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Leibe R, Fritsch-Decker S, Gussmann F, Wagbo AM, Wadhwani P, Diabaté S, Wenzel W, Ulrich AS, Weiss C. Key Role of Choline Head Groups in Large Unilamellar Phospholipid Vesicles for the Interaction with and Rupture by Silica Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207593. [PMID: 37098631 DOI: 10.1002/smll.202207593] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/22/2023] [Indexed: 06/19/2023]
Abstract
For highly abundant silica nanomaterials, detrimental effects on proteins and phospholipids are postulated as critical molecular initiating events that involve hydrogen-bonding, hydrophobic, and/or hydrophilic interactions. Here, large unilamellar vesicles with various well-defined phospholipid compositions are used as biomimetic models to recapitulate membranolysis, a process known to be induced by silica nanoparticles in human cells. Differential analysis of the dominant phospholipids determined in membranes of alveolar lung epithelial cells demonstrates that the quaternary ammonium head groups of phosphatidylcholine and sphingomyelin play a critical and dose-dependent role in vesicle binding and rupture by amorphous colloidal silica nanoparticles. Surface modification by either protein adsorption or by covalent coupling of carboxyl groups suppresses the disintegration of these lipid vesicles, as well as membranolysis in human A549 lung epithelial cells by the silica nanoparticles. Furthermore, molecular modeling suggests a preferential affinity of silanol groups for choline head groups, which is also modulated by the pH value. Biomimetic lipid vesicles can thus be used to better understand specific phospholipid-nanoparticle interactions at the molecular level to support the rational design of safe advanced materials.
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Affiliation(s)
- Regina Leibe
- Institute of Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Susanne Fritsch-Decker
- Institute of Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Florian Gussmann
- Institute of Nanotechnology (INT), KIT, Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Ane Marit Wagbo
- Institute of Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Parvesh Wadhwani
- Institute of Biological Interfaces (IBG-2), KIT, Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Silvia Diabaté
- Institute of Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Wolfgang Wenzel
- Institute of Nanotechnology (INT), KIT, Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Anne S Ulrich
- Institute of Biological Interfaces (IBG-2), KIT, Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Carsten Weiss
- Institute of Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
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2
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Pavan C, Santalucia R, Escolano-Casado G, Ugliengo P, Mino L, Turci F. Physico-Chemical Approaches to Investigate Surface Hydroxyls as Determinants of Molecular Initiating Events in Oxide Particle Toxicity. Int J Mol Sci 2023; 24:11482. [PMID: 37511241 PMCID: PMC10380507 DOI: 10.3390/ijms241411482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/04/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
The study of molecular recognition patterns is crucial for understanding the interactions between inorganic (nano)particles and biomolecules. In this review we focus on hydroxyls (OH) exposed at the surface of oxide particles (OxPs) which can play a key role in molecular initiating events leading to OxPs toxicity. We discuss here the main analytical methods available to characterize surface OH from a quantitative and qualitative point of view, covering thermogravimetry, titration, ζ potential measurements, and spectroscopic approaches (NMR, XPS). The importance of modelling techniques (MD, DFT) for an atomistic description of the interactions between membranes/proteins and OxPs surfaces is also discussed. From this background, we distilled a new approach methodology (NAM) based on the combination of IR spectroscopy and bioanalytical assays to investigate the molecular interactions of OxPs with biomolecules and membranes. This NAM has been already successfully applied to SiO2 particles to identify the OH patterns responsible for the OxPs' toxicity and can be conceivably extended to other surface-hydroxylated oxides.
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Affiliation(s)
- Cristina Pavan
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Torino, 10125 Torino, Italy
- Louvain Centre for Toxicology and Applied Pharmacology, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Rosangela Santalucia
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, 10125 Torino, Italy
| | - Guillermo Escolano-Casado
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, 10125 Torino, Italy
| | - Piero Ugliengo
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, 10125 Torino, Italy
| | - Lorenzo Mino
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, 10125 Torino, Italy
| | - Francesco Turci
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Torino, 10125 Torino, Italy
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, 10125 Torino, Italy
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Guillet É, Brun É, Ferard C, Hardonnière K, Nabhan M, Legrand FX, Pallardy M, Biola-Vidamment A. Human dendritic cell maturation induced by amorphous silica nanoparticles is Syk-dependent and triggered by lipid raft aggregation. Part Fibre Toxicol 2023; 20:12. [PMID: 37076877 PMCID: PMC10114393 DOI: 10.1186/s12989-023-00527-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND Synthetic amorphous silica nanoparticles (SAS-NPs) are widely employed in pharmaceutics, cosmetics, food and concretes. Workers and the general population are exposed daily via diverse routes of exposure. SAS-NPs are generally recognized as safe (GRAS) by the Food and Drug Administration, but because of their nanoscale size and extensive uses, a better assessment of their immunotoxicity is required. In the presence of immune "danger signals", dendritic cells (DCs) undergo a maturation process resulting in their migration to regional lymph nodes where they activate naive T-cells. We have previously shown that fumed silica pyrogenic SAS-NPs promote the two first steps of the adaptative immune response by triggering DC maturation and T-lymphocyte response, suggesting that SAS-NPs could behave as immune "danger signals". The present work aims to identify the mechanism and the signalling pathways involved in DC phenotype modifications provoked by pyrogenic SAS-NPs. As a pivotal intracellular signalling molecule whose phosphorylation is associated with DC maturation, we hypothesized that Spleen tyrosine kinase (Syk) may play a central role in SAS-NPs-induced DC response. RESULTS In human monocyte-derived dendritic cells (moDCs) exposed to SAS-NPs, Syk inhibition prevented the induction of CD83 and CD86 marker expression. A significant decrease in T-cell proliferation and IFN-γ, IL-17F and IL-9 production was found in an allogeneic moDC:T-cell co-culture model. These results suggested that the activation of Syk was necessary for optimal co-stimulation of T-cells. Moreover, Syk phosphorylation, observed 30 min after SAS-NP exposure, occurred upstream of the c-Jun N-terminal kinase (JNK) Mitogen-activated protein kinases (MAPK) and was elicited by the Src family of protein tyrosine kinases. Our results also showed for the first time that SAS-NPs provoked aggregation of lipid rafts in moDCs and that MβCD-mediated raft destabilisation altered Syk activation. CONCLUSIONS We showed that SAS-NPs could act as an immune danger signal in DCs through a Syk-dependent pathway. Our findings revealed an original mechanism whereby the interaction of SAS-NPs with DC membranes promoted aggregation of lipid rafts, leading to a Src kinase-initiated activation loop triggering Syk activation and functional DC maturation.
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Affiliation(s)
- Éléonore Guillet
- INSERM UMR-996, Inserm, Inflammation, Microbiome and Immunosurveillance, Faculté de Pharmacie, Université Paris-Saclay, 17, Avenue Des Sciences, 91400, Orsay, France
| | - Émilie Brun
- Institut de Chimie Physique, CNRS, Université Paris-Saclay, 91400, Orsay, France
| | - Céline Ferard
- Institut de Chimie Physique, CNRS, Université Paris-Saclay, 91400, Orsay, France
| | - Kévin Hardonnière
- INSERM UMR-996, Inserm, Inflammation, Microbiome and Immunosurveillance, Faculté de Pharmacie, Université Paris-Saclay, 17, Avenue Des Sciences, 91400, Orsay, France
| | - Myriam Nabhan
- INSERM UMR-996, Inserm, Inflammation, Microbiome and Immunosurveillance, Faculté de Pharmacie, Université Paris-Saclay, 17, Avenue Des Sciences, 91400, Orsay, France
| | | | - Marc Pallardy
- INSERM UMR-996, Inserm, Inflammation, Microbiome and Immunosurveillance, Faculté de Pharmacie, Université Paris-Saclay, 17, Avenue Des Sciences, 91400, Orsay, France
| | - Armelle Biola-Vidamment
- INSERM UMR-996, Inserm, Inflammation, Microbiome and Immunosurveillance, Faculté de Pharmacie, Université Paris-Saclay, 17, Avenue Des Sciences, 91400, Orsay, France.
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Leinardi R, Pochet A, Uwambayinema F, Yakoub Y, Quesniaux V, Ryffel B, Broz P, Pavan C, Huaux F. Gasdermin D membrane pores orchestrate IL-1α secretion from necrotic macrophages after NFS-rich silica exposure. Arch Toxicol 2023; 97:1001-1015. [PMID: 36840754 PMCID: PMC10025216 DOI: 10.1007/s00204-023-03463-x] [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] [Received: 01/12/2023] [Accepted: 02/16/2023] [Indexed: 02/26/2023]
Abstract
IL-1α is an intracellular danger signal (DAMP) released by macrophages contributing to the development of silica-induced lung inflammation. The exact molecular mechanism orchestrating IL-1α extracellular release from particle-exposed macrophages is still unclear. To delineate this process, murine J774 and bone-marrow derived macrophages were exposed to increasing concentrations (1-40 cm2/ml) of a set of amorphous and crystalline silica particles with different surface chemical features. In particular, these characteristics include the content of nearly free silanols (NFS), a silanol population responsible for silica cytotoxicity recently identified. We first observed de novo stocks of IL-1α in macrophages after silica internalization regardless of particle physico-chemical characteristics and cell stress. IL-1α intracellular production and accumulation were observed by exposing macrophages to biologically-inert or cytotoxic crystalline and amorphous silicas. In contrast, only NFS-rich reactive silica particles triggered IL-1α release into the extracellular milieu from necrotic macrophages. We demonstrate that IL-1α is actively secreted through the formation of gasdermin D (GSDMD) pores in the plasma membrane and not passively released after macrophage plasma membrane lysis. Our findings indicate that the GSDMD pore-dependent secretion of IL-1α stock from macrophages solely depends on cytotoxicity induced by NFS-rich silica. This new regulated process represents a key first event in the mechanism of silica toxicity, suitable to refine the existing adverse outcome pathway (AOP) for predicting the inflammatory activity of silicas.
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Affiliation(s)
- Riccardo Leinardi
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Amandine Pochet
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Francine Uwambayinema
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Yousof Yakoub
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Valérie Quesniaux
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans and Artimmune, Orléans, France
| | - Bernhard Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans and Artimmune, Orléans, France
| | - Petr Broz
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Cristina Pavan
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
- Department of Chemistry, “G. Scansetti” Interdepartmental Center for Studies On Asbestos and Other Toxic Particulates, University of Torino, Torino, Italy
| | - François Huaux
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
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Pavan C, Escolano-Casado G, Bellomo C, Cananà S, Tomatis M, Leinardi R, Mino L, Turci F. Nearly free silanols drive the interaction of crystalline silica polymorphs with membranes: Implications for mineral toxicity. Front Chem 2023; 10:1092221. [PMID: 36726450 PMCID: PMC9884702 DOI: 10.3389/fchem.2022.1092221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/30/2022] [Indexed: 01/18/2023] Open
Abstract
Crystalline silica (CS) is a well-known hazardous material that causes severe diseases including silicosis, lung cancer, and autoimmune diseases. However, the hazard associated to crystalline silica is extremely variable and depends on some specific characteristics, including crystal structure and surface chemistry. The crystalline silica polymorphs share the SiO2 stoichiometry and differentiate for crystal structure. The different crystal lattices in turn expose differently ordered hydroxyl groups at the crystal surface, i.e., the silanols. The nearly free silanols (NFS), a specific population of weakly interacting silanols, have been recently advanced as the key surface feature that governs recognition mechanisms between quartz and cell membrane, initiating toxicity. We showed here that the nearly free silanols occur on the other crystalline silica polymorphs and take part in the molecular interactions with biomembranes. A set of crystalline silica polymorphs, including quartz, cristobalite, tridymite, coesite, and stishovite, was physico-chemically characterized and the membranolytic activity was assessed using red blood cells as model membranes. Infrared spectroscopy in highly controlled conditions was used to profile the surface silanol topochemistry and the occurrence of surface nearly free silanols on crystalline silica polymorphs. All crystalline silica polymorphs, but stishovite were membranolytic. Notably, pristine stishovite did not exhibited surface nearly free silanols. The topochemistry of surface silanols was modulated by thermal treatments, and we showed that the occurrence of nearly free silanols paralleled the membranolytic activity for the crystalline silica polymorphs. These results provide a comprehensive understanding of the structure-activity relationship between nearly free silanols and membranolytic activity of crystalline silica polymorphs, offering a possible clue for interpreting the molecular mechanisms associated with silica hazard and bio-minero-chemical interfacial phenomena, including prebiotic chemistry.
