1
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Biomarkers of nanomaterials hazard from multi-layer data. Nat Commun 2022; 13:3798. [PMID: 35778420 PMCID: PMC9249793 DOI: 10.1038/s41467-022-31609-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/17/2022] [Indexed: 11/09/2022] Open
Abstract
There is an urgent need to apply effective, data-driven approaches to reliably predict engineered nanomaterial (ENM) toxicity. Here we introduce a predictive computational framework based on the molecular and phenotypic effects of a large panel of ENMs across multiple in vitro and in vivo models. Our methodology allows for the grouping of ENMs based on multi-omics approaches combined with robust toxicity tests. Importantly, we identify mRNA-based toxicity markers and extensively replicate them in multiple independent datasets. We find that models based on combinations of omics-derived features and material intrinsic properties display significantly improved predictive accuracy as compared to physicochemical properties alone.
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2
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Nanofortification of vitamin B-complex in food matrix: Need, regulations, and prospects. FOOD CHEMISTRY: MOLECULAR SCIENCES 2022; 4:100100. [PMID: 35769403 PMCID: PMC9235048 DOI: 10.1016/j.fochms.2022.100100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 03/07/2022] [Accepted: 03/12/2022] [Indexed: 11/17/2022]
Abstract
Overview of nanomaterials to fortify food with vitamin B-complex. Nanofortification of food with vitamin B-complex to overcome conventional fortification challenges. Regulatory aspects, prospects, and upcoming trends of this indispensable technology are also discussed.
Micronutrient malnutrition (or hidden hunger) caused by vitamin B-complex deficiency is a significant concern in the growing population. Vitamin B-complex plays an essential role in many body functions. With the introduction of nanotechnology in the food industry, new and innovative techniques have started to develop, which holds a promising future to end malnutrition and help achieve United Nations Sustainable Developmental Goal-2 (UN SDG-2), named as zero hunger. This review highlights the need for nanofortification of vitamin B-complex in food matrix to address challenges faced by conventional fortification methods (bioavailability, controlled release, physicochemical stability, and shelf life). Further, different nanomaterials like organic, inorganic, carbon, and composites along with their applications, are discussed in detail. Among various nanomaterials, organic nanomaterials (lipid, polysaccharides, proteins, and biopolymers) were found best for fortifying vitamin B-complex in foods. Additionally, different regulatory aspects across the globe and prospects of this upcoming field are also highlighted in this review.
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3
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Petersen EJ, Uhl R, Toman B, Elliott JT, Strickland J, Truax J, Gordon J. Development of a 96-Well Electrophilic Allergen Screening Assay for Skin Sensitization Using a Measurement Science Approach. TOXICS 2022; 10:257. [PMID: 35622670 PMCID: PMC9147637 DOI: 10.3390/toxics10050257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/26/2022] [Accepted: 05/05/2022] [Indexed: 12/12/2022]
Abstract
The Electrophilic Allergen Screening Assay (EASA) has emerged as a promising in chemico method to detect the first key event in the adverse outcome pathway (AOP) for skin sensitization. This assay functions by assessing the depletion of one of two probe molecules (4-nitrobenzenethiol (NBT) and pyridoxylamine (PDA)) in the presence of a test compound (TC). The initial development of EASA utilized a cuvette format resulting in multiple measurement challenges such as low throughput and the inability to include adequate control measurements. In this study, we describe the redesign of EASA into a 96-well plate format that incorporates in-process control measurements to quantify key sources of variability each time the assay is run. The data from the analysis of 67 TCs using the 96-well format had 77% concordance with animal data from the local lymph node assay (LLNA), a result consistent with that for the direct peptide reactivity assay (DPRA), an OECD test guideline (442C) protein binding assay. Overall, the measurement science approach described here provides steps during assay development that can be taken to increase confidence of in chemico assays by attempting to fully characterize the sources of variability and potential biases and incorporate in-process control measurements into the assay.
