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Hu S, Li X, He F, Qi Y, Zhang B, Liu R. Cytotoxicity of emerging halophenylacetamide disinfection byproducts in drinking water: Mechanism and prediction. Water Res 2024; 256:121562. [PMID: 38604064 DOI: 10.1016/j.watres.2024.121562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 03/22/2024] [Accepted: 03/31/2024] [Indexed: 04/13/2024]
Abstract
Halophenylacetamides (HPAcAms) have been identified as a new group of nitrogenous aromatic disinfection byproducts (DBPs) in drinking water, but the toxicity mechanisms associated with HPAcAms remain almost completely unknown. In this work, the cytotoxicity of HPAcAms in human hepatoma (HepG2) cells was evaluated, intracellular oxidative stress/damage levels were analyzed, their binding interactions with antioxidative enzyme were explored, and a quantitative structure-activity relationship (QSAR) model was established. Results indicated that the EC50 values of HPAcAms ranged from 2353 μM to 9780 μM, and the isomeric structure as well as the type and number of halogen substitutions could obviously induce the change in the cytotoxicity of HPAcAms. Upon exposure to 2-(3,4-dichlorophenyl)acetamide (3,4-DCPAcAm), various important biomarkers linked to oxidative stress and damage, such as reactive oxygen species, 8‑hydroxy-2-deoxyguanosine, and cell apoptosis, exhibited a significant increase in a dose-dependent manner. Moreover, 3,4-DCPAcAm could directly bind with Cu/Zn-superoxide dismutase and induce the alterations in the structure and activity, and the formation of complexes was predominantly influenced by the van der Waals force and hydrogen bonding. The QSAR model supported that the nucleophilic reactivity as well as the molecular compactness might be highly important in their cytotoxicity mechanisms in HepG2 cells, and 2-(2,4-dibromophenyl)acetamide and 2-(3,4-dibromophenyl)acetamide deserved particular attention in future studies due to the relatively higher predicted cytotoxicity. This study provided the first comprehensive investigation on the cytotoxicity mechanisms of HPAcAm DBPs.
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Affiliation(s)
- Shaoyang Hu
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, 266237, China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, 266237, China
| | - Falin He
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, 266237, China
| | - Yuntao Qi
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, 266237, China
| | - Beibei Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Rutao Liu
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, 266237, China.
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2
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Wu K, Ouyang M, Luo Y, Xu M, Ren G, An J, Zheng K, Shang Y, Zeng X, Yu Z. Characteristics and potential cytotoxicity of halogenated organic compounds in shale gas wastewater-impacted surface waters in Chongqing area, China. Sci Total Environ 2024; 912:169226. [PMID: 38101627 DOI: 10.1016/j.scitotenv.2023.169226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Recent screening surveys have shown the presence of unknown source halogenated organic compounds (HOCs) in shale gas wastewater. However, their occurrence, profile, transport in surrounding surface water and environmental risk potentials remain unclear. Here, a method for the extraction and quantitative determination of 13 HOCs in water by solid phase extraction combined with gas chromatography-mass spectrometry (GC-MS) was established. All of the targeted HOCs were detected and peaked at the outfall, while these contaminants were generally not detected in samples upstream of the outfall, suggesting that these contaminants originated from the discharge of shale gas wastewater; this was further supported by the fact that these pollutants were generally detected in downstream samples, with a tendency for pollutant concentrations to decrease progressively with increasing distance from the outfall. However,different HOCs had different transport potential in water. In addition, the toxicological effects of typical HOCs were evaluated using HepG2 as a model cell. The results indicated that diiodoalkanes suppressed HepG2 cell proliferation and induced ROS generation in a concentration-dependent manner. Mechanistic studies showed that diiodoalkanes induced apoptosis in HepG2 cells via the ROS-mediated mitochondrial pathway, decreasing mitochondrial membrane potential and increasing intercellular ATP and Ca2+ levels. On the other hand, RT-qPCR and Western blot assays revealed that the SLC7A11/GPX4 signaling pathway and HO-1 regulation of ferritin autophagy-dependent degradation (HO-1/FTL) pathway were involved in the ferroptosis pathway induced by diiodoalkane in HepG2 cells. Our study not only elucidates the contamination profiles and transport of HOCs in surface water of typical shale gas extraction areas in China, but also reveals the toxicity mechanism of typical diiodoalkane.
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Affiliation(s)
- Kangming Wu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Minghui Ouyang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yihao Luo
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Maoyuan Xu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Guofa Ren
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China.
| | - Jing An
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Kewen Zheng
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yu Shang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xiangying Zeng
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
| | - Zhiqiang Yu
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China.
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Peng H, Wang H, Li W, Jing C, Zhang W, Zhao H, Hu F. Life-cycle exposure to tris (2-chloroethyl) phosphate (TCEP) causes alterations in antioxidative status, ion regulation and histology of zebrafish gills. Comp Biochem Physiol C Toxicol Pharmacol 2023; 274:109746. [PMID: 37717676 DOI: 10.1016/j.cbpc.2023.109746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 09/04/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
Tris (2-chloroethyl) phosphate (TCEP) has been receiving great concerns owing to its ubiquitous occurrence in various environmental compartments and potential risks to wildlife and humans. Gill is structural basis for ion regulation and homeostasis in fish and susceptible to xenobiotics. However, current knowledge on the impacts of long-term exposure to TCEP on the structure and physiological function of fish gills are insufficient. In this work, zebrafish were exposed to environmental realistic concentrations (0.8, 4, 20 and 100 μg/L) of TCEP from 3 h post ferterlization (hpf) till 120 days post ferterlization (dpf). Our results demonstrated that life-cycle exposure to TCEP significantly decreased the activity of glutathione S-transferase (GST), but elevated the activities of antioxidative enzymes including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and increased malondialdehyde (MDA) content in zebrafish gills. Gene transcription analysis implied that the mRNA expressions of antioxidant-related genes (nrf2, cat and nqo1) were induced, while the transcription of gstα1, hmox1, keap1 were down-regulated, indicating that Nrf2-Keap1 pathway might be activated to defend the oxidative stress induced by TCEP. Additionally, the ion homeostasis was disrupted by TCEP exposure, evidenced by reduced activities of Na+/K+-ATPase (NKA), Ca2+-ATPase and Mg2+-ATPase and downregulated transcription levels of ncc, nkcc, cftr and clc-3. Besides, whole-life exposure to TCEP resulted in a series of structural damages to gills, including epithelial lifting, epithelial rupture, telangiectasis, vacuolation, edema and shortened gill lamellae. Overall, our results demonstrated that long-term TCEP exposure could induce oxidative stress, affect ion regulation and cause histological changes in zebrafish gills.
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Affiliation(s)
- Hangke Peng
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hongkai Wang
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wen Li
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chen Jing
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Weiwei Zhang
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Haocheng Zhao
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fengxiao Hu
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Wang Y, Wang Z, Xue Q, Zhen L, Wang Y, Cao J, Liu Y, Khan A, Zhao T, Cheng G. Effect of ultra-high pressure pretreatment on the phenolic profiles, antioxidative activity and cytoprotective capacity of different phenolic fractions from Que Zui tea. Food Chem 2023; 409:135271. [PMID: 36587513 DOI: 10.1016/j.foodchem.2022.135271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 12/10/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
This study aims to explore whether ultra-high pressure (UHP) pre-treatment strengthened the bioaccessibility and bioactivities of the free (QF), esterified (QE) and insoluble-bound phenolics (QIB) from Que Zui tea (QT). The results revealed that the extraction yields, the total phenolic (TPC) and total flavonoid contents (TFC) of three phenolic fractions from QT were markedly increased after ultra-high pressure (UHP) processing (p < 0.05). A total of 19 and 20 compounds were characterized and quantified in non- and UHP-treated QT, respectively, including the content of 6'-O-caffeoylarbutin (11775.68 and 13248.87 μg/g of dry extract) was highest in QF, the content of caffeic acid was highest in QE (2131.58 and 7362.99 μg/g of dry extract) and QIB (9151.89 and 10930.82 μg/g of dry extract). QF, QE and QIB from QT after UHP processing had better antioxidant, ROS scavenging, and anti-apoptosis effects. The possible mechanism of cytoprotective effect was related to Keap1-Nrf2 pathway.
