1
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England E, Morris JW, Bussy C, Hancox JC, Shiels HA. The key characteristics of cardiotoxicity for the pervasive pollutant phenanthrene. J Hazard Mater 2024; 469:133853. [PMID: 38503207 DOI: 10.1016/j.jhazmat.2024.133853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
The key characteristic (KCs) framework has been used previously to assess the carcinogenicity and cardiotoxicity of various chemical and pharmacological agents. Here, the 12 KCs of cardiotoxicity are used to evaluate the previously reported cardiotoxicity of phenanthrene (Phe), a tricyclic polycyclic aromatic hydrocarbon (PAH), and major component of fossil fuel-derived air pollution. Phe is a semi-volatile pollutant existing in both the gas phase and particle phase through adsorption onto or into particulate matter (PM). Phe can translocate across the airways and gastrointestinal tract into the systemic circulation, enabling body-wide effects. Our evaluation based on a comprehensive literature review, indicates Phe exhibits 11 of the 12 KCs for cardiotoxicity. These include adverse effects on cardiac electromechanical performance, the vasculature and endothelium, immunomodulation and oxidative stress, and neuronal and endocrine control. Environmental agents that have similarly damaging effects on the cardiovascular system are heavily regulated and monitored, yet globally there is no air quality regulation specific for PAHs like Phe. Environmental monitoring of Phe is not the international standard with benzo[a]pyrene being frequently used as a proxy despite the two PAH species exhibiting significant differences in sources, concentration variations and toxic effects. The evidence summarised in this evaluation highlights the need to move away from proxied PAH measurements and develop a monitoring network capable of measuring Phe concentration. It also stresses the need to raise awareness amongst the medical community of the potential cardiovascular impact of PAH exposure. This will allow the production of mitigation strategies and possibly the development of new policies for the protection of the societal groups most vulnerable to cardiovascular disease.
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Affiliation(s)
- E England
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.
| | - J W Morris
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.
| | - C Bussy
- Division of Immunology, Immunity to Infection, and Respiratory Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, UK
| | - J C Hancox
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
| | - H A Shiels
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.
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2
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Lin H, Buerki-Thurnherr T, Kaur J, Wick P, Pelin M, Tubaro A, Carniel FC, Tretiach M, Flahaut E, Iglesias D, Vázquez E, Cellot G, Ballerini L, Castagnola V, Benfenati F, Armirotti A, Sallustrau A, Taran F, Keck M, Bussy C, Vranic S, Kostarelos K, Connolly M, Navas JM, Mouchet F, Gauthier L, Baker J, Suarez-Merino B, Kanerva T, Prato M, Fadeel B, Bianco A. Environmental and Health Impacts of Graphene and Other Two-Dimensional Materials: A Graphene Flagship Perspective. ACS Nano 2024; 18:6038-6094. [PMID: 38350010 PMCID: PMC10906101 DOI: 10.1021/acsnano.3c09699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
Two-dimensional (2D) materials have attracted tremendous interest ever since the isolation of atomically thin sheets of graphene in 2004 due to the specific and versatile properties of these materials. However, the increasing production and use of 2D materials necessitate a thorough evaluation of the potential impact on human health and the environment. Furthermore, harmonized test protocols are needed with which to assess the safety of 2D materials. The Graphene Flagship project (2013-2023), funded by the European Commission, addressed the identification of the possible hazard of graphene-based materials as well as emerging 2D materials including transition metal dichalcogenides, hexagonal boron nitride, and others. Additionally, so-called green chemistry approaches were explored to achieve the goal of a safe and sustainable production and use of this fascinating family of nanomaterials. The present review provides a compact survey of the findings and the lessons learned in the Graphene Flagship.
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Affiliation(s)
- Hazel Lin
- CNRS,
UPR3572, Immunology, Immunopathology and Therapeutic Chemistry, ISIS, University of Strasbourg, 67000 Strasbourg, France
| | - Tina Buerki-Thurnherr
- Empa,
Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Jasreen Kaur
- Nanosafety
& Nanomedicine Laboratory, Institute
of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Peter Wick
- Empa,
Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Marco Pelin
- Department
of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Aurelia Tubaro
- Department
of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | | | - Mauro Tretiach
- Department
of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Emmanuel Flahaut
- CIRIMAT,
Université de Toulouse, CNRS, INPT,
UPS, 31062 Toulouse CEDEX 9, France
| | - Daniel Iglesias
- Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
- Instituto
Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
| | - Ester Vázquez
- Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
- Instituto
Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
| | - Giada Cellot
- International
School for Advanced Studies (SISSA), 34136 Trieste, Italy
| | - Laura Ballerini
- International
School for Advanced Studies (SISSA), 34136 Trieste, Italy
| | - Valentina Castagnola
- Center
for
Synaptic Neuroscience and Technology, Istituto
Italiano di Tecnologia, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Fabio Benfenati
- Center
for
Synaptic Neuroscience and Technology, Istituto
Italiano di Tecnologia, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Andrea Armirotti
- Analytical
Chemistry Facility, Istituto Italiano di
Tecnologia, 16163 Genoa, Italy
| | - Antoine Sallustrau
- Département
Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SIMoS, Gif-sur-Yvette 91191, France
| | - Frédéric Taran
- Département
Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SIMoS, Gif-sur-Yvette 91191, France
| | - Mathilde Keck
- Département
Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SIMoS, Gif-sur-Yvette 91191, France
| | - Cyrill Bussy
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, University of Manchester,
Manchester Academic Health Science Centre, National Graphene Institute, Manchester M13 9PT, United
Kingdom
| | - Sandra Vranic
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, University of Manchester,
Manchester Academic Health Science Centre, National Graphene Institute, Manchester M13 9PT, United
Kingdom
| | - Kostas Kostarelos
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, University of Manchester,
Manchester Academic Health Science Centre, National Graphene Institute, Manchester M13 9PT, United
Kingdom
| | - Mona Connolly
- Instituto Nacional de Investigación y Tecnología
Agraria
y Alimentaria (INIA), CSIC, Carretera de la Coruña Km 7,5, E-28040 Madrid, Spain
| | - José Maria Navas
- Instituto Nacional de Investigación y Tecnología
Agraria
y Alimentaria (INIA), CSIC, Carretera de la Coruña Km 7,5, E-28040 Madrid, Spain
| | - Florence Mouchet
- Laboratoire
Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, 31000 Toulouse, France
| | - Laury Gauthier
- Laboratoire
Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, 31000 Toulouse, France
| | - James Baker
- TEMAS Solutions GmbH, 5212 Hausen, Switzerland
| | | | - Tomi Kanerva
- Finnish Institute of Occupational Health, 00250 Helsinki, Finland
| | - Maurizio Prato
- Center
for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy
| | - Bengt Fadeel
- Nanosafety
& Nanomedicine Laboratory, Institute
of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Alberto Bianco
- CNRS,
UPR3572, Immunology, Immunopathology and Therapeutic Chemistry, ISIS, University of Strasbourg, 67000 Strasbourg, France
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3
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Andrews JPM, Joshi SS, Tzolos E, Syed MB, Cuthbert H, Crica LE, Lozano N, Okwelogu E, Raftis JB, Bruce L, Poland CA, Duffin R, Fokkens PHB, Boere AJF, Leseman DLAC, Megson IL, Whitfield PD, Ziegler K, Tammireddy S, Hadjidemetriou M, Bussy C, Cassee FR, Newby DE, Kostarelos K, Miller MR. First-in-human controlled inhalation of thin graphene oxide nanosheets to study acute cardiorespiratory responses. Nat Nanotechnol 2024:10.1038/s41565-023-01572-3. [PMID: 38366225 DOI: 10.1038/s41565-023-01572-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 11/09/2023] [Indexed: 02/18/2024]
Abstract
Graphene oxide nanomaterials are being developed for wide-ranging applications but are associated with potential safety concerns for human health. We conducted a double-blind randomized controlled study to determine how the inhalation of graphene oxide nanosheets affects acute pulmonary and cardiovascular function. Small and ultrasmall graphene oxide nanosheets at a concentration of 200 μg m-3 or filtered air were inhaled for 2 h by 14 young healthy volunteers in repeated visits. Overall, graphene oxide nanosheet exposure was well tolerated with no adverse effects. Heart rate, blood pressure, lung function and inflammatory markers were unaffected irrespective of graphene oxide particle size. Highly enriched blood proteomics analysis revealed very few differential plasma proteins and thrombus formation was mildly increased in an ex vivo model of arterial injury. Overall, acute inhalation of highly purified and thin nanometre-sized graphene oxide nanosheets was not associated with overt detrimental effects in healthy humans. These findings demonstrate the feasibility of carefully controlled human exposures at a clinical setting for risk assessment of graphene oxide, and lay the foundations for investigating the effects of other two-dimensional nanomaterials in humans. Clinicaltrials.gov ref: NCT03659864.
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Affiliation(s)
- Jack P M Andrews
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
- The Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Shruti S Joshi
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Evangelos Tzolos
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Maaz B Syed
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | | | - Livia E Crica
- Nanomedicine Lab, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, UK
- National Graphene Institute, The University of Manchester, Manchester, UK
| | - Neus Lozano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Barcelona, Spain
| | - Emmanuel Okwelogu
- Nanomedicine Lab, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, UK
| | - Jennifer B Raftis
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Lorraine Bruce
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Craig A Poland
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Rodger Duffin
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Paul H B Fokkens
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - A John F Boere
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Daan L A C Leseman
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Ian L Megson
- Division of Biomedical Sciences, University of the Highlands and Islands, Inverness, UK
| | - Phil D Whitfield
- Division of Biomedical Sciences, University of the Highlands and Islands, Inverness, UK
| | - Kerstin Ziegler
- Division of Biomedical Sciences, University of the Highlands and Islands, Inverness, UK
| | - Seshu Tammireddy
- Division of Biomedical Sciences, University of the Highlands and Islands, Inverness, UK
| | - Marilena Hadjidemetriou
- Nanomedicine Lab, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, UK
| | - Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, UK
- National Graphene Institute, The University of Manchester, Manchester, UK
- Lydia Becker Institute of Immunology and Inflammation, The University of Manchester, Manchester, UK
- Thomas Ashton Institute for Risk and Regulatory Research, The University of Manchester, Manchester, UK
| | - Flemming R Cassee
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - David E Newby
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, UK.
- National Graphene Institute, The University of Manchester, Manchester, UK.
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Barcelona, Spain.
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, Barcelona, Spain.
| | - Mark R Miller
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK.
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4
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Visani de Luna LA, Loret T, He Y, Legnani M, Lin H, Galibert AM, Fordham A, Holme S, Del Rio Castillo AE, Bonaccorso F, Bianco A, Flahaut E, Kostarelos K, Bussy C. Pulmonary Toxicity of Boron Nitride Nanomaterials Is Aspect Ratio Dependent. ACS Nano 2023; 17:24919-24935. [PMID: 38051272 PMCID: PMC10753895 DOI: 10.1021/acsnano.3c06599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/26/2023] [Accepted: 12/01/2023] [Indexed: 12/07/2023]
Abstract
Boron nitride (BN) nanomaterials have drawn a lot of interest in the material science community. However, extensive research is still needed to thoroughly analyze their safety profiles. Herein, we investigated the pulmonary impact and clearance of two-dimensional hexagonal boron nitride (h-BN) nanosheets and boron nitride nanotubes (BNNTs) in mice. Animals were exposed by single oropharyngeal aspiration to h-BN or BNNTs. On days 1, 7, and 28, bronchoalveolar lavage (BAL) fluids and lungs were collected. On one hand, adverse effects on lungs were evaluated using various approaches (e.g., immune response, histopathology, tissue remodeling, and genotoxicity). On the other hand, material deposition and clearance from the lungs were assessed. Two-dimensional h-BN did not cause any significant immune response or lung damage, although the presence of materials was confirmed by Raman spectroscopy. In addition, the low aspect ratio h-BN nanosheets were internalized rapidly by phagocytic cells present in alveoli, resulting in efficient clearance from the lungs. In contrast, high aspect ratio BNNTs caused a strong and long-lasting inflammatory response, characterized by sustained inflammation up to 28 days after exposure and the activation of both innate and adaptive immunity. Moreover, the presence of granulomatous structures and an indication of ongoing fibrosis as well as DNA damage in the lung parenchyma were evidenced with these materials. Concurrently, BNNTs were identified in lung sections for up to 28 days, suggesting long-term biopersistence, as previously demonstrated for other high aspect ratio nanomaterials with poor lung clearance such as multiwalled carbon nanotubes (MWCNTs). Overall, we reveal the safer toxicological profile of BN-based two-dimensional nanosheets in comparison to their nanotube counterparts. We also report strong similarities between BNNTs and MWCNTs in lung response, emphasizing their high aspect ratio as a major driver of their toxicity.
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Affiliation(s)
- Luis Augusto Visani de Luna
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science
Centre, Manchester M13 9PT, U.K.
- National
Graphene Institute, The University of Manchester, Manchester, M13 9PL, U.K.
- Lydia
Becker Institute of Immunology and Inflammation, Faculty of Biology,
Medicine and Health, The University of Manchester,
Manchester Academic Health Science Centre, Manchester M13 9PT, U.K.
| | - Thomas Loret
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science
Centre, Manchester M13 9PT, U.K.
