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Labulo AH, David OA, Hassan I, Oseghale CO, Terna AD, Olawuni I, Ndamadu DT, Ajewole TO. Mobility inhibition of arsenic in the soil: the role of green synthesized silica nanoparticles. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1683-1690. [PMID: 38712857 DOI: 10.1080/15226514.2024.2348044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
The studies showed the effectiveness of green-synthesized SiO2NPs in mitigating the toxicity of Arsenic. Density Functional Theory (DFT) is a computational method used to determine electronic structure, energy gap, and toxicity prediction. Experimentally, silicon nanoparticles of 0 (S0) and 100% v/v (S100) were applied to the surface of the soil. 150 mL of Arsenic trioxide was applied twice at a rate of 0 (As0) and 3.2 g/mL (As3.2) at an interval of three weeks. Green synthesized SiO2NPs possessed a higher chemical potential (µ) and electrophilicity index; consequently, charges could be transferred and easily polarized. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of the green synthesized SiO2NPs enable them to donate electrons and complex with arsenic, reducing their bioavailability and toxicity. Evidence from the studies further showed that SiO2NPs had buffered the soil acidity and electric conductivity, posing a high binding site and reactivity with exchangeable cations and micronutrients due to their smaller energy gap. Furthermore, the catalytic activities of the soil enzymes dehydrogenase (DHA) and peroxidase (POD) were greatly increased, which enhanced the electrostatic interaction between the SiO2NPs and As.
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Affiliation(s)
- Ayomide H Labulo
- Department of Chemistry, Federal University of Lafia, Lafia, Nigeria
| | - Oyinade A David
- Department of Plant Science and Biotechnology, Federal University Oye-Ekiti, Oye-Ekiti, Nigeria
- Plant Environmental Signalling and Development, Faculty of Biology, University of Freiburg, Freiburg, Germany
- CIBSS (Centre for Integrative Biological Signalling Studies), University of Freiburg, Freiburg, Germany
| | - Ibrahim Hassan
- Department of Chemistry, Federal University of Lafia, Lafia, Nigeria
| | | | - Augustine D Terna
- Department of Chemistry, Federal University of Technology Owerri, Owerri, Nigeria
| | - Idowu Olawuni
- Department of Biochemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Divine T Ndamadu
- Department of Plant Science and Biotechnology, Federal University Oye-Ekiti, Oye-Ekiti, Nigeria
| | - Tolulope O Ajewole
- Department of Plant Science and Biotechnology, Federal University Oye-Ekiti, Oye-Ekiti, Nigeria
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Zhaisanbayeva BA, Mun EA, Ulmanova L, Zhunissova Z, Umbayev B, Olzhayev F, Vorobjev IA, Hortelano G, Khutoryanskiy VV. In vitro and in vivo toxicity of thiolated and PEGylated organosilica nanoparticles. Int J Pharm 2024; 652:123852. [PMID: 38280501 DOI: 10.1016/j.ijpharm.2024.123852] [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: 07/19/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 01/29/2024]
Abstract
This study comprises the comprehensive toxicological assessment of thiolated organosilica nanoparticles (NPs) synthesised from 3-mercaptopropyltrimethoxysilane (MPTS). We investigated the influence of three different types of nanoparticles synthesised from 3-mercaptopropyltrimethoxysilane: the starting thiolated silica (Si-NP-SH) and their derivatives prepared by surface PEGylation with PEG 750 (Si-NP-PEG750) and 5000 Da (Si-NP-PEG5000) on biological subjects from in vitro to in vivo experiments to explore the possible applications of those nanoparticles in biomedical research. As a result of this study, we generated a comprehensive understanding of the toxicological properties of these nanoparticles, including their cytotoxicity in different cell lines, hemolytic properties, in vitro localisation, mucosal irritation properties and biodistribution in BALB/c mice. Our findings indicate that all three types of nanoparticles can be considered safe and have promising prospects for use in biomedical applications. Nanoparticles did not affect the viability of HPF, MCF7, HEK293 and A549 cell lines at low concentrations (up to 100 µg/mL); moreover, they did not cause organ damage to BALB/c mice at concentrations of 10 mg/kg. The outcomes of this study enhance our understanding of the impact of organosilica nanoparticles on health and the environment, which is vital for developing silica nanoparticle-based drug delivery systems and provides opportunities to expand the applications of organosilica nanoparticles.
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Affiliation(s)
- Balnur A Zhaisanbayeva
- School of Engineering and Digital Science, Nazarbayev University, 010000 Astana, Kazakhstan; School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Ellina A Mun
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Leila Ulmanova
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Zarina Zhunissova
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Bauyrzhan Umbayev
- National Laboratory Astana, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Farkhad Olzhayev
- National Laboratory Astana, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Ivan A Vorobjev
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan; National Laboratory Astana, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Gonzalo Hortelano
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
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Chen L, Guo W, Mao C, Shen J, Wan M. Liver fibrosis: pathological features, clinical treatment and application of therapeutic nanoagents. J Mater Chem B 2024; 12:1446-1466. [PMID: 38265305 DOI: 10.1039/d3tb02790b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Liver fibrosis is a reversible damage-repair response, the pathological features of which mainly include damage to hepatocytes, sinusoid capillarization, hepatic stellate cells activation, excessive accumulation of extracellular matrix and inflammatory response. Although some treatments (including drugs and stem cell therapy) for these pathological features have been shown to be effective, more clinical trials are needed to confirm their effectiveness. In recent years, nanomaterials-based therapies have emerged as an innovative and promising alternative to traditional drugs, being explored for the treatment of liver fibrosis diseases. Natural nanomaterials (including extracellular vesicles) and synthetic nanomaterials (including inorganic nanomaterials and organic nanomaterials) are developed to facilitate drug targeting delivery and combination therapy. In this review, the pathological features of liver fibrosis and the current anti-fibrosis drugs in clinical trials are briefly introduced, followed by a detailed introduction of the therapeutic nanoagents for the precise delivery of anti-fibrosis drugs. Finally, the future development trend in this field is discussed.
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Affiliation(s)
- Lin Chen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Wenyan Guo
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Jian Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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Tay JH, Lim YH, Zheng M, Zhao Y, Tan WS, Xu C, Ramamurty U, Song J. Development of hyaluronic acid-silica composites via in situ precipitation for improved penetration efficiency in fast-dissolving microneedle systems. Acta Biomater 2023; 172:175-187. [PMID: 37865280 DOI: 10.1016/j.actbio.2023.10.016] [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: 06/20/2023] [Revised: 09/13/2023] [Accepted: 10/11/2023] [Indexed: 10/23/2023]
Abstract
Fast-dissolving microneedles (DMNs) hold significant promise for transdermal drug delivery, offering improved patient compliance, biocompatibility, and functional adaptability for various therapeutic purposes. However, the mechanical strength of the biodegradable polymers used in DMNs often proves insufficient for effective penetration into human skin, especially under high humidity conditions. While many composite strategies have been developed to reinforce polymer-based DMNs, simple mixing of the reinforcements with polymers often results in ineffective penetration due to inhomogeneous dispersion of the reinforcements and the formation of undesired micropores. In response to this challenge, this study aimed to enhance the mechanical performance of hyaluronic acid (HA)-based microneedles (MNs), one of the most commonly used DMN systems. We introduced in situ precipitation of silica nanoparticles (Si) into the HA matrix in conjunction with conventional micromolding. The precipitated silica nanoparticles were uniformly distributed, forming an interconnected network within the HA matrix. Experimental results demonstrated that the mechanical properties of the HA-Si composite MNs with up to 20 vol% Si significantly improved, leading to higher penetration efficiency compared to pure HA MNs, while maintaining structural integrity without any critical defects. The composite MNs also showed reduced degradation rates and preserved their drug delivery capabilities and biocompatibility. Thus, the developed HA-Si composite MNs present a promising solution for efficient transdermal drug delivery and address the mechanical limitations inherent in DMN systems. STATEMENT OF SIGNIFICANCE: HA-Si composite dissolving microneedle (DMN) systems were successfully fabricated through in situ precipitation and conventional micromolding processes. The precipitated silica nanoparticles formed an interconnected network within the HA matrix, ranging in size from 25 to 230 nm. The optimal silica content for HA-Si composite MN systems should be up to 20 % by volume to maintain structural integrity and mechanical properties. HA-Si composite MNs with up to 20 % Si showed improved penetration efficiency and reduced degradation rates compared to pure HA MNs, thereby expanding the operational window. The HA-Si composite MNs retained good drug delivery capabilities and biocompatibility.
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Affiliation(s)
- Jie Hao Tay
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 639798, Singapore
| | - Yu Han Lim
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 639798, Singapore
| | - Mengjia Zheng
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Yakai Zhao
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 138634, Singapore
| | - Wen See Tan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 639798, Singapore; Singapore Centre for 3D Printing, Nanyang Technological University, Singapore, 639798, Singapore
| | - Chenjie Xu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Upadrasta Ramamurty
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 138634, Singapore; Singapore Centre for 3D Printing, Nanyang Technological University, Singapore, 639798, Singapore; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
| | - Juha Song
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 639798, Singapore; Singapore Centre for 3D Printing, Nanyang Technological University, Singapore, 639798, Singapore.
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Kirla H, Henry DJ, Jansen S, Thompson PL, Hamzah J. Use of Silica Nanoparticles for Drug Delivery in Cardiovascular Disease. Clin Ther 2023; 45:1060-1068. [PMID: 37783646 DOI: 10.1016/j.clinthera.2023.08.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 10/04/2023]
Abstract
PURPOSE Cardiovascular disease (CVD) is the leading cause of death worldwide. The current CVD therapeutic drugs require long-term treatment with high doses, which increases the risk of adverse effects while offering only marginal treatment efficacy. Silica nanoparticles (SNPs) have been proven to be an efficient drug delivery vehicle for numerous diseases, including CVD. This article reviews recent progress and advancement in targeted delivery for drugs and diagnostic and theranostic agents using silica nanoparticles to achieve therapeutic efficacy and improved detection of CVD in clinical and preclinical settings. METHODS A search of PubMed, Scopus, and Google Scholar databases from 1990 to 2023 was conducted. Current clinical trials on silica nanoparticles were identified through ClinicalTrials.gov. Search terms include silica nanoparticles, cardiovascular diseases, drug delivery, and therapy. FINDINGS Silica nanoparticles exhibit biocompatibility in biological systems, and their shape, size, surface area, and surface functionalization can be customized for the safe transport and protection of drugs in blood circulation. These properties also enable effective drug uptake in specific tissues and controlled drug release after systemic, localized, or oral delivery. A range of silica nanoparticles have been used as nanocarrier for drug delivery to treat conditions such as atherosclerosis, hypertension, ischemia, thrombosis, and myocardial infarction. IMPLICATIONS The use of silica nanoparticles for drug delivery and their ongoing development has emerged as a promising strategy to improve the effectiveness of drugs, imaging agents, and theranostics with the potential to revolutionize the treatment of CVD.
