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Almonti V, Vernazza S, Mirata S, Tirendi S, Passalacqua M, Gualtieri AF, Di Giuseppe D, Scarfì S, Bassi AM. Toxicity and inflammatory potential of mineral fibres: The contribute of released soluble metals versus cell contact direct effects. J Appl Toxicol 2024. [PMID: 38605572 DOI: 10.1002/jat.4610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/05/2024] [Accepted: 03/23/2024] [Indexed: 04/13/2024]
Abstract
Asbestos fibres have been considered an environmental hazard for decades. However, little is known about the attempts of circulating immune cells to counteract their toxicity. We addressed the early effects of fibre-released soluble factors (i.e. heavy metals) in naïve immune cells, circulating immediately below the alveolar/endothelial cell layer. By comparison, the direct fibre effects on endotheliocytes were also studied since these cells are known to sustain inflammatory processes. The three mineral fibres analysed showed that mainly chrysotile (CHR) and erionite (ERI) were able to release toxic metals in extracellular media respect to crocidolite (CRO), during the first 24 h. Nevertheless, all three fibres were able to induce oxidative stress and genotoxic damage in indirectly challenged naïve THP-1 monocytes (separated by a membrane). Conversely, only CHR-released metal ions induced apoptosis, NF-κB activation, cytokines and CD163 gene overexpression, indicating a differentiation towards the M0 macrophage phenotype. On the other hand, all three mineral fibres in direct contact with HECV endothelial cells showed cytotoxic, genotoxic and apoptotic effects, cytokines and ICAM-I overexpression, indicating the ability of these cells to promote an inflammatory environment in the lung independently from the type of inhaled fibre. Our study highlights the different cellular responses to mineral fibres resulting from both the nature of the cells and their function, but also from the chemical-physical characteristics of the fibres. In conclusion, CHR represented the main pro-inflammatory trigger, able to recruit and activate circulating naïve monocytes, through its released metals, already in the first 24 h after inhalation.
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Affiliation(s)
- Vanessa Almonti
- Department Experimental Medicine, University of Genova, Genova, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
| | - Stefania Vernazza
- Department Experimental Medicine, University of Genova, Genova, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
| | - Serena Mirata
- Department Experimental Medicine, University of Genova, Genova, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
| | - Sara Tirendi
- Department Experimental Medicine, University of Genova, Genova, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
| | - Mario Passalacqua
- Department Experimental Medicine, University of Genova, Genova, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
| | | | - Dario Di Giuseppe
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Sonia Scarfì
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
- Department Earth, Environment and Life Sciences, University of Genova, Genova, Italy
| | - Anna Maria Bassi
- Department Experimental Medicine, University of Genova, Genova, Italy
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), Pisa, Italy
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2
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Leinardi R, Pavan C, Yedavally H, Tomatis M, Salvati A, Turci F. Cytotoxicity of fractured quartz on THP-1 human macrophages: role of the membranolytic activity of quartz and phagolysosome destabilization. Arch Toxicol 2020; 94:2981-2995. [PMID: 32592078 PMCID: PMC7415752 DOI: 10.1007/s00204-020-02819-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/18/2020] [Indexed: 12/13/2022]
Abstract
The pathogenicity of quartz involves lysosomal alteration in alveolar macrophages. This event triggers the inflammatory cascade that may lead to quartz-induced silicosis and eventually lung cancer. Experiments with synthetic quartz crystals recently showed that quartz dust is cytotoxic only when the atomic order of the crystal surfaces is upset by fracturing. Cytotoxicity was not observed when quartz had as-grown, unfractured surfaces. These findings raised questions on the potential impact of quartz surfaces on the phagolysosomal membrane upon internalization of the particles by macrophages. To gain insights on the surface-induced cytotoxicity of quartz, as-grown and fractured quartz particles in respirable size differing only in surface properties related to fracturing were prepared and physico-chemically characterized. Synthetic quartz particles were compared to a well-known toxic commercial quartz dust. Membranolysis was assessed on red blood cells, and quartz uptake, cell viability and effects on lysosomes were assessed on human PMA-differentiated THP-1 macrophages, upon exposing cells to increasing concentrations of quartz particles (10–250 µg/ml). All quartz samples were internalized, but only fractured quartz elicited cytotoxicity and phagolysosomal alterations. These effects were blunted when uptake was suppressed by incubating macrophages with particles at 4 °C. Membranolysis, but not cytotoxicity, was quenched when fractured quartz was incubated with cells in protein-supplemented medium. We propose that, upon internalization, the phagolysosome environment rapidly removes serum proteins from the quartz surface, restoring quartz membranolytic activity in the phagolysosomes. Our findings indicate that the cytotoxic activity of fractured quartz is elicited by promoting phagolysosomal membrane alteration.
