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Hashida M, Steelman AJ, Erdman JW. α-Tocopherol Depletion Exacerbates Lipopolysaccharide-Induced Reduction of Grip Strength. J Nutr 2024; 154:498-504. [PMID: 38141774 DOI: 10.1016/j.tjnut.2023.12.031] [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: 10/05/2023] [Revised: 12/01/2023] [Accepted: 12/19/2023] [Indexed: 12/25/2023] Open
Abstract
BACKGROUND α-Tocopherol (αT) deficiency causes several neurologic disorders, such as spinocerebellar ataxia, peripheral neuropathy, and myopathy. Furthermore, decreased antibody production, impaired ex vivo T cell function, and elevated cytokine production are observed in humans and mice with αT deficiency. Although modeling αT deficiency in animals is challenging, αT depletion can be more readily achieved in α-tocopherol transfer protein-null (Ttpa-/-) mice than wild-type (WT) mice. Thus, the Ttpa-/- mouse model is a useful tool for studying metabolic consequences of low αT status. Optimizing this mouse model and selecting the reliable indicators/markers of deficiency are still needed. OBJECTIVE Our objective was to assess whether αT depletion alters lipopolysaccharide (LPS)-induced inflammatory response in the brain and/or grip strength used as a proxy for fatigue. METHODS WT and Ttpa-/- weanling littermates (n = 37-40/genotype) were fed an αT deficient diet ad libitum for 9 wk. Mice were then injected with LPS (10 μg/mouse) or saline (control) intraperitoneally and killed 4 h later. Concentrations of αT in diet and tissues were measured via high-pressure liquid chromatography. Grip strength was evaluated via a grip strength meter apparatus 2 d before and 3.5 h after LPS injection. Cerebellar and serum interleukin-6 (IL-6) concentrations were measured via enzyme-linked immunosorbent assay. RESULTS αT concentrations in the liver, heart, and adipose tissue of WT mice were higher than Ttpa-/- mice. Although αT was detected in the brain, muscle, and serum of WT mice, it was undetectable in these tissues of Ttpa-/- mice. Cerebellar and serum concentrations of IL-6 were increased in LPS-treated groups but were not significantly affected by genotype. Grip strength was reduced in LPS-treated groups, an effect that was more pronounced in Ttpa-/- mice. CONCLUSIONS Systemic LPS administration caused an acute inflammatory response with a concomitant decline in grip strength, especially in Ttpa-/- mice. αT depletion appears to exacerbate reductions in grip strength brought on by systemic inflammation.
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Affiliation(s)
- Megumi Hashida
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Andrew J Steelman
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - John W Erdman
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, United States.
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2
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Fatkhutdinova LM, Gabidinova GF, Daminova AG, Dimiev AM, Khamidullin TL, Valeeva EV, Cokou AEE, Validov SZ, Timerbulatova GA. Mechanisms related to carbon nanotubes genotoxicity in human cell lines of respiratory origin. Toxicol Appl Pharmacol 2024; 482:116784. [PMID: 38070752 DOI: 10.1016/j.taap.2023.116784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/22/2023]
Abstract
Potential genotoxicity and carcinogenicity of carbon nanotubes (CNT), as well as the underlying mechanisms, remains a pressing topic. The study aimed to evaluate and compare the genotoxic effect and mechanisms of DNA damage under exposure to different types of CNT. Immortalized human cell lines of respiratory origin BEAS-2B, A549, MRC5-SV40 were exposed to three types of CNT: MWCNT Taunit-M, pristine and purified SWCNT TUBALL™ at concentrations in the range of 0.0006-200 μg/ml. Data on the CNT content in the workplace air were used to calculate the lower concentration limit. The genotoxic potential of CNTs was investigated at non-cytotoxic concentrations using a DNA comet assay. We explored reactive oxygen species (ROS) formation, direct genetic material damage, and expression of a profibrotic factor TGFB1 as mechanisms related to genotoxicity upon CNT exposure. An increase in the number of unstable DNA regions was observed at a subtoxic concentration of CNT (20 μg/ml), with no genotoxic effects at concentrations corresponding to industrial exposures being found. While the three test articles of CNTs exhibited comparable genotoxic potential, their mechanisms appeared to differ. MWCNTs were found to penetrate the nucleus of respiratory cells, potentially interacting directly with genetic material, as well as to enhance ROS production and TGFB1 gene expression. For A549 and MRC5-SV40, genotoxicity depended mainly on MWCNT concentration, while for BEAS-2B - on ROS production. Mechanisms of SWCNT genotoxicity were not so obvious. Oxidative stress and increased expression of profibrotic factors could not fully explain DNA damage under SWCNT exposure, and other mechanisms might be involved.
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Affiliation(s)
| | | | | | - Ayrat M Dimiev
- Kazan Federal University, Laboratory for Advanced Carbon Nanomaterials, Kazan 420008, Russian Federation
| | - Timur L Khamidullin
- Kazan Federal University, Laboratory for Advanced Carbon Nanomaterials, Kazan 420008, Russian Federation
| | - Elena V Valeeva
- Kazan State Medical University, Kazan 420012, Russian Federation
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Chang J, Wang J, Luo B, Li W, Xiong Z, Du C, Wang X, Wang Y, Tian J, Li S, Fang Y, Li L, Dong J, Tan K, Fan Y, Cao P. Vitamin E stabilizes iron and mitochondrial metabolism in pulmonary fibrosis. Front Pharmacol 2023; 14:1240829. [PMID: 38125893 PMCID: PMC10731373 DOI: 10.3389/fphar.2023.1240829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction: Pulmonary fibrosis (PF) is a fatal chronic lung disease that causes structural damage and decreased lung function and has a poor prognosis. Currently, there is no medicine that can truly cure PF. Vitamin E (VE) is a group of natural antioxidants with anticancer and antimutagenic properties. There have been a few reports about the attenuation of PF by VE in experimental animals, but the molecular mechanisms are not fully understood. Methods: Bleomycin-induced PF (BLM-PF) mouse model, and cultured mouse primary lung fibroblasts and MLE 12 cells were utilized. Pathological examination of lung sections, immunoblotting, immunofluorescent staining, and real-time PCR were conducted in this study. Results: We confirmed that VE significantly delayed the progression of BLM-PF and increased the survival rates of experimental mice with PF. VE suppressed the pathological activation and fibrotic differentiation of lung fibroblasts and epithelial-mesenchymal transition and alleviated the inflammatory response in BLM-induced fibrotic lungs and pulmonary epithelial cells in vitro. Importantly, VE reduced BLM-induced ferritin expression in fibrotic lungs, whereas VE did not exhibit iron chelation properties in fibroblasts or epithelial cells in vitro. Furthermore, VE protected against mitochondrial dysmorphology and normalized mitochondrial protein expression in BLM-PF lungs. Consistently, VE suppressed apoptosis in BLM-PF lungs and pulmonary epithelial cells in vitro. Discussion: Collectively, VE markedly inhibited BLM-induced PF through a complex mechanism, including improving iron metabolism and mitochondrial structure and function, mitigating inflammation, and decreasing the fibrotic functions of fibroblasts and epithelial cells. Therefore, VE presents a highly potential therapeutic against PF due to its multiple protective effects with few side effects.
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Affiliation(s)
- Jing Chang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Jiahui Wang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Beibei Luo
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Weihao Li
- Special Clinical Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ziyue Xiong
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Chaoqi Du
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Xue Wang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Yuejiao Wang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Jingya Tian
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Shuxin Li
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Yue Fang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Longjie Li
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Jing Dong
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Ke Tan
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Yumei Fan
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Pengxiu Cao
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
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Guo J, Zhao Z, Shang Z, Tang Z, Zhu H, Zhang K. Nanodrugs with intrinsic radioprotective exertion: Turning the double-edged sword into a single-edged knife. EXPLORATION (BEIJING, CHINA) 2023; 3:20220119. [PMID: 37324033 PMCID: PMC10190950 DOI: 10.1002/exp.20220119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 02/10/2023] [Indexed: 06/17/2023]
Abstract
Ionizing radiation (IR) poses a growing threat to human health, and thus ideal radioprotectors with high efficacy and low toxicity still receive widespread attention in radiation medicine. Despite significant progress made in conventional radioprotectants, high toxicity, and low bioavailability still discourage their application. Fortunately, the rapidly evolving nanomaterial technology furnishes reliable tools to address these bottlenecks, opening up the cutting-edge nano-radioprotective medicine, among which the intrinsic nano-radioprotectants characterized by high efficacy, low toxicity, and prolonged blood retention duration, represent the most extensively studied class in this area. Herein, we made the systematic review on this topic, and discussed more specific types of radioprotective nanomaterials and more general clusters of the extensive nano-radioprotectants. In this review, we mainly focused on the development, design innovations, applications, challenges, and prospects of the intrinsic antiradiation nanomedicines, and presented a comprehensive overview, in-depth analysis as well as an updated understanding of the latest advances in this topic. We hope that this review will promote the interdisciplinarity across radiation medicine and nanotechnology and stimulate further valuable studies in this promising field.
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Affiliation(s)
- Jiaming Guo
- Department of Radiation Medicine, College of Naval MedicineNaval Medical UniversityShanghaiChina
| | - Zhemeng Zhao
- Department of Radiation Medicine, College of Naval MedicineNaval Medical UniversityShanghaiChina
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology CollegeZhejiang Ocean UniversityZhoushanChina
| | - Zeng‐Fu Shang
- Department of Radiation OncologySimmons Comprehensive Cancer Center at UT Southwestern Medical CenterDallasTexasUSA
| | - Zhongmin Tang
- Department of RadiologyUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Huanhuan Zhu
- Central Laboratory, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiP. R. China
| | - Kun Zhang
- Central Laboratory, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiP. R. China
- National Center for International Research of Bio‐targeting TheranosticsGuangxi Medical UniversityNanningGuangxiP. R. China
- Department of Oncology, Sichuan Provincial People's Hospital, School of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuanP. R. China
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Mohd Nurazzi N, Asyraf M, Khalina A, Abdullah N, Sabaruddin FA, Kamarudin SH, Ahmad S, Mahat AM, Lee CL, Aisyah HA, Norrrahim MNF, Ilyas RA, Harussani MM, Ishak MR, Sapuan SM. Fabrication, Functionalization, and Application of Carbon Nanotube-Reinforced Polymer Composite: An Overview. Polymers (Basel) 2021; 13:1047. [PMID: 33810584 PMCID: PMC8037012 DOI: 10.3390/polym13071047] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 01/09/2023] Open
Abstract
A novel class of carbon nanotube (CNT)-based nanomaterials has been surging since 1991 due to their noticeable mechanical and electrical properties, as well as their good electron transport properties. This is evidence that the development of CNT-reinforced polymer composites could contribute in expanding many areas of use, from energy-related devices to structural components. As a promising material with a wide range of applications, their poor solubility in aqueous and organic solvents has hindered the utilizations of CNTs. The current state of research in CNTs-both single-wall carbon nanotubes (SWCNT) and multiwalled carbon nanotube (MWCNT)-reinforced polymer composites-was reviewed in the context of the presently employed covalent and non-covalent functionalization. As such, this overview intends to provide a critical assessment of a surging class of composite materials and unveil the successful development associated with CNT-incorporated polymer composites. The mechanisms related to the mechanical, thermal, and electrical performance of CNT-reinforced polymer composites is also discussed. It is vital to understand how the addition of CNTs in a polymer composite alters the microstructure at the micro- and nano-scale, as well as how these modifications influence overall structural behavior, not only in its as fabricated form but also its functionalization techniques. The technological superiority gained with CNT addition to polymer composites may be advantageous, but scientific values are here to be critically explored for reliable, sustainable, and structural reliability in different industrial needs.
