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Brown S, Evans SJ, Burgum MJ, Meldrum K, Herridge J, Akinbola B, Harris LG, Jenkins R, Doak SH, Clift MJD, Wilkinson TS. An In Vitro Model to Assess Early Immune Markers Following Co-Exposure of Epithelial Cells to Carbon Black (Nano)Particles in the Presence of S. aureus: A Role for Stressed Cells in Toxicological Testing. Biomedicines 2024; 12:128. [PMID: 38255233 PMCID: PMC10813740 DOI: 10.3390/biomedicines12010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/21/2023] [Accepted: 12/25/2023] [Indexed: 01/24/2024] Open
Abstract
The exposure of human lung and skin to carbon black (CB) is continuous due to its widespread applications. Current toxicological testing uses 'healthy' cellular systems; however, questions remain whether this mimics the everyday stresses that human cells are exposed to, including infection. Staphylococcus aureus lung and skin infections remain prevalent in society, and include pneumonia and atopic dermatitis, respectively, but current in vitro toxicological testing does not consider infection stress. Therefore, investigating the effects of CB co-exposure in 'stressed' infected epithelial cells in vitro may better approximate true toxicity. This work aims to study the impact of CB exposure during Staphylococcus aureus infection stress in A549 (lung) and HaCaT (skin) epithelial cells. Physicochemical characterisation of CB confirmed its dramatic polydispersity and potential to aggregate. CB significantly inhibited S. aureus growth in cell culture media. CB did not induce cytokines or antimicrobial peptides from lung and skin epithelial cells, when given alone, but did reduce HaCaT and A549 cell viability to 55% and 77%, respectively. In contrast, S. aureus induced a robust interleukin (IL)-8 response in both lung and skin epithelial cells. IL-6 and human beta defensin (hβD)-2 could only be detected when cells were stimulated with S. aureus with no decreases in cell viability. However, co-exposure to CB (100 µg/mL) and S. aureus resulted in significant inhibition of IL-8 (compared to S. aureus alone) without further reduction in cell viability. Furthermore, the same co-exposure induced significantly more hβD-2 (compared to S. aureus alone). This work confirms that toxicological testing in healthy versus stressed cells gives significantly different responses. This has significant implications for toxicological testing and suggests that cell stresses (including infection) should be included in current models to better represent the diversity of cell viabilities found in lung and skin within a general population. This model will have significant application when estimating CB exposure in at-risk groups, such as factory workers, the elderly, and the immunocompromised.
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Affiliation(s)
- Scott Brown
- Microbiology and Infectious Disease, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK
| | - Stephen J. Evans
- In Vitro Toxicology Group, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK (M.J.D.C.)
| | - Michael J. Burgum
- In Vitro Toxicology Group, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK (M.J.D.C.)
| | - Kirsty Meldrum
- In Vitro Toxicology Group, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK (M.J.D.C.)
| | - Jack Herridge
- Microbiology and Infectious Disease, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK
| | - Blessing Akinbola
- Microbiology and Infectious Disease, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK
| | - Llinos G. Harris
- Microbiology and Infectious Disease, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK
| | - Rowena Jenkins
- Microbiology and Infectious Disease, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK
| | - Shareen H. Doak
- In Vitro Toxicology Group, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK (M.J.D.C.)
| | - Martin J. D. Clift
- In Vitro Toxicology Group, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK (M.J.D.C.)
