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Skomorokhova EA, Sankova TP, Orlov IA, Savelev AN, Magazenkova DN, Pliss MG, Skvortsov AN, Sosnin IM, Kirilenko DA, Grishchuk IV, Sakhenberg EI, Polishchuk EV, Brunkov PN, Romanov AE, Puchkova LV, Ilyechova EY. Size-Dependent Bioactivity of Silver Nanoparticles: Antibacterial Properties, Influence on Copper Status in Mice, and Whole-Body Turnover. Nanotechnol Sci Appl 2020; 13:137-157. [PMID: 33408467 PMCID: PMC7781014 DOI: 10.2147/nsa.s287658] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose The ability of silver nanoparticles (AgNPs) of different sizes to influence copper metabolism in mice is assessed. Materials and Methods AgNPs with diameters of 10, 20, and 75 nm were fabricated through a chemical reduction of silver nitrate and characterized by UV/Vis spectrometry, transmission and scanning electronic microscopy, and laser diffractometry. To test their bioactivity, Escherichia coli cells, cultured A549 cells, and C57Bl/6 mice were used. The antibacterial activity of AgNPs was determined by inhibition of colony-forming ability, and cytotoxicity was tested using the MTT test (viability, %). Ceruloplasmin (Cp, the major mammalian extracellular copper-containing protein) concentration and enzymatic activity were measured using gel-assay analyses and WB, respectively. In vitro binding of AgNPs with serum proteins was monitored with UV/Vis spectroscopy. Metal concentrations were measured using atomic absorption spectrometry. Results The smallest AgNPs displayed the largest dose- and time-dependent antibacterial activity. All nanoparticles inhibited the metabolic activity of A549 cells in accordance with dose and time, but no correlation between cytotoxicity and nanoparticle size was found. Nanosilver was not uniformly distributed through the body of mice intraperitoneally treated with low AgNP concentrations. It was predominantly accumulated in liver. There, nanosilver was included in ceruloplasmin, and Ag-ceruloplasmin with low oxidase activity level was formed. Larger nanoparticles more effectively interfered with the copper metabolism of mice. Large AgNPs quickly induced a drop of blood serum oxidase activity to practically zero, but after cancellation of AgNP treatment, the activity was rapidly restored. A major fraction of the nanosilver was excreted in the bile with Cp. Nanosilver was bound by alpha-2-macroglobulin in vitro and in vivo, but silver did not substitute for the copper atoms of Cp in vitro. Conclusion The data showed that even at low concentrations, AgNPs influence murine copper metabolism in size-dependent manner. This property negatively correlated with the antibacterial activity of AgNPs.
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Affiliation(s)
- Ekaterina A Skomorokhova
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Department of Molecular Genetics, Research Institute of Experimental Medicine, St. Petersburg, Russia
| | - Tatiana P Sankova
- Higher Engineering Physics School of the Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Iurii A Orlov
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia
| | - Andrew N Savelev
- Higher Engineering Physics School of the Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Daria N Magazenkova
- Higher Engineering Physics School of the Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Mikhail G Pliss
- Department of Experimental Physiology and Pharmacology, Almazov National Medical Research Centre, St. Petersburg, Russia.,Laboratory of Blood Circulation Biophysics, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Alexey N Skvortsov
- Higher Engineering Physics School of the Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Ilya M Sosnin
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia
| | - Demid A Kirilenko
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Center of Nanoheterostructures Physics, Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia
| | - Ivan V Grishchuk
- Higher Engineering Physics School of the Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Elena I Sakhenberg
- Laboratory of Cell Protection Mechanisms, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
| | - Elena V Polishchuk
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Telethon Institute of Genetics and Medicine, Pozzuoli, Naples, Italy
| | - Pavel N Brunkov
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Center of Nanoheterostructures Physics, Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia
| | - Alexey E Romanov
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Center of Nanoheterostructures Physics, Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia
| | - Ludmila V Puchkova
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Department of Molecular Genetics, Research Institute of Experimental Medicine, St. Petersburg, Russia.,Higher Engineering Physics School of the Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Ekaterina Yu Ilyechova
- International Research Center of Functional Materials and Devices of Optoelectronics, ITMO University, St. Petersburg, Russia.,Department of Molecular Genetics, Research Institute of Experimental Medicine, St. Petersburg, Russia
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Shin EJ, Jeong JH, Chung CK, Kim DJ, Wie MB, Park ES, Chung YH, Nam Y, Tran TV, Lee SY, Kim HJ, Ong WY, Kim HC. Ceruloplasmin is an endogenous protectant against kainate neurotoxicity. Free Radic Biol Med 2015; 84:355-372. [PMID: 25843655 DOI: 10.1016/j.freeradbiomed.2015.03.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 03/10/2015] [Accepted: 03/14/2015] [Indexed: 01/08/2023]
