1
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Wan Y, Peng M, Wang YP. Assessment of heavy metal concentrations in roadside soils and plants around the Dexing copper mine: implications for environmental management and remediation. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:251. [PMID: 38340265 DOI: 10.1007/s10661-024-12422-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
While land transportation is crucial for social development, it also introduces various pollutants, including heavy metals, which pose risks to both the environment and human health. This issue is particularly acute in mining areas, yet research focusing on heavy metal accumulation in soils and plants along transportation routes in these areas has been limited. Addressing this gap, this study investigates soil contamination levels and heavy metal concentrations in dominant plants along a highway and railway in the vicinity of the Dexing Copper Mine, the largest open-pit copper mine in China, located in Jiangxi Province. These transportation routes are heavily utilized for ore transportation, making them critical areas for environmental monitoring. Results reveal that the primary heavy metal contaminants in the soil were Cu (84.9 to 2554.3 mg/kg), Pb (38.3 to 2013.4 mg/kg), Cd (0.1 to 46.6 mg/kg), Zn (81.3 to 875.8 mg/kg), and As (11.8 to 2985.2 mg/kg), with significantly higher concentrations found in soils adjacent to the railway compared to the highway. Specifically, for plants along the highway, Cyperus rotundus showed a significant enrichment in Cd and demonstrated a notable capacity to translocate heavy metals from its roots to aerial parts. This is evidenced by the elevated concentration of Cd in the plant's aboveground tissues (0.87 mg/kg). Notably, both the bioconcentration factor (BCF) and translocation factor (TF) values exceeded 1, ranging from 1.07 to 3.62. Contrastingly, despite the elevated heavy metal concentrations in soils adjacent to the railway, plants in these areas did not exhibit hyperaccumulation characteristics. The unique behavior of Cyperus rotundus in accumulating and translocating Cd underscores its potential role in phytoremediation, particularly in the context of environmental management for areas impacted by mining activities, such as those surrounding China's largest copper mine.
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Affiliation(s)
- Yueya Wan
- School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang, 330013, People's Republic of China
| | - Meiyan Peng
- College of Chemistry and Environmental Science, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang, 524088, China
| | - Yao-Ping Wang
- College of Chemistry and Environmental Science, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang, 524088, China.
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2
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Ren Q, Guo X, Yang D, Zhao C, Zhang X, Xia X. A wide survey of heavy metals-induced in-vitro DNA replication stress characterized by rate-limited replication. Curr Res Toxicol 2024; 6:100152. [PMID: 38327637 PMCID: PMC10848000 DOI: 10.1016/j.crtox.2024.100152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/12/2024] [Accepted: 01/25/2024] [Indexed: 02/09/2024] Open
Abstract
Heavy metals (HMs) are environmental pollutants that pose a threat to human health and have been accepted to cause various diseases, including cancer and developmental disorders. DNA replication stress has been identified to be associated with such diseases. However, the effect of HMs exclusively on DNA replication stress is still not well understood. In this study, DNA replication stress induced by thirteen HMs was assessed using a simplified in-vitro DNA replication model. Two parameters, Cte/Ctc reflecting the cycle threshold value alteration and Ke/Kc reflecting the linear phase slope change, were calculated based on the DNA replication amplification curve to evaluate the rate of exponential and linear phases. These parameters were used to detect the replication rate reflecting in-vitro DNA replication stress induced by tested HMs. According to the effective concentrations and rate-limiting degree, HMs were ranked as follows: Hg, Ce > Pb > Zn > Cr > Cd > Co > Fe > Mn, Cu, Bi, Sr, Ni. Additionally, EDTA could relieve the DNA replication stress induced by some HMs. In conclusion, this study highlights the potential danger of HMs themselves on DNA replication and provides new insight into the possible links between HMs and DNA replication-related diseases.
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Affiliation(s)
- Qidong Ren
- Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture and Rural Affairs/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 23788 Gongye North Road, Jinan 250100, China
- State Key Laboratory of Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xuejun Guo
- State Key Laboratory of Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Dong Yang
- Gene Engineering and Biotechnology Beijing Key Laboratory, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Chuanfang Zhao
- State Key Laboratory of Environmental Chemistry and Eco-Toxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiangyuan Zhang
- State Key Laboratory of Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xinghui Xia
- State Key Laboratory of Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
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3
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Haseen U, Kapoor S, Khan RA, Ahmad H, Koo BH. In Situ Fabrication and Characterization of g-C 3N 4 onto Cellulose Nanofibers and Selective Separation of Heavy Metal Ions. ACS OMEGA 2024; 9:1620-1626. [PMID: 38222511 PMCID: PMC10785291 DOI: 10.1021/acsomega.3c08177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/28/2023] [Accepted: 12/18/2023] [Indexed: 01/16/2024]
Abstract
Graphitic carbon nitride nanosheets were synthesized onto cellulose nanofiber surfaces utilizing an eco-friendly salt melt approach. The fabricated material CNF@C3N4 selectively removes Ni(II) and Cu(II) from electroplating wastewater samples. The immobilization of g-C3N4 on solid substrates eases handling of nanomaterial in a flow-through approach and mitigates sorbent loss during column operations. Characterization techniques such as scanning electron microscopy, tunneling electron microscopy, and X-ray photoelectron microscopy were employed to analyze the surface morphology and chemical bonding within the synthesized material. Selective Cu(II) and Ni(II) sorption predominantly arises from the soft-soft interaction between metal ions and associated nitrogen groups. An inner-sphere surface complexation mechanism effectively elucidated the interaction dynamics between the metal and CNF@C3N4. Experimental findings demonstrated satisfactory separation of Ni(II) and Cu(II) ions, with the extraction of 340.0 and 385.0 mg g-1 of material, respectively. Additionally, the devised technique was executed for the preconcentration and quantification of trace metals ions in water samples with a detection limit and limit of quantification of 0.06 and 0.20 μg L-1, respectively.
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Affiliation(s)
- Uzma Haseen
- Department
of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Sakshi Kapoor
- Department
of Physics, Indian Institute of Technology, New Delhi 110016, India
| | - Rais Ahmad Khan
- Department
of Chemistry, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Hilal Ahmad
- Division
of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
- Faculty of
Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | - Bon Heun Koo
- School
of Materials Science and Engineering, Changwon
National University, Changwon 1140, Gyeongnam, South Korea
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4
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Tanabe S, Boonstra E, Hong T, Quader S, Ono R, Cabral H, Aoyagi K, Yokozaki H, Perkins EJ, Sasaki H. Molecular Networks of Platinum Drugs and Their Interaction with microRNAs in Cancer. Genes (Basel) 2023; 14:2073. [PMID: 38003016 PMCID: PMC10671144 DOI: 10.3390/genes14112073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/10/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
The precise mechanism of resistance to anti-cancer drugs such as platinum drugs is not fully revealed. To reveal the mechanism of drug resistance, the molecular networks of anti-cancer drugs such as cisplatin, carboplatin, oxaliplatin, and arsenic trioxide were analyzed in several types of cancers. Since diffuse-type stomach adenocarcinoma, which has epithelial-mesenchymal transition (EMT)-like characteristics, is more malignant than intestinal-type stomach adenocarcinoma, the gene expression and molecular networks in diffuse- and intestinal-type stomach adenocarcinomas were analyzed. Analysis of carboplatin revealed the causal network in diffuse large B-cell lymphoma. The upstream regulators of the molecular networks of cisplatin-treated lung adenocarcinoma included the anti-cancer drug trichostatin A (TSA), a histone deacetylase inhibitor. The upstream regulator analysis of cisplatin revealed an increase in FAS, BTG2, SESN1, and CDKN1A, and the involvement of the tumor microenvironment pathway. The molecular networks were predicted to interact with several microRNAs, which may contribute to the identification of new drug targets for drug-resistant cancer. Analysis of oxaliplatin, a platinum drug, revealed that the SPINK1 pancreatic cancer pathway is inactivated in ischemic cardiomyopathy. The study showed the importance of the molecular networks of anti-cancer drugs and tumor microenvironment in the treatment of cancer resistant to anti-cancer drugs.
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Affiliation(s)
- Shihori Tanabe
- Division of Risk Assessment, Center for Biological Safety and Research, National Institute of Health Sciences, Kawasaki 210-9501, Japan
| | - Eger Boonstra
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan (T.H.); (H.C.)
| | - Taehun Hong
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan (T.H.); (H.C.)
| | - Sabina Quader
- Innovation Centre of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki 210-0821, Japan;
| | - Ryuichi Ono
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences, Kawasaki 210-9501, Japan;
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan (T.H.); (H.C.)
| | - Kazuhiko Aoyagi
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
| | - Hiroshi Yokozaki
- Department of Pathology, Kobe University of Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Edward J. Perkins
- US Army Engineer Research and Development Center, Vicksburg, MS 39180, USA;
| | - Hiroki Sasaki
- Department of Translational Oncology, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
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Wang J, Yu X, Cao X, Tan L, Jia B, Chen R, Li J. GAPDH: A common housekeeping gene with an oncogenic role in pan-cancer. Comput Struct Biotechnol J 2023; 21:4056-4069. [PMID: 37664172 PMCID: PMC10470192 DOI: 10.1016/j.csbj.2023.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023] Open
Abstract
Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) is one of the most prominent housekeeping proteins and is widely used as an internal control in some semi-quantitative assays. In addition to glycolysis, GAPDH is involved in several cancer-related biological processes and has been reported to be commonly dysregulated in multiple cancer types. Therefore, its role in the physiological process of cancer needs to be urgently elucidated. Pan-cancer analysis indicated that GAPDH is ubiquitously highly expressed in most cancer types, and that patients with a high GAPDH expression of in tumor tissues have a poor prognosis. The concordance of GAPDH expression in tumors with the infiltration of immune cells and immune checkpoints implies a certain association between GAPDH and the tumor microenvironment as well as tumor development. Gene Set Enrichment Analysis revealed that GAPDH may contribute to multiple important cancer-related pathways and biological processes. Multi-omics analysis and in vitro cell experiments revealed that GAPDH overexpression is regulated by DNA copy number amplification and promoter methylation modification. Importantly, a transcription factor, forkhead box M1 (FOXM1), which is capable of regulating GAPDH expression, was also identified and was confirmed to be an oncogene and ubiquitously highly expressed in multiple cancer types. Semi-quantitative chromatin immunoprecipitation, quantitative PCR, and dual-luciferase assays showed that FOXM1 mainly binds to the promoter region of GAPDH in two cancer cell lines. The present findings revealed the implication of GAPDH in tumor development, thus bringing attention to this important molecule and casting doubts on its role as an internal reference gene in cancer studies.
