1
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Yao Y, Chen Z, Zhang T, Tang M. Adverse reproductive and developmental consequences of quantum dots. ENVIRONMENTAL RESEARCH 2022; 213:113666. [PMID: 35697086 DOI: 10.1016/j.envres.2022.113666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/16/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Quantum dots (QDs), with a size of 1-10 nm, are luminescent semiconductor nanocrystals characterized by a shell-core structure. Notably, QDs have potential application in bioimaging owing to their higher fluorescence performance than conventional fluorescent dyes. To date, QDs has been widely used in photovoltaic devices, supercapacitors, electrocatalysis, photocatalysis. In recent years, scientists have focused on whether the use of QDs can interfere with the reproductive and developmental processes of organisms, resulting in serious population and community problems. In this study, we first analyze the possible reproductive and development toxicity of QDs. Next, we summarize the possible mechanisms underlying QDs' interference with reproduction and development, including oxidative stress, altered gametogenesis and fetal development gene expression, autophagy and apoptosis, and release of metal ions. Thereafter, we highlight some potential aspects that can be used to eliminate or reduce QDs toxicity. Based on QDs' unique physical and chemical properties, a comprehensive range of toxicity test data is urgently needed to build structure-activity relationship to quickly evaluate the ecological safety of each kind of QDs.
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Affiliation(s)
- Yongshuai Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Zhaofang Chen
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China.
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China.
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2
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Roma J, Matos AR, Vinagre C, Duarte B. Engineered metal nanoparticles in the marine environment: A review of the effects on marine fauna. MARINE ENVIRONMENTAL RESEARCH 2020; 161:105110. [PMID: 32977204 DOI: 10.1016/j.marenvres.2020.105110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 05/27/2023]
Abstract
There is an increasing awareness of how damaging pollutants in the marine environment can be, however information on the effects of metal engineered nanoparticles (ENPs) on marine biota is still insufficient, despite an exponential rising in related publications in recent years. In order to provide an integrated insight on the present state of the art on metal ENP-related ecotoxicology studies on marine fauna, this review aimed to: (i) highlight the means of toxicity of metal ENPs in the marine environment, (ii) identify the principal biotic and abiotic factors that may alter metal ENP toxicity, and (iii) analyse and categorize results of these studies, including accumulation, molecular and histological biomarkers, genotoxicity and behavioural changes. Data retrieved from Scopus yielded 134 studies that met pre-established criteria. Most often, the target ENPs were titanium, zinc, copper or silver, and most studies (61.2%) focused on the phylum Mollusca. The degree of toxicity of metal ENPs was often dependent on the concentrations tested, length of exposure and the type of tissue sampled. Effects from simple tissue accumulation to DNA damage or behavioural alterations were identified, even when concentrations below environmentally available levels were used. It is proposed that other phyla besides the traditional Mollusca (and within it Bivalvia) should be used more often in this kind of studies, that exact pathways of toxicity be further explored, and lastly that co-stressors be used in order to best mimic conditions observed in nature. In this review, the current knowledge on engineered metal nanoparticles and their effects on marine fauna was summarized, highlighting present knowledge gaps. Guidelines for future studies focusing on under-developed subjects in ENP toxicology are also briefly provided.
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Affiliation(s)
- Joana Roma
- MARE - Marine and Environmental Sciences Centre, Faculty of Sciences, University of Lisboa, 1749-016, Lisboa, Portugal.
| | - Ana Rita Matos
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal da Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Catarina Vinagre
- MARE - Marine and Environmental Sciences Centre, Faculty of Sciences, University of Lisboa, 1749-016, Lisboa, Portugal; CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139, Faro, Portugal
| | - Bernardo Duarte
- MARE - Marine and Environmental Sciences Centre, Faculty of Sciences, University of Lisboa, 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal da Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
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3
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Panchagavya mediated copper nanoparticles synthesis, characterization and evaluating cytotoxicity in brine shrimp. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101132] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Allocca M, Mattera L, Bauduin A, Miedziak B, Moros M, De Trizio L, Tino A, Reiss P, Ambrosone A, Tortiglione C. An Integrated Multilevel Analysis Profiling Biosafety and Toxicity Induced by Indium- and Cadmium-Based Quantum Dots in Vivo. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3938-3947. [PMID: 30821457 DOI: 10.1021/acs.est.9b00373] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Indium phosphide quantum dots (QDs) have emerged as a new class of fluorescent nanocrystals for manifold applications, from biophotonics to nanomedicine. Recent efforts in improving the photoluminescence quantum yield, the chemical stability and the biocompatibility turned them into a valid alternative to well established Cd-based nanocrystals. In vitro studies provided first evidence for the lower toxicity of In-based QDs. Nonetheless, an urgent need exists for further assessment of the potential toxic effects in vivo. Here we use the freshwater polyp Hydra vulgaris, a well-established model previously adopted to assess the toxicity of CdSe/CdS nanorods and CdTe QDs. A systematic multilevel analysis was carried out in vivo, ex vivo, and in vitro comparing toxicity end points of CdSe- and InP-based QDs, passivated by ZnSe/ZnS shells and surface functionalized with penicillamine. Final results demonstrate that both the chemical composition of the QD core (InP vs CdSe) and the shell play a crucial role for final outcomes. Remarkably, in absence of in vivo alterations, cell and molecular alterations revealed hidden toxicity aspects, highlighting the biosafety of InP-based nanocrystals and outlining the importance of integrated multilevel analyses for proper QDs risk assessment.