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Affiliation(s)
- Haritha Kirla
- Targeted Drug Delivery, Imaging & Therapy Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, Western Australia, Australia; Chemistry and Physics, College of Science, Health, Engineering and Education, Murdoch University, Western Australia, Australia.
| | - David J Henry
- Chemistry and Physics, College of Science, Health, Engineering and Education, Murdoch University, Western Australia, Australia
| | - Shirley Jansen
- Targeted Drug Delivery, Imaging & Therapy Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, Western Australia, Australia; Curtin Health Innovation Research Institute and Curtin Medical School, Curtin University, Perth, Western Australia, Australia; Heart & Vascular Research Institute, Harry Perkins Institute of Medical Research, Nedlands, Western Australia, Australia; Department of Vascular and Endovascular Surgery, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Peter L Thompson
- Heart & Vascular Research Institute, Harry Perkins Institute of Medical Research, Nedlands, Western Australia, Australia
| | - Juliana Hamzah
- Targeted Drug Delivery, Imaging & Therapy Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, Western Australia, Australia; Curtin Health Innovation Research Institute and Curtin Medical School, Curtin University, Perth, Western Australia, Australia; Heart & Vascular Research Institute, Harry Perkins Institute of Medical Research, Nedlands, Western Australia, Australia.
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Ismail A, Sial N, Rehman R, Abid S, Ismail MS. Survival, growth, behavior, hematology and serum biochemistry of mice under different concentrations of orally administered amorphous silica nanoparticle. Toxicol Rep 2023; 10:659-668. [PMID: 37274627 PMCID: PMC10238806 DOI: 10.1016/j.toxrep.2023.05.006] [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: 03/16/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 06/06/2023] Open
Abstract
Silica nanoparticles (SiNPs) are used extensively in consumer products and biomedical research basically due to ease of production and low cost. However, insufficient literature is reported regarding the toxicity and biocompatibility of SiNPs. The present study aimed to investigate the potential role of amorphous SiNPs on survival, growth, behavioral alterations, hematology and serum biochemistry of mice at four concentrations (control, 50, 100 and 150 mg/kg/day) of an oral supplementation for a period of 3 months. Signs of toxicity (lethargy, nausea, coma, tremors, vomiting and diarrhea, etc.) were noted at 9:00 am and 9:00 pm (twice a day) and the body weight of each of these mice was measured every week. The data were subjected to mean, standard deviation (S.D). Moreover, One-Way Analysis of Variance (ANOVA) and Dunnett's test were applied for analysis of statistical significance between groups by using SPSS software, version 20. All the mice survived with minor alterations in behavior and no significant weight changes were observed during the stipulated time period. Complete blood count (CBC) analysis indicated non-significant (P ≥ 0.05) systemic dysfunctions of organ systems. However, there was elevation in the level of AST and ALT in the analysis of serum biochemistry, while the values of all other examined parameters were not-significant (P ≥ 0.05). The study concluded that orally administered large silica nanoparticles up to the dose level of 150 mg/kg/day are nontoxic for the in vivo use in mice.
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Affiliation(s)
- Amna Ismail
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Nuzhat Sial
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Rakhshanda Rehman
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Sobia Abid
- Department of Zoology, The Islamia University of Bahawalpur, Pakistan
| | - Muhammad Shoaib Ismail
- Department of Agronomy, Muhammad Nawaz Shareef University of Agriculture Multan, Pakistan
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Shabbir S, Hu Y, He X, Huang K, Xu W. Toxicity and Impact of Silica Nanoparticles on the Configuration of Gut Microbiota in Immunodeficient Mice. Microorganisms 2023; 11:1183. [PMID: 37317157 DOI: 10.3390/microorganisms11051183] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 06/16/2023] Open
Abstract
Nanoparticles (NPs), having exceptional physicochemical and electrical characteristics with lower toxicity, have evolved as dynamic drug delivery carriers in living organisms. Potentially, the intragastric gavage of silica nanoparticles (SiNPs) affects gut microbiota profiles in immunodeficient mice. In this study, the impact of SiNPs of variable size and dosage was investigated in cyclophosphamide (Cy)-induced immunodeficient mice, specifically on their immune functions and gut microbiota, through physicochemical and metagenomic analysis. SiNPs of different sizes and doses were gavaged to Cy-induced immunodeficient mice for 12 days at an interval of 24 h to investigate their effects on immunological functions and the gut microbiome of mice. Our results showed that SiNPs had no significant toxicological effects on the cellular and hematological activities of immunodeficient mice. Furthermore, after the administration of different levels of SiNPs, no immune dysfunction was found in the immunosuppressed mice groups. However, gut-microbial studies and comparisons of characteristic bacterial diversity and compositions demonstrated that SiNPs significantly affect the abundance of different bacterial communities. LEfSe analysis revealed that SiNPs significantly increased the abundance of Lactobacillus, Sphingomonas, Sutterella, Akkermansia, and Prevotella, and potentially reduced Ruminococcus and Allobaculum. Thus, SiNPs significantly regulate and modify the configuration of the gut microbiota in immunodeficient mice. These dynamic variations in the intestinal bacterial community, abundance, and diversity provide new insight into the regulation and administration of silica-based NPs. This would be helpful for the further demonstration of the mechanism of action and prediction of the potential effects of SiNPs.
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Affiliation(s)
- Sana Shabbir
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China
| | - Yanzhou Hu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaoyun He
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Kunlun Huang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Wentao Xu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Esthar S, Dhivya R, Ramesh U, Rajesh J, Webster TJ, Annaraj J, Rajagopal G. Biocompatible, Biodegradable, and Improved Fluorescent Silicon Quantum Dots for Zebrafish Imaging. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
One of the greatest benefits of nanomedicine elucidated to date includes the non-invasive tracking and monitoring of living organisms by the selective uptake of harmless metallic nanoparticles. Several nanoscale probes have been employed for biomolecular imaging. Among them, fluorescent
nanoscale silicon materials have been recently established with a strong and safe potential for bioimaging and biosensing applications due to their bright fluorescence coupled with strong photostability, biocompatibility and negligible toxicity. Herein, we developed high-quality silicon nanomaterials
(4–5 nm; SiNPs) as biological fluorescent probes for bioimaging of living organisms through an easy aquatic synthesis method with a quantum yield of ∼8%. In this regard, we report that the presently synthesized SiNPs-based sensors/probes are attractive materials for solvent-based
fluorescence measurements and are biocompatible, non-toxic, highly photo-stable and pH stable. Most importantly, their fluorescence lifetime is much longer than that of native probes in living cells. Thus, these presently formulated SiNPs are improved fluorescent probes for in vivo
biological imaging in zebra fish embryos as well as numerous other living organisms and, thus, should be further studied.
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Sohrabi M, Babaei Z, Haghpanah V, Larijani B, Abbasi A, Mahdavi M. Recent advances in gene therapy-based cancer monotherapy and synergistic bimodal therapy using upconversion nanoparticles: Structural and biological aspects. Biomed Pharmacother 2022; 156:113872. [DOI: 10.1016/j.biopha.2022.113872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/06/2022] [Accepted: 10/13/2022] [Indexed: 11/02/2022] Open
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Effect of mesoporous silica nanoparticles loaded with α-tomatine on HepG2 cancer cells studied in vitro. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Li H, Zhang X, Shao F, Chen J, Li L, Hong R. Continuous preparation of a nontoxic magnetic fluid as a dual-mode contrast agent for MRI. BIOMATERIALS ADVANCES 2022; 139:213004. [PMID: 35882151 DOI: 10.1016/j.bioadv.2022.213004] [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: 03/26/2022] [Revised: 05/30/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
Ultrasmall nanoparticle contrast agents provide dual-mode MRI. However, the application of ultrasmall nanoparticle contrast agents is limited by low manufacturing outputs and cumbersome preparation processes. Herein, we report a novel continuous-flow coprecipitation method for the preparation of the Fe3O4 nanoparticles magnetic fluid (CFCPFe) coated with ultrasmall cysteine-terminated polymethacrylic acid (Cys-PMAA). The preparation process is more coherent, simpler, and less expensive. Compared with magnetic fluids prepared by the conventional method (Cys-PMAA@Fe3O4), CFCPFe has smaller particle sizes (3.27 ± 0.93 nm). Moreover, CFCPFe demonstrates excellent stability for >180 days with different pH values (pH = 2-12) and salt concentrations (up to 2 mol/L). In addition, HEK293T cytotoxicity tests, hemolysis tests, and H&E tissue sections show excellent in vitro and in vivo biocompatibility. In vitro magnetic resonance imaging (MRI) at 1.5 T shows that the r2 value (50.51 mM-1·s-1) of CFCPFe is slightly lower than that of Combidex (r2 = 65 mM-1·s-1) and that the r1 value (9.54 mM-1·s-1) is 2.7 times higher than that of Gd-DTPA (r1 = 3.5 mM-1·s-1). Finally, in vivo imaging shows that CFCPFe reaches the tumor region of the mouse liver cancer model, and a small tumor can be observed in dual-mode imaging. This work offers an effective method for the preparation of a low-cost, stable, and biocompatible ultrasmall contrast agent exhibiting a strong magnetic-imaging effect for dual-mode imaging.
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Affiliation(s)
- Hongcai Li
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Xing Zhang
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Fei Shao
- Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, China
| | - Jian Chen
- College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Linfu Li
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, China..
| | - Ruoyu Hong
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China..
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Huang Y, Li P, Zhao R, Zhao L, Liu J, Peng S, Fu X, Wang X, Luo R, Wang R, Zhang Z. Silica nanoparticles: Biomedical applications and toxicity. Biomed Pharmacother 2022; 151:113053. [PMID: 35594717 DOI: 10.1016/j.biopha.2022.113053] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 11/19/2022] Open
Abstract
Silica nanoparticles (SiNPs) are composed of silicon dioxide, the most abundant compound on Earth, and are used widely in many applications including the food industry, synthetic processes, medical diagnosis, and drug delivery due to their controllable particle size, large surface area, and great biocompatibility. Building on basic synthetic methods, convenient and economical strategies have been developed for the synthesis of SiNPs. Numerous studies have assessed the biomedical applications of SiNPs, including the surface and structural modification of SiNPs to target various cancers and diagnose diseases. However, studies on the in vitro and in vivo toxicity of SiNPs remain in the exploratory stage, and the toxicity mechanisms of SiNPs are poorly understood. This review covers recent studies on the biomedical applications of SiNPs, including their uses in drug delivery systems to diagnose and treat various diseases in the human body. SiNP toxicity is discussed in terms of the different systems of the human body and the individual organs in those systems. This comprehensive review includes both fundamental discoveries and exploratory progress in SiNP research that may lead to practical developments in the future.
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Affiliation(s)
- Yanmei Huang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Peng Li
- Department of Nephrology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264005, Shandong, PR China
| | - Ruikang Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Laien Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Jia Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Shengjun Peng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Xiaoxuan Fu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Xiaojie Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Rongrui Luo
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Rong Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Zhuhong Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China.
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13
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Ali MS, Uttinger MJ, Romeis S, Schmidt J, Peukert W. Effect of protein adsorption on the dissolution kinetics of silica nanoparticles. Colloids Surf B Biointerfaces 2022; 214:112466. [PMID: 35338965 DOI: 10.1016/j.colsurfb.2022.112466] [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: 10/29/2021] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 12/18/2022]
Abstract
Nanoparticulate systems in the presence of proteins are highly relevant for various biomedical applications such as photo-thermal therapy and targeted drug delivery. These involve a complex interplay between the charge state of nanoparticles and protein, the resulting protein conformation, adsorption equilibrium and adsorption kinetics, as well as particle dissolution. SiO2 is a common constituent of bioactive glasses used in biomedical applications. In this context, the dissolution behavior of silica particles in the presence of a model protein, bovine serum albumin (BSA), at physiologically relevant pH conditions was studied. Sedimentation analysis using an analytical ultracentrifuge showed that BSA in the supernatant solution is not affected by the presence of silica nanoparticles. However, zeta potential measurements revealed that the presence of the protein alters the particles' charge state. Adsorption and dissolution studies demonstrated that the presence of the protein significantly enhances the dissolution kinetics via interactions of positively charged amino acids in the protein with the negative silica surface and interaction of BSA with dissolved silicate species. Our study provides comprehensive insights into the complex interactions between proteins and oxide nanoparticles and establishes a reliable protocol paving the way for future investigations in more complex systems involving biological solutions as well as bioactive materials.
