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Živančević K, Baralić K, Vukelić D, Marić Đ, Kotur-Stevuljević J, Ivanišević J, Savić M, Batinić B, Janković R, Djordjevic AB, Miljaković EA, Ćurčić M, Bulat Z, Antonijević B, Đukić-Ćosić D. Neurotoxic effects of low dose ranges of environmental metal mixture in a rat model: The benchmark approach. ENVIRONMENTAL RESEARCH 2024; 252:118680. [PMID: 38561120 DOI: 10.1016/j.envres.2024.118680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/02/2024] [Accepted: 03/10/2024] [Indexed: 04/04/2024]
Abstract
Metals exert detrimental effects on various systems within the body, including the nervous system. Nevertheless, the dose-response relationship concerning the administration of low doses of metal mixtures remains inadequately explored. The assessment of neurotoxic effects of lead, cadmium, mercury, and arsenic mixture (MIX) administered at low dose ranges, was conducted using an in vivo approach. A subacute study was conducted on a rat model consisting of a control and five treatment groups subjected to oral exposure with gradually increasing doses (from MIX 1 to MIX 5). The results indicated that behavioural patterns in an already developed nervous system displayed a reduced susceptibility to the metal mixture exposure with tendency of higher doses to alter short term memory. However, the vulnerability of the mature brain to even minimal amounts of the investigated metal mixture was evident, particularly in the context of oxidative stress. Moreover, the study highlights superoxide dismutase's sensitivity as an early-stage neurotoxicity marker, as indicated by dose-dependent induction of oxidative stress in the brain revealed through Benchmark analysis. The narrowest Benchmark Dose Interval (BMDI) for superoxide dismutase (SOD) activity (1e-06 - 3.18e-05 mg As/kg b.w./day) indicates that arsenic may dictate the alterations in SOD activity when co-exposed with the other examined metals. The predicted Benchmark doses for oxidative stress parameters were very low, supporting "no-threshold" concept. Histopathological alterations were most severe in the groups treated with higher doses of metal mixture. Similarly, the brain acetylcholinesterase (AChE) activity demonstrated a dose-dependent decrease significant in higher doses, while BMDI suggested Cd as the main contributor in the examined metal mixture. These findings imply varying susceptibility of neurotoxic endpoints to different doses of environmentally relevant metal mixtures, advocating for risk assessment and regulatory measures to address metal pollution and enhance remediation strategies.
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Affiliation(s)
- Katarina Živančević
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia; University of Belgrade - Faculty of Biology, Institute of Physiology and Biochemistry "Ivan Djaja", Department of General Physiology and Biophysics, Center for Laser Microscopy, Studentski trg 16, 11158, Belgrade, Serbia.
| | - Katarina Baralić
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Dragana Vukelić
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Đurđica Marić
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Jelena Kotur-Stevuljević
- University of Belgrade, Faculty of Pharmacy, Department of Medical Biochemistry, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Jasmina Ivanišević
- University of Belgrade, Faculty of Pharmacy, Department of Medical Biochemistry, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Miroslav Savić
- University of Belgrade, Faculty of Pharmacy, Department of Pharmacology, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Bojan Batinić
- University of Belgrade, Faculty of Pharmacy, Department of Physiology, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Radmila Janković
- University of Belgrade, Faculty of Medicine, Institute of Pathology, dr Subotića 1, 11000, Belgrade, Serbia
| | - Aleksandra Buha Djordjevic
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Evica Antonijević Miljaković
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Marijana Ćurčić
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Zorica Bulat
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Biljana Antonijević
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Danijela Đukić-Ćosić
- Department of Toxicology "Akademik Danilo Soldatović", Toxicological Risk Assessment Center, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
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Musolino E, Pagiatakis C, Serio S, Borgese M, Gamberoni F, Gornati R, Bernardini G, Papait R. The Yin and Yang of epigenetics in the field of nanoparticles. NANOSCALE ADVANCES 2022; 4:979-994. [PMID: 36131763 PMCID: PMC9419747 DOI: 10.1039/d1na00682g] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/30/2021] [Indexed: 05/02/2023]
Abstract
Nanoparticles (NPs) have become a very exciting research avenue, with multitudinous applications in various fields, including the biomedical one, whereby they have been gaining considerable interest as drug carriers able to increase bioavailability, therapeutic efficiency and specificity of drugs. Epigenetics, a complex network of molecular mechanisms involved in gene expression regulation, play a key role in mediating the effect of environmental factors on organisms and in the etiology of several diseases (e.g., cancers, neurological disorders and cardiovascular diseases). For many of these diseases, epigenetic therapies have been proposed, whose application is however limited by the toxicity of epigenetic drugs. In this review, we will analyze two aspects of epigenetics in the field of NPs: the first is the role that epigenetics play in mediating nanotoxicity, and the second is the possibility of using NPs for delivery of "epi-drugs" to overcome their limitations. We aim to stimulate discussion among specialists, specifically on the potential contribution of epigenetics to the field of NPs, and to inspire newcomers to this exciting technology.
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Affiliation(s)
- Elettra Musolino
- Department of and Life Sciences, Insubria University Via Dunant 3 21100 Varese Italy
| | - Christina Pagiatakis
- Department of Cardiovascular Medicine, Humanitas Research Hospital Rozzano MI Italy
| | - Simone Serio
- Department of Cardiovascular Medicine, Humanitas Research Hospital Rozzano MI Italy
- Department of Biomedical Sciences, Humanitas University Via Rita Levi Montalcini 4 20090 Pieve Emanuele MI Italy
| | - Marina Borgese
- Department of and Life Sciences, Insubria University Via Dunant 3 21100 Varese Italy
| | - Federica Gamberoni
- Department of and Life Sciences, Insubria University Via Dunant 3 21100 Varese Italy
| | - Rosalba Gornati
- Department of and Life Sciences, Insubria University Via Dunant 3 21100 Varese Italy
| | - Giovanni Bernardini
- Department of and Life Sciences, Insubria University Via Dunant 3 21100 Varese Italy
| | - Roberto Papait
- Department of and Life Sciences, Insubria University Via Dunant 3 21100 Varese Italy
- Department of Cardiovascular Medicine, Humanitas Research Hospital Rozzano MI Italy
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3
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González-Palomo AK, Saldaña-Villanueva K, Cortés-García JD, Fernández-Macias JC, Méndez-Rodríguez KB, Pérez Maldonado IN. Effect of silver nanoparticles (AgNPs) exposure on microRNA expression and global DNA methylation in endothelial cells EA.hy926. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 81:103543. [PMID: 33166681 DOI: 10.1016/j.etap.2020.103543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to determine the effect of AgNPs on the epigenome of endothelial cells EA.hy926, including the levels of expression of microRNAs (miRNAs) and global DNA methylation patterns. In addition, evaluation of the expression of inflammatory genes and the levels of VCAM-1 protein (miRNA-126 target) was performed. The expression levels of analyzed miRNAs (microRNAs-126, 155 and 146) were reduced significantly and there were not observed changes in inflammatory gene expression. Regarding the levels of protein vascular cell adhesion molecule 1 (VCAM-1), they increase significantly to 0.5 μM AgNPs at 24 h of exposure. As far as DNA methylation is concerned, we found that AgNPs induce a state of global hyper-methylation. In conclusion, it was demonstrated that direct contact between AgNPs and endothelial cells resulted in the dysregulation of highly enriched and vastly functional miRNAs and DNA hypermethylation, that may have multiple effects on endothelium function and integrity.
