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Law SSY, Miyamoto T, Numata K. Organelle-targeted gene delivery in plants by nanomaterials. Chem Commun (Camb) 2023. [PMID: 37183975 DOI: 10.1039/d3cc00962a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Genetic engineering of plants has revolutionized agriculture and has had a significant impact on our everyday life. It has allowed for the production of crops with longer shelf lives, enhanced yields and resistance to pests and disease. The application of nanomaterials in plant genetic engineering has further augmented these programs with higher delivery efficiencies, biocompatibility and the potential for plant regeneration. In particular, subcellular targeting using nanomaterials has recently become possible with the cutting-edge developments within nanomaterials, but remains challenging despite the promise in organellar engineering for the introduction of useful traits and the elucidation of subcellular interactions. This feature article provides an overview of nanomaterial delivery within plants and highlights the application of recent progress in nanomaterials for subcellular organelle-targeted delivery.
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Affiliation(s)
- Simon Sau Yin Law
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan.
| | - Takaaki Miyamoto
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan.
| | - Keiji Numata
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan.
- Department of Material Chemistry, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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2
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Keshavan S, Bannuscher A, Drasler B, Barosova H, Petri-Fink A, Rothen-Rutishauser B. Comparing species-different responses in pulmonary fibrosis research: Current understanding of in vitro lung cell models and nanomaterials. Eur J Pharm Sci 2023; 183:106387. [PMID: 36652970 DOI: 10.1016/j.ejps.2023.106387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/16/2022] [Accepted: 01/14/2023] [Indexed: 01/16/2023]
Abstract
Pulmonary fibrosis (PF) is a chronic, irreversible lung disease that is typically fatal and characterized by an abnormal fibrotic response. As a result, vast areas of the lungs are gradually affected, and gas exchange is impaired, making it one of the world's leading causes of death. This can be attributed to a lack of understanding of the onset and progression of the disease, as well as a poor understanding of the mechanism of adverse responses to various factors, such as exposure to allergens, nanomaterials, environmental pollutants, etc. So far, the most frequently used preclinical evaluation paradigm for PF is still animal testing. Nonetheless, there is an urgent need to understand the factors that induce PF and find novel therapeutic targets for PF in humans. In this regard, robust and realistic in vitro fibrosis models are required to understand the mechanism of adverse responses. Over the years, several in vitro and ex vivo models have been developed with the goal of mimicking the biological barriers of the lung as closely as possible. This review summarizes recent progress towards the development of experimental models suitable for predicting fibrotic responses, with an emphasis on cell culture methods, nanomaterials, and a comparison of results from studies using cells from various species.
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Affiliation(s)
- Sandeep Keshavan
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland
| | - Anne Bannuscher
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland
| | - Barbara Drasler
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland
| | - Hana Barosova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, Prague 14220, Czech Republic
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland; Chemistry Department, University of Fribourg, Chemin du Musée 9, Fribourg 1700, Switzerland
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3
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Analysis of Nanomaterials on Biological and Environmental Systems and New Analytical Methods for Improved Detection. Int J Mol Sci 2022; 23:ijms23116331. [PMID: 35683010 PMCID: PMC9181213 DOI: 10.3390/ijms23116331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 05/28/2022] [Accepted: 06/03/2022] [Indexed: 11/30/2022] Open
Abstract
The advancing field of nanoscience has produced lower mass, smaller size, and expanded chemical composition nanoparticles over recent years. These new nanoparticles have challenged traditional analytical methods of qualification and quantification. Such advancements in nanoparticles and nanomaterials have captured the attention of toxicologists with concerns regarding the environment and human health impacts. Given that nanoparticles are only limited by size (1–100 nm), their chemical and physical characteristics can drastically change and thus alter their overall nanotoxicity in unpredictable ways. A significant limitation to the development of nanomaterials is that traditional regulatory and scientific methods used to assess the biological and environmental toxicity of chemicals do not generally apply to the assessment of nanomaterials. Significant research effort has been initiated, but much more is still needed to develop new and improved analytical measurement methods for detecting and quantitating nanomaterials in biological and environmental systems.
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4
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Liu X, Ge W. The Emerging Role of Ultrasonic Nanotechnology for Diagnosing and Treatment of Diseases. Front Med (Lausanne) 2022; 9:814986. [PMID: 35273976 PMCID: PMC8901503 DOI: 10.3389/fmed.2022.814986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/25/2022] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology has been commonly used in a variety of applications in recent years. Nanomedicine has also gotten a lot of attention in the medical and treatment fields. Ultrasonic technology is already being used in research as a powerful tool for manufacturing nonmaterial and in the decoration of catalyst supports for energy applications and material processing. For the development of nanoparticles and the decoration of catalytic assisted powders with nanoparticles, low or high-frequency Ultrasonic are used. The Ultrasonic is frequently used in joint venture with the nanotechnology from the past few years and bring tremendous success in various diseases diagnosing and treatment. Numerous kinds of nanoparticles are fabricated with desired capabilities and targeted toward different targets. This review first highlights the Ultrasonic Treatment and processing of Nanoparticles for Pharmaceuticals. Next, we explain various nanoparticles with ultrasonic technology for different diagnosing and treatment of various diseases. Finally, we explain the challenges face by current approaches for their translation in clinics.
