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Teixeira J, Bessa MJ, Delerue-Matos C, Sarmento B, Santos-Silva A, Rodrigues F, Oliveira M. Firefighters' personal exposure to gaseous PAHs during controlled forest fires: A case study with estimation of respiratory health risks and in vitro toxicity. Sci Total Environ 2024; 908:168364. [PMID: 37963534 DOI: 10.1016/j.scitotenv.2023.168364] [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: 07/19/2023] [Revised: 10/02/2023] [Accepted: 11/04/2023] [Indexed: 11/16/2023]
Abstract
Firefighters are daily exposed to adverse health-hazardous pollutants. Polycyclic aromatic hydrocarbons (PAHs), well known endocrine disruptors with carcinogenic, mutagenic, and teratogenic properties, are among the most relevant pollutants. The characterization of firefighters' occupational exposure to airborne PAHs remains limited; information is scarce for European firefighters. Also, the in vitro assessment of firefighters' respiratory health risks is inexistent. To reply to these scientific gaps, this work characterizes the levels of gaseous PAH in firefighters' personal air during regular working activities at controlled forest fires and at fire stations (control group). Breathable levels were 2.2-26.7 times higher during fire events than in the control group (2.63-32.63 μg/m3versus 1.22 μg/m3, p < 0.001); the available occupational guidelines (100 and 200 μg/m3 defined by the US National Institute for Occupational Safety and Health and the North American Occupational Safety and Health Administration, respectively) were not exceeded. Concentrations of (possible/probable) carcinogenic PAHs were 1.9-15.3 times superior during firefighting (p < 0.001). Increased values of total benzo(a)pyrene equivalents (p = 0.101), dose rates (p < 0.001), and carcinogenic risks (p = 0.063) were estimated in firefighters during controlled fires comparatively with the control group. Firefighters' breathable gaseous phase collected during fire events contributed to induce a significant viability decrease (<70 %; p < 0.05) in A549 and Calu-3 cell lines. The principal component analysis (PCA) allowed the differentiation between firefighters participating in controlled fire events from the control group. PCA analysis demonstrated the potential of PAHs to distinguish different sources of firefighters´ occupational exposure and of combining estimated health risk parameters with in vitro toxicities determined with human-breathable air collected during real-life scenarios. Overall, the participation in controlled fire events contributes to the respiratory health burden of firefighting forces. However, more studies are needed to corroborate these preliminary findings, explore the respiratory toxicological mechanisms, and support the implementation of preventive actions and mitigation strategies to pursue firefighters' health.
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Affiliation(s)
- Joana Teixeira
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; REQUIMTE/UCIBIO, Unidade de Ciências Biomoleculares Aplicadas, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Maria João Bessa
- UNIPRO - Unidade de Investigação em Patologia e Reabilitação Oral, Instituto Universitário de Ciências da Saúde (IUCS), CESPU, 4585-116 Gandra, Portugal
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
| | - Bruno Sarmento
- UNIPRO - Unidade de Investigação em Patologia e Reabilitação Oral, Instituto Universitário de Ciências da Saúde (IUCS), CESPU, 4585-116 Gandra, Portugal; I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Alice Santos-Silva
- REQUIMTE/UCIBIO, Unidade de Ciências Biomoleculares Aplicadas, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal; Laboratório Associado i4HB, Instituto para a Saúde e a Bioeconomia, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Francisca Rodrigues
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
| | - Marta Oliveira
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal.
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Brandão F, Costa C, Bessa MJ, Valdiglesias V, Hellack B, Haase A, Fraga S, Teixeira JP. Multiparametric in vitro genotoxicity assessment of different variants of amorphous silica nanomaterials in rat alveolar epithelial cells. Nanotoxicology 2023; 17:511-528. [PMID: 37855675 DOI: 10.1080/17435390.2023.2265481] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/20/2023] [Indexed: 10/20/2023]
Abstract
The hazard posed to human health by inhaled amorphous silica nanomaterials (aSiO2 NM) remains uncertain. Herein, we assessed the cyto- and genotoxicity of aSiO2 NM variants covering different sizes (7, 15, and 40 nm) and surface modifications (unmodified, phosphonate-, amino- and trimethylsilyl-modified) on rat alveolar epithelial (RLE-6TN) cells. Cytotoxicity was evaluated at 24 h after exposure to the aSiO2 NM variants by the lactate dehydrogenase (LDH) release and WST-1 reduction assays, while genotoxicity was assessed using different endpoints: DNA damage (single- and double-strand breaks [SSB and DSB]) by the comet assay for all aSiO2 NM variants; cell cycle progression and γ-H2AX levels (DSB) by flow cytometry for those variants that presented higher cytotoxic and DNA damaging potential. The variants with higher surface area demonstrated a higher cytotoxic potential (SiO2_7, SiO2_15_Unmod, SiO2_15_Amino, and SiO2_15_Phospho). SiO2_40 was the only variant that induced significant DNA damage on RLE-6TN cells. On the other hand, all tested variants (SiO2_7, SiO2_15_Unmod, SiO2_15_Amino, and SiO2_40) significantly increased total γ-H2AX levels. At high concentrations (28 µg/cm2), a decrease in G0/G1 subpopulation was accompanied by a significant increase in S and G2/M sub-populations after exposure to all tested materials except for SiO2_40 which did not affect cell cycle progression. Based on the obtained data, the tested variants can be ranked for its genotoxic DNA damage potential as follows: SiO2_7 = SiO2_40 = SiO2_15_Unmod > SiO2_15_Amino. Our study supports the usefulness of multiparametric approaches to improve the understanding on NM mechanisms of action and hazard prediction.