- National
Graphene Institute, The University of Manchester, Manchester, M13 9PL, U.K.
- Lydia
Becker Institute of Immunology and Inflammation, Faculty of Biology,
Medicine and Health, The University of Manchester,
Manchester Academic Health Science Centre, Manchester M13 9PT, U.K.
| | - Yilin He
- CNRS,
Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University
of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Morgan Legnani
- CIRIMAT,
Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université
de Toulouse, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
| | - Hazel Lin
- CNRS,
Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University
of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Anne Marie Galibert
- CIRIMAT,
Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université
de Toulouse, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
| | - Alexander Fordham
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science
Centre, Manchester M13 9PT, U.K.
- National
Graphene Institute, The University of Manchester, Manchester, M13 9PL, U.K.
- Lydia
Becker Institute of Immunology and Inflammation, Faculty of Biology,
Medicine and Health, The University of Manchester,
Manchester Academic Health Science Centre, Manchester M13 9PT, U.K.
| | - Sonja Holme
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science
Centre, Manchester M13 9PT, U.K.
- National
Graphene Institute, The University of Manchester, Manchester, M13 9PL, U.K.
- Lydia
Becker Institute of Immunology and Inflammation, Faculty of Biology,
Medicine and Health, The University of Manchester,
Manchester Academic Health Science Centre, Manchester M13 9PT, U.K.
| | | | - Francesco Bonaccorso
- BeDimensional
S.p.A., Lungo Torrente
Secca 30r, 16163 Genoa, Italy
- Istituto
Italiano di Tecnologia, Graphene Laboratories, Via Morego 30, 16163 Genoa, Italy
| | - Alberto Bianco
- CNRS,
Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University
of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Emmanuel Flahaut
- CIRIMAT,
Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université
de Toulouse, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
| | - Kostas Kostarelos
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science
Centre, Manchester M13 9PT, U.K.
- National
Graphene Institute, The University of Manchester, Manchester, M13 9PL, U.K.
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Cyrill Bussy
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science
Centre, Manchester M13 9PT, U.K.
- National
Graphene Institute, The University of Manchester, Manchester, M13 9PL, U.K.
- Lydia
Becker Institute of Immunology and Inflammation, Faculty of Biology,
Medicine and Health, The University of Manchester,
Manchester Academic Health Science Centre, Manchester M13 9PT, U.K.
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5
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Loret T, de Luna LAV, Lucherelli MA, Fordham A, Lozano N, Bianco A, Kostarelos K, Bussy C. Lung Persistence, Biodegradation, and Elimination of Graphene-Based Materials are Predominantly Size-Dependent and Mediated by Alveolar Phagocytes. Small 2023; 19:e2301201. [PMID: 37264768 DOI: 10.1002/smll.202301201] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/03/2023] [Indexed: 06/03/2023]
Abstract
Graphene-based materials (GBMs) have promising applications in various sectors, including pulmonary nanomedicine. Nevertheless, the influence of GBM physicochemical characteristics on their fate and impact in lung has not been thoroughly addressed. To fill this gap, the biological response, distribution, and bio-persistence of four different GBMs in mouse lungs up to 28 days after single oropharyngeal aspiration are investigated. None of the GBMs, varying in size (large versus small) and carbon to oxygen ratio as well as thickness (few-layers graphene (FLG) versus thin graphene oxide (GO)), induce a strong pulmonary immune response. However, recruited neutrophils internalize nanosheets better and degrade GBMs faster than macrophages, revealing their crucial role in the elimination of small GBMs. In contrast, large GO sheets induce more damages due to a hindered degradation and long-term persistence in macrophages. Overall, small dimensions appear to be a leading feature in the design of safe GBM pulmonary nanovectors due to an enhanced degradation in phagocytes and a faster clearance from the lungs for small GBMs. Thickness also plays an important role, since decreased material loading in alveolar phagocytes and faster elimination are found for FLGs compared to thinner GOs. These results are important for designing safer-by-design GBMs for biomedical application.
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Affiliation(s)
- Thomas Loret
- Nanomedicine Lab 2.0, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Luis Augusto Visani de Luna
- Nanomedicine Lab 2.0, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Matteo Andrea Lucherelli
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Alexander Fordham
- Nanomedicine Lab 2.0, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Neus Lozano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Kostas Kostarelos
- Nanomedicine Lab 2.0, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Cyrill Bussy
- Nanomedicine Lab 2.0, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
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6
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Cazier H, Malgorn C, Georgin D, Fresneau N, Beau F, Kostarelos K, Bussy C, Campidelli S, Pinault M, Mayne-L'Hermite M, Taran F, Junot C, Fenaille F, Sallustrau A, Colsch B. Correlative radioimaging and mass spectrometry imaging: a powerful combination to study 14C-graphene oxide in vivo biodistribution. Nanoscale 2023; 15:5510-5518. [PMID: 36853236 DOI: 10.1039/d2nr06753f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Research on graphene based nanomaterials has flourished in the last decade due their unique properties and emerging socio-economic impact. In the context of their potential exploitation for biomedical applications, there is a growing need for the development of more efficient imaging techniques to track the fate of these materials. Herein we propose the first correlative imaging approach based on the combination of radioimaging and mass spectrometry imaging for the detection of Graphene Oxide (GO) labelled with carbon-14 in mice. In this study, 14C-graphene oxide nanoribbons were produced from the oxidative opening of 14C-carbon nanotubes, and were then intensively sonicated to provide nano-size 14C-GO flakes. After Intravenous administration in mice, 14C-GO distribution was quantified by radioimaging performed on tissue slices. On the same slices, MS-imaging provided a highly resolved distribution map of the nanomaterial based on the detection of specific radical anionic carbon clusters ranging from C2˙- to C9˙- with a base peak at m/z 72 (12C) and 74 (14C) under negative laser desorption ionization mass spectrometry (LDI-MS) conditions. This proof of concept approach synergizes the strength of each technique and could be advantageous in the pre-clinical development of future Graphene-based biomedical applications.
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Affiliation(s)
- Hélène Cazier
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 91191 Gif-sur-Yvette, France
| | - Carole Malgorn
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SiMos, 91191 Gif-sur-Yvette, France
| | - Dominique Georgin
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Nathalie Fresneau
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
- Université Paris Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Fabrice Beau
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SiMos, 91191 Gif-sur-Yvette, France
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, AV Hill Building, University of Manchester, Manchester M13 9PL, UK
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), UAB Campus Bellaterra, Barcelona 08193, Spain
| | - Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, AV Hill Building, University of Manchester, Manchester M13 9PL, UK
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
| | - Stéphane Campidelli
- Université Paris Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Mathieu Pinault
- Université Paris-Saclay, CEA, CNRS, NIMBE, LEDNA, 91191 Gif-sur-Yvette, France
| | | | - Frédéric Taran
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Christophe Junot
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 91191 Gif-sur-Yvette, France
| | - François Fenaille
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 91191 Gif-sur-Yvette, France
| | - Antoine Sallustrau
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Benoit Colsch
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 91191 Gif-sur-Yvette, France
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Parker H, Gravagnuolo AM, Vranic S, Crica LE, Newman L, Carnell O, Bussy C, Dookie RS, Prestat E, Haigh SJ, Lozano N, Kostarelos K, MacDonald AS. Graphene oxide modulates dendritic cell ability to promote T cell activation and cytokine production. Nanoscale 2022; 14:17297-17314. [PMID: 36374249 DOI: 10.1039/d2nr02169b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
An important aspect of immunotherapy is the ability of dendritic cells (DCs) to prime T cell immunity, an approach that has yielded promising results in some early phase clinical trials. However, novel approaches are required to improve DC therapeutic efficacy by enhancing their uptake of, and activation by, disease relevant antigens. The carbon nano-material graphene oxide (GO) may provide a unique way to deliver antigen to innate immune cells and modify their ability to initiate effective adaptive immune responses. We have assessed whether GO of various lateral sizes affects DC activation and function in vitro and in vivo, including their ability to take up, process and present the well-defined model antigen ovalbumin (OVA). We have found that GO flakes are internalised by DCs, while having minimal effect on their viability, activation phenotype or cytokine production. Although adsorption of OVA protein to either small or large GO flakes promoted its uptake into DCs, large GO interfered with OVA processing. In terms of modulation of DC function, delivery of OVA via small GO flakes significantly enhanced DC ability to induce proliferation of OVA-specific CD4+ T cells, promoting granzyme B secretion in vitro. On the other hand, delivery of OVA via large GO flakes augmented DC ability to induce proliferation of OVA-specific CD8+ T cells, and their production of IFN-γ and granzyme B. Together, these data demonstrate the capacity of GO of different lateral dimensions to act as a promising delivery platform for DC modulation of distinct facets of the adaptive immune response, information that could be exploited for future development of targeted immunotherapies.
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Affiliation(s)
- Helen Parker
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, UK.
| | - Alfredo Maria Gravagnuolo
- Nanomedicine Lab, University of Manchester, UK.
- National Graphene Institute, University of Manchester, UK
| | - Sandra Vranic
- Nanomedicine Lab, University of Manchester, UK.
- National Graphene Institute, University of Manchester, UK
| | - Livia Elena Crica
- Nanomedicine Lab, University of Manchester, UK.
- National Graphene Institute, University of Manchester, UK
| | - Leon Newman
- Nanomedicine Lab, University of Manchester, UK.
- National Graphene Institute, University of Manchester, UK
| | - Oliver Carnell
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, UK.
| | - Cyrill Bussy
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, UK.
- Nanomedicine Lab, University of Manchester, UK.
- National Graphene Institute, University of Manchester, UK
| | - Rebecca S Dookie
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, UK.
| | - Eric Prestat
- School of Materials, University of Manchester, UK
- SuperSTEM Laboratory, SciTech Daresbury Campus, Daresbury, WA4 4AD, UK
| | - Sarah J Haigh
- National Graphene Institute, University of Manchester, UK
- School of Materials, University of Manchester, UK
| | - Neus Lozano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Kostas Kostarelos
- Nanomedicine Lab, University of Manchester, UK.
- National Graphene Institute, University of Manchester, UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Andrew S MacDonald
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, UK.
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8
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de Luna LAV, Loret T, Fordham A, Arshad A, Drummond M, Dodd A, Lozano N, Kostarelos K, Bussy C. Lung recovery from DNA damage induced by graphene oxide is dependent on size, dose and inflammation profile. Part Fibre Toxicol 2022; 19:62. [PMID: 36131347 PMCID: PMC9490925 DOI: 10.1186/s12989-022-00502-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A key aspect of any new material safety assessment is the evaluation of their in vivo genotoxicity. Graphene oxide (GO) has been studied for many promising applications, but there are remaining concerns about its safety profile, especially after inhalation. Herein we tested whether GO lateral dimension, comparing micrometric (LGO) and nanometric (USGO) GO sheets, has a role in the formation of DNA double strand breaks in mouse lungs. We used spatial resolution and differential cell type analysis to measure DNA damages in both epithelial and immune cells, after either single or repeated exposure. RESULTS GO induced DNA damages were size and dose dependent, in both exposure scenario. After single exposure to a high dose, both USGO and LGO induced significant DNA damage in the lung parenchyma, but only during the acute phase response (p < 0.05 for USGO; p < 0.01 for LGO). This was followed by a fast lung recovery at day 7 and 28 for both GOs. When evaluating the chronic impact of GO after repeated exposure, only a high dose of LGO induced long-term DNA damages in lung alveolar epithelia (at 84 days, p < 0.05). Regardless of size, low dose GO did not induce any significant DNA damage after repeated exposure. A multiparametric correlation analysis of our repeated exposure data revealed that transient or persistent inflammation and oxidative stress were associated to either recovery or persistent DNA damages. For USGO, recovery from DNA damage was correlated to efficient recovery from acute inflammation (i.e., significant secretion of SAA3, p < 0.001; infiltration of neutrophils, p < 0.01). In contrast, the persistence of LGO in lungs was associated to a long-lasting presence of multinucleated macrophages (up to 84 days, p < 0.05), an underlying inflammation (IL-1α secretion up to 28 days, p < 0.05) and the presence of persistent DNA damages at 84 days. CONCLUSIONS Overall these results highlight the importance of the exposure scenario used. We showed that LGO was more genotoxic after repeated exposure than single exposure due to persistent lung inflammation. These findings are important in the context of human health risk assessment and toward establishing recommendations for a safe use of graphene based materials in the workplace.
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Affiliation(s)
- Luis Augusto Visani de Luna
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Thomas Loret
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Alexander Fordham
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Atta Arshad
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Matthew Drummond
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - Abbie Dodd
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - Neus Lozano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Kostas Kostarelos
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Cyrill Bussy
- Nanomedicine Lab 2.0, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK. .,National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK. .,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.