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Affiliation(s)
- Jin Wang
- Department of Toxicology, School of Public Health, Suzhou Medical College of Soochow University, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Xueting Yu
- Department of Toxicology, School of Public Health, Suzhou Medical College of Soochow University, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Xiyuan Cao
- Department of Toxicology, School of Public Health, Suzhou Medical College of Soochow University, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Lirong Tan
- Department of Toxicology, School of Public Health, Suzhou Medical College of Soochow University, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Beibei Jia
- Department of Toxicology, School of Public Health, Suzhou Medical College of Soochow University, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Rui Chen
- Department of Respiratory Medicine, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, China
| | - Jianxiang Li
- Department of Toxicology, School of Public Health, Suzhou Medical College of Soochow University, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
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6
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Lu Z, Su H. Employing gene chip technology for monitoring and assessing soil heavy metal pollution. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 194:2. [PMID: 34862584 DOI: 10.1007/s10661-021-09650-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 11/21/2021] [Indexed: 06/13/2023]
Abstract
Soil heavy metals pollution can cause many serious environment problems because of involving a very complex pollution process for soil health. Therefore, it is very important to explore methods that can effectively evaluate heavy metal pollution. Researchers were actively looking for new ideas and new methods for evaluating and predicting levels of soil heavy metal pollution. The study on microbial communities is one of the effective methods using gene chip technology. Gene chip technology, as a high-throughput metagenomics analysis technique, has been widely used for studying the structure and function of complex microbial communities in different polluted environments from different pollutants, including the soil polluted by heavy metals. However, there is still a lack of a systematic summarization for the polluted soil by heavy metals. This paper systematically analyzed soil heavy metals pollution via reviewing previous studies on applying gene chip technology, including single species, tolerance mechanisms, enrichment mechanisms, anticipation and evaluation of soil remediation, and multi-directional analysis. The latest gene chip technologies and corresponding application cases for discovering critical species and functional genes via analyzing microbial communities and evaluating heavy metal pollution of soil were also introduced in this paper. This article can provide scientific guidance for researchers actively investigating the soil polluted by heavy metals.
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Affiliation(s)
- ZiChun Lu
- College of Hehai, Chongqing University of Technology, Chongqing, 400717, China
| | - HaiFeng Su
- Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Natural and Resources, Xi'an, Shanxi, 710075, China.
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Science, Chongqing, 400714, China.
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7
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Yang L, Zhang Y, Wang F, Luo Z, Guo S, Strähle U. Toxicity of mercury: Molecular evidence. CHEMOSPHERE 2020; 245:125586. [PMID: 31881386 DOI: 10.1016/j.chemosphere.2019.125586] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/28/2019] [Accepted: 12/08/2019] [Indexed: 05/25/2023]
Abstract
Minamata disease in Japan and the large-scale poisoning by methylmercury (MeHg) in Iraq caused wide public concerns about the risk emanating from mercury for human health. Nowadays, it is widely known that all forms of mercury induce toxic effects in mammals, and increasing evidence supports the concern that environmentally relevant levels of MeHg could impact normal biological functions in wildlife. The information of mechanism involved in mercurial toxicity is growing but knowledge gaps still exist between the adverse effects and mechanisms of action, especially at the molecular level. A body of data obtained from experimental studies on mechanisms of mercurial toxicity in vivo and in vitro points to that disruption of the antioxidant system may play an important role in the mercurial toxic effects. Moreover, the accumulating evidence indicates that signaling transduction, protein or/and enzyme activity, and gene regulation are involving in mediating toxic and adaptive response to mercury exposure. We conducted here a comprehensive review of mercurial toxic effects on wildlife and human, in particular synthesized key findings of molecular pathways involved in mercurial toxicity from the cells to human. We discuss the molecular evidence related mercurial toxicity to the adverse effects, with particular emphasis on the gene regulation. The further studies relying on Omic analysis connected to adverse effects and modes of action of mercury will aid in the evaluation and validation of causative relationship between health outcomes and gene expression.
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Affiliation(s)
- Lixin Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, China; Center for Global Health, School of Public Health, Nanjing Medical University, 211166, Nanjing, China.
| | - Yuanyuan Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, China
| | - Feifei Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, China
| | - Zidie Luo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, China
| | - Shaojuan Guo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, China
| | - Uwe Strähle
- Toxicology and Genetics, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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8
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Fukushima T, Jintana W, Okabe S. Mixture toxicity of the combinations of silver nanoparticles and environmental pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:6326-6337. [PMID: 31865577 DOI: 10.1007/s11356-019-07413-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Although toxicity of silver nanoparticles (AgNPs) has been well studied, the mixture toxicity of the combination of AgNPs and other environmental pollutants is still largely unknown. Here, we investigated the mixture toxicity of the combinations of AgNPs and common environmental pollutants such as arsenic (As), cadmium (Cd), and chromium (Cr) on human hepatoma cell line (HepG2) at noncytotoxic concentrations based on analyses of cytotoxicity, genotoxicity, reactive oxygen species (ROS) generation, and modes of cell death. In addition, DNA microarray analysis was performed to understand the cellular responses at a molecular level. AgNPs-As and AgNPs-Cd combinations exhibited synergistic effect on cytotoxicity while AgNPs-Cr showed additive effect. The AgNPs-Cd combination caused much stronger synergism than AgNPs-As combination. Based on cellular and molecular level analyses, the synergistic effect could be explained by overproduction of reactive oxygen species (ROS), which induced DNA damage and consequently apoptotic cell death. On the other hand, the additive effect caused by AgNPs-Cr could be attributed to reduction of the mixture toxicity by precipitation of Cr ions. Taken together, our results clearly demonstrated that the mixture toxicity of AgNPs with As, Cd, or Cr at noncytotoxic concentrations had different toxicity effects. Particularly, toxicogenomic approach using DNA microarray was useful to assess the mechanisms of the mixture toxicity.
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Affiliation(s)
- Toshikazu Fukushima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Wongta Jintana
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.
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9
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Hara-Yamamura H, Fukushima T, Tan LC, Okabe S. Transcriptomic analysis of HepG2 cells exposed to fractionated wastewater effluents suggested humic substances as potential inducer of whole effluent toxicity. CHEMOSPHERE 2020; 240:124894. [PMID: 31726595 DOI: 10.1016/j.chemosphere.2019.124894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/22/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
We performed a transcriptome-based bioassay (TSB assay) using human hepatoma HepG2 cells to evaluate the potential toxicity of whole wastewater effluents from two membrane bioreactors (MBRs) and a conventional activated sludge process (AS). The biologically active agent(s) in the wastewater effluents were characterized based on expression of the marker genes (i.e., CYP1A1, AKR1B10, GCLM and GPX2) selected by DNA microarray analysis, after the wastewater effluent samples were concentrated by a reverse osmosis (RO) membrane and further fractionated by various manipulations. The qPCR assay of marker genes demonstrated that the induction of CYP1A1 and GPX2 was mitigated after passing through C18 and chelate columns. In addition, clear induction of CYP1A1 was observed in the smallest size fraction with 1 k Da or smaller organic molecules in all the tested effluents. These results together with the water quality data of the fractionated samples suggested that responsible constituents for potentially adverse and abnormal transcriptomic responses in HepG2 could have hydrophobic nature and act with metal-dissolved organic matter (DOM) complexes in 1 k Da or smaller size fraction. Although DOM is known to play two contradictory roles as a protector and an inducer of toxicants, our present study indicated the DOM in wastewater effluent, particularly humic substances with acidic nature, functioned as a toxicity inducer of residual chemicals in the effluents. This study provided a new insight into the nature of "toxic unknowns" in the wastewater effluents, which should be monitored whole through the reclamation process and prioritized for removal.
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Affiliation(s)
- Hiroe Hara-Yamamura
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Toshikazu Fukushima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Lea Chua Tan
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.
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Sharma N, Sharma A, Bhatia G, Landi M, Brestic M, Singh B, Singh J, Kaur S, Bhardwaj R. Isolation of Phytochemicals from Bauhinia variegata L. Bark and Their In Vitro Antioxidant and Cytotoxic Potential. Antioxidants (Basel) 2019; 8:antiox8100492. [PMID: 31627372 PMCID: PMC6826637 DOI: 10.3390/antiox8100492] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/07/2019] [Accepted: 10/16/2019] [Indexed: 12/31/2022] Open
Abstract
Plants have been the basis of traditional medicine since the dawn of civilizations. Different plant parts possess various phytochemicals, playing important roles in preventing and curing diseases. Scientists, through extensive experimental studies, are playing an important part in establishing the use of phytochemicals in medicine. However, there are still a large number of medicinal plants which need to be studied for their phytochemical profile. In this study, the objective was to isolate phytochemicals from bark of Bauhinia variegata L. and to study them for their antioxidant and cytotoxic activities. The bark was extracted with methanol, followed by column chromatography and thus isolating kaempferol, stigmasterol, protocatechuic acid-methyl ester (PCA-ME) and protocatechuic acid (PCA). 2,2-azinobis-3-ethyl-benzothiazoline-6-sulfonic acid (ABTS) and 2, 2'-diphenyl-1-picrylhydrazyl radical (DPPH) radical scavenging assays were utilized for assessment of antioxidant activity, and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) dye reduction assay was used to determine cytotoxic activity against C-6 glioma rat brain, MCF-7 breast cancer, and HCT-15 colon cancer cell lines. The compounds were found to have significant antioxidant and cytotoxic activity. Since there is a considerable increase in characterizing novel chemical compounds from plant parts, the present study might be helpful for chemotaxonomic determinations, for understanding of medicinal properties as well as for the quality assessment of herbal supplements containing B. variegata bark, thus establishing its use in traditional medicine.
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Affiliation(s)
- Neha Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
| | - Anket Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
| | - Gaurav Bhatia
- Department of Biophysics, Panjab University, Chandigarh 160014, India.
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India.
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy.
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Nitra 94976, Slovakia.
