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Mahjoubian M, Sadat Naeemi A, Sheykhan M. Comparative Toxicity of TiO 2 and Sn-Doped TiO 2 Nanoparticles in Zebrafish After Acute and Chronic Exposure. Biol Trace Elem Res 2024:10.1007/s12011-024-04127-2. [PMID: 38472510 DOI: 10.1007/s12011-024-04127-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
This study was conducted to assess the toxicological potential of synthesized pure and Sn-doped TiO2 NPs (Sn-TiO2 NPs) in zebrafish after acute and chronic exposure. The pure TiO2 NPs, 4%, and 8% Sn-TiO2 NPs were synthesized and characterized using X-ray diffraction, Scanning Electron Microscope, diffuse reflectance spectra, dynamic light scattering, and zeta potential analyses. The pure TiO2 NPs, 4%, and 8% Sn-TiO2 NPs were spherical with average sizes of about 40, 28, and 21 nm, respectively, indicating significant size reduction of TiO2 NPs following Sn doping. According to our results, the LC50-96h increased in the order of 8% Sn-TiO2 NPs (45 mg L-1) < 4% Sn-TiO2 NPs (80.14 mg L-1) < pure TiO2 NPs (105.47 mg L-1), respectively. Exposure of fish to Sn-TiO2 NPs after 30 days resulted in more severe histopathological alterations in gills, liver, intestine, and kidneys than pure TiO2 NPs. Furthermore, Sn-doping significantly elevated malondialdehyde levels and micronuclei frequency, indicating increased oxidative stress and genotoxicity. Expression analysis revealed altered expression of various genes, including upregulation of pro-apoptotic Bax gene and downregulation of anti-apoptotic Bcl-2 gene, suggesting potential induction of apoptosis in response to Sn-doped NPs. Additionally, antioxidant genes (Gpx, Sod, Cat, and Ucp-2) and stress response gene (Hsp70) showed altered expression, suggesting complex cellular responses to mitigate the toxic effects. Overall, this study highlights the concerning impact of Sn-doping on the toxicity of TiO2 NPs in zebrafish and emphasizes the need for further research to elucidate the exact mechanisms underlying this enhanced toxicity.
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Affiliation(s)
- Maryam Mahjoubian
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Akram Sadat Naeemi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran.
| | - Mehdi Sheykhan
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
- Department of Chemistry, Faculty of Sciences, University of Guilan, Rasht, Iran
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2
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Krishnasamy Sekar R, Arunachalam R, Anbazhagan M, Palaniyappan S, Veeran S, Sridhar A, Ramasamy T. Accumulation, Chronicity, and Induction of Oxidative Stress Regulating Genes Through Allium cepa L. Functionalized Silver Nanoparticles in Freshwater Common Carp (Cyprinus carpio). Biol Trace Elem Res 2023; 201:904-925. [PMID: 35199287 DOI: 10.1007/s12011-022-03164-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/14/2022] [Indexed: 01/21/2023]
Abstract
Green evolutionary products such as biologically fabricated nanoparticles (NPs) pose a hazard to aquatic creatures. Herein, biogenic silver nanoparticles (AgNPs) were synthesized by the reaction between ionic silver (AgNO3) and aqueous onion peel extract (Allium cepa L). The synthesized biogenic AgNPs were characterized with UV-Visible spectrophotometer, XRD, FT-IR, and TEM with EDS analysis; then, their toxicity was assessed on common carp fish (Cyprinus carpio) using biomarkers of haematological alterations, oxidative stress, histological changes, differential gene expression patterns, and bioaccumulation. The 96 h lethal toxicity was analysed with various concentrations (2, 4, 6, 8, and 10 mg/l) of biogenic AgNPs. Based on 96 h LC50, sublethal concentrations (1/15th, 1/10th, and 1/5th) were given to C. carpio for 28 days. At the end of experiment, the bioaccumulations of Ag content were accumulated mainly in the gills, followed by the liver and muscle. At an interval of 7 days, the haematological alterations showed significance (p < 0.05) and elevation of antioxidant defence mechanism reveals the toxicity of biogenic synthesized AgNPs. Adverse effects on oxidative stress were probably related to the histopathological damage of its vital organs like gill, liver, and muscle. Finally, the fish treated with biogenic synthesized AgNPs were significantly (p < 0.05) downregulates the oxidative stress genes such as Cu-Zn SOD, CAT, GPx1a, GST-α, CYP1A, and Nrf-2 expression patterns. The present study provides evidence of biogenic synthesized AgNPs influence on the aquatic life through induction of oxidative stress.