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9
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Fordham A, Bianco A, Lozano N, Kostarelos K, Bussy C. SOC-IV-01 Graphene oxide and hexagonal boron nitride nanosheets do not induce innate immune memory. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Loret T, de Luna LV, Lucarelli M, Fordham A, Lozano N, Bianco A, Kostarelos K, Bussy C. SOC-III-03 Pulmonary toxicity of graphene based materials is governed by size-dependant biodegradation and clearance in alveolar phagocytes. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Chortarea S, Kuru OC, Netkueakul W, Pelin M, Keshavan S, Song Z, Ma B, Gómes J, Abalos EV, Luna LAVD, Loret T, Fordham A, Drummond M, Kontis N, Anagnostopoulos G, Paterakis G, Cataldi P, Tubaro A, Galiotis C, Kinloch I, Fadeel B, Bussy C, Kostarelos K, Buerki-Thurnherr T, Prato M, Bianco A, Wick P. Hazard assessment of abraded thermoplastic composites reinforced with reduced graphene oxide. J Hazard Mater 2022; 435:129053. [PMID: 35650742 DOI: 10.1016/j.jhazmat.2022.129053] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/22/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Graphene-related materials (GRMs) are subject to intensive investigations and considerable progress has been made in recent years in terms of safety assessment. However, limited information is available concerning the hazard potential of GRM-containing products such as graphene-reinforced composites. In the present study, we conducted a comprehensive investigation of the potential biological effects of particles released through an abrasion process from reduced graphene oxide (rGO)-reinforced composites of polyamide 6 (PA6), a widely used engineered thermoplastic polymer, in comparison to as-produced rGO. First, a panel of well-established in vitro models, representative of the immune system and possible target organs such as the lungs, the gut, and the skin, was applied. Limited responses to PA6-rGO exposure were found in the different in vitro models. Only as-produced rGO induced substantial adverse effects, in particular in macrophages. Since inhalation of airborne materials is a key occupational concern, we then sought to test whether the in vitro responses noted for these materials would translate into adverse effects in vivo. To this end, the response at 1, 7 and 28 days after a single pulmonary exposure was evaluated in mice. In agreement with the in vitro data, PA6-rGO induced a modest and transient pulmonary inflammation, resolved by day 28. In contrast, rGO induced a longer-lasting, albeit moderate inflammation that did not lead to tissue remodeling within 28 days. Taken together, the present study suggests a negligible impact on human health under acute exposure conditions of GRM fillers such as rGO when released from composites at doses expected at the workplace.
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Affiliation(s)
- Savvina Chortarea
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Ogul Can Kuru
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Woranan Netkueakul
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Sandeep Keshavan
- Nanosafety & Nanomedicine Laboratory, Institute of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Zhengmei Song
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Baojin Ma
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Julio Gómes
- Avanzare Innovacion Tecnologica S.L. 26370 Navarrete, Spain
| | - Elvira Villaro Abalos
- Instituto de Tecnologías Químicas de La Rioja (InterQuímica), 26370 Navarrete, Spain
| | - Luis Augusto Visani de Luna
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Thomas Loret
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Alexander Fordham
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Matthew Drummond
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Nikolaos Kontis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - George Anagnostopoulos
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - George Paterakis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - Pietro Cataldi
- National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Costas Galiotis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), 26504 Patras, Greece; Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Ian Kinloch
- National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Bengt Fadeel
- Nanosafety & Nanomedicine Laboratory, Institute of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, United Kingdom
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology, Medicine & Health, University of Manchester, Manchester M13 9PT, United Kingdom; National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom; Catalan Institute of Nanoscience and Nanotechnology (ICN2), and Barcelona Institute of Science and Technology (BIST), Barcelona 08193, Spain
| | - Tina Buerki-Thurnherr
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), 20014 Donostia San Sebastián, Spain; Basque Foundation for Science (IKERBASQUE), 48013 Bilbao, Spain
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Peter Wick
- Swiss Federal Laboratories for Materials Science and Technology (Empa), Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland.
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Loret T, de Luna LAV, Fordham A, Arshad A, Barr K, Lozano N, Kostarelos K, Bussy C. Innate but Not Adaptive Immunity Regulates Lung Recovery from Chronic Exposure to Graphene Oxide Nanosheets. Adv Sci (Weinh) 2022; 9:e2104559. [PMID: 35166457 PMCID: PMC9008410 DOI: 10.1002/advs.202104559] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/21/2021] [Indexed: 05/05/2023]
Abstract
Graphene has drawn a lot of interest in the material community due to unique physicochemical properties. Owing to a high surface area to volume ratio and free oxygen groups, the oxidized derivative, graphene oxide (GO) has promising potential as a drug delivery system. Here, the lung tolerability of two distinct GO varying in lateral dimensions is investigated, to reveal the most suitable candidate platform for pulmonary drug delivery. Following repeated chronic pulmonary exposure of mice to GO sheet suspensions, the innate and adaptive immune responses are studied. An acute and transient influx of neutrophils and eosinophils in the alveolar space, together with the replacement of alveolar macrophages by interstitial ones and a significant activation toward anti-inflammatory subsets, are found for both GO materials. Micrometric GO give rise to persistent multinucleated macrophages and granulomas. However, neither adaptive immune response nor lung tissue remodeling are induced after exposure to micrometric GO. Concurrently, milder effects and faster tissue recovery, both associated to a faster clearance from the respiratory tract, are found for nanometric GO, suggesting a greater lung tolerability. Taken together, these results highlight the importance of dimensions in the design of biocompatible 2D materials for pulmonary drug delivery system.
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Affiliation(s)
- Thomas Loret
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
| | - Luis Augusto Visani de Luna
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
| | - Alexander Fordham
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
| | - Atta Arshad
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
| | - Katharine Barr
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
| | - Neus Lozano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)CSIC and The Barcelona Institute of Science and Technology (BIST)Campus UABBellaterraBarcelona08193Spain
| | - Kostas Kostarelos
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)CSIC and The Barcelona Institute of Science and Technology (BIST)Campus UABBellaterraBarcelona08193Spain
| | - Cyrill Bussy
- Nanomedicine LabFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteThe University of ManchesterManchesterM13 9PLUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthThe University of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
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13
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Chen Y, Rivers-Auty J, Crică LE, Barr K, Rosano V, Arranz AE, Loret T, Spiller D, Bussy C, Kostarelos K, Vranic S. Dynamic interactions and intracellular fate of label-free, thin graphene oxide sheets within mammalian cells: role of lateral sheet size. Nanoscale Adv 2021; 3:4166-4185. [PMID: 36132849 PMCID: PMC9419297 DOI: 10.1039/d1na00133g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/09/2021] [Indexed: 06/16/2023]
Abstract
Graphene oxide (GO) holds great potential for biomedical applications, however fundamental understanding of the way it interacts with biological systems is still lacking even though it is essential for successful clinical translation. In this study, we exploit intrinsic fluorescent properties of thin GO sheets to establish the relationship between lateral dimensions of the material, its cellular uptake mechanisms and intracellular fate over time. Label-free GO with distinct lateral dimensions, small (s-GO) and ultra-small (us-GO) were thoroughly characterised both in water and in biologically relevant cell culture medium. Interactions of the material with a range of non-phagocytic mammalian cell lines (BEAS-2B, NIH/3T3, HaCaT, 293T) were studied using a combination of complementary analytical techniques (confocal microscopy, flow cytometry and TEM). The uptake mechanism was initially interrogated using a range of pharmaceutical inhibitors and validated using polystyrene beads of different diameters (0.1 and 1 μm). Subsequently, RNA-Seq was used to follow the changes in the uptake mechanism used to internalize s-GO flakes over time. Regardless of lateral dimensions, both types of GO were found to interact with the plasma membrane and to be internalized by a panel of cell lines studied. However, s-GO was internalized mainly via macropinocytosis while us-GO was mainly internalized via clathrin- and caveolae-mediated endocytosis. Importantly, we report the shift from macropinocytosis to clathrin-dependent endocytosis in the uptake of s-GO at 24 h, mediated by upregulation of mTORC1/2 pathway. Finally, we show that both s-GO and us-GO terminate in lysosomal compartments for up to 48 h. Our results offer an insight into the mechanism of interaction of GO with non-phagocytic cell lines over time that can be exploited for the design of biomedically-applicable 2D transport systems.
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Affiliation(s)
- Yingxian Chen
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Jack Rivers-Auty
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester AV Hill Building, Oxford Road Manchester M13 9PT UK
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester Manchester M13 9PT UK
- School of Medicine, College of Health and Medicine, University of Tasmania Hobart Tasmania Australia
| | - Livia Elena Crică
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Katie Barr
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Vinicio Rosano
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Adrián Esteban Arranz
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Thomas Loret
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - David Spiller
- FBMH Platform Sciences, Enabling Technologies & Infrastructure, FBMH Research & Innovation, Faculty of Biology, Medicine and Health, The University of Manchester Michael Smith Building Manchester M13 9PT UK
| | - Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
| | - Sandra Vranic
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester AV Hill Building Manchester M13 9PT UK
- National Graphene Institute, The University of Manchester Booth Street East Manchester M13 9PL UK
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14
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Patil R, Ray D, Aswal VK, Bussy C, Bahadur P, Tiwari S. Adsorption of P103 Nanoaggregates on Graphene Oxide Nanosheets: Role of Electrostatic Forces in Improving Nanosheet Dispersion. Langmuir 2021; 37:867-873. [PMID: 33400877 DOI: 10.1021/acs.langmuir.0c03206] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Graphene oxide (GO) nanosheet suspension is not stable in physiological ionic fluids. To improve stability, surfactants such as Pluronic 103 (P103) have been tested. Going further, this work investigated whether conferring positive surface charge to the surfactant may improve the adsorption ability of P103 micelles on GO sheets. Positive charge on the surfactant was induced by adding dodecyltrimethylammonium bromide (DTAB, a cationic surfactant) in P103 micelles. Subsequent changes in aggregation parameters were investigated through dynamic light scattering and small-angle neutron scattering studies. DTAB incorporation was accompanied by a steady increase in the ζ potential and mixed micelle formation. At high surface charge density, the interaction between adjacent head groups was distorted, which led to dissociation of mixed micelles. Structural developments during the adsorption of mixed micelles on the sheet surface (mass fractal formation) were monitored in terms of changes in the scattering features of aggregates. These fractals emerged as a result of electrostatic interactions. Our observations point toward the existence of small-sized building blocks at low DTAB concentration (≤4 mM). With a superior adsorption, mixed micelles are expected to occupy the intersheet space and maintain a hydration layer. However, at a higher DTAB concentration (≥10 mM), micelles dissociate to produce DTAB-rich unimers and P103-rich loose aggregates. At this point, sheets tend to aggregate in the solvent, regardless of fractal formation.
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Affiliation(s)
- Rahul Patil
- Maliba Pharmacy College, UKA Tarsadia University, Gopal-Vidyanagar Campus, Surat 394350, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Cyrill Bussy
- Nanomedicine Lab, School of Biological Sciences, and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine & Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PR, U.K
- National Graphene Institute, The University of Manchester, Manchester M13 9PR, U.K
| | - Pratap Bahadur
- Department of Chemistry, Veer Narmad South Gujarat University, Surat 395007, India
| | - Sanjay Tiwari
- Maliba Pharmacy College, UKA Tarsadia University, Gopal-Vidyanagar Campus, Surat 394350, India
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15
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Portioli C, Bussy C, Mazza M, Lozano N, Jasim DA, Prato M, Bianco A, Bentivoglio M, Kostarelos K. Intracerebral Injection of Graphene Oxide Nanosheets Mitigates Microglial Activation Without Inducing Acute Neurotoxicity: A Pilot Comparison to Other Nanomaterials. Small 2020; 16:e2004029. [PMID: 33210448 DOI: 10.1002/smll.202004029] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/09/2020] [Indexed: 05/24/2023]
Abstract
Carbon-based nanomaterials (CNMs) are being explored for neurological applications. However, systematic in vivo studies investigating the effects of CNM nanocarriers in the brain and how brain cells respond to such nanomaterials are scarce. To address this, functionalized multiwalled carbon nanotubes and graphene oxide (GO) sheets are injected in mice brain and compared with charged liposomes. The induction of acute neuroinflammatory and neurotoxic effects locally and in brain structures distant from the injection site are assessed up to 1 week postadministration. While significant neuronal cell loss and sustained microglial cell activation are observed after injection of cationic liposomes, none of the tested CNMs induces either neurodegeneration or microglial activation. Among the candidate nanocarriers tested, GO sheets appear to elicit the least deleterious neuroinflammatory profile. At molecular level, GO induces moderate activation of proinflammatory markers compared to vehicle control. At histological level, brain response to GO is lower than after vehicle control injection, suggesting some capacity for GO to reduce the impact of stereotactic injection on brain. While these findings are encouraging and valuable in the selection and design of nanomaterial-based brain delivery systems, they warrant further investigations to better understand the mechanisms underlying GO immunomodulatory properties in brain.