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Affiliation(s)
- Xinying Liu
- Department of Ultrasonography, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Medical College, Hangzhou, China
| | - Weidong Ge
- Department of Ultrasonography, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Medical College, Hangzhou, China
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5
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Rana S, Varadwaj GBB, Jonnalagadda SB. Green Synthesis of Cu Nanoparticles in Modulating the Reactivity of Amine-Functionalized Composite Materials towards Cross-Coupling Reactions. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2260. [PMID: 34578576 PMCID: PMC8464933 DOI: 10.3390/nano11092260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 12/27/2022]
Abstract
Control over both dispersion and the particle size distribution of supported metal particles is of paramount importance for the catalytic activity of composite materials. We describe the synthesis of materials with Cu nanoparticles well-dispersed on different amine-functionalized supports, using the extract of Wallich Spurge as a green, reducing agent. Graphene oxide (GO), mesoporous silica (MCM-41), mesoporous zirconia, and reduced graphene oxide-mesoporous silica (RGO-MCM-41) were explored as supports. Cu nanoparticles were better stabilized on RGO-MCM-41 compared to other supports. The novel composite materials were characterized by X-ray diffraction (XRD), Raman spectra, Scanning electron microscope (SEM), Transmission electron microscopy analysis and HR-TEM. SEM and EDX techniques. High angle XRD confirmed the conversion of graphene oxide to reduced graphene oxide (RGO) with plant extract as a reducing agent. Both XRD and TEM techniques confirmed the Cu nanoparticle formation. The catalytic activity of all the prepared materials for the Ullmann coupling reactions of carbon-, oxygen-, and nitrogen-containing nucleophiles with iodobenzene was evaluated. From the results, 5 wt% Cu on amine-functionalized reduced graphene oxide/mesoporous silica nanocomposite (5 wt%Cu(0)-AAPTMS@RGO-MCM-41) exhibited excellent efficiency with 97% yield of the C-C coupling product in water at 80 °C in 5 h. The activity remained unaltered almost up to the fourth cycle. The Cu nanoparticles stabilized by organic amine group on RGO hybrid facilitated sustained activity.
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Affiliation(s)
- Surjyakanta Rana
- School of Chemistry & Physics, College of Agriculture, Engineering & Science, University of KwaZulu-Natal, Durban 4041, South Africa;
| | | | - Sreekanth B. Jonnalagadda
- School of Chemistry & Physics, College of Agriculture, Engineering & Science, University of KwaZulu-Natal, Durban 4041, South Africa;
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6
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Mohanta D, Patnaik S, Sood S, Das N. Carbon nanotubes: Evaluation of toxicity at biointerfaces. J Pharm Anal 2019; 9:293-300. [PMID: 31929938 PMCID: PMC6951486 DOI: 10.1016/j.jpha.2019.04.003] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/12/2019] [Accepted: 04/23/2019] [Indexed: 11/21/2022] Open
Abstract
Carbon nanotubes (CNTs) are a class of carbon allotropes with interesting properties that make them productive materials for usage in various disciplines of nanotechnology such as in electronics equipments, optics and therapeutics. They exhibit distinguished properties viz., strength, and high electrical and heat conductivity. Their uniqueness can be attributed due to the bonding pattern present between the atoms which are very strong and also exhibit high extreme aspect ratios. CNTs are classified as single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) on the basis of number of sidewalls present and the way they are arranged spatially. Application of CNTs to improve the performance of many products, especially in healthcare, has led to an occupational and public exposure to these nanomaterials. Hence, it becomes a major concern to analyze the issues pertaining to the toxicity of CNTs and find the best suitable ways to counter those challenges. This review summarizes the toxicity issues of CNTs in vitro and in vivo in different organ systems (bio interphases) of the body that result in cellular toxicity.