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Affiliation(s)
- Muhammad Saad Ali
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Particle Technology, Cauerstr. 4, 91058 Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg, Interdisciplinary Center for Functional Particle Systems, Haberstraße 9a, 91058 Erlangen, Germany.
| | - Maximilian J Uttinger
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Particle Technology, Cauerstr. 4, 91058 Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg, Interdisciplinary Center for Functional Particle Systems, Haberstraße 9a, 91058 Erlangen, Germany.
| | - Stefan Romeis
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Particle Technology, Cauerstr. 4, 91058 Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg, Interdisciplinary Center for Functional Particle Systems, Haberstraße 9a, 91058 Erlangen, Germany.
| | - Jochen Schmidt
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Particle Technology, Cauerstr. 4, 91058 Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg, Interdisciplinary Center for Functional Particle Systems, Haberstraße 9a, 91058 Erlangen, Germany.
| | - Wolfgang Peukert
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Particle Technology, Cauerstr. 4, 91058 Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg, Interdisciplinary Center for Functional Particle Systems, Haberstraße 9a, 91058 Erlangen, Germany.
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14
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Aouey B, Boukholda K, Gargouri B, Bhatia HS, Attaai A, Kebieche M, Bouchard M, Fetoui H. Silica Nanoparticles Induce Hepatotoxicity by Triggering Oxidative Damage, Apoptosis, and Bax-Bcl2 Signaling Pathway. Biol Trace Elem Res 2022; 200:1688-1698. [PMID: 34110565 DOI: 10.1007/s12011-021-02774-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 05/28/2021] [Indexed: 01/03/2023]
Abstract
The increase in the usage of silica nanoparticles (SiNPs) in the industrial and medical fields has raised concerns about their possible adverse effects on human health. The present study aimed to investigate the potential adverse effects of SiNPs at daily doses of 25 and 100 mg/kg body weight intraperitoneally (i.p.) for 28 consecutive days on markers of liver damage in adult male rats. Results revealed that SiNPs induced a marked increase in serum markers of liver damage, including lactate dehydrogenase (LDH), alanine aminotransferase (ALAT), and aspartate aminotransferase (ASAT). SiNPs also induced an elevation of reactive oxygen species (ROS) production in liver, along with an increase in oxidative stress markers (NO, MDA, PCO, and H2O2), and a decrease in antioxidant enzyme activities (CAT, SOD, and GPx). Quantitative real-time PCR showed that SiNPs also induced upregulation of pro-apoptotic gene expression (including Bax, p53, Caspase-9/3) and downregulation of anti-apoptotic factors Bcl-2. Moreover, histopathological analysis revealed that SiNPs induced hepatocyte alterations, which was accompanied by sinusoidal dilatation, Kupffer cell hyperplasia, and the presence of inflammatory cells in the liver. Taken together, these data showed that SiNPs trigger hepatic damage through ROS-activated caspase signaling pathway, which plays a fundamental role in SiNP-induced apoptosis in the liver.
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Affiliation(s)
- Bakhta Aouey
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000, Sfax, Tunisia
| | - Khadija Boukholda
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000, Sfax, Tunisia
| | - Brahim Gargouri
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000, Sfax, Tunisia
| | - Harsharan S Bhatia
- Institute for Tissue Engineering and Regenerative Medicine (iTERM), Helmholtz Zentrum München, 85764, Neuherberg, Germany
- Institute for Stroke and Dementia Research, Klinikum Der Universität München, Ludwig Maximilian University of Munich (LMU), 81377, Munich, Germany
| | - Abdelraheim Attaai
- Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Mohamed Kebieche
- Laboratory of Cellular and Molecular Biology, University of Mohamed Seddik Ben Yahia, Jijel, Algeria
- Faculty of Natural and Life Sciences, LBMBPC, University of Batna 2, 05078, Fesdis, Batna2, Algeria
| | - Michèle Bouchard
- Department of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, and Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424Main Station, P.O. Box 6128, Montreal, Quebec, H3C 3J7, Canada
| | - Hamadi Fetoui
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000, Sfax, Tunisia.
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15
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Wang K, Lu J, Li J, Gao Y, Mao Y, Zhao Q, Wang S. Current trends in smart mesoporous silica-based nanovehicles for photoactivated cancer therapy. J Control Release 2021; 339:445-472. [PMID: 34637819 DOI: 10.1016/j.jconrel.2021.10.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022]
Abstract
Photoactivated therapeutic strategies (photothermal therapy and photodynamic therapy), due to the adjusted therapeutic area, time and light dosage, have prevailed for the fight against tumors. Currently, the monotherapy with limited treatment effect and undesired side effects is gradually replaced by multimodal and multifunctional nanosystems. Mesoporous silica nanoparticles (MSNs) with unique physicochemical advantages, such as huge specific surface area, controllable pore size and morphology, functionalized modification, satisfying biocompatibility and biodegradability, are considered as promising candidates for multimodal photoactivated cancer therapy. Excitingly, the innovative nanoplatforms based on the mesoporous silica nanoparticles provide more and more effective treatment strategies and display excellent antitumor potential. Given the rapid development of antitumor strategies based on MSNs, this review summarizes the current progress in MSNs-based photoactivated cancer therapy, mainly consists of (1) photothermal therapy-related theranostics; (2) photodynamic therapy-related theranostics; (3) multimodal synergistic therapy, such as chemo-photothermal-photodynamic therapy, phototherapy-immunotherapy and phototherapy-radio therapy. Based on the limited penetration of irradiation light in photoactivated therapy, the challenges faced by deep-seated tumor therapy are fully discussed, and future clinical translation of MSNs-based photoactivated cancer therapy are highlighted.
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Affiliation(s)
- Kaili Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China
| | - Junya Lu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China
| | - Jiali Li
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China
| | - Yinlu Gao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China
| | - Yuling Mao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China
| | - Qinfu Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China.
| | - Siling Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China
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16
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Boukholda K, Gargouri B, Aouey B, Attaai A, Elkodous MA, Najimi M, Fiebich BL, Bouchard M, Fetoui H. Subacute silica nanoparticle exposure induced oxidative stress and inflammation in rat hippocampus combined with disruption of cholinergic system and behavioral functions. NANOIMPACT 2021; 24:100358. [PMID: 35559817 DOI: 10.1016/j.impact.2021.100358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 09/02/2021] [Accepted: 09/21/2021] [Indexed: 06/15/2023]
Abstract
Increasing environmental exposure to silica nanoparticles (SiNPs) and limited neurotoxicity studies pose a challenge for safety evaluation and management of these materials. This study aimed to explore the adverse effects and underlying mechanisms of subacute exposure to SiNPs by the intraperitoneal route on hippocampus function in rats. Data showed that SiNPs induced a significant increase in oxidative/nitrosative stress markers including reactive oxygen species (ROS), malondialdehyde (MDA), protein oxidation (PCO) and nitrite (NO) production accompanied by reduced antioxidant enzyme activity (catalase, superoxide dismutase, and glutathione peroxidase) and decreased glutathione (GSH). Phenotypically, SiNPs exhibited spatial learning and memory impairment in the Morris water maze (MWM) test, a decrease of the discrimination index in the novel object recognition test (NORT) and higher anxiety-like behavior. SiNPs affected the cholinergic system as reflected by reduced acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) activity. In addition, SiNPs significantly increased mRNA expression level of genes related to inflammation (TNF-α, IL-1β, IL-6, and COX-2) and decreased mRNA expression level of genes related to cholinergic system including choline acetyltransferase (ChAT), vesicular acetylcholine transporter (VAChT), AChE, muscarinic acetylcholine receptor M1 (m1AChR) and nicotinic acetylcholine receptors (nAChR). Histopathological results further showed an alteration in the hippocampus of treated animals associated with marked vacuolation in different hippocampus areas. These findings provide new insights into the molecular mechanism of SiNPs-induced hippocampal alterations leading to impairment of cognitive and behavioral functions, and implicating oxidative stress and inflammation in the hippocampus, as well as disruption of cholinergic system.
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Affiliation(s)
- Khadija Boukholda
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia
| | - Brahim Gargouri
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia; Neurochemistry and Neuroimmunology Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Hauptstrasse 5, 79104 Freiburg, Germany
| | - Bakhta Aouey
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia
| | - Abdelraheim Attaai
- Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Egypt
| | - Mohamed Abd Elkodous
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Mohamed Najimi
- Bioengineering Laboratory, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, 23000 Beni Mellal, Morocco
| | - Bernd L Fiebich
- Neurochemistry and Neuroimmunology Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Hauptstrasse 5, 79104 Freiburg, Germany
| | - Michèle Bouchard
- Department of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424, P.O. Box 6128, Main Station, Montreal, Quebec, Canada, H3C 3J7
| | - Hamadi Fetoui
- Laboratory of Toxicology-Microbiology and Environmental Health (17ES06), Faculty of Sciences of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia.
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17
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Nanosafety vs. nanotoxicology: adequate animal models for testing in vivo toxicity of nanoparticles. Toxicology 2021; 462:152952. [PMID: 34543703 DOI: 10.1016/j.tox.2021.152952] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 11/20/2022]
Abstract
Nanotoxicological studies using existing models of normal cells and animals often encounter a paradox: retention of nanoparticles in intracellular compartments for a long time is not accompanied by any significant toxicological effects. Can we expect that the revealed changes will be not harmful after translation to practice, outside of a sterile laboratory and ideally healthy organisms? Age-associated and pathological processes can affect target organs, metabolism, and detoxification in the mononuclear phagocyte system organs and change biodistribution routes, thus making the use of nanomaterial not safe. The potential solution to this issue can be testing the toxic properties of nanoparticles in animal models with chronic diseases. However, current studies of nanotoxicity in animal models with a brain, cardiovascular system, liver, digestive tract, reproductive system, and skin diseases are unsystematic. Even though these studies demonstrate the emergence of new toxic effects that are not present in healthy animals. In this regard, we set the goal of this review as the formulation of the requirements for an animal model capable of assessing the potential toxicity of nanoparticles based on the nanosafety approach.