| | - Thomas S. Wilkinson
- Microbiology and Infectious Disease, Institute of Life Science, Swansea University Medical School (SUMS), Swansea SA2 8PP, UK
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Asai Y, Nadai M, Katoh M. The Effect of Single-Walled Carbon Nanotubes on UDP-Glucuronosyltransferase 1A Activity in Human Liver. Biol Pharm Bull 2022; 45:446-451. [DOI: 10.1248/bpb.b21-00845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yuki Asai
- Pharmaceutics, Faculty of Pharmacy, Meijo University
| | | | - Miki Katoh
- Pharmaceutics, Faculty of Pharmacy, Meijo University
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Iron-Rich Magnetic Coal Fly Ash Particles Induce Apoptosis in Human Bronchial Cells. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10238368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Svalbard is an arctic archipelago where coal mining generates all electricity via the local coal-fired power station. Coal combustion produces a waste product in the form of particulate matter (PM) coal fly ash (CFA), derived from incombustible minerals present in the feed coal. PM ≤10 µm (diameter) may be “inhaled” into the human respiratory system, and particles ≤2.5 µm may enter the distal alveoli to disrupt normal pulmonary functions and trigger disease pathways. This study discovered that Svalbard CFA contained unusually high levels of iron-rich magnetic minerals that induced adverse effects upon human lungs cells. Iron is a well-characterised driver of reactive oxygen species (ROS) generation, a driving force for cell death and disease. CFA physicochemical characterisation showed non-uniform particle morphologies indicative of coal burnt at inefficient combustion temperatures. The bioreactivity (ROS generation) of PM2.5/10 fractions was measured using plasmid scission assay (PSA, DNA damage) and haemolysis assays (erythrocyte lysis), with PM2.5 CFA showing significant bioreactivity. CFA leached in mild acid caused a significant increase in toxicity, which could occur in CFA waste-stores. The CFA and leachates were exposed to a surrogate model of human bronchial epithelia that confirmed that CFA induced apoptosis in bronchial cells. This study shows that CFA containing magnetic iron-rich minerals mediated adverse reactions in the human lung, and thus CFA should be considered to be an environmental inhalation hazard.
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Dai J, Tao L, Shi C, Yang S, Li D, Sheng J, Tian Y. Fermentation Improves Calcium Bioavailability in Moringa oleifera leaves and Prevents Bone Loss in Calcium-deficient Rats. Food Sci Nutr 2020; 8:3692-3703. [PMID: 32724632 PMCID: PMC7382168 DOI: 10.1002/fsn3.1653] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/22/2020] [Accepted: 04/29/2020] [Indexed: 11/21/2022] Open
Abstract
Nowadays, there is an increasing demand of healthier plant calcium supplements. Moringa oleifera leaves (MOL) are rich in calcium and thus are promising candidates for developing efficient calcium supplements. Here, using fermentation-based approaches, we developed a Moringa oleifera leaf ferment (MOLF), which contents higher levels of calcium. The therapeutic potential of the MOLF was also examined both in vitro and in vivo. Nine lactic acid bacteria and four yeasts were tested for better fermentation of MOL. Calcium-deficient rats were used for evaluating the therapeutic effects of MOLF. The results of liquid fermentation showed that the mixture of Lactobacillus reuteri, Lactobacillus acidophilus , and Candida utilis elevated the content of MOL calcium most strikingly, with the content of calcium increased nearly 2.4-fold (from 2.08% to 4.90%). The resulting MOLF was then subjected to cell experiments and animal experiments. The results showed that calcium absorption in Caco-2 cells in MOLF group was higher than that in CaCl2 group significantly. Interestingly, in calcium-deficient rats, MOLF treatment significantly increased the thickness of cortical bone, rat body weight, wet weight of the femur, and the femur bone density, whereas it decreased osteoclast numbers. These results indicate that microbial fermentation increased calcium bioavailability of MOL, promote the growth and development of calcium-deficient rats, bone calcium deposition, and bone growth; enhance bone strength; reduce bone resorption; and prevent calcium deficiency.
