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Zeng Y, Murali N, See CW, Liu J, Chi Y, Zhu D, Linsley CS, Wu BM, Li X. Effect of TiC Nanoparticles on a Zn-Al-Cu System for Biodegradable Cardiovascular Stent Applications. ACS Biomater Sci Eng 2024; 10:3438-3453. [PMID: 38564666 DOI: 10.1021/acsbiomaterials.3c01714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Despite being a weaker metal, zinc has become an increasingly popular candidate for biodegradable implant applications due to its suitable corrosion rate and biocompatibility. Previous studies have experimented with various alloy elements to improve the overall mechanical performance of pure Zn without compromising the corrosion performance and biocompatibility; however, the thermal stability of biodegradable Zn alloys has not been widely studied. In this study, TiC nanoparticles were introduced for the first time to a Zn-Al-Cu system. After hot rolling, TiC nanoparticles were uniformly distributed in the Zn matrix and effectively enabled phase control during solidification. The Zn-Cu phase, which was elongated and sharp in the reference alloy, became globular in the nanocomposite. The strength of the alloy, after introducing TiC nanoparticles, increased by 31% from 259.7 to 340.3 MPa, while its ductility remained high at 49.2% elongation to failure. Fatigue performance also improved greatly by adding TiC nanoparticles, increasing the fatigue limit by 47.6% from 44.7 to 66 MPa. Furthermore, TiC nanoparticles displayed excellent phase control capability during body-temperature aging. Without TiC restriction, Zn-Cu phases evolved into dendritic morphologies, and the Al-rich eutectic grew thicker at grain boundaries. However, both Zn-Cu and Al-rich eutectic phases remained relatively unchanged in shape and size in the nanocomposite. A combination of exceptional tensile properties, improved fatigue performance, better long-term stability with a suitable corrosion rate, and excellent biocompatibility makes this new Zn-Al-Cu-TiC material a promising candidate for biodegradable stents and other biodegradable applications.
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Affiliation(s)
- Yuxin Zeng
- Department of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
| | - Narayanan Murali
- Department of Materials Science and Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
| | - Carmine Wang See
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Jingke Liu
- Department of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
| | - Yitian Chi
- Department of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
| | - Donghui Zhu
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Chase S Linsley
- Department of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
| | - Benjamin M Wu
- Department of Materials Science and Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
- Department of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
- Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, California 90095, United States
- Department of Orthopedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, California 90095, United States
- The ADA Forsyth Institute, Cambridge, Massachusetts 02140, United States
| | - Xiaochun Li
- Department of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
- Department of Materials Science and Engineering, Samueli School of Engineering, University of California, Los Angeles, California 90095, United States
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Wang J, Gao P, Li MY, Ma JY, Li JY, Yang DL, Cui DL, Xiang P. Dermal bioaccessibility and cytotoxicity of heavy metals in urban soils from a typical plateau city: Implication for human health. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155544. [PMID: 35489519 DOI: 10.1016/j.scitotenv.2022.155544] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
The dermal exposure of heavy metals in contaminated urban soils poses huge environmental health risks globally. However, their dermal bioaccessibility and adverse effects on human skin cells were not fully understood. In this study, we measured the total and dermal bioaccessibility of Cr, As, Cd, Pb, and Cu in four selected urban soil samples from Kunming, Yunnan, China, and evaluated the cellular responses of these bioaccessible extracts on human keratinocytes (HaCaT). Among all the metals, only As in Soil-3 (S3) exceeded Chinese risk screening and Yunnan background values at 38.2 mg/kg. The average concentrations of Cr, As, Cd, Pb, and Cu in all soil samples were 47.79, 15.50, 3.11, 104.27, and 180.29 mg/kg respectively. Although relatively high concentrations of heavy metals were detected in soil samples, the highest dermal bioaccessibility of Cd was 3.57% with others' being lower than 1%. The bioaccessible dermal-absorbed doses (DADs) of Cr, As, Cd, Pb, and Cu from soils reflected acceptable health risks since all DADs were below the corresponding derived dermal reference values. However, the toxic data showed the extracts of S3 and S4 presented certain cytotoxicity in HaCaT cells, indicating the existing models based on dermal bioaccessibility and DADs may be not accurate enough to assess their human health risk. Taken together, the human health risk assessment should be modified by taking their skin cytotoxicity into account.
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Affiliation(s)
- Jie Wang
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Peng Gao
- Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, Pittsburgh, PA 15261, United States
| | - Meng-Ying Li
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Jiao-Yang Ma
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Jing-Ya Li
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Dan-Lei Yang
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Dao-Lei Cui
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Ping Xiang
- Yunnan Province Innovative Research Team of Environmental Pollution, Food Safety and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China.
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Bellouard M, Gasser M, Lenglet S, Gilardi F, Bararpour N, Augsburger M, Thomas A, Alvarez JC. Toxicity and Metabolomic Impact of Cobalt, Chromium, and Nickel Exposure on HepaRG Hepatocytes. Chem Res Toxicol 2022; 35:807-816. [PMID: 35442019 DOI: 10.1021/acs.chemrestox.1c00429] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cobalt, chromium, and nickel are used in orthopedic prostheses. They can be released, accumulate in many organs, and be toxic. The aim of this study is to evaluate the cytotoxicity of these metals on human hepatocytes and to improve our knowledge of their cellular toxicity mechanisms by metabolomic analysis. HepaRG cells were incubated for 48 h with increasing concentrations of metals to determine their IC50. Then, a nontargeted metabolomic study using liquid chromatography-high-resolution mass spectrometry (LC-HRMS) was done at IC50 and at a lower concentration (100 nM), near to those found in the blood and liver of patients with prostheses. IC50 were defined at 940, 2, and 1380 μM for Co, Cr, and Ni, respectively. In vitro, Cr appears to be much more toxic than Co and Ni. Metabolomic analysis revealed the disruption of metabolic pathways from the low concentration of 100 nM, in particular tryptophan metabolism and lipid metabolism illustrated by an increase in phenylacetylglycine, a marker of phospholipidosis, for all three metals. They also appear to be responsible for oxidative stress. Dysregulation of these pathways impacts hepatocyte metabolism and may result in hepatotoxicity. Further investigations on accessible biological matrices should be conducted to correlate our in vitro results with the clinical data of prostheses-bearing patients.
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Affiliation(s)
- Marie Bellouard
- Service de Pharmacologie-Toxicologie, Groupe Hospitalier Universitaire AP-HP, Paris-Saclay, Hôpital Raymond Poincaré, FHU Sepsis, 104 bvd R. Poincaré, 92380 Garches, France.,Plateforme MasSpecLab, UMR1173, Inserm, Université Paris Saclay (Versailles Saint Quentin-en-Yvelines), 2 Avenue de le Source de la Bièvre, 78180 Montigny-le-Bretonneux, France
| | - Marie Gasser
- Unit of Forensic Toxicology and Chemistry, CURML, Lausanne University Hospital, 1000 Lausanne 25, Switzerland.,Unit of Forensic Toxicology and Chemistry, CURML, Geneva University Hospitals, 1211 Geneva 4, Switzerland.,Faculty Unit of Toxicology, CURML, Faculty of Biology and Medicine, University of Lausanne, 1015 Lausanne, Switzerland
| | - Sébastien Lenglet
- Unit of Forensic Toxicology and Chemistry, CURML, Lausanne University Hospital, 1000 Lausanne 25, Switzerland.,Unit of Forensic Toxicology and Chemistry, CURML, Geneva University Hospitals, 1211 Geneva 4, Switzerland
| | - Federica Gilardi
- Unit of Forensic Toxicology and Chemistry, CURML, Lausanne University Hospital, 1000 Lausanne 25, Switzerland.,Unit of Forensic Toxicology and Chemistry, CURML, Geneva University Hospitals, 1211 Geneva 4, Switzerland.,Faculty Unit of Toxicology, CURML, Faculty of Biology and Medicine, University of Lausanne, 1015 Lausanne, Switzerland
| | - Nasim Bararpour
- Department of Genetics, Stanford School of Medicine, Stanford, California 94305, United States
| | - Marc Augsburger
- Unit of Forensic Toxicology and Chemistry, CURML, Lausanne University Hospital, 1000 Lausanne 25, Switzerland.,Unit of Forensic Toxicology and Chemistry, CURML, Geneva University Hospitals, 1211 Geneva 4, Switzerland
| | - Aurélien Thomas
- Unit of Forensic Toxicology and Chemistry, CURML, Lausanne University Hospital, 1000 Lausanne 25, Switzerland.,Unit of Forensic Toxicology and Chemistry, CURML, Geneva University Hospitals, 1211 Geneva 4, Switzerland.,Faculty Unit of Toxicology, CURML, Faculty of Biology and Medicine, University of Lausanne, 1015 Lausanne, Switzerland
| | - Jean-Claude Alvarez
- Service de Pharmacologie-Toxicologie, Groupe Hospitalier Universitaire AP-HP, Paris-Saclay, Hôpital Raymond Poincaré, FHU Sepsis, 104 bvd R. Poincaré, 92380 Garches, France.,Plateforme MasSpecLab, UMR1173, Inserm, Université Paris Saclay (Versailles Saint Quentin-en-Yvelines), 2 Avenue de le Source de la Bièvre, 78180 Montigny-le-Bretonneux, France
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Genotoxicity of chromium (III) and cobalt (II) and interactions between them. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2021. [DOI: 10.2478/cipms-2021-0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction. Chromium and cobalt are essential trace elements that are required only in a small amount, otherwise their excess can cause toxic effects.
Aim. The aim of this study was to determine the effects of chromium (III) and cobalt (II) and their combinations on genotoxicity in human fibroblasts cells (BJ).
Material and methods. In this work, comet and micronucleus assays were used. The BJ cells were exposed to chromium chloride and cobalt chloride at concentration ranges from 100 to 1400 µM. Mixtures of these elements were prepared so as to examine interactions between them.
Results. The present study shows the genotoxic effects of chromium (III) and cobalt (II) and their mixtures on BJ cells. In the comet assay, no comets were observed at the lowest concentrations; in the higher, a significant increase in their percentage was observed. In the other assay (formation of micronuclei), a statistically significant increase in the number of cells with micronuclei was observed in the BJ cells spiked with cobalt chloride and chromium chloride. In the case of simultaneous incubation of chromium chloride at 200 µM and cobalt chloride at 1000 µM in the BJ line, antagonism was observed. However, the interaction of chromium chloride at the 1000 µM and cobalt chloride at 200 µM leads to synergism between the studied elements.