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18
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A novel murine in vivo model for acute hereditary angioedema attacks. Sci Rep 2021; 11:15924. [PMID: 34354123 PMCID: PMC8342443 DOI: 10.1038/s41598-021-95125-0] [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: 07/24/2020] [Accepted: 06/15/2021] [Indexed: 12/03/2022] Open
Abstract
Hereditary Angioedema (HAE) is a rare genetic disease generally caused by deficiency or mutations in the C1-inhibitor gene, SERPING1, a member of the Serpin family. HAE results in acute attacks of edema, vasodilation, GI pain and hypotension. C1INH is a key inhibitor of enzymes controlling complement activation, fibrinolysis and the contact system. In HAE patients, contact system activation leads to uncontrolled production of bradykinin, the vasodilator responsible for the characteristic symptoms of HAE. In this study, we present the first physiological in vivo model to mimic acute HAE attacks. We evaluate hypotension, one of the many hallmark symptoms of acute HAE attacks using Serping1 deficient mice (serping1−/−) and implanted telemetry. Attacks were induced by IV injection of a silica nanoparticle (SiNP) suspension. Blood pressure was measured in real time, in conscious and untethered mice using implanted telemetry. SiNP injection induced a rapid, reversible decrease in blood pressure, in the presence of angiotensin converting enzyme (ACE) inhibition. We also demonstrate that an HAE therapeutic, ecallantide, can prevent HAE attacks in this model. The in vivo murine model described here can facilitate the understanding of acute HAE attacks, support drug development and ultimately contribute to improved patient care.
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19
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El-Demerdash FM, El-Magd MA, El-Sayed RA. Panax ginseng modulates oxidative stress, DNA damage, apoptosis, and inflammations induced by silicon dioxide nanoparticles in rats. ENVIRONMENTAL TOXICOLOGY 2021; 36:1362-1374. [PMID: 33749107 DOI: 10.1002/tox.23132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 03/07/2021] [Indexed: 06/12/2023]
Abstract
Silicon dioxide nanoparticles (SiO2 NPs) are extensively used in cosmetics, food, and drug delivery. The main mechanism of SiO2 NPs toxicities depends on oxidative stress. Ginseng (Panax ginseng Meyer) is used in various medicinal applications because of its antioxidant efficiency. Therefore, the present study was carried out to investigate the possible combated role of ginseng against SiO2 NPs toxicity in rat liver. Thirty-five male rats (160-180 g) were allocated into five groups of seven rats each, randomly. The first group was used as a control while groups 2, 3, 4, and 5 were treated orally with ginseng (Gin; 75 mg/kg, 1/10 LD50 ), SiO2 NPs, (200 mg/kg, 1/10 LD50 ), Gin + SiO2 NPs (protection group), and SiO2 NPs + Gin (therapeutic group) for 5 weeks, respectively. Treatment with SiO2 NPs increased lipid peroxidation, liver function enzymes, and decreased antioxidant enzymes (SOD, CAT, GPx, GST) activity and non-enzymatic antioxidant (GSH) level. SiO2 NPs administration motivated liver apoptosis as revealed by the upregulation of the apoptotic genes, Bcl2-associated x protein (Bax), and Beclin 1 and downregulation of the anti-apoptotic gene, B-cell lymphoma 2 (Bcl2) as well as increase in DNA damage. Also, SiO2 NPs administration caused inflammation as indicated by upregulation of the inflammation-related genes (interleukin 1 beta [IL1β], tumor necrosis factor-alpha [TNFα], nuclear factor kappa B [NFκB], cyclooxygenase 2 [Cox2], transforming growth factor-beta 1 [TGFβ1]) as well as cell cycle arrest in the G0/G1 phase of liver cells. Moreover, histopathological examination proved the biochemical and molecular perturbations occurred due to SiO2 NPs toxicity. On the other hand, ginseng caused a significant modulation on the deleterious effects induced by SiO2 NPs in rat liver. In conclusion, ginseng has a potent preventive effect than the therapeutic one and might be used in the treatment of SiO2 NPs hepatotoxicity.
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Affiliation(s)
- Fatma M El-Demerdash
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Mohammed A El-Magd
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El Sheikh, Egypt
| | - Raghda A El-Sayed
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
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20
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Guo C, Liu Y, Li Y. Adverse effects of amorphous silica nanoparticles: Focus on human cardiovascular health. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124626. [PMID: 33296760 DOI: 10.1016/j.jhazmat.2020.124626] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/04/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Amorphous silica nanoparticle (SiNPs) has tremendous potential for a host of applications, while its mass production, broad application and environmental release inevitably increase the risk of human exposure. SiNPs could enter into the human body through different routes such as inhalation, ingestion, skin contact and even injection for medical applications. The cardiovascular system is gradually recognized as one of the primary sites for engineered NPs exerting adverse effects. Accumulating epidemiological or experimental evidence support the association between SiNPs exposure and adverse cardiovascular effects. However, this topic is still in its infancy, and the literature shows high inter-study variability and even contradictory results. New challenges still present in the safety evaluation of SiNPs, and its toxicological mechanisms are poorly understood. Here, scientific papers related to cardiovascular studies of SiNPs in vivo and in vitro were selected, and the updated particle-caused cardiovascular toxicity and potential mechanisms were summarized. Moreover, the understanding of how factors primarily including exposure dose, route of administration, particle size and surface properties, influence the interaction between SiNPs and cardiovascular system was discussed. In particular, the adverse outcome pathway (AOP) framework by which SiNPs cause deleterious effects in the cardiovascular system was described, aiming to provide useful information necessary for the regulatory decision and to guide a safer application of nanotechnology.
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Affiliation(s)
- Caixia Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Yufan Liu
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yanbo Li
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
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21
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Nanoparticle-induced inflammation and fibrosis in ex vivo murine precision-cut liver slices and effects of nanoparticle exposure conditions. Arch Toxicol 2021; 95:1267-1285. [PMID: 33555372 PMCID: PMC8032640 DOI: 10.1007/s00204-021-02992-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 01/21/2021] [Indexed: 12/20/2022]
Abstract
Chronic exposure and accumulation of persistent nanomaterials by cells have led to safety concerns on potential long-term effects induced by nanoparticles, including chronic inflammation and fibrosis. With this in mind, we used murine precision-cut liver tissue slices to test potential induction of inflammation and onset of fibrosis upon 72 h exposure to different nanomaterials (0–200 µg/ml). Tissue slices were chosen as an advanced ex vivo 3D model to better resemble the complexity of the in vivo tissue environment, with a focus on the liver where most nanomaterials accumulate. Effects on the onset of fibrosis and inflammation were investigated, with particular care in optimizing nanoparticle exposure conditions to tissue. Thus, we compared the effects induced on slices exposed to nanoparticles in the presence of excess free proteins (in situ), or after corona isolation. Slices exposed to daily-refreshed nanoparticle dispersions were used to test additional effects due to ageing of the dispersions. Exposure to amino-modified polystyrene nanoparticles in serum-free conditions led to strong inflammation, with stronger effects with daily-refreshed dispersions. Instead, no inflammation was observed when slices were exposed to the same nanoparticles in medium supplemented with serum to allow corona formation. Similarly, no clear signs of inflammation nor of onset of fibrosis were detected after exposure to silica, titania or carboxylated polystyrene in all conditions tested. Overall, these results show that liver slices can be used to test nanoparticle-induced inflammation in real tissue, and that the exposure conditions and ageing of the dispersions can strongly affect tissue responses to nanoparticles.
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22
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Sauvat L, Abdul Hamid AI, Blavignac C, Josse J, Lesens O, Gueirard P. Biofilm-coated microbeads and the mouse ear skin: An innovative model for analysing anti-biofilm immune response in vivo. PLoS One 2020; 15:e0243500. [PMID: 33275636 PMCID: PMC7717515 DOI: 10.1371/journal.pone.0243500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022] Open
Abstract
Owing to its ability to form biofilms, Staphylococcus aureus is responsible for an increasing number of infections on implantable medical devices. The aim of this study was to develop a mouse model using microbeads coated with S. aureus biofilm to simulate such infections and to analyse the dynamics of anti-biofilm inflammatory responses by intravital imaging. Scanning electron microscopy and flow cytometry were used in vitro to study the ability of an mCherry fluorescent strain of S. aureus to coat silica microbeads. Biofilm-coated microbeads were then inoculated intradermally into the ear tissue of LysM-EGFP transgenic mice (EGFP fluorescent immune cells). General and specific real-time inflammatory responses were studied in ear tissue by confocal microscopy at early (4-6h) and late time points (after 24h) after injection. The displacement properties of immune cells were analysed. The responses were compared with those obtained in control mice injected with only microbeads. In vitro, our protocol was capable of generating reproducible inocula of biofilm-coated microbeads verified by labelling matrix components, observing biofilm ultrastructure and confirmed in vivo and in situ with a matrix specific fluorescent probe. In vivo, a major inflammatory response was observed in the mouse ear pinna at both time points. Real-time observations of cell recruitment at injection sites showed that immune cells had difficulty in accessing biofilm bacteria and highlighted areas of direct interaction. The average speed of cells was lower in infected mice compared to control mice and in tissue areas where direct contact between immune cells and bacteria was observed, the average cell velocity and linearity were decreased in comparison to cells in areas where no bacteria were visible. This model provides an innovative way to analyse specific immune responses against biofilm infections on medical devices. It paves the way for live evaluation of the effectiveness of immunomodulatory therapies combined with antibiotics.
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Affiliation(s)
- Léo Sauvat
- Laboratoire Microorganismes: Génome et Environnement, Université Clermont Auvergne, UMR CNRS 6023, Clermont-Ferrand, France.,Infectious and Tropical Diseases Department, CRIOA, CRMVT, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Aizat Iman Abdul Hamid
- Laboratoire Microorganismes: Génome et Environnement, Université Clermont Auvergne, UMR CNRS 6023, Clermont-Ferrand, France
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Jérôme Josse
- CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, CNRS, UMR5308, École Normale Supérieure de Lyon, Université Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Olivier Lesens
- Laboratoire Microorganismes: Génome et Environnement, Université Clermont Auvergne, UMR CNRS 6023, Clermont-Ferrand, France.,Infectious and Tropical Diseases Department, CRIOA, CRMVT, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Pascale Gueirard
- Laboratoire Microorganismes: Génome et Environnement, Université Clermont Auvergne, UMR CNRS 6023, Clermont-Ferrand, France
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23
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Yukina GY, Polovnikov IV, Sukhorukova EG, Zhuravskii SG, Galagudza MM. Morphological Analysis of the Respiratory Tract of Rats after Parenteral Administration of Silicon Dioxide Nanoparticles. Bull Exp Biol Med 2020; 170:93-97. [PMID: 33231801 DOI: 10.1007/s10517-020-05011-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Indexed: 11/28/2022]
Abstract
Morphological analysis of the respiratory tract of Wistar rats was performed after a single parenteral administration of 12-nm silicon dioxide nanoparticles (1 ml, 2 mg/ml, intravenously) was performed. On day 21 and in 2, 4, and 6 months after the administration of nanoparticles, the development of macrophage infiltration in the interstitium of the respiratory tract was demonstrated by histological and immunohistochemical methods. The pool of alveolar macrophages increased in 4 months after administration (p=0.004) and returned to the control values in 6 months. The number of mast cells did not significantly change at all stages of the experiment. Connective tissue remodeling in the interstitium of the respiratory tract was not observed throughout the observation period.
