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Han R, He H, Lu Y, Lu H, Shen S, Wu W. Oral targeted drug delivery to post-gastrointestinal sites. J Control Release 2024; 370:256-276. [PMID: 38679163 DOI: 10.1016/j.jconrel.2024.04.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/21/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
As an essential branch of targeted drug delivery, oral targeted delivery is attracting growing attention in recent years. In addition to site-specific delivery for the treatment of locoregional diseases in the gastrointestinal tract (GIT), oral targeted delivery to remote sites beyond the GIT emerges as a cutting-edge research topic. This review aims to provide an overview of the fundamental concepts and most recent advances in this field. Owing to the physiological barriers existing in the GIT, carrier systems should be transported across the enteric epithelia to target remote sites. Recently, pioneer investigations have validated the transport of intact micro- or nanocarriers across gastrointestinal barriers and subsequently to various distal organs and tissues. The microfold (M) cell pathway is the leading mechanism underlying the oral absorption of particulates, but the contribution of the transcellular and paracellular pathways should not be neglected either. In addition to well-acknowledged physicochemical and biological factors, the formation of a protein corona may also influence the biological fate of carrier systems. Although in an early stage of conceptualization, oral targeted delivery to remote diseases has demonstrated promising potential for the treatment of inflammation, tumors, and diseases inflicting the lymphatic and mononuclear phagocytosis systems.
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Affiliation(s)
- Rongze Han
- Key Laboratory of Smart Drug Delivery of MOE, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Haisheng He
- Key Laboratory of Smart Drug Delivery of MOE, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yi Lu
- Key Laboratory of Smart Drug Delivery of MOE, School of Pharmacy, Fudan University, Shanghai 201203, China; Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai 200443, China; Fudan Zhangjiang Institute, Shanghai 201203, China
| | - Huiping Lu
- Pharmacy Department and Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
| | - Shun Shen
- Pharmacy Department and Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China.
| | - Wei Wu
- Key Laboratory of Smart Drug Delivery of MOE, School of Pharmacy, Fudan University, Shanghai 201203, China; Pharmacy Department and Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China; Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai 200443, China; Fudan Zhangjiang Institute, Shanghai 201203, China.
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2
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Ben-Jeddou K, Bakir M, Jiménez MS, Gómez MT, Abad-Álvaro I, Laborda F. Nanosilver-based materials as feed additives: Evaluation of their transformations along in vitro gastrointestinal digestion in pigs and chickens by using an ICP-MS based analytical platform. Anal Bioanal Chem 2024:10.1007/s00216-024-05323-8. [PMID: 38777876 DOI: 10.1007/s00216-024-05323-8] [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: 03/07/2024] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024]
Abstract
The use of a new nanomaterial in the feed chain requires a risk assessment that involves in vitro gastrointestinal digestions to predict its degradation and oral exposure to nanoparticles. In this study, a nanosilver-based material was incorporated into pig and chicken feed as a growth-promoting additive and subjected to the corresponding in vitro gastrointestinal digestions. An inductively coupled plasma mass spectroscopy (ICP-MS) analytical platform was used to obtain information about the silver released in the different digestion phases. It included conventional ICP-MS for total silver determination, but also single particle ICP-MS and coupling to hydrodynamic chromatography for detection of dissolved and particulate silver. The bioaccessible fraction in the intestinal phase accounted for 8-13% of the total silver, mainly in the form of dissolved Ag(I) species, with less than 0.1% as silver-containing particles. Despite the additive behaving differently in pig and chicken digestions, the feed matrix played a relevant role in the fate of the silver.
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Affiliation(s)
- Khaoula Ben-Jeddou
- Group of Analytical Spectroscopy and Sensors (GEAS), Institute of Environmental Sciences (IUCA), University of Zaragoza, Pedro Cerbuna 12, 50009, Saragossa, Spain
| | - Mariam Bakir
- Group of Analytical Spectroscopy and Sensors (GEAS), Institute of Environmental Sciences (IUCA), University of Zaragoza, Pedro Cerbuna 12, 50009, Saragossa, Spain
| | - María S Jiménez
- Group of Analytical Spectroscopy and Sensors (GEAS), Institute of Environmental Sciences (IUCA), University of Zaragoza, Pedro Cerbuna 12, 50009, Saragossa, Spain.
| | - María T Gómez
- Group of Analytical Spectroscopy and Sensors (GEAS), Institute of Environmental Sciences (IUCA), University of Zaragoza, Pedro Cerbuna 12, 50009, Saragossa, Spain
| | - Isabel Abad-Álvaro
- Group of Analytical Spectroscopy and Sensors (GEAS), Institute of Environmental Sciences (IUCA), University of Zaragoza, Pedro Cerbuna 12, 50009, Saragossa, Spain
| | - Francisco Laborda
- Group of Analytical Spectroscopy and Sensors (GEAS), Institute of Environmental Sciences (IUCA), University of Zaragoza, Pedro Cerbuna 12, 50009, Saragossa, Spain
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3
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Gajdosechova Z, Loeschner K. Nanoparticles as a younger member of the trace element species family - a food perspective. Anal Bioanal Chem 2024; 416:2585-2594. [PMID: 37709980 PMCID: PMC11009757 DOI: 10.1007/s00216-023-04940-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/16/2023]
Abstract
Speciation analysis plays a key role in understanding the biological activity and toxicity of an element. So far, classical speciation analysis focused only on the dissolved fraction of an elemental species, whereas nanoparticle forms of analytes are being widely found in consumer and industrial products. A significant contributor to human exposure to nanoparticles is through food into which nanoparticles can be incorporated from endogenous sources or they may be formed naturally in the living organisms. Nanoparticles often undergo changes in the food matrices and upon consumption, in the gastrointestinal tract, which present a significant challenge to their characterisation. Therefore, a combination of both classical and nanoparticle speciation analytical techniques is needed for the characterisation of both dissolved and particulate forms of the chemical species. This article presents and discusses the current trends in analysis of nanoparticle behaviour in the gastrointestinal tract and formation and characterisation of biogenic nanoparticles.
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Affiliation(s)
- Zuzana Gajdosechova
- National Research Council Canada, Metrology, 1200 Montreal Road, Ottawa, ON, K1A 0R6, Canada
| | - Katrin Loeschner
- Technical University of Denmark, National Food Institute, Kemitorvet 201, 2800, Kgs. Lyngby, Denmark.
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4
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Grodzicki W, Dziendzikowska K, Gromadzka-Ostrowska J, Wilczak J, Oczkowski M, Kopiasz Ł, Sapierzyński R, Kruszewski M, Grzelak A. In Vivo Pro-Inflammatory Effects of Silver Nanoparticles on the Colon Depend on Time and Route of Exposure. Int J Mol Sci 2024; 25:4879. [PMID: 38732098 PMCID: PMC11084194 DOI: 10.3390/ijms25094879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Nanosilver is a popular nanomaterial, the potential influence of which on humans is of serious concern. Herein, we exposed male Wistar rats to two regimens: a repeated oral dose of 30 mg/kg bw silver nanoparticles (AgNPs) over 28 days and a single-dose injection of 5 mg/kg bw of AgNPs. At three different time points, we assessed antioxidant defense, oxidative stress and inflammatory parameters in the colon, as well as toxicity markers in the liver and plasma. Both experimental scenarios showed increased oxidative stress and inflammation in the colon. Oral administration seemed to be linked to increased reactive oxygen species generation and lipid peroxidation, while the effects induced by the intravenous exposure were probably mediated by silver ions released from the AgNPs. Repeated oral exposure had a more detrimental effect than the single-dose injection. In conclusion, both administration routes had a similar impact on the colon, although the underlying mechanisms are likely different.
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Affiliation(s)
- Wojciech Grodzicki
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.); (M.O.); (Ł.K.)
| | - Katarzyna Dziendzikowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.); (M.O.); (Ł.K.)
| | - Joanna Gromadzka-Ostrowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.); (M.O.); (Ł.K.)
| | - Jacek Wilczak
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-776 Warsaw, Poland;
| | - Michał Oczkowski
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.); (M.O.); (Ł.K.)
| | - Łukasz Kopiasz
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.); (M.O.); (Ł.K.)
| | - Rafał Sapierzyński
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-776 Warsaw, Poland;
| | - Marcin Kruszewski
- Department of Molecular Biology and Translational Research, Institute of Rural Health, 20-090 Lublin, Poland;
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, 03-195 Warsaw, Poland
| | - Agnieszka Grzelak
- Cytometry Lab, Department Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
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5
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Revenco D, Hakenová MF, Mestek O, Koplík R. Using Single-Particle Inductively Coupled Plasma Mass Spectrometry to Determine the Changes of Silver Nanoparticles in Bread Induced via Simulated Digestion. Foods 2024; 13:1311. [PMID: 38731682 PMCID: PMC11083480 DOI: 10.3390/foods13091311] [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: 03/29/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
Silver nanoparticles (AgNPs), widely used in various fields of technology as an antimicrobial agent, represent a new type of environmental pollutant. Through various routes, AgNPs might penetrate into agricultural crops and foodstuffs. It is important to know if AgNPs contained in food persist in digested food and are therefore available for entering the inner organs of the consumer's body. Using the technique of single-particle ICP-MS, we analysed the changes in the number and size distribution of AgNPs added to a sample of bread submitted to in vitro simulated gastrointestinal digestion. The majority of silver, in terms of mass, was transformed from the state of particles to the dissolved state during bread digestion, but the number of particles was reduced by 25% only. The most abundant particle size was reduced from 60 nm to 49 nm. Hence, a substantial part of transformed nanoparticles is still present in food digestate. This means that AgNPs consumed together with food can theoretically enter the inner cells of human body.
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Affiliation(s)
- Diomid Revenco
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, Prague 6, 166 28 Prague, Czech Republic; (D.R.); (M.F.H.)
| | - Martina Fialová Hakenová
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, Prague 6, 166 28 Prague, Czech Republic; (D.R.); (M.F.H.)
| | - Oto Mestek
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 6, 166 28 Prague, Czech Republic;
| | - Richard Koplík
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, Prague 6, 166 28 Prague, Czech Republic; (D.R.); (M.F.H.)
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6
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Paul MB, Böhmert L, Thünemann AF, Loeschner K, Givelet L, Fahrenson C, Braeuning A, Sieg H. Influence of artificial digestion on characteristics and intestinal cellular effects of micro-, submicro- and nanoplastics. Food Chem Toxicol 2024; 184:114423. [PMID: 38158035 DOI: 10.1016/j.fct.2023.114423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
The production of plastics is rising since they have been invented. Micro, submicro- and nanoplastics are produced intentionally or generated by environmental processes, and constitute ubiquitous contaminants which are ingested orally by consumers. Reported health concerns include intestinal translocation, inflammatory response, oxidative stress and cytotoxicity. Every digestive milieu in the gastrointestinal tract does have an influence on the properties of particles and can cause changes in their effect on biological systems. In this study, we subjected plastic particles of different materials (polylactic acid, polymethylmethacrylate, melamine formaldehyde) and sizes (micro- to nano-range) to a complex artificial digestion model consisting of three intestinal fluid simulants (saliva, gastric and intestinal juice). We monitored the impact of the digestion process on the particles by performing Dynamic Light Scattering, Scanning Electron Microscopy and Asymmetric Flow Field-Flow Fractionation. An in vitro model of the intestinal epithelial barrier was used to monitor cellular effects and translocation behavior of (un)digested particles. In conclusion, artificial digestion decreased cellular interaction and slightly increased transport of all particles across the intestinal barrier. The interaction with organic matter resulted in clear differences in the agglomeration behavior. Moreover, we provide evidence for polymer-, size- and surface-dependent cellular effects of the test particles.
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Affiliation(s)
- Maxi B Paul
- German Federal Institute for Risk Assessment, Department of Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.
| | - Linda Böhmert
- German Federal Institute for Risk Assessment, Department of Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.
| | - Andreas F Thünemann
- Federal Institute for Materials Research and Testing (BAM), Division Synthesis and Scattering of Nanostructured Materials, Unter Den Eichen 87, 12205, Berlin, Germany.
| | - Katrin Loeschner
- Technical University of Denmark, Research Group for Analytical Food Chemistry, Kemitorvet 201, 2800, Kgs. Lyngby, Denmark.
| | - Lucas Givelet
- Technical University of Denmark, Research Group for Analytical Food Chemistry, Kemitorvet 201, 2800, Kgs. Lyngby, Denmark.
| | - Christoph Fahrenson
- Technical University of Berlin, Center for Electron Microscopy (ZELMI), Straße des 17. Juni 135, 10623, Berlin, Germany.
| | - Albert Braeuning
- German Federal Institute for Risk Assessment, Department of Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.
| | - Holger Sieg
- German Federal Institute for Risk Assessment, Department of Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.