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic.
| | - Bikram Singh
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061, India.
| | - Jatinder Singh
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India.
| | - Satwinderjeet Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
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11
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Gan G, Li X, Fan S, Wang L, Qin M, Yin Z, Chen G. Carbon Aerogels for Environmental Clean-Up. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801512] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Guoqiang Gan
- State Key Laboratory of Fine Chemicals; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE); School of Environmental Science and Technology; Dalian University of Technology; 116024 Dalian China
| | - Xinyong Li
- State Key Laboratory of Fine Chemicals; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE); School of Environmental Science and Technology; Dalian University of Technology; 116024 Dalian China
- Department of Chemical and Biological Engineering; The Hong Kong University of Science and Technology; China
| | - Shiying Fan
- State Key Laboratory of Fine Chemicals; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE); School of Environmental Science and Technology; Dalian University of Technology; 116024 Dalian China
| | - Liang Wang
- State Key Laboratory of Fine Chemicals; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE); School of Environmental Science and Technology; Dalian University of Technology; 116024 Dalian China
| | - Meichun Qin
- State Key Laboratory of Fine Chemicals; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE); School of Environmental Science and Technology; Dalian University of Technology; 116024 Dalian China
| | - Zhifan Yin
- State Key Laboratory of Fine Chemicals; Key Laboratory of Industrial Ecology and Environmental Engineering (MOE); School of Environmental Science and Technology; Dalian University of Technology; 116024 Dalian China
| | - Guohua Chen
- Department of Chemical and Biological Engineering; The Hong Kong University of Science and Technology; China
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12
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Liu W, Zheng J, Ou X, Liu X, Song Y, Tian C, Rong W, Shi Z, Dang Z, Lin Z. Effective Extraction of Cr(VI) from Hazardous Gypsum Sludge via Controlling the Phase Transformation and Chromium Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13336-13342. [PMID: 30353724 DOI: 10.1021/acs.est.8b02213] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Through controlling the phase transformation and chromium species under hydrothermal condition, the Cr(VI) was extracted fully from hazardous Cr(VI)-containing gypsum sludge, with a very high efficiency of more than 99.5%. Scanning transmission electron microscopy, X-ray absorption fine structure, and density functional theory calculation results revealed that the dissolution-recrystallization of CaSO4·2H2O into CaSO4 was the key factor to fully release the encapsulated Cr(VI). Moreover, the mineralizer (persulfate salt) provided H+ and SO42- ions, the former made an acidic condition to transform the released CrO42- into the specie (Cr2O72-) with less similarity to SO42-, which further prevented the recombination of the released Cr(VI) with gypsum; and the latter was essential to accelerate crystal growth of calcium sulfate so as to enhance Cr(VI) extraction. This work would provide an instructive guidance to fully extract heavy metals from hazardous solid wastes via the control of crystal transformation and the pollutant species.
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Affiliation(s)
- Weizhen Liu
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
| | - Jiayi Zheng
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
| | - Xinwen Ou
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
| | - Xueming Liu
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
- Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou , 510006 , China
| | - Yao Song
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
| | - Chen Tian
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
- Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou , 510006 , China
| | - Wencong Rong
- Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou , 510006 , China
| | - Zhenqing Shi
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
- Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou , 510006 , China
| | - Zhi Dang
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
| | - Zhang Lin
- School of Environment and Energy , South China University of Technology , Guangzhou , 510006 , China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou , 510006 , China
- Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou , 510006 , China
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13
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Hou J, Liu H, Wang L, Duan L, Li S, Wang X. Molecular Toxicity of Metal Oxide Nanoparticles in Danio rerio. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7996-8004. [PMID: 29944347 DOI: 10.1021/acs.est.8b01464] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Metal oxide nanoparticles can exert adverse effects on humans and aquatic organisms; however, their toxic mechanisms are still unclear. We investigated the toxic effects and mechanisms of copper oxide, zinc oxide, and nickel oxide nanoparticles in Danio rerio using microarray analysis and the comet assay. Copper oxide nanoparticles were more lethal than the other metal oxide nanoparticles. Gene ontology analysis of genes that were differentially expressed following exposure to all three metal oxide nanoparticles showed that the nanoparticles mainly affected nucleic acid metabolism in the nucleus via alterations in nucleic acid binding. KEGG analysis classified the differentially expressed genes to the genotoxicity-related pathways "cell cycle", "Fanconi anemia", "DNA replication", and "homologous recombination". The toxicity of metal oxide nanoparticles may be related to impairments in DNA synthesis and repair, as well as to increased production of reactive oxygen species.
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Affiliation(s)
- Jing Hou
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , China
| | - Haiqiang Liu
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , China
| | - Luyao Wang
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , China
| | - Linshuai Duan
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , China
| | - Shiguo Li
- Research Center for Eco-Environmental Sciences , Chinese Academy of Science , Beijing 100085 , China
| | - Xiangke Wang
- College of Environmental Science and Engineering , North China Electric Power University , Beijing 102206 , China
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14
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Monastero RN, Vacchi-Suzzi C, Marsit C, Demple B, Meliker JR. Expression of Genes Involved in Stress, Toxicity, Inflammation, and Autoimmunity in Relation to Cadmium, Mercury, and Lead in Human Blood: A Pilot Study. TOXICS 2018; 6:toxics6030035. [PMID: 29986418 PMCID: PMC6160949 DOI: 10.3390/toxics6030035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 06/29/2018] [Accepted: 07/04/2018] [Indexed: 11/16/2022]
Abstract
There is growing evidence of immunotoxicity related to exposure to toxic trace metals, and an examination of gene expression patterns in peripheral blood samples may provide insights into the potential development of these outcomes. This pilot study aimed to correlate the blood levels of three heavy metals (mercury, cadmium, and lead) with differences in gene expression in 24 participants from the Long Island Study of Seafood Consumption. We measured the peripheral blood mRNA expression of 98 genes that are implicated in stress, toxicity, inflammation, and autoimmunity. We fit multiple linear regression models with multiple testing correction to correlate exposure biomarkers with mRNA abundance. The mean blood Hg in this cohort was 16.1 µg/L, which was nearly three times the Environmental Protection Agency (EPA) reference dose (5.8 µg/L). The levels of the other metals were consistent with those in the general population: the mean Pb was 26.8 µg/L, and the mean Cd was 0.43 µg/L. The expression of three genes was associated with mercury, four were associated with cadmium, and five were associated with lead, although none were significant after multiple testing correction. Little evidence was found to associate metal exposure with mRNA abundance for the tested genes that were associated with stress, toxicity, inflammation, or autoimmunity. Future work should provide a more complete picture of physiological reactions to heavy metal exposure.
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Affiliation(s)
- Rebecca N Monastero
- Stony Brook University School of Medicine, 101 Nicolls Road, Health Sciences Center, Level 4, Stony Brook, NY 11794-8434, USA.
- Stony Brook University, Stony Brook, NY 11794, USA.
| | - Caterina Vacchi-Suzzi
- Stony Brook University, Stony Brook, NY 11794, USA.
- Stony Brook University Cancer Center, Stony Brook Medicine 3 Edmund D. Pellegrino Road, Stony Brook, NY 11794-9452, USA.
| | - Carmen Marsit
- Department of Environmental Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, Atlanta, GA 30322, USA.
| | - Bruce Demple
- Stony Brook University, Stony Brook, NY 11794, USA.
- Department of Pharmacological Sciences, Stony Brook Medicine, BST 8-140, Stony Brook, NY 11794, USA.
| | - Jaymie R Meliker
- Stony Brook University, Stony Brook, NY 11794, USA.
- Program in Public Health, Department of Family, Population and Preventive Medicine, Stony Brook University, HSC L3, Rm 071, Stony Brook, NY 11794, USA.
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15
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Minatel BC, Sage AP, Anderson C, Hubaux R, Marshall EA, Lam WL, Martinez VD. Environmental arsenic exposure: From genetic susceptibility to pathogenesis. ENVIRONMENT INTERNATIONAL 2018; 112:183-197. [PMID: 29275244 DOI: 10.1016/j.envint.2017.12.017] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/15/2017] [Accepted: 12/12/2017] [Indexed: 05/21/2023]
Abstract
More than 200 million people in 70 countries are exposed to arsenic through drinking water. Chronic exposure to this metalloid has been associated with the onset of many diseases, including cancer. Epidemiological evidence supports its carcinogenic potential, however, detailed molecular mechanisms remain to be elucidated. Despite the global magnitude of this problem, not all individuals face the same risk. Susceptibility to the toxic effects of arsenic is influenced by alterations in genes involved in arsenic metabolism, as well as biological factors, such as age, gender and nutrition. Moreover, chronic arsenic exposure results in several genotoxic and epigenetic alterations tightly associated with the arsenic biotransformation process, resulting in an increased cancer risk. In this review, we: 1) review the roles of inter-individual DNA-level variations influencing the susceptibility to arsenic-induced carcinogenesis; 2) discuss the contribution of arsenic biotransformation to cancer initiation; 3) provide insights into emerging research areas and the challenges in the field; and 4) compile a resource of publicly available arsenic-related DNA-level variations, transcriptome and methylation data. Understanding the molecular mechanisms of arsenic exposure and its subsequent health effects will support efforts to reduce the worldwide health burden and encourage the development of strategies for managing arsenic-related diseases in the era of personalized medicine.
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Affiliation(s)
- Brenda C Minatel
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Adam P Sage
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Christine Anderson
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Roland Hubaux
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Erin A Marshall
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Wan L Lam
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Victor D Martinez
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada.
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16
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Mousavi SJ, Parvini M, Ghorbani M. Adsorption of heavy metals (Cu 2+ and Zn 2+ ) on novel bifunctional ordered mesoporous silica: Optimization by response surface methodology. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.01.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Luo Z, Qu L, Jia J, Wang J, Jiang S, Wu Z, Wu X. TiO 2 /EDTA-rich carbon composites: Synthesis, characterization and visible-light-driven photocatalytic reduction of Cr(VI). CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.09.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Hill T, Rice RH. DUOX expression in human keratinocytes and bronchial epithelial cells: Influence of vanadate. Toxicol In Vitro 2018; 46:257-264. [PMID: 29031483 PMCID: PMC5683910 DOI: 10.1016/j.tiv.2017.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/06/2017] [Accepted: 10/06/2017] [Indexed: 01/10/2023]
Abstract
Dual oxygenases (DUOX) 1 and 2, expressed in many animal tissues, participate in host defense at mucosal surfaces and may have important signaling roles through generation of reactive oxygen. Present work addresses their expression in cultured human epidermal keratinocytes and effects of cytokines and metal/metalloid compounds. Both DUOX1 and 2 were expressed at much higher levels after confluence than in the preconfluent state. Maximal DUOX1 mRNA levels were 50 fold those of DUOX2. DUOX1 and 2 were induced ≈3 fold by interleukin 4, but only DUOX1 was induced by interferon gamma (IFNγ). In human bronchial HBE1 cells, by contrast, interleukin 4 induced only DUOX 1, and IFNγ induced only DUOX2. A survey in the keratinocytes of metal/metalloid compounds showed that arsenite, antimonite, chromate, cadmium, copper, lead and vanadate suppressed DUOX1 levels but did not prevent interleukin 4 stimulation. Effects on DUOX2 were less dramatic, except that vanadate potentiated the stimulation by IFNγ up to 7 fold. The results indicate that epithelial cell types of different tissue origins can differ in their cytokine regulation and that epidermal cells can exhibit striking alterations in response due to certain metal/metalloid exposures.
