101
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Fratoddi I, Venditti I, Battocchio C, Carlini L, Amatori S, Porchia M, Tisato F, Bondino F, Magnano E, Pellei M, Santini C. Highly Hydrophilic Gold Nanoparticles as Carrier for Anticancer Copper(I) Complexes: Loading and Release Studies for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E772. [PMID: 31137492 PMCID: PMC6567210 DOI: 10.3390/nano9050772] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/15/2019] [Indexed: 02/07/2023]
Abstract
Gold nanoparticles (AuNPs), which are strongly hydrophilic and dimensionally suitable for drug delivery, were used in loading and release studies of two different copper(I)-based antitumor complexes, namely [Cu(PTA)4]+ [BF4]- (A; PTA = 1, 3, 5-triaza-7-phosphadamantane) and [HB(pz)3Cu(PCN)] (B; HB(pz)3 = tris(pyrazolyl)borate, PCN = tris(cyanoethyl)phosphane). In the homoleptic, water-soluble compound A, the metal is tetrahedrally arranged in a cationic moiety. Compound B is instead a mixed-ligand (scorpionate/phosphane), neutral complex insoluble in water. In this work, the loading procedures and the loading efficiency of A and B complexes on the AuNPs were investigated, with the aim to improve their bioavailability and to obtain a controlled release. The non-covalent interactions of A and B with the AuNPs surface were studied by means of dynamic light scattering (DLS), UV-Vis, FT-IR and high-resolution x-ray photoelectron spectroscopy (HR-XPS) measurements. As a result, the AuNPs-A system proved to be more stable and efficient than the AuNPs-B system. In fact, for AuNPs-A the drug loading reached 90%, whereas for AuNPs-B it reached 65%. For AuNPs-A conjugated systems, a release study in water solution was performed over 4 days, showing a slow release up to 10%.
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Affiliation(s)
- Ilaria Fratoddi
- Chemistry Department Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Iole Venditti
- Sciences Department Roma Tre University of Rome, via della Vasca navale 79, 00146 Rome Italy.
| | - Chiara Battocchio
- Sciences Department Roma Tre University of Rome, via della Vasca navale 79, 00146 Rome Italy.
| | - Laura Carlini
- Sciences Department Roma Tre University of Rome, via della Vasca navale 79, 00146 Rome Italy.
| | - Simone Amatori
- Chemistry Department Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Marina Porchia
- ICMATE, National Research Council (CNR), Corso Stati Uniti, 4-35127 Padua, Italy.
| | - Francesco Tisato
- ICMATE, National Research Council (CNR), Corso Stati Uniti, 4-35127 Padua, Italy.
| | - Federica Bondino
- IOM-CNR Laboratorio TASC, SS 14, km 163,5 Basovizza, I-34149 Trieste, Italy.
| | - Elena Magnano
- IOM-CNR Laboratorio TASC, SS 14, km 163,5 Basovizza, I-34149 Trieste, Italy.
| | - Maura Pellei
- School of Science and Technology, University of Camerino, 62032 Camerino (MC) Italy.
| | - Carlo Santini
- School of Science and Technology, University of Camerino, 62032 Camerino (MC) Italy.
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102
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Copper (II) Ions Activate Ligand-Independent Receptor Tyrosine Kinase (RTK) Signaling Pathway. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4158415. [PMID: 31218225 PMCID: PMC6537018 DOI: 10.1155/2019/4158415] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/15/2019] [Accepted: 04/28/2019] [Indexed: 11/29/2022]
Abstract
Receptor tyrosine kinase (RTK) is activated by its natural ligand, mediating multiple essential biological processes. Copper (II) ions are bioactive ions and are crucial in the regulation of cell signaling pathway. However, the crosstalk between copper (II) ions and RTK-mediated cellular signaling remains unclear. Herein, we reported the effect of copper (II) ions on the ligand-independent RTK cellular signaling pathway. Our results indicate that both EGFR and MET signaling were activated by copper (II) in the absence of the corresponding ligands, EGF and HGF, respectively. Consequently, copper (II) ions initiate two RTK-mediated downstream signal transductions, including AKT and ERK. Moreover, copper (II) significantly increased proliferation and cellular migration. Our study proposes a novel role of copper in RTK-mediated signaling for growth factor-independent cancer cell proliferation and migration, implying that targeting both the copper (II) and growth factor in tumor microenvironments may be necessary for cancer treatment.
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103
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Tan SW, Chen PJ, Sun YS, Chou SE, Lin FY, Lo KY. Establishing a quick screening method by using a microfluidic chip to evaluate cytotoxicity of metal contaminants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:1058-1066. [PMID: 30266051 DOI: 10.1016/j.scitotenv.2018.09.217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 08/28/2018] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
Due to rapid industrialization and urbanization, the environment is exposed to many chemicals from natural or anthropogenic sources. The contaminants impact eco-system and human health via food chain. Animals, including humans, are likely to accumulate contaminants in their bodies from direct exposure or feeding behavior, resulting in toxicity. Therefore, evaluation of the toxicity of contaminants is an important issue. Metals are highly toxic but the toxicity depends on many factors, including the valance and the complex form of metals, the organic matter level in the environment, the reducing/oxidizing condition of the environment, and etc. Since the level of metal amount does not directly correlate to bioavailability, cell culture is usually used for toxicity evaluation. In this study, a microfluidic chip was developed to evaluate the cell toxicity from exposure to metals, copper and thallium. Compared to traditional cytotoxicity assay using static state culture with tetrazolium reagent, this microfluidic chip can generate various shear stresses by changing geometry of culture areas or flow rate. Enhancement of shear stresses could increase cell sensitivity toward metal exposure. Therefore, this platform provides a more sensitive platform for quantitative analysis of cell toxicity and could be applied to evaluate toxicity from environmental samples.
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Affiliation(s)
- Shih-Wei Tan
- Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Pei-Jen Chen
- Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yung-Shin Sun
- Department of Physics, Fu-Jen Catholic University, New Taipei City 24205, Taiwan
| | - Shih-En Chou
- Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Fong-Yi Lin
- Department of Physics, Fu-Jen Catholic University, New Taipei City 24205, Taiwan
| | - Kai-Yin Lo
- Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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104
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A Case for Not Going Global: "Americanization" of Diet Accelerates Hepatic Mitochondrial Injury in a Model of Wilson Disease. Cell Mol Gastroenterol Hepatol 2019; 7:684-685. [PMID: 30707887 PMCID: PMC6477543 DOI: 10.1016/j.jcmgh.2019.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 01/07/2023]
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105
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Stewart LJ, Thaqi D, Kobe B, McEwan AG, Waldron KJ, Djoko KY. Handling of nutrient copper in the bacterial envelope. Metallomics 2019; 11:50-63. [DOI: 10.1039/c8mt00218e] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The insertion of copper into bacterial cuproenzymesin vivodoes not always require a copper-binding metallochaperone – why?
