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Samal D, Khandayataray P, Sravani M, Murthy MK. Silver nanoparticle ecotoxicity and phytoremediation: a critical review of current research and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8400-8428. [PMID: 38182947 DOI: 10.1007/s11356-023-31669-0] [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: 05/10/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
Silver nanoparticles (AgNPs) are widely used in various industries, including textiles, electronics, and biomedical fields, due to their unique optical, electronic, and antimicrobial properties. However, the extensive use of AgNPs has raised concerns about their potential ecotoxicity and adverse effects on the environment. AgNPs can enter the environment through different pathways, such as wastewater, surface runoff, and soil application and can interact with living organisms through adsorption, ingestion, and accumulation, causing toxicity and harm. The small size, high surface area-to-volume ratio, and ability to generate reactive oxygen species (ROS) make AgNPs particularly toxic. Various bioremediation strategies, such as phytoremediation, have been proposed to mitigate the toxic effects of AgNPs and minimize their impact on the environment. Further research is needed to improve these strategies and ensure their safety and efficacy in different environmental settings.
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Affiliation(s)
- Dibyaranjan Samal
- Department of Biotechnology, Sri Satya Sai University of Technical and Medical Sciences, Sehore, Bhopal, Madhya Pradesh, India
| | - Pratima Khandayataray
- Department of Biotechnology, Academy of Management and Information Technology, Utkal University, Bhubaneswar, 752057, Odisha, India
| | - Meesala Sravani
- Department of Computer Science and Engineering, GMR Institute of Technology, Rajam, 532127, India
| | - Meesala Krishna Murthy
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Punjab, 140401, India.
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2
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Awaad A, Olama ZA, El-Subruiti GM, Ali SM. The dual activity of CaONPs as a cancer treatment substance and at the same time resistance to harmful microbes. Sci Rep 2023; 13:22940. [PMID: 38135693 PMCID: PMC10746744 DOI: 10.1038/s41598-023-49637-6] [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: 07/09/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023] Open
Abstract
Nanotechnology holds significant promise for the development of novel and necessary products that enhance human health. Pharmacology and nanotechnology have contributed to developing advanced and highly effective drugs for cancer treatment and combating microbial infections. The microbiological effectiveness against the variety of examined microorganisms was assessed using the time killer curve, scanning electron microscopy (SEM), MIC techniques, and the agar well diffusion method. SEM was utilized to enhance the analysis of the mechanisms underlying the bio-interface interaction and intracellular localization of calcium oxide nanoparticles (CaONPs). The MTT test was used to examine the cytotoxicity of CaONP anticancer activity in various cancer cells, including colon, breast, and hepatic cells. The efficacy of CaONPs as an anticancer medication was elucidated by analyzing the gene expression of both treated and untreated cancer cells. MIC and MBC of CaONPs against Escherichia coli and Staphylococcus epidermidis were 150, 150, 150, and 200 µg/ml, respectively. The MIC and MFC of CaONPs against Candida albicans were 200 µg/ml and 250 µg/ml, respectively. The IC50 values of various CaONPs vary depending on the type of cancer cells. The gene expression analysis of breast cancer cells undergoing treatment revealed the identification of several cancer-controlling genes, namely BAX, BCL2, P53, TERT, KRAS1, KRAS2, and RB1. The study demonstrated the notable antibacterial efficacy of CaONPs, highlighting their potential as cancer therapies.
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Affiliation(s)
- Amr Awaad
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Zakia A Olama
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Gehan M El-Subruiti
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Safaa M Ali
- Nucleic Acid Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab City, 21934, Alexandria, Egypt.
