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Montalvão MF, Chagas TQ, Rodrigues ASDL, Guimarães ATB, Malafaia G. Long-term exposure of zebrafish juveniles to carbon nanofibers at predicted environmentally relevant concentrations: Outspreading warns about ecotoxicological risks to freshwater fish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:163153. [PMID: 37003323 DOI: 10.1016/j.scitotenv.2023.163153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 05/13/2023]
Abstract
Although carbon-based nanomaterials (CNMs) toxicity has already been demonstrated in some animal models, little is known about the impact of carbon nanofibers (CNFs) on aquatic vertebrates. Thus, we aimed to evaluate the possible effects of long-term exposure of zebrafish (Danio rerio) juveniles (90 days) to CNFs in predicted environmentally relevant concentrations (10 ng/L and 10 μg/L). Our data revealed that exposure to CNFs did not affect the growth and development of the animals, in addition to not having induced locomotor alterations or anxiety-like behavior. On the other hand, we observed that zebrafish exposed to CNFs showed a response deficit to the vibratory stimulus test, alteration in the density of neuromasts recorded in the final ventral region, as well as an increase in thiobarbituric acid reactive substances levels and a reduction in total antioxidant activity, nitric oxide, and acetylcholinesterase activity in the brain. Such data were directly associated with a higher concentration of total organic carbon in the brain, which suggests the bioaccumulation of CNFs. Furthermore, exposure to CNFs induced a picture suggestive of genomic instability, inferred by the increased frequency of nuclear abnormalities and DNA damage in circulating erythrocytes. Although the individual analyses of the biomarkers did not point to a concentration-dependent effect, the principal component analysis (PCA) and the Integrated Biomarker Response Index (IBRv2) indicate a more prominent effect induced by the higher CNFs concentration (10 μg/L). Therefore, our study confirms the impact of CNFs in the studied model (D. rerio) and sheds light on the ecotoxicological risks of these nanomaterials to freshwater fish. Based on the ecotoxicological screening provided by our study, new horizons are opened for investigations into the mechanisms of action of CNFs, which will help understand the magnitude of the impact of these materials on aquatic biota.
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Affiliation(s)
- Mateus Flores Montalvão
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Thales Quintão Chagas
- State Secretariat of Environmental Development (SEDAM), Sedam's Conservation Units Coordination (CUC), Conservation Unit Management Division, Porto Velho, RO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Guilherme Malafaia
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Brazilian Academy of Young Scientists (ABJC), Brazil.
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2
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Ince Yardimci A, Istifli ES, Acikbas Y, Liman R, Yagmucukardes N, Yilmaz S, Ciğerci İH. Synthesis and characterization of single-walled carbon nanotube: Cyto-genotoxicity in Allium cepa root tips and molecular docking studies. Microsc Res Tech 2022; 85:3193-3206. [PMID: 35678501 DOI: 10.1002/jemt.24177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/17/2022] [Accepted: 05/27/2022] [Indexed: 11/11/2022]
Abstract
Herein, single-walled carbon nanotubes (SWCNTs) were synthesized by the thermal chemical vapor deposition (CVD) method, and characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), Raman spectroscopy, dynamic light scattering (DLS), and thermo-gravimetric analysis (TGA). The results indicated that obtained nanotubes were SWCNTs with high crystallinity and their average diameter was 10.15 ± 3 nm. Allium cepa ana-telophase and comet assays on the root meristem were employed to evaluate the cytotoxic and genotoxic effects of SWCNTs by examining mitotic phases, mitotic index (MI), chromosomal aberrations (CAs), and DNA damage. A. cepa root tip cells were exposed to SWCNTs at concentrations of 12.5, 25, 50, and 100 μg/ml for 4 h. Distilled water and methyl methanesulfonate (MMS, 10 μg/ml) were used as the negative and positive control groups, respectively. It was observed that MIs decreased statistically significantly for all applied doses. Besides, CAs such as chromosome laggards, disturbed anaphase-telophase, stickiness and bridges and also DNA damage increased in the presence of SWCNTs in a concentration-dependent manner. In the molecular docking study, the SWCNT were found to be a strong DNA major groove binder showing an energetically very favorable binding free energy of -21.27 kcal/mol. Furthermore, the SWCNT interacted effectively with the nucleotides on both strands of DNA primarily via hydrophobic π and electrostatic interactions. As a result, cytotoxic and genotoxic effects of SWCNTs in A. cepa root meristematic cells which is a reliable system for assessment of nanoparticle toxicology were demonstrated in this study.