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Affiliation(s)
- Louisa J. Stewart
- Institute for Cell and Molecular Biosciences
- Newcastle University
- Newcastle upon Tyne
- UK
| | - Denis Thaqi
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre
- The University of Queensland
- St Lucia
- Australia
| | - Bostjan Kobe
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre
- The University of Queensland
- St Lucia
- Australia
- Institute for Molecular Bioscience
| | - Alastair G. McEwan
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre
- The University of Queensland
- St Lucia
- Australia
| | - Kevin J. Waldron
- Institute for Cell and Molecular Biosciences
- Newcastle University
- Newcastle upon Tyne
- UK
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106
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Carlotto S, Bonna A, Bossak-Ahmad K, Bal W, Porchia M, Casarin M, Tisato F. Coordinative unsaturated CuI entities are crucial intermediates governing cell internalization of copper. A combined experimental ESI-MS and DFT study. Metallomics 2019; 11:1800-1804. [DOI: 10.1039/c9mt00236g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Model peptides relevant to hCtr1 transchelate CuI from the anti-tumour [CuI(PTA)4]+ complex before metal internalization into tumor cells.
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Affiliation(s)
- Silvia Carlotto
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Via Marzolo 1
- 35131 Padova
- Italy
| | - Arkadiusz Bonna
- Department of Biochemistry
- University of Cambridge
- Tennis Court Road
- Cambridge
- UK
| | - Karolina Bossak-Ahmad
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences, Pawińskiego 5a
- 02-106 Warsaw
- Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences, Pawińskiego 5a
- 02-106 Warsaw
- Poland
| | | | - Maurizio Casarin
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Via Marzolo 1
- 35131 Padova
- Italy
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107
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Santoro A, Vileno B, Palacios Ò, Peris-Díaz MD, Riegel G, Gaiddon C, Krężel A, Faller P. Reactivity of Cu(ii)–, Zn(ii)– and Fe(ii)–thiosemicarbazone complexes with glutathione and metallothionein: from stability to dissociation to transmetallation. Metallomics 2019; 11:994-1004. [DOI: 10.1039/c9mt00061e] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Metallothionein and glutathione are key players of the fate of Cu(ii)–/Zn(ii)–/Fe(ii)–thiosemicarbazone anticancer drugs in the cytosol/nucleus.
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Affiliation(s)
- Alice Santoro
- Institut de Chimie
- UMR 7177
- CNRS-Université de Strasbourg
- Strasbourg
- France
| | - Bertrand Vileno
- Institut de Chimie
- UMR 7177
- CNRS-Université de Strasbourg
- Strasbourg
- France
| | - Òscar Palacios
- Departament de Química
- Universitat Autònoma de Barcelona
- E-08193 Cerdanyola del Vallès
- Spain
| | | | - Gilles Riegel
- Inserm UMR_S 1113
- Université de Strasbourg
- Strasbourg
- France
| | | | - Artur Krężel
- Department of Chemical Biology
- Faculty of Biotechnology
- University of Wrocław
- Wrocław
- Poland
| | - Peter Faller
- Institut de Chimie
- UMR 7177
- CNRS-Université de Strasbourg
- Strasbourg
- France
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108
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Barca A, Ippati S, Urso E, Vetrugno C, Storelli C, Maffia M, Romano A, Verri T. Carnosine modulates the Sp1-Slc31a1/Ctr1 copper-sensing system and influences copper homeostasis in murine CNS-derived cells. Am J Physiol Cell Physiol 2018; 316:C235-C245. [PMID: 30485136 DOI: 10.1152/ajpcell.00106.2018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carnosine (CAR) is an endogenous dipeptide physiologically present in excitable tissues, such as central nervous system (CNS) and muscle. CAR is acknowledged as a substrate involved in many homeostatic pathways and mechanisms and, due to its biochemical properties, as a molecule intertwined with the homeostasis of heavy metals such as copper (Cu). In CNS, Cu excess and dysregulation imply oxidative stress, free-radical production, and functional impairment leading to neurodegeneration. Here, we report that CAR intercepts the regulatory routes of Cu homeostasis in nervous cells and tissues. Specifically, in a murine neuron-derived cell model, i.e., the B104 neuroblastoma cells, extracellular CAR exposure up to 24 h influenced intracellular Cu entry and affected (downregulated) the key Cu-sensing system, consisting of the gene coding for the Slc31a1 transmembrane Cu importer (alias Ctr1), and the gene coding for the Cu-responsive transcription factor Sp1 ( Sp1). Also, CAR exposure upregulated CAR biosynthesis ( Carns1), extracellular degradation ( Cndp1), and transport ( Slc15a4, alias Pht1) genes and elicited CAR intracellular accumulation, contributing to the outline of functional association between CAR and Cu within the cell. Interestingly, the same gene modulation scheme acting in vitro operates in vivo in brains of mice undergoing dietary administration of CAR in drinking water for 2 wk. Overall, our findings describe for the first time a regulatory interaction between CAR and Cu pathways in CNS and indicate CAR as a novel active molecule within the network of ligands and chaperones that physiologically regulate Cu homeostasis.
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Affiliation(s)
- Amilcare Barca
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Stefania Ippati
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Emanuela Urso
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Carla Vetrugno
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Carlo Storelli
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Michele Maffia
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Alessandro Romano
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, San Raffaele Scientific Institute , Milan , Italy
| | - Tiziano Verri
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
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109
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Paredes E, Avazeri E, Malard V, Vidaud C, Reiller PE, Ortega R, Nonell A, Isnard H, Chartier F, Bresson C. Impact of uranium uptake on isotopic fractionation and endogenous element homeostasis in human neuron-like cells. Sci Rep 2018; 8:17163. [PMID: 30464301 PMCID: PMC6249223 DOI: 10.1038/s41598-018-35413-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 11/05/2018] [Indexed: 12/15/2022] Open
Abstract
The impact of natural uranium (U) on differentiated human neuron-like cells exposed to 1, 10, 125, and 250 µM of U for seven days was assessed. In particular, the effect of the U uptake on the homeostatic modulation of several endogenous elements (Mg, P, Mn, Fe, Zn, and Cu), the U isotopic fractionation upon its incorporation by the cells and the evolution of the intracellular Cu and Zn isotopic signatures were studied. The intracellular accumulation of U was accompanied by a preferential uptake of 235U for cells exposed to 1 and 10 µM of U, whereas no significant isotopic fractionation was observed between the extra- and the intracellular media for higher exposure U concentrations. The U uptake was also found to modulate the homeostasis of Cu, Fe, and Mn for cells exposed to 125 and 250 µM of U, but the intracellular Cu isotopic signature was not modified. The intracellular Zn isotopic signature was not modified either. The activation of the non-specific U uptake pathway might be related to this homeostatic modulation. All together, these results show that isotopic and quantitative analyses of toxic and endogenous elements are powerful tools to help deciphering the toxicity mechanisms of heavy metals.