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Affiliation(s)
- Norizan Mohd Nurazzi
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia
| | - M.R.M. Asyraf
- Department of Aerospace Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
| | - Abdan Khalina
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
| | - Norli Abdullah
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia
| | - Fatimah Athiyah Sabaruddin
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
- School of Industrial Technology, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
| | - Siti Hasnah Kamarudin
- School of Industrial Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam, Selangor 40450, Malaysia; (S.H.K.); (S.A.)
| | - So’bah Ahmad
- School of Industrial Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam, Selangor 40450, Malaysia; (S.H.K.); (S.A.)
| | - Annie Maria Mahat
- Centre for Functional Materials and Nanotechnology, Institute of Science, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia;
| | - Chuan Li Lee
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
| | - H. A. Aisyah
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
| | - Mohd Nor Faiz Norrrahim
- Research Center for Chemical Defence, Universiti Pertahanan Nasional Malaysia (UPNM), Kem Perdana, Sungai Besi, Kuala Lumpur 57000, Malaysia;
| | - R. A. Ilyas
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai, Johor 81310, Malaysia;
| | - M. M. Harussani
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
| | - M. R. Ishak
- Department of Aerospace Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
| | - S. M. Sapuan
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor 43400, Malaysia; (F.A.S.); (C.L.L.); (H.A.A.); (M.M.H.); (S.M.S.)
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Naskhi A, Jabbari S, Othman GQ, Aziz FM, Salihi A, Sharifi M, Sari S, Akhtari K, Abdulqadir SZ, Alasady AA, Abou-Zied OK, Hasan A, Falahati M. Vitamin K1 As A Potential Molecule For Reducing Single-Walled Carbon Nanotubes-Stimulated α-Synuclein Structural Changes And Cytotoxicity. Int J Nanomedicine 2019; 14:8433-8444. [PMID: 31749617 PMCID: PMC6818677 DOI: 10.2147/ijn.s223182] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/09/2019] [Indexed: 11/23/2022] Open
Abstract
Aims Different kinds of vitamins can be used as promising candidates to mitigate the structural changes of proteins and associated cytotoxicity stimulated by NPs. Therefore, the structural changes of α-syn molecules and their associated cytotoxicity in the presence of SWCNTs either alone or co-incubated with vitamin K1 were studied by spectroscopic, bioinformatical, and cellular assays. Methods Intrinsic and ThT fluorescence, CD, and Congo red absorption spectroscopic approaches as well as TEM investigation, molecular docking, and molecular dynamics were used to explore the protective effect of vitamin K1 on the structural changes of α-syn induced by SWCNTs. The cytotoxicity of α-syn/SWCNTs co-incubated with vitamin K1 against SH-SY5Y cells was also carried out by MTT, LDH, and caspase-3 assays. Results Fluorescence spectroscopy showed that vitamin K1 has a significant effect in reducing SWCNT-induced fluorescence quenching and aggregation of α- syn. CD, Congo red adsorption, and TEM investigations determined that co-incubation of α- syn with vitamin K1 inhibited the propensity of α-syn into the structural changes and amorphous aggregation in the presence of SWCNT. Docking studies determined the occupation of preferred docked site of SWCNT by vitamin K1 on α- syn conformation. A molecular dynamics study also showed that vitamin K1 reduced the structural changes of α- syn induced by SWCNT. Cellular data exhibited that the cytotoxicity of α- syn co-incubated with vitamin K1 in the presence of SWCNTs is less than the outcomes obtained in the absence of the vitamin K1. Conclusion It may be concluded that vitamin K1 decreases the propensity of α- syn aggregation in the presence of SWCNTs and induction of cytotoxicity.
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Affiliation(s)
- Amitis Naskhi
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sanaz Jabbari
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Goran Qader Othman
- Department of Medical Laboratory, Health Technical College, Erbil Polytechnic University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq.,Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Soyar Sari
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Shang Ziyad Abdulqadir
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Asaad Ab Alasady
- Anatomy, Histology, and Embryology Unit, College of Medicine, University of Duhok, Kurdistan Region, Iraq
| | - Osama K Abou-Zied
- Department of Chemistry, Faculty of Science, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.,Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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7
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Raja IS, Song SJ, Kang MS, Lee YB, Kim B, Hong SW, Jeong SJ, Lee JC, Han DW. Toxicity of Zero- and One-Dimensional Carbon Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1214. [PMID: 31466309 PMCID: PMC6780407 DOI: 10.3390/nano9091214] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/23/2019] [Accepted: 08/23/2019] [Indexed: 12/14/2022]
Abstract
The zero (0-D) and one-dimensional (1-D) carbon nanomaterials have gained attention among researchers because they exhibit a larger surface area to volume ratio, and a smaller size. Furthermore, carbon is ubiquitously present in all living organisms. However, toxicity is a major concern while utilizing carbon nanomaterials for biomedical applications such as drug delivery, biosensing, and tissue regeneration. In the present review, we have summarized some of the recent findings of cellular and animal level toxicity studies of 0-D (carbon quantum dot, graphene quantum dot, nanodiamond, and carbon black) and 1-D (single-walled and multi-walled carbon nanotubes) carbon nanomaterials. The in vitro toxicity of carbon nanomaterials was exemplified in normal and cancer cell lines including fibroblasts, osteoblasts, macrophages, epithelial and endothelial cells of different sources. Similarly, the in vivo studies were illustrated in several animal species such as rats, mice, zebrafish, planktons and, guinea pigs, at various concentrations, route of administrations and exposure of nanoparticles. In addition, we have described the unique properties and commercial usage, as well as the similarities and differences among the nanoparticles. The aim of the current review is not only to signify the importance of studying the toxicity of 0-D and 1-D carbon nanomaterials, but also to emphasize the perspectives, future challenges and possible directions in the field.
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Affiliation(s)
| | - Su-Jin Song
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Korea
| | - Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Korea
| | - Yu Bin Lee
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Korea
| | - Bongju Kim
- Dental Life Science Research Institute & Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Korea
| | - Seung Jo Jeong
- GS Medical Co., Ltd., Cheongju-si, Chungcheongbuk-do 28161, Korea
| | - Jae-Chang Lee
- Bio-Based Chemistry Research Center, Korea Research Institute of Chemical Technology, Ulsan 44429, Korea.
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Korea.
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8
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Choi Y, Lee S, Kim S, Lee J, Ha J, Oh H, Lee Y, Kim Y, Yoon Y. Vitamin E (α-tocopherol) consumption influences gut microbiota composition. Int J Food Sci Nutr 2019; 71:221-225. [PMID: 31298050 DOI: 10.1080/09637486.2019.1639637] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
This study evaluated if vitamin E consumption affects gut microbiota. Mice were grouped into control, low vitamin E (LV), and high vitamin E (HV). LV and HV were fed DL-α-tocopherol at 0.06 mg/20 g and 0.18 mg/20 g of body weight per day, respectively, for 34 days. Body weight of mice was measured before and after vitamin E treatment. Animals were sacrificed, liver, spleen, small intestine and large intestine collected, and weight and length were measured. Composition of gut microbiota was determined by microbiome analysis. Spleen weight index of LV was the highest. However, liver weight indices and intestinal lengths were not different. Body weights of LV group were higher than those of control. Ratio of Firmicutes to Bacteroidetes was different in LV compared to control and HV. These results indicate that low-level consumption of vitamin E increases spleen and body weight, and changes gut microbiota.
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Affiliation(s)
- Yukyung Choi
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
| | - Soomin Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul, Korea
| | - Sejeong Kim
- Risk Analysis Research Center, Sookmyung Women's University, Seoul, Korea
| | - Jeeyeon Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul, Korea
| | - Jimyeong Ha
- Risk Analysis Research Center, Sookmyung Women's University, Seoul, Korea
| | - Hyemin Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
| | - Yewon Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
| | - Yujin Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
| | - Yohan Yoon
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea.,Risk Analysis Research Center, Sookmyung Women's University, Seoul, Korea
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9
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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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10
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Pietroiusti A, Stockmann-Juvala H, Lucaroni F, Savolainen K. Nanomaterial exposure, toxicity, and impact on human health. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2018; 10:e1513. [PMID: 29473695 DOI: 10.1002/wnan.1513] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/03/2018] [Accepted: 01/16/2018] [Indexed: 12/17/2022]
Abstract
The use of engineered nanomaterials (ENM) has grown after the turn of the 21st century. Also, the production of ENM has globally grown, and exposure of workers especially via the lungs to ENM has increased. This review tackles with effects of ENM on workers' health because occupational environment is the main source of exposure to ENM. Assessment of exposure to ENM is demanding, and today there are no occupational exposure level (OEL) for ENM. This is partly due to challenges of such measurements, and in part to the unknown causality between ENM metrics and effects. There are also marked gaps in systematic knowledge on ENM hazards. Human health surveys of exposed workers, or human field studies have not identified specific effects of ENM linking them with a specific exposure. There is, however, a consensus that material characteristics such as size, and chemistry influence effects of ENM. Available data suggest that multiwalled carbon nanotubes (MWCNT) affect the immunological system and cause inflammation of the lungs, or signs of asthma whereas carbon nanofibers (CNF) may cause interstitial fibrosis. Metallic and metal oxide nanoparticles together with MWCNT induce genotoxicity, and a given type of MWCNT has been identified as a possible human carcinogen. Currently, lack of understanding of mechanisms of effects of ENM renders assessment of hazards and risks of ENM material-by-material a necessity. The so called "omics" approaches utilizing ENM-induced alterations in gene and protein expression may be useful in the development of a new paradigm for ENM hazard and risk assessment. This article is categorized under: Toxicology and Regulatory Issues in Nanomedicine > Toxicology of Nanomaterials.
