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Yin H, Hong G, Li L, Zhang X, Kong Y, Sun Z, Li J, Chen J, He Y. miR156/SPL9 Regulates Reactive Oxygen Species Accumulation and Immune Response in Arabidopsis thaliana. PHYTOPATHOLOGY 2019; 109:632-642. [PMID: 30526361 DOI: 10.1094/phyto-08-18-0306-r] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The functions of microRNA156 (miR156) and its targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) transcription factor genes in plant development have been widely investigated. However, the role of the miR156/SPLs regulatory network in plant immune systems remains obscure. Here, we found that the accumulation of reactive oxygen species (ROS) and the transcripts of basal salicylic acid (SA) signaling pathway genes were lower in Arabidopsis Pro35S:MIR156 seedlings (miR156 overexpression mutants) but higher in Pro35S:MIM156 (miR156 repression mutants) and ProSPL9:rSPL9 (SPL9 overexpression mutants) seedlings compared with wild-type Col-0 plants (WT). As a result, Pro35S:MIR156 mutants induced greater susceptibility to Pseudomonas syringae pv. tomato DC3000 following syringe infiltration than WT, while Pro35S:MIM156 and ProSPL9:rSPL9 mutants showed enhanced resistance. In addition, foliar H2O2 application resulted in activation of SA-mediated defense response and ablation of miR156-induced susceptibility to P. syringae pv. tomato DC3000 infection. Collectively, our results provide new insights into the function of the miR156/SPL network in Arabidopsis immune response by regulating ROS accumulation and activating the SA signaling pathway.
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Affiliation(s)
- Hongbiao Yin
- 1 College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
| | - Gaojie Hong
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
| | - Linying Li
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
- 3 School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Xueying Zhang
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
- 4 Department of Tea Science, Zhejiang University, Hangzhou 310058, China; and
| | - Yaze Kong
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
- 5 College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China; and
| | - Zongtao Sun
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
- 6 Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Junmin Li
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
- 6 Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jianping Chen
- 1 College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
- 6 Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Yuqing He
- 2 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Ministry of Agriculture Key Laboratory of Biotechnology in Plant Protection, Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 198 Shiqiao Road, Hangzhou 310021, China
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152
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Spiers JG, Chen HJC, Bourgognon JM, Steinert JR. Dysregulation of stress systems and nitric oxide signaling underlies neuronal dysfunction in Alzheimer's disease. Free Radic Biol Med 2019; 134:468-483. [PMID: 30716433 DOI: 10.1016/j.freeradbiomed.2019.01.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/19/2018] [Accepted: 01/21/2019] [Indexed: 12/12/2022]
Abstract
Stress is a multimodal response involving the coordination of numerous body systems in order to maximize the chance of survival. However, long term activation of the stress response results in neuronal oxidative stress via reactive oxygen and nitrogen species generation, contributing to the development of depression. Stress-induced depression shares a high comorbidity with other neurological conditions including Alzheimer's disease (AD) and dementia, often appearing as one of the earliest observable symptoms in these diseases. Furthermore, stress and/or depression appear to exacerbate cognitive impairment in the context of AD associated with dysfunctional catecholaminergic signaling. Given there are a number of homologous pathways involved in the pathophysiology of depression and AD, this article will highlight the mechanisms by which stress-induced perturbations in oxidative stress, and particularly NO signaling, contribute to neurodegeneration.
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Affiliation(s)
- Jereme G Spiers
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia.
| | - Hsiao-Jou Cortina Chen
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | | | - Joern R Steinert
- Department of Neuroscience, Psychology and Behavior, University of Leicester, Leicester, LE1 9HN, United Kingdom.
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153
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Verma D, Lakhanpal N, Singh K. Genome-wide identification and characterization of abiotic-stress responsive SOD (superoxide dismutase) gene family in Brassica juncea and B. rapa. BMC Genomics 2019; 20:227. [PMID: 30890148 PMCID: PMC6425617 DOI: 10.1186/s12864-019-5593-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/11/2019] [Indexed: 12/20/2022] Open
Abstract
Background Abiotic stresses like drought, heat, cold and salinity cause major productivity loss in the rapeseed-mustard crops (Brassica). Major efforts have been made in the past to identify genes that provide resistance against such stresses. Superoxide dismutase (SOD) proteins, member of the metallo-enzyme family play vital role in protecting plants against abiotic stresses. In the present study, genome-wide analysis of abiotic stress responsive SOD gene family has been done in B. juncea and B. rapa. Results A total of 29 and 18 SOD genes were identified in B. juncea and B. rapa respectively and chromosome location mapping indicated their wide distribution across genome. On the basis of domain composition, the SODs were phylogenetically classified into sub-groups which was also substantiated by the gene structure and sub-cellular locations of SOD proteins. Functional annotation of SODs was also done by Gene Ontology (GO) mapping and the result was corroborated by the identified cis-regulatory elements in the promoter region of SOD genes. Based on FPKM analysis of SRA data available for drought, heat and salt stress, we identified 14 and 10 abiotic stress responsive SOD genes in B. rapa and B. juncea respectively. The differential expression analysis under drought and heat stress of identified abiotic-stress responsive SOD genes was done through quantitative Real Time PCR. Conclusion We identified abiotic-stress responsive genes that could help in improving the plant tolerance against abiotic stresses. This was the first study to describe the genome-wide analysis of SOD gene family in B. rapa and B. juncea, and the results will help in laying basic ground for future work of cloning and functional validation of SOD genes during abiotic stresses leading to Brassica crop improvement. Electronic supplementary material The online version of this article (10.1186/s12864-019-5593-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Deepika Verma
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Panjab University, Chandigarh, 160014, India
| | - Neha Lakhanpal
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Panjab University, Chandigarh, 160014, India
| | - Kashmir Singh
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Panjab University, Chandigarh, 160014, India.
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Kumar Ghosh D, Nanaji Shrikondawar A, Ranjan A. Local structural unfolding at the edge-strands of beta sheets is the molecular basis for instability and aggregation of G85R and G93A mutants of superoxide dismutase 1. J Biomol Struct Dyn 2019; 38:647-659. [DOI: 10.1080/07391102.2019.1584125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Debasish Kumar Ghosh
- Computational and Functional Genomics Group, Centre for DNA Fingerprinting and Diagnostics, Uppal, Hyderabad, India
- Graduate Studies, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Akshaykumar Nanaji Shrikondawar
- Computational and Functional Genomics Group, Centre for DNA Fingerprinting and Diagnostics, Uppal, Hyderabad, India
- Graduate Studies, Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - Akash Ranjan
- Computational and Functional Genomics Group, Centre for DNA Fingerprinting and Diagnostics, Uppal, Hyderabad, India
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155
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Effect of Anacardic Acid against Thiram Induced Tibial Dyschondroplasia in Chickens via Regulation of Wnt4 Expression. Animals (Basel) 2019; 9:ani9030082. [PMID: 30845678 PMCID: PMC6466137 DOI: 10.3390/ani9030082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 11/20/2022] Open
Abstract
Simple Summary This study evaluated the ameliorating effect of anacardic acid (AA) in tibial dyschondroplasia (TD) chickens. Our results showed that AA can increase the feed conversion ratio, improve the weight, length and width of the tibia. AA administration restored the antioxidant parameters significantly (p < 0.05). The gene expression analysis revealed a decrease in wingless-type member 4 (Wnt4) expressions in TD chickens as compared to the control group, while AA treatment up-regulated the Wnt4 expression. The present study demonstrates that the AA plays an important role to prevent the lameness and restore the size of the tibial growth plate of chickens by regulating the expression of Wnt4. Abstract Tibial dyschondroplasia (TD) is a tibia bone problem in broilers. Anacardic acid (AA) is a traditional Chinese medicine, which is commonly used to treat arthritis in human. The purpose of the present study is to investigate the effect of AA against TD. A total of 300 day-old poultry birds were equally divided and distributed into three different groups: Control, TD and AA groups. The results showed that the feed conversion ratio was significantly lower in the TD group than control chickens. The tibia bone parameters including weight, length and width were of low quality in TD chickens, while the width of the tibial growth plate was enlarged remarkably. Whereas, in the AA treatment group, the tibia bone parameters showed improvement and tend to return to normal. The antioxidant parameters level of glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), total and antioxidant capacity (T-AOC) was significantly decreased, while malondialdehyde (MDA) level was increased significantly in TD affected chickens. AA administration restored the antioxidant parameters significantly. The gene expression revealed a decrease in Wnt4 expression in TD chickens as compared to control chickens, while AA treatment up-regulated the Wnt4 expression. The present study demonstrates that the AA plays an important role to prevent the lameness and restore the size of tibial growth plate of chickens by regulating the expression of Wnt4.
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156
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Yadav S, Gill SS, Passricha N, Gill R, Badhwar P, Anjum NA, Francisco JBJ, Tuteja N. Genome-wide analysis and transcriptional expression pattern-assessment of superoxide dismutase (SOD) in rice and Arabidopsis under abiotic stresses. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.plgene.2018.10.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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157
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Genome-Wide Identification, Characterization, and Expression Analysis of the Grapevine Superoxide Dismutase (SOD) Family. Int J Genomics 2019; 2019:7350414. [PMID: 30923713 PMCID: PMC6409070 DOI: 10.1155/2019/7350414] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 12/01/2018] [Accepted: 12/20/2018] [Indexed: 01/23/2023] Open
Abstract
Superoxide dismutase (SOD) is an essential enzyme of the plant antioxidant system that responds to oxidative damage caused by adverse conditions. However, little is known about the SOD gene family in Vitis vinifera (Vv). In the present study, ten SOD genes, including 6 copper/zinc SODs, 2 iron SODs, and 2 manganese SODs, were identified in the grapevine genome where they were unevenly distributed on 12 chromosomes. Ten VvSOD genes were divided into three main groups based on phylogenetic analysis, subcellular localization, and the distribution of conserved protein motifs. Additionally, many cis-elements related to different stresses were found in the promoters of the 10 VvSOD genes. Syntenic analysis revealed that VvMSD1 and VvMSD2 were derived from segmental duplication, and VvCSD4 and VvCSD5 belong to a pair of tandemly duplicated genes. Gene expression analysis based on microarray data showed that the 10 VvSOD genes were expressed in all the tested tissues. Interestingly, the segmentally duplicated gene pair (VvMSD1 and VvMSD2) exhibited differential expression patterns in various organs. In contrast, the tandemly duplicated gene pair (VvCSD4 and VvCSD5) displayed similar expression patterns in the tested organs. Our results provide a basis for further functional research on the SOD gene family in grapevine.
