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Hristozov D, Badetti E, Bigini P, Brunelli A, Dekkers S, Diomede L, Doak SH, Fransman W, Gajewicz-Skretna A, Giubilato E, Gómez-Cuadrado L, Grafström R, Gutleb AC, Halappanavar S, Hischier R, Hunt N, Katsumiti A, Kermanizadeh A, Marcomini A, Moschini E, Oomen A, Pizzol L, Rumbo C, Schmid O, Shandilya N, Stone V, Stoycheva S, Stoeger T, Merino BS, Tran L, Tsiliki G, Vogel UB, Wohlleben W, Zabeo A. Next Generation Risk Assessment approaches for advanced nanomaterials: Current status and future perspectives. NANOIMPACT 2024; 35:100523. [PMID: 39059749 DOI: 10.1016/j.impact.2024.100523] [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: 04/16/2024] [Revised: 07/10/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
This manuscript discusses the challenges of applying New Approach Methodologies (NAMs) for safe by design and regulatory risk assessment of advanced nanomaterials (AdNMs). The authors propose a framework for Next Generation Risk Assessment of AdNMs involving NAMs that is aligned to the conventional risk assessment paradigm. This framework is exposure-driven, endpoint-specific, makes best use of pre-existing information, and can be implemented in tiers of increasing specificity and complexity of the adopted NAMs. The tiered structure of the approach, which effectively combines the use of existing data with targeted testing will allow safety to be assessed cost-effectively and as far as possible with even more limited use of vertebrates. The regulatory readiness of state-of-the-art emerging NAMs is assessed in terms of Transparency, Reliability, Accessibility, Applicability, Relevance and Completeness, and their appropriateness for AdNMs is discussed in relation to each step of the risk assessment paradigm along with providing perspectives for future developments in the respective scientific and regulatory areas.
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Affiliation(s)
- Danail Hristozov
- East European Research and Innovation Enterprise (EMERGE), Otets Paisiy Str. 46, 1303 Sofa, Bulgaria.
| | - Elena Badetti
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172 Venice, Italy
| | - Paolo Bigini
- Department of Biochemistry and Molecular Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy
| | - Andrea Brunelli
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172 Venice, Italy
| | - Susan Dekkers
- Netherlands Organisation for Applied Scientific Research (TNO), Princetonlaan 6, 3584 CB Utrecht, the Netherlands
| | - Luisa Diomede
- Department of Biochemistry and Molecular Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy
| | - Shareen H Doak
- Swansea University Medical School, Faculty of Medicine, Health & Life Science, Singleton Park, Swansea SA2 8PP, United Kingdom
| | - Wouter Fransman
- Netherlands Organisation for Applied Scientific Research (TNO), Princetonlaan 6, 3584 CB Utrecht, the Netherlands
| | - Agnieszka Gajewicz-Skretna
- Laboratory of Environmental Chemoinformatics, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-309 Gdansk, Poland
| | - Elisa Giubilato
- GreenDecision Srl, Cannaregio 5904, 30121 Venezia, VE, Italy
| | - Laura Gómez-Cuadrado
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain
| | - Roland Grafström
- Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, 17177 Stockholm, Sweden
| | - Arno C Gutleb
- Luxemburg Institute of Science and Technology (LIST), 41, rue du Brill, L-4422 Belvaux, Luxembourg
| | - Sabina Halappanavar
- Environmental Health Science and Research Bureau, Health Canada, 251 Sir Frederick Banting Building, Banting Driveway, Ottawa, Ontario K1A 0K9, Canada
| | - Roland Hischier
- Swiss Federal Laboratories for Materials Science and Technology (EMPA), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Neil Hunt
- Yordas Group, Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Alberto Katsumiti
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Zamudio, Spain
| | - Ali Kermanizadeh
- University of Derby, College of Science and Engineering, Kedleston Road, Derby DE22 1GB, United Kingdom
| | - Antonio Marcomini
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172 Venice, Italy
| | - Elisa Moschini
- Luxemburg Institute of Science and Technology (LIST), 41, rue du Brill, L-4422 Belvaux, Luxembourg; Heriot-Watt University, School of Engineering and Physical Sciences (EPS), Institute of Biological Chemistry, Biophysics and Bioengineering (IB3), David Brewster Building, Edinburgh EH14 4AS, United Kingdom
| | - Agnes Oomen
- National Institute for Public Health and the Environment (RIVM), Center for Safety of Substances and Products, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, the Netherlands
| | - Lisa Pizzol
- GreenDecision Srl, Cannaregio 5904, 30121 Venezia, VE, Italy
| | - Carlos Rumbo
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain
| | - Otmar Schmid
- Helmholtz Munich, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Neeraj Shandilya
- Netherlands Organisation for Applied Scientific Research (TNO), Princetonlaan 6, 3584 CB Utrecht, the Netherlands
| | - Vicki Stone
- Heriot-Watt University, School of Engineering and Physical Sciences (EPS), Institute of Biological Chemistry, Biophysics and Bioengineering (IB3), David Brewster Building, Edinburgh EH14 4AS, United Kingdom
| | - Stella Stoycheva
- Yordas Group, Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Tobias Stoeger
- Helmholtz Munich, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | | | - Lang Tran
- Institute of Occupational Medicine (IOM), Research Avenue North, Riccarton, Edinburgh EH14 4AP, United Kingdom
| | - Georgia Tsiliki
- Purposeful IKE, Tritis Septembriou 144, Athens 11251, Greece
| | - Ulla Birgitte Vogel
- The National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark
| | - Wendel Wohlleben
- BASF SE, RGA/AP - B7, Carl-Bosch-Strasse 38, 67056 Ludwigshafen am Rhein, Germany
| | - Alex Zabeo
