds have been designed and investigated as prospective hypoxia-responsive drug delivery systems. Three cobalt(III) complexes, namely [CoIII(esc)(py2en)]ClO4·(CH3OH)2 (1) [CoIII(esc)(TPA)]ClO4·3H2O (2) and [CoIII(bipy)2(esc)]ClO4·2.5H2O (3) (py2en = N,N'-bis(pyridin-2-ylmethyl)ethylenediamine, TPA = tris(2-pyridylmethyl)amine, bipy = 2,2'-bipyridine and esc = 6,7-dihydroxycoumarin or esculetin), were prepared and investigated as potential carriers of esculetin. The spectroscopic and electrochemical properties of 1-3 were investigated and compared. Reactions of the complexes with biologically relevant reducing agents, viz. ascorbic acid, cysteine and glutathione, were monitored spectroscopically for 24 h, in pH 6.2 and 7.4 PBS phosphate buffer saline (PBS) solutions at 37 °C, under air, argon and dioxygen atmospheres. Dissociation of esculetin was observed upon Co3+/Co2+ reduction preferably under hypoxic conditions, with more effective conversion rates for 3 > 2 > 1. These results illustrate the importance to modulate the Co3+/Co2+ redox potential through the donor-acceptor properties of the ancillary ligands. Complex 3 is cytotoxic against HCT-116 but not against HT-29 and HEK-293 cells. In addition, DNA-binding studies indicate that interactions of 1 and 3 with the biomolecule are electrostatic.
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Affiliation(s)
- Marcos V Palmeira-Mello
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil; nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ana B Caballero
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Juliana Martins Ribeiro
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 30123-970 Belo Horizonte, MG, Brazil
| | - Elaine Maria de Souza-Fagundes
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 30123-970 Belo Horizonte, MG, Brazil
| | - Patrick Gamez
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Mauricio Lanznaster
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil.
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Phillips AM, Pombeiro AJ. Transition Metal-Based Prodrugs for Anticancer Drug Delivery. Curr Med Chem 2020; 26:7476-7519. [DOI: 10.2174/0929867326666181203141122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 11/08/2018] [Accepted: 11/12/2018] [Indexed: 12/14/2022]
Abstract
:
Transition metal complexes, of which the platinum(II) complex cisplatin is an example,
have been used in medicine to treat cancer for more than 40 years. Although many successes have
been achieved, there are problems associated with the use of these drugs, such as side effects and
drug resistance. Converting them into prodrugs, to make them more inert, so that they can travel to
the tumour site unchanged and release the drug in its active form only there, is a strategy which is
the subject of much research nowadays. The new prodrugs may be activated and release the cytotoxic
agent by differences in oxygen concentration or in pH, by the action of overexpressed enzymes,
by differences in metabolic rates, etc., which characteristically distinguish cancer cells from
normal ones, or even by the input of radiation, which can be visible light. Converting a metal complex
into a prodrug may also be used to improve its pharmacological properties. In some cases, the
metal complex is a carrier which transports the active drug as a ligand. Some platinum prodrugs
have reached clinical trials. So far platinum, ruthenium and cobalt have been the most studied metals.
This review presents the recent developments in this area, including the types of complexes
used, the mechanisms of drug action and in some cases the techniques applied to monitor drug delivery
to cells.
