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Nanotoxic profiling of novel iron oxide nanoparticles functionalized with perchloric acid and SiPEG as a radiographic contrast medium. BIOMED RESEARCH INTERNATIONAL 2015; 2015:183525. [PMID: 26075217 PMCID: PMC4449877 DOI: 10.1155/2015/183525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 01/10/2015] [Indexed: 12/02/2022]
Abstract
Emerging syntheses and findings of new metallic nanoparticles (MNPs) have become an important aspect in various fields including diagnostic imaging. To date, iodine has been utilized as a radiographic contrast medium. However, the raise concern of iodine threats on iodine-intolerance patient has led to search of new contrast media with lower toxic level. In this animal modeling study, 14 nm iron oxide nanoparticles (IONPs) with silane-polyethylene glycol (SiPEG) and perchloric acid have been assessed for toxicity level as compared to conventional iodine. The nanotoxicity of IONPs was evaluated in liver biochemistry, reactive oxygen species production (ROS), lipid peroxidation mechanism, and ultrastructural evaluation using transmission electron microscope (TEM). The hematological analysis and liver function test (LFT) revealed that most of the liver enzymes were significantly higher in iodine-administered group as compared to those in normal and IONPs groups (P < 0.05). ROS production assay and lipid peroxidation indicator, malondialdehyde (MDA), also showed significant reductions in comparison with iodine group (P < 0.05). TEM evaluation yielded the aberration of nucleus structure of iodine-administered group as compared to those in control and IONPs groups. This study has demonstrated the less toxic properties of IONPs and it may postulate that IONPs are safe to be applied as radiographic contrast medium.
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Ibarra LE, Tarres L, Bongiovanni S, Barbero CA, Kogan MJ, Rivarola VA, Bertuzzi ML, Yslas EI. Assessment of polyaniline nanoparticles toxicity and teratogenicity in aquatic environment using Rhinella arenarum model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 114:84-92. [PMID: 25617831 DOI: 10.1016/j.ecoenv.2015.01.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 01/12/2015] [Accepted: 01/13/2015] [Indexed: 06/04/2023]
Abstract
With the rapid growth of nanotechnology and the applications of nanoparticles, environmental exposure to these particles is increasing. However, their impact in human and environmental health is not well studied. Anurans, with life stage comprising embryos, tadpoles and adults, have an extremely permeable skin which makes them excellent indicators of environmental health. This study evaluated the acute toxicity effects of polyaniline nanoparticles (PANI-Np) in different dispersant on embryos and larvae of Rhinella arenarum. The results showed that LC50 of PANI-Np dispersed in polyvinylpyrrolidone (PVP) were 1,500 mg/L, while LC50 by PANI-Np dispersed in PVP+PNIPAM (polyN-isopropylacrilamide) showed a highest toxicity (1,170 mg/L). The embryo teratogenicity increased with increasing exposure concentration in both kinds of PANI-Np although in PANI-Np1, there is an increased teratogenic effect associated with the polymer stabilizer PVP.
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Affiliation(s)
- Luis E Ibarra
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina
| | - Lucrecia Tarres
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina
| | - Silvestre Bongiovanni
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina
| | - César A Barbero
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina
| | - Marcelo J Kogan
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Viviana A Rivarola
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina
| | - Mabel L Bertuzzi
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina
| | - Edith I Yslas
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X580BYA Río Cuarto, Argentina.
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Tang Y, Shen Y, Huang L, Lv G, Lei C, Fan X, Lin F, Zhang Y, Wu L, Yang Y. In vitro cytotoxicity of gold nanorods in A549 cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 39:871-878. [PMID: 25791752 DOI: 10.1016/j.etap.2015.02.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 02/06/2015] [Accepted: 02/07/2015] [Indexed: 06/04/2023]
Abstract
Gold nanoparticles, which have unique physicochemical characteristics, are being used for an increasingly wide range of applications in biomedical research. In this study, gold nanorods (width of 25 nm, length of 52 nm) were found to be internalized by A549 cells and were primarily localized in the lysosomes and membranous vesicles. The integrity of the membranes of A549 cells exposed to gold nanorods for 4h was damaged, as indicated by laser scanning confocal microscopy (LSCM). Increased lactate dehydrogenase (LDH) leakage and decreased cell viability further indicated the concentration-dependent cytotoxicity of the gold nanorods to the A549 cells. Reactive oxygen species (ROS) production was induced in the A549 cells by the gold nanorods, and this effect was positively correlated with the concentration of the gold nanorods. The results of this study indicated that exposure to gold nanorods caused dose-dependent cytotoxicity in A549 cells and that oxidative stress may be the main factor causing cytotoxicity.