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Affiliation(s)
- Cristina Pavan
- Department of Chemistry, University of Turin, Turin, Italy,“G. Scansetti” Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy,Louvain Centre for Toxicology and Applied Pharmacology, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Guillermo Escolano-Casado
- Department of Chemistry, University of Turin, Turin, Italy,Nanostructured Interfaces and Surfaces Interdepartmental Centre, University of Turin, Turin, Italy
| | - Chiara Bellomo
- Department of Chemistry, University of Turin, Turin, Italy,“G. Scansetti” Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Stefania Cananà
- Department of Chemistry, University of Turin, Turin, Italy,“G. Scansetti” Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Maura Tomatis
- Department of Chemistry, University of Turin, Turin, Italy,“G. Scansetti” Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Riccardo Leinardi
- Louvain Centre for Toxicology and Applied Pharmacology, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Lorenzo Mino
- Department of Chemistry, University of Turin, Turin, Italy,Nanostructured Interfaces and Surfaces Interdepartmental Centre, University of Turin, Turin, Italy
| | - Francesco Turci
- Department of Chemistry, University of Turin, Turin, Italy,“G. Scansetti” Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy,*Correspondence: Francesco Turci,
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Kobayashi T, Tsubokura Y, Oshima Y, Sasaki T, Kawaguchi K, Koga K, Uchida K, Shinohara N, Ajimi S, Kayashima T, Nakai M, Imatanaka N. Time‐course analysis of pulmonary inflammation induced by intratracheal instillation of nanosized crystalline silica particles in F344 rats. J Appl Toxicol 2022; 43:649-661. [PMID: 36317230 DOI: 10.1002/jat.4411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 10/27/2022] [Accepted: 10/27/2022] [Indexed: 11/15/2022]
Abstract
Crystalline silica is an important cause of serious pulmonary diseases, and its toxic potential is known to be associated with its surface electrical properties. However, in vivo data clarifying the relevance of silica's toxic potential, especially its long-term effects, remain insufficient. To investigate the contribution of physico-chemical property including surface potential on the hazard of nanocrystalline silica, we performed single intratracheal instillation testing using five different crystalline silicas in a rat model and assessed time-course changes in pulmonary inflammation, lung burden, and thoracic lymph node loads. Silica-nanoparticles were prepared from two commercial products (Min-U-Sil5 [MS5] and SIO07PB [SPB]) using three different pretreatments: centrifugation (C), grinding (G), and surface dissolving (D). The five types of silica particles-MS5, MS5_C, SPB_C, SPB_G, and SPB_D-were intratracheally instilled into male F344 rats at doses of 0 mg/kg (purified water), 0.22 mg/kg (SPB), and 0.67, 2, or 6 mg/kg (MS5). Bronchoalveolar lavage, a lung burden analysis, and histopathological examination were performed at 3, 28, and 91 days after instillation. Granuloma formation was present in MS5 group at 91 days after instillation, although granuloma formation was suppressed in MS5_C group, which had a smaller particle size. SPB_C induced severe and progressive inflammation and kinetic lung overload, whereas SPB_G and SPB_D induced only slight and transient acute inflammation. Our results support that in vivo toxic potential of nanosilica by intratracheal instillation may involve with surface electrical properties leading to prolonged effect and may not be dependent not only on surface properties but also on other physico-chemical properties.
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Affiliation(s)
- Toshio Kobayashi
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
| | - Yasuhiro Tsubokura
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
| | - Yutaka Oshima
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
| | - Takeshi Sasaki
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Kenji Kawaguchi
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Kenji Koga
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Kunio Uchida
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Naohide Shinohara
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Shozo Ajimi
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
| | - Takakazu Kayashima
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
| | - Makoto Nakai
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
| | - Nobuya Imatanaka
- Chemicals Evaluation and Research Institute, Japan, Hita 3‐822 Ishiimachi Hita‐shi Oita 877‐0061 Japan
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Chen Z, Yang B, Yan Z, Song E, Song Y. Eryptosis is an indicator of hematotoxicity in the risk assessment of environmental amorphous silica nanoparticles exposure: The role of macromolecule corona. Toxicol Lett 2022; 367:40-47. [PMID: 35870742 DOI: 10.1016/j.toxlet.2022.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/01/2022] [Accepted: 07/15/2022] [Indexed: 11/19/2022]
Abstract
Silica nanoparticles (SiO2 NPs) have been widely manufactured for various applications and unintentionally generated in various industrial processes. SiO2 NPs exposure is potentially hazardous to human health. Incremental evidence has indicated the presence of SiO2 NPs in systemic circulation, which warranted their interaction with blood components. Due to the obvious weakness of hemolysis in the risk assessment of environmental NPs, we for the first time use eryptosis as a sensitive indicator to assess the hematotoxicity of SiO2 NPs. In vitro results showed that the exposure of erythrocytes to pristine SiO2 NPs resulted in typical features of eryptosis, including oxidative stress, calcium influx, phosphatidylserine externalization and hemolysis. However, SiO2 NPs covered with mouse plasma (SiO2@MP) or grafted with polyvinylpyrrolidone (SiO2@PVP) did not stimulate eryptosis. Interestingly, neither bare nor macromolecule-decolorated SiO2 NPs caused eryptosis in our in vivo mouse model, highlighting the protective role of coronal proteins on the amelioration of SiO2 NPs-induced hematotoxicity. These results emphasized the influences of surface modification on the toxicity of environmental NPs.
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Affiliation(s)
- Zhangde Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Rd, Haidian District, Beijing 100085, China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Rd, Beibei District, Chongqing 400715, China
| | - Bingwei Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Rd, Haidian District, Beijing 100085, China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Rd, Beibei District, Chongqing 400715, China
| | - Ziyi Yan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Rd, Haidian District, Beijing 100085, China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Rd, Beibei District, Chongqing 400715, China
| | - Erqun Song
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Rd, Beibei District, Chongqing 400715, China
| | - Yang Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Rd, Haidian District, Beijing 100085, China.
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8
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Grytting VS, Refsnes M, Låg M, Erichsen E, Røhr TS, Snilsberg B, White RA, Øvrevik J. The importance of mineralogical composition for the cytotoxic and pro-inflammatory effects of mineral dust. Part Fibre Toxicol 2022; 19:46. [PMID: 35794670 PMCID: PMC9261052 DOI: 10.1186/s12989-022-00486-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/21/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Respirable mineral particles represent a potential health hazard in occupational settings and ambient air. Previous studies show that mineral particles may induce cytotoxicity and inflammatory reactions in vitro and in vivo and that the potency varies between samples of different composition. However, the reason for these differences is largely unknown and the impact of mineralogical composition on the biological effects of mineral dust remains to be determined.
Methods
We have assessed the cytotoxic and pro-inflammatory effects of ten mineral particle samples of different composition in human bronchial epithelial cells (HBEC3-KT) and THP-1-derived macrophages, as well as their membranolytic properties in erythrocytes. Moreover, the results were compiled with the results of recently published experiments on the effects of stone particle exposure and analysed using linear regression models to elucidate which mineral components contribute most to the toxicity of mineral dust.
Results
While all mineral particle samples were more cytotoxic to HBEC3-KT cells than THP-1 macrophages, biotite and quartz were among the most cytotoxic in both cell models. In HBEC3-KT cells, biotite and quartz also appeared to be the most potent inducers of pro-inflammatory cytokines, while the quartz, Ca-feldspar, Na-feldspar and biotite samples were the most potent in THP-1 macrophages. All particle samples except quartz induced low levels of membranolysis. The regression analyses revealed associations between particle bioactivity and the content of quartz, muscovite, plagioclase, biotite, anorthite, albite, microcline, calcite, chlorite, orthopyroxene, actinolite and epidote, depending on the cell model and endpoint. However, muscovite was the only mineral consistently associated with increased cytotoxicity and cytokine release in both cell models.
Conclusions
The present study provides further evidence that mineral particles may induce cytotoxicity and inflammation in cells of the human airways and that particle samples of different mineralogical composition differ in potency. The results show that quartz, while being among the most potent samples, does not fully predict the toxicity of mineral dust, highlighting the importance of other particle constituents. Moreover, the results indicate that the phyllosilicates muscovite and biotite may be more potent than other minerals assessed in the study, suggesting that this group of sheet-like minerals may warrant further attention.
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Vakurov A, Drummond-Brydson R, William N, Sanver D, Bastús N, Moriones OH, Puntes V, Nelson AL. Heterogeneous Rate Constant for Amorphous Silica Nanoparticle Adsorption on Phospholipid Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5372-5380. [PMID: 35471829 PMCID: PMC9097521 DOI: 10.1021/acs.langmuir.1c03155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/24/2022] [Indexed: 06/14/2023]
Abstract
The interaction of amorphous silica nanoparticles with phospholipid monolayers and bilayers has received a great deal of interest in recent years and is of importance for assessing potential cellular toxicity of such species, whether natural or synthesized for the purpose of nanomedical drug delivery and other applications. This present communication studies the rate of silica nanoparticle adsorption on to phospholipid monolayers in order to extract a heterogeneous rate constant from the data. This rate constant relates to the initial rate of growth of an adsorbed layer of nanoparticles as SiO2 on a unit area of the monolayer surface from unit concentration in dispersion. Experiments were carried out using the system of dioleoyl phosphatidylcholine (DOPC) monolayers deposited on Pt/Hg electrodes in a flow cell. Additional studies were carried out on the interaction of soluble silica with these layers. Results show that the rate constant is effectively constant with respect to silica nanoparticle size. This is interpreted as indicating that the interaction of hydrated SiO2 molecular species with phospholipid polar groups is the molecular initiating event (MIE) defined as the initial interaction of the silica particle surface with the phospholipid layer surface promoting the adsorption of silica nanoparticles on DOPC. The conclusion is consistent with the observed significant interaction of soluble SiO2 with the DOPC layer and the established properties of the silica-water interface.
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Affiliation(s)
- Alex Vakurov
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
| | - Rik Drummond-Brydson
- School
of Chemical and Process Engineering, University
of Leeds, Leeds LS2 9JT, U.K.
| | - Nicola William
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
| | - Didem Sanver
- Department
of Food Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya 42050, Turkey
| | - Neus Bastús
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - Oscar H. Moriones
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Barcelona 08193, Spain
- Universitat
Autònoma de Barcelona (UAB), Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - V. Puntes
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Barcelona 08193, Spain
- Fundacio
Hospital Universitari Vall D’Hebron - Institut De Recerca, Passeig Vall D Hebron, 119-129, Barcelona 08035, Spain
- ICREA, Pg. Lluıs Companys 23, Barcelona 08010, Spain
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10
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Characterisation of dust emissions from machined engineered stones to understand the hazard for accelerated silicosis. Sci Rep 2022; 12:4351. [PMID: 35288630 PMCID: PMC8921240 DOI: 10.1038/s41598-022-08378-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/04/2022] [Indexed: 12/22/2022] Open
Abstract
Engineered stones are novel construction materials associated with a recent upsurge in silicosis cases among workers in the stonemason industry. In order to understand the hazard for the short latency of lung disease among stonemasons, we simulated real-time dust exposure scenario by dry-machining engineered stones in controlled conditions, capturing and analysing the respirable dust generated for physical and chemical characteristics. Natural granite and marble were included for comparison. Cutting engineered stones generated high concentrations of very fine particles (< 1 µm) with > 80% respirable crystalline silica content, in the form of quartz and cristobalite. Engineered stones also contained 8–20% resin and 1–8% by weight metal elements. In comparison, natural stones had far lower respirable crystalline silica (4- 30%) and much higher metal content, 29–37%. Natural stone dust emissions also had a smaller surface area than engineered stone, as well as lower surface charge. This study highlighted the physical and chemical variability within engineered stone types as well as between engineered and natural stones. This information will ultimately help understand the unique hazard posed by engineered stone fabrication work and help guide the development of specific engineering control measures targeting lower exposure to respirable crystalline silica.
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11
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The EXIMIOUS project—Mapping exposure-induced immune effects: connecting the exposome and the immunome. Environ Epidemiol 2022; 6:e193. [PMID: 35169671 PMCID: PMC8835560 DOI: 10.1097/ee9.0000000000000193] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/27/2021] [Indexed: 11/26/2022] Open
Abstract
Immune-mediated, noncommunicable diseases—such as autoimmune and inflammatory diseases—are chronic disorders, in which the interaction between environmental exposures and the immune system plays an important role. The prevalence and societal costs of these diseases are rising in the European Union. The EXIMIOUS consortium—gathering experts in immunology, toxicology, occupational health, clinical medicine, exposure science, epidemiology, bioinformatics, and sensor development—will study eleven European study populations, covering the entire lifespan, including prenatal life. Innovative ways of characterizing and quantifying the exposome will be combined with high-dimensional immunophenotyping and -profiling platforms to map the immune effects (immunome) induced by the exposome. We will use two main approaches that “meet in the middle”—one starting from the exposome, the other starting from health effects. Novel bioinformatics tools, based on systems immunology and machine learning, will be used to integrate and analyze these large datasets to identify immune fingerprints that reflect a person’s lifetime exposome or that are early predictors of disease. This will allow researchers, policymakers, and clinicians to grasp the impact of the exposome on the immune system at the level of individuals and populations.
