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Xiao X, Trinh TX, Gerelkhuu Z, Ha E, Yoon TH. Automated machine learning in nanotoxicity assessment: A comparative study of predictive model performance. Comput Struct Biotechnol J 2024; 25:9-19. [PMID: 38414794 PMCID: PMC10899003 DOI: 10.1016/j.csbj.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/24/2024] [Accepted: 02/05/2024] [Indexed: 02/29/2024] Open
Abstract
Computational modeling has earned significant interest as an alternative to animal testing of toxicity assessment. However, the process of selecting an appropriate algorithm and fine-tuning hyperparameters for the developing of optimized models takes considerable time, expertise, and an intensive search. The recent emergence of automated machine learning (autoML) approaches, available as user-friendly platforms, has proven beneficial for individuals with limited knowledge in ML-based predictive model development. These autoML platforms automate crucial steps in model development, including data preprocessing, algorithm selection, and hyperparameter tuning. In this study, we used seven previously published and publicly available datasets for oxides and metals to develop nanotoxicity prediction models. AutoML platforms, namely Vertex AI, Azure, and Dataiku, were employed and performance measures such as accuracy, F1 score, precision, and recall for these autoML-based models were then compared with those of conventional ML-based models. The results demonstrated clearly that the autoML platforms produced more reliable nanotoxicity prediction models, outperforming those built with conventional ML algorithms. While none of the three autoML platforms significantly outperformed the others, distinctions exist among them in terms of the available options for choosing technical features throughout the model development steps. This allows users to select an autoML platform that aligns with their knowledge of predictive model development and its technical features. Additionally, prediction models constructed from datasets with better data quality displayed, enhanced performance than those built from datasets with lower data quality, indicating that future studies with high-quality datasets can further improve the performance of those autoML-based prediction models.
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Affiliation(s)
- Xiao Xiao
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, the Republic of Korea
| | - Tung X Trinh
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, the Republic of Korea
- Institute of Next Generation Material Design, Hanyang University, Seoul 04763, the Republic of Korea
| | - Zayakhuu Gerelkhuu
- Institute of Next Generation Material Design, Hanyang University, Seoul 04763, the Republic of Korea
- Yoon Idea Lab. Co. Ltd, Seoul 04763, the Republic of Korea
| | - Eunyong Ha
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, the Republic of Korea
| | - Tae Hyun Yoon
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, the Republic of Korea
- Institute of Next Generation Material Design, Hanyang University, Seoul 04763, the Republic of Korea
- Yoon Idea Lab. Co. Ltd, Seoul 04763, the Republic of Korea
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2
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Macedo MH, Dias Neto M, Pastrana L, Gonçalves C, Xavier M. Recent Advances in Cell-Based In Vitro Models to Recreate Human Intestinal Inflammation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301391. [PMID: 37736674 PMCID: PMC10625086 DOI: 10.1002/advs.202301391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/03/2023] [Indexed: 09/23/2023]
Abstract
Inflammatory bowel disease causes a major burden to patients and healthcare systems, raising the need to develop effective therapies. Technological advances in cell culture, allied with ethical issues, have propelled in vitro models as essential tools to study disease aetiology, its progression, and possible therapies. Several cell-based in vitro models of intestinal inflammation have been used, varying in their complexity and methodology to induce inflammation. Immortalized cell lines are extensively used due to their long-term survival, in contrast to primary cultures that are short-lived but patient-specific. Recently, organoids and organ-chips have demonstrated great potential by being physiologically more relevant. This review aims to shed light on the intricate nature of intestinal inflammation and cover recent works that report cell-based in vitro models of human intestinal inflammation, encompassing diverse approaches and outcomes.
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Affiliation(s)
- Maria Helena Macedo
- INL – International Iberian Nanotechnology LaboratoryAvenida Mestre José VeigaBraga4715‐330Portugal
| | - Mafalda Dias Neto
- INL – International Iberian Nanotechnology LaboratoryAvenida Mestre José VeigaBraga4715‐330Portugal
| | - Lorenzo Pastrana
- INL – International Iberian Nanotechnology LaboratoryAvenida Mestre José VeigaBraga4715‐330Portugal
| | - Catarina Gonçalves
- INL – International Iberian Nanotechnology LaboratoryAvenida Mestre José VeigaBraga4715‐330Portugal
| | - Miguel Xavier
- INL – International Iberian Nanotechnology LaboratoryAvenida Mestre José VeigaBraga4715‐330Portugal
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3
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Pat Y, Ogulur I, Yazici D, Mitamura Y, Cevhertas L, Küçükkase OC, Mesisser SS, Akdis M, Nadeau K, Akdis CA. Effect of altered human exposome on the skin and mucosal epithelial barrier integrity. Tissue Barriers 2023; 11:2133877. [PMID: 36262078 PMCID: PMC10606824 DOI: 10.1080/21688370.2022.2133877] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/23/2022] [Accepted: 08/27/2022] [Indexed: 10/24/2022] Open
Abstract
Pollution in the world and exposure of humans and nature to toxic substances is continuously worsening at a rapid pace. In the last 60 years, human and domestic animal health has been challenged by continuous exposure to toxic substances and pollutants because of uncontrolled growth, modernization, and industrialization. More than 350,000 new chemicals have been introduced to our lives, mostly without any reasonable control of their health effects and toxicity. A plethora of studies show exposure to these harmful substances during this period with their implications on the skin and mucosal epithelial barrier and increasing prevalence of allergic and autoimmune diseases in the context of the "epithelial barrier hypothesis". Exposure to these substances causes an epithelial injury with peri-epithelial inflammation, microbial dysbiosis and bacterial translocation to sub-epithelial areas, and immune response to dysbiotic bacteria. Here, we provide scientific evidence on the altered human exposome and its impact on epithelial barriers.