Abstract
To determine the role of ceruloplasmin (Cp) in epileptic seizures, we used a kainate (KA) seizure animal model and examined hippocampal samples from epileptic patients. Treatment with KA resulted in a time-dependent decrease in Cp protein expression in the hippocampus of rats. Cp-positive cells were colocalized with neurons or reactive astrocytes in KA-treated rats and epileptic patient samples. KA-induced seizures, initial oxidative stress (i.e., hydroxyl radical formation, lipid peroxidation, protein oxidation, and synaptosomal reactive oxygen species), altered iron status (increasing Fe(2+) accumulation and L-ferritin-positive reactive microglial cells and decreasing H-ferritin-positive neurons), and impaired glutathione homeostasis and neurodegeneration (i.e., Fluoro-Nissl and Fluoro-Jade B staining analyses) were more pronounced in Cp antisense oligonucleotide (ASO)- than in Cp sense oligonucleotide-treated rats. Consistently, Cp ASO facilitated KA-induced lactate dehydrogenase (LDH) release, Fe(2+) accumulation, and glutathione loss in neuron-rich and mixed cultures. However, Cp ASO did not alter KA-induced LDH release or Fe(2+) accumulation in the astroglial culture, but did facilitate impairment in glutathione homeostasis in the same culture. Importantly, treatment with human Cp protein resulted in a significant attenuation against these neurotoxicities induced by Cp ASO. Our results suggest that Cp-mediated neuroprotection occurs via the inhibition of seizure-associated oxidative damage (including impairment in glutathione homeostasis), Fe(2+) accumulation, and alterations in ferritin immunoreactivity. Moreover, interactive modulation between neurons and glia was found to be important for Cp upregulation in the attenuation of epileptic damage in both animals and humans.
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Affiliation(s)
- Eun-Joo Shin
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 200-701, South Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul 156-756, South Korea
| | - Chun Kee Chung
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 110-799, South Korea
| | - Dae-Joong Kim
- Department of Anatomy and Cell Biology, Medical School, Kangwon National University, Chunchon 200-701, South Korea
| | - Myung-Bok Wie
- Department of Veterinary Medicine, Kangwon National University, Chunchon 200-701, South Korea
| | - Eon Sub Park
- Department of Pathology, College of Medicine, Chung-Ang University, Seoul 156-756, South Korea
| | - Yoon Hee Chung
- Department of Anatomy, College of Medicine, Chung-Ang University, Seoul 156-756, South Korea
| | - Yunsung Nam
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 200-701, South Korea
| | - The-Vinh Tran
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 200-701, South Korea
| | - Sung Youl Lee
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 200-701, South Korea
| | - Hwa-Jung Kim
- College of Pharmacy, Ewha Women׳s University, Seoul 120-750, South Korea
| | - Wei-Yi Ong
- Department of Anatomy, National University of Singapore, Singapore 119260, Singapore
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 200-701, South Korea.
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Rolfs A, Hediger MA. Metal ion transporters in mammals: structure, function and pathological implications. J Physiol 1999; 518:1-12. [PMID: 10373684 PMCID: PMC2269412 DOI: 10.1111/j.1469-7793.1999.0001r.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Despite the importance of metal ions in several catalytic functions, there has been, until recently, little molecular information available on the mechanisms whereby metal ions are actively taken up by mammalian cells. The classical concept for iron uptake into mammalian cells has been the endocytosis of transferrin-bound Fe3+ by the transferrin receptor. Studies with hypotransferrinaemic mice revealed that in the intestine mucosal transferrin is derived from the plasma and that its presence is not required in the intestinal lumen for dietary iron absorption. This suggests that, at least in the intestine, other non-receptor-mediated uptake systems exist. The molecular identification of metal ion transporters is of great importance, in particular since an increasing number of human diseases are thought to be related to disturbances in metal ion homeostasis, including metal ion overload and deficiency disorders (i.e. anaemia, haemochromatosis, Menkes disease, Wilson's disease), and neurodegenerative diseases (i.e. Alzheimer's, Friedreich's ataxia and Parkinson's diseases). Furthermore, susceptibilities to mycobacterial infections are caused by metal ion transporter defects. The pathological implications of disturbed metal ion homeostasis confirm the vital roles these metal ions play in the catalytic function of many enzymes, in gene regulation (zinc-finger proteins), and in free radical homeostasis. Recent insights have significantly advanced our knowledge of how metal ions are taken up or released by mammalian cells. The purpose of this review is to summarize these advances and to give an overview on the growing number of mammalian metal ion transporters.
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Affiliation(s)
- A Rolfs
- Membrane Biology Program and Renal Division, Department of Medicine, Brigham & Women's Hospital, Boston, MA 02115, USA.
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