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Affiliation(s)
- Debashish Mohanta
- Department of Biotechnology, Manav Rachna International Institute of Research Studies, Faridabad, Haryana, India
| | - Soma Patnaik
- Department of Biotechnology, Manav Rachna International Institute of Research Studies, Faridabad, Haryana, India
| | - Sanchit Sood
- Department of Biotechnology, Manav Rachna International Institute of Research Studies, Faridabad, Haryana, India
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7
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Snyder RJ, Verhein KC, Vellers HL, Burkholder AB, Garantziotis S, Kleeberger SR. Multi-walled carbon nanotubes upregulate mitochondrial gene expression and trigger mitochondrial dysfunction in primary human bronchial epithelial cells. Nanotoxicology 2019; 13:1344-1361. [PMID: 31478767 DOI: 10.1080/17435390.2019.1655107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Nanomaterials are a relatively new class of materials that acquire novel properties based on their reduced size. While these materials have widespread use in consumer products and industrial applications, the potential health risks associated with exposure to them remain to be fully characterized. Carbon nanotubes are among the most widely used nanomaterials and have high potential for human exposure by inhalation. These nanomaterials are known to penetrate the cell membrane and interact with intracellular molecules, resulting in a multitude of documented effects, including oxidative stress, genotoxicity, impaired metabolism, and apoptosis. While the capacity for carbon nanotubes to damage nuclear DNA has been established, the effect of exposure on mitochondrial DNA (mtDNA) is relatively unexplored. In this study, we investigated the potential of multi-walled carbon nanotubes (MWCNTs) to impair mitochondrial gene expression and function in human bronchial epithelial cells (BECs). Primary BECs were exposed to sub-cytotoxic doses (up to 3 μg/ml) of MWCNTs for 5 d and assessed for changes in expression of all mitochondrial protein-coding genes, heteroplasmies, and insertion/deletion mutations (indels). Exposed cells were also measured for cytotoxicity, metabolic function, mitochondrial abundance, and mitophagy. We found that MWCNTs upregulated mitochondrial gene expression, while significantly decreasing oxygen consumption rate and mitochondrial abundance. Confocal microscopy revealed induction of mitophagy by 2 hours of exposure. Mitochondrial DNA heteroplasmy and insertion/deletion mutations were not significantly affected by any treatment. We conclude that carbon nanotubes cause mitochondrial dysfunction that leads to mitophagy in exposed BECs via a mechanism unrelated to its reported genotoxicity.
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Affiliation(s)
- Ryan J Snyder
- Immunity, Inflammation & Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Durham, NC, USA
| | | | - Heather L Vellers
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX, USA
| | - Adam B Burkholder
- Immunity, Inflammation & Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Durham, NC, USA
| | - Stavros Garantziotis
- Immunity, Inflammation & Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Durham, NC, USA
| | - Steven R Kleeberger
- Immunity, Inflammation & Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Durham, NC, USA
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8
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Trovato MC, Andronico D, Sciacchitano S, Ruggeri RM, Picerno I, Di Pietro A, Visalli G. Nanostructures: between natural environment and medical practice. REVIEWS ON ENVIRONMENTAL HEALTH 2018; 33:295-307. [PMID: 30205650 DOI: 10.1515/reveh-2017-0036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Abstract
Nanoparticles (NPs) are small structures under 100 nm in dimension. Interrelationships among the morphological parameters and toxicity of NPs have been the focus of several investigations that assessed potential health risk in environmentally-exposed subjects and the realistic uses of NPs in medical practice. In the current review, we provide a summary of the cellular mechanisms of membrane-mediated transport, including old and novel molecules that transport nanostructures across cellular membranes. The effects of geochemical exposure to natural NPs are evaluated through epidemiological data and cancerous pathways activated by Fe2+ NPs. Specifically, we discuss screening for papillary thyroid carcinomas in the inhabitants of the Sicilian volcanic area surrounding Mount Etna to compare the incidence of thyroid carcinoma in this population. Lastly, considering the increased production of carbon nanotubes (CNTs), we examine the toxicity and potential use of these engineered NPs in drug delivery of an extensive amount of therapeutic and imaging molecules (theranosis) that can be conjugated to CNTs.
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Affiliation(s)
- Maria Concetta Trovato
- Department of Clinical and Experimental Medicine, Policlinico Universitario, Consolare Valeria 1, Messina, Italy
| | - Daniele Andronico
- Istituto Nazionale di Geofisica e Vulcanologia (INGV), Osservatorio Etneo, Sezione di Catania, Piazza Roma 2, Catania, Italy
| | - Salvatore Sciacchitano
- Department of Clinical and Molecular Medicine, Sapienza University, Policlinico Umberto I, Viale Regina Elena n. 324, Rome, Italy
- Laboratorio di Ricerca Biomedica, Fondazione Università Niccolò Cusano per la Ricerca Medico Scientifica, Via Don Carlo Gnocchi 3, Rome, Italy
| | - Rosaria Maddalena Ruggeri
- Department of Clinical and Experimental Medicine, Policlinico Universitario, Consolare Valeria 1, Messina, Italy
| | - Isa Picerno
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico Universitario, Consolare Valeria 1, Messina, Italy
| | - Angela Di Pietro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico Universitario, Consolare Valeria 1, Messina, Italy
| | - Giuseppa Visalli
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico Universitario, Consolare Valeria 1, Messina, Italy
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9
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Sinis SI, Hatzoglou C, Gourgoulianis KI, Zarogiannis SG. Carbon Nanotubes and Other Engineered Nanoparticles Induced Pathophysiology on Mesothelial Cells and Mesothelial Membranes. Front Physiol 2018; 9:295. [PMID: 29651248 PMCID: PMC5884948 DOI: 10.3389/fphys.2018.00295] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 03/12/2018] [Indexed: 12/11/2022] Open
Abstract
Nanoparticles have great potential for numerous applications due to their unique physicochemical properties. However, concerns have been raised that they may induce deleterious effects on biological systems. There is accumulating evidence that, like asbestos, inhaled nanomaterials of >5 μm and high aspect ratio (3:1), particularly rod-like carbon nanotubes, may inflict pleural disease including mesothelioma. Additionally, a recent set of case reports suggests that inhalation of polyacrylate/nanosilica could in part be associated with inflammation and fibrosis of the pleura of factory workers. However, the adverse outcomes of nanoparticle exposure to mesothelial tissues are still largely unexplored. In that context, the present review aims to provide an overview of the relevant pathophysiological implications involving toxicological studies describing effects of engineered nanoparticles on mesothelial cells and membranes. In vitro studies primarily emphasize on simulating cellular uptake and toxicity of nanotubes on benign or malignant cell lines. On the other hand, in vivo studies focus on illustrating endpoints of serosal pathology in rodent animal models. From a molecular aspect, some nanoparticle categories are shown to be cytotoxic and genotoxic after acute treatment, whereas chronic incubation may lead to malignant-like transformation. At an organism level, a number of fibrous shaped nanotubes are related with features of chronic inflammation and MWCNT-7 is the only type to consistently inflict mesothelioma.