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Affiliation(s)
- A K González-Palomo
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México.
| | - K Saldaña-Villanueva
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - J D Cortés-García
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - J C Fernández-Macias
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - K B Méndez-Rodríguez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - I N Pérez Maldonado
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
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Ijomone OM, Ijomone OK, Iroegbu JD, Ifenatuoha CW, Olung NF, Aschner M. Epigenetic influence of environmentally neurotoxic metals. Neurotoxicology 2020; 81:51-65. [PMID: 32882300 PMCID: PMC7708394 DOI: 10.1016/j.neuro.2020.08.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/25/2020] [Accepted: 08/25/2020] [Indexed: 02/08/2023]
Abstract
Continuous globalization and industrialization have ensured metals are an increasing aspect of daily life. Their usefulness in manufacturing has made them vital to national commerce, security and global economy. However, excess exposure to metals, particularly as a result of environmental contamination or occupational exposures, has been detrimental to overall health. Excess exposure to several metals is considered environmental risk in the aetiology of several neurological and neurodegenerative diseases. Metal-induced neurotoxicity has been a major health concern globally with intensive research to unravel the mechanisms associated with it. Recently, greater focus has been directed at epigenetics to better characterize the underlying mechanisms of metal-induced neurotoxicity. Epigenetic changes are those modifications on the DNA that can turn genes on or off without altering the DNA sequence. This review discusses how epigenetic changes such as DNA methylation, post translational histone modification and noncoding RNA-mediated gene silencing mediate the neurotoxic effects of several metals, focusing on manganese, arsenic, nickel, cadmium, lead, and mercury.
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Affiliation(s)
- Omamuyovwi M Ijomone
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria.
| | - Olayemi K Ijomone
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria; Department of Anatomy, University of Medical Sciences, Ondo, Nigeria
| | - Joy D Iroegbu
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Chibuzor W Ifenatuoha
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Nzube F Olung
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Michael Aschner
- Departments of Molecular Pharmacology and Neurosciences, Albert Einstein College of Medicine, NY, USA.
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5
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Zhang W, Liu S, Han D, He Z. Engineered nanoparticle-induced epigenetic changes: An important consideration in nanomedicine. Acta Biomater 2020; 117:93-107. [PMID: 32980543 DOI: 10.1016/j.actbio.2020.09.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 12/27/2022]
Abstract
Engineered nanoparticles (ENPs) are now being applied across a range of disciplines, and as a result numerous studies have now assessed ENP-related bioeffects. Among them, ENP-induced epigenetic changes including DNA methylation, histone modifications, and miRNA-mediated regulation of gene expression have recently attracted attention. In this review, we describe the diversity of ENP-induced epigenetic changes, focusing on their interplay with related functional biological events, especially oxidative stress, MAPK pathway activation, and inflammation. In doing so, we highlight the underlying mechanisms and biological effects of ENP-induced epigenetic changes. We also summarize how high-throughput technologies have helped to uncover ENP-induced epigenetic changes. Finally, we discuss future perspectives and the challenges related to ENP-induced epigenetic changes that still need to be addressed.
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6
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Paesano L, Marmiroli M, Bianchi MG, White JC, Bussolati O, Zappettini A, Villani M, Marmiroli N. Differences in toxicity, mitochondrial function and miRNome in human cells exposed in vitro to Cd as CdS quantum dots or ionic Cd. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122430. [PMID: 32155524 DOI: 10.1016/j.jhazmat.2020.122430] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
Cadmium is toxic to humans, although Cd-based quantum dots exerts less toxicity. Human hepatocellular carcinoma cells (HepG2) and macrophages (THP-1) were exposed to ionic Cd, Cd(II), and cadmium sulfide quantum dots (CdS QDs), and cell viability, cell integrity, Cd accumulation, mitochondrial function and miRNome profile were evaluated. Cell-type and Cd form-specific responses were found: CdS QDs affected cell viability more in HepG2 than in THP-1; respective IC20 values were ∼3 and ∼50 μg ml-1. In both cell types, Cd(II) exerted greater effects on viability. Mitochondrial membrane function in HepG2 cells was reduced 70 % with 40 μg ml-1 CdS QDs but was totally inhibited by Cd(II) at corresponding amounts. In THP-1 cells, CdS QDs has less effect on mitochondrial function; 50 μg ml-1 CdS QDs or equivalent Cd(II) caused 30 % reduction or total inhibition, respectively. The different in vitro effects of CdS QDs were unrelated to Cd uptake, which was greater in THP-1 cells. For both cell types, changes in the expression of miRNAs (miR-222, miR-181a, miR-142-3p, miR-15) were found with CdS QDs, which may be used as biomarkers of hazard nanomaterial exposure. The cell-specific miRNome profiles were indicative of a more conservative autophagic response in THP-1 and as apoptosis as in HepG2.
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Affiliation(s)
- Laura Paesano
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Marta Marmiroli
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Massimiliano G Bianchi
- University of Parma, Department of Medicine and Surgery, Laboratory of General Pathology, Via Volturno 39, 43125 Parma, Italy
| | - Jason C White
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station (CAES), New Haven, CT 06504, United States
| | - Ovidio Bussolati
- University of Parma, Department of Medicine and Surgery, Laboratory of General Pathology, Via Volturno 39, 43125 Parma, Italy
| | - Andrea Zappettini
- Institute of Materials for Electronics and Magnetism (IMEM-CNR), Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Marco Villani
- Institute of Materials for Electronics and Magnetism (IMEM-CNR), Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Nelson Marmiroli
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze 11/A, 43124 Parma, Italy; National Interuniversity Consortium for Environmental Sciences (CINSA), Parco Area delle Scienze 93/A, 43124 Parma, Italy.
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7
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Bicho RC, Roelofs D, Mariën J, Scott-Fordsmand JJ, Amorim MJB. Epigenetic effects of (nano)materials in environmental species - Cu case study in Enchytraeus crypticus. ENVIRONMENT INTERNATIONAL 2020; 136:105447. [PMID: 31924578 DOI: 10.1016/j.envint.2019.105447] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/17/2019] [Accepted: 12/24/2019] [Indexed: 06/10/2023]
Abstract
Chemical stressors can induce epigenomic changes, i.e., changes that are transferred to the next generation, even when the stressor is removed. Literature on chemical induced epigenetic effects in environmental species is scarce. We here provide the first results on epigenetic effects caused by nanomaterials with an environmental OECD standard soil model species Enchytraeus crypticus species. We assessed the epigenetic potential in terms of global DNA methylation, gene-specific methylation via bisulfite sequencing and MS-HRM (Methylation Sensitive - High Resolution Melting), and gene expression qPCR for genes involved in DNA methylation, histone modifications, non-coding RNA and stress response mechanisms). We have exposed E. crypticus in a multigenerational (MG) test design to Cu (copper oxide nanomaterials (CuO NMs) and copper salt (CuCl2)). To link possible epigenetic effects to population changes, we used exposure concentrations (ECx) that caused a 10% and 50% reduction in the reproductive output (10% and 50% are the standards for regulatory Risk Assessment), the organisms were exposed for five consecutive generations (F1-F5) plus two generations after transferring to clean media (F5-F7), 7 generations in a total of 224 days. Results showed that MG exposure to Cu increased global DNA methylation and corresponded with phenotypic effects (reproduction). Gene expression analyses showed changes in the epigenetic, stress and detoxification gene targets, depending on the generation and Cu form, also occurring in post-exposure generations, hence indicative of transgenerational effects. There were in general clear differences between organisms exposed to different Cu-forms, hence indicate nanoparticulate-specific effects.
