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Wang Y, Zhao X, Tang H, Wang Z, Ge X, Hu S, Li X, Guo S, Liu R. The size-dependent effects of nanoplastics in mouse primary hepatocytes from cells to molecules. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 355:124239. [PMID: 38810687 DOI: 10.1016/j.envpol.2024.124239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/22/2024] [Accepted: 05/26/2024] [Indexed: 05/31/2024]
Abstract
Nanoplastics (NPs) are easily ingested by organisms and their major accumulation organ was determined to be liver. To date, the size-dependent cytotoxicity of NPs on mammalian hepatocytes remains unclear. This study utilized mouse primary hepatocytes and catalase (CAT) as specific receptors to investigate the toxicity of NPs from cells to molecules, focusing on size-dependent effects. Results showed that the larger the particle size of NP at low doses (≤50 mg/L), the most pronounced inhibitory effect on hepatocyte viability. 20 nm NPs significantly inhibit cell viability only at high doses (100 mg/L). Larger NP particles (500 nm and 1000 nm) resulted in a massive release of lactate dehydrogenase (LDH) from the cell (cell membrane damage). Reactive oxygen species (ROS), superoxide dismutase (SOD) and CAT tests suggest that NPs disturbed the cellular antioxidant system. 20 nm NPs show great strength in oxidizing lipids and disrupting mitochondrial function compared to NPs of other particle sizes. The degree of inhibition of CAT activity by different sized NPs was coherent at the cellular and molecular levels, and NP-500 had the most impact. This suggests that the structure and microenvironment of the polypeptide chain in the vicinity of the CAT active site is more susceptible to proximity and alteration by NP-500. In addition, the smaller NPs are capable of inducing relaxation of CAT backbone, disruption of H-bonding and reduction of α-helix content, whereas the larger NPs cause contraction of CAT backbone and increase in α-helix content. All NPs induce CAT fluorescence sensitization and make the chromophore microenvironment hydrophobic. This study provides new insights for NP risk assessment and applications.
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Affiliation(s)
- Yaoyue Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, China
| | - Xingchen Zhao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, China
| | - Houquan Tang
- Jinan Ecological and Environmental Monitoring Center, Jinan, 250104, China
| | - Zaifeng Wang
- Jinan Ecological and Environmental Monitoring Center, Jinan, 250104, China
| | - Xuan Ge
- Jinan Ecological and Environmental Monitoring Center, Jinan, 250104, China
| | - Shaoyang Hu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, China
| | - Shuqi Guo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, China.
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Murthy MK, Khandayataray P, Mohanty CS, Pattanayak R. Investigating the toxic mechanism of iron oxide nanoparticles-induced oxidative stress in tadpole (Duttaphrynus melanostictus): A combined biochemical and molecular study. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 107:104432. [PMID: 38554986 DOI: 10.1016/j.etap.2024.104432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/09/2023] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Metal oxide nanomaterials have toxicity towards aquatic organisms, especially microbes and invertebrates, but little is known about their impact on amphibians. We conducted a study on Duttaphrynus melanostictus (D. melanostictus) tadpoles to explore the chronic toxicity effects of iron oxide nanoparticles (IONPs) and the underlying mechanisms of IONPs-induced oxidative stress. IONPs exposure led to increased iron accumulation in the blood, liver, and kidneys of tadpoles, significantly affecting blood parameters and morphology. Higher IONPs concentrations (10 and 50 mg L-1) triggered reactive oxygen species generation, resulting in lipid peroxidation, oxidative stress, and pronounced toxicity in tadpoles. The activity levels of antioxidant enzymes/proteins (SOD, CAT, albumin, and lysozyme) decreased after IONPs exposure, and immunological measures in the blood serum were significantly reduced compared to the control group. Molecular docking analysis revealed that IONPs primarily attached to the surface of SOD/CAT/albumin/lysozyme through hydrogen bonding and hydrophobic forces. Overall, this study emphasizes the ability of IONPs to induce oxidative damage by decreasing immunological profiles such as ACH50 (34.58 ± 2.74 U mL-1), lysozyme (6.94 ± 0.82 U mL-1), total Ig (5.00 ± 0.35 g dL-1), total protein (1.20 ± 0.17 g dL-1), albumin (0.52 ± 0.01 g dL-1) and globulin (0.96 ± 0.01 g dL-1) and sheds light on their potential toxic effects on tadpoles.
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Affiliation(s)
- Meesala Krishna Murthy
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Punjab 140401, India; Department of Zoology, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha 751003, India
| | - Pratima Khandayataray
- Department of Biotechnology, Academy of Management and Information Technology, Utkal University, Bhubaneswar, Odisha 752057, India
| | - Chandra Sekhar Mohanty
- Plant Genetic Resources and Improvement Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh 226001, India
| | - Rojalin Pattanayak
- Department of Zoology, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha 751003, India.
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He F, Wan J, Huo C, Li X, Cui Z, Li Y, Liu R, Zong W. New strategies for evaluating imidacloprid-induced biological consequences targeted to Eisenia fetida species and the corresponding mechanisms of its toxicity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 349:119456. [PMID: 37897899 DOI: 10.1016/j.jenvman.2023.119456] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/04/2023] [Accepted: 10/21/2023] [Indexed: 10/30/2023]
Abstract
Imidacloprid (IMI), a neonicotinoid insecticide, has a wide variety of applications in both agriculture and horticulture. As a result of it massive and repeated use, its traces remained in soil pose severe damage to soil invertebrates, particularly earthworms. Limited information is available regarding the underlying mechanisms of IMI toxicity toward earthworms at the molecular, transcriptional, and cellular levels. Here, Eisenia fetida coelomocytes and key defensive proteins were selected as targeted receptors to explore the toxic mechanisms of oxidative stress-mediated cytotoxicity, genotoxicity, and antioxidant responses induced by IMI stress and the molecular mechanisms underlying the binding of IMI and superoxide dismutase (SOD)/catalase (CAT). Results showed that IMI exposure destroyed the cell membrane integrity of earthworm cells, causing cell damage and cytotoxicity. The intracellular levels of ROS, including ·O2- and H2O2 were induced by IMI exposure, thereby triggering oxidative stress and damage. Moreover, IMI exposure attenuated the antioxidative stress responses (reduced antioxidant capacity and CAT/SOD activities) and caused deleterious effects (enhanced DNA damage, lipid peroxidation (LPO), and protein carbonylation (PCO)) through ROS-mediated oxidative stress pathway. Aberrant gene expression associated with oxidative stress and defense regulation, including CAT, CRT, MT, SOD, GST, and Hsp70 were induced after IMI exposure. Concentration-dependent conformational and structural alterations of CAT/SOD were observed when IMI binding. Also, direct binding of IMI resulted in significant inhibition of CAT/SOD activities in vitro. Molecular simulation showed that IMI preferred to bind to CAT active center through its direct binding with the key residue Tyr 357, while IMI bound more easily to the connecting cavity of two subunits away from SOD active center. In addition, hydrogen bonds and hydrophobic force are the main driving force of IMI binding with CAT/SOD. These findings have implications for comprehensive evaluation of IMI toxicity to soil eco-safety and offer novel strategies to elucidate the toxic mechanisms and pathways of IMI stress.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Jingqiang Wan
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Chengqian Huo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Zhihan Cui
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Yuze Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China.
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, Shandong, 250014, PR China
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Sun N, Wang J, Shi H, Li X, Guo S, Wang Y, Hu S, Liu R, Gao C. Compound effect and mechanism of oxidative damage induced by nanoplastics and benzo [a] pyrene. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132513. [PMID: 37708649 DOI: 10.1016/j.jhazmat.2023.132513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023]
Abstract
Nanoplastics and polycyclic aromatic hydrocarbons (PAHs) are ubiquitous in soil environments. In order to objectively evaluate the toxic interaction between polystyrene nanoplastics (PS NPs) and benzo [a] pyrene (BaP), oxidative damage at the level of earthworm cells and biomacromolecules was investigated by experiments combined with molecular dynamics simulation. Studies on cells reveal that PS NPs and BaP had synergistic toxicity when it came to causing oxidative stress. Cellular reactive oxygen species (ROS) levels under combined pollutant exposure were 24% and 19% higher, respectively than when PS NPs and BaP were exposed alone (compared to the blank group). In addition, BaP and PS NPs inhibited the ability of CAT to decompose H2O2 by affecting the structure of the proximal amino acid Tyr 357 in the active center of CAT, which exacerbated oxidative stress to a certain extent. Therefore, the synergistic toxic effect of BaP and PS NPs is due to the mutual complement of the two to the induction of protein structural looseness, and the strengthening of the stability of the conjugate (CAT-BaP-PS) under the weak interaction. This work provides a new perspective and approach on how to talk about the toxicity of combined pollutants.
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Affiliation(s)
- Ning Sun
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Jinhu Wang
- College of Chemistry, Chemical Engineering and Material Science, Zaozhuang University, Zaozhuang, Shandong Province 277160, PR China
| | - Huijian Shi
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Shuqi Guo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Yaoyue Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Shaoyang Hu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
| | - Canzhu Gao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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Gardner AM, Gardner PR. Dioxygen and glucose force motion of the electron-transfer switch in the iron(III) flavohemoglobin-type nitric oxide dioxygenase. J Inorg Biochem 2023; 245:112257. [PMID: 37229820 DOI: 10.1016/j.jinorgbio.2023.112257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/28/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023]
Abstract
Kinetic and structural investigations of the flavohemoglobin-type NO dioxygenase have suggested critical roles for transient Fe(III)O2 complex formation and O2-forced movements affecting hydride transfer to the FAD cofactor and electron-transfer to the Fe(III)O2 complex. Stark-effect theory together with structural models and dipole and internal electrostatic field determinations provided a semi-quantitative spectroscopic method for investigating the proposed Fe(III)O2 complex and O2-forced movements. Deoxygenation of the enzyme causes Stark effects on the ferric heme Soret and charge-transfer bands revealing the Fe(III)O2 complex. Deoxygenation also elicits Stark effects on the FAD that expose forces and motions that create a more restricted NADH access to FAD for hydride transfer and switch electron-transfer off. Glucose also forces the enzyme toward an off state. Amino acid substitutions at the B10, E7, E11, G8, D5, and F7 positions influence the Stark effects of O2 on resting heme spin states and FAD consistent with the proposed roles of the side chains in the enzyme mechanism. Deoxygenation of ferric myoglobin and hemoglobin A also induces Stark effects on the hemes suggesting a common 'oxy-met' state. The ferric myoglobin and hemoglobin heme spectra are also glucose-responsive. A conserved glucose or glucose-6-phosphate binding site is found bridging the BC-corner and G-helix in flavohemoglobin and myoglobin suggesting novel allosteric effector roles for glucose or glucose-6-phosphate in the NO dioxygenase and O2 storage functions. The results support the proposed roles of a ferric O2 intermediate and protein motions in regulating electron-transfer during NO dioxygenase turnover.