Conclusions. Cobalt (II) and chromium (III) show genotoxic properties, they induce breaks in double and single-stranded DNA and they cause formation of AP-sites that do not have purine or pyrimidine bases.
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Dose- and time-dependent changes in viability and IL-6, CXCL8 and CCL2 production by HaCaT-cells exposed to cobalt. Effects of high and low calcium growth conditions. PLoS One 2021; 16:e0252159. [PMID: 34086734 PMCID: PMC8177526 DOI: 10.1371/journal.pone.0252159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/11/2021] [Indexed: 12/26/2022] Open
Abstract
Background Sensitization requires exposure to an allergen with subsequent production of a “danger “signal. In the skin, keratinocytes are the main producers of these signals. Objective To compare dose- and time-effects of cobalt on the viability of and cytokine release from HaCaT cells cultured at low or high calcium. Method To model two separate states of differentiation of keratinocytes, HaCaT cells were cultured under low or high calcium conditions. HaCaT were exposed to different concentrations of cobalt chloride (10 μm to 5 mM) over time (30 minutes– 48 hours). Cell viability was measured with the Cell-Titer Blue Viability assay. Cytokine production was measured using a bead-based immunoassay and flow cytometry. Gene expression was quantified using qPCR. Data was analyzed by ANOVA and linear mixed model. Results Viability of the cells was dose- and time-dependent. A linear mixed statistical model showed that cobalt exposure induces increase in IL-6, CXCL8 and CCL2 production over time and whereas increase of IL-6 and a decrease of CCL2 was associated with increasing cobalt chloride concentrations. When comparing the cells incubated under high and low calcium conditions, the more differentiated cells in the high concentration were found to exert a stronger response in terms of IL-6 release. Conclusions Our data suggest that cobalt chloride triggered an alarm system in HaCaT cells, and proinflammatory cytokines/chemokines were secreted in a dose- and time-dependent manner. When high and low calcium incubations were compared, the difference was seen only for IL-6. These findings indicate that the effect of cobalt chloride on cell toxicity occurs throughout the living epidermis.
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Kadiri VM, Günther JP, Kottapalli SN, Goyal R, Peter F, Alarcón-Correa M, Son K, Barad HN, Börsch M, Fischer P. Light- and magnetically actuated FePt microswimmers. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2021; 44:74. [PMID: 34076781 PMCID: PMC8172516 DOI: 10.1140/epje/s10189-021-00074-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 04/29/2021] [Indexed: 05/26/2023]
Abstract
Externally controlled microswimmers offer prospects for transport in biological research and medical applications. This requires biocompatibility of the swimmers and the possibility to tailor their propulsion mechanisms to the respective low Reynolds number environment. Here, we incorporate low amounts of the biocompatible alloy of iron and platinum (FePt) in its [Formula: see text] phase in microstructures by a versatile one-step physical vapor deposition process. We show that the hard magnetic properties of [Formula: see text] FePt are beneficial for the propulsion of helical micropropellers with rotating magnetic fields. Finally, we find that the FePt coatings are catalytically active and also make for Janus microswimmers that can be light-actuated and magnetically guided.
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Affiliation(s)
- Vincent Mauricio Kadiri
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Jan-Philipp Günther
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Sai Nikhilesh Kottapalli
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Rahul Goyal
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Florian Peter
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Mariana Alarcón-Correa
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Kwanghyo Son
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Hannah-Noa Barad
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Michael Börsch
- Jena University Hospital, Friedrich-Schiller University Jena, Nonnenplan 4, 07743, Jena, Germany
| | - Peer Fischer
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany.
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.
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Rimpiläinen T, Nunes A, Calado R, Fernandes AS, Andrade J, Ntungwe E, Spengler G, Szemerédi N, Rodrigues J, Gomes JP, Rijo P, Candeias NR. Increased antibacterial properties of indoline-derived phenolic Mannich bases. Eur J Med Chem 2021; 220:113459. [PMID: 33915373 DOI: 10.1016/j.ejmech.2021.113459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 01/22/2023]
Abstract
The search for antibacterial agents for the combat of nosocomial infections is a timely problem, as antibiotic-resistant bacteria continue to thrive. The effect of indoline substituents on the antibacterial properties of aminoalkylphenols was studied, leading to the development of a library of compounds with minimum inhibitory concentrations (MICs) as low as 1.18 μM. Two novel aminoalkylphenols were identified as particularly promising, after MIC and minimum bactericidal concentrations (MBC) determination against a panel of reference strain Gram-positive bacteria, and further confirmed against 40 clinical isolates (Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis, Enterococcus faecium, and Listeria monocytogenes). The same two aminoalkylphenols displayed low toxicity against two in vivo models (Artemia salina brine shrimp and Saccharomyces cerevisiae). The in vitro cytotoxicity evaluation (on human keratinocytes and human embryonic lung fibroblast cell lines) of the same compounds was also carried out. They demonstrated a particularly toxic effect on the fibroblast cell lines, with IC50 in the 1.7-5.1 μM range, thus narrowing their clinical use. The desired increase in the antibacterial properties of the aminoalkylphenols, particularly indoline-derived phenolic Mannich bases, was reached by introducing an additional nitro group in the indolinyl substituent or by the replacement of a methyl by a bioisosteric trifluoromethyl substituent in the benzyl group introduced through use of boronic acids in the Petasis borono-Mannich reaction. Notably, the introduction of an additional nitro moiety did not confer added toxicity to the aminoalkylphenols.
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Affiliation(s)
- Tatu Rimpiläinen
- Faculty of Engineering and Natural Sciences, Tampere University, Korkeakoulunkatu 8, 33101, Tampere, Finland
| | - Alexandra Nunes
- Department of Infectious Diseases, National Institute of Health, Avenida Padre Cruz, 1649-016, Lisboa, Portugal; Faculty of Veterinary Medicine, Lusófona University, Campo Grande 376, 1749-024, Lisboa, Portugal; CBIOS-Universidade Lusófona Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024, Lisboa, Portugal.
| | - Rita Calado
- Department of Infectious Diseases, National Institute of Health, Avenida Padre Cruz, 1649-016, Lisboa, Portugal
| | - Ana S Fernandes
- CBIOS-Universidade Lusófona Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024, Lisboa, Portugal
| | - Joana Andrade
- CBIOS-Universidade Lusófona Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024, Lisboa, Portugal
| | - Epole Ntungwe
- CBIOS-Universidade Lusófona Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024, Lisboa, Portugal
| | - Gabriella Spengler
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, 6720, Szeged, Hungary
| | - Nikoletta Szemerédi
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, 6720, Szeged, Hungary
| | - João Rodrigues
- Department of Infectious Diseases, National Institute of Health, Avenida Padre Cruz, 1649-016, Lisboa, Portugal
| | - João Paulo Gomes
- Department of Infectious Diseases, National Institute of Health, Avenida Padre Cruz, 1649-016, Lisboa, Portugal
| | - Patricia Rijo
- CBIOS-Universidade Lusófona Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024, Lisboa, Portugal; Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Nuno R Candeias
- Faculty of Engineering and Natural Sciences, Tampere University, Korkeakoulunkatu 8, 33101, Tampere, Finland; LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.
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8
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Naud C, Thébault C, Carrière M, Hou Y, Morel R, Berger F, Diény B, Joisten H. Cancer treatment by magneto-mechanical effect of particles, a review. NANOSCALE ADVANCES 2020; 2:3632-3655. [PMID: 36132753 PMCID: PMC9419242 DOI: 10.1039/d0na00187b] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/19/2020] [Indexed: 05/19/2023]
Abstract
Cancer treatment by magneto-mechanical effect of particles (TMMEP) is a growing field of research. The principle of this technique is to apply a mechanical force on cancer cells in order to destroy them thanks to magnetic particles vibrations. For this purpose, magnetic particles are injected in the tumor or exposed to cancer cells and a low-frequency alternating magnetic field is applied. This therapeutic approach is quite new and a wide range of treatment parameters are explored to date, as described in the literature. This review explains the principle of the technique, summarizes the parameters used by the different groups and reports the main in vitro and in vivo results.
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Affiliation(s)
- Cécile Naud
- Univ. Grenoble Alpes, CEA, CNRS, Spintec 38000 Grenoble France
- BrainTech Lab, U1205, INSERM, Univ. Grenoble Alpes, CHU-Grenoble France
| | | | - Marie Carrière
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES 38000 Grenoble France
| | - Yanxia Hou
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES 38000 Grenoble France
| | - Robert Morel
- Univ. Grenoble Alpes, CEA, CNRS, Spintec 38000 Grenoble France
| | - François Berger
- BrainTech Lab, U1205, INSERM, Univ. Grenoble Alpes, CHU-Grenoble France
| | - Bernard Diény
- Univ. Grenoble Alpes, CEA, CNRS, Spintec 38000 Grenoble France
| | - Hélène Joisten
- Univ. Grenoble Alpes, CEA, CNRS, Spintec 38000 Grenoble France
- Univ. Grenoble Alpes, CEA, LETI 38000 Grenoble France
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Guillot AJ, Cordeiro AS, Donnelly RF, Montesinos MC, Garrigues TM, Melero A. Microneedle-Based Delivery: An Overview of Current Applications and Trends. Pharmaceutics 2020; 12:pharmaceutics12060569. [PMID: 32575392 PMCID: PMC7355570 DOI: 10.3390/pharmaceutics12060569] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 12/18/2022] Open
Abstract
Microneedle arrays (MNA) are considered as one of the most promising resources to achieve systemic effects by transdermal delivery of drugs. They are designed as a minimally invasive, painless system which can bypass the stratum corneum, overcoming the potential drawbacks of subcutaneous injections and other transdermal delivery systems such as chemical enhancers, nano and microparticles, or physical treatments. As a trendy field in pharmaceutical and biomedical research, its applications are constantly evolving, even though they are based on very well-established techniques. The number of molecules administered by MNA are also increasing, with insulin and vaccines administration being the most investigated. Furthermore, MNA are being used to deliver cells and applied in other organs and tissues like the eyes and buccal mucosae. This review intends to offer a general overview of the current state of MNA research, focusing on the strategies, applications, and types of molecules delivered recently by these systems. In addition, some information about the materials and manufacturing processes is presented and safety data is discussed.