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Affiliation(s)
- Sotirios I Sinis
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Chrissi Hatzoglou
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece.,Department of Respiratory Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Konstantinos I Gourgoulianis
- Department of Respiratory Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Sotirios G Zarogiannis
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece.,Department of Respiratory Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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10
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Visalli G, Currò M, Iannazzo D, Pistone A, Pruiti Ciarello M, Acri G, Testagrossa B, Bertuccio MP, Squeri R, Di Pietro A. In vitro assessment of neurotoxicity and neuroinflammation of homemade MWCNTs. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 56:121-128. [PMID: 28910697 DOI: 10.1016/j.etap.2017.09.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/05/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
Multi walled carbon nanotubes (MWCNTs) activate pathways involved in cytotoxicity, genotoxicity and inflammation. Inhaled MWCNTs are translocated to extra pulmonary organs and their hydrophobicity allows them to cross the blood-brain barrier (BBB). Further exposure of central nervous system (CNS) occurs via olfactory neurons. Using differentiated SH-SY5Y, we studied the neurotoxicity and neuroinflammation of pristine and functionalised MWCNTs. ROS overproduction was dose- and time-dependent (P<0.01) and was related to mitochondrial impairment, DNA damage and decreased viability (P<0.05). Transcript levels of TNFα, IL-1β and IL-6 increased, as confirmed by an ELISA test. Raman spectra were acquired to assess MWCNT-cells interactions. The almost superimposable pro-oxidant activity of both CNTs could be imputable to excessive lengths with regard to the pristine MWCNTs and to the eroded surface, causing increased reactivity, with regard to functionalised MWCNTs. Considering the ease with which lightweight MWCNTs aerosolize and the increased production, the results underlined the potential onset of neurodegenerative diseases, due to unintentional MWCNT exposure.
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Affiliation(s)
- Giuseppa Visalli
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | - Monica Currò
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | | | | | - Marianna Pruiti Ciarello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | - Giuseppe Acri
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | - Barbara Testagrossa
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | - Maria Paola Bertuccio
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | - Raffaele Squeri
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
| | - Angela Di Pietro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging". University of Messina, Via C. Valeria, I-98100, Messina, Italy.
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11
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Snyder RJ, Hussain S, Tucker CJ, Randell SH, Garantziotis S. Impaired Ciliogenesis in differentiating human bronchial epithelia exposed to non-Cytotoxic doses of multi-walled carbon Nanotubes. Part Fibre Toxicol 2017; 14:44. [PMID: 29132433 PMCID: PMC5683528 DOI: 10.1186/s12989-017-0225-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 11/03/2017] [Indexed: 01/08/2023] Open
Abstract
Background Multi-walled carbon nanotubes (MWCNTs) are engineered nanomaterials used for a variety of industrial and consumer products. Their high tensile strength, hydrophobicity, and semi-conductive properties have enabled many novel applications, increasing the possibility of accidental nanotube inhalation by either consumers or factory workers. While MWCNT inhalation has been previously shown to cause inflammation and pulmonary fibrosis at high doses, the susceptibility of differentiating bronchial epithelia to MWCNT exposure remains unexplored. In this study, we investigate the effect of MWCNT exposure on cilia development in a differentiating air-liquid interface (ALI) model. Primary bronchial epithelial cells (BECs) were isolated from human donors via bronchoscopy and treated with non-cytotoxic doses of MWCNTs in submerged culture for 24 h. Cultures were then allowed to differentiate in ALI for 28 days in the absence of further MWCNT exposure. At 28 days, mucociliary differentiation endpoints were assessed, including whole-mount immunofluorescent staining, histological, immunohistochemical and ultrastructural analysis, gene expression, and cilia beating analysis. Results We found a reduction in the prevalence and beating of ciliated cells in MWCNT-treated cultures, which appeared to be caused by a disruption of cellular microtubules and cytoskeleton during ciliogenesis and basal body docking. Expression of gene markers of mucociliary differentiation, such as FOXJ1 and MUC5AC/B, were not affected by treatment. Colocalization of basal body marker CEP164 with γ-tubulin during days 1–3 of ciliogenesis, as well as abundance of basal bodies up to day 14, were attenuated by treatment with MWCNTs. Conclusions Our results suggest that a single exposure of bronchial cells to MWCNT during a vulnerable period before differentiation may impair their ability to develop into fully functional ciliated cells. Electronic supplementary material The online version of this article (10.1186/s12989-017-0225-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ryan J Snyder
- National Institutes of Health (NIH), National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, Durham, NC, 27709, USA.