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Affiliation(s)
| | - Erman Salih Istifli
- Department of Biology, Faculty of Science and Literature, Cukurova University, Adana, Turkey
| | - Yaser Acikbas
- Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Usak University, Usak, Turkey
| | - Recep Liman
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Usak University, Usak, Turkey
| | - Nesli Yagmucukardes
- Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Usak University, Usak, Turkey
| | - Selahattin Yilmaz
- Department of Chemical Engineering, Izmir Institute of Technology, Izmir, Turkey
| | - İbrahim Hakkı Ciğerci
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Afyon Kocatepe University, Afyonkarahisar, Turkey
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3
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Vijayalakshmi V, Sadanandan B, Venkataramanaiah Raghu A. Single walled carbon nanotubes in high concentrations is cytotoxic to the human neuronal cell LN18. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100484] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Montalvão MF, Guimarães ATB, Rodrigues ASDL, Malafaia G. Carbon nanofibers are bioaccumulated in Aphylla williamsoni (Odonata) larvae and cause REDOX imbalance and changes of acetylcholinesterase activity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:143991. [PMID: 33302068 DOI: 10.1016/j.scitotenv.2020.143991] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/11/2020] [Accepted: 11/15/2020] [Indexed: 06/12/2023]
Abstract
Carbon-based materials have been considered very promising for the technological industry due to their unique physical and chemical properties, namely: ability to reduce production costs and to improve the efficiency of several products. However, there is little information on what is the level of exposure that leads to adverse effects and what kind of effects is expected in aquatic biota. Thus, the aim of the present study was to evaluate the toxicity of carbon nanofibers (CNFs) in dragonfly larvae (Aphylla williamsoni) based on predictive oxidative-stress biomarkers, antioxidant activity reduction and neurotoxicity. After ephemeral models' exposure to CNFs (48 h; at 500 μg/L), data have shown that these pollutants did not change larvae's nutritional status given the concentration of total soluble carbohydrates, total proteins and triglycerides in them. However, the levels of both nitric oxide and substances reactive to thiobarbituric acid (lipid peroxidation indicators) have increased and the antioxidant activity based on total thiol levels and on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (%) has reduced, and it suggests REDOX imbalance induction by CNFs. In addition, larvae exposed to these pollutants showed significant acetylcholinesterase activity reduction in comparison to the control group. Thus, the present study has brought further knowledge about how carbon-based materials can affect benthic macroinvertebrates and emphasized their ecotoxicological potential in freshwater environments.
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Affiliation(s)
- Mateus Flores Montalvão
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil; Laboratório de Pesquisas Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano, Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratório de Pesquisas Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil; Laboratório de Pesquisas Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano, Urutaí, GO, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Goiânia, GO, Brazil.
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Gomes AR, Chagas TQ, Silva AM, Sueli de Lima Rodrigues A, Marinho da Luz T, Emmanuela de Andrade Vieira J, Malafaia G. Trophic transfer of carbon nanofibers among eisenia fetida, danio rerio and oreochromis niloticus and their toxicity at upper trophic level. CHEMOSPHERE 2021; 263:127657. [PMID: 32814134 DOI: 10.1016/j.chemosphere.2020.127657] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/08/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Although the toxicity of carbon-based nanomaterials has already been demonstrated in several studies, their transfer in the food chain and impact on the upper trophic level remain unexplored. Thus, based on the experimental food chain "Eisenia fetida → Danio rerio → Oreochromis niloticus", the current study tested the hypothesis that carbon nanofibers (CNFs) accumulated in animals are transferred to the upper trophic level and cause mutagenic and cytotoxic changes. E. fetida individuals were exposed to CNFs and offered to D. rerio, which were later used to feed O. niloticus. The quantification of total organic carbon provided evidence of CNFs accumulation at all evaluated trophic levels. Such accumulation was associated with higher frequency of erythrocyte nuclear abnormalities such as constricted erythrocyte nuclei, vacuole, blebbed, kidney-shaped and micronucleated erythrocytes in Nile tilapia exposed to CNFs via food chain. The cytotoxic effect was inferred based on the smaller size of the erythrocyte nuclei and on the lower "nuclear/cytoplasmic" area ratio in tilapia exposed to CNFs via food chain. Our study provided pioneering evidence about CNFs accumulation at trophic levels of the experimental chain, as well as about the mutagenic and cytotoxic effect of these materials on O. niloticus.