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Affiliation(s)
- Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
| | - Ana Sara Cordeiro
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.S.C.); (R.F.D.)
| | - Ryan F. Donnelly
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.S.C.); (R.F.D.)
| | - M. Carmen Montesinos
- Department of Pharmacology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain
- Center of Molecular Recognition and Technological Development (IDM), 46100 Burjassot, Spain
- Correspondence: (M.C.M.); (T.M.G.)
| | - Teresa M. Garrigues
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
- Correspondence: (M.C.M.); (T.M.G.)
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
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10
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Kadiri VM, Bussi C, Holle AW, Son K, Kwon H, Schütz G, Gutierrez MG, Fischer P. Biocompatible Magnetic Micro- and Nanodevices: Fabrication of FePt Nanopropellers and Cell Transfection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001114. [PMID: 32378269 DOI: 10.1002/adma.202001114] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 05/22/2023]
Abstract
The application of nanoparticles for drug or gene delivery promises benefits in the form of single-cell-specific therapeutic and diagnostic capabilities. Many methods of cell transfection rely on unspecific means to increase the transport of genetic material into cells. Targeted transport is in principle possible with magnetically propelled micromotors, which allow responsive nanoscale actuation and delivery. However, many commonly used magnetic materials (e.g., Ni and Co) are not biocompatible, possess weak magnetic remanence (Fe3 O4 ), or cannot be implemented in nanofabrication schemes (NdFeB). Here, it is demonstrated that co-depositing iron (Fe) and platinum (Pt) followed by one single annealing step, without the need for solution processing, yields ferromagnetic FePt nanomotors that are noncytotoxic, biocompatible, and possess a remanence and magnetization that rival those of permanent NdFeB micromagnets. Active cell targeting and magnetic transfection of lung carcinoma cells are demonstrated using gradient-free rotating millitesla fields to drive the FePt nanopropellers. The carcinoma cells express enhanced green fluorescent protein after internalization and cell viability is unaffected by the presence of the FePt nanopropellers. The results establish FePt, prepared in the L10 phase, as a promising magnetic material for biomedical applications with superior magnetic performance, especially for micro- and nanodevices.
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Affiliation(s)
- Vincent Mauricio Kadiri
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, Stuttgart, 70569, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart, 70569, Germany
| | - Claudio Bussi
- Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
| | - Andrew W Holle
- Max Planck Institute for Medical Research, Jahnstraße 29, Heidelberg, 69120, Germany
| | - Kwanghyo Son
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, Stuttgart, 70569, Germany
| | - Hyunah Kwon
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, Stuttgart, 70569, Germany
| | - Gisela Schütz
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, Stuttgart, 70569, Germany
| | | | - Peer Fischer
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, Stuttgart, 70569, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart, 70569, Germany
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11
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Nickel Nanoparticles Induce the Synthesis of a Tumor-Related Polypeptide in Human Epidermal Keratinocytes. NANOMATERIALS 2020; 10:nano10050992. [PMID: 32455808 PMCID: PMC7279538 DOI: 10.3390/nano10050992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 01/29/2023]
Abstract
Although nickel allergy and carcinogenicity are well known, their molecular mechanisms are still uncertain, thus demanding studies at the molecular level. The nickel carcinogenicity is known to be dependent on the chemical form of nickel, since only certain nickel compounds can enter the cell. This study investigates, for the first time, the cytotoxicity, cellular uptake, and molecular targets of nickel nanoparticles (NiNPs) in human skin cells in comparison with other chemical forms of nickel. The dose-response curve that was obtained for NiNPs in the cytotoxicity assays showed a linear behavior typical of genotoxic carcinogens. The exposure of keratinocytes to NiNPs leads to the release of Ni2+ ions and its accumulation in the cytosol. A 6 kDa nickel-binding molecule was found to be synthesized by cells exposed to NiNPs at a dose corresponding to medium mortality. This molecule was identified to be tumor-related p63-regulated gene 1 protein.
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12
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Hindelang B, Aguirre J, Berezhnoi A, He H, Eyerich K, Ntziachristos V, Biedermann T, Darsow U. Optoacoustic mesoscopy shows potential to increase accuracy of allergy patch testing. Contact Dermatitis 2020; 83:206-214. [DOI: 10.1111/cod.13563] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Benedikt Hindelang
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Juan Aguirre
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Andrei Berezhnoi
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Hailong He
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Kilian Eyerich
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
| | - Ulf Darsow
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
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Petushkova NA, Rusanov AL, Pyatnitskiy MA, Larina OV, Zgoda VG, Lisitsa AV, Luzgina NG. Proteomic characterization of HaCaT keratinocytes provides new insights into changes associated with SDS exposure. BIOMEDICAL DERMATOLOGY 2020. [DOI: 10.1186/s41702-019-0054-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
Background
Using human keratinocyte HaCaT cell line model, we screened for proteins that changed their content due to SDS exposure in non-toxic dose (25 μg/ml, as determined by the MTT assay and microscopic examination) during 48 h.
Methods
The altered level of proteins from HaCaT keratinocytes exposed to SDS was analyzed by LC-MS/MS approach and quantified using Progenesis LC software.
Results
The Pathview map of 131 upregulated proteins was built, and enhancement of glycolysis/gluconeogenesis was found.
Conclusions
The results of our study admit the possibility of promotion of the cutaneous neoplasia and/or the peculiarity of the response of immortalized keratinocytes to the SDS treatment and provide new insights into possible role of SDS as integrator of diverse signaling that influence cell fate decisions.
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14
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Magrone T, Russo MA, Jirillo E. Impact of Heavy Metals on Host Cells: Special Focus on Nickel-Mediated Pathologies and Novel Interventional Approaches. Endocr Metab Immune Disord Drug Targets 2019; 20:1041-1058. [PMID: 31782370 DOI: 10.2174/1871530319666191129120253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/13/2019] [Accepted: 05/28/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Heavy metals [arsenic, aluminium, cadmium, chromium, cobalt, lead, nickel (Ni), palladium and titanium] are environmental contaminants able to impact with host human cells, thus, leading to severe damage. OBJECTIVE In this review, the detrimental effects of several heavy metals on human organs will be discussed and special emphasis will be placed on Ni. In particular, Ni is able to interact with Toll-like receptor-4 on immune and non-immune cells, thus, triggering the cascade of pro-inflammatory cytokines. Then, inflammatory and allergic reactions mediated by Ni will be illustrated within different organs, even including the central nervous system, airways and the gastrointestinal system. DISCUSSION Different therapeutic strategies have been adopted to mitigate Ni-induced inflammatoryallergic reactions. In this context, the ability of polyphenols to counteract the inflammatory pathway induced by Ni on peripheral blood leukocytes from Ni-sensitized patients will be outlined. In particular, polyphenols are able to decrease serum levels of interleukin (IL)-17, while increasing levels of IL- 10. These data suggest that the equilibrium between T regulatory cells and T helper 17 cells is recovered with IL-10 acting as an anti-inflammatory cytokine. In the same context, polyphenols reduced elevated serum levels of nitric oxide, thus, expressing their anti-oxidant potential. Finally, the carcinogenic potential of heavy metals, even including Ni, will be highlighted. CONCLUSION Heavy metals, particularly Ni, are spread in the environment. Nutritional approaches seem to represent a novel option in the treatment of Ni-induced damage and, among them, polyphenols should be taken into consideration for their anti-oxidant and anti-inflammatory activities.
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Affiliation(s)
- Thea Magrone
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, School of Medicine, University of Bari, Bari, Italy
| | - Matteo A Russo
- MEBIC Consortium, San Raffaele Open University of Rome and IRCCS San Raffaele Pisana of Rome, Rome, Italy
| | - Emilio Jirillo
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, School of Medicine, University of Bari, Bari, Italy
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15
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Finlayson KA, Leusch FDL, van de Merwe JP. Cytotoxicity of organic and inorganic compounds to primary cell cultures established from internal tissues of Chelonia mydas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 664:958-967. [PMID: 30769319 DOI: 10.1016/j.scitotenv.2019.02.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 01/30/2019] [Accepted: 02/03/2019] [Indexed: 06/09/2023]
Abstract
Chemical contaminants have been found in the tissues of sea turtles from all over the world; however, very little is known about the effects. Recently, in vitro alternatives to live animal testing have been applied to sea turtles due to their ethical and practical benefits. While primary skin fibroblasts have been established for several species of sea turtle, cells from internal organs are lacking, though they may be more relevant due to the well documented accumulation of contaminants within internal tissues. This study established primary cell cultures from the small intestine, heart, liver, ovary and skin of green turtles (Chelonia mydas). Cells were exposed to ten contaminants typically found in sea turtles to examine potential variations in sensitivity among cells established from different organs. Differences between cells established from different animals were also examined, including a comparison of cells established from a turtle with fibropapillomatosis (FP) and healthy turtles. Loggerhead (Caretta caretta) primary skin cells were also included for species comparisons. Significant differences were found between the organ types, with liver and heart being the least sensitive, and skin being the most sensitive. Overall, variation between the organ types was low. Primary skin fibroblasts may be a suitable and representative cell type for in vitro turtle toxicology research, as it is relatively easy to obtain from healthy live animals. Skin cultures provide a more sensitive indication of effect, and could be used as an early warning of the potential effects of chemical contamination. Some species differences were found but no differences were found between cell cultures from an FP turtle and healthy turtles. When EC50 values were compared to accumulation values from the literature, inorganic contaminants, such as Zn, Cd, Cr, Hg, and Cu were identified as posing a potential risk to sea turtle populations around the world.
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Affiliation(s)
- Kimberly A Finlayson
- Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Australia.
| | - Frederic D L Leusch
- Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Australia
| | - Jason P van de Merwe
- Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Australia
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16
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Cell Viability in Normal Fibroblasts and Liver Cancer Cells After Treatment with Iron (III), Nickel (II), and their Mixture. J Vet Res 2018; 62:535-542. [PMID: 30729213 PMCID: PMC6364161 DOI: 10.2478/jvetres-2018-0067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/16/2018] [Indexed: 12/13/2022] Open
Abstract
Introduction Nickel and iron are very commonly occurring metals. Nickel is used in industry, but nowadays it is also used in medical biomaterials. Iron is an element necessary for cell metabolism and is used in diet supplements and biomaterials, whence it may be released along with nickel. Material and Methods BALB/3T3 and HepG2 cells were incubated with iron chloride or nickel chloride at concentrations ranging from 100 to 1,400 μM. The following mixtures were used: iron chloride 200 μM plus nickel chloride 1,000 μM, or iron chloride 1,000 μM plus nickel chloride 200 μM. The cell viability was determined with MTT, LHD, and NRU tests. Results A decrease in cell viability was observed after incubating the BALB/3T3 and HepG2 cells with iron chloride or nickel chloride. A synergistic effect was observed after iron chloride 1,000 μM plus nickel chloride 200 μM treatment in all assays. Moreover, the same effect was observed in the pair iron chloride 200 μM plus nickel chloride 1,000 μM in the LDH and NRU assays. Conclusions Iron (III) and nickel (II) decrease cell viability. Iron chloride at a concentration of 200 μM protects mitochondria from nickel chloride toxicity.