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Affiliation(s)
- Thomas Hill
- Department of Environmental Toxicology, University of California at Davis, USA
| | - Robert H Rice
- Department of Environmental Toxicology, University of California at Davis, USA.
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19
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Fukushima T, Hara-Yamamura H, Nakashima K, Tan LC, Okabe S. Multiple-endpoints gene alteration-based (MEGA) assay: A toxicogenomics approach for water quality assessment of wastewater effluents. CHEMOSPHERE 2017; 188:312-319. [PMID: 28888119 DOI: 10.1016/j.chemosphere.2017.08.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/18/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Wastewater effluents contain a significant number of toxic contaminants, which, even at low concentrations, display a wide variety of toxic actions. In this study, we developed a multiple-endpoints gene alteration-based (MEGA) assay, a real-time PCR-based transcriptomic analysis, to assess the water quality of wastewater effluents for human health risk assessment and management. Twenty-one genes from the human hepatoblastoma cell line (HepG2), covering the basic health-relevant stress responses such as response to xenobiotics, genotoxicity, and cytotoxicity, were selected and incorporated into the MEGA assay. The genes related to the p53-mediated DNA damage response and cytochrome P450 were selected as markers for genotoxicity and response to xenobiotics, respectively. Additionally, the genes that were dose-dependently regulated by exposure to the wastewater effluents were chosen as markers for cytotoxicity. The alterations in the expression of an individual gene, induced by exposure to the wastewater effluents, were evaluated by real-time PCR and the results were validated by genotoxicity (e.g., comet assay) and cell-based cytotoxicity tests. In summary, the MEGA assay is a real-time PCR-based assay that targets cellular responses to contaminants present in wastewater effluents at the transcriptional level; it is rapid, cost-effective, and high-throughput and can thus complement any chemical analysis for water quality assessment and management.
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Affiliation(s)
- Toshikazu Fukushima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Hiroe Hara-Yamamura
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Koji Nakashima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Lea Chua Tan
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.
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20
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Masciarelli S, Capuano E, Ottone T, Divona M, De Panfilis S, Banella C, Noguera NI, Picardi A, Fontemaggi G, Blandino G, Lo-Coco F, Fazi F. Retinoic acid and arsenic trioxide sensitize acute promyelocytic leukemia cells to ER stress. Leukemia 2017; 32:285-294. [PMID: 28776567 PMCID: PMC5808088 DOI: 10.1038/leu.2017.231] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 06/10/2017] [Accepted: 06/20/2017] [Indexed: 01/03/2023]
Abstract
Retinoic acid (RA) in association with chemotherapy or with arsenic trioxide (ATO) results in high cure rates of acute promyelocytic leukemia (APL). We show that RA-induced differentiation of human leukemic cell lines and primary blasts dramatically increases their sensitivity to endoplasmic reticulum (ER) stress-inducing drugs at doses that are not toxic in the absence of RA. In addition, we demonstrate that the PERK pathway, triggered in response to ER stress, has a major protective role. Moreover, low amounts of pharmacologically induced ER stress are sufficient to strongly increase ATO toxicity. Indeed, in the presence of ER stress, ATO efficiently induced apoptosis in RA-sensitive and RA-resistant APL cell lines, at doses ineffective in the absence of ER stress. Our findings identify the ER stress-related pathways as potential targets in the search for novel therapeutic strategies in AML.
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Affiliation(s)
- S Masciarelli
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - E Capuano
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - T Ottone
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - M Divona
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - S De Panfilis
- Centre for Life Nano Science, Istituto Italiano di Tecnologia, Rome, Italy
| | - C Banella
- Laboratory of Neuro-Oncohematology Unit, Santa Lucia Foundation, Rome, Italy
| | - N I Noguera
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.,Laboratory of Neuro-Oncohematology Unit, Santa Lucia Foundation, Rome, Italy
| | - A Picardi
- Stem Cell Transplant Unit, Rome Transplant Network, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - G Fontemaggi
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute, Rome, Italy
| | - G Blandino
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute, Rome, Italy
| | - F Lo-Coco
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.,Laboratory of Neuro-Oncohematology Unit, Santa Lucia Foundation, Rome, Italy
| | - F Fazi
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
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21
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Evaluation of Sources and Patterns of Elemental Composition of PM 2.5 at Three Low-Income Neighborhood Schools and Residences in Quito, Ecuador. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017. [PMID: 28644400 PMCID: PMC5551112 DOI: 10.3390/ijerph14070674] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Elemental characterization of fine particulate matter was undertaken at schools and residences in three low income neighborhoods in Quito, Ecuador. The three zones were located in the northern (Cotocollao), south central (El Camal), and south east (Los Chillos) neighborhoods and were classified as zones 1–3, respectively. Forty elements were quantified via ICP-MS analysis. Amongst the geogenic elements, the concentration of Si was the most abundant followed by S, Al, and Ca. Elements with predominantly anthropogenic sources such as Zn, V, and Ni were higher in zone 3 school followed by zone 2 and zone 1 schools. Enrichment factors were calculated to study the role of crustal sources in the elemental concentrations. Geogenic elements, except K, all had values <10 and anthropogenic elements such as Ni, V, Zn, Pb, As, Cr had >10. Principal Component Analysis suggested that Ni and V concentrations were strongly attributable to pet coke and heavy oil combustion. Strong associations between As and Pb could be attributed to traffic and other industrial emissions. Resuspended dust, soil erosion, vehicular emissions (tailpipe, brake and tire wear, and engine abrasion), pet coke, heavy oil combustion, and heavy industrial operations were major contributors to air pollution.
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22
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Tessier S, Martin-Martin N, de Thé H, Carracedo A, Lallemand-Breitenbach V. Promyelocytic Leukemia Protein, a Protein at the Crossroad of Oxidative Stress and Metabolism. Antioxid Redox Signal 2017; 26:432-444. [PMID: 27758112 DOI: 10.1089/ars.2016.6898] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
SIGNIFICANCE Cellular metabolic activity impacts the production of reactive oxygen species (ROS), both positively through mitochondrial oxidative processes and negatively by promoting the production of reducing agents (including NADPH and reduced glutathione). A defined metabolic state in cancer cells is critical for cell growth and long-term self-renewal, and such state is intrinsically associated with redox balance. Promyelocytic leukemia protein (PML) regulates several biological processes, at least in part, through its ability to control the assembly of PML nuclear bodies (PML NBs). Recent Advances: PML is oxidation-prone, and oxidative stress promotes NB biogenesis. These nuclear subdomains recruit many nuclear proteins and regulate their SUMOylation and other post-translational modifications. Some of these cargos-such as p53, SIRT1, AKT, and mammalian target of rapamycin (mTOR)-are key regulators of cell fate. PML was also recently shown to regulate oxidation. CRITICAL ISSUES While it was long considered primarily as a tumor suppressor protein, PML-regulated metabolic switch uncovered that this protein could promote survival and/or stemness of some normal or cancer cells. In this study, we review the recent findings on this multifunctional protein. FUTURE DIRECTIONS Studying PML scaffolding functions as well as its fine role in the activation of p53 or fatty acid oxidation will bring new insights in how PML could bridge oxidative stress, senescence, cell death, and metabolism. Antioxid. Redox Signal. 26, 432-444.
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Affiliation(s)
- Sarah Tessier
- 1 Collège de France , Paris, France .,2 INSERM UMR 944, Equipe labellisée par la Ligue Nationale contre le Cancer, Institut Universitaire d'Hématologie , Paris, France .,3 CNRS UMR 7212 , Paris France .,4 Université Paris Diderot-Sorbonne Paris Cité , Paris, France
| | | | - Hugues de Thé
- 1 Collège de France , Paris, France .,2 INSERM UMR 944, Equipe labellisée par la Ligue Nationale contre le Cancer, Institut Universitaire d'Hématologie , Paris, France .,3 CNRS UMR 7212 , Paris France .,4 Université Paris Diderot-Sorbonne Paris Cité , Paris, France .,6 AP-HP, Service de Biochimie, Hôpital St. Louis , Paris, France
| | - Arkaitz Carracedo
- 5 CIC bioGUNE , Bizkaia Technology Part, Derio, Spain .,7 IKERBASQUE , Basque Foundation for Science, Bilbao, Spain .,8 Biochemistry and Molecular Biology Department, University of the Basque Country (UPV/EHU) , Bilbao, Spain
| | - Valérie Lallemand-Breitenbach
- 1 Collège de France , Paris, France .,2 INSERM UMR 944, Equipe labellisée par la Ligue Nationale contre le Cancer, Institut Universitaire d'Hématologie , Paris, France .,3 CNRS UMR 7212 , Paris France .,4 Université Paris Diderot-Sorbonne Paris Cité , Paris, France
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23
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Ju H, Arumugam P, Lee J, Song JM. Impact of Environmental Pollutant Cadmium on the Establishment of a Cancer Stem Cell Population in Breast and Hepatic Cancer. ACS OMEGA 2017; 2:563-572. [PMID: 30023612 PMCID: PMC6044754 DOI: 10.1021/acsomega.6b00181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 02/03/2017] [Indexed: 05/09/2023]
Abstract
Cadmium, a heavy metal pollutant, causes cancer. The existence of cancer stem cells (CSCs) in tumors is widely considered to be the reason for the recurrence and treatment failure of cancer. Increasing evidence has confirmed that under certain conditions non-CSCs could be converted into CSCs. The impact of cadmium on the development of CSC lineage in the bulk tumor cell population is not yet studied. The aim of this study was to evaluate the effect of cadmium on the conversion of non-CSCs to CSCs and the identification of CSCs based on the concurrent monitoring of multiple CSC markers. High-content monitoring of molecular markers was performed using quantum dot (QD) nanoprobes and an acousto-optical tunable filter (AOTF)-based imaging device. Cadmium treatment significantly increased the CSC population in MCF-7 and HepG2 cell lines. The cadmium-induced CSCs were identified by a concurrent analysis of stem-cell markers, namely, CD44, CD24, CD133, and ALDH1. Moreover, increased m-RNA expression of CD44, ALDH1, and CD133 and protein expression of p-Ras, p-Raf-1, p-MEK-1, and p-ERK-1 were observed in the cadmium-treated MCF-7 and HepG2 cells. This study demonstrates that cadmium induces the gene expression of CSC markers in the breast and liver cancer cell lineage and promotes the conversion of non-CSCs to CSCs.