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Affiliation(s)
- Fátima Brandão
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Carla Costa
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Maria João Bessa
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Vanessa Valdiglesias
- Departamento de Biología, Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química e Bioloxía - CICA, A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - Bryan Hellack
- Institute of Energy and Environmental Technology (IUTA) e.V, Duisburg, Germany
- German Environment Agency (UBA), Dessau, Germany
| | - Andrea Haase
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Sónia Fraga
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Paulo Teixeira
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
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Bessa MJ, Sarmento B, Oliveira M, Rodrigues F. In vitro data for fire pollutants: contribution of studies using human cell models towards firefighters' occupational. J Toxicol Environ Health B Crit Rev 2023; 26:238-255. [PMID: 36883725 DOI: 10.1080/10937404.2023.2187909] [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] [Indexed: 06/18/2023]
Abstract
Firefighters are the principal line of defense against fires, being at elevated risk of exposure to health-relevant pollutants released during fires and burning processes. Although many biomonitoring studies exist, only a limited number of human in vitro investigations in fire risk assessment are currently available. In vitro studies stand out as valuable tools to assess the toxicity mechanisms involved following exposure to fire pollutants at a cellular level. The aim of the present review was to contextualize existing in vitro studies using human cell models exposed to chemicals emitted from fire emissions and wood smoke and discuss the implications of the observed toxic outcomes on adverse health effects detected in firefighters. Most of the reported in vitro investigations focused on monocultures respiratory models and exposure to particulate matter (PM) extracts collected from fire effluents. Overall, (1) a decrease in cellular viability, (2) enhanced oxidative stress, (3) increased pro-inflammatory cytokines levels and (4) elevated cell death frequencies were noted. However, limited information remains regarding the toxicity mechanisms initiated by firefighting activities. Hence, more studies employing advanced in vitro models and exposure systems using human cell lines are urgently needed taking into consideration different routes of exposure and health-related pollutants released from fires. Data are needed to establish and define firefighters' occupational exposure limits and to propose mitigation strategies to promote beneficial human health.
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Affiliation(s)
- Maria João Bessa
- UNIPRO - Unidade de Investigação em Patologia e Reabilitação Oral, Instituto Universitário de Ciências da Saúde (IUCS), CESPU, Gandra, Portugal
| | - Bruno Sarmento
- UNIPRO - Unidade de Investigação em Patologia e Reabilitação Oral, Instituto Universitário de Ciências da Saúde (IUCS), CESPU, Gandra, Portugal
- i3S - Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
- INEB - Institute of Biomedical Engineering, University of Porto, Porto, Portugal
| | - Marta Oliveira
- REQUIMTE/LAQV, ISEP, Polytechnique of Porto, Porto, Portugal
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Bessa MJ, Brandão F, Rosário F, Moreira L, Reis AT, Valdiglesias V, Laffon B, Fraga S, Teixeira JP. Assessing the in vitro toxicity of airborne (nano)particles to the human respiratory system: from basic to advanced models. J Toxicol Environ Health B Crit Rev 2023; 26:67-96. [PMID: 36692141 DOI: 10.1080/10937404.2023.2166638] [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] [Indexed: 06/17/2023]
Abstract
Several studies have been conducted to address the potential adverse health risks attributed to exposure to nanoscale materials. While in vivo studies are fundamental for identifying the relationship between dose and occurrence of adverse effects, in vitro model systems provide important information regarding the mechanism(s) of action at the molecular level. With a special focus on exposure to inhaled (nano)particulate material toxicity assessment, this review provides an overview of the available human respiratory models and exposure systems for in vitro testing, advantages, limitations, and existing investigations using models of different complexity. A brief overview of the human respiratory system, pathway and fate of inhaled (nano)particles is also presented.
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Affiliation(s)
- Maria João Bessa
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Fátima Brandão
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Fernanda Rosário
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - Luciana Moreira
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - Ana Teresa Reis
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - Vanessa Valdiglesias
- Departamento de Biología, Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química e Bioloxía - CICA, A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - Blanca Laffon
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
- Departamento de Psicología, Universidade da Coruña, Grupo DICOMOSA, Centro Interdisciplinar de Química e Bioloxía - CICA, A Coruña, Spain
| | - Sónia Fraga
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Paulo Teixeira
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
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5
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Viana M, Salmatonidis A, Bezantakos S, Ribalta C, Moreno N, Córdoba P, Cassee FR, Boere J, Fraga S, Teixeira JP, Bessa MJ, Monfort E. Characterizing the Chemical Profile of Incidental Ultrafine Particles for Toxicity Assessment Using an Aerosol Concentrator. Ann Work Expo Health 2021; 65:966-978. [PMID: 34314505 PMCID: PMC8501988 DOI: 10.1093/annweh/wxab011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/01/2020] [Accepted: 01/28/2021] [Indexed: 01/04/2023] Open
Abstract
Incidental ultrafine particles (UFPs) constitute a key pollutant in industrial workplaces. However, characterizing their chemical properties for exposure and toxicity assessments still remains a challenge. In this work, the performance of an aerosol concentrator (Versatile Aerosol Concentration Enrichment System, VACES) was assessed to simultaneously sample UFPs on filter substrates (for chemical analysis) and as liquid suspensions (for toxicity assessment), in a high UFP concentration scenario. An industrial case study was selected where metal-containing UFPs were emitted during thermal spraying of ceramic coatings. Results evidenced the comparability of the VACES system with online monitors in terms of UFP particle mass (for concentrations up to 95 µg UFP/m3) and between filters and liquid suspensions, in terms of particle composition (for concentrations up to 1000 µg/m3). This supports the applicability of this tool for UFP collection in view of chemical and toxicological characterization for incidental UFPs. In the industrial setting evaluated, results showed that the spraying temperature was a driver of fractionation of metals between UF (<0.2 µm) and fine (0.2-2.5 µm) particles. Potentially health hazardous metals (Ni, Cr) were enriched in UFPs and depleted in the fine particle fraction. Metals vaporized at high temperatures and concentrated in the UF fraction through nucleation processes. Results evidenced the need to understand incidental particle formation mechanisms due to their direct implications on particle composition and, thus, exposure. It is advisable that personal exposure and subsequent risk assessments in occupational settings should include dedicated metrics to monitor UFPs (especially, incidental).