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Affiliation(s)
- Mariateresa Allocca
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Lucia Mattera
- Univ. Grenoble-Alpes, CEA , CNRS, INAC-SyMMES, STEP , 38000 Grenoble , France
| | - Antonella Bauduin
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Beata Miedziak
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Maria Moros
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Luca De Trizio
- Nanochemistry Department , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Angela Tino
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Peter Reiss
- Univ. Grenoble-Alpes, CEA , CNRS, INAC-SyMMES, STEP , 38000 Grenoble , France
| | - Alfredo Ambrosone
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 134D , 80084 Fisciano , Italy
| | - Claudia Tortiglione
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
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5
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Noventa S, Hacker C, Correia A, Drago C, Galloway T. Gold nanoparticles ingested by oyster larvae are internalized by cells through an alimentary endocytic pathway. Nanotoxicology 2018; 12:901-913. [PMID: 29996700 DOI: 10.1080/17435390.2018.1487601] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The biological fate of nanoparticles (NPs) taken up by organisms from their environment is a crucial issue for assessing ecological hazard. Despite its importance, it has scarcely been addressed due to the technical difficulties of doing so in whole organism in vivo studies. Here, by using transmission electron microscopy and energy dispersive X-ray spectroscopy (TEM-EDS), we describe the key aspects that characterize the interaction between an aquatic organism of global ecological and economic importance, the early larval stage of the Japanese oyster (Crassostrea gigas), and model gold NPs dispersed in their environment. The small size of the model organism allowed for a high-throughput visualization of the subcellular distribution of NPs, providing a comprehensive and robust picture of the route of uptake, mechanism of cellular permeation, and the pathways of clearance counterbalancing bioaccumulation. We show that NPs are ingested by larvae and penetrate cells through alimentary pinocytic/phagocytic mechanisms. They undergo intracellular digestion and storage inside residual bodies, before excretion with feces or translocation to phagocytic coelomocytes of the visceral cavity for potential extrusion or further translocation. Our mechanistically-supported findings highlight the potential of oyster larvae and other organisms which feature intracellular digestion processes to be exposed to man-made NPs and thus any risks associated with their inherent toxicity.
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Affiliation(s)
- Seta Noventa
- a Department of Biosciences, College of Life and Environmental Sciences , University of Exeter , Exeter , UK
| | - Christian Hacker
- b Bioimaging Centre, College of Life and Environmental Sciences , University of Exeter , Exeter , UK
| | - Ana Correia
- b Bioimaging Centre, College of Life and Environmental Sciences , University of Exeter , Exeter , UK
| | - Claudia Drago
- a Department of Biosciences, College of Life and Environmental Sciences , University of Exeter , Exeter , UK
| | - Tamara Galloway
- a Department of Biosciences, College of Life and Environmental Sciences , University of Exeter , Exeter , UK
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Intraspecific variation in oxidative stress tolerance in a model cnidarian: Differences in peroxide sensitivity between and within populations of Nematostella vectensis. PLoS One 2018; 13:e0188265. [PMID: 29373572 PMCID: PMC5786289 DOI: 10.1371/journal.pone.0188265] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/05/2017] [Indexed: 12/27/2022] Open
Abstract
Nematostella vectensis is a member of the phylum Cnidaria, a lineage that includes anemones, corals, hydras, and jellyfishes. This estuarine anemone is an excellent model system for investigating the evolution of stress tolerance because it is easy to collect in its natural habitat and to culture in the laboratory, and it has a sequenced genome. Additionally, there is evidence of local adaptation to environmental stress in different N. vectensis populations, and abundant protein-coding polymorphisms have been identified, including polymorphisms in proteins that are implicated in stress responses. N. vectensis can tolerate a wide range of environmental parameters, and has recently been shown to have substantial intraspecific variation in temperature preference. We investigated whether different clonal lines of anemones also exhibit differential tolerance to oxidative stress. N. vectensis populations are continually exposed to reactive oxygen species (ROS) generated during cellular metabolism and by other environmental factors. Fifteen clonal lines of N. vectensis collected from four different estuaries were exposed to hydrogen peroxide. Pronounced differences in survival and regeneration were apparent between clonal lines collected from Meadowlands, NJ, Baruch, SC, and Kingsport, NS, as well as among 12 clonal lines collected from a single Cape Cod marsh. To our knowledge, this is the first example of intraspecific variability in oxidative stress resistance in cnidarians or in any marine animal. As oxidative stress often accompanies heat stress in marine organisms, resistance to oxidative stress could strongly influence survival in warming oceans. For example, while elevated temperatures trigger bleaching in corals, oxidative stress is thought to be the proximal trigger of bleaching at the cellular level.