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Affiliation(s)
- Ying Tang
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China
| | - Yafeng Shen
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China
| | - Libin Huang
- Department of Science & Research, Second Military Medical University, Shanghai 200433, China
| | - Gaojian Lv
- College of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Changhai Lei
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China
| | - Xiaoyan Fan
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China
| | - Fangxing Lin
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China
| | - Yuxia Zhang
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China
| | - Lihui Wu
- Department of Cardiothoracic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200433, China.
| | - Yongji Yang
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China.
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Delaval M, Boland S, Solhonne B, Nicola MA, Mornet S, Baeza-Squiban A, Sallenave JM, Garcia-Verdugo I. Acute exposure to silica nanoparticles enhances mortality and increases lung permeability in a mouse model of Pseudomonas aeruginosa pneumonia. Part Fibre Toxicol 2015; 12:1. [PMID: 25605549 PMCID: PMC4318199 DOI: 10.1186/s12989-014-0078-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 12/24/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The lung epithelium constitutes the first barrier against invading pathogens and also a major surface potentially exposed to nanoparticles. In order to ensure and preserve lung epithelial barrier function, the alveolar compartment possesses local defence mechanisms that are able to control bacterial infection. For instance, alveolar macrophages are professional phagocytic cells that engulf bacteria and environmental contaminants (including nanoparticles) and secrete pro-inflammatory cytokines to effectively eliminate the invading bacteria/contaminants. The consequences of nanoparticle exposure in the context of lung infection have not been studied in detail. Previous reports have shown that sequential lung exposure to nanoparticles and bacteria may impair bacterial clearance resulting in increased lung bacterial loads, associated with a reduction in the phagocytic capacity of alveolar macrophages. RESULTS Here we have studied the consequences of SiO2 nanoparticle exposure on Pseudomonas aeruginosa clearance, Pseudomonas aeruginosa-induced inflammation and lung injury in a mouse model of acute pneumonia. We observed that pre-exposure to SiO2 nanoparticles increased mice susceptibility to lethal pneumonia but did not modify lung clearance of a bioluminescent Pseudomonas aeruginosa strain. Furthermore, internalisation of SiO2 nanoparticles by primary alveolar macrophages did not reduce the capacity of the cells to clear Pseudomonas aeruginosa. In our murine model, SiO2 nanoparticle pre-exposure preferentially enhanced Pseudomonas aeruginosa-induced lung permeability (the latter assessed by the measurement of alveolar albumin and IgM concentrations) rather than contributing to Pseudomonas aeruginosa-induced lung inflammation (as measured by leukocyte recruitment and cytokine concentration in the alveolar compartment). CONCLUSIONS We show that pre-exposure to SiO2 nanoparticles increases mice susceptibility to lethal pneumonia but independently of macrophage phagocytic function. The deleterious effects of SiO2 nanoparticle exposure during Pseudomonas aeruginosa-induced pneumonia are related to alterations of the alveolar-capillary barrier rather than to modulation of the inflammatory responses.
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Affiliation(s)
- Mathilde Delaval
- Univ Paris Diderot. Sorbone Paris Cité. Unit of Functional and Adaptive Biology (BFA) UMR 8251, CNRS, Laboratory of Molecular and Cellular Responses to Xenobiotics, 5 rue Thomas Mann, 75013, Paris, France.
| | - Sonja Boland
- Univ Paris Diderot. Sorbone Paris Cité. Unit of Functional and Adaptive Biology (BFA) UMR 8251, CNRS, Laboratory of Molecular and Cellular Responses to Xenobiotics, 5 rue Thomas Mann, 75013, Paris, France.
| | - Brigitte Solhonne
- Unité de Défense Innée et Inflammation, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France. .,INSERM U874, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France. .,INSERM U1152, Faculté de Médicine site Bichat, Université Paris Diderot, 16, rue Henri Huchard, 75018, Paris, France.
| | - Marie-Anne Nicola
- Plateforme d'imagerie dynamique, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France.