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Affiliation(s)
- Rita C Bicho
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Dick Roelofs
- Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, the Netherlands
| | - Janine Mariën
- Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, the Netherlands
| | - Janeck J Scott-Fordsmand
- Department of Bioscience, Aarhus University, Vejlsovej 25, PO BOX 314, DK-8600 Silkeborg, Denmark
| | - Mónica J B Amorim
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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Yu J, Loh XJ, Luo Y, Ge S, Fan X, Ruan J. Insights into the epigenetic effects of nanomaterials on cells. Biomater Sci 2019; 8:763-775. [PMID: 31808476 DOI: 10.1039/c9bm01526d] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
With the development of nanotechnology, nanomaterials are increasingly being applied in health fields, such as biomedicine, pharmaceuticals, and cosmetics. Concerns have therefore been raised over their toxicity and numerous studies have been carried out to assess their safety. Most studies on the toxicity and therapeutic mechanisms of nanomaterials have revealed the effects of nanomaterials on cells at the transcriptome and proteome levels. However, epigenetic modifications, for example DNA methylation, histone modification, and noncoding RNA expression induced by nanomaterials, which play an important role in the regulation of gene expression, have not received sufficient attention. In this review, we therefore state the importance of studying epigenetic effects induced by nanomaterials; then we review the progress of nanomaterial epigenetic research in the assessment of toxicity, therapeutic, and other mechanisms. We also clarify the possible study directions for future nanomaterial epigenetic research. Finally, we discuss the future development and challenges of nanomaterial epigenetics that must still be addressed. We hope to understand the potential toxicity of nanomaterials and clearly understand the therapeutic mechanism through a thorough investigation of nanomaterial epigenetics.
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Affiliation(s)
- Jie Yu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China. and Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Yifei Luo
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Shengfang Ge
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China. and Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China. and Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Jing Ruan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China. and Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
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9
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Gedda MR, Babele PK, Zahra K, Madhukar P. Epigenetic Aspects of Engineered Nanomaterials: Is the Collateral Damage Inevitable? Front Bioeng Biotechnol 2019; 7:228. [PMID: 31616663 PMCID: PMC6763616 DOI: 10.3389/fbioe.2019.00228] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 09/05/2019] [Indexed: 12/31/2022] Open
Abstract
The extensive application of engineered nanomaterial (ENM) in various fields increases the possibilities of human exposure, thus imposing a huge risk of nanotoxicity. Hence, there is an urgent need for a detailed risk assessment of these ENMs in response to their toxicological profiling, predominantly in biomedical and biosensor settings. Numerous "toxico-omics" studies have been conducted on ENMs, however, a specific "risk assessment paradigm" dealing with the epigenetic modulations in humans owing to the exposure of these modern-day toxicants has not been defined yet. This review aims to address the critical aspects that are currently preventing the formation of a suitable risk assessment approach for/against ENM exposure and pointing out those researches, which may help to develop and implement effective guidance for nano-risk assessment. Literature relating to physicochemical characterization and toxicological behavior of ENMs were analyzed, and exposure assessment strategies were explored in order to extrapolate opportunities, challenges, and criticisms in the establishment of a baseline for the risk assessment paradigm of ENMs exposure. Various challenges, such as uncertainty in the relation of the physicochemical properties and ENM toxicity, the complexity of the dose-response relationships resulting in difficulty in its extrapolation and measurement of ENM exposure levels emerged as issues in the establishment of a traditional risk assessment. Such an appropriate risk assessment approach will provide adequate estimates of ENM exposure risks and will serve as a guideline for appropriate risk communication and management strategies aiming for the protection and the safety of humans.
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Affiliation(s)
- Mallikarjuna Rao Gedda
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Piyoosh Kumar Babele
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, United States
| | - Kulsoom Zahra
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Prasoon Madhukar
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
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10
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Hu M, Jovanović B, Palić D. In silico prediction of MicroRNA role in regulation of Zebrafish (Danio rerio) responses to nanoparticle exposure. Toxicol In Vitro 2019; 60:187-202. [PMID: 31132477 DOI: 10.1016/j.tiv.2019.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 03/05/2019] [Accepted: 05/19/2019] [Indexed: 12/13/2022]
Abstract
The release of nanoparticles to the environment can affect health of the exposed organisms. MicroRNAs have been suggested as potential toxicology biomarkers, however the information about use of microRNA in aquatic organisms exposed to nanoparticles (NP) is limited. In silico analysis from publicly available gene expression data was performed. Data selection for the analysis was based on reported biological and pathological outcomes of NP induced toxicity in zebrafish. After identifying relevant genes, we constructed six miRNA-mRNA regulatory networks involved in nanoparticle induced toxicological responses in zebrafish. Based on our prediction and selection criteria we selected six miRNAs that overlapped in constructed networks with remarkable prediction score, and were validated by previous mammalian and zebrafish microRNA profiling studies: dre-miR-124, -144, -148, -155, -19a, -223. The results of this in silico analysis indicate that several highly conserved miRNAs likely have a regulatory role of organismal responses to nanoparticles, and can possibly be used as biomarkers of nanotoxicity in studies using zebrafish as model organism One health approaches.
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Affiliation(s)
- Moyan Hu
- Chair for Fish Diseases and Fisheries Biology, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Munich, Germany
| | - Boris Jovanović
- Department of Natural Resources Ecology and Management, Iowa State University, Ames, IA, USA
| | - Dušan Palić
- Chair for Fish Diseases and Fisheries Biology, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Munich, Germany.
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Patil YM, Rajpathak SN, Deobagkar DD. Characterization and DNA methylation modulatory activity of gold nanoparticles synthesized by Pseudoalteromonas strain. J Biosci 2019. [DOI: 10.1007/s12038-018-9842-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Schulte P, Leso V, Niang M, Iavicoli I. Biological monitoring of workers exposed to engineered nanomaterials. Toxicol Lett 2018; 298:112-124. [PMID: 29920308 PMCID: PMC6239923 DOI: 10.1016/j.toxlet.2018.06.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/29/2018] [Accepted: 06/08/2018] [Indexed: 12/27/2022]
Abstract
As the number of nanomaterial workers increase there is need to consider whether biomonitoring of exposure should be used as a routine risk management tool. Currently, no biomonitoring of nanomaterials is mandated by authoritative or regulatory agencies. However, there is a growing knowledge base to support such biomonitoring, but further research is needed as are investigations of priorities for biomonitoring. That research should be focused on validation of biomarkers of exposure and effect. Some biomarkers of effect are generally nonspecific. These biomarkers need further interpretation before they should be used. Overall biomonitoring of nanomaterial workers may be important to supplement risk assessment and risk management efforts.
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Affiliation(s)
- P Schulte
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 1090 Tusculum Avenue, MS C-14, Cincinnati, OH 45226, USA.
| | - V Leso
- Department of Public Health, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
| | - M Niang
- University of Cincinnati, Cincinnati, OH, USA
| | - I Iavicoli
- Department of Public Health, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
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13
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Zhang L, Hu W, Wu Y, Wei P, Dong L, Hao Z, Fan S, Song Y, Lu Y, Liang C, Wen L. Microwave-Assisted Facile Synthesis of Eu(OH) 3 Nanoclusters with Pro-Proliferative Activity Mediated by miR-199a-3p. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31044-31053. [PMID: 30148600 DOI: 10.1021/acsami.8b10543] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
As a pharmaceutical excipient, dextran serves as an efficient ligand for stabilizing some clinically available inorganic nanomaterials such as iron oxide nanocrystals. Herein, dextran-capped nanosized europium(III) hydroxides [Eu(OH)3] nanoclusters (NCs) composed of 5 nm Eu(OH)3 nanoparticles have been large-scale synthesized via a microwave-accelerated hydrothermal reaction. The as-synthesized Eu(OH)3 NCs exhibited excellent physiological stability and biocompatibility both in vitro and in vivo and possessed considerable pro-proliferative activities in human umbilical vein endothelial cells (HUVECs). To investigate the epigenetic modulation of Eu(OH)3 NCs-elicited proliferation, the newly developed high-throughput next generation sequencing technology was employed herein. As a result, we have screened 371 dysregulated miRNAs in Eu(OH)3 NCs-treated HUVECs and obtained 26 potentially functional miRNAs in promoting cell proliferation. Furthermore, upregulated miR-199a-3p was predicted, validated, and eventually confirmed to be a crucial modulator in the pro-proliferative activity of Eu(OH)3 NCs by targeting zinc fingers and homeoboxes protein 1 (ZHX1). Importantly, these findings provide potential therapeutic strategy for ischemic heart/limb diseases and tissue regeneration by combination of nanomedicine and gene therapy with Eu(OH)3 NCs and miR-199a-3p-ZHX1 axis modulation.