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Affiliation(s)
- Anne M Gardner
- Research and Development Division, Miami Valley Biotech, Suite 2445, 1001 E. 2(nd) Street, Dayton, OH 45402, USA; Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, R033, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.
| | - Paul R Gardner
- Research and Development Division, Miami Valley Biotech, Suite 2445, 1001 E. 2(nd) Street, Dayton, OH 45402, USA; Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, R033, 3333 Burnet Avenue, Cincinnati, OH 45229, USA; Chemistry and Biochemistry Department, University of Dayton, 300 College Park, Dayton, OH 45469, USA.
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Cui Z, He F, Li X, Li Y, Huo C, Wang H, Qi Y, Tian G, Zong W, Liu R. Response pathways of superoxide dismutase and catalase under the regulation of triclocarban-triggered oxidative stress in Eisenia foetida: Comprehensive mechanism analysis based on cytotoxicity and binding model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158821. [PMID: 36116645 DOI: 10.1016/j.scitotenv.2022.158821] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
Triclocarban (TCC) is an emerging environmental contaminant, posing potential ecological risks. Displaying a high accumulation effect and 120-day half-life in the soil environment, the toxic effects of TCC to soil organisms have been widely reported. Previous studies have confirmed that TCC can induce the oxidative stress and changes in superoxide dismutase (SOD) and catalase (CAT) activities in earthworms, but the underlying mechanisms of oxidative stress and disorder in antioxidant enzyme activities induced by TCC have not yet been elucidated. Here, we explored the multiple response mechanisms of SOD and CAT under the regulation of oxidative stress induced by TCC. Results indicated that higher-dose (0-2.0 mg/L) TCC exposure triggered the overproduction of ROS in Eisenia foetida coelomocytes, causing oxidative damage and a decrease in cell viability that was response to ROS accumulation. The TCC-induced inhibition of intracellular SOD/CAT activity was found under the regulation of oxidative stress (SOD: 29.2 %; CAT: 18.5 %), and this effect was blunted by antioxidant melatonin. At the same time, the interaction between antioxidative enzymes and TCC driven by various forces (SOD: electrostatic interactions; CAT: van der Waals forces and hydrogen bonding) led to inhibited SOD activity (9.84 %) and enhanced CAT activity (17.5 %). Then, to elucidate the binding mode of TCC, we explored the changes in SOD and CAT structure (protein backbone and secondary structure), the microenvironment of aromatic amino acids, and aggregation behavior through multispectral techniques. Molecular docking results showed that TCC inhibited SOD activity in a substrate competitive manner and enhanced CAT activity by the stabilizing effects of TCC on the heme groups. Collectively, this study reveals the response mechanisms of SOD/CAT under the regulation of TCC-triggered oxidative stress and shed a new light on revealing the toxic pathways of exogenous pollutants on antioxidant-related proteins function.
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Affiliation(s)
- Zhihan Cui
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Falin He
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Yuze Li
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Chengqian Huo
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Hao Wang
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Yuntao Qi
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Guang Tian
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, Shandong 250014, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, PR China; America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China.
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Chowdhary AB, Singh J, Quadar J, Singh S, Singh A, Dutta R, Angmo D, Vig AP. Metsulfuron-methyl induced physiological, behavioural and biochemical changes in exotic (Eisenia fetida) and indigenous (Metaphire posthuma) earthworm species: Toxicity and molecular docking studies. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105276. [PMID: 36464335 DOI: 10.1016/j.pestbp.2022.105276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/22/2022] [Accepted: 10/27/2022] [Indexed: 06/17/2023]
Abstract
In modern agricultural practices, Metsulfuron-methyl (sulfonylurea herbicide) is widely employed to inhibit the weeds and grasses. The current study revealed that Metaphire posthuma was more sensitive than Eisenia fetida against Metsulfuron-methyl (MSM). The LC50 values for Eisenia fetida were 2884.08 mgkg-1 and 1871.18 mgkg-1after 7 and 14 days, respectively. Similarly, the LC50 values for Metaphire posthuma were 2449.34 mgkg-1 and 1673.10 mgkg-1for 7 and 14 days, respectively. Reproduction parameters were significantly decreased at 400 (T3), 800 (T4) and 1600 (T5) mgkg-1 MSM in E. fetida whereas at 200 (T2), 400 (T3), 800 (T4), 1600 (T5) mgkg-1 MSM in M. posthuma. EC50 of avoidance response for 20% MSM by E. fetida and M. posthuma was recorded 901.76 mgkg-1and 544.21 mgkg-1 respectively. Malondialdehyde (MDA) content along with guaiacol peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD) activities were initially increased up to 21st day by MSM, inducing a slight oxidative stress in earthworms and recovered to control level on 28th day. The GST activities were continuously stimulated throughout the exposure period and enhance the detoxification effect thereby preventing the earthworms from toxins. Molecular docking studies indicated that hydrogen bonding and hydrophobic interactions are key forces in binding between MSM and SOD/CAT/POD/GST. As a result, this is the first study to be reported on physiological, behavioural and biochemical changes in two different earthworm species under the exposure of sulfonyl urea herbicide.
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Affiliation(s)
- Anu Bala Chowdhary
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University Amritsar, Punjab 143005, India.
| | - Jaswinder Singh
- Post Graduate Department of Zoology, Khalsa College Amritsar, Punjab 143002, India.
| | - Jahangir Quadar
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University Amritsar, Punjab 143005, India
| | - Sharanpreet Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University Amritsar, Punjab 143005, India
| | - Atamjit Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Rahil Dutta
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University Amritsar, Punjab 143005, India
| | - Deachen Angmo
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University Amritsar, Punjab 143005, India
| | - Adarsh Pal Vig
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University Amritsar, Punjab 143005, India.
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Zayed KM, Guo YH, Lv S, Zhang Y, Zhou XN. Molluscicidal and antioxidant activities of silver nanoparticles on the multi-species of snail intermediate hosts of schistosomiasis. PLoS Negl Trop Dis 2022; 16:e0010667. [PMID: 36215300 PMCID: PMC9550036 DOI: 10.1371/journal.pntd.0010667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 07/15/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Schistosomiasis, also known as bilharzia, is the second important parasitic disease after malaria. The present study aimed to evaluate the molluscicidal effects of silver nanoparticles on Biomphalaria alexandrina, B. glabrata, Oncomelania hupensis, snail intermediate hosts of intestinal schistosomes (i.e. Schistosoma mansoni and S. japonicum), along with the changes their antioxidant enzymes. METHODS Silver (Ag) nano powder (Ag-NPs) was selected to test the molluscicidal effects on three species of freshwater snails. Exposure to Ag-NPs induced snail mortality and the LC50 and LC90 values of Ag-NPs for each snail species were calculated by probit analysis. Control snails were maintained under the same experimental conditions in dechlorinated water. Snail hemolymph was collected to measure the levels of antioxidant enzymes, such as total antioxidants capacity (TCA), glutathione (GSH), catalase (CAT) and nitric oxide (NO). In addition, the non-target organism, Daphnia magna, was exposed to a series of Ag-NPs concentration, similar to the group of experimental snails, in order to evaluate the LC50 and LC90 and compare these values to those obtained for the targeted snails. RESULTS The results indicated that Ag-NPs had a molluscicidal effect on tested snails with the variation in lethal concentration. The LC50 values of Ag-NPs for B. alexandrina snails exposed for 24, 48, 72 hrs and 7 days were 7.91, 5.69, 3.83 and 1.91 parts per million (ppm), respectively. The LC50 values for B. glabrata snails exposed for 24, 48, 72 hrs and 7 days were 16.55, 10.44, 6.91 and 4.13 ppm, respectively, while the LC50 values for O. hupensis snails exposed for 24, 48, 72 hrs and 7 days were 46.5, 29.85, 24.49 and 9.62 ppm, respectively. Moreover, there is no mortality detected on D. magna when exposed to more than double and half concentration (50 ppm) of Ag-NPs during a continuous period of 3 hrs, whereas the LC90 value for B. alexandrina snails was 18 ppm. The molluscicidal effect of the synthesized Ag-NPs seems to be linked to a potential reduction of the antioxidant activity in the snail's hemolymph. CONCLUSIONS Synthesized Ag-NPs have a clear molluscicidal effect against various snail intermediate hosts of intestinal schistosome parasites and could potentially serve as next generation molluscicides.
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Affiliation(s)
- Khaled M. Zayed
- Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, People’s Republic of China
- NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, People’s Republic of China
| | - Yun-Hai Guo
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, People’s Republic of China
- NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, People’s Republic of China
| | - Shan Lv
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, People’s Republic of China
- NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, People’s Republic of China
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Yi Zhang
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, People’s Republic of China
- NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, People’s Republic of China
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Xiao-Nong Zhou
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, People’s Republic of China
- NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, People’s Republic of China
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- * E-mail:
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Li X, Li M, Sun N, He F, Chu S, Zong W, Niu Q, Liu R. Response of earthworm coelomocytes and catalase to pentanone and hexanone: a revelation of the toxicity of conventional solvents at the cellular and molecular level. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:44282-44296. [PMID: 35128610 DOI: 10.1007/s11356-022-18864-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Organic solvents like 2-pentanone and 2-hexanone which are widely used in industrial production make up a large proportion of the source of chemical pollution. What is worrisome is that the cellular and molecular toxicity of 2-pentanone and 2-hexanone has not been reported yet. Based on this, earthworms and catalase (CAT) were chosen as target receptors for the toxicity studies. The cytotoxicity of 2-pentanone and 2-hexanone was revealed by measuring the multiple intracellular indicators of oxidative stress. At the molecular level, changes in the structure and function of CAT were characterized in vitro by the spectroscopy and molecular docking. The results show that 2-pentanone and 2-hexanone that induced the accumulation of reactive oxygen species can eventually reduce coelomocytes viability, accompanying by the regular changes of antioxidant activity and lipid peroxidation level. In addition, the exposure of 2-pentanone and 2-hexanone can shrink the backbone structure of CAT, quench the fluorescence, and misfold the secondary structure. The decrease in enzyme activity should be attributed to the structural changes induced by surface binding. This study discussed the toxicological effects and mechanisms of conventional solvents at the cellular and molecular level, which creatively proposed a joint research method.
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Affiliation(s)
- Xiangxiang Li
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Meifei Li
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Ning Sun
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Falin He
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Shanshan Chu
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, 250014, People's Republic of China
| | - Qigui Niu
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, China - America CRC for Environment & Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China.
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10
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Manna S, Ruano CSM, Hegenbarth JC, Vaiman D, Gupta S, McCarthy FP, Méhats C, McCarthy C, Apicella C, Scheel J. Computational Models on Pathological Redox Signalling Driven by Pregnancy: A Review. Antioxidants (Basel) 2022; 11:585. [PMID: 35326235 PMCID: PMC8945226 DOI: 10.3390/antiox11030585] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 02/04/2023] Open
Abstract
Oxidative stress is associated with a myriad of diseases including pregnancy pathologies with long-term cardiovascular repercussions for both the mother and baby. Aberrant redox signalling coupled with deficient antioxidant defence leads to chronic molecular impairment. Abnormal placentation has been considered the primary source for reactive species; however, placental dysfunction has been deemed secondary to maternal cardiovascular maladaptation in pregnancy. While various therapeutic interventions, aimed at combating deregulated oxidative stress during pregnancy have shown promise in experimental models, they often result as inconclusive or detrimental in clinical trials, warranting the need for further research to identify candidates. The strengths and limitations of current experimental methods in redox research are discussed. Assessment of redox status and oxidative stress in experimental models and in clinical practice remains challenging; the state-of-the-art of computational models in this field is presented in this review, comparing static and dynamic models which provide functional information such as protein-protein interactions, as well as the impact of changes in molecular species on the redox-status of the system, respectively. Enhanced knowledge of redox biology in during pregnancy through computational modelling such as generation of Systems Biology Markup Language model which integrates existing models to a larger network in the context of placenta physiology.