| | - Stéphane Mornet
- CNRS, Univ. Bordeaux, ICMCB, UPR 9048, 87 Avenue du Docteur A. Schweitzer, Pessac cedex, F-33600, France.
| | - Armelle Baeza-Squiban
- Univ Paris Diderot. Sorbone Paris Cité. Unit of Functional and Adaptive Biology (BFA) UMR 8251, CNRS, Laboratory of Molecular and Cellular Responses to Xenobiotics, 5 rue Thomas Mann, 75013, Paris, France.
| | - Jean-Michel Sallenave
- Unité de Défense Innée et Inflammation, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France. .,INSERM U874, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France. .,INSERM U1152, Faculté de Médicine site Bichat, Université Paris Diderot, 16, rue Henri Huchard, 75018, Paris, France. .,Université Sorbonne Paris Cité, Cellule Pasteur, Université Paris Diderot, rue du Dr Roux, 75015, Paris, France.
| | - Ignacio Garcia-Verdugo
- Unité de Défense Innée et Inflammation, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France. .,INSERM U874, Institut Pasteur, 25 rue du Dr Roux, 75015, Paris, France. .,INSERM U1152, Faculté de Médicine site Bichat, Université Paris Diderot, 16, rue Henri Huchard, 75018, Paris, France. .,Université Sorbonne Paris Cité, Cellule Pasteur, Université Paris Diderot, rue du Dr Roux, 75015, Paris, France.
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Sisler JD, Pirela SV, Friend S, Farcas M, Schwegler-Berry D, Shvedova A, Castranova V, Demokritou P, Qian Y. Small airway epithelial cells exposure to printer-emitted engineered nanoparticles induces cellular effects on human microvascular endothelial cells in an alveolar-capillary co-culture model. Nanotoxicology 2014; 9:769-79. [PMID: 25387250 DOI: 10.3109/17435390.2014.976603] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The printer is one of the most common office equipment. Recently, it was reported that toner formulations for printing equipment constitute nano-enabled products (NEPs) and contain engineered nanomaterials (ENMs) that become airborne during printing. To date, insufficient research has been performed to understand the potential toxicological properties of printer-emitted particles (PEPs) with several studies using bulk toner particles as test particles. These studies demonstrated the ability of toner particles to cause chronic inflammation and fibrosis in animal models. However, the toxicological implications of inhalation exposures to ENMs emitted from laser printing equipment remain largely unknown. The present study investigates the toxicological effects of PEPs using an in vitro alveolar-capillary co-culture model with Human Small Airway Epithelial Cells (SAEC) and Human Microvascular Endothelial Cells (HMVEC). Our data demonstrate that direct exposure of SAEC to low concentrations of PEPs (0.5 and 1.0 µg/mL) caused morphological changes of actin remodeling and gap formations within the endothelial monolayer. Furthermore, increased production of reactive oxygen species (ROS) and angiogenesis were observed in the HMVEC. Analysis of cytokine and chemokine levels demonstrates that interleukin (IL)-6 and MCP-1 may play a major role in the cellular communication observed between SAEC and HMVEC and the resultant responses in HMVEC. These data indicate that PEPs at low, non-cytotoxic exposure levels are bioactive and affect cellular responses in an alveolar-capillary co-culture model, which raises concerns for potential adverse health effects.
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Affiliation(s)
- Jennifer D Sisler
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Saftey and Health , Morgantown, WV , USA
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Dwivedi S, Siddiqui MA, Farshori NN, Ahamed M, Musarrat J, Al-Khedhairy AA. Synthesis, characterization and toxicological evaluation of iron oxide nanoparticles in human lung alveolar epithelial cells. Colloids Surf B Biointerfaces 2014; 122:209-215. [DOI: 10.1016/j.colsurfb.2014.06.064] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 06/09/2014] [Accepted: 06/30/2014] [Indexed: 01/16/2023]
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Singh D, Singh S, Sahu J, Srivastava S, Singh MR. Ceramic nanoparticles: Recompense, cellular uptake and toxicity concerns. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2014; 44:401-9. [PMID: 25229834 DOI: 10.3109/21691401.2014.955106] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Over the past few years, nanoparticles and their role in drug delivery have been the centre of attraction as new drug delivery systems. Various forms of nanosystems have been designed, such as nanoclays, scaffolds and nanotubes, having numerous applications in areas such as drug loading, target cell uptake, bioassay and imaging. The present study discusses various types of nanoparticles, with special emphasis on ceramic nanocarriers. Ceramic materials have high mechanical strength, good body response and low or non-existing biodegradability. In this article, the various aspects concerning ceramic nanoparticles, such as their advantages over other systems, their cellular uptake and toxicity concerns are discussed in detail.