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Affiliation(s)
- Li Zhang
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Wanglai Hu
- Department of Immunology , Anhui Medical University , Hefei , Anhui 230032 , People's Republic of China
| | - Yadong Wu
- School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Pengfei Wei
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
| | - Liang Dong
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
| | - Zongyao Hao
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Song Fan
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Yonghong Song
- School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Yang Lu
- School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Chaozhao Liang
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Longping Wen
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
- School of Medicine , South China University of Technology , Guangzhou 510006 , People's Republic of China
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14
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Buchtelova H, Strmiska V, Skubalova Z, Dostalova S, Michalek P, Krizkova S, Hynek D, Kalina L, Richtera L, Moulick A, Adam V, Heger Z. Improving cytocompatibility of CdTe quantum dots by Schiff-base-coordinated lanthanides surface doping. J Nanobiotechnology 2018; 16:43. [PMID: 29673366 PMCID: PMC5907456 DOI: 10.1186/s12951-018-0369-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/13/2018] [Indexed: 12/11/2022] Open
Abstract
Background Suitable fluorophores are the core of fluorescence imaging. Among the most exciting, yet controversial, labels are quantum dots (QDs) with their unique optical and chemical properties, but also considerable toxicity. This hinders QDs applicability in living systems. Surface chemistry has a profound impact on biological behavior of QDs. This study describes a two-step synthesis of QDs formed by CdTe core doped with Schiff base ligand for lanthanides [Ln (Yb3+, Tb3+ and Gd3+)] as novel cytocompatible fluorophores. Results Microwave-assisted synthesis resulted in water-soluble nanocrystals with high colloidal and fluorescence stability with quantum yields of 40.9–58.0%. Despite induction of endocytosis and cytoplasm accumulation of Yb- and TbQDs, surface doping resulted in significant enhancement in cytocompatibility when compared to the un-doped CdTe QDs. Furthermore, only negligible antimigratory properties without triggering formation of reactive oxygen species were found, particularly for TbQDs. Ln-doped QDs did not cause observable hemolysis, adsorbed only a low degree of plasma proteins onto their surface and did not possess significant genotoxicity. To validate the applicability of Ln-doped QDs for in vitro visualization of receptor status of living cells, we performed a site-directed conjugation of antibodies towards immuno-labeling of clinically relevant target—human norepinephrine transporter (hNET), over-expressed in neuroendocrine tumors like neuroblastoma. Immuno-performance of modified TbQDs was successfully tested in distinct types of cells varying in hNET expression and also in neuroblastoma cells with hNET expression up-regulated by vorinostat. Conclusion For the first time we show that Ln-doping of CdTe QDs can significantly alleviate their cytotoxic effects. The obtained results imply great potential of Ln-doped QDs as cytocompatible and stable fluorophores for various bio-labeling applications.
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Affiliation(s)
- Hana Buchtelova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Vladislav Strmiska
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Zuzana Skubalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Simona Dostalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Petr Michalek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Sona Krizkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - David Hynek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Lukas Kalina
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic. .,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic.
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15
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Sui J, Fu Y, Zhang Y, Ma S, Yin L, Pu Y, Liang G. Molecular mechanism for miR-350 in regulating of titanium dioxide nanoparticles in macrophage RAW264.7 cells. Chem Biol Interact 2017; 280:77-85. [PMID: 29247641 DOI: 10.1016/j.cbi.2017.12.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 11/27/2017] [Accepted: 12/12/2017] [Indexed: 01/08/2023]
Abstract
This study investigated the role of microRNA(miRNA) in regulating the cytotoxicity of TiO2 nanoparticles (nano-TiO2) to RAW264.7 cells. RAW264.7 cells were treated with 0 and 100 μg/ml nano-TiO2 for 24 h (for miRNA analysis). The differentially expressed miRNAs were detected using Illumina HiSeq™ 2000 sequencing. Through the bio-informatics analysis, miR-350 was found to play an important role in multiple signaling pathways, including MAPK signaling pathway, NF-kappa B signaling pathway and Apoptosis. To characterize the miR-350 function, miR-350 mimic was transfected into RAW264.7 cells for 24 h. MTT and Flow Cytometry were performed to detect cell proliferation, apoptosis and cell cycle (repetition), respectively. QRT-PCR, Western Blot methods and Luciferase assays were applied to detect expression of putative target gene PIK3R3. The results showed that miRNA profiles were differentially dysregulated. The apoptosis rate of miR-350 mimic group was significantly higher than negative control group (p < .05). Cell proliferation and cell cycle had no significant differences between treatment and negative control group. Compared with negative control, the level of protein of PIK3R3 was significantly decreased (p < .05), and the expression of 3'UTR constructs of PIK3R3 was significantly decreased (p < .05) in miR-350 mimic group. The expression of miRNAs was changed after exposed to nano-TiO2, and biological function and target gene results showed miR-350 may promote RAW264.7 cell apoptosis through the negative regulation of PIK3R3 gene. Our results could provide a basis for further understanding of toxicity and possible mechanisms of nano-TiO2 exposure.
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Affiliation(s)
- Jing Sui
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yanyun Fu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yanqiu Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Shumei Ma
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
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16
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Wong BSE, Hu Q, Baeg GH. Epigenetic modulations in nanoparticle-mediated toxicity. Food Chem Toxicol 2017; 109:746-752. [DOI: 10.1016/j.fct.2017.07.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 07/04/2017] [Indexed: 12/14/2022]
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17
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Dusinska M, Tulinska J, El Yamani N, Kuricova M, Liskova A, Rollerova E, Rundén-Pran E, Smolkova B. Immunotoxicity, genotoxicity and epigenetic toxicity of nanomaterials: New strategies for toxicity testing? Food Chem Toxicol 2017; 109:797-811. [PMID: 28847762 DOI: 10.1016/j.fct.2017.08.030] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 08/22/2017] [Indexed: 01/29/2023]
Abstract
The unique properties of nanomaterials (NMs) are beneficial in numerous industrial and medical applications. However, they could also induce unintended effects. Thus, a proper strategy for toxicity testing is essential in human hazard and risk assessment. Toxicity can be tested in vivo and in vitro; in compliance with the 3Rs, alternative strategies for in vitro testing should be further developed for NMs. Robust, standardized methods are of great importance in nanotoxicology, with comprehensive material characterization and uptake as an integral part of the testing strategy. Oxidative stress has been shown to be an underlying mechanism of possible toxicity of NMs, causing both immunotoxicity and genotoxicity. For testing NMs in vitro, a battery of tests should be performed on cells of human origin, either cell lines or primary cells, in conditions as close as possible to an in vivo situation. Novel toxicity pathways, particularly epigenetic modification, should be assessed along with conventional toxicity testing methods. However, to initiate epigenetic toxicity screens for NM exposure, there is a need to better understand their adverse effects on the epigenome, to identify robust and reproducible causal links between exposure, epigenetic changes and adverse phenotypic endpoints, and to develop improved assays to monitor epigenetic toxicity.