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Santana JEG, Oliveira-Tintino CDDM, Gonçalves Alencar G, Siqueira GM, Sampaio Alves D, Moura TF, Tintino SR, de Menezes IRA, Rodrigues JPV, Gonçalves VBP, Nicolete R, Emran TB, Gonçalves Lima CM, Ahmad SF, Coutinho HDM, da Silva TG. Comparative Antibacterial and Efflux Pump Inhibitory Activity of Isolated Nerolidol, Farnesol, and α-Bisabolol Sesquiterpenes and Their Liposomal Nanoformulations. Molecules 2023; 28:7649. [PMID: 38005371 PMCID: PMC10675182 DOI: 10.3390/molecules28227649] [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: 08/23/2023] [Revised: 10/31/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
The efflux systems are considered important mechanisms of bacterial resistance due to their ability to extrude various antibiotics. Several naturally occurring compounds, such as sesquiterpenes, have demonstrated antibacterial activity and the ability to inhibit efflux pumps in resistant strains. Therefore, the objective of this research was to analyze the antibacterial and inhibitory activity of the efflux systems NorA, Tet(K), MsrA, and MepA by sesquiterpenes nerolidol, farnesol, and α-bisabolol, used either individually or in liposomal nanoformulation, against multi-resistant Staphylococcus aureus strains. The methodology consisted of in vitro testing of the ability of sesquiterpenes to reduce the Minimum Inhibitory Concentration (MIC) and enhance the action of antibiotics and ethidium bromide (EtBr) in broth microdilution assays. The following strains were used: S. aureus 1199B carrying the NorA efflux pump, resistant to norfloxacin; IS-58 strain carrying Tet(K), resistant to tetracyclines; RN4220 carrying MsrA, conferring resistance to erythromycin. For the EtBr fluorescence measurement test, K2068 carrying MepA was used. It was observed the individual sesquiterpenes exhibited better antibacterial activity as well as efflux pump inhibition. Farnesol showed the lowest MIC of 16.5 µg/mL against the S. aureus RN4220 strain. Isolated nerolidol stood out for reducing the MIC of EtBr to 5 µg/mL in the 1199B strain, yielding better results than the positive control CCCP, indicating strong evidence of NorA inhibition. The liposome formulations did not show promising results, except for liposome/farnesol, which reduced the MIC of EtBr against 1199B and RN4220. Further research is needed to evaluate the mechanisms of action involved in the inhibition of resistance mechanisms by the tested compounds.
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Affiliation(s)
| | - Cícera Datiane de Morais Oliveira-Tintino
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Gabriel Gonçalves Alencar
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Gustavo Miguel Siqueira
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Daniel Sampaio Alves
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Talysson Felismino Moura
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Saulo Relison Tintino
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Irwin Rose Alencar de Menezes
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | | | | | - Roberto Nicolete
- Oswaldo Cruz Foundation (Fiocruz Ceará), Eusebio 61773-270, Brazil; (J.P.V.R.); (V.B.P.G.); (R.N.)
| | - Talha Bin Emran
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University, Providence, RI 02912, USA;
- Legorreta Cancer Center, Brown University, Providence, RI 02912, USA
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | | | - Sheikh F. Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Henrique Douglas Melo Coutinho
- Departament of Biological Chemistry, Universidade Regional do Cariri (URCA), Crato 63105-010, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (D.S.A.); (T.F.M.); (S.R.T.); (I.R.A.d.M.)
| | - Teresinha Gonçalves da Silva
- Departamento de Antibióticos, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, Brazil; (J.E.G.S.); (T.G.d.S.)