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Affiliation(s)
| | | | - Jungmi Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea
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24
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Luo Z, Wang J, Qu L, Jia J, Jiang S, Zhou X, Wu X, Wu Z. Visible-light-driven photocatalytic reduction of Cr(vi) on magnetite/carboxylate-rich carbon sheets. NEW J CHEM 2017. [DOI: 10.1039/c7nj01800b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Fe(ii)/Fe(iii) photoredox cycle of Fe3O4/carboxylate-rich carbon sheets exhibits excellent visible-light-driven photoreduction activities of Cr(vi).
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Affiliation(s)
- Zhijun Luo
- School of The Environment, Jiangsu University
- Zhenjiang
- P. R. China
- Engineering Technology Center for Heavy Metal Wastewater Treatment and Recovery, Environmental Protection Department of Jiangsu Province, Yixing
- P. R. China
| | - Jing Wang
- School of The Environment, Jiangsu University
- Zhenjiang
- P. R. China
| | - Lingling Qu
- School of Chemistry and Chemical Engineering, Jiangsu University
- Zhenjiang
- P. R. China
| | - Jianzhong Jia
- School of The Environment, Jiangsu University
- Zhenjiang
- P. R. China
| | - Suying Jiang
- Engineering Technology Center for Heavy Metal Wastewater Treatment and Recovery, Environmental Protection Department of Jiangsu Province, Yixing
- P. R. China
- Jiangsu ATK Environment Engineering Design and Research Institute Co., LTD, Yixing
- P. R. China
| | - Xiangtong Zhou
- School of The Environment, Jiangsu University
- Zhenjiang
- P. R. China
| | - Xiangyang Wu
- School of The Environment, Jiangsu University
- Zhenjiang
- P. R. China
| | - Zhiren Wu
- School of The Environment, Jiangsu University
- Zhenjiang
- P. R. China
- Engineering Technology Center for Heavy Metal Wastewater Treatment and Recovery, Environmental Protection Department of Jiangsu Province, Yixing
- P. R. China
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Boland MR, Tatonetti NP. Investigation of 7-dehydrocholesterol reductase pathway to elucidate off-target prenatal effects of pharmaceuticals: a systematic review. THE PHARMACOGENOMICS JOURNAL 2016; 16:411-29. [PMID: 27401223 PMCID: PMC5028238 DOI: 10.1038/tpj.2016.48] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 04/15/2016] [Accepted: 05/02/2016] [Indexed: 12/18/2022]
Abstract
Mendelian diseases contain important biological information regarding developmental effects of gene mutations that can guide drug discovery and toxicity efforts. In this review, we focus on Smith–Lemli–Opitz syndrome (SLOS), a rare Mendelian disease characterized by compound heterozygous mutations in 7-dehydrocholesterol reductase (DHCR7) resulting in severe fetal deformities. We present a compilation of SLOS-inducing DHCR7 mutations and the geographic distribution of those mutations in healthy and diseased populations. We observed that several mutations thought to be disease causing occur in healthy populations, indicating an incomplete understanding of the condition and highlighting new research opportunities. We describe the functional environment around DHCR7, including pharmacological DHCR7 inhibitors and cholesterol and vitamin D synthesis. Using PubMed, we investigated the fetal outcomes following prenatal exposure to DHCR7 modulators. First-trimester exposure to DHCR7 inhibitors resulted in outcomes similar to those of known teratogens (50 vs 48% born-healthy). DHCR7 activity should be considered during drug development and prenatal toxicity assessment.
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Affiliation(s)
- M R Boland
- Department of Biomedical Informatics, Columbia University, New York, NY, USA.,Observational Health Data Sciences and Informatics, Columbia University, New York, NY, USA
| | - N P Tatonetti
- Department of Biomedical Informatics, Columbia University, New York, NY, USA.,Observational Health Data Sciences and Informatics, Columbia University, New York, NY, USA.,Department of Systems Biology, Columbia University, New York, NY, USA.,Department of Medicine, Columbia University, New York, NY, USA
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26
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Qu L, Jia J, Shi H, Luo Z. One-step synthesis of Fe3O4/carboxylate-rich carbon composite and its application for Cu(ii) removal. NEW J CHEM 2016. [DOI: 10.1039/c5nj02545a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A magnetically separable adsorbent, Fe3O4/carboxylate-rich carbon composite was synthesized via a facile one-step low temperature carbonization process.
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Affiliation(s)
- Lingling Qu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
- State Key Laboratory of Coordination Chemistry
| | - Jianzhong Jia
- School of The Environment
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Hefei Shi
- School of The Environment
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Zhijun Luo
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210093
- P. R. China
- School of The Environment
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Song X, Li L, Shi Q, Lehmler HJ, Fu J, Su C, Xia X, Song E, Song Y. Polychlorinated Biphenyl Quinone Metabolite Promotes p53-Dependent DNA Damage Checkpoint Activation, S-Phase Cycle Arrest and Extrinsic Apoptosis in Human Liver Hepatocellular Carcinoma HepG2 Cells. Chem Res Toxicol 2015; 28:2160-9. [PMID: 26451628 DOI: 10.1021/acs.chemrestox.5b00320] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Polychlorinated biphenyls (PCBs) are a group of persistent organic pollutants. The toxic behavior and mechanism of PCBs individuals and congeners have been extensively investigated. However, there is only limited information on their metabolites. Our previous studies have shown that a synthetic PCB metabolite, PCB29-pQ, causes oxidative damage with the evidence of cytotoxicity, genotoxicity, and mitochondrial-derived intrinsic apoptosis. Here, we investigate the effects of PCB29-pQ on DNA damage checkpoint activation, cell cycle arrest, and death receptor-related extrinsic apoptosis in human liver hepatocellular carcinoma HepG2 cells. Our results illustrate that PCB29-pQ increases the S-phase cell population by down-regulating cyclins A/D1/E, cyclin-dependent kinases (CDK 2/4/6), and cell division cycle 25A (CDC25A) and up-regulating p21/p27 protein expressions. PCB29-pQ also induces apoptosis via the up-regulation of Fas/FasL and the activation of caspase 8/3. Moreover, p53 plays a pivotal role in PCB29-pQ-induced cell cycle arrest and apoptosis via the activation of ATM/Chk2 and ATR/Chk1 checkpoints. Cell cycle arrest and apoptotic cell death were attenuated by the pretreatment with antioxidant N-acetyl-cysteine (NAC). Taken together, these results demonstrate that PCB29-pQ induces oxidative stress and promotes p53-dependent DNA damage checkpoint activation, S-phase cycle arrest, and extrinsic apoptosis in HepG2 cells.
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Affiliation(s)
- Xiufang Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Lingrui Li
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Qiong Shi
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Juanli Fu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Chuanyang Su
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Xiaomin Xia
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Erqun Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Yang Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
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Carreño NLV, Escote MT, Valentini A, McCafferty L, Stolojan V, Beliatis M, Mills CA, Rhodes R, Smith CTG, Silva SRP. Adsorbent 2D and 3D carbon matrices with protected magnetic iron nanoparticles. NANOSCALE 2015; 7:17441-17449. [PMID: 26441224 DOI: 10.1039/c5nr04499e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report on the synthesis of two and three dimensional carbonaceous sponges produced directly from graphene oxide (GO) into which functionalized iron nanoparticles can be introduced to render it magnetic. This simple, low cost procedure, wherein an iron polymeric resin precursor is introduced into the carbon framework, results in carbon-based materials with specific surface areas of the order of 93 and 66 m(2) g(-1), compared to approx. 4 m(2) g(-1) for graphite, decorated with ferromagnetic iron nanoparticles giving coercivity fields postulated to be 216 and 98 Oe, values typical for ferrite magnets, for 3.2 and 13.5 wt% Fe respectively. The strongly magnetic iron nanoparticles are robustly anchored to the GO sheets by a layer of residual graphite, on the order of 5 nm, formed during the pyrolysis of the precursor material. The applicability of the carbon sponges is demonstrated in their ability to absorb, store and subsequently elute an organic dye, Rhodamine B, from water as required. It is possible to regenerate the carbon-iron hybrid material after adsorption by eluting the dye with a solvent to which it has a high affinity, such as ethanol. The use of a carbon framework opens the hybrid materials to further chemical functionalization, for enhanced chemical uptake of contaminants, or co-decoration with, for example, silver nanoparticles for bactericidal properties. Such analytical properties, combined with the material's magnetic character, offer solutions for environmental decontamination at land and sea, wastewater purification, solvent extraction, and for the concentration of dilute species.
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Affiliation(s)
- N L V Carreño
- Materials Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS CEP 96010-610, Brazil.
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29
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Mi FL, Wu SJ, Chen YC. Combination of carboxymethyl chitosan-coated magnetic nanoparticles and chitosan-citrate complex gel beads as a novel magnetic adsorbent. Carbohydr Polym 2015; 131:255-63. [DOI: 10.1016/j.carbpol.2015.06.031] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 10/23/2022]
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Sahin U, de Thé H, Lallemand-Breitenbach V. PML nuclear bodies: assembly and oxidative stress-sensitive sumoylation. Nucleus 2015; 5:499-507. [PMID: 25482067 DOI: 10.4161/19491034.2014.970104] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
PML Nuclear Bodies (NBs) have fascinated cell biologists due to their exquisitely dynamic nature and their involvement in human diseases, notably acute promyelocytic leukemia. NBs, as well as their master organizer--the PML protein--exhibit multiple connections with stress responses. Initially viewed as a tumor suppressor, PML recently re-emerged as a multifaceted protein, capable of controlling numerous aspects of cellular homeostasis. NBs recruit many functionally diverse proteins and function as stress-regulated sumoylation factories. SUMO-initiated partner retention can subsequently facilitate a variety of other post-translational modifications, as well as partner degradation. With this newly elucidated central role of stress-enhanced sumoylation, it should now be possible to build a working model for the different NB-regulated cellular activities. Moreover, pharmacological manipulation of NB formation by interferons or oxidants holds the promise of clearing many undesirable proteins for clinical management of malignant, viral or neurodegenerative diseases.