| | - Salik Hussain
- National Institutes of Health (NIH), National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, Durham, NC, 27709, USA
| | - Charles J Tucker
- National Institutes of Health (NIH), National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, Durham, NC, 27709, USA
| | - Scott H Randell
- University of North Carolina Chapel Hill, Chapel Hill, NC, 27599-7248, USA
| | - Stavros Garantziotis
- National Institutes of Health (NIH), National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, Durham, NC, 27709, USA
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12
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Xia Y, Uysal Unalan I, Rubino M, Auras R. Carbon nanotube release from polymers into a food simulant. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 229:818-826. [PMID: 28779898 DOI: 10.1016/j.envpol.2017.06.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/15/2017] [Accepted: 06/19/2017] [Indexed: 06/07/2023]
Abstract
The release assessment of multi-walled carbon nanotubes (CNTs) was performed on two types of polymer-CNT nanocomposites: polypropylene (PP) and polyamide 6 (PA6) containing 3 wt% CNT. Nanocomposite films were prepared and then exposed to ethanol as a fatty-food simulant at 40 °C, and the amount of CNT release into ethanol was determined by ultraviolet-visible spectroscopy (UV-Vis) and graphite furnace atomic absorption spectrometry (GFAAS). The CNTs released into ethanol were visualized by transmission electron microscopy (TEM) and verified by Raman spectroscopy. UV-Vis analysis showed a very small amount of CNT release from the nanocomposite films into ethanol over 60 d: maximum CNT concentrations in ethanol were 1.3 mg/L for the PP-CNT film and 1.2 mg/L for the PA6-CNT film. GFAAS results indicated that the amount of CNTs released into ethanol after 12 d was over 20-fold higher than the results obtained by UV-Vis. Overestimation of CNT release by GFAAS suggested aggregation and poor dispersion of CNTs in the solvent. This assumption was verified by TEM images exhibiting the embedded CNTs in the polymer flakes, which could be poorly dispersed in the solvent. In general, CNT release from the nanocomposite films was considered a surface phenomenon, as indicated by detachment of CNT-containing polymer flakes from the film surface.
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Affiliation(s)
- Yining Xia
- School of Packaging, Michigan State University, East Lansing, MI 48824, USA; Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ilke Uysal Unalan
- School of Packaging, Michigan State University, East Lansing, MI 48824, USA; Department of Food Engineering, Faculty of Engineering, İzmir University of Economics, İzmir 35330, Turkey.
| | - Maria Rubino
- School of Packaging, Michigan State University, East Lansing, MI 48824, USA.
| | - Rafael Auras
- School of Packaging, Michigan State University, East Lansing, MI 48824, USA
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13
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Dong J, Ma Q. Myofibroblasts and lung fibrosis induced by carbon nanotube exposure. Part Fibre Toxicol 2016; 13:60. [PMID: 27814727 PMCID: PMC5097370 DOI: 10.1186/s12989-016-0172-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 10/25/2016] [Indexed: 01/07/2023] Open
Abstract
Carbon nanotubes (CNTs) are newly developed materials with unique properties and a range of industrial and commercial applications. A rapid expansion in the production of CNT materials may increase the risk of human exposure to CNTs. Studies in rodents have shown that certain forms of CNTs are potent fibrogenic inducers in the lungs to cause interstitial, bronchial, and pleural fibrosis characterized by the excessive deposition of collagen fibers and the scarring of involved tissues. The cellular and molecular basis underlying the fibrotic response to CNT exposure remains poorly understood. Myofibroblasts are a major type of effector cells in organ fibrosis that secrete copious amounts of extracellular matrix proteins and signaling molecules to drive fibrosis. Myofibroblasts also mediate the mechano-regulation of fibrotic matrix remodeling via contraction of their stress fibers. Recent studies reveal that exposure to CNTs induces the differentiation of myofibroblasts from fibroblasts in vitro and stimulates pulmonary accumulation and activation of myofibroblasts in vivo. Moreover, mechanistic analyses provide insights into the molecular underpinnings of myofibroblast differentiation and function induced by CNTs in the lungs. In view of the apparent fibrogenic activity of CNTs and the emerging role of myofibroblasts in the development of organ fibrosis, we discuss recent findings on CNT-induced lung fibrosis with emphasis on the role of myofibroblasts in the pathologic development of lung fibrosis. Particular attention is given to the formation and activation of myofibroblasts upon CNT exposure and the possible mechanisms by which CNTs regulate the function and dynamics of myofibroblasts in the lungs. It is evident that a fundamental understanding of the myofibroblast and its function and regulation in lung fibrosis will have a major influence on the future research on the pulmonary response to nano exposure, particle and fiber-induced pneumoconiosis, and other human lung fibrosing diseases.