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Affiliation(s)
- Yongpeng Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhengxuan Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Qingwang Xue
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China
| | - Li Zhen
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yudan Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, China
| | - Jianxin Cao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yaping Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Tianrui Zhao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Guiguang Cheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
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Jiang L, Luo J, Wei W, Song M, Shi W, Li A, Zhou Q, Pan Y. Comparative cytotoxicity analyses of disinfection byproducts in drinking water using dimensionless parameter scaling method: Effect of halogen substitution type and number. Water Res 2023; 240:120087. [PMID: 37247438 DOI: 10.1016/j.watres.2023.120087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 05/31/2023]
Abstract
Up to date, over 700 disinfection byproducts (DBPs) have been detected and identified in drinking water. It has been recognized that cytotoxicity of DBPs varied significantly among groups. Even within the same group, cytotoxicity of different DBP species was also different due to different halogen substitution types and numbers. However, it is still difficult to quantitatively determine the inter-group cytotoxicity relationships of DBPs under the effect of halogen substitution in different cell lines, especially when a large number of DBP groups and multiple cytotoxicity cell lines are involved. In this study, a powerful dimensionless parameter scaling method was adopted to quantitatively determine the relationship of halogen substitution and the cytotoxicity of various DBP groups in three cell lines (i.e., the human breast carcinoma (MVLN), Chinese hamster ovary (CHO), and human hepatoma (Hep G2) cell cytotoxicity) with no need to consider their absolute values and other influences. By introducing the dimensionless parameters Dx-orn-speciescellline and D¯x-orn-speciescellline, as well as their corresponding linear regression equation coefficients ktypeornumbercellline and k¯typeornumbercellline, the strength and trend of halogen substitution influences on the relative cytotoxic potency could be determined. It was found that the effect of halogen substitution type and number on the cytotoxicity of DBPs followed the same patterns in the three cell lines. The CHO cell cytotoxicity was the most sensitive cell line to evaluate the effect of halogen substitution on the aliphatic DBPs, whereas the MVLN cell cytotoxicity was the most sensitive cell line to evaluate the effect of halogen substitution on the cyclic DBPs. Notably, seven quantitative structure activity relationship (QSAR) models were established, which could not only predict the cytotoxicity data of DBPs, but also help to explain and verify the patterns of halogen substitution effect on cytotoxicity of DBPs.
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Affiliation(s)
- Lu Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Jiayi Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wenzhe Wei
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Maoyong Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Wei Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China.
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Dong M, Ding Y, Liu Y, Xu Z, Hong H, Sun H, Huang X, Yu X, Chen Q. Molecular insights of 2,6-dichlorobenzoquinone-induced cytotoxicity in zebrafish embryo: Activation of ROS-mediated cell cycle arrest and apoptosis. Environ Toxicol 2023; 38:694-700. [PMID: 36454668 DOI: 10.1002/tox.23721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/18/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
2,6-dichloro-1,4-benzoquinone (2,6-DCBQ), as an emerging disinfection by-product, has been frequently detected in waters, posing potential health risk on public health. Although some studies have pointed out that 2,6-DCBQ exposure can induce cytotoxicity, limited information is available for underlying mechanism for 2,6-DCBQ-induced cytotoxicity. To explore this mechanism, we assessed the levels of reactive oxygen species (ROS), acridine orange (AO) staining, and the mRNA transcriptions of genes (Chk2, Cdk2, Ccna, Ccnb and Ccne) involved in cell-cycle and genes (p53, bax, bcl-2 and caspase 3) involved in apoptosis in zebrafish embryo, after exposed to different concentrations (10, 30, 60, 90 and 120 μg/L) of 2,6-DCBQ for 72 h. Our results indicated that 2,6-DCBQ exposure induced ROS generation and cell apoptosis, and disturbed the mRNA transcription of genes related to cell cycle and apoptosis in zebrafish embryo. Moreover, we also found that 30 ~ 60 μg/L 2,6-DCBQ is the important transition from cell-cycle arrest to cell apoptosis. These results provided novel insight into 2,6-DCBQ-induced cytotoxicity.
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Affiliation(s)
- Mingyue Dong
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, China
| | - Yan Ding
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, China
| | - Yingying Liu
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, China
| | - Zeqiong Xu
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, China
| | - Huachang Hong
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, China
| | - Hongjie Sun
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, China
| | - Xianfeng Huang
- National and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, China
| | - Xinwei Yu
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, China
| | - Qiang Chen
- Department of Environmental and Occupational Health, Jinhua Center for Disease Control and Prevention, Jinhua, People's Republic of China
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Li D, Cheng W, Ren J, Qin L, Zheng X, Wan T, Wang M. In vitro toxicity assessment of haloacetamides via a toxicogenomics assay. Environ Toxicol Pharmacol 2023; 97:104026. [PMID: 36455839 DOI: 10.1016/j.etap.2022.104026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
It is important to study the stress effects and mechanisms of haloacetamide (HAcAm) disinfection byproducts to reveal their health hazards. In this context, toxicological g was applied to evaluate the effects of four HAcAms, revealing the status of gene expression on Escherichia coli in different stress response types (oxidative, protein, membrane, general, DNA). This study revealed that the main toxic action modes of these HAcAms were general and membrane stresses by high-resolution, real-time gene expression profiling combined with clustering analysis. The results of time-gene evaluation showed that the presence of chloroacetamide (CAcAm) and bromoacetamide (BAcAm) generated more reactive oxygen species, thus activating oxidative stress. Trichloroacetamide (tCAcAm) induced altered expression of glutathione marker genes and membrane stress-related genes, and iodoacetamide (IAcAm) caused severe DNA damage by damaging DNA strands and individual nucleotides mainly through damage to nucleic acids and bases. Furthermore, quantitative structure-activity relationship (QSAR) modelling results indicated that the biological activities of HAcAms were related to their quantum chemical and topological properties.
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Affiliation(s)
- Dong Li
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China
| | - Wen Cheng
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.
| | - Jiehui Ren
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China
| | - Lu Qin
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China
| | - Xing Zheng
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China
| | - Tian Wan
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China
| | - Min Wang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China
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Wu W, Liu Y, Li C, Zhuo F, Xu Z, Hong H, Sun H, Huang X, Yu X. Oxidative Stress Responses and Gene Transcription of Mice under Chronic-Exposure to 2,6-Dichlorobenzoquinone. Int J Environ Res Public Health 2022; 19:13801. [PMID: 36360680 PMCID: PMC9656914 DOI: 10.3390/ijerph192113801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/11/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
2,6-Dichlorobenzoquinone (2,6-DCBQ), as an emerging disinfection by-production, was frequently detected and identified in the drinking water; however, limited information is available for the toxic effect of 2,6-DCBQ on mice. In the present study, adult mice were used to assess the impact of 2,6-DCBQ via measuring the responses of antioxidant enzymes (superoxide dismutase (SOD) and catalase (CAT)), the key genes (Heme oxygenase-1 (HO-1), NADPH quinone oxidoreductase 1 (NQO1) and glutamate-L-cysteine ligase catalytic subunit (GCLC)) in the Nrf2-keap1 pathway, and lipid peroxidation (malonaldehyde, MDA). Our results clearly indicated that 2,6-DCBQ decreased the activities of SOD and CAT, repressed the transcriptional levels of key genes in Nrf2-keap1 pathway, further caused oxidative damage on mice. These results provided evidence for assessing the threat of 2,6-DCBQ on human.
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Affiliation(s)
- Wenjing Wu
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Yingying Liu
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Chunze Li
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Fangyu Zhuo
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Zexiong Xu
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Huachang Hong
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Hongjie Sun
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China
| | - Xianfeng Huang
- National and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Xinwei Yu
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan 316021, China
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316021, China
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9
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Xu C, Yu S, Hu J, Effiong K, Ge Z, Tang T, Xiao X. Programmed cell death process in freshwater Microcystis aeruginosa and marine Phaeocystis globosa induced by a plant derived allelochemical. Sci Total Environ 2022; 838:156055. [PMID: 35598674 DOI: 10.1016/j.scitotenv.2022.156055] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/25/2022] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Harmful algal blooms (HAB) are a serious problem worldwide. Allelochemicals from natural plants were recently thought to be promising anti-algaecide in controlling harmful algae. However, the programmed cell death (PCD) process of algae under allelopathic pressure induced by 5,4'-dihydroxyflavone (5,4'-DHF) was poorly understood. In this study, two common and worldwide distributed microalgae, Microcystis aeruginosa and Phaeocystis globosa were selected as target algae, and the PCD processes induced by 5,4'-DHF were cross-compared between the two species. Both algae species were inhibited significantly by 5,4'-DHF with the relative sensitivity of 0.11. To uncover the PCD progress systematically, signals for PCD triggering, antioxidant enzyme activity, photosynthetic ability variation, caspase-like activities and typical indicators were investigated. In both species, typical indicators of PCD - phosphatidylserine externalization and chromatin condensation - were detected. The intracellular reactive oxygen species (ROS), nitric oxide (NO) and H2O2 were the potential signal molecules to stimulate PCD, and caspase-like activities were activated with an elevation of cytochrome c indicating the initiation of PCD in both species. However, P. globosa responded to 5,4'-DHF immediately after 3 h with the elevation of ROS and not in M. aeruginosa. Antioxidant enzyme activities of superoxide dismutase (SOD) and catalase (CAT) in M. aeruginosa and P. globosa also showed different patterns on day 3. Specifically, SOD activity in M. aeruginosa increased significantly while it decreased significantly in P. globosa, CAT activity in M. aeruginosa decreased significantly while it increased significantly in P. globosa (p < 0.05). Malondialdehyde (MDA) content in P. globosa increased significantly (p < 0.001) while it showed no variation in M. aeruginosa. Overall, this study is one of the earliest studies to explore the inhibition and action mechanism of plant derived flavonoids on harmful algae from the perspective of PCD, and provide new insights into the antialgal mechanism of allelochemicals.