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Affiliation(s)
- G Yu Yukina
- I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
| | - I V Polovnikov
- I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
| | - E G Sukhorukova
- I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia.
| | - S G Zhuravskii
- I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia.,V. A. Almazov National Medical Research Centre, Ministry of Health of the Russian Federation, St. Petersburg, Russia
| | - M M Galagudza
- I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia.,V. A. Almazov National Medical Research Centre, Ministry of Health of the Russian Federation, St. Petersburg, Russia
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24
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Chakraborty P, Isser HS, Arava SK, Madan K, Bhatia M, Jahangir A. Ventricular Tachycardia: A Rare Case of Myocardial Silicosis. JACC Case Rep 2020; 2:2256-2259. [PMID: 34317152 PMCID: PMC8299841 DOI: 10.1016/j.jaccas.2020.09.024] [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: 06/05/2020] [Revised: 09/15/2020] [Accepted: 09/22/2020] [Indexed: 11/27/2022]
Abstract
Chronic exposure to silica is a recognized health hazard. Manifestations of pulmonary and extrapulmonary silicosis are well described. Secondary pulmonary arterial hypertension and pericardial involvement are described, but myocardial involvement has not been reported. In this case of newly diagnosed pulmonary silicosis, ventricular tachycardia results are shown from pathological involvement of ventricular myocardium. (Level of Difficulty: Beginner.).
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Affiliation(s)
- Praloy Chakraborty
- Department of Cardiology, Toronto General Hospital, Toronto, Ontario, Canada
| | | | - Sudheer Kumar Arava
- Department of Pathology, All India Institute of Medical Sciences, Delhi, India
| | - Karan Madan
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences, Delhi, India
| | - Mona Bhatia
- Department of Radiology and Imaging, Fortis Escorts Heart Institute, New Delhi, India
| | - Arshad Jahangir
- Aurora Center for Advanced Atrial Fibrillation Therapies, Aurora Cardiovascular and Thoracic Services, Aurora St. Luke's Medical Center, Advocate Aurora Health, Milwaukee, Wisconsin
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25
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Wang Y, Liu Y, Li J, Xu X, Li X. Zinc ferrate nanoparticles for applications in medicine: synthesis, physicochemical properties, regulation of macrophage functions, and in vivo safety evaluation. Nanotoxicology 2020; 14:1381-1398. [PMID: 33075238 DOI: 10.1080/17435390.2020.1831094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Zinc ferrate nanoparticles (ZnFe2O4 NPs) have attracted enormous interest as potential nanomaterials. The purpose of this study was to examine the in vitro macrophages toxicity, in vivo safety, and immunogenicity. Three kinds of ZnFe2O4 NPs with different shapes (round, litchi, and raspberry), nano-sizes, and pores were successfully prepared. In vitro experiments showed that ZnFe2O4 NPs caused no cytotoxicity against the RAW 264.7 cells up to administered dose of 200 μg/mL, enhanced proinflammatory cytokine TNF-α, and costimulatory marker CD86 expression in the RAW 264.7 cells. Interestingly, ZnFe2O4 NPs reduced ROS expression, which was inconsistent with common metal oxide NPs such as iron oxide (Fe3O4) NPs and zinc oxide (ZnO) NPs. ZnFe2O4 NPs improved the RAW 264.7 cells phagocytosed more neutral red. There was no obvious difference in body weight, the number of immune cells, organ index, and expression of inflammatory factors in serum of rats administrated intravenously and subcutaneously on day 21 after treatment by ZnFe2O4 NPs in comparison with the blank control. These results demonstrated that ZnFe2O4 NPs slightly enhanced the function of the RAW 264.7 cells in vitro but caused no obvious toxicity to macrophages as well as rat blood cells, and low immunogenicity in rats, suggesting that ZnFe2O4 NPs as a biocompatible nanomaterials achieved potential for bioapplication in the future.
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Affiliation(s)
- Yu Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Yajie Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Jiajia Li
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Xiaoqing Xu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Xinru Li
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
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26
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Mohammadpour R, Cheney DL, Grunberger JW, Yazdimamaghani M, Jedrzkiewicz J, Isaacson KJ, Dobrovolskaia MA, Ghandehari H. One-year chronic toxicity evaluation of single dose intravenously administered silica nanoparticles in mice and their Ex vivo human hemocompatibility. J Control Release 2020; 324:471-481. [PMID: 32464151 PMCID: PMC7429347 DOI: 10.1016/j.jconrel.2020.05.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/14/2020] [Accepted: 05/16/2020] [Indexed: 02/06/2023]
Abstract
Chronic toxicity evaluations of nanotechnology-based drugs are essential to support initiation of clinical trials. Ideally such evaluations should address the dosing strategy in human applications and provide sufficient information for long-term usage. Herein, we investigated one-year toxicity of non-surface modified silica nanoparticles (SNPs) with variations in size and porosity (Stöber SNPs 46 ± 4.9 and 432.0 ± 18.7 nm and mesoporous SNPs 466.0 ± 86.0 nm) upon single dose intravenous administration to female and male BALB/c mice (10 animal/sex/group) along with their human blood compatibility. Our evidence of clinical observation and blood parameters showed no significant changes in body weight, cell blood count, nor plasma biomarker indices. No significant changes were noted in post necropsy examination of internal organs and organ-to-body weight ratio. However, microscopic examination revealed significant amount of liver inflammation and aggregates of histocytes with neutrophils within the spleen suggesting an ongoing or resolving injury. The fast accumulation of these plain SNPs in the liver and spleen upon IV administration and the duration needed for their clearance caused these injuries. There were also subtle changes which were attributed to prior infarctions or resolved intravascular thrombosis and included calcifications in pulmonary vessels, focal cardiac fibrosis with calcifications, and focal renal injury. Most of the pathologic lesions were observed when large, non-porous SNPs were administered. Statistically significant chronic toxicity was not observed for the small non-porous particles and for the mesoporous particles. This one-year post-exposure evaluation indicate that female and male BALB/c mice need up to one year to recover from acute tissue toxic effects of silica nanoparticles upon single dose intravenous administration at their 10-day maximum tolerated dose. Further, ex vivo testing with human blood and plasma revealed no hemolysis or complement activation following incubation with these silica nanoparticles. These results can inform the potential utility of silica nanoparticles in biomedical applications such as controlled drug delivery where intravenous injection of the particles is intended.
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Affiliation(s)
- Raziye Mohammadpour
- Utah Center for Nanomedicine, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States
| | - Darwin L Cheney
- Utah Center for Nanomedicine, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States
| | - Jason W Grunberger
- Utah Center for Nanomedicine, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States; Department of Pharmaceutics and Pharmaceutical Chemistry, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States
| | - Mostafa Yazdimamaghani
- Utah Center for Nanomedicine, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States; Department of Pharmaceutics and Pharmaceutical Chemistry, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States
| | - Jolanta Jedrzkiewicz
- Department of Pathology, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States
| | - Kyle J Isaacson
- Utah Center for Nanomedicine, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States; Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, United States
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, United States
| | - Hamidreza Ghandehari
- Utah Center for Nanomedicine, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States; Department of Pharmaceutics and Pharmaceutical Chemistry, Nano Institute of Utah, and University of Utah, Salt Lake City, Utah, United States; Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, United States.
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27
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Barros CHN, Devlin H, Hiebner DW, Vitale S, Quinn L, Casey E. Enhancing curcumin's solubility and antibiofilm activity via silica surface modification. NANOSCALE ADVANCES 2020; 2:1694-1708. [PMID: 36132306 PMCID: PMC9418611 DOI: 10.1039/d0na00041h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/19/2020] [Indexed: 06/15/2023]
Abstract
Bacterial biofilms are microbial communities in which bacterial cells in sessile state are mechanically and chemically protected against foreign agents, thus enhancing antibiotic resistance. The delivery of active compounds to the inside of biofilms is often hindered due to the existence of the biofilm extracellular polymeric substances (EPS) and to the poor solubility of drugs and antibiotics. A possible strategy to overcome the EPS barrier is the incorporation of antimicrobial agents into a nanocarrier, able to penetrate the matrix and deliver the active substance to the cells. Here, we report the synthesis of antimicrobial curcumin-conjugated silica nanoparticles (curc-NPs) as a possibility for dealing with these issues. Curcumin is a known antimicrobial agent and to overcome its low solubility in water it was grafted onto the surface of silica nanoparticles, the latter functioning as nanocarrier for curcumin into the biofilm. Curc-NPs were able to impede the formation of model P. putida biofilms up to 50% and disrupt mature biofilms up to 54% at 2.5 mg mL-1. Cell viability of sessile cells in both cases was also considerably affected, which is not observed for curcumin delivered as a free compound at the same concentration. Furthermore, proteomics of extracted EPS matrix of biofilms grown in the presence of free curcumin and curc-NPs revealed differences in the expression of key proteins related to cell detoxification and energy production. Therefore, curc-NPs are presented here as an alternative for curcumin delivery that can be exploited not only to other bacterial strains but also to further biological applications.
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Affiliation(s)
- Caio H N Barros
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Henry Devlin
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Dishon W Hiebner
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Stefania Vitale
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Laura Quinn
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Eoin Casey
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
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28
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Dose-dependent cell necrosis induced by silica nanoparticles. Toxicol In Vitro 2020; 63:104723. [DOI: 10.1016/j.tiv.2019.104723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/30/2019] [Accepted: 11/14/2019] [Indexed: 11/20/2022]
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29
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Mathieu P, Chalet M, Clain MM, Teulon L, Benoist E, Leygue N, Picard C, Boutry S, Laurent S, Stanicki D, Hénoumont C, Novio F, Lorenzo J, Montpeyó D, Ciuculescu-Pradines D, Amiens C. Surface engineering of silica nanoparticles with a gadolinium–PCTA complex for efficient T1-weighted MRI contrast agents. NEW J CHEM 2020. [DOI: 10.1039/d0nj04430j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covalent grafting of diaqua Gd(iii)-complexes onto dense silica nanoparticles affords non-toxic contrast agents suitable for high field MRI pre-clinical studies.
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30
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Cornu R, Béduneau A, Martin H. Influence of nanoparticles on liver tissue and hepatic functions: A review. Toxicology 2019; 430:152344. [PMID: 31843632 DOI: 10.1016/j.tox.2019.152344] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/14/2019] [Accepted: 12/12/2019] [Indexed: 12/16/2022]
Abstract
Due to the increasing interest in nanotechnology in very large application fields, including biotechnology, electronics and food industries, humans are increasingly exposed to nanoparticles (NPs). Consequently, the question about the safety of these nanomaterials and their impact on human health is a legitimate concern. The liver is the primary organ of detoxification and is one of the tissues that is most exposed to NPs. When they reach the bloodstream, NPs are mainly internalized by liver cells. This review focuses on recent in vitro and in vivo studies addressing the effects of organic and inorganic NPs on the liver. Specifically, the impact of the NPs on hepatic enzyme activities, the inflammatory response and genotoxicity processes will be described. Depending on the physicochemical parameters of the NPs and the conditions of exposure, NPs could lead to global liver injury.
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Affiliation(s)
- Raphaël Cornu
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, F-25000 Besançon, France.
| | - Arnaud Béduneau
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, F-25000 Besançon, France.
| | - Hélène Martin
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, F-25000 Besançon, France.