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Affiliation(s)
- Rajkumar Krishnasamy Sekar
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Ramkumar Arunachalam
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India
| | - Murugadas Anbazhagan
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India
- Department of Pediatrics, School of Medicine, Emory University, GA, 30322, Atlanta, USA
| | - Sivagaami Palaniyappan
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Srinivasan Veeran
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Arun Sridhar
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
- Immunology-Vaccinology, Department of Infectious and Parasitic Diseases, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Thirumurugan Ramasamy
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India.
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India.
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3
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Mahjoubian M, Naeemi AS, Sheykhan M. Toxicological effects of Ag 2O and Ag 2CO 3 doped TiO 2 nanoparticles and pure TiO 2 particles on zebrafish (Danio rerio). CHEMOSPHERE 2021; 263:128182. [PMID: 33297149 DOI: 10.1016/j.chemosphere.2020.128182] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 06/12/2023]
Abstract
In this study, the toxic effects of silver oxide and silver carbonate doped TiO2 nanoparticles (Ag2O-TiO2 NPs and Ag2CO3-TiO2NPs), TiO2 nanoparticles (TiO2 NPs), and bulk TiO2 on gene expression, lipid peroxidation, genotoxicity, and histological alterations in zebrafish (Danio rerio) was assessed. The physicochemical properties of the synthesized nanoparticles were evaluated by X-ray diffraction (XRD), Scanning Electron Microscope (SEM), diffuse reflectance spectroscopy (DRS), dynamic light scattering (DLS), and Zeta potential analyses. TiO2NPs after doping with Ag showed shift to higher wavelengths and decrease of band gap energy. Also, remarkable reduction in the size of Ag-doped TiO2NPs in comparison with the TiO2 NPs was observed. According to our results, acute toxicity increased in the order of bulk TiO2 < TiO2 NPs < Ag2O-TiO2NPs < Ag2CO3-TiO2NPs, respectively. Results of sub-lethal experiments after 30 days of exposure, showed higher expression of Gpx, Hsp70, Ucp-2, and Bax genes, and lower expression of Bcl-2 gene in Ag-doped TiO2NPs than pure TiO2 particles (TiO2 NPs and bulk TiO2) treatments (p < 0.05). However, the mRNA levels of SOD and CAT genes were significantly higher in pure TiO2 particles than doped TiO2NPs (p < 0.05). Moreover, levels of malondialdehyde, abnormalities of peripheral blood cells and severity of histological lesions in liver, gill, intestine and kidney tissues were more evident in Ag-dopedTiO2 NPs than pure TiO2 particles. It can be concluded that Ag doping of TiO2 NPs significantly increased their toxicity and resulted in more histological lesions, apoptosis and oxidative stress than pure TiO2 particles in adult zebrafish.
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Affiliation(s)
- Maryam Mahjoubian
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Akram Sadat Naeemi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran.