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Affiliation(s)
- Corinne Portioli
- Nanomedicine Lab, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, 37134, Italy
| | - Cyrill Bussy
- Nanomedicine Lab, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
| | - Mariarosa Mazza
- Nanomedicine Lab, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
| | - Neus Lozano
- Nanomedicine Lab, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Dhifaf A Jasim
- Nanomedicine Lab, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, 34127, Italy
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, Donostia-San Sebastián, 20014, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, ISIS, University of Strasbourg, Strasbourg, 67000, France
| | - Marina Bentivoglio
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, 37134, Italy
| | - Kostas Kostarelos
- Nanomedicine Lab, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, 08193, Spain
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16
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Lázaro I, Sharp P, Gurcan C, Ceylan A, Stylianou M, Kisby T, Chen Y, Vranic S, Barr K, Taheri H, Ozen A, Bussy C, Yilmazer A, Kostarelos K. Deep Tissue Translocation of Graphene Oxide Sheets in Human Glioblastoma 3D Spheroids and an Orthotopic Xenograft Model. Adv Therap 2020. [DOI: 10.1002/adtp.202000109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Irene Lázaro
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
- John A Paulson School of Engineering and Applied Sciences Harvard University 58 Oxford Street Cambridge MA 02138 USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University 3 Blackfan Circle Boston MA 02115 USA
| | - Paul Sharp
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Cansu Gurcan
- Department of Biomedical Engineering, Faculty of Engineering Ankara University Ankara 06830 Turkey
- Stem Cell Institute Ankara University Ankara 06520 Turkey
| | - Ahmet Ceylan
- Department of Histology Embryology, Faculty of Veterinary Medicine Ankara University Ankara 06110 Turkey
| | - Maria Stylianou
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Thomas Kisby
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Yingxian Chen
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Sandra Vranic
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Katharine Barr
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Hadiseh Taheri
- Department of Biomedical Engineering, Faculty of Engineering Ankara University Ankara 06830 Turkey
| | - Asuman Ozen
- Department of Histology Embryology, Faculty of Veterinary Medicine Ankara University Ankara 06110 Turkey
| | - Cyrill Bussy
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Acelya Yilmazer
- Department of Biomedical Engineering, Faculty of Engineering Ankara University Ankara 06830 Turkey
- Stem Cell Institute Ankara University Ankara 06520 Turkey
| | - Kostas Kostarelos
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) UAB Campus Bellaterra Barcelona 08193 Spain
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17
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Newman L, Jasim DA, Prestat E, Lozano N, de Lazaro I, Nam Y, Assas BM, Pennock J, Haigh SJ, Bussy C, Kostarelos K. Splenic Capture and In Vivo Intracellular Biodegradation of Biological-Grade Graphene Oxide Sheets. ACS Nano 2020; 14:10168-10186. [PMID: 32658456 PMCID: PMC7458483 DOI: 10.1021/acsnano.0c03438] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/13/2020] [Indexed: 05/20/2023]
Abstract
Carbon nanomaterials, including 2D graphene-based materials, have shown promising applicability to drug delivery, tissue engineering, diagnostics, and various other biomedical areas. However, to exploit the benefits of these materials in some of the areas mentioned, it is necessary to understand their possible toxicological implications and long-term fate in vivo. We previously demonstrated that following intravenous administration, 2D graphene oxide (GO) nanosheets were largely excreted via the kidneys; however, a small but significant portion of the material was sequestered in the spleen. Herein, we interrogate the potential consequences of this accumulation and the fate of the spleen-residing GO over a period of nine months. We show that our thoroughly characterized GO materials are not associated with any detectable pathological consequences in the spleen. Using confocal Raman mapping of tissue sections, we determine the sub-organ biodistribution of GO at various time points after administration. The cells largely responsible for taking up the material are confirmed using immunohistochemistry coupled with Raman spectroscopy, and transmission electron microscopy (TEM). This combination of techniques identified cells of the splenic marginal zone as the main site of GO bioaccumulation. In addition, through analyses using both bright-field TEM coupled with electron diffraction and Raman spectroscopy, we reveal direct evidence of in vivo intracellular biodegradation of GO sheets with ultrastructural precision. This work offers critical information about biological processing and degradation of thin GO sheets by normal mammalian tissue, indicating that further development and exploitation of GO in biomedicine would be possible.
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Affiliation(s)
- Leon Newman
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
| | - Dhifaf A. Jasim
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
| | - Eric Prestat
- Department
of Materials, School of Natural Sciences, The University of Manchester, Manchester, M13 9PL, United Kingdom
| | - Neus Lozano
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), Barcelona, 08193, Spain
| | - Irene de Lazaro
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
| | - Yein Nam
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
| | - Bakri M. Assas
- Lydia
Becker Institute of Immunology and Inflammation, and Division of Infection,
Immunity and Respiratory Medicine, School of Biological Sciences,
Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
- Department
of Immunology, Faculty of Applied Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Joanne Pennock
- Lydia
Becker Institute of Immunology and Inflammation, and Division of Infection,
Immunity and Respiratory Medicine, School of Biological Sciences,
Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
| | - Sarah J. Haigh
- Department
of Materials, School of Natural Sciences, The University of Manchester, Manchester, M13 9PL, United Kingdom
| | - Cyrill Bussy
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
| | - Kostas Kostarelos
- Nanomedicine
Lab, National Graphene Institute and Faculty of Biology, Medicine
& Health, The University of Manchester, Manchester, M13 9PT, United Kingdom
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), Barcelona, 08193, Spain
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18
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Cellot G, Vranic S, Shin Y, Worsley R, Rodrigues AF, Bussy C, Casiraghi C, Kostarelos K, McDearmid JR. Graphene oxide nanosheets modulate spinal glutamatergic transmission and modify locomotor behaviour in an in vivo zebrafish model. Nanoscale Horiz 2020; 5:1250-1263. [PMID: 32558850 DOI: 10.1039/c9nh00777f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Graphene oxide (GO), an oxidised form of graphene, is widely used for biomedical applications, due to its dispersibility in water and simple surface chemistry tunability. In particular, small (less than 500 nm in lateral dimension) and thin (1-3 carbon monolayers) graphene oxide nanosheets (s-GO) have been shown to selectively inhibit glutamatergic transmission in neuronal cultures in vitro and in brain explants obtained from animals injected with the nanomaterial. This raises the exciting prospect that s-GO can be developed as a platform for novel nervous system therapeutics. It has not yet been investigated whether the interference of the nanomaterial with neurotransmission may have a downstream outcome in modulation of behaviour depending specifically on the activation of those synapses. To address this problem we use early stage zebrafish as an in vivo model to study the impact of s-GO on nervous system function. Microinjection of s-GO into the embryonic zebrafish spinal cord selectively reduces the excitatory synaptic transmission of the spinal network, monitored in vivo through patch clamp recordings, without affecting spinal cell survival. This effect is accompanied by a perturbation in the swimming activity of larvae, which is the locomotor behaviour generated by the neuronal network of the spinal cord. Such results indicate that the impact of s-GO on glutamate based neuronal transmission is preserved in vivo and can induce changes in animal behaviour. These findings pave the way for use of s-GO as a modulator of nervous system function.
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Affiliation(s)
- Giada Cellot
- Department of Neuroscience, Psychology and Behaviour, College of Life Sciences, University of Leicester, Leicester, LE1 7RH, UK
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19
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Rodrigues AF, Newman L, Jasim D, Mukherjee SP, Wang J, Vacchi IA, Ménard‐Moyon C, Bianco A, Fadeel B, Kostarelos K, Bussy C. Size-Dependent Pulmonary Impact of Thin Graphene Oxide Sheets in Mice: Toward Safe-by-Design. Adv Sci (Weinh) 2020; 7:1903200. [PMID: 32596109 PMCID: PMC7312279 DOI: 10.1002/advs.201903200] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 04/07/2020] [Indexed: 05/17/2023]
Abstract
Safety assessment of graphene-based materials (GBMs) including graphene oxide (GO) is essential for their safe use across many sectors of society. In particular, the link between specific material properties and biological effects needs to be further elucidated. Here, the effects of lateral dimensions of GO sheets in acute and chronic pulmonary responses after single intranasal instillation in mice are compared. Micrometer-sized GO induces stronger pulmonary inflammation than nanometer-sized GO, despite reduced translocation to the lungs. Genome-wide RNA sequencing also reveals distinct size-dependent effects of GO, in agreement with the histopathological results. Although large GO, but not the smallest GO, triggers the formation of granulomas that persists for up to 90 days, no pulmonary fibrosis is observed. These latter results can be partly explained by Raman imaging, which evidences the progressive biotransformation of GO into less graphitic structures. The findings demonstrate that lateral dimensions play a fundamental role in the pulmonary response to GO, and suggest that airborne exposure to micrometer-sized GO should be avoided in the production plant or applications, where aerosolized dispersions are likely to occur. These results are important toward the implementation of a safer-by-design approach for GBM products and applications, for the benefit of workers and end-users.
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Affiliation(s)
- Artur Filipe Rodrigues
- Nanomedicine LabFaculty of Biology, Medicine and HealthUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteUniversity of ManchesterManchesterM13 9PTUK
- Lydia Becker Institute of Immunology and InflammationSchool of Health SciencesUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
| | - Leon Newman
- Nanomedicine LabFaculty of Biology, Medicine and HealthUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteUniversity of ManchesterManchesterM13 9PTUK
| | - Dhifaf Jasim
- Nanomedicine LabFaculty of Biology, Medicine and HealthUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteUniversity of ManchesterManchesterM13 9PTUK
| | - Sourav P. Mukherjee
- Nanosafety & Nanomedicine LaboratoryInstitute of Environmental MedicineKarolinska InstitutetStockholm171 77Sweden
| | - Jun Wang
- Science for Life LaboratoryDepartment of Biochemistry and BiophysicsStockholm UniversityStockholm171 65Sweden
| | - Isabella A. Vacchi
- University of StrasbourgCNRSImmunology, Immunopathology and Therapeutic ChemistryUPR 3572Strasbourg67 084France
| | - Cécilia Ménard‐Moyon
- University of StrasbourgCNRSImmunology, Immunopathology and Therapeutic ChemistryUPR 3572Strasbourg67 084France
| | - Alberto Bianco
- University of StrasbourgCNRSImmunology, Immunopathology and Therapeutic ChemistryUPR 3572Strasbourg67 084France
| | - Bengt Fadeel
- Nanosafety & Nanomedicine LaboratoryInstitute of Environmental MedicineKarolinska InstitutetStockholm171 77Sweden
| | - Kostas Kostarelos
- Nanomedicine LabFaculty of Biology, Medicine and HealthUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteUniversity of ManchesterManchesterM13 9PTUK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)Campus UABBellaterraBarcelona08193Spain
| | - Cyrill Bussy
- Nanomedicine LabFaculty of Biology, Medicine and HealthUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
- National Graphene InstituteUniversity of ManchesterManchesterM13 9PTUK
- Lydia Becker Institute of Immunology and InflammationSchool of Health SciencesUniversity of ManchesterManchester Academic Health Science CentreManchesterM13 9PTUK
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20
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Affiliation(s)
| | - M. Nodin
- Clinique Vétérinaire du Grand Renaud St Saturnin France
| | - C. Bussy
- Clinique Vétérinaire du Grand Renaud St Saturnin France
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21
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Adair S, Baus M, Bell R, Boero M, Bussy C, Cardenas F, Casey T, Castro J, Davis W, Erskine M, Farr R, Fischer A, Forbes B, Ford T, Genovese R, Gottschalk R, Hoge M, Honnas C, Hunter G, Joyce J, Kaneps A, Keegan K, Kramer J, Labens R, Lischer C, Marshall J, Oosterlinck M, Radue P, Redding R, Reed S, Rick M, Santschi E, Schoonover M, Schramme M, Schumacher J, Stephenson R, Thaler R, Nielsen JV, Wilson D. Letter to the Editor: A response to 'What is lameness and what (or who) is the gold standard to detect it?'. Equine Vet J 2018; 51:270-272. [PMID: 30570777 DOI: 10.1111/evj.13043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S Adair
- University of Tennessee, Knoxville, Tennessee, USA
| | - M Baus
- Gran Prix Equine, Hawleyville, Connecticut, USA
| | - R Bell
- Park Equine Hospital, Lexington, Kentucky, USA
| | | | - C Bussy
- Clinique Vétérinaire du Grand Renaud, Saint Saturnin, France
| | - F Cardenas
- 3H Equine Hospital and Mobile Veterinary Services, New Hill, North Carolina, USA
| | - T Casey
- Fourways Equine Clinic, Johannesburg, South Africa
| | - J Castro
- Davie County Large Animal Hospital, Mocksville, North Carolina, USA
| | - W Davis
- Palm Beach Equine Clinic, Wellington, Florida, USA
| | - M Erskine
- Virginia Tech, Leesburg, Virginia, USA
| | - R Farr
- Farr and Pursey Equine Veterinary Services, Aldbury, Hertfordshire, UK
| | - A Fischer
- Chino Valley Equine Hospital, Chino Hills, California, USA
| | - B Forbes
- Singapore Turf Club, Singapore, Singapore
| | - T Ford
- Ford Veterinary Surgery Center, Clovis, California, USA
| | - R Genovese
- Cleveland Equine Clinic, Ravenna, Ohio, USA
| | - R Gottschalk
- Witbos Veterinary Clinic, Blue Hills AH, South Africa
| | - M Hoge
- Murrieta Equine, Murrieta, California, USA
| | - C Honnas
- Texas Equine Hospital, Bryan, Texas, USA
| | - G Hunter
- Ardene House Veterinary Practice, Aberdeen, UK
| | - J Joyce
- Total Equine Veterinary Associates, Leesburg, Virginia, USA
| | - A Kaneps
- Kaneps Equine Sports Medicine and Surgery, Beverly, Massachusetts, USA
| | - K Keegan
- University of Missouri, Columbia, Missouri, USA
| | - J Kramer
- University of Missouri, Columbia, Missouri, USA
| | - R Labens
- Charles Sturt University, Albury, New South Wales, Australia
| | - C Lischer
- Freie Universität Berlin, Berlin, Germany
| | | | | | - P Radue
- Damascus Equine Associates, Mount Airy, Maryland, USA
| | - R Redding
- North Carolina State University, Raleigh, North Carolina, USA
| | - S Reed
- Ohio State University, Columbus, Ohio, USA
| | - M Rick
- Alamo Pintado Equine Medical Centre, Los Olivos, California, USA
| | - E Santschi
- Kansas State University, Manhattan, Kansas, USA
| | - M Schoonover
- Oklahoma State University, Stillwater, Oklahoma, USA
| | | | | | | | - R Thaler
- Metamora Equine PC, Metamora, Michigan, USA
| | - J V Nielsen
- Ansager Veterinary Hospital, Ansager, Denmark
| | - D Wilson
- University of Missouri, Columbia, Missouri, USA
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22
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Fadeel B, Bussy C, Merino S, Vázquez E, Flahaut E, Mouchet F, Evariste L, Gauthier L, Koivisto AJ, Vogel U, Martín C, Delogu LG, Buerki-Thurnherr T, Wick P, Beloin-Saint-Pierre D, Hischier R, Pelin M, Candotto Carniel F, Tretiach M, Cesca F, Benfenati F, Scaini D, Ballerini L, Kostarelos K, Prato M, Bianco A. Safety Assessment of Graphene-Based Materials: Focus on Human Health and the Environment. ACS Nano 2018; 12:10582-10620. [PMID: 30387986 DOI: 10.1021/acsnano.8b04758] [Citation(s) in RCA: 297] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Graphene and its derivatives are heralded as "miracle" materials with manifold applications in different sectors of society from electronics to energy storage to medicine. The increasing exploitation of graphene-based materials (GBMs) necessitates a comprehensive evaluation of the potential impact of these materials on human health and the environment. Here, we discuss synthesis and characterization of GBMs as well as human and environmental hazard assessment of GBMs using in vitro and in vivo model systems with the aim to understand the properties that underlie the biological effects of these materials; not all GBMs are alike, and it is essential that we disentangle the structure-activity relationships for this class of materials.