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Affiliation(s)
- Ana M.F. Phillips
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Armando J.L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Padilha DDS, Bortoluzzi AJ, Scarpellini M. An unusual partial occupancy of labile chloride and aqua ligands in cocrystallized isomers of a nickel(II) complex bearing a tripodal N 4-donor ligand. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2020; 76:17-22. [PMID: 31919303 DOI: 10.1107/s2053229619015705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 11/20/2019] [Indexed: 11/10/2022]
Abstract
A novel Ni2+ complex with the N4-donor tripodal ligand bis[(1-methyl-1H-imidazol-2-yl)methyl][2-(pyridin-2-yl)ethyl]amine (L), namely, aqua{bis[(1-methyl-1H-imidazol-2-yl-κN3)methyl][2-(pyridin-2-yl-κN)ethyl]amine-κN}chloridonickel(II) perchlorate, [NiCl(C17H22N6)(H2O)]ClO4 or [NiCl(H2O)(L)Cl]ClO4 (1), was synthesized and characterized by spectroscopic and spectrometric methods. The crystal structure of 1 reveals an interesting and unusual cocrystallization of isomeric complexes, which are crystallographically disordered with partial occupancy of the labile cis aqua and chloride ligands. The Ni2+ centre exhibits a distorted octahedral environment, with similar bond lengths for the two Ni-N(imidazole) bonds. The bond length increases for Ni-N(pyridine) and Ni-N(amine), which is in agreement with literature examples. The bond lengths of the disordered labile sites are also in the expected range and the Ni-Cl and Ni-O bond lengths are comparable with similar compounds. The electronic, redox and solution stability behaviour of 1 were also evaluated, and the data obtained suggest the maintenance of structural integrity, with no sign of demetalation or decomposition under the studied conditions.
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Affiliation(s)
- Diego da S Padilha
- Instituto de Química, Universidade Federal do Rio de Janeiro-UFRJ, Av. Athos da Silveira Ramos 149, Bloco A, Lab. 628a, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Adailton J Bortoluzzi
- Depto. de Química-Campus Trindade, Universidade Federal de Santa Catarina-UFSC, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Marciela Scarpellini
- Instituto de Química, Universidade Federal do Rio de Janeiro-UFRJ, Av. Athos da Silveira Ramos 149, Bloco A, Lab. 628a, 21941-909 Rio de Janeiro, RJ, Brazil
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9
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de Mello MVP, Cebrián-Torrejón G, Pereira JR, dos Santos Moreira C, Gomes CBDSMR, da Rocha DR, de Souza Fagundes EM, Ferreira GB, Lanznaster M. Evaluation of 5-hydroxy-1,4-naphthoquinone-cobalt(III) complexes for hypoxia-activated drug delivery. J Inorg Biochem 2019; 199:110756. [DOI: 10.1016/j.jinorgbio.2019.110756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 12/30/2022]
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Areas ES, de Assunção Paiva JL, Ribeiro FV, Pereira TM, Kummerle AE, Silva H, Guedes GP, Cellis do Nascimento AC, da Silva Miranda F, Neves AP. Redox-Activated Drug Delivery Properties and Cytotoxicity of Cobalt Complexes Based on a Fluorescent Coumarin-β-Keto Ester Hybrid. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Esther Saraiva Areas
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | | | - Felipe Vitório Ribeiro
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | - Thiago Moreira Pereira
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | - Arthur Eugen Kummerle
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
| | - Heveline Silva
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos, 6627 - Pampulha Belo Horizonte Minas Gerais CEP 31270-901 Brasil
| | - Guilherme Pereira Guedes
- Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho, Centro, Niterói Rio de Janeiro CEP 24020-150 Brasil
| | | | - Fabio da Silva Miranda
- Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho, Centro, Niterói Rio de Janeiro CEP 24020-150 Brasil
| | - Amanda Porto Neves
- Instituto de Química; Universidade Federal Rural do Rio de Janeiro; BR-465, Km 7 Seropédica CEP 23890-000 Rio de Janeiro Brasil
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Castro LC, Jaconiano YR, Evangelista TCS, Ferreira SB, Scarpellini M. Synthesis and characterization of new galactosylated-based N 2O-donors tridentate ligands. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1599953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lidiane C. Castro
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yasmim R. Jaconiano
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tereza C. S. Evangelista
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sabrina B. Ferreira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marciela Scarpellini
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Synthesis and Characterization of trans-Dichlorotetrakis(imidazole)cobalt(III) Chloride: A New Cobalt(III) Coordination Complex with Potential Prodrug Properties. Bioinorg Chem Appl 2018; 2018:4560757. [PMID: 30254666 PMCID: PMC6140278 DOI: 10.1155/2018/4560757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/31/2018] [Indexed: 11/17/2022] Open
Abstract
Numerous therapies for the treatment of cancer have been explored with increasing evidence that the use of metal-containing compounds could prove advantageous as anticancer therapeutics. Previous works on Ru(III) complexes suggest that structurally similar Co(III) complexes may provide good alternative, low-cost, effective prodrugs. Herein, a new complex, trans-[Co(imidazole)4Cl2]Cl (2), has been synthesized in high yields utilizing ligand exchange under refluxing conditions. The structure of 2 has been characterized by elemental analysis, 1H and 13C·NMR, ESI-MS, CV, and UV-Vis. The ability of 2 to become reduced in the presence of ascorbic acid was probed demonstrating the likely reduction of the Co(III) metal center to Co(II). In addition, preliminary cell line testing on 2 shows a lack of cytotoxicity.