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31
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Muraca F, Alahmari A, Giannone VA, Adumeau L, Yan Y, McCafferty MM, Dawson KA. A Three-Dimensional Cell Culture Platform for Long Time-Scale Observations of Bio-Nano Interactions. ACS NANO 2019; 13:13524-13536. [PMID: 31682422 DOI: 10.1021/acsnano.9b07453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We know surprisingly little about the long-term outcomes for nanomaterials interacting with organisms. To date, most of what we know is derived from in vivo studies that limit the range of materials studied and the scope of advanced molecular biology tools applied. Long-term in vitro nanoparticle studies are hampered by a lack of suitable models, as standard cell culture techniques present several drawbacks, while technical limitations render current three-dimensional (3D) cellular spheroid models less suited. Now, by controlling the kinetic processes of cell assembly and division in a non-Newtonian culture medium, we engineer reproducible cell clusters of controlled size and phenotype, leading to a convenient and flexible long-term 3D culture that allows nanoparticle studies over many weeks in an in vitro setting. We present applications of this model for the assessment of intracellular polymeric and silica nanoparticle persistence and found that hydrocarbon-based polymeric nanoparticles undergo no apparent degradation over long time periods with no obvious biological impact, while amorphous silica nanoparticles degrade at different rates over several weeks, depending on their synthesis method.
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Affiliation(s)
- Francesco Muraca
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
| | - Amirah Alahmari
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
| | - Valeria A Giannone
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
- School of Biomolecular and Biomedical Science , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
| | - Laurent Adumeau
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
| | - Yan Yan
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
- School of Biomolecular and Biomedical Science , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
| | - Mura M McCafferty
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
| | - Kenneth A Dawson
- Centre for BioNano Interactions , University College Dublin , Belfield, Dublin 4, D04 V1W8 , Ireland
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32
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Soe ZC, Ou W, Gautam M, Poudel K, Kim BK, Pham LM, Phung CD, Jeong JH, Jin SG, Choi HG, Ku SK, Yong CS, Kim JO. Development of Folate-Functionalized PEGylated Zein Nanoparticles for Ligand-Directed Delivery of Paclitaxel. Pharmaceutics 2019; 11:E562. [PMID: 31671569 PMCID: PMC6920870 DOI: 10.3390/pharmaceutics11110562] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022] Open
Abstract
In this study, we investigated the active targeted delivery of a hydrophobic drug, paclitaxel (PTX), via receptor-mediated endocytosis by folate receptors expressed on cancer cells using a protein-based nanoparticle system. PTX was loaded on zein nanoparticles and conjugated with folate (PTX/Zein-FA) to estimate its chemotherapeutic efficacy in folate receptor-expressing KB cancer cells. PTX/Zein-FA nanoparticles were successfully developed, with a nanoparticle size of ~180 nm and narrow polydispersity index (~0.22). Accelerated release of PTX in an acidic environment was observed for PTX/Zein-FA. An in vitro cellular study of PTX/Zein-FAs in KB cells suggested that PTX/Zein-FA improved the cytotoxic activity of PTX on folate receptors overexpressed in cancer cells by inducing proapoptotic proteins and inhibiting anti-apoptotic proteins. In addition, PTX/Zein-FA exhibited anti-migratory properties and could alter the cell cycle profile of KB cells. A549 cells, which are folate receptor-negative cancer cells, showed no significant enhancement in the in vitro cellular activities of PTX/Zein-FA. We describe the antitumor efficacy of PTX/Zein-FA in KB tumor-bearing mice with minimum toxicity in healthy organs, and the results were confirmed in comparison with free drug and non-targeted nanoparticles.
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Affiliation(s)
- Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
- Department of Pharmaceutics, University of Pharmacy (Mandalay), Mandalay-Lashio Rd, Mandalay 05011, Myanmar.
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Bo Kyun Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Le Minh Pham
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Cao Dai Phung
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, 119 Dandae-ro, Dongnamgu, Cheonan 31116, Korea.
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Korea.
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Haany University, Gyeongsan 712-715, Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
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Zhang Z, Jayakumar MKG, Zheng X, Shikha S, Zhang Y, Bansal A, Poon DJJ, Chu PL, Yeo ELL, Chua MLK, Chee SK, Zhang Y. Upconversion superballs for programmable photoactivation of therapeutics. Nat Commun 2019; 10:4586. [PMID: 31594932 PMCID: PMC6783568 DOI: 10.1038/s41467-019-12506-w] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 09/09/2019] [Indexed: 12/31/2022] Open
Abstract
Upconversion nanoparticles (UCNPs) are the preferred choice for deep-tissue photoactivation, owing to their unique capability of converting deep tissue-penetrating near-infrared light to UV/visible light for photoactivation. Programmed photoactivation of multiple molecules is critical for controlling many biological processes. However, syntheses of such UCNPs require epitaxial growth of multiple shells on the core nanocrystals and are highly complex/time-consuming. To overcome this bottleneck, we have modularly assembled two distinct UCNPs which can individually be excited by 980/808 nm light, but not both. These orthogonal photoactivable UCNPs superballs are used for programmed photoactivation of multiple therapeutic processes for enhanced efficacy. These include sequential activation of endosomal escape through photochemical-internalization for enhanced cellular uptake, followed by photocontrolled gene knockdown of superoxide dismutase-1 to increase sensitivity to reactive oxygen species and finally, photodynamic therapy under these favorable conditions. Such programmed activation translated to significantly higher therapeutic efficacy in vitro and in vivo in comparison to conventional, non-programmed activation.
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Affiliation(s)
- Zhen Zhang
- Faculty of Engineering, Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | | | - Xiang Zheng
- Faculty of Engineering, Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, 117456, Singapore
| | - Swati Shikha
- Faculty of Engineering, Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Yi Zhang
- Faculty of Engineering, Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Akshaya Bansal
- Faculty of Engineering, Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Dennis J J Poon
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Pek Lim Chu
- Oncology Academic Program, Duke-NUS Medical School, Singapore, 169857, Singapore
| | - Eugenia L L Yeo
- Division of Medical Sciences, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Melvin L K Chua
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
- Oncology Academic Program, Duke-NUS Medical School, Singapore, 169857, Singapore
- Division of Medical Sciences, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Soo Khee Chee
- Oncology Academic Program, Duke-NUS Medical School, Singapore, 169857, Singapore
- Division of Medical Sciences, National Cancer Centre Singapore, Singapore, 169610, Singapore
- Division of Surgical Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Yong Zhang
- Faculty of Engineering, Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore.
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, 117456, Singapore.
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34
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Bretin L, Pinon A, Bouramtane S, Ouk C, Richard L, Perrin ML, Chaunavel A, Carrion C, Bregier F, Sol V, Chaleix V, Leger DY, Liagre B. Photodynamic Therapy Activity of New Porphyrin-Xylan-Coated Silica Nanoparticles in Human Colorectal Cancer. Cancers (Basel) 2019; 11:cancers11101474. [PMID: 31575052 PMCID: PMC6826978 DOI: 10.3390/cancers11101474] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 09/28/2019] [Indexed: 12/13/2022] Open
Abstract
Photodynamic therapy (PDT) using porphyrins has been approved for treatment of several solid tumors due to the generation of cytotoxic reactive oxygen species (ROS). However, low physiological solubility and lack of selectivity towards tumor sites are the main limitations of their clinical use. Nanoparticles are able to spontaneously accumulate in solid tumors through an enhanced permeability and retention (EPR) effect due to leaky vasculature, poor lymphatic drainage, and increased vessel permeability. Herein, we proved the added value of nanoparticle vectorization on anticancer efficacy and tumor-targeting by 5-(4-hydroxyphenyl)-10,15,20-triphenylporphyrin (TPPOH). Using 80 nm silica nanoparticles (SNPs) coated with xylan-TPPOH conjugate (TPPOH-X), we first showed very significant phototoxic effects of TPPOH-X SNPs mediated by post-PDT ROS generation and stronger cell uptake in human colorectal cancer cell lines compared to free TPPOH. Additionally, we demonstrated apoptotic cell death induced by TPPOH-X SNPs-PDT and the interest of autophagy inhibition to increase anticancer efficacy. Finally, we highlighted in vivo, without toxicity, elevated anticancer efficacy of TPPOH-X SNPs through improvement of tumor-targeting compared to a free TPPOH protocol. Our work demonstrated for the first time the strong anticancer efficacy of TPPOH in vitro and in vivo and the merit of SNPs vectorization.
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Affiliation(s)
- Ludovic Bretin
- Laboratoire PEIRENE EA 7500, Faculté de Pharmacie, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
| | - Aline Pinon
- Laboratoire PEIRENE EA 7500, Faculté de Pharmacie, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
| | - Soukaina Bouramtane
- Laboratoire PEIRENE EA 7500, Faculté des Sciences & Techniques, Université de Limoges 123, Avenue Albert Thomas, 87060 Limoges Cedex, France.
| | - Catherine Ouk
- BISCEm Pôle Cytométrie en flux/Microscopie, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
| | - Laurence Richard
- Service d'Anatomie Pathologique, Centre Hospitalier Universitaire de Limoges 2, Avenue Martin Luther King, 87042 Limoges Cedex, France.
| | - Marie-Laure Perrin
- Laboratoire Bio EM XLIM UMR CNRS 7252, Faculté de Médecine, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
| | - Alain Chaunavel
- Service d'Anatomie Pathologique, Centre Hospitalier Universitaire de Limoges 2, Avenue Martin Luther King, 87042 Limoges Cedex, France.
| | - Claire Carrion
- BISCEm Pôle Cytométrie en flux/Microscopie, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
| | - Frédérique Bregier
- Laboratoire PEIRENE EA 7500, Faculté des Sciences & Techniques, Université de Limoges 123, Avenue Albert Thomas, 87060 Limoges Cedex, France.
| | - Vincent Sol
- Laboratoire PEIRENE EA 7500, Faculté des Sciences & Techniques, Université de Limoges 123, Avenue Albert Thomas, 87060 Limoges Cedex, France.
| | - Vincent Chaleix
- Laboratoire PEIRENE EA 7500, Faculté des Sciences & Techniques, Université de Limoges 123, Avenue Albert Thomas, 87060 Limoges Cedex, France.
| | - David Yannick Leger
- Laboratoire PEIRENE EA 7500, Faculté de Pharmacie, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
| | - Bertrand Liagre
- Laboratoire PEIRENE EA 7500, Faculté de Pharmacie, Université de Limoges 2, Rue du Docteur Raymond Marcland, 87025 Limoges Cedex, France.
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Guzman-Ruiz MA, de La Mora MB, Torres X, Meza C, Garcia E, Chavarria A. Oral Silica Nanoparticles Lack of Neurotoxic Effects in a Parkinson's Disease Model: A Possible Nanocarrier? IEEE Trans Nanobioscience 2019; 18:535-541. [PMID: 31398128 DOI: 10.1109/tnb.2019.2934074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Silica nanoparticles (SiO2-NP) are an option as drug carriers due to their biodegradability, biocompatibility, and capacity to bind themselves to other compounds. However, until now, the effect of these particles on the brain when neurodegeneration occurs is unknown. Hence, this work focused on the in vivo evaluation of the neurotoxic effects of SiO2-NP when oxidative and inflammation are present during the development of Parkinson's disease. To determine whether SiO2-NP may act as a non-neurotoxic carrier we evaluated if the intragastric administration (ig) of SiO2-NP of 150 nm (25, 50 and 100 mg/kg administered for five consecutive days) increased neuronal damage induced with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) administration. SiO2-NP administration did not further decrease cell viability assessed by MTT reduction, nor increased lipid peroxidation measured by TBARS or TNF α levels in the striatum and the substantia nigra in the MPTP model. Furthermore, we observed no additional reduction in striatal dopamine levels. The present results suggest that SiO2-NP of 150 nm are suitable nanocarrier for Parkinson's disease drugs without generating any additional damage.