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Affiliation(s)
- Bengt Fadeel
- Nanosafety & Nanomedicine Laboratory, Institute of Environmental Medicine , Karolinska Institutet , 17777 Stockholm , Sweden
| | - Cyrill Bussy
- Nanomedicine Laboratory, Faculty of Biology, Medicine & Health , University of Manchester , Manchester M13 9PL , United Kingdom
| | - Sonia Merino
- Faculty of Chemical Science and Technology , University of Castilla-La Mancha , 13071 Ciudad Real , Spain
| | - Ester Vázquez
- Faculty of Chemical Science and Technology , University of Castilla-La Mancha , 13071 Ciudad Real , Spain
| | | | | | | | - Laury Gauthier
- CNRS, Université Paul Sabatier , 31062 Toulouse , France
| | - Antti J Koivisto
- National Research Centre for the Working Environment , 2100 Copenhagen , Denmark
| | - Ulla Vogel
- National Research Centre for the Working Environment , 2100 Copenhagen , Denmark
| | - Cristina Martín
- University of Strasbourg, CNRS , Immunology, Immunopathology and Therapeutic Chemistry , 67000 Strasbourg , France
| | - Lucia G Delogu
- Department of Chemistry and Pharmacy University of Sassari , Sassari 7100 , Italy
- Istituto di Ricerca Pediatrica , Fondazione Città della Speranza , 35129 Padova , Italy
| | - Tina Buerki-Thurnherr
- Swiss Federal Laboratories for Materials Science and Technology (EMPA) , 9014 St. Gallen , Switzerland
| | - Peter Wick
- Swiss Federal Laboratories for Materials Science and Technology (EMPA) , 9014 St. Gallen , Switzerland
| | | | - Roland Hischier
- Swiss Federal Laboratories for Materials Science and Technology (EMPA) , 9014 St. Gallen , Switzerland
| | - Marco Pelin
- Department of Life Sciences , University of Trieste , 34127 Trieste , Italy
| | | | - Mauro Tretiach
- Department of Life Sciences , University of Trieste , 34127 Trieste , Italy
| | - Fabrizia Cesca
- Center for Synaptic Neuroscience and Technology , Istituto Italiano di Tecnologia , 16132 Genova , Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology , Istituto Italiano di Tecnologia , 16132 Genova , Italy
| | - Denis Scaini
- Scuola Internazionale Superiore di Studi Avanzati (SISSA) , 34136 Trieste , Italy
| | - Laura Ballerini
- Scuola Internazionale Superiore di Studi Avanzati (SISSA) , 34136 Trieste , Italy
| | - Kostas Kostarelos
- Nanomedicine Laboratory, Faculty of Biology, Medicine & Health , University of Manchester , Manchester M13 9PL , United Kingdom
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , 34127 Trieste , Italy
- Carbon Nanobiotechnology Laboratory , CIC BiomaGUNE , 20009 San Sebastian , Spain
- Basque Foundation for Science, Ikerbasque , 48013 Bilbao , Spain
| | - Alberto Bianco
- University of Strasbourg, CNRS , Immunology, Immunopathology and Therapeutic Chemistry , 67000 Strasbourg , France
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Adair S, Baus M, Belknap J, Bell R, Boero M, Bussy C, Cardenas F, Casey T, Castro J, Davis W, Erskine M, Farr R, Fischer T, Forbes B, Ford T, Genovese R, Gottschalk R, Hoge M, Honnas C, Hunter G, Joyce J, Kaneps A, Keegan K, Kramer J, Lischer C, Marshall J, Oosterlinck M, Radue P, Redding R, Reed SK, Rick M, Santschi E, Schoonover M, Schramme M, Schumacher J, Stephenson R, Thaler R, Vedding Neilsen J, Wilson DA. Response to Letter to the Editor: Do we have to redefine lameness in the era of quantitative gait analysis. Equine Vet J 2018; 50:415-417. [PMID: 29633362 DOI: 10.1111/evj.12820] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S Adair
- University of Tennessee, USA
| | - M Baus
- Gran Prix Equine, Connecticut, USA
| | | | - R Bell
- Park Equine Hospital, Kentucky, USA
| | | | | | - F Cardenas
- 3H Equine Hospital and Mobile Veterinary Services, North Carolina, USA
| | - T Casey
- Fourways Equine Clinic, South Africa
| | | | - W Davis
- Palm Beach Equine Clinic, Florida, USA
| | | | - R Farr
- Farr and Pursey Equine Veterinary Services, Hertfordshire, UK
| | - T Fischer
- Chino Valley Equine Hospital, California, USA
| | | | - T Ford
- Ford Veterinary Surgery Center, California, USA
| | | | | | - M Hoge
- Murrieta Equine, California, USA
| | | | - G Hunter
- Ardene House Veterinary Practice, Aberdeen, UK
| | - J Joyce
- Total Equine Veterinary Associates, Virginia, USA
| | - A Kaneps
- Kaneps Equine Sports Medicine and Surgery, Massachusetts, USA
| | | | | | | | | | | | - P Radue
- Damascus Equine Associates, Maryland, USA
| | - R Redding
- North Carolina State University, USA
| | | | - M Rick
- Alamo Pintado Equine Medical Centre, California, USA
| | | | | | | | | | | | - R Thaler
- Metamora Equine PC, Michigan, USA
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Vranic S, Rodrigues AF, Buggio M, Newman L, White MRH, Spiller DG, Bussy C, Kostarelos K. Live Imaging of Label-Free Graphene Oxide Reveals Critical Factors Causing Oxidative-Stress-Mediated Cellular Responses. ACS Nano 2018; 12:1373-1389. [PMID: 29286639 DOI: 10.1021/acsnano.7b07734] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The interest in graphene and its translation into commercial products has been expanding at a high pace. Based on previously described pulmonary safety concerns for carbon nanomaterials, there is a great need to define parameters guiding interactions between graphene-based materials and the pulmonary system. The aim of the present study was to determine the importance of two critical parameters: lateral dimensions of the material and coating with proteins in relation to each other and their pulmonary impact. Endotoxin-free materials with distinct lateral dimensions, s-GO (50-200 nm) and l-GO (5-15 μm), were produced and thoroughly characterized. Exploiting intrinsic fluorescence of graphene oxide (GO) and using confocal live-cell imaging, the behavior of the cells in response to the material was visualized in real time. Although BEAS-2B cells internalized GO efficiently, l-GO was linked to higher plasma membrane interactions correlated with elevated reactive oxygen species (ROS) levels, pro-inflammatory response, and greater cytotoxicity, in agreement with the oxidative stress paradigm. For both GO types, the presence of serum alleviated lipid peroxidation of plasma membrane and decreased intracellular ROS levels. However, protein coating was not enough to entirely mitigate toxicity and inflammatory response induced by l-GO. In vitro results were validated in vivo, as l-GO was more prone to induce pulmonary granulomatous response in mice compared to s-GO. In conclusion, the lateral dimension of GO played a more important role than serum protein coating in determining biological responses to the material. It was also demonstrated that time-lapse imaging of live cells interacting with label-free GO sheets can be used as a tool to assess GO-induced cytotoxicity.
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Affiliation(s)
- Sandra Vranic
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester , AV Hill Building, Manchester M13 9PT, U.K
- National Graphene Institute, The University of Manchester , Booth Street East, Manchester M13 9PL, U.K
| | - Artur Filipe Rodrigues
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester , AV Hill Building, Manchester M13 9PT, U.K
- National Graphene Institute, The University of Manchester , Booth Street East, Manchester M13 9PL, U.K
| | - Maurizio Buggio
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester , AV Hill Building, Manchester M13 9PT, U.K
- National Graphene Institute, The University of Manchester , Booth Street East, Manchester M13 9PL, U.K
| | - Leon Newman
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester , AV Hill Building, Manchester M13 9PT, U.K
- National Graphene Institute, The University of Manchester , Booth Street East, Manchester M13 9PL, U.K
| | - Michael R H White
- School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester , Michael Smith Building, Manchester M13 9PT, U.K
| | - David G Spiller
- FBMH Platform Sciences, Enabling Technologies & Infrastructure, FBMH Research & Innovation, Faculty of Biology, Medicine and Health, The University of Manchester , Michael Smith Building, Manchester M13 9PT, U.K
| | - Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester , AV Hill Building, Manchester M13 9PT, U.K
- National Graphene Institute, The University of Manchester , Booth Street East, Manchester M13 9PL, U.K
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, The University of Manchester , AV Hill Building, Manchester M13 9PT, U.K
- National Graphene Institute, The University of Manchester , Booth Street East, Manchester M13 9PL, U.K
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Bussy C, Bianco A, Prato M, Kostarelos K. Primary microglia maintain their capacity to function despite internalisation and intracellular loading with carbon nanotubes. Nanoscale Horiz 2017; 2:284-296. [PMID: 32260684 DOI: 10.1039/c7nh00055c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Biomedical applications of functionalised carbon nanotubes (f-CNTs) for imaging as well as drug or gene delivery in the brain have recently gained interest. Several studies have demonstrated the potential of f-CNTs to offer treatment options for neurological conditions with success. However, there is also evidence that f-CNTs accumulate preferentially within microglial cells when introduced in the brain. Considering the key immunological role of these cells in the brain and the limited knowledge regarding the interaction of CNTs with microglial cells, it is imperative to understand whether accumulation of CNTs in microglial cells can alter their physiological functions or trigger pro-inflammatory signalling. The aim of the present study was to investigate the basic physiological functions of isolated primary microglial cells over time, following their exposure to multi-walled carbon nanotubes functionalized via different surface chemistries. We rationalized that some chemical strategies may be more deleterious for microglial cell functions than others. We used rat primary microglial cells that can be maintained in cell culture for a long period of time without undergoing cell division. Cell viability, phagocytosis, migration, and pro-inflammatory factor release were studied over one month, following a single exposure to a non-cytotoxic concentration of three different f-CNTs (carboxylated, aminated and both carboxylated and aminated). We show that f-CNTs do not induce inflammation and do not affect the basic functions of microglial cells under these conditions. Importantly, this was the case from day 1 to day 28 post-exposure, even though microglial cells had internalized f-CNTs in subcellular compartments and retained the nanotube load in their cytoplasm over time.
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Affiliation(s)
- Cyrill Bussy
- Nanomedicine Lab, Faculty of Biology, Medicine and Health & National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK.
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Russier J, Oudjedi L, Piponnier M, Bussy C, Prato M, Kostarelos K, Lounis B, Bianco A, Cognet L. Direct visualization of carbon nanotube degradation in primary cells by photothermal imaging. Nanoscale 2017; 9:4642-4645. [PMID: 28327707 DOI: 10.1039/c6nr09795b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Assessment of biodegradability of carbon nanotubes (CNTs) is a critically important aspect that needs to be solved before their translation into new biomedical tools. CNT biodegradation has been shown both in vitro and in vivo, but we are limited by the number of analytical techniques that can be used to follow the entire process. Photothermal imaging (PhI) is an innovative technique that enables the quantitative detection of nanometer-sized absorptive objects. In this study, we demonstrate that PhI allows the observation of the degradation process of functionalized multi-walled carbon nanotubes (MWCNTs) following their internalization by primary glial cells. The absence of interference from the biological matrix components, together with the possibility to combine PhI with other detection techniques (e.g. fluorescence, light or electron microscopy) validate the potential of this method to follow the fate and behavior of carbon nanostructures in a biological environment.