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12
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Feray A, Guillet E, Szely N, Hullo M, Legrand FX, Brun E, Rabilloud T, Pallardy M, Biola-Vidamment A. Synthetic amorphous silica nanoparticles promote human dendritic cell maturation and CD4 + T-lymphocyte activation. Toxicol Sci 2021; 185:105-116. [PMID: 34633463 DOI: 10.1093/toxsci/kfab120] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Innate immune cells such as dendritic cells (DCs) sense and engulf nanomaterials potentially leading to an adverse immune response. Indeed, as described for combustion-derived particles, nanomaterials could be sensed as danger signals, enabling DCs to undergo a maturation process, migrate to regional lymph nodes and activate naive T-lymphocytes. Synthetic amorphous silica nanoparticles (SAS-NPs) are widely used as food additives, cosmetics, and construction materials. This work aimed to evaluate in vitro the effects of manufactured SAS-NPs, produced by thermal or wet routes, on human DCs functions and T-cell activation. Human monocyte-derived DCs (moDCs) were exposed for 16 hours to three endotoxin-free test materials: fumed silica NPs from Sigma-Aldrich (#S5505) or the JRC Nanomaterial Repository (NM-202) and colloidal Ludox®TMA NPs. Cell viability, phenotypical changes, cytokines production, internalization, and allogeneic CD4+ T-cells proliferation were evaluated. Our results showed that all SAS-NPs significantly upregulated the surface expression of CD86 and CD83 activation markers. Secretions of pro-inflammatory cytokines (CXCL-8 and CXCL-12) were significantly enhanced in a dose-dependent manner in the moDCs culture supernatants by all SAS-NPs tested. In an allogeneic co-culture, fumed silica-activated moDCs significantly increased T-lymphocyte proliferation at all T-cell:DC ratios compared to unloaded moDCs. Moreover, analysis of co-culture supernatants regarding the production of T-cell-derived cytokines showed a significant increase of IL-9 and IL-17A and F, as well as an upregulation of IL-5, consistent with the pro-inflammatory phenotype of treated-moDCs. Taken together, these results suggest that SAS-NPs could induce functional moDCs maturation and play a role in the immunization process against environmental antigens.
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Affiliation(s)
- Alexia Feray
- Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290, Châtenay-Malabry, France
| | - Eléonore Guillet
- Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290, Châtenay-Malabry, France
| | - Natacha Szely
- Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290, Châtenay-Malabry, France
| | - Marie Hullo
- Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290, Châtenay-Malabry, France
| | - François-Xavier Legrand
- Université Paris-Saclay, CNRS, Institut Galien Paris Saclay, 92296, Châtenay-Malabry, France
| | - Emilie Brun
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, 91405, Orsay, France
| | - Thierry Rabilloud
- UMR CNRS 5249, Laboratoire de Chimie et Biologie des Métaux, CEA-Grenoble, 17 avenue des Martyrs, 38 054 Grenoble Cedex 09, France
| | - Marc Pallardy
- Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290, Châtenay-Malabry, France
| | - Armelle Biola-Vidamment
- Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290, Châtenay-Malabry, France
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13
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Hoseini ZS, Hajizade A, Razmyar J, Ahmadian G, Arpanaei A. Mesoporous silica nanoparticles-based formulations of a chimeric proteinous vaccine candidate against necrotic enteritis disease. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112316. [PMID: 34474867 DOI: 10.1016/j.msec.2021.112316] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/21/2021] [Accepted: 07/06/2021] [Indexed: 11/28/2022]
Abstract
To develop a nanoparticle-based vaccine against necrotic enteritis, a chimeric antigen (rNA) consisting of the main antigens of Clostridium perfringens, NetB, and Alpha toxin, was prepared. Then, the rNA molecules were loaded onto the functionalized mesoporous silica nanoparticles (MSNPs) using physical adsorption or covalent conjugation methods. The characterization of synthesized nanoparticles was performed by scanning electron microscopy, dynamic light scattering, zeta potential measurement, Fourier transform infrared spectroscopy, and thermogravimetry techniques. The results revealed that the spherical nanoparticles with an average diameter of 90 ± 12 nm and suitable surface chemistries are prepared. MSNPs-based formulations did not show any significant toxicity on the chicken embryo fibroblast cells. The results of the challenge experiments using subcutaneous or oral administration of the as-prepared formulations in the animal model showed that the as-prepared nanosystems, similar to those formulated with a commercial adjuvant (Montanide), present stronger humoral immune responses as compared to that of the free proteins. It was also indicated that the best protection is obtained in groups vaccinated with MSNPs-based nanovaccine, especially those who orally received covalently conjugated nanovaccine candidates. These results recommend that the MSNPs-based formulated chimeric proteinous vaccine candidates can be considered as an effective immunizing system for the oral vaccination of poultry against gastrointestinal infectious diseases.
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Affiliation(s)
- Zakieh Sadat Hoseini
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Abbas Hajizade
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Jamshid Razmyar
- Department of Avian Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Gholamreza Ahmadian
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
| | - Ayyoob Arpanaei
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
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14
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Luo Y, Li S, Shen K, Song Y, Zhang J, Su W, Yang X. Study on the Hemostasis Characteristics of Biomaterial Frustules Obtained from Diatom Navicula australoshetlandica sp. MATERIALS 2021; 14:ma14133752. [PMID: 34279325 PMCID: PMC8269914 DOI: 10.3390/ma14133752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/23/2021] [Accepted: 06/30/2021] [Indexed: 12/17/2022]
Abstract
Diatoms, known as photosynthetic unicellular algae, can produce natural biosilica frustules that exhibit great biocompatibility, superhydrophilicity, and superhemophilicity. In our study, the diatom Navicula australoshetlandica sp. was isolated from aquaculture wastewater and pretreated to obtain frustules so as to explore their hemostasis characteristics. A special “porous web” (6–8 nm) substructure in the ordered nanopores (165–350 nm) of boat-shaped diatom frustule was observed in Navicula australoshetlandica sp. using SEM and TEM analysis. Moreover, X-ray, N2 adsorption–desorption isotherms, and BET analysis showed that the diatom frustule is a mesoporous material with a surface area of 401.45 m2 g−1 amorphous silica. FTIR analysis showed that Navicula australoshetlandica sp. frustules possessed abundant OH functional groups. A low hemolysis ratio was observed for 1–5 mg mL−1 diatom frustules that did not exceed 1.55 ± 0.06%, which indicates favorable hemocompatibility. The diatom frustules exhibited the shortest clotting time (134.99 ± 7.00 s) with a hemostasis material/blood (mg/μL) ratio of 1:100, which is 1.83 times (112.32 s) shorter than that of chitosan. The activated partial thromboplastin time (aPTT) of diatom frustule was also 44.53 s shorter than the control. Our results demonstrate the potential of Navicula australoshetlandica sp. diatom frustules to be used as medical hemostasis material.
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Affiliation(s)
- Yanqing Luo
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (Y.L.); (S.L.); (K.S.); (Y.S.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Shuangfei Li
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (Y.L.); (S.L.); (K.S.); (Y.S.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Kun Shen
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (Y.L.); (S.L.); (K.S.); (Y.S.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Yingjie Song
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (Y.L.); (S.L.); (K.S.); (Y.S.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Jiangtao Zhang
- Shenzhen Jawkai Bioengineering R & D Center Co., Ltd., Shenzhen 518120, China;
| | - Wen Su
- Department of Pathology, Shenzhen University Health Science Center, Shenzhen 518055, China;
| | - Xuewei Yang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (Y.L.); (S.L.); (K.S.); (Y.S.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
- Correspondence: ; Tel.: +86-185-65693989
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15
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Sydor MJ, Anderson DS, Steele HBB, Ross JBA, Holian A. Fluorescence lifetime imaging microscopy and time-resolved anisotropy of nanomaterial-induced changes to red blood cell membranes. Methods Appl Fluoresc 2021; 9. [PMID: 33973872 DOI: 10.1088/2050-6120/abf424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/31/2021] [Indexed: 11/11/2022]
Abstract
With the use of engineered nano-materials (ENM) becoming more prevalent, it is essential to determine potential human health impacts. Specifically, the effects on biological lipid membranes will be important for determining molecular events that may contribute to both toxicity and suitable biomedical applications. To better understand the mechanisms of ENM-induced hemolysis and membrane permeability, fluorescence lifetime imaging microscopy (FLIM) was performed on human red blood cells (RBC) exposed to titanium dioxide ENM, zinc oxide ENM, or micron-sized crystalline silica. In the FLIM images, changes in the intensity-weighted fluorescence lifetime of the lipophilic fluorescence probe Di-4-ANEPPDHQ were used to identify localized changes to membrane. Time-resolved fluorescence anisotropy and FLIM of RBC treated with methyl-ß-cyclodextrin was performed to aid in interpreting how changes to membrane order influence changes in the fluorescence lifetime of the probe. Treatment of RBC with methyl-ß-cyclodextrin caused an increase in the wobble-in-a-cone angle and shorter fluorescence lifetimes of di-4-ANEPPDHQ. Treatment of RBC with titanium dioxide caused a significant increase in fluorescence lifetime compared to non-treated samples, indicating increased membrane order. Crystalline silica also increased the fluorescence lifetime compared to control levels. In contrast, zinc oxide decreased the fluorescence lifetime, representing decreased membrane order. However, treatment with soluble zinc sulfate resulted in no significant change in fluorescence lifetime, indicating that the decrease in order of the RBC membranes caused by zinc oxide ENM was not due to zinc ions formed during potential dissolution of the nanoparticles. These results give insight into mechanisms for how these three materials might disrupt RBC membranes and membranes of other cells. The results also provide evidence for a direct correlation between the size, interaction-available surface area of the nano-material and cell membrane disruption.
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Affiliation(s)
- Matthew J Sydor
- Center for Environmental Health Sciences, Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, United States of America
| | - Donald S Anderson
- Center for Environmental Health Sciences, Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, United States of America
| | - Harmen B B Steele
- Department of Chemistry and Biochemistry, University of Montana, Missoula, United States of America.,Center for Biomolecular Structure and Dynamics, University of Montana, Missoula, United States of America
| | - J B Alexander Ross
- Department of Chemistry and Biochemistry, University of Montana, Missoula, United States of America.,Center for Biomolecular Structure and Dynamics, University of Montana, Missoula, United States of America
| | - Andrij Holian
- Center for Environmental Health Sciences, Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, United States of America
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Grytting VS, Refsnes M, Øvrevik J, Halle MS, Schönenberger J, van der Lelij R, Snilsberg B, Skuland T, Blom R, Låg M. Respirable stone particles differ in their ability to induce cytotoxicity and pro-inflammatory responses in cell models of the human airways. Part Fibre Toxicol 2021; 18:18. [PMID: 33957952 PMCID: PMC8101231 DOI: 10.1186/s12989-021-00409-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 04/08/2021] [Indexed: 11/30/2022] Open
Abstract
Background Respirable stone- and mineral particles may be a major constituent in occupational and ambient air pollution and represent a possible health hazard. However, with exception of quartz and asbestos, little is known about the toxic properties of mineral particles. In the present study, the pro-inflammatory and cytotoxic responses to six stone particle samples of different composition and with diameter below 10 μm were assessed in human bronchial epithelial cells (HBEC3-KT), THP-1 macrophages and a HBEC3-KT/THP-1 co-culture. Moreover, particle-induced lysis of human erythrocytes was assessed to determine the ability of the particles to lyse biological membranes. Finally, the role of the NLRP3 inflammasome was assessed using a NLRP3-specific inhibitor and detection of ASC oligomers and cleaved caspase-1 and IL-1β. A reference sample of pure α-quartz was included for comparison. Results Several stone particle samples induced a concentration-dependent increase in cytotoxicity and secretion of the pro-inflammatory cytokines CXCL8, IL-1α, IL-1β and TNFα. In HBEC3-KT, quartzite and anorthosite were the most cytotoxic stone particle samples and induced the highest levels of cytokines. Quartzite and anorthosite were also the most cytotoxic samples in THP-1 macrophages, while anorthosite and hornfels induced the highest cytokine responses. In comparison, few significant differences between particle samples were detected in the co-culture. Adjusting responses for differences in surface area concentrations did not fully account for the differences between particle samples. Moreover, the stone particles had low hemolytic potential, indicating that the effects were not driven by membrane lysis. Pre-incubation with a NLRP3-specific inhibitor reduced stone particle-induced cytokine responses in THP-1 macrophages, but not in HBEC3-KT cells, suggesting that the effects are mediated through different mechanisms in epithelial cells and macrophages. Particle exposure also induced an increase in ASC oligomers and cleaved caspase-1 and IL-1β in THP-1 macrophages, confirming the involvement of the NLRP3 inflammasome. Conclusions The present study indicates that stone particles induce cytotoxicity and pro-inflammatory responses in human bronchial epithelial cells and macrophages, acting through NLRP3-independent and -dependent mechanisms, respectively. Moreover, some particle samples induced cytotoxicity and cytokine release to a similar or greater extent than α-quartz. Thus, these minerals warrant further attention in future research. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-021-00409-y.