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Affiliation(s)
- Maria Dusinska
- Health Effects Laboratory, Department of Environmental Chemistry-MILK, NILU- Norwegian Institute for Air Research, Kjeller, Norway.
| | - Jana Tulinska
- Faculty of Medicine, Department of Immunology and Immunotoxicology, Slovak Medical University, Bratislava, Slovakia
| | - Naouale El Yamani
- Health Effects Laboratory, Department of Environmental Chemistry-MILK, NILU- Norwegian Institute for Air Research, Kjeller, Norway
| | - Miroslava Kuricova
- Faculty of Medicine, Department of Immunology and Immunotoxicology, Slovak Medical University, Bratislava, Slovakia
| | - Aurelia Liskova
- Faculty of Medicine, Department of Immunology and Immunotoxicology, Slovak Medical University, Bratislava, Slovakia
| | - Eva Rollerova
- Faculty of Public Health, Department of Toxicology, Slovak Medical University, Bratislava, Slovakia
| | - Elise Rundén-Pran
- Health Effects Laboratory, Department of Environmental Chemistry-MILK, NILU- Norwegian Institute for Air Research, Kjeller, Norway
| | - Bozena Smolkova
- Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia.
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18
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Smolkova B, Dusinska M, Gabelova A. Nanomedicine and epigenome. Possible health risks. Food Chem Toxicol 2017; 109:780-796. [PMID: 28705729 DOI: 10.1016/j.fct.2017.07.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 07/08/2017] [Indexed: 02/07/2023]
Abstract
Nanomedicine is an emerging field that combines knowledge of nanotechnology and material science with pharmaceutical and biomedical sciences, aiming to develop nanodrugs with increased efficacy and safety. Compared to conventional therapeutics, nanodrugs manifest higher stability and circulation time, reduced toxicity and improved targeted delivery. Despite the obvious benefit, the accumulation of imaging agents and nanocarriers in the body following their therapeutic or diagnostic application generates concerns about their safety for human health. Numerous toxicology studies have demonstrated that exposure to nanomaterials (NMs) might pose serious risks to humans. Epigenetic modifications, representing a non-genotoxic mechanism of toxicant-induced health effects, are becoming recognized as playing a potential causative role in the aetiology of many diseases including cancer. This review i) provides an overview of recent advances in medical applications of NMs and ii) summarizes current evidence on their possible epigenetic toxicity. To discern potential health risks of NMs, since current data are mostly based upon in vitro and animal models, a better understanding of functional relationships between NM exposure, epigenetic deregulation and phenotype is required.
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Affiliation(s)
- Bozena Smolkova
- Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia.
| | - Maria Dusinska
- Health Effects Laboratory MILK, NILU- Norwegian Institute for Air Research, 2007 Kjeller, Norway
| | - Alena Gabelova
- Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia
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19
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Multiple endpoints to evaluate pristine and remediated titanium dioxide nanoparticles genotoxicity in lung epithelial A549 cells. Toxicol Lett 2017; 276:48-61. [DOI: 10.1016/j.toxlet.2017.05.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 05/05/2017] [Accepted: 05/15/2017] [Indexed: 12/14/2022]
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20
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Hu F, Xu P, Sun B, Teng G, Xiao Z. Deep sequencing reveals complex mechanisms of microRNA regulation during retinoic acid-induced neuronal differentiation of mesenchymal stem cells. Genomics 2017; 109:302-311. [PMID: 28502702 DOI: 10.1016/j.ygeno.2017.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 02/05/2023]
Abstract
Retinoic acid (RA) has an important role in nervous system development; exogenous RA could induce stem cells towards neural lineage cells. However, the miRNA regulation mechanism and biological process of this induction require further exploration. In this study, using high-throughput sequencing results, we evaluated the microRNA profiles of neurally differentiated adipose-derived mesenchymal stem cells (ASCs), summarized several crucial microRNAs that profoundly contributed to the differentiation process, and speculated that several miRNAs were likely to mimic RA or other factors to induce the neuronal differentiation of stem cells. The GO terms and KEGG PATHWAY in the DAVID tool were used to elucidate the biological process of RA induction. Finally, we described a network for clarifying the relationship among the miRNAs, target genes and signaling pathways. These findings will be beneficial for understanding the induction mechanism and supporting the application of RA in stem cell transformation.
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Affiliation(s)
- Feihu Hu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China; Medical School, Southeast University, Nanjing, Jiangsu, China
| | - Peng Xu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Gaojun Teng
- Medical School, Southeast University, Nanjing, Jiangsu, China; Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, China.
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China.
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21
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Hu F, Xu P, Sun B, Xiao Z. Differences in the MicroRNA profiles of subcutaneous adipose-derived stem cells and omental adipose-derived stem cells. Gene 2017; 625:55-63. [PMID: 28483594 DOI: 10.1016/j.gene.2017.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/30/2017] [Accepted: 05/04/2017] [Indexed: 01/09/2023]
Abstract
Adipose-derived stem cells (ASCs) isolated from subcutaneous (SC) and omentum (O) share similar characteristics, but the differences in their microRNA profiles are mostly unknown. In this study, besides significant differences in cell morphology and the differentiation ability of the two types of ASCs, the microRNA expression profiles of the cell lines were determined using SOLiD next-generation sequencing. The in-depth analysis found that miR-214, miR-222, miR-181a, miR-26a and miR-23/27/24 clusters and miR-375 act as "markers" to distinguish the different fat deposit-derived ASCs. Additionally, the global miRNA-mRNA interaction differences were revealed, and the results of the GO term enrichment and KEGG pathway in the DAVID tool showed that the molecular function, biological process and signaling pathways showed some different in the two types of ASCs. Our findings provided a clue to a more thorough understanding of the difference between SC-ASCs and O-ASCs and indicate their different potentials for clinical use.
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Affiliation(s)
- Feihu Hu
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China; Medical School, Southeast University, Nanjing, Jiangsu, China
| | - Peng Xu
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China
| | - Bo Sun
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China
| | - Zhongdang Xiao
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China.
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22
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MiR-218 Induces Neuronal Differentiation of ASCs in a Temporally Sequential Manner with Fibroblast Growth Factor by Regulation of the Wnt Signaling Pathway. Sci Rep 2017; 7:39427. [PMID: 28045049 PMCID: PMC5206743 DOI: 10.1038/srep39427] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 11/22/2016] [Indexed: 12/22/2022] Open
Abstract
Differentiation of neural lineages from mesenchymal stem cells has raised the hope of generating functional cells as seed cells for nerve tissue engineering. As important gene regulators, microRNAs (miRNAs) have been speculated to play a vital role in accelerating stem cell differentiation and repairing neuron damage. However, miRNA roles in directing differentiation of stem cells in current protocols are underexplored and the mechanisms of miRNAs as regulators of neuronal differentiation remain ambiguous. In this study, we have determined that miR-218 serves as crucial constituent regulator in neuronal differentiation of adipose stem cells (ASCs) through Wnt signaling pathway based on comprehensive annotation of miRNA sequencing data. Moreover, we have also discovered that miR-218 and Fibroblast Growth Factor-2 (FGF2) modulate neuronal differentiation in a sequential manner. These findings provide additional understanding of the mechanisms regulating stem cell neuronal differentiation as well as a new method for neural lineage differentiation of ASCs.