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Affiliation(s)
- Antonio Pietroiusti
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Francesca Lucaroni
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Kai Savolainen
- Work Environment, Finnish Institute of Occupational Health, Helsinki, Finland
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11
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Onoda A, Takeda K, Umezawa M. Pretreatment with N-acetyl cysteine suppresses chronic reactive astrogliosis following maternal nanoparticle exposure during gestational period. Nanotoxicology 2017; 11:1012-1025. [PMID: 29046125 DOI: 10.1080/17435390.2017.1388864] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Early pregnant employees are potentially and unintendedly exposed to industrial chemicals including nanoparticles. Developmental toxicity of nanoparticle exposure has been concerned because exposure to fine particle including carbon black nanoparticle (CB-NP) during the brain developmental stage enhances the risk of brain disorders. Maternal CB-NP exposure dose-dependently induces astrogliosis, which is an abnormal increase in the reactive astrocytes with glial fibrillary acidic protein (GFAP) and aquaporin-4 overexpression due to the destruction of nearby neurons and blood vessels. The present study aimed to investigate protective effects of antioxidants on the histopathological denaturation with astrogliosis following maternal CB-NP exposure in offspring mice, thereby to evaluate the role of oxidative stress on the developmental toxicity. Pregnant ICR mice were treated with CB-NP by intranasal instillation on gestational days 5 and 9. N-acetyl cysteine (NAC) or ascorbic acid was intraperitoneally administered to the pregnant mice 1 h prior to CB-NP instillation. The brains were collected from 6- to 12-week-old offspring mice and analyzed using western blotting and immunohistochemistry. NAC suppressed GFAP overexpression in 6- and 12-week-old offspring mice following maternal CB-NP exposure. However, NAC did not suppress aquaporin-4 overexpression following maternal CB-NP exposure. Ascorbic acid did not suppress, but rather slightly and significantly enhanced the expression of GFAP and aquaporin-4. These results indicate that astrogliosis by maternal CB-NP exposure is partially prevented by NAC pretreatment. Oxidative stress is a possible key factor of developmental neurotoxicity of maternal NP exposure. This study will contribute to elucidating the mechanisms underlying the effects of developmental neurotoxicity of NPs.
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Affiliation(s)
- Atsuto Onoda
- a Department of Hygienic Chemistry, Graduate School of Pharmaceutical Sciences , Tokyo University of Science , Noda , Chiba , Japan.,b The Center for Environmental Health Science for the Next Generation, Research Institute for Science and Technology , Organization for Research Advancement, Tokyo University of Science , Noda , Chiba , Japan.,c Research Fellow of Japan Society for the Promotion of Science , Chiyoda-ku , Tokyo , Japan
| | - Ken Takeda
- b The Center for Environmental Health Science for the Next Generation, Research Institute for Science and Technology , Organization for Research Advancement, Tokyo University of Science , Noda , Chiba , Japan
| | - Masakazu Umezawa
- b The Center for Environmental Health Science for the Next Generation, Research Institute for Science and Technology , Organization for Research Advancement, Tokyo University of Science , Noda , Chiba , Japan.,d Department of Materials Science and Technology, Faculty of Industrial Science and Technology , Tokyo University of Science , Katsushika , Tokyo , Japan
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12
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Kobayashi N, Izumi H, Morimoto Y. Review of toxicity studies of carbon nanotubes. J Occup Health 2017; 59:394-407. [PMID: 28794394 PMCID: PMC5635148 DOI: 10.1539/joh.17-0089-ra] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 07/13/2017] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE We reviewed studies on pulmonary, reproductive, and developmental toxicity caused by carbon nanotubes (CNTs). In paricular, we analyzed how CNT exposure affects the several processes of pulmonary toxicity, including inflammation, injury, fibrosis, and pulmonary tumors. METHODS In pulmonary toxicity, there are various processes, including inflammation, injury, fibrosis, respiratory tumor in the lungs, and biopersistence of CNTs and genotoxicity as tumor-related factors, to develop the respiratory tumor. We evaluated the evidence for the carcinogenicity of CNTs in each process. In the fields of reproductive and developmental toxicity, studies of CNTs have been conducted mainly with mice. We summarized the findings of reproductive and developmental toxicity studies of CNTs. RESULTS In animal studies, exposure to CNTs induced sustained inflammation, fibrosis, lung cancer following long-term inhalation, and gene damage in the lung. CNTs also showed high biopersistence in animal studies. Fetal malformations after intravenous and intraperitoneal injections and intratracheal instillation, fetal loss after intravenous injection, behavioral changes in offsprings after intraperitoneal injection, and a delay in the delivery of the first litter after intratracheal instillation were reported in mice-administered multi-walled carbon nanotubes (MWCNTs). Single-walled carbon nanotubes (SWCNTs) appeared to be embryolethal and teratogenic in mice when given by intravenous injection; moreover, the tubes induced death and growth retardation in chicken embryos. CONCLUSION CNTs are considered to have carcinogenicity and can cause lung tumors. However, the carcinogenicity of CNTs may attenuate if the fiber length is shorter. The available data provide initial information on the potential reproductive and developmental toxicity of CNTs.
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Affiliation(s)
- Norihiro Kobayashi
- Division of Environmental Chemistry, National Institute of Health Sciences
| | - Hiroto Izumi
- Department of Occupational Pneumology, Institute of Industrial Ecological Science, University of Occupational and Environmental Health
| | - Yasuo Morimoto
- Department of Occupational Pneumology, Institute of Industrial Ecological Science, University of Occupational and Environmental Health
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13
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Dobrovolskaia MA, Shurin MR, Kagan VE, Shvedova AA. Ins and Outs in Environmental and Occupational Safety Studies of Asthma and Engineered Nanomaterials. ACS NANO 2017; 11:7565-7571. [PMID: 28737932 PMCID: PMC6481664 DOI: 10.1021/acsnano.7b04916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
According to the Centers for Disease Control and Prevention, approximately 25 million Americans suffer from asthma. The disease total annual cost is about $56 billion and includes both the direct and indirect costs of medications, hospital stays, missed work, and decreased productivity. Air pollution with xenobiotics, bacterial agents, and industrial nanomaterials, such as carbon nanotubes, contribute to the exacerbation of this condition and are a point of particular attention in environmental toxicology as well as in occupational health and safety research. Mast cell degranulation and activation of Th2 cells triggered either by allergen-specific immunoglobulin E (IgE) or by alternative mechanisms, such as locally produced neurotransmitters, underlie the pathophysiological process of airway constriction during an asthma attack. Other immune and non-immune cell types, including basophils, eosinophils, Th1, Th17, Th9, macrophages, dendritic cells, and smooth muscle cells, are involved in the inflammatory and allergic responses during asthma, which, under chronic conditions, may progress without mast cells, the key trigger of the acute asthma attack. To decipher complex molecular, cellular, and genetic mechanisms, many researchers have attempted to develop in vitro and in vivo models to study asthma. Herein, we summarize the advantages and disadvantages of various models and their applicability to nanoparticle evaluation in asthma research. We further suggest that a framework for both in vitro and in vivo methods should be used to study the impact of engineered nanomaterials on asthma etiology, pathophysiology, and treatment.
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Affiliation(s)
- Marina A. Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, NCI at Frederick, Frederick, MD 21702, USA
| | - Michael R. Shurin
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
- Department of Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Valerian E. Kagan
- Departments of Environmental and Occupational Health, Pharmacology and Chemical Biology, Chemistry and Radiation Oncology and Center for Free and Antioxidant Health, University of Pittsburgh
| | - Anna A. Shvedova
- Health Effects Laboratory Division, National Institute of Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, USA
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14
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Kuempel ED, Jaurand MC, Møller P, Morimoto Y, Kobayashi N, Pinkerton KE, Sargent LM, Vermeulen RCH, Fubini B, Kane AB. Evaluating the mechanistic evidence and key data gaps in assessing the potential carcinogenicity of carbon nanotubes and nanofibers in humans. Crit Rev Toxicol 2017; 47:1-58. [PMID: 27537422 PMCID: PMC5555643 DOI: 10.1080/10408444.2016.1206061] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 06/22/2016] [Indexed: 12/31/2022]
Abstract
In an evaluation of carbon nanotubes (CNTs) for the IARC Monograph 111, the Mechanisms Subgroup was tasked with assessing the strength of evidence on the potential carcinogenicity of CNTs in humans. The mechanistic evidence was considered to be not strong enough to alter the evaluations based on the animal data. In this paper, we provide an extended, in-depth examination of the in vivo and in vitro experimental studies according to current hypotheses on the carcinogenicity of inhaled particles and fibers. We cite additional studies of CNTs that were not available at the time of the IARC meeting in October 2014, and extend our evaluation to include carbon nanofibers (CNFs). Finally, we identify key data gaps and suggest research needs to reduce uncertainty. The focus of this review is on the cancer risk to workers exposed to airborne CNT or CNF during the production and use of these materials. The findings of this review, in general, affirm those of the original evaluation on the inadequate or limited evidence of carcinogenicity for most types of CNTs and CNFs at this time, and possible carcinogenicity of one type of CNT (MWCNT-7). The key evidence gaps to be filled by research include: investigation of possible associations between in vitro and early-stage in vivo events that may be predictive of lung cancer or mesothelioma, and systematic analysis of dose-response relationships across materials, including evaluation of the influence of physico-chemical properties and experimental factors on the observation of nonmalignant and malignant endpoints.
