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Higashi Y, Nishida C, Tomonaga T, Izumi H, Kawai N, Morimoto T, Hara K, Yamasaki K, Moriyama A, Takeshita JI, Wang KY, Higashi H, Ono R, Sumiya K, Sakurai K, Yatera K, Morimoto Y. Intratracheal instillation of polyacrylic acid induced pulmonary fibrosis with elevated transforming growth factor-β1 and connective tissue growth factor. Toxicology 2024; 506:153845. [PMID: 38801935 DOI: 10.1016/j.tox.2024.153845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
We investigated the intratracheal instillation of Polyacrylic acid (PAA) in rats to determine if it would cause pulmonary disorders, and to see what factors would be associated with the pathological changes. Male F344 rats were intratracheally instilled with low (0.2 mg/rat) and high (1.0 mg/rat) doses of PAA. They were sacrificed at 3 days, 1 week, 1 month, 3 months, and 6 months after PAA exposure to examine inflammatory and fibrotic changes in the lungs. There was a persistent increase in the neutrophil count, lactate dehydrogenase (LDH) levels, cytokine-induced neutrophil chemoattractant (CINC) values in bronchoalveolar lavage fluid (BALF), and heme oxygenase-1 (HO-1) in lung tissue. Transforming growth factor-beta 1 (TGF-β1), a fibrotic factor, showed a sustained increase in the BALF until 6 months after intratracheal instillation, and connective tissue growth factor (CTGF) in lung tissue was elevated at 3 days after exposure. Histopathological findings in the lung tissue showed persistent (more than one month) inflammation, fibrotic changes, and epithelial-mesenchymal transition (EMT) changes. There was also a strong correlation between TGF-β1 in the BALF and, especially, in the fibrosis score of histopathological specimens. Intratracheal instillation of PAA induced persistent neutrophilic inflammation, fibrosis, and EMT in the rats' lungs, and TGF-β1 and CTGF appeared to be associated with the persistent fibrosis.
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Affiliation(s)
- Yasuyuki Higashi
- Department of Respiratory Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Chinatsu Nishida
- Department of Environmental Health Engineering, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Taisuke Tomonaga
- Department of Occupational Pneumology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Hiroto Izumi
- Department of Occupational Pneumology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Naoki Kawai
- Department of Occupational Pneumology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Toshiki Morimoto
- Department of Respiratory Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Kanako Hara
- Department of Respiratory Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Kei Yamasaki
- Department of Respiratory Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Akihiro Moriyama
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Jun-Ichi Takeshita
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Ke-Yong Wang
- Shared-Use Research Center, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Hidenori Higashi
- Department of Environmental Health Engineering, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Ryohei Ono
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1, Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kazuki Sumiya
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1, Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1, Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kazuhiro Yatera
- Department of Respiratory Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Yasuo Morimoto
- Department of Occupational Pneumology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan.
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Samal RR, Subudhi U. Biochemical and biophysical interaction of rare earth elements with biomacromolecules: A comprehensive review. CHEMOSPHERE 2024; 357:142090. [PMID: 38648983 DOI: 10.1016/j.chemosphere.2024.142090] [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: 12/12/2023] [Revised: 04/06/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
The growing utilization of rare earth elements (REEs) in industrial and technological applications has captured global interest, leading to the development of high-performance technologies in medical diagnosis, agriculture, and other electronic industries. This accelerated utilization has also raised human exposure levels, resulting in both favourable and unfavourable impacts. However, the effects of REEs are dependent on their concentration and molecular species. Therefore, scientific interest has increased in investigating the molecular interactions of REEs with biomolecules. In this current review, particular attention was paid to the molecular mechanism of interactions of Lanthanum (La), Cerium (Ce), and Gadolinium (Gd) with biomolecules, and the biological consequences were broadly interpreted. The review involved gathering and evaluating a vast scientific collection which primarily focused on the impact associated with REEs, ranging from earlier reports to recent discoveries, including studies in human and animal models. Thus, understanding the molecular interactions of each element with biomolecules will be highly beneficial in elucidating the consequences of REEs accumulation in the living organisms.
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Affiliation(s)
- Rashmi R Samal
- Biochemistry & Biophysics Laboratory, Environment & Sustainability Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Umakanta Subudhi
- Biochemistry & Biophysics Laboratory, Environment & Sustainability Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Zhang Y, Liu S, Peng J, Cheng S, Zhang Q, Zhang N, Zhou Z, Zhang Y, Zhao Y, Liu T. Biomimetic Nanozymes Suppressed Ferroptosis to Ameliorate Doxorubicin-Induced Cardiotoxicity via Synergetic Effect of Antioxidant Stress and GPX4 Restoration. Nutrients 2023; 15:nu15051090. [PMID: 36904089 PMCID: PMC10005374 DOI: 10.3390/nu15051090] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 02/24/2023] Open
Abstract
Mitochondria-dependent ferroptosis plays an important role in the pathogenesis of doxorubicin (DOX)-induced cardiotoxicity (DIC), which remains a clinical challenge due to the lack of effective interventions. Cerium oxide (CeO2), a representative nanozyme, has attracted much attention because of its antioxidant properties. This study evaluated CeO2-based nanozymes for the prevention and treatment of DIC in vitro and in vivo by adding nanoparticles (NPs), which were synthesized by biomineralization, to the culture or giving them to the mice, and the ferroptosis-specific inhibitor ferrostatin-1 (Fer-1) was used as control. The prepared NPs exhibited an excellent antioxidant response and glutathione peroxidase 4 (GPX4)-depended bioregulation, with the additional merits of bio-clearance and long retention in the heart. The experiments showed that NP treatment could significantly reverse myocardial structural and electrical remodeling, and reduce myocardial necrosis. These cardioprotective therapeutic effects were associated with their ability to alleviate oxidative stress, mitochondrial lipid peroxidation, and mitochondrial membrane potential damage, with a superior efficiency to the Fer-1. The study also found that the NPs significantly restored the expression of GPX4 and mitochondrial-associated proteins, thereby restoring mitochondria-dependent ferroptosis. Therefore, the study provides some insights into the role of ferroptosis in DIC. It also shows that CeO2-based nanozymes could be a promising prevention and treatment candidate as a novel cardiomyocyte ferroptosis protector to mitigate DIC and improve prognosis and quality of life in cancer patients.
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Affiliation(s)
- Yunpeng Zhang
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Shuang Liu
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Jing Peng
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Shifeng Cheng
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Qingling Zhang
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Nan Zhang
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Zandong Zhou
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Yue Zhang
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Yang Zhao
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Correspondence: (Y.Z.); (T.L.); Tel.: +86-022-88328617 (T.L.)
| | - Tong Liu
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Correspondence: (Y.Z.); (T.L.); Tel.: +86-022-88328617 (T.L.)
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McLean P, Mueller W, Gosens I, Cassee FR, Rothen-Rutishauser B, Boyles M, Tran L. Establishing relationships between particle-induced in vitro and in vivo inflammation endpoints to better extrapolate between in vitro markers and in vivo fibrosis. Part Fibre Toxicol 2023; 20:5. [PMID: 36759844 PMCID: PMC9909881 DOI: 10.1186/s12989-023-00516-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Toxicity assessment for regulatory purposes is starting to move away from traditional in vivo methods and towards new approach methodologies (NAM) such as high-throughput in vitro models and computational tools. For materials with limited hazard information, utilising quantitative Adverse Outcome Pathways (AOPs) in a testing strategy involving NAM can produce information relevant for risk assessment. The aim of this work was to determine the feasibility of linking in vitro endpoints to in vivo events, and moreover to key events associated with the onset of a chosen adverse outcome to aid in the development of NAM testing strategies. To do this, we focussed on the adverse outcome pathway (AOP) relating to the onset of pulmonary fibrosis. RESULTS We extracted in vivo and in vitro dose-response information for particles known to induce this pulmonary fibrosis (crystalline silica, specifically α-quartz). To test the in vivo-in vitro extrapolation (IVIVE) determined for crystalline silica, cerium dioxide nanoparticles (nano-CeO2) were used as a case study allowing us to evaluate our findings with a less studied substance. The IVIVE methodology outlined in this paper is formed of five steps, which can be more generally summarised into two categories (i) aligning the in vivo and in vitro dosimetry, (ii) comparing the dose-response curves and derivation of conversion factors. CONCLUSION Our analysis shows promising results with regards to correlation of in vitro cytokine secretion to in vivo acute pulmonary inflammation assessed by polymorphonuclear leukocyte influx, most notable is the potential of using IL-6 and IL-1β cytokine secretion from simple in vitro submerged models as a screening tool to assess the likelihood of lung inflammation at an early stage in product development, hence allowing a more targeted investigation using either a smaller, more targeted in vivo study or in the future a more complex in vitro protocol. This paper also highlights the strengths and limitations as well as the current difficulties in performing IVIVE assessment and suggestions for overcoming these issues.
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Affiliation(s)
- Polly McLean
- Institute of Occupational Medicine (IOM), Edinburgh, UK.
| | - William Mueller
- grid.410343.10000 0001 2224 0230Institute of Occupational Medicine (IOM), Edinburgh, UK
| | - Ilse Gosens
- grid.31147.300000 0001 2208 0118National Institute for Public Health and the Environment – RIVM, Bilthoven, The Netherlands
| | - Flemming R. Cassee
- grid.31147.300000 0001 2208 0118National Institute for Public Health and the Environment – RIVM, Bilthoven, The Netherlands ,grid.5477.10000000120346234Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Barbara Rothen-Rutishauser
- grid.8534.a0000 0004 0478 1713Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Matthew Boyles
- grid.410343.10000 0001 2224 0230Institute of Occupational Medicine (IOM), Edinburgh, UK
| | - Lang Tran
- grid.410343.10000 0001 2224 0230Institute of Occupational Medicine (IOM), Edinburgh, UK
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Negrescu AM, Killian MS, Raghu SNV, Schmuki P, Mazare A, Cimpean A. Metal Oxide Nanoparticles: Review of Synthesis, Characterization and Biological Effects. J Funct Biomater 2022; 13:jfb13040274. [PMID: 36547533 PMCID: PMC9780975 DOI: 10.3390/jfb13040274] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022] Open
Abstract
In the last few years, the progress made in the field of nanotechnology has allowed researchers to develop and synthesize nanosized materials with unique physicochemical characteristics, suitable for various biomedical applications. Amongst these nanomaterials, metal oxide nanoparticles (MONPs) have gained increasing interest due to their excellent properties, which to a great extent differ from their bulk counterpart. However, despite such positive advantages, a substantial body of literature reports on their cytotoxic effects, which are directly correlated to the nanoparticles' physicochemical properties, therefore, better control over the synthetic parameters will not only lead to favorable surface characteristics but may also increase biocompatibility and consequently lower cytotoxicity. Taking into consideration the enormous biomedical potential of MONPs, the present review will discuss the most recent developments in this field referring mainly to synthesis methods, physical and chemical characterization and biological effects, including the pro-regenerative and antitumor potentials as well as antibacterial activity. Moreover, the last section of the review will tackle the pressing issue of the toxic effects of MONPs on various tissues/organs and cell lines.
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Affiliation(s)
- Andreea Mariana Negrescu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Manuela S. Killian
- Department of Chemistry and Biology, Chemistry and Structure of Novel Materials, University of Siegen, Paul-Bonatz-Str. 9-11, 57076 Siegen, Germany
| | - Swathi N. V. Raghu
- Department of Chemistry and Biology, Chemistry and Structure of Novel Materials, University of Siegen, Paul-Bonatz-Str. 9-11, 57076 Siegen, Germany
| | - Patrik Schmuki
- Department of Materials Science WW4-LKO, Friedrich-Alexander University, 91058 Erlangen, Germany
- Regional Centre of Advanced Technologies and Materials, Palacky University, Listopadu 50A, 772 07 Olomouc, Czech Republic
- Chemistry Department, King Abdulaziz University, Jeddah 80203, Saudi Arabia
| | - Anca Mazare
- Department of Materials Science WW4-LKO, Friedrich-Alexander University, 91058 Erlangen, Germany
- Advanced Institute for Materials Research (AIMR), National University Corporation Tohoku University (TU), Sendai 980-8577, Japan
- Correspondence:
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
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Cui L, Wang X, Zhao X, Sun B, Xia T, Hu S. CeO 2 nanoparticles induce pulmonary fibrosis via activating S1P pathway as revealed by metabolomics. NANO TODAY 2022; 45:101559. [PMID: 36910843 PMCID: PMC9997866 DOI: 10.1016/j.nantod.2022.101559] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
CeO2 nanoparticles (NPs) have been shown to cause lung fibrosis, however, the exact underlying molecular mechanisms are poorly understood. In this study, we have conducted a mass spectrometry-based global metabolomic analysis of human bronchial epithelial BEAS-2B cells treated by CeO2 NPs with different aspect ratios and assessed their toxicity on the bronchial epithelial cells by various cell-based functional assays. Although CeO2 NPs at doses ranging from 12.5 μg/mL to 25 μg/mL displayed low cytotoxicity on the bronchial epithelial cells, the metabolomic analysis revealed a number of metabolites in the cellular metabolic pathways of sphingosine-1-phosphate, fatty acid oxidation, inflammation, etc. were significantly altered by CeO2 NPs, especially those with high aspect ratios. More importantly, the robustness of metabolomics findings was further successfully validated in mouse models upon acute and chronic exposures to CeO2 NPs. Mechanistically, CeO2 NPs upregulated transforming growth factor beta-1 (TGF-β1) levels in BEAS-2B cells in an aspect ratio-dependent manner through enhancing the expression of early growth response protein 1 (EGR-1). In addition, both in vitro and in vivo studies demonstrated that CeO2 NPs significantly induced the expression of sphingosine kinase 1 (SHPK1), phosphorylated Smad2/3 and lung fibrosis markers. Moreover, targeting SPHK1, TGFβ receptor or Smad3 phosphorylation significantly attenuated the fibrosis-promoting effects of CeO2 NPs, and SPHK1-S1P pathway exerted a greater effect on the TGF-β1-mediated lung fibrosis compared to the conventional Smad2/3 pathway. Collectively, our studies have identified the metabolomic changes in BEAS-2B cells exposed to CeO2 NPs with different aspect ratios and revealed the subtle changes in metabolic activities that traditional approaches might have missed. More importantly, we have discovered a previously unknown molecular mechanism underlying CeO2 NP-induced lung fibrosis with different aspect ratios, shedding new insights on the environmental hazard potential of CeO2 NPs.