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Affiliation(s)
- Caicai Xu
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Shumiao Yu
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Jing Hu
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Kokoette Effiong
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Zhiwei Ge
- Zhejiang University, Analysis Center of Agrobiology and Environmental Sciences, Hangzhou 310058, China
| | - Tao Tang
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China
| | - Xi Xiao
- Zhejiang University, Ocean College, 1 Zheda Road, Zhoushan, Zhejiang 316000, China; Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China.
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Yang H, Li X, Zheng X, Zhi H, Tang G, Ke Y, Liu B, Ma H. Comparing the toxicity of iodinated X-ray contrast media on eukaryote- and prokaryote-based quantified microarray assays. Ecotoxicol Environ Saf 2022; 240:113678. [PMID: 35653977 DOI: 10.1016/j.ecoenv.2022.113678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
This study compared the toxicity mechanisms of four X-ray-based iodinated contrast media (ICM) on Escherichia coli (E. coli) and yeast microarray assays, aiming to determine the diverse toxicity mechanisms among different exposed organisms and the relationship between toxicity and their physical and chemical characteristics. The conventional phenotypic endpoint cytotoxicity and the change in reactive oxygen species (ROS) level were employed in conjunction with toxicogenomics to quantify changes in the gene/protein biomarker level in the regulation of different damage/repair pathways. The results showed that molecular toxicity endpoints, named transcriptional effect level index (TELI) and protein effect level index (PELI) for E. coli and yeast, respectively, correlated well with the phenotypic endpoints. Temporal altered gene/protein expression profiles revealed dynamic and complex damage/toxic mechanisms. In particular, compared with E. coli cells, yeast cells exposed to ICM exhibited significantly higher stress intensity and diverse stress types, resulting in stress or damage to the organism. The toxic mechanisms of ICM are concentration/property-dependent and relevant to the cellular structure and defense systems in prokaryotes and eukaryotes. In particular, the toxicity of ionic ICM is higher than that of non-ionic ICM, and eukaryotes are more susceptible than prokaryotes to ICM exposure.
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Affiliation(s)
- Heyun Yang
- State Key Laboratory of Eco-hydraulics in North west Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Xiaoliang Li
- State Key Laboratory of Eco-hydraulics in North west Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Xing Zheng
- State Key Laboratory of Eco-hydraulics in North west Arid Region, Xi'an University of Technology, Xi'an 710048, China.
| | - Hegang Zhi
- College of Agricultural and Environmental Sciences, University of California, Davis 95616, United States
| | - Gang Tang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Yanchun Ke
- Aerospace Kaitian environmental technology co. ltd., Changsha 410100, China
| | - Bao Liu
- State Key Laboratory of Eco-hydraulics in North west Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Hao Ma
- State Key Laboratory of Eco-hydraulics in North west Arid Region, Xi'an University of Technology, Xi'an 710048, China
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11
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Kajjumba GW, Bokota RE, Attene-Ramos M, Marti EJ. Evaluation of disinfection byproducts for their ability to affect mitochondrial function. J Environ Sci (China) 2022; 117:295-304. [PMID: 35725082 DOI: 10.1016/j.jes.2022.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
In the race to deliver clean water to communities through potable water reuse, disinfection and water quality assessment are and will continue to be fundamental factors. There are over 700 disinfection byproducts (DBPs) in water; evaluating each compound is practically impossible and very time consuming. A bioanalytical approach could be an answer to this challenge. In this work, the response of four major classes of DBPs toward mitochondrial membrane potential (ΔΨm) and cytoplasmic adenosine triphosphate (C-ATP) was investigated with human carcinoma (HepG2) cells. Within 90 min of cell exposure, only the haloacetic acid (HAA) mixture caused a cytotoxic response as measured by C-ATP. All four groups (haloacetonitriles (HANs), trihalomethanes (THMs), nitrosamines (NOAs), and HAAs) responded well to ΔΨm, R2 > 0.70. Based on the half-maximum concentration that evoked a 50% response in ΔΨm, the response gradient was HANs >> HAAs ∼ THM > NOAs. The inhibition of the ΔΨm by HANs is driven by dibromoacetonitrile (DBAN), while dichloroacetonitrile (DCAN) did not cause a significant change in the ΔΨm at less than 2000 µM. A mixture of HANs exhibited an antagonistic behavior on the ΔΨm compared to individual compounds. If water samples are concentrated to increase HAN concentrations, especially DBAN, then ΔΨm could be used as a biomonitoring tool for DBP toxicity.
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Affiliation(s)
| | - Rachael E Bokota
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington DC, USA
| | - Matias Attene-Ramos
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington DC, USA
| | - Erica J Marti
- Department of Civil and Environmental Engineering, University of Nevada, Las Vegas, NV, USA.
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12
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Sha Y, Wu H, Guo Y, Liu X, Mo Y, Yang Q, Wei S, Long K, Lu D, Xia Y, Zheng W, Su Z, Wei X. Effects of iodoacetic acid drinking water disinfection byproduct on the gut microbiota and its metabolism in rats. J Environ Sci (China) 2022; 117:91-104. [PMID: 35725093 DOI: 10.1016/j.jes.2022.02.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/12/2022] [Accepted: 02/20/2022] [Indexed: 06/15/2023]
Abstract
Iodoacetic acid (IAA) is an unregulated disinfection byproduct in drinking water and has been shown to exert cytotoxicity, genotoxicity, tumorigenicity, and reproductive and developmental toxicity. However, the effects of IAA on gut microbiota and its metabolism are still unknown, especially the association between gut microbiota and the metabolism and toxicity of IAA. In this study, female and male Sprague-Dawley rats were exposed to IAA at 0 and 16 mg/kg bw/day daily for 8 weeks by oral gavage. Results of 16S rRNA gene sequencing showed that IAA could alter the diversity, relative abundance and function of gut microbiota in female and male rats. IAA also increased the abundance of genes related to steroid hormone biosynthesis in the gut microbiota of male rats. Moreover, metabolomics profiling revealed that IAA could significantly disturb 6 and 13 metabolites in the feces of female and male rats, respectively. In female rats, the level of androstanediol increased in the IAA treatment group. These results were consistent with our previous findings, where IAA was identified as an androgen disruptor. Additionally, the perturbed gut microbiota and altered metabolites were correlated with each other. The results of this study indicated that IAA could disturb gut microbiota and its metabolism. These changes in gut microbiota and its metabolism were associated with the reproductive and developmental toxicity of IAA.
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Affiliation(s)
- Yujie Sha
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Huan Wu
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Yue Guo
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation, Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Xi Liu
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation, Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Yan Mo
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Qiyuan Yang
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Shumao Wei
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Kunling Long
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Du Lu
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Ying Xia
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Weiwei Zheng
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Zhiheng Su
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation, Pharmaceutical College, Guangxi Medical University, Nanning 530021, China.
| | - Xiao Wei
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China; Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, School of Public Health, Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning 530021, China.