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Affiliation(s)
- Vegard Sæter Grytting
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway.
| | - Magne Refsnes
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway
| | - Johan Øvrevik
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway
| | | | | | | | | | - Tonje Skuland
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway
| | | | - Marit Låg
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway.
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17
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Costa LSD, Khan LU, Franqui LS, Delite FDS, Muraca D, Martinez DST, Knobel M. Hybrid magneto-luminescent iron oxide nanocubes functionalized with europium complexes: synthesis, hemolytic properties and protein corona formation. J Mater Chem B 2021; 9:428-439. [PMID: 33367419 DOI: 10.1039/d0tb02454f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The use of hybrid nanostructures based on magneto-luminescent properties is a promising strategy for nano-bio applications and theranostics platforms. In this work, we carried out the synthesis and functionalization of iron oxide nanocubes (IONCs) to obtain multifunctional hybrid nanostructures towards biomedical applications. The IONCs were functionalized with tetraethylorthosilicate, thenoyltrifluoroacetone-propyl-triethoxysilane and europium(iii)-dibenzoylmethane complexes to obtain the materials termed as IOCNCs@SiO2, IONCs@SiO2TTA, IONCs@SiO2TTA-Eu and IONCs@SiO2-TTA-Eu-DBM, respectively. Then, the biological interactions of these nanostructures with red blood cells - RBCs (hemolysis) and human blood plasma (protein corona formation) were evaluated. The XPS spectrocopy and EDS chemical mapping analysis showed that each domain is homogeneously occupied in the hybrid material, with the magnetic core at the center and the luminescent domain on the surface of the hybrid nanomaterial with a core@shell like structure. Futhermore, after each functionalization step, the nanomaterial surface charge drastically changed, with critical impact on RBC lysis and corona formation. While IONCs@SiO2 and IONCs@SiO2-TTA-Eu-DBM showed hemolytic properties in a dose-dependent manner, the IONCs@SiO2TTA-Eu did not present any hemolytic effect up to 300 μg mL-1. Protein corona results showed a pattern of selective adsorption of proteins with each surface of the synthesized hybrid materials. However, as a general result, a suppression of hemolysis after protein corona formation in all tests was verified. Finally, this study provides a solid background for further applications of these hybrid magneto-luminescent materials containing new surface functionalities in the emerging field of medical nanobiotechnology.
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Affiliation(s)
- Luelc Souza da Costa
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil. and "Gleb Wataghim" Institute of Physics (IFGW), University of Campinas (Unicamp), Campinas, Sao Paulo, Brazil.
| | - Latif Ullah Khan
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil. and Synchrotron-Light for Experimental Science and Applications in the Middle East (SESAME), Allan, Jordan
| | - Lidiane Silva Franqui
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil.
| | - Fabrício de Souza Delite
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil.
| | - Diego Muraca
- "Gleb Wataghim" Institute of Physics (IFGW), University of Campinas (Unicamp), Campinas, Sao Paulo, Brazil.
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil.
| | - Marcelo Knobel
- "Gleb Wataghim" Institute of Physics (IFGW), University of Campinas (Unicamp), Campinas, Sao Paulo, Brazil.
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18
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Pouroutzidou GK, Liverani L, Theocharidou A, Tsamesidis I, Lazaridou M, Christodoulou E, Beketova A, Pappa C, Triantafyllidis KS, Anastasiou AD, Papadopoulou L, Bikiaris DN, Boccaccini AR, Kontonasaki E. Synthesis and Characterization of Mesoporous Mg- and Sr-Doped Nanoparticles for Moxifloxacin Drug Delivery in Promising Tissue Engineering Applications. Int J Mol Sci 2021; 22:E577. [PMID: 33430065 PMCID: PMC7827177 DOI: 10.3390/ijms22020577] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
Mesoporous silica-based nanoparticles (MSNs) are considered promising drug carriers because of their ordered pore structure, which permits high drug loading and release capacity. The dissolution of Si and Ca from MSNs can trigger osteogenic differentiation of stem cells towards extracellular matrix calcification, while Mg and Sr constitute key elements of bone biology and metabolism. The aim of this study was the synthesis and characterization of sol-gel-derived MSNs co-doped with Ca, Mg and Sr. Their physico-chemical properties were investigated by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray analysis (SEM/EDX), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence spectroscopy (XRF), Brunauer Emmett Teller and Brunauer Joyner Halenda (BET/BJH), dynamic light scattering (DLS) and ζ-potential measurements. Moxifloxacin loading and release profiles were assessed with high performance liquid chromatography (HPLC) cell viability on human periodontal ligament fibroblasts and their hemolytic activity in contact with human red blood cells (RBCs) at various concentrations were also investigated. Doped MSNs generally retained their textural characteristics, while different compositions affected particle size, hemolytic activity and moxifloxacin loading/release profiles. All co-doped MSNs revealed the formation of hydroxycarbonate apatite on their surface after immersion in simulated body fluid (SBF) and promoted mitochondrial activity and cell proliferation.
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Affiliation(s)
- Georgia K. Pouroutzidou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.K.P.); (I.T.)
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (A.R.B.)
| | - Anna Theocharidou
- School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (A.B.)
| | - Ioannis Tsamesidis
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.K.P.); (I.T.)
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, 31400 Toulouse, France
| | - Maria Lazaridou
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.L.); (E.C.); (C.P.); (K.S.T.); (D.N.B.)
| | - Evi Christodoulou
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.L.); (E.C.); (C.P.); (K.S.T.); (D.N.B.)
| | - Anastasia Beketova
- School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (A.B.)
| | - Christina Pappa
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.L.); (E.C.); (C.P.); (K.S.T.); (D.N.B.)
| | - Konstantinos S. Triantafyllidis
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.L.); (E.C.); (C.P.); (K.S.T.); (D.N.B.)
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
| | - Antonios D. Anastasiou
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M1 3AL, UK;
| | - Lambrini Papadopoulou
- School of Geology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Dimitrios N. Bikiaris
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.L.); (E.C.); (C.P.); (K.S.T.); (D.N.B.)
| | - Aldo R. Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (A.R.B.)
| | - Eleana Kontonasaki
- School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (A.B.)
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
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Pavan C, Santalucia R, Leinardi R, Fabbiani M, Yakoub Y, Uwambayinema F, Ugliengo P, Tomatis M, Martra G, Turci F, Lison D, Fubini B. Nearly free surface silanols are the critical molecular moieties that initiate the toxicity of silica particles. Proc Natl Acad Sci U S A 2020; 117:27836-27846. [PMID: 33097669 PMCID: PMC7668052 DOI: 10.1073/pnas.2008006117] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Inhalation of silica particles can induce inflammatory lung reactions that lead to silicosis and/or lung cancer when the particles are biopersistent. This toxic activity of silica dusts is extremely variable depending on their source and preparation methods. The exact molecular moiety that explains and predicts this variable toxicity of silica remains elusive. Here, we have identified a unique subfamily of silanols as the major determinant of silica particle toxicity. This population of "nearly free silanols" (NFS) appears on the surface of quartz particles upon fracture and can be modulated by thermal treatments. Density functional theory calculations indicates that NFS locate at an intersilanol distance of 4.00 to 6.00 Å and form weak mutual interactions. Thus, NFS could act as an energetically favorable moiety at the surface of silica for establishing interactions with cell membrane components to initiate toxicity. With ad hoc prepared model quartz particles enriched or depleted in NFS, we demonstrate that NFS drive toxicity, including membranolysis, in vitro proinflammatory activity, and lung inflammation. The toxic activity of NFS is confirmed with pyrogenic and vitreous amorphous silica particles, and industrial quartz samples with noncontrolled surfaces. Our results identify the missing key molecular moieties of the silica surface that initiate interactions with cell membranes, leading to pathological outcomes. NFS may explain other important interfacial processes involving silica particles.
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Affiliation(s)
- Cristina Pavan
- Louvain Centre for Toxicology and Applied Pharmacology, UCLouvain, 1200 Brussels, Belgium
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, 10125 Turin, Italy
| | - Rosangela Santalucia
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- Nanostructured Interfaces and Surfaces Interdepartmental Centre, 10125 Turin, Italy
| | - Riccardo Leinardi
- Louvain Centre for Toxicology and Applied Pharmacology, UCLouvain, 1200 Brussels, Belgium
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, 10125 Turin, Italy
| | - Marco Fabbiani
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- Nanostructured Interfaces and Surfaces Interdepartmental Centre, 10125 Turin, Italy
| | - Yousof Yakoub
- Louvain Centre for Toxicology and Applied Pharmacology, UCLouvain, 1200 Brussels, Belgium
| | - Francine Uwambayinema
- Louvain Centre for Toxicology and Applied Pharmacology, UCLouvain, 1200 Brussels, Belgium
| | - Piero Ugliengo
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- Nanostructured Interfaces and Surfaces Interdepartmental Centre, 10125 Turin, Italy
| | - Maura Tomatis
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, 10125 Turin, Italy
- Nanostructured Interfaces and Surfaces Interdepartmental Centre, 10125 Turin, Italy
| | - Gianmario Martra
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, 10125 Turin, Italy
- Nanostructured Interfaces and Surfaces Interdepartmental Centre, 10125 Turin, Italy
| | - Francesco Turci
- Department of Chemistry, University of Turin, 10124 Turin, Italy;
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, 10125 Turin, Italy
- Nanostructured Interfaces and Surfaces Interdepartmental Centre, 10125 Turin, Italy
| | - Dominique Lison
- Louvain Centre for Toxicology and Applied Pharmacology, UCLouvain, 1200 Brussels, Belgium;
| | - Bice Fubini
- Department of Chemistry, University of Turin, 10124 Turin, Italy
- "G. Scansetti" Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates, 10125 Turin, Italy
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Horspool AM, Wang T, Scaringella YS, Taub ME, Chan TS. Human Liver Microsomes Immobilized on Magnetizable Beads: A Novel Approach to Study In Vitro Drug Metabolism. Drug Metab Dispos 2020; 48:645-654. [PMID: 32474441 PMCID: PMC7370995 DOI: 10.1124/dmd.120.090696] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/13/2020] [Indexed: 01/08/2023] Open
Abstract
Human liver microsomes (HLM) are a commonly used tool to study drug metabolism in vitro. Typical experiments conducted using suspensions of HLM can be challenging to separate from the incubation solution without lengthy ultracentrifugation steps. Magnetizable beads coated with silica (MGBS) were found to bind strongly to HLM, which could then be isolated and purified using a magnet. Binding of HLM to the MGBS (HLM-MGBS) was demonstrated to be mediated by strong interactions between microsomal phospholipids and MGBS, as artificially prepared phosphatidylcholine (PC) liposomes could be more efficiently captured by the MGBS. HLM-MGBS complexes retained functional cytochrome P450 and uridine-diphosphate-glucuronosyltransferase (UGT) activity as indicated by CYP2C8-mediated amodiaquine de-ethylation, CYP3A4-mediated midazolam 1'hydroxylation, UGT1A1-mediated glucuronidation of estradiol, UGT1A9-mediated glucuronidation of propofol, and UGT2B7-mediated glucuronidation of zidovudine. When comparing suspension HLM alone with HLM-MGBS complexes containing equivalent amounts of HLM, the intrinsic clearance (CLint) of CYP450 substrates was comparable; however, CLint of UGT1A1, UGT1A9, and UGT2B7 was increased in the HLM-MGBS system between 1.5- and 6-fold. HLM-MGBS used in an incubation could also be readily replaced with fresh HLM-MGBS to maintain the presence of active enzymes. Thus, HLM-MGBS demonstrate increased in vitro metabolic efficiency and manipulability, providing a new platform for determination of accurate metabolic parameters. SIGNIFICANCE STATEMENT: The following work describes the strong binding of HLM to magnetizable beads. In addition, the preservation of enzyme activity on the bound HLM provides a novel means to conduct preclinical metabolism studies.