| | - Mehdi Sheykhan
- Department of Chemistry, Faculty of Sciences, University of Guilan, Rasht, Iran
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Sendra M, Pereiro P, Yeste MP, Mercado L, Figueras A, Novoa B. Size matters: Zebrafish (Danio rerio) as a model to study toxicity of nanoplastics from cells to the whole organism. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115769. [PMID: 33070068 DOI: 10.1016/j.envpol.2020.115769] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 09/10/2020] [Accepted: 09/29/2020] [Indexed: 05/22/2023]
Abstract
The contamination of the aquatic environment by plastic nanoparticles is becoming a major concern due to their potential adverse effects in aquatic biota. Therefore, in-depth knowledge of their uptake, trafficking and effects at cellular and systemic levels is essential to understand their potential impacts for aquatic species. In this work, zebrafish (Danio rerio) was used as a model and our aims were: i) to determine the distribution, uptake, trafficking, degradation and genotoxicity of polystyrene (PS) NPs of different sizes in a zebrafish cell line; ii) to study PS NPs accumulation, migration of immune cells and genotoxicity in larvae exposed to PS NPs; and iii) to assess how PS NPs condition the survival of zebrafish larvae exposed to a pathogen and/or how they impact the resistance of an immunodeficient zebrafish. Our results revealed that the cellular distribution differed depending on the particle size: the 50 nm PS NPs were more homogeneously distributed in the cytoplasm and the 1 μM PS NPs more agglomerated. The main endocytic mechanisms for the uptake of NPs were dynamin-dependent internalization for the 50 nm NPs and phagocytosis for the 1 μm nanoparticles. In both cases, degradation in lysosomes was the main fate of the PS NPs, which generated alkalinisation and modified cathepsin genes expression. These effects at cellular level agree with the results in vivo, since lysosomal alkalization increases oxidative stress and vice versa. Nanoparticles mainly accumulated in the gut, where they triggered reactive oxygen species, decreased expression of the antioxidant gene catalase and induced migration of immune cells. Finally, although PS NPs did not induce mortality in wild-type larvae, immunodeficient and infected larvae had decreased survival upon exposure to PS NPs. This fact could be explained by the mechanical disruption and/or the oxidative damage caused by these NPs that increase their susceptibility to pathogens.
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Affiliation(s)
- M Sendra
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208, Vigo, Spain
| | - P Pereiro
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208, Vigo, Spain
| | - M P Yeste
- Department of Material Science, Metallurgical Engineering and Inorganic Chemistry, University of Cádiz, Spain
| | - L Mercado
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - A Figueras
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208, Vigo, Spain
| | - B Novoa
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208, Vigo, Spain.
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Pirsaheb M, Azadi NA, Miglietta ML, Sayadi MH, Blahova J, Fathi M, Mansouri B. Toxicological effects of transition metal-doped titanium dioxide nanoparticles on goldfish (Carassius auratus) and common carp (Cyprinus carpio). CHEMOSPHERE 2019; 215:904-915. [PMID: 30408886 DOI: 10.1016/j.chemosphere.2018.10.111] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 06/08/2023]
Abstract
The aim of present study was to assess the toxicological effects of transition metal-doped titanium dioxide nanoparticles (TiO2 NPs) on histopathological changes, behavioral patterns, and antioxidant responses of goldfish (Carassius auratus) and common carp (Cyprinus carpio). The synthesized nanoparticles were confirmed by Transmission Electron Microscopy, Field Emission Scanning Electron Microscopy, X-ray diffraction, UV-visible, and Vibration Sample Magnetometer. Fish in four experimental groups exposed to sub-lethal concentrations of pure TiO2 NPs (10 mg L-1), chromium (Cr), iron (Fe), and nickel (Ni) doped TiO2 NPs for seven days. Statistical analysis of oxidative stress responses in gills showed significant differences in superoxide dismutase, total antioxidant capacity, and malondialdehyde parameters between two species and in all parameters than glutathione peroxidase between experimental groups and control group. In intestine, no significant difference was observed among groups, but oxidative responses were markedly different in all parameters among fish species. The histopathological analysis showed hyperplasia, fusion, and aneurism in the gills as well as degeneration, integration of villi, necrosis and erosion of the intestine. Our findings indicated that compare to pure TiO2 NPs, exposure to transition metals-doped TiO2 NPs induced oxidative stress and histopathological changes in both fish species.
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Affiliation(s)
- Maghdad Pirsaheb
- -Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Nammam Ali Azadi
- Biostatistics Department, Faculty of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | | | - Mohammad Hossein Sayadi
- Department of Environmental Sciences, School of Natural Resources and Environment, University of Birjand, Birjand, Iran.
| | - Jana Blahova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho tr. 1946/1, 612 42, Brno, Czech Republic.
| | - Mokhtar Fathi
- Animal Sciences Department, Payam Noor University, Sanandaj, Iran.
| | - Borhan Mansouri
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran.