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Affiliation(s)
- Samprikta Manna
- Department of Obstetrics and Gynaecology, Cork University Maternity Hospital, University College Cork, T12 YE02 Cork, Ireland;
| | - Camino S. M. Ruano
- Institut Cochin, Inserm U1016, UMR8104 CNRS, Université de Paris, 75014 Paris, France; (C.S.M.R.); (D.V.); (C.M.); (C.A.)
| | - Jana-Charlotte Hegenbarth
- Department of Molecular Genetics, Faculty of Science and Engineering, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6211 KH Maastricht, The Netherlands;
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Daniel Vaiman
- Institut Cochin, Inserm U1016, UMR8104 CNRS, Université de Paris, 75014 Paris, France; (C.S.M.R.); (D.V.); (C.M.); (C.A.)
| | - Shailendra Gupta
- Department of Systems Biology and Bioinformatics, Rostock University, 18051 Rostock, Germany; (S.G.); (J.S.)
| | - Fergus P. McCarthy
- Department of Obstetrics and Gynaecology, Cork University Maternity Hospital, University College Cork, T12 YE02 Cork, Ireland;
| | - Céline Méhats
- Institut Cochin, Inserm U1016, UMR8104 CNRS, Université de Paris, 75014 Paris, France; (C.S.M.R.); (D.V.); (C.M.); (C.A.)
| | - Cathal McCarthy
- Department of Pharmacology and Therapeutics, Western Gateway Building, University College Cork, T12 K8AF Cork, Ireland;
| | - Clara Apicella
- Institut Cochin, Inserm U1016, UMR8104 CNRS, Université de Paris, 75014 Paris, France; (C.S.M.R.); (D.V.); (C.M.); (C.A.)
| | - Julia Scheel
- Department of Systems Biology and Bioinformatics, Rostock University, 18051 Rostock, Germany; (S.G.); (J.S.)
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11
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Shilpa O, Anupama KP, Antony A, Gurushankara HP. Lead (Pb) induced Oxidative Stress as a Mechanism to Cause Neurotoxicity in Drosophila melanogaster. Toxicology 2021; 462:152959. [PMID: 34560124 DOI: 10.1016/j.tox.2021.152959] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/20/2022]
Abstract
The widespread use of lead (Pb) has caused global contamination, inevitable human exposure, and public health problems. Pb neurotoxicity has been linked to various human diseases, but its associated mechanism causing neurotoxicity is unknown. Drosophila melanogaster as a model organism has been used to study the mechanism involved in Pb-caused neurotoxicity and the potential role of antioxidants in ameliorating its harmful effects. The larval feeding technique was adopted to administer different concentrations of Pb (0.2-0.8 mM) to Oregon-R (ORR), superoxide dismutase (Sod), or catalase (Cat) overexpressing, and Sod or Cat knockdown flies to analyse Pb load, oxidative stress components, DNA damage, apoptosis and vacuolation in the brain. The results revealed that Pb accumulation in the Drosophila brain induces oxidative stress by generating reactive oxygen species (ROS) and lipid peroxidation (LPO), depleting antioxidant enzymes. Molecular docking studies have evidenced it. Pb directly binds to antioxidants and major grooves of DNA, leading to DNA damage. Increased DNA damage, apoptosis, vacuolation in brains of Pb-treated ORR, Sod, or Cat knockdown flies; and on the contrary, reduced oxidative DNA damage, apoptosis, and vacuolation in brains of Pb treated Sod or Cat overexpressed flies put forward that oxidative stress is the mechanism in Pb caused neurotoxicity.
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Affiliation(s)
- Olakkaran Shilpa
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya, 671320, Kasaragod, India
| | - Kizhakke Purayil Anupama
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya, 671320, Kasaragod, India
| | - Anet Antony
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya, 671320, Kasaragod, India
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12
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He F, Liu Q, Jing M, Wan J, Huo C, Zong W, Tang J, Liu R. Toxic mechanism on phenanthrene-induced cytotoxicity, oxidative stress and activity changes of superoxide dismutase and catalase in earthworm (Eisenia foetida): A combined molecular and cellular study. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126302. [PMID: 34118541 DOI: 10.1016/j.jhazmat.2021.126302] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/31/2021] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
Phenanthrene (PHE) is an important organic compound, which is widespread in the soil environment and exhibits potential threats to soil organisms. Toxic effects of PHE to earthworms have been extensively studied, but toxic mechanisms on PHE-induced cytotoxicity and oxidative stress at the molecular and cellular levels have not been reported yet. Therefore, we explored the cytotoxicity and oxidative stress caused by PHE in earthworm coelomocytes and the interaction mechanism between PHE and the major antioxidant enzymes SOD/CAT. It was shown that high-dose PHE exposure induced the intracellular reactive oxygen species (ROS) generation, mediated lipid peroxidation, reduced total antioxidant capacity (T-AOC) in coelomocytes, and triggered oxidative stress, thus resulted in a strong cytotoxicity at higher concentrations (0.6-1.0 mg/L). The intracellular SOD/CAT activity in cells after PHE exposure were congruent with that in molecular levels, which the activity of SOD enhanced and CAT inhibited. Spectroscopic studies showed the SOD/CAT protein skeleton and secondary structure, as well as the micro-environment of aromatic amino acids were changed after PHE binding. Molecular docking indicated PHE preferentially docked to the surface of SOD. However, the key residues Tyr 357, His 74, and Asn 147 for activity were in the binding pocket, indicating PHE more likely to dock to the active center of CAT. In addition, H-bonding and hydrophobic force were the primary driving force in the binding interaction between PHE and SOD/CAT. This study indicates that PHE can induce cytotoxicity and oxidative damage to coelomocytes and unearthes the potential effects of PHE on earthworms.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Qiang Liu
- Solid Waste and Hazardous Chemicals Pollution Prevention and Control Center of Shandong Province, 145# Jingshi West Road, Jinan 250117, PR China
| | - Mingyang Jing
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Jingqiang Wan
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Chengqian Huo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, Shandong 250014, PR China
| | - Jingchun Tang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Research Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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13
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Wang J, Yu X, Jia R, Liu R, Zong W. An in vitro and in silico study to explore the response of catalase to 4-chlorophenol and their interacting mechanisms. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Khan JM, Sen P, Malik A, Rehman MT, AlAjmi MF, Ahmed A, Alghamdi OHA, Ahmad A, Ahmed MZ, Khan RH, Anwer MK. Industrially important enzyme bovine liver catalase forms amyloid in the presence of 14-4-14 Gemini surfactant at physiological pH. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Sun N, Li M, Liu G, Jing M, He F, Cao Z, Zong W, Tang J, Gao C, Liu R. Toxic mechanism of pyrene to catalase and protective effects of vitamin C: Studies at the molecular and cell levels. Int J Biol Macromol 2021; 171:225-233. [PMID: 33418042 DOI: 10.1016/j.ijbiomac.2020.12.169] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/10/2020] [Accepted: 12/22/2020] [Indexed: 11/17/2022]
Abstract
Polycyclic aromatic hydrocarbons, distributing extensively in the soil, would potentially threaten the soil organisms (Eisenia fetida) by triggering oxidative stress. As a ubiquitous antioxidant enzyme, catalase can protect organisms from oxidative damage. To reveal the potential impact of polycyclic aromatic hydrocarbon pyrene (Pyr) on catalase (CAT) and the possible protective effect of Ascorbic acid (vitamin C), multi-spectral and molecular docking techniques were used to investigate the influence of structure and function of catalase by pyrene. Fluorescence and circular dichroism analysis showed that pyrene would induce the microenvironmental changes of CAT amino acid residues and increase the α-helix in the secondary structure. Molecular simulation results indicated that the main binding force of pyrene around the active center of CAT is hydrogen bonding force. Furthermore, pyrene inhibited catalase activity to 69.9% compared with the blank group, but the degree of inhibition was significantly weakened after vitamin C added into the research group. Cell level experiments showed that pyrene can increase the level of ROS in the body cavity cell of earthworms, and put the cells under the threat of potential oxidative damage. Antioxidants-vitamin C has a protective effect on catalase and maintains the stability of intracellular ROS levels to a certain extent.