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Affiliation(s)
- Alexander M Horspool
- Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut
| | - Ting Wang
- Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut
| | - Young-Sun Scaringella
- Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut
| | - Mitchell E Taub
- Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut
| | - Tom S Chan
- Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut
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21
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Pyrogenic and Precipitated Amorphous Silica Nanoparticles Differentially Affect Cell Responses to LPS in Human Macrophages. NANOMATERIALS 2020; 10:nano10071395. [PMID: 32708373 PMCID: PMC7407657 DOI: 10.3390/nano10071395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/09/2020] [Accepted: 07/14/2020] [Indexed: 12/23/2022]
Abstract
Previous work has demonstrated that precipitated (NM-200) and pyrogenic (NM-203) Amorphous Silica Nanoparticles (ASNPs) elicit the inflammatory activation of murine macrophages, with more pronounced effects observed with NM-203. Here, we compare the effects of low doses of NM-200 and NM-203 on human macrophage-like THP-1 cells, assessing how the pre-exposure to these nanomaterials affects the cell response to lipopolysaccharide (LPS). Cell viability was affected by NM-203, but not by NM-200, and only in the presence of LPS. While NM-203 stimulated mTORC1, neither ASNPs activated NFκB or the transcription of its target genes PTGS2 and IL1B. NM-200 and NM-203 caused a block of the autophagic flux and inhibited the LPS-dependent increase of Glutamine Synthetase (GS) expression. Both ASNPs suppressed the activation of caspase-1, delaying the LPS-dependent secretion of IL-1β. Thus, ASNPs modulate several important pathways in human macrophages, altering their response to LPS. NM-203 had larger effects on autophagy, mTORC1 activity and GS expression than NM-200, confirming the higher biological activity of pyrogenic ASNPs when compared with precipitated ASNPs.
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22
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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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23
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Ziglari T, Anderson DS, Holian A. Determination of the relative contribution of the non-dissolved fraction of ZnO NP on membrane permeability and cytotoxicity. Inhal Toxicol 2020; 32:86-95. [PMID: 32216500 DOI: 10.1080/08958378.2020.1743394] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: While the role of lysosomal membrane permeabilization (LMP) in NP-induced inflammatory responses has been recognized, the underlying mechanism of LMP is still unclear. The assumption has been that zinc oxide (ZnO)-induced LMP is due to Zn2+; however, little is known about the role of ZnO nanoparticles (NP) in toxicity.Methods: We examined the contribution of intact ZnO NP on membrane permeability using red blood cells (RBC) and undifferentiated THP-1 cells as models of particle-membrane interactions to simulate ZnO NP-lysosomal membrane interaction. The integrity of plasma membranes was evaluated by transmission electron microscopy (TEM) and confocal microscopy. ZnO NP dissolution was determined using ZnAF-2F, Zn2+ specific probe. The stability of ZnO NP inside the phagolysosomes of phagocytic cells, differentiated THP-1, alveolar macrophages, and bone marrow-derived macrophages, was determined.Results: ZnO NP caused significant hemolysis and cytotoxicity under conditions of negligible dissolution. Fully ionized Zn2SO4 caused slight hemolysis, while partially ionized ZnO induced significant hemolysis. Confocal microscopy and TEM images did not reveal membrane disruption in RBC and THP-1 cells, respectively. ZnO NP remained intact inside the phagolysosomes after a 4 h incubation with phagocytic cells.Conclusions: These studies demonstrate the ability of intact ZnO NP to induce membrane permeability and cytotoxicity without the contribution of dissolved Zn2+, suggesting that ZnO NP toxicity does not necessarily depend upon Zn2+. The stability of ZnO NP inside the phagolysosomes suggests that LMP is the result of the toxic effect of intact ZnO NP on phagolysosomal membranes.
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Affiliation(s)
- Tahereh Ziglari
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
| | - Donald S Anderson
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
| | - Andrij Holian
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
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Tsamesidis I, Pouroutzidou GK, Lymperaki E, Kazeli K, Lioutas CB, Christodoulou E, Perio P, Reybier K, Pantaleo A, Kontonasaki E. Effect of ion doping in silica-based nanoparticles on the hemolytic and oxidative activity in contact with human erythrocytes. Chem Biol Interact 2020; 318:108974. [PMID: 32032594 DOI: 10.1016/j.cbi.2020.108974] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/17/2020] [Accepted: 01/31/2020] [Indexed: 12/14/2022]
Abstract
AIM The aim of this study was the synthesis of ion doped silica-based nanoparticles and the evaluation of their toxic effect on erythrocytes. MATERIALS & METHODS Their synthesis was performed using the sol-gel method, by the progressive addition of calcium, magnesium and copper ions on pure silica nanoparticles. The toxicity evaluation was based on hemolysis, lipid peroxidation, ROS, H2O2 species and antioxidant enzyme production. RESULTS The addition of Mg and Cu in the SNs presented better hemocompatibility by protecting erythrocytes from oxidative stress. CONCLUSION Ion doping with magnesium in the investigated calcium silicate system induces a protective effect in erythrocyte membrane in compare with pure silica nanoparticles.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari 07100, Italy; Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France.
| | - Georgia K Pouroutzidou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University (ex-Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Konstantina Kazeli
- Department of Biomedical Sciences, International Hellenic University (ex-Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Christos B Lioutas
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evi Christodoulou
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Pierre Perio
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France
| | - Karine Reybier
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari 07100, Italy
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
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Shinto H, Fukasawa T, Yoshisue K, Seto H, Kawano T, Hirohashi Y. Effect of exposure temperature on the cell membrane disruption induced by amorphous silica nanoparticles in erythrocytes, lymphocytes, and malignant melanocytes. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2019.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Han HY, Cho JW, Seong E, Park EJ, Lee GH, Kim DW, Yang YS, Oh JH, Yoon S, Lee TG, Kim TW, Park EJ. Amorphous silica nanoparticle-induced pulmonary inflammatory response depends on particle size and is sex-specific in rats. Toxicol Appl Pharmacol 2020; 390:114890. [PMID: 31972177 DOI: 10.1016/j.taap.2020.114890] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 12/11/2022]
Abstract
Due to mass production and extensive use, the potential adverse health effects of amorphous silica nanoparticles (ASiNPs) have received a significant attention from the public and researchers. However, the relationship between physicochemical properties of ASiNPs and their health effects is still unclear. In this study, we manufactured two types of ASiNPs of different diameters (20 and 50 nm) and compared the toxic response induced in rats after intratracheal instillation (75, 150 or 300 μg/rat). There were no dose-related differences in mortality, body weight gain or organ weight between the groups. However both types of ASiNPs significantly decreased the proportion of neutrophils in male rats, whereas the levels of hemoglobin and hematocrit were markedly reduced only in female rats instilled with 20 nm-ASiNPs. ASiNPs-induced lung tissue damage seemed to be more evident in the 20 nm ASiNP-treated group and in female rats than male rats. Similarly, expression of caveolin-1 and matrix metalloproteinase-9 seemed to be most notably enhanced in female rats treated with 20 nm-ASiNPs. The total number of bronchial alveolar lavage cells significantly increased in rats instilled with 20 nm-ASiNPs, accompanying a decrease in the proportion of macrophages and an increase in polymorphonuclear leukocytes. Moreover, secretion of inflammatory mediators clearly increased in human bronchial epithelial cells treated with 20 nm-ASiNPs, but not in those treated with 50 nm-ASiNPs. These results suggest that pulmonary effects of ASiNPs depend on particle size. Sex-dependent differences should also be carefully considered in understanding nanomaterial-induced adverse health effects.
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Affiliation(s)
- Hyoung-Yun Han
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea; College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Jae-Woo Cho
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Eunsol Seong
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Eun-Jun Park
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Young-Su Yang
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Jung-Hwa Oh
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Seokjoo Yoon
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Tae Geol Lee
- Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Tae-Won Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Eun-Jung Park
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea.
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27
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Rubio L, Pyrgiotakis G, Beltran-Huarac J, Zhang Y, Gaurav J, Deloid G, Spyrogianni A, Sarosiek KA, Bello D, Demokritou P. Safer-by-design flame-sprayed silicon dioxide nanoparticles: the role of silanol content on ROS generation, surface activity and cytotoxicity. Part Fibre Toxicol 2019; 16:40. [PMID: 31665028 PMCID: PMC6819463 DOI: 10.1186/s12989-019-0325-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 10/04/2019] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Amorphous silica nanoparticles (SiO2 NPs) have been regarded as relatively benign nanomaterials, however, this widely held opinion has been questioned in recent years by several reports on in vitro and in vivo toxicity. Surface chemistry, more specifically the surface silanol content, has been identified as an important toxicity modulator for SiO2 NPs. Here, quantitative relationships between the silanol content on SiO2 NPs, free radical generation and toxicity have been identified, with the purpose of synthesizing safer-by-design fumed silica nanoparticles. RESULTS Consistent and statistically significant trends were seen between the total silanol content, cell membrane damage, and cell viability, but not with intracellular reactive oxygen species (ROS), in the macrophages RAW264.7. SiO2 NPs with lower total silanol content exhibited larger adverse cellular effects. The SAEC epithelial cell line did not show any sign of toxicity by any of the nanoparticles. Free radical generation and surface reactivity of these nanoparticles were also influenced by the temperature of combustion and total silanol content. CONCLUSION Surface silanol content plays an important role in cellular toxicity and surface reactivity, although it might not be the sole factor influencing fumed silica NP toxicity. It was demonstrated that synthesis conditions for SiO2 NPs influence the type and quantity of free radicals, oxidative stress, nanoparticle interaction with the biological milieu they come in contact with, and determine the specific mechanisms of toxicity. We demonstrate here that it is possible to produce much less toxic fumed silicas by modulating the synthesis conditions.
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Affiliation(s)
- Laura Rubio
- Center for Nanotechnology and Nanotoxicology, HSPH-NIEHS Nanosafety Center, Department of Environmental Health, Harvard T. H. Chan School of Public School, Harvard University, 665 Huntington, Boston, MA, 02115, USA
| | - Georgios Pyrgiotakis
- Center for Nanotechnology and Nanotoxicology, HSPH-NIEHS Nanosafety Center, Department of Environmental Health, Harvard T. H. Chan School of Public School, Harvard University, 665 Huntington, Boston, MA, 02115, USA
| | - Juan Beltran-Huarac
- Center for Nanotechnology and Nanotoxicology, HSPH-NIEHS Nanosafety Center, Department of Environmental Health, Harvard T. H. Chan School of Public School, Harvard University, 665 Huntington, Boston, MA, 02115, USA
| | - Yipei Zhang
- Department of Biomedical and Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA, 01854, USA
| | - Joshi Gaurav
- John B. Little Center for Radiation Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Glen Deloid
- Center for Nanotechnology and Nanotoxicology, HSPH-NIEHS Nanosafety Center, Department of Environmental Health, Harvard T. H. Chan School of Public School, Harvard University, 665 Huntington, Boston, MA, 02115, USA
| | - Anastasia Spyrogianni
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092, Zurich, Switzerland
| | - Kristopher A Sarosiek
- John B. Little Center for Radiation Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Dhimiter Bello
- Department of Biomedical and Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA, 01854, USA
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, HSPH-NIEHS Nanosafety Center, Department of Environmental Health, Harvard T. H. Chan School of Public School, Harvard University, 665 Huntington, Boston, MA, 02115, USA.
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Effect of interfacial serum proteins on the cell membrane disruption induced by amorphous silica nanoparticles in erythrocytes, lymphocytes, malignant melanocytes, and macrophages. Colloids Surf B Biointerfaces 2019; 181:270-277. [PMID: 31153022 DOI: 10.1016/j.colsurfb.2019.05.067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/22/2019] [Accepted: 05/26/2019] [Indexed: 11/22/2022]
Abstract
It is very important to examine carefully the potential adverse effects of engineered nanoparticles (NPs) on human health and environments. In the present study, we have investigated the impact of interfacial serum proteins on the cell membrane disruption induced by silica NPs of primary diameter of 55-68 nm in four types of cells (erythrocytes, Jurkat, B16F10, and J774.1). The silica-induced membranolysis was repressed by addition of 1-2% serum into culture media, where the adhesion amount of the FBS-coated silica NPs onto a cell surface seemed comparable with that of the bare silica NPs. The nonspecific attraction between the bare silica and J774.1 cell membrane surfaces was masked by pretreatment of the silica surface with serum albumin, whereas the serum proteins-coated silica surface exhibited the attractive interactions with the cell membrane due to specific binding between some of adsorbed proteins thereon and the membrane receptors. The difference in silica-cell interaction between the nonspecific and specific attractions would explain the reason why interfacial serum proteins reduced the membranolysis without prevention of silica NPs adhering to cell surfaces.