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158
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Gao B, Chi L, Tu P, Gao N, Lu K. The Carbamate Aldicarb Altered the Gut Microbiome, Metabolome, and Lipidome of C57BL/6J Mice. Chem Res Toxicol 2019; 32:67-79. [PMID: 30406643 DOI: 10.1021/acs.chemrestox.8b00179] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The gut microbiome is highly involved in numerous aspects of host physiology, from energy harvest to stress response, and can confer many benefits to the host. The gut microbiome development could be affected by genetic and environmental factors, including pesticides. The carbamate insecticide aldicarb has been extensively used in agriculture, which raises serious public health concerns. However, the impact of aldicarb on the gut microbiome, host metabolome, and lipidome has not been well studied yet. Herein, we use multiomics approaches, including16S rRNA sequencing, shotgun metagenomics sequencing, metabolomics, and lipidomics, to elucidate aldicarb-induced toxicity in the gut microbiome and the host metabolic homeostasis. We demonstrated that aldicarb perturbed the gut microbiome development trajectory, enhanced gut bacterial pathogenicity, altered complex lipid profile, and induced oxidative stress, protein degradation, and DNA damage. The brain metabolism was also disturbed by the aldicarb exposure. These findings may provide a novel understanding of the toxicity of carbamate insecticides.
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Affiliation(s)
- Bei Gao
- Department of Environmental Sciences and Engineering , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States.,NIH West Coast Metabolomics Center , University of California , Davis , California 95616 , United States
| | - Liang Chi
- Department of Environmental Sciences and Engineering , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Pengcheng Tu
- Department of Environmental Sciences and Engineering , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Nan Gao
- National Engineering Research Center for Biotechnology, School of Biotechnology and Pharmaceutical Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Kun Lu
- Department of Environmental Sciences and Engineering , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
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159
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Cabrejos DAL, Alexandrino AV, Pereira CM, Mendonça DC, Pereira HD, Novo-Mansur MTM, Garratt RC, Goto LS. Structural characterization of a pathogenicity-related superoxide dismutase codified by a probably essential gene in Xanthomonas citri subsp. citri. PLoS One 2019; 14:e0209988. [PMID: 30615696 PMCID: PMC6322740 DOI: 10.1371/journal.pone.0209988] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 12/14/2018] [Indexed: 11/24/2022] Open
Abstract
Citrus canker is a plant disease caused by the bacteria Xanthomonas citri subsp. citri that affects all domestic varieties of citrus. Some annotated genes from the X. citri subsp. citri genome are assigned to an interesting class named "pathogenicity, virulence and adaptation". Amongst these is sodM, which encodes for the gene product XcSOD, one of four superoxide dismutase homologs predicted from the genome. SODs are widespread enzymes that play roles in the oxidative stress response, catalyzing the degradation of the deleterious superoxide radical. In Xanthomonas, SOD has been associated with pathogenesis as a counter measure against the plant defense response. In this work we initially present the 1.8 Å crystal structure of XcSOD, a manganese containing superoxide dismutase from Xanthomonas citri subsp. citri. The structure bears all the hallmarks of a dimeric member of the MnSOD family, including the conserved hydrogen-bonding network residues. Despite the apparent gene redundancy, several attempts to obtain a sodM deletion mutant were unsuccessful, suggesting the encoded protein to be essential for bacterial survival. This intriguing observation led us to extend our structural studies to the remaining three SOD homologs, for which comparative models were built. The models imply that X. citri subsp. citri produces an iron-containing SOD which is unlikely to be catalytically active along with two conventional Cu,ZnSODs. Although the latter are expected to possess catalytic activity, we propose they may not be able to replace XcSOD for reasons such as distinct subcellular compartmentalization or differential gene expression in pathogenicity-inducing conditions.
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Affiliation(s)
- Diego Antonio Leonardo Cabrejos
- Laboratório de Biologia Estrutural, Grupo de Cristalografia, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | - André Vessoni Alexandrino
- Laboratório de Bioquímica e Biologia Molecular Aplicada—LBBMA, Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Camila Malvessi Pereira
- Laboratório de Bioquímica e Biologia Molecular Aplicada—LBBMA, Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Deborah Cezar Mendonça
- Laboratório de Biologia Estrutural, Grupo de Cristalografia, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | - Humberto D'Muniz Pereira
- Laboratório de Biologia Estrutural, Grupo de Cristalografia, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | - Maria Teresa Marques Novo-Mansur
- Laboratório de Bioquímica e Biologia Molecular Aplicada—LBBMA, Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Richard Charles Garratt
- Laboratório de Biologia Estrutural, Grupo de Cristalografia, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | - Leandro Seiji Goto
- Laboratório de Bioquímica e Biologia Molecular Aplicada—LBBMA, Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
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160
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Yadav N, Patel V, Singh S. Cerium Oxide-Based Nanozymes in Biology and Medicine. SPRINGER PROCEEDINGS IN PHYSICS 2019. [DOI: 10.1007/978-981-15-0202-6_15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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161
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Structure-guided identification of function: role of Capsicum annuum vicilin during oxidative stress. Biochem J 2018; 475:3057-3071. [PMID: 30181145 DOI: 10.1042/bcj20180520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/25/2018] [Accepted: 08/31/2018] [Indexed: 12/11/2022]
Abstract
Proteins belonging to cupin superfamily are known to have critical and diverse physiological functions. However, 7S globulins family, which is also a part of cupin superfamily, were undermined as only seed storage proteins. Structure determination of native protein - Vic_CAPAN from Capsicum annuum - was carried out, and its physiological functions were explored after purifying the protein by ammonium sulfate precipitation followed by size exclusion chromatography. The crystal structure of vicilin determined at 2.16 Å resolution revealed two monomers per asymmetric unit which are juxtaposed orthogonal with each other. Vic_CAPAN consists predominately of β-sheets that folds to form a β-barrel structure commonly called cupin fold. Each monomer of Vic_CAPAN consists of two cupin fold domains, N-terminal and C-terminal, which accommodate two different ligands. A bound ligand was identified at the C-terminal cupin fold in the site presumably conserved for metabolites in the crystal structure. The ligand was confirmed to be salicylic acid through mass spectrometric analysis. A copper-binding site was further observed near the conserved ligand-binding pocket, suggesting possible superoxide dismutase activity of Vic_CAPAN which was subsequently confirmed biochemically. Vicilins from other sources did not exhibit this activity indicating functional specificity of Vic_CAPAN. Discovery of bound salicylic acid, which is a known regulator of antioxidant pathway, and revelation of superoxide dismutase activity suggest that Vic_CAPAN has an important role during oxidative stress. As salicylic acid changes the redox state of cell, it may act as a downstream signal for various pathways involved in plant biotic and abiotic stress rescue.
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162
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Dashtestani F, Ghourchian H, Najafi A. Silver-gold-apoferritin nanozyme for suppressing oxidative stress during cryopreservation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:831-840. [PMID: 30423769 DOI: 10.1016/j.msec.2018.10.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 09/10/2018] [Accepted: 10/02/2018] [Indexed: 11/16/2022]
Abstract
Reactive oxygen species (ROS) cause oxidative stress, which involves in the pathogenesis of many serious diseases. Apoferittin containing gold-silver nanoparticles (Au-Ag-AFT) was designed and evaluated as a nanozyme for scavenging the ROS. The nanozyme consisting of silver-gold nanohybrid in apoferittin cage represents superoxide dismutase, catalase and peroxidase mimetic activities. The Au-Ag-AFT nanozyme was characterized by spectroscopy, FESEM, TEM and dynamic light scattering. The inhibition process for pyrogallol autoxidation was used for assaying the superoxide dismutase mimetic activity and measuring the kinetic parameters of Au-Ag-AFT nanozyme. Additionally, Aebi method and standard protocol was used for evaluating the catalase and peroxidase mimetic activity. The kcat values for superoxide dismutase, catalase and peroxidase mimetics activity were 1.4 × 106, 0.1 and 9 × 103 s-1 respectively. These values indicated that Au-Ag-AFT nanozyme could act as a suitable ROS scavenger. Additionally, Au-Ag-AFT nanozyme was examined as a protective agent for human sperm against oxidative stress induced during the cryopreservation process. Presence of the nanozyme in the sperm media significantly increased the motility and viability of the cells and also decreased the ROS, apoptosis and necrosis (P < 0.05) compare to the control group.
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Affiliation(s)
- Fariba Dashtestani
- Laboratory of Bioanalysis, Institute of Biochemistry & Biophysics, University of Tehran, P.O. Box 13145-1384, Tehran, Iran
| | - Hedayatollah Ghourchian
- Laboratory of Bioanalysis, Institute of Biochemistry & Biophysics, University of Tehran, P.O. Box 13145-1384, Tehran, Iran.
| | - Atefeh Najafi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, P.O. Box 14155-6447, Tehran, Iran
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163
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Chalmers L, Vera LM, Taylor JF, Adams A, Migaud H. Comparative ploidy response to experimental hydrogen peroxide exposure in Atlantic salmon (Salmo salar). FISH & SHELLFISH IMMUNOLOGY 2018; 81:354-367. [PMID: 30012493 PMCID: PMC6115329 DOI: 10.1016/j.fsi.2018.07.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/04/2018] [Accepted: 07/10/2018] [Indexed: 05/05/2023]
Abstract
While research into the growth, survival, nutrition and, more recently, disease susceptibility of triploid Atlantic salmon has expanded, there remains an overall lack of studies assessing the response of triploids to chemical treatments. It is essential that the response of triploids to disease treatments be characterised to validate their suitability for commercial production. This study aimed to investigate and compare the stress and immune responses of triploid and diploid Atlantic salmon following an experimental treatment with hydrogen peroxide (H2O2). A dose response test was first undertaken to determine a suitable test dose for both diploid and triploid Atlantic salmon. Following this, diploids and triploids were exposed to H2O2 (1800 ppm) for 20 min, as per commercial practices, after which blood glucose and lactate, and plasma cortisol and lysozyme were measured, along with the expression of oxidative stress and immune-related genes. In the first 6 h post-exposure to H2O2, comparable mortalities occurred in both diploid and triploid Atlantic salmon. Cortisol, glucose and lactate were not significantly influenced by ploidy suggesting that, physiologically, triploid Atlantic salmon are able to cope with the stress associated with H2O2 exposure as well as their diploid counterparts. Exposure to H2O2 significantly elevated the expression of cat and sod2 in diploid livers and gr, il1β and crp/sap1b in diploid gills, while it significantly decreased the expression of saa5 and crp/sap1a in diploid gills. In triploids, the expression levels of cat, hsp70, sod1, saa5, crp/sap1a and crp/sap1b in liver was significantly higher in fish exposed to H2O2 compared to control fish. The expression of gr, sod1 and il1β in triploid gills was also elevated in response to H2O2 exposure. This study represents the first experimental evidence of the effects of H2O2 exposure on triploid Atlantic salmon and continues to support their application into commercial production.
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Affiliation(s)
- Lynn Chalmers
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
| | - Luisa M Vera
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
| | - John F Taylor
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
| | - Alexandra Adams
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
| | - Herve Migaud
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK.