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Affiliation(s)
- Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Medical Microbiology, Faculty of Medicine, Aydin Menderes University, Turkey
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Duygu Yazici
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yasutaka Mitamura
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Lacin Cevhertas
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Medical Immunology, Institute of Health Sciences, Bursa Uludag University, Turkey
| | - Ozan C Küçükkase
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Sanne S Mesisser
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Kari Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford University, Stanford, CA, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, CA, USA
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
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4
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Phuangbubpha P, Thara S, Sriboonaied P, Saetan P, Tumnoi W, Charoenpanich A. Optimizing THP-1 Macrophage Culture for an Immune-Responsive Human Intestinal Model. Cells 2023; 12:1427. [PMID: 37408263 DOI: 10.3390/cells12101427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 07/07/2023] Open
Abstract
Previously established immune-responsive co-culture models with macrophages have limitations due to the dedifferentiation of macrophages in long-term cultures. This study is the first report of a long-term (21-day) triple co-culture of THP-1 macrophages (THP-1m) with Caco-2 intestinal epithelial cells and HT-29-methotrexate (MTX) goblet cells. We demonstrated that high-density seeded THP-1 cells treated with 100 ng/mL phorbol 12-myristate 13-acetate for 48 h differentiated stably and could be cultured for up to 21 days. THP-1m were identified by their adherent morphology and lysosome expansion. In the triple co-culture immune-responsive model, cytokine secretions during lipopolysaccharide-induced inflammation were confirmed. Tumor necrosis factor-alpha and interleukin 6 levels were elevated in the inflamed state, reaching 824.7 ± 130.0 pg/mL and 609.7 ± 139.5 pg/mL, respectively. Intestinal membrane integrity was maintained with a transepithelial electrical resistance value of 336.4 ± 18.0 Ω·cm2. Overall, our findings suggest that THP-1m can be effectively employed in models of long-term immune responses in both normal and chronic inflammatory states of the intestinal epithelium, making them a valuable tool for future research on the association between the immune system and gut health.
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Affiliation(s)
- Pornwipa Phuangbubpha
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Sanya Thara
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Patsawee Sriboonaied
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Puretat Saetan
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Wanwiwa Tumnoi
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Adisri Charoenpanich
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
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5
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Cao Y. Nutrient molecule corona: An update for nanomaterial-food component interactions. Toxicology 2022; 476:153253. [PMID: 35811011 DOI: 10.1016/j.tox.2022.153253] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/02/2022] [Accepted: 07/05/2022] [Indexed: 01/07/2023]
Abstract
The adsorption of biological molecules to nanomaterials (NMs) will significantly impact NMs' behavior in complex microenvironments. Previously we proposed the need to consider the interactions between food components and NMs for the evaluation of oral toxicity of NMs. This review updated this concept as nutrient molecule corona, that the adsorption of nutrient molecules alters the uptake of nutrient molecules and/or NMs, as well as the signaling pathways to induce a combined toxicity due to the biologically active nature of nutrient molecules. Even with the presence of protein corona, nutrient molecules may still bind to NMs to change the identities of NMs in vivo. Furthermore, this review proposed the binding of excessive nutrient molecules to NMs to induce a combined toxicity under pathological conditions such as metabolic diseases. The structures of nutrient molecules and physicochemical properties of NMs determine nutrient molecule corona formation, and these aspects should be considered to limit the unwanted effects brought by nutrient molecule corona. In conclusion, similar to other biological molecule corona, the formation of nutrient molecule corona due to the presence of food components or excessive nutrient molecules in pathophysiological microenvironments will alter the behaviors of NMs.
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Affiliation(s)
- Yi Cao
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
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6
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Interactions between Nanoparticles and Intestine. Int J Mol Sci 2022; 23:ijms23084339. [PMID: 35457155 PMCID: PMC9024817 DOI: 10.3390/ijms23084339] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Abstract
The use of nanoparticles (NPs) has surely grown in recent years due to their versatility, with a spectrum of applications that range from nanomedicine to the food industry. Recent research focuses on the development of NPs for the oral administration route rather than the intravenous one, placing the interactions between NPs and the intestine at the centre of the attention. This allows the NPs functionalization to exploit the different characteristics of the digestive tract, such as the different pH, the intestinal mucus layer, or the intestinal absorption capacity. On the other hand, these same characteristics can represent a problem for their complexity, also considering the potential interactions with the food matrix or the microbiota. This review intends to give a comprehensive look into three main branches of NPs delivery through the oral route: the functionalization of NPs drug carriers for systemic targets, with the case of insulin carriers as an example; NPs for the delivery of drugs locally active in the intestine, for the treatment of inflammatory bowel diseases and colon cancer; finally, the potential concerns and side effects of the accidental and uncontrolled exposure to NPs employed as food additives, with focus on E171 (titanium dioxide) and E174 (silver NPs).
