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Skvortsov AN, Ilyechova EY, Puchkova LV. Chemical background of silver nanoparticles interfering with mammalian copper metabolism. JOURNAL OF HAZARDOUS MATERIALS 2023; 451:131093. [PMID: 36905906 DOI: 10.1016/j.jhazmat.2023.131093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
The rapidly increasing application of silver nanoparticles (AgNPs) boosts their release into the environment, which raises a reasonable alarm for ecologists and health specialists. This is manifested as increased research devoted to the influence of AgNPs on physiological and cellular processes in various model systems, including mammals. The topic of the present paper is the ability of silver to interfere with copper metabolism, the potential health effects of this interference, and the danger of low silver concentrations to humans. The chemical properties of ionic and nanoparticle silver, supporting the possibility of silver release by AgNPs in extracellular and intracellular compartments of mammals, are discussed. The possibility of justified use of silver for the treatment of some severe diseases, including tumors and viral infections, based on the specific molecular mechanisms of the decrease in copper status by silver ions released from AgNPs is also discussed.
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Affiliation(s)
- Alexey N Skvortsov
- Graduate School of Biomedical Systems and Technologies, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg 195251, Russia; Laboratory of Molecular Biology of Stem Cells, Institute of Cytology of the Russian Academy of Sciences, Saint Petersburg 194064, Russia
| | - Ekaterina Yu Ilyechova
- Graduate School of Biomedical Systems and Technologies, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg 195251, Russia; Department of Molecular Genetics, Institute of Experimental Medicine of the Russian Academy of Sciences, Saint Petersburg 197376, Russia; Research Center of Advanced Functional Materials and Laser Communication Systems (RC AFMLCS), ITMO University, Saint Petersburg 197101, Russia.
| | - Ludmila V Puchkova
- Graduate School of Biomedical Systems and Technologies, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg 195251, Russia; Department of Molecular Genetics, Institute of Experimental Medicine of the Russian Academy of Sciences, Saint Petersburg 197376, Russia; Research Center of Advanced Functional Materials and Laser Communication Systems (RC AFMLCS), ITMO University, Saint Petersburg 197101, Russia
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Magazenkova DN, Skomorokhova EA, Farroukh MA, Zharkova MS, Jassem ZM, Rekina VE, Shamova OV, Puchkova LV, Ilyechova EY. Influence of Silver Nanoparticles on the Growth of Ascitic and Solid Ehrlich Adenocarcinoma: Focus on Copper Metabolism. Pharmaceutics 2023; 15:pharmaceutics15041099. [PMID: 37111584 PMCID: PMC10145613 DOI: 10.3390/pharmaceutics15041099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/11/2023] [Accepted: 03/23/2023] [Indexed: 04/01/2023] Open
Abstract
The link between copper metabolism and tumor progression motivated us to use copper chelators for suppression of tumor growth. We assume that silver nanoparticles (AgNPs) can be used for lowering bioavailable copper. Our assumption is based on the ability of Ag(I) ions released by AgNPs in biological media and interfere with Cu(I) transport. Intervention of Ag(I) into copper metabolism leads to the replacement of copper by silver in ceruloplasmin and the decrease in bioavailable copper in the bloodstream. To check this assumption, mice with ascitic or solid Ehrlich adenocarcinoma (EAC) were treated with AgNPs using different protocols. Copper status indexes (copper concentration, ceruloplasmin protein level, and oxidase activity) were monitored to assess copper metabolism. The expression of copper-related genes was determined by real-time PCR in the liver and tumors, and copper and silver levels were measured by FAAS. Intraperitoneal AgNPs treatment beginning on the day of tumor inoculation enhanced mice survival, reduced the proliferation of ascitic EAC cells, and suppressed the activity of HIF1α, TNF-α and VEGFa genes. Topical treatment by the AgNPs, which was started together with the implantation of EAC cells in the thigh, also enhanced mice survival, decreased tumor growth, and repressed genes responsible for neovascularization. The advantages of silver-induced copper deficiency over copper chelators are discussed.