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7
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Di Cristo L, Keller JG, Leoncino L, Marassi V, Loosli F, Seleci DA, Tsiliki G, Oomen AG, Stone V, Wohlleben W, Sabella S. Critical aspects in dissolution testing of nanomaterials in the oro-gastrointestinal tract: the relevance of juice composition for hazard identification and grouping. NANOSCALE ADVANCES 2024; 6:798-815. [PMID: 38298600 PMCID: PMC10825926 DOI: 10.1039/d3na00588g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/07/2023] [Indexed: 02/02/2024]
Abstract
The dissolution of a nanomaterial (NM) in an in vitro simulant of the oro-gastrointestinal (OGI) tract is an important predictor of its biodurability in vivo. The cascade addition of simulated digestive juices (saliva, stomach and intestine), including inorganic/organic biomacromolecules and digestive enzymes (complete composition, referred to as "Type 1 formulation"), strives for realistic representation of chemical composition of the OGI tract. However, the data robustness requires consideration of analytical feasibility, such as the use of simplified media. Here we present a systematic analysis of the effects exerted by different digestive juice formulations on the dissolution% (or half-life values) of benchmark NMs (e.g., zinc oxide, titanium dioxide, barium sulfate, and silicon dioxide). The digestive juices were progressively simplified by removal of components such as organic molecules, enzymes, and inorganic molecules (Type 2, 3 and 4). The results indicate that the "Type 1 formulation" augments the dissolution via sequestration of ions by measurable factors compared to formulations without enzymes (i.e., Type 3 and 4). Type 1 formulation is thus regarded as a preferable option for predicting NM biodurability for hazard assessment. However, for grouping purposes, the relative similarity among diverse nanoforms (NFs) of a NM is decisive. Two similarity algorithms were applied, and additional case studies comprising NFs and non NFs of the same substance were included. The results support the grouping decision by simplified formulation (Type 3) as a robust method for screening and grouping purposes.
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Affiliation(s)
- Luisana Di Cristo
- Istituto Italiano Di Tecnologia, Nanoregulatory Group, D3PharmaChemistry Genova Italy
| | - Johannes G Keller
- Department of Material Physics and Department of Experimental Toxicology and Ecology, BASF SE Ludwigshafen Germany
| | - Luca Leoncino
- Electron Microscopy Facility, Istituto Italiano di Tecnologia Genova Italy
| | | | - Frederic Loosli
- Department of Material Physics and Department of Experimental Toxicology and Ecology, BASF SE Ludwigshafen Germany
- University of Vienna Vienna Austria
| | - Didem Ag Seleci
- Department of Material Physics and Department of Experimental Toxicology and Ecology, BASF SE Ludwigshafen Germany
| | - Georgia Tsiliki
- Institute for the Management of Information Systems, Athena Research Center Marousi Greece
| | - Agnes G Oomen
- National Institute for Public Health and the Environment (RIVM) Bilthoven The Netherlands
- University of Amsterdam Amsterdam The Netherlands
| | - Vicki Stone
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University Edinburgh UK
| | - Wendel Wohlleben
- Department of Material Physics and Department of Experimental Toxicology and Ecology, BASF SE Ludwigshafen Germany
| | - Stefania Sabella
- Istituto Italiano Di Tecnologia, Nanoregulatory Group, D3PharmaChemistry Genova Italy
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Huang X, Li C, Wei T, Liu N, Yao Y, Wang Z, Hu Y, Fang Q, Guan S, Xue Y, Wu T, Zhang T, Tang M. Oropharyngeal aspirated Ag/TiO 2 nanohybrids: Transformation, distribution and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168309. [PMID: 37944607 DOI: 10.1016/j.scitotenv.2023.168309] [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: 09/11/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
The wide application of Ag-loaded TiO2 nanohybrids photocatalysts on environment and energy increases the lung exposure risk to humans. Ag/TiO2 nanohybrids inhalation can cause pulmonary toxicity, and there are concerns about whether the loaded silver can be released and cause toxic effects on extrapulmonary organs. Therefore, in this study, the possible biotransformation, biodistribution, and toxicity of oropharyngeal aspirated Ag/TiO2 nanohybrids were investigated first time in vitro and in vivo to answer this question. Firstly, the results of biotransformation showed that the ultrafine silver nanoparticles (~3.5 nm, 2 w/w%) loaded on the surface of nano-TiO2 (~25 nm) could agglomerate and release in Gamble's solution, and the hydrodynamic diameter of the nanohybrids agglomerates increased from about 200 nm to 1 μm. Furthermore, after exposure 10 mg/kg Ag/TiO2 nanohybrids to C57BL/6 J male mice by oropharyngeal aspiration weekly, the biodistribution results showed that the released silver could result in blood, liver, and brain distribution within 28 d. Finally, body weight, organ coefficient, blood biochemical indicators of liver and kidney function, and pathological images demonstrated that although silver could release and lead to extrapulmonary organ distribution, it did not cause obvious extrapulmonary organ damage. The original lung was still the main toxicity and accumulation target organ of Ag/TiO2 nanohybrids, which mainly manifested as the pro-inflammatory and pro-fibrotic effects that should be focused on in the future. Therefore, this study is of great significance in evaluating the safety of Ag-loaded TiO2 nanoparticles and predicting their toxic mechanisms.
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Affiliation(s)
- Xiaoquan Huang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Congcong Li
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Tingting Wei
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Na Liu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yongshuai Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Zhihui Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yuanyuan Hu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Qing Fang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Shujing Guan
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China.
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9
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Gupta P, Rai N, Verma A, Gautam V. Microscopy based methods for characterization, drug delivery, and understanding the dynamics of nanoparticles. Med Res Rev 2024; 44:138-168. [PMID: 37294298 DOI: 10.1002/med.21981] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
Nanomedicine is an emerging field that exploits nanotechnology for the development of novel therapeutic and diagnostic modalities. Researches are been focussed in nanoimaging to develop noninvasive, highly sensitive, and reliable tools for diagnosis and visualization in nanomedical field. The application of nanomedicine in healthcare requires in-depth understanding of their structural, physical and morphological properties, internalization inside living system, biodistribution and localization, stability, mode of action and possible toxic health effects. Microscopic techniques including fluorescence-based confocal laser scanning microscopy, super-resolution fluorescence microscopy and multiphoton microscopy; optical-based Raman microscopy, photoacoustic microscopy and optical coherence tomography; photothermal microscopy; electron microscopy (transmission electron microscope and scanning electron microscope); atomic force microscopy; X-ray microscopy and, correlative multimodal imaging are recognized as an indispensable tool in material research and aided in numerous discoveries. Microscopy holds great promise in detecting the fundamental structures of nanoparticles (NPs) that determines their performance and applications. Moreover, the intricate details that allows assessment of chemical composition, surface topology and interfacial properties, molecular, microstructure, and micromechanical properties are also elucidated. With plethora of applications, microscopy-based techniques have been used to characterize novel NPs alongwith their proficient designing and adoption of safe strategies to be exploited in nanomedicine. Consequently, microscopic techniques have been extensively used in the characterization of fabricated NPs, and their biomedical application in diagnostics and therapeutics. The present review provides an overview of the microscopy-based techniques for in vitro and in vivo application in nanomedical investigation alongwith their challenges and advancement to meet the limitations of conventional methods.
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Affiliation(s)
- Priyamvada Gupta
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Nilesh Rai
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ashish Verma
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Vibhav Gautam
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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10
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Tafti F, Savant S, Saraf T, Pinge S, Thorat R, Sharma V. Hazards Associated With Nanotechnology in Clinical Dentistry. Cureus 2023; 15:e46978. [PMID: 38021801 PMCID: PMC10640876 DOI: 10.7759/cureus.46978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
Nanotechnology has transformed the field of dentistry with immense potential to provide comprehensive oral health care using nanomaterials, advanced clinical tools, and devices. New materials with superior properties can be developed using nanotechnology by making use of their atomic or molecular properties. Although there are numerous ways in which nanomaterials impact our health, the primary cause is that they comprise chemicals that may have an inadvertent reaction in the body. Moreover, they are used on a daily basis, increasing human contact with them. It is observed to be smaller in size than the physiological barrier in our bodies, making it much simpler for them to pass through and enter the body and they are being used more frequently. It is observed to be smaller in size than the physiological barrier in our bodies, making it much simpler for them to pass through and enter the body and being used more frequently. Although there are numerous ways in which nanomaterials impact our health, the primary cause is they comprise chemicals that may have an inadvertent reaction in the body. The review discusses various types of toxicity, including the cytotoxicity of composites, carbon nanoparticles, silver nanoparticles (SNPs), and quantum dots. It also covers genotoxicity, the effect of nanoparticles on salivary secretion, oral and gastrointestinal mucosa passage of nanoparticles, the tooth surface microenvironment, and interactions with engineered nanomaterials (ENMs). It is concluded that there is scarce information regarding the presence of chemicals that are released from nanoparticles used in dental materials. Nanotechnology is at an infant stage, although it has progressed by leaps and bounds, hailing a new age that provides better treatment modalities in various branches of dentistry. Although the development and application of nanodentistry are of considerable interest, knowledge regarding the possible toxicity of such materials must be meticulously evaluated, and potential benefits must be weighed against the risks to identify potential gaps in the safety assessment. Further research is needed on workplace exposure to nanoparticles in dentistry.
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Affiliation(s)
- Farheen Tafti
- Pediatric and Preventive Dentistry, Bharati Vidyapeeth (Deemed-to-Be University) Dental College and Hospital, Navi Mumbai, IND
| | - Suyog Savant
- Public Health Dentistry, Bharati Vidyapeeth (Deemed-to-Be University) Dental College and Hospital, Navi Mumbai, IND
| | - Tanvi Saraf
- Pediatric and Preventive Dentistry, Bharati Vidyapeeth (Deemed-to-Be University) Dental College and Hospital, Navi Mumbai, IND
| | - Sujata Pinge
- Public Health Dentistry, Bharati Vidyapeeth (Deemed-to-Be University) Dental College and Hospital, Navi Mumbai, IND
| | - Rohit Thorat
- Prosthodontics, Bharati Vidyapeeth (Deemed-to-Be University) Dental College and Hospital, Pune, IND
| | - Vivek Sharma
- Periodontics, Bharati Vidyapeeth (Deemed-to-Be University) Dental College and Hospital, Navi Mumbai, IND
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Kamyab H, Chelliapan S, Hayder G, Yusuf M, Taheri MM, Rezania S, Hasan M, Yadav KK, Khorami M, Farajnezhad M, Nouri J. Exploring the potential of metal and metal oxide nanomaterials for sustainable water and wastewater treatment: A review of their antimicrobial properties. CHEMOSPHERE 2023; 335:139103. [PMID: 37271472 DOI: 10.1016/j.chemosphere.2023.139103] [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: 02/27/2023] [Revised: 05/19/2023] [Accepted: 05/31/2023] [Indexed: 06/06/2023]
Abstract
Metallic nanoparticles (NPs) are of particular interest as antimicrobial agents in water and wastewater treatment due to their broad suppressive range against bacteria, viruses, and fungi commonly found in these environments. This review explores the potential of different types of metallic NPs, including zinc oxide, gold, copper oxide, and titanium oxide, for use as effective antimicrobial agents in water and wastewater treatment. This is due to the fact that metallic NPs possess a broad suppressive range against bacteria, viruses, as well as fungus. In addition to that, NPs are becoming an increasingly popular alternative to antibiotics for treating bacterial infections. Despite the fact that most research has been focused on silver NPs because of the antibacterial qualities that are known to be associated with them, curiosity about other metallic NPs as potential antimicrobial agents has been growing. Zinc oxide, gold, copper oxide, and titanium oxide NPs are included in this category since it has been demonstrated that these elements have antibacterial properties. Inducing oxidative stress, damage to the cellular membranes, and breakdowns throughout the protein and DNA chains are some of the ways that metallic NPs can have an influence on microbial cells. The purpose of this review was to engage in an in-depth conversation about the current state of the art regarding the utilization of the most important categories of metallic NPs that are used as antimicrobial agents. Several approaches for the synthesis of metal-based NPs were reviewed, including physical and chemical methods as well as "green synthesis" approaches, which are synthesis procedures that do not involve the employment of any chemical agents. Moreover, additional pharmacokinetics, physicochemical properties, and the toxicological hazard associated with the application of silver NPs as antimicrobial agents were discussed.
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Affiliation(s)
- Hesam Kamyab
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), Selangor Darul Ehsan, Kajang, 43000, Malaysia; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India; Process Systems Engineering Centre (PROSPECT), Faculty of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
| | - Shreeshivadasan Chelliapan
- Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jln Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
| | - Gasim Hayder
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), Selangor Darul Ehsan, Kajang, 43000, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), Selangor Darul Ehsan, Kajang, 43000, Malaysia
| | - Mohammad Yusuf
- Institute of Hydrocarbon Recovery, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, 32610, Malaysia
| | - Mohammad Mahdi Taheri
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahabaldin Rezania
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
| | - Mudassir Hasan
- Department of Chemical Engineering King Khalid University, Abha, Saudi Arabia
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, 462044, India; Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah, 64001, Iraq
| | - Majid Khorami
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Facultad de Ingeniería en Mecánica y Ciencias de la Producción, Escuela Superior Politécnica del Litoral, ESPOL, Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuado
| | - Mohammad Farajnezhad
- Azman Hashim International Business School (AHIBS), Universiti Teknologi Malaysia Kuala Lumpur, 54100, Kuala Lumpur, Malaysia
| | - J Nouri
- Department of Environmental Health Engineering, Tehran University of Medical Sciences, Tehran, Iran
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12
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Jabor Z, Sutton SC. Effects of Digestion, Cell Culture Media, and Mucous on the Physical Properties, Cellular Effects, and Translocation of Polystyrene and Polymethacrylate Nanoparticles. TOXICS 2023; 11:708. [PMID: 37624213 PMCID: PMC10458608 DOI: 10.3390/toxics11080708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/27/2023] [Accepted: 08/12/2023] [Indexed: 08/26/2023]
Abstract
The discovery of plastic and metal nanoparticles in organisms, foods, and beverages has generated numerous studies on the effects of these particles on the barrier cells and their subsequent absorption into the body. Following ingestion, nanoparticles travel down the gastrointestinal tract (GIT), and their physicochemical characteristics change in response to the change in proteins and pH during their digestion. We measured the translocation of digested nanoparticles across a co-culture monolayer of Caco-2 and various combinations (1:9, 5:5, and 9:1) of HT29-MTX-E12. The in vitro model of the intestine was used to determine the translocation of digested 20 nm polymethacrylate (PMA) particles and the accompanying monolayer barrier effects after a 72 h exposure. The in vitro digestion increased the agglomeration and hydrodynamic diameters and decreased the surface charge of the nanoparticles. For NH2-functionalized polymethacrylate nanoparticles (PMA-NH2), the diameters increased from 57 nm (water) to 3800 nm (media), or 2660 nm (chyme). These nanoparticles compromised the integrity of the monolayer (trans-epithelial electrical resistance, Lucifer yellow translocation) and translocated across all the cell ratio configurations. Digestion can have a large effect on nanoparticle agglomeration and surface charge. Excess mucous was not seen as a barrier to the translocation of PMA-NH2.