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7
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Sousa A, Bradshaw TD, Ribeiro D, Fernandes E, Freitas M. Pro-inflammatory effects of silver nanoparticles in the intestine. Arch Toxicol 2022; 96:1551-1571. [PMID: 35296919 DOI: 10.1007/s00204-022-03270-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/23/2022] [Indexed: 11/26/2022]
Abstract
Nanotechnology is a promising technology of the twenty-first century, being a rapidly evolving field of research and industrial innovation widely applied in our everyday life. Silver nanoparticles (AgNP) are considered the most commercialized nanosystems worldwide, being applied in diverse sectors, from medicine to the food industry. Considering their unique physical, chemical and biological properties, AgNP have gained access into our daily life, with an exponential use in food industry, leading to an increased inevitable human oral exposure. With the growing use of AgNP, several concerns have been raised, in recent years, about their potential hazards to human health, more precisely their pro-inflammatory effects within the gastrointestinal system. Therefore a review of the literature has been undertaken to understand the pro-inflammatory potential of AgNP, after human oral exposure, in the intestine. Despite the paucity of information reported in the literature about this issue, existing studies indicate that AgNP exert a pro-inflammatory action, through generation of oxidative stress, accompanied by mitochondrial dysfunction, interference with transcription factors and production of cytokines. However, further studies are needed to elucidate the mechanistic pathways and molecular targets involved in the intestinal pro-inflammatory effects of AgNP.
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Affiliation(s)
- Adelaide Sousa
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal
| | - Tracey D Bradshaw
- Centre for Biomolecular Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Daniela Ribeiro
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal
- Faculty of Agrarian Sciences and Environment, University of the Azores, 9700-042, Angra do Heroísmo, Açores, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal.
| | - Marisa Freitas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal.
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8
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Kulthong K, Hooiveld GJEJ, Duivenvoorde LPM, Miro Estruch I, Bouwmeester H, van der Zande M. Comparative study of the transcriptomes of Caco-2 cells cultured under dynamic vs. static conditions following exposure to titanium dioxide and zinc oxide nanomaterials. Nanotoxicology 2022; 15:1233-1252. [PMID: 35077654 DOI: 10.1080/17435390.2021.2012609] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Due to the widespread application of food-relevant inorganic nanomaterials, the gastrointestinal tract is potentially exposed to these materials. Gut-on-chip in vitro systems are proposed for the investigation of compound toxicity as they better recapitulate the in vivo human intestinal environment than static models, due to the added shear stresses associated with the flow of the medium. We aimed to compare cellular responses of intestinal epithelial Caco-2 cells at the gene expression level upon TiO2 (E171) and ZnO (NM110) nanomaterial exposure when cultured under dynamic and conventionally applied static conditions. Whole-genome transcriptome analyses upon exposure of the cells to TiO2 and ZnO nanomaterials revealed differentially expressed genes and related biological processes that were culture condition specific. The total number of differentially expressed genes (p < 0.01) and affected pathways (p < 0.05 and FDR < 0.25) after nanomaterial exposure was higher under dynamic culture conditions than under static conditions for both nanomaterials. The observed increase in nanomaterial-induced responses in the gut-on-chip model indicates that shear stress might be a major factor in cell susceptibility. This is the first report on the application of a gut-on-chip system in which gene expression responses upon TiO2 and ZnO nanomaterial exposure are evaluated and compared to a static system. It extends current knowledge on nanomaterial toxicity assessment and the influence of a dynamic environment on cellular responses. Application of the gut-on-chip system resulted in higher sensitivity of the cells and might thus be an attractive system for use in the toxicological hazard characterization of nanomaterials.
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Affiliation(s)
- Kornphimol Kulthong
- Division of Toxicology, Wageningen University, Wageningen, Netherlands.,Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, Netherlands.,National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Guido J E J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| | - Loes P M Duivenvoorde
- Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, Netherlands
| | | | - Hans Bouwmeester
- Division of Toxicology, Wageningen University, Wageningen, Netherlands
| | - Meike van der Zande
- Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, Netherlands
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9
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Bredeck G, Halamoda-Kenzaoui B, Bogni A, Lipsa D, Bremer-Hoffmann S. Tiered testing of micro- and nanoplastics using intestinal in vitro models to support hazard assessments. ENVIRONMENT INTERNATIONAL 2022; 158:106921. [PMID: 34634620 DOI: 10.1016/j.envint.2021.106921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
The uncertainty of potential risks associated with micro- and nanoplastics (MNPs) are of growing public concern. However, the diversity of MNPs in the environment makes a systematic analysis of potential health effects challenging. New tools and approaches are necessary to investigate biological effects of MNPs. With this quick scoping review, we aim to analyse the suitability of in vitro models for assessing the interaction of MNPs with intestinal cells. Our analysis revealed that currently the majority of in vitro tests are based on the three cell lines Caco-2, HT-29, and HCT-116. They have particularly been used to assess endpoints related to basal cytotoxicity, the internalisation of MNPs and effects on the intestinal barrier. When co-cultured with various cell lines, they also allow to investigate additional effects such as inflammation, metabolic actions and the relevance of the intestinal mucus. However, methodological gaps remain regarding the assessment of a potential accumulation of MNPs, leaching of additives/impurities and in resulting long-term effects as well as cell-type specific toxicities. In addition, only few in vitro studies investigated effects of MNPs on the microbiome. Stem cell-based assays using, for example, the emerging organoid technology are promising for analysing MNP effects on tissue-like structures, while avoiding the particular characteristics of the currently used cancer derived cell lines. The various cell lines and culture techniques can be combined in testing strategies, to better elucidate potential biological interaction of MNPs with biological systems. We suggest to implement a tiered testing strategy, in which monocultures can serve as a tool for high-throughput testing of MNPs. In the next steps co-cultures can be used to assess the potential of a systemic uptake of MNPs and organ-on-a-chip models will provide more reliable insights into relevant doses triggering biological effects. Finally, organoids can help to discover new and more complex reactions initiated by MNPs.