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Affiliation(s)
- Elijah J. Petersen
- Biosystems and Biomaterials Division, Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA;
| | - Richard Uhl
- Division of Laboratory Sciences, Chemistry, US Consumer Product Safety Commission (CPSC), 5 Research Place, Rockville, MD 20850, USA;
| | - Blaza Toman
- Statistical Engineering Division, Information Technology Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA;
| | - John T. Elliott
- Biosystems and Biomaterials Division, Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA;
| | - Judy Strickland
- Inotiv-RTP., 601 Keystone Park Drive, Suite 800, Morrisville, NC 27560, USA; (J.S.); (J.T.)
| | - James Truax
- Inotiv-RTP., 601 Keystone Park Drive, Suite 800, Morrisville, NC 27560, USA; (J.S.); (J.T.)
| | - John Gordon
- Division of Toxicology and Risk Assessment, US Consumer Product Safety Commission (CPSC), 5 Research Place, Rockville, MD 20850, USA;
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4
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Scott-Fordsmand JJ, Amorim MJDB, de Garidel-Thoron C, Castranova V, Hardy B, Linkov I, Feitshans I, Nichols G, Petersen EJ, Spurgeon D, Tinkle S, Vogel U, Westerhoff P, Wiesner MR, Hendren CO. Bridging international approaches on nanoEHS. NATURE NANOTECHNOLOGY 2021; 16:608-611. [PMID: 34017101 DOI: 10.1038/s41565-021-00912-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
| | | | | | | | | | - Igor Linkov
- US Army Engineer Research and Development Center, Concord, MA, USA
| | - Ilise Feitshans
- European Scientific Institute, Archamps, France
- Work Health and Survival Project, Haddonfield, USA
| | - Gregory Nichols
- Homeland Defense and Security Information Analysis Center, Oak Ridge, TN, USA
- GP Nichols & Company, Knoxville, USA
| | | | | | - Sally Tinkle
- IDA/Science and Technology Policy Institute, Washington, DC, USA
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
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5
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Kokot H, Kokot B, Sebastijanović A, Voss C, Podlipec R, Zawilska P, Berthing T, Ballester-López C, Danielsen PH, Contini C, Ivanov M, Krišelj A, Čotar P, Zhou Q, Ponti J, Zhernovkov V, Schneemilch M, Doumandji Z, Pušnik M, Umek P, Pajk S, Joubert O, Schmid O, Urbančič I, Irmler M, Beckers J, Lobaskin V, Halappanavar S, Quirke N, Lyubartsev AP, Vogel U, Koklič T, Stoeger T, Štrancar J. Prediction of Chronic Inflammation for Inhaled Particles: the Impact of Material Cycling and Quarantining in the Lung Epithelium. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003913. [PMID: 33073368 DOI: 10.1002/adma.202003913] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/22/2020] [Indexed: 06/11/2023]
Abstract
On a daily basis, people are exposed to a multitude of health-hazardous airborne particulate matter with notable deposition in the fragile alveolar region of the lungs. Hence, there is a great need for identification and prediction of material-associated diseases, currently hindered due to the lack of in-depth understanding of causal relationships, in particular between acute exposures and chronic symptoms. By applying advanced microscopies and omics to in vitro and in vivo systems, together with in silico molecular modeling, it is determined herein that the long-lasting response to a single exposure can originate from the interplay between the newly discovered nanomaterial quarantining and nanomaterial cycling between different lung cell types. This new insight finally allows prediction of the spectrum of lung inflammation associated with materials of interest using only in vitro measurements and in silico modeling, potentially relating outcomes to material properties for a large number of materials, and thus boosting safe-by-design-based material development. Because of its profound implications for animal-free predictive toxicology, this work paves the way to a more efficient and hazard-free introduction of numerous new advanced materials into our lives.