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Affiliation(s)
- Alex Rodrigues Gomes
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil
| | - Thales Quintão Chagas
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil
| | - Abner Marcelino Silva
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil
| | - Julya Emmanuela de Andrade Vieira
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus Urutaí, GO, Brazil.
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Jiang T, Amadei CA, Gou N, Lin Y, Lan J, Vecitis CD, Gu AZ. Toxicity of Single-Walled Carbon Nanotubes (SWCNTs): Effect of Lengths, Functional Groups and Electronic Structures Revealed by a Quantitative Toxicogenomics Assay. ENVIRONMENTAL SCIENCE. NANO 2020; 7:1348-1364. [PMID: 33537148 PMCID: PMC7853656 DOI: 10.1039/d0en00230e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) are a group of widely used carbon-based nanomaterials (CNMs) with various applications, which raise increasing public concerns associated with their potential toxicological effect and risks on human and ecosystems. In this report, we comprehensively evaluated the nanotoxicity of SWCNTs with their relationship to varying lengths, functional groups and electronic structures, by employing both newly established quantitative toxicogenomics test, as well as conventional phenotypic bioassays. The objective is to reveal potential cellular toxicity and mechanisms of SWCNTs at the molecular level, and to probe their potential relationships with their morphological, surface, and electronic properties. The results indicated that DNA damage and oxidative stress were the dominant mechanisms of action for all SWCNTs and, the toxicity level and characteristics varied with length, surface functionalization and electronic structure. Distinguishable molecular toxicity fingerprints were revealed for the two SWCNTs with varying length, with short SWCNT exhibiting higher toxicity level than the long one. In terms of surface properties, SWCNT functionalization, namely carboxylation and hydroxylation, led to elevated overall toxicity, especially genotoxicity, as compared to unmodified SWCNT. Carboxylated SWCNT induced a greater toxicity than the hydroxylated SWCNT. The nucleus is likely the primary target site for long, short, and carboxylated SWCNTs and mechanical perturbation is likely responsible for the DNA damage, specifically related to degradation of the DNA double helix structure. Finally, dramatically different electronic structure-dependent toxicity was observed with metallic SWCNT exerting much higher toxicity than the semiconducting one that exhibited minimal toxicity among all SWCNTs.
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Affiliation(s)
- Tao Jiang
- Department of Civil and Environmental Engineering, Northeastern University, 360 Huntington Ave, Boston, MA 02115
| | - Carlo Alberto Amadei
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
| | - Na Gou
- Department of Civil and Environmental Engineering, Northeastern University, 360 Huntington Ave, Boston, MA 02115
- School of Civil and Environmental Engineering, Cornell University, 220 Hollister Dr., Ithaca, NY 14853
| | - Yishan Lin
- Department of Civil and Environmental Engineering, Northeastern University, 360 Huntington Ave, Boston, MA 02115
- School of Civil and Environmental Engineering, Cornell University, 220 Hollister Dr., Ithaca, NY 14853
| | - Jiaqi Lan
- Department of Civil and Environmental Engineering, Northeastern University, 360 Huntington Ave, Boston, MA 02115
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Corresponding authors: ,
| | - Chad D. Vecitis
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
| | - April Z. Gu
- School of Civil and Environmental Engineering, Cornell University, 220 Hollister Dr., Ithaca, NY 14853
- Corresponding authors: ,
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7
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Elespuru R, Pfuhler S, Aardema MJ, Chen T, Doak SH, Doherty A, Farabaugh CS, Kenny J, Manjanatha M, Mahadevan B, Moore MM, Ouédraogo G, Stankowski LF, Tanir JY. Genotoxicity Assessment of Nanomaterials: Recommendations on Best Practices, Assays, and Methods. Toxicol Sci 2019; 164:391-416. [PMID: 29701824 DOI: 10.1093/toxsci/kfy100] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Nanomaterials (NMs) present unique challenges in safety evaluation. An international working group, the Genetic Toxicology Technical Committee of the International Life Sciences Institute's Health and Environmental Sciences Institute, has addressed issues related to the genotoxicity assessment of NMs. A critical review of published data has been followed by recommendations on methods alterations and best practices for the standard genotoxicity assays: bacterial reverse mutation (Ames); in vitro mammalian assays for mutations, chromosomal aberrations, micronucleus induction, or DNA strand breaks (comet); and in vivo assays for genetic damage (micronucleus, comet and transgenic mutation assays). The analysis found a great diversity of tests and systems used for in vitro assays; many did not meet criteria for a valid test, and/or did not use validated cells and methods in the Organization for Economic Co-operation and Development Test Guidelines, and so these results could not be interpreted. In vivo assays were less common but better performed. It was not possible to develop conclusions on test system agreement, NM activity, or mechanism of action. However, the limited responses observed for most NMs were consistent with indirect genotoxic effects, rather than direct interaction of NMs with DNA. We propose a revised genotoxicity test battery for NMs that includes in vitro mammalian cell mutagenicity and clastogenicity assessments; in vivo assessments would be added only if warranted by information on specific organ exposure or sequestration of NMs. The bacterial assays are generally uninformative for NMs due to limited particle uptake and possible lack of mechanistic relevance, and are thus omitted in our recommended test battery for NM assessment. Recommendations include NM characterization in the test medium, verification of uptake into target cells, and limited assay-specific methods alterations to avoid interference with uptake or endpoint analysis. These recommendations are summarized in a Roadmap guideline for testing.