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Affiliation(s)
- Zainab Jabor
- School of Pharmacy, Westbrook College of Health Professions, University of New England, 716 Stevens Ave, Portland, ME 04103, USA
| | - Steven C. Sutton
- Department of Pharmaceutical and Administrative Sciences, School of Pharmacy, Westbrook College of Health Professions, University of New England, 716 Stevens Ave, Portland, ME 04103, USA
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13
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Tang Y, Jia Z, Li X, Zhao X, Zhang S, Luo L, Xia L, Fang Z, Zhang Y, Chen M. Mechanism of wound repair in diabetic rats using nanosilver-free alginate dressing. J Wound Care 2023; 32:cli-clx. [PMID: 37561702 DOI: 10.12968/jowc.2023.32.sup8.cli] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
OBJECTIVE Nanosilver-alginate dressing can effectively promote the healing of diabetic wounds in rats. However, due to the potential toxicity of nanosilver, its widespread application in hard-to-heal wound healing is limited. In the present study, the role and potential mechanism of nanosilver-free alginate gel (NSFAG) in the healing process of diabetic wounds were explored. METHOD A diabetic rat skin wound model was established, and wounds were treated with saline (NC group), nanosilver gel (NSG group) or nanosilver-free alginate gel (NSFAG group) for seven consecutive days. RESULTS NSFAG significantly promoted wound healing and increased the content of protein and hydroxyproline in granulation tissues, and was superior to NSG (p<0.05). Immunohistochemical analyses revealed that the skin wound tissue structure of the NSFAG group was intact, and the number of skin appendages in the dermis layer was significantly higher compared with the NC group and the NSG group (p<0.05). Western blot analysis found that the protein expression of the epidermal stem cell marker molecules CK19 and CK14 as well the proliferation marker of keratinocytes Ki67 in the NSFAG group was significantly higher compared with the NC group or NSG group (p<0.05). Additionally, the proliferation marker of keratinocytes Ki67 in the NSFAG group was significantly higher compared with the NC or NSG group (p<0.05). Immunofluorescence staining analyses indicated that the CK19- and CK14-positive cells were mainly distributed around the epidermis and the newly formed appendages in the NSFAG group, and this result was not observed in the NC or NSG groups. CONCLUSION The present findings demonstrate that NSFAG can effectively accelerate wound healing in diabetic rats by promoting epidermal stem cell proliferation and differentiation into skin cells, as well as formation of granulation tissue, suggesting that it can be a potential dressing for diabetic wounds.
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Affiliation(s)
- Ying Tang
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Zeguo Jia
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Xueting Li
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Xiaotong Zhao
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Shiqi Zhang
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Li Luo
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Li Xia
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
| | - Zhaohui Fang
- Institute of Traditional Chinese Medicine Diabetes Prevention, Anhui Academy of Traditional Chinese Medicine, People's Republic of China
| | - Yuanzhi Zhang
- Hefei Institute of Physical Science, Chinese Academy of Sciences, People's Republic of China
| | - Mingwei Chen
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, People's Republic of China
- Institute of Traditional Chinese Medicine Diabetes Prevention, Anhui Academy of Traditional Chinese Medicine, People's Republic of China
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14
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Cary C, Stapleton P. Determinants and mechanisms of inorganic nanoparticle translocation across mammalian biological barriers. Arch Toxicol 2023; 97:2111-2131. [PMID: 37303009 PMCID: PMC10540313 DOI: 10.1007/s00204-023-03528-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 05/22/2023] [Indexed: 06/13/2023]
Abstract
Biological barriers protect delicate internal tissues from exposures to and interactions with hazardous materials. Primary anatomical barriers prevent external agents from reaching systemic circulation and include the pulmonary, gastrointestinal, and dermal barriers. Secondary barriers include the blood-brain, blood-testis, and placental barriers. The tissues protected by secondary barriers are particularly sensitive to agents in systemic circulation. Neurons of the brain cannot regenerate and therefore must have limited interaction with cytotoxic agents. In the testis, the delicate process of spermatogenesis requires a specific milieu distinct from the blood. The placenta protects the developing fetus from compounds in the maternal circulation that would impair limb or organ development. Many biological barriers are semi-permeable, allowing only materials or chemicals, with a specific set of properties, that easily pass through or between cells. Nanoparticles (particles less than 100 nm) have recently drawn specific concern due to the possibility of biological barrier translocation and contact with distal tissues. Current evidence suggests that nanoparticles translocate across both primary and secondary barriers. It is known that the physicochemical properties of nanoparticles can affect biological interactions, and it has been shown that nanoparticles can breach primary and some secondary barriers. However, the mechanism by which nanoparticles cross biological barriers has yet to be determined. Therefore, the purpose of this review is to summarize how different nanoparticle physicochemical properties interact with biological barriers and barrier products to govern translocation.
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Affiliation(s)
- Chelsea Cary
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Phoebe Stapleton
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Environmental and Occupational Health Sciences Institute, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ, 08854, USA.
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15
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Mertens J, Alami A, Arijs K. Comparative in vivo toxicokinetics of silver powder, nanosilver and soluble silver compounds after oral administration to rats. Arch Toxicol 2023; 97:1859-1872. [PMID: 37195448 PMCID: PMC10256634 DOI: 10.1007/s00204-023-03511-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/26/2023] [Indexed: 05/18/2023]
Abstract
Silver (Ag; massive, powder and nanoform) and Ag compounds are used in industrial, medical and consumer applications, with potential for human exposure. Uncertainties exist about their comparative mammalian toxicokinetic ('TK') profiles, including their relative oral route bioavailability, especially for Ag massive and powder forms. This knowledge gap impedes concluding on the grouping of Ag and Ag compounds for hazard assessment purposes. Therefore, an in vivo TK study was performed in a rat model. Sprague-Dawley rats were exposed via oral gavage for up to 28 days to silver acetate (AgAc; 5, 55, 175 mg/kg(bw)/d), silver nitrate (AgNO3; 5, 55, 125 mg/kg(bw)/d), nanosilver (AgNP; 15 nm diameter; 3.6, 36, 360 mg/kg(bw)/d) or silver powder (AgMP; 0.35 µm diameter; 36, 180, 1000 mg/kg(bw)/d). Total Ag concentrations were determined in blood and tissues to provide data on comparative systemic exposure to Ag and differentials in achieved tissue Ag levels. AgAc and AgNO3 were the most bioavailable forms with comparable and linear TK profiles (achieved systemic exposures and tissue concentrations). AgMP administration led to systemic exposures of about an order of magnitude less, with tissue Ag concentrations 2-3 orders of magnitude lower and demonstrating non-linear kinetics. The apparent oral bioavailability of AgNP was intermediate between AgAc/AgNO3 and AgMP. For all test items, highest tissue Ag concentrations were in the gastrointestinal tract and reticuloendothelial organs, whereas brain and testis were minor sites of distribution. It was concluded that the oral bioavailability of AgMP was very limited. These findings provide hazard assessment context for various Ag test items and support the prediction that Ag in massive and powder forms exhibit low toxicity potential.
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Affiliation(s)
- Jelle Mertens
- European Precious Metals Federation, Avenue de Tervueren 168 Box 6, 1150, Brussels, Belgium.
| | - Anissa Alami
- European Precious Metals Federation, Avenue de Tervueren 168 Box 6, 1150, Brussels, Belgium
| | - Katrien Arijs
- European Precious Metals Federation, Avenue de Tervueren 168 Box 6, 1150, Brussels, Belgium
- ARCHE Consulting, Liefkensstraat 35D, 9032 Wondelgem, Ghent, Belgium
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16
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Ferraris F, Raggi A, Ponti J, Mehn D, Gilliland D, Savini S, Iacoponi F, Aureli F, Calzolai L, Cubadda F. Agglomeration Behavior and Fate of Food-Grade Titanium Dioxide in Human Gastrointestinal Digestion and in the Lysosomal Environment. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1908. [PMID: 37446425 DOI: 10.3390/nano13131908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/13/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023]
Abstract
In the present study, we addressed the knowledge gaps regarding the agglomeration behavior and fate of food-grade titanium dioxide (E 171) in human gastrointestinal digestion (GID). After thorough multi-technique physicochemical characterization including TEM, single-particle ICP-MS (spICP-MS), CLS, VSSA determination and ELS, the GI fate of E 171 was studied by applying the in vitro GID approach established for the regulatory risk assessment of nanomaterials in Europe, using a standardized international protocol. GI fate was investigated in fasted conditions, relevant to E 171 use in food supplements and medicines, and in fed conditions, with both a model food and E 171-containing food samples. TiO2 constituent particles were resistant to GI dissolution, and thus, their stability in lysosomal fluid was investigated. The biopersistence of the material in lysosomal fluid highlighted its potential for bioaccumulation. For characterizing the agglomeration degree in the small intestinal phase, spICP-MS represented an ideal analytical tool to overcome the limitations of earlier studies. We demonstrated that, after simulated GID, in the small intestine, E 171 (at concentrations reflecting human exposure) is present with a dispersion degree similar to that obtained when dispersing the material in water by means of high-energy sonication (i.e., ≥70% of particles <250 nm).
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Affiliation(s)
- Francesca Ferraris
- Istituto Superiore di Sanità-National Institute of Health, 00161 Rome, Italy
| | - Andrea Raggi
- Istituto Superiore di Sanità-National Institute of Health, 00161 Rome, Italy
| | - Jessica Ponti
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
| | - Dora Mehn
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
| | - Douglas Gilliland
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
| | - Sara Savini
- Istituto Superiore di Sanità-National Institute of Health, 00161 Rome, Italy
| | - Francesca Iacoponi
- Istituto Superiore di Sanità-National Institute of Health, 00161 Rome, Italy
| | - Federica Aureli
- Istituto Superiore di Sanità-National Institute of Health, 00161 Rome, Italy
| | - Luigi Calzolai
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
| | - Francesco Cubadda
- Istituto Superiore di Sanità-National Institute of Health, 00161 Rome, Italy
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17
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Qi M, Wang X, Chen J, Liu Y, Liu Y, Jia J, Li L, Yue T, Gao L, Yan B, Zhao B, Xu M. Transformation, Absorption and Toxicological Mechanisms of Silver Nanoparticles in the Gastrointestinal Tract Following Oral Exposure. ACS NANO 2023; 17:8851-8865. [PMID: 37145866 DOI: 10.1021/acsnano.3c00024] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Oral exposure is known as the primary way for silver nanoparticles (AgNPs), which are commonly used as food additives or antibacterial agents in commercial products, to enter the human body. Although the health risk of AgNPs has been a concern and extensively researched over the past few decades, there are still numerous knowledge gaps that need to be filled to disclose what AgNPs experience in the gastrointestinal tract (GIT) and how they cause oral toxicity. In order to gain more insight into the fate of AgNPs in the GIT, the main gastrointestinal transformation of AgNPs, including aggregation/disaggregation, oxidative dissolution, chlorination, sulfuration, and corona formation, is first described. Second, the intestinal absorption of AgNPs is presented to show how AgNPs interact with epithelial cells and cross the intestinal barrier. Then, more importantly, we make an overview of the mechanisms underlying the oral toxicity of AgNPs in light of recent advances as well as the factors affecting the nano-bio interactions in the GIT, which have rarely been thoroughly elaborated in published literature. At last, we emphatically discuss the issues that need to be addressed in the future to answer the question "How does oral exposure to AgNPs cause detrimental effects on the human body?".
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Affiliation(s)
- Mengying Qi
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xudong Wang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiahao Chen
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yin Liu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yun Liu
- Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, High Magnetic Field Laboratory, HFIPS, Anhui, Chinese Academy of Science, Hefei 230031, China
| | - Jianbo Jia
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Lingxiangyu Li
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tongtao Yue
- Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China
| | - Lirong Gao
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Bin Zhao
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Xu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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18
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Ferrante M, Grasso A, Giuberti G, Dall'Asta M, Puglisi E, Arena G, Nicosia A, Fiore M, Copat C. Behaviour and fate of Ag-NPs, TiO 2-NPs and ZnO-NPs in the human gastrointestinal tract: Biopersistence rate evaluation. Food Chem Toxicol 2023; 176:113779. [PMID: 37062331 DOI: 10.1016/j.fct.2023.113779] [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: 10/27/2022] [Revised: 03/27/2023] [Accepted: 04/10/2023] [Indexed: 04/18/2023]
Abstract
This study aims to provide information on the behaviour and biopersistence rate (BP) of metallic nanoparticles (Ag-NPs, TiO2-NPs, ZnO-NPs) naturally occurring in canned seafood and subjected to static in vitro digestion. Single particle ICP-MS analysis was performed to determine NPs distribution and concentrations in oral, gastric, and intestinal digests. Depending on the conditions of the digestive phase and the sample matrix, the phenomena of agglomeration and dispersion were highlighted and confirmed by Dynamic Light Scattering (DLS) technique. In standard suspensions, Ag-NPs had lower biopersistence (BP) than ZnO and TiO2-NPs (BP 34%, 89% and >100%, respectively). Among Ag-NPs and TiO2-NPs naturally present in the food matrix, those in canned tuna were more degradable than those in canned clam (BP Ag-NPs 36% vs. > 100%; BP TiO2-NPs 96% vs. > 100%), while BP ZnO-NPs showed high biopersistence in both seafood matrix (>100%). The biopersistence rates were higher than the recommended limit set by European Food Safety Authority (EFSA) (12%), referred to nanotechnologies to be applied in the food and feed chain, thus the investigated naturally occurring NPs cannot be considered readily degradable.