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Yang Y, Du X, Wang Q, Liu J, Zhang E, Sai L, Peng C, Lavin MF, Yeo AJ, Yang X, Shao H, Du Z. Mechanism of cell death induced by silica nanoparticles in hepatocyte cells is by apoptosis. Int J Mol Med 2019; 44:903-912. [PMID: 31524225 PMCID: PMC6657974 DOI: 10.3892/ijmm.2019.4265] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 07/01/2019] [Indexed: 02/07/2023] Open
Abstract
Silicon is one of the most widely used chemical materials, and the increasing use of silica nanoparticles (SNs) highlights the requirement for safety and biological toxicity studies. The damaging and adverse effects of SNs on human hepatocytes remain largely unknown, as do the mechanisms involved. In the present study, the mechanisms underlying SN‑induced toxicity in the human hepatocyte cell line HL‑7702 were investigated. An MTT assay revealed that following exposure to SNs in the concentration range of 25‑200 µg/ml, the viability of HL‑7702 cells decreased, and the viability decreased further with increasing exposure time. SNs induced a delay in the S and G2/M phases of the cell cycle, and also induced DNA damage in these cells. Western blot and flow cytometry analyses revealed that cell death was mediated by mitochondrial damage and the upregulated expression of a number of pro‑apoptotic proteins. In conclusion, exposure to SNs led to mitochondrial and DNA damage, resulting in apoptosis‑mediated HL‑7702 cell death. The study provided evidence for the cellular toxicity of SNs, and added to the growing body of evidence regarding the potential damaging effects of nanoparticles, indicating that caution should be exercised in their widespread usage.
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Affiliation(s)
- Ye Yang
- School of Medicine and Life Sciences, University of Jinan‑Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Xinjing Du
- School of Medicine and Life Sciences, University of Jinan‑Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Qiang Wang
- Department of Preventive Medicine and Public Health Laboratory Science, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Jianwei Liu
- Radiation Protection Safety Institute, Shandong Center for Disease Control and Prevention, Jinan, Shandong 250014, P.R. China
| | - Enguo Zhang
- School of Medicine and Life Sciences, University of Jinan‑Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Linlin Sai
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Cheng Peng
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Martin F Lavin
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Abrey Jie Yeo
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Xu Yang
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Hua Shao
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Zhongjun Du
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
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Li X, Xia S, Zhou W, Ji R, Zhan W. Targeted Fe-doped silica nanoparticles as a novel ultrasound-magnetic resonance dual-mode imaging contrast agent for HER2-positive breast cancer. Int J Nanomedicine 2019; 14:2397-2413. [PMID: 31040664 PMCID: PMC6455005 DOI: 10.2147/ijn.s189252] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Background Multimodal contrast agents with low toxicity and targeted modification have opened up new possibilities for specific imaging of breast cancer and shown broad application prospects in biomedicine and great potential for clinical transformation. In this work, a potential multifunctional imaging agent was developed by doping Fe into hollow silica nanoparticles (HS-Fe NPs), followed by modification with specific anti-HER2 antibodies, enabling the NPs to have dual-mode ultrasound (US)-magnetic resonance (MR)-specific imaging capacity with low toxicity. Methods Anti-HER2 antibodies were conjugated to silane-polyethylene glycol (PEG)-COOH-modified HS-Fe (HS-Fe-PEG) NPs to produce HER2-targeted HS-Fe-PEG (HS-Fe-PEG-HER2) NPs. The toxicity of HS-Fe-PEG-HER2 NPs on targeted cells in vitro and blood and organ tissue of mice in vivo was investigated. Distribution in vivo was also studied. Confocal laser-scanning microscopy and flow cytometry were used to evaluate the targeting ability of HS-Fe-PEG-HER2 NPs in vitro. US and MR instruments were used for imaging both in vivo and in vitro. Results The obtained HS-Fe-PEG-HER2 NPs (average diameter 234.42±48.76 nm) exhibited good physical properties and biosafety. In solution, they showed obvious enhancement of the US signal and negative contrast in T 2-weighted MR imaging. The binding rate of HS-Fe-PEG-HER2 NPs to targeted cells (SKBR3) was 78.97%±4.41% in vitro. US and MR imaging in vivo confirmed that the HS-Fe-PEG-HER2 NPs were delivered passively into the tumor region of SKBR3 and bound specifically to tumor cells. Target enhancement was better than untargeted and targeted competition groups. Conclusion HS-Fe-PEG-HER2 NPs have potential as a low-cytotoxicity and dual-mode US-MR-specific imaging agent.
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Affiliation(s)
- Xiaoyu Li
- Ultrasound Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, ;
| | - Shujun Xia
- Ultrasound Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, ;
| | - Wei Zhou
- Ultrasound Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, ;
| | - Ri Ji
- Ultrasound Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, ;
| | - Weiwei Zhan
- Ultrasound Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, ;
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De Matteis V, Cascione M, Toma CC, Pellegrino P, Rizzello L, Rinaldi R. Tailoring Cell Morphomechanical Perturbations Through Metal Oxide Nanoparticles. NANOSCALE RESEARCH LETTERS 2019; 14:109. [PMID: 30923929 PMCID: PMC6439097 DOI: 10.1186/s11671-019-2941-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/14/2019] [Indexed: 05/17/2023]
Abstract
The nowadays growing use of nanoparticles (NPs) in commercial products does not match a comprehensive understanding of their potential harmfulness. More in vitro investigations are required to address how the physicochemical properties of NPs guide their engulfment within cells and their intracellular trafficking, fate, and toxicity. These nano-bio interactions have not been extensively addressed yet, especially from a mechanical viewpoint. Cell mechanic is a critical indicator of cell health because it regulates processes like cell migration, tissue integrity, and differentiation via cytoskeleton rearrangements. Here, we investigated in vitro the elasticity perturbation of Caco-2 and A549 cell lines, in terms of Young's modulus modification induced by SiO2NPS and TiO2NPS. TiO2NPs demonstrated stronger effects on cell elasticity compared to SiO2NPs, as they induced significant morphological and morphometric changes in actin network. TiO2NPS increased the elasticity in Caco-2 cells, while opposite effects have been observed on A549 cells. These results demonstrate the existence of a correlation between the alteration of cell elasticity and NPs toxicity that depends, in turn, on the NPs physicochemical properties and the specific cell tested.
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Affiliation(s)
- Valeria De Matteis
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, Via Arnesano, 73100 Lecce, Italy
| | - Mariafrancesca Cascione
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, Via Arnesano, 73100 Lecce, Italy
| | - Chiara Cristina Toma
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, Via Arnesano, 73100 Lecce, Italy
| | - Paolo Pellegrino
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, Via Arnesano, 73100 Lecce, Italy
| | - Loris Rizzello
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ UK
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain
| | - Rosaria Rinaldi
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, Via Arnesano, 73100 Lecce, Italy
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Silica nanoparticles induce conformational changes of tau protein and oxidative stress and apoptosis in neuroblastoma cell line. Int J Biol Macromol 2018; 124:1312-1320. [PMID: 30248427 DOI: 10.1016/j.ijbiomac.2018.09.118] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 12/31/2022]
Abstract
The adverse effects of SiO2 NPs on the biological systems like nervous system have not been well explored. This study aimed to evaluate the toxicity of SiO2 NPs on the nervous system in vitro. Therefore, human tau protein and neuroblastoma cell line (SH-SY5Y) were used as targets. In this study we examined the side effects of SiO2 NPs on tau protein structure using several techniques including CD, ANS fluorescence, UV-vis (360 nm), Congo red absorbance, TEM, and molecular dynamic. Also, the cytotoxicity effects of SiO2 NPs against SH-SY5Y cell line were evaluated using MTT, ROS and apoptotic assays. Spectroscopic and molecular dynamic investigations indicated that natively unfolded structure of tau in the presence of SiO2 NPs experienced a partially folded and amorphous aggregated structure. Cellular assay demonstrated that SiO2 NPs exerted cytotoxic effect on SH-SY5Y cells through ROS accumulation and induction of apoptosis. Overall, these findings proved that SiO2 NPs could induce adverse effects on tau structure and SH-SY5Y cell integrity. Moreover, further studies are required to elucidate the molecular mechanism of SiO2 NPs-induced side effects in vivo.
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Yin PT, Pongkulapa T, Cho HY, Han J, Pasquale NJ, Rabie H, Kim JH, Choi JW, Lee KB. Overcoming Chemoresistance in Cancer via Combined MicroRNA Therapeutics with Anticancer Drugs Using Multifunctional Magnetic Core-Shell Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26954-26963. [PMID: 30028120 DOI: 10.1021/acsami.8b09086] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, we report the use of a multifunctional magnetic core-shell nanoparticle (MCNP), composed of a highly magnetic zinc-doped iron oxide (ZnFe2O4) core nanoparticle and a biocompatible mesoporous silica (mSi) shell, for the simultaneous delivery of let-7a microRNA (miRNA) and anticancer drugs (e.g., doxorubicin) to overcome chemoresistance in breast cancer. Owing to the ability of let-7a to repress DNA repair mechanisms (e.g., BRCA1 and BRCA2) and downregulate drug efflux pumps (e.g., ABCG2), delivery of let-7a could sensitize chemoresistant breast cancer cells (MDA-MB-231) to subsequent doxorubicin chemotherapy both in vitro and in vivo. Moreover, the multifunctionality of our MCNPs allows for the monitoring of in vivo delivery via magnetic resonance imaging. In short, we have developed a multifunctional MCNP-based therapeutic approach to provide an attractive method with which to enhance our ability not only to deliver combined miRNA therapeutics with small-molecule drugs in both selective and effective manner but also to sensitize cancer cells for the enhanced treatment via the combination of miRNA replacement therapy using a single nanoplatform.
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Affiliation(s)
| | | | - Hyeon-Yeol Cho
- Department of Chemical and Biomolecular Engineering , Sogang University , Seoul 04107 , Republic of Korea
| | - Jiyou Han
- Division of Biotechnology, Laboratory of Stem Cells and Tissue Regeneration, College of Life Sciences and Biotechnology , Korea University , Seoul 02841 , Republic of Korea
- Department of Biological Sciences, Laboratory of Stem Cell Research and Biotechnology , Hyupsung University , Hwaseong-si 18330 , Republic of Korea
| | | | | | - Jong-Hoon Kim
- Division of Biotechnology, Laboratory of Stem Cells and Tissue Regeneration, College of Life Sciences and Biotechnology , Korea University , Seoul 02841 , Republic of Korea
| | - Jeong-Woo Choi
- Department of Chemical and Biomolecular Engineering , Sogang University , Seoul 04107 , Republic of Korea
| | - Ki-Bum Lee
- College of Pharmacy , Kyung Hee University , 26 Kyungheedae-ro , Dongdaemun-gu, Seoul 02447 , Republic of Korea
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Pankratova S, Klingelhofer J, Dmytriyeva O, Owczarek S, Renziehausen A, Syed N, Porter AE, Dexter DT, Kiryushko D. The S100A4 Protein Signals through the ErbB4 Receptor to Promote Neuronal Survival. Theranostics 2018; 8:3977-3990. [PMID: 30083275 PMCID: PMC6071530 DOI: 10.7150/thno.22274] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 04/10/2018] [Indexed: 12/21/2022] Open
Abstract
Understanding the mechanisms of neurodegeneration is crucial for development of therapies to treat neurological disorders. S100 proteins are extensively expressed in the injured brain but S100's role and signalling in neural cells remain elusive. We recently demonstrated that the S100A4 protein protects neurons in brain injury and designed S100A4-derived peptides mimicking its beneficial effects. Here we show that neuroprotection by S100A4 involves the growth factor family receptor ErbB4 and its ligand Neuregulin 1 (NRG), key regulators of neuronal plasticity and implicated in multiple brain pathologies. The neuroprotective effect of S100A4 depends on ErbB4 expression and the ErbB4 signalling partners ErbB2/Akt, and is reduced by functional blockade of NRG/ErbB4 in cell models of neurodegeneration. We also detect binding of S100A4 with ErbB1 (EGFR) and ErbB3. S100A4-derived peptides interact with, and signal through ErbB, are neuroprotective in primary and immortalized dopaminergic neurons, and do not affect cell proliferation/motility - features which make them promising as potential neuroprotectants. Our data suggest that the S100-ErbB axis may be an important mechanism regulating neuronal survival and plasticity.