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Affiliation(s)
- Hana Kokot
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
- Jožef Stefan International Postgraduate School, Ljubljana, 1000, Slovenia
| | - Boštjan Kokot
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
- Faculty of Natural Sciences and Mathematics, University of Maribor, Maribor, 2000, Slovenia
| | - Aleksandar Sebastijanović
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
- Jožef Stefan International Postgraduate School, Ljubljana, 1000, Slovenia
| | - Carola Voss
- Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Rok Podlipec
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
- Ion Beam Center, Helmholtz-Zentrum Dresden-Rossendorf e.V., 01328, Dresden, Germany
| | - Patrycja Zawilska
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Trine Berthing
- National Research Centre for the Working Environment, Copenhagen Ø, 2100, Denmark
| | | | | | - Claudia Contini
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, W12 0BZ, UK
| | - Mikhail Ivanov
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Ana Krišelj
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Petra Čotar
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, 1000, Slovenia
| | - Qiaoxia Zhou
- Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764, Neuherberg, Germany
- Department of Forensic Pathology, Sichuan University, Chengdu, 610065, China
| | - Jessica Ponti
- European Commission, Joint Research Centre (JRC), Ispra, 21027, Italy
| | - Vadim Zhernovkov
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Matthew Schneemilch
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, W12 0BZ, UK
| | - Zahra Doumandji
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, Nancy, F-54000, France
| | - Mojca Pušnik
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, 1000, Slovenia
| | - Polona Umek
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Stane Pajk
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, 1000, Slovenia
| | - Olivier Joubert
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, Nancy, F-54000, France
| | - Otmar Schmid
- Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Iztok Urbančič
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Martin Irmler
- Institute of Experimental Genetics, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Johannes Beckers
- Institute of Experimental Genetics, Helmholtz Zentrum München, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
- Chair of Experimental Genetics, Center of Life and Food Sciences, Weihenstephan, Technische Universität München, 85354, Freising, Germany
| | - Vladimir Lobaskin
- School of Physics, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Sabina Halappanavar
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, K1Y 0M1, Canada
| | - Nick Quirke
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, W12 0BZ, UK
| | - Alexander P Lyubartsev
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen Ø, 2100, Denmark
| | - Tilen Koklič
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Tobias Stoeger
- Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Janez Štrancar
- Department of Condensed Matter Physics, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
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6
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Shiekh FA, Hameed A, Farooq O, Lodhi MU. For (nano) rules and regulations: the learning curve. Nanomedicine (Lond) 2020; 15:2225-2228. [PMID: 32856527 DOI: 10.2217/nnm-2020-0219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Farooq A Shiekh
- Department of Biochemistry, Government Medical College (GMC), Baramulla, Kashmir, India
| | - Abdul Hameed
- Department of Anesthesia, Government Medical College (GMC), Baramulla, Kashmir, India
| | - Omar Farooq
- Department of Neurology, Government Medical College (GMC), Srinagar, Kashmir, India
| | - Mohammad Uzair Lodhi
- Department of Internal Medicine, Eastern Idaho Regional Medical Center, Idaho Falls, ID 83404, USA
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7
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Proteomic Analysis Identifies Markers of Exposure to Cadmium Sulphide Quantum Dots (CdS QDs). NANOMATERIALS 2020; 10:nano10061214. [PMID: 32580447 PMCID: PMC7353101 DOI: 10.3390/nano10061214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/10/2020] [Accepted: 06/17/2020] [Indexed: 12/11/2022]
Abstract
The use of cadmium sulphide quantum dot (CdS QD)-enabled products has become increasingly widespread. The prospect of their release in the environment is raising concerns. Here we have used the yeast model Saccharomyces cerevisiae to determine the potential impact of CdS QD nanoparticles on living organisms. Proteomic analyses and cell viability assays performed after 9 h exposure revealed expression of proteins involved in oxidative stress and reduced lethality, respectively, whereas oxidative stress declined, and lethality increased after 24 h incubation in the presence of CdS QDs. Quantitative proteomics using the iTRAQ approach (isobaric tags for relative and absolute quantitation) revealed that key proteins involved in essential biological pathways were differentially regulated over the time course of the experiment. At 9 h, most of the glycolytic functions increased, and the abundance of the number of heat shock proteins increased. This contrasts with the situation at 24 h where glycolytic functions, some heat shock proteins as well as oxidative phosphorylation and ATP synthesis were down-regulated. It can be concluded from our data that cell exposure to CdS QDs provokes a metabolic shift from respiration to fermentation, comparable to the situation reported in some cancer cell lines.