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Affiliation(s)
- Eileen D Kuempel
- a National Institute for Occupational Safety and Health , Cincinnati , OH , USA
| | - Marie-Claude Jaurand
- b Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche , UMR 1162 , Paris , France
- c Labex Immuno-Oncology, Sorbonne Paris Cité, University of Paris Descartes , Paris , France
- d University Institute of Hematology, Sorbonne Paris Cité, University of Paris Diderot , Paris , France
- e University of Paris 13, Sorbonne Paris Cité , Saint-Denis , France
| | - Peter Møller
- f Department of Public Health , University of Copenhagen , Copenhagen , Denmark
| | - Yasuo Morimoto
- g Department of Occupational Pneumology , University of Occupational and Environmental Health , Kitakyushu City , Japan
| | | | - Kent E Pinkerton
- i Center for Health and the Environment, University of California , Davis , California , USA
| | - Linda M Sargent
- j National Institute for Occupational Safety and Health , Morgantown , West Virginia , USA
| | - Roel C H Vermeulen
- k Institute for Risk Assessment Sciences, Utrecht University , Utrecht , The Netherlands
| | - Bice Fubini
- l Department of Chemistry and "G.Scansetti" Interdepartmental Center , Università degli Studi di Torino , Torino , Italy
| | - Agnes B Kane
- m Department of Pathology and Laboratory Medicine , Brown University , Providence , RI , USA
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15
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Vlasova II, Kapralov AA, Michael ZP, Burkert SC, Shurin MR, Star A, Shvedova AA, Kagan VE. Enzymatic oxidative biodegradation of nanoparticles: Mechanisms, significance and applications. Toxicol Appl Pharmacol 2016; 299:58-69. [PMID: 26768553 PMCID: PMC4811710 DOI: 10.1016/j.taap.2016.01.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/01/2016] [Accepted: 01/02/2016] [Indexed: 12/22/2022]
Abstract
Biopersistence of carbon nanotubes, graphene oxide (GO) and several other types of carbonaceous nanomaterials is an essential determinant of their health effects. Successful biodegradation is one of the major factors defining the life span and biological responses to nanoparticles. Here, we review the role and contribution of different oxidative enzymes of inflammatory cells - myeloperoxidase, eosinophil peroxidase, lactoperoxidase, hemoglobin, and xanthine oxidase - to the reactions of nanoparticle biodegradation. We further focus on interactions of nanomaterials with hemoproteins dependent on the specific features of their physico-chemical and structural characteristics. Mechanistically, we highlight the significance of immobilized peroxidase reactive intermediates vs diffusible small molecule oxidants (hypochlorous and hypobromous acids) for the overall oxidative biodegradation process in neutrophils and eosinophils. We also accentuate the importance of peroxynitrite-driven pathways realized in macrophages via the engagement of NADPH oxidase- and NO synthase-triggered oxidative mechanisms. We consider possible involvement of oxidative machinery of other professional phagocytes such as microglial cells, myeloid-derived suppressor cells, in the context of biodegradation relevant to targeted drug delivery. We evaluate the importance of genetic factors and their manipulations for the enzymatic biodegradation in vivo. Finally, we emphasize a novel type of biodegradation realized via the activation of the "dormant" peroxidase activity of hemoproteins by the nano-surface. This is exemplified by the binding of GO to cyt c causing the unfolding and 'unmasking' of the peroxidase activity of the latter. We conclude with the strategies leading to safe by design carbonaceous nanoparticles with optimized characteristics for mechanism-based targeted delivery and regulatable life-span of drugs in circulation.
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Affiliation(s)
- Irina I Vlasova
- Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15219, United States; Research Institute for Physico-Chemical Medicine, Federal Medico-Biological Agency, Moscow 119453, Russia
| | - Alexandr A Kapralov
- Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15219, United States
| | - Zachary P Michael
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Seth C Burkert
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Michael R Shurin
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, United States; Department of Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, United States
| | - Alexander Star
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Anna A Shvedova
- Pathology and Physiology Research Branch, Health Effects Laboratory Division (HELD), National Institute for Occupational Safety and Health (NIOSH) and Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26505, United States.
| | - Valerian E Kagan
- Department of Environmental and Occupational Health, Center for Free Radical and Antioxidant Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15219, United States; Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States; Departments of Pharmacology and Chemical Biology and Radiation Oncology, University of Pittsburgh, Pittsburgh, PA 15260, United States.
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16
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Ema M, Gamo M, Honda K. A review of toxicity studies of single-walled carbon nanotubes in laboratory animals. Regul Toxicol Pharmacol 2016; 74:42-63. [DOI: 10.1016/j.yrtph.2015.11.015] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 12/26/2022]
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17
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Abstract
Nanomaterials, including nanoparticles and nanoobjects, are being incorporated into everyday products at an increasing rate. These products include consumer products of interest to toxicologists such as pharmaceuticals, cosmetics, food, food packaging, household products, and so on. The manufacturing of products containing or utilizing nanomaterials in their composition may also present potential toxicologic concerns in the workplace. The molecular complexity and composition of these nanomaterials are ever increasing, and the means and methods being applied to characterize and perform useful toxicologic assessments are rapidly advancing. This article includes presentations by experienced toxicologists in the nanotoxicology community who are focused on the applied aspect of the discipline toward supporting state of the art toxicologic assessments for food products and packaging, pharmaceuticals and medical devices, inhaled nanoparticle and gastrointestinal exposures, and addressing occupational safety and health issues and concerns. This symposium overview article summarizes 5 talks that were presented at the 35th Annual meeting of the American College of Toxicology on the subject of "Applied Nanotechnology."
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Affiliation(s)
| | | | - Anna A Shvedova
- CDC-National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | | | | | - Robin C Guy
- Robin Guy Consulting LLC, Lake Forest, IL, USA
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18
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Dong J, Ma Q. Suppression of basal and carbon nanotube-induced oxidative stress, inflammation and fibrosis in mouse lungs by Nrf2. Nanotoxicology 2015; 10:699-709. [PMID: 26592091 DOI: 10.3109/17435390.2015.1110758] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The lungs are susceptible to oxidative damage by inhaled pathogenic agents, including multi-walled carbon nanotubes (MWCNT). The nuclear factor erythroid 2-related factor 2 (Nrf2) has been implicated in regulating the body's defense against oxidative stress. Here, we analyzed the function of Nrf2 in the lungs. Under a basal condition, Nrf2 knockout (KO) mice showed apparent pulmonary infiltration of granulocytes, macrophages and B and T lymphocytes, and elevated deposition of collagen fibers. Exposure to MWCNT (XNRI MWNT-7, Mitsui, Tokyo, Japan) by pharyngeal aspiration elicited rapid inflammatory and fibrotic responses in a dose (0, 5, 20 and 40 μg) and time (1, 3, 7 and 14 d)-dependent manner. The responses reached peak levels on day 7 post-exposure to 40 μg MWCNT, evidenced by massive inflammatory infiltration and formation of inflammatory and fibrotic foci, which were more evident in Nrf2 KO than wild-type (WT) lungs. At the molecular level, Nrf2 protein was detected at a low level under a basal condition, and was dramatically increased by MWCNT in WT, but not Nrf2 KO, lungs. Activation of Nrf2 was inversely correlated with induced expression of fibrosis marker genes and profibrotic cytokines. Furthermore, the levels of ROS and oxidative stress were remarkably higher in Nrf2 KO than WT lungs under a physiological condition, and were dramatically increased by MWCNT, with the increase significantly more striking in KO lungs. The findings reveal that Nrf2 plays an important role in suppressing the basal and MWCNT-induced oxidant production, inflammation and fibrosis in the lungs, thereby protecting against MWCNT lung toxicity.
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Affiliation(s)
- Jie Dong
- a Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown , WV , USA
| | - Qiang Ma
- a Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown , WV , USA
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19
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Shinde A, Tsai CSJ. Toxicity mechanism in fetal lung fibroblast cells for multi-walled carbon nanotubes defined by chemical impurities and dispersibility. Toxicol Res (Camb) 2015; 5:248-258. [PMID: 30090341 DOI: 10.1039/c5tx00211g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 10/25/2015] [Indexed: 12/11/2022] Open
Abstract
Multi-walled carbon nanotubes (MWCNTs) are beneficial in a wide range of applications in fields such as electronics, optics and nano-medicine, so knowledge concerning their effect on human health is important. Physiochemical properties of MWCNTs can greatly affect their toxicity, however, there are no reports discussing the effect of size and chemical composition of MWCNTs on the toxic response of human lung cells. In this study, MWCNTs of two different purity grades were characterized and their toxic effects were compared on normal fetal lung fibroblast MRC-5 cells. The toxic effect on MRC-5 cells following 1-3 days exposure to low concentrations of research grade (RG) and industrial grade (IG) MWCNTs were studied using multiple biological assays. MWCNTs uptake in MRC-5 cells was analyzed using TEM. After physical and chemical analysis, RG-MWCNTs revealed contamination with MoS2 and were readily suspended in distilled water while IG-MWCNTs had no MoS2 contamination and much lower dispersibility. For a wide range of concentrations and exposure times, cells treated with RG-MWCNTs had distinctly reduced cell viability as compared to cells treated with IG-MWCNTs. Treatment with RG-MWCNTs resulted in high reactive oxygen/nitrogen species (ROS/RNS) levels indicating an oxidative stress mechanism while IG-MWCNT treated cells had low ROS/RNS amounts and a distorted cell membrane pointing towards a non-oxidative stress mechanism. Both agglomerates and individual MWCNTs were internalized efficiently by MRC-5 cells, which resulted in cell damage and ultimately cell death. Altogether, this study shows that the MoS2 contamination and size of MWCNTs' agglomerates affect the mechanism of toxicity in human fetal lung fibroblasts.
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Affiliation(s)
- Aparna Shinde
- Birck Nanotechnology Center , Discovery Park , Purdue University , 1205 West State Street , West Lafayette , IN 47907 , USA
| | - Candace S J Tsai
- Birck Nanotechnology Center , Discovery Park , Purdue University , 1205 West State Street , West Lafayette , IN 47907 , USA.,Department of Environmental and Radiological Health Science , Colorado State University , 1681 Campus Delivery , Fort Collins , CO 80523-1681 , USA . ; Tel: +1 (970) 491-1340
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20
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Elgrabli D, Dachraoui W, Ménard-Moyon C, Liu XJ, Bégin D, Bégin-Colin S, Bianco A, Gazeau F, Alloyeau D. Carbon Nanotube Degradation in Macrophages: Live Nanoscale Monitoring and Understanding of Biological Pathway. ACS NANO 2015; 9:10113-24. [PMID: 26331631 DOI: 10.1021/acsnano.5b03708] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Despite numerous applications, the cellular-clearance mechanism of multiwalled carbon nanotubes (MWCNTs) has not been clearly established yet. Previous in vitro studies showed the ability of oxidative enzymes to induce nanotube degradation. Interestingly, these enzymes have the common capacity to produce reactive oxygen species (ROS). Here, we combined material and life science approaches for revealing an intracellular way taken by macrophages to degrade carbon nanotubes. We report the in situ monitoring of ROS-mediated MWCNT degradation by liquid-cell transmission electron microscopy. Two degradation mechanisms induced by hydroxyl radicals were extracted from these unseen dynamic nanoscale investigations: a non-site-specific thinning process of the walls and a site-specific transversal drilling process on pre-existing defects of nanotubes. Remarkably, similar ROS-induced structural injuries were observed on MWCNTs after aging into macrophages from 1 to 7 days. Beside unraveling oxidative transformations of MWCNT structure, we elucidated an important, albeit not exclusive, biological pathway for MWCNT degradation in macrophages, involving NOX2 complex activation, superoxide production, and hydroxyl radical attack, which highlights the critical role of oxidative stress in cellular processing of MWCNTs.