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13
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Cheng CS, Gu QH, Zhang JK, Tao JH, Zhao TR, Cao JX, Cheng GG, Lai GF, Liu YP. Phenolic Constituents, Antioxidant and Cytoprotective Activities, Enzyme Inhibition Abilities of Five Fractions from Vaccinium dunalianum Wight. Molecules 2022; 27:molecules27113432. [PMID: 35684371 PMCID: PMC9181978 DOI: 10.3390/molecules27113432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022]
Abstract
The bud of Vaccinium dunalianum Wight has been traditionally consumed as health herbal tea by “Yi” people in Yunnan Province, China, which was locally named “Que Zui tea”. This paper studied the chemical constituents of five fractions from Vaccinium dunalianum, and their enzyme inhibitory effects of α-glucosidase and pancreatic lipase, antioxidant activity, and cytoprotective effects on H2O2-induced oxidative damage in HepG2 cells. The methanol extract of V. dunalianum was successively partitioned with petroleum ether (PF), chloroform (CF), ethyl acetate (EF), n-butanol (BF), and aqueous (WF) to obtain five fractions. The chemical profiling of the five fractions was analyzed by ultra-high-performance liquid chromatography coupled with a tandem mass spectrometry (UHPLC-MS/MS), and 18 compounds were tentatively identified. Compared to PF, CF, BF and WF, the EF revealed the highest total phenols (TPC) and total flavonoids (TFC), and displayed the strongest enzyme inhibition ability (α-glucosidase and pancreatic lipase) and antioxidant capacity (DPPH, ABTS and FRAP). Furthermore, these five fractions, especially EF, could effectively inhibit reactive oxygen species (ROS) production and cell apoptosis on H2O2-induced oxidative damage protection in HepG2 cells. This inhibitory effect might be caused by the up-regulation of intracellular antioxidant enzyme activity (CAT, SOD, and GSH). The flavonoids and phenolic acids of V. dunalianum might be the bioactive substances responsible for enzyme inhibitory, antioxidant, and cytoprotective activities.
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Affiliation(s)
- Chang-Shu Cheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Qing-Hui Gu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Jin-Ke Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Jun-Hong Tao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Tian-Rui Zhao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Jian-Xin Cao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Gui-Guang Cheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
| | - Guo-Fang Lai
- Yunnan Institute for Food and Drug Control, Kunming 650106, China
- Correspondence: (G.-F.L.); (Y.-P.L.)
| | - Ya-Ping Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (C.-S.C.); (Q.-H.G.); (J.-K.Z.); (J.-H.T.); (T.-R.Z.); (J.-X.C.); (G.-G.C.)
- Correspondence: (G.-F.L.); (Y.-P.L.)
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14
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Liang Y, Wu B, Zhang Y, Liu H. Oxidative stress and EROD activity in Caco-2 cells upon exposure to chlorinated hydrophobic organic compounds from drinking water reservoirs. Sci Total Environ 2022; 804:150015. [PMID: 34509843 DOI: 10.1016/j.scitotenv.2021.150015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/19/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Our previous studies showed hydrophobic organic compounds (HOCs) in the sediments of drinking water reservoirs caused DNA damage in human cells (Caco-2) after chlorination. However, the main mechanisms remained unclear. This study compared oxidative damage and EROD activity in Caco-2 cells upon exposure to chlorinated HOCs, and the role of antioxidants (catalase, vitamin C and epigallocatechin gallate (EGCG)) in reducing the toxicities was examined. The result showed that chlorinated HOCs induced a 4-fold increase in production of reactive oxygen species (ROS) compared with HOCs. Antioxidants supplement significantly reduced ROS yields and DNA peroxidation. HOCs with relatively higher TEQbio were greatly reduced (about 98%) after chlorination, indicating dioxin-like toxicity is not the main factor inducing oxidative damage by chlorinated HOCs. Yet, ROS and the associated oxidative damage seem to be more responsible for causing DNA damage in the cells. Antioxidants including catalase, Vitamin C and EGCG showed protective effect against chlorination.
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Affiliation(s)
- Yan Liang
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Binbin Wu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Centre for Cardiovascular Genomics and Medicine, The Chinese University of Hong Kong (CUHK), HKSAR, China
| | - Yanling Zhang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Hailong Liu
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
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15
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Gao SH, Zhao TR, Liu YP, Wang YF, Cheng GG, Cao JX. Phenolic constituents, antioxidant activity and neuroprotective effects of ethanol extracts of fruits, leaves and flower buds from Vaccinium dunalianum Wight. Food Chem 2021; 374:131752. [PMID: 34896954 DOI: 10.1016/j.foodchem.2021.131752] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/17/2021] [Accepted: 11/29/2021] [Indexed: 12/18/2022]
Abstract
Vaccinium dunalianum Wight is an important healthy tea resource in China with health benefits. The chemical compositions and the possible bioactive substances in its fruits, leaves and flower buds extracts (FE, LE and FBE) were identified and characterized by UHPLC-HRMS/MS. Consequently, FE, LE and FBE were rich in phenolic and flavonoid compounds. Among them, 21 compounds were identified, and the main components were chlorogenic acid, quinic acid and 6'-O-caffeoylarbutin. Furthermore, their neuroprotection and mechanism on H2O2-induced neurotoxicity in PC12 cells were investigated. All the different concentrations of FE, LE and FBE were apparently inhibited the H2O2-induced ROS generation and apoptosis on PC12 cells. FBE showed stronger neuroprotective activity against H2O2-induced PC12 cell damage than those of FE and LE. The mechanism of neuroprotective effect might be related to the upregulation of endogenous antioxidant enzymes expressions and activation of the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Shun-Hua Gao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, People's Republic of China
| | - Tian-Rui Zhao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, People's Republic of China
| | - Ya-Ping Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, People's Republic of China
| | - Yi-Fen Wang
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650000, People's Republic of China
| | - Gui-Guang Cheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, People's Republic of China.
| | - Jian-Xin Cao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, People's Republic of China.
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16
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Yao Y, Xiong W, Chen L, Ju X, Wang L. Synergistic growth-inhibition effect of quercetin and N-Acetyl-L-cysteine against HepG2 cells relying on the improvement of quercetin stability. Food Chem 2021; 374:131729. [PMID: 34906805 DOI: 10.1016/j.foodchem.2021.131729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/11/2021] [Accepted: 11/27/2021] [Indexed: 11/29/2022]
Abstract
In this study, N-Acetyl-l-cysteine (NAC) as a widely-used antioxidant was first applied to improve the stability of Que in medium. The stability of Que in medium was analyzed, and the growth-inhibition effect of Que and NAC against HepG2 cells was estimated. The results showed NAC could significantly improve the stability of Que in medium (more than 80%), while Que alone in medium was totally degraded within 4 h. Besides, it was found that Que together with NAC could significantly enhance the growth-inhibition effect against HepG2 cells compared with Que alone, with the IC50 value of 40 μM and 200 μM for Que together with NAC and Que alone. Moreover, NAC could inhibit the depletion of GSH induced by Que. The synergistic growth-inhibition effect of Que and NAC against HepG2 cells was attributed to NAC improving Que stability in medium accompanied by NAC inhibiting the depletion of GSH induced by Que. The results showed that NAC could improve the stability of Que and reduce the degradation rate of Que in culture medium. This study can provide a reference for the further study of the mechanism of NAC enhancing the stability of quercetin and the development of broad-spectrum stabilizers.
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Affiliation(s)
- Yijun Yao
- College of Food Science and Engineering Collaborative Innovation Center for Modern Grain Circulation and Safety Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, 210023 Nanjing, People's Republic of China
| | - Wenfei Xiong
- College of Food Science and Engineering Collaborative Innovation Center for Modern Grain Circulation and Safety Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, 210023 Nanjing, People's Republic of China
| | - Lin Chen
- College of Food Science and Engineering Collaborative Innovation Center for Modern Grain Circulation and Safety Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, 210023 Nanjing, People's Republic of China
| | - Xingrong Ju
- College of Food Science and Engineering Collaborative Innovation Center for Modern Grain Circulation and Safety Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, 210023 Nanjing, People's Republic of China
| | - Lifeng Wang
- College of Food Science and Engineering Collaborative Innovation Center for Modern Grain Circulation and Safety Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, 210023 Nanjing, People's Republic of China.