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7
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Ambrosone A, Roopin M, Pelaz B, Abdelmonem AM, Ackermann LM, Mattera L, Allocca M, Tino A, Klapper M, Parak WJ, Levy O, Tortiglione C. Dissecting common and divergent molecular pathways elicited by CdSe/ZnS quantum dots in freshwater and marine sentinel invertebrates. Nanotoxicology 2017; 11:289-303. [DOI: 10.1080/17435390.2017.1295111] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Alfredo Ambrosone
- Istituto di Scienze Applicate e Sistemi Intelligenti “E. Caianiello”, Consiglio Nazionale delle Ricerche, Pozzuoli, Italy
| | - Modi Roopin
- The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat Gan, Israel
| | - Beatriz Pelaz
- Fachbereich Physik, Philipps Universität Marburg, Marburg, Germany
| | | | | | - Lucia Mattera
- Istituto di Scienze Applicate e Sistemi Intelligenti “E. Caianiello”, Consiglio Nazionale delle Ricerche, Pozzuoli, Italy
| | - Mariateresa Allocca
- Istituto di Scienze Applicate e Sistemi Intelligenti “E. Caianiello”, Consiglio Nazionale delle Ricerche, Pozzuoli, Italy
| | - Angela Tino
- Istituto di Scienze Applicate e Sistemi Intelligenti “E. Caianiello”, Consiglio Nazionale delle Ricerche, Pozzuoli, Italy
| | - Markus Klapper
- Max Planck Institute for Polymer Research, Mainz, Germany
| | - Wolfgang J. Parak
- Fachbereich Physik, Philipps Universität Marburg, Marburg, Germany
- CIC biomaGUNE, Donostia-San Sebastián, Spain
| | - Oren Levy
- The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat Gan, Israel
| | - Claudia Tortiglione
- Istituto di Scienze Applicate e Sistemi Intelligenti “E. Caianiello”, Consiglio Nazionale delle Ricerche, Pozzuoli, Italy
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8
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Ambrosone A, Marchesano V, Carregal-Romero S, Intartaglia D, Parak WJ, Tortiglione C. Control of Wnt/β-Catenin Signaling Pathway in Vivo via Light Responsive Capsules. ACS NANO 2016; 10:4828-4834. [PMID: 26799662 DOI: 10.1021/acsnano.5b07817] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The possibility to remotely manipulate intracellular pathways in single cells is among the current goals of biomedicine, demanding new strategies to control cell function and reprogramming cell fate upon external triggering. Optogenetics is one approach in this direction, allowing specific cell stimulation by external illumination. Here, we developed optical switchers of an ancient and highly conserved system controlling a variety of developmental and adult processes in all metazoans, from Hydra to mammals, the Wnt/β-catenin signaling pathway. An intracellular modulator of the Wnt pathway was enclosed into polyelectrolyte multilayer microcapsules engineered to include self-tracking (i.e., fluorescence labeling) and light mediated heating functionalities (i.e., plasmonic nanoparticles). Capsules were delivered in vivo to Hydra and NIR triggered drug release caused forced activation of the Wnt pathway. The possibility to remotely manipulate the Wnt pathway by optical switchers may be broadly translated to achieve spatiotemporal control of cell fate for new therapeutic strategies.