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Affiliation(s)
- Jiahe Dai
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
| | - Liang Tao
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
| | - Chongyin Shi
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
| | - Shuwen Yang
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
| | - Depeng Li
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
| | - Jun Sheng
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
- Yunnan Provincial Key Laboratory of Biological Big DataYunnan Agricultural UniversityKunmingChina
| | - Yang Tian
- College of Food Science and TechnologyYunnan Agricultural UniversityKunmingChina
- Yunnan Provincial Key Laboratory of Biological Big DataYunnan Agricultural UniversityKunmingChina
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Hou L, Guan S, Jin Y, Sun W, Wang Q, Du Y, Zhang R. Cell metabolomics to study the cytotoxicity of carbon black nanoparticles on A549 cells using UHPLC-Q/TOF-MS and multivariate data analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134122. [PMID: 31505349 DOI: 10.1016/j.scitotenv.2019.134122] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/30/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
Carbon black nanoparticles (CBNPs) are core component of fine particulate matter (PM2.5) in the atmosphere. It was reported that the particle in the atmosphere with smaller size and the larger the specific surface area are easier to reach the deep respiratory tract or even the alveoli through the respiratory barrier and cause lung injury. Therefore, it has been believed that ultrafine or nanometer particles with more toxic than those with larger particle sizes. Moreover, it was confirmed that CBNPs could induce inflammation, oxidative stress and changes in cell signaling and gene expression in mammalian cells and organs. However, the cytotoxicity mechanism of them has been uncertain so far. The aim of the present study was to explore the underlying mechanism of cytotoxicity induced by CBNPs on A549 cells. In the current research, the viabilities of A549 cells were detected by Cell Counting Kit-8 (CCK-8) assay. The further metabolomics studies were conducted to detect the cytotoxic effect of CBNPs on A549 cells with an IC50 value of 70 μg/mL for 48 h. Potential differential compounds were identified and quantified using a novel on-line acquisition method based on ultra-liquid chromatography quadrupole time-of-flight mass spectrometry(UHPLC-Q-TOF/MS). The cytotoxicity mechanism of CBNPs on A549 cells was evaluated by multivariate data analysis and statistics. As a result, a total of 32 differential compounds were identified between CBNPs exposure and control groups. In addition, pathway analysis showed the metabolic changes were involved in the tricarboxylic acid (TCA) cycle, alanine, aspartate and glutamate metabolism, histidine metabolism and so on. It is also suggested that CBNPs may induce cytotoxicity by affecting the normal process of energy metabolism and disturbing several vital signaling pathways and finally induce cell apoptosis.
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Affiliation(s)
- Ludan Hou
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei 050017, PR China
| | - Shuai Guan
- The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China
| | - Yiran Jin
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei 050017, PR China; The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China
| | - Wenjing Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei 050017, PR China
| | - Qiao Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei 050017, PR China
| | - Yingfeng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei 050017, PR China.
| | - Rong Zhang
- Department of Occupational and Environmental Health, The School of Public Health, Hebei Medical University, Shijiazhuang, Hebei 050017, PR China
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6
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Du Y, Hou L, Chu C, Jin Y, Sun W, Zhang R. Characterization of serum metabolites as biomarkers of carbon black nanoparticles-induced subchronic toxicity in rats by hybrid triple quadrupole time-of-flight mass spectrometry with non-targeted metabolomics strategy. Toxicology 2019; 426:152268. [PMID: 31437482 DOI: 10.1016/j.tox.2019.152268] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/09/2019] [Accepted: 08/16/2019] [Indexed: 12/27/2022]
Abstract
Carbon black nanoparticles (CBNPs) are one of atmospheric particles components and have been closely related with a series of lung diseases. It can reach the depths of the respiratory tract or even alveolar more easily than those micro-particles. Although some of its toxicities have been confirmed in animals or human bodies, the subchronic toxicity mechanism of CBNPs has been uncertain so far. Therefore, it is very necessary to establish a novel method and clarify the mechanism of subchronic toxicity caused by concentration adjustments of small molecule metabolites in vivo. In animal experiments, CB exposure, recovery and control group were set up. The concentration of CBNPs in chamber was 30.06 ± 4.42 mg/m3. We developed a UHPLC-Q-TOF-MS/MS-based non-targeted metabolomic analysis strategy to analyze serum samples of rats. Then, differential metabolites in serum were found by multivariate data analysis and 39 potential biomarkers were identified. It was showed that main metabolic pathways associated with CBNPs exposure were hormones metabolism, amino acid metabolism, nucleotide metabolism and lipid metabolism. It is worth noting that long-term exposure to CBNPs had the greatest impact on steroid hormones biosynthesis so that the risk of infertility could increase. The results provided a new mechanistic insight into the metabolic alterations owing to CBNPs induced subchronic toxicity.