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164
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Kazemi R, Sheikhahmadi A, Sadeghi G. The effect of purslane hydroextract and zinc on performance, antioxidant capacity and immunity of broiler chickens during summer conditions. Arch Anim Breed 2018. [DOI: 10.5194/aab-61-365-2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Due to negative effects of high ambient temperature, the present study was conducted to investigate the effects of Portulaca oleracea hydroextract (PHE) and zinc (Zn) on the growth performance and immunity of broiler chickens reared under high summer ambient temperature conditions. A total of 420 day-old male broiler chickens (Ross 308) were randomly allocated to seven dietary treatments each replicated four times with 15 birds per replicate. The basal diet as the control diet was supplemented with 100 mg kg−1 butylated hydroxytoluene (BHT), or 300 and 600 mg kg−1 of PHE, 100 mg kg−1 of zinc and 100 mg kg−1 of zinc plus 300 or 600 mg kg−1 of PHE (ZP300 and ZP600). The result of the present study showed that Zn, PHE and their combination did not alter daily feed intake and feed conversion ratio. Although there was a tendency toward an increase in broiler body weight at 24 and 44 days of age (P=0.059 and P=0.061), the body weight of birds fed the basal diet supplemented with Zn reduced at day 10. The birds fed diets supplemented with BHT or ZP600 showed lower aspartate aminotransferase (ASAT) and lactate dehydrogenase activity at 24 days of age (P<0.05), but it remains lower in the ZP600 group only for ASAT activity level at day 44. The results of the present study suggest that dietary PHE and Zn supplementation partially improved body weight and serum antioxidant capacity, superoxide dismutase activity and antibody titer against sheep red blood cells and Newcastle diseases in the broiler chickens during summer conditions.
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165
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Perera NCN, Godahewa GI, Nam BH, Park JY, Lee J. Two metalloenzymes from rockfish (Sebastes schligellii): Deciphering their potential involvement in redox homeostasis against oxidative stress. FISH & SHELLFISH IMMUNOLOGY 2018; 80:31-45. [PMID: 29859306 DOI: 10.1016/j.fsi.2018.05.050] [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: 03/20/2018] [Revised: 05/21/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Disturbance in the balance between pro-oxidants and anti-oxidants result oxidative stress in aerobic organisms. However, oxidative stress can be inhibited by enzymatic and non-enzymatic defense mechanisms. Superoxide dismutases (SODs) are well-known scavengers of superoxide radicals, and they protect cells by detoxifying hazardous reactive oxygen species. Here, we have identified and characterized two different SODs, CuZnSOD and MnSOD, from black rockfish (RfCuZnSOD and RfMnSOD, respectively). In silico analysis revealed the well-conserved molecular structures comprising all essential properties of CuZnSOD and MnSOD. Phylogenetic analysis revealed that both RfCuZnSOD and RfMnSOD cladded with their fish counterparts. The recombinant RfSOD proteins demonstrated their potential superoxide scavenging abilities through a xanthine oxidase assay. The optimum temperature and pH conditions for both rRfSODs were 25 °C and pH 8, respectively. Moreover, the potential peroxidation function of rRfCuZnSOD was observed in the presence of HCO3-. The highest peroxidation activity was observed at 100 μg/mL of rRfCuZnSOD using the MTT cell viability assay and flow cytometry. The analogous tissue-specific expression profile indicated ubiquitous expression of both RfCuZnSOD and RfMnSOD in selected tissues of healthy juvenile rockfish. An immune challenge experiment illustrated the altered expression profiles of both RfCuZnSOD and RfMnSOD against lipopolysaccharide, Streptococcus iniae, and polyinosinic-polycytidylic acid (poly I:C). Collectively, these results strengthen the general understanding of the structural and functional characteristics of SODs within the host defense system.
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Affiliation(s)
- N C N Perera
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - G I Godahewa
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Bo-Hye Nam
- Biotechnology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Jung Youn Park
- Biotechnology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea.
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166
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Recent trends in electrochemical biosensors of superoxide dismutases. Biosens Bioelectron 2018; 116:89-99. [DOI: 10.1016/j.bios.2018.05.040] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 01/16/2023]
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167
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Sesquiterpene lactone from Artemisia argyi induces gastric carcinoma cell apoptosis via activating NADPH oxidase/reactive oxygen species/mitochondrial pathway. Eur J Pharmacol 2018; 837:164-170. [PMID: 30075222 DOI: 10.1016/j.ejphar.2018.07.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 12/27/2022]
Abstract
Apoptosis is an essential type of programmed cell death. Previous studies have demonstrated that a wide range of natural-derived anticancer agents induce apoptosis by trigging oxidative stress. Artemisia argyi is a traditional Chinese herb for treating diverse diseases including dyspepsia, arthroncus, and anaphylactic disease. In this study, sesquiterpene lactone 3 (SL3), a bioactive ingredient isolated from Artemisia argyi was found to show obvious inhibitory effect on two gastric carcinoma cells. Mechanism study revealed that SL3 promoted the membrane translocation of p47, activated nicotinamide adenine dinucleotide (NADPH) oxidase, and evaluated intracellular reactive oxygen species production, leading to the activation of mitochondria-dependent caspase apoptosis pathway. Collectively, these findings show that SL3 is a promising anticancer candidate against gastric carcinoma by activating NADPH oxidase/reactive oxygen species/mitochondrial pathway.
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168
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Kolbas A, Kolbas N, Marchand L, Herzig R, Mench M. Morphological and functional responses of a metal-tolerant sunflower mutant line to a copper-contaminated soil series. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:16686-16701. [PMID: 29611120 DOI: 10.1007/s11356-018-1837-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 03/19/2018] [Indexed: 06/08/2023]
Abstract
The potential use of a metal-tolerant sunflower mutant line for biomonitoring Cu phytoavailability, Cu-induced soil phytotoxicity, and Cu phytoextraction was assessed on a Cu-contaminated soil series (13-1020 mg Cu kg-1) obtained by fading a sandy topsoil from a wood preservation site with a similar uncontaminated soil. Morphological and functional plant responses as well as shoot, leaf, and root ionomes were measured after a 1-month pot experiment. Hypocotyl length, shoot and root dry weight (DW) yields, and leaf area gradually decreased as soil Cu exposure rose. Their dose-response curves (DRC) plotted against indicators of Cu exposure were generally well fitted by sigmoidal curves. The half-maximal effective concentration (EC50) of morphological parameters ranged between 203 and 333 mg Cu kg-1 soil, corresponding to 290-430 μg Cu L-1 in the soil pore water, and 20 ± 5 mg Cu kg-1 DW in the shoots. The EC10 for shoot Cu concentration (13-15 mg Cu kg-1 DW) coincided to 166 mg Cu kg-1 soil. Total chlorophyll content and total antioxidant capacity (TAC) were early biomarkers (EC10: 23 and 51 mg Cu kg-1 soil). Their DRC displayed a biphasic response. Photosynthetic pigment contents, e.g., carotenoids, correlated with TAC. Ionome was changed in Cu-stressed roots, shoots, and leaves. Shoot Cu removal peaked roughly at 280 μg Cu L-1 in the soil pore water.
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Affiliation(s)
- Aliaksandr Kolbas
- BIOGECO, INRA, Univ. Bordeaux, Bât. B2, allée G. St-Hilaire, CS50023, F-33615, Pessac cedex, France
- Brest State University named after A.S. Pushkin, Boulevard of Cosmonauts, 21, 224016, Brest, Belarus
| | - Natallia Kolbas
- Brest State University named after A.S. Pushkin, Boulevard of Cosmonauts, 21, 224016, Brest, Belarus
| | - Lilian Marchand
- BIOGECO, INRA, Univ. Bordeaux, Bât. B2, allée G. St-Hilaire, CS50023, F-33615, Pessac cedex, France
| | - Rolf Herzig
- Phytotech Foundation, Quartiergasse 12, 3013, Berne, Switzerland
| | - Michel Mench
- BIOGECO, INRA, Univ. Bordeaux, Bât. B2, allée G. St-Hilaire, CS50023, F-33615, Pessac cedex, France.
- INRA, UMR BIOGECO 1202, Diversity and Functioning of Communities, University of Bordeaux, Bât. B2, allée G. St-Hilaire, CS50023, F-33615, Pessac cedex, France.
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169
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Trist BG, Hare DJ, Double KL. A Proposed Mechanism for Neurodegeneration in Movement Disorders Characterized by Metal Dyshomeostasis and Oxidative Stress. Cell Chem Biol 2018; 25:807-816. [PMID: 29861271 DOI: 10.1016/j.chembiol.2018.05.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/09/2018] [Accepted: 05/01/2018] [Indexed: 02/07/2023]
Abstract
Shared molecular pathologies between distinct neurodegenerative disorders offer unique opportunities to identify common mechanisms of neuron death, and apply lessons learned from one disease to another. Neurotoxic superoxide dismutase 1 (SOD1) proteinopathy in SOD1-associated familial amyotrophic lateral sclerosis (fALS) is recapitulated in idiopathic Parkinson disease (PD), suggesting that these two phenotypically distinct disorders share an etiological pathway, and tractable therapeutic target(s). Despite 25 years of research, the molecular determinants underlying SOD1 misfolding and toxicity in fALS remain poorly understood. The absence of SOD1 mutations in PD highlights mounting evidence that SOD1 mutations are not the sole cause of SOD1 protein misfolding occasioning oligomerization and toxicity, reinforcing the importance of non-genetic factors, including protein metallation and post-translational modification in determining SOD1 stability and function. We propose that these non-genetic factors underlie the misfolding and dysfunction of SOD1 and other proteins in both PD and fALS, constituting a shared and tractable pathway to neurodegeneration.
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Affiliation(s)
- Benjamin Guy Trist
- Discipline of Biomedical Science and Brain and Mind Centre, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia
| | - Dominic James Hare
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC 3052, Australia; Department of Pathology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Kay Lorraine Double
- Discipline of Biomedical Science and Brain and Mind Centre, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia.
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170
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Mi C, Teng Y, Wang X, Yu H, Huang Z, Zong W, Zou L. Molecular interaction of triclosan with superoxide dismutase (SOD) reveals a potentially toxic mechanism of the antimicrobial agent. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 153:78-83. [PMID: 29407741 DOI: 10.1016/j.ecoenv.2018.01.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 05/24/2023]
Abstract
In this article, the interaction mechanism between the superoxide dismutase (SOD) and the triclosan (TCS), a kind of antimicrobial agent which is of widely application with potential effects both on environment and human health, was explored through a series of spectroscopic methods, animal experiment and the molecular docking simulation. The negative free energy change ∆G, enthalpy change (∆H = 162.21 kJmol-1) and entropy change (∆S = 615 Jmol-1K-1) demonstrated that TCS could combine with SOD spontaneously through hydrophobic interaction to form a complex. The binding constants of Ka293 and Ka313 were 1.706 × 103 and 1.2 × 105 Lmol-1, respectively. Furthermore, the interaction could also influence the skeleton structure and secondary contents of SOD. The molecular docking analysis revealed the TCS located between two subunits of SOD, and there was a hydrogen bond between TCS and the residue Asn51 of SOD, which influenced the structure of protein and resulted in a decrease of enzyme activity. This work could help understand the interaction mechanism between SOD and TCS. Moreover, it could also be used to consult for toxicity assessment of TCS at molecular level.