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Affiliation(s)
- Ning Sun
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Meifei Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Guiliang Liu
- Shandong Institute for Food and Drug Control, Jinan 250101, PR China
| | - Mingyang Jing
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Zhaozhen Cao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, Shandong 250014, PR China
| | - Jingchun Tang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Research Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China
| | - Canzhu Gao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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16
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Khan JM, Malik A, Rehman MT, AlAjmi MF, Ahmed MZ, Almutairi GO, Anwer MK, Khan RH. Cationic gemini surfactant stimulates amyloid fibril formation in bovine liver catalase at physiological pH. A biophysical study. RSC Adv 2020; 10:43751-43761. [PMID: 35519682 PMCID: PMC9058321 DOI: 10.1039/d0ra07560d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/09/2020] [Indexed: 11/23/2022] Open
Abstract
Surfactant molecules stimulate amyloid fibrillation and conformational switching in proteins but the mechanisms by which they accomplish these effects are unclear. A cationic gemini surfactant, C16C4C16Br2, with two positively charged heads and two-16C hydrophobic tails induces the amyloid fibrillation of bovine liver catalase (BLC) in vitro at physiological pH. The BLC transformed into amyloid aggregates in the presence of low concentrations (2–150 μM) of C16C4C16Br2 at pH 7.4, as confirmed by the use of several biophysical techniques (Rayleigh light scattering (RLS), intrinsic fluorescence, thioflavin T fluorescence (ThT), far-UV circular dichroism, and transmission electron microscopy). The secondary structure of BLC also changed according to the concentration of C16C4C16Br2: the α-helical structure of BLC decreased in the presence of 2–100 μM of C16C4C16Br2 but at concentrations above 200 μM BLC regained a α-helical structure very similar to the native BLC. In silico molecular docking between BLC and C16C4C16Br2 suggest that the positively charged heads of the surfactant interact with Asp127 through attractive electrostatic interactions. Moreover, a Pi-cation electrostatic interaction and hydrophobic interactions also take place between the tails of the surfactant and BLC. The stability of the BLC–C16C4C16Br2 complex was confirmed by performing a molecular dynamics simulation and evaluating parameters such as root mean square deviation (RMSD), root mean square fluctuation (RMSF), radius of gyration (Rg), and solvent accessible surface area (SASA). Apart from its aggregation inducing properties, the gemini surfactant itself causes toxicity to the cancerous cell (A549): which is confirmed by MTT assay. This work delivers new insight into the effect of cationic gemini surfactants in amyloid aggregation and paves the way to the rational design of new anti-amyloidogenic agents. Surfactant molecules stimulate amyloid fibrillation and conformational switching in proteins but the mechanisms by which they accomplish these effects are unclear.![]()
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Affiliation(s)
- Javed Masood Khan
- Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University 2460 Riyadh 11451 Saudi Arabia
| | - Ajamaluddin Malik
- Department of Biochemistry, College of Science, King Saud University Riyadh Saudi Arabia
| | - Md Tabish Rehman
- Department of Pharmacognosy, College of Pharmacy, King Saud University Riyadh Saudi Arabia
| | - Mohamed F AlAjmi
- Department of Pharmacognosy, College of Pharmacy, King Saud University Riyadh Saudi Arabia
| | - Mohammad Z Ahmed
- Department of Pharmacognosy, College of Pharmacy, King Saud University Riyadh Saudi Arabia
| | - Ghada Obaid Almutairi
- Department of Biochemistry, College of Science, King Saud University Riyadh Saudi Arabia
| | - Md Khalid Anwer
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University Alkharj 11942 Saudi Arabia
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University Aligarh U.P. India
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17
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Kometsi L, Govender K, Mofo Mato EP, Hurchund R, Owira PMO. By reducing oxidative stress, naringenin mitigates hyperglycaemia-induced upregulation of hepatic nuclear factor erythroid 2-related factor 2 protein. J Pharm Pharmacol 2020; 72:1394-1404. [PMID: 32628779 DOI: 10.1111/jphp.13319] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 05/30/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Antioxidant and anti-inflammatory properties of naringenin could confer hepatoprotective effects. METHODS Chang cells in culture media were maintained at 37°C and treated with increased concentrations of glucose (5.5-50 mm) and/or naringenin (25-100 µm), respectively, for 24 h. The cells were harvested and carbonyl proteins, antioxidant enzymes and proteins measured in cell lysates. Sprague Dawley rats were divided into 5 groups (n = 7) and orally treated daily for 56 days with 3.0 ml/kg per body weight (BW) distilled water (group 1), 60 mg/kg BW of naringenin (groups 2 and 4), respectively. Groups 3, 4 and 5 were given single 60 mg/kg per BW intraperitoneal injections of streptozotocin or insulin (2.0 IU/kg BW bid), (group 5 only). KEY FINDINGS Cell viability was significantly decreased in response to increased hyperglycaemia but naringenin dose-dependently, significantly reversed this compared to controls, respectively. However, antioxidant enzyme activities were reduced due to increased and reduced oxidative stress, respectively. Naringenin further significantly reduced hepatic oxidative stress and nuclear factor erythroid 2-related factor 2 (Nrf2) protein expression and liver : body weight ratios in diabetic compared to controls rats. CONCLUSIONS Naringenin confers hepatoprotective antioxidant effects by initially preventing upregulation of Nrf2 protein expression and its downstream antioxidant enzymes.
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Affiliation(s)
- Lereko Kometsi
- Molecular and Clinical Pharmacology Research Laboratory, Department of Pharmacology, Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Khmera Govender
- Molecular and Clinical Pharmacology Research Laboratory, Department of Pharmacology, Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Edith P Mofo Mato
- Molecular and Clinical Pharmacology Research Laboratory, Department of Pharmacology, Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Rajendraparsad Hurchund
- Molecular and Clinical Pharmacology Research Laboratory, Department of Pharmacology, Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Peter M O Owira
- Molecular and Clinical Pharmacology Research Laboratory, Department of Pharmacology, Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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18
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Wang J, Zhang H, Zheng X, Liu R, Zong W. In vitro toxicity and molecular interacting mechanisms of chloroacetic acid to catalase. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109981. [PMID: 31812021 DOI: 10.1016/j.ecoenv.2019.109981] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Chloroacetic acid (CAA), one of typical disinfection by-products (DBPs), has attracted considerable concerns for its biological safety. Antioxidant enzyme catalase (CAT) plays a crucial part in the regulation of redox state balance. Herein, CAA was used to test its adverse effects on CAT and explore the underlying mechanism. The cell viability of mouse primary hepatocytes decreased under CAA exposure. A bell-shaped response to CAA exposure was observed in intracellular CAT activity, whose change was partly influenced by molecular CAT activity. CAA binds to CAT mainly via van der Waals forces and hydrogen bonds with a stoichiometry of 9.2. The binding caused structural changes in CAT with the unfolding of polypeptide chains and the decrease of α-helical content. CAA interacts with the amino acid residues surrounding the active sites and substrate channel of CAT. These interactions result in the decrease of molecular CAT activity, which could be restored by high ionic strength. This study has provided a combined molecular and cellular tactics for studying the adverse effects of DBPs on biomarkers and the underlying mechanisms.
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Affiliation(s)
- Jing Wang
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China.
| | - Hongfa Zhang
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Xiaolin Zheng
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, 250014, PR China
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19
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Zheng XT, Choi Y, Phua DGG, Tan YN. Noncovalent Fluorescent Biodot-Protein Conjugates with Well-Preserved Native Functions for Improved Sweat Glucose Detection. Bioconjug Chem 2020; 31:754-763. [PMID: 31995367 DOI: 10.1021/acs.bioconjchem.9b00856] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To overcome the traditional issues of protein labeling, we report herein an effective approach for noncovalent conjugation of the biomolecule-derived fluorescent nanodots (biodot) to functional proteins without the addition of chemical linkers for biosensor development. The as-prepared fluorescent biodot-protein conjugates are very stable near physiological pH, exhibiting excellent photostability and thermal stability. More importantly, the native functions of proteins, including drug binding and enzymatic activities, are well-preserved after conjugating with biodots. The optimized protein conjugation strategy is then applied to prepare biodot-glucose oxidase (GOx) fluorescent sensing probes for sweat glucose detection. Results show that the as-prepared sensing probes could achieve better assay performance than those covalent conjugates as demonstrated herein. Specifically, GOx in the noncovalently bound conjugates are able to catalyze the oxidation of glucose effectively, which generates hydrogen peroxide as a byproduct. In the presence of Fe2+, Fenton reaction takes place to produce hydroxyl radicals and Fe3+, leading to significant fluorescence quenching of biodots on the conjugates. This simple one-step enzymatic assay in a single probe achieves a wide linear range of 25-1000 μM (R2 = 0.99) with a low detection limit of 25 μM. Furthermore, negligible interference is observed in the complex artificial sweat sample for accurate glucose quantification, achieving an excellent recovery rate of 100.5 ± 2.2%. This work provides a facile conjugation method that is generally applicable to a wide range of proteins, which will help to accelerate future development of multifunctional fluorescent probes to provide optical signals with unique protein functions (e.g., enzymatic, recognition, etc.) for biomedical sensing and imaging.
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Affiliation(s)
- Xin Ting Zheng
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Yoonah Choi
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543, Singapore
| | - Darren Guan Ge Phua
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543, Singapore
| | - Yen Nee Tan
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore.,Faculty of Science, Agriculture & Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, United Kingdom.,Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543, Singapore
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Rizvi MA, Hussain Z, Ali F, Amin A, Mir SH, Rydzek G, Jagtap RM, Pardeshi SK, Qadri RA, Ariga K. Bioactive supra decorated thiazolidine-4-carboxylic acid derivatives attenuate cellular oxidative stress by enhancing catalase activity. Phys Chem Chem Phys 2020; 22:7942-7951. [DOI: 10.1039/d0cp00253d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bioactive (2S,4R)-3-(tert-butoxycarbonyl)-2-(2-hydroxyphenyl)thiazolidine-4-carboxylic acid molecules restructure enzymes through complexation, allowing enhancing their activity to protect cells from oxidative stress.
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Affiliation(s)
| | - Zakir Hussain
- Department of Chemistry
- University of Kashmir
- Srinagar
- India
| | - Fasil Ali
- Department of Studies and Research in Biochemistry
- Mangalore University
- India
| | - Asif Amin
- Department of Biotechnology
- University of Kashmir
- Srinagar 190006
- India
| | - Sajjad Husain Mir
- Advanced Materials and Bio Engineering Research Centre (AMBER)
- Ireland
- Department of Chemistry
- Trinity College Dublin
- The University of Dublin
| | - Gaulthier Rydzek
- Institut Charles Gerhardt Montpellier
- UMR 5253
- CNRS
- ENSCM
- Univ. Montpellier
| | - Rohidas M. Jagtap
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | | | - Raies A. Qadri
- Department of Biotechnology
- University of Kashmir
- Srinagar 190006
- India
| | - Katsuhiko Ariga
- World Premier International Center for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
- Graduate School of Frontier Sciences
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21
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Xu M, Zhang T, Lv C, Niu Q, Zong W, Tang J, Liu R. Perfluorodecanoic acid-induced oxidative stress and DNA damage investigated at the cellular and molecular levels. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 185:109699. [PMID: 31561076 DOI: 10.1016/j.ecoenv.2019.109699] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 05/15/2023]
Abstract
Perfluorodecanoic acid (PFDA) has been widely used in production of many daily necessities because of its special nature. Althoughtoxic effects of PFDA to organisms have been reported, there is little research on the genotoxicity induced by oxidative stress of PFDA on the cellular and molecular levels simultaneously. Thus, we investigated the DNA oxidative damage caused by PFDA in mouse hepatocytes. On the cellular level, an increase in ROS content indicated that PFDA caused oxidative stress in mouse hepatocytes. In addition, after PFDA exposure, the comet assay confirmed DNA strand breaks and an increased 8-OHdG content demonstrated DNA oxidative damage. On the molecular level, the microenvironment of aromatic amino acids, skeleton and secondary structure of catalase (CAT) were varied after PFDA exposure and the enzyme activity was reduced because PFDA bound near the heme groups of CAT. Moreover, PFDA was shown to interact with DNA molecule by groove binding. This study suggests that PFDA can cause genotoxicity by inducing oxidative stress both on the cellular and molecular levels.
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Affiliation(s)
- Mengchen Xu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Tong Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Chao Lv
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Qigui Niu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, 250014, PR China
| | - Jingchun Tang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China.
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22
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Huo M, Zhao L, Wang T, Zong W, Liu R. Binding mechanism of maltol with catalase investigated by spectroscopy, molecular docking, and enzyme activity assay. J Mol Recognit 2019; 33:e2822. [PMID: 31692112 DOI: 10.1002/jmr.2822] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 12/26/2022]
Abstract
Maltol is a flavor additive that is widely used in the daily diet of humans, and its biosafety attention is concomitantly increasing. Catalase (CAT) is an antioxidant enzyme to maintain homeostasis in the tissue's environment of human body and protect cells from oxidative damages. The adverse effects of maltol to CAT activity within mouse hepatocytes as well as the structural and functional changes of CAT on molecular level were investigated by multiple spectroscopy techniques, enzyme activity experiments, and molecular docking. Results suggested that when the maltol concentrations reached to 8 × 10-5 mol L-1 , the viability of hepatocytes decreased to 93%, and CAT activity was stimulated by maltol to 111% than the control group after exposure for 24 hours. Changes in CAT activity on molecular level were consistent with those on cellular level. The fluorescence quenching of CAT by maltol was static with the forming of maltol-CAT complex. Moreover, ultraviolet-visible (UV-visible) absorption, synchronous fluorescence, and circular dichroism (CD) spectra reflected that the presence of maltol caused conformational change of CAT and made the CAT molecule skeleton loose and increased α-helix of CAT. Maltol mainly bound with CAT through hydrogen bond, and binding site that is near the heme ring in the enzyme activity center did not interact with its main amino acid residues. This study explores the combination between maltol and CAT, providing references for evaluating health damages caused by maltol.