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Oliveira-Tintino CDDM, Santana JEG, Alencar GG, Siqueira GM, Gonçalves SA, Tintino SR, de Menezes IRA, Rodrigues JPV, Gonçalves VBP, Nicolete R, Ribeiro-Filho J, da Silva TG, Coutinho HDM. Valencene, Nootkatone and Their Liposomal Nanoformulations as Potential Inhibitors of NorA, Tet(K), MsrA, and MepA Efflux Pumps in Staphylococcus aureus Strains. Pharmaceutics 2023; 15:2400. [PMID: 37896161 PMCID: PMC10609713 DOI: 10.3390/pharmaceutics15102400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/14/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
Valencene and nootkatone are aromatic sesquiterpenes with known biological activities, such as antimicrobial, antioxidant, anti-inflammatory, and antitumor. Given the evidence that encapsulation into nanosystems, such as liposomes, could improve the properties of several compounds, the present study aimed to evaluate the activity of these sesquiterpenes in their isolated state or in liposomal formulations against strains of Staphylococcus aureus carrying efflux pumps. The broth microdilution method evaluated the antibiotic-enhancing activity associated with antibiotics and ethidium bromide (EtBr). The minimum inhibitory concentration was assessed in strains of S. aureus 1199B, IS-58, and RN4220, which carry the efflux proteins NorA, Tet(K), and MsrA. In tests with strain 1199B, valencene reduced the MIC of norfloxacin and EtBr by 50%, while the liposomal formulation of this compound did not show a significant effect. Regarding the strain IS-58, valencene, and its nanoformulation reduced norfloxacin MIC by 60.3% and 50%, respectively. In the non-liposomal form, the sesquiterpene reduced the MIC of EtBr by 90%. Against the RN4220 strain, valencene reduced the MIC of the antibiotic and EtBr by 99% and 93.7%, respectively. Nootkatone and its nanoformulation showed significant activity against the 1199B strain, reducing the EtBr MIC by 21.9%. Against the IS-58 strain, isolated nootkatone reduced the EtBr MIC by 20%. The results indicate that valencene and nootkatone potentiate the action of antibiotics and efflux inhibitors in strains carrying NorA, Tet(K), and MsrA proteins, which suggests that these sesquiterpenes act as efflux pump inhibitors in S. aureus. Therefore, further studies are needed to assess the impact of incorporation into liposomes on the activity of these compounds in vivo.
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Affiliation(s)
- Cícera Datiane de Morais Oliveira-Tintino
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
| | | | - Gabriel Gonçalves Alencar
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
| | - Gustavo Miguel Siqueira
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
| | - Sheila Alves Gonçalves
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
| | - Saulo Relison Tintino
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
| | - Irwin Rose Alencar de Menezes
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
| | | | | | - Roberto Nicolete
- Oswaldo Cruz Foundation (Fiocruz Ceará), Eusébio 61773-270, CE, Brazil; (J.P.V.R.); (V.B.P.G.); (R.N.)
| | - Jaime Ribeiro-Filho
- Oswaldo Cruz Foundation (Fiocruz Ceará), Eusébio 61773-270, CE, Brazil; (J.P.V.R.); (V.B.P.G.); (R.N.)
| | - Teresinha Gonçalves da Silva
- Department of Antibiotics, Federal University of Pernambuco (UFPE), Recife 50670-901, PE, Brazil; (J.E.G.S.); (T.G.d.S.)
| | - Henrique Douglas Melo Coutinho
- Department of Biological Chemistry, Regional University of Cariri (URCA), Crato 63105-010, CE, Brazil; (C.D.d.M.O.-T.); (G.G.A.); (G.M.S.); (S.A.G.); (S.R.T.); (I.R.A.d.M.)
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Transcriptomic Profiling the Effects of Airway Exposure of Zinc Oxide and Silver Nanoparticles in Mouse Lungs. Int J Mol Sci 2023; 24:ijms24065183. [PMID: 36982257 PMCID: PMC10049322 DOI: 10.3390/ijms24065183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/10/2023] Open
Abstract
Consumers and manufacturers are exposed to nanosized zinc oxide (nZnO) and silver particles (nAg) via airways, but their biological effects are still not fully elucidated. To understand the immune effects, we exposed mice to 2, 10, or 50 μg of nZnO or nAg by oropharyngeal aspiration and analyzed the global gene expression profiles and immunopathological changes in the lungs after 1, 7, or 28 days. Our results show that the kinetics of responses varied in the lungs. Exposure to nZnO resulted in the highest accumulation of F4/80- and CD3-positive cells, and the largest number of differentially expressed genes (DEGs) were identified after day 1, while exposure to nAg caused peak responses at day 7. Additionally, nZnO mainly activated the innate immune responses leading to acute inflammation, whereas the nAg activated both innate and adaptive immune pathways, with long-lasting effects. This kinetic-profiling study provides an important data source to understand the cellular and molecular processes underlying nZnO- and nAg-induced transcriptomic changes, which lead to the characterization of the corresponding biological and toxicological effects of nZnO and nAg in the lungs. These findings could improve science-based hazard and risk assessment and the development of safe applications of engineered nanomaterials (ENMs), e.g., in biomedical applications.