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Affiliation(s)
- Dan Elgrabli
- Laboratoire Matière et Systèmes Complexes, UMR7057 CNRS/Université Paris Diderot , Paris 75205, France
| | - Walid Dachraoui
- Laboratoire Matériaux et Phénomènes Quantiques, UMR7057 CNRS/Université Paris Diderot , Paris 75205, France
| | - Cécilia Ménard-Moyon
- CNRS , Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France
| | - Xiao Jie Liu
- Institut de Chimie et des Procédés pour L'Energie, l'Environnement et la Santé (ICPEES) UMR 7515, Université de Strasbourg , 25 rue Becquerel, 67087 Cedex 2 Strasbourg, France
| | - Dominique Bégin
- Institut de Chimie et des Procédés pour L'Energie, l'Environnement et la Santé (ICPEES) UMR 7515, Université de Strasbourg , 25 rue Becquerel, 67087 Cedex 2 Strasbourg, France
| | - Sylvie Bégin-Colin
- Institut de Physique et Chimie de Strasbourg (IPCMS), UMR 7504 CNRS-Université de Strasbourg , 23 rue du Loess, BP 34, 67034 Cedex 2 Strasbourg, France
| | - Alberto Bianco
- CNRS , Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes, UMR7057 CNRS/Université Paris Diderot , Paris 75205, France
| | - Damien Alloyeau
- Laboratoire Matériaux et Phénomènes Quantiques, UMR7057 CNRS/Université Paris Diderot , Paris 75205, France
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Johnston H, Brown DM, Kanase N, Euston M, Gaiser BK, Robb CT, Dyrynda E, Rossi AG, Brown ER, Stone V. Mechanism of neutrophil activation and toxicity elicited by engineered nanomaterials. Toxicol In Vitro 2015; 29:1172-84. [PMID: 25962642 DOI: 10.1016/j.tiv.2015.04.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 04/24/2015] [Accepted: 04/27/2015] [Indexed: 02/03/2023]
Abstract
The effects of nanomaterials (NMs) on biological systems, especially their ability to stimulate inflammatory responses requires urgent investigation. We evaluated the response of the human differentiated HL60 neutrophil-like cell line to NMs. It was hypothesised that NM physico-chemical characteristics would influence cell responsiveness by altering intracellular Ca2+ concentration [Ca2+]i and reactive oxygen species production. Cells were exposed (1.95-125 μg/ml, 24 h) to silver (Ag), zinc oxide (ZnO), titanium dioxide (TiO2), multi-walled carbon nanotubes (MWCNTs) or ultrafine carbon black (ufCB) and cytotoxicity assessed (alamar blue assay). Relatively low (TiO2, MWCNTs, ufCB) or high (Ag, ZnO) cytotoxicity NMs were identified. Sub-lethal impacts of NMs on cell function were investigated for selected NMs only, namely TiO2, Ag and ufCB. Only Ag stimulated cell activation. Within minutes, Ag stimulated an increase in [Ca2+]i (in Fura-2 loaded cells), and a prominent inward ion current (assessed by electrophysiology). Within 2-4 h, Ag increased superoxide anion release and stimulated cytokine production (MCP-1, IL-8) that was diminished by Ca2+ inhibitors or trolox. Light microscopy demonstrated that cells had an activated phenotype. In conclusion NM toxicity was ranked; Ag>ufCB>TiO2, and the battery of tests used provided insight into the mechanism of action of NM toxicity to guide future testing strategies.
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Affiliation(s)
- Helinor Johnston
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom.
| | - David M Brown
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Nilesh Kanase
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Matthew Euston
- Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Birgit K Gaiser
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Calum T Robb
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom; MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, United Kingdom
| | - Elisabeth Dyrynda
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Adriano G Rossi
- MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, United Kingdom
| | - Euan R Brown
- Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Vicki Stone
- School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
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22
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Sun B, Wang X, Ji Z, Wang M, Liao YP, Chang CH, Li R, Zhang H, Nel AE, Xia T. NADPH Oxidase-Dependent NLRP3 Inflammasome Activation and its Important Role in Lung Fibrosis by Multiwalled Carbon Nanotubes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:2087-97. [PMID: 25581126 PMCID: PMC4420651 DOI: 10.1002/smll.201402859] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/11/2014] [Indexed: 05/19/2023]
Abstract
The purpose of this paper is to elucidate the key role of NADPH oxidase in NLRP3 inflammasome activation and generation of pulmonary fibrosis by multi-walled carbon nanotubes (MWCNTs). Although it is known that oxidative stress plays a role in pulmonary fibrosis by single-walled CNTs, the role of specific sources of reactive oxygen species, including NADPH oxidase, in inflammasome activation remains to be clarified. In this study, three long aspect ratio (LAR) materials (MWCNTs, single-walled carbon nanotubes, and silver nanowires) are used to compare with spherical carbon black and silver nanoparticles for their ability to trigger oxygen burst activity and NLRP3 assembly. All LAR materials but not spherical nanoparticles induce robust NADPH oxidase activation and respiratory burst activity in THP-1 cells, which are blunted in p22(phox) -deficient cells. The NADPH oxidase is directly involved in lysosomal damage by LAR materials, as demonstrated by decreased cathepsin B release and IL-1β production in p22(phox) -deficient cells. Reduced respiratory burst activity and inflammasome activation are also observed in bone marrow-derived macrophages from p47(phox) -deficient mice. Moreover, p47(phox) -deficient mice have reduced IL-1β production and lung collagen deposition in response to MWCNTs. Lung fibrosis is also suppressed by N-acetyl-cysteine in wild-type animals exposed to MWCNTs.
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Affiliation(s)
- Bingbing Sun
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California, 90095, USA; Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California, 90095, USA
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23
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Abstract
Carbon nanotubes (CNT) have been developed into new materials with a variety of industrial and commercial applications. In contrast, the physicochemical properties of CNT at the nanoscale render them the potency to generate toxic effects. Indeed, the potential health impacts of CNT have drawn a great deal of attention in recent years, owing to their identified toxicological and pathological consequences including cytotoxicity, inflammation, fibrosis, genotoxicity, tumorigenesis, and immunotoxicity. Understanding the mechanisms by which CNT induce toxicity and pathology is thus urgently needed for accurate risk assessment of CNT exposure in humans, and for safe and responsible development and commercialization of nanotechnology. Here, we summarize and discuss recent advances in this area with a focus on the molecular interactions between CNT and mammalian systems, and the signaling pathways important for the development of CNT toxicity such as the NF-κB, NLRP3 inflammasome, TGF-β1, MAPK, and p53 signaling cascades. With the current mechanistic evidence summarized in this review, we expect to provide new insights into CNT toxicology at the molecular level and offer new clues to the prevention of health effects resulting from CNT exposure. Moreover, we disclose questions and issues that remain in this rapidly advancing field of nanotoxicology, which would facilitate ascertaining future research directions.
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Affiliation(s)
- Jie Dong
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown, WV , USA
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25
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Padmanabhan J, Kyriakides TR. Nanomaterials, inflammation, and tissue engineering. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:355-70. [PMID: 25421333 DOI: 10.1002/wnan.1320] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 08/12/2014] [Accepted: 10/11/2014] [Indexed: 01/30/2023]
Abstract
Nanomaterials exhibit unique properties that are absent in the bulk material because decreasing material size leads to an exponential increase in surface area, surface area to volume ratio, and effective stiffness, resulting in altered physiochemical properties. Diverse categories of nanomaterials such as nanoparticles, nanoporous scaffolds, nanopatterned surfaces, nanofibers, and carbon nanotubes can be generated using advanced fabrication and processing techniques. These materials are being increasingly incorporated in tissue engineering scaffolds to facilitate the development of biomimetic substitutes to replace damaged tissues and organs. Long-term success of nanomaterials in tissue engineering is contingent upon the inflammatory responses they elicit in vivo. This review seeks to summarize the recent developments in our understanding of biochemical and biophysical attributes of nanomaterials and the inflammatory responses they elicit, with a focus on strategies for nanomaterial design in tissue engineering applications.
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Affiliation(s)
- Jagannath Padmanabhan
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA; Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, USA
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26
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Abstract
Carbon nanotubes (CNTs) are an important class of nanomaterials, which have numerous novel properties that make them useful in technology and industry. Generally, there are two types of CNTs: single-walled nanotubes (SWNTs) and multi-walled nanotubes. SWNTs, in particular, possess unique electrical, mechanical, and thermal properties, allowing for a wide range of applications in various fields, including the electronic, computer, aerospace, and biomedical industries. However, the use of SWNTs has come under scrutiny, not only due to their peculiar nanotoxicological profile, but also due to the forecasted increase in SWNT production in the near future. As such, the risk of human exposure is likely to be increased substantially. Yet, our understanding of the toxicological risk of SWNTs in human biology remains limited. This review seeks to examine representative data on the nanotoxicity of SWNTs by first considering how SWNTs are absorbed, distributed, accumulated and excreted in a biological system, and how SWNTs induce organ-specific toxicity in the body. The contradictory findings of numerous studies with regards to the potential hazards of SWNT exposure are discussed in this review. The possible mechanisms and molecular pathways associated with SWNT nanotoxicity in target organs and specific cell types are presented. We hope that this review will stimulate further research into the fundamental aspects of CNTs, especially the biological interactions which arise due to the unique intrinsic characteristics of CNTs.
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27
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Møller P, Christophersen DV, Jensen DM, Kermanizadeh A, Roursgaard M, Jacobsen NR, Hemmingsen JG, Danielsen PH, Cao Y, Jantzen K, Klingberg H, Hersoug LG, Loft S. Role of oxidative stress in carbon nanotube-generated health effects. Arch Toxicol 2014; 88:1939-64. [DOI: 10.1007/s00204-014-1356-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 08/28/2014] [Indexed: 01/19/2023]
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28
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Autophagy as a Possible Underlying Mechanism of Nanomaterial Toxicity. NANOMATERIALS 2014; 4:548-582. [PMID: 28344236 PMCID: PMC5304698 DOI: 10.3390/nano4030548] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 05/23/2014] [Accepted: 06/23/2014] [Indexed: 12/27/2022]
Abstract
The rapid development of nanotechnologies is raising safety concerns because of the potential effects of engineered nanomaterials on human health, particularly at the respiratory level. Since the last decades, many in vivo studies have been interested in the pulmonary effects of different classes of nanomaterials. It has been shown that some of them can induce toxic effects, essentially depending on their physico-chemical characteristics, but other studies did not identify such effects. Inflammation and oxidative stress are currently the two main mechanisms described to explain the observed toxicity. However, the exact underlying mechanism(s) still remain(s) unknown and autophagy could represent an interesting candidate. Autophagy is a physiological process in which cytoplasmic components are digested via a lysosomal pathway. It has been shown that autophagy is involved in the pathogenesis and the progression of human diseases, and is able to modulate the oxidative stress and pro-inflammatory responses. A growing amount of literature suggests that a link between nanomaterial toxicity and autophagy impairment could exist. In this review, we will first summarize what is known about the respiratory effects of nanomaterials and we will then discuss the possible involvement of autophagy in this toxicity. This review should help understand why autophagy impairment could be taken as a promising candidate to fully understand nanomaterials toxicity.