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8
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Nymark P, Bakker M, Dekkers S, Franken R, Fransman W, García-Bilbao A, Greco D, Gulumian M, Hadrup N, Halappanavar S, Hongisto V, Hougaard KS, Jensen KA, Kohonen P, Koivisto AJ, Dal Maso M, Oosterwijk T, Poikkimäki M, Rodriguez-Llopis I, Stierum R, Sørli JB, Grafström R. Toward Rigorous Materials Production: New Approach Methodologies Have Extensive Potential to Improve Current Safety Assessment Practices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1904749. [PMID: 31913582 DOI: 10.1002/smll.201904749] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Advanced material development, including at the nanoscale, comprises costly and complex challenges coupled to ensuring human and environmental safety. Governmental agencies regulating safety have announced interest toward acceptance of safety data generated under the collective term New Approach Methodologies (NAMs), as such technologies/approaches offer marked potential to progress the integration of safety testing measures during innovation from idea to product launch of nanomaterials. Divided in overall eight main categories, searchable databases for grouping and read across purposes, exposure assessment and modeling, in silico modeling of physicochemical structure and hazard data, in vitro high-throughput and high-content screening assays, dose-response assessments and modeling, analyses of biological processes and toxicity pathways, kinetics and dose extrapolation, consideration of relevant exposure levels and biomarker endpoints typify such useful NAMs. Their application generally agrees with articulated stakeholder needs for improvement of safety testing procedures. They further fit for inclusion and add value in nanomaterials risk assessment tools. Overall 37 of 50 evaluated NAMs and tiered workflows applying NAMs are recommended for considering safer-by-design innovation, including guidance to the selection of specific NAMs in the eight categories. An innovation funnel enriched with safety methods is ultimately proposed under the central aim of promoting rigorous nanomaterials innovation.
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Affiliation(s)
- Penny Nymark
- Karolinska Institutet, Institute of Environmental Medicine, Nobels väg 13, 171 77, Stockholm, Sweden
- Department of Toxicology, Misvik Biology, Karjakatu 35 B, 20520, Turku, Finland
| | - Martine Bakker
- National Institute for Public Health and the Environment, RIVM, P.O. Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Susan Dekkers
- National Institute for Public Health and the Environment, RIVM, P.O. Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Remy Franken
- Netherlands Organisation for Applied Scientific Research, TNO, P.O. Box 96800, NL-2509 JE, The Hague, The Netherlands
| | - Wouter Fransman
- Netherlands Organisation for Applied Scientific Research, TNO, P.O. Box 96800, NL-2509 JE, The Hague, The Netherlands
| | - Amaia García-Bilbao
- GAIKER Technology Centre, Parque Tecnológico, Ed. 202, 48170, Zamudio, Bizkaia, Spain
| | - Dario Greco
- Faculty of Medicine and Health Technology, Tampere University, Korkeakoulunkatu 6, 33720, Tampere, Finland
- Institute of Biotechnology, University of Helsinki, P.O. Box 56, FI-00014, Helsinki, Finland
| | - Mary Gulumian
- National Institute for Occupational Health, 25 Hospital St, Constitution Hill, 2000, Johannesburg, South Africa
- Haematology and Molecular Medicine Department, University of the Witwatersrand, 7 York Road, Parktown, 2193, Johannesburg, South Africa
| | - Niels Hadrup
- National Research Center for the Work Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark
| | - Sabina Halappanavar
- Environmental Health Science and Research Bureau, Health Canada, 50 Colombine Driveway, Ottawa, ON, K1A 0K9, Canada
| | - Vesa Hongisto
- Department of Toxicology, Misvik Biology, Karjakatu 35 B, 20520, Turku, Finland
| | - Karin Sørig Hougaard
- National Research Center for the Work Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark
| | - Keld Alstrup Jensen
- National Research Center for the Work Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark
| | - Pekka Kohonen
- Karolinska Institutet, Institute of Environmental Medicine, Nobels väg 13, 171 77, Stockholm, Sweden
- Department of Toxicology, Misvik Biology, Karjakatu 35 B, 20520, Turku, Finland
| | - Antti Joonas Koivisto
- National Research Center for the Work Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark
| | - Miikka Dal Maso
- Aerosol Physics Laboratory, Physics Unit, Tampere University, Korkeakoulunkatu 6, 33720, Tampere, Finland
| | - Thies Oosterwijk
- Netherlands Organisation for Applied Scientific Research, TNO, P.O. Box 96800, NL-2509 JE, The Hague, The Netherlands
| | - Mikko Poikkimäki
- Aerosol Physics Laboratory, Physics Unit, Tampere University, Korkeakoulunkatu 6, 33720, Tampere, Finland
| | | | - Rob Stierum
- Netherlands Organisation for Applied Scientific Research, TNO, P.O. Box 96800, NL-2509 JE, The Hague, The Netherlands
| | - Jorid Birkelund Sørli
- National Research Center for the Work Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark
| | - Roland Grafström
- Karolinska Institutet, Institute of Environmental Medicine, Nobels väg 13, 171 77, Stockholm, Sweden
- Department of Toxicology, Misvik Biology, Karjakatu 35 B, 20520, Turku, Finland
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9