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Affiliation(s)
- Eduardo Paredes
- Den - Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette, France
| | - Emilie Avazeri
- CEA, DRF, Biosciences and biotechnologies institute (BIAM), F-30200, Bagnols-sur-Cèze, France
| | - Véronique Malard
- Laboratory of Protein-Metal Interactions (LIPM), Institute of Biosciences and Biotechnologies of Aix Marseille (BIAM), UMR7265 CEA - CNRS - Aix Marseille Univ, CEA Cadarache, F-13108, Cadarache, France
| | - Claude Vidaud
- CEA, DRF, Biosciences and biotechnologies institute (BIAM), F-30200, Bagnols-sur-Cèze, France
| | - Pascal E Reiller
- Den - Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette, France
| | - Richard Ortega
- University of Bordeaux, CENBG, UMR 5797, F-33170, Gradignan, France.,CNRS, IN2P3, CENBG, UMR 5797, F-33170, Gradignan, France
| | - Anthony Nonell
- Den - Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette, France
| | - Hélène Isnard
- Den - Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette, France
| | - Frédéric Chartier
- Den - Département de Physico-Chimie (DPC), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette, France
| | - Carole Bresson
- Den - Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette, France.
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110
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Lugli F, Cipriani A. Comment on: metals in bones of the middle-aged inhabitants of Sardinia island (Italy) to assess nutrition and environmental exposure [Bocca et al. (2018), Environ Sci Pollut Res]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:33827-33831. [PMID: 30267343 DOI: 10.1007/s11356-018-3330-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 09/25/2018] [Indexed: 04/15/2023]
Affiliation(s)
- Federico Lugli
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi, 103-41125, Modena, Italy.
- Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121, Ravenna, Italy.
| | - Anna Cipriani
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi, 103-41125, Modena, Italy
- Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York, 10964, USA
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111
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Santoro A, Walke G, Vileno B, Kulkarni PP, Raibaut L, Faller P. Low catalytic activity of the Cu(ii)-binding motif (Xxx-Zzz-His; ATCUN) in reactive oxygen species production and inhibition by the Cu(i)-chelator BCS. Chem Commun (Camb) 2018; 54:11945-11948. [PMID: 30288543 DOI: 10.1039/c8cc06040a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The catalytic redox activity of Cu(ii) bound to the motif NH2-Xxx-Zzz-His (ATCUN) with ascorbate and H2O2/O2 is very low and can be stopped via Cu(i)-chelation. This impacts its application as an artificial Cu-enzyme to degrade biomolecules via production of reactive oxygen species in a Cu(i)-chelator rich environment like the cytosol.
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Affiliation(s)
- Alice Santoro
- Institut de Chimie, UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France.
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112
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Kardos J, Héja L, Simon Á, Jablonkai I, Kovács R, Jemnitz K. Copper signalling: causes and consequences. Cell Commun Signal 2018; 16:71. [PMID: 30348177 PMCID: PMC6198518 DOI: 10.1186/s12964-018-0277-3] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 09/24/2018] [Indexed: 12/18/2022] Open
Abstract
Copper-containing enzymes perform fundamental functions by activating dioxygen (O2) and therefore allowing chemical energy-transfer for aerobic metabolism. The copper-dependence of O2 transport, metabolism and production of signalling molecules are supported by molecular systems that regulate and preserve tightly-bound static and weakly-bound dynamic cellular copper pools. Disruption of the reducing intracellular environment, characterized by glutathione shortage and ambient Cu(II) abundance drives oxidative stress and interferes with the bidirectional, copper-dependent communication between neurons and astrocytes, eventually leading to various brain disease forms. A deeper understanding of of the regulatory effects of copper on neuro-glia coupling via polyamine metabolism may reveal novel copper signalling functions and new directions for therapeutic intervention in brain disorders associated with aberrant copper metabolism.
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Affiliation(s)
- Julianna Kardos
- Functional Pharmacology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok körútja 2, Budapest, 1117 Hungary
| | - László Héja
- Functional Pharmacology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok körútja 2, Budapest, 1117 Hungary
| | - Ágnes Simon
- Functional Pharmacology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok körútja 2, Budapest, 1117 Hungary
| | - István Jablonkai
- Functional Pharmacology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok körútja 2, Budapest, 1117 Hungary
| | - Richard Kovács
- Institute of Neurophysiology, Charité-Universitätsmedizin, Berlin, Germany
| | - Katalin Jemnitz
- Functional Pharmacology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok körútja 2, Budapest, 1117 Hungary
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113
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Siotto M, Squitti R. Copper imbalance in Alzheimer’s disease: Overview of the exchangeable copper component in plasma and the intriguing role albumin plays. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.05.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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114
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The emerging role of copper-64 radiopharmaceuticals as cancer theranostics. Drug Discov Today 2018; 23:1489-1501. [DOI: 10.1016/j.drudis.2018.04.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/02/2018] [Accepted: 04/03/2018] [Indexed: 12/12/2022]
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115
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Zischka H, Einer C. Mitochondrial copper homeostasis and its derailment in Wilson disease. Int J Biochem Cell Biol 2018; 102:71-75. [PMID: 29997057 DOI: 10.1016/j.biocel.2018.07.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/29/2018] [Accepted: 07/03/2018] [Indexed: 01/07/2023]
Abstract
In mitochondria, copper is a Janus-faced trace element. While it is the essential cofactor of the mitochondrial cytochrome c oxidase, a surplus of copper can be highly detrimental to these organelles. On the one hand, mitochondria are strictly dependent on adequate copper supply for proper respiratory function, and the molecular mechanisms for metalation of the cytochrome c oxidase have been largely characterized. On the other hand, copper overload impairs mitochondria and uncertainties exist concerning the molecular mechanisms for mitochondrial metal uptake, storage and release. The latter issue is of fundamental importance in Wilson disease, a genetic disease characterized by dysfunctional copper excretion from the liver. Prime consequences of the progressive copper accumulation in hepatocytes are increasing mitochondrial biophysical and biochemical deficits. Focusing on this two-sided aspect of mitochondrial copper, we review mitochondrial copper homeostasis but also the impact of excessive mitochondrial copper in Wilson disease.