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Affiliation(s)
- M Viana
- IDAEA-CSIC, Barcelona, Spain
| | | | - S Bezantakos
- Université du Littoral Côte d’ ‘Opale, Dunkerque, France
| | | | | | | | | | - J Boere
- RIVM, Bilthoven, The Netherlands
| | - S Fraga
- Department of Environmental Health, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - J P Teixeira
- Department of Environmental Health, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - M J Bessa
- Department of Environmental Health, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
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Brandão F, Costa C, Bessa MJ, Dumortier E, Debacq-Chainiaux F, Hubaux R, Salmon M, Laloy J, Stan MS, Hermenean A, Gharbia S, Dinischiotu A, Bannuscher A, Hellack B, Haase A, Fraga S, Teixeira JP. Genotoxicity and Gene Expression in the Rat Lung Tissue following Instillation and Inhalation of Different Variants of Amorphous Silica Nanomaterials (aSiO 2 NM). Nanomaterials (Basel) 2021; 11:1502. [PMID: 34200147 PMCID: PMC8228975 DOI: 10.3390/nano11061502] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 12/15/2022]
Abstract
Several reports on amorphous silica nanomaterial (aSiO2 NM) toxicity have been questioning their safety. Herein, we investigated the in vivo pulmonary toxicity of four variants of aSiO2 NM: SiO2_15_Unmod, SiO2_15_Amino, SiO2_7 and SiO2_40. We focused on alterations in lung DNA and protein integrity, and gene expression following single intratracheal instillation in rats. Additionally, a short-term inhalation study (STIS) was carried out for SiO2_7, using TiO2_NM105 as a benchmark NM. In the instillation study, a significant but slight increase in oxidative DNA damage in rats exposed to the highest instilled dose (0.36 mg/rat) of SiO2_15_Amino was observed in the recovery (R) group. Exposure to SiO2_7 or SiO2_40 markedly increased oxidative DNA lesions in rat lung cells of the exposure (E) group at every tested dose. This damage seems to be repaired, since no changes compared to controls were observed in the R groups. In STIS, a significant increase in DNA strand breaks of the lung cells exposed to 0.5 mg/m3 of SiO2_7 or 50 mg/m3 of TiO2_NM105 was observed in both groups. The detected gene expression changes suggest that oxidative stress and/or inflammation pathways are likely implicated in the induction of (oxidative) DNA damage. Overall, all tested aSiO2 NM were not associated with marked in vivo toxicity following instillation or STIS. The genotoxicity findings for SiO2_7 from instillation and STIS are concordant; however, changes in STIS animals were more permanent/difficult to revert.
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Affiliation(s)
- Fátima Brandão
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (C.C.); (M.J.B.); (J.P.T.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Environmental Health Department, National Institute of Health Dr. Ricardo Jorge, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Carla Costa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (C.C.); (M.J.B.); (J.P.T.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Environmental Health Department, National Institute of Health Dr. Ricardo Jorge, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
| | - Maria João Bessa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (C.C.); (M.J.B.); (J.P.T.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Environmental Health Department, National Institute of Health Dr. Ricardo Jorge, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Elise Dumortier
- Unité de Recherche en Biologie Cellulaire (URBC), Namur Research Institute for Life Sciences (Narilis), University of Namur, 5000 Namur, Belgium; (E.D.); (F.D.-C.)
| | - Florence Debacq-Chainiaux
- Unité de Recherche en Biologie Cellulaire (URBC), Namur Research Institute for Life Sciences (Narilis), University of Namur, 5000 Namur, Belgium; (E.D.); (F.D.-C.)
| | - Roland Hubaux
- StratiCELL Laboratories, Research and Development, 5032 Les Isnes, Belgium; (R.H.); (M.S.)
| | - Michel Salmon
- StratiCELL Laboratories, Research and Development, 5032 Les Isnes, Belgium; (R.H.); (M.S.)
| | - Julie Laloy
- Namur Nanosafety Centre, Department of Pharmacy, Namur Research Institute for Life Sciences (Narilis), University of Namur, 5000 Namur, Belgium;
| | - Miruna S. Stan
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (M.S.S.); (A.H.); (S.G.); (A.D.)
| | - Anca Hermenean
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (M.S.S.); (A.H.); (S.G.); (A.D.)
- “Aurel Ardelean” Institute of Life Sciences, “Vasile Goldis” Western University of Arad, 310414 Arad, Romania
| | - Sami Gharbia
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (M.S.S.); (A.H.); (S.G.); (A.D.)
- “Aurel Ardelean” Institute of Life Sciences, “Vasile Goldis” Western University of Arad, 310414 Arad, Romania
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (M.S.S.); (A.H.); (S.G.); (A.D.)
| | - Anne Bannuscher
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany; (A.B.); (A.H.)
- Adolphe Merkle Institute (AMI), University of Fribourg, 1700 Fribourg, Switzerland
| | - Bryan Hellack
- Institute of Energy and Environmental Technology (IUTA) e.V., 47229 Duisburg, Germany;
- German Environment Agency (UBA), 06844 Dessau-Roβlau, Germany
| | - Andrea Haase
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany; (A.B.); (A.H.)
| | - Sónia Fraga
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (C.C.); (M.J.B.); (J.P.T.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Environmental Health Department, National Institute of Health Dr. Ricardo Jorge, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
| | - João Paulo Teixeira
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (C.C.); (M.J.B.); (J.P.T.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Environmental Health Department, National Institute of Health Dr. Ricardo Jorge, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
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Bessa MJ, Brandão F, Fokkens P, Cassee FR, Salmatonidis A, Viana M, Vulpoi A, Simon S, Monfort E, Teixeira JP, Fraga S. Toxicity assessment of industrial engineered and airborne process-generated nanoparticles in a 3D human airway epithelial in vitro model. Nanotoxicology 2021; 15:542-557. [PMID: 33734024 DOI: 10.1080/17435390.2021.1897698] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The advanced ceramic technology has been pointed out as a potentially relevant case of occupational exposure to nanoparticles (NP). Not only when nanoscale powders are being used for production, but also in the high-temperature processing of ceramic materials there is also a high potential for NP release into the workplace environment. In vitro toxicity of engineered NP (ENP) [antimony tin oxide (Sb2O3•SnO2; ATO); zirconium oxide (ZrO2)], as well as process-generated NP (PGNP), and fine particles (PGFP), was assessed in MucilAir™ cultures at air-liquid interface (ALI). Cultures were exposed during three consecutive days to varying doses of the aerosolized NP. General cytotoxicity [lactate dehydrogenase (LDH) release, WST-1 metabolization], (oxidative) DNA damage, and the levels of pro-inflammatory mediators (IL-8 and MCP-1) were assessed. Data revealed that ENP (5.56 µg ATO/cm2 and 10.98 µg ZrO2/cm2) only caused mild cytotoxicity at early timepoints (24 h), whereas cells seemed to recover quickly since no significant changes in cytotoxicity were observed at late timepoints (72 h). No meaningful effects of the ENP were observed regarding DNA damage and cytokine levels. PGFP affected cell viability at dose levels as low as ∼9 µg/cm2, which was not seen for PGNP. However, exposure to PGNP (∼4.5 µg/cm2) caused an increase in oxidative DNA damage. These results indicated that PGFP and PGNP exhibit higher toxicity potential than ENP in mass per area unit. However, the presence of a mucociliary apparatus, as it occurs in vivo as a defense mechanism, seems to considerably attenuate the observed toxic effects. Our findings highlight the potential hazard associated with exposure to incidental NP in industrial settings.
