151
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Zhang L, Liu R, Cheng Y, Xing L, Zhou G, Zhang W. Effects of protein S-nitrosylation on the glycogen metabolism in postmortem pork. Food Chem 2019; 272:613-618. [DOI: 10.1016/j.foodchem.2018.08.103] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 01/05/2023]
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152
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Dyer RR, Ford KI, Robinson RAS. The roles of S-nitrosylation and S-glutathionylation in Alzheimer's disease. Methods Enzymol 2019; 626:499-538. [PMID: 31606089 PMCID: PMC6908309 DOI: 10.1016/bs.mie.2019.08.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Alzheimer's disease (AD) is a debilitating dementia with complex pathophysiological alterations including modifications to endogenous cysteine. S-nitrosylation (SNO) is a well-studied posttranslational modification (PTM) in the context of AD while S-glutathionylation (PSSG) remains less studied. Excess reactive oxygen and reactive nitrogen species (ROS/RNS) directly or indirectly generate SNO and PSSG. SNO is dysregulated in AD and plays a pervasive role in processes such as protein function, cell signaling, metabolism, and apoptosis. Despite some studies into the role of SNO in AD, multiple identified SNO proteins lack deep investigation and SNO modifications outside of brain tissues are limited, leaving the full role of SNO in AD to be elucidated. PSSG homeostasis is perturbed in AD and may affect a myriad of cellular processes. Here we overview the role of nitric oxide (NO) in AD, discuss proteomic methodologies to investigate SNO and PSSG, and review SNO and PSSG in AD. A more thorough understanding of SNO, PSSG, and other cysteinyl PTMs in AD will be helpful for the development of novel therapeutics against neurodegenerative diseases.
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Affiliation(s)
- Ryan R Dyer
- Department of Chemistry, Vanderbilt University, Nashville, TN, United States
| | - Katarena I Ford
- Department of Chemistry, Vanderbilt University, Nashville, TN, United States
| | - Renã A S Robinson
- Department of Chemistry, Vanderbilt University, Nashville, TN, United States; Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Memory & Alzheimer's Center, Nashville, TN, United States; Vanderbilt Institute of Chemical Biology, Nashville, TN, United States; Vanderbilt Brain Institute, Nashville, TN, United States.
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153
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Kouroussis E, Adhikari B, Zivanovic J, Filipovic MR. Measurement of Protein Persulfidation: Improved Tag-Switch Method. Methods Mol Biol 2019; 2007:37-50. [PMID: 31148105 DOI: 10.1007/978-1-4939-9528-8_4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hydrogen sulfide (H2S) is an endogenously produced signaling gasotransmitter, generated by the enzymes cystathionine γ-lyase, cystathionine β-synthase, and 3-mercaptopyruvate sulfurtransferase. The involvement of H2S in numerous physiological, as well as pathophysiological conditions, was established over the past decade. However, the exact mechanism(s) of regulation of the biological functions by H2S are under active investigations. It is proposed that the oxidative posttranslational modification of protein cysteine residues, known as persulfidation, could be the main mechanism of action of H2S. Protein persulfides show similar reactivity to thiols, which represents one of the main obstacles in the development of a reliable method for detection of this specific protein modification. Subsequently, having a selective method for persulfide detection is of utmost importance in order to fully understand the physiological and pathophysiological role of H2S. Several methods have been proposed for the detection of protein persulfidation, all of which are highlighted in this chapter. Furthermore, we provide a detailed description and protocol for the first selective persulfide labeling method, a tag-switch method, developed in our group.
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Affiliation(s)
- Emilia Kouroussis
- Université de Bordeaux, IBGC, CNRS UMR 5095, Bordeaux, France
- Institut de Biochimie et Génétique Cellulaires, CNRS, UMR 5095, Bordeaux, France
| | - Bikash Adhikari
- Université de Bordeaux, IBGC, CNRS UMR 5095, Bordeaux, France
- Institut de Biochimie et Génétique Cellulaires, CNRS, UMR 5095, Bordeaux, France
| | - Jasmina Zivanovic
- Université de Bordeaux, IBGC, CNRS UMR 5095, Bordeaux, France
- Institut de Biochimie et Génétique Cellulaires, CNRS, UMR 5095, Bordeaux, France
| | - Milos R Filipovic
- Université de Bordeaux, IBGC, CNRS UMR 5095, Bordeaux, France.