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Affiliation(s)
- Umut Sahin
- a University Paris Diderot; Sorbonne Paris Cité ; Hôpital St. Louis ; Paris , France
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31
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Gene expression and pathway analysis of human hepatocellular carcinoma cells treated with cadmium. Toxicol Appl Pharmacol 2015; 288:399-408. [PMID: 26314618 DOI: 10.1016/j.taap.2015.08.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/14/2015] [Accepted: 08/18/2015] [Indexed: 12/12/2022]
Abstract
Cadmium (Cd) is a toxic and carcinogenic metal naturally occurring in the Earth's crust. A common route of human exposure is via diet and cadmium accumulates in the liver. The effects of Cd exposure on gene expression in human hepatocellular carcinoma (HepG2) cells were examined in this study. HepG2 cells were acutely-treated with 0.1, 0.5, or 1.0 μM Cd for 24h; or chronically-treated with 0.01, 0.05, or 0.1 μM Cd for three weeks and gene expression analysis was performed using Affymetrix GeneChip® Human Gene 1.0 ST Arrays. Acute and chronic exposures significantly altered the expression of 333 and 181 genes, respectively. The genes most upregulated by acute exposure included several metallothioneins. Downregulated genes included the monooxygenase CYP3A7, involved in drug and lipid metabolism. In contrast, CYP3A7 was upregulated by chronic Cd exposure, as was DNAJB9, an anti-apoptotic J protein. Genes downregulated following chronic exposure included the transcriptional regulator early growth response protein 1. Ingenuity Pathway Analysis revealed that the top networks altered by acute exposure were lipid metabolism, small molecule biosynthesis, cell morphology, organization, and development; while top networks altered by chronic exposure were organ morphology, cell cycle, cell signaling, and renal and urological diseases/cancer. Many of the dysregulated genes play important roles in cellular growth, proliferation, and apoptosis, and may be involved in carcinogenesis. In addition to gene expression changes, HepG2 cells treated with cadmium for 24h indicated a reduction in global levels of histone methylation and acetylation that persisted 72 h post-treatment.
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32
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Gao J, Roy S, Tong L, Argos M, Jasmine F, Rahaman R, Rakibuz-Zaman M, Parvez F, Ahmed A, Hore SK, Sarwar G, Slavkovich V, Yunus M, Rahman M, Baron JA, Graziano JH, Ahsan H, Pierce BL. Arsenic exposure, telomere length, and expression of telomere-related genes among Bangladeshi individuals. ENVIRONMENTAL RESEARCH 2015; 136:462-9. [PMID: 25460668 PMCID: PMC4264833 DOI: 10.1016/j.envres.2014.09.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 08/11/2014] [Accepted: 09/22/2014] [Indexed: 05/19/2023]
Abstract
BACKGROUND Inorganic arsenic is a carcinogen whose mode of action may involve telomere dysfunction. Recent epidemiological studies suggest that chronic arsenic exposure is associated with longer telomeres and altered expression of telomere-related genes in peripheral blood. In this study, we evaluated the association of urinary arsenic concentration with expression of telomere-related genes and telomere length in Bangladeshi individuals with a wide range of arsenic exposure through naturally contaminated drinking water. METHODS We used linear regression models to estimate associations between urinary arsenic and array-based expression measures for 69 telomere related genes using mononuclear cell RNA samples from 1799 individuals. Association between arsenic exposure and a qPCR-based telomere length measure was assessed among 167 individuals. RESULTS Urinary arsenic was positively associated with expression of WRN, and negatively associated with TERF2, DKC1, TERF2IP and OBFC1 (all P<0.00035, Bonferroni-corrected threshold). We detected interaction between urinary arsenic and arsenic metabolism efficiency in relation to expression of WRN (P for interaction =0.00008). In addition, we observed that very high arsenic exposure was associated with longer telomeres compared to very low exposure (P=0.02). DISCUSSION Our findings suggest that arsenic's carcinogenic mode of action may involve alteration of telomere maintenance and/or telomere damage. This study extends our knowledge regarding the effect of arsenic on telomere length and expression of telomere-related genes.
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Affiliation(s)
- Jianjun Gao
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Shantanu Roy
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Lin Tong
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Maria Argos
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Farzana Jasmine
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Ronald Rahaman
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA
| | | | - Faruque Parvez
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | | | - Samar K Hore
- International Center for Diarrheal Disease Research, Bangladesh, Dhaka, Bangladesh
| | | | - Vesna Slavkovich
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Mohammad Yunus
- International Center for Diarrheal Disease Research, Bangladesh, Dhaka, Bangladesh
| | | | - John A Baron
- University of North Carolina, Lineberger Comprehensive Cancer Center, Chapel Hill, NC 27514, USA
| | - Joseph H Graziano
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Habibul Ahsan
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA; Comprehensive Cancer Center, The University of Chicago, Chicago, IL 60637, USA; Departments of Medicine and Human Genetics, The University of Chicago, Chicago, IL 60637, USA
| | - Brandon L Pierce
- Department of Public Health Sciences, The University of Chicago, Chicago, IL 60637, USA; Comprehensive Cancer Center, The University of Chicago, Chicago, IL 60637, USA.
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33
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Sahin U, Ferhi O, Jeanne M, Benhenda S, Berthier C, Jollivet F, Niwa-Kawakita M, Faklaris O, Setterblad N, de Thé H, Lallemand-Breitenbach V. Oxidative stress-induced assembly of PML nuclear bodies controls sumoylation of partner proteins. ACTA ACUST UNITED AC 2014; 204:931-45. [PMID: 24637324 PMCID: PMC3998805 DOI: 10.1083/jcb.201305148] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PML multimerization into nuclear bodies following its oxidation promotes sumoylation and sequestration of partner proteins in these structures. The promyelocytic leukemia (PML) protein organizes PML nuclear bodies (NBs), which are stress-responsive domains where many partner proteins accumulate. Here, we clarify the basis for NB formation and identify stress-induced partner sumoylation as the primary NB function. NB nucleation does not rely primarily on intermolecular interactions between the PML SUMO-interacting motif (SIM) and SUMO, but instead results from oxidation-mediated PML multimerization. Oxidized PML spherical meshes recruit UBC9, which enhances PML sumoylation, allow partner recruitment through SIM interactions, and ultimately enhance partner sumoylation. Intermolecular SUMO–SIM interactions then enforce partner sequestration within the NB inner core. Accordingly, oxidative stress enhances NB formation and global sumoylation in vivo. Some NB-associated sumoylated partners also become polyubiquitinated by RNF4, precipitating their proteasomal degradation. As several partners are protein-modifying enzymes, NBs could act as sensors that facilitate and confer oxidative stress sensitivity not only to sumoylation but also to other post-translational modifications, thereby explaining alterations of stress response upon PML or NB loss.
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Affiliation(s)
- Umut Sahin
- Université Paris Diderot, Sorbonne Paris Cité, Hôpital St. Louis 1, 75475 Paris Cedex 10, France
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Fukushima T, Hara-Yamamura H, Urai M, Kasuga I, Kurisu F, Miyoshi T, Kimura K, Watanabe Y, Okabe S. Toxicity assessment of chlorinated wastewater effluents by using transcriptome-based bioassays and Fourier transform mass spectrometry (FT-MS) analysis. WATER RESEARCH 2014; 52:73-82. [PMID: 24462929 DOI: 10.1016/j.watres.2014.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/24/2013] [Accepted: 01/01/2014] [Indexed: 06/03/2023]
Abstract
Effects of chlorination on the toxicity of wastewater effluents treated by activated sludge (AS) and submerged membrane bioreactor (S-MBRB) systems to HepG2 human hepatoblastoma cells were investigated. In addition to the cytotoxicity and genotoxicity assays, the DNA microarray-based transcriptome analysis was performed to evaluate the change in types of biological impacts on HepG2 cells of the effluents by chlorination. Effluent organic matter (EfOM) and disinfection by-products (DBPs) were also characterized by using Fourier transform mass spectrometry (FT-MS). Although no significant induction of genotoxicity was observed by chlorination for both effluents, the chlorination elevated the cytotoxicity of AS effluent but reduced that of S-MBRB effluent. The FT-MS analyses revealed that more DBPs including nitrogenated DBPs (N-DBPs) were formed in the AS effluent than in the S-MBRB effluent by chlorination, supporting the increased cytotoxicity of AS effluent. The lower O/C ratio of S-MBRB EfOM suggests that a large number of organic molecules were detoxified by chlorination, which consequently decreased the cytotoxicity of S-MBRB effluent. Integration of all the results highlights that both cytotoxicity and biological impacts of chlorinated wastewater effluents were clearly dependent on the EfOM characteristics such as DBPs and O/C ratio, namely, on types of treatment systems.
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Affiliation(s)
- Toshikazu Fukushima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Hiroe Hara-Yamamura
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Makoto Urai
- Research Center for Water Environment Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ikuro Kasuga
- Research Center for Water Environment Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Futoshi Kurisu
- Research Center for Water Environment Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taro Miyoshi
- Center for Environmental Nano and Bio Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Katsuki Kimura
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Yoshimasa Watanabe
- Center for Environmental Nano and Bio Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
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Rudgalvyte M, VanDuyn N, Aarnio V, Heikkinen L, Peltonen J, Lakso M, Nass R, Wong G. Methylmercury exposure increases lipocalin related (lpr) and decreases activated in blocked unfolded protein response (abu) genes and specific miRNAs in Caenorhabditis elegans. Toxicol Lett 2013; 222:189-96. [PMID: 23872261 DOI: 10.1016/j.toxlet.2013.07.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 07/10/2013] [Accepted: 07/10/2013] [Indexed: 01/15/2023]
Abstract
Methylmercury (MeHg) is a persistent environmental and dietary contaminant that causes serious adverse developmental and physiologic effects at multiple cellular levels. In order to understand more fully the consequences of MeHg exposure at the molecular level, we profiled gene and miRNA transcripts from the model organism Caenorhabditis elegans. Animals were exposed to MeHg (10 μM) from embryo to larval 4 (L4) stage and RNAs were isolated. RNA-seq analysis on the Illumina platform revealed 541 genes up- and 261 genes down-regulated at a cutoff of 2-fold change and false discovery rate-corrected significance q < 0.05. Among the up-regulated genes were those previously shown to increase under oxidative stress conditions including hsp-16.11 (2.5-fold), gst-35 (10.1-fold), and fmo-2 (58.5-fold). In addition, we observed up-regulation of 6 out of 7 lipocalin related (lpr) family genes and down regulation of 7 out of 15 activated in blocked unfolded protein response (abu) genes. Gene Ontology enrichment analysis highlighted the effect of genes related to development and organism growth. miRNA-seq analysis revealed 6-8 fold down regulation of mir-37-3p, mir-41-5p, mir-70-3p, and mir-75-3p. Our results demonstrate the effects of MeHg on specific transcripts encoding proteins in oxidative stress responses and in ER stress pathways. Pending confirmation of these transcript changes at protein levels, their association and dissociation characteristics with interaction partners, and integration of these signals, these findings indicate broad and dynamic mechanisms by which MeHg exerts its harmful effects.
