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Almeida CM, Nascimento ÉCM, Martins JBL, da Mota THA, de Oliveira DM, Gatto CC. Crystal Design, Antitumor Activity and Molecular Docking of Novel Palladium(II) and Gold(III) Complexes with a Thiosemicarbazone Ligand. Int J Mol Sci 2023; 24:11442. [PMID: 37511201 PMCID: PMC10380234 DOI: 10.3390/ijms241411442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The current research describes the synthesis and characterization of 2-acetylpyridine N(4)-cyclohexyl-thiosemicarbazone ligand (HL) and their two metal complexes, [Au(L)Cl][AuCl2] (1) and [Pd(L)Cl]·DMF (2). The molecular structures of the compounds were determined by physicochemical and spectroscopic methods. Single crystal X-ray diffraction was employed in the structural elucidation of the new complexes. The complexes showed a square planar geometry to the metal center Au(III) and Pd(II), coordinated with a thiosemicarbazone molecule by the NNS-donor system and a chloride ion. Complex (1) also shows the [AuCl2]- counter-ion in the asymmetric unit, and complex (2) has one DMF solvent molecule. These molecules play a key role in the formation of supramolecular structures due to different interactions. Noncovalent interactions were investigated through the 3D Hirshfeld surface by the dnorm function and the 2D fingerprint plots. The biological activity of the compounds was evaluated in vitro against the human glioma U251 cells. The cytotoxicity results revealed great antitumor activity in complex (1) compared with complex (2) and the free ligand. Molecular docking simulations were used to predict interactions and properties with selected proteins and DNA of the synthesized compounds.
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Affiliation(s)
- Carolane M Almeida
- University of Brasilia, Institute of Chemistry, Laboratory of Inorganic Synthesis and Crystallography, Brasília 70904-970, Brazil
| | - Érica C M Nascimento
- University of Brasilia, Institute of Chemistry, Laboratory of Computational Chemistry, Brasília 70904-970, Brazil
| | - João B L Martins
- University of Brasilia, Institute of Chemistry, Laboratory of Computational Chemistry, Brasília 70904-970, Brazil
| | - Tales H A da Mota
- University of Brasilia, Faculty UnB Ceilândia, Multidisciplinary Laboratory of Human Health, Brasília 72220-275, Brazil
| | - Diêgo M de Oliveira
- University of Brasilia, Faculty UnB Ceilândia, Multidisciplinary Laboratory of Human Health, Brasília 72220-275, Brazil
| | - Claudia C Gatto
- University of Brasilia, Institute of Chemistry, Laboratory of Inorganic Synthesis and Crystallography, Brasília 70904-970, Brazil
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2
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González-García C, García-Pascual C, Burón R, Calatayud DG, Perles J, Antonia Mendiola M, López-Torres E. Structural variety, fluorescence and photocatalytic activity of dissymmetric thiosemicarbazone complexes. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Ernst MJ, Roca Jungfer M, Hagenbach A, Abram U. Triaryltechnetium(III) and Related Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moritz Johannes Ernst
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstrasse 34/36, D-14195 Berlin, Germany
| | - Maximilian Roca Jungfer
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstrasse 34/36, D-14195 Berlin, Germany
| | - Adelheid Hagenbach
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstrasse 34/36, D-14195 Berlin, Germany
| | - Ulrich Abram
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstrasse 34/36, D-14195 Berlin, Germany
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Hyun Kim J, Ofori S, Mertens RT, Parkin S, Awuah SG. Water-Soluble Gold(III)-Metformin Complex Alters Mitochondrial Bioenergetics in Breast Cancer Cells. ChemMedChem 2021; 16:3222-3230. [PMID: 34159760 PMCID: PMC8526394 DOI: 10.1002/cmdc.202100233] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/16/2021] [Indexed: 12/30/2022]
Abstract
Chemical control of mitochondrial dynamics and bioenergetics can unravel fundamental biological mechanisms and therapeutics for several diseases including, diabetes and cancer. We synthesized stable, water-soluble gold(III) complexes (Auraformin) supported by biguanide metformin or phenylmetformin for efficacious inhibition of mitochondrial respiration. The new compounds were characterized following the reaction of [C N]-cyclometalated gold(III) compounds with respective biguanides. Auraformin is solution stable in a physiologically relevant environment. We show that auraformin decreases mitochondrial respiration efficiently in comparison to the clinically used metformin by 100-fold. The compound displays significant mitochondrial uptake and induces antiproliferative activity in the micromolar range. Our results shed light on the development of new scaffolds as improved inhibitors of mitochondrial respiration.