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23
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Paesano L, Perotti A, Buschini A, Carubbi C, Marmiroli M, Maestri E, Iannotta S, Marmiroli N. Data on HepG2 cells changes following exposure to cadmium sulphide quantum dots (CdS QDs). Data Brief 2016; 11:72-97. [PMID: 28138507 PMCID: PMC5257030 DOI: 10.1016/j.dib.2016.12.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/20/2016] [Accepted: 12/24/2016] [Indexed: 11/07/2022] Open
Abstract
The data included in this paper are associated with the research article entitled "Markers for toxicity to HepG2 exposed to cadmium sulphide quantum dots; damage to mitochondria" (Paesano et al.) [1]. The article concerns the cytotoxic and genotoxic effects of CdS QDs in HepG2 cells and the mechanisms involved. In this dataset, changes in expression levels of candidate genes are reported, together with details concerning synthesis and properties of CdS QDs, additional information obtained through literature survey, measures of the mitochondrial membrane potential and the glutathione redox state.
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Affiliation(s)
- Laura Paesano
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Alessio Perotti
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Annamaria Buschini
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Cecilia Carubbi
- Department of Biomedical, Biotechnological and Traslational Sciences (S.Bi.Bi.T), University of Parma, Via Gramsci 14, Parma 43126, Italy
| | - Marta Marmiroli
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Elena Maestri
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Salvatore Iannotta
- Istituto dei Materiali per l׳Elettronica ed il Magnetismo (IMEM-CNR), Parco Area delle Scienze 37/A, Parma 43124, Italy
| | - Nelson Marmiroli
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
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24
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Oh E, Liu R, Nel A, Gemill KB, Bilal M, Cohen Y, Medintz IL. Meta-analysis of cellular toxicity for cadmium-containing quantum dots. NATURE NANOTECHNOLOGY 2016; 11:479-86. [PMID: 26925827 DOI: 10.1038/nnano.2015.338] [Citation(s) in RCA: 281] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 12/16/2015] [Indexed: 04/14/2023]
Abstract
Understanding the relationships between the physicochemical properties of engineered nanomaterials and their toxicity is critical for environmental and health risk analysis. However, this task is confounded by material diversity, heterogeneity of published data and limited sampling within individual studies. Here, we present an approach for analysing and extracting pertinent knowledge from published studies focusing on the cellular toxicity of cadmium-containing semiconductor quantum dots. From 307 publications, we obtain 1,741 cell viability-related data samples, each with 24 qualitative and quantitative attributes describing the material properties and experimental conditions. Using random forest regression models to analyse the data, we show that toxicity is closely correlated with quantum dot surface properties (including shell, ligand and surface modifications), diameter, assay type and exposure time. Our approach of integrating quantitative and categorical data provides a roadmap for interrogating the wide-ranging toxicity data in the literature and suggests that meta-analysis can help develop methods for predicting the toxicity of engineered nanomaterials.
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Affiliation(s)
- Eunkeu Oh
- Optical Sciences Division, Code 5611, US Naval Research Laboratory, Washington, Washington DC 20375, USA
- Sotera Defense Solutions, Columbia, Maryland 21046, USA
| | - Rong Liu
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Andre Nel
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Medicine, Division of NanoMedicine, University of California, Los Angeles, California 90095, USA
| | - Kelly Boeneman Gemill
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
| | - Muhammad Bilal
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Yoram Cohen
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095-1592, USA
| | - Igor L Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
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Iavicoli I, Leso V, Schulte PA. Biomarkers of susceptibility: State of the art and implications for occupational exposure to engineered nanomaterials. Toxicol Appl Pharmacol 2015; 299:112-24. [PMID: 26724381 DOI: 10.1016/j.taap.2015.12.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 12/07/2015] [Accepted: 12/21/2015] [Indexed: 11/25/2022]
Abstract
Rapid advances and applications in nanotechnology are expected to result in increasing occupational exposure to nano-sized materials whose health impacts are still not completely understood. Scientific efforts are required to identify hazards from nanomaterials and define risks and precautionary management strategies for exposed workers. In this scenario, the definition of susceptible populations, which may be at increased risk of adverse effects may be important for risk assessment and management. The aim of this review is to critically examine available literature to provide a comprehensive overview on susceptibility aspects potentially affecting heterogeneous responses to nanomaterials workplace exposure. Genetic, genotoxic and epigenetic alterations induced by nanomaterials in experimental studies were assessed with respect to their possible function as determinants of susceptibility. Additionally, the role of host factors, i.e. age, gender, and pathological conditions, potentially affecting nanomaterial toxicokinetic and health impacts, were also analysed. Overall, this review provides useful information to obtain insights into the nanomaterial mode of action in order to identify potentially sensitive, specific susceptibility biomarkers to be validated in occupational settings and addressed in risk assessment processes. The findings of this review are also important to guide future research into a deeper characterization of nanomaterial susceptibility in order to define adequate risk communication strategies. Ultimately, identification and use of susceptibility factors in workplace settings has both scientific and ethical issues that need addressing.
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Affiliation(s)
- Ivo Iavicoli
- Department of Public Health, Division of Occupational Medicine, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy.
| | - Veruscka Leso
- Institute of Public Health, Section of Occupational Medicine, Catholic University of the Sacred Heart, Largo Francesco Vito 1, 00168 Rome, Italy.
| | - Paul A Schulte
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 4676 Columbia Parkway, MS C-14, Cincinnati, OH 45226, USA.
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Shyamasundar S, Ng CT, Lanry Yung LY, Dheen ST, Bay BH. Epigenetic mechanisms in nanomaterial-induced toxicity. Epigenomics 2015; 7:395-411. [DOI: 10.2217/epi.15.3] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
With the growing advent of nanotechnology in medicine (therapeutic, diagnostic and imaging applications), cosmetics, electronics, clothing and food industries, exposure to nanomaterials (NMs) is on the rise and therefore exploring their toxic biological effects have gained great significance. In vitro and in vivo studies over the last decade have revealed that NMs have the potential to cause cytotoxicity and genotoxicity although some contradictory reports exist. However, there are only few studies which have explored the epigenetic mechanisms (changes to DNA methylation, histone modification and miRNA expression) of NM-induced toxicity, and there is a scarcity of information and many questions in this area remain unexplored and unaddressed. This review comprehensively describes the epigenetic mechanisms involved in the induction of toxicity of engineered NMs, and provides comparisons between similar effects observed upon exposure to small or nanometer-sized particles. Lastly, gaps in existing literature and scope for future studies that improve our understanding of NM-induced epigenetic toxicity are discussed.
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Affiliation(s)
- Sukanya Shyamasundar
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117594
| | - Cheng Teng Ng
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117594
| | - Lin Yue Lanry Yung
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Singapore 117576
| | - Shaikali Thameem Dheen
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117594
| | - Boon Huat Bay
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117594
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Smolkova B, El Yamani N, Collins AR, Gutleb AC, Dusinska M. Nanoparticles in food. Epigenetic changes induced by nanomaterials and possible impact on health. Food Chem Toxicol 2014; 77:64-73. [PMID: 25554528 DOI: 10.1016/j.fct.2014.12.015] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 12/17/2022]
Abstract
Disturbed epigenetic mechanisms, which developmentally regulate gene expression via modifications to DNA, histone proteins, and chromatin, have been hypothesized to play a key role in many human diseases. Recently it was shown that engineered nanoparticles (NPs), that already have a wide range of applications in various fields including food production, could dramatically affect epigenetic processes, while their ability to induce diseases remains poorly understood. Besides the obvious benefits of the new technologies, it is critical to assess their health effects before proceeding with industrial production. In this article, after surveying the applications of NPs in food technology, we review recent advances in the understanding of epigenetic pathological effects of NPs, and discuss their possible health impact with the aim of avoiding potential health risks posed by the use of nanomaterials in foods and food-packaging.