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Affiliation(s)
- Margherita Ferrante
- Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - Alfina Grasso
- Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy.
| | - Gianluca Giuberti
- Department for Sustainable Food Process-DiSTAS, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Margherita Dall'Asta
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Edoardo Puglisi
- Department for Sustainable Food Process-DiSTAS, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | | | - Angelo Nicosia
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, I-95125, Catania, Italy
| | - Maria Fiore
- Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - Chiara Copat
- Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
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19
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Borowska M, Jiménez-Lamana J, Bierla K, Jankowski K, Szpunar J. A green and fast microwave-assisted synthesis of selenium nanoparticles and their characterization under gastrointestinal conditions using mass spectrometry. Food Chem 2023; 417:135864. [PMID: 36924715 DOI: 10.1016/j.foodchem.2023.135864] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 11/07/2022] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
We present a novel microwave-assisted green synthesis of selenium nanoparticles (SeNPs) using yeast extract as source of a non-toxic reducing and capping agents. Effects of synthesis and gastrointestinal digestion conditions on the biogenic Se particle size distribution and number concentration using SP ICP MS were evaluated. The median equivalent diameter of SeNPs varied depending on the synthesis conditions. Upon incubation in simulated gastric juice, the increase of SeNPs size was observed, whereas after simulated intestinal juice addition, their size came back close to the initial value. The biomolecules contained in yeast extract, which play predominant role in the synthesis of SeNPs, were identified by non-targeted qualitative analysis using LC Orbitrap ESI MS. The use of the state-of-the-art MS techniques allowed both the comprehensive assessment of the processes leading to the SeNPs formation and the evaluation of their behavior under gastrointestinal conditions which is of utmost importance for their use as a novel selenium source.
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Affiliation(s)
- Magdalena Borowska
- Warsaw University of Technology, Faculty of Chemistry, Chair of Analytical Chemistry, 00-664 Warsaw, Poland.
| | - Javier Jiménez-Lamana
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, France
| | - Katarzyna Bierla
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, France
| | - Krzysztof Jankowski
- Warsaw University of Technology, Faculty of Chemistry, Chair of Analytical Chemistry, 00-664 Warsaw, Poland
| | - Joanna Szpunar
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, France
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20
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Wang S, Kang X, Alenius H, Wong SH, Karisola P, El-Nezami H. Oral exposure to Ag or TiO 2 nanoparticles perturbed gut transcriptome and microbiota in a mouse model of ulcerative colitis. Food Chem Toxicol 2022; 169:113368. [PMID: 36087619 DOI: 10.1016/j.fct.2022.113368] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/05/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Abstract
Silver (nAg) and titanium dioxide (nTiO2) nanoparticles improve texture, flavour or anti-microbial properties of various food products and packaging materials. Despite their increased oral exposure, their potential toxicities in the dysfunctional intestine are unclear. Here, the effects of ingested nAg or nTiO2 on inflamed colon were revealed in a mouse model of chemical-induced acute ulcerative colitis. Mice (eight/group) were exposed to nAg or nTiO2 by oral gavage for 10 consecutive days. We characterized disease phenotypes, histology, and alterations in colonic transcriptome (RNA sequencing) and gut microbiome (16S sequencing). Oral exposure to nAg caused only minor changes in phenotypic hallmarks of colitic mice but induced extensive responses in gene expression enriching processes of apoptotic cell death and RNA metabolism. Instead, ingested nTiO2 yielded shorter colon, aggravated epithelial hyperplasia and deeper infiltration of inflammatory cells. Both nanoparticles significantly changed the gut microbiota composition, resulting in loss of diversity and increase of potential pathobionts. They also increased colonic mucus and abundance of Akkermansia muciniphila. Overall, nAg and nTiO2 induce dissimilar immunotoxicological changes at the molecular and microbiome level in the context of colon inflammation. The results provide valuable information for evaluation of utilizing metallic nanoparticles in food products for the vulnerable population.
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Affiliation(s)
- Shuyuan Wang
- School of Biological Sciences, University of Hong Kong, Pokfulam Road, Hong Kong Special Administrative Region of China.
| | - Xing Kang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China; State Key Laboratory of Digestive Disease, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China.
| | - Harri Alenius
- Human Microbiome Research Program, University of Helsinki, Haartmaninkatu 3, 00290, Helsinki, Finland; Institute of Environmental Medicine (IMM), Karolinska Institutet, Stockholm, 171 77, Sweden.
| | - Sunny Hei Wong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
| | - Piia Karisola
- Human Microbiome Research Program, University of Helsinki, Haartmaninkatu 3, 00290, Helsinki, Finland.
| | - Hani El-Nezami
- School of Biological Sciences, University of Hong Kong, Pokfulam Road, Hong Kong Special Administrative Region of China; Nutrition and Health, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
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21
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Prostatic Therapeutic Efficacy of LENILUTS®, a Novel Formulation with Multi-Active Principles. Pharmaceutics 2022; 14:pharmaceutics14091866. [PMID: 36145614 PMCID: PMC9506015 DOI: 10.3390/pharmaceutics14091866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
Lower Urinary Tract Symptoms (LUTs) in men are usually associated to benign prostatic hyperplasia (BPH), a non-malignant prostate enlargement. Unfortunately, BPH etiology is still unclear. Recent works highlighted a relevant inflammation role in BPH onset and development. Consequently, to complement the 5-α reductase (and α-adrenergic receptor agonists-based therapy, an anti-inflammatory therapy should be devised. To reduce potential adverse effects of multi-drug treatment, plant extract-based therapies are becoming increasingly common. Serenoa repens, the main phytotherapic treatment for BPH, is not sufficient to front the multi-faceted etiology of BPH. In response to this, a novel, multiple phytotherapic agents-based formulation, LENILUTS®, was developed. In the present work, we compared, using an in vitro approach, the prostatic safety and efficacy of LENILUTS® with a commercial formulation, based only on Serenoa repens, and a 5αR inhibitor, Dutasteride. Furthermore, preliminary in vitro experiments to investigate the active principles, bioaccessibility and bioavailability of LENILUTS® were performed. Our results showed a better prostatic safety and therapeutic efficacy of LENILUTS® compared to the commercial formulation and Dutasteride, with increased anti-inflammatory, and pro-apoptotic activity, and a stronger inhibitory effect on the release of the key enzyme 5αR and Prostatic-Specific Antigen (PSA). The limited bioaccessibility and bioavailability of the active principles of LENILUTS® were highlighted. Considering the results obtained, the LENILUTS® formulation is more promising for BPH and LUTs therapy compared to formulations based on Serenoa repens only, but further efforts should be made to improve the bioaccessibility and bioavailability of the active principles.
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22
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Antonello G, Marucco A, Gazzano E, Kainourgios P, Ravagli C, Gonzalez-Paredes A, Sprio S, Padín-González E, Soliman MG, Beal D, Barbero F, Gasco P, Baldi G, Carriere M, Monopoli MP, Charitidis CA, Bergamaschi E, Fenoglio I, Riganti C. Changes of physico-chemical properties of nano-biomaterials by digestion fluids affect the physiological properties of epithelial intestinal cells and barrier models. Part Fibre Toxicol 2022; 19:49. [PMID: 35854319 PMCID: PMC9297619 DOI: 10.1186/s12989-022-00491-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/29/2022] [Indexed: 12/15/2022] Open
Abstract
Background The widespread use of nano-biomaterials (NBMs) has increased the chance of human exposure. Although ingestion is one of the major routes of exposure to NBMs, it is not thoroughly studied to date. NBMs are expected to be dramatically modified following the transit into the oral-gastric-intestinal (OGI) tract. How these transformations affect their interaction with intestinal cells is still poorly understood. NBMs of different chemical nature—lipid-surfactant nanoparticles (LSNPs), carbon nanoparticles (CNPs), surface modified Fe3O4 nanoparticles (FNPs) and hydroxyapatite nanoparticles (HNPs)—were treated in a simulated human digestive system (SHDS) and then characterised. The biological effects of SHDS-treated and untreated NBMs were evaluated on primary (HCoEpiC) and immortalised (Caco-2, HCT116) epithelial intestinal cells and on an intestinal barrier model. Results The application of the in vitro SDHS modified the biocompatibility of NBMs on gastrointestinal cells. The differences between SHDS-treated and untreated NBMs could be attributed to the irreversible modification of the NBMs in the SHDS. Aggregation was detected for all NBMs regardless of their chemical nature, while pH- or enzyme-mediated partial degradation was detected for hydroxyapatite or polymer-coated iron oxide nanoparticles and lipid nanoparticles, respectively. The formation of a bio-corona, which contains proteases, was also demonstrated on all the analysed NBMs. In viability assays, undifferentiated primary cells were more sensitive than immortalised cells to digested NBMs, but neither pristine nor treated NBMs affected the intestinal barrier viability and permeability. SHDS-treated NBMs up-regulated the tight junction genes (claudin 3 and 5, occludin, zonula occludens 1) in intestinal barrier, with different patterns between each NBM, and increase the expression of both pro- and anti-inflammatory cytokines (IL-1β, TNF-α, IL-22, IL-10). Notably, none of these NBMs showed any significant genotoxic effect. Conclusions Overall, the results add a piece of evidence on the importance of applying validated in vitro SHDS models for the assessment of NBM intestinal toxicity/biocompatibility. We propose the association of chemical and microscopic characterization, SHDS and in vitro tests on both immortalised and primary cells as a robust screening pipeline useful to monitor the changes in the physico-chemical properties of ingested NBMs and their effects on intestinal cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00491-w.
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Affiliation(s)
- Giulia Antonello
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy.,Department of Public Health and Pediatrics, University of Turin, Piazza Polonia, 94, 10126, Turin, Italy.,Department of Oncology, University of Turin, Via Santena 5 bis, 10126, Turin, Italy
| | - Arianna Marucco
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Turin, Italy
| | - Elena Gazzano
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Turin, Italy
| | - Panagiotis Kainourgios
- Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Zographos, Athens, Greece
| | - Costanza Ravagli
- Colorobbia Consulting Srl, Headwork, Via Pietramarina, 53, 50059, Sovigliana, Vinci, FI, Italy
| | | | - Simone Sprio
- National Research Council, Institute of Science and Technology for Ceramics ISTEC-CNR, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Esperanza Padín-González
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen Green, Dublin 2, Ireland
| | - Mahmoud G Soliman
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen Green, Dublin 2, Ireland
| | - David Beal
- CEA, CNRS, IRIG, SyMMES-CIBEST, Université Grenoble Alpes, 38000, Grenoble, France
| | - Francesco Barbero
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy
| | - Paolo Gasco
- Nanovector Srl, Headwork, Via Livorno 60, 10144, Turin, Italy
| | - Giovanni Baldi
- Colorobbia Consulting Srl, Headwork, Via Pietramarina, 53, 50059, Sovigliana, Vinci, FI, Italy
| | - Marie Carriere
- CEA, CNRS, IRIG, SyMMES-CIBEST, Université Grenoble Alpes, 38000, Grenoble, France
| | - Marco P Monopoli
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen Green, Dublin 2, Ireland
| | - Costas A Charitidis
- Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Zographos, Athens, Greece
| | - Enrico Bergamaschi
- Department of Public Health and Pediatrics, University of Turin, Piazza Polonia, 94, 10126, Turin, Italy
| | - Ivana Fenoglio
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy.
| | - Chiara Riganti
- Department of Oncology, University of Turin, Via Santena 5 bis, 10126, Turin, Italy.
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23
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Zanoni I, Keller JG, Sauer UG, Müller P, Ma-Hock L, Jensen KA, Costa AL, Wohlleben W. Dissolution Rate of Nanomaterials Determined by Ions and Particle Size under Lysosomal Conditions: Contributions to Standardization of Simulant Fluids and Analytical Methods. Chem Res Toxicol 2022; 35:963-980. [PMID: 35593714 PMCID: PMC9215348 DOI: 10.1021/acs.chemrestox.1c00418] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Indexed: 01/08/2023]
Abstract
Dissolution of inhaled engineered nanomaterials (ENM) under physiological conditions is essential to predict the clearance of the ENM from the lungs and to assess their biodurability and the potential effects of released ions. Alveolar macrophage (AM) lysosomes contain a pH 4.5 saline brine with enzymes and other components. Different types of artificial phagolysosomal simulant fluids (PSFs) have been developed for dissolution testing, but the consequence of using different media is not known. In this study, we tested to which extent six fundamentally different PSFs affected the ENM dissolution kinetics and particle size as determined by a validated transmission electron microscopy (TEM) image analysis. Three lysosomal simulant media were consistent with each other and with in vivo clearance. These media predict the quick dissolution of ZnO, the partial dissolution of SiO2, and the very slow dissolution of TiO2. The valid media use either a mix of organic acids (with the total concentration below 0.5 g/L, thereof citric acid below 0.15 g/L) or another organic acid (KH phthalate). For several ENM, including ZnO, BaSO4, and CeO2, all these differences induce only minor modulation of the dissolution rates. Only for TiO2 and SiO2, the interaction with specific organic acids is highly sensitive, probably due to sequestration of the ions, and can lead to wrong predictions when compared to the in vivo behavior. The media that fail on TiO2 and SiO2 dissolution use citric acid at concentrations above 5 g/L (up to 28 g/L). In the present selection of ENM, fluids, and methods, the different lysosomal simulant fluids did not induce changes of particle morphology, except for small changes in SiO2 and BaSO4 particles most likely due to ion dissolution, reprecipitation, and coalescence between neighboring particles. Based on the current evidence, the particle size by TEM analysis is not a sufficiently sensitive analytical method to deduce the rate of ENM dissolution in physiological media. In summary, we recommend the standardization of ENM dissolution testing by one of the three valid lysosomal simulant fluids with determination of the dissolution rate and halftime by the quantification of ions. This recommendation was established for a continuous flow system but may be relevant as well for static (batch) solubility testing.