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Affiliation(s)
- Julie Russier
- University of Strasbourg, CNRS, Immunopathology and Therapeutic Chemistry, UPR 3572, 67000 Strasbourg, France.
| | - Laura Oudjedi
- University of Bordeaux, LP2N, F-33405 Talence, France. and Institut d'Optique & CNRS, LP2N, F-33405 Talence, France
| | - Martin Piponnier
- University of Bordeaux, LP2N, F-33405 Talence, France. and Institut d'Optique & CNRS, LP2N, F-33405 Talence, France
| | - Cyrill Bussy
- Nanomedicine Laboratory, Faculty of Biology, Medicine and Health and National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK
| | - Maurizio Prato
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Trieste 34127, Italy and Carbon Nanobiotechnology Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastian, Spain and Basque Fdn Sci, Ikerbasque, Bilbao 48013, Spain
| | - Kostas Kostarelos
- Nanomedicine Laboratory, Faculty of Biology, Medicine and Health and National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK
| | - Brahim Lounis
- University of Bordeaux, LP2N, F-33405 Talence, France. and Institut d'Optique & CNRS, LP2N, F-33405 Talence, France
| | - Alberto Bianco
- University of Strasbourg, CNRS, Immunopathology and Therapeutic Chemistry, UPR 3572, 67000 Strasbourg, France.
| | - Laurent Cognet
- University of Bordeaux, LP2N, F-33405 Talence, France. and Institut d'Optique & CNRS, LP2N, F-33405 Talence, France
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28
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Bussy C, Hadad C, Prato M, Bianco A, Kostarelos K. Intracellular degradation of chemically functionalized carbon nanotubes using a long-term primary microglial culture model. Nanoscale 2016; 8:590-601. [PMID: 26647092 DOI: 10.1039/c5nr06625e] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Chemically functionalized carbon nanotubes (f-CNTs) have been used in proof-of-concept studies to alleviate debilitating neurological conditions. Previous in vivo observations in brain tissue have suggested that microglia - acting as resident macrophages of the brain - play a critical role in the internalization of f-CNTs and their partial in situ biodegradation following a stereotactic administration in the cortex. At the same time, several reports have indicated that immune cells such as neutrophils, eosinophils and even macrophages could participate in the processing of carbon nanomaterials via oxidation processes leading to degradation, with surface properties acting as modulators of CNT biodegradability. In this study we questioned whether degradability of f-CNTs within microglia could be modulated depending on the type of surface functionalization used. We investigated the kinetics of degradation of multi-walled carbon nanotubes (MWNTs) functionalized via different chemical strategies that were internalized within isolated primary microglia over three months. A cellular model of rat primary microglia that can be maintained in cell culture for a long period of time was first developed. The Raman structural signature of the internalized f-CNTs was then studied directly in cells over a period of up to three months, following a single exposure to a non-cytotoxic concentration of three different f-CNTs (carboxylated, aminated and both carboxylated and aminated). Structural modifications suggesting partial but continuous degradation were observed for all nanotubes irrespective of their surface functionalization. Carboxylation was shown to promote more pronounced structural changes inside microglia over the first two weeks of the study.
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Affiliation(s)
- Cyrill Bussy
- Nanomedicine Lab, School of Medicine & National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK. and Faculty of Life Sciences, University College London, Brunswick Square, London WC1N 1AX, UK
| | - Caroline Hadad
- Center of Excellence for Nanostructured Materials, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy and Carbon Nanobiotechnology Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastian, Spain
| | - Maurizio Prato
- Center of Excellence for Nanostructured Materials, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy and Carbon Nanobiotechnology Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastian, Spain
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, UPR 3572, Immunopathologie et Chimie Thérapeutique, Strasbourg, France
| | - Kostas Kostarelos
- Nanomedicine Lab, School of Medicine & National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK. and Faculty of Life Sciences, University College London, Brunswick Square, London WC1N 1AX, UK
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Bussy C, Al-Jamal KT, Boczkowski J, Lanone S, Prato M, Bianco A, Kostarelos K. Microglia Determine Brain Region-Specific Neurotoxic Responses to Chemically Functionalized Carbon Nanotubes. ACS Nano 2015; 9:7815-7830. [PMID: 26043308 DOI: 10.1021/acsnano.5b02358] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Surface tunability and their ability to translocate plasma membranes make chemically functionalized carbon nanotubes (f-CNTs) promising intracellular delivery systems for therapeutic or diagnostic purposes in the central nervous system (CNS). The present study aimed to determine the biological impact of different types of multiwalled CNTs (MWNTs) on primary neuronal and glial cell populations isolated from fetal rat frontal cortex (FCO) and striatum (ST). Neurons from both brain regions were generally not affected by exposure to MWNTs as determined by a modified LDH assay. In contrast, the viability of mixed glia was reduced in ST-derived mixed glial cultures, but not in FCO-derived ones. Cytotoxicity was independent of MWNT type or dose, suggesting an inherent sensitivity to CNTs. Characterization of the cell populations in mixed glial cultures prior to nanotube exposure showed higher number of CD11b/c positive cells in the ST-derived mixed glial cultures. After exposure to MWNTs, CNT were uptaken more effectively by CD11b/c positive cells (microglia), compared to GFAP positive cells (astrocytes). When exposed to conditioned media from microglia enriched cultures exposed to MWNTs, ST-derived glial cultures secreted more NO than FCO-derived cells. These results suggested that the more significant cytotoxic response obtained from ST-derived mixed glia cultures was related to the higher number of microglial cells in this brain region. Our findings emphasize the role that resident macrophages of the CNS play in response to nanomaterials and the need to thoroughly investigate the brain region-specific effects toward designing implantable devices or delivery systems to the CNS.
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Affiliation(s)
- Cyrill Bussy
- Nanomedicine Lab, Faculty of Medical & Human Sciences & National Graphene Institute, University of Manchester , AV Hill Building, Manchester M13 9PT, United Kingdom
- Faculty of Life Sciences, University College London , Brunswick Square, London WC1N 1AX, United Kingdom
| | - Khuloud T Al-Jamal
- Faculty of Life Sciences, University College London , Brunswick Square, London WC1N 1AX, United Kingdom
| | - Jorge Boczkowski
- INSERM U955, Institut Mondor de Recherche Biomédicale , Créteil F-94010 , France
- Université Paris Est Val de Marne (UPEC) , Créteil F-94010, France
- AP-HP, Hôpital Henri Mondor, Service de Physiologie Explorations Fonctionnelles , Créteil F-94010, France
| | - Sophie Lanone
- INSERM U955, Institut Mondor de Recherche Biomédicale , Créteil F-94010 , France
- Université Paris Est Val de Marne (UPEC) , Créteil F-94010, France
- Hôpital Intercommunal de Créteil , Service de Pneumologie et Pathologie Professionnelle, Créteil F-94000, France
| | - Maurizio Prato
- Center of Excellence for Nanostructured Materials, Department of Pharmaceutical Sciences, University of Trieste , Trieste 34127, Italy
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire , UPR 3572, Immunopathologie et Chimie Thérapeutiques, 67000 Strasbourg, France
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Medical & Human Sciences & National Graphene Institute, University of Manchester , AV Hill Building, Manchester M13 9PT, United Kingdom
- Faculty of Life Sciences, University College London , Brunswick Square, London WC1N 1AX, United Kingdom
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Abstract
As for any novel nanomaterial, the development of applications and industrial adoption of graphene-based materials will be subject to the confirmation of their safety profile and risk assessment. The analysis performed here maps the current knowledge of the safety of graphene-based materials as extracted by a literature mapping exercise of studies investigating these materials in preclinical animal models. We attempt to identify gaps for future studies and elucidate the critically important structure-function correlations between reported biological effects and graphene-based material physicochemical characteristics.
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Affiliation(s)
- Cyrill Bussy
- Nanomedicine Lab, Faculty of Medical & Human Sciences & National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK.
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Mazza M, Hadjidemetriou M, de Lázaro I, Bussy C, Kostarelos K. Peptide nanofiber complexes with siRNA for deep brain gene silencing by stereotactic neurosurgery. ACS Nano 2015; 9:1137-1149. [PMID: 25574683 DOI: 10.1021/nn5044838] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Peptide nanofibers (PNFs) are one-dimensional assemblies of amphiphilic peptides in a cylindrical geometry. We postulated that peptide nanofibers (PNFs) can provide the tools for genetic intervention and be used for delivery of siRNA, as they can be engineered with positively charged amino acids that can electrostatically bind siRNA. The aim of this work was to investigate the use of PNFs as vectors for siRNA delivery providing effective gene knockdown. We designed a surfactant-like peptide (palmitoyl-GGGAAAKRK) able to self-assemble into PNFs and demonstrated that complexes of PNF:siRNA are uptaken intracellularly and increase the residence time of siRNA in the brain after intracranial administration. The biological activity of the complexes was investigated in vitro by analyzing the down-regulation of the expression of a targeted protein (BCL2), as well as induction of apoptosis, as well as in vivo by analyzing the relative gene expression upon stereotactic administration into a deep rat brain structure (the subthalamic nucleus). Gene expression levels of BCL2 mRNA showed that PNF:siBCL2 constructs were able to silence the target BCL2 in specific loci of the brain. Silencing of the BCL2 gene resulted in ablation of neuronal cell populations, indicating that genetic interventions by PNF:siRNA complexes may lead to novel treatment strategies of CNS pathologies.
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Affiliation(s)
- Mariarosa Mazza
- Nanomedicine Lab, Institute of Inflammation and Repair, Faculty of Medical & Human Sciences, AV Hill Building, The University of Manchester , Manchester M13 9PT United Kingdom
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Abstract
With the rapid developments in the medical applications of carbon nanomaterials such as carbon nanohorns (CNHs), carbon nanotubes, and graphene based nanomaterials, understanding the long-term fate, health impact, excretion, and degradation of these materials has become crucial. Herein, the in vitro biodegradation of CNHs was determined using a non-cellular enzymatic oxidation method and two types of macrophage cell lines. Approximately 60% of the CNHs was degraded within 24 h in a phosphate buffer solution containing myeloperoxidase. Furthermore, approximately 30% of the CNHs was degraded by both RAW 264.7 and THP-1 macrophage cells within 9 days. Inflammation markers such as pro-inflammatory cytokines interleukin 6 and tumor necrosis factor α were not induced by exposure to CNHs. However, reactive oxygen species were generated by the macrophage cells after uptake of CNHs, suggesting that these species were actively involved in the degradation of the nanomaterials rather than in an inflammatory pathway induction.
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Affiliation(s)
- Minfang Zhang
- Nanotube Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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Belade E, Chrusciel S, Armand L, Simon-Deckers A, Bussy C, Caramelle P, Gagliolo JM, Boyer L, Lanone S, Pairon JC, Kermanizadeh A, Boczkowski J. The role of p53 in lung macrophages following exposure to a panel of manufactured nanomaterials. Arch Toxicol 2014; 89:1543-56. [PMID: 25098341 DOI: 10.1007/s00204-014-1324-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 07/21/2014] [Indexed: 10/24/2022]
Abstract
Manufactured nanomaterials (MNMs) have the potential to improve everyday life as they can be utilised in numerous medical applications and day-to-day consumer products. However, this increased use has led to concerns about the potential environmental and human health impacts. The protein p53 is a key transcription factor implicated in cellular defence and reparative responses to various stress factors. Additionally, p53 has been implicated in cellular responses following exposure to some MNMs. Here, the role of the MNM mediated p53 induction and activation and its downstream effects following exposure to five well-characterised materials [namely two types of TiO2, two carbon black (CB), and one single-walled carbon nanotube (SWCNT)] were investigated. MNM internalisation, cellular viability, p53 protein induction and activation, oxidative stress, inflammation and apoptosis were measured in murine cell line and primary pulmonary macrophage models. It was observed that p53 was implicated in the biological responses to MNMs, with oxidative stress associated with p53 activation (only following exposure to the SWCNT). We demonstrate that p53 acted as an antioxidant and anti-inflammatory in macrophage responses to SWCNT and CB NMs. However, p53 was neither involved in MNM-induced cellular toxicity, nor in the apoptosis induced by these MNMs. Moreover, the physicochemical characteristics of MNMs seemed to influence their biological effects-SWCNT the materials with the largest surface area and a fibrous shape were the most cytotoxic in this study and were capable of the induction and activation of p53.