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Affiliation(s)
- Li Cui
- School of Dentistry, Jonsson Comprehensive Cancer Center, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology (UC CEIN), California NanoSystems Institute, Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
| | - Xinyuan Zhao
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China
| | - Bingbing Sun
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology (UC CEIN), California NanoSystems Institute, Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
| | - Shen Hu
- School of Dentistry, Jonsson Comprehensive Cancer Center, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
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Yokel RA, Ensor ML, Vekaria HJ, Sullivan PG, Feola DJ, Stromberg A, Tseng MT, Harrison DA. Cerium dioxide, a Jekyll and Hyde nanomaterial, can increase basal and decrease elevated inflammation and oxidative stress. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 43:102565. [PMID: 35595014 DOI: 10.1016/j.nano.2022.102565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/18/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
It was hypothesized that the catalyst nanoceria can increase inflammation/oxidative stress from the basal and reduce it from the elevated state. Macrophages clear nanoceria. To test the hypothesis, M0 (non-polarized), M1- (classically activated, pro-inflammatory), and M2-like (alternatively activated, regulatory phenotype) RAW 264.7 macrophages were nanoceria exposed. Inflammatory responses were quantified by IL-1β level, arginase activity, and RT-qPCR and metabolic changes and oxidative stress by the mito and glycolysis stress tests (MST and GST). Morphology was determined by light microscopy, macrophage phenotype marker expression, and a novel three-dimensional immunohistochemical method. Nanoceria blocked IL-1β and arginase effects, increased M0 cell OCR and GST toward the M2 phenotype and altered multiple M1- and M2-like cell endpoints toward the M0 level. M1-like cells had greater volume and less circularity/roundness. M2-like cells had greater volume than M0 macrophages. The results are overall consistent with the hypothesis.
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Affiliation(s)
- Robert A Yokel
- Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - Marsha L Ensor
- Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40536-0596, USA
| | - Hemendra J Vekaria
- Spinal Cord & Brain Injury Research Center, University of Kentucky, Lexington, KY 40536-0509, USA; Neuroscience, University of Kentucky, Lexington, KY 40536-0509, USA
| | - Patrick G Sullivan
- Spinal Cord & Brain Injury Research Center, University of Kentucky, Lexington, KY 40536-0509, USA; Neuroscience, University of Kentucky, Lexington, KY 40536-0509, USA
| | - David J Feola
- Pharmacy Practice and Science, University of Kentucky, Lexington, KY 40536-0596, USA
| | - Arnold Stromberg
- Statistics, University of Kentucky, Lexington, KY 40536-0082, USA
| | - Michael T Tseng
- Anatomical Sciences & Neurobiology, University of Louisville, Louisville, KY 40202, USA
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Chuliá-Peris L, Carreres-Rey C, Gabasa M, Alcaraz J, Carretero J, Pereda J. Matrix Metalloproteinases and Their Inhibitors in Pulmonary Fibrosis: EMMPRIN/CD147 Comes into Play. Int J Mol Sci 2022; 23:ijms23136894. [PMID: 35805895 PMCID: PMC9267107 DOI: 10.3390/ijms23136894] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/15/2022] [Accepted: 06/15/2022] [Indexed: 02/06/2023] Open
Abstract
Pulmonary fibrosis (PF) is characterized by aberrant extracellular matrix (ECM) deposition, activation of fibroblasts to myofibroblasts and parenchymal disorganization, which have an impact on the biomechanical traits of the lung. In this context, the balance between matrix metalloproteinases (MMPs) and their tissue inhibitors of metalloproteinases (TIMPs) is lost. Interestingly, several MMPs are overexpressed during PF and exhibit a clear profibrotic role (MMP-2, -3, -8, -11, -12 and -28), but a few are antifibrotic (MMP-19), have both profibrotic and antifibrotic capacity (MMP7), or execute an unclear (MMP-1, -9, -10, -13, -14) or unknown function. TIMPs are also overexpressed in PF; hence, the modulation and function of MMPs and TIMP are more complex than expected. EMMPRIN/CD147 (also known as basigin) is a transmembrane glycoprotein from the immunoglobulin superfamily (IgSF) that was first described to induce MMP activity in fibroblasts. It also interacts with other molecules to execute non-related MMP aactions well-described in cancer progression, migration, and invasion. Emerging evidence strongly suggests that CD147 plays a key role in PF not only by MMP induction but also by stimulating fibroblast myofibroblast transition. In this review, we study the structure and function of MMPs, TIMPs and CD147 in PF and their complex crosstalk between them.
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Affiliation(s)
- Lourdes Chuliá-Peris
- Department of Physiology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain; (L.C.-P.); (C.C.-R.); (J.C.)
| | - Cristina Carreres-Rey
- Department of Physiology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain; (L.C.-P.); (C.C.-R.); (J.C.)
| | - Marta Gabasa
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain; (M.G.); (J.A.)
| | - Jordi Alcaraz
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain; (M.G.); (J.A.)
- Thoracic Oncology Unit, Hospital Clinic Barcelona, 08036 Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute for Science and Technology (BIST), 08028 Barcelona, Spain
| | - Julián Carretero
- Department of Physiology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain; (L.C.-P.); (C.C.-R.); (J.C.)
| | - Javier Pereda
- Department of Physiology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain; (L.C.-P.); (C.C.-R.); (J.C.)
- Correspondence:
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9
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Seiffert SB, Vennemann A, Nordhorn ID, Kröger S, Wiemann M, Karst U. LA-ICP-MS and Immunohistochemical Staining with Lanthanide-Labeled Antibodies to Study the Uptake of CeO 2 Nanoparticles by Macrophages in Tissue Sections. Chem Res Toxicol 2022; 35:981-991. [PMID: 35583351 DOI: 10.1021/acs.chemrestox.1c00433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to the increasing use and production of CeO2 nanoparticles (NPs), the likelihood of exposure especially via the air rapidly grows. However, the uptake of CeO2 NPs via the lung and the resulting distribution into various cell types of remote organs are not well understood because classical analytical methods provide limited spatial information. In this study, laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) was combined with immunohistochemical (IHC) staining with lanthanide-labeled antibodies to investigate the distribution of intratracheally instilled CeO2 NPs from the rat lung to lymph nodes, spleen, and liver after 3 h, 3 days, and 21 days. We selected regions of interest after fast imaging using LA-ICP-MS in low-resolution mode and conducted high-resolution LA-ICP-MS in combination with IHC for cellular localization. The lanthanide labeling, which was largely congruent with conventional fluorescent labeling, allowed us to calculate the association rates of Ce to specific cell types. Major portions of Ce were found to be associated with phagocytic cells in the lung, lymph nodes, spleen, and liver. In the lung, almost 94% of the Ce was co-localized with CD68-positive alveolar macrophages after 21 days. Ce was also detected in the lymph nodes outside macrophages 3 h post instillation but shifted to macrophage-associated locations. In the liver, Ce accumulations associated with Kupffer cells (CD163-positive) were found. Ce-containing populations of metallophilic and marginal zone macrophages (both CD169-positive) as well as red pulp macrophages (CD68-positive) were identified as major targets in the spleen. Overall, high-resolution LA-ICP-MS analysis in combination with IHC staining with lanthanide-labeled antibodies is a suitable tool to quantify and localize Ce associated with specific cell types and to estimate their particle burden under in vivo conditions.
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Affiliation(s)
- Svenja B Seiffert
- Department of Material Physics, Analytics & Formulation, BASF SE, Ludwigshafen am Rhein, 67056 Ludwigshafen, Germany.,Institute of Inorganic and Analytical Chemistry, University of Münster, 48149 Münster, Germany
| | - Antje Vennemann
- IBE R&D Institute for Lung Health gGmbH, 48149 Münster, Germany
| | - Ilona D Nordhorn
- Institute of Inorganic and Analytical Chemistry, University of Münster, 48149 Münster, Germany
| | - Sabrina Kröger
- Department of Material Physics, Analytics & Formulation, BASF SE, Ludwigshafen am Rhein, 67056 Ludwigshafen, Germany
| | - Martin Wiemann
- IBE R&D Institute for Lung Health gGmbH, 48149 Münster, Germany
| | - Uwe Karst
- Institute of Inorganic and Analytical Chemistry, University of Münster, 48149 Münster, Germany
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10
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Liu M, Huang Q, Zhu Y, Chen L, Li Y, Gong Z, Ai K. Harnessing reactive oxygen/nitrogen species and inflammation: Nanodrugs for liver injury. Mater Today Bio 2022; 13:100215. [PMID: 35198963 PMCID: PMC8850330 DOI: 10.1016/j.mtbio.2022.100215] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 02/04/2022] [Accepted: 02/06/2022] [Indexed: 12/11/2022] Open
Abstract
Overall, 12% of the global population (800 million) suffers from liver disease, which causes 2 million deaths every year. Liver injury involving characteristic reactive oxygen/nitrogen species (RONS) and inflammation plays a key role in progression of liver disease. As a key metabolic organ of the human body, the liver is susceptible to injury from various sources, including COVID-19 infection. Owing to unique structural features and functions of the liver, most current antioxidants and anti-inflammatory drugs are limited against liver injury. However, the characteristics of the liver could be utilized in the development of nanodrugs to achieve specific enrichment in the liver and consequently targeted treatment. Nanodrugs have shown significant potential in eliminating RONS and regulating inflammation, presenting an attractive therapeutic tool for liver disease through controlling liver injury. Therefore, the main aim of the current review is to provide a comprehensive summary of the latest developments contributing to our understanding of the mechanisms underlying nanodrugs in the treatment of liver injury via harnessing RONS and inflammation. Meanwhile, the prospects of nanodrugs for liver injury therapy are systematically discussed, which provides a sound platform for novel therapeutic insights and inspiration for design of nanodrugs to treat liver disease.
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Affiliation(s)
- Min Liu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Qiong Huang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yan Zhu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Li Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Yumei Li
- Department of Assisted Reproduction, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zhicheng Gong
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Kelong Ai
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
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11
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Higashi Y, Morimoto Y, Nishida C, Tomonaga T, Izumi H, Wang K, Higashi H, Ono R, Sumiya K, Sakurai K, Yamasaki K, Yatera K. Pulmonary disorder induced by cross‐linked polyacrylic acid. J Occup Health 2022; 64:e12369. [DOI: 10.1002/1348-9585.12369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/03/2022] [Accepted: 10/21/2022] [Indexed: 12/03/2022] Open
Affiliation(s)
- Yasuyuki Higashi
- Department of Respiratory Medidatacine University of Occupational and Environmental Health Fukuoka Japan
| | - Yasuo Morimoto
- Department of Occupational Pneumology Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health Fukuoka Japan
| | - Chinatsu Nishida
- Department of Respiratory Medidatacine University of Occupational and Environmental Health Fukuoka Japan
| | - Taisuke Tomonaga
- Department of Occupational Pneumology Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health Fukuoka Japan
| | - Hiroto Izumi
- Department of Occupational Pneumology Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health Fukuoka Japan
| | - Ke‐Yong Wang
- Shared‐Use Research Center, School of Medicine University of Occupational and Environmental Health, Japan Fukuoka Japan
| | - Hidenori Higashi
- Department of Environmental Health Engineering Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health Fukuoka Japan
| | - Ryohei Ono
- Department of Chemistry and Biochemistry The University of Kitakyushu Fukuoka Japan
| | - Kazuki Sumiya
- Department of Chemistry and Biochemistry The University of Kitakyushu Fukuoka Japan
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry The University of Kitakyushu Fukuoka Japan
| | - Kei Yamasaki
- Department of Respiratory Medidatacine University of Occupational and Environmental Health Fukuoka Japan
| | - Kazuhiro Yatera
- Department of Respiratory Medidatacine University of Occupational and Environmental Health Fukuoka Japan
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12
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Kim J, Hong G, Mazaleuskaya L, Hsu JC, Rosario-Berrios DN, Grosser T, Cho-Park PF, Cormode DP. Ultrasmall Antioxidant Cerium Oxide Nanoparticles for Regulation of Acute Inflammation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60852-60864. [PMID: 34914872 PMCID: PMC8720076 DOI: 10.1021/acsami.1c16126] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Cerium oxide nanoparticles (CeONP), having potent antioxidant properties, are highly promising nanomaterials for treatment of diseases in which oxidative stress from excessive reactive oxygen species (ROS) plays a critical role in the pathogenesis and progression. However, most previously reported CeONP formulations were not efficiently cleared from the body, precluding their clinical translation. Herein, we report ultrasmall CeONP that can mitigate activation of macrophages and subsequent acute inflammation. It is found that these CeONP can effectively scavenge reactive species, inhibit macrophage activation, and minimize their recruitment and infiltration to the inflammation site, which lead to alleviation of edema and pain hypersensitivity. Moreover, we demonstrate that CeONP can be effectively excreted from the body within 24 h of systemic administration, minimizing long-term toxicity concerns. Altogether, our findings suggest that CeONP may be explored as both antioxidant and anti-inflammatory agents that can reduce acute inflammation with a better safety profile than existing nanoparticles.