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Affiliation(s)
- Alfredo Ambrosone
- Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli 80078, Italy
| | - Valentina Marchesano
- Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli 80078, Italy
| | - Susana Carregal-Romero
- Fachbereich Physik, Philipps Universität Marburg , Marburg D-35032, Germany
- CIC biomaGUNE , Donostia-San Sebastián 20009, Spain
| | - Daniela Intartaglia
- Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli 80078, Italy
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps Universität Marburg , Marburg D-35032, Germany
- CIC biomaGUNE , Donostia-San Sebastián 20009, Spain
| | - Claudia Tortiglione
- Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli 80078, Italy
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9
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Marchesano V, Ambrosone A, Bartelmess J, Strisciante F, Tino A, Echegoyen L, Tortiglione C, Giordani S. Impact of Carbon Nano-Onions on Hydra vulgaris as a Model Organism for Nanoecotoxicology. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:1331-1350. [PMID: 28347067 PMCID: PMC5304644 DOI: 10.3390/nano5031331] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/05/2015] [Accepted: 08/06/2015] [Indexed: 12/25/2022]
Abstract
The toxicological effects of pristine and chemically modified carbon nano-onions (CNOs) on the development of the freshwater polyp Hydra vulgaris were investigated in order to elucidate the ecotoxicological effects of CNOs. Chemical modifications of the CNOs were accomplished by surface functionalization with benzoic acid, pyridine and pyridinium moieties. thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy confirmed the covalent surface functionalization of CNOs. Hydra specimens were exposed to the carbon nanomaterials by prolonged incubation within their medium. Uptake was monitored by optical microscopy, and the toxicological effects of the CNOs on Hydra behavior, morphology, as well as the long-term effects on the development and reproductive capability were examined. The obtained data revealed the absence of adverse effects of CNOs (in the range 0.05-0.1 mg/L) in vivo at the whole animal level. Together with previously performed in vitro toxicological analyses, our findings indicate the biosafety of CNOs and the feasibility of employing them as materials for biomedical applications.
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Affiliation(s)
- Valentina Marchesano
- Nano-Biomolecular Group, Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Alfredo Ambrosone
- Nano-Biomolecular Group, Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Juergen Bartelmess
- Nano Carbon Materials Lab, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy.
| | - Federica Strisciante
- Nano-Biomolecular Group, Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Angela Tino
- Nano-Biomolecular Group, Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso, El Paso, TX 79968, USA.
| | - Claudia Tortiglione
- Nano-Biomolecular Group, Istituto di Scienze Applicate e Sistemi Intelligenti "E.Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Silvia Giordani
- Nano Carbon Materials Lab, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy.
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Rajabi S, Ramazani A, Hamidi M, Naji T. Artemia salina as a model organism in toxicity assessment of nanoparticles. Daru 2015; 23:20. [PMID: 25888940 PMCID: PMC4344789 DOI: 10.1186/s40199-015-0105-x] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 02/16/2015] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Because of expanding presence of nanomaterials, there has been an increase in the exposure of humans to nanoparticles that is why nanotoxicology studies are important. A number of studies on the effects of nanomatrials in in vitro and in vivo systems have been published. Currently cytotoxicity of different nanoparticles is assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on different cell lines to determine cell viability, a tedious and expensive method. The aim of this study was to evaluate the Artemia salina test in comparison with the MTT assay in the assessment of cytotoxicity of nanostructures because the former method is more rapid and convenient and less expensive. METHODS At the first stage, toxicity of different nanoparticles with different concentrations (1.56-400 μg/mL) was measured by means of the brine shrimp lethality test. At the second stage, the effect of nanoparticles on the viability of the L929 cell line was assessed using the MTT assay. Experiments were conducted with each concentration in triplicate. RESULTS The results obtained from both tests (A. salina test and MTT assay) did not have statistically significant differences (P>0.05). CONCLUSIONS These findings suggest that the A. salina test may expedite toxicity experiments and decrease costs, and therefore, may be considered an alternative to the in vitro cell culture assay.
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Affiliation(s)
- Somayeh Rajabi
- Cell and Molecular Biology Departments, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran.
| | - Ali Ramazani
- Cell and Molecular Biology Departments, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran.
- Biotechnology Departments, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran.
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.
| | - Tahereh Naji
- Cell and Molecular Biology Departments, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran.