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Affiliation(s)
- Yingfeng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, 050017, PR China
| | - Ludan Hou
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, 050017, PR China
| | - Chen Chu
- Department of Occupational and Environmental Health, the School of Public Health, Hebei Medical University, Shijiazhuang, Hebei, 050017, PR China
| | - Yiran Jin
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, 050017, PR China; The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050000, PR China
| | - Wenjing Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, 050017, PR China
| | - Rong Zhang
- Department of Occupational and Environmental Health, the School of Public Health, Hebei Medical University, Shijiazhuang, Hebei, 050017, PR China.
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7
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Zhang R, Zhang X, Gao S, Liu R. Assessing the in vitro and in vivo toxicity of ultrafine carbon black to mouse liver. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:1334-1341. [PMID: 30577125 DOI: 10.1016/j.scitotenv.2018.11.295] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
The increasing presence of nanomaterials in commercial products makes large quantities of nanoparticles reach the environment intentionally or accidentally. Their ability to be cleared from lung to stomach and then translocate into blood circulation suggests they may cause effects on the organs and cells of the organism. In this study, we characterized the dispersity of UFCB (ultrafine carbon black, FW200) in the complete medium and investigated the toxicity of FW200 to mouse hepatocytes and the liver both in vitro and in vivo. FW200 dispersed homogeneously in the complete medium with an average size at around 100 nm. In vitro, FW200 induced apparent cytotoxicity in the hepatocytes with the level of oxidative stress, apoptosis and the viability of hepatocytes changed by approximately 30%. The intracellular catalase (CAT) activity was stimulated by FW200 to a higher level than the control group. In vivo, the 7-week mice were exposed to FW200 (10 mg/kg body weight) by oral administration for six days. The liver was collected and used for histopathological analysis. In our findings, the 13 nm carbon black nanoparticle was proved to induce acute inflammation and apoptosis in the liver. The particles were also proved to have a damage to central veins and architecture of the hepatocytes. These findings suggest that the carbon black nanoparticle could cause a negative effect at both the cellular and organism level and unearthed the potential effects of carbon black nanoparticles on animals and human.
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Affiliation(s)
- Rui Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Xun Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Sichen Gao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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8
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Wu H, Chen M, Shang M, Li X, Mu K, Fan S, Jiang S, Li W. Insights into the binding behavior of bovine serum albumin to black carbon nanoparticles and induced cytotoxicity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 200:51-57. [PMID: 29660682 DOI: 10.1016/j.saa.2018.04.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 03/31/2018] [Accepted: 04/05/2018] [Indexed: 06/08/2023]
Abstract
Black carbon (BC) is a main component of particulate matter (PM2.5). Due to their small size (<100nm), inhaled ultrafine BC nanoparticles may penetrate the lung alveoli, where they interact with surfactant proteins and lipids, causing more serious damage to human health. Here, BC was analyzed to investigate the binding mechanism of its interaction with protein and induction of cytotoxicity changes. The binding process and protein conformation between BC and a serum protein (bovine serum albumin, BSA) were monitored by using a fluorescence quenching technique and UV-vis absorption, Fourier transform infrared (FTIR) and circular dichroism (CD) spectroscopies. The experimental results revealed that the fluorescence quenching of BSA induced by BC was a static quenching process and the hydrophobic force played the critical role in the interaction. The native conformation of BSA on the BC surface was slightly disturbed but obvious structural unfolding of the secondary structure did not occur. In the cytotoxicity study, BC nanoparticles with low concentrations exhibited strong toxicity towards BEAS-2B cells. However, the toxicity of BC nanoparticles could be mitigated by the presence of BSA. Therefore, proteins in biological fluids likely reduce the toxic effect of BC on human health. These findings delineated the binding mechanism and the toxicity between BC and the BSA-BC system, contributing to the understanding of the biological effects of BC exposure on human health in polluted atmospheres.