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Affiliation(s)
- Bozena Smolkova
- Department of Genetics, Cancer Research Institute of Slovak Academy of Sciences, Bratislava, Slovakia
| | - Naouale El Yamani
- Health Effects Laboratory, Department of Environmental Chemistry (MILK), NILU- Norwegian Institute for Air Research, 2027 Kjeller, Norway; Department of Nutrition, University of Oslo, Oslo, Norway
| | | | - Arno C Gutleb
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology (LIST), Luxembourg, Luxembourg
| | - Maria Dusinska
- Health Effects Laboratory, Department of Environmental Chemistry (MILK), NILU- Norwegian Institute for Air Research, 2027 Kjeller, Norway.
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28
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Liang G, Li J, Sun B, Li S, Lü L, Wang Y, Chen B, Xiao Z. Deep sequencing reveals complex mechanisms of microRNA deregulation in colorectal cancer. Int J Oncol 2014; 45:603-10. [PMID: 24889194 DOI: 10.3892/ijo.2014.2474] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Accepted: 04/09/2014] [Indexed: 11/06/2022] Open
Abstract
Deregulated microRNAs (miRNAs) have been reported to be of functional relevance for tumor biology. In this study, we analyzed the small RNA transcriptomes of 10 paired colorectal cancer samples using SOLiD next-generation sequencing, and generated a total of >15141000 reads. miRNA expression profiles obtained by SOLiD sequencing correlated well with quantitative PCR results. The results showed that the expression of 36 miRNAs was significantly different between the two groups of samples. Additionally, we explored the global miRNA-mRNA interactions using a statistical model. In-depth analysis reveals a diagram of extensive post-transcriptional miRNA regulations. Signaling pathways associated with the miRNA altered expression signature were identified using gene enrichment analysis. The results suggest that these microRNAs, in the aggregate, regulate signaling pathways, such as MAPK, Wnt and p53 pathways in cancer, which are known to be involved in the transformation of colorectal cancer. This evidence demonstrates that miRNAs can cooperatively regulate a given pathway and play a subtle role by regulating their target genes.
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Affiliation(s)
- Gaofeng Liang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P.R. China
| | - Junsheng Li
- Department of Hematology and Oncology, Zhongda Hospital, Southeast University, Nanjing 210009, P.R. China
| | - Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P.R. China
| | - Shuchun Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P.R. China
| | - Lanxin Lü
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P.R. China
| | - Yuanyuan Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P.R. China
| | - Baoan Chen
- Department of Hematology and Oncology, Zhongda Hospital, Southeast University, Nanjing 210009, P.R. China
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P.R. China
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Sun B, Yang F, Hu FH, Huang NP, Xiao ZD. Comprehensive annotation of microRNA expression profiles. BMC Genet 2013; 14:120. [PMID: 24359251 PMCID: PMC3878191 DOI: 10.1186/1471-2156-14-120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 11/26/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) regulate many biological processes by post-translational gene silencing. Analysis of miRNA expression profiles is a reliable method for investigating particular biological processes due to the stability of miRNA and the development of advanced sequencing methods. However, this approach is limited by the broad specificity of miRNAs, which may target several mRNAs. RESULT In this study, we developed a method for comprehensive annotation of miRNA array or deep sequencing data for investigation of cellular biological effects. Using this method, the specific pathways and biological processes involved in Alzheimer's disease were predicted with high correlation in four independent samples. Furthermore, this method was validated for evaluation of cadmium telluride (CdTe) nanomaterial cytotoxicity. As a result, apoptosis pathways were selected as the top pathways associated with CdTe nanoparticle exposure, which is consistent with previous studies. CONCLUSIONS Our findings contribute to the validation of miRNA microarray or deep sequencing results for early diagnosis of disease and evaluation of the biological safety of new materials and drugs.
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Affiliation(s)
- Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P, R, China.
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30
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Chen L, Miao Y, Chen L, Jin P, Zha Y, Chai Y, Zheng F, Zhang Y, Zhou W, Zhang J, Wen L, Wang M. The role of elevated autophagy on the synaptic plasticity impairment caused by CdSe/ZnS quantum dots. Biomaterials 2013; 34:10172-81. [DOI: 10.1016/j.biomaterials.2013.09.048] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 09/13/2013] [Indexed: 01/07/2023]
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31
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Stoccoro A, Karlsson HL, Coppedè F, Migliore L. Epigenetic effects of nano-sized materials. Toxicology 2013; 313:3-14. [DOI: 10.1016/j.tox.2012.12.002] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 11/12/2012] [Accepted: 12/03/2012] [Indexed: 12/17/2022]
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Tang S, Cai Q, Chibli H, Allagadda V, Nadeau JL, Mayer GD. Cadmium sulfate and CdTe-quantum dots alter DNA repair in zebrafish (Danio rerio) liver cells. Toxicol Appl Pharmacol 2013; 272:443-52. [PMID: 23770381 DOI: 10.1016/j.taap.2013.06.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 05/29/2013] [Accepted: 06/03/2013] [Indexed: 10/26/2022]
Abstract
Increasing use of quantum dots (QDs) makes it necessary to evaluate their toxicological impacts on aquatic organisms, since their contamination of surface water is inevitable. This study compares the genotoxic effects of ionic Cd versus CdTe nanocrystals in zebrafish hepatocytes. After 24h of CdSO4 or CdTe QD exposure, zebrafish liver (ZFL) cells showed a decreased number of viable cells, an accumulation of Cd, an increased formation of reactive oxygen species (ROS), and an induction of DNA strand breaks. Measured levels of stress defense and DNA repair genes were elevated in both cases. However, removal of bulky DNA adducts by nucleotide excision repair (NER) was inhibited with CdSO4 but not with CdTe QDs. The adverse effects caused by acute exposure of CdTe QDs might be mediated through differing mechanisms than those resulting from ionic cadmium toxicity, and studying the effects of metallic components may be not enough to explain QD toxicities in aquatic organisms.
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Affiliation(s)
- Song Tang
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79416, USA
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33
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Zhang W, Miao Y, Lin K, Chen L, Dong Q, Huang C. Toxic effects of copper ion in zebrafish in the joint presence of CdTe QDs. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2013; 176:158-164. [PMID: 23421984 DOI: 10.1016/j.envpol.2013.01.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 01/24/2013] [Accepted: 01/25/2013] [Indexed: 06/01/2023]
Abstract
Quantum dots (QDs) have strong adsorption capacity; therefore, their potential toxicity of the facilitated transport of other trace toxic pollutants when they co-exist to aquatic organisms has become a hot research topic. The lab study was performed to determine the developmental toxicities to the zebrafish after exposed to the combined pollution of Cadmium-telluride (CdTe) QDs and copper ion (Cu(2+)) compared to the single exposure. Our findings for the first time revealed that: 1) CdTe QDs facilitated the accumulation of Cu(2+) in zebrafish, 2) the higher mortality, lower hatch rate, and more malformations can be clearly observed, 3) the diverse vascular hyperplasia, turbulence, and bifurcation of the exposed FLI-1 transgenic zebrafish larvae appeared together, 4) the synergistic effects played more important role during joint exposure. These observations provide a basic understanding of CdTe QDs and Cu(2+) joint toxicity to aquatic organisms.
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Affiliation(s)
- Wei Zhang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, PR China.