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Affiliation(s)
- Chenyu Mi
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, 1800# Lihu Avenue, Wuxi 214122, PR China
| | - Yue Teng
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, 1800# Lihu Avenue, Wuxi 214122, PR China
| | - Xiaofang Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, 1800# Lihu Avenue, Wuxi 214122, PR China
| | - Hongyan Yu
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, 1800# Lihu Avenue, Wuxi 214122, PR China
| | - Zhenxing Huang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, 1800# Lihu Avenue, Wuxi 214122, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, PR China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# Wenhua Road, Jinan 250014, PR China
| | - Luyi Zou
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, 1800# Lihu Avenue, Wuxi 214122, PR China.
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171
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Franco-Iborra S, Vila M, Perier C. Mitochondrial Quality Control in Neurodegenerative Diseases: Focus on Parkinson's Disease and Huntington's Disease. Front Neurosci 2018; 12:342. [PMID: 29875626 PMCID: PMC5974257 DOI: 10.3389/fnins.2018.00342] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/02/2018] [Indexed: 12/15/2022] Open
Abstract
In recent years, several important advances have been made in our understanding of the pathways that lead to cell dysfunction and death in Parkinson's disease (PD) and Huntington's disease (HD). Despite distinct clinical and pathological features, these two neurodegenerative diseases share critical processes, such as the presence of misfolded and/or aggregated proteins, oxidative stress, and mitochondrial anomalies. Even though the mitochondria are commonly regarded as the "powerhouses" of the cell, they are involved in a multitude of cellular events such as heme metabolism, calcium homeostasis, and apoptosis. Disruption of mitochondrial homeostasis and subsequent mitochondrial dysfunction play a key role in the pathophysiology of neurodegenerative diseases, further highlighting the importance of these organelles, especially in neurons. The maintenance of mitochondrial integrity through different surveillance mechanisms is thus critical for neuron survival. Mitochondria display a wide range of quality control mechanisms, from the molecular to the organellar level. Interestingly, many of these lines of defense have been found to be altered in neurodegenerative diseases such as PD and HD. Current knowledge and further elucidation of the novel pathways that protect the cell through mitochondrial quality control may offer unique opportunities for disease therapy in situations where ongoing mitochondrial damage occurs. In this review, we discuss the involvement of mitochondrial dysfunction in neurodegeneration with a special focus on the recent findings regarding mitochondrial quality control pathways, beyond the classical effects of increased production of reactive oxygen species (ROS) and bioenergetic alterations. We also discuss how disturbances in these processes underlie the pathophysiology of neurodegenerative disorders such as PD and HD.
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Affiliation(s)
- Sandra Franco-Iborra
- Vall d'Hebron Research Institute (VHIR)-Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED), Barcelona, Spain
| | - Miquel Vila
- Vall d'Hebron Research Institute (VHIR)-Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED), Barcelona, Spain
- Catalan Institution for Research and Advanced Studies, Barcelona, Spain
- Department of Biochemistry and Molecular Biology, Autonomous University of Barcelona, Barcelona, Spain
| | - Celine Perier
- Vall d'Hebron Research Institute (VHIR)-Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED), Barcelona, Spain
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172
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Wurster CD, Ludolph AC. Antisense oligonucleotides in neurological disorders. Ther Adv Neurol Disord 2018; 11:1756286418776932. [PMID: 29854003 PMCID: PMC5971383 DOI: 10.1177/1756286418776932] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/17/2017] [Indexed: 12/12/2022] Open
Abstract
The introduction of genetics revolutionized the field of neurodegenerative and neuromuscular diseases and has provided considerable insight into the underlying pathomechanisms. Nevertheless, effective treatment options have been limited. This changed recently when antisense oligonucleotides (ASOs) could be translated from in vitro and experimental animal studies into clinical practice. In 2016, two ASOs were approved by the United States US Food and Drug Administration (FDA) and demonstrated remarkable efficacy in Duchenne muscular dystrophy (DMD) and spinal muscular atrophy (SMA). ASOs are synthetic single-stranded strings of nucleic acids. They selectively bind to specific premessenger ribonucleic acid (pre-mRNA)/mRNA sequences and alter protein synthesis by several mechanisms of action. Thus, apart from gene replacement, ASOs may therefore provide the most direct therapeutic strategy for influencing gene expression. In this review, we shall discuss basic mechanisms of ASO action, the role of chemical modifications needed to improve the pharmacodynamic and pharmacokinetic properties of ASOs, and we shall then focus on several ASOs developed for the treatment of neurodegenerative and neuromuscular disorders, including SMA, DMD, myotonic dystrophies, Huntington's disease, amyotrophic lateral sclerosis and Alzheimer's disease.
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Affiliation(s)
- Claudia D. Wurster
- Department of Neurology, University of Ulm, Oberer Eselsberg 45, Ulm, 89081, Germany
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173
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Li S, Yang E, Shen L, Niu D, Breitzig M, Tan LC, Wu X, Huang M, Sun H, Wang F. The novel truncated isoform of human manganese superoxide dismutase has a differential role in promoting metastasis of lung cancer cells. Cell Biol Int 2018; 42:1030-1040. [DOI: 10.1002/cbin.10972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 04/06/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Shuaiguang Li
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Enze Yang
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Lianghua Shen
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Dewei Niu
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Mason Breitzig
- University of South Florida; 12901 Bruce B Downs Blvd, MDC 19 Tampa 33612 Florida
| | - Lee Charles Tan
- University of South Florida; 12901 Bruce B Downs Blvd, MDC 19 Tampa 33612 Florida
| | - Xiaocong Wu
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Meiyan Huang
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Hanxiao Sun
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
| | - Feng Wang
- Institute of Genomic Medicine; College of Pharmacy, Jinan University; Guangzhou 510632 China
- Guangdong Provincial Key Laboratory of Pharmacodynamics Constituents of TCM and New Drugs Research; Jinan University; Guangzhou 510632 China
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174
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Goyal VD, Magliery TJ. Phylogenetic spread of sequence data affects fitness of SOD1 consensus enzymes: Insights from sequence statistics and structural analyses. Proteins 2018; 86:609-620. [PMID: 29490429 DOI: 10.1002/prot.25486] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 01/25/2018] [Accepted: 02/24/2018] [Indexed: 12/19/2022]
Abstract
Non-natural protein sequences with native-like structures and functions can be constructed successfully using consensus design. This design strategy is relatively well understood in repeat proteins with simple binding function, however detailed studies are lacking in globular enzymes. The SOD1 family is a good model for such studies due to the availability of large amount of sequence and structure data motivated by involvement of human SOD1 in the fatal motor neuron disease amyotrophic lateral sclerosis (ALS). We constructed two consensus SOD1 enzymes from multiple sequence alignments from all organisms and eukaryotic organisms. A significant difference in their catalytic activities shows that the phylogenetic spread of the sequences used affects the fitness of the construct obtained. A mutation in an electrostatic loop and overall design incompatibilities between bacterial and eukaryotic sequences were implicated in this disparity. Based on this analysis, a bioinformatics approach was used to classify mutations thought to cause familial ALS providing a unique high level view of the physical basis of disease-causing aggregation of human SOD1.
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Affiliation(s)
- Venuka Durani Goyal
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210.,Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Thomas J Magliery
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210
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175
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Li Y, Sun B, Chen S, Ren Y, Cui F, Yang F, Chen Z, Ling L, Huang X. A novel D90_K91insN mutation in exon 4 of the SOD1 gene caused familial amyotrophic lateral sclerosis in a Chinese pedigree. Amyotroph Lateral Scler Frontotemporal Degener 2018; 19:516-521. [PMID: 29609497 DOI: 10.1080/21678421.2018.1457057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We reported a novel heterozygous duplication mutation (c.272_274dupACA, D90_K91insN) in exon 4 of the SOD1 gene in a Chinese pedigree. This pedigree demonstrates an autosomal dominant pattern of inheritance, with potentially reduced penetrance. The clinical phenotype was rather uniform with a distal lower extremity onset, predominant involvement of lower motor neurons (LMNs), and a relatively short survival time (mean 2.6 years) compared with other mutations in the loop V structure of SOD1. We also detected that the average SOD1 activity in D90_K91insN mutation carriers is 68.5% of wild-type controls. In conclusion, we identified the first non-frameshift duplication mutation in loop V of the human SOD1 in the Chinese population, suggesting the importance of the loop V structure in the pathogenicity of FALS.
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Affiliation(s)
- Yanran Li
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Bo Sun
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Siyu Chen
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Yuting Ren
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Fang Cui
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Fei Yang
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Zhaohui Chen
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Li Ling
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
| | - Xusheng Huang
- a Department of Neurology , Chinese PLA General Hospital , Beijing , China
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176
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Zhou W, Cao L, Jeffries J, Zhu X, Staiger CJ, Deng Q. Neutrophil-specific knockout demonstrates a role for mitochondria in regulating neutrophil motility in zebrafish. Dis Model Mech 2018; 11:dmm033027. [PMID: 29590639 PMCID: PMC5897731 DOI: 10.1242/dmm.033027] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/27/2018] [Indexed: 12/30/2022] Open
Abstract
Neutrophils are fast-moving cells essential for host immune functions. Although they primarily rely on glycolysis for ATP, isolated primary human neutrophils depend on mitochondrial membrane potential for chemotaxis. However, it is not known whether mitochondria regulate neutrophil motility in vivo, and the underlying molecular mechanisms remain obscure. Here, we visualized mitochondria in an interconnected network that localizes to the front and rear of migrating neutrophils using a novel transgenic zebrafish line. To disrupt mitochondrial function genetically, we established a gateway system harboring the CRISPR/Cas9 elements for tissue-specific knockout. In a transgenic line, neutrophil-specific disruption of mitochondrial DNA polymerase, polg, significantly reduced the velocity of neutrophil interstitial migration. In addition, inhibiting the mitochondrial electron transport chain or the enzymes that reduce mitochondrial reactive oxygen species also inhibited neutrophil motility. The reduced cell motility that resulted from neutrophil-specific knockout of sod1 was rescued with sod1 mRNA overexpression, or by treating with scavengers of reactive oxygen species. Together, our work has provided the first in vivo evidence that mitochondria regulate neutrophil motility, as well as tools for the functional characterization of mitochondria-related genes in neutrophils and insights into immune deficiency seen in patients with primary mitochondrial disorders.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Wenqing Zhou
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Lingyan Cao
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Jacob Jeffries
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Xiaoguang Zhu
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Christopher J Staiger
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907, USA
- Purdue Institute for Inflammation, Immunology, & Infectious Disease, Purdue University, West Lafayette, IN 47907, USA
| | - Qing Deng
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907, USA
- Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
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177
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Tucker EK, Nowak RA. Methylmercury alters proliferation, migration, and antioxidant capacity in human HTR8/SV-neo trophoblast cells. Reprod Toxicol 2018; 78:60-68. [PMID: 29581082 DOI: 10.1016/j.reprotox.2018.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 03/01/2018] [Accepted: 03/22/2018] [Indexed: 12/19/2022]
Abstract
Methylmercury, a potent neurotoxin, is able to pass through the placenta, but its effects on the placenta itself have not been elucidated. Using an immortalized human trophoblast cell line, HTR8/SV-neo, we assessed the in vitro toxicity of methylmercury. We found that 1 μg/mL methylmercury decreased viability, proliferation, and migration; and it had effects on antioxidant genes similar to those seen in neural cells. However, methylmercury led to decreased expression of superoxide dismutase 1 and increased expression of surfactant protein D. HTR cells treated 0.01 or 0.1 μg/mL methylmercury had increased migration rates along with decreased expression of an adhesion gene, cadherin 3, suggesting that low doses of methylmercury promote migration in HTR cells. Our results indicate that trophoblast cells react differently to methylmercury relative to neural cell lines, and thus investigation of methylmercury toxicity in placental cells is needed to understand the effects of this heavy metal on the placenta.