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LeMoine CMR, Kelleher BM, Lagarde R, Northam C, Elebute OO, Cassone BJ. Transcriptional effects of polyethylene microplastics ingestion in developing zebrafish (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:591-600. [PMID: 30218869 DOI: 10.1016/j.envpol.2018.08.084] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 08/24/2018] [Accepted: 08/24/2018] [Indexed: 06/08/2023]
Abstract
Over the last few decades, plastic waste has become an increasing environmental concern as it accumulates in every environment on our planet. Though traditionally seen as a macroscopic problem (i.e., large plastic debris), plastic pollution is also evident at smaller scales. Indeed, the intentional industrial production of small plastic particles and the physical degradation of larger plastic debris have overtime resulted in an increased environmental prevalence of smaller plastic particles, including microplastics. While the effects of these small polymers on marine biota have been an important research focus, recent global surveys indicate that our freshwater lakes and rivers are also plagued by microplastics. However, despite these discoveries we currently have a limited understanding of the impact these particles may have on freshwater animals, particularly on vertebrate species. Thus, the aim of the present study was to assess the impact of high concentrations of microplastics (5 and 20 mg.L-1) on the early life stages in zebrafish, a model freshwater vertebrate model. To do this, we exposed embryonic and larval zebrafish to fluorescently labelled polyethylene microspheres for up to 14 days and assessed their microplastic content, growth, hatching and oxygen consumption rates. We then explored the molecular underpinnings of the microplastic response by RNA sequencing. Over the course of the exposure, we observed a consistent accumulation of microplastics in the gastrointestinal tract of the fish in a concentration dependent manner, but could not detect any detrimental effects of these particles on larval development, growth or metabolism. However, whole animal transcriptomics revealed that microplastics induced a transient and extensive change in larval gene expression within 48 h exposure, which largely disappeared by 14 days. However, as these transcriptional changes occurred during a critical period of larval development, we suggest that an evaluation of the potential long-term impact of these particles is warranted.
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Affiliation(s)
| | - Bailey M Kelleher
- Department of Biology, Brandon University, Brandon, Manitoba, R7A 6A9, Canada
| | - Raphaël Lagarde
- Department of Biology, Brandon University, Brandon, Manitoba, R7A 6A9, Canada; Hydrô Réunion, Z.I. Les Sables, 97427, Etang Salé, La Réunion, France; ENTROPIE, IRD, Université de La Réunion, CNRS, Laboratoire d'Excellence CORAIL, CS 41095, 2 rue Joseph Wetzell, Parc technologique universitaire, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Caleb Northam
- Department of Biology, Brandon University, Brandon, Manitoba, R7A 6A9, Canada
| | - Oluwadara O Elebute
- Department of Biology, Brandon University, Brandon, Manitoba, R7A 6A9, Canada
| | - Bryan J Cassone
- Department of Biology, Brandon University, Brandon, Manitoba, R7A 6A9, Canada
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Revel M, Châtel A, Mouneyrac C. Omics tools: New challenges in aquatic nanotoxicology? AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 193:72-85. [PMID: 29049925 DOI: 10.1016/j.aquatox.2017.10.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 10/05/2017] [Accepted: 10/10/2017] [Indexed: 05/04/2023]
Abstract
In recent years, the implication of genomics into ecotoxicological studies has been studied closely to allow a better understanding of organism's responses to environmental contaminants including engineering nanomaterials (ENMs). ENMs are increasingly produced for various applications including cosmetics, electronics, sports equipment, biomedicine and agriculture. Because of their small size, ENMs possess chemical or physical characteristics improved compared to the corresponding macro-sized material. As their application expend, the release of manufactured ENMs into the environment is likely to increase and concern over impacts for the aquatic ecosystem is growing. Several studies reported deleterious effect of ENMs to aquatic organisms, but there is little information about the molecular mechanisms of toxicity. The development of ecotoxicogenomic approaches will improve the characterization of cellular and molecular modes of action of ENMs to aquatic organisms and allow a better prediction of contaminants toxicity. This paper presents an overview of transciptomic/proteomic studies in freshwater and marine organisms exposed to ENMs. Overall, induction of gene expression in relations to defense mechanisms, immune responses, growth and reproduction were measured after ENMs exposures of organisms, but with different patterns depending on exposure duration and concentrations used. In addition, some studies reported a positive correlation between gene expression and cellular modifications, but not at the individual level.