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Affiliation(s)
- Ilaria Zanoni
- CNR-ISTEC-National
Research Council of Italy, Institute of
Science and Technology for Ceramics, Faenza 48018, Italy
| | - Johannes G. Keller
- Department
of Material Physics and Analytics, BASF
SE, Ludwigshafen 67056, Germany
- Department
of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen 67056, Germany
| | - Ursula G. Sauer
- Scientific
Consultancy-Animal Welfare, Neubiberg 85579, Germany
| | - Philipp Müller
- Department
of Material Physics and Analytics, BASF
SE, Ludwigshafen 67056, Germany
| | - Lan Ma-Hock
- Department
of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen 67056, Germany
| | - Keld A. Jensen
- National
Research Centre for Work Environment (NRCWE), Copenhagen 2100, Denmark
| | - Anna Luisa Costa
- CNR-ISTEC-National
Research Council of Italy, Institute of
Science and Technology for Ceramics, Faenza 48018, Italy
| | - Wendel Wohlleben
- Department
of Material Physics and Analytics, BASF
SE, Ludwigshafen 67056, Germany
- Department
of Experimental Toxicology and Ecology, BASF SE, Ludwigshafen 67056, Germany
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24
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A yeast-based biosensor for silver nanoparticle accumulation and cellular dissolution. Biosens Bioelectron 2022; 205:114082. [DOI: 10.1016/j.bios.2022.114082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/02/2022] [Accepted: 02/06/2022] [Indexed: 11/22/2022]
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25
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Intestinal Absorption Study of a Granular Form of Ferric Pyrophosphate. Metabolites 2022; 12:metabo12050463. [PMID: 35629967 PMCID: PMC9145852 DOI: 10.3390/metabo12050463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/30/2022] [Accepted: 05/19/2022] [Indexed: 02/01/2023] Open
Abstract
Iron deficiency is one of the most prevalent nutritional disorders worldwide. The standard treatment involves iron supplementation, but this task is challenging because of poor solubility and organoleptic issues. Moreover, the need to increase iron bioavailability represents a challenge for treating iron-related disorders. In this study, gastroresistance and iron intestinal absorption of an innovative granular formulation composed of ferric pyrophosphate, modified starch and phospholipids branded as Ferro Fosfosoma® was investigated. Gastroresistant properties were studied using standard protocols, and a bioaccessible fraction was obtained by exposing a food supplement to in vitro digestion. This fraction was used for investigating iron absorption in Caco-2 and human follicle-associated intestinal epithelium (FAE) models. Ferro Fosfosoma® showed an improved resistance to gastric digestion and higher intestinal absorption than ferric pyrophosphate salt used as a control in both models. In the FAE model, Ferro Fosfosoma® induces larger iron absorption than in the Caco-2 monolayer, most likely due to the transcytosis ability of M cells. The larger iron absorption in the Ferro Fosfosoma®-treated FAE model corresponds to higher ferritin level, proving physiological iron handling that was once delivered by granular formulation. Finally, the formulation did not induce any alterations in viability and barrier integrity. To conclude, Ferro Fosfosoma® favors iron absorption and ferritin expression, while preserving any adverse effects.
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26
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Cebadero-Domínguez Ó, Jos A, Cameán AM, Cătunescu GM. Hazard characterization of graphene nanomaterials in the frame of their food risk assessment: A review. Food Chem Toxicol 2022; 164:113014. [PMID: 35430331 DOI: 10.1016/j.fct.2022.113014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/04/2022] [Accepted: 04/11/2022] [Indexed: 12/11/2022]
Abstract
Different applications have been suggested for graphene nanomaterials (GFNs) in the food and feed chain. However, it is necessary to perform a risk assessment before they become market-ready, and when consumer exposure is demonstrated. For this purpose, the European Food Safety Authority (EFSA) has published a guidance that has been recently updated. In this sense, the aim of this study is to identify and characterise toxicological hazards related to GFNs after oral exposure. Thus, existing scientific literature in relation to in vitro degradation studies, in vitro and in vivo genotoxicity, toxicokinetics data, in vivo oral studies, and other in-depth studies such as effects on the microbiome has been revised. The obtained results showed that the investigations performed up to now did not follow internationally agreed-upon test guidelines. Moreover, GFNs seemed to resist gastrointestinal digestion and were able to be absorbed, distributed, and excreted, inducing toxic effects at different levels, including genotoxicity. Also, dose has an important role as it has been reported that low doses are more toxic than high doses because GFNs tend to aggregate in the digestive system, changing the internal exposure scenario. Thus, further studies including a thorough toxicological evaluation are required to protect consumer's safety.
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Affiliation(s)
| | - Angeles Jos
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, Spain.
| | - Ana M Cameán
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, Spain
| | - Giorgiana M Cătunescu
- University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăștur 3-5, 400372, Cluj-Napoca, Romania
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27
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A New Look at the Effects of Engineered ZnO and TiO2 Nanoparticles: Evidence from Transcriptomics Studies. NANOMATERIALS 2022; 12:nano12081247. [PMID: 35457956 PMCID: PMC9031840 DOI: 10.3390/nano12081247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 01/16/2023]
Abstract
Titanium dioxide (TiO2) and zinc oxide (ZnO) nanoparticles (NPs) have attracted a great deal of attention due to their excellent electrical, optical, whitening, UV-adsorbing and bactericidal properties. The extensive production and utilization of these NPs increases their chances of being released into the environment and conferring unintended biological effects upon exposure. With the increasingly prevalent use of the omics technique, new data are burgeoning which provide a global view on the overall changes induced by exposures to NPs. In this review, we provide an account of the biological effects of ZnO and TiO2 NPs arising from transcriptomics in in vivo and in vitro studies. In addition to studies on humans and mice, we also describe findings on ecotoxicology-related species, such as Danio rerio (zebrafish), Caenorhabditis elegans (nematode) or Arabidopsis thaliana (thale cress). Based on evidence from transcriptomics studies, we discuss particle-induced biological effects, including cytotoxicity, developmental alterations and immune responses, that are dependent on both material-intrinsic and acquired/transformed properties. This review seeks to provide a holistic insight into the global changes induced by ZnO and TiO2 NPs pertinent to human and ecotoxicology.
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28
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Role of a Novel Silver Fir (Abies alba) Extract, Abigenol®/AlbiPhenol®, in Modulating Cardiovascular Disorders: Key Factors. Antioxidants (Basel) 2022; 11:antiox11040618. [PMID: 35453303 PMCID: PMC9024870 DOI: 10.3390/antiox11040618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 12/05/2022] Open
Abstract
Cardiovascular diseases (CVDs) represent the leading cause of death worldwide, being responsible for about one third of deaths. Among CVDs, coronary artery diseases (CADs) are characterized by vascular endothelium dysfunction due to oxidative and inflammatory damages, the oxidation of circulating low-density lipoproteins (LDL) and high-density lipoproteins (HDL), and the production of ROS in the steatotic liver with the consequent increase of lipids and cholesterol. Together with CADs, heart failure (HF) represents another high-mortality rate CVD. A major risk factor for HF is hypertension that is accompanied by oxidative stress. Phytoextracts, rich in antioxidant and anti-inflammatory compounds, may have therapeutic value as they can interfere with several CVDs risk factors. In this work, a novel silver fir (Abies alba) bark extract, Abigenol®/AlbiPhenol®, was studied. First, Abigenol®/AlbiPhenol® cytotoxicity, bioaccessibility and bioavailability were evaluated by using an in vitro digestion model. Abigenol®/AlbiPhenol® was shown to be non-cytotoxic and showed good bioaccessibility. Then, by using in vitro hepatic, cardiac and vascular models, its antioxidant and anti-steatotic properties were assessed. Abigenol®/AlbiPhenol® showed an effective antioxidant action, and it was able to inhibit LDL and HDL oxidation, the main actors in atherosclerotic plaque formation. In steatotic conditions, Abigenol®/AlbiPhenol® induces decreased lipid and cholesterol accumulation in hepatocytes. In addition, in a cardiac model, the formulation reduced the activity of the hypertension-related angiotensin-converting enzyme (ACE). Altogether, these findings reveal a potential application of Abigenol®/AlbiPhenol® in the prevention and treatment of CVDs.
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29
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Moracci L, Sensi F, Biccari A, Crotti S, Gaio E, Benetti F, Traldi P, Pucciarelli S, Agostini M. An investigation on [5 fluorouracil and epigallocatechin-3-gallate] complex activity on HT-29 cell death and its stability in gastrointestinal fluid. Oncotarget 2022; 13:476-489. [PMID: 35251495 PMCID: PMC8893781 DOI: 10.18632/oncotarget.28207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/17/2022] [Indexed: 12/24/2022] Open
Abstract
Recently an enhancement of the sensitivity of colorectal cancer (CRC) cells by 5-fluorouracil (5FU) due to the concurrent treatment with epigallocatechin-3-gallate (EGCG) has been found. In the present paper, to investigate on this aspect, adenocarcinoma cells HT29 were treated with 5FU, EGCG and an equimolar mixture of 5FU and EGCG ([5FU+EGCG]) and cell viability was determined. While 5FU exhibits a clear activity, EGCG alone does not express any activity. However by treating the cells with [5FU+EGCG] a strong effect of EGCG is evidenced: the sensitivity of HT29 cells to 5FU was increased by 12-fold. A simulation of the behavior of [5FU+EGCG] in different compartments of the gastrointestinal digestion model was also performed. 5FU and EGCG solubilized into a mixture of digestive fluids analyzed by mass spectrometry did not lead to signals of 5FU, EGCG and the related complex, while by diluting the solution they become detectable. On the contrary, when 5FU and EGCG are submitted to the step-by-step digestion model procedure, the analysis did not show the presence of 5FU, EGCG and [5FU+EGCG]. This behaviour could be ascribed to the instability of these compounds due to the too severe digestion conditions and/or to the complexity of the matrix which could lead in ESI conditions to the suppression of the signals of the analytes of interest.
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Affiliation(s)
- Laura Moracci
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.,General Surgical Clinic 3, Department of Surgical, Oncological and Gastroentrological Sciences, University of Padua, Padova, Italy
| | - Francesca Sensi
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.,Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Mestre, Venice, Italy
| | - Andrea Biccari
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.,General Surgical Clinic 3, Department of Surgical, Oncological and Gastroentrological Sciences, University of Padua, Padova, Italy
| | - Sara Crotti
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.,General Surgical Clinic 3, Department of Surgical, Oncological and Gastroentrological Sciences, University of Padua, Padova, Italy
| | - Elisa Gaio
- ECSIN-European Center for the Sustainable Impact of Nanotechnology, ECAMRICERT SRL, Padova, Italy
| | - Federico Benetti
- ECSIN-European Center for the Sustainable Impact of Nanotechnology, ECAMRICERT SRL, Padova, Italy
| | - Pietro Traldi
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Salvatore Pucciarelli
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.,General Surgical Clinic 3, Department of Surgical, Oncological and Gastroentrological Sciences, University of Padua, Padova, Italy
| | - Marco Agostini
- Nano-Inspired Biomedicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.,General Surgical Clinic 3, Department of Surgical, Oncological and Gastroentrological Sciences, University of Padua, Padova, Italy
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30
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Artificial Digestion of Polydisperse Copper Oxide Nanoparticles: Investigation of Effects on the Human In Vitro Intestinal Co-Culture Model Caco-2/HT29-MTX. TOXICS 2022; 10:toxics10030130. [PMID: 35324755 PMCID: PMC8955801 DOI: 10.3390/toxics10030130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 02/06/2023]
Abstract
Copper oxide nanoparticles (CuO-NP) are increasingly used in consumer-related products, which may result in increased oral ingestion. Digestion of particles can change their physicochemical properties and toxicity. Therefore, our aim was to simulate the gastrointestinal tract using a static in vitro digestion model. Toxic properties of digested and undigested CuO-NP were compared using an epithelial mono-culture (Caco-2) and a mucus-secreting co-culture model (Caco-2/HT29-MTX). Effects on intestinal barrier integrity, permeability, cell viability and apoptosis were analyzed. CuO-NP concentrations of 1, 10 and 100 µg mL−1 were used. Particle characterization by dynamic light scattering and transmission electron microscopy showed similar mean particle sizes before and after digestion, resulting in comparable delivered particle doses in vitro. Only slight effects on barrier integrity and cell viability were detected for 100 µg mL−1 CuO-NP, while the ion control CuCl2 always caused significantly higher adverse effects. The utilized cell models were not significantly different. In summary, undigested and digested CuO-NP show comparable effects on the mono-/co-cultures, which are weaker than those of copper ions. Only in the highest concentration, CuO-NP showed weak effects on barrier integrity and cell viability. Nevertheless, a slightly increased apoptosis rate indicates existing cellular stress, which gives reason for further investigations.