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Tucovic D, Popov Aleksandrov A, Mirkov I, Ninkov M, Kulas J, Zolotarevski L, Vukojevic V, Mutic J, Tatalovic N, Kataranovski M. Oral cadmium exposure affects skin immune reactivity in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:12-20. [PMID: 30092388 DOI: 10.1016/j.ecoenv.2018.07.117] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/11/2018] [Accepted: 07/28/2018] [Indexed: 06/08/2023]
Abstract
Skin can acquire cadmium (Cd) by oral route, but there is paucity of data concerning cutaneous effects of this metal. Cd acquired by oral route can affect skin wound healing, but the effect of Cd on other activities involved in skin homeostasis, including skin immunity, are not explored. Using the rat model of 30-day oral administration of Cd (5 ppm and 50 ppm) in drinking water, basic aspects of immune-relevant activity of epidermal cells were examined. Dose-dependent Cd deposition in the the skin was observed (0.035 ± 0.02 µg/g and 0.127 ± 0.04 µg/g at 5 ppm and 50 ppm, respectively, compared to 0.012 ± 0.009 µg/g at 0 ppm of Cd). This resulted in skin inflammation (oxidative stress at both Cd doses and dose-dependent structural changes in the skin and the presence/activation of innate immunity cells). At low Cd dose inflammatory response (nitric oxide and IL-1β) was observed. Other inflammatory cytokines (IL-6 and TNF) response occurred at 50 ppm, which was increased further following skin sensitization with contact allergen dinitro-chlorobenzene (DNCB). Epidermal cells exposed to both Cd doses enhanced concanavalin A (ConA)-stimulated lymphocyte production of IL-17. This study showed for the first time the effect of the metal which gained access to the skin via gut on immune reactivity of epidermal cells. Presented data might be relevant for the link between dietary Cd and the risk of skin pathologies.
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Affiliation(s)
- Dina Tucovic
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Aleksandra Popov Aleksandrov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Ivana Mirkov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Marina Ninkov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Jelena Kulas
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Lidija Zolotarevski
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Vesna Vukojevic
- Innovation Center of the Faculty of Chemistry, University of Belgrade, 12-16 Studentski trg, 11000 Belgrade, Serbia
| | - Jelena Mutic
- Innovation Center of the Faculty of Chemistry, University of Belgrade, 12-16 Studentski trg, 11000 Belgrade, Serbia
| | - Nikola Tatalovic
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia
| | - Milena Kataranovski
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 142 Bulevar despota Stefana, 11000 Belgrade, Serbia; Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, 16 Studentski trg, 11000 Belgrade, Serbia.
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18
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Imaninezhad M, Pemberton K, Xu F, Kalinowski K, Bera R, Zustiak SP. Directed and enhanced neurite outgrowth following exogenous electrical stimulation on carbon nanotube-hydrogel composites. J Neural Eng 2018; 15:056034. [DOI: 10.1088/1741-2552/aad65b] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Alex SA, Chandrasekaran N, Mukherjee A. Using gold nanorod-based colorimetric sensor for determining chromium in biological samples. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Turan IS, Gunaydin G, Ayan S, Akkaya EU. Molecular demultiplexer as a terminator automaton. Nat Commun 2018; 9:805. [PMID: 29476048 PMCID: PMC5824880 DOI: 10.1038/s41467-018-03259-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 01/31/2018] [Indexed: 11/09/2022] Open
Abstract
Molecular logic gates are expected to play an important role on the way to information processing therapeutic agents, especially considering the wide variety of physical and chemical responses that they can elicit in response to the inputs applied. Here, we show that a 1:2 demultiplexer based on a Zn2+-terpyridine-Bodipy conjugate with a quenched fluorescent emission, is efficient in photosensitized singlet oxygen generation as inferred from trap compound experiments and cell culture data. However, once the singlet oxygen generated by photosensitization triggers apoptotic response, the Zn2+ complex then interacts with the exposed phosphatidylserine lipids in the external leaflet of the membrane bilayer, autonomously switching off singlet oxygen generation, and simultaneously switching on a bright emission response. This is the confirmatory signal of the cancer cell death by the action of molecular automaton and the confinement of unintended damage by excessive singlet oxygen production.
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Affiliation(s)
- Ilke S Turan
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
| | - Gurcan Gunaydin
- Department of Basic Oncology, Hacettepe University, 06100, Ankara, Turkey
| | - Seylan Ayan
- Department of Chemistry, Bilkent University, 06800, Ankara, Turkey
| | - Engin U Akkaya
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey. .,Department of Chemistry, Bilkent University, 06800, Ankara, Turkey.
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Mai W, Lu D, Liu X, Chen L. MCP-1 produced by keratinocytes is associated with leucocyte recruitment during elicitation of nickel-induced occupational allergic contact dermatitis. Toxicol Ind Health 2017; 34:36-43. [PMID: 29132256 DOI: 10.1177/0748233717738633] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
To investigate the expression profile of monocyte chemoattractant peptide-1 (MCP-1) by keratinocytes after nickel exposure and to identify its role for leucocyte migration during nickel-induced occupational allergic contact dermatitis (OACD), 26 workers diagnosed with nickel-induced OACD were enrolled. Skin biopsies from the positive nickel-challenged sites at different time points were assessed by immunohistochemistry (IHC) for MCP-1, CD68, CD45RO, and in situ hybridization (ISH) for MCP-1, using chronic periumbilical dermititis as controls. The expressions of MCP-1 in HaCaT cell culture after nickel treatment were quantified by enzyme-linked immunosorbent assay. The results showed that at positive nickel-challenged sites, strong expressions of MCP-1, both messenger RNA (mRNA) and protein, were detected in the basal keratinocytes during the early phase (24-48 h after nickel application), paralleled by the recruitment of CD68+ and CD45RO+ cells to the skin compartments. The expressions of MCP-1 declined gradually in the late phase (72-96 h after nickel application). Treatment with nickel sulfate at noncytotoxic concentrations (0.01-100 µM) induced a concentration-related elevation of MCP-1 expression by HaCaT cells compared to the untreated cells. The data indicated that a temporal expression pattern of MCP-1 produced by keratinocytes after nickel exposure was involved in the complex process of mononuclear cell infiltration during elicitation of nickel-induced OACD. Targeting MCP-1 might be a potential therapeutic strategy for OACD.
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Affiliation(s)
- Weihua Mai
- 1 Department of Preventive Medicine, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Dongqing Lu
- 2 Department of Dermatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Xingwei Liu
- 3 Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Ling Chen
- 4 Department of Medical Quality Control, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
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22
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Anti-apoptotic and moderate anti-inflammatory effects of berberine in sulfur mustard exposed keratinocytes. Toxicol Lett 2017; 293:2-8. [PMID: 28916288 DOI: 10.1016/j.toxlet.2017.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 09/06/2017] [Accepted: 09/11/2017] [Indexed: 11/21/2022]
Abstract
Skin affections after sulfur mustard (SM) exposure include erythema, blister formation and severe inflammation. An antidote or specific therapy does not exist. Anti-inflammatory compounds as well as substances counteracting SM-induced cell death are under investigation. In this study, we investigated the benzylisoquinoline alkaloide berberine (BER), a metabolite in plants like berberis vulgaris, which is used as herbal pharmaceutical in Asian countries, against SM toxicity using a well-established in vitro approach. Keratinocyte (HaCaT) mono-cultures (MoC) or HaCaT/THP-1 co-cultures (CoC) were challenged with 100, 200 or 300mM SM for 1h. Post-exposure, both MoC and CoC were treated with 10, 30 or 50μM BER for 24h. At that time, supernatants were collected and analyzed both for interleukine (IL) 6 and 8 levels and for content of adenylate-kinase (AK) as surrogate marker for cell necrosis. Cells were lysed and nucleosome formation as marker for late apoptosis was assessed. In parallel, AK in cells was determined for normalization purposes. BER treatment did not influence necrosis, but significantly decreased apoptosis. Anti-inflammatory effects were moderate, but also significant, primarily in CoC. Overall, BER has protective effects against SM toxicity in vitro. Whether this holds true should be evaluated in future in vivo studies.
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Bonefeld CM, Geisler C, Gimenéz-Arnau E, Lepoittevin JP, Uter W, Johansen JD. Immunological, chemical and clinical aspects of exposure to mixtures of contact allergens. Contact Dermatitis 2017; 77:133-142. [DOI: 10.1111/cod.12847] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/18/2017] [Accepted: 05/20/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Charlotte M. Bonefeld
- Faculty of Health and Medical Sciences, Department of Immunology and Microbiology; University of Copenhagen; 2200 Copenhagen Denmark
| | - Carsten Geisler
- Faculty of Health and Medical Sciences, Department of Immunology and Microbiology; University of Copenhagen; 2200 Copenhagen Denmark
| | - Elena Gimenéz-Arnau
- Laboratory of Dermatochemistry, Institute of Chemistry-CNRS UMR 7177; University of Strasbourg; 67081 Strasbourg France
| | - Jean-Pierre Lepoittevin
- Laboratory of Dermatochemistry, Institute of Chemistry-CNRS UMR 7177; University of Strasbourg; 67081 Strasbourg France
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology; University of Erlangen/Nürnberg; 91054 Erlangen Germany
| | - Jeanne D. Johansen
- Department of Dermatology-Allergy, National Allergy Research Centre; Copenhagen University Hospital Gentofte; 2900 Hellerup Denmark
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Katic V, Curkovic L, Bosnjak MU, Peros K, Mandic D, Spalj S. Effect of pH, fluoride and hydrofluoric acid concentration on ion release from NiTi wires with various coatings. Dent Mater J 2017; 36:149-156. [PMID: 28111387 DOI: 10.4012/dmj.2016-169] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aim was to determine effect of pH, fluoride (F-) and hydrofluoric acid concentration (HF) on dynamic of nickel (Ni2+) and titanium (Ti4+) ions release. Nickel-titanium wires with untreated surface (NiTi), rhodium (RhNiTi) and nitride (NNiTi) coating were immersed once a week for five min in remineralizing agents, followed by immersion to artificial saliva. Ion release was recorded after 3, 7, 14, 21 and 28 days. Pearson correlations and linear regression were used for statistical analysis. Release of Ni2+ from NiTi and NNiTi wires correlated highly linearly positively with HF (r=0.948 and 0.940, respectively); for RhNiTi the correlation was lower and negative (r=-0.605; p<0.05). The prediction of Ti4+ release was significant for NiTi (r=0.797) and NNiTi (r=0.788; p<0.05) wire. Association with F- was lower; for pH it was not significant. HF predicts the release of ions from the NiTi wires better than the pH and F- of the prophylactic agents.