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Affiliation(s)
- Emily K Tucker
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207, W. Gregory Dr., Urbana, Illinois, USA.
| | - Romana A Nowak
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207, W. Gregory Dr., Urbana, Illinois, USA
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178
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Tang Q, Wu JQ, Li HY, Feng YF, Zhang Z, Liang YN. Dinuclear Cu(II) complexes based on p
-xylylene-bridged bis(1,4,7-triazacyclononane) ligands: Synthesis, characterization, DNA cleavage abilities and evaluation of superoxide dismutase- and catalase-like activities. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Qi Tang
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Ji-Qing Wu
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Hong-Yan Li
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Yan-Fang Feng
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Zhong Zhang
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Yu-Ning Liang
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
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179
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Lewandowski Ł, Kepinska M, Milnerowicz H. Inhibition of copper-zinc superoxide dismutase activity by selected environmental xenobiotics. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 58:105-113. [PMID: 29310006 DOI: 10.1016/j.etap.2017.12.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/20/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
The function of Cu,Zn-SOD is to dismutate superoxide into hydrogen peroxide and oxygen. This task is fulfilled due to structural nuances of the enzyme. Many environmental xenobiotics have been proved to inhibit Cu,Zn-SOD. Those compounds could be found not only in industrial sewage, cigarettes and various chemical agents - some of them are used as drugs, drug production substrates or are the product of drug biotransformation. Cu,Zn-SOD exposition to these compounds leads to inhibition due to: copper ion chelation, unfolding the structure of the enzyme, affecting residues vital for activity maintenance. This review covers a selection of Cu,Zn-SOD inhibitors, referring to in vivo and in vitro study.
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Affiliation(s)
- Łukasz Lewandowski
- Department of Biomedical and Environmental Analyses, Wroclaw Medical University, Faculty of Pharmacy Borowska 211, 50-556 Wrocław, Poland
| | - Marta Kepinska
- Department of Biomedical and Environmental Analyses, Wroclaw Medical University, Faculty of Pharmacy Borowska 211, 50-556 Wrocław, Poland.
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analyses, Wroclaw Medical University, Faculty of Pharmacy Borowska 211, 50-556 Wrocław, Poland
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180
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Fındıklı E, Camkurt MA, İzci F, Karaaslan MF, Fındıklı HA, Sümer P, Kurutaş EB. The Diagnostic Value of Malondialdehyde, Superoxide Dismutase and Catalase Activity in Drug Naïve, First Episode, Non-Smoker Generalized Anxiety Disorder Patients. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2018; 16:88-94. [PMID: 29397670 PMCID: PMC5810442 DOI: 10.9758/cpn.2018.16.1.88] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/03/2016] [Accepted: 04/25/2016] [Indexed: 12/31/2022]
Abstract
Objective Generalized anxiety disorder (GAD) is a common anxiety disorder. Although lots of research done to reveal neurobiological basis of GAD, it is still unclear. Diagnosis of GAD depends on subjective complaints of patients, thus the need for a biological marker is constantly emerging. In this study, we aimed to investigate diagnostic value of malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) in GAD. Methods We evaluated MDA, SOD, and CAT levels in peripheral blood of 46 patients and 45 controls. MDA was measured with Ohkawa’s methods, SOD was measured with Fridovich method, and CAT was measured with Beutler’s method. Results MDA was significantly increased in patients than controls, medians 4.05 nmol/mg and 1.71 nmol/mg respectively, p<0.001; SOD and CAT activity was significantly decreased in patients than controls, medians of SOD were 159.07 U/mg and 301.87 U/mg, p<0.001 respectively, medians for CAT were 138.47 U/mg and 160.60 U/mg respectively. We found high correlation between Hamilton Anxiety Rating Scale and SOD, MDA r values were 0.723 and 0.715 respectively, p<0.001 for both. Receiver operator characteristic (ROC) curve analysis showed high diagnostic performance for MDA and SOD, low diagnostic performance for CAT, areas under curve were 1.0, 1.0, and 0.648 respectively. Conclusion Our results reveal possible diagnostic value of MDA, less likely of SOD but not CAT. Future studies should investigate diagnostic value of oxidants and antioxidantn enzymes in larger samples and include diagnostic value of these parameters.
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Affiliation(s)
- Ebru Fındıklı
- Department of Psychiatry, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
| | - Mehmet Akif Camkurt
- Department of Psychiatry, Afşin State Hospital, Afşin, Kahramanmaraş, Turkey
| | - Filiz İzci
- Department of Psychiatry, İstanbul Bilgi University, İstanbul, Turkey
| | | | - Hüseyin Avni Fındıklı
- Department of Internal Medicine, School of Medicine, Adıyaman University, Adıyaman, Turkey
| | - Perihan Sümer
- Department of Biochemistry, Faculty of Medicine, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
| | - Ergül Belge Kurutaş
- Department of Biochemistry, Faculty of Medicine, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
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181
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Zhang H, Mehmood K, Li K, Rehman MU, Jiang X, Huang S, Wang L, Zhang L, Tong X, Nabi F, Yao W, Iqbal MK, Shahzad M, Li J. Icariin Ameliorate Thiram-Induced Tibial Dyschondroplasia via Regulation of WNT4 and VEGF Expression in Broiler Chickens. Front Pharmacol 2018. [PMID: 29527166 PMCID: PMC5829035 DOI: 10.3389/fphar.2018.00123] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tibial dyschondroplasia (TD) is main bone problem in fast growing poultry birds that effect proximal growth plate (GP) of tibia bone. TD is broadly defined as non-vascularized and non-mineralized, and enlarged GP with tibia bone deformation and lameness. Icariin (Epimedium sagittatum) is a traditional Chinese medicine, which is commonly practiced in the treatment of various bone diseases. Recently, many researcher reports about the beneficial effects of icariin in relation to various types of bone conditions but no report is available about promoting effect of icariin against TD. Therefore, current study was conducted to explore the ameliorating effect of icariin in thiram-induced TD chickens. A total of 180 broiler chicks were equally distributed in three groups; control, TD induced by thiram (50 mg/kg), and icariin group (treated with icariin @10 mg/kg). All groups were administered with normal standard diet ad libitum regularly until the end of experiment. The wingless-type member 4 (WNT4) and vascular endothelial growth factor (VEGF) genes and proteins expression were analyzed by quantitative real-time polymerase chain reaction and western blot analysis respectively. Tibial bone parameters, physiological changes in serum, antioxidant enzymes, and chicken growth performance were determined to assess advantage and protective effect of the medicine in broiler chicken. The expression of WNT4 was decreased while VEGF increased significantly (P < 0.05) in TD affected chicks. TD enhanced the GP, lameness, and irregular chondrocytes, while reduced the liver function, antioxidant enzymes in liver, and performance of chickens. Icariin treatment up-regulated WNT4 and down-regulated VEGF gene and protein expressions significantly (P < 0.05), restored the GP width, increased growth performance, corrected liver functions and antioxidant enzymes levels in liver, and mitigated the lameness in broiler chickens. In conclusion, icariin administration recovered GP size, normalized performance and prevented lameness significantly. Therefore, icariin treatments are encouraged to reduce the incidence of TD in broiler chickens.
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Affiliation(s)
- Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Khalid Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,University College of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Kun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Mujeeb U Rehman
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xiong Jiang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Shucheng Huang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lei Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lihong Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xiaole Tong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Fazul Nabi
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Muhammad K Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Muhammad Shahzad
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,University College of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, China
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182
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Tasaki E, Kobayashi K, Matsuura K, Iuchi Y. Long-Lived Termite Queens Exhibit High Cu/Zn-Superoxide Dismutase Activity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5127251. [PMID: 29636846 PMCID: PMC5831368 DOI: 10.1155/2018/5127251] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/08/2018] [Indexed: 01/11/2023]
Abstract
In most organisms, superoxide dismutases (SODs) are among the most effective antioxidant enzymes that regulate the reactive oxygen species (ROS) generated by oxidative energy metabolism. ROS are considered main proximate causes of aging. However, it remains unclear if SOD activities are associated with organismal longevity. The queens of eusocial insects, such as termites, ants, and honeybees, exhibit extraordinary longevity in comparison with the nonreproductive castes, such as workers. Therefore, the queens are promising candidates to study the underlying mechanisms of aging. Here, we found that queens have higher Cu/Zn-SOD activity than nonreproductive individuals of the termite Reticulitermes speratus. We identified three Cu/Zn-SOD sequences and one Mn-SOD sequence by RNA sequencing in R. speratus. Although the queens showed higher Cu/Zn-SOD activity than the nonreproductive individuals, there were no differences in their expression levels of the Cu/Zn-SOD genes RsSOD1 and RsSOD3A. Copper (Cu2+ and Cu+) is an essential cofactor for Cu/Zn-SOD enzyme activity, and the queens had higher concentrations of copper than the workers. These results suggest that the high Cu/Zn-SOD activity of termite queens is related to their high levels of the cofactor rather than gene expression. This study highlights that Cu/Zn-SOD activity contributes to extraordinary longevity in termites.