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Affiliation(s)
- Gerrit Bredeck
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | | | - Alessia Bogni
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Dorelia Lipsa
- European Commission, Joint Research Centre (JRC), Ispra, Italy
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10
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Busch M, Kämpfer AAM, Schins RPF. An inverted in vitro triple culture model of the healthy and inflamed intestine: Adverse effects of polyethylene particles. CHEMOSPHERE 2021; 284:131345. [PMID: 34216924 DOI: 10.1016/j.chemosphere.2021.131345] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/01/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
As environmental pollution with plastic waste is increasing, numerous reports show the contamination of natural habitats, food and drinking water with plastic particles in the micro- and nanometer range. Since oral exposure to these particles is virtually unavoidable, health concerns towards the general population have been expressed and risk assessment regarding ingested plastic particles is of great interest. To study the intestinal effects of polymeric particles with a density of <1 g/cm³ in vitro, we spatially inverted a triple culture transwell model of the healthy and inflamed intestine (Caco-2/HT29-MTX-E12/THP-1), which allows contact between buoyant particles and cells. We validated the inverted model against the original model using the enterotoxic, non-steroidal anti-inflammatory drug diclofenac and subsequently assessed the cytotoxic and pro-inflammatory effects of polyethylene (PE) microparticles. The results show that the inverted model exhibits the same distinct features as the original model in terms of barrier development and inflammatory parameters. Treatment with 2 mM diclofenac causes severe cytotoxicity, DNA damage and complete barrier disruption in both models. PE particles induced cytotoxicity and pro-inflammatory effects in the inverted model, which would have remained undetected in conventional in vitro approaches, as no effect was observed in non-inverted control cultures.
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Affiliation(s)
- Mathias Busch
- IUF - Leibniz-Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Angela A M Kämpfer
- IUF - Leibniz-Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Roel P F Schins
- IUF - Leibniz-Research Institute for Environmental Medicine, Duesseldorf, Germany.
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11
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Gulumian M, Cassee FR. Safe by design (SbD) and nanotechnology: a much-discussed topic with a prudence? Part Fibre Toxicol 2021; 18:32. [PMID: 34425830 PMCID: PMC8381576 DOI: 10.1186/s12989-021-00423-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Safe-by-Design (SbD) has been put forward as a concept to assure that only safe nanomaterials will reach the market and that safety aspects have already been considered in a very early stage of the innovation process. In practice, several laboratory test have been proposed to screen newly developed nanomaterials and nano-enabled products to assess their hazardous nature. These tests need to have sufficient predictive power for possible adverse effects on human health, not only due to acute (peak) exposures, but also for long-term (low dose) exposures as these materials may accumulate over time in organs and tissues.
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Affiliation(s)
- Mary Gulumian
- National Institute for Occupational Health, Johannesburg, South Africa.,University of the Witwatersrand, Johannesburg, South Africa.,Water research group, Northwest University, Potchefstroom, South Africa
| | - Flemming R Cassee
- National Institute for Public Health and the Environment, PObox 1, 3720, BA, Bilthoven, the Netherlands. .,Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
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12
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Hartwig O, Shetab Boushehri MA, Shalaby KS, Loretz B, Lamprecht A, Lehr CM. Drug delivery to the inflamed intestinal mucosa - targeting technologies and human cell culture models for better therapies of IBD. Adv Drug Deliv Rev 2021; 175:113828. [PMID: 34157320 DOI: 10.1016/j.addr.2021.113828] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022]
Abstract
Current treatment strategies for inflammatory bowel disease (IBD) seek to alleviate the undesirable symptoms of the disorder. Despite the higher specificity of newer generation therapeutics, e.g. monoclonal antibodies, adverse effects still arise from their interference with non-specific systemic immune cascades. To circumvent such undesirable effects, both conventional and newer therapeutic options can benefit from various targeting strategies. Of course, both the development and the assessment of the efficiency of such targeted delivery systems necessitate the use of suitable in vivo and in vitro models representing relevant pathophysiological manifestations of the disorder. Accordingly, the current review seeks to provide a comprehensive discussion of the available preclinical models with emphasis on human in vitro models of IBD, along with their potentials and limitations. This is followed by an elaboration on the advancements in the field of biology- and nanotechnology-based targeted drug delivery systems and the potential rooms for improvement to facilitate their clinical translation.
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Affiliation(s)
- Olga Hartwig
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| | | | - Karim S Shalaby
- Department of Pharmaceutics, University of Bonn, D-53121 Bonn, Germany; Department of Pharmaceutics and Industrial Pharmacy, Ain Shams University, Cairo, Egypt
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany
| | - Alf Lamprecht
- Department of Pharmaceutics, University of Bonn, D-53121 Bonn, Germany.
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany.