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Sund J, Palomäki J, Ahonen N, Savolainen K, Alenius H, Puustinen A. Phagocytosis of nano-sized titanium dioxide triggers changes in protein acetylation. J Proteomics 2014; 108:469-83. [PMID: 24972317 DOI: 10.1016/j.jprot.2014.06.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/04/2014] [Accepted: 06/10/2014] [Indexed: 01/24/2023]
Abstract
UNLABELLED Nano-sized titanium dioxide (nTiO2) is one of the most produced engineered nanomaterials and therefore carries a high risk for workplace exposure. In several nanosafety studies, exposure to nTiO2 has been shown to trigger inflammation in mice lung and to cause oxidative stress. Here, cytoplasmic proteome changes in human monocyte derived macrophages were investigated with two-dimensional difference gel electrophoresis (2D-DIGE) and mass spectrometry to evaluate the adverse cellular effects after exposure to different types of TiO2 nanoparticles (NPs). Both studied TiO2 NPs (rutile TiO2 with or without silica coating) evoked similar proteome alterations. The identified proteins were linked to metabolic homeostasis, cytoskeleton remodeling and oxidative stress. The abundances of chloride intracellular channel protein 1 and cathepsin D changed only after exposure to nTiO2 as compared to a coarse particle analog. Enrichment analysis revealed that 70% of the proteins with changed intensities contained known acetylation sites, and it was possible to confirm a significant induction of cytoplasmic protein acetylation after nTiO2 exposure. The course of the events during phagocytosis could account for the observed membrane maintenance, metabolic and cytoskeletal protein expression changes. Lysine acetylation of cytoplasmic proteins in macrophages is emerging as a major cell regulation mechanism after nTiO2 exposure. BIOLOGICAL SIGNIFICANCE While the amount of nanosafety research conducted in recent years has been constantly increasing, proteomics has not yet been utilized widely in this field. In addition, reversible protein post-translational modifications (PTMs) such as acetylation and phosphorylation have not been investigated in-depth in nanomaterial exposed cells. Proteome changes observed in nanomaterial exposed macrophages revealed active phagocytosis of the particles and provided new insights into underlying mechanisms of biological responses to nTiO2 exposures. Moreover, reversible protein acetylation might be a major cellular regulation event occurring in nanomaterial exposed cells.
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Affiliation(s)
- Jukka Sund
- Unit of Systems Toxicology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland; Nanosafety Research Centre, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland
| | - Jaana Palomäki
- Unit of Systems Toxicology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland; Nanosafety Research Centre, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland
| | - Niina Ahonen
- Unit of Systems Toxicology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland
| | - Kai Savolainen
- Nanosafety Research Centre, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland
| | - Harri Alenius
- Unit of Systems Toxicology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland; Nanosafety Research Centre, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland
| | - Anne Puustinen
- Unit of Systems Toxicology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland; Nanosafety Research Centre, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a b, FIN-00250 Helsinki, Finland.
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30
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Saito N, Haniu H, Usui Y, Aoki K, Hara K, Takanashi S, Shimizu M, Narita N, Okamoto M, Kobayashi S, Nomura H, Kato H, Nishimura N, Taruta S, Endo M. Safe clinical use of carbon nanotubes as innovative biomaterials. Chem Rev 2014; 114:6040-79. [PMID: 24720563 PMCID: PMC4059771 DOI: 10.1021/cr400341h] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Indexed: 02/06/2023]
Affiliation(s)
- Naoto Saito
- Institute
for Biomedical Sciences, Shinshu University, Asahi 3-1-1, Matsumoto 390-8621, Japan
| | - Hisao Haniu
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Yuki Usui
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
- Research Center for Exotic Nanocarbons, and Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Kaoru Aoki
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Kazuo Hara
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Seiji Takanashi
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Masayuki Shimizu
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Nobuyo Narita
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Masanori Okamoto
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Shinsuke Kobayashi
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Hiroki Nomura
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Hiroyuki Kato
- Department
of Orthopaedic Surgery, Shinshu University
School of Medicine, Asahi
3-1-1, Matsumoto 390-8621, Japan
| | - Naoyuki Nishimura
- R&D
Center, Nakashima Medical Co. Ltd., Haga 5322, Kita-ku, Okayama 701-1221, Japan
| | - Seiichi Taruta
- Research Center for Exotic Nanocarbons, and Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Morinobu Endo
- Research Center for Exotic Nanocarbons, and Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
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Application of vitamin E to antagonize SWCNTs-induced exacerbation of allergic asthma. Sci Rep 2014; 4:4275. [PMID: 24589727 PMCID: PMC3940970 DOI: 10.1038/srep04275] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 02/17/2014] [Indexed: 02/02/2023] Open
Abstract
The aggravating effects of zero-dimensional, particle-shaped nanomaterials on allergic asthma have been previously investigated, but similar possible effects of one-dimensional shaped nanomaterials have not been reported. More importantly, there are no available means to counteract the adverse nanomaterial effects to allow for their safe use. In this study, an ovalbumin (OVA)-sensitized rat asthma model was established to investigate whether single walled carbon nanotubes (SWCNTs) aggravate allergic asthma. The results showed that SWCNTs in rats exacerbated OVA-induced allergic asthma and that this exacerbation was counteracted by concurrent administration vitamin E. A mechanism involving the elimination of reactive oxygen species, downregulation of Th2 responses, reduced Ig production, and the relief of allergic asthma symptoms was proposed to explain the antagonistic effects of vitamin E. This work could provide a universal strategy to effectively protect people with allergic asthma from SWCNTs or similar nanomaterial-induced aggravating effects.
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Gernand JM, Casman EA. A meta-analysis of carbon nanotube pulmonary toxicity studies--how physical dimensions and impurities affect the toxicity of carbon nanotubes. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2014; 34:583-597. [PMID: 24024907 DOI: 10.1111/risa.12109] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This article presents a regression-tree-based meta-analysis of rodent pulmonary toxicity studies of uncoated, nonfunctionalized carbon nanotube (CNT) exposure. The resulting analysis provides quantitative estimates of the contribution of CNT attributes (impurities, physical dimensions, and aggregation) to pulmonary toxicity indicators in bronchoalveolar lavage fluid: neutrophil and macrophage count, and lactate dehydrogenase and total protein concentrations. The method employs classification and regression tree (CART) models, techniques that are relatively insensitive to data defects that impair other types of regression analysis: high dimensionality, nonlinearity, correlated variables, and significant quantities of missing values. Three types of analysis are presented: the RT, the random forest (RF), and a random-forest-based dose-response model. The RT shows the best single model supported by all the data and typically contains a small number of variables. The RF shows how much variance reduction is associated with every variable in the data set. The dose-response model is used to isolate the effects of CNT attributes from the CNT dose, showing the shift in the dose-response caused by the attribute across the measured range of CNT doses. It was found that the CNT attributes that contribute the most to pulmonary toxicity were metallic impurities (cobalt significantly increased observed toxicity, while other impurities had mixed effects), CNT length (negatively correlated with most toxicity indicators), CNT diameter (significantly positively associated with toxicity), and aggregate size (negatively correlated with cell damage indicators and positively correlated with immune response indicators). Increasing CNT N2 -BET-specific surface area decreased toxicity indicators.
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Affiliation(s)
- Jeremy M Gernand
- Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA, USA
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33
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The Significance and Insignificance of Carbon Nanotube-Induced Inflammation. FIBERS 2014. [DOI: 10.3390/fib2010045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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34
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Kato H, Nakamura A, Horie M. Behavior of surfactants in aqueous dispersions of single-walled carbon nanotubes. RSC Adv 2014. [DOI: 10.1039/c3ra45181j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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35
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Hussain S, Garantziotis S, Rodrigues-Lima F, Dupret JM, Baeza-Squiban A, Boland S. Intracellular signal modulation by nanomaterials. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 811:111-34. [PMID: 24683030 DOI: 10.1007/978-94-017-8739-0_7] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A thorough understanding of the interactions of nanomaterials with biological systems and the resulting activation of signal transduction pathways is essential for the development of safe and consumer friendly nanotechnology. Here we present an overview of signaling pathways induced by nanomaterial exposures and describe the possible correlation of their physicochemical characteristics with biological outcomes. In addition to the hierarchical oxidative stress model and a review of the intrinsic and cell-mediated mechanisms of reactive oxygen species (ROS) generating capacities of nanomaterials, we also discuss other oxidative stress dependent and independent cellular signaling pathways. Induction of the inflammasome, calcium signaling, and endoplasmic reticulum stress are reviewed. Furthermore, the uptake mechanisms can be of crucial importance for the cytotoxicity of nanomaterials and membrane-dependent signaling pathways have also been shown to be responsible for cellular effects of nanomaterials. Epigenetic regulation by nanomaterials, effects of nanoparticle-protein interactions on cell signaling pathways, and the induction of various cell death modalities by nanomaterials are described. We describe the common trigger mechanisms shared by various nanomaterials to induce cell death pathways and describe the interplay of different modalities in orchestrating the final outcome after nanomaterial exposures. A better understanding of signal modulations induced by nanomaterials is not only essential for the synthesis and design of safer nanomaterials but will also help to discover potential nanomedical applications of these materials. Several biomedical applications based on the different signaling pathways induced by nanomaterials are already proposed and will certainly gain a great deal of attraction in the near future.
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Affiliation(s)
- Salik Hussain
- Clinical Research Program, National Institute of Environmental Health Sciences (NIEHS), National Institute of Health (NIH), Research Triangle Park, NC, USA,
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36
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Jiang L, Kondo A, Shigeta M, Endoh S, Uejima M, Ogura I, Naito M. Evaluation of particles released from single-wall carbon nanotube/polymer composites with or without thermal aging by an accelerated abrasion test. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2014; 11:658-664. [PMID: 24628695 DOI: 10.1080/15459624.2014.902953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To provide data required for assessing the environmental health and safety risks of nanocomposites, abrasion-induced particle release from single-wall carbon nanotube (SWCNT)/polymer composites with or without thermal aging were evaluated by a shot blast system. First, overall composite weight loss (i.e., overall particle release) as a result of shot blasting was measured. Incorporating 5 wt% SWCNTs in polystyrene (PS) matrix was observed to reduce overall particle release by approximately 30% compared with pure PS. Heat treatment of the 5 wt% SWCNT/PS composites at 100°C for 10 days induced very slight change in overall particle release due to shot blasting. However, heat treatment at 350°C for 1 hr greatly deteriorated the abrasion resistance of the composites, enhancing overall particle release. Second, to verify the existence and form of SWCNTs released from the composites, released particles were observed by electron microscopy. Micron-sized particles with protruding SWCNTs and submicron-sized SWCNT clusters were observed in the particles released from the composites. Heat treatment of the composites at 350°C for 1 hr enhanced SWCNT release, which mainly formed clusters or rope-like bundles.