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13
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Williams AH, Hebert AM, Boehm RC, Huddleston ME, Jenkins MR, Velev OD, Nelson MT. Bioscaffold Stiffness Mediates Aerosolized Nanoparticle Uptake in Lung Epithelial Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50643-50656. [PMID: 34668373 DOI: 10.1021/acsami.1c09701] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, highly porous, ultrasoft polymeric mats mimicking human tissues were formed from novel polyurethane soft dendritic colloids (PU SDCs). PU SDCs have a unique fibrillar morphology controlled by antisolvent precipitation. When filtered from suspension, PU SDCs form mechanically robust nonwoven mats. The stiffness of the SDC mats can be tuned for physiological relevance. The unique physiochemical characteristics of the PU SDC particles dictate the mechanical properties resulting in tunable elastic moduli ranging from 200 to 800 kPa. The human lung A549 cells cultured on both stiff and soft PU SDC membranes were found to be viable, capable of supporting the air-liquid interface (ALI) cell culture, and maintained barrier integrity. Furthermore, A549 cellular viability and uptake efficiency of aerosolized tannic acid-coated gold nanoparticles (Ta-Au) was found to depend on elastic modulus and culture conditions. Ta-Au nanoparticle uptake was twofold and fourfold greater on soft PU SDCs, when cultured at submerged and ALI conditions, respectively. The significant increase in endocytosed Ta-Au resulted in a 20% decrease in viability, and a 4-fold increase in IL-8 cytokine secretion when cultured on soft PU SDCs at ALI. Common tissue culture materials exhibit super-physiological elastic moduli, a factor found to be critical in analyzing nanomaterial cellular interactions and biological responses.
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Affiliation(s)
- Austin H Williams
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Adrien M Hebert
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
| | - Robert C Boehm
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
| | - Mary E Huddleston
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
- UES, Inc., Dayton, Ohio 45432, United States
| | - Meghan R Jenkins
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
- UES, Inc., Dayton, Ohio 45432, United States
| | - Orlin D Velev
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - M Tyler Nelson
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
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14
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Cerium Oxide Nanoparticles Alleviate Hepatic Fibrosis Phenotypes In Vitro. Int J Mol Sci 2021; 22:ijms222111777. [PMID: 34769206 PMCID: PMC8584085 DOI: 10.3390/ijms222111777] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022] Open
Abstract
Exposure to metallic nanoparticles (NPs) can result in inadvertent NP accumulation in body tissues. While their subsequent cellular interactions can lead to unintended consequences and are generally regarded as detrimental for health, they can on occasion mediate biologically beneficial effects. Among NPs, cerium oxide nanoparticles (CeO2 NP) possess strong antioxidant properties and have shown to alleviate certain pathological conditions. Herein, we show that the presence of cubic 25 nm CeO2 NP was able to reduce TGF-β-mediated activation in the cultured hepatic stellate cell line LX2 by reducing oxidative stress levels and TGF-β-mediated signalling. These cells displayed reduced classical liver fibrosis phenotypes, such as diminished fibrogenesis, altered matrix degradation, decreased cell motility, modified contractability and potentially lowered autophagy. These findings demonstrate that CeO2 NP may be able to ameliorate hepatic fibrosis and suggest a possible therapeutic pathway for an otherwise difficult-to-treat condition.
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15
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Saifi MA, Seal S, Godugu C. Nanoceria, the versatile nanoparticles: Promising biomedical applications. J Control Release 2021; 338:164-189. [PMID: 34425166 DOI: 10.1016/j.jconrel.2021.08.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 12/27/2022]
Abstract
Nanotechnology has been a boon for the biomedical field due to the freedom it provides for tailoring of pharmacokinetic properties of different drug molecules. Nanomedicine is the medical application of nanotechnology for the diagnosis, treatment and/or management of the diseases. Cerium oxide nanoparticles (CNPs) are metal oxide-based nanoparticles (NPs) which possess outstanding reactive oxygen species (ROS) scavenging activities primarily due to the availability of "oxidation switch" on their surface. These NP have been found to protect from a number of disorders with a background of oxidative stress such as cancer, diabetes etc. In fact, the CNPs have been found to possess the environment-dependent ROS modulating properties. In addition, the inherent catalase, SOD, oxidase, peroxidase and phosphatase mimetic properties of CNPs provide them superiority over a number of NPs. Further, chemical reactivity of CNPs seems to be a function of their surface chemistry which can be precisely tuned by defect engineering. However, the contradictory reports make it necessary to critically evaluate the potential of CNPs, in the light of available literature. The review is aimed at probing the feasibility of CNPs to push towards the clinical studies. Further, we have also covered and censoriously discussed the suspected negative impacts of CNPs before making our way to a consensus. This review aims to be a comprehensive, authoritative, critical, and accessible review of general interest to the scientific community.
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Affiliation(s)
- Mohd Aslam Saifi
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Sudipta Seal
- University of Central Florida, 12760 Pegasus Drive ENG I, Suite 207, Orlando, FL 32816, USA
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India.
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16
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Fakhrullin R, Nigamatzyanova L, Fakhrullina G. Dark-field/hyperspectral microscopy for detecting nanoscale particles in environmental nanotoxicology research. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 772:145478. [PMID: 33571774 DOI: 10.1016/j.scitotenv.2021.145478] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Nanoscale contaminants (including engineered nanoparticles and nanoplastics) pose a significant threat to organisms and environment. Rapid and non-destructive detection and identification of nanosized materials in cells, tissues and organisms is still challenging, although a number of conventional methods exist. These approaches for nanoparticles imaging and characterisation both inside the cytoplasm and on the cell or tissue outer surfaces, such as electron or scanning probe microscopies, are unquestionably potent tools, having excellent resolution and supplemented with chemical analysis capabilities. However, imaging and detection of nanomaterials in situ, in wet unfixed and even live samples, such as living isolated cells, microorganisms, protozoans and miniature invertebrates using electron microscopy is practically impossible, because of the elaborate sample preparation requiring chemical fixation, contrast staining, matrix embedding and exposure into vacuum. Atomic force microscopy, in several cases, can be used for imaging and mechanical analysis of live cells and organisms under ambient conditions, however this technique allows for investigation of surfaces. Therefore, a different approach allowing for imaging and differentiation of nanoscale particles in wet samples is required. Dark-field microscopy as an optical microscopy technique has been popular among researchers, mostly for imaging relatively large specimens. In recent years, the so-called "enhanced dark field" microscopy based on using higher numerical aperture light condensers and variable numerical aperture objectives has emegred, which allows for imaging of nanoscale particles (starting from 5 nm nanospheres) using almost conventional optical microscopy methodology. Hyperspectral imaging can turn a dark-field optical microscope into a powerful chemical characterisation tool. As a result, this technique is becoming popular in environmental nanotoxicology studies. In this Review Article we introduce the reader into the methodology of enhanced dark-field and dark-field-based hyperspectral microscopy, covering the most important advances in this rapidly-expanding area of environmental nanotoxicology.
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Affiliation(s)
- Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan 420008, Republic of Tatarstan, Russian Federation.
| | - Läysän Nigamatzyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan 420008, Republic of Tatarstan, Russian Federation
| | - Gölnur Fakhrullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan 420008, Republic of Tatarstan, Russian Federation
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Engin AB. Combined Toxicity of Metal Nanoparticles: Comparison of Individual and Mixture Particles Effect. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1275:165-193. [PMID: 33539016 DOI: 10.1007/978-3-030-49844-3_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Toxicity of metal nanoparticles (NPs) are closely associated with increasing intracellular reactive oxygen species (ROS) and the levels of pro-inflammatory mediators. However, NP interactions and surface complexation reactions alter the original toxicity of individual NPs. To date, toxicity studies on NPs have mostly been focused on individual NPs instead of the combination of several species. It is expected that the amount of industrial and highway-acquired NPs released into the environment will further increase in the near future. This raises the possibility that various types of NPs could be found in the same medium, thereby, the adverse effects of each NP either could be potentiated, inhibited or remain unaffected by the presence of the other NPs. After uptake of NPs into the human body from various routes, protein kinases pathways mediate their toxicities. In this context, family of mitogen-activated protein kinases (MAPKs) is mostly efficient. Despite each NP activates almost the same metabolic pathways, the toxicity induced by a single type of NP is different than the case of co-exposure to the combined NPs. The scantiness of toxicological data on NPs combinations displays difficulties to determine, if there is any risk associated with exposure to combined nanomaterials. Currently, in addition to mathematical analysis (Response surface methodology; RSM), the quantitative-structure-activity relationship (QSAR) is used to estimate the toxicity of various metal oxide NPs based on their physicochemical properties and levels applied. In this chapter, it is discussed whether the coexistence of multiple metal NPs alter the original toxicity of individual NP. Additionally, in the part of "Toxicity of diesel emission/exhaust particles (DEP)", the known individual toxicity of metal NPs within the DEP is compared with the data regarding toxicity of total DEP mixture.
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Affiliation(s)
- Ayse Basak Engin
- Department of Toxicology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.
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18
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Sahu A, Jeon J, Lee MS, Yang HS, Tae G. Antioxidant and anti-inflammatory activities of Prussian blue nanozyme promotes full-thickness skin wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 119:111596. [DOI: 10.1016/j.msec.2020.111596] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/31/2020] [Accepted: 10/02/2020] [Indexed: 12/12/2022]
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Annangi B, Lu Z, Bruniaux J, Ridoux A, da Silva VM, Vantelon D, Boczkowski J, Lanone S. Macrophage autophagy protects mice from cerium oxide nanoparticle-induced lung fibrosis. Part Fibre Toxicol 2021; 18:6. [PMID: 33526046 PMCID: PMC7852145 DOI: 10.1186/s12989-021-00398-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 01/17/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Cerium (Ce) is a rare earth element, rapidly oxidizing to form CeO2, and currently used in numerous commercial applications, especially as nanoparticles (NP). The potential health effects of Ce remain uncertain, but literature indicates the development of rare earth pneumoconiosis accompanied with granuloma formation, interstitial fibrosis and inflammation. The exact underlying mechanisms are not yet completely understood, and we propose that autophagy could be an interesting target to study, particularly in macrophages. Therefore, the objective of our study was to investigate the role of macrophagic autophagy after pulmonary exposure to CeO2 NP in mice. Mice lacking the early autophagy gene Atg5 in their myeloid lineage and their wildtype counterparts were exposed to CeO2 NP by single oropharyngeal administration and sacrificed up to 1 month after. At that time, lung remodeling was thoroughly characterized (inflammatory cells infiltration, expression of fibrotic markers such as αSMA, TGFβ1, total and type I and III collagen deposition), as well as macrophage infiltration (quantification and M1/M2 phenotype). RESULTS Such pulmonary exposure to CeO2 NP induces a progressive and dose-dependent lung fibrosis in the bronchiolar and alveolar walls, together with the activation of autophagy. Blockage of macrophagic autophagy protects from alveolar but not bronchiolar fibrosis, via the modulation of macrophage polarization towards M2 phenotype. CONCLUSION In conclusion, our findings bring novel insight on the role of macrophagic autophagy in lung fibrogenesis, and add to the current awareness of pulmonary macrophages as important players in the disease.
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Affiliation(s)
| | - Zhuyi Lu
- Univ Paris Est Creteil, INSERM, IMRB, F-94010, Creteil, France
| | | | - Audrey Ridoux
- Univ Paris Est Creteil, INSERM, IMRB, F-94010, Creteil, France
| | | | - Delphine Vantelon
- Synchrotron SOLEIL, L'orme des merisiers, St Aubin, BP 48, 31192, Gif sur Yvette, Cedex, France
| | - Jorge Boczkowski
- Univ Paris Est Creteil, INSERM, IMRB, F-94010, Creteil, France
- AP-HP, Hopital Henri Mondor, Service Pneumologie, F-94010, Creteil, France
| | - Sophie Lanone
- Univ Paris Est Creteil, INSERM, IMRB, F-94010, Creteil, France.