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Affiliation(s)
- Jong Hyun Kim
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506, USA
| | - Samuel Ofori
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506, USA
| | - R Tyler Mertens
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506, USA
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506, USA
| | - Samuel G Awuah
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506, USA
- Department of Pharmaceutical Sciences, University of Kentucky, 789 South Limestone Street, Lexington, KY 40506, USA
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Grödler D, Haseloer A, Tobeck C, Bulut Y, Neudörfl JM, Mathur S, Ruschewitz U, Klein A, Wickleder MS, Zegke M. Thiosemicarbazone Complexes of Uranium(IV). Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dennis Grödler
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Alexander Haseloer
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Christian Tobeck
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Yusuf Bulut
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Jörg M. Neudörfl
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Sanjay Mathur
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Uwe Ruschewitz
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Axel Klein
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Mathias S. Wickleder
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
| | - Markus Zegke
- Department of Chemistry University of Cologne Greinstr. 4–6 50939 Cologne Germany
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Haseloer A, Lützenburg T, Strache JP, Neudörfl J, Neundorf I, Klein A. Building up Pt II -Thiosemicarbazone-Lysine-sC18 Conjugates. Chembiochem 2021; 22:694-704. [PMID: 32909347 PMCID: PMC7894172 DOI: 10.1002/cbic.202000564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/03/2020] [Indexed: 12/12/2022]
Abstract
Three chiral tridentate N^N^S coordinating pyridine-carbaldehyde (S)-N4-(α-methylbenzyl)thiosemicarbazones (HTSCmB) were synthesised along with lysine-modified derivatives. One of them was selected and covalently conjugated to the cell-penetrating peptide sC18 by solid-phase peptide synthesis. The HTSCmB model ligands, the HTSCLp derivatives and the peptide conjugate rapidly and quantitatively form very stable PtII chlorido complexes [Pt(TSC)Cl] when treated with K2 PtCl4 in solution. The Pt(CN) derivatives were obtained from one TSCmB model complex and the peptide conjugate complex through Cl- →CN- exchange. Ligands and complexes were characterised by NMR, IR spectroscopy, HR-ESI-MS and single-crystal XRD. Intriguingly, no decrease in cell viability was observed when testing the biological activity of the lysine-tagged HdpyTSCLp, its sC18 conjugate HdpyTSCL-sC18 or the PtCl and Pt(CN) conjugate complexes in three different cell lines. Thus, given the facile and effective preparation of such Pt-TSC-peptide conjugates, these systems might pave the way for future use in late-stage labelling with Pt radionuclides and application in nuclear medicine.
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Affiliation(s)
- Alexander Haseloer
- Universität zu Köln, Department für ChemieInstitut für Anorganische ChemieGreinstraße 650939KölnGermany
| | - Tamara Lützenburg
- Universität zu KölnDepartment für Chemie, Institut für BiochemieZülpicher Strasse 47a50674KölnGermany
| | - Joss Pepe Strache
- Universität zu Köln, Department für ChemieInstitut für Anorganische ChemieGreinstraße 650939KölnGermany
| | - Jörg Neudörfl
- Universität zu KölnDepartment für Chemie, Institut für Organische ChemieGreinstraße 450939KölnGermany
| | - Ines Neundorf
- Universität zu KölnDepartment für Chemie, Institut für BiochemieZülpicher Strasse 47a50674KölnGermany
| | - Axel Klein
- Universität zu Köln, Department für ChemieInstitut für Anorganische ChemieGreinstraße 650939KölnGermany
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Providello MV, Portapilla GB, Oliveira PAS, da Silva CBP, Anchieta NF, Tirapelli CR, de Albuquerque S. Melatonin decreases circulating Trypanosoma cruzi load with no effect on tissue parasite replication. Can J Physiol Pharmacol 2020; 99:795-802. [PMID: 33296274 DOI: 10.1139/cjpp-2020-0473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cardiac damage during the acute phase of Chagas disease (CD) is associated with an increase in pro-inflammatory markers and oxidative stress. Melatonin (MEL) has emerged as a promising therapy for CD due to its antioxidant and immunomodulatory properties; however, the protective action of MEL in the cardiac tissue, as well as its direct action on the parasite cycle, is not fully understood. We investigated the effects of MEL on heart parasitism in mice infected with Trypanosoma cruzi and also its effects on the parasitic proliferation in vitro. Our in vivo study showed that MEL reduced circulating parasitemia load, but did not control tissue (heart, liver, and spleen) parasitism in mice. MEL did not prevent the redox imbalance in the left ventricle of infected mice. Our in vitro findings showed that MEL did not inhibit parasites replication within cells, but rather increased their release from cells. MEL did not control parasitism load in the heart or prevent the cardiac redox imbalance induced by acute T. cruzi infection. The hormone controlled the circulating parasitic load, but within cells MEL accelerated parasitic release, a response that can be harmful.
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Affiliation(s)
- Maiara Voltarelli Providello
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, DACTB, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Gisele Bulhões Portapilla
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, DACTB, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Pedro Alexandre Sampaio Oliveira
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, DACTB, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Carla Brigagão Pacheco da Silva
- Laboratório de Farmacologia, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Naira Ferreira Anchieta
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, DACTB, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Carlos Renato Tirapelli
- Laboratório de Farmacologia, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Sérgio de Albuquerque
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, DACTB, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
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Salsi F, Roca Jungfer M, Hagenbach A, Abram U. Trigonal‐Bipyramidal vs. Octahedral Coordination in Indium(III) Complexes with Potentially
S,N,S
‐Tridentate Thiosemicarbazones. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Federico Salsi
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
| | - Maximilian Roca Jungfer
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
| | - Adelheid Hagenbach
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
| | - Ulrich Abram
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
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