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Affiliation(s)
- Hans Zischka
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Toxicology and Environmental Hygiene, Technical University of Munich, 80802 Munich, Germany.
| | - Claudia Einer
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany
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116
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Fukai T, Ushio-Fukai M, Kaplan JH. Copper transporters and copper chaperones: roles in cardiovascular physiology and disease. Am J Physiol Cell Physiol 2018; 315:C186-C201. [PMID: 29874110 DOI: 10.1152/ajpcell.00132.2018] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Copper (Cu) is an essential micronutrient but excess Cu is potentially toxic. Its important propensity to cycle between two oxidation states accounts for its frequent presence as a cofactor in many physiological processes through Cu-containing enzymes, including mitochondrial energy production (via cytochrome c-oxidase), protection against oxidative stress (via superoxide dismutase), and extracellular matrix stability (via lysyl oxidase). Since free Cu is potentially toxic, the bioavailability of intracellular Cu is tightly controlled by Cu transporters and Cu chaperones. Recent evidence reveals that these Cu transport systems play an essential role in the physiological responses of cardiovascular cells, including cell growth, migration, angiogenesis and wound repair. In response to growth factors, cytokines, and hypoxia, their expression, subcellular localization, and function are tightly regulated. Cu transport systems and their regulators have also been linked to various cardiovascular pathophysiologies such as hypertension, inflammation, atherosclerosis, diabetes, cardiac hypertrophy, and cardiomyopathy. A greater appreciation of the central importance of Cu transporters and Cu chaperones in cell signaling and gene expression in cardiovascular biology offers the possibility of identifying new therapeutic targets for cardiovascular disease.
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Affiliation(s)
- Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University , Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University , Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center , Augusta Georgia
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University , Augusta, Georgia.,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University , Augusta, Georgia
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine , Chicago, Illinois
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117
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Bhattacharjee A, Chakraborty K, Shukla A. Cellular copper homeostasis: current concepts on its interplay with glutathione homeostasis and its implication in physiology and human diseases. Metallomics 2018; 9:1376-1388. [PMID: 28675215 DOI: 10.1039/c7mt00066a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper is a trace element essential for almost all living organisms. But the level of intracellular copper needs to be tightly regulated. Dysregulation of cellular copper homeostasis leading to various diseases demonstrates the importance of this tight regulation. Copper homeostasis is regulated not only within the cell but also within individual intracellular compartments. Inactivation of export machinery results in excess copper being redistributed into various intracellular organelles. Recent evidence suggests the involvement of glutathione in playing an important role in regulating copper entry and intracellular copper homeostasis. Therefore interplay of both homeostases might play an important role within the cell. Similar to copper, glutathione balance is tightly regulated within individual cellular compartments. This review explores the existing literature on the role of glutathione in regulating cellular copper homeostasis. On the one hand, interplay of glutathione and copper homeostasis performs an important role in normal physiological processes, for example neuronal differentiation. On the other hand, perturbation of the interplay might play a key role in the pathogenesis of copper homeostasis disorders.
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118
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Pokrowiecki R, Pałka K, Mielczarek A. Nanomaterials in dentistry: a cornerstone or a black box? Nanomedicine (Lond) 2018; 13:639-667. [DOI: 10.2217/nnm-2017-0329] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aim: The studies on tooth structure provided basis for nanotechnology-based dental treatment approaches known as nanodentistry which aims at detection and treatment of oral pathologies, such as dental caries and periodontal diseases, insufficiently being treated by conventional materials or drugs. This review aims at defining the role of nanodentistry in the medical area, its potential and hazards. Materials & methods: To validate these issues, current literature on nanomaterials for dental applications was critically reviewed. Results: Nanomaterials for teeth restoration, bone regeneration and oral implantology exhibit better mechanical properties and provide more efficient esthetic outcome. However, still little is known about influence of long-term function of such biomaterials in the living organism. Conclusion: As application of nanomaterials in industry and medical-related sciences is still expanding, more information is needed on how such nano-dental materials may interfere with oral cavity, GI tract and general health.
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Affiliation(s)
- Rafał Pokrowiecki
- Department of Head & Neck Surgery – Maxillofacial Surgery, Otolaryngology & Ophthalmology, Prof Stanislaw Popowski Voivoid Children Hospital, Żołnierska 18 A10-561 Olsztyn, Poland
| | - Krzysztof Pałka
- Faculty of Mechanical Engineering, Lublin University of Technology, Lublin, Poland
| | - Agnieszka Mielczarek
- Department of Conservative Dentistry, Medical University of Warsaw, Warsaw, Poland
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119
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Kosman DJ. The teleos of metallo-reduction and metallo-oxidation in eukaryotic iron and copper trafficking. Metallomics 2018; 10:370-377. [PMID: 29484341 DOI: 10.1039/c8mt00015h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Eukaryotic cells, whether free-living or organismal, rely on metallo-reductases to process environmental ferric iron and cupric copper prior to uptake. In addition, some free-living eukaryotes (e.g. fungi and algae) couple ferri-reduction to ferro-oxidation, a process catalyzed by a small cohort of multi-copper oxidases; in these organisms, the ferric iron product is a ligand for cell iron uptake via a ferric iron permease. In addition to their support of iron uptake in lower eukaryotes, ferroxidases support ferrous iron efflux in Chordata; in this process the release of the ferrous iron from the efflux transporter is catalyzed by its ferroxidation. Last, ferroxidases also catalyze the oxidation of cuprous copper and, as metallo-oxidases, mirror the dual activity of the metallo-reductases. This Perspective examines the teleos of the yin-yang of this redox cycling of iron and copper in their metabolism.
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Affiliation(s)
- Daniel J Kosman
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, The University at Buffalo, Farber Hall Room 140, 3435 Main St., Buffalo, NY 14214-3000, USA.
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120
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Kučírková T, Stiborek M, Dúcka M, Navrátilová J, Bogdanović Pristov J, Popović-Bijelić A, Vojvodić S, Preisler J, Kanický V, Šmarda J, Spasojević I, Beneš P. Anti-cancer effects of wedelolactone: interactions with copper and subcellular localization. Metallomics 2018; 10:1524-1531. [DOI: 10.1039/c8mt00191j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Wedelactone forms a 2 : 1 coordination complex with Cu2+ in cancer cells to exert cytotoxic effects.