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Affiliation(s)
- Visnja Katic
- Department of Orthodontics, Faculty of Medicine, University of Rijeka
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Junaid M, Hashmi MZ, Malik RN, Pei DS. Toxicity and oxidative stress induced by chromium in workers exposed from different occupational settings around the globe: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20151-20167. [PMID: 27562808 DOI: 10.1007/s11356-016-7463-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 08/10/2016] [Indexed: 05/22/2023]
Abstract
The present review focused on the levels and toxicological status of heavy metals especially chromium (Cr) in the exposed workers from different occupational settings around the globe and in Pakistan. It was found that exposed workers from leather tanning and metal plating units showed elevated levels of Cr than the workers from other occupational settings. Cr and other heavy metals level in biological matrices of the exposed workers in different occupational settings revealed that developing countries are severely contaminated. Occupational settings from the Sialkot district, Pakistan exhibited elevated level of Cr in biological entities of the exposed workers. Review suggested that higher level of Cr exposure to the workers enhance the oxidative stress (reactive oxygen species (ROS) and hydroxyl (OH) radical generation) which may cause; cellular and molecular damage such as genotoxicity and chromosomal aberration formations, and carcinogenic effects. This review will help to understand the Cr contamination mechanisms and associated health implications in different occupational settings around the globe in general and particularly to Pakistan. This study will also assist occupational health and safety management authorities to devise or change the Cr recommended exposure limits (REL) for different occupational settings.
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Affiliation(s)
- Muhammad Junaid
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Department of Environmental Sciences, Environmental Biology and Ecotoxicology Lab, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Research Center for Environment and Health, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Muhammad Zaffar Hashmi
- Department of Meteorology, COMSATS Institute of Information Technology, Islamabad, Pakistan.
| | - Riffat Naseem Malik
- Department of Environmental Sciences, Environmental Biology and Ecotoxicology Lab, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
| | - De-Sheng Pei
- Research Center for Environment and Health, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
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Hoop M, Mushtaq F, Hurter C, Chen XZ, Nelson BJ, Pané S. A smart multifunctional drug delivery nanoplatform for targeting cancer cells. NANOSCALE 2016; 8:12723-8. [PMID: 27297037 DOI: 10.1039/c6nr02228f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Wirelessly guided magnetic nanomachines are promising vectors for targeted drug delivery, which have the potential to minimize the interaction between anticancer agents and healthy tissues. In this work, we propose a smart multifunctional drug delivery nanomachine for targeted drug delivery that incorporates a stimuli-responsive building block. The nanomachine consists of a magnetic nickel (Ni) nanotube that contains a pH-responsive chitosan hydrogel in its inner cavity. The chitosan inside the nanotube serves as a matrix that can selectively release drugs in acidic environments, such as the extracellular space of most tumors. Approximately a 2.5 times higher drug release from Ni nanotubes at pH = 6 is achieved compared to that at pH = 7.4. The outside of the Ni tube is coated with gold. A fluorescein isothiocyanate (FITC) labeled thiol-ssDNA, a biological marker, was conjugated on its surface by thiol-gold click chemistry, which enables traceability. The Ni nanotube allows the propulsion of the device by means of external magnetic fields. As the proposed nanoarchitecture integrates different functional building blocks, our drug delivery nanoplatform can be employed for carrying molecular drug conjugates and for performing targeted combinatorial therapies, which can provide an alternative and supplementary solution to current drug delivery technologies.
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Affiliation(s)
- M Hoop
- Institute of Robotics and Intelligent Systems (IRIS), ETH Zurich, Tannenstrasse 3, CH-8092 Zurich, Switzerland.
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Salsano F, Francia C, Roumpedaki I, Proietti M, Pisarri S, Verna N, Gabriele E, Di Gioacchino G, Di Gioacchino M. Immune Effects of Nickel. Int J Immunopathol Pharmacol 2016; 17:63-9. [PMID: 15345194 DOI: 10.1177/03946320040170s211] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Data on nickel immunomodulation are contradictory. The most consistent immune effects are suppression of immune responses. It has been show that T-lymphocytes and NK cells are more susceptible to nickel toxicity than are B lymphocytes or macrophages. Data reported about cytokine production in human and nickel reactive T-cell clones are also conflicting. Some authors studied cytokine production PBMC cultures of nickel allergic individuals after stimulation with NiSo4. They showed a higher synthesis of IL4, IL5 and IL13 but not of IFN gamma and TNFα in Ni allergic subjects. We found that the addiction of NiSo4 to the PBMC cultures of non sensitised subjects induces a reduction of release of IL5, IFN γ and TNFα. Our studies demonstrate a clear difference in NK cell activity between nickel-tolerant and intolerant individuals. In particular NK cell activity in reduced in sensitised patients respect to the normal subjects and the addition of Ni to the PBMC cultures induce a significant decrease of NK cell activity. The decrease was greater in cell derived from allergic subjects than non allergic. In conclusion, reported data show Ni has immunotoxic potential. Researches are in progress in an attempt to correlate the present data with other immune parameters and to measure the effects of a Ni free diet on the immune system of subjects with Ni intolerance. The comprehension of the mechanisms inducing these changes requires further studies in the uptake and intracellular distribution and binding of the metal.
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Affiliation(s)
- F Salsano
- Department of Clinical Medicine, Clinical Immunology and Allergology Section, La Sapienza University, Rome, Italy.
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Singh J, Thakur IS. Evaluation of cyanobacterial endolith Leptolyngbya sp. ISTCY101, for integrated wastewater treatment and biodiesel production: A toxicological perspective. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.07.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Qian Z, Chai L, Zhou Q, Huang Y, Tang C, Chen J, Feng H. Reversible Fluorescent Nanoswitch Based on Carbon Quantum Dots Nanoassembly for Real-Time Acid Phosphatase Activity Monitoring. Anal Chem 2015; 87:7332-9. [DOI: 10.1021/acs.analchem.5b01488] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zhaosheng Qian
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Lujing Chai
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Qian Zhou
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Yuanyuan Huang
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Cong Tang
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Jianrong Chen
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Hui Feng
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
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Zhu Y, Zhang Y, Shi G, Yang J, Zhang J, Li W, Li A, Tai R, Fang H, Fan C, Huang Q. Nanodiamonds act as Trojan horse for intracellular delivery of metal ions to trigger cytotoxicity. Part Fibre Toxicol 2015; 12:2. [PMID: 25651858 PMCID: PMC4374301 DOI: 10.1186/s12989-014-0075-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 12/11/2014] [Indexed: 01/20/2023] Open
Abstract
Background Nanomaterials hold great promise for applications in the delivery of various molecules with poor cell penetration, yet its potential for delivery of metal ions is rarely considered. Particularly, there is limited insight about the cytotoxicity triggered by nanoparticle-ion interactions. Oxidative stress is one of the major toxicological mechanisms for nanomaterials, and we propose that it may also contribute to nanoparticle-ion complexes induced cytotoxicity. Methods To explore the potential of nanodiamonds (NDs) as vehicles for metal ion delivery, we used a broad range of experimental techniques that aimed at getting a comprehensive assessment of cell responses after exposure of NDs, metal ions, or ND-ion mixture: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, Trypan blue exclusion text, optical microscope observation, synchrotron-based scanning transmission X-ray microscopy (STXM) and micro X-ray fluorescence (μXRF) microscopy, inductively coupled plasma-mass spectrometry (ICP-MS), reactive oxygen species (ROS) assay and transmission electron microscopy (TEM) observation. In addition, theoretical calculation and molecular dynamics (MD) computation were used to illustrate the adsorption properties of different metal ion on NDs as well as release profile of ion from ND-ion complexes at different pH values. Results The adsorption capacity of NDs for different metal ions was different, and the adsorption for Cu2+ was the most strong among divalent metal ions. These different ND-ion complexes then had different cytotoxicity by influencing the subsequent cellular responses. Detailed investigation of ND-Cu2+ interaction showed that the amount of released Cu2+ from ND-Cu2+ complexes at acidic lysosomal conditions was much higher than that at neutral conditions, leading to the elevation of intracellular ROS level, which triggered cytotoxicity. By theoretical approaches, we demonstrated that the functional carbon surface and cluster structures of NDs made them good vehicles for metal ions delivery. Conclusions NDs played the Trojan horse role by allowing large amounts of metal ions accumulate into living cells followed by subsequent release of ions in the interior of cells, which then led to cytotoxicity. The present experimental and theoretical results provide useful insight into understanding of cytotoxicity triggered by nanoparticle-ion interactions, and open new ways in the interpretation of nanotoxicity. Electronic supplementary material The online version of this article (doi:10.1186/s12989-014-0075-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ying Zhu
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - Yu Zhang
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China. .,Graduate School of the Chinese Academy of Sciences, Beijing, 100049, China.
| | - Guosheng Shi
- Laboratory of Water Science and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - Jinrong Yang
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049, China. .,Laboratory of Water Science and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - Jichao Zhang
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - Wenxin Li
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - Aiguo Li
- Shanghai Synchrotron Radiation Facility, Shanghai, 201203, China.
| | - Renzhong Tai
- Shanghai Synchrotron Radiation Facility, Shanghai, 201203, China.
| | - Haiping Fang
- Laboratory of Water Science and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - Chunhai Fan
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China. .,School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, China.
| | - Qing Huang
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
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Milheiro A, Nozaki K, Kleverlaan CJ, Muris J, Miura H, Feilzer AJ. In vitro cytotoxicity of metallic ions released from dental alloys. Odontology 2014; 104:136-42. [PMID: 25549610 DOI: 10.1007/s10266-014-0192-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 12/15/2014] [Indexed: 10/24/2022]
Abstract
The cytotoxicity of a dental alloy depends on, but is not limited to, the extent of its corrosion behavior. Individual ions may have effects on cell viability that are different from metals interacting within the alloy structure. We aimed to investigate the cytotoxicity of individual metal ions in concentrations similar to those reported to be released from Pd-based dental alloys on mouse fibroblast cells. Metal salts were used to prepare seven solutions (concentration range 100 ppm-1 ppb) of the transition metals, such as Ni(II), Pd(II), Cu(II), and Ag(I), and the metals, such as Ga(III), In(III), and Sn(II). Cytotoxicity on mouse fibroblasts L929 was evaluated using the MTT assay. Ni, Cu, and Ag are cytotoxic at 10 ppm, Pd and Ga at 100 ppm. Sn and In were not able to induce cytotoxicity at the tested concentrations. Transition metals were able to induce cytotoxic effects in concentrations similar to those reported to be released from Pd-based dental alloys. Ni, Cu, and Ag were the most cytotoxic followed by Pd and Ga; Sn and In were not cytotoxic. Cytotoxic reactions might be considered in the etiopathogenesis of clinically observed local adverse reactions.