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Affiliation(s)
- Lin Jiang
- a Joining and Welding Research Institute , Osaka University , Osaka , Japan
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37
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Madl AK, Plummer LE, Carosino C, Pinkerton KE. Nanoparticles, lung injury, and the role of oxidant stress. Annu Rev Physiol 2013; 76:447-65. [PMID: 24215442 DOI: 10.1146/annurev-physiol-030212-183735] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The emergence of engineered nanoscale materials has provided significant advancements in electronic, biomedical, and material science applications. Both engineered nanoparticles and nanoparticles derived from combustion or incidental processes exhibit a range of physical and chemical properties that induce inflammation and oxidative stress in biological systems. Oxidative stress reflects the imbalance between the generation of reactive oxygen species and the biochemical mechanisms to detoxify and repair the damage resulting from reactive intermediates. This review examines current research on incidental and engineered nanoparticles in terms of their health effects on lungs and the mechanisms by which oxidative stress via physicochemical characteristics influences toxicity or biocompatibility. Although oxidative stress has generally been thought of as an adverse biological outcome, this review also briefly discusses some of the potential emerging technologies to use nanoparticle-induced oxidative stress to treat disease in a site-specific fashion.
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Affiliation(s)
- Amy K Madl
- Center for Health and the Environment, University of California, Davis, California 95616; ,
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Abstract
Carbon nanotubes (CNTs) consist of a family of carbon built nanoparticles, whose biological effects depend on their physical characteristics and other constitutive chemicals (impurities and functions attached). CNTs are considered the twenty first century material due to their unique physicochemical characteristics and applicability to industrial product. The use of these materials steadily increases worldwide and toxic outcomes need to be studied for each nanomaterial in depth to prevent adverse effects to humans and the environment. Entrance into the body is physical, and usually few nanoparticles enter the body; however, once there, they are persistent due to their limited metabolisms, so their removal is slow, and chronic cumulative health effects are studied. Oxidative stress is the main mechanism of toxicity but size, agglomeration, chirality as well as impurities and functionalization are some of the structural and chemical characteristic contributing to the CNTs toxicity outcomes. Among the many toxicity pathways, interference with cytoskeleton and fibrous mechanisms, cell signaling, membrane perturbations and the production of cytokines, chemokines and inflammation are some of the effects resulting from exposure to CNTs. The aim of this review is to offer an up-to-date scope of the effects of CNTs on biological systems with attention to mechanisms of toxicity.
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Affiliation(s)
- Yury Rodriguez-Yañez
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN, Mexico City, Mexico
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Kotchey GP, Gaugler JA, Kapralov AA, Kagan VE, Star A. Effect of antioxidants on enzyme-catalysed biodegradation of carbon nanotubes. J Mater Chem B 2013; 1:302-309. [PMID: 23626907 DOI: 10.1039/c2tb00047d] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The growing applications of carbon nanotubes (CNTs) inevitably increase the risk of exposure to this potentially toxic nanomaterial. In an attempt to address this issue, research has been implemented to study the biodegradation of CNTs. In particular, myeloperoxidase (MPO), an enzyme expressed by inflammatory cells of animals including humans, catalyse the degradation of oxidized carbon nanomaterials. While reactive intermediates generated by MPO efficiently degrade oxidized single-walled carbon nanotubes (o-SWCNTs); the exact mechanism of enzyme-catalysed biodegradation remains ambiguous. In this work, we tried to explain enzymatic oxidation in terms of redox potentials by employing competitive substrates for MPO such as chloride, which is oxidized by MPO to form a strong oxidant (hypochlorite), and antioxidants that have lower redox potentials than CNTs. Employing transmission electron microscopy, Raman spectroscopy, and vis-NIR absorption spectroscopy, we demonstrate that the addition of antioxidants, L-ascorbic acid and L-glutathione, with or without chloride significantly mitigates MPO-catalysed biodegradation of o-SWCNTs. This study focuses on a fundamental understanding of the mechanisms of enzymatic biodegradation of CNTs and the impact of antioxidants on these pathways.
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Affiliation(s)
- Gregg P Kotchey
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Patel HJ, Kwon S. Length-dependent effect of single-walled carbon nanotube exposure in a dynamic cell growth environment of human alveolar epithelial cells. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2013; 23:101-108. [PMID: 22854519 DOI: 10.1038/jes.2012.75] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2012] [Accepted: 06/11/2012] [Indexed: 06/01/2023]
Abstract
Despite the great use of nanomaterials for engineering and medical applications, nanomaterials may have adverse consequences by accidental exposure, because of their nanoscale size, composition and shape. Like many nanomaterials, carbon nanotubes (CNTs) have been used for many proven applications, but the size of the CNTs makes them more readily become airborne and can therefore create the risk of being inhaled by a worker. In this study, we evaluated single-walled CNT (SWCNT)-induced effects on cellular responses such as cell proliferation, inflammatory response and oxidative stress in dynamic cell growth condition. A dynamic cell growth environment was established to mimic the dynamic changes in the amount of circumferential and longitudinal expansion and contraction occurred during normal breathing movement in the lung. Two different length (short: outer diameter (OD) 1-2 nm, length 0.5-2 μm; long: OD 1-2 nm, length 5-30 μm) of SWCNTs were used at different exposure concentrations (5, 10 and 20 μg/ml) during the different exposure duration (24, 48 and 72 h). Dynamic environment facilitated altered interaction between SWCNTs and A549 monolayer. Cellular responses in dynamic condition were significantly different from those in static condition. Moreover, cellular responses were dependent on the length of SWCNTs both in static and dynamic cell growth conditions.
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Affiliation(s)
- Hemang J Patel
- Department of Biological Engineering, Utah State University, Logan, Utah 84322, USA
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Respiratory toxicities of nanomaterials -- a focus on carbon nanotubes. Adv Drug Deliv Rev 2012; 64:1694-9. [PMID: 22641117 DOI: 10.1016/j.addr.2012.05.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 05/15/2012] [Accepted: 05/21/2012] [Indexed: 02/02/2023]
Abstract
Carbon nanotubes (CNT) are emblematic nanomaterials, presenting unique physico-chemical properties, such as mechanical, thermal, or electrical conductivity, that have led to a large number of actual applications and uses, as well as (future) developments in aerospace, automobiles, nanoelectronic, or nanomedicine. CNT are currently used in many devices (computers, aircraft airframe, and sporting goods such as tennis rackets, bicycles, golf irons) and have also emerged as efficient drug delivery carriers in the biomedical and drug delivery fields[1]. Because of these actual and future applications, there's an increasing concern regarding the consequences that could result from human exposure to CNT, particularly at the respiratory level, since it represents a major route of exposure to nanomaterials. This review will highlight the advancement in the actual knowledge on lung toxicities of CNT, and try to better understand the underlying biological mechanisms, as well as the importance of physico-chemical determinants directly related to CNT characteristics.
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Huang G, Park JH, Cena LG, Shelton BL, Peters TM. Evaluation of Airborne Particle Emissions from Commercial Products Containing Carbon Nanotubes. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2012; 14:1231. [PMID: 23204914 PMCID: PMC3507461 DOI: 10.1007/s11051-012-1231-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The emission of the airborne particles from epoxy resin test sticks with different CNT loadings and two commercial products were characterized while sanding with three grit sizes and three disc sander speeds. The total number concentrations, respirable mass concentrations, and particle size number/mass distributions of the emitted particles were measured using a condensation particle counter, an optical particle counter, and a scanning mobility particle sizer. The emitted particles were sampled on a polycarbonate filter and analyzed using electron microscopy. The highest number concentrations (arithmetic mean = 4670 particles/cm(3)) were produced with coarse sandpaper, 2% (by weight) CNT test sticks and medium disc sander speed, whereas the lowest number concentrations (arithmetic mean = 92 particles/cm(3)) were produced with medium sandpaper, 2% CNT test sticks and slow disc sander speed. Respirable mass concentrations were highest (arithmetic mean = 1.01 mg/m(3)) for fine sandpaper, 2% CNT test sticks and medium disc sander speed and lowest (arithmetic mean = 0.20 mg/m(3)) for medium sandpaper, 0% CNT test sticks and medium disc sander speed. For CNT-epoxy samples, airborne particles were primarily micrometer-sized epoxy cores with CNT protrusions. No free CNTs were observed in airborne samples, except for tests conducted with 4% CNT epoxy. The number concentration, mass concentration, and size distribution of airborne particles generated when products containing CNTs are sanded depends on the conditions of sanding and the characteristics of the material being sanded.
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Affiliation(s)
- Guannan Huang
- Department of Occupational and Environmental Health, The University of Iowa, Iowa City, IA 52242, USA
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Naya M, Kobayashi N, Endoh S, Maru J, Honda K, Ema M, Tanaka J, Fukumuro M, Hasegawa K, Nakajima M, Hayashi M, Nakanishi J. In vivo genotoxicity study of single-wall carbon nanotubes using comet assay following intratracheal instillation in rats. Regul Toxicol Pharmacol 2012; 64:124-9. [PMID: 22735368 DOI: 10.1016/j.yrtph.2012.05.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 05/16/2012] [Accepted: 05/20/2012] [Indexed: 01/06/2023]
Abstract
The genotoxicity of single-wall carbon nanotubes (SWCNTs) was evaluated in vivo using the comet assay after intratracheal instillation in rats. The SWCNTs were instilled at a dosage of 0.2 or 1.0mg/kg body weight (single instillation group) and 0.04 or 0.2mg/kg body weight once a week for 5weeks (repeated instillation group). As a negative control, 1% Tween 80 was instilled in a similar manner. As a positive control, ethyl methanesulfonate (EMS) at 500mg/kg was administered once orally 3h prior to dissection. Histopathologically, inflammation in the lung was observed for all the SWCNTs in both single and repeated groups. In the comet assay, there was no increase in% tail DNA in any of the SWCNT-treated groups. In the EMS-treated groups, there was a significant increase in% tail DNA compared with the negative control group. The present study indicated that a single intratracheal instillation of SWCNTs (1.0mg/kg) or repeated intratracheal instillation (0.2mg/kg) once a week for five weeks induced a clear inflammatory response (hemorrhage in the alveolus, infiltration of alveolar macrophages and neutrophiles), but no DNA damage, in the lungs in rats. Under the conditions of the test, SWCNTs were not genotoxic in the comet assay following intratracheal instillation in rats.
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Affiliation(s)
- Masato Naya
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan.