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Affiliation(s)
- Jie Dong
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 1095 Willowdale Road, Morgantown, WV, USA
| | - Qiang Ma
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 1095 Willowdale Road, Morgantown, WV, USA.
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14
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Zhi L, Fu W, Wang X, Wang D. ACS-22, a protein homologous to mammalian fatty acid transport protein 4, is essential for the control of the toxicity and translocation of multi-walled carbon nanotubes in Caenorhabditis elegans. RSC Adv 2016. [DOI: 10.1039/c5ra23543j] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ACS-22 plays an essential role in regulating toxicity and translocation of MWCNTs.
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Affiliation(s)
- Lingtong Zhi
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Wei Fu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Xiong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
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15
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Abstract
Carbon nanotubes (CNT) have been developed into new materials with a variety of industrial and commercial applications. In contrast, the physicochemical properties of CNT at the nanoscale render them the potency to generate toxic effects. Indeed, the potential health impacts of CNT have drawn a great deal of attention in recent years, owing to their identified toxicological and pathological consequences including cytotoxicity, inflammation, fibrosis, genotoxicity, tumorigenesis, and immunotoxicity. Understanding the mechanisms by which CNT induce toxicity and pathology is thus urgently needed for accurate risk assessment of CNT exposure in humans, and for safe and responsible development and commercialization of nanotechnology. Here, we summarize and discuss recent advances in this area with a focus on the molecular interactions between CNT and mammalian systems, and the signaling pathways important for the development of CNT toxicity such as the NF-κB, NLRP3 inflammasome, TGF-β1, MAPK, and p53 signaling cascades. With the current mechanistic evidence summarized in this review, we expect to provide new insights into CNT toxicology at the molecular level and offer new clues to the prevention of health effects resulting from CNT exposure. Moreover, we disclose questions and issues that remain in this rapidly advancing field of nanotoxicology, which would facilitate ascertaining future research directions.
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Affiliation(s)
- Jie Dong
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown, WV , USA
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16
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Saito N, Haniu H, Usui Y, Aoki K, Hara K, Takanashi S, Shimizu M, Narita N, Okamoto M, Kobayashi S, Nomura H, Kato H, Nishimura N, Taruta S, Endo M. Safe clinical use of carbon nanotubes as innovative biomaterials. Chem Rev 2014; 114:6040-79. [PMID: 24720563 PMCID: PMC4059771 DOI: 10.1021/cr400341h] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Indexed: 02/06/2023]
Affiliation(s)
- Naoto Saito
- Institute
for Biomedical Sciences, Shinshu University, Asahi 3-1-1, Matsumoto 390-8621, Japan
| | - Hisao Haniu
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Yuki Usui
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
- Research Center for Exotic Nanocarbons, and Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Kaoru Aoki
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Kazuo Hara
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Seiji Takanashi
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Masayuki Shimizu
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Nobuyo Narita
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Masanori Okamoto
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Shinsuke Kobayashi
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Hiroki Nomura
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Hiroyuki Kato
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Naoyuki Nishimura
- R&D
Center, Nakashima Medical Co. Ltd., Haga 5322, Kita-ku, Okayama 701-1221, Japan
| | - Seiichi Taruta
- Research Center for Exotic Nanocarbons, and Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Morinobu Endo
- Research Center for Exotic Nanocarbons, and Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
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17
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Muthu MS, Leong DT, Mei L, Feng SS. Nanotheranostics - application and further development of nanomedicine strategies for advanced theranostics. Am J Cancer Res 2014; 4:660-77. [PMID: 24723986 PMCID: PMC3982135 DOI: 10.7150/thno.8698] [Citation(s) in RCA: 352] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/11/2014] [Indexed: 12/16/2022] Open
Abstract
Nanotheranostics is to apply and further develop nanomedicine strategies for advanced theranostics. This review summarizes the various nanocarriers developed so far in the literature for nanotheranostics, which include polymer conjugations, dendrimers, micelles, liposomes, metal and inorganic nanoparticles, carbon nanotubes, and nanoparticles of biodegradable polymers for sustained, controlled and targeted co-delivery of diagnostic and therapeutic agents for better theranostic effects with fewer side effects. The theranostic nanomedicine can achieve systemic circulation, evade host defenses and deliver the drug and diagnostic agents at the targeted site to diagnose and treat the disease at cellular and molecular level. The therapeutic and diagnostic agents are formulated in nanomedicine as a single theranostic platform, which can then be further conjugated to biological ligand for targeting. Nanotheranostics can also promote stimuli-responsive release, synergetic and combinatory therapy, siRNA co-delivery, multimodality therapies, oral delivery, delivery across the blood-brain barrier as well as escape from intracellular autophagy. The fruition of nanotheranostics will be able to provide personalized therapy with bright prognosis, which makes even the fatal diseases curable or at least treatable at the earliest stage.