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Affiliation(s)
- Daria N. Magazenkova
- Research Center of Advanced Functional Materials and Laser Communication Systems, Institute of Advanced Data Transfer Systems, ITMO University, 197101 St. Petersburg, Russia
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Ekaterina A. Skomorokhova
- Department of Molecular Genetics, Research Institute of Experimental Medicine, 197376 St. Petersburg, Russia
| | - Mohammad Al Farroukh
- Federal State Budgetary Scientific Institution, Saint Petersburg State University, 199034 St. Petersburg, Russia
| | - Maria S. Zharkova
- Department of General Pathology and Pathophysiology, Research Institute of Experimental Medicine, 197376 St. Petersburg, Russia
| | - Zena M. Jassem
- Research Center of Advanced Functional Materials and Laser Communication Systems, Institute of Advanced Data Transfer Systems, ITMO University, 197101 St. Petersburg, Russia
| | - Valeria E. Rekina
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Olga V. Shamova
- Department of General Pathology and Pathophysiology, Research Institute of Experimental Medicine, 197376 St. Petersburg, Russia
| | - Ludmila V. Puchkova
- Research Center of Advanced Functional Materials and Laser Communication Systems, Institute of Advanced Data Transfer Systems, ITMO University, 197101 St. Petersburg, Russia
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
- Department of Molecular Genetics, Research Institute of Experimental Medicine, 197376 St. Petersburg, Russia
| | - Ekaterina Y. Ilyechova
- Research Center of Advanced Functional Materials and Laser Communication Systems, Institute of Advanced Data Transfer Systems, ITMO University, 197101 St. Petersburg, Russia
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
- Department of Molecular Genetics, Research Institute of Experimental Medicine, 197376 St. Petersburg, Russia
- Correspondence: ; Tel.: +7-(921)-7605274
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Anti-Influenza Effect of Nanosilver in a Mouse Model. Vaccines (Basel) 2020; 8:vaccines8040679. [PMID: 33202939 PMCID: PMC7712555 DOI: 10.3390/vaccines8040679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/01/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
The present study assesses copper metabolism of the host organism as a target of antiviral strategy, basing on the "virocell" concept. Silver nanoparticles (AgNPs) were used as a specific active agent because they reduce the level of holo-ceruloplasmin, the main extracellular cuproenzyme. The mouse model of influenza virus A infection was used with two doses: 1 LD50 and 10 LD50. Three treatment regimens were used: Scheme 1-mice were pretreated 4 days before infection and then every day during infection development; Scheme 2-mice were pretreated four days before infection and on the day of virus infection; Scheme 3-virus infection and AgNP treatment started simultaneously, and mice were injected with AgNPs until the end of the experiment. The mice treated by Scheme 1 demonstrated significantly lower mortality, the protection index reached 60-70% at the end of the experiment, and mean lifespan was prolonged. In addition, the treatment of the animals with AgNPs resulted in normalization of the weight dynamics. Despite the amelioration of the infection, AgNP treatment did not influence influenza virus replication. The possibility of using nanosilver as an effective indirectly-acting antiviral drug is discussed.
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Puchkova LV, Babich PS, Zatulovskaia YA, Ilyechova EY, Di Sole F. Copper Metabolism of Newborns Is Adapted to Milk Ceruloplasmin as a Nutritive Source of Copper: Overview of the Current Data. Nutrients 2018; 10:E1591. [PMID: 30380720 PMCID: PMC6266612 DOI: 10.3390/nu10111591] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/17/2018] [Accepted: 10/26/2018] [Indexed: 12/19/2022] Open
Abstract
Copper, which can potentially be a highly toxic agent, is an essential nutrient due to its role as a cofactor for cuproenzymes and its participation in signaling pathways. In mammals, the liver is a central organ that controls copper turnover throughout the body, including copper absorption, distribution, and excretion. In ontogenesis, there are two types of copper metabolism, embryonic and adult, which maintain the balance of copper in each of these periods of life, respectively. In the liver cells, these types of metabolism are characterized by the specific expression patterns and activity levels of the genes encoding ceruloplasmin, which is the main extracellular ferroxidase and copper transporter, and the proteins mediating ceruloplasmin metalation. In newborns, the molecular genetic mechanisms responsible for copper homeostasis and the ontogenetic switch from embryonic to adult copper metabolism are highly adapted to milk ceruloplasmin as a dietary source of copper. In the mammary gland cells, the level of ceruloplasmin gene expression and the alternative splicing of its pre-mRNA govern the amount of ceruloplasmin in the milk, and thus, the amount of copper absorbed by a newborn is controlled. In newborns, the absorption, distribution, and accumulation of copper are adapted to milk ceruloplasmin. If newborns are not breast-fed in the early stages of postnatal development, they do not have this natural control ensuring alimentary copper balance in the body. Although there is still much to be learned about the neonatal consequences of having an imbalance of copper in the mother/newborn system, the time to pay attention to this problem has arrived because the neonatal misbalance of copper may provoke the development of copper-related disorders.