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Affiliation(s)
- Eisuke Tasaki
- Laboratory of Insect Ecology, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Kyoto 606-8502, Japan
- Department of Applied Bioresources Chemistry, The United Graduate School of Agriculture, Tottori University, 4-101 Koyamacho-minami, Tottori 680-8553, Japan
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Kazuya Kobayashi
- Hokkaido Forest Research Station, Field Science Education and Research Center, Kyoto University, 553 Tawa Shibecha-cho Kawakami-gun, Hokkaido 088-2339, Japan
| | - Kenji Matsuura
- Laboratory of Insect Ecology, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Kyoto 606-8502, Japan
| | - Yoshihito Iuchi
- Department of Applied Bioresources Chemistry, The United Graduate School of Agriculture, Tottori University, 4-101 Koyamacho-minami, Tottori 680-8553, Japan
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
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183
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Reactive Oxygen Species in Chronic Obstructive Pulmonary Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5730395. [PMID: 29599897 PMCID: PMC5828402 DOI: 10.1155/2018/5730395] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 12/23/2017] [Accepted: 01/01/2018] [Indexed: 12/12/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) includes chronic bronchitis and emphysema. Environmental exposure, primarily cigarette smoking, can cause high oxidative stress and is the main factor of COPD development. Cigarette smoke also contributes to the imbalance of oxidant/antioxidant due to exogenous reactive oxygen species (ROS). Moreover, endogenously released ROS during the inflammatory process and mitochondrial dysfunction may contribute to this disease progression. ROS and reactive nitrogen species (RNS) can oxidize different biomolecules such as DNA, proteins, and lipids leading to epithelial cell injury and death. Various detoxifying enzymes and antioxidant defense systems can be involved in ROS removal. In this review, we summarize the main findings regarding the biological role of ROS, which may contribute to COPD development, and cytoprotective mechanisms against this disease progression.
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184
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Xing J, Lu J, Liu J, Li J. Local Injections of Superoxide Dismutase Attenuate the Exercise Pressor Reflex in Rats with Femoral Artery Occlusion. Front Physiol 2018; 9:39. [PMID: 29456512 PMCID: PMC5801590 DOI: 10.3389/fphys.2018.00039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/11/2018] [Indexed: 12/26/2022] Open
Abstract
The exercise pressor reflex is amplified in patients with peripheral artery disease (PAD) and in an experimental PAD model of rats induced by femoral artery occlusion. Heightened blood pressure worsens the restricted blood flow directed to the limbs in this disease. The purpose of this study was to determine the role played by muscle oxidative stress in regulating the augmented pressor response to static exercise in PAD. We hypothesized that limb ischemia impairs muscle superoxide dismutase (SOD) thereby leading to abnormal autonomic responsiveness observed in PAD animals, and a chronic compensation of SOD for anti-oxidation improves the exaggerated exercise pressor reflex. Our data show that femoral occlusion decreased the protein levels of SOD in ischemic muscle as compared with control muscle. Downregulation of SOD appeared to a greater degree in the oxidative (red) muscle than in the glycolytic (white) muscle under the condition of muscle ischemia. In addition, the exercise pressor response was assessed during electrically induced static contraction. The data demonstrates that the enhancement of the exercise pressor reflex was significantly attenuated after tempol (a mimetic of SOD, 30 mg over a period of 72 h) was administered into the occluded hindlimb. In the occluded rats, mean arterial pressure (MAP) response was 26 ± 3 mmHg with no tempol and 12 ± 2 mmHg with tempol application (P < 0.05 vs. group with no tempol; n = 6 in each group). There were no differences in muscle tension development (time-tension index: 12.1 ± 1.2 kgs with no tempol and 13.5 ± 1.1 kgs with tempol; P > 0.05 between groups). In conclusion, SOD is lessened in the ischemic muscles and supplement of SOD improves the amplified exercise pressor reflex, which is likely beneficial to the restricted blood flow to the limbs in PAD.
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Affiliation(s)
- Jihong Xing
- Pennsylvania State Heart and Vascular Institute, The Pennsylvania State University College of Medicine, Hershey, PA, United States
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, China
| | - Jian Lu
- Pennsylvania State Heart and Vascular Institute, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Jiahao Liu
- Pennsylvania State Heart and Vascular Institute, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Jianhua Li
- Pennsylvania State Heart and Vascular Institute, The Pennsylvania State University College of Medicine, Hershey, PA, United States
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185
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Azadmanesh J, Borgstahl GEO. A Review of the Catalytic Mechanism of Human Manganese Superoxide Dismutase. Antioxidants (Basel) 2018; 7:antiox7020025. [PMID: 29385710 PMCID: PMC5836015 DOI: 10.3390/antiox7020025] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 01/13/2018] [Accepted: 01/26/2018] [Indexed: 12/15/2022] Open
Abstract
Superoxide dismutases (SODs) are necessary antioxidant enzymes that protect cells from reactive oxygen species (ROS). Decreased levels of SODs or mutations that affect their catalytic activity have serious phenotypic consequences. SODs perform their bio-protective role by converting superoxide into oxygen and hydrogen peroxide by cyclic oxidation and reduction reactions with the active site metal. Mutations of SODs can cause cancer of the lung, colon, and lymphatic system, as well as neurodegenerative diseases such as Parkinson's disease and amyotrophic lateral sclerosis. While SODs have proven to be of significant biological importance since their discovery in 1968, the mechanistic nature of their catalytic function remains elusive. Extensive investigations with a multitude of approaches have tried to unveil the catalytic workings of SODs, but experimental limitations have impeded direct observations of the mechanism. Here, we focus on human MnSOD, the most significant enzyme in protecting against ROS in the human body. Human MnSOD resides in the mitochondrial matrix, the location of up to 90% of cellular ROS generation. We review the current knowledge of the MnSOD enzymatic mechanism and ongoing studies into solving the remaining mysteries.
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Affiliation(s)
- Jahaun Azadmanesh
- Department of Biochemistry and Molecular Biology, 985870 Nebraska Medical Center, Omaha, NE 68198-5870, USA.
| | - Gloria E O Borgstahl
- Department of Biochemistry and Molecular Biology, 985870 Nebraska Medical Center, Omaha, NE 68198-5870, USA.
- Eppley Institute for Cancer and Allied Diseases, 986805 Nebraska Medical Center, Omaha, NE 68198-6805, USA.
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186
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Burjanadze G, Shengelia M, Dachanidze N, Mikadze M, Menabde K, Koshoridze N. Creatine–facilitated protection of stress caused by disrupted circadian rhythm. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2017.1333198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- George Burjanadze
- Faculty of Exact and Natural Sciences, Department of Biology, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | - Mariam Shengelia
- Faculty of Exact and Natural Sciences, Department of Biology, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | - Natalia Dachanidze
- Faculty of Exact and Natural Sciences, Department of Biology, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | - Mariam Mikadze
- US MD Program, Tbilisi State Medical University, Tbilisi, Georgia
| | - Ketevan Menabde
- Faculty of Exact and Natural Sciences, Department of Biology, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | - Nana Koshoridze
- Faculty of Exact and Natural Sciences, Department of Biology, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
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187
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Hooe SL, Rheingold AL, Machan CW. Electrocatalytic Reduction of Dioxygen to Hydrogen Peroxide by a Molecular Manganese Complex with a Bipyridine-Containing Schiff Base Ligand. J Am Chem Soc 2018; 140:3232-3241. [PMID: 29216711 DOI: 10.1021/jacs.7b09027] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The synthesis and electrocatalytic reduction of dioxygen by a molecular manganese(III) complex with a tetradentate dianionic bipyridine-based ligand is reported. Electrochemical characterization indicates a Nernstian dependence on the added proton source for the reduction of Mn(III) to Mn(II). The resultant species is competent for the reduction of dioxygen to H2O2 with 81 ± 4% Faradaic efficiency. Mechanistic studies suggest that the catalytically active species has been generated through the interaction of the added proton donor and the parent Mn complex, resulting in the protonation of a coordinated phenolate moiety following the single-electron reduction, generating a neutral species with a vacant coordination site at the metal center. As a consequence, the active catalyst has a pendent proton source in close proximity to the active site for subsequent intramolecular reactions.
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Affiliation(s)
- Shelby L Hooe
- Department of Chemistry , University of Virginia , McCormick Road P.O. Box 400319, Charlottesville , Virginia 22904-4319 , United States
| | - Arnold L Rheingold
- Department of Chemistry and Biochemistry , University of California, San Diego , La Jolla , California 92093-0358 , United States
| | - Charles W Machan
- Department of Chemistry , University of Virginia , McCormick Road P.O. Box 400319, Charlottesville , Virginia 22904-4319 , United States
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188
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Ribić VR, Stojanović SĐ, Zlatović MV. Anion–π interactions in active centers of superoxide dismutases. Int J Biol Macromol 2018; 106:559-568. [DOI: 10.1016/j.ijbiomac.2017.08.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/06/2017] [Accepted: 08/07/2017] [Indexed: 01/09/2023]
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189
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Tsai CL, Tainer JA. Robust Production, Crystallization, Structure Determination, and Analysis of [Fe-S] Proteins: Uncovering Control of Electron Shuttling and Gating in the Respiratory Metabolism of Molybdopterin Guanine Dinucleotide Enzymes. Methods Enzymol 2017; 599:157-196. [PMID: 29746239 DOI: 10.1016/bs.mie.2017.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
[Fe-S] clusters are essential cofactors in all domains of life. They play many biological roles due to their unique abilities for electron transfer and conformational control. Yet, producing and analyzing Fe-S proteins can be difficult and even misleading if not done anaerobically. Due to unique redox properties of [Fe-S] clusters and their oxygen sensitivity, they pose multiple challenges and can lose enzymatic activity or cause their component proteins to be structurally disordered due to [Fe-S] cluster oxidation and loss in air. Here we highlight tested protocols and strategies enabling efficient and stable [Fe-S] protein production, purification, crystallization, X-ray diffraction data collection, and structure determination. From multiple high-resolution anaerobic crystal structures, we furthermore analyze exemplary data defining [Fe-S] clusters, substrate entry, and product exit for the functional oxidation states of type II molybdo-bis(molybdopterin guanine dinucleotide) (Mo-bisMGD) enzymes. Notably, these enzymes perform electron shuttling between quinone pools and specific substrates to catalyze respiratory metabolism. The identified structure-activity relationships for this enzyme class have broad implications germane to perchlorate environments on Earth and Mars extending to an alternative mechanism underlying metabolic origins for the evolution of the oxygen atmosphere. Integrated structural analyses of type II Mo-bisMGD enzymes unveil novel distinctive shared molecular mechanisms for dynamic control of substrate entry and product release gated by hydrophobic residues. Collective findings support a prototypic model for type II Mo-bisMGD enzymes including insights for a fundamental molecular mechanistic understanding of selectivity and regulation by a conformationally gated channel with general implications for [Fe-S] cluster respiratory enzymes.
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Affiliation(s)
- Chi-Lin Tsai
- The University of Texas M. D. Anderson Cancer Center, Houston, TX, United States
| | - John A Tainer
- The University of Texas M. D. Anderson Cancer Center, Houston, TX, United States; Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, United States.