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Affiliation(s)
- Messika Revel
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Angers F-49000, France.
| | - Amélie Châtel
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Angers F-49000, France.
| | - Catherine Mouneyrac
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Angers F-49000, France.
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A Novel Experimental and Modelling Strategy for Nanoparticle Toxicity Testing Enabling the Use of Small Quantities. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14111348. [PMID: 29113114 PMCID: PMC5707987 DOI: 10.3390/ijerph14111348] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 10/19/2017] [Accepted: 11/02/2017] [Indexed: 11/17/2022]
Abstract
Metallic nanoparticles (NPs) differ from other metal forms with respect to their large surface to volume ratio and subsequent inherent reactivity. Each new modification to a nanoparticle alters the surface to volume ratio, fate and subsequently the toxicity of the particle. Newly-engineered NPs are commonly available only in low quantities whereas, in general, rather large amounts are needed for fate characterizations and effect studies. This challenge is especially relevant for those NPs that have low inherent toxicity combined with low bioavailability. Therefore, within our study, we developed new testing strategies that enable working with low quantities of NPs. The experimental testing method was tailor-made for NPs, whereas we also developed translational models based on different dose-metrics allowing to determine dose-response predictions for NPs. Both the experimental method and the predictive models were verified on the basis of experimental effect data collected using zebrafish embryos exposed to metallic NPs in a range of different chemical compositions and shapes. It was found that the variance in the effect data in the dose-response predictions was best explained by the minimal diameter of the NPs, whereas the data confirmed that the predictive model is widely applicable to soluble metallic NPs. The experimental and model approach developed in our study support the development of (eco)toxicity assays tailored to nano-specific features.
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Zhao J, Huang G, Xu T, Yin D, Bai J, Gu W. Early developmental exposure to pentachlorophenol causes alterations on mRNA expressions of caspase protease family in zebrafish embryos. CHEMOSPHERE 2017; 180:141-148. [PMID: 28402832 DOI: 10.1016/j.chemosphere.2017.03.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/23/2017] [Accepted: 03/24/2017] [Indexed: 06/07/2023]
Abstract
Caspase proteases play an essential role in cell apoptosis and inflammation, thus matter greatly in animal development and other biological processes. As a ubiquitous environmental pollutant, pentachlorophenol (PCP) is considered to have adverse effects on animal apoptosis during embryonic development, yet the evidence that PCP interfere with caspase genes was seldom reported. To uncover the effects of PCP on caspases expression in early embryos of zebrafish, two concentrations of PCP (5 μg/L and 200 μg/L) were chosen and 14 types of caspase genes at two different developmental stages, 8 h post-fertilization (hpf) and 24 hpf were analyzed. Lower survival and hatching rates, distinct developmental delay and morphological deformities of head and tail were observed. PCP, especially in the high concentration, significantly altered the expressions of most caspase genes. At 8 hpf, PCP had the most significant inductive effects on gene casp8l2 with fold changes (FCs) of 6.87 at 5 μg/L and 4.48 at 200 μg/L, and casp6l1 (with FCs of 3.15/3.69), and inhibitory effects on caspa (with FCs of 0.93/0.53) and caspb (with FCs of 0.99/0.57). At 24 hpf, PCP had the most significant effects on casp6l2, casp9, and caspc. PCP exposure possibly disrupted intrinsic apoptosis pathway considering its effects on casp9 expression. In addition, most caspase genes exhibited higher levels at 24 hpf than 8 hpf except caspc. Our results suggested that PCP had different effects on varied caspase genes, which probably resulting in a profound impact on caspase proteins and apoptosis processes and, ultimately, developmental abnormality.