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Pavan C, Delle Piane M, Gullo M, Filippi F, Fubini B, Hoet P, Horwell CJ, Huaux F, Lison D, Lo Giudice C, Martra G, Montfort E, Schins R, Sulpizi M, Wegner K, Wyart-Remy M, Ziemann C, Turci F. The puzzling issue of silica toxicity: are silanols bridging the gaps between surface states and pathogenicity? Part Fibre Toxicol 2019; 16:32. [PMID: 31419990 PMCID: PMC6697921 DOI: 10.1186/s12989-019-0315-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 08/05/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Silica continues to represent an intriguing topic of fundamental and applied research across various scientific fields, from geology to physics, chemistry, cell biology, and particle toxicology. The pathogenic activity of silica is variable, depending on the physico-chemical features of the particles. In the last 50 years, crystallinity and capacity to generate free radicals have been recognized as relevant features for silica toxicity. The 'surface' also plays an important role in silica toxicity, but this term has often been used in a very general way, without defining which properties of the surface are actually driving toxicity. How the chemical features (e.g., silanols and siloxanes) and configuration of the silica surface can trigger toxic responses remains incompletely understood. MAIN BODY Recent developments in surface chemistry, cell biology and toxicology provide new avenues to improve our understanding of the molecular mechanisms of the adverse responses to silica particles. New physico-chemical methods can finely characterize and quantify silanols at the surface of silica particles. Advanced computational modelling and atomic force microscopy offer unique opportunities to explore the intimate interactions between silica surface and membrane models or cells. In recent years, interdisciplinary research, using these tools, has built increasing evidence that surface silanols are critical determinants of the interaction between silica particles and biomolecules, membranes, cell systems, or animal models. It also has become clear that silanol configuration, and eventually biological responses, can be affected by impurities within the crystal structure, or coatings covering the particle surface. The discovery of new molecular targets of crystalline as well as amorphous silica particles in the immune system and in epithelial lung cells represents new possible toxicity pathways. Cellular recognition systems that detect specific features of the surface of silica particles have been identified. CONCLUSIONS Interdisciplinary research bridging surface chemistry to toxicology is progressively solving the puzzling issue of the variable toxicity of silica. Further interdisciplinary research is ongoing to elucidate the intimate mechanisms of silica pathogenicity, to possibly mitigate or reduce surface reactivity.
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Affiliation(s)
- Cristina Pavan
- UCLouvain, Louvain centre for Toxicology and Applied Pharmacology (LTAP), Brussels, Belgium
| | - Massimo Delle Piane
- Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT), University of Bremen, Bremen, Germany
| | | | | | - Bice Fubini
- G. Scansetti Center, University of Torino, Turin, Italy
| | - Peter Hoet
- Department of Public Health and Primary Care, KU Leuven, Laboratory of Toxicology, Unit of Environment and Health, Leuven, Belgium
| | - Claire J. Horwell
- Institute of Hazard, Risk and Resilience, Department of Earth Sciences, Durham University, Durham, UK
| | - François Huaux
- UCLouvain, Louvain centre for Toxicology and Applied Pharmacology (LTAP), Brussels, Belgium
| | - Dominique Lison
- UCLouvain, Louvain centre for Toxicology and Applied Pharmacology (LTAP), Brussels, Belgium
| | - Cristina Lo Giudice
- UCLouvain, Institute of Biomolecular Science and Technology, NanoBioPhysics, Louvain-la-Neuve, Belgium
| | - Gianmario Martra
- Department of Chemistry and Nanostructured Interfaces and Surfaces –NIS Centre, University of Torino, Turin, Italy
| | - Eliseo Montfort
- Instituto de Tecnología Cerámica, Universitat Jaume I, Castellón, Spain
| | - Roel Schins
- IUF Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | | | | | - Michelle Wyart-Remy
- EUROSIL, European Association of industrial silica producers, Brussels, Belgium
| | - Christina Ziemann
- Fraunhofer Institute for Toxicology and Experimental Medicine, ITEM, Hannover, Germany
| | - Francesco Turci
- Department of Chemistry, G. Scansetti Center, University of Torino, Turin, Italy
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Leibe R, Hsiao IL, Fritsch-Decker S, Kielmeier U, Wagbo AM, Voss B, Schmidt A, Hessman SD, Duschl A, Oostingh GJ, Diabaté S, Weiss C. The protein corona suppresses the cytotoxic and pro-inflammatory response in lung epithelial cells and macrophages upon exposure to nanosilica. Arch Toxicol 2019; 93:871-885. [DOI: 10.1007/s00204-019-02422-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 02/28/2019] [Indexed: 12/01/2022]
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31
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Establishing the effects of mesoporous silica nanoparticle properties on in vivo disposition using imaging-based pharmacokinetics. Nat Commun 2018; 9:4551. [PMID: 30382084 PMCID: PMC6208419 DOI: 10.1038/s41467-018-06730-z] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/13/2018] [Indexed: 12/31/2022] Open
Abstract
The progress of nanoparticle (NP)-based drug delivery has been hindered by an inability to establish structure-activity relationships in vivo. Here, using stable, monosized, radiolabeled, mesoporous silica nanoparticles (MSNs), we apply an integrated SPECT/CT imaging and mathematical modeling approach to understand the combined effects of MSN size, surface chemistry and routes of administration on biodistribution and clearance kinetics in healthy rats. We show that increased particle size from ~32- to ~142-nm results in a monotonic decrease in systemic bioavailability, irrespective of route of administration, with corresponding accumulation in liver and spleen. Cationic MSNs with surface exposed amines (PEI) have reduced circulation, compared to MSNs of identical size and charge but with shielded amines (QA), due to rapid sequestration into liver and spleen. However, QA show greater total excretion than PEI and their size-matched neutral counterparts (TMS). Overall, we provide important predictive functional correlations to support the rational design of nanomedicines. Nanoparticle applications are limited by insufficient understanding of physiochemical properties on in vivo disposition. Here, the authors explore the influence of size, surface chemistry and administration on the biodisposition of mesoporous silica nanoparticles using image-based pharmacokinetics.
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Applications of rice protein in nanomaterials synthesis, nanocolloids of rice protein, and bioapplicability. Int J Biol Macromol 2018; 120:394-404. [PMID: 30144545 DOI: 10.1016/j.ijbiomac.2018.08.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 07/07/2018] [Accepted: 08/21/2018] [Indexed: 12/14/2022]
Abstract
Rice protein conjugated nanomaterials were synthesized and characterized by using anionic and cationic forms of rice protein. Both forms showed unique characteristic features when used in in situ reaction conditions for synthesizing the protein stabilized gold (Au) and silver (Ag) nanoparticles (NPs). Au NPs synthesis was highly facilitated than Ag NPs synthesis while the reverse was true when rice protein was simply used in the basic medium. Photophysical behavior clearly showed the contributions of both electrostatic and non-electrostatic interactions driving the rice protein surface adsorption on nanometallic surfaces. Rice protein conjugated NPs were easily transferred and extracted into the organic phase while the extraction process was related to the amount of protein coating. Under the controlled pH reaction conditions, rice protein - dye colored NPs were synthesized which were further characterized by the DLS and SDS Page analysis. Both rice protein conjugated Au/Ag NPs and rice protein NPs showed remarkable biocompatibility with blood cells. These NPs demonstrated their excellent ability to selectively extract protein fractions from complex biological fluid like serum. The results proposed significant applications of rice protein conjugated NPs in biological systems as well as bio-nanotechnology.
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Huo T, Dong F, Deng J, Zhang Q, Ye W, Zhang W, Wang P, Sun D. In vitro genotoxicity of asbestos substitutes induced by coupled stimulation of dissolved high-valence ions and oxide radicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22356-22367. [PMID: 28766145 DOI: 10.1007/s11356-017-9796-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 07/19/2017] [Indexed: 06/07/2023]
Abstract
The wide use of asbestos and its substitutes has given rise to studies on their possible harmful effects on human health and environment. However, their toxic effects remain unclear. The present study was aimed to disclose the coupled effects of dissolved high-valence ions and oxide radicals using the in vitro cytotoxicity and genotoxicity of chrysotile (CA), nano-SiO2 (NS), ceramic fiber (CF), glass fiber (GF), and rock wool (RW) on Chinese hamster lung cells V79. All samples induced cell mortality correlated well with the chemical SiO2 content of asbestos substitutes and the amount of dissolved Si. Alkali or alkaline earth metal elements relieved mortality of V79 cells; Al2O3 reinforced toxicity of materials. Asbestos substitutes generated lasting, increasing amount of acellular ·OH which formed at the fiber surface at sites with loose/unsaturated bonds, as well as by catalytic reaction through dissolved iron. Accumulated mechanical and radical stimulation induced the intracellular reactive oxygen species (ROS) elevation, morphology change, and deviating trans-membrane ion flux. The cellular ROS appeared as NS > GF > CF ≈ CA > RW, consistent with cell mortality rather than with acellular ·OH generation. Chromosomal and DNA lesions in V79 cells were not directly associated with the cellular ROS, while influenced by dissolved high-valence irons in the co-culture medium. In conclusion, ions from short-time dissolution of dust samples and the generation of extracellular ·OH presented combined effects in the elevation of intracellular ROS, which further synergistically induced cytotoxicity and genotoxicity.
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Affiliation(s)
- Tingting Huo
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
- Institute of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Jianjun Deng
- Clinical Laboratory, Mianyang 404 Hospital, Mianyang, 621010, China
- School of Public Health, Southwest Medical University, Luzhou, 646000, China
| | - Qingbi Zhang
- School of Public Health, Southwest Medical University, Luzhou, 646000, China
| | - Wei Ye
- School of Public Health, Southwest Medical University, Luzhou, 646000, China
| | - Wei Zhang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Pingping Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Dongping Sun
- Institute of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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Schneemilch M, Quirke N. Free energy of adhesion of lipid bilayers on silica surfaces. J Chem Phys 2018; 148:194704. [DOI: 10.1063/1.5028557] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Schneemilch
- Department of Chemistry, Imperial College London, London SW7 2AY, United Kingdom
| | - N. Quirke
- Department of Chemistry, Imperial College London, London SW7 2AY, United Kingdom
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Keevend K, Panzarasa G, Starsich FHL, Zeltner M, Spyrogianni A, Tsolaki E, Fortunato G, Pratsinis SE, Bertazzo S, Herrmann IK. Facile meltPEGylation of flame-made luminescent Tb3+-doped yttrium oxide particles: hemocompatibility, cellular uptake and comparison to silica. Chem Commun (Camb) 2018; 54:2914-2917. [DOI: 10.1039/c7cc09402g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
MeltPEGylation constitutes an elegant one-pot route for the efficient PEGylation of metal oxide nanoparticles with improved hemo- and cytocompatibility.