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Affiliation(s)
- Esther Belade
- University Paris est Val de Marne (UPEC), Créteil, 94000, France
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Guétin S, Goudeau S, Pelletier E, Bonté F, Bussy C, Touchon J, Hérisson C. Intérêt de la musicothérapie chez des patients hospitalisés en service de soins de suite et réadaptation pour personnes âgées. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Guétin S, Goudeau S, Pelletier E, Bonté F, Bussy C, Touchon J, Hérisson C. Usefulness of music therapy among patients hospitalized in convalescent and rehabilitation units for the elderly. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yilmazer A, de Lázaro I, Bussy C, Kostarelos K. In vivo reprogramming of adult somatic cells to pluripotency by overexpression of Yamanaka factors. J Vis Exp 2013:e50837. [PMID: 24378537 PMCID: PMC4111367 DOI: 10.3791/50837] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Induced pluripotent stem (iPS) cells that result from the reprogramming of somatic cells to a pluripotent state by forced expression of defined factors are offering new opportunities for regenerative medicine. Such clinical applications of iPS cells have been limited so far, mainly due to the poor efficiency of the existing reprogramming methodologies and the risk of the generated iPS cells to form tumors upon implantation. We hypothesized that the reprogramming of somatic cells towards pluripotency could be achieved in vivo by gene transfer of reprogramming factors. In order to efficiently reprogram cells in vivo, high levels of the Yamanaka (OKSM) transcription factors need to be expressed at the target tissue. This can be achieved by using different viral or nonviral gene vectors depending on the target tissue. In this particular study, hydrodynamic tail-vein (HTV) injection of plasmid DNA was used to deliver the OKSM factors to mouse hepatocytes. This provided proof-of-evidence of in vivo reprogramming of adult, somatic cells towards a pluripotent state with high efficiency and fast kinetics. Furthermore no tumor or teratoma formation was observed in situ. It can be concluded that reprogramming somatic cells in vivo may offer a potential approach to induce enhanced pluripotency rapidly, efficiently, and safely compared to in vitro performed protocols and can be applied to different tissue types in the future.
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Affiliation(s)
- Açelya Yilmazer
- Nanomedicine Lab, UCL School of Pharmacy, University College London
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Bussy C, Methven L, Kostarelos K. Hemotoxicity of carbon nanotubes. Adv Drug Deliv Rev 2013; 65:2127-34. [PMID: 24211768 DOI: 10.1016/j.addr.2013.10.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/25/2013] [Accepted: 10/26/2013] [Indexed: 12/15/2022]
Abstract
Carbon nanotubes may enter into the bloodstream and interact with blood components indirectly via translocation following unintended exposure or directly after an intended administration for biomedical purposes. Once introduced into systemic circulation, nanotubes will encounter various proteins, biomolecules or cells which have specific roles in the homeostasis of the circulatory system. It is therefore essential to determine whether those interactions will lead to adverse effects or not. Advances in the understanding of how carbon nanotubes interact with blood proteins, the complement system, red blood cells and the hemostatic system are reviewed in this article. While many studies on carbon nanotube health risk assessment and their biomedical applications have appeared in the last few years, reports on the hemocompatibility of these nanomaterials remain surprisingly limited. Yet, defining the hemotoxicological profile is a mandatory step toward the development of clinically-relevant medications or contrast agents based on carbon nanotubes.
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Affiliation(s)
- Cyrill Bussy
- Nanomedicine Lab, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, AV Hill Building, Manchester M13 9PT, UK.
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Servant A, Bussy C, Al-Jamal K, Kostarelos K. Design, engineering and structural integrity of electro-responsive carbon nanotube- based hydrogels for pulsatile drug release. J Mater Chem B 2013; 1:4593-4600. [PMID: 32261202 DOI: 10.1039/c3tb20614a] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triggerable drug delivery from polymeric implants offers the possibility to generate remote-controlled drug release profiles that may overcome the deficiencies of conventional administration routes (intravenous injections and oral administration) including the toxicity due to overdose and systemic administration. An electro-responsive delivery system was engineered to deliver drug molecules in a pulsatile manner, controlled by the on/off application of electric voltage. Pristine multi-walled carbon nanotubes (pMWNTs) were incorporated into a polymethacrylic acid (PMAA)-based hydrogel matrix by in situ radical polymerisation. The effect of pMWNTs and cross-linker concentration on the electrical and mechanical properties of the hydrogel hybrids was thoroughly investigated. The incorporation of pMWNTs into the polymeric network improved the electrical properties of the hydrogel hybrids and drug release from the gels was significantly enhanced at high pMWNT concentrations, reaching 70% of the loaded dose after two short electrical stimulations. The presence of pMWNTs within the hydrogel matrix affected however the mechanical properties of the hydrogel by decreasing the pore size and therefore the swelling/de-swelling of the gels. The damage to the hybrid gel surfaces after electrical stimulation and the loss of the pulsatile release profile at high cross-linker concentrations suggested that the mechanism of drug release involved a compressing effect and intensified the stress on the polymeric network as a result of the electrical properties of pMWNTs.
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Affiliation(s)
- Ania Servant
- Nanomedicine Lab, UCL School of Pharmacy, University College London, UK.
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Bussy C, Paineau E, Cambedouzou J, Brun N, Mory C, Fayard B, Salomé M, Pinault M, Huard M, Belade E, Armand L, Boczkowski J, Launois P, Lanone S. Intracellular fate of carbon nanotubes inside murine macrophages: pH-dependent detachment of iron catalyst nanoparticles. Part Fibre Toxicol 2013; 10:24. [PMID: 23800198 PMCID: PMC3699388 DOI: 10.1186/1743-8977-10-24] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 06/10/2013] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Carbon nanotubes (CNT) are a family of materials featuring a large range of length, diameter, numbers of walls and, quite often metallic impurities coming from the catalyst used for their synthesis. They exhibit unique physical properties, which have already led to an extensive development of CNT for numerous applications. Because of this development and the resulting potential increase of human exposure, an important body of literature has been published with the aim to evaluate the health impact of CNT. However, despite evidences of uptake and long-term persistence of CNT within macrophages and the central role of those cells in the CNT-induced pulmonary inflammatory response, a limited amount of data is available so far on the CNT fate inside macrophages. Therefore, the overall aim of our study was to investigate the fate of pristine single walled CNT (SWCNT) after their internalization by macrophages. METHODS To achieve our aim, we used a broad range of techniques that aimed at getting a comprehensive characterization of the SWCNT and their catalyst residues before and after exposure of murine macrophages: X-ray diffraction (XRD), High Resolution (HR) Transmission Electron Microscopy (TEM), High Angle Annular Dark Field-Scanning TEM (HAADF-STEM) coupled to Electron Energy Loss Spectroscopy (EELS), as well as micro-X-ray fluorescence mapping (μXRF), using synchrotron radiation. RESULTS We showed 1) the rapid detachment of part of the iron nanoparticles initially attached to SWCNT which appeared as free iron nanoparticles in the cytoplasm and nucleus of CNT-exposed murine macrophages, and 2) that blockade of intracellular lysosomal acidification prevented iron nanoparticles detachment from CNT bundles and protected cells from CNT downstream toxicity. CONCLUSIONS The present results, while obtained with pristine SWCNT, could likely be extended to other catalyst-containing nanomaterials and surely open new ways in the interpretation and understanding of CNT toxicity.
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Affiliation(s)
- Cyrill Bussy
- Inserm U955 Équipe 4, Faculté de Médecine, 8 rue du Général Sarrail, 94010 Créteil, France
- UMR S955, Faculté de Médecine, Université Paris-Est, Créteil F-94000, France
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
- Nanomedicine laboratory, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Erwan Paineau
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
| | - Julien Cambedouzou
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
- UMR 5257 CEA/CNRS/UMII/ENSCM, Centre de Marcoule, Institut de Chimie Séparative de Marcoule, BP 17171, F-30207 Bagnols sur Cèze Cedex, France
| | - Nathalie Brun
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
| | - Claudie Mory
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
| | - Barbara Fayard
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
- X-ray Imaging Group, European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - Murielle Salomé
- X-ray Imaging Group, European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - Mathieu Pinault
- CEA, IRAMIS, SPAM, Laboratoire Francis Perrin (CEA-CNRS URA 2453), 91191 Gif-sur-Yvette, France
| | - Mickaël Huard
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
| | - Esther Belade
- Inserm U955 Équipe 4, Faculté de Médecine, 8 rue du Général Sarrail, 94010 Créteil, France
- UMR S955, Faculté de Médecine, Université Paris-Est, Créteil F-94000, France
| | - Lucie Armand
- Inserm U955 Équipe 4, Faculté de Médecine, 8 rue du Général Sarrail, 94010 Créteil, France
- UMR S955, Faculté de Médecine, Université Paris-Est, Créteil F-94000, France
| | - Jorge Boczkowski
- Inserm U955 Équipe 4, Faculté de Médecine, 8 rue du Général Sarrail, 94010 Créteil, France
- UMR S955, Faculté de Médecine, Université Paris-Est, Créteil F-94000, France
- Service de Physiologie Explorations Fonctionnelles, AP-HP, Hôpital Henri Mondor, F-94010 Créteil, France
- Service de pneumologie et pathologie professionnelle, Hôpital Intercommunal de Créteil, Créteil F-94000, France
| | - Pascale Launois
- Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, F-91405 Orsay cedex, France
| | - Sophie Lanone
- Inserm U955 Équipe 4, Faculté de Médecine, 8 rue du Général Sarrail, 94010 Créteil, France
- UMR S955, Faculté de Médecine, Université Paris-Est, Créteil F-94000, France
- Service de pneumologie et pathologie professionnelle, Hôpital Intercommunal de Créteil, Créteil F-94000, France
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Abstract
Many consider carbon nanomaterials the poster children of nanotechnology, attracting immense scientific interest from many disciplines and offering tremendous potential in a diverse range of applications due to their extraordinary properties. Graphene is the youngest in the family of carbon nanomaterials. Its isolation, description, and mass fabrication has followed that of fullerenes and carbon nanotubes. Graphene's development and its adoption by many industries will increase unintended or intentional human exposure, creating the need to determine its safety profile. In this Account, we compare the lessons learned from the development of carbon nanotubes with what is known about graphene, based on our own investigations and those of others. Despite both being carbon-based, nanotubes and graphene are two very distinct nanomaterials. We consider the key physicochemical characteristics (structure, surface, colloidal properties) for graphene and carbon nanotubes at three different physiological levels: cellular, tissue, and whole body. We summarize the evidence for health effects of both materials at all three levels. Overall, graphene and its derivatives are characterized by a lower aspect ratio, larger surface area, and better dispersibility in most solvents compared to carbon nanotubes. Dimensions, surface chemistry, and impurities are equally important for graphene and carbon nanotubes in determining both mechanistic (aggregation, cellular processes, biodistribution, and degradation kinetics) and toxicological outcomes. Colloidal dispersions of individual graphene sheets (or graphene oxide and other derivatives) can easily be engineered without metallic impurities, with high stability and less aggregation. Very importantly, graphene nanostructures are not fiber-shaped. These features theoretically offer significant advantages in terms of safety over inhomogeneous dispersions of fiber-shaped carbon nanotubes. However, studies that directly compare graphene with carbon nanotubes are rare, making comparative considerations of their overall safety and risk assessment challenging. In this Account, we attempt to offer a set of rules for the development of graphene and its derivatives to enhance their overall safety and minimize the risks for adverse reactions in humans from exposure. These rules are: (1) to use small, individual graphene sheets that macrophages in the body can efficiently internalize and remove from the site of deposition; (2) to use hydrophilic, stable, colloidal dispersions of graphene sheets to minimize aggregation in vivo; and (3) to use excretable graphene material or chemically-modified graphene that can be degraded effectively. Such rules can only act as guidelines at this early stage in the development of graphene-based technologies, yet they offer a set of design principles for the fabrication and safe use of graphene material that will come in contact with the human body. In a broader context, the safety risks associated with graphene materials will be entirely dependent on the specific types of graphene materials and how they are investigated or applied. Therefore, generalizations about the toxicity of "graphene" as a whole will be inaccurate, possibly misleading, and should be avoided.
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Affiliation(s)
- Cyrill Bussy
- Nanomedicine Lab, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Hanene Ali-Boucetta
- Nanomedicine Lab, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, United Kingdom
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Yilmazer A, de Lázaro I, Bussy C, Kostarelos K. In vivo cell reprogramming towards pluripotency by virus-free overexpression of defined factors. PLoS One 2013; 8:e54754. [PMID: 23355895 PMCID: PMC3552956 DOI: 10.1371/journal.pone.0054754] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 12/18/2012] [Indexed: 12/19/2022] Open
Abstract
The ability to induce the reprogramming of somatic mammalian cells to a pluripotent state by the forced expression of specific transcription factors has helped redefine the rules of cell fate and plasticity, as well as open possibilities for disease modeling, drug screening and regenerative medicine. Here, we hypothesized that the non-viral forced expression of the four originally discovered defined factors (OKSM) in adult mice could result in in vivo reprogramming of cells in the transfected tissue in situ. We show that a single hydrodynamic tail-vein (HTV) injection of two plasmids encoding for Oct3/4, Sox2, Klf4 and c-Myc respectively, are highly expressed in the liver tissue of Balb/C adult mice. Hallmark pluripotency markers were upregulated within 24–48 h after injection, followed by down-regulation of all major hepatocellular markers. Generation of transcriptionally reprogrammed cells in vivo was further confirmed by positive staining of liver tissue sections for all major pluripotency markers in Balb/C mice and the Nanog-GFP reporter transgenic strain (TNG-A) with concomitant upregulation of GFP expression in situ. No signs of physiological or anatomical abnormalities or teratoma formation were observed in the liver examined up to 120 days. These findings indicate that virus-free expression of OKSM factors in vivo can transcriptionally reprogram cells in situ rapidly, efficiently and transiently, absent of host tissue damage or teratoma formation.