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Activities against Lung Cancer of Biosynthesized Silver Nanoparticles: A Review. Biomedicines 2023; 11:biomedicines11020389. [PMID: 36830926 PMCID: PMC9953519 DOI: 10.3390/biomedicines11020389] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/22/2023] [Accepted: 01/26/2023] [Indexed: 02/03/2023] Open
Abstract
Nanomedicine is an interdisciplinary field where nanostructured objects are applied to treat or diagnose disease. Nanoparticles (NPs) are a special class of materials at nanometric scale that can be prepared from lipids, polymers, or noble metals through bottom-up approaches. Biological synthesis is a reliable, sustainable, and non-toxic bottom-up method that uses phytochemicals, microorganisms, and enzymes to induce the reduction of metal ions into NPs. Silver (Ag) NPs exhibit potent therapeutic properties that can be exploited to overcome the limitations of current treatment modalities for human health issues such as lung cancer (LC). Here, we review the preparation of AgNPs using biological synthesis and their application against LC using in vitro and in vivo models. An overview of the staging, diagnosis, genetic mutations, and treatment of LC, as well as its main subtypes, is presented. A summary of the reaction mechanisms of AgNPs using microbial cell cultures, plant extracts, phytochemicals, and amino acids is included. The use of capping agents in the biosynthesis of AgNPs with anticancer activity is also detailed. The history and biological activities of metal-based nanostructures synthesized with gold, copper, palladium, and platinum are considered. The possible anticancer mechanisms of AgNPs against LC models are covered. Our perspective about the future of AgNPs in LC treatment and nanomedicine is added.
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Alsubhi NS, Alharbi NS, Felimban AI. Optimized Green Synthesis and Anticancer Potential of Silver Nanoparticles Using Juniperus procera Extract Against Lung Cancer Cells. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Silver nanoparticles (AgNPs) have been considered promising candidates for medical practices in various fields. This study proposed an efficient, economical, uncomplicated, and reliable method to synthesize AgNPs utilizing leaf and fruit extracts of Juniperus procera (J. procera)
as capping, reducing, and stabilizing agents. The study includes optimizing the green synthesis conditions to produce stable AgNPs with high yields, acceptable particle size, and shape, hence, AgNPs may be used for different medical purposes through the improvement of their properties. Several
spectroscopic and other analyses performed characterization of the fabricated AgNPs, and the results show stable and spherical AgNPs between 14 and 18 nm in size. The study also evaluated the anticancer activities of the biosynthesized AgNPs using J. procera fruit and leaf extracts
against in vitro lung cancer A549 and H1975 cells. The results demonstrate the high toxicity of the biosynthesized AgNPs against in vitro lung cancer cells, supporting therapeutic and biomedical applications of AgNPs.
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Affiliation(s)
- Nehad S. Alsubhi
- Department of Biology, Collage of Science, University of Jeddah, Jeddah, 23445, Saudi Arabia
| | - Njud S. Alharbi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Afnan I. Felimban
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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Gudkov SV, Serov DA, Astashev ME, Semenova AA, Lisitsyn AB. Ag 2O Nanoparticles as a Candidate for Antimicrobial Compounds of the New Generation. Pharmaceuticals (Basel) 2022; 15:ph15080968. [PMID: 36015116 PMCID: PMC9415021 DOI: 10.3390/ph15080968] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 12/16/2022] Open
Abstract
Antibiotic resistance in microorganisms is an important problem of modern medicine which can be solved by searching for antimicrobial preparations of the new generation. Nanoparticles (NPs) of metals and their oxides are the most promising candidates for the role of such preparations. In the last few years, the number of studies devoted to the antimicrobial properties of silver oxide NPs have been actively growing. Although the total number of such studies is still not very high, it is quickly increasing. Advantages of silver oxide NPs are the relative easiness of production, low cost, high antibacterial and antifungal activities and low cytotoxicity to eukaryotic cells. This review intends to provide readers with the latest information about the antimicrobial properties of silver oxide NPs: sensitive organisms, mechanisms of action on microorganisms and further prospects for improving the antimicrobial properties.