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Affiliation(s)
- Mengling Huo
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, China
| | - Lining Zhao
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, China
| | - Ting Wang
- Jinan Environment Monitoring Center, Jinan Ecological Environment Bureau of Shandong Province, Jinan, China
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, Jinan, China
| | - Rutao Liu
- School of Environmental Science and Engineering, China-America CRC for Environment & Health, Shandong University, Qingdao, China
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23
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Qian J, Lu B, Chen H, Wang P, Wang C, Li K, Tian X, Jin W, He X, Chen H. Phytotoxicity and oxidative stress of perfluorooctanesulfonate to two riparian plants: Acorus calamus and Phragmites communis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:215-226. [PMID: 31100588 DOI: 10.1016/j.ecoenv.2019.04.078] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/11/2019] [Accepted: 04/26/2019] [Indexed: 06/09/2023]
Abstract
Despite previous efforts and the rapid progress on elucidating the impact of perfluorooctanesulfonate (PFOS) on the environment, its effects on riparian plants, a key component of aquatic ecosystems, are still poorly understood. A 48-day hydroponic experiment was carried out on two typical riparian species (Acorus calamus and Phragmites communis) to examine the toxic effects of PFOS on these plants. The results showed that, at high concentration (more than 10 mg L-1), PFOS could prevent chlorophyll accumulation (reduced by 13.7-22.2% at 10 mg L-1 PFOS and 22.4-30.0% at 50 mg L-1 PFOS for 48 days) and soluble protein synthesis (reduced by 2.3-9.0% at 10 mg L-1 PFOS and 10.6-26.8% at 50 mg L-1 PFOS for 48 days). Contrastingly, less than 1 mg L-1 of PFOS could induce chlorophyll accumulation (increased by 18.6% in A. calamus roots, 11.3% in A. calamus leaves, and 13.6% in P. communis roots at 1 mg L-1 PFOS for 3 days) and soluble protein synthesis (increased by 6.1% in A. calamus roots, 18.4% in A. calamus leaves, 9.7% in P. communis roots, 23.4% in P. communis stems, and 24.0% in P. communis leaves, at 1 mg L-1 PFOS for 6 days). In addition, PFOS led to oxidative stress, as revealed by the elevated concentrations of malonaldehyde and hydrogen peroxide, and reduced the activities of antioxidant enzymes such as superoxide dismutase (reduced by 10.3% in P. communis stems at 50 mg L-1 PFOS for 48 days), catalase (reduced by 20.6-50.3% in test species at 50 mg L-1 PFOS for 48 days), and peroxidase (reduced by 24.9-37.7% in test species at 50 mg L-1 PFOS for 48 days). The biomarkers of both plants changed rapidly in the first half of the experiment (0-24 days) and stabilized in the second half of the experiment (24-48 days). The risk and related factors of PFOS on riparian plants were evaluated by using these biomarkers. Experiments showed that P. communis was more resistant to low concentration (<10 mg L-1) of PFOS than A. calamus.
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Affiliation(s)
- Jin Qian
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China.
| | - Bianhe Lu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Hui Chen
- Nanjing Chu River Management Office, Nanjing, 210011, People's Republic of China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China.
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Kun Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Xin Tian
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Wen Jin
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Xixian He
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
| | - Hao Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China
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24
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Hao M, Liu R. Molecular mechanism of CAT and SOD activity change under MPA-CdTe quantum dots induced oxidative stress in the mouse primary hepatocytes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 220:117104. [PMID: 31141778 DOI: 10.1016/j.saa.2019.05.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 06/09/2023]
Abstract
Quantum dots (QDs) are a unique class of nano-materials that have attractive potentials in biological and biomedical applications, and the concern on their biosafety is concomitantly increasing. The overproduction of reactive oxygen species (ROS) is considered to be one of the reasons that induce the in vitro QDs induced toxic response. However, the exact molecular pathways underlying these effects remain poorly clarified and few studies combine the molecular results with the cellular results to explore the cytotoxic effect of QDs. The aim of the present study was to evaluate the effect of mercaptopropionic acid (MPA) capped CdTe QDs on the structures and functions of two antioxidant enzymes, catalase (CAT) superoxide dismutase (SOD), and then associated with the cytotoxic effects of oxidative stress induced by MPA-CdTe QDs on mouse hepatocytes to define the toxic underlying mechanism. The molecular experiment results showed that the exposure of QDs significantly changed the conformation of CAT and SOD, and leading to the promotion of molecular CAT activity and the inhibition of molecular SOD activity. Meanwhile, the cellular experiment results demonstrated that exposure to QDs changed the activities of CAT and SOD in mouse primary hepatocytes, led to the break of redox balance and resulted in the oxidative stress and cell apoptosis. This study explores the effects of MPA- CdTe QDs to the CAT and SOD molecules and then demonstrates the subsequent QDs toxic effects at a cellular level, revealing their potential risk in biomedical applications.
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Affiliation(s)
- Minglu Hao
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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25
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Zhang X, Li C, Pan J, Liu R, Cao Z. Searching for a bisphenol A substitute: Effects of bisphenols on catalase molecules and human red blood cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 669:112-119. [PMID: 30878919 DOI: 10.1016/j.scitotenv.2019.03.129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 06/09/2023]
Abstract
Some countries are limiting the use of BPA. To meet the challenge of finding a suitable alternative requires safety assessments of the common analogs of BPA. Bisphenol S (BPS), Bisphenol F (BPF) and Bisphenol B (BPB) are increasingly used as substitutes and the aim of this study is to assess their human health implications. By comparing the effects on hemoglobin spectroscopically, the least toxic possibility is using BPB as a substitute for BPA. In this paper, the effects of BPS, BPF and BPB on catalase were compared at the molecular level and the same result was found. To further enhance our understanding of BPB, the impact of BPB on antioxidant defense system, structure (hemolysis rate) and function (ATPase activity) of red blood cell (RBCs) were analyzed at the cellular level. It has been found that low concentrations (below 0.1 μM) of BPB slightly increased the activity of T-AOC (112.7%), GST (118.4%) and T-SOD (131.8%) while high concentrations decreased the activity of T-AOC (90.2%), T-SOD (67.8%), GST (74.7%) and GSH-Px (61.7%). It also has been shown that BPB had little effect on MDA (100%-101.6%) and CAT activity (100%-100.5%) with reduced activity of ATPase (100%-27.7%). In conclusion, BPB may possibly be used as the BPA substitute in the manufacture, and the concentration of BPB should be controlled within 1 μM.
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Affiliation(s)
- Xun Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Chao Li
- Clinical Laboratory of School Hospital, Shandong University, Shandong Province, 91# Shanda North Road, Jinan 250100, PR China
| | - Jie Pan
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
| | - Zhaozhen Cao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong Province, PR China.
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26
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Ali I, Khan SN, Chatzicharalampous C, Bai D, Abu-Soud HM. Catalase prevents myeloperoxidase self-destruction in response to oxidative stress. J Inorg Biochem 2019; 197:110706. [PMID: 31103890 DOI: 10.1016/j.jinorgbio.2019.110706] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/17/2019] [Accepted: 05/02/2019] [Indexed: 12/29/2022]
Abstract
Catalase (CAT) and myeloperoxiase (MPO) are heme-containing enzymes that have attracted attention for their role in the etiology of numerous respiratory disorders such as cystic fibrosis, bronchial asthma, and acute hypoxemic respiratory failure. However, information regarding the interrelationship and competition between the two enzymes, free iron accumulation, and decreased levels of non-enzymatic antioxidants at sites of inflammation is still lacking. Myeloperoxidase catalyzes the generation of hypochlorous acid (HOCl) from the reaction of hydrogen peroxide (H2O2) and chloride (Cl-). Self-generated HOCl has recently been proposed to auto-inhibit MPO through a mechanism that involves MPO heme destruction. Here, we investigate the interplay of MPO, HOCl, and CAT during catalysis, and explore the crucial role of MPO inhibitors and HOCl scavengers in protecting the catalytic site from protein modification of both enzymes against oxidative damage mediated by HOCl. We showed that CAT not only competes with MPO for H2O2 but also scavenges HOCl. The protective role provided by CAT versus the damaging effect provided by HOCl depends in part on the ratio between MPO/CAT and the affinity of the enzymes towards H2O2 versus HOCl. The severity of such damaging effects mainly depends on the ratio of HOCl to enzyme heme content. In addition to its effect in mediating protein modification and aggregation, HOCl oxidatively destroys the catalytic sites of the enzymes, which contain porphyrin rings and iron. Thus, modulation of MPO/CAT activities may be a fundamental feature of catalysis, and functions to down-regulate HOCl synthesis and prevent hemoprotein heme destruction and/or protein modification.
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Affiliation(s)
- Iyad Ali
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Detroit, MI 48201, USA; Department of Biochemistry and Genetics, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus 7, Palestine
| | - Sana N Khan
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Detroit, MI 48201, USA
| | | | - David Bai
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Detroit, MI 48201, USA
| | - Husam M Abu-Soud
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Detroit, MI 48201, USA; Department of Microbiology, Immunology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
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27
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Hao M, Liu R. Conformational and functional effects of MPA-CdTe quantum dots on SOD: Evaluating the mechanism of oxidative stress induced by quantum dots in the mouse nephrocytes. J Mol Recognit 2019; 32:e2783. [PMID: 31044464 DOI: 10.1002/jmr.2783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/01/2019] [Accepted: 03/19/2019] [Indexed: 01/28/2023]
Abstract
The application of quantum dots (QDs) is restricted by the biosafety issue. QDs contribute to the adverse effects of organisms probably because of the ability to induce oxidative stress via changing the activity of antioxidant enzyme, for example, superoxide dismutase (SOD). But the underlying molecular mechanisms still remain unclear. This study investigated the harmful effects of oxidative stress induced by mercaptopropionic acid capped CdTe QDs (MPA-CdTe QDs) on the mouse primary nephrocytes as well as the structure and function of SOD molecule and explored the underlying molecular mechanism. After 24-hour MPA-CdTe QD exposure, the activation level of extracellular regulated protein kinase (ERK) signaling pathway and cysteinyl-directed aspartate-specific proteases (Caspases) significantly increased, which led to the increasing level of reactive oxygen species (ROS) and cell apoptosis; the group pretreated with ROS scavenger N-acetyl-L-cysteine (NAC) significantly reduced the apoptotic cell percentage, indicating that ROS played a critical role in QD-induced cytotoxicity. Further molecular experiments showed that the interacting processes between the MPA-CdTe QDs and SOD were spontaneous which changed the conformation, secondary structure of SOD. The interaction significantly resulted in the tightening of polypeptide chains and the shrinkage of SOD, leading to the inhibition of molecular SOD activity. This study demonstrates the adverse effects of QDs, revealing their potential risk in biomedical applications.