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190
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Robinett NG, Peterson RL, Culotta VC. Eukaryotic copper-only superoxide dismutases (SODs): A new class of SOD enzymes and SOD-like protein domains. J Biol Chem 2017; 293:4636-4643. [PMID: 29259135 DOI: 10.1074/jbc.tm117.000182] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The copper-containing superoxide dismutases (SODs) represent a large family of enzymes that participate in the metabolism of reactive oxygen species by disproportionating superoxide anion radical to oxygen and hydrogen peroxide. Catalysis is driven by the redox-active copper ion, and in most cases, SODs also harbor a zinc at the active site that enhances copper catalysis and stabilizes the protein. Such bimetallic Cu,Zn-SODs are widespread, from the periplasm of bacteria to virtually every organelle in the human cell. However, a new class of copper-containing SODs has recently emerged that function without zinc. These copper-only enzymes serve as extracellular SODs in specific bacteria (i.e. Mycobacteria), throughout the fungal kingdom, and in the fungus-like oomycetes. The eukaryotic copper-only SODs are particularly unique in that they lack an electrostatic loop for substrate guidance and have an unusual open-access copper site, yet they can still react with superoxide at rates limited only by diffusion. Copper-only SOD sequences similar to those seen in fungi and oomycetes are also found in the animal kingdom, but rather than single-domain enzymes, they appear as tandem repeats in large polypeptides we refer to as CSRPs (copper-only SOD-repeat proteins). Here, we compare and contrast the Cu,Zn versus copper-only SODs and discuss the evolution of copper-only SOD protein domains in animals and fungi.
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Affiliation(s)
- Natalie G Robinett
- Department of Biochemistry and Molecular Biology, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205
| | - Ryan L Peterson
- Department of Biochemistry and Molecular Biology, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205
| | - Valeria C Culotta
- Department of Biochemistry and Molecular Biology, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205.
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191
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Tyagi S, Sharma S, Taneja M, Shumayla, Kumar R, Sembi JK, Upadhyay SK. Superoxide dismutases in bread wheat ( Triticum aestivum L.): Comprehensive characterization and expression analysis during development and, biotic and abiotic stresses. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.aggene.2017.08.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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192
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Mera-Adasme R, Erdmann H, Bereźniak T, Ochsenfeld C. Destabilization of the metal site as a hub for the pathogenic mechanism of five ALS-linked mutants of copper, zinc superoxide dismutase. Metallomics 2017; 8:1141-1150. [PMID: 27603566 DOI: 10.1039/c6mt00085a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a lethal neurodegenerative disease, with no effective pharmacological treatment. Its pathogenesis is unknown, although a subset of the cases is linked to genetic mutations. A significant fraction of the mutations occur in one protein, copper, zinc superoxide dismutase (SOD1). The toxic function of mutant SOD1 has not been elucidated, but damage to the metal site of the protein is believed to play a major role. In this work, we study the electrostatic loop of SOD1, which we had previously proposed to work as a "solvent seal" isolating the metal site from water molecules. Out of the five contact points identified between the electrostatic loop and its dock in the rest of the protein, three points were found to be affected by ALS-linked mutations, with a total of five mutations identified. The effect of the five mutations was studied using methods of computational chemistry. We found that four of the mutations destabilize the proposed solvent seal, while the fifth mutation directly affects the metal-site stability. In the two contact points unaffected by ALS-linked mutations, the side chains of the residues were not found to play a stabilizing role. Our results show that the docking of the electrostatic loop to the rest of SOD1 plays a role in ALS pathogenesis, in support of that structure acting as a solvent barrier for the metal site. The results provide a unified pathogenic mechanism for five different ALS-linked mutations of SOD1.
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Affiliation(s)
- Raúl Mera-Adasme
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
| | - Hannes Erdmann
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
| | - Tomasz Bereźniak
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
| | - Christian Ochsenfeld
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
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193
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Yin J, Han L, Cong W. Alpinumisoflavone rescues glucocorticoid-induced apoptosis of osteocytes via suppressing Nox2-dependent ROS generation. Pharmacol Rep 2017; 70:270-276. [PMID: 29477034 DOI: 10.1016/j.pharep.2017.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/30/2017] [Accepted: 11/03/2017] [Indexed: 01/13/2023]
Abstract
BACKGROUND Long term use of glucocorticoids is one of the most common causes of secondary osteoporosis. Osteocyte, the most abundant cell type in bone, coordinates the function of osteoblast and osteoclast. This study evaluates the protective effect of alpinumisoflavone (AIF), a naturally occurring flavonoid compound, on dexamethasone (Dex)-induced apoptosis of osteocytes. METHODS MLO-Y4 cell was used as a cell model. The effect of AIF on the cell viability was assessed by MTT assay. Apoptosis of MYL-Y4 cells was determined by DNA fragment detection ELISA kit and flow cytometry. Intracellular ROS level was determined by DCFH-DA staining. mRNA and protein expression of target genes were determined by qRT-PCR and western blot, respectively. RESULTS AIF effectively protected MLO-Y4 cells against Dex-induced apoptosis, which was associated with attenuation of Dex-induced ROS generation in MLO-Y4 cells. Furthermore, our data indicated that the expression of NAD(P)H oxidase 2 (Nox2) was suppressed by AIF, which in turn mediated the attenuating effect on Dex-induced ROS generation and apoptosis in MLO-Y4 cells. Moreover, our results showed that AIF modulated the expression of Nox2 by activating AMPK signaling. CONCLUSION AIF activated AMPK-dependent Nox2 signaling pathway to suppress Dex-induced ROS production in cultured osteocytes, which might explain its anti-apoptotic effect. These results indicate that activation of AMPK pathway by AIF could have beneficial effects on bone damage induced by excessive oxidative stress and osteocyte apoptosis.
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Affiliation(s)
- Jun Yin
- Qilu Hospital of Shandong University, Qingdao, Shandong, China
| | - Leixiang Han
- Qilu Hospital of Shandong University, Qingdao, Shandong, China
| | - Wei Cong
- Qilu Hospital of Shandong University, Qingdao, Shandong, China.
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194
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Griess B, Tom E, Domann F, Teoh-Fitzgerald M. Extracellular superoxide dismutase and its role in cancer. Free Radic Biol Med 2017; 112:464-479. [PMID: 28842347 PMCID: PMC5685559 DOI: 10.1016/j.freeradbiomed.2017.08.013] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/16/2017] [Accepted: 08/18/2017] [Indexed: 12/19/2022]
Abstract
Reactive oxygen species (ROS) are increasingly recognized as critical determinants of cellular signaling and a strict balance of ROS levels must be maintained to ensure proper cellular function and survival. Notably, ROS is increased in cancer cells. The superoxide dismutase family plays an essential physiological role in mitigating deleterious effects of ROS. Due to the compartmentalization of ROS signaling, EcSOD, the only superoxide dismutase in the extracellular space, has unique characteristics and functions in cellular signal transduction. In comparison to the other two intracellular SODs, EcSOD is a relatively new comer in terms of its tumor suppressive role in cancer and the mechanisms involved are less well understood. Nevertheless, the degree of differential expression of this extracellular antioxidant in cancer versus normal cells/tissues is more pronounced and prevalent than the other SODs. A significant association of low EcSOD expression with reduced cancer patient survival further suggests that loss of extracellular redox regulation promotes a conducive microenvironment that favors cancer progression. The vast array of mechanisms reported in mediating deregulation of EcSOD expression, function, and cellular distribution also supports that loss of this extracellular antioxidant provides a selective advantage to cancer cells. Moreover, overexpression of EcSOD inhibits tumor growth and metastasis, indicating a role as a tumor suppressor. This review focuses on the current understanding of the mechanisms of deregulation and tumor suppressive function of EcSOD in cancer.
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Affiliation(s)
- Brandon Griess
- Department of Biochemistry and Molecular Biology, Buffett Cancer Center, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Eric Tom
- Department of Biochemistry and Molecular Biology, Buffett Cancer Center, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Frederick Domann
- Free Radical and Radiation Biology Program, Radiation Oncology, University of Iowa, Iowa, IA 52242, United States
| | - Melissa Teoh-Fitzgerald
- Department of Biochemistry and Molecular Biology, Buffett Cancer Center, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, United States.
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195
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Leng X, Wang P, Zhu X, Li X, Zheng T, Shangguan L, Fang J. Ectopic expression of CSD1 and CSD2 targeting genes of miR398 in grapevine is associated with oxidative stress tolerance. Funct Integr Genomics 2017; 17:697-710. [PMID: 28674744 DOI: 10.1007/s10142-017-0565-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 05/15/2017] [Accepted: 05/23/2017] [Indexed: 11/30/2022]
Abstract
MicroRNAs (miRNAs) are endogenous small RNAs of -21 nucleotides that play an important role in diverse plant physiological processes at the post-transcriptional level by directing mRNA cleavage or translational inhibition. Previous studies have indicated that down-regulation of miR398 in response to oxidative stress allows up-regulation of the two target genes, cytosolic CSD1 and chloroplastic CSD2 (copper/zinc superoxide dismutase), resulting in protecting the plants to tolerate oxidative stress. In this study, we provide evidence that grapevine miR398 (Vv-miR398), by regulating the expression of its target genes, VvCSD1 and VvCSD2, mediates responses of grapevine to copper (Cu) stress which have been magnified due to increase in Cu-containing pesticide application. The expression of Vv-miR398 was inhibited by different concentrations of Cu stress; on the other hand, there was a steady increase in the activity of VvCSD1 and VvCSD2 genes. The function of VvCSD1 and VvCSD2 under Cu stress was thoroughly examined by overexpressing the use of the VvCSD1 and VvCSD2 in transgenic tobacco (Nicotiana tabacum). We found that both the overexpressed transgenic lines had lower Cu sensitivity and higher Cu tolerance compared with the wild type. In addition, lower levels of ROS and higher levels of SOD activities were accumulated in the transgenic lines in comparison with the wild type under the higher Cu conditions. Furthermore, these transgenic tobacco lines also recorded a higher UV and salt tolerance than the WT plants. These results suggested that overexpressing the VvCSDs will enhance the ROS-scavenging systems and protect the plant against more oxidative damage. Also, more investigations in this line are needed that would provide significant improvements in our understanding the resistance of fruit crops to environmental stress.
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Affiliation(s)
- XiangPeng Leng
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Peipei Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xudong Zhu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaopeng Li
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ting Zheng
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lingfei Shangguan
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Jinggui Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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196
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Perera NCN, Godahewa GI, Lee S, Kim MJ, Hwang JY, Kwon MG, Hwang SD, Lee J. Manganese-superoxide dismutase (MnSOD), a role player in seahorse (Hippocampus abdominalis) antioxidant defense system and adaptive immune system. FISH & SHELLFISH IMMUNOLOGY 2017; 68:435-442. [PMID: 28743628 DOI: 10.1016/j.fsi.2017.07.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/17/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
Manganese superoxide dismutase (MnSOD) is a metaloenzyme that catalyzes dismutation of the hazardous superoxide radicals into less hazardous H2O2 and H2O. Here, we identified a homolog of MnSOD from big belly seahorse (Hippocampus abdominalis; HaMnSOD) and characterized its structural and functional features. HaMnSOD transcript possessed an open reading frame (ORF) of 672 bp which codes for a peptide of 223 amino acids. Pairwise alignment showed that HaMnSOD shared highest identity with rock bream MnSOD. Results of the phylogenetic analysis of HaMnSOD revealed a close proximity with rock bream MnSOD which was consistent with the result of homology alignment. The intense expression of HaMnSOD was observed in the ovary, followed by the heart and the brain. Further, immune related responses of HaMnSOD towards pathogenic stimulation were observed through bacterial and viral challenges. Highest HaMnSOD expression in response to stimulants Edwardsiella tarda, Streptococcus iniae, lipopolysaccharide (LPS), and polyinosinic-polycytidylic acid (Poly I:C) was observed in the late stage in the blood tissue. Xanthine/xanthine oxidase assay (XOD assay) indicated the ROS-scavenging ability of purified recombinant HaMnSOD (rHaMnSOD). The optimum conditions for the SOD activity of rHaMnSOD were pH 9 and the 25 °C. Collectively, the results obtained through the expressional analysis profiles and the functional assays provide insights into potential immune related and antioxidant roles of HaMnSOD in the big belly seahorse.