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Affiliation(s)
- Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
- Correspondence:
| | - Dmitriy A. Serov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anastasia A. Semenova
- V. M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 109316 Moscow, Russia
| | - Andrey B. Lisitsyn
- V. M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 109316 Moscow, Russia
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Camassa LMA, Elje E, Mariussen E, Longhin EM, Dusinska M, Zienolddiny-Narui S, Rundén-Pran E. Advanced Respiratory Models for Hazard Assessment of Nanomaterials—Performance of Mono-, Co- and Tricultures. NANOMATERIALS 2022; 12:nano12152609. [PMID: 35957046 PMCID: PMC9370172 DOI: 10.3390/nano12152609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/23/2022] [Accepted: 07/26/2022] [Indexed: 12/02/2022]
Abstract
Advanced in vitro models are needed to support next-generation risk assessment (NGRA), moving from hazard assessment based mainly on animal studies to the application of new alternative methods (NAMs). Advanced models must be tested for hazard assessment of nanomaterials (NMs). The aim of this study was to perform an interlaboratory trial across two laboratories to test the robustness of and optimize a 3D lung model of human epithelial A549 cells cultivated at the air–liquid interface (ALI). Potential change in sensitivity in hazard identification when adding complexity, going from monocultures to co- and tricultures, was tested by including human endothelial cells EA.hy926 and differentiated monocytes dTHP-1. All models were exposed to NM-300K in an aerosol exposure system (VITROCELL® cloud-chamber). Cyto- and genotoxicity were measured by AlamarBlue and comet assay. Cellular uptake was investigated with transmission electron microscopy. The models were characterized by confocal microscopy and barrier function tested. We demonstrated that this advanced lung model is applicable for hazard assessment of NMs. The results point to a change in sensitivity of the model by adding complexity and to the importance of detailed protocols for robustness and reproducibility of advanced in vitro models.
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Affiliation(s)
| | - Elisabeth Elje
- NILU—Norwegian Institute for Air Research, 2027 Kjeller, Norway; (E.E.); (E.M.); (E.M.L.); (M.D.)
- Institute of Basic Medical Sciences, Department of Molecular Medicine, University of Oslo, 0372 Oslo, Norway
| | - Espen Mariussen
- NILU—Norwegian Institute for Air Research, 2027 Kjeller, Norway; (E.E.); (E.M.); (E.M.L.); (M.D.)
- Norwegian Institute of Public Health, FHI, 0456 Oslo, Norway
| | - Eleonora Marta Longhin
- NILU—Norwegian Institute for Air Research, 2027 Kjeller, Norway; (E.E.); (E.M.); (E.M.L.); (M.D.)
| | - Maria Dusinska
- NILU—Norwegian Institute for Air Research, 2027 Kjeller, Norway; (E.E.); (E.M.); (E.M.L.); (M.D.)
| | - Shan Zienolddiny-Narui
- National Institute of Occupational Health in Norway, 0033 Oslo, Norway;
- Correspondence: (S.Z.-N.); (E.R.-P.); Tel.: +47-2319-5284 (S.Z.-N.); +47-6389-8237 (E.R.-P.)
| | - Elise Rundén-Pran
- NILU—Norwegian Institute for Air Research, 2027 Kjeller, Norway; (E.E.); (E.M.); (E.M.L.); (M.D.)
- Correspondence: (S.Z.-N.); (E.R.-P.); Tel.: +47-2319-5284 (S.Z.-N.); +47-6389-8237 (E.R.-P.)
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