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Affiliation(s)
- Hai Wu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China.
| | - Miaomiao Chen
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Mengting Shang
- Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Xiang Li
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Kui Mu
- Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Suhua Fan
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Shuanglin Jiang
- Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Wenyong Li
- Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, Fuyang Normal University, Fuyang, Anhui 236037, PR China.
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Asai Y, Sakakibara Y, Inoue R, Inoue R, Nadai M, Katoh M. Effect of single-walled carbon nanotubes on cytochrome P450 activity in human liver microsomes in vitro. Biopharm Drug Dispos 2018; 39:275-279. [PMID: 29719052 DOI: 10.1002/bdd.2133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/22/2018] [Accepted: 03/28/2018] [Indexed: 11/06/2022]
Abstract
Single-walled carbon nanotubes (SWCNTs) are made from a rolled single sheet of graphene with a diameter in the nanometer range. SWCNTs are potential carriers for drug delivery systems because antibodies or drugs can be loaded on their surface; however, their effect on the activities of cytochrome P450 (CYP) remains unclear. The aim of this study was to investigate the effect of two kinds of SWCNTs with different lengths (FH-P- and SO-SWCNTs) on human CYP activity. In addition, other nano-sized carbon materials, such as carbon black, fullerene-C60 , and fullerene-C70 were also evaluated to compare their effects on CYP activities. Ten CYP substrates (phenacetin, coumarin, bupropion, paclitaxel, tolbutamide, S-mephenytoin, dextromethorphan, chlorzoxazone, midazolam, and testosterone) were used. Testosterone 6β-hydroxylation and midazolam 1'-hydroxylation, which are catalysed by both CYP3A4 and CYP3A5 in liver microsomes, were decreased by 25% and 45%, respectively, in the presence of 0.1 mg/ml SO-SWCNT. Dextromethorphan O-demethylation, which is catalysed mainly by CYP2D6, was decreased by 40% in the presence of SO-SWCNT. Other CYP activities, however, were not attenuated by SO-SWCNT. FH-P-SWCNT, carbon black, fullerene-C60 , and fullerene-C70 at 0.1 mg/ml had no effect on CYP activities. The Ki values for testosterone 6β-hydroxylation, midazolam 1'-hydroxylation, and dextromethorphan O-demethylation in liver microsomes were 136, 34, and 56 μg/ml, respectively. SO-SWCNT was determined to be a competitive inhibitor of CYP3A4, CYP3A5, and CYP2D6. These results suggest that the effect of SO-SWCNT differs among CYP isoforms, and that the inhibition potency depends on the physicochemical properties of the nanocarbons.
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Affiliation(s)
- Yuki Asai
- Pharmaceutics, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Yukiko Sakakibara
- Pharmaceutics, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Rina Inoue
- Pharmaceutics, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Rikako Inoue
- Pharmaceutics, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Masayuki Nadai
- Pharmaceutics, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Miki Katoh
- Pharmaceutics, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
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Roos CI, Scott AC, Belcher CM, Chaloner WG, Aylen J, Bird RB, Coughlan MR, Johnson BR, Johnston FH, McMorrow J, Steelman T. Living on a flammable planet: interdisciplinary, cross-scalar and varied cultural lessons, prospects and challenges. Philos Trans R Soc Lond B Biol Sci 2017; 371:rstb.2015.0469. [PMID: 27216517 DOI: 10.1098/rstb.2015.0469] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2016] [Indexed: 11/12/2022] Open
Abstract
Living with fire is a challenge for human communities because they are influenced by socio-economic, political, ecological and climatic processes at various spatial and temporal scales. Over the course of 2 days, the authors discussed how communities could live with fire challenges at local, national and transnational scales. Exploiting our diverse, international and interdisciplinary expertise, we outline generalizable properties of fire-adaptive communities in varied settings where cultural knowledge of fire is rich and diverse. At the national scale, we discussed policy and management challenges for countries that have diminishing fire knowledge, but for whom global climate change will bring new fire problems. Finally, we assessed major fire challenges that transcend national political boundaries, including the health burden of smoke plumes and the climate consequences of wildfires. It is clear that to best address the broad range of fire problems, a holistic wildfire scholarship must develop common agreement in working terms and build across disciplines. We must also communicate our understanding of fire and its importance to the media, politicians and the general public.This article is part of the themed issue 'The interaction of fire and mankind'.