- GreenDecision Srl, Cannaregio 5904, 30121 Venezia, VE, Italy
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Varet J, Barranger A, Crochet C, Huet S, Hogeveen K, Le Hégarat L, Fessard V. New methodological developments for testing the in vitro genotoxicity of nanomaterials: Comparison of 2D and 3D HepaRG liver cell models and classical and high throughput comet assay formats. CHEMOSPHERE 2024; 350:140975. [PMID: 38142884 DOI: 10.1016/j.chemosphere.2023.140975] [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: 10/05/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023]
Abstract
Nanomaterials (NMs) are defined as materials with at least one external dimension below 100 nm. Their small size confers them interesting unique physico-chemical properties, hence NMs are increasingly used in a diversity of applications. However, the specific properties of NMs could also make them more harmful than their bulk counterparts. Therefore, there is a crucial need to deliver efficient NM hazard assessment in order to sustain the responsible development of nanotechnology. This study analysed the genotoxic potential of several NMs: one titanium dioxide (TiO2) and two zinc oxide NMs (ZnO) that were tested up to 100 μg/mL on 2D and 3D hepatic HepaRG models. Genotoxicity analysis was performed comparing the alkaline comet assay in classical and high throughput formats. Moreover, oxidative DNA lesions were investigated with the Fpg-modified comet assay. Results showed that TiO2 NMs were not cytotoxic and not genotoxic in either cell model, although a small increase in the % tail DNA was observed in 3D HepaRG cells at 100 μg/mL in the classical format. The two ZnO NMs (ZnO S. NMs a commercial suspension and NM110 provided by the European Union Joint Research Centre) induced a concentration-dependent increase in cytotoxicity that was more pronounced in the 2D (>20% cytotoxicity was observed for ZnO S. at concentrations greater than 25 μg/mL, and for NM 110 at 50 μg/mL) than in the 3D model (more than 20% cytotoxicity for ZnO S. NMs at 50 μg/mL). While ZnO S. NMs induced DNA damage associated with cytotoxicity (at 25 and 50 μg/mL in 2D and 50 μg/mL in 3D), NM110 showed a clear genotoxic effect at non-cytotoxic concentrations (25 μg/mL in 2D and at 25 and 50 μg/mL in 3D). No major differences could be observed in the comet assay in the presence or absence of the Fpg enzyme. High throughput analysis using CometChip® mostly confirmed the results obtained with the classical format, and even enhanced the detection of genotoxicity in the 3D model. In conclusion, this study demonstrated that new approach methodologies (NAMs), 3D models and the high throughput format for the comet assay, were more efficient in the detection of genotoxic effects, and are therefore promising approaches to improve hazard assessment of NMs.
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Affiliation(s)
- Julia Varet
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France.
| | - Audrey Barranger
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Camille Crochet
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Sylvie Huet
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Kevin Hogeveen
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Ludovic Le Hégarat
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Valérie Fessard
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France.
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Møller P, Roursgaard M. Gastrointestinal tract exposure to particles and DNA damage in animals: A review of studies before, during and after the peak of nanotoxicology. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2024; 793:108491. [PMID: 38522822 DOI: 10.1016/j.mrrev.2024.108491] [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: 01/14/2024] [Revised: 03/08/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Humans ingest particles and fibers on daily basis. Non-digestible carbohydrates are beneficial to health and food additives are considered safe. However, titanium dioxide (E171) has been banned in the European Union because the European Food Safety Authority no longer considers it non-genotoxic. Ingestion of microplastics and nanoplastics are novel exposures; their potential hazardous effects to humans have been under the radar for many years. In this review, we have assessed the association between oral exposure to man-made particles/fibers and genotoxicity in gastrointestinal tract cells and secondary tissues. We identified a total of 137 studies on oral exposure to particles and fibers. This was reduced to 49 papers with sufficient quality and relevance, including exposures to asbestos, diesel exhaust particles, titanium dioxide, silver nanoparticles, zinc oxide, synthetic amorphous silica and certain other nanomaterials. Nineteen studies show positive results, 25 studies show null results, and 5 papers show equivocal results on genotoxicity. Recent studies seem to show null effects, whereas there is a higher proportion of positive genotoxicity results in early studies. Genotoxic effects seem to cluster in studies on diesel exhaust particles and titanium dioxide, whereas studies on silver nanoparticles, zinc oxide and synthetic amorphous silica seem to show mainly null effects. The most widely used genotoxic tests are the alkaline comet assay and micronucleus assay. There are relatively few results on genotoxicity using reliable measurements of oxidatively damaged DNA, DNA double strand breaks (γH2AX assay) and mutations. In general, evidence suggest that oral exposure to particles and fibers is associated with genotoxicity in animals.
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Affiliation(s)
- Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, Copenhagen K DK-1014, Denmark.
| | - Martin Roursgaard
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, Copenhagen K DK-1014, Denmark
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