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Almansour M, Alarifi S, Jarrar B. In vivo investigation on the chronic hepatotoxicity induced by intraperitoneal administration of 10-nm silicon dioxide nanoparticles. Int J Nanomedicine 2018; 13:2685-2696. [PMID: 29765215 PMCID: PMC5944457 DOI: 10.2147/ijn.s162847] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background Silicon dioxide (silica) nanoparticles (SDNPs) are widely used in nanotechnology and medicine, but these nanomaterials may carry a high risk for human health while little is known about their toxicity. Methods We investigated the alterations in morphometry, biochemistry, hematology, histology of liver tissue and gene expression of drug-metabolizing enzymes induced by 10-nm SDNPs. Healthy male Wistar albino rats were exposed to 20, 35 and 50 repeated injections of SDNPs (2 mg/kg body weight). Whole blood, serum and plasma samples were used for hematological and biochemical analyses, whereas liver biopsies were processed for histopathological and gene expression alterations. Results In comparison with control rats, exposure to SDNPs lowered the body weight gain and liver index and increased the counts of white blood cells and platelets, but lowered the platelet larger cell ratio and plateletcrit. Levels of alkaline phosphatase, lactate dehydrogenase, low-density lipids, procalcitonin, aspartate aminotransferase and alanine aminotransferase, as well as potassium, phosphorus and iron concentrations, were increased. Histopathology revealed that SDNPs could induce hydropic degeneration, sinusoidal dilatation, hyperplasia of Kupffer cells, karyopyknosis and infiltration of inflammatory cells in the liver. SDNPs reduced the expression of 12 genes of drug-metabolizing enzymes significantly (p<0.05). Conclusion These results suggest that SDNPs could cause alterations in morphometry, biochemistry, hematology, liver tissues and the expression of drug-metabolizing enzyme genes.
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Affiliation(s)
- Mansour Almansour
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Bashir Jarrar
- Department of Biological Sciences, College of Science, Jerash University, Jerash, Jordan
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Kusaczuk M, Krętowski R, Naumowicz M, Stypułkowska A, Cechowska-Pasko M. Silica nanoparticle-induced oxidative stress and mitochondrial damage is followed by activation of intrinsic apoptosis pathway in glioblastoma cells. Int J Nanomedicine 2018; 13:2279-2294. [PMID: 29695906 PMCID: PMC5905826 DOI: 10.2147/ijn.s158393] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Introduction Recently, the focus of oncological research has been on the optimization of therapeutic strategies targeted at malignant diseases. Nanomedicine utilizing silicon dioxide nanoparticles (SiNPs) is one such strategy and is rapidly developing as a promising tool for cancer diagnosis, imaging, and treatment. Nevertheless, little is known about the mechanisms of action of SiNPs in brain tumors. Materials and methods Here, we explored the effects of 5-15 nm SiNPs in the human glioblastoma cell line LN229. In this respect, MTT assays, microscopic observations, flow cytometry analyses, and luminescent assays were performed. Moreover, RT-qPCR and Western blot analyses were done to determine gene and protein expressions. Results We demonstrated that SiNPs triggered evident cytotoxicity, with microscopic observations of the nuclei, annexin V-fluorescein isothiocyanate/propidium iodide staining, and elevated caspase 3/7 activity, suggesting that SiNPs predominantly induced apoptotic death in LN229 cells. We further showed the occurrence of oxidative stress induced by enhanced reactive oxygen-species generation. This effect was followed by deregulated expression of genes encoding the antioxidant enzymes SOD1, SOD2, and CAT, and impaired mitochondria function. SiNP- induced mitochondrial dysfunction was characterized by membrane-potential collapse, ATP depletion, elevated expression of BAX, PUMA, and NOXA with simultaneous downregulation of BCL2/BCL2L1, and activation of caspase 9. Moreover, RT-qPCR and Western blot analyses demonstrated increased levels of the endoplasmic reticulum stress markers GRP78, GRP94, and DDIT3, as well as strongly increased expressions of the IL1B and COX2 genes, suggesting activation of endoplasmic reticulum stress and a proinflammatory response. Conclusions Altogether, our data indicate that in LN229 cells, SiNPs evoke cell death via activation of the intrinsic apoptosis pathway and suggest that other aspects of cellular function may also be affected. As such, SiNPs represent a potentially promising agent for facilitating further progress in brain cancer therapy. However, further exploration of SiNP long-term toxicity and molecular effects is necessary prior to their widespread application.
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Affiliation(s)
- Magdalena Kusaczuk
- Department of Pharmaceutical Biochemistry, Medical University of Białystok
| | - Rafał Krętowski
- Department of Pharmaceutical Biochemistry, Medical University of Białystok
| | - Monika Naumowicz
- Institute of Chemistry, University of Białystok, Białystok, Poland
| | - Anna Stypułkowska
- Department of Pharmaceutical Biochemistry, Medical University of Białystok
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Minigalieva IA, Katsnelson BA, Privalova LI, Sutunkova MP, Gurvich VB, Shur VY, Shishkina EV, Valamina IE, Makeyev OH, Panov VG, Varaksin AN, Bushueva TV, Sakhautdinova RR, Klinova SV, Solovyeva SN, Meshtcheryakova EY. Combined Subchronic Toxicity of Aluminum (III), Titanium (IV) and Silicon (IV) Oxide Nanoparticles and Its Alleviation with a Complex of Bioprotectors. Int J Mol Sci 2018. [PMID: 29534019 PMCID: PMC5877698 DOI: 10.3390/ijms19030837] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Stable suspensions of metal/metalloid oxide nanoparticles (MeO-NPs) obtained by laser ablation of 99.99% pure elemental aluminum, titanium or silicon under a layer of deionized water were used separately, or in three binary combinations, or in a ternary combination to induce subchronic intoxications in rats. To this end, the MeO-NPs were repeatedly injected intraperitoneally (i.p.) 18 times during 6 weeks before measuring a large number of functional, biochemical, morphological and cytological indices for the organism’s status. In many respects, the Al2O3-NP was found to be the most toxic species alone and the most dangerous component of the combinations studied. Mathematical modeling with the help of the Response Surface Methodology showed that, as well as in the case of any other binary toxic combinations previously investigated by us, the organism’s response to a simultaneous exposure to any two of the MeO-NP species under study was characterized by a complex interaction between all possible types of combined toxicity (additivity, subadditivity or superadditivity of unidirectional action and different variants of opposite effects) depending on which outcome this type was estimated for and on effect and dose levels. With any third MeO-NP species acting in the background, the type of combined toxicity displayed by the other two remained virtually the same or changed significantly, becoming either more or less unfavorable. Various harmful effects produced by the (Al2O3-NP + TiO2-NP + SiO2-NP)-combination, including its genotoxicity, were substantially attenuated by giving the rats per os during the entire exposure period a complex of innocuous bioactive substances expected to increase the organism’s antitoxic resistance.
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Affiliation(s)
- Ilzira A Minigalieva
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Boris A Katsnelson
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Larisa I Privalova
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Marina P Sutunkova
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Vladimir B Gurvich
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Vladimir Y Shur
- The Institute of Natural Sciences, The Ural Federal University, Ekaterinburg 620000, Russia.
| | - Ekaterina V Shishkina
- The Institute of Natural Sciences, The Ural Federal University, Ekaterinburg 620000, Russia.
| | - Irene E Valamina
- The Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., Ekaterinburg 620109, Russia.
| | - Oleg H Makeyev
- The Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., Ekaterinburg 620109, Russia.
| | - Vladimir G Panov
- Institute of Industrial Ecology, the Urals Branch of the Russian Academy of Sciences, 20 Sofia Kovalevskaya Str., Ekaterinburg 620990, Russia.
| | - Anatoly N Varaksin
- Institute of Industrial Ecology, the Urals Branch of the Russian Academy of Sciences, 20 Sofia Kovalevskaya Str., Ekaterinburg 620990, Russia.
| | - Tatiana V Bushueva
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Renata R Sakhautdinova
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Svetlana V Klinova
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Svetlana N Solovyeva
- The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia.
| | - Ekaterina Y Meshtcheryakova
- The Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., Ekaterinburg 620109, Russia.
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Younes M, Aggett P, Aguilar F, Crebelli R, Dusemund B, Filipič M, Frutos MJ, Galtier P, Gott D, Gundert-Remy U, Kuhnle GG, Leblanc JC, Lillegaard IT, Moldeus P, Mortensen A, Oskarsson A, Stankovic I, Waalkens-Berendsen I, Woutersen RA, Wright M, Boon P, Chrysafidis D, Gürtler R, Mosesso P, Parent-Massin D, Tobback P, Kovalkovicova N, Rincon AM, Tard A, Lambré C. Re-evaluation of silicon dioxide (E 551) as a food additive. EFSA J 2018; 16:e05088. [PMID: 32625658 PMCID: PMC7009582 DOI: 10.2903/j.efsa.2018.5088] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS) provides a scientific opinion re-evaluating the safety of silicon dioxide (E 551) when used as a food additive. The forms of synthetic amorphous silica (SAS) used as E 551 include fumed silica and hydrated silica (precipitated silica, silica gel and hydrous silica). The Scientific Committee on Food (SCF) established a group acceptable daily intake (ADI) 'not specified' for silicon dioxide and silicates. SAS materials used in the available biological and toxicological studies were different in their physicochemical properties; their characteristics were not always described in sufficient detail. Silicon dioxide appears to be poorly absorbed. However, silicon-containing material (in some cases presumed to be silicon dioxide) was found in some tissues. Despite the limitations in the subchronic, reproductive and developmental toxicological studies, including studies with nano silicon dioxide, there was no indication of adverse effects. E 551 does not raise a concern with respect to genotoxicity. In the absence of a long-term study with nano silicon dioxide, the Panel could not extrapolate the results from the available chronic study with a material, which does not cover the full-size range of the nanoparticles that could be present in the food additive E 551, to a material complying with the current specifications for E 551. These specifications do not exclude the presence of nanoparticles. The highest exposure estimates were at least one order of magnitude lower than the no observed adverse effect levels (NOAELs) identified (the highest doses tested). The Panel concluded that the EU specifications are insufficient to adequately characterise the food additive E 551. Clear characterisation of particle size distribution is required. Based on the available database, there was no indication for toxicity of E 551 at the reported uses and use levels. Because of the limitations in the available database, the Panel was unable to confirm the current ADI 'not specified'. The Panel recommended some modifications of the EU specifications for E 551.
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