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Affiliation(s)
- Christopher I Roos
- Department of Anthropology, Southern Methodist University, Dallas, TX 75275, USA
| | - Andrew C Scott
- Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Claire M Belcher
- wildFIRE Lab, Hatherly Laboratories, University of Exeter, Exeter EX4 4PS, UK
| | - William G Chaloner
- Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Jonathan Aylen
- Manchester Business School, University of Manchester, Manchester M13 9PL, UK
| | - Rebecca Bliege Bird
- Department of Anthropology, Pennsylvania State University, University Park, PA 16802, USA
| | - Michael R Coughlan
- Department of Anthropology, University of Georgia, Athens, GA 30602, USA
| | - Bart R Johnson
- Department of Landscape Architecture, University of Oregon, Eugene, OR 97401, USA
| | - Fay H Johnston
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7000, Australia
| | - Julia McMorrow
- School of Environment, Education, and Development, University of Manchester, Manchester M13 9PL, UK
| | - Toddi Steelman
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5C8
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Wang X, Gao A, Chen Y, Zhang X, Li S, Chen Y. Preparation of cucumber seed peptide-calcium chelate by liquid state fermentation and its characterization. Food Chem 2017; 229:487-494. [DOI: 10.1016/j.foodchem.2017.02.121] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 02/16/2017] [Accepted: 02/24/2017] [Indexed: 01/30/2023]
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12
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Juang YM, Chien HJ, Yang CY, Yeh HC, Cheng TJ, Lai CC. Comparative Proteomic Analysis of Rat Bronchoalveolar Lavage Fluid after Exposure to Zinc Oxide Nanoparticles. Mass Spectrom (Tokyo) 2017; 6:S0066. [PMID: 28573081 DOI: 10.5702/massspectrometry.s0066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 01/19/2017] [Indexed: 11/23/2022] Open
Abstract
Zinc oxide nanoparticles (ZnO NPs) are one of the most widely used nanomaterials in consumer products and industrial applications. As a result of all these uses, this has raised concerns regarding their potential toxicity. We previously found that candidate markers of idiopathic pulmonary fibrosis and lung cancer were significantly up-regulated in rat bronchoalveolar lavage fluid (BALF) following exposure to ZnO NPs by using a liquid chromatography (LC)-based proteomic approach. To achieve comprehensive protein identification analysis, we conducted the two-dimensional gel electrophosis (2-DE)-based proteomic workflow to analyze the differences in BALF proteins from rats that had been exposed to a high dose of 35 nm ZnO NPs. A total of 31 differentially expressed protein spots were excised from the gels and analyzed by nanoLC-tandem mass spectrometry (MS/MS). Gene ontology (GO) annotation of these proteins showed that most of the differentially expressed proteins were involved in response to stimulus and inflammatory response processes. Moreover, pulmonary surfactant-associated protein D and gelsolin, biomarkers of idiopathic pulmonary fibrosis, were significantly up-regulated in rat BALF after ZnO NPs exposure (2.42- and 2.84-fold, respectively). The results obtained from this present study could provide a complementary consequence with our previous study and contribute to a better understanding of the molecular mechanisms involved in ZnO NP-induced lung disorders.