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121
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Boulet A, Vest KE, Maynard MK, Gammon MG, Russell AC, Mathews AT, Cole SE, Zhu X, Phillips CB, Kwong JQ, Dodani SC, Leary SC, Cobine PA. The mammalian phosphate carrier SLC25A3 is a mitochondrial copper transporter required for cytochrome c oxidase biogenesis. J Biol Chem 2017; 293:1887-1896. [PMID: 29237729 DOI: 10.1074/jbc.ra117.000265] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 12/09/2017] [Indexed: 01/01/2023] Open
Abstract
Copper is required for the activity of cytochrome c oxidase (COX), the terminal electron-accepting complex of the mitochondrial respiratory chain. The likely source of copper used for COX biogenesis is a labile pool found in the mitochondrial matrix. In mammals, the proteins that transport copper across the inner mitochondrial membrane remain unknown. We previously reported that the mitochondrial carrier family protein Pic2 in budding yeast is a copper importer. The closest Pic2 ortholog in mammalian cells is the mitochondrial phosphate carrier SLC25A3. Here, to investigate whether SLC25A3 also transports copper, we manipulated its expression in several murine and human cell lines. SLC25A3 knockdown or deletion consistently resulted in an isolated COX deficiency in these cells, and copper addition to the culture medium suppressed these biochemical defects. Consistent with a conserved role for SLC25A3 in copper transport, its heterologous expression in yeast complemented copper-specific defects observed upon deletion of PIC2 Additionally, assays in Lactococcus lactis and in reconstituted liposomes directly demonstrated that SLC25A3 functions as a copper transporter. Taken together, these data indicate that SLC25A3 can transport copper both in vitro and in vivo.
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Affiliation(s)
- Aren Boulet
- From the Department of Biochemistry, University of Saskatchewan, Saskatoon, Saskatchewan 7N 5E5, Canada
| | - Katherine E Vest
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | - Margaret K Maynard
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | - Micah G Gammon
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | | | - Alexander T Mathews
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | - Shelbie E Cole
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | - Xinyu Zhu
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | - Casey B Phillips
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849
| | - Jennifer Q Kwong
- Department of Pediatrics, Emory University, Atlanta, Georgia 30322, and
| | - Sheel C Dodani
- the Department of Chemistry and Biochemistry, University of Texas at Dallas, Dallas, Texas 75080
| | - Scot C Leary
- From the Department of Biochemistry, University of Saskatchewan, Saskatoon, Saskatchewan 7N 5E5, Canada
| | - Paul A Cobine
- the Department of Biological Sciences, Auburn University, Auburn, Alabama 36849,
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122
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Levina A, Crans DC, Lay PA. Speciation of metal drugs, supplements and toxins in media and bodily fluids controls in vitro activities. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.01.002] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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123
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Ariöz C, Li Y, Wittung-Stafshede P. The six metal binding domains in human copper transporter, ATP7B: molecular biophysics and disease-causing mutations. Biometals 2017; 30:823-840. [PMID: 29063292 PMCID: PMC5684295 DOI: 10.1007/s10534-017-0058-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 10/05/2017] [Indexed: 12/16/2022]
Abstract
Wilson Disease (WD) is a hereditary genetic disorder, which coincides with a dysfunctional copper (Cu) metabolism caused by mutations in ATP7B, a membrane-bound P1B-type ATPase responsible for Cu export from hepatic cells. The N-terminal part (~ 600 residues) of the multi-domain 1400-residue ATP7B constitutes six metal binding domains (MBDs), each of which can bind a copper ion, interact with other ATP7B domains as well as with different proteins. Although the ATP7B's MBDs have been investigated in vitro and in vivo intensively, it remains unclear how these domains modulate overall structure, dynamics, stability and function of ATP7B. The presence of six MBDs is unique to mammalian ATP7B homologs, and many WD causing missense mutations are found in these domains. Here, we have summarized previously reported in vitro biophysical data on the MBDs of ATP7B and WD point mutations located in these domains. Besides the demonstration of where the research field stands today, this review showcasts the need for further biophysical investigation about the roles of MBDs in ATP7B function. Molecular mechanisms of ATP7B are important not only in the development of new WD treatment but also for other aspects of human physiology where Cu transport plays a role.
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Affiliation(s)
- Candan Ariöz
- Department of Biology and Biological Engineering, Division of Chemical Biology, Chalmers University of Technology, Kemigården 4, 412 96 Gothenburg, Sweden
| | - Yaozong Li
- Department of Chemistry, Umeå University, Kemihuset A, Linnaeus väg 10, 901 87 Umeå, Sweden
| | - Pernilla Wittung-Stafshede
- Department of Biology and Biological Engineering, Division of Chemical Biology, Chalmers University of Technology, Kemigården 4, 412 96 Gothenburg, Sweden
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124
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Sendzik M, Pushie MJ, Stefaniak E, Haas KL. Structure and Affinity of Cu(I) Bound to Human Serum Albumin. Inorg Chem 2017; 56:15057-15065. [DOI: 10.1021/acs.inorgchem.7b02397] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Madison Sendzik
- Department of Chemistry
and Physics, Saint Mary’s College, Notre Dame, Indiana 46556, United States
| | - M. Jake Pushie
- Department of Surgery, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Ewelina Stefaniak
- Department of Chemistry
and Physics, Saint Mary’s College, Notre Dame, Indiana 46556, United States
- Institute
of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego
5a, 02-106 Warsaw, Poland
| | - Kathryn L. Haas
- Department of Chemistry
and Physics, Saint Mary’s College, Notre Dame, Indiana 46556, United States
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125
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Antonucci L, Porcu C, Iannucci G, Balsano C, Barbaro B. Non-Alcoholic Fatty Liver Disease and Nutritional Implications: Special Focus on Copper. Nutrients 2017; 9:E1137. [PMID: 29057834 PMCID: PMC5691753 DOI: 10.3390/nu9101137] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/25/2017] [Accepted: 10/08/2017] [Indexed: 12/13/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is characterized by excess lipids in hepatocytes, due to excessive fatty acid influx from adipose tissue, de novo hepatic lipogenesis, in addition to excessive dietary fat and carbohydrate intake. Chronic hepatic lipid overload induces mitochondrial oxidative stress and cellular damage leading the development of NAFLD into a more severe liver disease condition, non-alcoholic steato-hepatitis (NASH). In turn, this can progress to cirrhosis and hepatocellular carcinoma (HCC). Among others, copper is one of the main bio-metals required for the preponderance of the enzymes involved in physiological redox reactions, which primarily occurs during mitochondrial respiration. Thus, copper homeostasis could be considered a target point for counteracting the progression of NAFLD. Accordingly, many diseases are correlated to unbalanced copper levels and, actually, some clinical trials are examining the use of copper chelating agents. Currently, no pharmacological interventions are approved for NAFLD, but nutritional and lifestyle modifications are always recommended. Fittingly, antioxidant food agents recognized to improve NAFLD and its complications have been described in the literature to bind copper. Therefore, this review describes the role of nutrition in the development and progression of NAFLD with a particular focus on copper and copper-binding antioxidant compounds against NAFLD.