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11
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Abstract
The widespread entry of nanomaterials into manifold life fields posed serious concerns on environmental health and safety issues. Potential adverse effects of nanoparticles (NPs) are continuously faced using in vitro cell systems and by mean of cell and molecular biology tools, several mechanisms have been found beyond their toxicity. The evaluation of the in vivo possible consequences derived from exposure of living organisms to NPs is instead more complex but compulsory in view of their application for diagnosis or therapeutic purposes. Here the effects of NP-induced genetic alteration on the progeny of treated animals will be treated, considering selected species from invertebrate and vertebrates as examples of transgenerational transmission of NP toxicity. The effects on reproductive capability, fertility and embryogenesis observed in different animal species upon treatment with different materials will provide an overview of the current knowledge on the heritable feature of nanotoxicity.
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12
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Elran R, Raam M, Kraus R, Brekhman V, Sher N, Plaschkes I, Chalifa-Caspi V, Lotan T. Early and late response of Nematostella vectensis transcriptome to heavy metals. Mol Ecol 2014; 23:4722-36. [PMID: 25145541 DOI: 10.1111/mec.12891] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/22/2014] [Accepted: 08/13/2014] [Indexed: 12/28/2022]
Abstract
Environmental contamination from heavy metals poses a global concern for the marine environment, as heavy metals are passed up the food chain and persist in the environment long after the pollution source is contained. Cnidarians play an important role in shaping marine ecosystems, but environmental pollution profoundly affects their vitality. Among the cnidarians, the sea anemone Nematostella vectensis is an advantageous model for addressing questions in molecular ecology and toxicology as it tolerates extreme environments and its genome has been published. Here, we employed a transcriptome-wide RNA-Seq approach to analyse N. vectensis molecular defence mechanisms against four heavy metals: Hg, Cu, Cd and Zn. Altogether, more than 4800 transcripts showed significant changes in gene expression. Hg had the greatest impact on up-regulating transcripts, followed by Cu, Zn and Cd. We identified, for the first time in Cnidaria, co-up-regulation of immediate-early transcription factors such as Egr1, AP1 and NF-κB. Time-course analysis of these genes revealed their early expression as rapidly as one hour after exposure to heavy metals, suggesting that they may complement or substitute for the roles of the metal-mediating Mtf1 transcription factor. We further characterized the regulation of a large array of stress-response gene families, including Hsp, ABC, CYP members and phytochelatin synthase, that may regulate synthesis of the metal-binding phytochelatins instead of the metallothioneins that are absent from Cnidaria genome. This study provides mechanistic insight into heavy metal toxicity in N. vectensis and sheds light on ancestral stress adaptations.
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Affiliation(s)
- Ron Elran
- Marine Biology Department, The Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel
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13
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Ambrosone A, Pino PD, Marchesano V, Parak WJ, de la Fuente JM, Tortiglione C. Gold nanoprisms for photothermal cell ablation in vivo. Nanomedicine (Lond) 2014; 9:1913-22. [DOI: 10.2217/nnm.14.100] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Aim: To develop new methodologies for selective cell ablation in a temporally and spatially precise fashion in model organisms. Materials & methods: living polyps (Hydra vulgaris) treated with gold nanoprisms were near-infrared (NIR) irradiated and the photothermal effects evaluated at whole-animal, cellular and molecular levels. Results: Nanoprisms showed good efficiency of internalization in living specimens, with no sign of toxicity; under NIR irradiation they induced cell death and the overexpression of the hsp70 gene. Conclusion: gold nanoprisms could be employed as efficient heat mediators in model organisms, and NIR-triggered cell ablation may represent a new advanced tool to study cell function. Solving bioethical and economical issues, invertebrates may provide alternative models bridging the gap between cell research and preclinical studies of photothermal therapy.
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Affiliation(s)
- Alfredo Ambrosone
- Istituto di Cibernetica 'E.Caianiello', Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, 80078, Pozzuoli, Italy
| | - Pablo del Pino
- Instituto de Nanociencia de Aragon, University of Zaragoza. C/ Mariano Esquillor s/n, Zaragoza, Spain
| | - Valentina Marchesano
- Istituto di Cibernetica 'E.Caianiello', Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, 80078, Pozzuoli, Italy
| | - Wolfgang J Parak
- Philipps University of Marburg, FB Physics, Biophotonics, Renthof 7, D-35037 Marburg, Germany
| | - Jesus M de la Fuente
- Instituto de Nanociencia de Aragon, University of Zaragoza. C/ Mariano Esquillor s/n, Zaragoza, Spain
| | - Claudia Tortiglione
- Istituto di Cibernetica 'E.Caianiello', Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, 80078, Pozzuoli, Italy
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