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35
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Bourdon JA, Saber AT, Halappanavar S, Jackson PA, Wu D, Hougaard KS, Jacobsen NR, Williams A, Vogel U, Wallin H, Yauk CL. Carbon black nanoparticle intratracheal installation results in large and sustained changes in the expression of miR-135b in mouse lung. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2012; 53:462-468. [PMID: 22753103 DOI: 10.1002/em.21706] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 05/05/2012] [Accepted: 05/07/2012] [Indexed: 06/01/2023]
Abstract
MicroRNAs (miRNA) are important noncoding regulatory molecules that bind target messenger RNA (mRNA), primarily affecting their translation into protein. Because miRNAs can simultaneously target hundreds of mRNAs, subtle changes in their expression can elicit important cellular effects. Little is known about the role of miRNAs in pulmonary responses to inhaled particulate matter. We studied pulmonary global miRNA responses to Printex 90 carbon black nanoparticles in (1) nonpregnant C57BL/6 female mice instilled with vehicle or a single dose of 0.162 mg and euthanized 1, 3, and 28 days post-exposure, and (2) C57BL/6Bom Tac dams instilled with vehicle or a cumulative dose of 0.268 mg (four separate instillations of vehicle or 0.067 mg Printex 90 during pregnancy) and euthanized at weaning (26-27 days postexposure). We measured similar expression profiles in both exposure scenarios, with marked increases in miR-135b and subtle changes in miR-21 and miR-146b. All three miRNAs were confirmed in nonpregnant females by RT-PCR, whereas only miR-135b was confirmed in the dams. Target analysis revealed no concomitant changes in established and predicted targets of miR-135b, miR-21, or miR-146b. Analysis of potentially perturbed pathways did not reveal changes that would suggest down-stream miRNA effects. The reasons for the lack of association between miRNA and transcript profiles may be related to the complexity of miRNA function and fate, or to the possibility that targets may differ from those already established or predicted in silico. We hypothesize that changes in the expression of these miRNAs may be associated with resolution of pulmonary inflammation, but future work will be necessary to precisely identify specific targets of these miRNAs in lungs.
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Affiliation(s)
- Julie A Bourdon
- Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture, Ottawa, Canada K1A 0K9
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Shi XL, Wang Q, Hu K, Wang XM. Exploration on the safety assessment of nanomaterials in China. Interface Focus 2012; 2:387-92. [PMID: 23741614 PMCID: PMC3363025 DOI: 10.1098/rsfs.2012.0017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 02/28/2012] [Indexed: 12/31/2022] Open
Abstract
More and more applications of nanomaterials have been achieved in the biomedicine field. Numerous nanomedical devices, such as bone grafts with nano-hydroxyapatite and the silver-based anti-bacteria products, have been developed and have been trying to enter into the Chinese market. The State Food and Drug Administration of China (SFDA) is facing a critical challenge of how to explore and supervise the safety assessment of the nanomedical products. This paper briefly introduces the approval status of nanomedical products and the current advances of the safety assessment of nanomaterials in China.
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Affiliation(s)
- Xin-Li Shi
- Center for Medical Device Evaluation, State Food and Drug Administration, Beijing 100044, People's Republic of China
| | - Qiangbin Wang
- Division of Nanobiomedicine/i-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, People's Republic of China
| | - Kun Hu
- National Engineering Laboratory on Regenerative Implantable Medical Devices, Science City, Guangzhou 510663, People's Republic of China
| | - Xiu-Mei Wang
- National Engineering Laboratory on Regenerative Implantable Medical Devices, Science City, Guangzhou 510663, People's Republic of China
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Kim M, Bae M, Na H, Yang M. Environmental toxicants--induced epigenetic alterations and their reversers. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2012; 30:323-367. [PMID: 23167630 DOI: 10.1080/10590501.2012.731959] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Epigenetics has been emphasized in the postgenome era to clarify obscure health risks of environmental toxicants including endocrine disrupting chemicals (EDCs). In addition, mixed exposure in real life can modify health consequences of the toxicants. Particularly, some nutritional and dietary materials modify individual susceptibility through changes in the epigenome. Therefore, we focused on some environmental toxicants that induce epigenetic alterations, and introduced chemopreventive materials to reverse the toxicants-induced epigenetic alterations. Methodologically, we used global and specific DNA methylation as epigenetic end points and searched epigenetic modulators in food. We reviewed various epigenetic end points induced by environmental toxicants including alcohol, asbestos, nanomaterials, benzene, EDCs, metals, and ionizing radiation. The epigenetic end points can be summarized into global hypomethylation and specific hypermethylation at diverse tumor suppress genes. Exposure timing, dose, sex, or organ specificity should be considered to use the epigenetic end points as biomarkers for exposure to the epimutagenic toxicants. Particularly, neonatal exposure to the epimutagens can influence their future adult health because of characteristics of the epimutagens, which disrupt epigenetic regulation in imprinting, organogenesis, development, etc. Considering interaction between epimutagenic toxicants and their reversers in food, we suggest that multiple exposures to them can alleviate or mask epigenetic toxicity in real life. Our present review provides useful information to find new end points of environmental toxicants and to prevention from environment-related diseases.
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Affiliation(s)
- Minju Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Yongsan-gu, Seoul, Republic of Korea
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38
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Studholme DJ. Deep sequencing of small RNAs in plants: applied bioinformatics. Brief Funct Genomics 2011; 11:71-85. [PMID: 22184332 DOI: 10.1093/bfgp/elr039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Small RNAs, including microRNA and short-interfering RNAs, play important roles in plants. In recent years, developments in sequencing technology have enabled the large-scale discovery of sRNAs in various cells, tissues and developmental stages and in response to various stresses. This review describes the bioinformatics challenges to analysing these large datasets of short-RNA sequences and some of the solutions to those challenges.
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Luo G, Long J, Zhang B, Liu C, Ji S, Xu J, Yu X, Ni Q. Quantum dots in cancer therapy. Expert Opin Drug Deliv 2011; 9:47-58. [PMID: 22171712 DOI: 10.1517/17425247.2012.638624] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Quantum dots (QDs) are nanometer-size luminescent semiconductor nanocrystals. Their unique optical properties, such as high brightness, long-term stability, simultaneous detection of multiple signals and tunable emission spectra, make them appealing as potential diagnostic and therapeutic systems in the field of oncology. AREAS COVERED This paper summarizes the recent progress of promising applications of QDs in cancer therapy, from the following aspects: identifying molecular targets, sentinel lymph-node mapping, surgical oncology, drug delivery and tracking, fluorescence resonance energy transfer and photodynamic therapy, personalized and predictive medicine, and multifunctional design and development. Limitations and toxicity issues related to QDs in living organisms are also discussed. EXPERT OPINION Bioconjugated QDs can be used to identify potential molecular biomarkers for cancer diagnosis, treatment and prognosis. They may allow the surgeon to map sentinel lymph nodes and perform a complete surgical resection. Their unique optical properties make them ideal donors of fluorescence resonance energy transfer and photodynamic therapy studies. Multifunctional QDs have become effective materials for synchronous cancer diagnosis, targeting and treatment. For QDs, toxicity remains the major barrier to clinical translation.
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Affiliation(s)
- Guopei Luo
- Fudan University Shanghai, Shanghai Cancer Center, Department of Pancreas & Hepatobiliary Surgery, No. 270, Dong'An Road, Xuhui District, Shanghai, 200032, China
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Li S, Wang H, Qi Y, Tu J, Bai Y, Tian T, Huang N, Wang Y, Xiong F, Lu Z, Xiao Z. Assessment of nanomaterial cytotoxicity with SOLiD sequencing-based microRNA expression profiling. Biomaterials 2011; 32:9021-30. [DOI: 10.1016/j.biomaterials.2011.08.033] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2011] [Accepted: 08/10/2011] [Indexed: 10/17/2022]
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