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20
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Pulmonary toxicants and fibrosis: innate and adaptive immune mechanisms. Toxicol Appl Pharmacol 2020; 409:115272. [PMID: 33031836 PMCID: PMC9960630 DOI: 10.1016/j.taap.2020.115272] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 02/04/2023]
Abstract
Pulmonary fibrosis is characterized by destruction and remodeling of the lung due to an accumulation of collagen and other extracellular matrix components in the tissue. This results in progressive irreversible decreases in lung capacity, impaired gas exchange and eventually, hypoxemia. A number of inhaled and systemic toxicants including bleomycin, silica, asbestos, nanoparticles, mustard vesicants, nitrofurantoin, amiodarone, and ionizing radiation have been identified. In this article, we review the role of innate and adaptive immune cells and mediators they release in the pathogenesis of fibrotic pathologies induced by pulmonary toxicants. A better understanding of the pathogenic mechanisms underlying fibrogenesis may lead to the development of new therapeutic approaches for patients with these debilitating and largely irreversible chronic diseases.
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21
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Use of Superparamagnetic Iron Oxide Nanoparticles (SPIONs) via Multiple Imaging Modalities and Modifications to Reduce Cytotoxicity: An Educational Review. JOURNAL OF NANOTHERANOSTICS 2020. [DOI: 10.3390/jnt1010008] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The aim of the present educational review on superparamagnetic iron oxide nanoparticles (SPIONs) is to inform and guide young scientists and students about the potential use and challenges associated with SPIONs. The present review discusses the basic concepts of magnetic resonance imaging (MRI), basic construct of SPIONs, cytotoxic challenges associated with SPIONs, shape and sizes of SPIONs, site-specific accumulation of SPIONs, various methodologies applied to reduce cytotoxicity including coatings with various materials, and application of SPIONs in targeted delivery of chemotherapeutics (Doxorubicin), biotherapeutics (DNA, siRNA), and positron emission tomography (PET) imaging applications.
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22
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Pesaraklou A, Matin MM. Cerium oxide nanoparticles and their importance in cell signaling pathways for predicting cellular behavior. Nanomedicine (Lond) 2020; 15:1709-1718. [PMID: 32664817 DOI: 10.2217/nnm-2020-0104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Cerium oxide nanoparticles (CeO2-NPs) have prolifically attracted immense interest of researchers due to their prominent anti-oxidant nature. However, these characteristics are accompanied by some ambiguities in other studies reporting their oxidant and toxic properties. In this regard previous literature has pointed to the importance of the NPs morphology and environmental conditions as well as biomolecules that induce a different response by initiating a cascade of activities. Therefore, due to the fact that signaling proteins are key mediators in cellular responses, the cognizance of the CeO2-NP-targeted signaling pathways could facilitate predicting the cellular behavior and thus more efficient applications of these NPs for clinical purposes. Consequently, a comprehensive review is necessary in this field, to clarify the impacts of CeO2-NPs on various signaling pathways.
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Affiliation(s)
- Atefeh Pesaraklou
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran.,Novel Diagnostics & Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran.,Stem Cells & Regenerative Medicine Research Group, Academic Center for Education, Culture & Research (ACECR), Khorasan Razavi Branch, Mashhad, 9177949367, Iran
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A Stereological Study of the Toxic Effects of Cerium Oxide during Pregnancy on Kidney Tissues in Neonatal NMRI Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9132724. [PMID: 32685101 PMCID: PMC7330649 DOI: 10.1155/2020/9132724] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/27/2020] [Accepted: 06/02/2020] [Indexed: 12/24/2022]
Abstract
Background Both antioxidant and prooxidant activities have been previously reported for cerium oxide (CeO2). The aim of this study was to investigate the effects of CeO2 at different doses on changes in kidney tissues and markers in neonatal mice. Methods We randomly divided 30 pregnant NMRI mice into five groups (n = 6 per group)-a control group and four groups treated with intraperitoneal (i.p.) administration of different doses of CeO2 (10, 25, 80, or 250 mg/kg body weight (bw)) on gestation days (GD) 7 and GD14. At the end of the treatment period, we analyzed the kidney tissues and serum samples. The levels of two serum redox markers, malondialdehyde (MDA) and ferric reducing/antioxidant power (FRAP), were determined. Data were analyzed using one-way ANOVA and Tukey's test, and a P value of <0.05 was considered significant. Results The mean total volumes of the renal corpuscle, glomeruli, and Bowman's capsule membranes significantly increased, and there was a significant decrease in the mean total volume of Bowman's space in the high-dose CeO2 group compared to that in the control group. No statistically significant differences existed in the serum levels of MDA and FRAP in the treated and control groups. Conclusion Our results suggest that high doses of CeO2 impair fetal renal development in pregnant mice, which results in kidney damage. Therefore, CeO2 administration during pregnancy could have dose-dependent adverse effects on the developing kidneys in neonates.
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24
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Saifi MA, Peddakkulappagari CS, Ahmad A, Godugu C. Leveraging the Pathophysiological Alterations of Obstructive Nephropathy to Treat Renal Fibrosis by Cerium Oxide Nanoparticles. ACS Biomater Sci Eng 2020; 6:3563-3573. [PMID: 33463173 DOI: 10.1021/acsbiomaterials.9b01944] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Chronic kidney disease (CKD) has wide prevalence globally that affects a considerable population and has renal fibrosis (RF) as a hallmark feature. RF is characterized by abnormal deposition of extracellular matrix (ECM) in the interstitial space of renal tissue. There are only few studies where nanoparticles (NPs) were used for targeting the kidney mainly due to their size-dependent constraints. Further, most of the studies have been carried out in healthy animals. As the diseased kidney becomes susceptible to accumulation of nanoparticles, we hypothesized that nanoparticles (size ∼10 nm) could reach the kidney and might provide protective effects due to their inherent properties. We investigated the protective effects of cerium oxide nanoparticles (CONPs) with promising antioxidant activity in a CKD model. We, to the best of our knowledge, are first to report that CONPs abrogated RF by inhibiting transforming growth factor-β (TGF-β) signaling and epithelial-mesenchymal transition (EMT) in a fibrotic kidney.
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Affiliation(s)
- Mohd Aslam Saifi
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, Telangana, India
| | - Chandra Sekhar Peddakkulappagari
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, Telangana, India
| | - Altaf Ahmad
- Department of Botany, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, Telangana, India
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25
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Nemati A, Farhadi A, Jalili C, Gholami M. The Effect of Cerium Oxide During Pregnancy on the Development of the Testicular Tissue of Newborn NMRI Mice. Biol Trace Elem Res 2020; 195:196-204. [PMID: 31414325 DOI: 10.1007/s12011-019-01836-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 07/15/2019] [Indexed: 01/29/2023]
Abstract
Cerium(IV) oxide is widely used as a catalyst in all aspects of human life and human beings are exposed to these materials. The purpose of this experimental study was to investigate the effect of CeO2 during pregnancy on alterations in the testis tissue and blood biochemical parameters in newborn mice. Pregnant NMRI mice were divided randomly into five groups (n = 6 for each group) including one control group and 4 treatment groups. Injection of CeO2 solution was administered intraperitoneally at the doses of 10, 25, 80, and 250 mg/kg.bw, respectively, on GD 7 and GD 14. At the end of treatment period, the testicular histological and biochemical parameters of 2- and 6-day-old newborns were analyzed, as well as the biochemical parameters in serum samples of 15-day-old newborns. The number of spermatogonia, Sertoli, and Leydig cells in the testis of the 2-day-old newborn and spermatogonia and Leydig cells in the testis of the 6-day-old newborns in the 250 mg/kg.bw CeO2 treatment group was significantly reduced compared with the control group (P < 0.05). Testis MDA of the 2- and 6-day-old newborns in the treated group receiving 250 mg/kg.bw of CeO2 was significantly higher than the control group (P < 0.001). There was no significant difference between serum MDA and TAC levels between the treated groups with different doses of CeO2 compared with the control group. Therefore, CeO2 given to dams during pregnancy may affect the testicular tissue and blood biochemical parameters in neonates and may be dose-dependent.
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Affiliation(s)
- Afsaneh Nemati
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ali Farhadi
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Cyrus Jalili
- Department of Anatomy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammadreza Gholami
- Department of Anatomy, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- Department of Anatomical Sciences, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Rosário F, Bessa MJ, Brandão F, Costa C, Lopes CB, Estrada AC, Tavares DS, Teixeira JP, Reis AT. Unravelling the Potential Cytotoxic Effects of Metal Oxide Nanoparticles and Metal(Loid) Mixtures on A549 Human Cell Line. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E447. [PMID: 32131449 PMCID: PMC7153484 DOI: 10.3390/nano10030447] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 12/31/2022]
Abstract
Humans are typically exposed to environmental contaminants' mixtures that result in different toxicity than exposure to the individual counterparts. Yet, the toxicology of chemical mixtures has been overlooked. This work aims at assessing and comparing viability and cell cycle of A549 cells after exposure to single and binary mixtures of: titanium dioxide nanoparticles (TiO2NP) 0.75-75 mg/L; cerium oxide nanoparticles (CeO2NP) 0.0.75-10 μg/L; arsenic (As) 0.75-2.5 mg/L; and mercury (Hg) 5-100 mg/L. Viability was assessed through water-soluble tetrazolium (WST-1) and thiazolyl blue tetrazolium bromide (MTT) (24 h exposure) and clonogenic (seven-day exposure) assays. Cell cycle alterations were explored by flow cytometry. Viability was affected in a dose- and time-dependent manner. Prolonged exposure caused inhibition of cell proliferation even at low concentrations. Cell-cycle progression was affected by TiO2NP 75 mg/L, and As 0.75 and 2.5 μg/L, increasing the cell proportion at G0/G1 phase. Combined exposure of TiO2NP or CeO2NP mitigated As adverse effects, increasing the cell surviving factor, but cell cycle alterations were still observed. Only CeO2NP co-exposure reduced Hg toxicity, translated in a decrease of cells in Sub-G1. Toxicity was diminished for both NPs co-exposure compared to its toxicity alone, but a marked toxicity for the highest concentrations was observed for longer exposures. These findings prove that joint toxicity of contaminants must not be disregarded.
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Grants
- PTDC/SAU-PUB/29651/2017 COMPETE 2020, Portugal 2020 and European Union, through FEDER
- SFRH/BPD/122112/2016 (A.T.Reis) FCT - Fundação para a Ciência e a Tecnologia, I.P.
- contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19 (C.B. Lopes and A.C. Estrada) FCT - Fundação para a Ciência e a Tecnologia, I.P.
- SFRH/BD/101060/2014 (F. Brandão) FCT - Fundação para a Ciência e a Tecnologia, I.P.
- SFRH/BD/12046/2016 (M.J. Bessa) FCT - Fundação para a Ciência e a Tecnologia, I.P.
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Affiliation(s)
- Fernanda Rosário
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Maria João Bessa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Fátima Brandão
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
- ICBAS—Institute of Biomedical Sciences Abel Salazar, U. Porto—University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Carla Costa
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Cláudia B. Lopes
- Department of Chemistry and Aveiro Institute of Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.B.L.); (A.C.E.); (D.S.T.)
| | - Ana C. Estrada
- Department of Chemistry and Aveiro Institute of Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.B.L.); (A.C.E.); (D.S.T.)
| | - Daniela S. Tavares
- Department of Chemistry and Aveiro Institute of Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.B.L.); (A.C.E.); (D.S.T.)
- Department of Chemistry and Center of Environmental and Marine Studies (CESAM), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - João Paulo Teixeira
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Ana Teresa Reis
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (F.R.); (M.J.B.); (F.B.); (C.C.); (J.P.T.)
- Department of Environmental Health, Portuguese National Institute of Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
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Cordani M, Strippoli R, Somoza Á. Nanomaterials as Inhibitors of Epithelial Mesenchymal Transition in Cancer Treatment. Cancers (Basel) 2019; 12:E25. [PMID: 31861725 PMCID: PMC7017008 DOI: 10.3390/cancers12010025] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/13/2019] [Indexed: 02/06/2023] Open
Abstract
Abstract: Epithelial-mesenchymal transition (EMT) has emerged as a key regulator of cell invasion and metastasis in cancers. Besides the acquisition of migratory/invasive abilities, the EMT process is tightly connected with the generation of cancer stem cells (CSCs), thus contributing to chemoresistance. However, although EMT represents a relevant therapeutic target for cancer treatment, its application in the clinic is still limited due to various reasons, including tumor-stage heterogeneity, molecular-cellular target specificity, and appropriate drug delivery. Concerning this last point, different nanomaterials may be used to counteract EMT induction, providing novel therapeutic tools against many different cancers. In this review, (1) we discuss the application of various nanomaterials for EMT-based therapies in cancer, (2) we summarize the therapeutic relevance of some of the proposed EMT targets, and (3) we review the potential benefits and weaknesses of each approach.