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Affiliation(s)
- N C N Perera
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - G I Godahewa
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Seongdo Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Myoung-Jin Kim
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Jee Youn Hwang
- Aquatic Disease Control Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Mun Gyeong Kwon
- Aquatic Disease Control Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Seong Don Hwang
- Aquatic Disease Control Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea.
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197
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Chen L, Watson C, Morsch M, Cole NJ, Chung RS, Saunders DN, Yerbury JJ, Vine KL. Improving the Delivery of SOD1 Antisense Oligonucleotides to Motor Neurons Using Calcium Phosphate-Lipid Nanoparticles. Front Neurosci 2017; 11:476. [PMID: 28912673 PMCID: PMC5582160 DOI: 10.3389/fnins.2017.00476] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 08/10/2017] [Indexed: 12/14/2022] Open
Abstract
Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disease affecting the upper and lower motor neurons in the motor cortex and spinal cord. Abnormal accumulation of mutant superoxide dismutase I (SOD1) in motor neurons is a pathological hallmark of some forms of the disease. We have shown that the orderly progression of the disease may be explained by misfolded SOD1 cell-to-cell propagation, which is reliant upon its active endogenous synthesis. Reducing the levels of SOD1 is therefore a promising therapeutic approach. Antisense oligonucleotides (ASOs) can efficiently silence proteins with gain-of-function mutations. However, naked ASOs have a short circulation half-life and are unable to cross the blood brain barrier (BBB) warranting the use of a drug carrier for effective delivery. In this study, calcium phosphate lipid coated nanoparticles (CaP-lipid NPs) were developed for delivery of SOD1 ASO to motor neurons. The most promising nanoparticle formulation (Ca/P ratio of 100:1), had a uniform spherical core-shell morphology with an average size of 30 nm, and surface charge (ζ-potential) of -4.86 mV. The encapsulation efficiency of ASO was 48% and stability studies found the particle to be stable over a period of 20 days. In vitro experiments demonstrated that the negatively charged ASO-loaded CaP-lipid NPs could effectively deliver SOD1-targeted ASO into a mouse motor neuron-like cell line (NSC-34) through endocytosis and significantly down-regulated SOD1 expression in HEK293 cells. The CaP-lipid NPs exhibited a pH-dependant dissociation, suggesting that that the acidification of lysosomes is the likely mechanism responsible for facilitating intracellular ASO release. To demonstrate tissue specific delivery and localization of these NPs we performed in vivo microinjections into zebrafish. Successful delivery of these NPs was confirmed for the zebrafish brain, the blood stream, and the spinal cord. These results suggest that CaP-lipid NPs could be an effective and safe delivery system for the improved delivery of SOD1 ASOs to motor neurons. Further in vivo evaluation in transgenic mouse models of SOD1 ALS are therefore warranted.
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Affiliation(s)
- Liyu Chen
- Illawarra Health and Medical Research InstituteWollongong, NSW, Australia
- Science Medicine and Health Faculty, Centre for Medical and Molecular Bioscience, School of Biological Sciences, University of WollongongWollongong, NSW, Australia
| | - Clare Watson
- Illawarra Health and Medical Research InstituteWollongong, NSW, Australia
- Science Medicine and Health Faculty, Centre for Medical and Molecular Bioscience, School of Biological Sciences, University of WollongongWollongong, NSW, Australia
| | - Marco Morsch
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie UniversitySydney, NSW, Australia
| | - Nicholas J. Cole
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie UniversitySydney, NSW, Australia
| | - Roger S. Chung
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie UniversitySydney, NSW, Australia
| | - Darren N. Saunders
- School of Medical Sciences, University of New South WalesSydney, NSW, Australia
| | - Justin J. Yerbury
- Science Medicine and Health Faculty, Centre for Medical and Molecular Bioscience, School of Biological Sciences, University of WollongongWollongong, NSW, Australia
| | - Kara L. Vine
- Illawarra Health and Medical Research InstituteWollongong, NSW, Australia
- Science Medicine and Health Faculty, Centre for Medical and Molecular Bioscience, School of Biological Sciences, University of WollongongWollongong, NSW, Australia
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198
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Bashandy SAE, Alaamer A, Moussa SAA, Omara EA. Role of zinc oxide nanoparticles in alleviating hepatic fibrosis and nephrotoxicity induced by thioacetamide in rats. Can J Physiol Pharmacol 2017; 96:337-344. [PMID: 28813612 DOI: 10.1139/cjpp-2017-0247] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The present research studied the influence of zinc oxide nanoparticles (ZnO-NPs; 5, 7.5, and 10 mg/kg, i.p.) on the liver and kidney injuries motivated by thioacetamide (TAA; 100 mg/kg, i.p.). Each treatment was carried out 3 times per week for 8 weeks. ZnO-NPs relieved the decrease of hepatic or renal reduced glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD) induced by TAA. Moreover, ZnO-NPs lowered tissue malondialdehyde (MDA, an indicator for lipid peroxidation). TAA treatment led to a significant increase in plasma inflammatory markers (TNF-α, IL-6), liver enzymes (gamma-glutamyltransferase (GGT), aspartate aminotransferase (AST), alanine aminotransferase (ALT), and kidney function parameters (creatinine, urea, uric acid). However, these parameters were reduced after treatment with ZnO-NPs. In addition, the hepatic fibrosis markers, hydroxyproline level, and α-smooth muscle actin immunopositive stain were lowered by ZnO-NPs. The protective effect of ZnO-NPs in respect to biochemical changes was also confirmed by histopathological and immunohistochemistry studies in the liver and kidney sections. Our results suggested that ZnO-NPs may attenuate TAA toxicity via suppression of oxidative stress.
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Affiliation(s)
- Samir A E Bashandy
- a Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St. (former EL Tahir St.), Dokki, Giza, Egypt. P.O.12622
| | - Abdulaziz Alaamer
- b Committee of Radiation and Environmental Pollution Protection (CREPP), Department of Physics, College of Science, Al-Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Sherif A Abdelmottaleb Moussa
- b Committee of Radiation and Environmental Pollution Protection (CREPP), Department of Physics, College of Science, Al-Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia.,c Biophysics Group, Biochemistry Department, Genetic Engineering and Biotechnology Division, National Research Centre, 33 EL Bohouth St. (former EL Tahir St.), Dokki, Giza, Egypt P.O.12622
| | - Enayat A Omara
- d Department of Pathology, Medical Division, National Research Centre, 33 EL Bohouth St. (former EL Tahir St.), Dokki, Giza, Egypt. P.O.12622
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199
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Dasmeh P, Kepp KP. Superoxide dismutase 1 is positively selected to minimize protein aggregation in great apes. Cell Mol Life Sci 2017; 74:3023-3037. [PMID: 28389720 PMCID: PMC11107616 DOI: 10.1007/s00018-017-2519-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/17/2017] [Accepted: 04/03/2017] [Indexed: 12/14/2022]
Abstract
Positive (adaptive) selection has recently been implied in human superoxide dismutase 1 (SOD1), a highly abundant antioxidant protein with energy signaling and antiaging functions, one of very few examples of direct selection on a human protein product (exon); the molecular drivers of this selection are unknown. We mapped 30 extant SOD1 sequences to the recently established mammalian species tree and inferred ancestors, key substitutions, and signatures of selection during the protein's evolution. We detected elevated substitution rates leading to great apes (Hominidae) at ~1 per 2 million years, significantly higher than in other primates and rodents, although these paradoxically generally evolve much faster. The high evolutionary rate was partly due to relaxation of some selection pressures and partly to distinct positive selection of SOD1 in great apes. We then show that higher stability and net charge and changes at the dimer interface were selectively introduced upon separation from old world monkeys and lesser apes (gibbons). Consequently, human, chimpanzee and gorilla SOD1s have a net charge of -6 at physiological pH, whereas the closely related gibbons and macaques have -3. These features consistently point towards selection against the malicious aggregation effects of elevated SOD1 levels in long-living great apes. The findings mirror the impact of human SOD1 mutations that reduce net charge and/or stability and cause ALS, a motor neuron disease characterized by oxidative stress and SOD1 aggregates and triggered by aging. Our study thus marks an example of direct selection for a particular chemical phenotype (high net charge and stability) in a single human protein with possible implications for the evolution of aging.
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Affiliation(s)
- Pouria Dasmeh
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Department of Biochemistry and Cedergren Center for Bioinformatics and Genomics, Faculty of Medicine, University of Montreal, 2900 Edouard-Montpetit, Montreal, QC, H3T 1J4, Canada
| | - Kasper P Kepp
- Technical University of Denmark, DTU Chemistry, 2800, Kongens Lyngby, Denmark.
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200
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Kleniewska P, Pawliczak R. The participation of oxidative stress in the pathogenesis of bronchial asthma. Biomed Pharmacother 2017; 94:100-108. [PMID: 28756367 DOI: 10.1016/j.biopha.2017.07.066] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 12/11/2022] Open
Abstract
Reactive oxygen species are produced during oxygen reduction and are characterized by high reactivity. They participate in many important physiological processes, but if produced in high concentrations they lead to oxidative stress development and disturb pro-oxidative/anti-oxidative balance towards the oxidation reaction - leading to damage of lipids, proteins, carbohydrates or nucleic acids. Asthma is a chronic inflammatory disease of the airways of various pathogenesis and clinical symptoms, prevalence in recent years has increased significantly. Recently published literature point out the involvement of reactive oxygen species in the pathogenesis of asthma. Changes in the protein and lipid oxidation lead, among others, to pathological changes in the respiratory epithelial cells, an increase in vascular permeability, mucus overproduction, smooth muscle contraction or airway hyperresponsiveness (AHR). The aim of this study is to present the current state of knowledge on the influence of oxidative stress parameters on asthma development.
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Affiliation(s)
- Paulina Kleniewska
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, 7/9 Zeligowskiego St, bldg 2 Rm 122, 90-752 Lodz, Poland
| | - Rafał Pawliczak
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, 7/9 Zeligowskiego St, bldg 2 Rm 122, 90-752 Lodz, Poland.
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