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Affiliation(s)
- Rosalie Elespuru
- Division of Biology, Chemistry and Materials Science, US Food and Drug Administration, CDRH/OSEL, Silver Spring, Maryland 20993
| | - Stefan Pfuhler
- The Procter & Gamble Company, Mason Business Centre, Mason, Ohio 45040
| | | | - Tao Chen
- Division of Genetic and Molecular Toxicology, US Food and Drug Administration, NCTR, Jefferson, Arkansas 72079
| | - Shareen H Doak
- Institute of Life Science, Swansea University Medical School, Swansea, Wales SA2 8PP, UK
| | - Ann Doherty
- Discovery Safety, Drug Safety and Metabolism, IMED Biotech Unit, AstraZeneca Genetic Toxicology, AstraZeneca, Cambridge CB4 0WG, UK
| | | | - Julia Kenny
- Genetic Toxicology & Photosafety, David Jack Centre for Research & Development, GlaxoSmithKline, Ware, Hertfordshire SG12 0DP, UK
| | - Mugimane Manjanatha
- Division of Genetic and Molecular Toxicology, US Food and Drug Administration, NCTR, Jefferson, Arkansas 72079
| | - Brinda Mahadevan
- Global Pre-clinical Development Innovation & Development, Established Pharmaceuticals, Abbott, Mumbai 400072, India
| | | | | | | | - Jennifer Y Tanir
- ILSI Health and Environmental Sciences Institute (HESI), Washington, District of Columbia 20005
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Møller P, Jacobsen NR. Weight of evidence analysis for assessing the genotoxic potential of carbon nanotubes. Crit Rev Toxicol 2017; 47:867-884. [DOI: 10.1080/10408444.2017.1367755] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Copenhagen K, Denmark
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9
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Correia B, Lourenço J, Marques S, Nogueira V, Gavina A, da Graça Rasteiro M, Antunes F, Mendo S, Pereira R. Oxidative stress and genotoxicity of an organic and an inorganic nanomaterial to Eisenia andrei: SDS/DDAB nano-vesicles and titanium silicon oxide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 140:198-205. [PMID: 28260685 DOI: 10.1016/j.ecoenv.2017.02.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/22/2017] [Accepted: 02/23/2017] [Indexed: 06/06/2023]
Abstract
In the past few years the number of studies on the toxic effects of nanomaterials (NMs) in the environment increased significantly. Nonetheless, the data is still scarce, since there is a large number of NMs and new ones are being developed each day. Soils are extremely important for life, and are easily exposed to the released NMs, thus enhanced efforts are needed to study the impacts on soil biota. The objective of the present work was to determine if different concentrations of two NMs, one inorganic (TiSiO4) and other organic (nano-vesicles of sodium sodecyl sulfate/ didodecyl dimethylammonium bromide - SDS/DDAB), are genotoxic to soil invertebrates. Additionally, it was intended to understand whether, in the event of occurring, genotoxicity was caused by the incapability of the cells to deal with the oxidative stress caused by these NMs. With that purpose, Eisenia andrei were exposed for 30 days to the artificial OECD soil contaminated with different concentrations of the NMs being tested. After the exposure, coelomocytes were extracted from earthworms and DNA damage was measured by the comet assay. The activity of antioxidant enzymes (e.g. glutathione peroxidase, glutathione reductase and glutathione-S-Transferase) and lipid peroxidation were also assessed. The results showed that both NMs were genotoxic, particularly TiSiO4 for which significant DNA damages were recorded for concentrations above 444mg of TiSiO4-NM/kg of soildw. Since no statistically significant differences were found in the tested antioxidant enzymes and in lipid peroxidation, the mechanism of genotoxicity of these NMs seemed to be unrelated with oxidative stress.