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31
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Laycock A, Clark NJ, Clough R, Smith R, Handy RD. Determination of metallic nanoparticles in biological samples by single particle ICP-MS: a systematic review from sample collection to analysis. ENVIRONMENTAL SCIENCE. NANO 2022; 9:420-453. [PMID: 35309016 PMCID: PMC8852815 DOI: 10.1039/d1en00680k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/26/2021] [Indexed: 05/04/2023]
Abstract
A systematic review of the use of single particle ICP-MS to analyse engineered nanomaterials (ENMs) in biological samples (plants, animals, body fluids) has highlighted that efforts have focused on a select few types of ENMs (e.g., Ag and TiO2) and there is a lack of information for some important tissues (e.g., reproductive organs, skin and fatty endocrine organs). The importance of sample storage is often overlooked but plays a critical role. Careful consideration of the ENM and matrix composition is required to select an appropriate protocol to liberate ENMs from a tissue whilst not promoting the transformation of them, or genesis of new particulates. A 'one size fits all' protocol, applicable to all possible types of ENM and biological matrices, does not seem practical. However, alkaline-based extractions would appear to show greater promise for wide applicability to animal tissues, although enzymatic approaches have a role, especially for plant tissues. There is a lack of consistency in metrics reported and how they are determined (e.g. size limit of detection, and proportions of recovery), making comparison between some studies more difficult. In order to establish standardised protocols for regulatory use, effort is needed to: develop certified reference materials, achieve international agree on nomenclature and the use of control samples, and to create a decision tree to help select the best sample preparation for the type of tissue matrix.
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Affiliation(s)
- Adam Laycock
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus Didcot OX11 0RQ UK
| | - Nathaniel J Clark
- School of Biological and Marine Sciences, University of Plymouth Drake Circus Plymouth PL4 8AA UK
| | - Robert Clough
- Analytical Research Facility, School of Geography, Earth and Environmental Sciences, University of Plymouth Plymouth PL4 8AA UK
| | - Rachel Smith
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus Didcot OX11 0RQ UK
| | - Richard D Handy
- School of Biological and Marine Sciences, University of Plymouth Drake Circus Plymouth PL4 8AA UK
- Visiting Professor, Department of Nutrition, Cihan University-Erbil Kurdistan Region Iraq
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Martins C, Alvito P, Assunção R. Nanomaterials in Foods and Human Digestion: An Important Layer in the Assessment of Potential Toxic Effects. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1357:403-414. [DOI: 10.1007/978-3-030-88071-2_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chakraborty K, Dhara S. Polygalacto-fucopyranose biopolymer structured nanoparticle conjugate attenuates glucocorticoid-induced osteoporosis: An in vivo study. Int J Biol Macromol 2021; 190:739-753. [PMID: 34509519 DOI: 10.1016/j.ijbiomac.2021.09.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/26/2021] [Accepted: 09/03/2021] [Indexed: 12/23/2022]
Abstract
Naturally occurring polysaccharide-structured nanoparticles have developed as promising materials for treatment of bone health disorders. Silver nanoparticle (ST-AgNP) structured from sulfated polygalacto-fucopyranose comprising of recurring structural entities of 2-SO3-α-(1 → 3)-fucopyranose and 6-O-acetyl-β-(1 → 4)-galactopyranose isolated from marine macroalga Sargassum tenerrimum demonstrated potential activities associated with osteogenesis. Subsequent treatment with ST-AgNP, activity of alkaline phosphatase (63 mU/mg) was raised in osteoblast stem cells (human mesenchymal, hMSC) than that in control (30 mU/mg). Intense growth of mineralized nodule on the surface of hMSC was apparent following treatment with ST-AgNP. Increased population of bone morphogenic protein-2 (23%) and osteocalcin+ cells (50%) on M2 macrophages were apparent following treatment with ST-AgNP (0.25 mg/mL). Glucocorticoid-induced in vivo animal model studies of ST-AgNP exhibited significant recovery of serum biochemical parameters along with serum estradiol and parathyroid hormone compared to disease control. Disease-induced groups treated with ST-AgNP showed the disappearance of osteoporotic cavities in the trabecular bone. Following treatment with ST-AgNP, serum calcium and phosphorus contents were significantly recovered.
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Affiliation(s)
- Kajal Chakraborty
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North P.O., P.B. No. 1603, Cochin 682018, Kerala State, India.
| | - Shubhajit Dhara
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North P.O., P.B. No. 1603, Cochin 682018, Kerala State, India; Department of Chemistry, Mangalore University, Mangalagangothri 574199, Karnataka State, India
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Ali SS, Al-Tohamy R, Koutra E, Moawad MS, Kornaros M, Mustafa AM, Mahmoud YAG, Badr A, Osman MEH, Elsamahy T, Jiao H, Sun J. Nanobiotechnological advancements in agriculture and food industry: Applications, nanotoxicity, and future perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 792:148359. [PMID: 34147795 DOI: 10.1016/j.scitotenv.2021.148359] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/05/2021] [Accepted: 06/06/2021] [Indexed: 05/12/2023]
Abstract
The high demand for sufficient and safe food, and continuous damage of environment by conventional agriculture are major challenges facing the globe. The necessity of smart alternatives and more sustainable practices in food production is crucial to confront the steady increase in human population and careless depletion of global resources. Nanotechnology implementation in agriculture offers smart delivery systems of nutrients, pesticides, and genetic materials for enhanced soil fertility and protection, along with improved traits for better stress tolerance. Additionally, nano-based sensors are the ideal approach towards precision farming for monitoring all factors that impact on agricultural productivity. Furthermore, nanotechnology can play a significant role in post-harvest food processing and packaging to reduce food contamination and wastage. In this review, nanotechnology applications in the agriculture and food sector are reviewed. Implementations of nanotechnology in agriculture have included nano- remediation of wastewater for land irrigation, nanofertilizers, nanopesticides, and nanosensors, while the beneficial effects of nanomaterials (NMs) in promoting genetic traits, germination, and stress tolerance of plants are discussed. Furthermore, the article highlights the efficiency of nanoparticles (NPs) and nanozymes in food processing and packaging. To this end, the potential risks and impacts of NMs on soil, plants, and human tissues and organs are emphasized in order to unravel the complex bio-nano interactions. Finally, the strengths, weaknesses, opportunities, and threats of nanotechnology are evaluated and discussed to provide a broad and clear view of the nanotechnology potentials, as well as future directions for nano-based agri-food applications towards sustainability.
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Affiliation(s)
- Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Eleni Koutra
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 1 Karatheodori Str., University Campus, 26504 Patras, Greece; INVALOR: Research Infrastructure for Waste Valorization and Sustainable Management, University Campus, 26504 Patras, Greece
| | - Mohamed S Moawad
- Department of Toxicology and Forensic Medicine, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; Nanoscience Program, Zewail City of Science and Technology, 6th of October, Giza 12588, Egypt
| | - Michael Kornaros
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 1 Karatheodori Str., University Campus, 26504 Patras, Greece; INVALOR: Research Infrastructure for Waste Valorization and Sustainable Management, University Campus, 26504 Patras, Greece
| | - Ahmed M Mustafa
- State Key Laboratory of Pollution Control and Resourses Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Department of Agricultural Engineering, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt
| | - Yehia A-G Mahmoud
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Abdelfattah Badr
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, Egypt
| | - Mohamed E H Osman
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Haixin Jiao
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
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Duan L, Zhang L, Yan F, Liu Z, Bao H, Liu T. Solubility of ZnO Nanoparticles in Food Media: An Analysis Using a Novel Semiclosed Dynamic System. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11065-11073. [PMID: 34499492 DOI: 10.1021/acs.jafc.1c04344] [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] [Indexed: 06/13/2023]
Abstract
Food media can affect the solubility of zinc oxide nanoparticles (ZnO NPs). Moreover, when a single digestive fluid and a three-step digestion system were applied to investigate the fate of ZnO NPs, several contradictory results were obtained. Here, we manipulated a novel semiclosed in vitro dynamic digestion system to investigate the difference in the released ionic zinc (Zn2+) content in three types of artificial fluids in the presence of different food media. The results show that there was a significant difference in the released Zn2+ content between the three different types of digestion systems in the presence of the same food media. In addition, the released Zn2+ content was significantly different when different types of food media were applied to the same digestion system. These results demonstrate that the different levels of released Zn2+ content can be ascribed to the difference in digestion systems and food media.
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Affiliation(s)
- Luoyan Duan
- Laboratory of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No. 2 West Road Yuanmingyuan, Beijing 100193, P. R. China
| | - Lei Zhang
- China National Center for Food Safety Risk Assessment, No. 37, Gangue Road, Chaoyang District, Beijing 100022, People's Republic of China
| | - Feiyi Yan
- Laboratory of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No. 2 West Road Yuanmingyuan, Beijing 100193, P. R. China
| | - Zhaoping Liu
- China National Center for Food Safety Risk Assessment, No. 37, Gangue Road, Chaoyang District, Beijing 100022, People's Republic of China
| | - Huihui Bao
- China National Center for Food Safety Risk Assessment, No. 37, Gangue Road, Chaoyang District, Beijing 100022, People's Republic of China
| | - Tianlong Liu
- Laboratory of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No. 2 West Road Yuanmingyuan, Beijing 100193, P. R. China
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More S, Bampidis V, Benford D, Bragard C, Halldorsson T, Hernández‐Jerez A, Hougaard Bennekou S, Koutsoumanis K, Lambré C, Machera K, Naegeli H, Nielsen S, Schlatter J, Schrenk D, Silano (deceased) V, Turck D, Younes M, Castenmiller J, Chaudhry Q, Cubadda F, Franz R, Gott D, Mast J, Mortensen A, Oomen AG, Weigel S, Barthelemy E, Rincon A, Tarazona J, Schoonjans R. Guidance on risk assessment of nanomaterials to be applied in the food and feed chain: human and animal health. EFSA J 2021; 19:e06768. [PMID: 34377190 PMCID: PMC8331059 DOI: 10.2903/j.efsa.2021.6768] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2021] [Indexed: 02/08/2023] Open
Abstract
The EFSA has updated the Guidance on risk assessment of the application of nanoscience and nanotechnologies in the food and feed chain, human and animal health. It covers the application areas within EFSA's remit, including novel foods, food contact materials, food/feed additives and pesticides. The updated guidance, now Scientific Committee Guidance on nano risk assessment (SC Guidance on Nano-RA), has taken account of relevant scientific studies that provide insights to physico-chemical properties, exposure assessment and hazard characterisation of nanomaterials and areas of applicability. Together with the accompanying Guidance on Technical requirements for regulated food and feed product applications to establish the presence of small particles including nanoparticles (Guidance on Particle-TR), the SC Guidance on Nano-RA specifically elaborates on physico-chemical characterisation, key parameters that should be measured, methods and techniques that can be used for characterisation of nanomaterials and their determination in complex matrices. The SC Guidance on Nano-RA also details aspects relating to exposure assessment and hazard identification and characterisation. In particular, nanospecific considerations relating to in vitro/in vivo toxicological studies are discussed and a tiered framework for toxicological testing is outlined. Furthermore, in vitro degradation, toxicokinetics, genotoxicity, local and systemic toxicity as well as general issues relating to testing of nanomaterials are described. Depending on the initial tier results, additional studies may be needed to investigate reproductive and developmental toxicity, chronic toxicity and carcinogenicity, immunotoxicity and allergenicity, neurotoxicity, effects on gut microbiome and endocrine activity. The possible use of read-across to fill data gaps as well as the potential use of integrated testing strategies and the knowledge of modes or mechanisms of action are also discussed. The Guidance proposes approaches to risk characterisation and uncertainty analysis.
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Pem B, Ćurlin M, Domazet Jurašin D, Vrček V, Barbir R, Micek V, Fratila RM, de la Fuente JM, Vinković Vrček I. Fate and transformation of silver nanoparticles in different biological conditions. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:665-679. [PMID: 34327112 PMCID: PMC8275868 DOI: 10.3762/bjnano.12.53] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/23/2021] [Indexed: 05/05/2023]
Abstract
The exploitation of silver nanoparticles (AgNPs) in biomedicine represents more than one third of their overall application. Despite their wide use and significant amount of scientific data on their effects on biological systems, detailed insight into their in vivo fate is still lacking. This study aimed to elucidate the biotransformation patterns of AgNPs following oral administration. Colloidal stability, biochemical transformation, dissolution, and degradation behaviour of different types of AgNPs were evaluated in systems modelled to represent biological environments relevant for oral administration, as well as in cell culture media and tissue compartments obtained from animal models. A multimethod approach was employed by implementing light scattering (dynamic and electrophoretic) techniques, spectroscopy (UV-vis, atomic absorption, nuclear magnetic resonance) and transmission electron microscopy. The obtained results demonstrated that AgNPs may transform very quickly during their journey through different biological conditions. They are able to degrade to an ionic form and again reconstruct to a nanoparticulate form, depending on the biological environment determined by specific body compartments. As suggested for other inorganic nanoparticles by other research groups, AgNPs fail to preserve their specific integrity in in vivo settings.