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18
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Købler C, Saber AT, Jacobsen NR, Wallin H, Vogel U, Qvortrup K, Mølhave K. FIB-SEM imaging of carbon nanotubes in mouse lung tissue. Anal Bioanal Chem 2014; 406:3863-73. [PMID: 24448971 PMCID: PMC4039996 DOI: 10.1007/s00216-013-7566-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 12/03/2013] [Accepted: 12/09/2013] [Indexed: 11/29/2022]
Abstract
Ultrastructural characterisation is important for understanding carbon nanotube (CNT) toxicity and how the CNTs interact with cells and tissues. The standard method for this involves using transmission electron microscopy (TEM). However, in particular, the sample preparation, using a microtome to cut thin sample sections for TEM, can be challenging for investigation of regions with agglomerations of large and stiff CNTs because the CNTs cut with difficulty. As a consequence, the sectioning diamond knife may be damaged and the uncut CNTs are left protruding from the embedded block surface excluding them from TEM analysis. To provide an alternative to ultramicrotomy and subsequent TEM imaging, we studied focused ion beam scanning electron microscopy (FIB-SEM) of CNTs in the lungs of mice, and we evaluated the applicability of the method compared to TEM. FIB-SEM can provide serial section volume imaging not easily obtained with TEM, but it is time-consuming to locate CNTs in the tissue. We demonstrate that protruding CNTs after ultramicrotomy can be used to locate the region of interest, and we present FIB-SEM images of CNTs in lung tissue. FIB-SEM imaging was applied to lung tissue from mice which had been intratracheally instilled with two different multiwalled CNTs; one being short and thin, and the other longer and thicker. FIB-SEM was found to be most suitable for detection of the large CNTs (Ø ca. 70 nm), and to be well suited for studying CNT agglomerates in biological samples which is challenging using standard TEM techniques.
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Affiliation(s)
- Carsten Købler
- DTU Nanotech, Technical University of Denmark, Ørsteds Plads 345E, 2800, Kgs. Lyngby, Denmark
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19
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High stability silver nanoparticles–graphene/poly(ionic liquid)-based chemoresistive sensors for volatile organic compounds’ detection. Anal Bioanal Chem 2014; 406:3995-4004. [DOI: 10.1007/s00216-013-7557-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/28/2013] [Accepted: 12/05/2013] [Indexed: 01/25/2023]
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20
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Muthu MS, Abdulla A, Pandey BL. Major toxicities of carbon nanotubes induced by reactive oxygen species: should we worry about the effects on the lungs, liver and normal cells? Nanomedicine (Lond) 2013; 8:863-6. [PMID: 23730693 DOI: 10.2217/nnm.13.60] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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21
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Du J, Wang S, You H, Zhao X. Understanding the toxicity of carbon nanotubes in the environment is crucial to the control of nanomaterials in producing and processing and the assessment of health risk for human: a review. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 36:451-462. [PMID: 23770455 DOI: 10.1016/j.etap.2013.05.007] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 05/10/2013] [Accepted: 05/17/2013] [Indexed: 05/23/2023]
Abstract
With the development and application of carbon nanotubes (CNTs), the potential hazards of CNTs to biological systems and the environment are getting more and more attention. This review evaluated the effects of physicochemical properties of CNTs on toxicity and summarized the advances on the mechanism of CNTs toxicity. We also proposed the possible hazards associated with CNTs and harmful effects resulting from exposure of aquatic animals, bacteria and higher plants to CNTs in vitro and in vivo. The current knowledge and gaps on CNTs were outlined as a potential problem for the environment and human health. The current research gaps on CNTs toxicity were identified and the further studying focus was proposed, too. This essay concluded with a set of recommendations for the advancement of understanding of the role of CNTs and future challenges in environmental and ecotoxicological research.
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Affiliation(s)
- Jia Du
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Shutao Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Hong You
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Xuesong Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
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22
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Nouara A, Wu Q, Li Y, Tang M, Wang H, Zhao Y, Wang D. Carboxylic acid functionalization prevents the translocation of multi-walled carbon nanotubes at predicted environmentally relevant concentrations into targeted organs of nematode Caenorhabditis elegans. NANOSCALE 2013; 5:6088-6096. [PMID: 23722228 DOI: 10.1039/c3nr00847a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Carboxyl (-COOH) surface modified multi-walled carbon nanotubes (MWCNTs-COOH) can be used for targeted delivery of drugs and imaging. However, whether MWCNTs-COOH at environmentally relevant concentrations exert certain toxic effects on multicellular organisms and the underlying mechanisms are still largely unclear. In the present study, we applied the nematode Caenorhabditis elegans to evaluate the properties of MWCNTs-COOH at environmentally relevant concentrations by comparing the effects of MWCNTs and MWCNTs-COOH exposure on C. elegans from L1-larvae to adult at concentrations of 0.001-1000 μg L(-1). Exposure to MWCNTs could potentially damage the intestine (primary targeted organ) at concentrations greater than 0.1 μg L(-1) and functions of neurons and reproductive organ (secondary targeted organs) at concentrations greater than 0.001 μg L(-1). Carboxyl modification prevented the toxicity of MWCNTs on the primary and the secondary targeted organs at concentrations less than 100 μg L(-1), suggesting that carboxyl modification can effectively prevent the adverse effects of MWCNTs at environmentally relevant concentrations. After exposure, MWCNTs-COOH (1 mg L(-1)) were translocated into the spermatheca and embryos in the body through the primary targeted organs. However, MWCNTs-COOH (10 μg L(-1)) were not observed in spermatheca and embryos in the body of nematodes. Moreover, relatively high concentrations of MWCNTs-COOH exposed nematodes might have a hyper-permeable intestinal barrier, whereas MWCNTs-COOH at environmentally relevant concentrations effectively sustained the normally permeable state for the intestinal barrier. Therefore, we elucidated the cellular basis of carboxyl modification to prevent toxicity of MWCNTs at environmentally relevant concentrations. Our data highlights the key role of biological barriers in the primary targeted organs to block toxicity formation from MWCNTs, which will be useful for the design of effective prevention strategies against MWCNTs toxicity.