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17
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Zhang F, Liu Q, Ganesan K, Kewu Z, Shen J, Gang F, Luo X, Chen J. The Antitriple Negative Breast cancer Efficacy of Spatholobus suberectus Dunn on ROS-Induced Noncanonical Inflammasome Pyroptotic Pathway. Oxid Med Cell Longev 2021; 2021:5187569. [PMID: 34659633 DOI: 10.1155/2021/5187569] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 12/24/2022]
Abstract
Breast cancer (BCa) is the leading cause of women's death worldwide; among them, triple-negative breast cancer (TNBC) is one of the most troublesome subtypes with easy recurrence and great aggressive properties. Spatholobus suberectus Dunn has been used in the clinic of Chinese society for hundreds of years. Shreds of evidence showed that Spatholobus suberectus Dunn has a favorable outcome in the management of cancer. However, the anti-TNBC efficacy of Spatholobus suberectus Dunn percolation extract (SSP) and its underlying mechanisms have not been fully elucidated. Hence, the present study is aimed at evaluating the anti-TNBC potential of SSP both in vitro and in vivo, through the cell viability, morphological analysis of MDA-MB-231, LDH release assay, ROS assay, and the tests of GSH aborted pyroptotic noninflammasome signaling pathway. Survival analysis using the KM Plotter and TNM plot database exhibited the inhibition of transcription levels of caspase-4 and 9 related to low relapse-free survival in patients with BCa. Based on the findings, SSP possesses anti-TNBC efficacy that relies on ROS-induced noncanonical inflammasome pyroptosis in cancer cells. In this study, our preclinical evidence is complementary to the preceding clinic of Chinese society; studies on the active principles of SPP remain underway in our laboratory.
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Thakur M, Rachamalla M, Niyogi S, Datusalia AK, Flora SJS. Molecular Mechanism of Arsenic-Induced Neurotoxicity including Neuronal Dysfunctions. Int J Mol Sci 2021; 22:ijms221810077. [PMID: 34576240 PMCID: PMC8471829 DOI: 10.3390/ijms221810077] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/19/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022] Open
Abstract
Arsenic is a key environmental toxicant having significant impacts on human health. Millions of people in developing countries such as Bangladesh, Mexico, Taiwan, and India are affected by arsenic contamination through groundwater. Environmental contamination of arsenic leads to leads to various types of cancers, coronary and neurological ailments in human. There are several sources of arsenic exposure such as drinking water, diet, wood preservatives, smoking, air and cosmetics, while, drinking water is the most explored route. Inorganic arsenic exhibits higher levels of toxicity compared its organic forms. Exposure to inorganic arsenic is known to cause major neurological effects such as cytotoxicity, chromosomal aberration, damage to cellular DNA and genotoxicity. On the other hand, long-term exposure to arsenic may cause neurobehavioral effects in the juvenile stage, which may have detrimental effects in the later stages of life. Thus, it is important to understand the toxicology and underlying molecular mechanism of arsenic which will help to mitigate its detrimental effects. The present review focuses on the epidemiology, and the toxic mechanisms responsible for arsenic induced neurobehavioral diseases, including strategies for its management from water, community and household premises. The review also provides a critical analysis of epigenetic and transgenerational modifications, mitochondrial oxidative stress, molecular mechanisms of arsenic-induced oxidative stress, and neuronal dysfunction.
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Affiliation(s)
- Manisha Thakur
- Department of Pharmacology and Toxicology, Transit Campus, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow 226002, India; (M.T.); (A.K.D.)
| | - Mahesh Rachamalla
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada; (M.R.); (S.N.)
| | - Som Niyogi
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada; (M.R.); (S.N.)
- Toxicology Centre, Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
| | - Ashok Kumar Datusalia
- Department of Pharmacology and Toxicology, Transit Campus, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow 226002, India; (M.T.); (A.K.D.)
| | - Swaran Jeet Singh Flora
- Department of Pharmacology and Toxicology, Transit Campus, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow 226002, India; (M.T.); (A.K.D.)
- Correspondence:
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19
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Shan X, Liu L, Li G, Xu K, Liu B, Jiang W. PM 2.5 and the typical components cause organelle damage, apoptosis and necrosis: Role of reactive oxygen species. Sci Total Environ 2021; 782:146785. [PMID: 33838376 DOI: 10.1016/j.scitotenv.2021.146785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
In this research, the organelle damage, apoptosis and necrosis induced by PM2.5, BC and Kaolin were studied using human bronchial epithelial (16HBE) cells. PM2.5, BC and Kaolin all induce cell death, LDH release and excess intracellular ROS generation. For the organelle injuries, Kaolin and high-dose PM2.5 (240 μg/mL) cause lysosomal acidification, but BC causes lysosomal alkalization (lysosomal membrane permeabilization, LMP). BC and Kaolin cause the loss of mitochondrial membrane potential (MMP), while PM2.5 does not. For the cell death mode, PM2.5 causes both apoptosis and necrosis. However only necrosis has been detected in the BC and Kaolin treated groups, indicating the more severe cellular insult. Excess ROS generation is involved in the organelle damage and cell death. ROS contributes to the BC-induced LMP and necrosis, but does not significantly affect the Kaolin-induced MMP loss and necrosis. Therefore, the BC component in PM2.5 may cause cytotoxicity via ROS-dependent pathways, the Kaolin component may damage cells via ROS-independent mechanisms such as strong interaction. The PM2.5-induced apoptosis and necrosis can be partially mitigated after the removal of ROS, indicating the existence of both the ROS-dependent and ROS-independent mechanisms due to the complicated PM2.5 components. BC represents the anthropogenic source component in PM2.5, while Kaolin represents the natural source component. Our results provide knowledge on the toxic mechanisms of typical PM2.5 components at the cellular and subcellular levels.
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Affiliation(s)
- Xifeng Shan
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Ling Liu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Gang Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Kexin Xu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Bingyan Liu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Wei Jiang
- Environment Research Institute, Shandong University, Qingdao 266237, China.
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Gonsioroski A, Meling DD, Gao L, Plewa MJ, Flaws JA. Iodoacetic acid affects Estrous Cyclicity, ovarian gene expression, and hormone levels in mice. Biol Reprod 2021; 105:1030-1042. [PMID: 34086879 DOI: 10.1093/biolre/ioab108] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/13/2021] [Accepted: 05/27/2021] [Indexed: 12/20/2022] Open
Abstract
Iodoacetic acid (IAA) is a water disinfection byproduct that is an ovarian toxicant in vitro. However, information on the effects of IAA on ovarian function in vivo was limited. Thus, we determined whether IAA exposure affects estrous cyclicity, steroidogenesis, and ovarian gene expression in mice. Adult CD-1 mice were dosed with water or IAA (0.5-500 mg/L) in the drinking water for 35-40 days during which estrous cyclicity was monitored for 14 days. Ovaries were analyzed for expression of apoptotic factors, cell cycle regulators, steroidogenic factors, estrogen receptors, oxidative stress markers, and a proliferation marker. Sera were collected to measure pregnenolone, androstenedione, testosterone, estradiol, inhibin B, and follicle-stimulating hormone (FSH) levels. IAA exposure decreased the time that the mice spent in proestrus compared to control. IAA exposure decreased expression of the pro-apoptotic factor Bok, the cell cycle regulator Ccnd2, and borderline decreased expression of the anti-apoptotic factor Bcl2l10, the pro-apoptotic factor Aimf1, and the steroidogenic factor Cyp19a1 compared to control. IAA exposure increased expression of the pro-apoptotic factors Bax and Aimf1, the anti-apoptotic factor Bcl2l10, the cell cycle regulators Ccna2, Ccnb1, Ccne1, and Cdk4, and estrogen receptor Esr1 compared to control. IAA exposure decreased expression of Cat and Sod1, and increased expression of Cat, Gpx, and Nrf2. IAA exposure did not affect expression of Star, Cyp11a1, Cyp17a1, Hsd17b1, Hsd3b1, Esr2 or Ki67 compared to control. IAA exposure decreased estradiol levels, but did not alter other hormone levels compared to control. In conclusion, IAA exposure alters estrous cyclicity, ovarian gene expression, and estradiol levels in mice.