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Affiliation(s)
- Marco Cordani
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), 28049 Madrid, Spain
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy;
- National Institute for Infectious Diseases “Lazzaro Spallanzani” I.R.C.C.S., 00149 Rome, Italy
| | - Álvaro Somoza
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), 28049 Madrid, Spain
- CNB-CSIC-IMDEA Nanociencia Associated Unit “Unidad de Nanobiotecnología”, 28049 Madrid, Spain
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28
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Roach KA, Stefaniak AB, Roberts JR. Metal nanomaterials: Immune effects and implications of physicochemical properties on sensitization, elicitation, and exacerbation of allergic disease. J Immunotoxicol 2019; 16:87-124. [PMID: 31195861 PMCID: PMC6649684 DOI: 10.1080/1547691x.2019.1605553] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 03/15/2019] [Accepted: 04/05/2019] [Indexed: 12/25/2022] Open
Abstract
The recent surge in incorporation of metallic and metal oxide nanomaterials into consumer products and their corresponding use in occupational settings have raised concerns over the potential for metals to induce size-specific adverse toxicological effects. Although nano-metals have been shown to induce greater lung injury and inflammation than their larger metal counterparts, their size-related effects on the immune system and allergic disease remain largely unknown. This knowledge gap is particularly concerning since metals are historically recognized as common inducers of allergic contact dermatitis, occupational asthma, and allergic adjuvancy. The investigation into the potential for adverse immune effects following exposure to metal nanomaterials is becoming an area of scientific interest since these characteristically lightweight materials are easily aerosolized and inhaled, and their small size may allow for penetration of the skin, which may promote unique size-specific immune effects with implications for allergic disease. Additionally, alterations in physicochemical properties of metals in the nano-scale greatly influence their interactions with components of biological systems, potentially leading to implications for inducing or exacerbating allergic disease. Although some research has been directed toward addressing these concerns, many aspects of metal nanomaterial-induced immune effects remain unclear. Overall, more scientific knowledge exists in regards to the potential for metal nanomaterials to exacerbate allergic disease than to their potential to induce allergic disease. Furthermore, effects of metal nanomaterial exposure on respiratory allergy have been more thoroughly-characterized than their potential influence on dermal allergy. Current knowledge regarding metal nanomaterials and their potential to induce/exacerbate dermal and respiratory allergy are summarized in this review. In addition, an examination of several remaining knowledge gaps and considerations for future studies is provided.
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Affiliation(s)
- Katherine A Roach
- a Allergy and Clinical Immunology Branch (ACIB) , National Institute of Occupational Safety and Health (NIOSH) , Morgantown , WV , USA
- b School of Pharmacy , West Virginia University , Morgantown , WV , USA
| | - Aleksandr B Stefaniak
- c Respiratory Health Division (RHD) , National Institute of Occupational Safety and Health (NIOSH) , Morgantown , WV , USA
| | - Jenny R Roberts
- a Allergy and Clinical Immunology Branch (ACIB) , National Institute of Occupational Safety and Health (NIOSH) , Morgantown , WV , USA
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29
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Yokel RA, Hancock ML, Cherian B, Brooks AJ, Ensor ML, Vekaria HJ, Sullivan PG, Grulke EA. Simulated biological fluid exposure changes nanoceria's surface properties but not its biological response. Eur J Pharm Biopharm 2019; 144:252-265. [PMID: 31563633 DOI: 10.1016/j.ejpb.2019.09.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 08/26/2019] [Accepted: 09/26/2019] [Indexed: 01/16/2023]
Abstract
Nanoscale cerium dioxide (nanoceria) has industrial applications, capitalizing on its catalytic, abrasive, and energy storage properties. It auto-catalytically cycles between Ce3+ and Ce4+, giving it pro-and anti-oxidative properties. The latter mediates beneficial effects in models of diseases that have oxidative stress/inflammation components. Engineered nanoparticles become coated after body fluid exposure, creating a corona, which can greatly influence their fate and effects. Very little has been reported about nanoceria surface changes and biological effects after pulmonary or gastrointestinal fluid exposure. The study objective was to address the hypothesis that simulated biological fluid (SBF) exposure changes nanoceria's surface properties and biological activity. This was investigated by measuring the physicochemical properties of nanoceria with a citric acid coating (size; morphology; crystal structure; surface elemental composition, charge, and functional groups; and weight) before and after exposure to simulated lung, gastric, and intestinal fluids. SBF-exposed nanoceria biological effect was assessed as A549 or Caco-2 cell resazurin metabolism and mitochondrial oxygen consumption rate. SBF exposure resulted in loss or overcoating of nanoceria's surface citrate, greater nanoceria agglomeration, deposition of some SBF components on nanoceria's surface, and small changes in its zeta potential. The engineered nanoceria and SBF-exposed nanoceria produced no statistically significant changes in cell viability or cellular oxygen consumption rates.
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Affiliation(s)
- Robert A Yokel
- Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40536-0596, United States.
| | - Matthew L Hancock
- Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States.
| | - Benjamin Cherian
- Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States.
| | - Alexandra J Brooks
- Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States.
| | - Marsha L Ensor
- Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40536-0596, United States.
| | - Hemendra J Vekaria
- Spinal Cord & Brain Injury Research Center, University of Kentucky, Lexington, KY 40536-0509, United States; Department of Neuroscience, University of Kentucky, Lexington, KY 40536-0509, United States.
| | - Patrick G Sullivan
- Spinal Cord & Brain Injury Research Center, University of Kentucky, Lexington, KY 40536-0509, United States; Department of Neuroscience, University of Kentucky, Lexington, KY 40536-0509, United States.
| | - Eric A Grulke
- Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States.
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30
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Chen B, Lum JTS, Huang Y, Hu B, Leung KSY. Integration of sub-organ quantitative imaging LA-ICP-MS and fractionation reveals differences in translocation and transformation of CeO 2 and Ce 3+ in mice. Anal Chim Acta 2019; 1082:18-29. [PMID: 31472707 DOI: 10.1016/j.aca.2019.07.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/14/2019] [Accepted: 07/21/2019] [Indexed: 11/24/2022]
Abstract
Information on the risk of exposure to cerium oxide (CeO2) nanoparticles (NPs) is limited. To assess risk, we must know where and how such NPs are distributed to the body after exposure, both short- and long-term. In this work, an integrated approach of quantitative LA-ICP-MS bioimaging and fractionation was employed to study the translocation and transformation of CeO2 and Ce3+ in mouse spleen and liver. The complementary information retrieved by the two techniques above on the accumulation of Ce and dissolution/aggregation were found consistent. In brief, a detailed fine scanning of a region of interest in the organ was performed after fast-screening at low spatial resolution. In the spleen, after short-term high-dose exposure, CeO2 NPs was found mainly in the marginal zone and caused an up-regulation of Zn in the white pulp. After long-term low-dose exposure, CeO2 was found in the marginal zone and white pulp. In the liver, CeO2 NPs were mainly distributed in the Kupffer cells and lobule periphery. The high spatial resolution LA maps of H&E-stained liver sections allowed imaging close to cell level; this enabled an estimation of Ce content in Kupffer cells. Furthermore, fractionation by ultrafiltration was also employed to differentiate the ionic and NP species in the organs. This fractionation showed aggregation of Ce ions in spleen, supporting the LA-ICP-MS results. Transmission electron microscopy revealed that long-term CeO2 exposure triggered an immune response to infection in the spleen and confirmed the differential deposition of Ce in the marginal zone. The integrated analyses based on ICP-MS together with histology and TEM investigation suggests that long-term low doses of CeO2 NPs may cause toxicity in the liver and impair functions of the immune system.
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Affiliation(s)
- Beibei Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China; Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Judy Tsz-Shan Lum
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Yingyan Huang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Bin Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China.
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31
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Liu G, Zhai H, Zhang T, Li S, Li N, Chen J, Gu M, Qin Z, Liu X. New therapeutic strategies for IPF: Based on the "phagocytosis-secretion-immunization" network regulation mechanism of pulmonary macrophages. Biomed Pharmacother 2019; 118:109230. [PMID: 31351434 DOI: 10.1016/j.biopha.2019.109230] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/19/2019] [Accepted: 07/15/2019] [Indexed: 12/15/2022] Open
Abstract
Pulmonary fibrosis is a chronic and progressive interstitial lung disease of known and unknown etiology. Over the past decades, macrophages have been recognized to play a significant role in IPF pathogenesis. According to their anatomical loci, macrophages can be divided to alveolar macrophages (AMs) subtypes and interstitial macrophages subtypes (IMs) with different responsibility in the damage defense response. Depending on diverse chemokines and cytokines in local microenvironments, macrophages can be induced and polarized to either classically activated (M1) or alternatively activated (M2) phenotypes in different stages of immunity. Therefore, we hypothesize that there is a "phagocytosis-secretion-immunization" network regulation of pulmonary macrophages related to a number of chemokines and cytokines. In this paper, we summarize and discuss the role of chemokines and cytokines involved in the "phagocytosis-secretion-immunization" network regulation mechanism of pulmonary macrophages, pointing toward novel therapeutic approaches based on the network target regulation in the field. Therapeutic strategies focused on modifying the chemokines, cytokines and the network are promising for the pharmacotherapy of IPF. Some Traditional Chinese medicines may have more superiorities in delaying the progression of pulmonary fibrosis for their multi-target activities of this network regulation.
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Affiliation(s)
- Guoxiu Liu
- Beijing University of Chinese Medicine, China
| | | | | | - Siyu Li
- Beijing University of Chinese Medicine, China
| | - Ningning Li
- Beijing University of Chinese Medicine, China
| | - Jiajia Chen
- Beijing University of Chinese Medicine, China
| | - Min Gu
- Beijing University of Chinese Medicine, China
| | - Zinan Qin
- Beijing University of Chinese Medicine, China
| | - Xin Liu
- Beijing University of Chinese Medicine, China.
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32
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Pagano G, Thomas PJ, Di Nunzio A, Trifuoggi M. Human exposures to rare earth elements: Present knowledge and research prospects. ENVIRONMENTAL RESEARCH 2019; 171:493-500. [PMID: 30743241 DOI: 10.1016/j.envres.2019.02.004] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 05/23/2023]
Abstract
The extensive use of rare earth elements (REEs) in a number of technologies is expected to impact on human health, including occupational and environmental REE exposures. A body of experimental evidence on REE-associated toxicity has been accumulated in recent decades, thus providing extensive background information on the adverse effects of REE exposures. Unlike experimental studies, the consequences of REE exposures to human health have been subjected to relatively fewer investigations. Geographical studies have been conducted on residents in REE mining districts, reporting on REE bioaccumulation, and associations between REE residential exposures and adverse health effects. A recent line of studies has associated tobacco smoking and indoor smoke with increased levels of some REEs in exposed residents. A body of literature has been focused on occupational REE exposures, with the observation of respiratory tract damage. The occupations related to REE mining and processing have shown REE bioaccumulation in scalp hair, excess REE urine levels, and defective gene expression. As for other REE occupational exposures, mention should be made of: a) jobs exposing to REE aerosol, such as movie operator; b) e-waste processing and, c) diesel engine repair and maintenance, with exposures to exhaust microparticulate (containing nanoCeO2 as a catalytic additive). Diesel exhaust microparticulate has been studied in animal models, leading to evidence of several pathological effects in animals exposed by respiratory or systemic routes. A working hypothesis for REE occupational exposures is raised on REE-based supermagnet production and manufacture, by reviewing experimental studies that suggest several pathological effects of static magnetic fields, and warrant further investigations.