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Affiliation(s)
| | | | - Gino Iannucci
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00185 Rome, Italy.
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126
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Ramek M, Marković M, Loher C, Sabolović J. Pronounced conformational flexibility of physiological ( l -histidinato)( l -threoninato)copper(II) in aqueous solution disclosed by a quantum chemical study. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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127
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Rivera-Pérez C, Clifton ME, Noriega FG. How micronutrients influence the physiology of mosquitoes. CURRENT OPINION IN INSECT SCIENCE 2017; 23:112-117. [PMID: 29129275 PMCID: PMC5695569 DOI: 10.1016/j.cois.2017.07.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/03/2017] [Accepted: 07/06/2017] [Indexed: 05/11/2023]
Abstract
Micronutrients or non-energetic nutrients (NEN) are needed in reduced amounts, but are essential for many mosquito physiological processes that influence biological traits from vector competence to reproductive capacity. The NEN include amino acids (AA), vitamins, salts, metals and sterols. Free AA plays critical roles controlling most physiological processes, from digestion to reproduction. Particularly proline connects metabolic pathways in energy production, flight physiology and ammonia detoxification. Metal, in particular iron and calcium, salts, sterol and vitamin homeostasis are critical for cell signaling, respiration, metabolism and reproduction. Micronutrient homeostasis influence the symbiotic relationships with microorganisms, having important implications in mosquitoes' nutrition, physiology and behavior, as well as in mosquito immunity and vector competence.
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Affiliation(s)
| | | | - Fernando G Noriega
- Department of Biological Sciences, Florida International University, Miami, FL, USA; Biomolecular Science Institute, Florida International University, Miami, FL, USA.
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128
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Vallières C, Holland SL, Avery SV. Mitochondrial Ferredoxin Determines Vulnerability of Cells to Copper Excess. Cell Chem Biol 2017; 24:1228-1237.e3. [PMID: 28867595 PMCID: PMC5654725 DOI: 10.1016/j.chembiol.2017.08.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 03/02/2017] [Accepted: 08/01/2017] [Indexed: 01/17/2023]
Abstract
The essential micronutrient copper is tightly regulated in organisms, as environmental exposure or homeostasis defects can cause toxicity and neurodegenerative disease. The principal target(s) of copper toxicity have not been pinpointed, but one key effect is impaired supply of iron-sulfur (FeS) clusters to the essential protein Rli1 (ABCE1). Here, to find upstream FeS biosynthesis/delivery protein(s) responsible for this, we compared copper sensitivity of yeast-overexpressing candidate targets. Overexpression of the mitochondrial ferredoxin Yah1 produced copper hyper-resistance. 55Fe turnover assays revealed that FeS integrity of Yah1 was particularly vulnerable to copper among the test proteins. Furthermore, destabilization of the FeS domain of Yah1 produced copper hypersensitivity, and YAH1 overexpression rescued Rli1 dysfunction. This copper-resistance function was conserved in the human ferredoxin, Fdx2. The data indicate that the essential mitochondrial ferredoxin is an important copper target, determining a tipping point where plentiful copper supply becomes excessive. This knowledge could help in tackling copper-related diseases.
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Affiliation(s)
- Cindy Vallières
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Sara L Holland
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Simon V Avery
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
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129
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Dolgova NV, Yu C, Cvitkovic JP, Hodak M, Nienaber KH, Summers KL, Cotelesage JJH, Bernholc J, Kaminski GA, Pickering IJ, George GN, Dmitriev OY. Binding of Copper and Cisplatin to Atox1 Is Mediated by Glutathione through the Formation of Metal-Sulfur Clusters. Biochemistry 2017; 56:3129-3141. [PMID: 28549213 DOI: 10.1021/acs.biochem.7b00293] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Copper is an essential nutrient required for many biological processes involved in primary metabolism, but free copper is toxic due to its ability to catalyze formation of free radicals. To prevent toxic effects, in the cell copper is bound to proteins and low molecular weight compounds, such as glutathione, at all times. The widely used chemotherapy agent cisplatin is known to bind to copper-transporting proteins, including copper chaperone Atox1. Cisplatin interactions with Atox1 and other copper transporters are linked to cancer resistance to platinum-based chemotherapy. Here we analyze the binding of copper and cisplatin to Atox1 in the presence of glutathione under redox conditions that mimic intracellular environment. We show that copper(I) and glutathione form large polymers with a molecular mass of approximately 8 kDa, which can transfer copper to Atox1. Cisplatin also can form polymers with glutathione, albeit at a slower rate. Analysis of simultaneous binding of copper and cisplatin to Atox1 under physiological conditions shows that both metals are bound to the protein through copper-sulfur-platinum bridges.
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Affiliation(s)
- Natalia V Dolgova
- Department of Biochemistry, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E5.,Department of Geological Sciences, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E2
| | - Corey Yu
- Department of Biochemistry, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E5
| | - John P Cvitkovic
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
| | - Miroslav Hodak
- Department of Physics, North Carolina State University , Raleigh, North Carolina 27695-7518, United States
| | - Kurt H Nienaber
- Department of Geological Sciences, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E2
| | - Kelly L Summers
- Department of Chemistry, University of Saskatchewan , Saskatoon, Saskatchewan Canada , S7N 5C9
| | - Julien J H Cotelesage
- Department of Geological Sciences, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E2
| | - Jerzy Bernholc
- Department of Physics, North Carolina State University , Raleigh, North Carolina 27695-7518, United States
| | - George A Kaminski
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
| | - Ingrid J Pickering
- Department of Geological Sciences, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E2.,Department of Chemistry, University of Saskatchewan , Saskatoon, Saskatchewan Canada , S7N 5C9
| | - Graham N George
- Department of Geological Sciences, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E2.,Department of Chemistry, University of Saskatchewan , Saskatoon, Saskatchewan Canada , S7N 5C9
| | - Oleg Y Dmitriev
- Department of Biochemistry, University of Saskatchewan , Saskatoon, Saskatchewan, Canada , S7N 5E5
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130
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Ilyechova EY, Tsymbalenko NV, Puchkova LV. The role of subcutaneous adipose tissue in supporting the copper balance in rats with a chronic deficiency in holo-ceruloplasmin. PLoS One 2017; 12:e0175214. [PMID: 28380026 PMCID: PMC5402356 DOI: 10.1371/journal.pone.0175214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 02/13/2017] [Indexed: 12/19/2022] Open
Abstract
We have previously shown that (1) an acute deficiency in blood
serum holo-ceruloplasmin (Cp) developed in rats that were fed fodder containing
silver ions (Ag-fodder) for one month and (2) the deficiency in
holo-Cp was compensated by non-hepatic holo-Cp synthesis in rats that were
chronically fed Ag-fodder for 6 months (Ag-rats). The purpose of the present
study is to identify the organ(s) that compensate for the hepatic holo-Cp
deficiency in the circulation. This study was performed on rats that were fed
Ag-fodder (40 mg Ag·kg-1 body mass daily) for 6 months. The relative
expression levels of the genes responsible for copper status were measured by
RT-PCR. The in vitro synthesis and secretion of
[14C]Cp were analyzed using a metabolic labeling approach. Oxidase
activity was determined using a gel assay with o-dianisidine.