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13
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Braun NJ, Galaska RM, Jewett ME, Krupa KA. Implementation of a Dynamic Co-Culture Model Abated Silver Nanoparticle Interactions and Nanotoxicological Outcomes In Vitro. NANOMATERIALS 2021; 11:nano11071807. [PMID: 34361193 PMCID: PMC8308404 DOI: 10.3390/nano11071807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 12/21/2022]
Abstract
The incorporation of engineered nanoparticles (NPs) into everyday consumer goods, products, and applications has given rise to the field of nanotoxicology, which evaluates the safety of NPs within biological environments. The unique physicochemical properties of NPs have made this an insurmountable challenge, as their reactivity and variable behavior have given rise to discrepancies between standard cell-based in vitro and animal in vivo models. In this study, enhanced in vitro models were generated that retained the advantages of traditional cell cultures, but incorporated the modifications of (1) inclusion of an activated immune element and (2) the presence of physiologically-relevant dynamic flow. Following verification that the human alveolar epithelial and macrophage (A549/U937) co-culture could be successfully sustained under both static and dynamic conditions, these cultures, in addition to a standard A549 static model, were challenged with 10 nm citrate coated silver NPs (AgNPs). This work identified a reshaping of the AgNP-cellular interface and differential biological responses following exposure. The presence of dynamic flow modified cellular morphology and reduced AgNP deposition by approximately 20% over the static exposure environments. Cellular toxicity and stress endpoints, including reactive oxygen species, heat shock protein 70, and secretion of pro-inflammatory cytokines, were found to vary as a function of both cellular composition and flow conditions; with activated macrophages and fluid flow both mitigating the severity of AgNP-dependent bioeffects. This work highlights the possibility of enhanced in vitro systems to assess the safety of engineered NPs and demonstrates their effectiveness in elucidating novel NP-cellular interactions and toxicological profiles.
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Affiliation(s)
- Nicholas J. Braun
- Molecular Bioeffects Branch, Human Effectiveness Directorate, Wright Patterson Air Force Base, Dayton, OH 45433, USA;
| | - Rachel M. Galaska
- Department of Chemical and Materials Engineering, University of Dayton, Dayton, OH 45469-0256, USA; (R.M.G.); (M.E.J.)
| | - Maggie E. Jewett
- Department of Chemical and Materials Engineering, University of Dayton, Dayton, OH 45469-0256, USA; (R.M.G.); (M.E.J.)
| | - Kristen A. Krupa
- Department of Chemical and Materials Engineering, University of Dayton, Dayton, OH 45469-0256, USA; (R.M.G.); (M.E.J.)
- Correspondence: ; Tel.: +1-937-229-2627
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14
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Kohl Y, Hesler M, Drexel R, Kovar L, Dähnhardt-Pfeiffer S, Selzer D, Wagner S, Lehr T, von Briesen H, Meier F. Influence of Physicochemical Characteristics and Stability of Gold and Silver Nanoparticles on Biological Effects and Translocation across an Intestinal Barrier-A Case Study from In Vitro to In Silico. NANOMATERIALS 2021; 11:nano11061358. [PMID: 34063963 PMCID: PMC8224057 DOI: 10.3390/nano11061358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/09/2021] [Accepted: 05/13/2021] [Indexed: 11/27/2022]
Abstract
A better understanding of their interaction with cell-based tissue is a fundamental prerequisite towards the safe production and application of engineered nanomaterials. Quantitative experimental data on the correlation between physicochemical characteristics and the interaction and transport of engineered nanomaterials across biological barriers, in particular, is still scarce, thus hampering the development of effective predictive non-testing strategies. Against this background, the presented study investigated the translocation of gold and silver nanoparticles across the gastrointestinal barrier along with related biological effects using an in vitro 3D-triple co-culture cell model. Standardized in vitro assays and quantitative polymerase chain reaction showed no significant influence of the applied nanoparticles on both cell viability and generation of reactive oxygen species. Transmission electron microscopy indicated an intact cell barrier during the translocation study. Single particle ICP-MS revealed a time-dependent increase of translocated nanoparticles independent of their size, shape, surface charge, and stability in cell culture medium. This quantitative data provided the experimental basis for the successful mathematical description of the nanoparticle transport kinetics using a non-linear mixed effects modeling approach. The results of this study may serve as a basis for the development of predictive tools for improved risk assessment of engineered nanomaterials in the future.
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Affiliation(s)
- Yvonne Kohl
- Fraunhofer Institute for Biomedical Engineering IBMT, 66280 Sulzbach, Germany; (M.H.); (S.W.); (H.v.B.)
- Correspondence: (Y.K.); (F.M.); Tel.: +49-6897-9071-256 (Y.K.); +49-8191-985-6880 (F.M.)
| | - Michelle Hesler
- Fraunhofer Institute for Biomedical Engineering IBMT, 66280 Sulzbach, Germany; (M.H.); (S.W.); (H.v.B.)
| | - Roland Drexel
- Postnova Analytics GmbH, 86899 Landsberg am Lech, Germany;
| | - Lukas Kovar
- Department of Clinical Pharmacy, Saarland University, 66123 Saarbrücken, Germany; (L.K.); (D.S.); (T.L.)
| | | | - Dominik Selzer
- Department of Clinical Pharmacy, Saarland University, 66123 Saarbrücken, Germany; (L.K.); (D.S.); (T.L.)
| | - Sylvia Wagner
- Fraunhofer Institute for Biomedical Engineering IBMT, 66280 Sulzbach, Germany; (M.H.); (S.W.); (H.v.B.)
| | - Thorsten Lehr
- Department of Clinical Pharmacy, Saarland University, 66123 Saarbrücken, Germany; (L.K.); (D.S.); (T.L.)
| | - Hagen von Briesen
- Fraunhofer Institute for Biomedical Engineering IBMT, 66280 Sulzbach, Germany; (M.H.); (S.W.); (H.v.B.)
| | - Florian Meier
- Postnova Analytics GmbH, 86899 Landsberg am Lech, Germany;
- Correspondence: (Y.K.); (F.M.); Tel.: +49-6897-9071-256 (Y.K.); +49-8191-985-6880 (F.M.)