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Affiliation(s)
- Riccardo Leinardi
- "G. Scansetti" Interdepartmental Center for Studies On Asbestos and Other Toxic Particulates, Department of Chemistry, University of Torino, Via P. Giuria 7, 10125, Turin, Italy
| | - Cristina Pavan
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Université Catholique de Louvain, Avenue Hippocrate 57, 1200, Brussels, Belgium
| | - Harita Yedavally
- Department of Nanomedicine & Drug Targeting, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, Groningen, 9713 AV, The Netherlands
| | - Maura Tomatis
- "G. Scansetti" Interdepartmental Center for Studies On Asbestos and Other Toxic Particulates, Department of Chemistry, University of Torino, Via P. Giuria 7, 10125, Turin, Italy
| | - Anna Salvati
- Department of Nanomedicine & Drug Targeting, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, Groningen, 9713 AV, The Netherlands.
| | - Francesco Turci
- "G. Scansetti" Interdepartmental Center for Studies On Asbestos and Other Toxic Particulates, Department of Chemistry, University of Torino, Via P. Giuria 7, 10125, Turin, Italy.
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3
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Pavan C, Fubini B. Unveiling the Variability of “Quartz Hazard” in Light of Recent Toxicological Findings. Chem Res Toxicol 2016; 30:469-485. [DOI: 10.1021/acs.chemrestox.6b00409] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cristina Pavan
- Department of Chemistry, University of Torino, Via P. Giuria 7, 10125 Turin, Italy
- “G. Scansetti” Interdepartmental
Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 9, 10125 Turin, Italy
| | - Bice Fubini
- Department of Chemistry, University of Torino, Via P. Giuria 7, 10125 Turin, Italy
- “G. Scansetti” Interdepartmental
Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 9, 10125 Turin, Italy
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4
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Giovine M, Pozzolini M, Fenoglio I, Scarfi S, Ghiazza M, Benatti U, Fubini B. Crystalline silica incubated in ascorbic acid acquires a higher cytotoxic potential. Toxicol Ind Health 2016; 18:249-55. [PMID: 14653313 DOI: 10.1191/0748233702th148oa] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Quartz incubated in an aqueous solution of ascorbic acid is partially dissolved and the potential to generate hydroxyl radicals from hydrogen peroxide is enhanced. In order to investigate whether the surface activation triggered by the treatment with ascorbic acid would also involve an enhancement in cell toxicity, a murine macrophage cell line (RAW 264.7) was exposed to untreated and ascorbic acid-treated quartz. Ascorbic acid pretreated quartz was more toxic than untreated quartz and all cells died within 24 hours after exposure. Tetrandrine (a Chinese drug employed to retard or reverse fibrotic lesions of silicosis in humans) partially reduced cell toxicity generated by ascorbic acid pretreated quartz.
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Affiliation(s)
- Marco Giovine
- CNR - Direzione Progetto Finalizzato Biotecnologie, Via Leon Battista Alberti, 4, 16132 Genova, Italy
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5
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Thomassen LCJ, Napierska D, Dinsdale D, Lievens N, Jammaer J, Lison D, Kirschhock CEA, Hoet PH, Martens JA. Investigation of the cytotoxicity of nanozeolites A and Y. Nanotoxicology 2011; 6:472-85. [PMID: 21950480 DOI: 10.3109/17435390.2011.587901] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Nanosized zeolite particles are important materials for many applications in the field of nanotechnology. The possible adverse effects of these nanomaterials on human health have been scarcely investigated and remain largely unknown. This study reports the synthesis of nanozeolites Y and A with particle sizes of 25-100 nm and adequate colloidal stability for in vitro cytotoxicity experiments. The cytotoxic response of macrophages, epithelial and endothelial cells to these nanocrystals was assessed by determining mitochondrial activity (MTT assay) and cell membrane integrity (LDH leakage assay). After 24 h of exposure, no significant cytotoxic activity was detected for nanozeolite doses up to 500 μg/ml. The addition of fetal calf serum to the cell culture medium during exposure did not significantly change this low response. The nanozeolites showed low toxicity compared with monodisperse amorphous silica nanoparticles of similar size (60 nm). These results may contribute to the application of safe nanozeolites for purposes such as medical imaging, sensing materials, low-k films and molecular separation processes.