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Affiliation(s)
- Jing Zhao
- Shanghai Collaborative Innovation Centre for WEEE Recycling, WEEE Research Centre of Shanghai Polytechnic University, Shanghai 201209, China
| | - Gaofeng Huang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Ting Xu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Jianfeng Bai
- Shanghai Collaborative Innovation Centre for WEEE Recycling, WEEE Research Centre of Shanghai Polytechnic University, Shanghai 201209, China
| | - Weihua Gu
- Shanghai Collaborative Innovation Centre for WEEE Recycling, WEEE Research Centre of Shanghai Polytechnic University, Shanghai 201209, China
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10
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Leung YH, Guo MY, Ma APY, Ng AMC, Djurišić AB, Degger N, Leung FCC. Transmission electron microscopy artifacts in characterization of the nanomaterial-cell interactions. Appl Microbiol Biotechnol 2017; 101:5469-5479. [PMID: 28497205 DOI: 10.1007/s00253-017-8305-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 04/18/2017] [Accepted: 04/21/2017] [Indexed: 11/26/2022]
Abstract
We investigated transmission electron microscopy artifacts obtained using standard sample preparation protocols applied to the investigation of Escherichia coli cells exposed to common nanomaterials, such as TiO2, Ag, ZnO, and MgO. While the common protocols for some nanomaterials result only in known issues of nanomaterial-independent generation of anomalous deposits due to fixation and staining, for others, there are reactions between the nanomaterial and chemicals used for post-fixation or staining. Only in the case of TiO2 do we observe only the known issues of nanomaterial-independent generation of anomalous deposits due to exceptional chemical stability of this material. For the other three nanomaterials, different artifacts are observed. For each of those, we identify causes of the observed problems and suggest alternative sample preparation protocols to avoid artifacts arising from the sample preparation, which is essential for correct interpretation of the obtained images and drawing correct conclusions on cell-nanomaterial interactions. Finally, we propose modified sample preparation and characterization protocols for comprehensive and conclusive investigations of nanomaterial-cell interactions using electron microscopy and for obtaining clear and unambiguous revelation whether the nanomaterials studied penetrate the cells or accumulate at the cell membranes. In only the case of MgO and ZnO, the unambiguous presence of Zn and Mg could be observed inside the cells.
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Affiliation(s)
- Yu Hang Leung
- Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Mu Yao Guo
- Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong
- Department of Physics, Southern University of Science and Technology of China, Shenzhen, China
| | - Angel P Y Ma
- School of Biological Sciences, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Alan M C Ng
- Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong
- Department of Physics, Southern University of Science and Technology of China, Shenzhen, China
| | | | - Natalie Degger
- School of Biological Sciences, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Frederick C C Leung
- School of Biological Sciences, University of Hong Kong, Pokfulam Road, Hong Kong
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11
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Jahan S, Yusoff IB, Alias YB, Bakar AFBA. Reviews of the toxicity behavior of five potential engineered nanomaterials (ENMs) into the aquatic ecosystem. Toxicol Rep 2017; 4:211-220. [PMID: 28959641 PMCID: PMC5615119 DOI: 10.1016/j.toxrep.2017.04.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/07/2017] [Accepted: 04/02/2017] [Indexed: 01/03/2023] Open
Abstract
Presently, engineered nanomaterials (ENMs) are used in a wide variety of commercial applications, resulting in an uncontrolled introduction into the aquatic environment. The purpose of this review is to summarize the pathways and factors that controlling the transport and toxicity of five extensively used ENMs. These toxicological pathways are of great importance and need to be addressed for sustainable implications of ENMs without environmental liabilities. Here we discuss five potentially utilized ENMs with their possible toxicological risk factors to aquatic plants, vertebrates model and microbes. Moreover, the key effect of ENMs surface transformations by significant reaction with environmental objects such as dissolved natural organic matter (DOM) and the effect of ENMs surface coating and surface charge will also be debated. The transformations of ENMs are subsequently facing a major ecological transition that is expected to create a substantial toxicological effect towards the ecosystem. These transformations largely involve chemical and physical processes, which depend on the properties of both ENMs and the receiving medium. In this review article, the critical issues that controlling the transport and toxicity of ENMs are reviewed by exploiting the latest reports and future directions and targets are keenly discussed to minimize the pessimistic effects of ENMs.