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Affiliation(s)
- Kerda Keevend
- Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa)
- St. Gallen
- Switzerland
| | - Guido Panzarasa
- Biomimetic Membranes and Textiles, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa)
- St. Gallen
- Switzerland
| | - Fabian H. L. Starsich
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich
- CH-8092 Zurich
- Switzerland
| | - Martin Zeltner
- Functional Materials Laboratory, Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich
- CH-8093 Zurich
- Switzerland
| | - Anastasia Spyrogianni
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich
- CH-8092 Zurich
- Switzerland
- Currently at Institute of Pharmaceutical Sciences
- ETH Zurich
| | - Elena Tsolaki
- Departments of Medical Physics and Biomedical Engineering, University College London (UCL), Malet Place Engineering Building
- London
- UK
| | - Giuseppino Fortunato
- Biomimetic Membranes and Textiles, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa)
- St. Gallen
- Switzerland
| | - Sotiris E. Pratsinis
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich
- CH-8092 Zurich
- Switzerland
| | - Sergio Bertazzo
- Departments of Medical Physics and Biomedical Engineering, University College London (UCL), Malet Place Engineering Building
- London
- UK
| | - Inge K. Herrmann
- Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa)
- St. Gallen
- Switzerland
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Nattrass C, Horwell CJ, Damby DE, Brown D, Stone V. The effect of aluminium and sodium impurities on the in vitro toxicity and pro-inflammatory potential of cristobalite. ENVIRONMENTAL RESEARCH 2017; 159:164-175. [PMID: 28802207 DOI: 10.1016/j.envres.2017.07.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/24/2017] [Accepted: 07/31/2017] [Indexed: 05/26/2023]
Abstract
BACKGROUND Exposure to crystalline silica (SiO2), in the form of quartz, tridymite or cristobalite, can cause respiratory diseases, such as silicosis. However, the observed toxicity and pathogenicity of crystalline silica is highly variable. This has been attributed to a number of inherent and external factors, including the presence of impurities. In cristobalite-rich dusts, substitutions of aluminium (Al) for silicon (Si) in the cristobalite structure, and impurities occluding the silica surface, have been hypothesised to decrease its toxicity. This hypothesis is tested here through the characterisation and in vitro toxicological study of synthesised cristobalite with incremental amounts of Al and sodium (Na) dopants. METHODS Samples of synthetic cristobalite with incremental amounts of Al and Na impurities, and tridymite, were produced through heating of a silica sol-gel. Samples were characterised for mineralogy, cristobalite purity and abundance, particle size, surface area and surface charge. In vitro assays assessed the ability of the samples to induce cytotoxicity and TNF-α production in J774 macrophages, and haemolysis of red blood cells. RESULTS Al-only doped or Al+Na co-doped cristobalite contained between 1 and 4 oxide wt% Al and Na within its structure. Co-doped samples also contained Al- and Na-rich phases, such as albite. Doping reduced cytotoxicity to J774 macrophages and haemolytic capacity compared to non-doped samples. Al-only doping was more effective at decreasing cristobalite reactivity than Al+Na co-doping. The reduction in the reactivity of cristobalite is attributed to both structural impurities and a lower abundance of crystalline silica in doped samples. Neither non-doped nor doped crystalline silica induced production of the pro-inflammatory cytokine TNF-α in J774 macrophages. CONCLUSIONS Impurities can reduce the toxic potential of cristobalite and may help explain the low reactivity of some cristobalite-rich dusts. Whilst further work is required to determine if these effects translate to altered pathogenesis, the results have potential implications for the regulation of crystalline silica exposures.
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Affiliation(s)
- C Nattrass
- Institute of Hazard, Risk & Resilience, Department of Earth Sciences, Durham University, Durham DH1 3LE, UK.
| | - C J Horwell
- Institute of Hazard, Risk & Resilience, Department of Earth Sciences, Durham University, Durham DH1 3LE, UK.
| | - D E Damby
- Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universitaet Muenchen, Munich 80333, Germany; United States Geological Survey, Menlo Park, California 94025, USA.
| | - D Brown
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - V Stone
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
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Wagner A, White AP, Stueckle TA, Banerjee D, Sierros KA, Rojanasakul Y, Agarwal S, Gupta RK, Dinu CZ. Early Assessment and Correlations of Nanoclay's Toxicity to Their Physical and Chemical Properties. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32323-32335. [PMID: 28799741 PMCID: PMC6390283 DOI: 10.1021/acsami.7b06657] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Nanoclays' functionalization with organic modifiers increases their individual barrier properties, thermal stability, and mechanical properties and allows for ease of implementation in food packaging materials or medical devices. Previous reports have shown that, while organic modifiers integration between the layered mineral silicates leads to nanoclays with different degrees of hydrophobicity that become easily miscible in polymers, they could also pose possible effects at inhalation or ingestion routes of exposure. Through a systematic analysis of three organically modified and one pristine nanoclay, we aimed to relate for the first time the physical and chemical characteristics, determined via microscopical and spectroscopical techniques, with the potential of these nanoclays to induce deleterious effects in in vitro cellular systems, i.e. in immortalized and primary human lung epithelial cell lines. To derive information on how functionalization could lead to toxicological profiles throughout nanoclays' life cycle, both as-received and thermally degraded nanoclays were evaluated. Our analysis showed that the organic modifiers chemical composition influenced both the physical and chemical characteristics of the nanoclays as well as their toxicity. Overall, when cells were exposed to nanoclays with organic modifiers containing bioreactive groups, they displayed lower cellular numbers as well more elongated cellular morphologies relative to the pristine nanoclay and the nanoclay containing a modifier with long carbon chains. Additionally, thermal degradation caused loss of the organic modifiers as well as changes in size and shape of the nanoclays, which led to changes in toxicity upon exposure to our model cellular systems. Our study provides insight into the synergistic effects of chemical composition, size, and shape of the nanoclays and their toxicological profiles in conditions that mimic exposure in manufacturing and disposal environments, respectively, and can help aid in safe-by-design manufacturing of nanoclays with user-controlled functionalization and lower toxicity levels when food packaging applications are considered.
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Affiliation(s)
- Alixandra Wagner
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Andrew P. White
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Todd A. Stueckle
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Derrick Banerjee
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Konstantinos A. Sierros
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Yon Rojanasakul
- Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown WV, 26506, USA
| | - Sushant Agarwal
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Rakesh K. Gupta
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Cerasela Zoica Dinu
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
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Martinez DS, Damasceno JPV, Franqui LS, Bettini J, Mazali IO, Strauss M. Structural aspects of graphitic carbon modified SBA-15 mesoporous silica and biological interactions with red blood cells and plasma proteins. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:141-150. [DOI: 10.1016/j.msec.2017.03.298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/27/2017] [Accepted: 03/31/2017] [Indexed: 01/12/2023]
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Spyrogianni A, Herrmann IK, Keevend K, Pratsinis SE, Wegner K. The silanol content and in vitro cytolytic activity of flame-made silica. J Colloid Interface Sci 2017; 507:95-106. [PMID: 28780339 DOI: 10.1016/j.jcis.2017.07.096] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 02/06/2023]
Abstract
HYPOTHESIS The surface chemistry of synthetic amorphous silicas is essential for their applicational performance and for understanding their interactions with biological matter. Synthesis of silica by flame spray pyrolysis (FSP) allows to control the content and type of hydroxyl groups which also affects the cytolytic activity. EXPERIMENTS By controlling the FSP process variables, silica nanoparticles with the same specific surface area but different surface chemistry and content of internal silanols are prepared by combustion of hexamethyldisiloxane sprays, as characterized by Raman and infrared spectroscopy, thermogravimetric analysis, and titration with lithium alanate. Cytolytic activity is assessed in terms of membrane damage in human blood monocytes in vitro. FINDINGS Unlike commercial fumed silica, FSP-made silicas contain a significant amount of internal silanol groups and a high surface hydroxyl density, up to ∼8OH/nm2, similar to silicas made by wet-chemistry. Increasing the residence time of particles at high temperature during their synthesis reduces the internal and surface hydroxyl content and increases the relative amount of isolated silanols. This suggests incomplete oxidation of the silica matrix especially in short and "cold" flames and indicates that the silica particle formation pathway involves Si(OH)4. The surface chemistry differences translate into lower cytolytic activity for "cold-" than "hot-flame" silicas.
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Affiliation(s)
- Anastasia Spyrogianni
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland.
| | - Inge K Herrmann
- Particles-Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland.
| | - Kerda Keevend
- Particles-Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland.
| | - Sotiris E Pratsinis
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland.
| | - Karsten Wegner
- Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland; ParteQ GmbH, Sebastianstrasse 1, D-76456 Kuppenheim, Germany.
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Ζ potential evidences silanol heterogeneity induced by metal contaminants at the quartz surface: Implications in membrane damage. Colloids Surf B Biointerfaces 2017. [PMID: 28646781 DOI: 10.1016/j.colsurfb.2017.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Among the physico-chemical features responsible for the so-called "variability of quartz hazard", a key role has been assigned to the silica surface charge, evaluated by means of ζ potential measurement. The ζ potential of silica describes the protonation state of silanols which, in turn, determine interactions with cell membranes. To gain a molecular understanding of the role of silanols in silica pathogenicity, we conducted a systematic investigation of the variation of the ζ potential as a function of pH (ζ plot titration curve) on a large set of respirable quartz particles with different levels of metal contaminants. The membranolytic activity of the particles on red blood cells, used as a readout of pathogenic activity, was assessed in parallel. Pure quartz surfaces showed sigmoid-shaped ζ plots suggesting the presence of silanol families with similar acidity, whereas contaminated dusts exhibited convex-shaped ζ plots, indicating a higher silanol heterogeneity on contaminated surfaces with respect to the pure ones. The quartz particles with a higher surface heterogeneity related to metal contamination showed a higher membranolytic activity. By removing structural defects and chemical heterogeneity, the ζ plot shifted towards the typical shape of pure quartz and the membranolytic activity was reduced. We conclude that the ζ plot is a useful readout to measure the acid-base behavior of quartz surfaces and to describe the chemical heterogeneity of quartz silanols. Surface heterogeneity, here induced by metal contamination, is proposed as the main cause of quartz membranolytic activity, further supporting the hypothesis that surface silanol disorganization determines silica pathogenicity.
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Le Blond JS, Baxter PJ, Bello D, Raftis J, Molla YB, Cuadros J, Davey G. Haemolytic activity of soil from areas of varying podoconiosis endemicity in Ethiopia. PLoS One 2017; 12:e0177219. [PMID: 28493920 PMCID: PMC5426718 DOI: 10.1371/journal.pone.0177219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 04/24/2017] [Indexed: 02/05/2023] Open
Abstract
Background Podoconiosis, non-filarial elephantiasis, is a non-infectious disease found in tropical regions such as Ethiopia, localized in highland areas with volcanic soils cultivated by barefoot subsistence farmers. It is thought that soil particles can pass through the soles of the feet and taken up by the lymphatic system, leading to the characteristic chronic oedema of the lower legs that becomes disfiguring and disabling over time. Methods The close association of the disease with volcanic soils led us to investigate the characteristics of soil samples in an endemic area in Ethiopia to identify the potential causal constituents. We used the in vitro haemolysis assay and compared haemolytic activity (HA) with soil samples collected in a non-endemic region of the same area in Ethiopia. We included soil samples that had been previously characterized, in addition we present other data describing the characteristics of the soil and include pure phase mineral standards as comparisons. Results The bulk chemical composition of the soils were statistically significantly different between the podoconiosis-endemic and non-endemic areas, with the exception of CaO and Cr. Likewise, the soil mineralogy was statistically significant for iron oxide, feldspars, mica and chlorite. Smectite and kaolinite clays were widely present and elicited a strong HA, as did quartz, in comparison to other mineral phases tested, although no strong difference was found in HA between soils from the two areas. The relationship was further investigated with principle component analysis (PCA), which showed that a combination of an increase in Y, Zr and Al2O3, and a concurrent increase Fe2O3, TiO2, MnO and Ba in the soils increased HA. Conclusion The mineralogy and chemistry of the soils influenced the HA, although the interplay between the components is complex. Further research should consider the variable biopersistance, hygroscopicity and hardness of the minerals and further characterize the nano-scale particles.
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Affiliation(s)
- Jennifer S. Le Blond
- Department of Earth Sciences, Imperial College London, London, United Kingdom
- Core Research Labs, Natural History Museum, London, United Kingdom
- * E-mail:
| | - Peter J. Baxter
- Institute of Public Health, University of Cambridge, Cambridge, United Kingdom
| | - Dhimiter Bello
- Department of Work Environment, University of Massachusetts Lowell, MA, United States of America
| | - Jennifer Raftis
- The Queens Medical Research Institute, University of Edinburgh, Little France, Edinburgh, United Kingdom
| | - Yordanos B. Molla
- Department of Earth Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Wellcome Trust Centre for Global Health Research, Brighton and Sussex Medical School, University of Sussex, Brighton, East Sussex United Kingdom
| | - Javier Cuadros
- Department of Earth Sciences, Natural History Museum, London, United Kingdom
| | - Gail Davey
- Wellcome Trust Centre for Global Health Research, Brighton and Sussex Medical School, University of Sussex, Brighton, East Sussex United Kingdom
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Breznan D, Das DD, O'Brien JS, MacKinnon-Roy C, Nimesh S, Vuong NQ, Bernatchez S, DeSilva N, Hill M, Kumarathasan P, Vincent R. Differential cytotoxic and inflammatory potency of amorphous silicon dioxide nanoparticles of similar size in multiple cell lines. Nanotoxicology 2017; 11:223-235. [PMID: 28142331 DOI: 10.1080/17435390.2017.1287313] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The likelihood of environmental and health impacts of silicon dioxide nanoparticles (SiNPs) has risen, due to their increased use in products and applications. The biological potency of a set of similarly-sized amorphous SiNPs was investigated in a variety of cells to examine the influence of physico-chemical and biological factors on their toxicity. Cellular LDH and ATP, BrdU incorporation, resazurin reduction and cytokine release were measured in human epithelial A549, human THP-1 and mouse J774A.1 macrophage cells exposed for 24 h to suspensions of 5-15, 10-20 and 12 nm SiNPs and reference particles. The SiNPs were characterized in dry state and in suspension to determine their physico-chemical properties. The dose-response data were simplified into particle potency estimates to facilitate the comparison of multiple endpoints of biological effects in cells. Mouse macrophages were the most sensitive to SiNP exposures. Cytotoxicity of the individual cell lines was correlated while the cytokine responses differed, supported by cell type-specific differences in inflammation-associated pathways. SiNP (12 nm), the most cytotoxic and inflammogenic nanoparticle had the highest surface acidity, dry-state agglomerate size, the lowest trace metal and organics content, the smallest surface area and agglomerate size in suspension. Particle surface acidity appeared to be the most significant determinant of the overall biological activity of this set of nanoparticles. Combined with the nanoparticle characterization, integration of the biological potency estimates enabled a comprehensive determination of the cellular reactivity of the SiNPs. The approach shows promise as a useful tool for first-tier screening of SiNP toxicity.