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Affiliation(s)
- Minglu Hao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment and Health, Qingdao, China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment and Health, Qingdao, China
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28
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Amanullah S, Singha A, Dey A. Tailor made iron porphyrins for investigating axial ligand and distal environment contributions to electronic structure and reactivity. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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29
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Zhang J, Yue X, Luo H, Jiang W, Mei Y, Ai L, Gao G, Wu Y, Yang H, An J, Ding S, Yang X, Sun B, Luo W, He R, Jia J, Lyu J, Tong Z. Illumination with 630 nm Red Light Reduces Oxidative Stress and Restores Memory by Photo-Activating Catalase and Formaldehyde Dehydrogenase in SAMP8 Mice. Antioxid Redox Signal 2019; 30:1432-1449. [PMID: 29869529 DOI: 10.1089/ars.2018.7520] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AIMS Pharmacological treatments for Alzheimer's disease (AD) have not resulted in desirable clinical efficacy over 100 years. Hydrogen peroxide (H2O2), a reactive and the most stable compound of reactive oxygen species, contributes to oxidative stress in AD patients. In this study, we designed a medical device to emit red light at 630 ± 15 nm from a light-emitting diode (LED-RL) and investigated whether the LED-RL reduces brain H2O2 levels and improves memory in senescence-accelerated prone 8 mouse (SAMP8) model of age-related dementia. RESULTS We found that age-associated H2O2 directly inhibited formaldehyde dehydrogenase (FDH). FDH inactivity and semicarbazide-sensitive amine oxidase (SSAO) disorder resulted in endogenous formaldehyde (FA) accumulation. Unexpectedly, excess FA, in turn, caused acetylcholine (Ach) deficiency by inhibiting choline acetyltransferase (ChAT) activity in vitro and in vivo. Interestingly, the 630 nm red light can penetrate the skull and the abdomen with light penetration rates of ∼49% and ∼43%, respectively. Illumination with LED-RL markedly activated both catalase and FDH in the brains, cultured cells, and purified protein solutions, all reduced brain H2O2 and FA levels and restored brain Ach contents. Consequently, LED-RL not only prevented early-stage memory decline but also rescued late-stage memory deficits in SAMP8 mice. INNOVATION We developed a phototherapeutic device with 630 nm red light, and this LED-RL reduced brain H2O2 levels and reversed age-related memory disorders. CONCLUSIONS The phototherapy of LED-RL has low photo toxicity and high rate of tissue penetration and noninvasively reverses aging-associated cognitive decline. This finding opens a promising opportunity to translate LED-RL into clinical treatment for patients with dementia. Antioxid. Redox Signal. 00, 000-000.
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Affiliation(s)
- Jingnan Zhang
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
- 2 Center for Cognitive Disorders , Beijing Geriatric Hospital, Beijing, China
| | - Xiangpei Yue
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
| | - Hongjun Luo
- 3 Central Laboratory, Shantou University Medical College , Guangdong, China
| | - Wenjing Jiang
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
- 2 Center for Cognitive Disorders , Beijing Geriatric Hospital, Beijing, China
| | - Yufei Mei
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
- 4 School of Basic Medical Sciences, Zhejiang University , Hangzhou, China
| | - Li Ai
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
| | - Ge Gao
- 5 Department of Neurobiology, School of Basic Medical Sciences , Capital Medical University, Beijing, China
| | - Yan Wu
- 6 Department of Anatomy, School of Basic Medical Sciences , Capital Medical University, Beijing, China
| | - Hui Yang
- 5 Department of Neurobiology, School of Basic Medical Sciences , Capital Medical University, Beijing, China
| | - Jieran An
- 7 Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University , Wuhan, China
| | - Shumao Ding
- 7 Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University , Wuhan, China
| | - Xu Yang
- 7 Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University , Wuhan, China
| | - Binggui Sun
- 4 School of Basic Medical Sciences, Zhejiang University , Hangzhou, China
| | - Wenhong Luo
- 3 Central Laboratory, Shantou University Medical College , Guangdong, China
| | - Rongqiao He
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
- 8 State Key Laboratory of Brain & Cognitive Science, Institute of Biophysics, CAS Key Laboratory of Mental Health, University of Chinese Academy of Science, Beijing, China
| | - Jianping Jia
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
- 9 Department of Neurology, Xuanwu Hospital of the Capital Medical University , Beijing, China
| | - Jihui Lyu
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
- 2 Center for Cognitive Disorders , Beijing Geriatric Hospital, Beijing, China
| | - Zhiqian Tong
- 1 Laboratory of Alzheimer's Optoelectric Therapy, Alzheimer's Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University , Beijing, China
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30
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Zhang B, Li M, Wang Q, Zhai A. Exploring adverse effects of puerarin on catalase by multiple spectroscopic investigations and docking studies in vitro. J Biochem Mol Toxicol 2019; 33:e22296. [PMID: 30672062 DOI: 10.1002/jbt.22296] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 12/26/2018] [Accepted: 01/04/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Bai Zhang
- Department of PharmacyThe Fifth People's Hospital of Jinan China
| | - Ming Li
- Department of Pharmacy, Jinan Vocational College of Nursing, Jinan China
| | - Qi Wang
- Department of PharmacyThe Fifth People's Hospital of Jinan China
| | - Aihua Zhai
- Department of PharmacyThe Fifth People's Hospital of Jinan China
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Hu S, Yuan D, Liu Y, Zhao L, Guo H, Niu Q, Zong W, Liu R. The toxic effects of alizarin red S on catalase at the molecular level. RSC Adv 2019; 9:33368-33377. [PMID: 35529134 PMCID: PMC9073274 DOI: 10.1039/c9ra02986a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 10/03/2019] [Indexed: 11/21/2022] Open
Abstract
Alizarin red S (ARS) is a widespread mordant dye derived from alizarin. However, it was reported to be mutagenic and carcinogenic probably because it could induce oxidative damages in organisms. Catalase (CAT) is an important antioxidant enzyme defensing oxidative damages induced by xenobiotics. The underlying mechanisms of ARS interacting with CAT have not been clarified yet. This study is conducted to characterize the functional and conformational changes on CAT by ARS and the binding details to further investigate their interaction mechanisms. Under exposure of ARS at 5 μM, CAT activity was significantly decreased to 76.2%. Inhibition of CAT probably resulted in promotion of intracellular oxidative stress and pro-oxidant property of ARS. The interaction between ARS and CAT was proved to be spontaneous and exothermic. However, limited structural changes were observed according to spectroscopic results. Results showed that ARS prefers to bind with residues buried in the active site and could alter the activity of CAT, which were agree with the molecular docking results. This work proves the adverse effects of ARS on CAT mainly at molecular level and further highlights its potential risks to heath. Alizarin red S is confirmed to be toxic to catalase at molecular level attributing to the structural and functional changes of catalase.![]()
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Affiliation(s)
- Shimeng Hu
- School of Environmental Science and Engineering
- Shandong University
- America CRC for Environment & Health
- Shandong Province
- Qingdao
| | - Dong Yuan
- Department of Chemistry and Chemical Engineering
- Qilu Normal University
- Jinan 250013
- P. R. China
| | - Yang Liu
- Department of Chemistry and Chemical Engineering
- Qilu Normal University
- Jinan 250013
- P. R. China
| | - Lining Zhao
- School of Environmental Science and Engineering
- Shandong University
- America CRC for Environment & Health
- Shandong Province
- Qingdao
| | - Hongli Guo
- School of Environmental Science and Engineering
- Shandong University
- America CRC for Environment & Health
- Shandong Province
- Qingdao
| | - Qigui Niu
- School of Environmental Science and Engineering
- Shandong University
- America CRC for Environment & Health
- Shandong Province
- Qingdao
| | - Wansong Zong
- College of Population, Resources and Environment
- Shandong Normal University
- Jinan 250014
- P. R. China
| | - Rutao Liu
- School of Environmental Science and Engineering
- Shandong University
- America CRC for Environment & Health
- Shandong Province
- Qingdao
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Wang J, Jia R, Zheng X, Sun Z, Liu R, Zong W. Drinking water disinfection byproduct iodoacetic acid interacts with catalase and induces cytotoxicity in mouse primary hepatocytes. CHEMOSPHERE 2018; 210:824-830. [PMID: 30048934 DOI: 10.1016/j.chemosphere.2018.07.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 06/08/2023]
Abstract
Disinfection byproducts (DBPs) are produced during the disinfection of drinking water and pose a hazard to human health. As a typical type of DBPs, iodoacetic acid (IAA) exhibits prominent cytotoxicity in mammalian cell systems which links with oxidative stress. However, little is known about the relationship of catalase (CAT) with the cytotoxicity of IAA and the adverse effects of IAA to CAT. This study investigated the effects of IAA on the cell viability and CAT activity in the mouse primary hepatocytes. It was shown that IAA exposure induced the loss of cell viability and the increase of intracellular CAT activity. Intracellular CAT activity significantly increased due to the stimulation of CAT production under IAA exposure. The molecular CAT activity was inhibited due to the direct interaction of IAA with HIS 74 and TYR 357 around the active sites of CAT. IAA binds to CAT with (4.05 ± 1.98) sites via van der Waals and hydrogen bonding interactions, resulting in the loosening of protein skeletons and the change of protein size.
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Affiliation(s)
- Jing Wang
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai 264005, PR China.
| | - Rui Jia
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai 264005, PR China
| | - Xiaolin Zheng
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai 264005, PR China
| | - Zhiqiang Sun
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda South Road, Jinan, 250100, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda South Road, Jinan, 250100, PR China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, 250014, PR China
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33
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Hao X, Zhang L, Zheng X, Zong W, Liu C. Molecular mechanism of composite nanoparticles TiO 2 /WO 3 /GO-induced activity changes of catalase and superoxide dismutase. Chem Biol Interact 2018; 292:30-36. [PMID: 29935966 DOI: 10.1016/j.cbi.2018.06.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 03/25/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
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Xu M, Cui Z, Zhao L, Hu S, Zong W, Liu R. Characterizing the binding interactions of PFOA and PFOS with catalase at the molecular level. CHEMOSPHERE 2018; 203:360-367. [PMID: 29627602 DOI: 10.1016/j.chemosphere.2018.03.200] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/29/2018] [Accepted: 03/31/2018] [Indexed: 06/08/2023]
Abstract
Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) have effects on human health by inducing oxidative stress and catalase (CAT) is a vital enzyme involved in protection against oxidative damage. The interactions of PFOA and PFOS with CAT were investigated by using biophysical methods including spectroscopic techniques, molecular docking and enzyme activity measurements. UV-visible, circular dichroism (CD) and resonance light scattering (RLS) spectroscopy results showed that the structure and conformation of CAT were changed by PFOA and PFOS. PFOA could loosen and unfold the skeleton of CAT but PFOS affected the microenvironment around the aromatic amino acid residues and heme groups. Both PFOA and PFOS altered the secondary structure of CAT by decreasing α-helix and increasing β-sheet content. The size of CAT was smaller and CAT became dispersed when it was bound by perfluorinated compounds (PFCs). Furthermore, enzyme activity test showed that PFOS decreased the activity of CAT because the binding site of PFOS was close to the active center of CAT, but PFOA had little effect on the activity because PFOA bound at the surface of the enzyme. These results indicated that PFCs could damage the structures and conformations of CAT but the changes were not always related to the activity and function of CAT.