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Abstract
Light as an external stimulus can be precisely manipulated in terms of irradiation time, site, wavelength, and density. As such, photoresponsive drug/gene delivery systems have been increasingly pursued and utilized for the spatiotemporal control of drug/gene delivery to enhance their therapeutic efficacy and safety. In this review, we summarized the recent research progress on photoresponsive drug/gene delivery, and two major categories of delivery systems were discussed. The first category is the direct responsive systems that experience photoreactions on the vehicle or drug themselves, and different materials as well as chemical structures responsive to UV, visible, and NIR light are summarized. The second category is the indirect responsive systems that require a light-generated mediator signal, such as heat, ROS, hypoxia, and gas molecules, to cascadingly trigger the structural transformation. The future outlook and challenges are also discussed at the end.
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Affiliation(s)
- Yang Zhou
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Huan Ye
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Yongbing Chen
- Department of Cardiothoracic Surgery , The Second Affiliated Hospital of Soochow University , Suzhou 215004 , China
| | - Rongying Zhu
- Department of Cardiothoracic Surgery , The Second Affiliated Hospital of Soochow University , Suzhou 215004 , China
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
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14
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Abbadi BL, Rodrigues-Junior VDS, Dadda ADS, Pissinate K, Villela AD, Campos MM, Lopes LGDF, Bizarro CV, Machado P, Sousa EHS, Basso LA. Is IQG-607 a Potential Metallodrug or Metallopro-Drug With a Defined Molecular Target in Mycobacterium tuberculosis? Front Microbiol 2018; 9:880. [PMID: 29765372 PMCID: PMC5938375 DOI: 10.3389/fmicb.2018.00880] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022] Open
Abstract
The emergence of strains of Mycobacterium tuberculosis resistant to isoniazid (INH) has underscored the need for the development of new anti-tuberculosis agents. INH is activated by the mycobacterial katG-encoded catalase-peroxidase, forming an acylpyridine fragment that is covalently attached to the C4 of NADH. This isonicotinyl-NAD adduct inhibits the activity of 2-trans-enoyl-ACP(CoA) reductase (InhA), which plays a role in mycolic acid biosynthesis. A metal-based INH analog, Na3[FeII(CN)5(INH)]·4H2O, IQG-607, was designed to have an electronic redistribution on INH moiety that would lead to an intramolecular electron transfer to bypass KatG activation. HPLC and EPR studies showed that the INH moiety can be oxidized by superoxide or peroxide yielding similar metabolites and isonicotinoyl radical only when associated to IQG-607, thereby supporting redox-mediated drug activation as a possible mechanism of action. However, IQG-607 was shown to inhibit the in vitro activity of both wild-type and INH-resistant mutant InhA enzymes in the absence of KatG activation. IQG-607 given by the oral route to M. tuberculosis-infected mice reduced lung lesions. Experiments using early and late controls of infection revealed a bactericidal activity for IQG-607. HPLC and voltammetric methods were developed to quantify IQG-607. Pharmacokinetic studies showed short half-life, high clearance, moderate volume of distribution, and low oral bioavailability, which was not altered by feeding. Safety and toxic effects of IQG-607 after acute and 90-day repeated oral administrations in both rats and minipigs showed occurrence of mild to moderate toxic events. Eight multidrug-resistant strains (MDR-TB) were resistant to IQG-607, suggesting an association between katG mutation and increasing MIC values. Whole genome sequencing of three spontaneous IQG-607-resistant strains harbored katG gene mutations. MIC measurements and macrophage infection experiments with a laboratorial strain showed that katG mutation is sufficient to confer resistance to IQG-607 and that the macrophage intracellular environment cannot trigger the self-activation mechanism. Reduced activity of IQG-607 against an M. tuberculosis strain overexpressing S94A InhA mutant protein suggested both the need for KatG activation and InhA as its target. Further efforts are suggested to be pursued toward attempting to translate IQG-607 into a chemotherapeutic agent to treat tuberculosis.