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Affiliation(s)
- Ana Milheiro
- Department of Dental Materials Science, ACTA, University of Amsterdam and VU University, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands.
| | - Kosuke Nozaki
- Department of Material Biofunctions, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Cornelis J Kleverlaan
- Department of Dental Materials Science, ACTA, University of Amsterdam and VU University, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands
| | - Joris Muris
- Department of Dental Materials Science, ACTA, University of Amsterdam and VU University, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands
| | - Hiroyuki Miura
- Department of Fixed Prosthodontics, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Albert J Feilzer
- Department of Dental Materials Science, ACTA, University of Amsterdam and VU University, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands
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Rizzi M, Cravello B, Renò F. Textile industry manufacturing by-products induce human melanoma cell proliferation via ERK1/2 activation. Cell Prolif 2014; 47:578-86. [PMID: 25224575 PMCID: PMC6496927 DOI: 10.1111/cpr.12132] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 06/28/2014] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVES Textiles used to make clothing can represent a source, often ignored, of chemicals potentially noxious to both skin and the whole organism. Among the most frequently produced potentially noxious chemical manufacturing by-products are formaldehyde (FA), nickel (Ni) and hexavalent chromium (Cr); they are of potential clinical interest as all are known to be carcinogenic to humans and to be potent skin sensitizers. The aim of this study was to investigate, in vitro, effects of these potentially dangerous compounds on two different melanoma cell lines. In particular, attention was focused on A375P, a poorly metastatic and low invasive cell line and SK-MEL-28, a highly metastatic cell line. MATERIALS AND METHODS Effects of these compounds was evaluated on A375P and SK-MEL-28 cells. FA (1-5 × 10(-5) m), NiSO4 (10(-6) -10(-3) m), K2 Cr2 O7 (10(-7) -10(-6) m) effects on cell proliferation were evaluated by cell counting, while ERK pathway involvement was evaluated by Western blot analysis. RESULTS Low concentrations of the chemicals, covering a range that corresponds to commonly accepted limits in textile production, induced a significant increase in cell proliferation concomitant with transient activation of phosphorylated ERK expression. CONCLUSIONS Data obtained suggest that increasing attention must be focused on these by-products' potentially harmful effects in chemical manufacturing of clothes and accessories, that remain for long periods of time, in contact with human skin.
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Affiliation(s)
- M. Rizzi
- Innovative Research Laboratory on Wound HealingHealth Sciences DepartmentUniversity of Eastern PiedmontNovara28100Italy
| | - B. Cravello
- Associazione Tessile e Salute (Health and Textile Association)Biella13900Italy
| | - F. Renò
- Innovative Research Laboratory on Wound HealingHealth Sciences DepartmentUniversity of Eastern PiedmontNovara28100Italy
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O'Hara T, Seddon B, McClean S, Dempsey E. TOXOR: Design and Application of an Electrochemical Toxicity Biosensor for Environmental Monitoring. ELECTROANAL 2014. [DOI: 10.1002/elan.201400433] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Boone MALM, Jemec GBE, Del Marmol V. Differentiating allergic and irritant contact dermatitis by high-definition optical coherence tomography: a pilot study. Arch Dermatol Res 2014; 307:11-22. [PMID: 25186162 PMCID: PMC4282878 DOI: 10.1007/s00403-014-1492-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 06/24/2014] [Accepted: 08/18/2014] [Indexed: 11/28/2022]
Abstract
Differentiation of allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD) is important because of different management requirements. Various non-invasive tests have been used in an attempt to improve diagnosis. In irritant dermatitis, thickening of the epidermis has been a constant finding. High-Definition Optical Coherence Tomography (HD-OCT) is a non-invasive real-time three-dimensional imaging technique with cellular resolution for which an adapted algorithmic method for pattern analysis discriminating inflammatory skin diseases has been proposed. The aim of this study was threefold. (1) To evaluate the correlation between HD-OCT features and clinical scores of allergic and irritant patch test reactions. (2) To explore the potential of HD-OCT in optimizing the visual patch test scoring. (3) To assess in vivo the cytological and 3-D micro-architectural differences in skin reaction types between doubtful positive ACD and ICD. Twenty-two volunteers were patch tested using potassium(VI)dichromate, cobalt(II)chloride, nickel(II) sulfate and palladium(II)chloride. Visual patch test scoring and HD-OCT assisted patch test scoring were performed at 48 and 96 h after patch test application according to ECDRG guidelines. Selected HD-OCT features correlated well with clinical severity scores. HD-OCT assessment improved the visual patch test scoring although not significantly. Increased epidermal thickness observed in ICD at first reading was a significant finding useful in differentiating doubtful (+?) ACD from irritant (IR) ICD reactions. In conclusion, HD-OCT might be a unique tool for in vivo non-invasive real-time three-dimensional epidermal thickness measurements helping to differentiate IR from doubtful (+?) reactions in patch testing. Selected HD-OCT features corresponded well with severity of visual scoring. These features might help to quantify the degree of inflammation in inflammatory skin conditions. HD-OCT might help in optimizing visual patch test scoring in some situations.
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Affiliation(s)
- Marc A L M Boone
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, 808 Route de Lennik, 1070, Brussels, Belgium,
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Ghosh P, Das MT, Thakur IS. Mammalian cell line-based bioassays for toxicological evaluation of landfill leachate treated by Pseudomonas sp. ISTDF1. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:8084-8094. [PMID: 24671403 DOI: 10.1007/s11356-014-2802-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 03/12/2014] [Indexed: 06/03/2023]
Abstract
Landfill leachate has become a serious environmental concern because of the presence of many hazardous compounds which even at trace levels are a threat to human health and environment. Therefore, it is important to assess the toxicity of leachate generated and discharge it conforming to the safety standards. The present work examined the efficiency of an earlier reported Pseudomonas sp. strain ISTDF1 for detoxification of leachate collected from Okhla landfill site (New Delhi, India). GC-MS analysis performed after treatment showed the removal of compounds like alpha-limonene diepoxide, brominated dioxin-2-one, Bisphenol A, nitromusk, phthalate derivative, and nitrobenzene originally found in untreated leachate. ICP-AES analysis for heavy metals also showed reduction in concentrations of Zn, Cd, Cr, Fe, Ni, and Pb bringing them within the limit of safety discharge. Methyl tetrazolium (MTT) assay for cytotoxicity, alkaline comet assay for genotoxicity, and 7-ethoxyresorufin-O-deethylase (EROD) assay for dioxin-like behavior were carried out in human hepato-carcinoma cell line HepG2 to evaluate the toxic potential of treated and untreated leachates. The bacterium reduced toxicity as shown by 2.5-fold reduction of MTT EC50 value, 7-fold reduction in Olive Tail Moment, and 2.8-fold reduction in EROD induction after 240 h of bacterial treatment.
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Affiliation(s)
- Pooja Ghosh
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India,
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Qiu F, Zhang L, Peyer KE, Casarosa M, Franco-Obregón A, Choi H, Nelson BJ. Noncytotoxic artificial bacterial flagella fabricated from biocompatible ORMOCOMP and iron coating. J Mater Chem B 2014; 2:357-362. [DOI: 10.1039/c3tb20840k] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sprenger A, Weber S, Zarai M, Engelke R, Nascimento JM, Gretzmeier C, Hilpert M, Boerries M, Has C, Busch H, Bruckner-Tuderman L, Dengjel J. Consistency of the proteome in primary human keratinocytes with respect to gender, age, and skin localization. Mol Cell Proteomics 2013; 12:2509-21. [PMID: 23722187 DOI: 10.1074/mcp.m112.025478] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Keratinocytes account for 95% of all cells of the epidermis, the stratified squamous epithelium forming the outer layer of the skin, in which a significant number of skin diseases takes root. Immortalized keratinocyte cell lines are often used as research model systems providing standardized, reproducible, and homogenous biological material. Apart from that, primary human keratinocytes are frequently used for medical studies because the skin provides an important route for drug administration and is readily accessible for biopsies. However, comparability of these cell systems is not known. Cell lines may undergo phenotypic shifts and may differ from the in vivo situation in important aspects. Primary cells, on the other hand, may vary in biological functions depending on gender and age of the donor and localization of the biopsy specimen. Here we employed metabolic labeling in combination with quantitative mass spectrometry-based proteomics to assess A431 and HaCaT cell lines for their suitability as model systems. Compared with cell lines, comprehensive profiling of the primary human keratinocyte proteome with respect to gender, age, and skin localization identified an unexpected high proteomic consistency. The data were analyzed by an improved ontology enrichment analysis workflow designed for the study of global proteomics experiments. It enables a quick, comprehensive and unbiased overview of altered biological phenomena and links experimental data to literature. We guide through our workflow, point out its advantages compared with other methods and apply it to visualize differences of cell lines compared with primary human keratinocytes.