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Fadeel B. The Right Stuff: On the Future of Nanotoxicology. FRONTIERS IN TOXICOLOGY 2019; 1:1. [PMID: 35295768 PMCID: PMC8915828 DOI: 10.3389/ftox.2019.00001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 11/15/2019] [Indexed: 11/16/2022] Open
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10
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Murphy CA, Nisbet RM, Antczak P, Garcia-Reyero N, Gergs A, Lika K, Mathews T, Muller EB, Nacci D, Peace A, Remien CH, Schultz IR, Stevenson LM, Watanabe KH. Incorporating Suborganismal Processes into Dynamic Energy Budget Models for Ecological Risk Assessment. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2018; 14:615-624. [PMID: 29870141 PMCID: PMC6643959 DOI: 10.1002/ieam.4063] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/27/2018] [Accepted: 05/31/2018] [Indexed: 05/19/2023]
Abstract
A working group at the National Institute for Mathematical and Biological Synthesis (NIMBioS) explored the feasibility of integrating 2 complementary approaches relevant to ecological risk assessment. Adverse outcome pathway (AOP) models provide "bottom-up" mechanisms to predict specific toxicological effects that could affect an individual's ability to grow, reproduce, and/or survive from a molecular initiating event. Dynamic energy budget (DEB) models offer a "top-down" approach that reverse engineers stressor effects on growth, reproduction, and/or survival into modular characterizations related to the acquisition and processing of energy resources. Thus, AOP models quantify linkages between measurable molecular, cellular, or organ-level events, but they do not offer an explicit route to integratively characterize stressor effects at higher levels of organization. While DEB models provide the inherent basis to link effects on individuals to those at the population and ecosystem levels, their use of abstract variables obscures mechanistic connections to suborganismal biology. To take advantage of both approaches, we developed a conceptual model to link DEB and AOP models by interpreting AOP key events as measures of damage-inducing processes affecting DEB variables and rates. We report on the type and structure of data that are generated for AOP models that may also be useful for DEB models. We also report on case studies under development that merge information collected for AOPs with DEB models and highlight some of the challenges. Finally, we discuss how the linkage of these 2 approaches can improve ecological risk assessment, with possibilities for progress in predicting population responses to toxicant exposures within realistic environments. Integr Environ Assess Manag 2018;14:615-624. © 2018 SETAC.
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Affiliation(s)
- Cheryl A Murphy
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, USA
| | - Roger M Nisbet
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, California, USA
| | - Philipp Antczak
- Institute for Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Natàlia Garcia-Reyero
- Environmental Laboratory, US Army Engineer Research & Development Center, Vicksburg, Mississippi
| | - Andre Gergs
- gaiac-Research Institute for Ecosystem Analysis and Assessment, Aachen, Germany
| | - Konstadia Lika
- Department of Biology, University of Crete, Voutes University Campus, Heraklion, Greece
| | - Teresa Mathews
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Erik B Muller
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, California, USA
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Diane Nacci
- US Environmental Protection Agency, Office of Research and Development, Narragansett, Rhode Island
| | - Angela Peace
- Department of Mathematics and Statistics, Texas Tech University, Lubbock, Texas, USA
| | | | - Irvin R Schultz
- Marine Sciences Lab, Pacific NW National Laboratory, Sequim, Washington, USA
- Present address: Lynker Technologies, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, Washington, USA
| | - Louise M Stevenson
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, California, USA
| | - Karen H Watanabe
- School of Mathematical and Natural Sciences, Arizona State University, Glendale, Arizona, USA
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11
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Fadeel B, Farcal L, Hardy B, Vázquez-Campos S, Hristozov D, Marcomini A, Lynch I, Valsami-Jones E, Alenius H, Savolainen K. Advanced tools for the safety assessment of nanomaterials. NATURE NANOTECHNOLOGY 2018; 13:537-543. [PMID: 29980781 DOI: 10.1038/s41565-018-0185-0] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 06/05/2018] [Indexed: 05/21/2023]
Abstract
Engineered nanomaterials (ENMs) have tremendous potential to produce beneficial technological impact in numerous sectors in society. Safety assessment is, of course, of paramount importance. However, the myriad variations of ENM properties makes the identification of specific features driving toxicity challenging. At the same time, reducing animal tests by introducing alternative and/or predictive in vitro and in silico methods has become a priority. It is important to embrace these new advances in the safety assessment of ENMs. Indeed, remarkable progress has been made in recent years with respect to mechanism-based hazard assessment of ENMs, including systems biology approaches as well as high-throughput screening platforms, and new tools are also emerging in risk assessment and risk management for humans and the environment across the whole life-cycle of nano-enabled products. Here, we highlight some of the key advances in the hazard and risk assessment of ENMs.