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15
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Taboada-López MV, Leal-Martínez BH, Domínguez-González R, Bermejo-Barrera P, Taboada-Antelo P, Moreda-Piñeiro A. Caco-2 in vitro model of human gastrointestinal tract for studying the absorption of titanium dioxide and silver nanoparticles from seafood. Talanta 2021; 233:122494. [PMID: 34215112 DOI: 10.1016/j.talanta.2021.122494] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/27/2021] [Accepted: 04/30/2021] [Indexed: 11/27/2022]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are widely used in industry as a white pigment (paints, paper industry and toothpastes), photocatalysts (environmental decontamination and photovoltaic cells), inorganic UV filter (sunscreens and personal care products) and as a food additive (E171) and antimicrobial food packaging material. Silver nanoparticles (Ag NPs) are used in photonics, microelectronics, catalysis and medicine due to their catalytic activity, magnetic and optical polarizability, electrical and thermal conductivities and enhanced Raman scattering. They also have antibacterial, antifungal and antiviral activities, as well as anti-inflammatory potential. The huge increase in the use of nano-based products, mainly metallic NPs, implies the presence of nanomaterials in the environment, and hence, the unintentional human ingestion through water or foods (gastrointestinal tract is the main pathway of NPs intake in humans). The presence of TiO2 NPs and Ag NPs in seafood samples was firstly established using an ultrasound assisted enzymatic hydrolysis procedure and sp-ICP-MS analysis. Several clams, cockles, mussels, razor clams, oysters and variegated scallops, which contain TiO2 NPs and Ag NPs, were subjected to an in vitro digestion process simulating human gastrointestinal digestion in the stomach and in the small and large intestine to determine the bioaccessibility of these NPs. Caco-2 cells were selected as model of human intestinal epithelium for transport studies because of the development of membrane transporters that are responsible for the uptake of chemicals. Parameters as transepithelial electrical resistance (TEER) and permeability of Lucifer Yellow were studied for establishing cell monolayer integrity. TiO2 NPs and Ag NPs transport as well as total Ti and Ag concentrations passing through the gastrointestinal epithelial barrier model (0-2 h) were assessed by sp-ICP-MS and ICP-MS in several molluscs.
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Affiliation(s)
- María Vanesa Taboada-López
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida Das Ciencias, S/n. E15782, Santiago de Compostela, Spain
| | - Baltazar Hiram Leal-Martínez
- Colloids and Polymer Physics Group, Strategic Grouping in Materials (AEMAT), Department of Particle Physics, Faculty of Physics, Universidade de Santiago de Compostela, Rúa Xosé María Suárez Núñez, S/n. E15782, Santiago de Compostela, Spain
| | - Raquel Domínguez-González
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida Das Ciencias, S/n. E15782, Santiago de Compostela, Spain
| | - Pilar Bermejo-Barrera
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida Das Ciencias, S/n. E15782, Santiago de Compostela, Spain
| | - Pablo Taboada-Antelo
- Colloids and Polymer Physics Group, Strategic Grouping in Materials (AEMAT), Department of Particle Physics, Faculty of Physics, Universidade de Santiago de Compostela, Rúa Xosé María Suárez Núñez, S/n. E15782, Santiago de Compostela, Spain
| | - Antonio Moreda-Piñeiro
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida Das Ciencias, S/n. E15782, Santiago de Compostela, Spain.
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16
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Llewellyn SV, Kämpfer A, Keller JG, Vilsmeier K, Büttner V, Ag Seleci D, Schins RPF, Doak SH, Wohlleben W. Simulating Nanomaterial Transformation in Cascaded Biological Compartments to Enhance the Physiological Relevance of In Vitro Dosing Regimes: Optional or Required? SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004630. [PMID: 33475244 DOI: 10.1002/smll.202004630] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/09/2020] [Indexed: 06/12/2023]
Abstract
Would an engineered nanomaterial (ENM) still have the same identity once it reaches a secondary target tissue after a journey through several physiological compartments? Probably not. Does it matter? ENM pre-treatments may enhance the physiological relevance of in vitro testing via controlled transformation of the ENM identity. The implications of material transformation upon reactivity, cytotoxicity, inflammatory, and genotoxic potential of Ag and SiO2 ENM on advanced gastro-intestinal tract cell cultures and 3D liver spheroids are demonstrated. Pre-treatments are recommended for certain ENM only.
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Affiliation(s)
- Samantha V Llewellyn
- In vitro Toxicology Group, Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Angela Kämpfer
- IUF-Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Johannes G Keller
- Advanced Materials Research, Department of Material Physics and Analytics and Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, 67056, Germany
| | - Klaus Vilsmeier
- Advanced Materials Research, Department of Material Physics and Analytics and Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, 67056, Germany
| | - Veronika Büttner
- IUF-Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Didem Ag Seleci
- Advanced Materials Research, Department of Material Physics and Analytics and Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, 67056, Germany
| | - Roel P F Schins
- IUF-Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Shareen H Doak
- In vitro Toxicology Group, Institute of Life Science, Swansea University Medical School, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK
| | - Wendel Wohlleben
- Advanced Materials Research, Department of Material Physics and Analytics and Department of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen, 67056, Germany
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17
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Kämpfer AAM, Busch M, Büttner V, Bredeck G, Stahlmecke B, Hellack B, Masson I, Sofranko A, Albrecht C, Schins RPF. Model Complexity as Determining Factor for In Vitro Nanosafety Studies: Effects of Silver and Titanium Dioxide Nanomaterials in Intestinal Models. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004223. [PMID: 33458953 DOI: 10.1002/smll.202004223] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/21/2020] [Indexed: 06/12/2023]
Abstract
With the rising interest in the effects of orally ingested engineered nanomaterials (ENMs), much effort is undertaken to develop and advance intestinal in vitro models. The cytotoxic, proinflammatory, and DNA damaging properties of polyvinylpyrrolidone-capped silver (Ag-PVP) and titanium dioxide (TiO2 , P25) ENM in four in vitro models of increasing complexity-from proliferating Caco-2 and HT29-MTX-E12 monocultures to long-term transwell triple cultures including THP-1 macrophages to reproduce the human intestine in healthy versus inflamed-like state-are studied. Results are compared against in vivo effects of the same ENM through intestinal tissue analysis from 28-day oral exposure studies in mice. Adverse responses are only observed in monocultures and suggest toxic potential for both ENM, typically showing stronger effects for Ag-PVP than for TiO2 . By contrast, no adverse effects are observed in either the transwell cultures or the analyzed murine tissues. The data provide further support that monoculture models represent a cost and time efficient tool for early-phase hazard assessment. However, the observed similarities in morphology and ENM effects in murine intestinal tissue and the in vitro triple culture model suggest that advanced multifacetted research questions concerning oral ENM exposure are more adequately addressed by the more complex and time intensive models.