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Affiliation(s)
- Maria João Bessa
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal.,EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Fátima Brandão
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal.,EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Paul Fokkens
- National Institute for Public Health and Environment (RIVM), Bilthoven, The Netherlands
| | - Flemming R Cassee
- National Institute for Public Health and Environment (RIVM), Bilthoven, The Netherlands.,Institute for Risk Assessment Sciences (IRAS), Utrecht, The Netherlands
| | - Apostolos Salmatonidis
- Institute of Environmental Assessment and Water Research, Spanish Research Council (IDAEA-CSIC), Barcelona, Spain.,LEITAT Technological Center, Barcelona, Spain
| | - Mar Viana
- Institute of Environmental Assessment and Water Research, Spanish Research Council (IDAEA-CSIC), Barcelona, Spain
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Simion Simon
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Eliseo Monfort
- Institute of Ceramic Technology (ITC), Universitat Jaume I, Castellón, Spain
| | - João Paulo Teixeira
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal.,EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - Sónia Fraga
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal.,EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
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Bessa MJ, Brandão F, Viana M, Gomes JF, Monfort E, Cassee FR, Fraga S, Teixeira JP. Nanoparticle exposure and hazard in the ceramic industry: an overview of potential sources, toxicity and health effects. Environ Res 2020; 184:109297. [PMID: 32155489 DOI: 10.1016/j.envres.2020.109297] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 05/15/2019] [Revised: 02/22/2020] [Accepted: 02/23/2020] [Indexed: 06/10/2023]
Abstract
The ceramic industry is an industrial sector of great impact in the global economy that has been benefiting from advances in materials and processing technologies. Ceramic manufacturing has a strong potential for airborne particle formation and emission, namely of ultrafine particles (UFP) and nanoparticles (NP), meaning that workers of those industries are at risk of potential exposure to these particles. At present, little is known on the impact of engineered nanoparticles (ENP) on the environment and human health and no established Occupational Exposure Limits (OEL) or specific regulations to airborne nanoparticles (ANP) exposure exist raising concerns about the possible consequences of such exposure. In this paper, we provide an overview of the current knowledge on occupational exposure to NP in the ceramic industry and their impact on human health. Possible sources and exposure scenarios, a summary of the existing methods for evaluation and monitoring of ANP in the workplace environment and proposed Nano Reference Values (NRV) for different classes of NP are presented. Case studies on occupational exposure to ANP generated at different stages of the ceramic manufacturing process are described. Finally, the toxicological potential of intentional and unintentional ANP that have been identified in the ceramic industry workplace environment is discussed based on the existing evidence from in vitro and in vivo inhalation toxicity studies.
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Affiliation(s)
- Maria João Bessa
- Instituto Nacional de Saúde Doutor Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| | - Fátima Brandão
- Instituto Nacional de Saúde Doutor Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.
| | - Mar Viana
- Institute of Environmental Assessment and Water Research (IDÆA-CSIC), Barcelona, Spain.
| | - João F Gomes
- CERENA, Centro de Recursos Naturais e Ambiente/Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal; ISEL - Instituto Superior de Engenharia de Lisboa, Lisboa, Portugal.
| | - Eliseo Monfort
- Institute of Ceramic Technology (ITC), Universitat Jaume I, 12006, Castellón, Spain.
| | - Flemming R Cassee
- National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Institute for Risk Assessment Studies, Utrecht University, Utrecht, the Netherlands.
| | - Sónia Fraga
- Instituto Nacional de Saúde Doutor Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.
| | - João Paulo Teixeira
- Instituto Nacional de Saúde Doutor Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.
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Rosário F, Bessa MJ, Brandão F, Costa C, Lopes CB, Estrada AC, Tavares DS, Teixeira JP, Reis AT. Unravelling the Potential Cytotoxic Effects of Metal Oxide Nanoparticles and Metal(Loid) Mixtures on A549 Human Cell Line. Nanomaterials (Basel) 2020; 10:E447. [PMID: 32131449 PMCID: PMC7153484 DOI: 10.3390/nano10030447] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 12/31/2022]
Abstract
Humans are typically exposed to environmental contaminants' mixtures that result in different toxicity than exposure to the individual counterparts. Yet, the toxicology of chemical mixtures has been overlooked. This work aims at assessing and comparing viability and cell cycle of A549 cells after exposure to single and binary mixtures of: titanium dioxide nanoparticles (TiO2NP) 0.75-75 mg/L; cerium oxide nanoparticles (CeO2NP) 0.0.75-10 μg/L; arsenic (As) 0.75-2.5 mg/L; and mercury (Hg) 5-100 mg/L. Viability was assessed through water-soluble tetrazolium (WST-1) and thiazolyl blue tetrazolium bromide (MTT) (24 h exposure) and clonogenic (seven-day exposure) assays. Cell cycle alterations were explored by flow cytometry. Viability was affected in a dose- and time-dependent manner. Prolonged exposure caused inhibition of cell proliferation even at low concentrations. Cell-cycle progression was affected by TiO2NP 75 mg/L, and As 0.75 and 2.5 μg/L, increasing the cell proportion at G0/G1 phase. Combined exposure of TiO2NP or CeO2NP mitigated As adverse effects, increasing the cell surviving factor, but cell cycle alterations were still observed. Only CeO2NP co-exposure reduced Hg toxicity, translated in a decrease of cells in Sub-G1. Toxicity was diminished for both NPs co-exposure compared to its toxicity alone, but a marked toxicity for the highest concentrations was observed for longer exposures. These findings prove that joint toxicity of contaminants must not be disregarded.
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Grants
- PTDC/SAU-PUB/29651/2017 COMPETE 2020, Portugal 2020 and European Union, through FEDER
- SFRH/BPD/122112/2016 (A.T.Reis) FCT - Fundação para a Ciência e a Tecnologia, I.P.
- contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19 (C.B. Lopes and A.C. Estrada) FCT - Fundação para a Ciência e a Tecnologia, I.P.
- SFRH/BD/101060/2014 (F. Brandão) FCT - Fundação para a Ciência e a Tecnologia, I.P.
- SFRH/BD/12046/2016 (M.J. Bessa) FCT - Fundação para a Ciência e a Tecnologia, I.P.
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Affiliation(s)
- Fernanda Rosário
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Maria João Bessa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Fátima Brandão
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Carla Costa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Cláudia B. Lopes
- Department of Chemistry and Aveiro Institute of Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.B.L.); (A.C.E.); (D.S.T.)
| | - Ana C. Estrada
- Department of Chemistry and Aveiro Institute of Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.B.L.); (A.C.E.); (D.S.T.)
| | - Daniela S. Tavares
- Department of Chemistry and Aveiro Institute of Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.B.L.); (A.C.E.); (D.S.T.)
- Department of Chemistry and Center of Environmental and Marine Studies (CESAM), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - João Paulo Teixeira
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Ana Teresa Reis
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
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Brandão F, Fernández-Bertólez N, Rosário F, Bessa MJ, Fraga S, Pásaro E, Teixeira JP, Laffon B, Valdiglesias V, Costa C. Genotoxicity of TiO 2 Nanoparticles in Four Different Human Cell Lines (A549, HEPG2, A172 and SH-SY5Y). Nanomaterials (Basel) 2020; 10:E412. [PMID: 32120981 PMCID: PMC7152841 DOI: 10.3390/nano10030412] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 11/16/2022]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have a wide variety of applications in many consumer products, including as food additives, increasing the concern about the possible hazards that TiO2 NPs may pose to human health. Although most previous studies have focused on the respiratory system, ingestion must also be considered as an important exposure route. Furthermore, after inhalation or ingestion, TiO2 NPs can reach several organs, such as the liver, brain or lungs. Taking this into consideration, the present study focuses on the uptake and potential genotoxicity (micronuclei induction) of TiO2 NPs on four human cell lines of diverse origin: lung cells (A549), liver cells (HepG2), glial cells (A172) and neurons (SH-SY5Y), using flow cytometry methods. Results showed a concentration-, time- and cell-type- dependent increase in TiO2 NPs uptake but no significant induction of micronuclei in any of the tested conditions. Data obtained reinforce the importance of cell model and testing protocols choice for toxicity assessment. However, some questions remain to be answered, namely on the role of cell culture media components on the agglomeration state and mitigation of TiO2 NPs toxic effects.
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Affiliation(s)
- Fátima Brandão
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (F.R.); (M.J.B.); (S.F.); (C.C.)
- Environmental Health Department, National Institute of Health, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Natalia Fernández-Bertólez
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071 A Coruña, Spain; (N.F.-B.); (E.P.); (B.L.); (V.V.)
| | - Fernanda Rosário
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (F.R.); (M.J.B.); (S.F.); (C.C.)
- Environmental Health Department, National Institute of Health, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
| | - Maria João Bessa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (F.R.); (M.J.B.); (S.F.); (C.C.)
- Environmental Health Department, National Institute of Health, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Sónia Fraga
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (F.R.); (M.J.B.); (S.F.); (C.C.)
- Environmental Health Department, National Institute of Health, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
| | - Eduardo Pásaro
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071 A Coruña, Spain; (N.F.-B.); (E.P.); (B.L.); (V.V.)
| | - João Paulo Teixeira
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (F.R.); (M.J.B.); (S.F.); (C.C.)
- Environmental Health Department, National Institute of Health, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
| | - Blanca Laffon
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071 A Coruña, Spain; (N.F.-B.); (E.P.); (B.L.); (V.V.)
| | - Vanessa Valdiglesias
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071 A Coruña, Spain; (N.F.-B.); (E.P.); (B.L.); (V.V.)
- Universidade da Coruña, Centro de Investigacións Científicas Avanzadas (CICA), Campus Elviña, 15071 A Coruña, Spain
| | - Carla Costa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, 4050-600 Porto, Portugal; (F.B.); (F.R.); (M.J.B.); (S.F.); (C.C.)
- Environmental Health Department, National Institute of Health, Rua Alexandre Herculano 321, 4000-053 Porto, Portugal
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Oliveira SMM, Barzotto ILM, Vieira L, Sene A, Radi PA, Fraga S, Bessa MJ, Teixeira JP, Carvalho ICS, da Silva NS. Tribocorrosion studies on diamond-like carbon film deposited by PECVD on 304 stainless steel in simulated body fluid. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/ab18e9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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12
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Bessa MJ, Brandão F, Querido MM, Costa C, Pereira CC, Valdiglesias V, Laffon B, Carriere M, Teixeira JP, Fraga S. Optimization of the harvesting and freezing conditions of human cell lines for DNA damage analysis by the alkaline comet assay. Mutat Res 2018; 845:402994. [PMID: 31561887 DOI: 10.1016/j.mrgentox.2018.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 12/06/2018] [Accepted: 12/09/2018] [Indexed: 10/27/2022]
Abstract
The comet assay is a commonly used method for in vitro and in vivo genotoxicity assessment. This versatile assay can be performed in a wide range of tissues and cell types. Although most of the studies use samples immediately processed after collection, frozen biological samples can also be used. The present study aimed to optimize a collection and freezing protocol to minimize the DNA damage associated with these procedures in human cell line samples for comet assay analysis. This study was conducted in glial A172 and lung alveolar epithelial A549 cells. Two cell detachment methods (mechanical vs enzymatic) and two cryoprotective media [FBS + 10% DMSO vs Cell Culture Media (CCM) + 10% DMSO] were tested, and DNA damage assessed at four time points following storage at -80 °C (one, two, four and eight weeks). In both cell lines, no differences in % tail intensity were detected between fresh and frozen cells up to eight weeks, irrespective of the harvesting method and freezing medium used. However, freshly isolated A172 cells exhibited a significant lower DNA damage when resuspended in CCM + 10% DMSO, while for A549 fresh cells the preferable harvesting method was the enzymatic one since it induced less DNA damage. Although both harvesting methods and cryoprotective media tested were found suitable, our data indicate that enzymatic harvesting and cryopreservation in CCM + 10% DMSO is a preferable method for DNA integrity preservation of human cell line samples for comet assay analysis. Our data also suggest that CCM is a preferable and cost-effective alternative to FBS in cryopreservation media. This optimized protocol allows the analysis of in vitro cell samples collected and frozen at different locations, with minimal interference on the basal DNA strand break levels in samples kept frozen up to eight weeks.