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Affiliation(s)
- Bengt Fadeel
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | | | | | - Danail Hristozov
- Department of Biology, University of Venice Ca Foscari, Venice, Italy
| | - Antonio Marcomini
- Department of Biology, University of Venice Ca Foscari, Venice, Italy
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Eugenia Valsami-Jones
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Harri Alenius
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - Kai Savolainen
- Finnish Institute of Occupational Health, Helsinki, Finland.
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12
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Berry C. The failure of rodent carcinogenesis as a model for Man. Toxicol Res (Camb) 2018; 7:553-557. [PMID: 30090605 PMCID: PMC6062156 DOI: 10.1039/c7tx00283a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/14/2017] [Indexed: 11/21/2022] Open
Abstract
Recent advances in our understanding of the process of carcinogenesis in Man have required revision of our thinking about the classical initiation/promotion sequence; understanding must now encompass the roles of both genetic and epigenetic change, realisation of the importance of the variable genetic backgrounds of the tumour bearers in any group and an understanding of the importance of random genetic events over time. The behavior of tumours, once established, is more complex than has been thought. Current views of the processes involved are not modelled in toxicity testing programmes.
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Affiliation(s)
- Colin Berry
- Queen Mary , London , Mile End Rd , London E1 4NS , UK .
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Chilton ML, Macmillan DS, Steger-Hartmann T, Hillegass J, Bellion P, Vuorinen A, Etter S, Smith BP, White A, Sterchele P, De Smedt A, Glogovac M, Glowienke S, O'Brien D, Parakhia R. Making reliable negative predictions of human skin sensitisation using an in silico fragmentation approach. Regul Toxicol Pharmacol 2018; 95:227-235. [DOI: 10.1016/j.yrtph.2018.03.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 03/20/2018] [Indexed: 01/14/2023]
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14
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Choudhuri S, Patton GW, Chanderbhan RF, Mattia A, Klaassen CD. From Classical Toxicology to Tox21: Some Critical Conceptual and Technological Advances in the Molecular Understanding of the Toxic Response Beginning From the Last Quarter of the 20th Century. Toxicol Sci 2018; 161:5-22. [PMID: 28973688 PMCID: PMC5837539 DOI: 10.1093/toxsci/kfx186] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Toxicology has made steady advances over the last 60+ years in understanding the mechanisms of toxicity at an increasingly finer level of cellular organization. Traditionally, toxicological studies have used animal models. However, the general adoption of the principles of 3R (Replace, Reduce, Refine) provided the impetus for the development of in vitro models in toxicity testing. The present commentary is an attempt to briefly discuss the transformation in toxicology that began around 1980. Many genes important in cellular protection and metabolism of toxicants were cloned and characterized in the 80s, and gene expression studies became feasible, too. The development of transgenic and knockout mice provided valuable animal models to investigate the role of specific genes in producing toxic effects of chemicals or protecting the organism from the toxic effects of chemicals. Further developments in toxicology came from the incorporation of the tools of "omics" (genomics, proteomics, metabolomics, interactomics), epigenetics, systems biology, computational biology, and in vitro biology. Collectively, the advances in toxicology made during the last 30-40 years are expected to provide more innovative and efficient approaches to risk assessment. A goal of experimental toxicology going forward is to reduce animal use and yet be able to conduct appropriate risk assessments and make sound regulatory decisions using alternative methods of toxicity testing. In that respect, Tox21 has provided a big picture framework for the future. Currently, regulatory decisions involving drugs, biologics, food additives, and similar compounds still utilize data from animal testing and human clinical trials. In contrast, the prioritization of environmental chemicals for further study can be made using in vitro screening and computational tools.
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Affiliation(s)
- Supratim Choudhuri
- Office of Food Additive Safety, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland
| | - Geoffrey W Patton
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, Washington
| | - Ronald F Chanderbhan
- Office of Food Additive Safety, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland
| | - Antonia Mattia
- Office of Food Additive Safety, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland
| | - Curtis D Klaassen
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, Washington
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