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Affiliation(s)
- Adrian Sprenger
- Freiburg Institute for Advanced Studies, School of Life Science-LifeNet, University of Freiburg, Albertstr. 19, 79104 Freiburg, Germany
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D'Antò V, Valletta R, Amato M, Schweikl H, Simeone M, Paduano S, Rengo S, Spagnuolo G. Effect of nickel chloride on cell proliferation. Open Dent J 2012. [PMID: 23198004 PMCID: PMC3504722 DOI: 10.2174/1874210601206010177] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective: Metal alloys used in dentistry and in other biomedical fields may release nickel ions in the oral environment. The release of nickel might influence the normal biological and physiological processes, including tissue wound healing, cell growth and proliferation. The aim of this study was to evaluate in vitro the effects of nickel ions on cell cycle, viability and proliferation. Materials and Methods: Human osteosarcoma cells (U2OS) and human keratinocytes (HaCat) were exposed to different nickel chloride (NiCl2) concentrations (0 - 5mM) for various periods exposure. The viability of cultured cells was estimated by flow cytometry using Annexin V-FITC and Propidium Iodide (PI). Cell proliferation was evaluated by using carboxyfluorescein diacetate succinimidyl ester (CFDA-SE) and flow cytometry. Finally, the effects of NiCl2 on cell cycle were assessed and quantified by flow cytometry. Statistical analysis was performed by means of ANOVA followed by Tukey’s test. Results: NiCl2 induced a dose and time dependent decrease in cell viability. After 24h, 1mM NiCl2 caused a similar and significant reduction of viability in U2OS and HaCat cells, while higher NiCl2 concentrations and longer exposure times showed a reduced cytotoxic effect in HaCat as compared to U2OS cells. Exposure to NiCl2 caused a dose- and time-dependent inhibition of cell proliferation in both cell lines tested, with a prominent effect on U2OS cells. Furthermore, both cell lines exposed to NiCl2 exhibited significant changes in cell cycle distribution after 24h exposure 2mM NiCl2, as compared to untreated cells (p<0.05). Conclusion: Our results indicate that release of nickel ions may affect cell proliferation. The inhibition of cell growth by NiCl2 is mediated by both cell cycle arrest and by induction of cell death.
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Affiliation(s)
- Vincenzo D'Antò
- Department of Oral and Maxillofacial Sciences, University of Naples "Federico II", Napoli, Italy
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Shakir L, Ejaz S, Ashraf M, Qureshi NA, Anjum AA, Iltaf I, Javeed A. Ecotoxicological risks associated with tannery effluent wastewater. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2012; 34:180-191. [PMID: 22522427 DOI: 10.1016/j.etap.2012.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 02/08/2012] [Accepted: 03/03/2012] [Indexed: 05/31/2023]
Abstract
The problem of water pollution acquires greater relevance in the context of a developing agrarian economy like Pakistan. Even though, the leather industry is a leading economic sector in Pakistan, there is an increasing environmental concern regarding tanneries because they produce large amounts of potentially toxic wastewater containing both trivalent and hexavalent chromium, which are equally hazardous for human population, aquaculture and agricultural activities in the area. Therefore, we defined the scope of the present study as to employ different bioassays to determine the eco-toxic potential of tannery effluent wastewater (TW) and its chromium based components, i.e., potassium dichromate (K(2)Cr(2)O(7)) and chromium sulfate Cr(2)(SO(4))(3). Particle-induced X-ray emission (PIXE) analysis of TW was carried out to determine the concentration of chromium in TW and then equal concentrations of hexavalent (K(2)Cr(2)O(7)) and trivalent chromium Cr(2)(SO(4))(3) were obtained for this study. Cytotoxicity assay, artemia bioassay and phytotoxicity assay was utilized to investigate the eco-toxicological potential of different concentrations of TW, K(2)Cr(2)O(7) and Cr(2)(SO(4))(3). All the dilutions of TW, K(2)Cr(2)O(7) and Cr(2)(SO(4))(3) presented concentration dependent cytotoxic effects in these assays. The data clearly represents that among all three tested materials, different dilutions of K(2)Cr(2)O(7) caused significantly more damage (P<0.001) to vero cell, brine shrimp and germination of maize seeds. Interestingly, the overall toxicity effects of TW treated groups were subsequent to K(2)Cr(2)O(7) treated group. Based on biological evidences presented in this article, it is concluded that hexavalent chromium (K(2)Cr(2)O(7)) and TW has got significant eco-damaging potential clearly elaborating that environmental burden in district Kasur is numerous and high levels of chromium is posing a considerable risk to the human population, aquaculture and agricultural industry that can obliterate ecosystem surrounding the tanneries.
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Affiliation(s)
- Lubna Shakir
- Angiogenesis and Toxicology Research Laboratory, Department of Pharmacology & Toxicology, University of Veterinary and Animal Sciences, Lahore, Pakistan; School of Pharmacy, Hajvery University, Lahore, Pakistan
| | - Sohail Ejaz
- Department of Clinical Neurosciences, Neurology Unit, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
| | - Muhammad Ashraf
- Angiogenesis and Toxicology Research Laboratory, Department of Pharmacology & Toxicology, University of Veterinary and Animal Sciences, Lahore, Pakistan.
| | - Naureen Aziz Qureshi
- Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan; Department of Fisheries and Aquaculture, Government College University, Faisalabad, Pakistan
| | - Aftab Ahmad Anjum
- Department of Microbiology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Imran Iltaf
- Quality Operations Laboratory, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Aqeel Javeed
- Angiogenesis and Toxicology Research Laboratory, Department of Pharmacology & Toxicology, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Perfetto B, Stellavato A, Melito A, De Gregorio V, Cammarota M, Giuliano M. A time-lapse approach to examine chromium and nickel effects on wound healing in vitro. J Immunotoxicol 2012; 9:392-400. [PMID: 22632163 DOI: 10.3109/1547691x.2012.682662] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Chromium and nickel cause allergic contact dermatitis, a common biological skin response to sensitizing agents. This study used a conventional in vitro wounding model to study the impact of sensitizing agents on the innate immune response of human keratinocytes. Experiments were designed to evaluate the involvement of specific Toll-like receptors and metalloproteinases as effectors molecules downstream, at a molecular level. Further, keratinocytes were co-cultured with monocytes (THP-1 cells) to reproduce an inductive stimulus on monocytes made by metals. Human keratinocytes (HaCat) were grown on plates covered with collagen type I, chemically treated, and then mechanically injured with a sterile pipette tip. Restoration of the monolayer integrity was monitored by time-lapse video microscopy. Effector gene expression was evaluated by real-time PCR. The presence of chromium significantly dropped the rate of wound closure, while nickel-induced hyper-proliferation ended in an acceleration of the healing process, an event that does not occur in vivo. This latter outcome led to considering nickel as an unsuitable example for use in the experimental model. Focusing solely on the chromium aspect of this study, RNA profiles of selected molecular markers were generated to ascertain if the detrimental stimulus from chromium was eliminated or persisted both in keratinocytes alone and/or during co-cultures of keratinocytes and monocytes. Monocytes accelerated the process of wound repair. This in vitro experimental model highlighted the involvement of innate immunity in response to chromium and might be useful for test molecules of therapeutic interest for the treatment of skin lesions. However, the experience with nickel reveals that there are limitations to the utility of this wound model system after all.
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Yang C, Ling H, Zhang M, Yang Z, Wang X, Zeng F, Wang C, Feng J. Oxidative stress mediates chemical hypoxia-induced injury and inflammation by activating NF-κb-COX-2 pathway in HaCaT cells. Mol Cells 2011; 31:531-8. [PMID: 21533553 PMCID: PMC3887613 DOI: 10.1007/s10059-011-1025-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 03/21/2011] [Accepted: 03/22/2011] [Indexed: 12/17/2022] Open
Abstract
Hypoxia of skin is an important physiopathological process in many diseases, such as pressure ulcer, diabetic ulcer, and varicose ulcer. Although cellular injury and inflammation have been involved in hypoxia-induced dermatic injury, the underlying mechanisms remain largely unknown. This study was conducted to investigate the effects of cobalt chloride (CoCl(2)), a hypoxia-mimicking agent, on human skin keratinocytes (HaCaT cells) and to explore the possible molecular mechanisms. Exposure of HaCaT cells to CoCl(2) reduced cell viability and caused overproduction of reactive oxygen species (ROS) and oversecretion of interleukin-6 (IL-6) and interleukin-8 (IL-8). Importantly, CoCl(2) exposure elicited overexpression of cyclooxygenase-2 (COX-2) and phosphorylation of nuclear factor-kappa B (NF-κB) p65 subunit. Inhibition of COX-2 by NS-398, a selective inhibitor of COX-2, significantly repressed the cytotoxicity, as well as secretion of IL-6 and IL-8 induced by CoCl(2). Inhibition of NF-κB by PDTC (a selective inhibitor of NF-κB) or genetic silencing of p65 by RNAi (Si-p65), attenuated not only the cytotoxicity and secretion of IL-6 and IL-8, but also overexpression of COX-2 in CoCl(2)-treated HaCaT cells. Neutralizing anti-IL-6 or anti-IL-8 antibody statistically alleviated CoCl(2)-induced cytotoxicity in HaCaT cells. N-acetyl-L-cysteine (NAC), a well characterized ROS scavenger, obviously suppressed CoCl(2)-induced cytotoxicity in HaCaT cells, as well as secretion of IL-6 and IL-8. Additionally, NAC also repressed overexpression of COX-2 and phosphorylation of NF- B κ p65 subunit induced by CoCl(2) in HaCaT cells. In conclusion, our results demonstrated that oxidative stress mediates chemical hypoxia-induced injury and inflammatory response through activation of NF-κB-COX-2 pathway in HaCaT cells.