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Affiliation(s)
| | - Daryl D Meling
- Department of Comparative Biosciences, University of Illinois, Urbana, IL, USA
| | - Liying Gao
- Department of Comparative Biosciences, University of Illinois, Urbana, IL, USA
| | - Michael J Plewa
- Department of Crop Sciences and the Safe Global Water Institute, University of Illinois, Urbana, IL, USA
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois, Urbana, IL, USA
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21
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Krátký M, Konečná K, Brablíková M, Janoušek J, Pflégr V, Maixnerová J, Trejtnar F, Vinšová J. Iodinated 1,2-diacylhydrazines, benzohydrazide-hydrazones and their analogues as dual antimicrobial and cytotoxic agents. Bioorg Med Chem 2021; 41:116209. [PMID: 34015704 DOI: 10.1016/j.bmc.2021.116209] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 10/21/2022]
Abstract
Hydrazide-hydrazones have been described as a scaffold with antimicrobial and cytotoxic activities as well as iodinated compounds. A resistance rate of bacterial and fungal pathogens has increased considerably. That is why we synthesized and screened twenty-two iodinated hydrazide-hydrazones 1 and 2, ten 1,2-diacylhydrazines 3 and their three reduced analogues 4 for their antibacterial, antifungal, and cytotoxic properties. Hydrazide-hydrazones were prepared by condensation of 4-substituted benzohydrazides with 2-/4-hydroxy-3,5-diiodobenzaldehydes, diacylhydrazines from identical benzohydrazides and 3,5-diiodosalicylic acid via its chloride. These compounds were investigated in vitro against eight bacterial and eight fungal strains. The derivatives were found potent antibacterial agents against Gram-positive cocci including methicillin-resistant Staphylococcus aureus with the lowest values of minimum inhibitory concentrations (MIC) of 7.81 µM. Four compounds inhibited also human pathogenic fungi (MIC of ≥1.95 µM). The derivatives had different degrees of cytotoxicity for HepG2 and HK-2 cell lines (IC50 values from 11.72 and 26.80 µM, respectively). Importantly, normal human cells exhibited lower sensitivity. The apoptotic effect was also investigated. In general, the presence of 3,5-diiodosalicylidene scaffold (compounds 1) is translated into enhanced both antimicrobial and cytotoxic properties whereas its 4-hydroxy isomers 2 share a low biological activity. N'-Benzoyl-2-hydroxy-3,5-diiodobenzohydrazides 3 have a non-homogeneous activity profile. Focusing on 4-substituted benzohydrazide part, the presence of an electron-withdrawing group (F, Cl, CF3, NO2) was found to be beneficial.
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Affiliation(s)
- Martin Krátký
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Klára Konečná
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Michaela Brablíková
- Unipetrol Centre of Research and Education, 436 70 Litvínov-Záluží 1, Czech Republic
| | - Jiří Janoušek
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Václav Pflégr
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jana Maixnerová
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - František Trejtnar
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jarmila Vinšová
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
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22
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Huang W, Yin H, Yu Y, Lu G, Dang Z, Chen Z. Co-metabolic degradation of tetrabromobisphenol A by Pseudomonas aeruginosa and its auto-poisoning effect caused during degradation process. Ecotoxicol Environ Saf 2020; 202:110919. [PMID: 32800254 DOI: 10.1016/j.ecoenv.2020.110919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
In this study, Pseudomonas aeruginosa was applied to degrade tetrabromobisphenol A (TBBPA) with glucose as a co-metabolic substrate. Influencing factors of co-metabolic degradation such as pH, TBBPA and glucose concentration were examined and the degradation efficiency under optimal condition reached about 50% on the 7th day. The study also proved that the extracellular action, rather than intracellular one, played a leading role in TBBPA degradation. Five metabolites including debromination and beta-scission products were identified in this study. The extracellular active substance pyocyanin was considered as the origin of H2O2 and OH·. The variation of concentrations of H2O2 and OH· shared the same trend, they increased in the early days and then declined gradually. On the 1st day, the OD600 of P.aeruginosa in the co-metabolic group was 6.0 times higher than the initial value while total organic carbon (TOC) decreased about 78%, which might lead to the occurrence of pyocyanin auto-poisoning. Flow cytometry was applied to detect the cellular state of P.aeruginosa during degradation. The increasing intracellular ROS showed that cells were suffering from oxidative stress and the change of membrane potential revealed that cellular dysfunction had occurred since the 1st day. This research indicated that the toxic effect on P.aeruginosa was probably not directly correlated with TBBPA, but was caused by pyocyanin auto-poisoning.
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Affiliation(s)
- Wantang Huang
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Hua Yin
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China.
| | - Yuanyuan Yu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Guining Lu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Zhi Dang
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Zhanghong Chen
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
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23
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Sun HJ, Zhao WJ, Teng XQ, Shu SP, Li SW, Hong HC, Guan DX. Antioxidant responses and pathological changes in the gill of zebrafish (Danio rerio) after chronic exposure to arsenite at its reference dose. Ecotoxicol Environ Saf 2020; 200:110743. [PMID: 32464441 DOI: 10.1016/j.ecoenv.2020.110743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/23/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Gill, as the organ of fish to contact most directly with xenobiotics, suffered more threat. To evaluate the impact of arsenite (AsIII) on the gill of fish, we measured the antioxidative responses (superoxide dismutase (SOD) and catalase (CAT) activities) and oxidative damage (malondialdehyde (MDA) content), histological changes and mRNA transcriptional responses of zebrafish gill, after exposure to AsIII (0, 10, 50, 100, and 150 μg L-1) solutions for 28 days. We found that AsIII increased the activities of CAT by 46%-87%, decreased the activities of SOD and the contents of MDA by 19% and 21%-32%. Furthermore, CuZnSOD and MnSOD mRNA transcription levels were also inhibited, decreasing by 62%-82% and 70%-77%. Besides, ≥ 100 μg L-1 AsIII also caused histological changes (a loss of mucus and desquamation in the surface of the epithelial cells) on zebrafish gill. These results showed that low concentrations of AsIII influenced biochemical and physiological performances of fish gill, which probably aggravates the toxic effect of AsIII on fish.
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Affiliation(s)
- Hong-Jie Sun
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, PR China
| | - Wen-Jun Zhao
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, PR China
| | - Xiao-Qiang Teng
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, PR China
| | - Shui-Ping Shu
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, PR China
| | - Shi-Wei Li
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong, 250022, PR China
| | - Hua-Chang Hong
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, PR China.
| | - Dong-Xing Guan
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, PR China.
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Guo P, Chen S, Li D, Zhang J, Luo J, Zhang A, Yu D, Bloom MS, Chen L, Chen W. SFPQ is involved in regulating arsenic-induced oxidative stress by interacting with the miRNA-induced silencing complexes. Environ Pollut 2020; 261:114160. [PMID: 32066060 DOI: 10.1016/j.envpol.2020.114160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/06/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
Arsenic exposure contributed to the development of human diseases. Arsenic exerted multiple organ toxicities mainly by triggering oxidative stress. However, the signaling pathway underlying oxidative stress is unclear. We previously found that the expression of SFPQ, a splicing factor, was positively associated with urinary arsenic concentration in an arsenic-exposed population, suggesting an oxidative stress regulatory role for SFPQ. To test this hypothesis, we established cell models of oxidative stress in human hepatocyte cells (L02) treated with NaAsO2. Reactive oxygen species (ROS) synthesis displayed a time- and dose-dependent increase with NaAsO2 treatment. SFPQ suppression resulted in a 36%-53% decrease in ROS generation, leading to enhanced cellular damage determined by 8-OHdG, comet tail moment, and micronucleus analysis. Particularly, SFPQ deficiency attenuated expression of the oxidase genes DUOX1, DUOX2, NCF2, and NOX2. A fluorescent-based RNA electrophoretic mobility shift assay (FREMSA) and dual-luciferase reporter system revealed that miR-92b-5p targeted DUOX2 mRNA degradation. An RNA immunoprecipitation assay showed an interaction between SFPQ and miR-92b-5p of the miRNA-induced silencing complex (miRISC). Notably, NaAsO2 treatment diminished the interaction between SFPQ and miR92b-5p, accompanied by decreased binding between miR-92b-5p and 3'-UTR of DUOX2. However, SFPQ deficiency suppressed the dissociation of miR-92b-5p from 3'-UTR of DUOX2, indicating that miR-92b-5p regulated the SFPQ-dependent DUOX2 expression. Taken together, we reveal that SFPQ responds to arsenic-induced oxidative stress by interacting with the miRISC. These findings offer new insight into the potential role of SFPQ in regulating cellular stress response.