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Affiliation(s)
- Shanaz Jahan
- Department of Geology, Environmental and Earth Sciences, Faculty of Science, University Malaya, Kuala Lumpur, 50603, Malaysia
| | - Ismail Bin Yusoff
- Department of Geology, Environmental and Earth Sciences, Faculty of Science, University Malaya, Kuala Lumpur, 50603, Malaysia
| | - Yatimah Binti Alias
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, 50603, Malaysia
- University Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Ahmad Farid Bin Abu Bakar
- Department of Geology, Environmental and Earth Sciences, Faculty of Science, University Malaya, Kuala Lumpur, 50603, Malaysia
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Weil M, Meißner T, Busch W, Springer A, Kühnel D, Schulz R, Duis K. The oxidized state of the nanocomposite Carbo-Iron® causes no adverse effects on growth, survival and differential gene expression in zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 530-531:198-208. [PMID: 26042533 DOI: 10.1016/j.scitotenv.2015.05.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/20/2015] [Accepted: 05/20/2015] [Indexed: 05/24/2023]
Abstract
For degradation of halogenated chemicals in groundwater Carbo-Iron®, a composite of activated carbon and nano-sized Fe(0), was developed (Mackenzie et al., 2012). Potential effects of this nanocomposite on fish were assessed. Beyond the contaminated zone Fe(0) can be expected to have oxidized and Carbo-Iron was used in its oxidized form in ecotoxicological tests. Potential effects of Carbo Iron in zebrafish (Danio rerio) were investigated using a 48 h embryo toxicity test under static conditions, a 96 h acute test with adult fish under semi-static conditions and a 34 d fish early life stage test (FELST) in a flow-through system. Particle diameters in test suspensions were determined via dynamic light scattering (DLS) and ranged from 266 to 497 nm. Particle concentrations were measured weekly in samples from the FELST using a method based on the count rate in DLS. Additionally, uptake of particles into test organisms was investigated using microscopic methods. Furthermore, effects of Carbo-Iron on gene expression were investigated by microarray analysis in zebrafish embryos. In all tests performed, no significant lethal effects were observed. Furthermore, Carbo-Iron had no significant influence on weight and length of fish as determined in the FELST. In the embryo test and the early life stage test, growth of fungi on the chorion was observed at Carbo-Iron concentrations between 6.3 and 25mg/L. Fungal growth did not affect survival, hatching success and growth. In the embryo test, no passage of Carbo-Iron particles into the perivitelline space or the embryo was observed. In juvenile and adult fish, Carbo-Iron was detected in the gut at the end of exposure. In juvenile fish exposed to Carbo-Iron for 29 d and subsequently kept for 5d in control water, Carbo-Iron was no longer detectable in the gut. Global gene expression in zebrafish embryos was not significantly influenced by Carbo-Iron.
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Affiliation(s)
- Mirco Weil
- ECT Oekotoxikologie GmbH, Böttgerstrasse 2-14, 65439 Flörsheim, Germany.
| | - Tobias Meißner
- Fraunhofer Institute for Ceramic Technologies and Systems, Winterbergstrasse 28, 01277 Dresden, Germany.
| | - Wibke Busch
- Helmholtz Centre for Environmental Research - UFZ, Dept. of Bioanalytical Ecotoxicology, Permoser Strasse 15, 04318 Leipzig, Germany.
| | - Armin Springer
- Centre for Translational Bone, Joint and Soft Tissue Research, Technical University Dresden, Fetscherstrasse 74, 01307 Dresden, Germany.
| | - Dana Kühnel
- Helmholtz Centre for Environmental Research - UFZ, Dept. of Bioanalytical Ecotoxicology, Permoser Strasse 15, 04318 Leipzig, Germany.
| | - Ralf Schulz
- Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany.
| | - Karen Duis
- ECT Oekotoxikologie GmbH, Böttgerstrasse 2-14, 65439 Flörsheim, Germany.