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Affiliation(s)
- Deependra Singh
- a Pharmaceutical Biotechnology Laboratory, University Institute of Pharmacy, Pt. Ravishankar Shukla University , Raipur , Chhattisgarh , India
| | - Satpal Singh
- a Pharmaceutical Biotechnology Laboratory, University Institute of Pharmacy, Pt. Ravishankar Shukla University , Raipur , Chhattisgarh , India
| | - Jageshwari Sahu
- a Pharmaceutical Biotechnology Laboratory, University Institute of Pharmacy, Pt. Ravishankar Shukla University , Raipur , Chhattisgarh , India
| | - Shikha Srivastava
- a Pharmaceutical Biotechnology Laboratory, University Institute of Pharmacy, Pt. Ravishankar Shukla University , Raipur , Chhattisgarh , India
| | - Manju Rawat Singh
- a Pharmaceutical Biotechnology Laboratory, University Institute of Pharmacy, Pt. Ravishankar Shukla University , Raipur , Chhattisgarh , India
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When neurons encounter nanoobjects: spotlight on calcium signalling. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:9621-37. [PMID: 25229698 PMCID: PMC4199039 DOI: 10.3390/ijerph110909621] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 12/30/2022]
Abstract
Nanosized objects are increasingly present in everyday life and in specialized technological applications. In recent years, as a consequence of concern about their potential adverse effects, intense research effort has led to a better understanding of the physicochemical properties that underlie their biocompatibility or potential toxicity, setting the basis for a rational approach to their use in the different fields of application. Among the functional parameters that can be perturbed by interaction between nanoparticles (NPs) and living structures, calcium homeostasis is one of the key players and has been actively investigated. One of the most relevant biological targets is represented by the nervous system (NS), since it has been shown that these objects can access the NS through several pathways; moreover, engineered nanoparticles are increasingly developed to be used for imaging and drug delivery in the NS. In neurons, calcium homeostasis is tightly regulated through a complex set of mechanisms controlling both calcium increases and recovery to the basal levels, and even minor perturbations can have severe consequences on neuronal viability and function, such as excitability and synaptic transmission. In this review, we will focus on the available knowledge about the effects of NPs on the mechanisms controlling calcium signalling and homeostasis in neurons. We have taken into account the data related to environmental NPs, and, in more detail, studies employing engineered NPs, since their more strictly controlled chemical and physical properties allow a better understanding of the relevant parameters that determine the biological responses they elicit. The literature on this specific subject is all quite recent, and we have based the review on the data present in papers dealing strictly with nanoparticles and calcium signals in neuronal cells; while they presently amount to about 20 papers, and no related review is available, the field is rapidly growing and some relevant information is already available. A few general findings can be summarized: most NPs interfere with neuronal calcium homeostasis by interactions at the plasmamembrane, and not following their internalization; influx from the extracellular medium is the main mechanism involved; the effects are dependent in a complex way from concentration, size and surface properties.
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Abstract
Gene therapy attempts the insertion and expression of exogenous genetic material in cells for therapeutic purposes. Conceived in the 1960s, gene therapy reached its first clinical trial at the end of the 1980s and by December 2013 around 600 genuine open clinical trials of gene therapy were registered at NIH Clinical Trials Database. Here, we summarize the current efforts towards the development of gene therapy in Latin America. Our survey shows that the number of scientists involved in the development of gene therapy and DNA vaccines in Latin America is still very low. Higher levels of investment in this technology are necessary to boost the advancement of innovation and intellectual property in this field in a way that would ease both the social and financial burden of various medical conditions in Latin America.
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Affiliation(s)
- Rafael Linden
- Instituto de Biofísica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ursula Matte
- Centro de Terapia Gênica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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Mbundi L, Gallar-Ayala H, Khan MR, Barber JL, Losada S, Busquets R. Advances in the Analysis of Challenging Food Contaminants. ADVANCES IN MOLECULAR TOXICOLOGY 2014. [DOI: 10.1016/b978-0-444-63406-1.00002-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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