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Affiliation(s)
- Ping Guo
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shen Chen
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Daochuan Li
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Jinmiao Zhang
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Jiao Luo
- School of Public Health, Qingdao University, Qingdao 266071, China
| | - Aihua Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China
| | - Dianke Yu
- School of Public Health, Qingdao University, Qingdao 266071, China
| | - Michael S Bloom
- Departments of Environmental Health Sciences & Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Liping Chen
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Wen Chen
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
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25
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Fang P, Liang J, Jiang X, Fang X, Wu M, Wei X, Yang W, Hou W, Zhang Q. Quercetin Attenuates d-GaLN-Induced L02 Cell Damage by Suppressing Oxidative Stress and Mitochondrial Apoptosis via Inhibition of HMGB1. Front Pharmacol 2020; 11:608. [PMID: 32431618 PMCID: PMC7214928 DOI: 10.3389/fphar.2020.00608] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/17/2020] [Indexed: 01/18/2023] Open
Abstract
High mobility group box-1 (HMGB1) plays an important role in various liver injuries. In the case of acute liver injury, it leads to aseptic inflammation and other reactions, and also regulates specific cell death responses in chronic liver injury. HMGB1 has been demonstrated to be a good therapeutic target for treating liver failure. Quercetin (Que), as an antioxidant, is a potential phytochemical with hepatocyte protection and is also considered to be an inhibitor of HMGB1. However, the mechanism of its hepatoprotective effects remains to be characterized. The present study explored whether the hepatoprotective effect of Que antagonizes HMGB1, and subsequent molecular signaling events. Our results indicated that Que protects L02 cells from d-galactosamine (d-GaLN)-induced cellular damage by reducing intracellular reactive oxygen species (ROS) production and apoptotic responses in the mitochondrial pathway. Immunofluorescence and Western blot assays showed that HMGB1 was involved in d-GaLN-induced L02 cell damage. Further research showed that after transfection with HMGB1 short hairpin RNA (shRNA), cell viability was improved, and intracellular ROS production and apoptosis were suppressed. When co-treated with Que, the expression of HMGB1 was decreased significantly, the expression of proteins in the corresponding signal pathway were further reduced, and the production of ROS and apoptosis were further suppressed. Molecular docking also indicated the binding of Que and HMGB1. Taken together, these results indicate that Que significantly improves d-GaLN-induced cellular damage by inhibiting oxidative stress and mitochondrial apoptosis via inhibiting HMGB1.
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Affiliation(s)
- Peng Fang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiajun Liang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xuejiao Jiang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xian Fang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Mengli Wu
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xiaoyi Wei
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Wenlong Yang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Weixin Hou
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Qiuyun Zhang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
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26
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Wu B, Hong H, Xia Z, Liu H, Chen X, Chen J, Yan B, Liang Y. Transcriptome analyses unravel CYP1A1 and CYP1B1 as novel biomarkers for disinfection by-products (DBPs) derived from chlorinated algal organic matter. J Hazard Mater 2020; 387:121685. [PMID: 31776088 DOI: 10.1016/j.jhazmat.2019.121685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/11/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
Disinfection by-products (DBPs) are generated during chlorination of drinking water. Previous studies demonstrate that DBPs are cytotoxic, genotoxic and associated with an increased risk of human cancer. However, the molecular basis of DBPs-induced toxic effects remains unclear. Here, we chlorinated samples of algal-derived organic matter (AOM) and sediment organic matter (SOM) from a local drinking water reservoir. Chemical properties, toxicities and transcriptomic profiles of human Caco-2 cell exposed to AOM and SOM were compared before and after chlorination. We analyzed chlorination-caused distinct gene expression patterns between AOM and SOM, and identified a set of 22 differentially expressed genes under chlorination of AOM that are different from chlorinated SOM. Consequent network analysis indicates that differential CYP1A1, CYP1B1, ID1 and ID2 are common targets of the upstream regulators predicted in the AOM group, but not the SOM group. Through experimental validation and data integration from previous reports related to DBPs or environmental stressors, we found that CYP1A1 and CYP1B1 are specifically up-regulated after chlorinating AOM. Our study demonstrates that the two CYP1 genes likely act as novel biomarkers of AOM derived DBPs, and this would be helpful for testing drinking water DBPs toxicity and further monitoring drinking water safety.
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Affiliation(s)
- Binbin Wu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huachang Hong
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, 321004, China
| | - Zhengyuan Xia
- Department of Anesthesiology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hailong Liu
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Xi Chen
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Junhui Chen
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Bin Yan
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, 518036, China; School of Biomedical Sciences & Department of Computer Science, The University of Hong Kong, Hong Kong, China..
| | - Yan Liang
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China; College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, 321004, China.
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Fan Z, Wang Y, Yang M, Cao J, Khan A, Cheng G. UHPLC-ESI-HRMS/MS analysis on phenolic compositions of different E Se tea extracts and their antioxidant and cytoprotective activities. Food Chem 2020; 318:126512. [PMID: 32135418 DOI: 10.1016/j.foodchem.2020.126512] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 12/22/2022]
Abstract
E Se tea, prepared from the leaves of Malus toringoides (Rehd.) Hughes, is a traditional beverage, but there is little known about its chemical substances. This paper is aimed to investigate the chemical composition, antioxidant, and cytoprotective activities of the extract and fractions from E Se tea. Sixteen compounds were characterized by UHPLC-ESI-HRMS/MS. Phloridzin was the main compound, especially in ethyl acetate fraction (EAF). Moreover, EAF had the highest total phenolic and flavonoid contents with 197.54 ± 7.52 mg gallic acid equivalents/g extract and 85.94 ± 5.39 mg rutin equivalents/g extract, respectively, and exhibited the strongest antioxidant capacity (DPPH: IC50 = 54.91 ± 3.38 μg/mL; ABTS: IC50 = 98.08 ± 6.92 μg/mL). Different fractions of E Se tea, especially EAF, significantly inhibited intracellular ROS generation, reduced cell apoptosis, and decreased oxidative stress damage in H2O2-induced HepG-2 cells. Therefore, the obtained results highlight that E Se tea is a promising source for functional beverage or nutritional foods.
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Affiliation(s)
- Zhifeng Fan
- The Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, People's Republic of China
| | - Yudan Wang
- Engineering Research Center of Biopolymer Functional Materials of Yunnan, Yunnan Minzu University, Kunming 650500, People's Republic of China
| | - Meilian Yang
- The Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, People's Republic of China
| | - Jianxin Cao
- The Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, People's Republic of China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Guiguang Cheng
- The Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, People's Republic of China.
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28
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Ding X, Zhu J, Zhang J, Dong T, Xia Y, Jiao J, Wang X, Zhou W. Developmental toxicity of disinfection by-product monohaloacetamides in embryo-larval stage of zebrafish. Ecotoxicol Environ Saf 2020; 189:110037. [PMID: 31812018 DOI: 10.1016/j.ecoenv.2019.110037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 11/23/2019] [Accepted: 11/29/2019] [Indexed: 05/04/2023]
Abstract
As an emerging class of nitrogenous disinfection by-products (N-DBPs), haloacetamides (HAcAms) have been widely detected in drinking water. Limited toxicity studies have shown an inconsistent toxicity of monoHAcAms, including CAcAm, BAcAm and IAcAm. In this study, the developmental toxicity of monoHAcAms was evaluated in embryo-larval stage of zebrafish. Embryos were exposed to one concentration of 2.50, 5.00, 10.0, 20.0, 40.0 and 80.0 mg/L monoHAcAms from 4 h post-fertilization (hpf) to 120 hpf. Multiple endpoints, including hatching rate, morphological abnormalities, mortality as well as locomotor behavior were assessed at specified stages (24, 48, 72, 96 and 120 hpf). Results showed that 80 mg/L CAcAm and 40 mg/L BAcAm significantly decreased the hatching rate, IAcAm decreased the hatching rate and delayed the hatching process in a concentration-dependent manner with an EC50 of 16.37 mg/L at 72 hpf. The frequency and severity order of morphological abnormalities increased with the raised exposure concentrations and prolonged exposure time, and the corresponding EC50 at 96 hpf were 21.10, 9.77 and 16.60 mg/L for CAcAm, BAcAm and IAcAm, respectively. MonoHAcAms exposure resulted in a time- and dose-dependent response in mortality and the calculated LC50 at 72 hpf were 38.44, 17.74 and 28.82 mg/L for CAcAm, BAcAm and IAcAm, respectively. Based on EC50 for morphological abnormalities and LC50, a toxicity rank order of BAcAm > IAcAm > CAcAm was observed. Different degrees of hyperactivity and hypoactivity were observed from locomotor behavior analysis in larvae from ≤10.0 mg/L monoHAcAms exposure groups. The light-dark periodic change was disappeared in larvae of 10.0 mg/L BAcAm exposure group. In summary, our study showed that monoHAcAms were developmentally toxic to zebrafish even at very low concentrations and BAcAm exerted higher toxicity than IAcAm and CAcAm. These results will further our understanding of the toxicity of HAcAms and its potential toxicological impact on human and ecological environment.
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Affiliation(s)
- Xinliang Ding
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi, 214023, China
| | - Jingying Zhu
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi, 214023, China
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou, China
| | - Tianyu Dong
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Jiandong Jiao
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi, 214023, China.
| | - Xinru Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
| | - Weijie Zhou
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi, 214023, China.