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Affiliation(s)
- Barbara Pem
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000 Zagreb, Croatia
| | - Marija Ćurlin
- University of Zagreb, School of Medicine, Šalata 12, 10 000 Zagreb, Croatia
| | - Darija Domazet Jurašin
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Valerije Vrček
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10 000 Zagreb, Croatia
| | - Rinea Barbir
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000 Zagreb, Croatia
| | - Vedran Micek
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000 Zagreb, Croatia
| | - Raluca M Fratila
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Jesus M de la Fuente
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000 Zagreb, Croatia
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Recordati C, De Maglie M, Cella C, Argentiere S, Paltrinieri S, Bianchessi S, Losa M, Fiordaliso F, Corbelli A, Milite G, Aureli F, D’Amato M, Raggi A, Cubadda F, Soldati S, Lenardi C, Scanziani E. Repeated oral administration of low doses of silver in mice: tissue distribution and effects on central nervous system. Part Fibre Toxicol 2021; 18:23. [PMID: 34134756 PMCID: PMC8207582 DOI: 10.1186/s12989-021-00418-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/02/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Widespread use of silver in its different forms raises concerns about potential adverse effects after ingestion, the main exposure route for humans. The aim of this study was to investigate in CD-1 (ICR) male mice the tissue distribution and in vivo effects of 4-week oral exposure to 0.25 and 1 mg Ag/kg bw 10 nm citrate coated silver nanoparticles (AgNPs) and 1 mg Ag/kg bw silver acetate (AgAc) at the end of treatment (EoT) and after 4 weeks of recovery. RESULTS There were no treatment-related clinical signs and mortality, and no significant effects on body and organ weights at the EoT and after recovery. Treatment-related changes in hematology and clinical chemistry were found after recovery, the most relevant being a dose-dependent lymphopenia and increased triglycerides in AgNP-treated mice, and increased levels of urea in all treated groups, associated with decreased albumin only in AgAc-treated mice. At the EoT the highest silver concentration determined by Triple Quadrupole ICP-MS analysis was found in the brain, followed by testis, liver, and spleen; much lower concentrations were present in the small intestine and kidney. Tissue silver concentrations were slightly higher after exposure to AgAc than AgNPs and dose dependent for AgNPs. After recovery silver was still present in the brain and testis, highlighting slow elimination. No histopathological changes and absence of silver staining by autometallography were observed in the organs of treated mice. At the EoT GFAP (astrocytes) immunoreactivity was significantly increased in the hippocampus of AgNP-treated mice in a dose-dependent manner and Iba1 (microglial cells) immunoreactivity was significantly increased in the cortex of 1 mg/kg bw AgNP-treated mice. After recovery, a significant reduction of Iba1 was observed in the cortex of all treated groups. TEM analysis of the hippocampus revealed splitting of basement membrane of the capillaries and swelling of astrocytic perivascular end-feet in 1 mg/kg bw AgNP- and AgAc-treated mice at the EoT. CONCLUSIONS Our study revealed accumulation and slow clearance of silver in the brain after oral administration of 10 nm AgNPs and AgAc at low doses in mice, associated with effects on glial cells and ultrastructural alterations of the Blood-Brain Barrier.
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Affiliation(s)
- Camilla Recordati
- Dipartimento di Medicina Veterinaria (DIMEVET), Università degli Studi di Milano, 26900 Lodi, Italy
- Fondazione Unimi, 20139 Milan, Italy
| | - Marcella De Maglie
- Dipartimento di Medicina Veterinaria (DIMEVET), Università degli Studi di Milano, 26900 Lodi, Italy
- Fondazione Unimi, 20139 Milan, Italy
| | - Claudia Cella
- Fondazione Unimi, 20139 Milan, Italy
- Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milan, Italy
| | - Simona Argentiere
- Fondazione Unimi, 20139 Milan, Italy
- Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milan, Italy
| | - Saverio Paltrinieri
- Dipartimento di Medicina Veterinaria (DIMEVET), Università degli Studi di Milano, 26900 Lodi, Italy
| | | | | | - Fabio Fiordaliso
- Unit of Bio-imaging, Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | - Alessandro Corbelli
- Unit of Bio-imaging, Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | | | - Federica Aureli
- Istituto Superiore di Sanità - National Institute of Health, 00161 Rome, Italy
| | - Marilena D’Amato
- Istituto Superiore di Sanità - National Institute of Health, 00161 Rome, Italy
| | - Andrea Raggi
- Istituto Superiore di Sanità - National Institute of Health, 00161 Rome, Italy
| | - Francesco Cubadda
- Istituto Superiore di Sanità - National Institute of Health, 00161 Rome, Italy
| | | | - Cristina Lenardi
- Fondazione Unimi, 20139 Milan, Italy
- Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milan, Italy
- Centro Interdisciplinare Materiali e Interfacce Nanostrutturati (CIMAINA), Università degli Studi di Milano, 20133 Milan, Italy
| | - Eugenio Scanziani
- Dipartimento di Medicina Veterinaria (DIMEVET), Università degli Studi di Milano, 26900 Lodi, Italy
- Fondazione Unimi, 20139 Milan, Italy
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Huang X, Tang M. Review of gut nanotoxicology in mammals: Exposure, transformation, distribution and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145078. [PMID: 33940715 DOI: 10.1016/j.scitotenv.2021.145078] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
Nanomaterials are increasingly used in food processing, daily necessities and other fields due to their excellent properties, and increase the environmental contamination. Human beings will inevitably come into contact with these nanomaterials through multiple exposure routes especially oral exposure. The intestine is an important organ for nutrient absorption and physiologic barrier, which may be the main target of nanoparticles (NPs) exposure. However, for a long time, research on the toxicity of NPs has mainly focused on organs such as liver, kidney and brain. There are few assessment data over the intestinal safety. Recently, as reported, NPs can be translocated to the intestinal part in mammals and would be distributed in different substructures of intestines, thus causing damage to the structure and function of the intestine, in which the gut microbiota and its metabolites play important roles. In addition, due to the special physiological environment of gut, nanomaterials will undergo complex transformations that may cause different biological effects from their original form. Therefore, this review aims to assess the potential adverse effects of NPs on intestine and its possible mechanisms through the results of in vivo mammalian experiments. In addition, the exposure pathway, biodistribution and biotransformation of NPs in the intestine are also considered. We hope this review will arouse people's attention to the intestinal nanotoxicology and provide basic information for further related studies.
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Affiliation(s)
- Xiaoquan Huang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China.
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Dietary Nanoparticles Interact with Gluten Peptides and Alter the Intestinal Homeostasis Increasing the Risk of Celiac Disease. Int J Mol Sci 2021; 22:ijms22116102. [PMID: 34198897 PMCID: PMC8201331 DOI: 10.3390/ijms22116102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/15/2021] [Accepted: 06/02/2021] [Indexed: 12/22/2022] Open
Abstract
The introduction of metallic nanoparticles (mNPs) into the diet is a matter of concern for human health. In particular, their effect on the gastrointestinal tract may potentially lead to the increased passage of gluten peptides and the activation of the immune response. In consequence, dietary mNPs could play a role in the increasing worldwide celiac disease (CeD) incidence. We evaluated the potential synergistic effects that peptic-tryptic-digested gliadin (PT) and the most-used food mNPs may induce on the intestinal mucosa. PT interaction with mNPs and their consequent aggregation was detected by transmission electron microscopy (TEM) analyses and UV–Vis spectra. In vitro experiments on Caco-2 cells proved the synergistic cytotoxic effect of PT and mNPs, as well as alterations in the monolayer integrity and tight junction proteins. Exposure of duodenal biopsies to gliadin plus mNPs triggered cytokine production, but only in CeD biopsies. These results suggest that mNPs used in the food sector may alter intestinal homeostasis, thus representing an additional environmental risk factor for the development of CeD.
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Mortensen NP, Moreno Caffaro M, Aravamudhan S, Beeravalli L, Prattipati S, Snyder RW, Watson SL, Patel PR, Weber FX, Montgomery SA, Sumner SJ, Fennell TR. Simulated Gastric Digestion and In Vivo Intestinal Uptake of Orally Administered CuO Nanoparticles and TiO 2 E171 in Male and Female Rat Pups. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1487. [PMID: 34199726 PMCID: PMC8230348 DOI: 10.3390/nano11061487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 12/11/2022]
Abstract
Oral exposure to nanoparticles (NPs) during early life is an understudied area. The goals of this study were to evaluate the effect of pre-weaned rat gastric fluids on 50 nm CuO NPs and TiO2 E171 in vitro, and to evaluate uptake in vivo. The NP uptake was studied in vivo in male and female Sprague-Dawley rat pups following oral administration of four consecutive daily doses of 10 mg/kg CuO NPs, TiO2 E171, or vehicle control (water) between postnatal day (PND) 7-10. Rat pups were sacrificed on either PND10 or PND21. Simulated digestion led to dissolution of CuO NPs at the later ages tested (PND14 and PND21, but not PND7). In vivo intestinal uptake of CuO NPs and TiO2 E171 was observed by hyperspectral imaging of intestinal cross sections. Brightfield microscopy showed that the number of immune cells increased in the intestinal tissue following NP administration. Orally administered NPs led to low intestinal uptake of NPs and an increase in immune cells in the small and large intestine, suggesting that oral exposure to NPs during early life may lead to irritation or a low-grade inflammation. The long-term impact of increased immune cells in the intestinal tract during early life is unknown.
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Affiliation(s)
- Ninell P. Mortensen
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
| | - Maria Moreno Caffaro
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
| | - Shyam Aravamudhan
- Joint School of Nanoscience and Nanoengineering, 2907 East Gate City Blvd., Greensboro, NC 27401, USA; (S.A.); (L.B.); (S.P.)
| | - Lakshmi Beeravalli
- Joint School of Nanoscience and Nanoengineering, 2907 East Gate City Blvd., Greensboro, NC 27401, USA; (S.A.); (L.B.); (S.P.)
| | - Sharmista Prattipati
- Joint School of Nanoscience and Nanoengineering, 2907 East Gate City Blvd., Greensboro, NC 27401, USA; (S.A.); (L.B.); (S.P.)
| | - Rodney W. Snyder
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
| | - Scott L. Watson
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
| | - Purvi R. Patel
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
| | - Frank X. Weber
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
| | - Stephanie A. Montgomery
- Department of Pathology and Laboratory Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Susan J. Sumner
- UNC Nutrition Research Institute, The University of North Carolina at Chapel Hill, 500 Laureate Way, Kannapolis, NC 28081, USA;
| | - Timothy R. Fennell
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC 27709, USA; (M.M.C.); (R.W.S.); (S.L.W.); (P.R.P.); (F.X.W.); (T.R.F.)
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42
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Taboada-López MV, Vázquez-Expósito G, Domínguez-González R, Herbello-Hermelo P, Bermejo-Barrera P, Moreda-Piñeiro A. Biopersistence rate of metallic nanoparticles in the gastro-intestinal human tract (stage 0 of the EFSA guidance for nanomaterials risk assessment). Food Chem 2021; 360:130002. [PMID: 33975071 DOI: 10.1016/j.foodchem.2021.130002] [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: 12/07/2020] [Revised: 04/06/2021] [Accepted: 04/30/2021] [Indexed: 11/25/2022]
Abstract
The European Food Safety Authority has published a guidance regarding risk assessment of nanomaterials in food and feed. Following these recommendations, an in vitro gastrointestinal digestion has been applied to study the biopersistence of TiO2 and Ag NPs in standards, molluscs and surimi. TiO2 NPs standards and TiO2 NPs/ TiO2 microparticles from E171 were not found to be degraded. Ag NPs proved to be more degradable than TiO2 NPs, but the biopersistence rates were higher than 12%, which means that Ag NPs are also biopersistent. Findings for seafood are quite similar to those obtained for TiO2 NPs and Ag NPs standards, although the calculation of the biopersistence rate proposed by the EFSA was not found to be straightforward for foodstuff (the use of the NPs concentration in the sample instead of the NPs concentration at initial time (sample mixed with the gastric solution before enzymatic hydrolysis) has been proposed.
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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., 15782 Santiago de Compostela, Spain
| | - Gemma Vázquez-Expósito
- 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., 15782 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., 15782 Santiago de Compostela, Spain
| | - Paloma Herbello-Hermelo
- 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., 15782 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., 15782 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., 15782 Santiago de Compostela, Spain.
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43
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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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44
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Zhou P, Guo M, Cui X. Effect of food on orally-ingested titanium dioxide and zinc oxide nanoparticle behaviors in simulated digestive tract. CHEMOSPHERE 2021; 268:128843. [PMID: 33172667 DOI: 10.1016/j.chemosphere.2020.128843] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
Nanomaterials have been widely utilized in human daily life. The interaction between nanoparticles (NPs) and food matrices through oral ingestion is important for fate and potential toxicity of NPs. In this study, the interaction between NPs (i.e., titanium dioxide (TiO2) and zinc oxide (ZnO)) and food matrices (namely sucrose, protein powder, and corn oil) was investigated by use of an in vitro physiological model. Measurement using asymmetrical flow field-flow fractionation (AF4) showed that particle size of TiO2 NPs in saliva fluid decreased from 102 ± 6.21 nm (control) to 69.2 ± 6.90 and 81.9 ± 4.30 nm in protein powder and corn oil. Similar trend was also observed for ZnO. Compared with gastric fluid, micelles formed by corn oil in intestinal fluid further dispersed NPs, as indicated by approximately 11.1% and 13.2% decrease in particle size of TiO2 and ZnO NPs, respectively. Characterization of TEM, FTIR and AFM showed that a layer of biological corona was attached on surface of NPs in protein and oil. The XPS demonstrated that oil bound with NPs through forming covalent bonds, while protein bound with NPs through van der Waals force and electrostatic force for TiO2 and ZnO NPs, respectively. The result here demonstrated the importance of considering food effect when investigating the morphology and behavior of NPs after oral ingestion. This understanding was valuable in assessment of environmental fate and biological effects of NPs.