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Affiliation(s)
| | - Hongzhong Ling
- Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong, People’s Republic of China
| | - Meifen Zhang
- School of Nursing, Sun Yat-sen University, Guangdong, People’s Republic of China
| | | | | | - Fanqin Zeng
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangdong, People’s Republic of China
| | - Chuhuai Wang
- Department of Rehabilitation, The First Affiliated Hospital, Sun Yat-sen University, Guangdong, People’s Republic of China
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Rudzok S, Krejči S, Graebsch C, Herbarth O, Mueller A, Bauer M. Toxicity profiles of four metals and 17 xenobiotics in the human hepatoma cell line HepG2 and the protozoa Tetrahymena pyriformis--a comparison. ENVIRONMENTAL TOXICOLOGY 2011; 26:171-186. [PMID: 19790250 DOI: 10.1002/tox.20541] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We performed an interspecies comparison for the human hepatoma cell line HepG2 and the eukaryotic single cell organism Tetrahymena pyriformis (T. pyriformis) for 17 xenobiotics with diverse structures and four metals. The cytotoxicity was assessed by four different cell viability assays (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide reduction (MTT), neutral red uptake (NRU), resazurin dye (AlamarBlue), 5-carboxyfluorescein diacetate acetoxymethyl ester (CFDA-AM)) for the HepG2 and by cell count and MTT for T. pyriformis. For HepG2 cells, the results revealed interassay variations depending on the compound. The highest assay conformity was found for the metal Hg(2+) and the fungicide prochloraz. The AlamarBlue assay was the most sensitive assay according to low-effect concentrations. By contrast, the NRU assay was comprised of more frequent whole concentration response relationships and was more susceptible to EC(50). For T. pyriformis the EC(50) values of the two applied assays displayed a high conformity (R(2) = 0.97). Comparing the EC(50) values obtained by the MTT assay for the two cell models, a direct correlation was absent for the xenobiotics and only present for the metals (Cd(2+), Cu(2+), and Ni(2+)). Moreover, the protozoa T. pyriformis displayed a 20 times higher sensitivity than the cell line. The highest interspecies difference of three log degrees was obtained for the polycyclic aromatic hydrocarbon fluoranthene. In addition, a correlation of the EC(50) values and octanol-water partition coefficient (log K(OW)) of the xenobiotics was performed. No correlation was found for HepG2, and a weak one for T. pyriformis. Interestingly, the interspecies difference of logarithmized EC(50) correlated positive with the log K(OW) (R(2) = 0.65). In conclusion, to obtain reliable evidence for human cytotoxicity, more than one viability/cytotoxicity assay had to be applied for cell lines. Second, the human hepatoma cell line was less affected by the organic compounds than the eukaryotic single-cell organism and was also less dependent on the log K(OW) of the xenobiotic.
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Affiliation(s)
- Susanne Rudzok
- Helmholtz Centre for Environmental Research-UFZ, Division Health Research, Leipzig, Germany
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Hazane-Puch F, Benaraba R, Valenti K, Osman M, Laporte F, Favier A, Anderson RA, Roussel AM, Hininger-Favier I. Chromium III histidinate exposure modulates gene expression in HaCaT human keratinocytes exposed to oxidative stress. Biol Trace Elem Res 2010; 137:23-39. [PMID: 19902159 DOI: 10.1007/s12011-009-8557-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Accepted: 10/21/2009] [Indexed: 11/25/2022]
Abstract
While the toxicity of hexavalent chromium is well established, trivalent chromium is an essential nutrient involved in insulin and glucose homeostasis. To study the antioxidant effects of Cr(III)His, cDNA arrays were used to investigate the modulation of gene expression by trivalent chromium histidinate (Cr(III)His) in HaCaT human keratinocytes submitted to hydrogen peroxide (H2O2). Array was composed by a set of 81 expressed sequences tags (ESTs) essentially represented by antioxidant and DNA repair genes. HaCaT were preincubated for 24 h with 50 microM Cr(III)His and were treated with 50 muM H2O2. Total RNAs were isolated immediately or 6 h after the stress. In Cr(III)His preincubated cells, transcripts related to antioxidant family were upregulated (glutathione synthetase, heme oxygenase 2, peroxiredoxin 4). In Cr(III)His preincubated cells and exposed to H2O2, increased expressions of polymerase delta 2 and antioxidant transcripts were observed. Biochemical methods performed in parallel to measure oxidative stress in cells showed that Cr(III)His supplementation before H2O2 stress protected HaCaT from thiol groups decrease and thiobarbituric acid reactive substances increase. In summary, these results give evidence of antioxidant gene expression and antioxidant protection in HaCaT preincubated with Cr(III)His and help to explain the lack of toxicity reported for Cr(III)His.
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Affiliation(s)
- Florence Hazane-Puch
- Département de Biologie Intégrée, Biologie Nutritionnelle, Centre Hospitalier Universitaire, BP 217, 38043, Grenoble Cedex 09, France
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Nickel modifies the cytotoxicity of hexavalent chromium in human dermal fibroblasts. Toxicol Lett 2010; 197:143-50. [DOI: 10.1016/j.toxlet.2010.05.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 05/12/2010] [Accepted: 05/14/2010] [Indexed: 11/19/2022]
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Costa AN, Moreno V, Prieto MJ, Urbano AM, Alpoim MC. Induction of morphological changes in BEAS-2B human bronchial epithelial cells following chronic sub-cytotoxic and mildly cytotoxic hexavalent chromium exposures. Mol Carcinog 2010; 49:582-91. [PMID: 20336777 DOI: 10.1002/mc.20624] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Certain hexavalent chromium (Cr(VI)) compounds are well established occupational respiratory tract carcinogens. However, despite extensive studies, the cellular and molecular mechanisms underlying Cr(VI)-induced lung cancer remain poorly understood. In fact, the models used were often suboptimal and yielded conflicting results that were heavily dependent upon the system and experimental conditions employed. Here, we investigated the effects of chronic subcytotoxic and mildly cytotoxic (0.1-2 microM) Cr(VI) exposures on cultures of human bronchial epithelial cells, the main targets of Cr(VI) carcinogenicity. Our studies with the nontumorigenic BEAS-2B cell line suggest that relatively short exposures (h) to sublethal Cr(VI) doses (0.1-1 microM) may render these cells less sensitive to contact inhibition. We have also observed a reduced sensitivity to Cr(VI)-induced apoptosis shortly after the beginning of exposure to a mildly cytotoxic Cr(VI) dose (2 microM). Further studies are needed to determine whether these two phenotypes are involved in the Cr(VI)-induced carcinogenic process. Additionally, evidence gathered in this study strongly points to a Cr(VI) interference with cell adhesion to the substratum and with cell-cell interactions. Finally, by chronically exposing BEAS-2B cells to mildly cytotoxic Cr(VI) doses (1 and 2 microM), we were able to induce changes in cell morphology and pattern of growth characteristic of an early phase of pre-malignant progression.
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Affiliation(s)
- André N Costa
- Departament de Química Inorgánica, Facultad de Química, y Departament de Microbiologia, Facultad de Biologia, Universitat de Barcelona
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Heavy metals chromium and neodymium reduced phosphorylation level of heat shock protein 27 in human keratinocytes. Toxicol In Vitro 2010; 24:1098-104. [DOI: 10.1016/j.tiv.2010.03.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2010] [Revised: 02/24/2010] [Accepted: 03/17/2010] [Indexed: 12/13/2022]
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Cobalt toxicity: Chemical and radiological combined effects on HaCaT keratinocyte cell line. Toxicol In Vitro 2010; 24:92-8. [DOI: 10.1016/j.tiv.2009.08.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Revised: 08/27/2009] [Accepted: 08/28/2009] [Indexed: 11/18/2022]
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Busch W, Kühnel D, Schirmer K, Scholz S. Tungsten carbide cobalt nanoparticles exert hypoxia-like effects on the gene expression level in human keratinocytes. BMC Genomics 2010; 11:65. [PMID: 20105288 PMCID: PMC2824725 DOI: 10.1186/1471-2164-11-65] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Accepted: 01/27/2010] [Indexed: 01/07/2023] Open
Abstract
Background Tungsten carbide (WC) and tungsten carbide cobalt (WC-Co) nanoparticles are of occupational health relevance because of the increasing usage in hard metal industries. Earlier studies showed an enhanced toxic potential for WC-Co compared to WC or cobalt ions alone. Therefore, we investigated the impact of these particles, compared to cobalt ions applied as CoCl2, on the global gene expression level in human keratinocytes (HaCaT) in vitro. Results WC nanoparticles exerted very little effects on the transcriptomic level after 3 hours and 3 days of exposure. In contrast, WC-Co nanoparticles caused significant transcriptional changes that were similar to those provoked by CoCl2. However, CoCl2 exerted even more pronounced changes in the transcription patterns. Gene set enrichment analyses revealed that the differentially expressed genes were related to hypoxia response, carbohydrate metabolism, endocrine pathways, and targets of several transcription factors. The role of the transcription factor HIF1 (hypoxia inducible factor 1) is particularly highlighted and aspects of downstream events as well as the role of other transcription factors related to cobalt toxicity are considered. Conclusions This study provides extensive data useful for the understanding of nanoparticle and cobalt toxicity. It shows that WC nanoparticles caused low transcriptional responses while WC-Co nanoparticles are able to exert responses similar to that of free cobalt ions, particularly the induction of hypoxia-like effects via interactions with HIF1α in human keratinocytes. However, the enhanced toxicity of WC-Co particles compared to CoCl2 could not be explained by differences in gene transcription.
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Affiliation(s)
- Wibke Busch
- UFZ - Helmholtz-Centre for Environmental Research Leipzig, Department of Bioanalytical Ecotoxicology, 04318 Leipzig, Germany.
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Cobalt distribution in keratinocyte cells indicates nuclear and perinuclear accumulation and interaction with magnesium and zinc homeostasis. Toxicol Lett 2009; 188:26-32. [PMID: 19433266 DOI: 10.1016/j.toxlet.2009.02.024] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Revised: 01/26/2009] [Accepted: 02/28/2009] [Indexed: 11/20/2022]
Abstract
Cobalt is known to be toxic at high concentration, to induce contact dermatosis, and occupational radiation skin damage because of its use in nuclear industry. We investigated the intracellular distribution of cobalt in HaCaT human keratinocytes as a model of skin cells, and its interaction with endogenous trace elements. Direct micro-chemical imaging based on ion beam techniques was applied to determine the quantitative distribution of cobalt in HaCaT cells. In addition, synchrotron radiation X-ray fluorescence microanalysis in tomography mode was performed, for the first time on a single cell, to determine the 3D intracellular distribution of cobalt. Results obtained with these micro-chemical techniques were compared to a more classical method based on cellular fractionation followed by inductively coupled plasma atomic emission spectrometry (ICP-AES) measurements. Cobalt was found to accumulate in the cell nucleus and in perinuclear structures indicating the possible direct interaction with genomic DNA, and nuclear proteins. The perinuclear accumulation in the cytosol suggests that cobalt could be stored in the endoplasmic reticulum or the Golgi apparatus. The multi-elemental analysis revealed that cobalt exposure significantly decreased magnesium and zinc content, with a likely competition of cobalt for magnesium and zinc binding sites in proteins. Overall, these data suggest a multiform toxicity of cobalt related to interactions with genomic DNA and nuclear proteins, and to the alteration of zinc and magnesium homeostasis.
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Révész C, Forgács Z, Lázár P, Mátyás S, Rajczy K, Krizsa F, Bernard A, Gáti I. Effect of Nickel (Ni2+) on Primary Human Ovarian Granulosa Cells In Vitro. Toxicol Mech Methods 2008; 14:287-92. [DOI: 10.1080/15376520490434566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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