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Affiliation(s)
- Maria João Bessa
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
| | - Fátima Brandão
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
| | - Micaela Machado Querido
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
| | - Carla Costa
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
| | - Cristiana Costa Pereira
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
| | - Vanessa Valdiglesias
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Coruña, Spain.
| | - Blanca Laffon
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Coruña, Spain.
| | - Marie Carriere
- Université Grenoble-Alpes, CEA, CNRS, INAC-SyMMES, Chimie Interface Biologie pour l'Environnement, la Santé et la Toxicologie (CIBEST), France.
| | - João Paulo Teixeira
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
| | - Sónia Fraga
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Departamento de Saúde Ambiental, Porto, Portugal.
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Fernández-Bertólez N, Costa C, Bessa MJ, Park M, Carriere M, Dussert F, Teixeira JP, Pásaro E, Laffon B, Valdiglesias V. Assessment of oxidative damage induced by iron oxide nanoparticles on different nervous system cells. Mutat Res Genet Toxicol Environ Mutagen 2018; 845:402989. [PMID: 31561889 DOI: 10.1016/j.mrgentox.2018.11.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 07/24/2018] [Revised: 11/02/2018] [Accepted: 11/29/2018] [Indexed: 12/30/2022]
Abstract
Iron oxide nanoparticles (ION) have received much attention for their utility in biomedical applications, such as magnetic resonance imaging, drug delivery and hyperthermia, but concerns regarding their potential harmful effects are also growing. Even though ION may induce different toxic effects in a wide variety of cell types and animal systems, there is a notable lack of toxicological data on the human nervous system, particularly important given the increasing number of applications on this specific system. An important mechanism of nanotoxicity is reactive oxygen species (ROS) generation and oxidative stress. On this basis, the main objective of this work was to assess the oxidative potential of silica-coated (S-ION) and oleic acid-coated (O-ION) ION on human SH-SY5Y neuronal and A172 glial cells. To this aim, ability of ION to generate ROS (both in the absence and presence of cells) was determined, and consequences of oxidative potential were assessed (i) on DNA by means of the 8-oxo-7,8-dihydroguanine DNA glycosylase (OGG1)-modified comet assay, and (ii) on antioxidant reserves by analyzing ratio of reduced glutathione (GSH) to oxidized glutathione (GSSG). Conditions tested included a range of concentrations, two exposure times (3 and 24 h), and absence and presence of serum in the cell culture media. Results confirmed that, even though ION were not able to produce ROS in acellular environments, ROS formation was increased in the neuronal and glial cells by ION exposure, and was parallel to induction of oxidative DNA damage and, only in the case of neuronal cells treated with S-ION, to decreases in the GSH/GSSG ratio. Present findings suggest the production of oxidative stress as a potential action mechanism leading to the previously reported cellular effects, and indicate that ION may pose a health risk to human nervous system cells by generating oxidative stress, and thus should be used with caution.
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Affiliation(s)
- Natalia Fernández-Bertólez
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain; Universidade da Coruña, Department of Cell and Molecular Biology, Facultad de Ciencias, Campus A Zapateira s/n, 15071-A Coruña, Spain
| | - Carla Costa
- Portuguese National Institute of Health, Department of Environmental Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
| | - Maria João Bessa
- Portuguese National Institute of Health, Department of Environmental Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
| | - Margriet Park
- Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Marie Carriere
- Univ. Grenoble-Alpes, CEA, CNRS, INAC-SyMMES, Chimie Interface Biologie pour l'Environnement, la Santé et la Toxicologie (CIBEST), 38000 Grenoble, France
| | - Fanny Dussert
- Univ. Grenoble-Alpes, CEA, CNRS, INAC-SyMMES, Chimie Interface Biologie pour l'Environnement, la Santé et la Toxicologie (CIBEST), 38000 Grenoble, France
| | - João Paulo Teixeira
- Portuguese National Institute of Health, Department of Environmental Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
| | - Eduardo Pásaro
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain
| | - Blanca Laffon
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain.
| | - Vanessa Valdiglesias
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
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14
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Brandão F, Bessa MJ, Costa C, Fraga S, Haase A, Teixeira JP. Role of surface capping on the cytotoxicity of silica nanoparticles in rat alveolar epithelial cells. Toxicol Lett 2017. [DOI: 10.1016/j.toxlet.2017.07.526] [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: 11/25/2022]
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15
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Mesquita B, Lopes I, Silva S, Bessa MJ, Starykevich M, Carneiro J, Galvão TLP, Ferreira MGS, Tedim J, Teixeira JP, Fraga S. Gold nanorods induce early embryonic developmental delay and lethality in zebrafish (Danio rerio). J Toxicol Environ Health A 2017; 80:672-687. [PMID: 28696918 DOI: 10.1080/15287394.2017.1331597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to their unique electronic and optical features, gold nanoparticles (AuNP) have received a great deal of attention for application in different fields such as catalysis, electronics, and biomedicine. The large-volume manufacturing predicted for future decades and the inevitable release of these substances into the environment necessitated an assessment of potential adverse human and ecological risks due to exposure to AuNP. Accordingly, this study aimed to examine the acute and developmental toxicity attributed to a commercial suspension of Au nanorods stabilized with cetyltrimethylammonium bromide (CTAB-AuNR) using early embryonic stages of zebrafish (Danio rerio), a well-established model in ecotoxicology. Zebrafish embryos were exposed to CTAB-AuNR (0-150 µg/L) to determine for developmental assessment until 96 hr post fertilization (hpf) and lethality. Uptake of CTAB-AuNR by embryos and nanoparticles potential to induce DNA damage was also measured at 48 and 96 hpf. Analysis of the concentration-response curves with cumulative mortality at 96 hpf revealed a median lethal concentration (LC50,96h) of 110.2 μg/L. At sublethal concentrations, CTAB-AuNR suspensions were found to produce developmental abnormalities such as tail deformities, pericardial edema, decreased body length, and delayed eye, head, and tail elongation development. Further, less than 1% of the initial concentration of CTAB-AuNR present in the exposure media was internalized by zebrafish embryos prior to (48 hpf) and after hatching (96 hpf). In addition, no marked DNA damage was detected in embryos after exposure to CTAB-AuNR. Overall, CTAB-AuNR suspensions produced lethal and sublethal effects on zebrafish embryos with possible repercussions in fitness of adult stages. However, these results foresee a low risk for fish since the observed effects occurred at concentrations above the levels expected to find in the aquatic environment.