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Affiliation(s)
- Mengchen Xu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda Nanlu, Jinan 250100, PR China
| | - Zhaohao Cui
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda Nanlu, Jinan 250100, PR China
| | - Lining Zhao
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda Nanlu, Jinan 250100, PR China
| | - Shimeng Hu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda Nanlu, Jinan 250100, PR China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan 250014, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 27# Shanda Nanlu, Jinan 250100, PR China.
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35
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Sepasi Tehrani H, Moosavi-Movahedi AA. Catalase and its mysteries. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2018. [PMID: 29530789 DOI: 10.1016/j.pbiomolbio.2018.03.001] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalase is one of the firsts in every realm of biological sciences. At the same time it also has a number of unusual features. It has one of the highest turnover numbers of all enzymes. It is essential for neutralizing the noxious hydrogen peroxide both in the nature and the various industries such as dairy, textile and pharmaceutics. It also has the merit of being one of the first protein crystals to be isolated. Ironically its three-dimensional structure was discerned some forty years later. However through the times this senile enzyme has continued to intrigue the scientists by surprising facts and phenomena, such as peculiar interweaving of subunits and remarkable thermal stability. It is also known for suicide inactivation by its own substrate. Catalase is known to be implicated in various medical scenarios and its levels have served as a marker in that capacity. It has even been incorporated into several pharmaceuticals. This review strives to clarify these perspectives. It also draws attention to the biophysical contributions offered by thermodynamics and kinetics in these discoveries. The ultimate aim of this review, however, is to state that the venerable catalase will continue to bewilder us with its mysteries well into the twenty-first century.
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Affiliation(s)
- Hessam Sepasi Tehrani
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran.
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36
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Wang J, Jia R, Wang J, Sun Z, Wu Z, Liu R, Zong W. Investigation on the interaction of catalase with sodium lauryl sulfonate and the underlying mechanisms. J Biochem Mol Toxicol 2017; 32. [DOI: 10.1002/jbt.22025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 11/29/2017] [Accepted: 12/09/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jing Wang
- School of Environmental and Material Engineering; Yantai University; Yantai 264005 People's Republic of China
| | - Rui Jia
- School of Environmental and Material Engineering; Yantai University; Yantai 264005 People's Republic of China
| | - Jiaxi Wang
- Research Center of Hydrobiology; Jinan University; Guangzhou 510632 People's Republic of China
| | - Zhiqiang Sun
- School of Environmental Science and Engineering, China - America CRC for Environment & Health; Shandong University; Shandong Province Jinan 250100 People's Republic of China
| | - Zitao Wu
- School of Environmental and Material Engineering; Yantai University; Yantai 264005 People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, China - America CRC for Environment & Health; Shandong University; Shandong Province Jinan 250100 People's Republic of China
| | - Wansong Zong
- College of Population, Resources and Environment; Shandong Normal University; Jinan 250014 People's Republic of China
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37
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Khan MV, Zaman M, Chandel TI, Siddiqui MK, Ajmal MR, Abdelhameed AS, Khan RH. Cationic surfactant mediated fibrillogenesis in bovine liver catalase: a biophysical approach. J Biomol Struct Dyn 2017; 36:2543-2557. [DOI: 10.1080/07391102.2017.1363085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mohsin Vahid Khan
- Molecular Biophysics and Biophysical Chemistry Group, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Masihuz Zaman
- Molecular Biophysics and Biophysical Chemistry Group, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Tajalli Ilm Chandel
- Molecular Biophysics and Biophysical Chemistry Group, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Khursheed Siddiqui
- Molecular Biophysics and Biophysical Chemistry Group, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Mohd. Rehan Ajmal
- Molecular Biophysics and Biophysical Chemistry Group, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Ali Saber Abdelhameed
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rizwan Hasan Khan
- Molecular Biophysics and Biophysical Chemistry Group, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
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Majumder D, Das A, Saha C. Catalase inhibition an anti cancer property of flavonoids: A kinetic and structural evaluation. Int J Biol Macromol 2017; 104:929-935. [PMID: 28663152 DOI: 10.1016/j.ijbiomac.2017.06.100] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/23/2017] [Accepted: 06/24/2017] [Indexed: 11/15/2022]
Abstract
Flavonoids are dietary polyphenols that present abundantly in fruits and vegetables. Flavonoids have inhibitory effects on enzymes and catalase is one among them. Catalase is a common enzyme ubiquitously found in all living organisms exposed to oxygen. It catalyzes the decomposition of hydrogen peroxide to water and oxygen (2H2O2→2H2O+O2). Inhibition of pure and cellular catalase from K562 cells by flavonoids was similar and exhibited the following efficacy; Myrecetin>Quercetin>Kaempferol and Quercetin>Luteolin>Apigenin demonstrating structure activity relationship. Circular Dichroism (CD) spectra have shown distinct loss in α-helical structure of the catalase on interaction with the flavonoids. All flavonoids inhibited the catalase activity by uncompetitive mechanism. The Km and Vmax values of pure catalase were observed to be 294mM-1 and 0.222mM-1s-1 respectively and on inhibition with myrecetin the values decreased to a minimum of 23mM-1 and 0.014mM-1s-1 respectively. Inhibition of catalase will directly results in increased production of Reactive Oxygen Species (ROS) and pro-oxidant property of flavonoids. This inhibition was reversed in presence of Cu2+ ions because of the chelating affect of flavonoids.
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Affiliation(s)
- Debashis Majumder
- School of Biotechnology, Maulana Abul Kalam Institute of Technology, BF142, Salt lake, Kolkata 700064, India
| | - Asmita Das
- School of Biotechnology, Maulana Abul Kalam Institute of Technology, BF142, Salt lake, Kolkata 700064, India
| | - Chabita Saha
- School of Biotechnology, Maulana Abul Kalam Institute of Technology, BF142, Salt lake, Kolkata 700064, India.
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39
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Li T, Hao M, Pan J, Zong W, Liu R. Comparison of the toxicity of the dyes Sudan II and Sudan IV to catalase. J Biochem Mol Toxicol 2017; 31. [DOI: 10.1002/jbt.21943] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 05/23/2017] [Accepted: 05/24/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Tong Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Minglu Hao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Jie Pan
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao 266000 People's Republic of China
| | - Wansong Zong
- College of Population, Resources and Environment; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health; Jinan 250100 People's Republic of China
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Wang J, Wang J, Zhang L, Liu R, Zong W. Response of Catalase of the Mouse Primary Hepatocytes to Sodium Dodecylbenzenesulfonate and the Underlying Molecular Mechanisms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:3039-3047. [PMID: 28340295 DOI: 10.1021/acs.jafc.7b00291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study investigated the adverse effects of sodium dodecylbenzenesulfonates (SDBS) on mouse primary hepatocytes by conducting cell viability, intracellular oxidative stress level, and catalase (CAT) activity assays. It was shown that SDBS altered CAT activities, triggered oxidative stress, and thus exhibited cytotoxicity to the hepatocytes. Both the stimulation of intracellular CAT production and the inhibition of molecular CAT activity contributed to intracellular CAT activity change. Molecular mechanisms underlying CAT activity inhibition and structural changes were explored by isothermal titration calorimetry, multispectroscopy, and molecular docking studies. SDBS binds to CAT with 8.81 ± 0.751 sites via electrostatic forces, resulting in structural changes with α-helix significantly decreasing to 9.7 ± 1.2%. SDBS could interact with HIS 74, ASN 147, and TYR 357 around the active sites as well as TRP 185, ASP 127, and GLN 167 within the substrate channel and therefore might result in the inhibition of molecular CAT activity.
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Affiliation(s)
- Jing Wang
- School of Environmental and Material Engineering, Yantai University , 30 Qingquan Road, Yantai 264005, People's Republic of China
| | - Jiaxi Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health , 27 Shanda South Road, Jinan, Shandong Province 250100, People's Republic of China
| | - Lu Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health , 27 Shanda South Road, Jinan, Shandong Province 250100, People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health , 27 Shanda South Road, Jinan, Shandong Province 250100, People's Republic of China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University , 88 East Wenhua Road, Jinan 250014, People's Republic of China
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41
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Sharma A, Sharma D, Verma SK. Proteome wide identification of iron binding proteins of Xanthomonas translucens pv. undulosa: focus on secretory virulent proteins. Biometals 2017; 30:127-141. [DOI: 10.1007/s10534-017-9991-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 01/08/2017] [Indexed: 12/19/2022]
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Dojun N, Sekine Y, Ishimori K, Uchida T. Iron chelators inhibit the heme-degradation reaction by HutZ from Vibrio cholerae. Dalton Trans 2017; 46:5147-5150. [DOI: 10.1039/c7dt00121e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The heme-degradation reaction by HutZ fromVibrio choleraeis inhibited by the iron chelators.
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Affiliation(s)
- Nobuhiko Dojun
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Yukari Sekine
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Koichiro Ishimori
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
- Department of Chemistry
| | - Takeshi Uchida
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
- Department of Chemistry
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Zhang R, Liu R, Zong W. Bisphenol S Interacts with Catalase and Induces Oxidative Stress in Mouse Liver and Renal Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:6630-40. [PMID: 27508457 DOI: 10.1021/acs.jafc.6b02656] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Bisphenol S (BPS) is present in multitudinous consumer products and detected in both food and water. It also has been a main substitute for bisphenol A (BPA) in the food-packaging industry. Yet, the toxicity of BPS is not fully understood. The present study of the toxicity of BPS was divided into two parts. First, oxidative stress, cell viability, apoptosis level, and catalase (CAT) activity in mouse hepatocytes and renal cells were investigated after BPS exposure. After 12 h of incubation with BPS, all of these parameters of hepatocytes and renal cells changed by >15% as the concentration of BPS ranged from 0.1 to 1 mM. Second, the direct interaction between BPS and CAT on the molecule level was investigated by multiple spectral methods and molecular docking investigations. BPS changed the structure and the activity of CAT through binding to the Gly 117 residue on the substrate channel of the enzyme. The main binding forces were hydrogen bond and hydrophobic force.