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Affiliation(s)
- Açelya Yilmazer
- Nanomedicine Lab, UCL School of Pharmacy, UCL School of Life & Medical Sciences, University College London, Brunswick Square, London, United Kingdom
| | - Irene de Lázaro
- Nanomedicine Lab, UCL School of Pharmacy, UCL School of Life & Medical Sciences, University College London, Brunswick Square, London, United Kingdom
| | - Cyrill Bussy
- Nanomedicine Lab, UCL School of Pharmacy, UCL School of Life & Medical Sciences, University College London, Brunswick Square, London, United Kingdom
| | - Kostas Kostarelos
- Nanomedicine Lab, UCL School of Pharmacy, UCL School of Life & Medical Sciences, University College London, Brunswick Square, London, United Kingdom
- * E-mail:
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Mazza M, Patel A, Pons R, Bussy C, Kostarelos K. Peptide nanofibres as molecular transporters: from self-assembly to in vivo degradation. Faraday Discuss 2013; 166:181-94. [DOI: 10.1039/c3fd00100h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bussy C, Pinault M, Cambedouzou J, Landry MJ, Jegou P, Mayne-L'hermite M, Launois P, Boczkowski J, Lanone S. Critical role of surface chemical modifications induced by length shortening on multi-walled carbon nanotubes-induced toxicity. Part Fibre Toxicol 2012. [PMID: 23181604 PMCID: PMC3515433 DOI: 10.1186/1743-8977-9-46] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Given the increasing use of carbon nanotubes (CNT) in composite materials and their possible expansion to new areas such as nanomedicine which will both lead to higher human exposure, a better understanding of their potential to cause adverse effects on human health is needed. Like other nanomaterials, the biological reactivity and toxicity of CNT were shown to depend on various physicochemical characteristics, and length has been suggested to play a critical role. We therefore designed a comprehensive study that aimed at comparing the effects on murine macrophages of two samples of multi-walled CNT (MWCNT) specifically synthesized following a similar production process (aerosol-assisted CVD), and used a soft ultrasonic treatment in water to modify the length of one of them. We showed that modification of the length of MWCNT leads, unavoidably, to accompanying structural (i.e. defects) and chemical (i.e. oxidation) modifications that affect both surface and residual catalyst iron nanoparticle content of CNT. The biological response of murine macrophages to the two different MWCNT samples was evaluated in terms of cell viability, pro-inflammatory cytokines secretion and oxidative stress. We showed that structural defects and oxidation both induced by the length reduction process are at least as responsible as the length reduction itself for the enhanced pro-inflammatory and pro-oxidative response observed with short (oxidized) compared to long (pristine) MWCNT. In conclusion, our results stress that surface properties should be considered, alongside the length, as essential parameters in CNT-induced inflammation, especially when dealing with a safe design of CNT, for application in nanomedicine for example.
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Nunes A, Bussy C, Gherardini L, Meneghetti M, Herrero MA, Bianco A, Prato M, Pizzorusso T, Al-Jamal KT, Kostarelos K. In vivo degradation of functionalized carbon nanotubes after stereotactic administration in the brain cortex. Nanomedicine (Lond) 2012; 7:1485-94. [DOI: 10.2217/nnm.12.33] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Carbon nanotubes (CNTs) are increasingly being utilized in neurological applications as components of implants, electrodes or as delivery vehicles. Any application that involves implantation or injection of CNTs into the CNS needs to address the distribution and fate of the material following interaction and residence within the neuronal tissue. Here we report a preliminary study investigating the fate and structural integrity of amino-functionalized CNTs following stereotactic administration in the brain cortex. Materials & methods: The CNTs investigated had previously shown the capacity to internalize in various cell types of the CNS. An aqueous suspension of multiwalled CNT-NH3 + was stereotactically injected into the mouse brain cortex. Their interaction with neural cells and consequent effects on the CNT structural integrity was investigated by optical, transmission electron microscopy and Raman spectroscopy of brain tissue sections for a period between 2 and 14 days post cortical administration. Results & discussion: The occurrence of severe nanotube structure deformation leading to partial degradation of the chemically functionalized-multiwalled CNT-NH3 + in vivo following internalization within microglia was revealed even at early time points. Such initial observations of CNT degradation within the brain tissue render further systematic investigations using high-resolution tools imperative. Original submitted 20 October 2011; Revised submitted 19 February 2012; Published online 19 June 2012
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Affiliation(s)
- Antonio Nunes
- Nanomedicine Laboratory, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, WC1N 1AX, UK
| | - Cyrill Bussy
- Nanomedicine Laboratory, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, WC1N 1AX, UK
| | - Lisa Gherardini
- Institute of Neuroscience, Via G. Moruzzi 1, Pisa 56100, Italy
- CNR Institute of Clinical Physiology, Via Fiorentina 1, Siena 53100, Italy
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, I-I-35131 Padua, Italy
| | | | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunologie et Chimie Thérapeutiques, 67000 Strasbourg, France
| | - Maurizio Prato
- Department of Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Tommaso Pizzorusso
- Institute of Neuroscience, Via G. Moruzzi 1, Pisa 56100, Italy
- Department of Psychology, University of Florence, Area San Salvi, Padiglione 26, Florence 50100, Italy
| | - Khuloud T Al-Jamal
- Nanomedicine Laboratory, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, WC1N 1AX, UK
| | - Kostas Kostarelos
- Nanomedicine Laboratory, Centre for Drug Delivery Research, UCL School of Pharmacy, University College London, WC1N 1AX, UK
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Al-Jamal KT, Gherardini L, Bardi G, Nunes A, Guo C, Bussy C, Herrero MA, Bianco A, Prato M, Kostarelos K, Pizzorusso T. Functional motor recovery from brain ischemic insult by carbon nanotube-mediated siRNA silencing. Proc Natl Acad Sci U S A 2011; 108:10952-7. [PMID: 21690348 PMCID: PMC3131324 DOI: 10.1073/pnas.1100930108] [Citation(s) in RCA: 187] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Stroke is the second cause of death worldwide with ischemic stroke accounting for 80% of all stroke insults. Caspase-3 activation contributes to brain tissue loss and downstream biochemical events that lead to programmed cell death after traumatic brain injury. Alleviation of symptoms following ischemic neuronal injury can be potentially achieved by either genetic disruption or pharmacological inhibition of caspases. Here, we studied whether silencing of Caspase-3 using carbon nanotube-mediated in vivo RNA interference (RNAi) could offer a therapeutic opportunity against stroke. Effective delivery of siRNA directly to the CNS has been shown to normalize phenotypes in animal models of several neurological diseases. It is shown here that peri-lesional stereotactic administration of a Caspase-3 siRNA (siCas 3) delivered by functionalized carbon nanotubes (f-CNT) reduced neurodegeneration and promoted functional preservation before and after focal ischemic damage of the rodent motor cortex using an endothelin-1 induced stroke model. These observations illustrate the opportunity offered by carbon nanotube-mediated siRNA delivery and gene silencing of neuronal tissue applicable to a variety of different neuropathological conditions where intervention at well localized brain foci may offer therapeutic and functional benefits.
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Affiliation(s)
- Khuloud T. Al-Jamal
- Nanomedicine Laboratory, Center for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX, United Kingdom
- Institute of Pharmaceutical Science, King’s College London, Franklin-Wilkins Building, London SE1 9NH, United Kingdom
| | - Lisa Gherardini
- Consiglio Nazionale delle Ricerche Neuroscience Institute, Pisa Area della recerca Via G. Moruzzi 1, 56100 Pisa, Italy
| | - Giuseppe Bardi
- Consiglio Nazionale delle Ricerche Neuroscience Institute, Pisa Area della recerca Via G. Moruzzi 1, 56100 Pisa, Italy
| | - Antonio Nunes
- Nanomedicine Laboratory, Center for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX, United Kingdom
| | - Chang Guo
- Nanomedicine Laboratory, Center for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX, United Kingdom
| | - Cyrill Bussy
- Nanomedicine Laboratory, Center for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX, United Kingdom
| | - M. Antonia Herrero
- Departamento de Química Orgánica, Facultad de Química-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, UPR 9021 Immunologie et Chimie Thérapeutiques, 67000 Strasbourg, France
| | - Maurizio Prato
- Department of Pharmaceutical Sciences, Center of Excellence for Nanostructured Materials, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
| | - Kostas Kostarelos
- Nanomedicine Laboratory, Center for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX, United Kingdom
| | - Tommaso Pizzorusso
- Consiglio Nazionale delle Ricerche Neuroscience Institute, Pisa Area della recerca Via G. Moruzzi 1, 56100 Pisa, Italy
- Department of Psychology, University of Florence, Area San Salvi, 50135 Firenze, Italy; and
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Tabet L, Bussy C, Setyan A, Simon-Deckers A, Rossi MJ, Boczkowski J, Lanone S. Coating carbon nanotubes with a polystyrene-based polymer protects against pulmonary toxicity. Part Fibre Toxicol 2011; 8:3. [PMID: 21255417 PMCID: PMC3030506 DOI: 10.1186/1743-8977-8-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 01/21/2011] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND carbon nanotubes (CNT) can have adverse effects on health. Therefore, minimizing the risk associated with CNT exposure is of crucial importance. The aim of this work was to evaluate if coating multi-walled CNT (MWCNT) with polymers could modify their toxicity, thus representing a useful strategy to decrease adverse health effects of CNT. We used industrially-produced MWCNT uncoated (NT1) or coated (50/50 wt%) with acid-based (NT2) or polystyrene-based (NT3) polymer, and exposed murine macrophages (RAW 264.7 cell line) or Balb/c mice by intratracheal administration. Biological experiments were performed both in vitro and in vivo, examining time- and dose-dependent effects of CNT, in terms of cytotoxicity, expression of genes and proteins related to oxidative stress, inflammation and tissue remodeling, cell and lung tissue morphology (optical and transmission electron microscopy), and bronchoalveolar lavage fluid content analysis. RESULTS extensive physico-chemical characterization of MWCNT was performed, and showed, although similar dimensions for the 3 MWCNT, a much smaller specific surface area for NT2 and NT3 as compared to NT1 (54.1, 34 and 227.54 m(2)/g respectively), along with different surface characteristics. MWCNT-induced cytotoxicity, oxidative stress, and inflammation were increased by acid-based and decreased by polystyrene-based polymer coating both in vitro in murine macrophages and in vivo in lung of mice monitored for 6 months. CONCLUSIONS these results demonstrate that coating CNT with polymers, without affecting their intrinsic structure, may constitute a useful strategy for decreasing CNT toxicity, and may hold promise for improving occupational safety and that of general the user.
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Singh P, Samorì C, Toma FM, Bussy C, Nunes A, Al-Jamal KT, Ménard-Moyon C, Prato M, Kostarelos K, Bianco A. Polyamine functionalized carbon nanotubes: synthesis, characterization, cytotoxicity and siRNA binding. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04064a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bussy C, Ghiassi P, Oasi C, Pariel S, Chauvelier S, Sohane M, Belmin J. 289 Improving safety of patient treated by vitamin K antagonists in geriatrics. BMJ Qual Saf 2010. [DOI: 10.1136/qshc.2010.041624.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Houpert P, Bizot JC, Bussy C, Dhieux B, Lestaevel P, Gourmelon P, Paquet F. Comparison of the effects of enriched uranium and 137-cesium on the behaviour of rats after chronic exposure. Int J Radiat Biol 2009; 83:99-104. [PMID: 17357431 DOI: 10.1080/09553000601121124] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE A radionuclide that accumulates in the central nervous system is likely to exert both a chemical and a radiological effect. The present study aimed at assessing the behavioral effect of two radionuclides previously shown to accumulate in the central nervous system after chronic exposure--uranium and cesium. MATERIALS AND METHODS Rats were exposed for 9 months to drinking water contaminated with either enriched uranium at a dosage of 40 mg U x l(-1) or 137-cesium at a dosage of 6500 Bq x l(-1), which correspond to the highest concentrations measured in some wells in the south of Finland (uranium) or in the milk in Belarus in the year following the Chernobyl accident (137-cesium). RESULTS At this level of exposure, 137-cesium had no effect on the locomotor activity measured in an open-field, on immobility time in a forced swimming test, on spontaneous alternation in a Y-maze and on novel object exploration in an object recognition test. Enriched uranium exposure specifically reduced the spontaneous alternation measured in the Y-maze after 3 and 9 months exposure although it did not affect the other parameters. CONCLUSION Enriched uranium exposure altered the spatial working memory capacities and this effect was correlated with previously described accumulation of uranium in the hippocampus which is one of the cerebral areas involved in this memory system.
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Affiliation(s)
- P Houpert
- Laboratoire de radiotoxicologie expérimentale, Service de radiobiologie et d'épidémiologie, Direction de la radioprotection de l'homme, Institut de Radioprotection et de Sûreté Nucléaire, BP 166, 26702 Pierrelatte, France.
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