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Affiliation(s)
- Dalibor Breznan
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Dharani D Das
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Julie S O'Brien
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Christine MacKinnon-Roy
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Surendra Nimesh
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Ngoc Q Vuong
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Stéphane Bernatchez
- b New Substances Assessment and Control Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Nimal DeSilva
- c Department of Earth and Environmental Sciences , University of Ottawa , Ottawa , Canada
| | - Myriam Hill
- b New Substances Assessment and Control Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Prem Kumarathasan
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Renaud Vincent
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
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Marquardt C, Fritsch-Decker S, Al-Rawi M, Diabaté S, Weiss C. Autophagy induced by silica nanoparticles protects RAW264.7 macrophages from cell death. Toxicology 2017; 379:40-47. [PMID: 28161448 DOI: 10.1016/j.tox.2017.01.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/20/2017] [Accepted: 01/30/2017] [Indexed: 10/20/2022]
Abstract
Although the technological and economic benefits of engineered nanomaterials are obvious, concerns have been raised about adverse effects if such material is inhaled, ingested, applied to the skin or even released into the environment. Here we studied the cytotoxic effects of the most abundant nanomaterial, silica nanoparticles (SiO2-NPs), in murine RAW264.7 macrophages. SiO2-NPs dose-dependently induce membrane leakage and cell death without obvious involvement of reactive oxygen species. Interestingly, at low concentrations SiO2-NPs trigger autophagy, evidenced by morphological and biochemical hallmarks such as autophagolysosomes or increased levels of LC3-II, which serves to protect cells from cytotoxicity. Hence SiO2-NPs initiate an adaptive stress response which dependent on dose serve to balance survival and death and ultimately dictates the cellular fate.
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Affiliation(s)
- Clarissa Marquardt
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
| | - Susanne Fritsch-Decker
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
| | - Marco Al-Rawi
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
| | - Silvia Diabaté
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
| | - Carsten Weiss
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
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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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Kettiger H, Québatte G, Perrone B, Huwyler J. Interactions between silica nanoparticles and phospholipid membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2163-2170. [DOI: 10.1016/j.bbamem.2016.06.023] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 06/17/2016] [Accepted: 06/23/2016] [Indexed: 12/11/2022]
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The complex cascade of cellular events governing inflammasome activation and IL-1β processing in response to inhaled particles. Part Fibre Toxicol 2016; 13:40. [PMID: 27519871 PMCID: PMC4983011 DOI: 10.1186/s12989-016-0150-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 07/12/2016] [Indexed: 01/05/2023] Open
Abstract
The innate immune system is the first line of defense against inhaled particles. Macrophages serve important roles in particle clearance and inflammatory reactions. Following recognition and internalization by phagocytes, particles are taken up in vesicular phagolysosomes. Intracellular phagosomal leakage, redox unbalance and ionic movements induced by toxic particles result in pro-IL-1β expression, inflammasome complex engagement, caspase-1 activation, pro-IL-1β cleavage, biologically-active IL-1β release and finally inflammatory cell death termed pyroptosis. In this review, we summarize the emerging signals and pathways involved in the expression, maturation and secretion of IL-1β during these responses to particles. We also highlight physicochemical characteristics of particles (size, surface and shape) which determine their capacity to induce inflammasome activation and IL-1β processing.
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Turci F, Pavan C, Leinardi R, Tomatis M, Pastero L, Garry D, Anguissola S, Lison D, Fubini B. Revisiting the paradigm of silica pathogenicity with synthetic quartz crystals: the role of crystallinity and surface disorder. Part Fibre Toxicol 2016; 13:32. [PMID: 27286702 PMCID: PMC4902968 DOI: 10.1186/s12989-016-0136-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/05/2016] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Exposure to some - but not all - quartz particles is associated to silicosis, lung cancer and autoimmune diseases. What imparts pathogenicity to any single quartz source is however still unclear. Crystallinity and various surface features are implied in toxicity. Quartz dusts used so far in particle toxicology have been obtained by grinding rocks containing natural quartz, a process which affects crystallinity and yields dusts with variable surface states. To clarify the role of crystallinity in quartz pathogenicity we have grown intact quartz crystals in respirable size. METHODS Quartz crystals were grown and compared with a fractured specimen obtained by grinding the largest synthetic crystals and a mineral quartz (positive control). The key physico-chemical features relevant to particle toxicity - particle size distribution, micromorphology, crystallinity, surface charge, cell-free oxidative potential - were evaluated. Membranolysis was assessed on biological and artificial membranes. Endpoints of cellular stress were evaluated on RAW 264.7 murine macrophages by High Content Analysis after ascertaining cellular uptake by bio-TEM imaging of quartz-exposed cells. RESULTS Quartz crystals were grown in the submicron (n-Qz-syn) or micron (μ-Qz-syn) range by modulating the synthetic procedure. Independently from size as-grown quartz crystals with regular intact faces did not elicit cellular toxicity and lysosomal stress on RAW 264.7 macrophages, and were non-membranolytic on liposome and red blood cells. When fractured, synthetic quartz (μ-Qz-syn-f) attained particle morphology and size close to the mineral quartz dust (Qz-f, positive control) and similarly induced cellular toxicity and membranolysis. Fracturing imparted a higher heterogeneity of silanol acidic sites and radical species at the quartz surface. CONCLUSIONS Our data support the hypothesis that the biological activity of quartz dust is not due to crystallinity but to crystal fragmentation, when conchoidal fractures are formed. Besides radical generation, fracturing upsets the expected long-range order of non-radical surface moieties - silanols, silanolates, siloxanes - which disrupt membranes and induce cellular toxicity, both outcomes associated to the inflammatory response to quartz.
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Affiliation(s)
- Francesco Turci
- Department of Chemistry, University of Torino, Via P. Giuria 7, Turin, 10125, Italy.
- "G. Scansetti" Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 7, Turin, 10125, Italy.
| | - Cristina Pavan
- Department of Chemistry, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
- "G. Scansetti" Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
| | - Riccardo Leinardi
- Department of Chemistry, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
- "G. Scansetti" Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
| | - Maura Tomatis
- Department of Chemistry, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
- "G. Scansetti" Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
| | - Linda Pastero
- "G. Scansetti" Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
- Department of Earth Sciences, University of Torino, Via V. Caluso 35, Turin, 10125, Italy
| | - David Garry
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin, Belfield, Ireland
| | - Sergio Anguissola
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin, Belfield, Ireland
| | - Dominique Lison
- Louvain centre for Toxicology and Applied Pharmacology (LTAP), Université catholique de Louvain, Avenue E. Mounier 52 - bte B1.52.12, Brussels, 1200, Belgium
| | - Bice Fubini
- Department of Chemistry, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
- "G. Scansetti" Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates, University of Torino, Via P. Giuria 7, Turin, 10125, Italy
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Pavan C, Polimeni M, Tomatis M, Corazzari I, Turci F, Ghigo D, Fubini B. Editor's Highlight: Abrasion of Artificial Stones as a New Cause of an Ancient Disease. Physicochemical Features and Cellular Responses. Toxicol Sci 2016; 153:4-17. [DOI: 10.1093/toxsci/kfw101] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Abstract
Titanium dioxide (TiO2) nanofibres are a novel fibrous nanomaterial with increasing applications in a variety of fields. While the biological effects of TiO2 nanoparticles have been extensively studied, the toxicological characterization of TiO2 nanofibres is far from being complete. In this study, we evaluated the toxicity of commercially available anatase TiO2 nanofibres using TiO2 nanoparticles (NP) and crocidolite asbestos as non-fibrous or fibrous benchmark materials. The evaluated endpoints were cell viability, haemolysis, macrophage activation, trans-epithelial electrical resistance (an indicator of the epithelial barrier competence), ROS production and oxidative stress as well as the morphology of exposed cells. The results showed that TiO2 nanofibres caused a cell-specific, dose-dependent decrease of cell viability, with larger effects on alveolar epithelial cells than on macrophages. The observed effects were comparable to those of crocidolite, while TiO2 NP did not decrease cell viability. TiO2 nanofibres were also found endowed with a marked haemolytic activity, at levels significantly higher than those observed with TiO2 nanoparticles or crocidolite. Moreover, TiO2 nanofibres and crocidolite, but not TiO2 nanoparticles, caused a significant decrease of the trans-epithelial electrical resistance of airway cell monolayers. SEM images demonstrated that the interaction with nanofibres and crocidolite caused cell shape perturbation with the longest fibres incompletely or not phagocytosed. The expression of several pro-inflammatory markers, such as NO production and the induction of Nos2 and Ptgs2, was significantly increased by TiO2 nanofibres, as well as by TiO2 nanoparticles and crocidolite. This study indicates that TiO2 nanofibres had significant toxic effects and, for most endpoints with the exception of pro-inflammatory changes, are more bio-active than TiO2 nanoparticles, showing the relevance of shape in determining the toxicity of nanomaterials. Given that several toxic effects of TiO2 nanofibres appear comparable to those observed with crocidolite, the possibility that they exert length dependent toxicity in vivo seems worthy of further investigation.
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Wang Z, Zhu W, Qiu Y, Yi X, von dem Bussche A, Kane A, Gao H, Koski K, Hurt R. Biological and environmental interactions of emerging two-dimensional nanomaterials. Chem Soc Rev 2016; 45:1750-80. [PMID: 26923057 PMCID: PMC4820079 DOI: 10.1039/c5cs00914f] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two-dimensional materials have become a major focus in materials chemistry research worldwide with substantial efforts centered on synthesis, property characterization, and technological application. These high-aspect ratio sheet-like solids come in a wide array of chemical compositions, crystal phases, and physical forms, and are anticipated to enable a host of future technologies in areas that include electronics, sensors, coatings, barriers, energy storage and conversion, and biomedicine. A parallel effort has begun to understand the biological and environmental interactions of synthetic nanosheets, both to enable the biomedical developments and to ensure human health and safety for all application fields. This review covers the most recent literature on the biological responses to 2D materials and also draws from older literature on natural lamellar minerals to provide additional insight into the essential chemical behaviors. The article proposes a framework for more systematic investigation of biological behavior in the future, rooted in fundamental materials chemistry and physics. That framework considers three fundamental interaction modes: (i) chemical interactions and phase transformations, (ii) electronic and surface redox interactions, and (iii) physical and mechanical interactions that are unique to near-atomically-thin, high-aspect-ratio solids. Two-dimensional materials are shown to exhibit a wide range of behaviors, which reflect the diversity in their chemical compositions, and many are expected to undergo reactive dissolution processes that will be key to understanding their behaviors and interpreting biological response data. The review concludes with a series of recommendations for high-priority research subtopics at the "bio-nanosheet" interface that we hope will enable safe and successful development of technologies related to two-dimensional nanomaterials.
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Affiliation(s)
| | | | | | - Xin Yi
- School of Engineering, USA.
| | | | - Agnes Kane
- Department of Pathology and Laboratory Medicine, USA. and Institute for Molecular and Nanoscale Innovation, USA
| | | | - Kristie Koski
- Department of Chemistry, Brown University, Providence, RI 02912, USA.
| | - Robert Hurt
- School of Engineering, USA. and Institute for Molecular and Nanoscale Innovation, USA
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