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Affiliation(s)
- Rui Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province , 27# Shanda South Road, Jinan 250100, People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province , 27# Shanda South Road, Jinan 250100, People's Republic of China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University , 88# East Wenhua Road, Jinan 250014, People's Republic of China
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45
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Yonekura K, Maki-Yonekura S. Refinement of cryo-EM structures using scattering factors of charged atoms. J Appl Crystallogr 2016. [DOI: 10.1107/s1600576716011274] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
This paper reports a suitable treatment of electron scattering factors of charged atoms for refinement of atomic models against cryo-electron microscopy (cryo-EM) maps. The ScatCurve package developed here supports various curve models for parameterization of scattering factors and the parameter tables can be implemented in major refinement programs in structural biology. Partial charge values of charged amino acids in crystal structures were changed in small steps for refinement of the atomic models against electron diffraction data from three-dimensional crystals. By exploring a range of partial charges, the authors found the electrostatic setting that produces atomic models with improved statistics and better reflects experimental data. Structure refinement for single-particle analysis also benefits from the more accurate analysis and the programs could find wide use for model refinement against cryo-EM maps.
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46
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Wang J, Wang J, Xu C, Liu R, Chen Y. Molecular mechanism of catalase activity change under sodium dodecyl sulfate-induced oxidative stress in the mouse primary hepatocytes. JOURNAL OF HAZARDOUS MATERIALS 2016; 307:173-183. [PMID: 26780704 DOI: 10.1016/j.jhazmat.2015.11.060] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 11/20/2015] [Accepted: 11/23/2015] [Indexed: 06/05/2023]
Abstract
Sodium dodecyl sulfate (SDS) contributes to adverse effects of organisms probably because of its ability to induce oxidative stress via changing the activity of antioxidant enzyme catalase (CAT). But the underlying molecular mechanisms still remain unclear. This study characterized the harmful effects of SDS-induced oxidative stress on the mouse primary hepatocytes as well as the structure and function of CAT molecule and investigated the underlying molecular mechanism. After 12h SDS (0.1μM to 0.2mM) exposure, no significant change was observed in CAT activity of the hepatocytes. After 0.5 and 0.8mM SDS exposure, the state of oxidative stress stimulated CAT production in the hepatocytes. The inhibition of CAT activity induced by directly interacting with SDS was unable to catch the synthesis of CAT and therefore resulted in the increased activity and elevated ROS level. Further molecular experiments showed that SDS prefers to bind to the interface with no direct effect on the active site and the structure of heme groups of CAT molecule. When the sites in the interface is saturated, SDS interacts with VAL 73, HIS 74, ASN 147 and PHE 152, the key residues of the enzyme activity, and leads to the decrease of CAT activity.
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Affiliation(s)
- Jing Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 27# Shanda South Road, Jinan 250100, PR China
| | - Jiaxi Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 27# Shanda South Road, Jinan 250100, PR China
| | - Chi Xu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 27# Shanda South Road, Jinan 250100, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 27# Shanda South Road, Jinan 250100, PR China.
| | - Yadong Chen
- Laboratory of Molecular Design and Drug Discovery, School of Basic Science, China Pharmaceutical University, 24 Tongjiaxiang,Nanjing 210009, PR China
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47
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Scheckhuber CQ. Arg354 in the catalytic centre of bovine liver catalase is protected from methylglyoxal-mediated glycation. BMC Res Notes 2015; 8:830. [PMID: 26715035 PMCID: PMC4696219 DOI: 10.1186/s13104-015-1793-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 12/09/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In addition to controlled post-translational modifications proteins can be modified with highly reactive compounds. Usually this leads to a compromised functionality of the protein. Methylglyoxal is one of the most common agents that attack arginine residues. Methylglyoxal is also regarded as a pro-oxidant that affects cellular redox homeostasis by contributing to the formation of reactive oxygen species. Antioxidant enzymes like catalase are required to protect the cell from oxidative damage. These enzymes are also targets for methylglyoxal-mediated modification which could severely affect their catalytic activity in breaking down reactive oxygen species to less reactive or inert compounds. RESULTS Here, bovine liver catalase was incubated with high levels of methylglyoxal to induce its glycation. This treatment did not lead to a pronounced reduction of enzymatic activity. Subsequently methylglyoxal-mediated arginine modifications (hydroimidazolone and dihydroxyimidazolidine) were quantitatively analysed by sensitive nano high performance liquid chromatography/electron spray ionisation/tandem mass spectrometry. Whereas several arginine residues displayed low to moderate levels of glycation (e.g., Arg93, Arg365, Arg444) Arg354 in the active centre of catalase was never found to be modified. CONCLUSIONS Bovine liver catalase is able to tolerate very high levels of the modifying α-oxoaldehyde methylglyoxal so that its essential enzymatic function is not impaired.
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Affiliation(s)
- Christian Q Scheckhuber
- Senckenberg Research Institute, LOEWE Excellence Cluster for Integrative Fungal Research (IPF), Georg-Voigt-Str. 14-16, 60325, Frankfurt, Germany.
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Zuo L, Zhou T, Pannell BK, Ziegler AC, Best TM. Biological and physiological role of reactive oxygen species--the good, the bad and the ugly. Acta Physiol (Oxf) 2015; 214:329-48. [PMID: 25912260 DOI: 10.1111/apha.12515] [Citation(s) in RCA: 281] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/27/2015] [Accepted: 04/21/2015] [Indexed: 12/16/2022]
Abstract
Reactive oxygen species (ROS) are chemically reactive molecules that are naturally produced within biological systems. Research has focused extensively on revealing the multi-faceted and complex roles that ROS play in living tissues. In regard to the good side of ROS, this article explores the effects of ROS on signalling, immune response and other physiological responses. To review the potentially bad side of ROS, we explain the consequences of high concentrations of molecules that lead to the disruption of redox homeostasis, which induces oxidative stress damaging intracellular components. The ugly effects of ROS can be observed in devastating cardiac, pulmonary, neurodegenerative and other disorders. Furthermore, this article covers the regulatory enzymes that mitigate the effects of ROS. Glutathione peroxidase, superoxide dismutase and catalase are discussed in particular detail. The current understanding of ROS is incomplete, and it is imperative that future research be performed to understand the implications of ROS in various therapeutic interventions.
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Affiliation(s)
- L. Zuo
- Radiologic Sciences and Respiratory Therapy Division; School of Health and Rehabilitation Sciences; The Ohio State University College of Medicine; Columbus OH USA
- Biophysics Graduate Program; The Ohio State University; Columbus OH USA
| | - T. Zhou
- Radiologic Sciences and Respiratory Therapy Division; School of Health and Rehabilitation Sciences; The Ohio State University College of Medicine; Columbus OH USA
- Biophysics Graduate Program; The Ohio State University; Columbus OH USA
| | - B. K. Pannell
- Radiologic Sciences and Respiratory Therapy Division; School of Health and Rehabilitation Sciences; The Ohio State University College of Medicine; Columbus OH USA
| | - A. C. Ziegler
- Radiologic Sciences and Respiratory Therapy Division; School of Health and Rehabilitation Sciences; The Ohio State University College of Medicine; Columbus OH USA
| | - T. M. Best
- Division of Sports Medicine; Department of Family Medicine; Sports Health & Performance Institute; The Ohio State University Wexner Medical Center; Columbus OH USA
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Chakravarti R, Gupta K, Majors A, Ruple L, Aronica M, Stuehr DJ. Novel insights in mammalian catalase heme maturation: effect of NO and thioredoxin-1. Free Radic Biol Med 2015; 82:105-13. [PMID: 25659933 PMCID: PMC5030845 DOI: 10.1016/j.freeradbiomed.2015.01.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 01/07/2015] [Accepted: 01/13/2015] [Indexed: 12/29/2022]
Abstract
Catalase is a tetrameric heme-containing enzyme with essential antioxidant functions in biology. Multiple factors including nitric oxide (NO) have been shown to attenuate its activity. However, the possible impact of NO in relation to the maturation of active catalase, including its heme acquisition and tetramer formation, has not been investigated. We found that NO attenuates heme insertion into catalase in both short-term and long-term incubations. The NO inhibition in catalase heme incorporation was associated with defective oligomerization of catalase, such that inactive catalase monomers and dimers accumulated in place of the mature tetrameric enzyme. We also found that GAPDH plays a key role in mediating these NO effects on the structure and activity of catalase. Moreover, the NO sensitivity of catalase maturation could be altered up or down by manipulating the cellular expression level or activity of thioredoxin-1, a known protein-SNO denitrosylase enzyme. In a mouse model of allergic inflammatory asthma, we found that lungs from allergen-challenged mice contained a greater percentage of dimeric catalase relative to tetrameric catalase in the unchallenged control, suggesting that the mechanisms described here are in play in the allergic asthma model. Together, our study shows how maturation of active catalase can be influenced by NO, S-nitrosylated GAPDH, and thioredoxin-1, and how maturation may become compromised in inflammatory conditions such as asthma.
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Affiliation(s)
- Ritu Chakravarti
- Department of Pathobiology, Lerner Research Institute, 9500 Euclid Avenue, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Karishma Gupta
- School of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Alana Majors
- Department of Pathobiology, Lerner Research Institute, 9500 Euclid Avenue, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Lisa Ruple
- Department of Pathobiology, Lerner Research Institute, 9500 Euclid Avenue, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Mark Aronica
- Department of Pathobiology, Lerner Research Institute, 9500 Euclid Avenue, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Dennis J Stuehr
- Department of Pathobiology, Lerner Research Institute, 9500 Euclid Avenue, Cleveland Clinic, Cleveland, OH 44195, USA.
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Wang J, Zhang H, Zhang T, Zhang R, Liu R, Chen Y. Molecular mechanism on cadmium-induced activity changes of catalase and superoxide dismutase. Int J Biol Macromol 2015; 77:59-67. [PMID: 25795390 DOI: 10.1016/j.ijbiomac.2015.02.037] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 08/23/2014] [Accepted: 02/23/2015] [Indexed: 01/04/2023]
Abstract
Cadmium contributes to adverse effects of organisms probably because of its ability to induce oxidative stress via alterations in activities of antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD), but their molecular mechanisms remain unclear. We investigated the molecular mechanism of CAT and SOD response under Cd-induced oxidative stress in the liver of zebrafish. The enzyme activity changes observed in vitro were consistent with those seen in vivo, indicating the direct interaction of CAT and SOD with Cd contributes to their activity change in vivo. Further experiments utilizing multiple spectroscopic methods, isothermal titration calorimetry and a molecular docking study were performed to explore the mechanism of molecular interaction of CAT and SOD with Cd. Different interaction patterns were found that resulted in misfolding and changed the enzyme activities. Taken together, we suggest the misfolding of CAT and SOD contributes to their activity change under Cd-induced oxidative stress in vivo.
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Affiliation(s)
- Jing Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 27# Shanda South Road, Jinan 250100, Shandong Province, PR China
| | - Hao Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 27# Shanda South Road, Jinan 250100, Shandong Province, PR China
| | - Tong Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 27# Shanda South Road, Jinan 250100, Shandong Province, PR China
| | - Rui Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 27# Shanda South Road, Jinan 250100, Shandong Province, PR China
| | - Rutao Liu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 27# Shanda South Road, Jinan 250100, Shandong Province, PR China.
| | - Yadong Chen
- Laboratory of Molecular Design and Drug Discovery, School of Basic Science, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China
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