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Affiliation(s)
- Pengfei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Mengfan Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Xinyi Cui
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
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45
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Lyu Z, Ghoshdastidar S, Rekha KR, Suresh D, Mao J, Bivens N, Kannan R, Joshi T, Rosenfeld CS, Upendran A. Developmental exposure to silver nanoparticles leads to long term gut dysbiosis and neurobehavioral alterations. Sci Rep 2021; 11:6558. [PMID: 33753813 PMCID: PMC7985313 DOI: 10.1038/s41598-021-85919-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/25/2021] [Indexed: 12/13/2022] Open
Abstract
Due to their antimicrobial properties, silver nanoparticles (AgNPs) are used in a wide range of consumer products that includes topical wound dressings, coatings for biomedical devices, and food-packaging to extend the shelf-life. Despite their beneficial antimicrobial effects, developmental exposure to such AgNPs may lead to gut dysbiosis and long-term health consequences in exposed offspring. AgNPs can cross the placenta and blood–brain-barrier to translocate in the brain of offspring. The underlying hypothesis tested in the current study was that developmental exposure of male and female mice to AgNPs disrupts the microbiome–gut–brain axis. To examine for such effects, C57BL6 female mice were exposed orally to AgNPs at a dose of 3 mg/kg BW or vehicle control 2 weeks prior to breeding and throughout gestation. Male and female offspring were tested in various mazes that measure different behavioral domains, and the gut microbial profiles were surveyed from 30 through 120 days of age. Our study results suggest that developmental exposure results in increased likelihood of engaging in repetitive behaviors and reductions in resident microglial cells. Echo-MRI results indicate increased body fat in offspring exposed to AgNPs exhibit. Coprobacillus spp., Mucispirillum spp., and Bifidobacterium spp. were reduced, while Prevotella spp., Bacillus spp., Planococcaceae, Staphylococcus spp., Enterococcus spp., and Ruminococcus spp. were increased in those developmentally exposed to NPs. These bacterial changes were linked to behavioral and metabolic alterations. In conclusion, developmental exposure of AgNPs results in long term gut dysbiosis, body fat increase and neurobehavioral alterations in offspring.
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Affiliation(s)
- Zhen Lyu
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO, 65212, USA
| | - Shreya Ghoshdastidar
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA
| | - Karamkolly R Rekha
- Department of Radiology, University of Missouri, Columbia, MO, 65212, USA
| | - Dhananjay Suresh
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA
| | - Jiude Mao
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, 65212, USA.,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65212, USA
| | - Nathan Bivens
- DNA Core Facility, University of Missouri, Columbia, MO, 65212, USA
| | - Raghuraman Kannan
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA.,Department of Radiology, University of Missouri, Columbia, MO, 65212, USA
| | - Trupti Joshi
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO, 65212, USA. .,Department of Health Management and Informatics, University of Missouri, Columbia, MO, 65212, USA. .,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65212, USA. .,Bond Life Sciences Center, University of Missouri, Columbia, MO, 65212, USA.
| | - Cheryl S Rosenfeld
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, 65212, USA. .,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65212, USA. .,Bond Life Sciences Center, University of Missouri, Columbia, MO, 65212, USA. .,Genetics Area Program, University of Missouri, Columbia, MO, 65212, USA. .,Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO, 65212, USA. .,Department of Medical Pharmacology & Physiology, University of Missouri, Columbia, MO, 65212, USA.
| | - Anandhi Upendran
- Department of Medical Pharmacology & Physiology, University of Missouri, Columbia, MO, 65212, USA. .,MU-Institute of Clinical and Translational Science, University of Missouri, Columbia, MO, 65212, USA.
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46
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de Haan P, Santbergen MJC, van der Zande M, Bouwmeester H, Nielen MWF, Verpoorte E. A versatile, compartmentalised gut-on-a-chip system for pharmacological and toxicological analyses. Sci Rep 2021; 11:4920. [PMID: 33649376 PMCID: PMC7921645 DOI: 10.1038/s41598-021-84187-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 02/05/2021] [Indexed: 02/08/2023] Open
Abstract
A novel, integrated, in vitro gastrointestinal (GI) system is presented to study oral bioavailability parameters of small molecules. Three compartments were combined into one hyphenated, flow-through set-up. In the first compartment, a compound was exposed dynamically to enzymatic digestion in three consecutive microreactors, mimicking the processes of the mouth, stomach, and intestine. The resulting solution (chyme) continued to the second compartment, a flow-through barrier model of the intestinal epithelium allowing absorption of the compound and metabolites thereof. The composition of the effluents from the barrier model were analysed either offline by electrospray-ionisation-mass spectrometry (ESI-MS), or online in the final compartment using chip-based ESI-MS. Two model drugs, omeprazole and verapamil, were used to test the integrated model. Omeprazole was shown to be broken down upon treatment with gastric acid, but reached the cell barrier unharmed when introduced to the system in a manner emulating an enteric-coated formulation. In contrast, verapamil was unaffected by digestion. Finally, a reduced uptake of verapamil was observed when verapamil was introduced to the system dissolved in apple juice, a simple food matrix. It is envisaged that this integrated, compartmentalised GI system has potential for enabling future research in the fields of pharmacology, toxicology, and nutrition.
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Affiliation(s)
- Pim de Haan
- Pharmaceutical Analysis, Groningen Research Institute of Pharmacy, University of Groningen, P.O. Box 196, XB20, 9700 AD, Groningen, The Netherlands
- TI-COAST, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Milou J C Santbergen
- TI-COAST, Science Park 904, 1098 XH, Amsterdam, The Netherlands
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Meike van der Zande
- Wageningen Food Safety Research, Wageningen University & Research, P.O. Box 230, 6700 AE, Wageningen, The Netherlands
| | - Hans Bouwmeester
- Division of Toxicology, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Michel W F Nielen
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
- Wageningen Food Safety Research, Wageningen University & Research, P.O. Box 230, 6700 AE, Wageningen, The Netherlands
| | - Elisabeth Verpoorte
- Pharmaceutical Analysis, Groningen Research Institute of Pharmacy, University of Groningen, P.O. Box 196, XB20, 9700 AD, Groningen, The Netherlands.
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47
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Schneider T, Mittag A, Westermann M, Glei M. Impact of pH changes on metal oxide nanoparticle behaviour during artificial digestion. Food Funct 2021; 12:1452-1457. [PMID: 33522539 DOI: 10.1039/d0fo02842h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The physicochemical properties of orally ingested metal nanoparticles can be influenced by the conditions prevailing in the digestive tract. In our work, we demonstrate the strong influence of the pH value on particle fate using a simplified digestion approach to analyze magnesium oxide, copper oxide and zinc oxide nanoparticles and show why a separate consideration of the digestion parameters is necessary.
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Affiliation(s)
- Thomas Schneider
- Department of Nutritional Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, Dornburger Str. 24, Jena, Germany.
| | - Anna Mittag
- Department of Nutritional Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, Dornburger Str. 24, Jena, Germany.
| | - Martin Westermann
- Electron Microscopy Center, University Hospital Jena, Ziegelmühlenweg 1, Jena, Germany
| | - Michael Glei
- Department of Nutritional Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, Dornburger Str. 24, Jena, Germany.
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48
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Li M, Zhang C. Are silver nanoparticles better than triclosan as a daily antimicrobial? Answers from the perspectives of gut microbiome disruption and pathogenicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:143983. [PMID: 33302073 DOI: 10.1016/j.scitotenv.2020.143983] [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: 10/10/2020] [Revised: 11/15/2020] [Accepted: 11/15/2020] [Indexed: 05/23/2023]
Abstract
As an alternative to triclosan (TCS), the widespread use of silver nanoparticles (AgNPs) in daily products shows genuine potential. However, information regarding whether AgNPs are substantially better than TCS in their potential disruption of the gut microbiome and health effects is lacking. Using a simulator of the human intestinal microbial ecosystem (SHIME), we systemically compared the effects of TCS and AgNPs (at 1 μg/L and 30 μg/L) on the human gut microbiome in terms of changes in gut homeostasis, microbial community structure, antibiotic resistance profiles and abundances of opportunistic pathogens. Generally, TCS exerted more severe effects than AgNPs on gut disturbances (i.e., decreased production of short-chain fatty acids, increased contents of ammonium and total bile acids, and increased β-glucosidase activities) in a dose-dependent manner, whereas no clear dose effect was observed for the AgNP treatment because of potential nanoparticle transformation. The more serious effect of TCS than AgNPs on the microbiota composition was indicated by the dynamic increase in the Firmicutes/Bacteroidetes ratio determined using 16S rDNA sequencing. Metagenomic analyses revealed a more pronounced effect of TCS than AgNPs on the selection and dissemination of multiple resistance genes to antibiotics, TCS, and even Ag via the enrichment of genes encoding efflux pumps and mobile genetic elements. Consequently, the overgrowth of opportunistic pathogens was observed upon TCS exposure due to an imbalanced microbiome, in contrast to a slight increase in the abundance of some beneficial bacteria (i.e., Bifidobacterium) induced by the AgNP treatment. In conclusion, from the perspective of effects on gut health, AgNPs may prevail over TCS to some extent. However, the stress and potential selection of Ag resistance indicates the need for targeted surveillance of AgNP commercialization for daily use.
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Affiliation(s)
- Mingzhu Li
- School of Environment, Beijing Normal University, Beijing 100875, China; College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Chengdong Zhang
- School of Environment, Beijing Normal University, Beijing 100875, China.
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49
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Katarzyńska-Banasik D, Grzesiak M, Kowalik K, Sechman A. Administration of silver nanoparticles affects ovarian steroidogenesis and may influence thyroid hormone metabolism in hens (Gallus domesticus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111427. [PMID: 33049449 DOI: 10.1016/j.ecoenv.2020.111427] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/22/2020] [Accepted: 09/27/2020] [Indexed: 05/11/2023]
Abstract
This study aimed to determine the in vivo effect of silver nanoparticles (AgNPs) on the concentration of sex steroids (progesterone - P4, estradiol - E2, testosterone - T) and thyroid hormones (thyroxine - T4, triiodothyronine - T3) in the blood plasma as well as the messenger ribonucleic acid (mRNA) and protein expression of HSD3β, CYP17A1 and CYP19A1 enzymes and steroid hormone concentrations in chicken ovarian follicles. AgNPs did not affect serum steroid hormone levels, but increased T3 levels depending on the size and concentration of AgNPs. At the level of ovarian tissues, AgNPs: (i) affected the levels of E2 and T in prehierachical follicles; (ii) reduced the expression of CYP19A1 mRNA and protein and consequently diminished E2 concentration in small white follicles; and (iii) increased the expression of CYP17A1 mRNA in large white follicles, without changing its protein expression. The results indicate that AgNPs affect chicken ovarian steroidogenesis. The effects of AgNPs depend on exposure time, the type of follicle and the degree of its development and are associated with the modulation of steroidogenic gene expression and E2 and T synthesis. Prehierachical follicles seem to be more susceptible to AgNPs than preovulatory ones. In conclusion, AgNPs by targeting the chicken ovary may indirectly influence the selection processes of prehierarchical follicles to the pre-ovulatory hierarchy and disturb the ovarian steroidogenesis. Furthermore, AgNPs may affect thyroid hormone metabolism in different ways by size which in turn may influence energy homeostasis of the target cells.
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Affiliation(s)
- Dorota Katarzyńska-Banasik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland.
| | - Małgorzata Grzesiak
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland
| | - Kinga Kowalik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Andrzej Sechman
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
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50
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Khan AU, Xu Z, Qian X, Hong A, Tang Q, Zeng T, Kah M, Li L. Transformations of Ag 2S nanoparticles in simulated human gastrointestinal tract: Impacts of the degree and origin of sulfidation. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123406. [PMID: 32653797 DOI: 10.1016/j.jhazmat.2020.123406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
Engineered silver sulfide nanoparticles (e-Ag2S-NPs) are used in industry and can be released into the environment. Besides e-Ag2S-NPs, transformed silver sulfide nanoparticles (t-Ag2S-NPs) from silver nanoparticles are more likely to be the form that is widely distributed in the environment. Both e-Ag2S-NPs and t-Ag2S-NPs may be ingested and get into human gastrointestinal tract (GIT) through trophic transfer, posing a potential threat to human health. Nevertheless, knowledge of chemical stability of t-Ag2S-NPs and e-Ag2S-NPs in the human GIT is very limited. Herein e-Ag2S-NPs and a series of t-Ag2S-NPs with different degrees of sulfidation were selected as models for exposure to the simulated human GIT including mouth, stomach and small intestine phases under fed and fasted conditions. Silver ions were detected in the simulated saliva, gastric and small intestine fluids when t-Ag2S-NPs or e-Ag2S-NPs were incubated in the simulated GIT, but the amount (e.g., < 20 μg) of silver ion in each phase accounted for < 0.2‰ (w/w) of the silver added (i.e., 100 mg). Silver species of the residual particulate from each phase of the simulated GIT with t-Ag2S-NPs or e-Ag2S-NPs were thus analyzed through a developed analytical method that could selectively, successively and efficiently dissolve and quantify AgCl, Ag(0), and Ag2S in particulates. Both e-Ag2S-NPs and fully sulfidized t-Ag2S-NPs were shown to be highly stable in the simulated human GIT. Conversely, partially sulfidized t-Ag2S-NPs primarily underwent transformations in the mouth phase relative to stomach and small intestine phases regardless of fed or fasted status, wherein AgCl and Ag2S were observed besides Ag(0). The amount of Ag2S in the mouth phase negatively (r = -0.99, p < 0.001) correlated with the sulfidation degree of initial t-Ag2S-NPs. This work improved our understanding of potential transformations of t-Ag2S-NPs in the simulated human GIT, providing valuable information for future researches on evaluating health risks of ingested Ag2S-NPs.
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Affiliation(s)
- Ashfeen Ubaid Khan
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhenlan Xu
- Institute of Quality and Standard of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaoting Qian
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Aimei Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Qing Tang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Tao Zeng
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Melanie Kah
- School of Environment, The University of Auckland, Auckland 1142, New Zealand
| | - Lingxiangyu Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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