Copper status and some hematological indexes were measured. Differential
centrifugation, immunoblotting, immunoelectrophoresis, and atomic absorption
spectrometry were included in the investigation. In the Ag-rats, silver
accumulation was tissue-specific. Skeletal muscles and internal (IAT) and
subcutaneous (SAT) adipose tissues did not accumulate silver significantly. In
SAT, the mRNAs for the soluble and glycosylphosphatidylinositol-anchored
ceruloplasmin isoforms were expressed, and their relative levels were increased
two-fold in the Ag-rats. In parallel, the levels of the genes responsible for Cp
metallation (Ctr1 and Atp7a/b) increased
correspondingly. In the SAT of the Ag-rats, Cp oxidase activity was observed in
the Golgi complex and plasma membrane. Moreover, full-length [14C]Cp
polypeptides were released into the medium by slices of SAT. The possibilities
that SAT is part of a system that controls the copper balance in mammals, and it
plays a significant role in supporting copper homeostasis throughout the body
are discussed.
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Affiliation(s)
- Ekaterina Y. Ilyechova
- Department of Molecular Genetics, Institute of Experimental Medicine, St.
Petersburg, Russia
- International Research and Education Center "Functional materials and
devices of optoelectronics and microelectronics", ITMO University, St.
Petersburg, Russia
- * E-mail:
| | - Nadezhda V. Tsymbalenko
- Department of Molecular Genetics, Institute of Experimental Medicine, St.
Petersburg, Russia
- International Research and Education Center "Functional materials and
devices of optoelectronics and microelectronics", ITMO University, St.
Petersburg, Russia
| | - Ludmila V. Puchkova
- Department of Molecular Genetics, Institute of Experimental Medicine, St.
Petersburg, Russia
- International Research and Education Center "Functional materials and
devices of optoelectronics and microelectronics", ITMO University, St.
Petersburg, Russia
- Department of Biophysics, Institute of Physics, Nanotechnology, and
Telecommunications, Peter the Great St. Petersburg Polytechnic University, St.
Petersburg, Russia
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131
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Tisato F, Forrer D, Tamburini S, Vittadini A, Traldi P, Porchia M. Interaction products of cytotoxic Cu(I) complexes with different solvent mixtures: an electrospray ionization mass spectrometry and density functional theory study. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:179-192. [PMID: 27806439 DOI: 10.1002/rcm.7781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/28/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
RATIONALE [Cu(P)4 ][BF4 ]-type complexes (P = tertiary phosphine) have shown significant antitumor activity. This biological property appears to be activated via formation of coordinative unsaturated [Cu(P)n ]+ species (n < 4), that may interact with various molecules starting from the solvent(s) in which they are dissolved. Aim of our study was to investigate the interaction of these species with different solvent mixtures. METHODS The interaction has been investigated by electrospray ionization mass spectrometry, and the interaction products have been characterized by multiple collisional experiments, using an ion trap mass instrument. Density functional theory (DFT) calculation studies, using a meta-hybrid exchange correlation (xc) functional and an implicit solvent model, were employed to investigate the equilibrium distribution of species in solution. RESULTS Depending on the nature of the solvent mixture and coordinated phosphine, three [Cu(P)4 ][BF4 ]-type complexes undergo dissociation with formation of [Cu(P)2 ]+ , [Cu(P)(solv)]+ and [Cu(solv)2 ]+ species (solv = solvent). Preferred collisional-induced fragmentation pathways provide qualitative information on the selectivity of [Cu(P)n ]+ for specific solvents and donor atoms. Formation free energies and equilibrium constants pertaining to [CuI (PTA)n ]+ , [CuI/II (solv)n ]m+ (n ≤ 4; m = 1, 2) and [CuI (PTA)2-k (sol)k ]+ (k = 1, 2) provide a comprehensive picture of equilibria in solution. CONCLUSIONS Dimethyl sulfoxide (DMSO) and acetonitrile (MeCN) strongly affect [Cu(P)n ]+ assemblies producing mixed-ligand [Cu(P)(DMSO)]+ and [Cu(P)(MeCN)]+ species. Excess of both DMSO and MeCN solvents are able to fully displace coordinated phosphines giving [Cu(solv)2 ]+ -type adducts. The presence of phosphines in the native complex is mandatory to retain the reduced oxidation state of copper. Instead, the more labile [CuI (MeCN)4 ]+ complex dissolved in DMSO and MeCN displays a combination of Cu(I) and Cu(II) adducts. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
| | - Daniel Forrer
- CNR - ICMATE, Corso Stati Uniti 4, 35127, Padova, Italy
| | | | | | - Pietro Traldi
- CNR - ICMATE, Corso Stati Uniti 4, 35127, Padova, Italy
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132
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Ackerman CM, Lee S, Chang CJ. Analytical Methods for Imaging Metals in Biology: From Transition Metal Metabolism to Transition Metal Signaling. Anal Chem 2017; 89:22-41. [PMID: 27976855 PMCID: PMC5827935 DOI: 10.1021/acs.analchem.6b04631] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cheri M. Ackerman
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Sumin Lee
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christopher J. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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133
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Abstract
Copper (Cu) is indispensible for growth and development of human organisms. It is required for such fundamental and ubiquitous processes as respiration and protection against reactive oxygen species. Cu also enables catalytic activity of enzymes that critically contribute to the functional identity of many cells and tissues. Pigmentation, production of norepinephrine by the adrenal gland, the key steps in the formation of connective tissue, neuroendocrine signaling, wound healing - all these processes require Cu and depend on Cu entering the secretory pathway. To reach the Cu-dependent enzymes in a lumen of the trans-Golgi network and various vesicular compartments, Cu undertakes a complex journey crossing the extracellular and intracellular membranes and staying firmly on course while traveling in a cytosol. The proteins that assist Cu in this journey by mediating its entry, distribution, and export, have been identified. The accumulating data also indicate that the current model of cellular Cu homeostasis is still a "skeleton" that has to be fleshed out with many new details. This review summarizes recent data on the mechanisms responsible for Cu transfer to the secretory pathway. The emerging new concepts and gaps in our knowledge are discussed.