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Dose-response analysis of the effects of persistent organic pollutants (POPs) on gene expression in human hepatocytes. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-015-0032-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Park HG, Yeo MK. Metabolic gene expression profiling of Zebrafish embryos exposed to silver nanocolloids and nanotubes. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-014-0045-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Park HG, Kim JI, Kang M, Yeo MK. The effect of metal-doped TiO2 nanoparticles on zebrafish embryogenesis. Mol Cell Toxicol 2014. [DOI: 10.1007/s13273-014-0033-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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He X, Aker WG, Hwang HM. An in vivo study on the photo-enhanced toxicities of S-doped TiO2 nanoparticles to zebrafish embryos (Danio rerio) in terms of malformation, mortality, rheotaxis dysfunction, and DNA damage. Nanotoxicology 2014; 8 Suppl 1:185-95. [PMID: 24766231 DOI: 10.3109/17435390.2013.874050] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The role of light on the acute toxicities of S-doped and Sigma TiO2 nanoparticles in zebrafish was studied. Metrics included mortality for both, and rheotaxis dysfunction and DNA damage for S-doped only. It was found that the acute toxicity of S-TiO2 nanoparticles was enhanced by simulated sunlight (SSL) irradiation (96-h LC50 of 116.56 ppm) and exceeded that of Sigma TiO2, which was essentially non-toxic. Behavioral disorder, in terms of rheotaxis, was significantly increased by treatment with S-TiO2 nanoparticles under SSL irradiation. In order to further understand its toxicity mechanism, we investigated hair cells in neuromasts of the posterior lateral line (PLL) using DASPEI staining. Significant hair cell damage was observed in the treated larvae. The Comet assay was employed to investigate the DNA damage, which might be responsible for the loss of hair cells. Production of the superoxide anion ([Formula: see text]), a major ROS generated by TiO2 nanoparticles, was assayed and used to postulate causative factors to account for these damages. Oxidative effects were most severe in the liver, heart, intestine, pancreatic duct, and pancreatic islet - results consistent with our earlier findings in the investigation of embryonic malformation. TEM micrographs, used to further investigate the fate of S-TiO2 nanoparticles at the cellular level, suggested receptor-mediated autophagy and vacuolization. Our findings validate the benefit of using the transparent zebrafish embryo as an in vivo model for evaluating photo-induced nanotoxicity. These results highlight the importance of conducting a systematic risk assessment in connection with the use of doped TiO2 nanoparticles in aquatic ecosystems.
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Park HG, Yeo MK. Comparison of gene expression changes induced by exposure to Ag, Cu-TiO2, and TiO2 nanoparticles in zebrafish embryos. Mol Cell Toxicol 2013. [DOI: 10.1007/s13273-013-0017-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Choi HS, Song MK, Lee E, Ryu JC. The toxicogenomic study on Persistent Organic Pollutants (POPs) in human hepatoma cell line. BIOCHIP JOURNAL 2013. [DOI: 10.1007/s13206-013-7104-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Toxicity of citrate-capped silver nanoparticles in common carp (Cyprinus carpio). J Biomed Biotechnol 2012; 2012:262670. [PMID: 23093839 PMCID: PMC3470888 DOI: 10.1155/2012/262670] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/24/2012] [Accepted: 07/24/2012] [Indexed: 11/18/2022] Open
Abstract
Juvenile common carp (Cyprinus carpio) were used as a model to investigate acute toxicity and oxidative stress caused by silver nanoparticles (Ag-NPs). The fish were exposed to different concentrations of Ag-NPs for 48 h and 96 h. After exposure, antioxidant enzyme levels were measured, including glutathione-S-transferase (GST), superoxidase dismutase, and catalase (CAT). Other biochemical parameters and histological abnormalities in different tissues (i.e., the liver, gills, and brain) were also examined. The results showed that Ag-NPs agglomerated in freshwater used during the exposure experiments, with particle size remaining <100 nm. Ag-NPs had no lethal effect on fish after 4 days of exposure. Biochemical analysis showed that enzymatic activities in the brain of the fish exposed to 200 μg/L of Ag-NPs were significantly reduced. Varied antioxidant enzyme activity was recorded in the liver and gills. Varied antioxidant enzyme activity was recorded for CAT in the liver and GST in the gills of the fish. However, the recovery rate of fish exposed to 200 μg/L of Ag-NPs was slower than when lower particle concentrations were used. Other biochemical indices showed no significant difference, except for NH3 and blood urea nitrogen concentrations in fish exposed to 50 μg/L of Ag-NPs. This study provides new evidence about the effects of nanoparticles on aquatic organisms.
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