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Shvedova AA, Pietroiusti A, Fadeel B, Kagan VE. Mechanisms of carbon nanotube-induced toxicity: focus on oxidative stress. Toxicol Appl Pharmacol 2012; 261:121-33. [PMID: 22513272 DOI: 10.1016/j.taap.2012.03.023] [Citation(s) in RCA: 294] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 03/29/2012] [Accepted: 03/30/2012] [Indexed: 12/23/2022]
Abstract
Nanotechnologies are emerging as highly promising technologies in many sectors in the society. However, the increasing use of engineered nanomaterials also raises concerns about inadvertent exposure to these materials and the potential for adverse effects on human health and the environment. Despite several years of intensive investigations, a common paradigm for the understanding of nanoparticle-induced toxicity remains to be firmly established. Here, the so-called oxidative stress paradigm is scrutinized. Does oxidative stress represent a secondary event resulting inevitably from disruption of biochemical processes and the demise of the cell, or a specific, non-random event that plays a role in the induction of cellular damage e.g. apoptosis? The answer to this question will have important ramifications for the development of strategies for mitigation of adverse effects of nanoparticles. Recent examples of global lipidomics studies of nanoparticle-induced tissue damage are discussed along with proteomics and transcriptomics approaches to achieve a comprehensive understanding of the complex and interrelated molecular changes in cells and tissues exposed to nanoparticles. We also discuss instances of non-oxidative stress-mediated cellular damage resulting from direct physical interference of nanomaterials with cellular structures.
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Affiliation(s)
- Anna A Shvedova
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, University of Rome Tor Vergata, Rome, Italy.
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Park EJ, Roh J, Kim SN, Kim Y, Han SB, Hong JT. CCR5 plays an important role in resolving an inflammatory response to single-walled carbon nanotubes. J Appl Toxicol 2012; 33:845-53. [PMID: 22438032 DOI: 10.1002/jat.2744] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/03/2012] [Accepted: 02/03/2012] [Indexed: 12/12/2022]
Abstract
Owing to the development of new materials and technology, the pollutants in the environment are becoming more varied and complex over time. In our previous study using ICR mice, we suggested that a single intratracheal instillation of single-walled carbon nanotubes (SWCNTs) induced early lung fibrosis and subchronic tissue damage. In the present study, to investigate the role of CCR5 in inflammatory responses to the uptake of SWCNTs, we compared BAL (Bronchoalveolar lavage) cell composition, cell cycles, cytokines, cell phenotypes, inflammatory response-related proteins, cell surface receptors and histopathology using CCR5 knockout (KO) and wild-type mice. Results showed that the distribution of neutrophils in BAL fluid significantly decreased in KO mice. The expression of apoptosis-related proteins including caspase-3, p53, phospho-p53, p21 and cleaved PARP, TGF βl and mesothelin markedly increased in KO mice compared with wild-type mice. Histopathological lesions were also more frequently noted in KO mice. Moreover, the secretion of IL-13 and IL-17 with IL-6 significantly increased in KO mice compared with wild-type mice, whereas that of IL-12 significantly decreased in comparison to wild-type mice. The distribution of B cells and CD8+ T cells was predominant in the inflammatory responses in KO mice, whereas that of T cells and CD4+ T cells was predominant in the inflammatory responses in wild-type mice. Furthermore, the expression of CCR4 and CCR7 significantly increased in KO mice. Based on these results, we suggest that the absence of CCR5 delays the resolution of inflammatory responses triggered by SWCNTs inflowing into the lungs and shifts inflammatory response for SWCNTs clearance from Th1-type to Th2-type.
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Affiliation(s)
- Eun-Jung Park
- Department of Molecular Science and Technology, Ajou University, Suwon, 443-749, Gyeonggi-Do, Korea.
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Naya M, Kobayashi N, Mizuno K, Matsumoto K, Ema M, Nakanishi J. Evaluation of the genotoxic potential of single-wall carbon nanotubes by using a battery of in vitro and in vivo genotoxicity assays. Regul Toxicol Pharmacol 2011; 61:192-8. [DOI: 10.1016/j.yrtph.2011.07.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 07/21/2011] [Accepted: 07/21/2011] [Indexed: 01/29/2023]
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Andujar P, Lanone S, Brochard P, Boczkowski J. Respiratory effects of manufactured nanoparticles. Rev Mal Respir 2011; 28:e66-75. [PMID: 22099416 DOI: 10.1016/j.rmr.2011.09.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2008] [Accepted: 02/16/2009] [Indexed: 10/16/2022]
Abstract
Nanotechnology is the set of techniques used to engineer, characterize, and produce materials that have at least one dimension within the nanoscale. These nanomaterials, or nanoobjects, include nanoparticles and nanotubes. As dictated by the laws of quantum physics, a size within the nanoscale results in unique physicochemical properties and distinctive behaviors. Nanotechnology has a host of applications in fields ranging from cosmetology to the industry and medicine. The production and use of nanomaterials are expanding at a brisk pace. However, concerns are emerging about the potential health effects of nanoparticles in the short and long terms. These concerns are rooted in data on the harmful health effects of micrometric airborne particulate matter. Conceivably, these adverse effects might be amplified when the particles are within the nanoscale. This article is a nonexhaustive overview of current data on the penetration, deposition, translocation, and elimination of inhaled nanoparticles and on the respiratory effects of metallic nanoparticles (with special attention to titanium dioxide) and carbon nanotubes. Both in vivo and in vitro studies consistently found biological effects of nanoparticles on the respiratory system, including oxidative stress generation, proinflammatory and prothrombotic effects, pulmonary fibrosis and emphysema, and DNA damage. Improved knowledge of the potential biological effects of nanoparticles is needed to guide preventive strategies for the workplace and/or general population if needed.
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Affiliation(s)
- P Andujar
- Inserm, U955, 94000 Créteil, France.
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Kobayashi N, Naya M, Mizuno K, Yamamoto K, Ema M, Nakanishi J. Pulmonary and systemic responses of highly pure and well-dispersed single-wall carbon nanotubes after intratracheal instillation in rats. Inhal Toxicol 2011; 23:814-28. [PMID: 22004357 PMCID: PMC3251003 DOI: 10.3109/08958378.2011.614968] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present study was conducted to assess the pulmonary and systemic responses in rats after intratracheal instillation of highly pure, well-dispersed, and well-characterized SWCNTs. Exposure to SWCNTs up to 2 mg/kg did not produce mortality, changes in clinical signs, or body weights during the observation period. Dose-dependent changes were observed in the lung weight, BALF inflammatory cells, and biochemical parameters such as LDH value, protein content, IL-1β and IL-6 activity, and histopathology. In the 0.04 mg/kg SWCNT-exposed group, almost no changes were observed during the observation period. In the 0.2 mg/kg SWCNT-exposed group, pulmonary inflammatory responses were observed after instillation. In the 1 mg/kg and 2 mg/kg SWCNT-exposed group, acute lung inflammation and subsequent granuloma accompanied by increased lung weights were observed. Furthermore, the histopathological findings in the lungs of rats exposed to SWCNTs showed inflammatory responses related with the vital reaction to the foreign substance that was instilled intratracheally, and there were no fibrosis, atypical lesion, or tumor-related findings even at the highest dose (2 mg/kg) of SWCNT-exposed groups up to 6 months after instillation. For all groups, histopathological changes due to the instillation exposure of SWCNTs were observed only in the lungs and lung-associated lymph nodes and not in the other tissues examined (i.e. the liver, kidney, spleen, and cerebrum).
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Affiliation(s)
- Norihiro Kobayashi
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
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Wang J, Sun P, Bao Y, Dou B, Song D, Li Y. Vitamin E renders protection to PC12 cells against oxidative damage and apoptosis induced by single-walled carbon nanotubes. Toxicol In Vitro 2011; 26:32-41. [PMID: 22020378 DOI: 10.1016/j.tiv.2011.10.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Revised: 08/14/2011] [Accepted: 10/06/2011] [Indexed: 12/26/2022]
Abstract
Single-walled carbon nanotubes (SWCNTs) are potential candidates in many biomedical applications. However, many reports demonstrated its potential toxicity to human and other biological systems. Our study has demonstrated that SWCNTs can induce apoptosis and oxidative damage on PC12 cells, an in vitro model of neuronal cells. In the present study, we for the first time investigated the neuroprotective effects of vitamin E (VE) on SWCNT-induced neurotoxicity in cultured PC12 cells. Vitamin E (0.01-2mM) increased PC12 cells viability and significantly attenuated SWCNTs-induced apoptotic cell death in a time and dose-dependent manner, as demonstrated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, lactate dehydrogenase (LDH) release and morphological observation. The presence of VE inhibited the formation of reactive oxygen species (ROS), decreased the level of lipid peroxide, elevated the level of glutathione (GSH) and activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT). Additionally, VE blocked the reduction in the mitochondrial membrane potential and the activation of caspase-3. VE prevented the down-regulation of Bcl-2 expression and up-regulation of Bax expression induced by SWCNTs in PC12 cells. In summary, VE might protect PC12 cells from the injury induced by SWCNTs through the down-regulation of oxidative stress and prevention of mitochondrial-mediated apoptosis.
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Affiliation(s)
- Jingyun Wang
- School of Life Science and Biotechnology, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China.
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Biological toxicity and inflammatory response of semi-single-walled carbon nanotubes. PLoS One 2011; 6:e25892. [PMID: 22016783 PMCID: PMC3189226 DOI: 10.1371/journal.pone.0025892] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 09/12/2011] [Indexed: 02/03/2023] Open
Abstract
The toxicological studies on carbon nanotubes (CNTs) have been urgently needed from the emerging diverse applications of CNTs. Physicochemical properties such as shape, diameter, conductance, surface charge and surface chemistry of CNTs gained during manufacturing processes play a key role in the toxicity. In this study, we separated the semi-conductive components of SWCNTs (semi-SWCNTs) and evaluated the toxicity on days 1, 7, 14 and 28 after intratracheal instillation in order to determine the role of conductance. Exposure to semi-SWCNTs significantly increased the growth of mice and significantly decreased the relative ratio of brain weight to body weight. Recruitment of monocytes into the bloodstream increased in a time-dependent manner, and significant hematological changes were observed 28 days after exposure. In the bronchoalveolar lavage (BAL) fluid, secretion of Th2-type cytokines, particularly IL-10, was more predominant than Th1-type cytokines, and expression of regulated on activation normal T cell expressed and secreted (RANTES), p53, transforming growth factor (TGF)-β, and inducible nitric oxide synthase (iNOS) increased in a time-dependent manner. Fibrotic histopathological changes peaked on day 7 and decreased 14 days after exposure. Expression of cyclooxygenase-2 (COX-2), mesothelin, and phosphorylated signal transducer and activator of transcription 3 (pSTAT3) also peaked on day 7, while that of TGF-β peaked on days 7 and 14. Secretion of histamine in BAL fluid decreased in a time-dependent manner. Consequently, we suggest that the brain is the target organ of semi-SWCNTs brought into the lung, and conductance as well as length may be critical factors affecting the intensity and duration of the inflammatory response following SWCNT exposure.
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