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Affiliation(s)
- Bárbara Mesquita
- a EPIUnit- Instituto de Saúde Pública, Universidade do Porto , Porto , Portugal
- b Departamento de Saúde Ambiental , Instituto Nacional de Saúde Doutor Ricardo Jorge , Porto , Portugal
| | - Isabel Lopes
- c Departamento de Biologia & CESAM , Campus de Santiago , Aveiro , Portugal
| | - Susana Silva
- a EPIUnit- Instituto de Saúde Pública, Universidade do Porto , Porto , Portugal
- b Departamento de Saúde Ambiental , Instituto Nacional de Saúde Doutor Ricardo Jorge , Porto , Portugal
| | - Maria João Bessa
- a EPIUnit- Instituto de Saúde Pública, Universidade do Porto , Porto , Portugal
- b Departamento de Saúde Ambiental , Instituto Nacional de Saúde Doutor Ricardo Jorge , Porto , Portugal
| | - Maksim Starykevich
- d Departamento de Engenharia de Materiais e Cerâmica , CICECO , Aveiro , Portugal
| | - Jorge Carneiro
- d Departamento de Engenharia de Materiais e Cerâmica , CICECO , Aveiro , Portugal
| | - Tiago L P Galvão
- d Departamento de Engenharia de Materiais e Cerâmica , CICECO , Aveiro , Portugal
| | - Mário G S Ferreira
- d Departamento de Engenharia de Materiais e Cerâmica , CICECO , Aveiro , Portugal
| | - João Tedim
- d Departamento de Engenharia de Materiais e Cerâmica , CICECO , Aveiro , Portugal
| | - João Paulo Teixeira
- a EPIUnit- Instituto de Saúde Pública, Universidade do Porto , Porto , Portugal
- b Departamento de Saúde Ambiental , Instituto Nacional de Saúde Doutor Ricardo Jorge , Porto , Portugal
| | - Sónia Fraga
- a EPIUnit- Instituto de Saúde Pública, Universidade do Porto , Porto , Portugal
- b Departamento de Saúde Ambiental , Instituto Nacional de Saúde Doutor Ricardo Jorge , Porto , Portugal
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16
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Bessada SMF, Barreira JCM, Santos J, Costa C, Pimentel FB, Bessa MJ, Teixeira JP, Oliveira MBPP. Evaluation of the cytotoxicity (HepG2) and chemical composition of polar extracts from the ruderal species Coleostephus myconis (L.) Rchb.f. J Toxicol Environ Health A 2017; 80:641-650. [PMID: 28524760 DOI: 10.1080/15287394.2017.1286915] [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: 06/07/2023]
Abstract
Coleostephus myconis (L.) Rchb.f. (Asteraceae) is a highly disseminated plant species with ruderal and persistent growth. Owing to its advantageous agronomic properties, C. myconis might have industrial applications. However, this species needs to be comprehensively characterized before any potential use. In a previous study, the phenolic composition and antioxidant activity of different C. myconis tissues were characterized. This investigation was extended to examine the cytotoxic potential of selected plant tissues (flowers and green parts) using a HepG2 cell line by utilizing the lysosomal neutral red uptake assay or mitochondrial (3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide assay. In addition, the macronutrients content, lipophilic compounds (fatty acids, tocopherols), and amino acids were also determined. C. myconis flowers were used in the senescence stage, which was previously identified as the stage that presented maximal phenolic content and highest antioxidant activity. In contrast, stems and leaves were employed due to their high biomass proportion. Regarding cytotoxicity, mitochondrial and lysosomal damage was only significant when HepG2 cells were exposed to the highest extract concentrations (stems and leaves, 0.9 mg/ml; senescent flowers, 0.3 mg/ml). Chemically, the senescent flowers were mostly characterized by their high levels of fat, amino acids (especially threonine), oleic acid, β-, and γ-tocopherol, while stems and leaves contained high concentrations of carbohydrates, linolenic acid, and α-tocopherol. In general, these results provide information regarding the threshold concentrations of C. myconis extracts that might be used in different applications without toxicity hazards.
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Affiliation(s)
- Sílvia M F Bessada
- a REQUIMTE/LAQV,Department of Chemical Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
| | - João C M Barreira
- a REQUIMTE/LAQV,Department of Chemical Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
- b CIMO-ESA , Instituto Politécnico de Bragança , Bragança , Portugal
| | - J Santos
- a REQUIMTE/LAQV,Department of Chemical Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
| | - Carla Costa
- c Department of Environmental Health , Portuguese National Institute of Health , Porto , Portugal
- d EPIUnit - Institute of Public Health , University of Porto , Porto , Portugal
| | - Filipa B Pimentel
- a REQUIMTE/LAQV,Department of Chemical Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
| | - Maria João Bessa
- c Department of Environmental Health , Portuguese National Institute of Health , Porto , Portugal
- d EPIUnit - Institute of Public Health , University of Porto , Porto , Portugal
| | - João Paulo Teixeira
- c Department of Environmental Health , Portuguese National Institute of Health , Porto , Portugal
- d EPIUnit - Institute of Public Health , University of Porto , Porto , Portugal
| | - M Beatriz P P Oliveira
- a REQUIMTE/LAQV,Department of Chemical Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
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17
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Soto-Zarazúa MG, Bah M, García-Alcocer MG, Berumen LC, Costa CS, Bessa MJ, Rodrigues F, Teixeira JP, Oliveira MBPP. Assessment of Beneficial and Possible Toxic Effects of Two New Alfalfa-Derived Shelf Products. J Med Food 2016; 19:970-977. [PMID: 30913400 DOI: 10.1089/jmf.2016.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aerial parts of Medicago sativa L. have been used as food and its consumption has been associated with health benefits, one among the most important being menopausal symptoms control. This work was aimed to explore possible pharmacological effects of two new alfalfa-derived products that have recently emerged as daily beverage preparations. In exploring their potential estrogenic effects, they produced no relevant alteration in the uterus. However, lowering glucose levels until normal values without causing further hypoglycemic effect were observed, when rats were treated with 1.5 g/kg/day samples. In vivo acute toxicity was not found when the alfalfa products were tested up to 3 g/kg rat weight. Furthermore, in vitro studies were conducted to assess their possible toxic effects. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and lactate dehydrogenase tests were carried out on the Caco-2 cell model to determine cell viability and membrane integrity. A concentration-dependent effect was observed, with a significant decrease in cell viability after exposure to concentrations of alfalfa product up to 100 mg/mL (after 3 h of incubation) and 50 mg/mL (after 24 h of treatment). Although in vitro level, the decrease in cell viability at these still low doses may underlie some toxicity, making necessary additional studies before any recommendation of a sustained consumption of these products by humans.