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Affiliation(s)
- Yu-Min Juang
- Institute of Molecular Biology, National Chung Hsing University
| | - Han-Ju Chien
- Institute of Molecular Biology, National Chung Hsing University
| | - Cheng-Yu Yang
- Institute of Molecular Biology, National Chung Hsing University
| | - Hsiao-Chien Yeh
- Institute of Molecular Biology, National Chung Hsing University
| | - Tsun-Jen Cheng
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University
| | - Chien-Chen Lai
- Institute of Molecular Biology, National Chung Hsing University.,Graduate Institute of Chinese Medical Science, China Medical University.,Rong Hsing Research Center for Translational Medicine, National Chung Hsing University
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Pan CH, Chuang KJ, Chen JK, Hsiao TC, Lai CH, Jones TP, BéruBé KA, Hong GB, Ho KF, Chuang HC. Characterization of pulmonary protein profiles in response to zinc oxide nanoparticles in mice: a 24-hour and 28-day follow-up study. Int J Nanomedicine 2015; 10:4705-16. [PMID: 26251593 PMCID: PMC4524458 DOI: 10.2147/ijn.s82979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Although zinc oxide nanoparticles (ZnONPs) are recognized to cause systemic disorders, little is known about the mechanisms that underlie the time-dependent differences that occur after exposure. The objective of this study was to investigate the mechanistic differences at 24 hours and 28 days after the exposure of BALB/c mice to ZnONPs via intratracheal instillation. An isobaric tag for the relative and absolute quantitation coupled with liquid chromatography/tandem mass spectrometry was used to identify the differential protein expression, biological processes, molecular functions, and pathways. A total of 18 and 14 proteins displayed significant changes in the lung tissues at 24 hours and 28 days after exposure, respectively, with the most striking changes being observed for S100-A9 protein. Metabolic processes and catalytic activity were the main biological processes and molecular functions, respectively, in the responses at the 24-hour and 28-day follow-up times. The glycolysis/gluconeogenesis pathway was continuously downregulated from 24 hours to 28 days, whereas detoxification pathways were activated at the 28-day time-point after exposure. A comprehensive understanding of the potential time-dependent effects of exposure to ZnONPs was provided, which highlights the metabolic mechanisms that may be important in the responses to ZnONP.
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Affiliation(s)
- Chih-Hong Pan
- Institute of Occupational Safety and Health, Council of Labor Affairs, Executive Yuan, Taiwan ; School of Public Health, National Defense Medical Center, Taipei Medical University, Taipei, Taiwan
| | - Kai-Jen Chuang
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan ; Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jen-Kun Chen
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan
| | - Ta-Chih Hsiao
- Graduate Institute of Environmental Engineering, National Central University, Taoyuan, Taiwan
| | - Ching-Huang Lai
- School of Public Health, National Defense Medical Center, Taipei Medical University, Taipei, Taiwan
| | - Tim P Jones
- School of Earth and Ocean Sciences, Cardiff University, Cardiff, Wales, UK
| | - Kelly A BéruBé
- School of Biosciences, Cardiff University, Cardiff, Wales, UK
| | - Gui-Bing Hong
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Kin-Fai Ho
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, People's Republic of China ; Shenzhen Municipal Key Laboratory for Health Risk Analysis, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People's Republic of China
| | - Hsiao-Chi Chuang
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan ; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
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14
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Liu WT, Bien MY, Chuang KJ, Chang TY, Jones T, BéruBé K, Lalev G, Tsai DH, Chuang HC, Cheng TJ. Physicochemical and biological characterization of single-walled and double-walled carbon nanotubes in biological media. JOURNAL OF HAZARDOUS MATERIALS 2014; 280:216-225. [PMID: 25164386 DOI: 10.1016/j.jhazmat.2014.07.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 07/14/2014] [Accepted: 07/23/2014] [Indexed: 06/03/2023]
Abstract
To study the toxicity of nanoparticles under relevant conditions, it is important to reproducibly disperse nanoparticles in biological media in in vitro and in vivo studies. Here, single-walled nanotubes (SWNTs) and double-walled nanotubes (DWNTs) were physicochemically and biologically characterized when dispersed in phosphate-buffered saline (PBS) and bovine serum albumin (BSA). BSA-SWNT/DWNT interaction resulted in a reduction of aggregation and an increase in particle stabilization. Based on the protein sequence coverage and protein binding results, DWNTs exhibited higher protein binding than SWNTs. SWNT and DWNT suspensions in the presence of BSA increased interleukin-6 (IL-6) levels and reduced tumor necrosis factor-alpha (TNF-α) levels in A549 cells as compared to corresponding samples in the absence of BSA. We next determined the effects of SWNTs and DWNTs on pulmonary protein modification using bronchoalveolar lavage fluid (BALF) as a surrogate collected form BALB/c mice. The BALF proteins bound to SWNTs (13 proteins) and DWNTs (11 proteins), suggesting that these proteins were associated with blood coagulation pathways. Lastly, we demonstrated the importance of physicochemical and biological alterations of SWNTs and DWNTs when dispersed in biological media, since protein binding may result in the misinterpretation of in vitro results and the activation of protein-regulated biological responses.