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Affiliation(s)
- Abdelli Nouara
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
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23
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Riding MJ, Trevisan J, Hirschmugl CJ, Jones KC, Semple KT, Martin FL. Mechanistic insights into nanotoxicity determined by synchrotron radiation-based Fourier-transform infrared imaging and multivariate analysis. ENVIRONMENT INTERNATIONAL 2012; 50:56-65. [PMID: 23085685 DOI: 10.1016/j.envint.2012.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 09/20/2012] [Accepted: 09/20/2012] [Indexed: 06/01/2023]
Abstract
Our ability to identify the mechanisms by which carbon-based nanomaterials (CBNs) exert toxicity in cells is constrained by the lack of standardized methodologies to assay endpoint effects. Herein we describe a method of mechanistically identifying the effects of various CBN types in both prokaryotic and eukaryotic cells using multi-beam synchrotron radiation-based Fourier-transform infrared imaging (SR-FTIRI) at diffraction-limited resolution. This technique overcomes many of the inherent difficulties of assaying nanotoxicity and demonstrates exceptional sensitivity in identifying the effects of CBNs in cells at environmentally-relevant concentrations. We identify key mechanisms of nanotoxicity as the alteration of Amide and lipid biomolecules, but propose more specific bioactivity of CBNs occurs as a result of specific interactions between CBN structural conformation and cellular characteristics.
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Affiliation(s)
- Matthew J Riding
- Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, UK
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Lee CM, Jeong HJ, Yun KN, Kim DW, Sohn MH, Lee JK, Jeong J, Lim ST. Optical imaging to trace near infrared fluorescent zinc oxide nanoparticles following oral exposure. Int J Nanomedicine 2012; 7:3203-9. [PMID: 22811605 PMCID: PMC3394462 DOI: 10.2147/ijn.s32828] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Understanding how nanomaterials are distributed in the body after exposure is important for assessing whether they are safe. In this study, we investigated the behavior and accumulation of nanoscaled and submicron-scaled zinc oxide (ZnO) particles in the body using optical imaging following oral exposure. Methods To trace these nanoparticles in the body, ZnO nanoparticles were conjugated with a monoreactive hydroxysuccinimide ester of Cy5.5 (Cy5.5-NHS), and the conjugation-stabilizing effect of Cy5.5 on the nanoparticles was evaluated in simulated gastric fluid (pH 1.2) for 7 hours. To compare the distribution of Cy5.5-NHS and Cy5.5-conjugated ZnO nanoparticles, Cy5.5-NHS 0.5 mg/kg and Cy5.5-conjugated ZnO nanoparticles 250 mg/kg were administered orally to healthy rats. We collected blood from the rats at predesignated time points for 7 hours after administration, and optical imaging studies were performed at 1, 2, 3, 5, and 7 hours after dosing. To investigate the extent of nanoparticle accumulation in the organs and tissues, the mice were sacrificed at 23 hours after administration, and the organs were removed and imaged. Results Cy5.5-conjugated ZnO nanoparticles were stable in simulated gastric fluid for 7 hours. The signal intensity of Cy5.5-NHS in blood was highest 3 hours after oral administration, and Cy5.5-conjugated ZnO nanoparticles showed the highest signal intensity in blood 5–7 hours after administration. In vivo optical images indicated that Cy5.5-NHS showed optical signals in the lung, liver, and gastrointestinal tract after oral administration, whereas Cy5.5-conjugated ZnO nanoparticles were seen only in the gastrointestinal tract. Seven hours following administration, biodistribution studies demonstrated that Cy5.5-NHS accumulated in the lung and liver, and Cy5.5-conjugated ZnO nanoparticles resulted in a strong signal in the kidney and liver. Different-sized ZnO nanoparticles showed dissimilar patterns of biodistribution in ex vivo optical images. Conclusion ZnO nanoparticles are absorbed into the tissues following oral exposure and their behavior can be monitored and evaluated using optical imaging.
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Affiliation(s)
- Chang-Moon Lee
- Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-Do, Republic of Korea
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25
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Lee SB. Nanotoxicology: toxicity and biological effects of nanoparticles for new evaluation standards. Nanomedicine (Lond) 2011; 6:759-61. [DOI: 10.2217/nnm.11.97] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Sang Bok Lee
- Department of Chemistry & Biochemistry, University of Maryland, College Park, MD 20742, USA and Graduate School of Nanoscience & Technology (WCU), Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
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