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Ding X, Zhu J, Wang X, Zhou W, Wu K, Zhou Z, Zhou K, Wu D, Jiao J, Xia Y, Wang X. Different cytotoxicity of disinfection by-product haloacetamides on two exposure pathway-related cell lines: Human gastric epithelial cell line GES-1 and immortalized human keratinocyte cell line HaCaT. Sci Total Environ 2019; 692:1267-1275. [PMID: 31539958 DOI: 10.1016/j.scitotenv.2019.07.279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/09/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Humans are exposed to disinfection by-products (DBPs) mainly through drinking water ingestion and dermal contact. As an emerging class of nitrogenous DBPs (N-DBPs), haloacetamides (HAcAms) have been found to have significantly higher cytotoxicity than regulated DBPs. In this study, we investigated the cytotoxicity of HAcAms on two exposure pathway-related cell lines: human gastric epithelial GES-1 cells and immortalized keratinocytes HaCaT. Our results showed that the ranking order of cytotoxicity of 13 HAcAms was different between HaCaT and GES-1 cells. In addition, the 50% inhibitive concentration in HaCaT was 1.01-3.29 times that in GES-1. Further comparison among GES-1, HaCaT and CHO cell lines confirmed that different cell lines exhibited different sensitivity to the same compound. Importantly, HAcAms showed 5.83-7.13 × 104 times higher toxicity than the well-clarified DBP chloroform, clearly demonstrating the increased toxicity of HAcAms. Finally, using a novel high-content screening (HCS) analysis, we found that 39.29% of chlorinated HAcAms, 42.86% of brominated HAcAms and 16.07% of iodinated HAcAms significantly affected at least one of the cell-health parameters, such as nuclear size, membrane permeability, mitochondrial membrane potential, or cytochrome c release, in GES-1 or HaCaT cells. Thus, brominated HAcAms appear to have stronger effects under the sublethal exposure dose, possibly causing cytotoxicity via apoptosis. Together, our study provides new insights to the toxicity of HAcAms and a comprehensive toxicology dataset for health risk assessment.
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Affiliation(s)
- Xinliang Ding
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Jingying Zhu
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Xiaoxiao Wang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Weijie Zhou
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Keqin Wu
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - Zhu Zhou
- Department of Chemistry, York College, The City University of New York, Jamaica, N.Y. 11451
| | - Kun Zhou
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Di Wu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jiandong Jiao
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China.
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Xinru Wang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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Sun HJ, Zhang JY, Wang Q, Zhu E, Chen W, Lin H, Chen J, Hong H. Environmentally relevant concentrations of arsenite induces developmental toxicity and oxidative responses in the early life stage of zebrafish. Environ Pollut 2019; 254:113022. [PMID: 31408795 DOI: 10.1016/j.envpol.2019.113022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/15/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Arsenic (As) present in water is a nonignorable environmental issue, even at low concentrations (≤150 μg L-1). To evaluate the toxic effect of low concentrations of As, zebrafish at early life stage were exposed to 0, 25, 50, 75, or 150 μg L-1 AsIII for 120 h. Our results indicated that low concentration of AsIII decreased zebrafish larvae's survival rate to 85%, 89% and 86% at 50, 75 and 150 μg L-1. Furthermore, low concentrations of AsIII exposure caused oxidative stress (elevated superoxide dismutase (SOD) activity and influenced the mRNA transcriptional levels of Cu/ZnSOD and MnSOD) and damage (increased malondialdehyde levels). Meanwhile, zebrafish larvae regulated the mRNA transcription of metallothionein and heat shock protein 70 to alleviate toxicity caused by AsIII. These results revealed lower concentrations (≤150 μg L-1) of AsIII had a detriment effect on the survival of fish at early life stage, moreover, oxidative stress caused by AsIII posed potential risk for the zebrafish. This study provides novel insight into low concentration AsIII-induced toxicity in zebrafish.
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Affiliation(s)
- Hong-Jie Sun
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China.
| | - Jing-Ying Zhang
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Qiang Wang
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Engao Zhu
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Wenrong Chen
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Hongjun Lin
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Jianrong Chen
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Huachang Hong
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
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Zhang Y, Sun HJ, Zhang JY, Ndayambaje E, Lin H, Chen J, Hong H. Chronic exposure to dichloroacetamide induces biochemical and histopathological changes in the gills of zebrafish. Environ Toxicol 2019; 34:781-787. [PMID: 30884105 DOI: 10.1002/tox.22744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 05/15/2023]
Abstract
To evaluate the impact of DCAcAm on zebrafish gill, we measure the responses of antioxidant enzyme (superoxide dismutase, SOD), lipid peroxidation (malondialdehyde, MDA), ATPase (Na+ /K+ -ATPase and Ca2+ /Mg2+ -ATP) and histopathological changes of gill in adult zebrafish, after exposed to different concentrations of DCAcAm (0, 1, 10, 100, and 1000 μg L-1 ) for 30 days. Results indicated that DCAcAm first increased and then decreased SOD activity, and DCAcAm also lowered the activities of Na+ /K+ -ATPase and Ca2+ /Mg2+ -ATPase. These results indicated that high affinity of DCAcAm probably be a main factor, which can damage the structures of enzymes, thereby inhibiting the SOD and ATPase activities. Besides, histopathological investigation results also manifested that chronic exposure to DCAcAm can damage the gill tissues, disrupting the normal function of gills. We conclude that chronic exposure to DCAcAm was harmful to organisms, not only influence gill function, but also further cause damage on the gill tissues.
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Affiliation(s)
- Yu Zhang
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
| | - Hong-Jie Sun
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
| | - Jing-Ying Zhang
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
| | - Emmanuel Ndayambaje
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
| | - Hongjun Lin
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
| | - Jianrong Chen
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
| | - Huachang Hong
- College of Geography and Environmental Science, Zhejiang Normal University, Zhejiang, China
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Zhang X, Jiang X, Croley TR, Boudreau MD, He W, Cai J, Li P, Yin JJ. Ferroxidase-like and antibacterial activity of PtCu alloy nanoparticles. J Environ Sci Health C Environ Carcinog Ecotoxicol Rev 2019; 37:99-115. [PMID: 31099294 DOI: 10.1080/10590501.2019.1602991] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Many metal nanoparticles are reported to have intrinsic enzyme-like activities and offer great potential in chemical and biomedical applications. In this study, PtCu alloy nanoparticles (NPs), synthesized through hydrothermal treatment of Cu2+ and Pt2+ in an aqueous solution, were evaluated for ferroxidase-like and antibacterial activity. Electron spin resonance (ESR) spectroscopy and colorimetric methods were used to demonstrate that PtCu NPs exhibited strong ferroxidase-like activity in a weakly acidic environment and that this activity was not affected by the presence of most other ions, except silver. Based on the color reaction of salicylic acid in the presence of Fe3+, we tested the ferroxidase-like activity of PtCu NPs to specifically detect Fe2+ in a solution of an oral iron supplement and compared these results with data acquired from atomic absorption spectroscopy and the phenanthroline colorimetric method. The results showed that the newly developed PtCu NPs detection method was equivalent to or better than the other two methods used for Fe2+ detection. The antibacterial experiments showed that PtCu NPs have strong antibacterial activity against Staphylococcus aureus and Escherichia coli. Herein, we demonstrate that the peroxidase-like activity of PtCu NPs can catalyze H2O2 and generate hydroxyl radicals, which may elucidate the antibacterial activity of the PtCu NPs against S. aureus and E. coli. These results showed that PtCu NPs exhibited both ferroxidase- and peroxidase-like activity and that they may serve as convenient and efficient NPs for the detection of Fe2+ and for antibacterial applications.
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Affiliation(s)
- Xiaowei Zhang
- a Food and Bioengineering College , Xuchang University , Xuchang , P. R. China
- c Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , MD , USA
| | - Xiumei Jiang
- c Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , MD , USA
| | - Timothy R Croley
- c Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , MD , USA
| | - Mary D Boudreau
- d National Center for Toxicological Research , U.S. Food and Drug Administration , Jefferson , AR , USA
| | - Weiwei He
- b Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, College of Advanced Materials and Energy , Institute of Surface Micro and Nano Materials, Xuchang University , Xuchang , P. R. China
| | - Junhui Cai
- b Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, College of Advanced Materials and Energy , Institute of Surface Micro and Nano Materials, Xuchang University , Xuchang , P. R. China
| | - Peirui Li
- a Food and Bioengineering College , Xuchang University , Xuchang , P. R. China
| | - Jun-Jie Yin
- c Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , MD , USA
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