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Affiliation(s)
- Bruno Correia
- Departmento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM - Centro de Estudos do Ambiente e do Mar, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Joana Lourenço
- Departmento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM - Centro de Estudos do Ambiente e do Mar, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Sérgio Marques
- Departmento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM - Centro de Estudos do Ambiente e do Mar, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Verónica Nogueira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Departamento de Biologia da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Ana Gavina
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Departamento de Biologia da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Maria da Graça Rasteiro
- Department of Chemical Engineering & CIEPQPF & University of Coimbra, 3030-290 Coimbra, Portugal
| | - Filipe Antunes
- Department of Chemical Engineering & CIEPQPF & University of Coimbra, 3030-290 Coimbra, Portugal
| | - Sónia Mendo
- Departmento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM - Centro de Estudos do Ambiente e do Mar, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Ruth Pereira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Departamento de Biologia da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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10
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Li L, Bai W, Wang X, Gu C, Jin G, Tu J. Mechanical Properties and in Vitro and in Vivo Biocompatibility of a-C/a-C:Ti Nanomultilayer Films on Ti6Al4V Alloy as Medical Implants. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15933-15942. [PMID: 28467042 DOI: 10.1021/acsami.7b02552] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hydrogen-free a-C/a-C:Ti nanomultilayer films are deposited on medical Ti6Al4V alloy using a closed field unbalanced magnetron sputtering under graded bias voltage. The mechanical and tribological properties of the nanomultilayer films are performed on the nanoindentor, Rockwell and scratch tests, and ball-on-disk tribometer. The biological properties are evaluated by cell cytotoxicity, genotoxicity, subchronic systemic toxicity and implant. The hard a-C/a-C:Ti nanomultilayer films on medical alloy exhibit high adhesion strength and excellent tribological properties in both ambient air and Hank's solution. Biocompatibility results reveal the film no cytotoxity, no genotoxicity, no subchronic systemic toxicity and no contraindications in implant systems. Because of excellent mechanical properties and biosafety, the carbon-based films on medical alloy unveils a prospective application in medical implants.
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Affiliation(s)
- Lingling Li
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Wenqi Bai
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Xiuli Wang
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Changdong Gu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Gong Jin
- ZhongAo HuiCheng Technology Co. Ltd. , Beijing 100176, China
| | - Jiangping Tu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China
- ZhongAo HuiCheng Technology Co. Ltd. , Beijing 100176, China
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11
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Kuempel ED, Jaurand MC, Møller P, Morimoto Y, Kobayashi N, Pinkerton KE, Sargent LM, Vermeulen RCH, Fubini B, Kane AB. Evaluating the mechanistic evidence and key data gaps in assessing the potential carcinogenicity of carbon nanotubes and nanofibers in humans. Crit Rev Toxicol 2017; 47:1-58. [PMID: 27537422 PMCID: PMC5555643 DOI: 10.1080/10408444.2016.1206061] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 06/22/2016] [Indexed: 12/31/2022]
Abstract
In an evaluation of carbon nanotubes (CNTs) for the IARC Monograph 111, the Mechanisms Subgroup was tasked with assessing the strength of evidence on the potential carcinogenicity of CNTs in humans. The mechanistic evidence was considered to be not strong enough to alter the evaluations based on the animal data. In this paper, we provide an extended, in-depth examination of the in vivo and in vitro experimental studies according to current hypotheses on the carcinogenicity of inhaled particles and fibers. We cite additional studies of CNTs that were not available at the time of the IARC meeting in October 2014, and extend our evaluation to include carbon nanofibers (CNFs). Finally, we identify key data gaps and suggest research needs to reduce uncertainty. The focus of this review is on the cancer risk to workers exposed to airborne CNT or CNF during the production and use of these materials. The findings of this review, in general, affirm those of the original evaluation on the inadequate or limited evidence of carcinogenicity for most types of CNTs and CNFs at this time, and possible carcinogenicity of one type of CNT (MWCNT-7). The key evidence gaps to be filled by research include: investigation of possible associations between in vitro and early-stage in vivo events that may be predictive of lung cancer or mesothelioma, and systematic analysis of dose-response relationships across materials, including evaluation of the influence of physico-chemical properties and experimental factors on the observation of nonmalignant and malignant endpoints.