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Affiliation(s)
- Ludmila V Puchkova
- Laboratory of Trace Elements Metabolism, ITMO University, Kronverksky av., 49, 197101 St.-Petersburg, Russia.
- Department of Molecular Genetics, Research Institute of Experimental Medicine, Acad. Pavlov str., 12, 197376 St.-Petersburg, Russia.
- Department of Biophysics, Peter the Great St. Petersburg Polytechnic University, Politekhnicheskaya str., 29, 195251 St.-Petersburg, Russia.
| | - Polina S Babich
- Department of Zoology, Herzen State Pedagogical University of Russia, Kazanskaya str., 6, 191186 St.-Petersburg, Russia.
| | - Yulia A Zatulovskaia
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Ekaterina Y Ilyechova
- Laboratory of Trace Elements Metabolism, ITMO University, Kronverksky av., 49, 197101 St.-Petersburg, Russia.
| | - Francesca Di Sole
- Department of Physiology and Pharmacology, Des Moines University, Des Moines, IA 50312, USA.
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Ilyechova EY, Puchkova LV, Shavlovskii MM, Korzhevskii DE, Petrova ES, Tsymbalenko NV. Effect of Silver Ions on Copper Metabolism during Mammalian Ontogenesis. Russ J Dev Biol 2018. [DOI: 10.1134/s1062360418030037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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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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In vivo effect of copper status on cisplatin-induced nephrotoxicity. Biometals 2016; 29:841-9. [DOI: 10.1007/s10534-016-9955-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/26/2016] [Indexed: 10/21/2022]
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Ilyechova EY, Saveliev AN, Skvortsov AN, Babich PS, Zatulovskaia YA, Pliss MG, Korzhevskii DE, Tsymbalenko NV, Puchkova LV. The effects of silver ions on copper metabolism in rats. Metallomics 2014; 6:1970-87. [PMID: 25008154 DOI: 10.1039/c4mt00107a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The influence of short and prolonged diet containing silver ions (Ag-diet) on copper metabolism was studied. Two groups of animals were used: one group of adult rats received a Ag-diet for one month (Ag-A1) and another group received a Ag-diet for 6 months from birth (Ag-N6). In Ag-A1 rats, the Ag-diet caused a dramatic decrease of copper status indexes that was manifested as ceruloplasmin-associated copper deficiency. In Ag-N6 rats, copper status indexes decreased only 2-fold as compared to control rats. In rats of both groups, silver entered the bloodstream and accumulated in the liver. Silver was incorporated into ceruloplasmin (Cp), but not SOD1. In the liver, a prolonged Ag-diet caused a decrease of the expression level of genes, associated with copper metabolism. Comparative spectrophotometric analysis of partially purified Cp fractions has shown that Cp from Ag-N6 rats was closer to holo-Cp by specific enzymatic activities and tertiary structure than Cp from Ag-A1 rats. However, Cp of Ag-N6 differs from control holo-Cp and Cp of Ag-A1 in its affinity to DEAE-Sepharose and in its binding properties to lectins. In the bloodstream of Ag-N6, two Cp forms are present as shown in pulse-experiments on rats with the liver isolated from circulation. One of the Cp isoforms is of hepatic origin, and the other is of extrahepatic origin; the latter is characterized by a faster rate of secretion than hepatic Cp. These data allowed us to suggest that the disturbance of holo-Cp formation in the liver was compensated by induction of extrahepatic Cp synthesis. The possible biological importance of these effects is discussed.
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Affiliation(s)
- E Yu Ilyechova
- Research Institute of Experimental Medicine, Pavlova str., 12, St. Petersburg, 197376 Russia.