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Affiliation(s)
- Giovanni Pagano
- Federico II Naples University, Department of Chemical Sciences, via Cinthia, I-80126 Naples, Italy.
| | - Philippe J Thomas
- Environment and Climate Change Canada, Science & Technology Branch, National Wildlife Research Center - Carleton University, Ottawa, Ontario, Canada K1A 0H3
| | - Aldo Di Nunzio
- Federico II Naples University, Department of Chemical Sciences, via Cinthia, I-80126 Naples, Italy
| | - Marco Trifuoggi
- Federico II Naples University, Department of Chemical Sciences, via Cinthia, I-80126 Naples, Italy
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33
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Guo C, Robertson S, Weber RJM, Buckley A, Warren J, Hodgson A, Rappoport JZ, Ignatyev K, Meldrum K, Römer I, Macchiarulo S, Chipman JK, Marczylo T, Leonard MO, Gant TW, Viant MR, Smith R. Pulmonary toxicity of inhaled nano-sized cerium oxide aerosols in Sprague-Dawley rats. Nanotoxicology 2019; 13:733-750. [PMID: 30704321 PMCID: PMC6816500 DOI: 10.1080/17435390.2018.1554751] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cerium oxide nanoparticles (CeO2NPs), used in some diesel fuel additives to improve fuel combustion efficiency and exhaust filter operation, have been detected in ambient air and concerns have been raised about their potential human health impact. The majority of CeO2NP inhalation studies undertaken to date have used aerosol particles of larger sizes than the evidence suggests are emitted from vehicles using such fuel additives. Hence, the objective of this study was to investigate the effects of inhaled CeO2NP aerosols of a more environmentally relevant size, utilizing a combination of methods, including untargeted multi-omics to enable the broadest possible survey of molecular responses and synchrotron X-ray spectroscopy to investigate cerium speciation. Male Sprague-Dawley rats were exposed by nose-only inhalation to aerosolized CeO2NPs (mass concentration 1.8 mg/m3, aerosol count median diameter 40 nm) for 3 h/d for 4 d/week, for 1 or 2 weeks and sacrificed at 3 and 7 d post-exposure. Markers of inflammation changed significantly in a dose- and time-dependent manner, which, combined with results from lung histopathology and gene expression analyses suggest an inflammatory response greater than that seen in studies using micron-sized ceria aerosols. Lipidomics of lung tissue revealed changes to minor lipid species, implying specific rather than general cellular effects. Cerium speciation analysis indicated a change in Ce3+/Ce4+ ratio within lung tissue. Collectively, these results in conjunction with earlier studies emphasize the importance of aerosol particle size on toxicity determination. Furthermore, the limited effect resolution within 7 d suggested the possibility of longer-term effects.
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Affiliation(s)
- Chang Guo
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Sarah Robertson
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Ralf J M Weber
- b School of Biosciences , University of Birmingham , Birmingham, B15 2TT , UK
| | - Alison Buckley
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - James Warren
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Alan Hodgson
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Joshua Z Rappoport
- c Department of Cell and Molecular Biology , Northwestern University , Chicago , IL , USA
| | - Konstantin Ignatyev
- d Diamond Light Source Ltd , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0DE , UK
| | - Kirsty Meldrum
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Isabella Römer
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Sameirah Macchiarulo
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - James Kevin Chipman
- b School of Biosciences , University of Birmingham , Birmingham, B15 2TT , UK
| | - Tim Marczylo
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Martin O Leonard
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Timothy W Gant
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
| | - Mark R Viant
- b School of Biosciences , University of Birmingham , Birmingham, B15 2TT , UK
| | - Rachel Smith
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Harwell Science and Innovation Campus , Didcot, Oxfordshire , OX11 0RQ , UK
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Catalán J, Fascineli ML, Politakos N, Hartikainen M, Garcia MP, Cáceres-Vélez PR, Moreno C, Silva SWD, Morais PC, Norppa H, Moya SE, Azevedo RB. In vivo toxicological evaluation of polymer brush engineered nanoceria: impact of brush charge. Nanotoxicology 2018; 13:305-325. [DOI: 10.1080/17435390.2018.1543469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Julia Catalán
- aWork Environment, Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
- bDepartment of Anatomy Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | - Maria Luiza Fascineli
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
| | - Nikolaos Politakos
- dSoft Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Spain
| | - Mira Hartikainen
- aWork Environment, Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Mônica Pereira Garcia
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
| | - Paolin Rocio Cáceres-Vélez
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
- dSoft Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Spain
| | - Carlos Moreno
- bDepartment of Anatomy Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | | | - Paulo César Morais
- eInstitute of Physics, University of Brasília, Brasília DF, Brazil
- fSchool of Chemistry and Chemical Engineering, Anhui University, Hefei, China
| | - Hannu Norppa
- aWork Environment, Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Sergio E. Moya
- dSoft Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Spain
| | - Ricardo Bentes Azevedo
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
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Kumari P, Saifi MA, Khurana A, Godugu C. Cardioprotective effects of nanoceria in a murine model of cardiac remodeling. J Trace Elem Med Biol 2018; 50:198-208. [PMID: 30262280 DOI: 10.1016/j.jtemb.2018.07.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 12/11/2022]
Abstract
Isoproterenol (ISO), a synthetic β1 adrenergic agonist is a well-known agent to be associated with severe cardiotoxicity manifested as marked myocardial necrosis and fibrosis. Oxidative stress plays a crucial role in mediating ISO induced cardiotoxicity. In present study, we have investigated the possible protective effect of nanoceria (NC) in ISO induced cardiac injury. We have given long duration exposure (a total of 10 days) of low dose ISO (20 mg/kg/day) to investigate the protective effects of NC in chronic cardiac injury model. ISO (20 mg/kg/day for 10 days) produced cardiac injury as evident by increased plasma LDH and CK-MB, AST, ALT, cardiac hypertrophy, severe myocardial fibrosis (MF) and significantly higher levels of cytokines, IL-6, TGF-β and TNF-α. Interestingly, the treatment with NC (0.2 and 2 mg/kg) abrogated cardiotoxicity symptoms and provided protection from ISO induced cardiac injury. The results from present study demonstrated strong evidences of cardioprotective effects of NC as shown by reduction in the levels of LDH (p < 0.05 at 2 mg/kg) and CK-MB (p < 0.05 at 2 mg/kg). In addition, NC reduced oxidative stress parameters MDA (p < 0.05 at 2 mg/kg) and enhanced GSH levels which is physiological antioxidant (p < 0.01 at both doses). Further, NC exhibited promising anti-inflammatory activity and curbed the levels of cytokines (p < 0.05 at 0.2 mg/kg and p < 0.001 for IL-1β and p < 0.001 at both doses for IL-6). In addition, NC also reduced the levels of pro-fibrotic cytokine, TGF-β (p < 0.05 at 2 mg/kg) and helped in reduction of collagen deposition in heart thereby, preventing the myocardial remodeling. Our results strongly suggested that NC might be of potential use as a cardioprotective agent.
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Affiliation(s)
- Preeti Kumari
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Mohd Aslam Saifi
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Amit Khurana
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India.
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Akhatova F, Danilushkina A, Kuku G, Saricam M, Culha M, Fakhrullin R. Simultaneous Intracellular Detection of Plasmonic and Non-Plasmonic Nanoparticles Using Dark-Field Hyperspectral Microscopy. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180198] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Farida Akhatova
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation
| | - Anna Danilushkina
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation
| | - Gamze Kuku
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Melike Saricam
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Mustafa Culha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Rawil Fakhrullin
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation
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37
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Wang Y, Fu W, Shen Y, Badireddy AR, Zhang W, Huang H. Hyperspectral Imaging Microscopy of Acetaminophen Adsorbed on Multiwalled Carbon Nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13210-13218. [PMID: 30350698 DOI: 10.1021/acs.langmuir.8b02939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, enhanced dark-field hyperspectral imaging (ED-HSI) was employed to directly observe acetaminophen (AAP), a model pharmaceutical and personal care product (PPCP), adsorbed on multiwalled carbon nanotubes with large diameters (L-MWCNT) and small diameters (S-MWCNT) under equilibrium conditions. The ED-HSI results revealed that (1) AAP molecules primarily adsorbed onto the external surfaces, rather than the internal surfaces of L- and S-MWCNT aggregates, (2) or on sidewall of the dispersed tubes, but not at their end caps. Besides, ED-HSI images showed that the surface coverage ratio of AAP/S-MWCNT is smaller than that of AAP/L-MWCNT (1.1 vs 3.4), indicating that there are more available adsorption sites on S-MWCNT than L-MWCNT when the adsorption reached equilibrium. This finding was consistent with the adsorption capacities of S-MWCNT and L-MWCNT (252.7 vs 54.6 mg g-1). Direct visualization of sorption sites for PPCP molecules provides new insights into the heterogeneous structures and surface properties of MWCNT and helps elucidate the adsorption mechanisms that are fundamental to the design of functional adsorbents for PPCP contaminants.
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Affiliation(s)
- Yifei Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering , Beijing University of Technology , Beijing 100124 , China
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment , Beijing Normal University , No. 19, Xinjiekouwai Street , Beijing 100875 , China
| | - Wanyi Fu
- Department of Civil and Environmental Engineering , New Jersey Institute of Technology , Newark , New Jersey 07029 , United States
| | - Yuxiang Shen
- Department of Civil and Environmental Engineering , University of Vermont , Burlington , Vermont 05405 , United States
| | - Appala Raju Badireddy
- Department of Civil and Environmental Engineering , University of Vermont , Burlington , Vermont 05405 , United States
| | - Wen Zhang
- Department of Civil and Environmental Engineering , New Jersey Institute of Technology , Newark , New Jersey 07029 , United States
| | - Haiou Huang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment , Beijing Normal University , No. 19, Xinjiekouwai Street , Beijing 100875 , China
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Hong F, Ji L, Zhou Y, Wang L. Retracted: Pulmonary fibrosis of mice and its molecular mechanism following chronic inhaled exposure to TiO 2 nanoparticles. ENVIRONMENTAL TOXICOLOGY 2018; 33:E1. [PMID: 28945330 DOI: 10.1002/tox.22493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/06/2017] [Accepted: 09/11/2017] [Indexed: 06/07/2023]
Abstract
Nanoparticulate titanium dioxide (nano-TiO2 ) has been widely used in industry, medicine and daily life. However, assessment of nano-TiO2 toxicity on health is an important occupational safety issue. Numerous studies have demonstrated that nano-TiO2 can induced sustained pulmonary inflammation, but whether chronic exposure to nano-TiO2 results in pulmonary fibrosis is unclear. In this study, therefore, nano-TiO2 was administered to the male mice by nasal administration for six consecutive months, the inflammatory and/or fibrogenic responses induced by nano-TiO2 were investigated. The results showed that chronic inhaled nano-TiO2 induced pulmonary inflammation and firosis, increased expression of inflammatory cytokines and fibrotic cytokines including nuclear factor-κB, interleukin-1β, tumor necrosis factor-α, monocyte chemotactic protein 1, macrophage inflammatory protein-2, intercellular adhesion molecule 1, vascular cell adhesion molecule 1, transform growth factor -β1, osteopontin, matrix metalloproteinase-1, -2, -3, and -9, tissue inhibitors of metalloproteinase-1, collagen, platelet derived growth factor, and connective tissue growth factor in mouse lung. Taken together, nano-TiO2 -induced pulmonary inflammation and fibrosis are closely associated with increased expression of inflammatory and/or fibrotic cytokines, an imbalanced production of MMPs and TIMP-1 that favors fibrosis in mice, implying that nano-TiO2 may lead to potential health effects.
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Affiliation(s)
- Fashui Hong
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huaian, 223300, China
- Laboratory for Food Safety and Nutritional Function, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Li Ji
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huaian, 223300, China
- Laboratory for Food Safety and Nutritional Function, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Yingjun Zhou
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huaian, 223300, China
- Laboratory for Food Safety and Nutritional Function, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
| | - Ling Wang
- Library of Soochow University, Suzhou, China, Suzhou, 215123, China
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Tsai SM, Duran-Robles E, Goshia T, Mesina M, Garcia C, Young J, Sibal A, Chiu MH, Chin WC. CeO 2 nanoparticles attenuate airway mucus secretion induced by TiO 2 nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 631-632:262-269. [PMID: 29525705 PMCID: PMC5930066 DOI: 10.1016/j.scitotenv.2018.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/28/2018] [Accepted: 03/01/2018] [Indexed: 05/06/2023]
Abstract
Nanotoxicity studies associated with various nanoparticles (NPs) have attracted intense research interest due to the broader applications of nanoparticles in our daily lives. The exposure of nanoparticles can lead to hypersecretion and accumulation of airway mucus which are closely associated with many respiratory diseases. Titanium dioxide (TiO2), one of the PM10 components, is a major NP that is widely utilized in many commercial products. Our previous study established the connection between induced airway mucus secretion and TiO2 NPs. However, the countermeasure to reduce the harmful effects of TiO2 NPs, especially airway mucus secretion, remains unexplored. One of the potential candidates to reduce airway mucus secretion is cerium oxide (CeO2) NPs. It has been reported that CeO2 NPs can protect cells by diminishing ROS and inflammatory responses. Herein, our study shows that CeO2 NPs are able to reduce cytosolic Ca2+ changes and mitochondrial damage caused by TiO2 NPs. Our results provide the evidence that hypersecretion of mucus and apoptosis progression induced by TiO2 NPs can be attenuated by CeO2 NPs. This study highlights the potential capacity of CeO2 NPs as a supplementary material for TiO2 NPs applications in the future.
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Affiliation(s)
- Shih-Ming Tsai
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Edith Duran-Robles
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA
| | - Tyler Goshia
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Maria Mesina
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Carlos Garcia
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Julia Young
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Angelo Sibal
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Meng-Hsuen Chiu
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
| | - Wei-Chun Chin
- Bioengineering Program, School of Engineering, University of California at Merced, Merced, CA 95343, USA.