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Affiliation(s)
- Angela A M Kämpfer
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Mathias Busch
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Veronika Büttner
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Gerrit Bredeck
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Burkhard Stahlmecke
- IUTA - Institute of Energy and Environmental Technology, Bliersheimer Str. 58-60, Duisburg, 47229, Germany
| | - Bryan Hellack
- IUTA - Institute of Energy and Environmental Technology, Bliersheimer Str. 58-60, Duisburg, 47229, Germany
- UBA - German Environment Agency, Paul-Ehrlich-Str. 29, Langen, 63225, Germany
| | - Isabelle Masson
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Adriana Sofranko
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Catrin Albrecht
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
| | - Roel P F Schins
- IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, Düsseldorf, 40225, Germany
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18
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Busch M, Bredeck G, Kämpfer AAM, Schins RPF. Investigations of acute effects of polystyrene and polyvinyl chloride micro- and nanoplastics in an advanced in vitro triple culture model of the healthy and inflamed intestine. ENVIRONMENTAL RESEARCH 2021; 193:110536. [PMID: 33253701 DOI: 10.1016/j.envres.2020.110536] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
The continuous degradation of plastic waste in the environment leads to the generation of micro- and nanoplastic fragments and particles. Due to the ubiquitous presence of plastic particles in natural habitats as well as in food, beverages and tap water, oral exposure of the human population with plastic particles occurs worldwide. We investigated acute toxicological effects of polystyrene (PS) and polyvinyl chloride (PVC) micro- and nanoparticles in an advanced in vitro triple culture model (Caco-2/HT29-MTX-E12/THP-1) mimicking the healthy and inflamed human intestine to study the effect of inflammatory processes on plastic particle toxicity. We monitored barrier integrity, cytotoxicity, cell layer integrity, DNA damage, the release of pro-inflammatory cytokines (IL-1β, IL-6, IL-8 and TNF-α) and mucus distribution after 24 h of particle exposure. In addition, we investigated cytotoxicity, DNA damage and IL-1β release in monocultures of the three cell lines. Amine-modified polystyrene nanoparticles (PS-NH2) served as a positive control for particle-induced toxicity. No acute effects in the investigated endpoints were observed in the model of the healthy intestine after PS or PVC exposure. However, during active inflammatory processes, exposure to PVC particles was found to augment the release of IL-1β and to cause a loss of epithelial cells. Our results suggest that prevalent intestinal inflammation might be an important factor to consider when assessing the hazard of ingested micro- and nanoplastic particles.
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Affiliation(s)
- Mathias Busch
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Düsseldorf, Germany
| | - Gerrit Bredeck
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Düsseldorf, Germany
| | - Angela A M Kämpfer
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Düsseldorf, Germany
| | - Roel P F Schins
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Düsseldorf, Germany.
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19
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Weindl G. Immunocompetent Human Intestinal Models in Preclinical Drug Development. Handb Exp Pharmacol 2020; 265:219-233. [PMID: 33349897 DOI: 10.1007/164_2020_429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The intestinal epithelial barrier, together with the microbiome and local immune system, is a critical component that maintains intestinal homeostasis. Dysfunction may lead to chronic inflammation, as observed in inflammatory bowel diseases. Animal models have historically been used in preclinical research to identify and validate new drug targets in intestinal inflammatory diseases. Yet, limitations about their biological relevance to humans and advances in tissue engineering have forced the development of more complex three-dimensional reconstructed intestinal epithelium. By introducing immune and commensal microbial cells, these models more accurately mimic the gut's physiology and the pathophysiological changes occurring in vivo in the inflamed intestine. Specific advantages and limitations of two-dimensional (2D) and three-dimensional (3D) intestinal models such as coculture systems, organoids, and microfluidic devices to study inflammatory and immune-related responses are highlighted. While current cell culture models lack the cellular and molecular complexity observed in vivo, the emphasis is put on how these models can be used to improve preclinical drug development for inflammatory diseases of the intestine.
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Affiliation(s)
- Günther Weindl
- Pharmacology and Toxicology Section, Pharmaceutical Institute, University of Bonn, Bonn, Germany.