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Affiliation(s)
- Leen C J Thomassen
- Center for Surface Chemistry & Catalysis, Katholieke Universiteit, Leuven, Belgium
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Al Shamsi M, Al Samri MT, Al-Salam S, Conca W, Shaban S, Benedict S, Tariq S, Biradar AV, Penefsky HS, Asefa T, Souid AK. Biocompatibility of calcined mesoporous silica particles with cellular bioenergetics in murine tissues. Chem Res Toxicol 2010; 23:1796-805. [PMID: 20961102 DOI: 10.1021/tx100245j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel in vitro system was developed to investigate the effects of two forms of calcined mesoporous silica particles (MCM41-cal and SBA15-cal) on cellular respiration of mouse tissues. O(2) consumption by lung, liver, kidney, spleen, and pancreatic tissues was unaffected by exposure to 200 μg/mL MCM41-cal or SBA15-cal for several hours. Normal tissue histology was confirmed by light microscopy. Intracellular accumulation of the particles in the studied tissues was evident by electron microscopy. The results show reasonable in vitro biocompatibility of the mesoporous silicas with murine tissue bioenergetics.
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Affiliation(s)
- Mariam Al Shamsi
- Department of Immunology, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
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Murray DK. The characterization of phospholipid functional group probe species on respirable silicon-containing dusts by solid-state 13C and 31P nuclear magnetic resonance spectroscopy. APPLIED SPECTROSCOPY 2010; 64:328-336. [PMID: 20223070 DOI: 10.1366/000370210790918427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Solid-state nuclear magnetic resonance (NMR) spectroscopic studies are reported for the interactions of probe molecules with respirable silicon-containing dusts as experimental evidence complementing computational studies reported by Snyder and Madura recently in J. Phys. Chem. B 112, 7095 (2008). The selected probe molecules represent the individual functional groups of a model lung surfactant dipalmitoylphosphatidyl choline (DPPC) deposited on a respirable silica and kaolin from water solution. (13)C and (31)P solid-state NMR spectroscopies were employed to detect chemical shift, line width, and chemical shift anisotropy, providing experimental evidence of mobility and relaxation changes describing the site and orientation of surface-associated species. NMR results confirm that only the phosphate and adjacent carbons are immobilized by surface hydroxyls on kaolin, while these and the carbons of the cationic head group are likewise immobilized by surface silanols on Miu-U-Sil 5. The phosphates in phosphoryl- and phosphatidyl-cholines were the primary interaction sites, with additional weak coordination with the trimethylammonium cation species. Covalent Al-O-P formation is not likely a factor in in vivo or in vitro toxicity mechanisms of respirable silicon-containing materials, but is rather the result of dehydration or demethoxylation reactions occurring over time or during heating or reduced pressure used in preparing materials for NMR spectroscopic study. Hydration is a critical factor in the formation and preparation for spectroscopic observation of coated dusts. Care must be taken to ensure that products formed and studied correspond to species formed in vivo under suitable concentration and hydration conditions.
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Affiliation(s)
- David K Murray
- National Institute for Occupational Safety and Health, Health Effects Laboratory Division, 1095 Willowdale Road, MS/3030, Morgantown, West Virginia 26505, USA.
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Ghiazza M, Polimeni M, Fenoglio I, Gazzano E, Ghigo D, Fubini B. Does Vitreous Silica Contradict the Toxicity of the Crystalline Silica Paradigm? Chem Res Toxicol 2010; 23:620-9. [DOI: 10.1021/tx900369x] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mara Ghiazza
- Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates and Department of Chemistry IFM and Interdipartmental Centre for Nanostructured Interfaces and Surfaces, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy, and Department of Genetics, Biology and Biochemistry, Università degli Studi di Torino, Via Santena 5/bis, 10126 Torino, Italy
| | - Manuela Polimeni
- Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates and Department of Chemistry IFM and Interdipartmental Centre for Nanostructured Interfaces and Surfaces, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy, and Department of Genetics, Biology and Biochemistry, Università degli Studi di Torino, Via Santena 5/bis, 10126 Torino, Italy
| | - Ivana Fenoglio
- Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates and Department of Chemistry IFM and Interdipartmental Centre for Nanostructured Interfaces and Surfaces, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy, and Department of Genetics, Biology and Biochemistry, Università degli Studi di Torino, Via Santena 5/bis, 10126 Torino, Italy
| | - Elena Gazzano
- Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates and Department of Chemistry IFM and Interdipartmental Centre for Nanostructured Interfaces and Surfaces, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy, and Department of Genetics, Biology and Biochemistry, Università degli Studi di Torino, Via Santena 5/bis, 10126 Torino, Italy
| | - Dario Ghigo
- Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates and Department of Chemistry IFM and Interdipartmental Centre for Nanostructured Interfaces and Surfaces, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy, and Department of Genetics, Biology and Biochemistry, Università degli Studi di Torino, Via Santena 5/bis, 10126 Torino, Italy
| | - Bice Fubini
- Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates and Department of Chemistry IFM and Interdipartmental Centre for Nanostructured Interfaces and Surfaces, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy, and Department of Genetics, Biology and Biochemistry, Università degli Studi di Torino, Via Santena 5/bis, 10126 Torino, Italy
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9
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Di Renzo F, Fajula F. Introduction to molecular sieves: trends of evolution of the zeolite community. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0167-2991(05)80003-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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10
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Fubini B, Fenoglio I, Ceschino R, Ghiazza M, Martra G, Tomatis M, Borm P, Schins R, Bruch J. Relationship between the state of the surface of four commercial quartz flours and their biological activity in vitro and in vivo. Int J Hyg Environ Health 2004; 207:89-104. [PMID: 15031952 DOI: 10.1078/1438-4639-00277] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Four commercial quartz dusts (flours), two inflammogenic in vivo and activating macrophages in vitro (Qz 2/1-c and Qz 3/1-c) and two mostly inert (Qz 5/1-c and Qz 11/1-c), have been compared regarding their surface properties, in order to detect chemical differences which may account for their different biological behaviour. The following features have been examined: 1) extent of the amorphous fraction (heat associated alpha<-->beta transition of quartz) and its solubility in HF; 2) potential to cleave a carbon-hydrogen bond with consequent generation of carbon centred radicals (spin trapping technique, EPR); 3) evolution of surface functionalities upon heating (FTIR spectroscopy); 4) mechanisms of adsorption of water on dusts outgassed at 150 degrees and at 800 degrees C (adsorption calorimetry). HCl treated samples have also been examined. The two "less toxic" quartzes are more resistant to HF attack, coordinate irreversibly H2O molecules and exhibit strong adsorption sites, which are absent in the other two and in a very pure quartz dust. Conversely all samples show the same potential to release free radicals. The different behaviour of the two sets of dust is consistent with a different level of impurities, namely aluminium ex kaolin, carbon and alkaline ions. The less inflammogenic quartzes appear to be covered by aluminium ions (and possibly iron) which strongly holds molecular water or carbonates, thus reducing the silanol patches to a large extent and changing the surface properties of the particles. We hypothesize that cellular response, and particularly macrophage activation and death, is mediated by strong interactions between silanol patches and some cell membrane components, but inhibited when the surface of the particle is modified by the presence of aluminium ions, surface carbonates and other metal contaminants. This hypothesis suggests that grinding procedures with little appropriate additives, e.g. kaolin, alumina, can reduce the biological activity of quartz dusts.
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Affiliation(s)
- Bice Fubini
- Dipartimento di Chimica I. F. M., Interdipartimental Center G. Scansetti for Studies on Asbestos and other Toxic Particulates, Università di Torino, Via P. Giuria 7, I-10125-Torino, Italy.
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11
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Schins RPF, Duffin R, Höhr D, Knaapen AM, Shi T, Weishaupt C, Stone V, Donaldson K, Borm PJA. Surface modification of quartz inhibits toxicity, particle uptake, and oxidative DNA damage in human lung epithelial cells. Chem Res Toxicol 2002; 15:1166-73. [PMID: 12230410 DOI: 10.1021/tx025558u] [Citation(s) in RCA: 154] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Quartz (crystalline silica) is not consistently carcinogenic across different industries where similar quartz exposure occurs. In addition, there are reports that surface modification of quartz affects its cytotoxicity, inflammogenicity, and fibrogenicity. Taken together, these data suggest that the carcinogenicity of quartz is also related to particle surface characteristics, and so we determined the genotoxic effects of DQ12 quartz particles versus DQ12 whose surface was modified by treating with either aluminum lactate or polyvinylpyridine-N-oxide (PVNO). The different particle preparations were characterized for hydroxyl-radical generation using electron spin resonance (ESR). DNA damage was determined by immunocytochemical analysis of 8-hydroxydeoxyguanosine (8-OHdG) and the alkaline comet-assay using A549 human lung epithelial cells. Cytotoxicity was measured using the LDH- and MTT-assays, and particle uptake by the A549 cells was quantified by light microscopy, using digital light imaging evaluation of 800 nm sections. The ability of quartz to generate hydroxyl-radicals in the presence of hydrogen peroxide was markedly reduced upon surface modification with aluminum lactate or PVNO. DNA strand breakage and 8-OHdG formation, as produced by quartz at nontoxic concentrations, could be completely prevented by both coating materials. Particle uptake into A549 cells appeared to be significantly inhibited by the PVNO-coating, and to a lesser extent by the aluminum-lactate coating. Our data demonstrate that respirable quartz particles induce oxidative DNA damage in human lung epithelial cells and indicates that surface properties of the quartz as well as particle uptake by these target cells are important in the cytotoxic and the genotoxic effects of quartz in vitro.
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Affiliation(s)
- Roel P F Schins
- Institut für Umweltmedizinische Forschung an der Heinrich-Heine-Universität, Düsseldorf, D-40225, Germany.
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