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Khaliullin TO, Kisin ER, Murray AR, Yanamala N, Shurin MR, Gutkin DW, Fatkhutdinova LM, Kagan VE, Shvedova AA. Mediation of the single-walled carbon nanotubes induced pulmonary fibrogenic response by osteopontin and TGF-β1. Exp Lung Res 2018; 43:311-326. [PMID: 29140132 DOI: 10.1080/01902148.2017.1377783] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE OF THE STUDY A number of in vivo studies have shown that pulmonary exposure to carbon nanotubes (CNTs) may lead to an acute local inflammatory response, pulmonary fibrosis, and granulomatous lesions. Among the factors that play direct roles in initiation and progression of fibrotic processes are epithelial-mesenchymal transition and myofibroblasts recruitment/differentiation, both mediated by transforming growth factor-β1 (TGF-β1). Yet, other contributors to TGF-β1 associated signaling, such as osteopontin (OPN) has not been fully investigated. MATERIALS AND METHODS OPN-knockout female mice (OPN-KO) along with their wild-type (WT) counterparts were exposed to single-walled carbon nanotubes (SWCNT) (40 µg/mouse) via pharyngeal aspiration and fibrotic response was assessed 1, 7, and 28 days post-exposure. Simultaneously, RAW 264.7 and MLE-15 cells were treated with SWCNT (24 hours, 6 µg/cm2 to 48 µg/cm2) or bleomycin (0.1 µg/ml) in the presence of OPN-blocking antibody or isotype control, and TGF-β1 was measured in supernatants. RESULTS AND CONCLUSIONS Diminished lactate dehydrogenase activity at all time points, along with less pronounced neutrophil influx 24 h post-exposure, were measured in broncho-alveolar lavage (BAL) of OPN-KO mice compared to WT. Pro-inflammatory cytokine release (IL-6, TNF-α, MCP-1) was reduced. A significant two-fold increase of TGF-β1 was found in BAL of WT mice at 7 days, while TGF-β1 levels in OPN-KO animals remained unaltered. Histological examination revealed marked decrease in granuloma formation and less collagen deposition in the lungs of OPN-KO mice compared to WT. RAW 264.7 but not MLE-15 cells exposed to SWCNT and bleomycin had significantly less TGF-β1 released in the presence of OPN-blocking antibody. We believe that OPN is important in initiating the cellular mechanisms that produce an overall pathological response to SWCNT and it may act upstream of TGF-β1. Further investigation to understand the mechanistic details of such interactions is critical to predict outcomes of pulmonary exposure to CNT.
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Affiliation(s)
- Timur O Khaliullin
- a Department of Physiology & Pharmacology , West Virginia University , Morgantown , WV.,b Exposure Assessment Branch , NIOSH/CDC , Morgantown , WV
| | - Elena R Kisin
- b Exposure Assessment Branch , NIOSH/CDC , Morgantown , WV
| | | | | | - Michael R Shurin
- c Department Pathology , University of Pittsburgh , Pittsburgh , PA
| | - Dmitriy W Gutkin
- c Department Pathology , University of Pittsburgh , Pittsburgh , PA
| | - Liliya M Fatkhutdinova
- d Department of Hygiene and Occupational Medicine , Kazan State Medical University , Kazan , Russia
| | - Valerian E Kagan
- e Department of Pathology , University of Pittsburgh , Pittsburgh , PA
| | - Anna A Shvedova
- a Department of Physiology & Pharmacology , West Virginia University , Morgantown , WV.,b Exposure Assessment Branch , NIOSH/CDC , Morgantown , WV
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41
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Meldrum K, Robertson SB, Römer I, Marczylo T, Dean LSN, Rogers A, Gant TW, Smith R, Tetley TD, Leonard MO. Cerium dioxide nanoparticles exacerbate house dust mite induced type II airway inflammation. Part Fibre Toxicol 2018; 15:24. [PMID: 29792201 PMCID: PMC5966909 DOI: 10.1186/s12989-018-0261-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/15/2018] [Indexed: 12/11/2022] Open
Abstract
Background Nanomaterial inhalation represents a potential hazard for respiratory conditions such as asthma. Cerium dioxide nanoparticles (CeO2NPs) have the ability to modify disease outcome but have not been investigated for their effect on models of asthma and inflammatory lung disease. The aim of this study was to examine the impact of CeO2NPs in a house dust mite (HDM) induced murine model of asthma. Results Repeated intranasal instillation of CeO2NPs in the presence of HDM caused the induction of a type II inflammatory response, characterised by increased bronchoalveolar lavage eosinophils, mast cells, total plasma IgE and goblet cell metaplasia. This was accompanied by increases in IL-4, CCL11 and MCPT1 gene expression together with increases in the mucin and inflammatory regulators CLCA1 and SLC26A4. CLCA1 and SLC26A4 were also induced by CeO2NPs + HDM co-exposure in air liquid interface cultures of human primary bronchial epithelial cells. HDM induced airway hyperresponsiveness and airway remodelling in mice were not altered with CeO2NPs co-exposure. Repeated HMD instillations followed by a single exposure to CeO2NPs failed to produce changes in type II inflammatory endpoints but did result in alterations in the neutrophil marker CD177. Treatment of mice with CeO2NPs in the absence of HDM did not have any significant effects. RNA-SEQ was used to explore early effects 24 h after single treatment exposures. Changes in SAA3 expression paralleled increased neutrophil BAL levels, while no changes in eosinophil or lymphocyte levels were observed. HDM resulted in a strong induction of type I interferon and IRF3 dependent gene expression, which was inhibited with CeO2NPs co-exposure. Changes in the expression of genes including CCL20, CXCL10, NLRC5, IRF7 and CLEC10A suggest regulation of dendritic cells, macrophage functionality and IRF3 modulation as key early events in how CeO2NPs may guide pulmonary responses to HDM towards type II inflammation. Conclusions CeO2NPs were observed to modulate the murine pulmonary response to house dust mite allergen exposure towards a type II inflammatory environment. As this type of response is present within asthmatic endotypes this finding may have implications for how occupational or incidental exposure to CeO2NPs should be considered for those susceptible to disease. Electronic supplementary material The online version of this article (10.1186/s12989-018-0261-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kirsty Meldrum
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Sarah B Robertson
- Environmental Hazards and Emergencies Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Isabella Römer
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Tim Marczylo
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Lareb S N Dean
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Andrew Rogers
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK
| | - Timothy W Gant
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Rachel Smith
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Terry D Tetley
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Martin O Leonard
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK. .,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK.
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Baldim V, Bedioui F, Mignet N, Margaill I, Berret JF. The enzyme-like catalytic activity of cerium oxide nanoparticles and its dependency on Ce 3+ surface area concentration. NANOSCALE 2018; 10:6971-6980. [PMID: 29610821 DOI: 10.1039/c8nr00325d] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cerium oxide nanoparticles are known to catalyze the decomposition of reactive oxygen species such as the superoxide radical and hydrogen peroxide. Herein, we examine the superoxide dismutase (SOD) and catalase (CAT) mimetic catalytic activities of nanoceria and demonstrate the existence of generic behaviors. For particles of sizes 4.5, 7.8, 23 and 28 nm, the SOD and CAT catalytic activities exhibit the characteristic shape of a Langmuir isotherm as a function of cerium concentration. The results show that the catalytic effects are enhanced for smaller particles and for the particles with the largest Ce3+ fraction. The SOD-like activity obtained from the different samples is found to superimpose on a single master curve using the Ce3+ surface area concentration as a new variable, indicating the existence of particle independent redox mechanisms. For the CAT assays, the adsorption of H2O2 molecules at the particle surface modulates the efficacy of the decomposition process and must be taken into account. We design an amperometry-based experiment to evaluate the H2O2 adsorption at nanoceria surfaces, leading to the renormalization of the particle specific area. Depending on the particle type the amount of adsorbed H2O2 molecules varies from 2 to 20 nm-2. The proposed scalings are predictive and allow the determination of the SOD and CAT catalytic properties of cerium oxide solely from physicochemical features.
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Affiliation(s)
- V Baldim
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
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Falchi L, Galleri G, Dore GM, Zedda MT, Pau S, Bogliolo L, Ariu F, Pinna A, Nieddu S, Innocenzi P, Ledda S. Effect of exposure to CeO 2 nanoparticles on ram spermatozoa during storage at 4 °C for 96 hours. Reprod Biol Endocrinol 2018; 16:19. [PMID: 29510737 PMCID: PMC5840694 DOI: 10.1186/s12958-018-0339-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/02/2018] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Cerium oxide nanoparticles (CeO2 NPs) are able to store and release oxygen, conferring them scavenger activity against oxidative stress. However, their effects in reproductive systems are not yet well understood. The aim of the study was to investigate the effects of exposure of refrigerated ram semen to CeO2 NPs for 96 h on the main structural and kinematic parameters of spermatozoa. METHODS The ejaculates of 5 Sarda rams were collected, pooled and diluted in a soybean lecithin extender. Samples were exposed to increasing doses of CeO2 NPs (0, 44 and 220 μg/mL) and stored at 4 °C for 96 h. Analyses of kinematic parameters (computer assisted sperm analysis, CASA), integrity of membranes (PI/PSA staining), ROS production (H2DCFDA staining) and DNA damage (sperm chromatin structure assay with acridine orange, SCSA) were performed every 24 h (0, 24, 48, 72 and 96 h of incubation). The experiment was carried out in 6 replicates. Data were analysed by repeated measures ANOVA with Bonferroni's as post hoc test. When the assumption of normality was not met (ROS), non-parametric Kruskal-Wallis rank test was carried out. RESULTS Exposure of ram spermatozoa to increasing doses of CeO2 NPs had a beneficial effect on the main motility parameters from 48 h of incubation onward. Velocity of sperm cells was enhanced in the groups exposed to CeO2 NPs compared to the control. Incubation with NPs had beneficial effects on the integrity of plasma membranes of spermatozoa, with higher percentage of damaged cells in the control group compared to the exposed ones. Production of ROS was not affected by exposure to NPs and its levels rose at 96 h of incubation. The integrity of DNA remained stable throughout the 96 h of storage regardless of co-incubation with NPs. CONCLUSIONS We reported beneficial effects of CeO2 NPs on kinematic and morphologic parameters of ram semen, such as motility and membrane integrity following 96 h of exposure. Furthermore, we also proved no genotoxic effects of CeO2 NPs. These effects could not be related to an antioxidant activity of CeO2 NPs, since ROS levels in exposed cells were similar to those of unexposed ones.
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Affiliation(s)
- Laura Falchi
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Grazia Galleri
- Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi di Sassari, Sassari, Italy
| | - Gian Mario Dore
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Maria Teresa Zedda
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Salvatore Pau
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Luisa Bogliolo
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Federica Ariu
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Alessandra Pinna
- Department of Materials, Imperial College London, South Kensington Campus, London, UK
| | - Stefano Nieddu
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Plinio Innocenzi
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Sassari, Italy
| | - Sergio Ledda
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
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Schwotzer D, Niehof M, Schaudien D, Kock H, Hansen T, Dasenbrock C, Creutzenberg O. Cerium oxide and barium sulfate nanoparticle inhalation affects gene expression in alveolar epithelial cells type II. J Nanobiotechnology 2018; 16:16. [PMID: 29463257 PMCID: PMC5819288 DOI: 10.1186/s12951-018-0343-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/13/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Understanding the molecular mechanisms of nanomaterial interacting with cellular systems is important for appropriate risk assessment. The identification of early biomarkers for potential (sub-)chronic effects of nanoparticles provides a promising approach towards cost-intensive and animal consuming long-term studies. As part of a 90-day inhalation toxicity study with CeO2 NM-212 and BaSO4 NM-220 the present investigations on gene expression and immunohistochemistry should reveal details on underlying mechanisms of pulmonary effects. The role of alveolar epithelial cells type II (AEII cells) is focused since its contribution to defense against inhaled particles and potentially resulting adverse effects is assumed. Low dose levels should help to specify particle-related events, including inflammation and oxidative stress. RESULTS Rats were exposed to clean air, 0.1, 0.3, 1.0, and 3.0 mg/m3 CeO2 NM-212 or 50.0 mg/m3 BaSO4 NM-220 and the expression of 391 genes was analyzed in AEII cells after one, 28 and 90 days exposure. A total number of 34 genes was regulated, most of them related to inflammatory mediators. Marked changes in gene expression were measured for Ccl2, Ccl7, Ccl17, Ccl22, Ccl3, Ccl4, Il-1α, Il-1ß, and Il-1rn (inflammation), Lpo and Noxo1 (oxidative stress), and Mmp12 (inflammation/lung cancer). Genes related to genotoxicity and apoptosis did not display marked regulation. Although gene expression was less affected by BaSO4 compared to CeO2 the gene pattern showed great overlap. Gene expression was further analyzed in liver and kidney tissue showing inflammatory responses in both organs and marked downregulation of oxidative stress related genes in the kidney. Increases in the amount of Ce were measured in liver but not in kidney tissue. Investigation of selected genes on protein level revealed increased Ccl2 in bronchoalveolar lavage of exposed animals and increased Lpo and Mmp12 in the alveolar epithelia. CONCLUSION AEII cells contribute to CeO2 nanoparticle caused inflammatory and oxidative stress reactions in the respiratory tract by the release of related mediators. Effects of BaSO4 exposure are low. However, overlap between both substances were detected and support identification of potential early biomarkers for nanoparticle effects on the respiratory system. Signs for long-term effects need to be further evaluated by comparison to a respective exposure setting.