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Affiliation(s)
- Bruno L Abbadi
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Valnês da Silva Rodrigues-Junior
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Adilio da Silva Dadda
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Kenia Pissinate
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Anne D Villela
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Maria M Campos
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luiz G de França Lopes
- Grupo de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Cristiano V Bizarro
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Pablo Machado
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Eduardo H S Sousa
- Grupo de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Luiz A Basso
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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15
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Batista RC, da Silva Miranda F, Pinheiro CB, Lanznaster M. An Esculetin-Cobalt(III) Archetype for Redox-Activated Drug Delivery Platforms with Hypoxic Selectivity. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Renata Crispim Batista
- Instituto de Química; Universidade Federal Fluminense; Outeiro S J Batista SN 24020-141 Niterói RJ Brasil
| | - Fabio da Silva Miranda
- Instituto de Química; Universidade Federal Fluminense; Outeiro S J Batista SN 24020-141 Niterói RJ Brasil
| | - Carlos Basílio Pinheiro
- Departamento de Física; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Belo Horizonte MG Brasil
| | - Mauricio Lanznaster
- Instituto de Química; Universidade Federal Fluminense; Outeiro S J Batista SN 24020-141 Niterói RJ Brasil
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16
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Areas ES, Bronsato BJDS, Pereira TM, Guedes GP, Miranda FDS, Kümmerle AE, da Cruz AGB, Neves AP. Novel Co III complexes containing fluorescent coumarin-N-acylhydrazone hybrid ligands: Synthesis, crystal structures, solution studies and DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 187:130-142. [PMID: 28683368 DOI: 10.1016/j.saa.2017.06.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/05/2017] [Accepted: 06/24/2017] [Indexed: 06/07/2023]
Abstract
A series of new CoIII complexes of the type [Co(dien)(L1-L3)]ClO4 (1-3), containing fluorescent coumarin-N-acylhydrazonate hybrid ligands, (E)-N'-(1-(7-oxido-2-oxo-2H-chromen-3-yl)ethylidene)-4-R-benzohydrazonate [where R=H (L12-), OCH3 (L22-) or Cl (L32-)], were obtained and isolated in the low spin CoIII configuration. Single-crystal X-ray diffraction showed that the coumarin-N-acylhydrazones act as tridentate ligands in their deprotonated form (L2-). The cation (+1) complexes contain a diethylenetriamine (dien) as auxiliary ligand and their structures were calculated by DFT studies which were also performed for the CoII (S=1/2 and S=3/2) configurations. The LS CoII (S=1/2) concentrated the spin density on the O-Co-O axis while the HS CoII (S=3/2) exhibited a broad spin density distribution around the metallic center. Cyclic voltammetry studies showed that structural modifications made in the L2- ligands caused a slight influence on the electronic density of the metal center, and the E1/2 values for the CoIII/CoII redox couple increased following the electronic effect of the R-substituent, in the order: 2 (R=OCH3)<1 (R=H)<3 (R=Cl). The theoretical redox potentials (E°) of the process CoIII→CoII were calculated for both CoII spin states (S=1/2 and S=3/2) and a better correlation was found for CoIII→CoII (S=1/2), compared with experimental values vs SHE (E°calc=-0.37, -0.36 and -0.32V vs E°exp.=-0.371, -0.406 and -0.358V, for 1-3 respectively). Complexes 1-3 exhibited a very intense absorption band around 470nm, assigned by DFT calculations as π-π* transitions from the delocalized coumarin-N-acylhydrazone system. 1-3 were very stable in MeOH for several days. Likewise, 1-3 were stable in phosphate buffer containing sodium ascorbate after 15h, which was attributed to the high chelate effect and σ-donor ability of the L2- and dien ligands.