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20
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Cao Y, Li S, Chen J. Modeling better in vitro models for the prediction of nanoparticle toxicity: a review. Toxicol Mech Methods 2020; 31:1-17. [DOI: 10.1080/15376516.2020.1828521] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yi Cao
- Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan, P. R. China
| | - Shuang Li
- Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan, P. R. China
| | - Jiamao Chen
- Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan, P. R. China
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21
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Susceptibility Factors in Chronic Lung Inflammatory Responses to Engineered Nanomaterials. Int J Mol Sci 2020; 21:ijms21197310. [PMID: 33022979 PMCID: PMC7582686 DOI: 10.3390/ijms21197310] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/15/2020] [Accepted: 09/29/2020] [Indexed: 12/26/2022] Open
Abstract
Engineered nanomaterials (ENMs) are products of the emerging nanotechnology industry and many different types of ENMs have been shown to cause chronic inflammation in the lungs of rodents after inhalation exposure, suggesting a risk to human health. Due to the increasing demand and use of ENMs in a variety of products, a careful evaluation of the risks to human health is urgently needed. An assessment of the immunotoxicity of ENMs should consider susceptibility factors including sex, pre-existing diseases, deficiency of specific genes encoding proteins involved in the innate or adaptive immune response, and co-exposures to other chemicals. This review will address evidence from experimental animal models that highlights some important issues of susceptibility to chronic lung inflammation and systemic immune dysfunction after pulmonary exposure to ENMs.
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22
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Adapted nano-carriers for gastrointestinal defense components: surface strategies and challenges. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 29:102277. [DOI: 10.1016/j.nano.2020.102277] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/18/2020] [Accepted: 07/18/2020] [Indexed: 12/21/2022]
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23
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Zorraquín-Peña I, Cueva C, González de Llano D, Bartolomé B, Moreno-Arribas MV. Glutathione-Stabilized Silver Nanoparticles: Antibacterial Activity against Periodontal Bacteria, and Cytotoxicity and Inflammatory Response in Oral Cells. Biomedicines 2020; 8:E375. [PMID: 32977686 PMCID: PMC7598685 DOI: 10.3390/biomedicines8100375] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/10/2020] [Accepted: 09/22/2020] [Indexed: 12/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) have been proposed as new alternatives to limit bacterial dental plaque because of their antimicrobial activity. Novel glutathione-stabilized silver nanoparticles (GSH-AgNPs) have proven powerful antibacterial properties in food manufacturing processes. Therefore, this study aimed to evaluate the potentiality of GSH-AgNPs for the prevention/treatment of oral infectious diseases. First, the antimicrobial activity of GSH-AgNPs against three oral pathogens (Porphyromonas gingivalis, Fusobacterium nucleatum, and Streptococcus mutans) was evaluated. Results demonstrated the efficiency of GSH-AgNPs in inhibiting the growth of all bacteria, especially S. mutans (IC50 = 23.64 μg/mL, Ag concentration). Second, GSH-AgNPs were assayed for their cytotoxicity (i.e., cell viability) toward a human gingival fibroblast cell line (HGF-1), as an oral epithelial model. Results indicated no toxic effects of GSH-AgNPs at low concentrations (≤6.16 µg/mL, Ag concentration). Higher concentrations resulted in losing cell viability, which followed the Ag accumulation in cells. Finally, the inflammatory response in the HGF-1 cells after their exposure to GSH-AgNPs was measured as the production of immune markers (interleukins 6 and 8 (IL-6 and IL-8) and tumor necrosis factor-alpha (TNF-α)). GSH-AgNPs activates the inflammatory response in human gingival fibroblasts, increasing the production of cytokines. These findings provide new insights for the use of GSH-AgNPs in dental care and encourage further studies for their application.
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Affiliation(s)
| | | | | | | | - M. Victoria Moreno-Arribas
- Institute of Food Science Research (CIAL), CSIC-UAM, C/Nicolás Cabrera, 9, Campus de Cantoblanco, 28049 Madrid, Spain; (I.Z.-P.); (C.C.); (D.G.d.L.); (B.B.)
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24
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Kämpfer AAM, Busch M, Schins RPF. Advanced In Vitro Testing Strategies and Models of the Intestine for Nanosafety Research. Chem Res Toxicol 2020; 33:1163-1178. [PMID: 32383381 DOI: 10.1021/acs.chemrestox.0c00079] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
There is growing concern about the potential adverse effects of oral exposure to engineered nanomaterials (ENM). Recent years have witnessed major developments in and advancement of intestinal in vitro models for nanosafety evaluation. The present paper reviews the key factors that should be considered for inclusion in nonanimal alternative testing approaches to reliably reflect the in vivo dynamics of the physicochemical properties of ENM as well the intestinal physiology and morphology. Currently available models range from simple cell line-based monocultures to advanced 3D systems and organoids. In addition, in vitro approaches exist to replicate the mucous barrier, digestive processes, luminal flow, peristalsis, and interactions of ENM with the intestinal microbiota. However, while the inclusion of a multitude of individual factors/components of particle (pre)treatment, exposure approach, and cell model approximates in vivo-like conditions, such increasing complexity inevitably affects the system's robustness and reproducibility. The selection of the individual modules to build the in vitro testing strategy should be driven and justified by the specific purpose of the study and, not least, the intended or actual application of the investigated ENM. Studies that address health hazards of ingested ENM likely require different approaches than research efforts to unravel the fundamental interactions or toxicity mechanisms of ENM in the intestine. Advanced reliable and robust in vitro models of the intestine, especially when combined in an integrated testing approach, offer great potential to further improve the field of nanosafety research.
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Affiliation(s)
- Angela A M Kämpfer
- Leibniz Research Institute for Environmental Medicine, IUF, 40225 Düsseldorf, Germany
| | - Mathias Busch
- Leibniz Research Institute for Environmental Medicine, IUF, 40225 Düsseldorf, Germany
| | - Roel P F Schins
- Leibniz Research Institute for Environmental Medicine, IUF, 40225 Düsseldorf, Germany
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