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Affiliation(s)
- Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.
| | - Mauo-Ying Bien
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan.
| | - Kai-Jen Chuang
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan.
| | - Ta-Yuan Chang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan.
| | - Tim Jones
- School of Earth and Ocean Sciences, Cardiff University, Cardiff, Wales, UK.
| | - Kelly BéruBé
- School of Biosciences, Cardiff University, Cardiff, Wales, UK.
| | - Georgi Lalev
- School of Chemistry, Cardiff University, Cardiff, Wales, UK.
| | - Dai-Hua Tsai
- Institute of Social and Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland.
| | - Hsiao-Chi Chuang
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.
| | - Tsun-Jen Cheng
- Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei, Taiwan; School of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan.
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Pan CH, Liu WT, Bien MY, Lin IC, Hsiao TC, Ma CM, Lai CH, Chen MC, Chuang KJ, Chuang HC. Effects of size and surface of zinc oxide and aluminum-doped zinc oxide nanoparticles on cell viability inferred by proteomic analyses. Int J Nanomedicine 2014; 9:3631-43. [PMID: 25120361 PMCID: PMC4128792 DOI: 10.2147/ijn.s66651] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Although the health effects of zinc oxide nanoparticles (ZnONPs) on the respiratory system have been reported, the fate, potential toxicity, and mechanisms in biological cells of these particles, as related to particle size and surface characteristics, have not been well elucidated. To determine the physicochemical properties of ZnONPs that govern cytotoxicity, we investigated the effects of size, electronic properties, zinc concentration, and pH on cell viability using human alveolar-basal epithelial A549 cells as a model. We observed that a 2-hour or longer exposure to ZnONPs induced changes in cell viability. The alteration in cell viability was associated with the zeta potentials and pH values of the ZnONPs. Proteomic profiling of A549 exposed to ZnONPs for 2 and 4 hours was used to determine the biological mechanisms of ZnONP toxicity. p53-pathway activation was the core mechanism regulating cell viability in response to particle size. Activation of the Wnt and TGFβ signaling pathways was also important in the cellular response to ZnONPs of different sizes. The cadherin and Wnt signaling pathways were important cellular mechanisms triggered by surface differences. These results suggested that the size and surface characteristics of ZnONPs might play an important role in their observed cytotoxicity. This approach facilitates the design of more comprehensive systems for the evaluation of nanoparticles.
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Affiliation(s)
- Chih-Hong Pan
- Institute of Labor, Occupational Safety and Health, Ministry of Labor, Taipei Medical University Hospital, Taipei, Taiwan ; School of Public Health, National Defense Medical Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University Hospital, Taipei, Taiwan ; School of Respiratory Therapy, College of Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Mauo-Ying Bien
- School of Respiratory Therapy, College of Medicine, Taipei Medical University Hospital, Taipei, Taiwan ; Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - I-Chan Lin
- Department of Ophthalmology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Ta-Chih Hsiao
- Graduate Institute of Environmental Engineering, National Central University, Taoyuan, Taiwan
| | - Chih-Ming Ma
- Department of Cosmetic Application and Management, St Mary's Junior College of Medicine, Nursing and Management, Sanxing, Taiwan
| | - Ching-Huang Lai
- School of Public Health, National Defense Medical Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Mei-Chieh Chen
- Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kai-Jen Chuang
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan ; School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Hsiao-Chi Chuang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University Hospital, Taipei, Taiwan ; School of Respiratory Therapy, College of Medicine, Taipei Medical University Hospital, Taipei, Taiwan
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