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Affiliation(s)
- María G Soto-Zarazúa
- 1 Chemical and Biological Sciences Postgraduate Department, Faculty of Chemistry, Autonomous University of Querétaro, Querétaro, Mexico .,2 REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Moustapha Bah
- 1 Chemical and Biological Sciences Postgraduate Department, Faculty of Chemistry, Autonomous University of Querétaro, Querétaro, Mexico
| | - María G García-Alcocer
- 1 Chemical and Biological Sciences Postgraduate Department, Faculty of Chemistry, Autonomous University of Querétaro, Querétaro, Mexico
| | - Laura C Berumen
- 1 Chemical and Biological Sciences Postgraduate Department, Faculty of Chemistry, Autonomous University of Querétaro, Querétaro, Mexico
| | - Carla Sofia Costa
- 3 Department of Environmental Health, Portuguese National Institute of Health , Porto, Portugal .,4 EPIUnit-Institute of Public Health, University of Porto , Porto, Portugal
| | - Maria João Bessa
- 3 Department of Environmental Health, Portuguese National Institute of Health , Porto, Portugal
| | - Francisca Rodrigues
- 2 REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - João Paulo Teixeira
- 3 Department of Environmental Health, Portuguese National Institute of Health , Porto, Portugal .,4 EPIUnit-Institute of Public Health, University of Porto , Porto, Portugal
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18
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Costa C, Brandão F, Bessa MJ, Costa S, Valdiglesias V, Kiliç G, Fernández-Bertólez N, Quaresma P, Pereira E, Pásaro E, Laffon B, Teixeira JP. In vitro cytotoxicity of superparamagnetic iron oxide nanoparticles on neuronal and glial cells. Evaluation of nanoparticle interference with viability tests. J Appl Toxicol 2015. [PMID: 26212026 DOI: 10.1002/jat.3213] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Superparamagnetic iron oxide nanoparticles (ION) have attracted great interest for use in several biomedical fields. In general, they are considered biocompatible, but little is known of their effects on the human nervous system. The main objective of this work was to evaluate the cytotoxicity of two ION (magnetite), coated with silica and oleic acid, previously determining the possible interference of the ION with the methodological procedures to assure the reliability of the results obtained. Human neuroblastoma SHSY5Y and glioblastoma A172 cells were exposed to different concentrations of ION (5-300 µg ml(-1)), prepared in complete and serum-free cell culture medium for three exposure times (3, 6 and 24 h). Cytotoxicity was evaluated by means of the MTT, neutral red uptake and alamar blue assays. Characterization of the main physical-chemical properties of the ION tested was also performed. Results demonstrated that both ION could significantly alter absorbance readings. To reduce these interferences, protocols were modified by introducing additional washing steps and cell-free systems. Significant decreases in cell viability were observed for both cell lines in specific conditions by all assays. In general, oleic acid-coated ION were less cytotoxic than silica-coated ION; besides, a serum-protective effect was observed for both ION studied and cell lines. These results contribute to increase the knowledge of the potential harmful effects of ION on the human nervous system. Understanding these effects is essential to establish satisfactory regulatory policies on the safe use of magnetite nanoparticles in biomedical applications.
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Affiliation(s)
- Carla Costa
- Department of Environmental Health, Portuguese National Institute of Health, Porto, Portugal.,EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
| | - Fátima Brandão
- Department of Environmental Health, Portuguese National Institute of Health, Porto, Portugal
| | - Maria João Bessa
- Department of Environmental Health, Portuguese National Institute of Health, Porto, Portugal
| | - Solange Costa
- Department of Environmental Health, Portuguese National Institute of Health, Porto, Portugal.,EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
| | - Vanessa Valdiglesias
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruna, Campus Elviña s/n, A Coruña, Spain
| | - Gözde Kiliç
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruna, Campus Elviña s/n, A Coruña, Spain.,Department of Cell and Molecular Biology, University of A Coruña, Campus de A Zapateira s/n, A Coruña, Spain
| | - Natalia Fernández-Bertólez
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruna, Campus Elviña s/n, A Coruña, Spain.,Department of Cell and Molecular Biology, University of A Coruña, Campus de A Zapateira s/n, A Coruña, Spain
| | - Pedro Quaresma
- REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Eulália Pereira
- REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Eduardo Pásaro
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruna, Campus Elviña s/n, A Coruña, Spain
| | - Blanca Laffon
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruna, Campus Elviña s/n, A Coruña, Spain
| | - João Paulo Teixeira
- Department of Environmental Health, Portuguese National Institute of Health, Porto, Portugal.,EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
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Bessa MJ, Costa Rego M, Rocha E, Pessanha J, leal C, Guimarães JM, Carlos Oliveira J, Sousa M. Semen parameters and their influence on pregnancy after assisted reproduction: Report of the Hospital Centre of Porto. Rev Int Androl 2015. [DOI: 10.1016/j.androl.2014.05.001] [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: 11/27/2022]
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20
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Costa C, Kiliç G, Brandão F, Bessa MJ, Costa S, Pásaro E, Valdiglesias V, Laffon B, Teixeira JP. Cytotoxicity of iron oxide nanoparticles with different coatings on human neuronal cells. Toxicol Lett 2014. [DOI: 10.1016/j.toxlet.2014.06.673] [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: 11/30/2022]
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