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Affiliation(s)
- Martina Rudgalvyte
- A. I. Virtanen Institute for Molecular Sciences, Department of Neurobiology, University of Eastern Finland, Kuopio, Finland.
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Shao J, Katika MR, Schmeits PCJ, Hendriksen PJM, van Loveren H, Peijnenburg AACM, Volger OL. Toxicogenomics-based identification of mechanisms for direct immunotoxicity. Toxicol Sci 2013; 135:328-46. [PMID: 23824090 DOI: 10.1093/toxsci/kft151] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Compounds with direct immunotoxic properties, including metals, mycotoxins, agricultural pesticides, and industrial chemicals, form potential human health risks due to exposure through food, drinking water, and the environment. Insights into the mechanisms of action are currently lacking for the majority of these direct immunotoxicants. Therefore, the present work aimed to gain insights into the molecular mechanisms underlying direct immunotoxicity. To this end, we assessed in vitro the effects of 31 test compounds on the transcriptome of the human Jurkat T-cell line. These compounds included direct immunotoxicants, immunosuppressive drugs with different mode of actions, and nonimmunotoxic control chemicals. Pathway analysis of the microarray data allowed us to identify canonical pathways and Gene Ontology processes that were transcriptionally regulated in common by immunotoxicants (1) with structural similarities, such as tributyltin chloride and tributyltin oxide that activated the retinoic acid/X receptor signaling pathway and (2) without structural similarities, such as As2O3, dibutyltin chloride, diazinon, MeHg, ochratoxin A (OTA), S9-treated OTA, S9-treated cyclophosphamide, and S9-treated benzo[a]pyrene, which activated unfolded protein response, and FTY720, lindane, and propanil, which activated the cholesterol biosynthesis pathway. In addition, processes uniquely affected by individual immunotoxicants were identified, such as the induction of Notch receptor signaling and the downregulation of acute-phase response genes by OTA. These findings were validated by quantitative real-time PCR analysis of genes involved in these processes. Our study indicated that diverse modes of action are involved in direct immunotoxicity and that a set of pathways or genes, rather than one single gene, can be used to screen compounds for direct immunotoxicity.
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Affiliation(s)
- Jia Shao
- * RIKILT-Institute of Food Safety, Wageningen University and Research Centre, 6700 AE Wageningen, The Netherlands
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37
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Hara-Yamamura H, Nakashima K, Hoque A, Miyoshi T, Kimura K, Watanabe Y, Okabe S. Evaluation of whole wastewater effluent impacts on HepG2 using DNA microarray-based transcriptome analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5425-5432. [PMID: 23590814 DOI: 10.1021/es4002955] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
DNA microarray-based transcriptome analysis with human hepatoma HepG2 cells was applied to evaluate the impacts of whole wastewater effluents from the membrane bioreactors (MBRs) and the activated sludge process (AS). In addition, the conventional bioassays (i.e., cytotoxicity tests and bioluminescence inhibition test), which were well-established for the evaluation of the overall effluent toxicity, were also performed for the same samples. Transcriptome analysis revealed that 2 to 926 genes, which were categorized to 0 to 225 biological processes, were differentially expressed after exposure to the effluents and the raw wastewater. Among the tested effluents, the effluent from a MBR operated at a relatively long solid retention time (i.e., 40 days) and small membrane pore size (i.e., 0.03 μm) showed the least impacts on the HepG2 even at the level comparable to tap water. The observed gene expression responses were in good agreement with the results of cytotoxicity tests, and provided additional molecular mechanistic information on adverse effects occurred in the sublethal region. Furthermore, the genes related to "lipid metabolism", "response to endogenous stimulus", and "response to inorganic substance" were selected as potential genetic markers, and their expression levels were quantified to evaluate the cellular impacts and treatability of wastewater effluents. Although the harmful impacts and innocuous impacts could not be distinguished at present, the results demonstrated that the DNA microarray-based transcriptome analysis with human HepG2 cells was a powerful tool to rapidly and comprehensively evaluate impacts of whole wastewater effluents.
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Affiliation(s)
- Hiroe Hara-Yamamura
- Graduate School of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628 Japan
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Song M, Song MK, Choi HS, Ryu JC. Monitoring of deiodinase deficiency based on transcriptomic responses in SH-SY5Y cells. Arch Toxicol 2013; 87:1103-13. [PMID: 23397585 DOI: 10.1007/s00204-013-1018-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 01/22/2013] [Indexed: 12/20/2022]
Abstract
Iodothyronine deiodinase types I, II, and III (D1, D2, and D3, respectively), which constitute a family of selenoenzymes, activate and inactivate thyroid hormones through the removal of specific iodine moieties from thyroxine and its derivatives. These enzymes are important in the biological effects mediated by thyroid hormones. The expression of activating and inactivating deiodinases plays a critical role in a number of cell systems, including the neuronal system, during development as well as in adult vertebrates. To investigate deiodinase-disrupting chemicals based on transcriptomic responses, we examined differences in gene expression profiles between T3-treated and deiodinase-knockdown SH-SY5Y cells using microarray analysis and quantitative real-time RT-PCR. A total of 1,558 genes, consisting of 755 upregulated and 803 downregulated genes, were differentially expressed between the T3-treated and deiodinase-knockdown cells. The expression levels of 10 of these genes (ID2, ID3, CCL2, TBX3, TGOLN2, C1orf71, ZNF676, GULP1, KLF9, and ITGB5) were altered by deiodinase-disrupting chemicals (2,3,7,8-tetrachlorodibenzo-p-dioxin, polychlorinated biphenyls, propylthiouracil, iodoacetic acid, methylmercury, β-estradiol, methimazole, 3-methylcholanthrene, aminotriazole, amiodarone, cadmium chloride, dimethoate, fenvalerate, octylmethoxycinnamate, iopanoic acid, methoxychlor, and 4-methylbenzylidene-camphor). These genes are potential biomarkers for detecting deiodinase deficiency and predicting their effects on thyroid hormone production.
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Affiliation(s)
- Mee Song
- Cellular and Molecular Toxicology Laboratory, Center for Integrated Risk Research, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul, Republic of Korea
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Hafuka A, Taniyama H, Son SH, Yamada K, Takahashi M, Okabe S, Satoh H. BODIPY-Based Ratiometric Fluoroionophores with Bidirectional Spectral Shifts for the Selective Recognition of Heavy Metal Ions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2013. [DOI: 10.1246/bcsj.20120235] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Akira Hafuka
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University
| | - Hiroki Taniyama
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University
| | - Sang-Hyun Son
- Section of Materials Science, Faculty of Environmental Earth Science, Hokkaido University
| | - Koji Yamada
- Section of Materials Science, Faculty of Environmental Earth Science, Hokkaido University
| | - Masahiro Takahashi
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University
| | - Hisashi Satoh
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University
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Schmitz ML, Grishina I. Regulation of the tumor suppressor PML by sequential post-translational modifications. Front Oncol 2012; 2:204. [PMID: 23293771 PMCID: PMC3533183 DOI: 10.3389/fonc.2012.00204] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 12/11/2012] [Indexed: 01/08/2023] Open
Abstract
Post-translational modifications (PTMs) regulate multiple biological functions of the promyelocytic leukemia (PML) protein and also the fission, disassembly, and rebuilding of PML nuclear bodies (PML-NBs) during the cell cycle. Pathway-specific PML modification patterns ensure proper signal output from PML-NBs that suit the specific functional requirements. Here we comprehensively review the signaling pathways and enzymes that modify PML and also the oncogenic PML-RARα fusion protein. Many PTMs occur in a hierarchical and timely organized fashion. Phosphorylation or acetylation constitutes typical starting points for many PML modifying events, while degradative ubiquitination is an irreversible end point of the modification cascade. As this hierarchical organization of PTMs frequently turns phosphorylation events as primordial events, kinases or phosphatases regulating PML phosphorylation may be interesting drug targets to manipulate the downstream modifications and thus the stability and function of PML or PML-RARα.
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Affiliation(s)
- M Lienhard Schmitz
- Department of Biochemistry, Medical Faculty, Justus Liebig University, German Center for Lung Research Giessen, Germany
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Fusarium mycotoxin-contaminated wheat containing deoxynivalenol alters the gene expression in the liver and the jejunum of broilers. Animal 2012; 6:278-91. [PMID: 22436186 DOI: 10.1017/s1751731111001601] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The effects of mycotoxins in the production of animal feed were investigated using broiler chickens. For the feeding trial, naturally Fusarium mycotoxin-contaminated wheat was used, which mainly contained deoxynivalenol (DON). The main effects of DON are reduction of the feed intake and reduced weight gain of broilers. At the molecular level, DON binds to the 60 S ribosomal subunit and subsequently inhibits protein synthesis at the translational level. However, little is known about other effects of DON, for example, at the transcriptional level. Therefore, a microarray analysis was performed, which allows the investigation of thousands of transcripts in one experiment. In the experiment, 20 broilers were separated into four groups of five broilers each at day 1 after hatching. The diets consisted of a control diet and three diets with calculated, moderate concentrations of 1.0, 2.5 and 5.0 mg DON/kg feed, which was attained by exchanging uncontaminated wheat with naturally mycotoxin-contaminated wheat up to the intended DON concentration. The broilers were held at standard conditions for 23 days. Three microarrays were used per group to determine the significant alterations of the gene expression in the liver (P < 0.05), and qPCR was performed on the liver and the jejunum to verify the results. No significant difference in BW, feed intake or feed conversion rate was observed. The nutrient uptake into the hepatic and jejunal cells seemed to be influenced by genes: SLC2A5 (fc: -1.54, DON2.5), which facilitates glucose and fructose transport and SLC7A10 (fc: +1.49, DON5), a transporter of d-serine and other neutral amino acids. In the jejunum, the palmitate transport might be altered by SLC27A4 (fc: -1.87, DON5) and monocarboxylates uptake by SLC16A1 (fc: -1.47, DON5). The alterations of the SLC gene expression may explain the reduced weight gain of broilers chronically exposed to DON-contaminated wheat. The decreased expressions of EIF2AK3 (fc: -1.29, DON2.5/5) and DNAJC3 (fc: -1.44, DON2.5) seem to be related to the translation inhibition. The binding of DON to the 60 S ribosomal subunit and the subsequent translation inhibition might be counterbalanced by the downregulation of EIF2AK3 and DNAJC3. The genes PARP1, MPG, EME1, XPAC, RIF1 and CHAF1B are mainly related to single-strand DNA modifications and showed an increased expression in the group with 5 mg DON/kg feed. The results indicate that significantly altered gene expression was already occurring at 2.5 mg DON/kg feed.