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Babich PS, Skvortsov AN, Rusconi P, Tsymbalenko NV, Mutanen M, Puchkova LV, Broggini M. Non-hepatic tumors change the activity of genes encoding copper trafficking proteins in the liver. Cancer Biol Ther 2013; 14:614-24. [PMID: 23792645 DOI: 10.4161/cbt.24594] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
To assess the statistical relationship between tumor growth and copper metabolism, we performed a metaanalysis of studies in which patients with neoplasms were characterized according to any of the copper status indexes (atomic copper serum concentration, serum oxidase activity, ceruloplasmin protein content). Our metaanalysis shows that in the majority of cases (more than 3100 patients), tumor growth positively correlates with the copper status indexes. Nude athymic CD-1 nu/nu mice with subcutaneous tumors of human origin, C57Bl/6J mice with murine melanoma and Apc(Min) mice with spontaneously developing adenomas throughout the intestinal tract were studied to experimentally determine the relationship between tumor progression, liver copper metabolism, and copper status indexes. We showed that the copper status indexes increased significantly during tumor growth. In the liver tissue of tumor-bearing mice, ceruloplasmin gene expression, as well as the expression of genes related to ceruloplasmin metallation (CTR1 and ATP7B), increased significantly. Moreover, the presence of an mRNA splice variant encoding a form of ceruloplasmin anchored to the plasma membrane by glycosylphosphatidyl inositol, which is atypical for hepatocytes, was also detected. The ATP7A copper transporter gene, which is normally expressed in the liver only during embryonic copper metabolism, was also activated. Depletion of holo-ceruloplasmin resulted in retardation of human HCT116 colon carcinoma cell growth in nude mice and induced DNA fragmentation in tumor cells. In addition, the concentration of cytochrome c increased significantly in the cytosol, while decreasing in the mitochondria. We discuss a possible trans-effect of developing tumors on copper metabolism in the liver.
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Affiliation(s)
- Polina S Babich
- Department of Biophysics, St. Petersburg State Polytechnical University, St. Petersburg, Russia
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Zatulovskiy EA, Skvortsov AN, Rusconi P, Ilyechova EY, Babich PS, Tsymbalenko NV, Broggini M, Puchkova LV. Serum depletion of holo-ceruloplasmin induced by silver ions in vivo reduces uptake of cisplatin. J Inorg Biochem 2012; 116:88-96. [PMID: 23018271 DOI: 10.1016/j.jinorgbio.2012.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 06/01/2012] [Accepted: 07/03/2012] [Indexed: 02/02/2023]
Abstract
There is an emerging link between extracellular copper concentration and the uptake of cisplatin mediated by copper transporter CTR1 in cell cultures and unicellular eukaryotes. To test the link between extracellular copper level and cisplatin uptake by organs in vivo we used mice with low copper status parameters induced by AgCl-containing diet (Ag-mice). In Ag-mice, serum copper status and liver copper metabolism were characterized. It was shown that the expression level of copper transporter genes and activity of ubiquitous intracellular cuproenzymes were not affected but the level of serum holo-ceruloplasmin was not detectable. Silver was selectively absorbed by liver and accumulated in the mitochondrial matrix. Silver was present in an exchangeable form and was excreted through bile. Ag-mice model is characterized by high reproducibility, reversibility, synchronicity, and definiteness of ceruloplasmin-associated copper deficiency. After cisplatin treatment Ag-mice, as compared to control mice, demonstrated the delay in platinum uptake by organs during first 30 min. This effect was not observed at later time points probably due to cisplatin induced copper release to blood, which resulted in the recovery of copper status. These data allowed us to conclude that cisplatin uptake was coupled to copper transport in vivo.
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Affiliation(s)
- Evgeny A Zatulovskiy
- Department of Biophysics, St. Petersburg State Polytechnical University, St. Petersburg, 195251, Russia
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Vasilenko YA, Ilyechova EY, Zatulovskiy EA, Babich PS, Puchkova LV. Changes in copper metabolism in rat liver after adrenalectomy. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2012; 445:218-222. [PMID: 22945520 DOI: 10.1134/s0012496612040187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Indexed: 06/01/2023]
Affiliation(s)
- Yu A Vasilenko
- St. Petersburg State Polytechnical University, St. Petersburg, Russia
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Skvortsov AN, Zatulovskiy EA, Puchkova LV. Structure-functional organization of eukaryotic high-affinity copper importer CTR1 determines its ability to transport copper, silver, and cisplatin. Mol Biol 2012. [DOI: 10.1134/s0026893312010219] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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