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Affiliation(s)
- Svetlana Lutsenko
- Department of Physiology, Johns Hopkins University School of Medicine, 725 N. Wolfe street, Baltimore, MD 21205, USA.
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134
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Plante S, Béland F, Tchoukanova N, Gagnon J. Novel Meals from Eastern Canada’s Marine Fishery By-products as Alternatives to Fishmeal. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2016. [DOI: 10.1080/10498850.2016.1201712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sébastien Plante
- Institut de recherche sur les zones côtières inc., Shippagan, Nouveau-Brunswick, Canada
| | - France Béland
- Institut de recherche sur les zones côtières inc., Shippagan, Nouveau-Brunswick, Canada
| | - Nadejda Tchoukanova
- Institut de recherche sur les zones côtières inc., Shippagan, Nouveau-Brunswick, Canada
| | - Jacques Gagnon
- Institut de recherche sur les zones côtières inc., Shippagan, Nouveau-Brunswick, Canada
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135
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Clifford RJ, Maryon EB, Kaplan JH. Dynamic internalization and recycling of a metal ion transporter: Cu homeostasis and CTR1, the human Cu⁺ uptake system. J Cell Sci 2016; 129:1711-21. [PMID: 26945057 DOI: 10.1242/jcs.173351] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 03/02/2016] [Indexed: 01/01/2023] Open
Abstract
Cu ion (Cu) entry into human cells is mediated by CTR1 (also known as SLC31A1), the high-affinity Cu transporter. When extracellular Cu is raised, the cell is protected against excess accumulation by rapid internalization of the transporter. When Cu is lowered, the transporter returns to the membrane. We show in HEK293 cells overexpressing CTR1 that expression of either the C-terminal domain of AP180 (also known as SNAP91), a clathrin-coat assembly protein that sequesters clathrin, or a dominant-negative mutant of dynamin, decreases Cu-induced endocytosis of CTR1, as does a dynamin inhibitor and clathrin knockdown using siRNA. Utilizing imaging, siRNA techniques and a new high-throughput assay for endocytosis employing CLIP-tag methodology, we show that internalized CTR1 accumulates in early sorting endosomes and recycling compartments (containing Rab5 and EEA1), but not in late endosomes or lysosomal pathways. Using live cell fluorescence, we find that upon extracellular Cu removal CTR1 recycles to the cell surface through the slower-recycling Rab11-mediated pathway. These processes enable cells to dynamically alter transporter levels at the plasma membrane and acutely modulate entry as a safeguard against excess cellular Cu.
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Affiliation(s)
- Rebecca J Clifford
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine, Chicago, IL 60607, USA
| | - Edward B Maryon
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine, Chicago, IL 60607, USA
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine, Chicago, IL 60607, USA
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136
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Squitti R, Siotto M, Arciello M, Rossi L. Non-ceruloplasmin bound copper and ATP7B gene variants in Alzheimer's disease. Metallomics 2016; 8:863-73. [DOI: 10.1039/c6mt00101g] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
ATP7B, a protein mainly expressed in the hepatocytes, is a copper chaperone that loads the metal into the serum copper–protein ceruloplasmin during its synthesis and also escorts superfluous copper into the bile, by a sophisticated trafficking mechanism.
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Affiliation(s)
- R. Squitti
- Molecular Markers Laboratory
- IRCCS Istituto Centro San Giovanni di Dio-Fatebenefratelli
- 25125 Brescia, Italy
| | - M. Siotto
- Don Carlo Gnocchi ONLUS Foundation
- Milan, Italy
| | - M. Arciello
- Department of Biology
- University of Rome Tor Vergata
- Rome, Italy
| | - L. Rossi
- Department of Biology
- University of Rome Tor Vergata
- Rome, Italy
- Consorzio Interuniversitario “Istituto Nazionale Biostrutture e Biosistemi” (I.N.B.B.)
- Rome, Italy
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137
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Tisato F, Peruzzo V, Zanchetta G, Tamburini S, Traldi P, Porchia M. Electrospray ionization in the study of the interactions between cytotoxic phosphino Cu(I) complexes and selected amino acids and GlyGlyHis peptide model. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2016; 22:275-287. [PMID: 27882894 DOI: 10.1255/ejms.1441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Tetrahedral [Cu(P)4][BF4]-type complexes (P = tertiary phosphine) are a class of monopositively charged compounds that have shown notable antitumor activity in both in vitro and in vivo tests. This biological property appears to be related to the peculiar physicochemical characteristics of these compounds. Although thermodynamically stable, they are labile at micromolar concentrations. Such a behavior allows the Cu(I) ion in [Cu(P)n]+ assemblies (n < 4) to interact with surrounding molecules, including the rich peptide/protein environment that metal complexes have to face in the physiological milieu on the way to tumor cells. The scope of this investigation was to study the interaction products that originate from the treatment in water/methanol mixtures of representative phosphino Cu(I) compounds with an excess of individual amino acids (AAs) selected on the basis of the donor atom likely involved in metal coordination (i.e. O-glycine, S-methionine and N-histidine). These interactions have been investigated in electrospray ionization mass spectrometry (ESI-MS), mainly in the positive ion mode [ESI(+)MS], and the interaction products have been characterized by sequential collisional experiments, performed by an ion trap instrument. Histidine and methionine, but not glycine, were able to mine Cu(I) from [Cu(P)n]+ assemblies through the formation of mixed [CuI(P)(AA)]+ and eventually [CuI(AA)2]+ adducts. The ability to substitute phosphine(s) by AAs and the strongest affinity for Cu(I) was proved by the study of the energetics of collisional-induced decomposition (CID) reactions [CuI(P)(AA)]+ → CuI(AA) + P]+. Among the investigated AAs, histidine displayed the strongest affinity for Cu(I). Transchelation of Cu(I) was similarly observed when [Cu(P)n]+ species were treated with the model tripeptide GlyGlyHis (GGH), the most investigated member of the amino terminal Cu(II) and Ni(II) (ATCUN) peptide family. GGH was able to form robust metal adducts not only with Cu(II) and the related divalent Zn(II) and Ni(II) ions, but also with monovalent ions, including Cu(I) and Ag(I). CID pathways of [CuI(GGH)]+ and [AgI(GGH)]+ were qualitatively superimposable and proceeded through losses of neutral fragments. Similar losses of neutral fragments were observed from [ZnII(GGH)] and [NiII(GGH)]. CID pathways of [CuII(GGH)]-/+ adducts instead took place mainly through intramolecular electron-transfer reactions comprising the reduction of Cu(II) to Cu(I) and the formation of fragment radical cations.
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Affiliation(s)
| | | | | | | | - Pietro Traldi
- CNR - ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
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