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de Thé H, Le Bras M, Lallemand-Breitenbach V. The cell biology of disease: Acute promyelocytic leukemia, arsenic, and PML bodies. J Cell Biol 2012; 198:11-21. [PMID: 22778276 PMCID: PMC3392943 DOI: 10.1083/jcb.201112044] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 06/15/2012] [Indexed: 12/12/2022] Open
Abstract
Acute promyelocytic leukemia (APL) is driven by a chromosomal translocation whose product, the PML/retinoic acid (RA) receptor α (RARA) fusion protein, affects both nuclear receptor signaling and PML body assembly. Dissection of APL pathogenesis has led to the rediscovery of PML bodies and revealed their role in cell senescence, disease pathogenesis, and responsiveness to treatment. APL is remarkable because of the fortuitous identification of two clinically effective therapies, RA and arsenic, both of which degrade PML/RARA oncoprotein and, together, cure APL. Analysis of arsenic-induced PML or PML/RARA degradation has implicated oxidative stress in the biogenesis of nuclear bodies and SUMO in their degradation.
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Affiliation(s)
- Hugues de Thé
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 944, Equipe labellisée par la Ligue Nationale contre le Cancer, 2 University Paris-Diderot, Sorbonne Paris Cité, Paris, France.
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Pan TL, Wang PW, Chen CC, Fang JY, Sintupisut N. Functional proteomics reveals hepatotoxicity and the molecular mechanisms of different forms of chromium delivered by skin administration. Proteomics 2012; 12:477-89. [DOI: 10.1002/pmic.201100055] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 11/09/2011] [Accepted: 11/17/2011] [Indexed: 12/11/2022]
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Curing APL through PML/RARA degradation by As2O3. Trends Mol Med 2012; 18:36-42. [DOI: 10.1016/j.molmed.2011.10.001] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 10/03/2011] [Accepted: 10/05/2011] [Indexed: 11/19/2022]
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45
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Olsvik PA, Amlund H, Torstensen BE. Dietary lipids modulate methylmercury toxicity in Atlantic salmon. Food Chem Toxicol 2011; 49:3258-71. [DOI: 10.1016/j.fct.2011.09.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 09/01/2011] [Accepted: 09/20/2011] [Indexed: 11/29/2022]
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46
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Cross experimental analysis of microarray gene expression data from volatile organic compounds treated targets. Mol Cell Toxicol 2011. [DOI: 10.1007/s13273-011-0029-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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47
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Mahmoudi M, Laurent S, Shokrgozar MA, Hosseinkhani M. Toxicity evaluations of superparamagnetic iron oxide nanoparticles: cell "vision" versus physicochemical properties of nanoparticles. ACS NANO 2011; 5:7263-7276. [PMID: 21838310 DOI: 10.1021/nn2021088] [Citation(s) in RCA: 212] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In the last few decades, nanoparticles (NPs) have been recognized as promising candidates for starting a new revolution in science and technology due to their unusual properties, attracting the attention of physicists, chemists, biologists, and engineers. The aim of this study is to evaluate the toxicities (at both cellular and molecular levels) of three forms of superparamagnetic iron oxide nanoparticles (SPIONs) of various surface chemistries (COOH, plain, and NH(2)) through the comparison with gene expression patterns of three cell types (i.e., human heart, brain, and kidney). For this purpose, both an MTT assay and a DNA microarray analysis were applied in three human cell lines--HCM (heart), BE-2-C (brain), and 293T (kidney)--under the exposure to SPIONs-COOH, SPIONs-NH(2), and bare SPIONs. The specific gene alteration and hierarchical clustering revealed that SPIONs-COOH altered genes associated with cell proliferative responses due to their reactive oxygen species (ROS) properties. It was also found that the cell type can have quite a significant role in the definition of suitable pathways for detoxification of NPs, which has deep implications for the safe and high yield design of NPs for biomedical applications and will require serious consideration in the future.
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Affiliation(s)
- Morteza Mahmoudi
- National Cell Bank, Pasteur Institute of Iran, Tehran, 1316943551 Iran.
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Song M, Kim YJ, Song MK, Choi HS, Park YK, Ryu JC. Identification of classifiers for increase or decrease of thyroid peroxidase activity in the FTC-238/hTPO recombinant cell line. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:7906-14. [PMID: 21809831 DOI: 10.1021/es200475k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Thyroid peroxidase (TPO) plays an important role in thyroid hormone biosynthesis, as it catalyzes all of the essential steps in iodide organification. TPO activity can be detected using the guaiacol assay; however, this assay is complex and very time-consuming. Therefore, we focused on devising a simplified method using microarrays to detect changes in TPO activity, which is a target for disruption of the thyroid hormone axis. These experiments have systematically assessed the potential utility of transcriptomic end points as enhancements to the guaiacol assay. Previously, we demonstrated that benzophenone-2, benzophenone, perfluorooctane sulfonate, bisphenol A bis ether, and vinclozolin decreased TPO activity, and that dibutyl phthalate, carbaryl, dibenzo(a,h)anthracene, benzo(a)pyrene, and methylmercury increased TPO activity. In this work, we used human oligonucleotide chips to examine changes in the gene expression profile of FTC-238 human follicular thyroid carcinoma cells expressing human recombinant TPO, after exposure of the cells to TPO activity-disrupting agents. We identified 362 classifiers that could predict the effect of the toxicants on TPO activity with about 70% accuracy. These classifiers are potential markers for predicting the effects of chemicals on thyroid hormone production.
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Affiliation(s)
- Mee Song
- Cellular and Molecular Toxicology Laboratory, Korea Institute of Science and Technology (KIST), Republic of Korea
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Cheng F, Theodorescu D, Schulman IG, Lee JK. In vitro transcriptomic prediction of hepatotoxicity for early drug discovery. J Theor Biol 2011; 290:27-36. [PMID: 21884709 DOI: 10.1016/j.jtbi.2011.08.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 07/27/2011] [Accepted: 08/11/2011] [Indexed: 01/08/2023]
Abstract
Liver toxicity (hepatotoxicity) is a critical issue in drug discovery and development. Standard preclinical evaluation of drug hepatotoxicity is generally performed using in vivo animal systems. However, only a small number of preselected compounds can be examined in vivo due to high experimental costs. A more efficient yet accurate screening technique that can identify potentially hepatotoxic compounds in the early stages of drug development would thus be valuable. Here, we develop and apply a novel genomic prediction technique for screening hepatotoxic compounds based on in vitro human liver cell tests. Using a training set of in vivo rodent experiments for drug hepatotoxicity evaluation, we discovered common biomarkers of drug-induced liver toxicity among six heterogeneous compounds. This gene set was further triaged to a subset of 32 genes that can be used as a multi-gene expression signature to predict hepatotoxicity. This multi-gene predictor was independently validated and showed consistently high prediction performance on five test sets of in vitro human liver cell and in vivo animal toxicity experiments. The predictor also demonstrated utility in evaluating different degrees of toxicity in response to drug concentrations, which may be useful not only for discerning a compound's general hepatotoxicity but also for determining its toxic concentration.
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Affiliation(s)
- Feng Cheng
- Department of Biophysics, University of Virginia, Charlottesville, VA, USA.
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50
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Gou N, Gu AZ. A new Transcriptional Effect Level Index (TELI) for toxicogenomics-based toxicity assessment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:5410-5417. [PMID: 21612275 DOI: 10.1021/es200455p] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study proposes and demonstrates the potential application of a new Transcriptional Effect Level Index (TELI) to convert the information-rich toxicogenomic data into integrated and quantitative endpoints. A library of transcriptional fusions of green fluorescent protein (GFP) that includes different promoters for 91 stress-related genes in E. coli K12, MG1655 is employed to evaluate the gene expression alteration induced by exposure to four nanomaterials (NMs), nano silver (nAg), nano titanium dioxide anatase (nTiO₂_a), nano titanium dioxide rutile (nTiO₂_r), and fullerene soot. TELI is determined for each toxicogenomic assay, and it incorporates the number and identity of genes that had altered expression, the magnitude of alteration, and the temporal pattern of gene expression change in response to toxicant exposure. TELI values exhibit a characteristic "sigmoid" shaped toxicity dose-response curve, based on which TELI(MAX) (the maximal value of TELI), TELI50 (concentration that yields half of TELI(MAX)), NOTEL(TELI) (TELI-based no observed transcriptional effect level), and Slope(TELI) (the slope of TELI-dose response curve) are obtained. TELI-based endpoints are compared to currently used endpoints such as EC50 and no observed transcriptional effect level (NOTEL). The agreement of NOTEL(TELI) and NOTEL values validates the concept and application of TELI. Multiple endpoints derived from TELI can describe the dose response behavior and characteristics more completely and holistically than single points such as NOTEL alone. TELI values determined for genes in each stress response category (e.g., oxidative stress, DNA repair) indicate mode of action (MOA)-related comparative transcriptional level toxicity among compounds, and it reveals detailed information of toxic response pathways such as different DNA damage and repair mechanisms among the NMs. This study presents a methodology for converting the rich toxicogenomic information into a readily usable and transferable format that can be potentially linked to regulation endpoints and incorporated into a decision-making framework.
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Affiliation(s)
- Na Gou
- Department of Civil & Environmental Engineering, Northeastern University, Boston, Massachusetts 02115, USA
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