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Affiliation(s)
- Daniela Schwotzer
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany.
| | - Monika Niehof
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Heiko Kock
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Tanja Hansen
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Clemens Dasenbrock
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Otto Creutzenberg
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
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Ko JW, Shin NR, Park JW, Park SH, Lee IC, Kim JS, Kim JC, Ahn KS, Shin IS. Copper oxide nanoparticles induce collagen deposition via TGF-β1/Smad3 signaling in human airway epithelial cells. Nanotoxicology 2018; 12:239-250. [PMID: 29383958 DOI: 10.1080/17435390.2018.1432778] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Use and application of nanoparticles has increased in recent years. Copper oxide nanoparticles (CuONPs) are one of the most common types of nanoparticles, and they are mainly used as catalysts and preservatives. However, limited toxicity data are available on the toxicity of CuONPs to the respiratory system. We investigated fibrotic responses induced by CuONPs in the respiratory tract and elucidated its underlying mechanism of action in vivo and in vitro experiments. In the mouse model, CuONPs exposure markedly increased transforming growth factor-β1 (TGF-β1) and collagen I expression and Smad3 phosphorylation, combined with elevation of inflammatory mediators including interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α). These alterations were also observed in histological analysis of lung tissue. CuONPs markedly increased inflammatory responses and collagen deposition, accompanied by the elevation of TGF-β1 and collagen I expression in lung tissue. In addition, CuONPs-treated H292 cells showed significantly increased mRNA and protein production of TGF-β1, collagen I, IL-6, and TNF-α; this response was markedly decreased by treatment of a TGF-β1 inhibitor (SB-431542). Taken together, CuONPs induced fibrotic responses in the respiratory tract, closely related to TGF-β1/Smad3 signaling. Therefore, our results raise the necessity of further investigation for the present state of its risk by providing useful information of the toxicity of CuONPs.
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Affiliation(s)
- Je-Won Ko
- a College of Veterinary Medicine (BK21 Plus Project Team) , Chonnam National University , Gwangju , Republic of Korea
| | - Na-Rae Shin
- a College of Veterinary Medicine (BK21 Plus Project Team) , Chonnam National University , Gwangju , Republic of Korea
| | - Ji-Won Park
- b Natural Medicine Research Center , Korea Research Institute of Bioscience and Biotechnology , Cheongwon-gun , Chungbuk , Republic of Korea
| | - Sung-Hyeuk Park
- a College of Veterinary Medicine (BK21 Plus Project Team) , Chonnam National University , Gwangju , Republic of Korea
| | - In-Chul Lee
- c Natural Product Research Center , Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Joong-Sun Kim
- d Research Center , Dongnam Institute of Radiological and Medical Sciences , Busan , Republic of Korea
| | - Jong-Choon Kim
- a College of Veterinary Medicine (BK21 Plus Project Team) , Chonnam National University , Gwangju , Republic of Korea
| | - Kyung-Seop Ahn
- b Natural Medicine Research Center , Korea Research Institute of Bioscience and Biotechnology , Cheongwon-gun , Chungbuk , Republic of Korea
| | - In-Sik Shin
- a College of Veterinary Medicine (BK21 Plus Project Team) , Chonnam National University , Gwangju , Republic of Korea
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Meldrum K, Guo C, Marczylo EL, Gant TW, Smith R, Leonard MO. Mechanistic insight into the impact of nanomaterials on asthma and allergic airway disease. Part Fibre Toxicol 2017; 14:45. [PMID: 29157272 PMCID: PMC5697410 DOI: 10.1186/s12989-017-0228-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/10/2017] [Indexed: 01/02/2023] Open
Abstract
Asthma is a chronic respiratory disease known for its high susceptibility to environmental exposure. Inadvertent inhalation of engineered or incidental nanomaterials is a concern for human health, particularly for those with underlying disease susceptibility. In this review we provide a comprehensive analysis of those studies focussed on safety assessment of different nanomaterials and their unique characteristics on asthma and allergic airway disease. These include in vivo and in vitro approaches as well as human and population studies. The weight of evidence presented supports a modifying role for nanomaterial exposure on established asthma as well as the development of the condition. Due to the variability in modelling approaches, nanomaterial characterisation and endpoints used for assessment in these studies, there is insufficient information for how one may assign relative hazard potential to individual nanoscale properties. New developments including the adoption of standardised models and focussed in vitro and in silico approaches have the potential to more reliably identify properties of concern through comparative analysis across robust and select testing systems. Importantly, key to refinement and choice of the most appropriate testing systems is a more complete understanding of how these materials may influence disease at the cellular and molecular level. Detailed mechanistic insight also brings with it opportunities to build important population and exposure susceptibilities into models. Ultimately, such approaches have the potential to more clearly extrapolate relevant toxicological information, which can be used to improve nanomaterial safety assessment for human disease susceptibility.
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Affiliation(s)
- Kirsty Meldrum
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, OX11 0RQ, UK
| | - Chang Guo
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, OX11 0RQ, UK
| | - Emma L Marczylo
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, OX11 0RQ, UK
| | - Timothy W Gant
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, OX11 0RQ, UK
| | - Rachel Smith
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, OX11 0RQ, UK
| | - Martin O Leonard
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, OX11 0RQ, UK.
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Potential Toxicity and Underlying Mechanisms Associated with Pulmonary Exposure to Iron Oxide Nanoparticles: Conflicting Literature and Unclear Risk. NANOMATERIALS 2017; 7:nano7100307. [PMID: 28984829 PMCID: PMC5666472 DOI: 10.3390/nano7100307] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 09/26/2017] [Accepted: 09/28/2017] [Indexed: 02/07/2023]
Abstract
Fine/micron-sized iron oxide particulates are incidentally released from a number of industrial processes, including iron ore mining, steel processing, welding, and pyrite production. Some research suggests that occupational exposure to these particulates is linked to an increased risk of adverse respiratory outcomes, whereas other studies suggest that iron oxide is biologically benign. Iron oxide nanoparticles (IONPs), which are less than 100 nm in diameter, have recently surged in use as components of novel drug delivery systems, unique imaging protocols, as environmental catalysts, and for incorporation into thermoplastics. However, the adverse outcomes associated with occupational exposure to IONPs remain relatively unknown. Relevant in vivo studies suggest that pulmonary exposure to IONPs may induce inflammation, pulmonary fibrosis, genotoxicity, and extra-pulmonary effects. This correlates well with in vitro studies that utilize relevant dose, cell type(s), and meaningful end points. A majority of these adverse outcomes are attributed to increased oxidative stress, most likely caused by particle internalization, dissolution, release of free iron ions, and disruption of iron homeostasis. However, because the overall toxicity profile of IONPs is not well understood, it is difficult to set safe exposure limit recommendations that would be adequate for the protection of at-risk workers. This review article will focus on known risks following IONPs exposure supported by human, animal, and cell culture-based studies, the potential challenges intrinsic to IONPs toxicity assessment, and how these may contribute to the poorly characterized IONPs toxicity profile.
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Tang JQ, Hou XY, Yang CS, Li YX, Xin Y, Guo WW, Wei ZP, Liu YQ, Jiang G. Recent developments in nanomedicine for melanoma treatment. Int J Cancer 2017; 141:646-653. [PMID: 28340496 DOI: 10.1002/ijc.30708] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/11/2017] [Accepted: 03/16/2017] [Indexed: 01/04/2023]
Abstract
Melanoma is a most aggressive skin cancer with limited therapeutic options and its incidence is increasing rapidly in recent years. The discovery and application of new targeted therapy agents have shown significant benefits. However, adverse side-effects and resistance to chemotherapy remain formidable challenges in the clinical treatment of malignant melanoma. Nanotherapeutics offers an important prospect of overcoming these drawbacks. The anti-tumoral applications of nanomedicine are varied, including those in chemotherapy, RNA interference, photothermal therapy, and photodynamic therapy. Furthermore, nanomedicine allows delivery of the effector structures into the tumor site via passive or active targeting, thereby allowing increased therapeutic specificity and reduced side effects. In this review, we summarize the latest developments in the application of nanocarrier-mediated targeted drug delivery to melanoma and nanomedicine-related clinical trials in melanoma treatment. We also discuss existing problems and opportunities for future developments, providing direction and new thoughts for further studies.
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Affiliation(s)
- Jian-Qin Tang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Xiao-Yang Hou
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Chun-Sheng Yang
- Department of Dermatology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, 223002, China
| | - Ya-Xi Li
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Yong Xin
- Department of Radiotherapy, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Wen-Wen Guo
- Department of Radiotherapy, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Zhi-Ping Wei
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Yan-Qun Liu
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Guan Jiang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
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Zou W, Zhang X, Zhao M, Zhou Q, Hu X. Cellular proliferation and differentiation induced by single-layer molybdenum disulfide and mediation mechanisms of proteins via the Akt-mTOR-p70S6K signaling pathway. Nanotoxicology 2017; 11:781-793. [PMID: 28714804 DOI: 10.1080/17435390.2017.1357213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Single-layer molybdenum disulfide (SLMoS2) is a novel kind of 2D nanosheet that has attracted great attention regarding its use in biosensors, drug delivery, tissue engineering, and therapy. However, our results demonstrated that SLMoS2 accelerated proliferation and promoted myogenic differentiation and epithelial-mesenchymal transition (EMT) in human embryonic lung fibroblasts (HELFs). The abnormal proliferation and differentiation of HELFs contribute to idiopathic pulmonary fibrosis. Specifically, SLMoS2 significantly stimulated the expression of myofibroblast- and mesenchymal-associated genes and proteins. The Akt-mTOR-p70S6K signaling pathway plays a critical role in the acceleration of proliferation and promotion of myogenic differentiation and EMT in HELFs induced by SLMoS2. After cell uptake, SLMoS2 was primarily located in the cytoplasm and the perinuclear region and activated Akt-dependent signaling due to the generation of reactive oxygen species (ROS). Moreover, bovine serum albumin (BSA) binding markedly inhibited the cellular uptake of SLMoS2 and the production of intracellular ROS due to an increased thickness and reduced adhesion of HELFs. BSA binding also mitigated the SLMoS2-activated phosphorylation of Akt-dependent signaling pathways. This study is the first to illustrate the induction of cellular proliferation and differentiation by SLMoS2 and the related mediation by proteins through Akt-mTOR-p70S6K signaling pathway.
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Affiliation(s)
- Wei Zou
- a Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin , China
| | - Xingli Zhang
- a Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin , China
| | - Mengyang Zhao
- a Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin , China
| | - Qixing Zhou
- a Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin , China
| | - Xiangang Hu
- a Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin , China
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Schwotzer D, Ernst H, Schaudien D, Kock H, Pohlmann G, Dasenbrock C, Creutzenberg O. Effects from a 90-day inhalation toxicity study with cerium oxide and barium sulfate nanoparticles in rats. Part Fibre Toxicol 2017; 14:23. [PMID: 28701164 PMCID: PMC5508701 DOI: 10.1186/s12989-017-0204-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/05/2017] [Indexed: 12/27/2022] Open
Abstract
Background Nanomaterials like cerium oxide and barium sulfate are frequently processed in industrial and consumer products and exposure of humans and other organisms is likely. Generally less information is given on health effects and toxicity, especially regarding long-term exposure to low nanoparticle doses. Since inhalation is still the major route of uptake the present study focused on pulmonary effects of CeO2NM-212 (0.1, 0.3, 1.0, 3.0 mg/m3) and BaSO4NM-220 nanoparticles (50.0 mg/m3) in a 90-day exposure setup. To define particle-related effects and potential mechanisms of action, observations in histopathology, bronchoalveolar lavage and immunohistochemistry were linked to pulmonary deposition and clearance rates. This further allows evaluation of potential overload related effects. Results Lung burden values increased with increasing nanoparticle dose levels and ongoing exposure. At higher doses, cerium clearance was impaired, suggesting lung overload. Barium elimination was extremely rapid and without any signs of overload. Bronchoalveolar lavage fluid analysis and histopathology revealed lung tissue inflammation with increasing severity and post-exposure persistency for CeO2. Also, marker levels for genotoxicity and cell proliferation were significantly increased. BaSO4 showed less inflammation or persistency of effects and particularly affected the nasal cavity. Conclusion CeO2 nanoparticles penetrate the alveolar space and affect the respiratory tract after inhalation mainly in terms of inflammation. Effects at low dose levels and post-exposure persistency suggest potential long-term effects and a notable relevance for human health. The generated data might be useful to improve nanoparticle risk assessment and threshold value generation. Mechanistic investigations at conditions of non-overload and absent inflammation should be further investigated in future studies.
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Affiliation(s)
- Daniela Schwotzer
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany.
| | - Heinrich Ernst
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Heiko Kock
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Gerhard Pohlmann
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Clemens Dasenbrock
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
| | - Otto Creutzenberg
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Nikolai-Fuchs-Straße 1, 30625, Hannover, Germany
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