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Affiliation(s)
- Eileen D Kuempel
- a National Institute for Occupational Safety and Health , Cincinnati , OH , USA
| | - Marie-Claude Jaurand
- b Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche , UMR 1162 , Paris , France
- c Labex Immuno-Oncology, Sorbonne Paris Cité, University of Paris Descartes , Paris , France
- d University Institute of Hematology, Sorbonne Paris Cité, University of Paris Diderot , Paris , France
- e University of Paris 13, Sorbonne Paris Cité , Saint-Denis , France
| | - Peter Møller
- f Department of Public Health , University of Copenhagen , Copenhagen , Denmark
| | - Yasuo Morimoto
- g Department of Occupational Pneumology , University of Occupational and Environmental Health , Kitakyushu City , Japan
| | | | - Kent E Pinkerton
- i Center for Health and the Environment, University of California , Davis , California , USA
| | - Linda M Sargent
- j National Institute for Occupational Safety and Health , Morgantown , West Virginia , USA
| | - Roel C H Vermeulen
- k Institute for Risk Assessment Sciences, Utrecht University , Utrecht , The Netherlands
| | - Bice Fubini
- l Department of Chemistry and "G.Scansetti" Interdepartmental Center , Università degli Studi di Torino , Torino , Italy
| | - Agnes B Kane
- m Department of Pathology and Laboratory Medicine , Brown University , Providence , RI , USA
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Røe OD, Stella GM. Malignant pleural mesothelioma: history, controversy and future of a manmade epidemic. Eur Respir Rev 2015; 24:115-31. [PMID: 25726562 PMCID: PMC9487774 DOI: 10.1183/09059180.00007014] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Asbestos is the term for a family of naturally occurring minerals that have been used on a small scale since ancient times. Industrialisation demanded increased mining and refining in the 20th century, and in 1960, Wagner, Sleggs and Marchand from South Africa linked asbestos to mesothelioma, paving the way to the current knowledge of the aetiology, epidemiology and biology of malignant pleural mesothelioma. Pleural mesothelioma is one of the most lethal cancers, with increasing incidence worldwide. This review will give some snapshots of the history of pleural mesothelioma discovery, and the body of epidemiological and biological research, including some of the controversies and unresolved questions. Translational research is currently unravelling novel circulating biomarkers for earlier diagnosis and novel treatment targets. Current breakthrough discoveries of clinically promising noninvasive biomarkers, such as the 13-protein signature, microRNAs and the BAP1 mesothelioma/cancer syndrome, are highlighted. The asbestos history is a lesson to not be repeated, but here we also review recent in vivo and in vitro studies showing that manmade carbon nanofibres could pose a similar danger to human health. This should be taken seriously by regulatory bodies to ensure thorough testing of novel materials before release in the society. Malignant pleural mesothelioma is a cancer with increasing death tolls due to the past and present use of asbestoshttp://ow.ly/DhA2y
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Cytotoxicity and genotoxicity of panel of single- and multiwalled carbon nanotubes: in vitro effects on normal Syrian hamster embryo and immortalized v79 hamster lung cells. J Toxicol 2014; 2014:872195. [PMID: 25548561 PMCID: PMC4274832 DOI: 10.1155/2014/872195] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 09/15/2014] [Accepted: 11/18/2014] [Indexed: 12/28/2022] Open
Abstract
Carbon nanotubes (CNTs) belong to a specific class of nanomaterials with unique properties. Because of their anticipated use in a wide range of industrial applications, their toxicity is of increasing concern. In order to determine whether specific physicochemical characteristics of CNTs are responsible for their toxicological effects, we investigated the cytotoxic and genotoxic effects of eight CNTs representative of each of the commonly encountered classes: single- SW-, double- DW-, and multiwalled (MW) CNTs, purified and raw. In addition, because most previous studies of CNT toxicity were conducted on immortalized cell lines, we decided to compare results obtained from V79 cells, an established cell line, with results from SHE (Syrian hamster embryo) cells, an easy-to-handle normal cell model.
After 24 hours of treatment, MWCNTs were generally found to be more cytotoxic than SW- or DWCNTs. MWCNTs also provoked more genotoxic effects. No correlation could be found between CNT genotoxicity and metal impurities, length, surface area, or induction of cellular oxidative stress, but genotoxicity was seen to increase with CNT width. The toxicity observed for some CNTs leads us to suggest that they might also act by interfering with the cell cycle, but no significant differences were observed between normal and immortalized cells.
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