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Affiliation(s)
- Esther S Areas
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Bruna Juliana da S Bronsato
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Thiago M Pereira
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Guilherme P Guedes
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Fábio da S Miranda
- Instituto de Química, Universidade Federal Fluminense, 24020-150 Niterói, RJ, Brazil
| | - Arthur E Kümmerle
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Antônio G B da Cruz
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Amanda P Neves
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil.
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17
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Zhao J, Zhi S, Yu H, Zhang J, Zhang J, Hu J. Synthesis, crystal structure, DNA/BSA interaction and in vitro antitumor activity of N-heterocycle Cu(II) and Co(II) complexes. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1372573] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jin’an Zhao
- College of Chemical and Material Engineering, Henan University of Urban Construction, Henan, P.R. China
| | - Shuangcheng Zhi
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P.R. China
| | - Huaibin Yu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P.R. China
| | - Jin Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P.R. China
| | - Junshuai Zhang
- College of Chemical and Material Engineering, Henan University of Urban Construction, Henan, P.R. China
| | - Jiyong Hu
- College of Chemical and Material Engineering, Henan University of Urban Construction, Henan, P.R. China
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18
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Pogány L, Moncol J, Gál M, Šalitroš I, Boča R. Four cobalt(III) Schiff base complexes – Structural, spectroscopic and electrochemical studies. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Dang J, He H, Chen D, Yin L. Manipulating tumor hypoxia toward enhanced photodynamic therapy (PDT). Biomater Sci 2017; 5:1500-1511. [DOI: 10.1039/c7bm00392g] [Citation(s) in RCA: 199] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This mini-review summarizes various methods for overcoming or utilizing hypoxia for enhanced PDT.
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Affiliation(s)
- Juanjuan Dang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano and Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P.R. China
| | - Hua He
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano and Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P.R. China
| | - Donglai Chen
- Department of Thoracic Surgery
- Shanghai Pulmonary Hospital
- Tongji University School of Medicine
- Shanghai
- P.R. China
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano and Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P.R. China
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20
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da Silva AFM, Vital RDU, Martins DDL, da Rocha DR, Ferreira GB, Camargos Resende JAL, Lanznaster M. Investigation of cobalt(iii)–TPA complexes as potential bioreductively activated carriers for naphthoquinone-based drugs. NEW J CHEM 2017. [DOI: 10.1039/c7nj03072j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Differently from CH3, halogens as substituents foster incorporation of methoxide into NQs upon complexation.
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21
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Liu B, Liu Y, Chai J, Hu X, Wu D, Yang B. Chemical properties and biotoxicity of several chromium picolinate derivatives. J Inorg Biochem 2016; 164:110-118. [DOI: 10.1016/j.jinorgbio.2016.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/31/2016] [Accepted: 09/13/2016] [Indexed: 11/25/2022]
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22
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Kouris E, Kalogiannis S, Perdih F, Turel I, Psomas G. Cobalt(II) complexes of sparfloxacin: Characterization, structure, antimicrobial activity and interaction with DNA and albumins. J Inorg Biochem 2016; 163:18-27. [DOI: 10.1016/j.jinorgbio.2016.07.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/14/2016] [Accepted: 07/27/2016] [Indexed: 12/30/2022]
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23
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de Souza ICA, Faro LV, Pinheiro CB, Gonzaga DTG, da Silva FDC, Ferreira VF, Miranda FDS, Scarpellini M, Lanznaster M. Investigation of cobalt(iii)-triazole systems as prototypes for hypoxia-activated drug delivery. Dalton Trans 2016; 45:13671-4. [DOI: 10.1039/c6dt02456d] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel cobalt(iii)-triazole system was developed for hypoxia-activated drug delivery with an [O2]-dependent reduction to cobalt(ii) followed by ligand dissociation.
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