- Institut de Biochimie et Génétique Cellulaires, CNRS, UMR 5095, Bordeaux, France.
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154
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Williams E, Whiteman M, Wood ME, Wilson ID, Ladomery MR, Allainguillaume J, Teklic T, Lisjak M, Hancock JT. Investigating ROS, RNS, and H 2S-Sensitive Signaling Proteins. Methods Mol Biol 2019; 1990:27-42. [PMID: 31148060 DOI: 10.1007/978-1-4939-9463-2_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The modification of proteins is a key way to alter their activity and function. Often thiols, cysteine residues, on proteins are attractive targets for such modification. Assuming that the thiol group is accessible then reactions may take place with a range of chemicals found in cells. These may include reactive oxygen species (ROS), such as hydrogen peroxide (H2O2), reactive nitrogen species such as nitric oxide (NO), hydrogen sulfide (H2S), or glutathione. Such modifications often are instrumental to important cellular signaling processes, which ultimately result in modification of physiology of the organism. Therefore, there is a need to be able to identify such modifications. There are a variety of techniques to find proteins which may be altered in this way but here the focus is on two approaches: firstly, the use of fluorescent thiol derivatives and the subsequent use of mass spectrometry to identify the thiols involved; secondly the confirmation of such changes using biochemical assays and genetic mutants. The discussion will be based on the use of two model organisms: firstly the plant Arabidopsis thaliana (both as cell cultures and whole plants) and secondly the nematode worm Caenorhabditis elegans. However, these tools, as described, may be used in a much wider range of biological systems, including human and human tissue cultures.
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Affiliation(s)
- Eleanor Williams
- Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
- Horizon Discovery Ltd., Cambridge, UK
| | | | - Mark E Wood
- Geoffrey Pope Building, University of Exeter, Exeter, UK
| | - Ian D Wilson
- Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
| | - Michael R Ladomery
- Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
| | - Joel Allainguillaume
- Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
| | - Tihana Teklic
- Faculty of Agrobiotechnical Sciences, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Miro Lisjak
- Faculty of Agrobiotechnical Sciences, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - John T Hancock
- Department of Applied Sciences, University of the West of England, Bristol, UK.
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155
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Exogenous Nitric Oxide Donation During In Vitro Maturation Improves Embryonic Development after Parthenogenesis and Somatic Cell Nuclear Transfer in Pigs. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2018. [DOI: 10.12750/jet.2018.33.4.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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156
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Ferreira LT, Figueiredo AC, Orr B, Lopes D, Maiato H. Dissecting the role of the tubulin code in mitosis. Methods Cell Biol 2018; 144:33-74. [PMID: 29804676 DOI: 10.1016/bs.mcb.2018.03.040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mitosis is an essential process that takes place in all eukaryotes and involves the equal division of genetic material from a parental cell into two identical daughter cells. During mitosis, chromosome movement and segregation are orchestrated by a specialized structure known as the mitotic spindle, composed of a bipolar array of microtubules. The fundamental structure of microtubules comprises of α/β-tubulin heterodimers that associate head-to-tail and laterally to form hollow filaments. In vivo, microtubules are modified by abundant and evolutionarily conserved tubulin posttranslational modifications (PTMs), giving these filaments the potential for a wide chemical diversity. In recent years, the concept of a "tubulin code" has emerged as an extralayer of regulation governing microtubule function. A range of tubulin isoforms, each with a diverse set of PTMs, provides a readable code for microtubule motors and other microtubule-associated proteins. This chapter focuses on the complexity of tubulin PTMs with an emphasis on detyrosination and summarizes the methods currently used in our laboratory to experimentally manipulate these modifications and study their impact in mitosis.
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Affiliation(s)
- Luísa T Ferreira
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Ana C Figueiredo
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Bernardo Orr
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Danilo Lopes
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Helder Maiato
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Faculdade de Medicina, Universidade do Porto, Porto, Portugal.
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157
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Jeon AR, Kim JE. PDI Knockdown Inhibits Seizure Activity in Acute Seizure and Chronic Epilepsy Rat Models via S-Nitrosylation-Independent Thiolation on NMDA Receptor. Front Cell Neurosci 2018; 12:438. [PMID: 30524244 PMCID: PMC6261974 DOI: 10.3389/fncel.2018.00438] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 11/05/2018] [Indexed: 01/10/2023] Open
Abstract
Redox modulation and S-nitrosylation of cysteine residues are the post-translational modifications of N-methyl-D-aspartate receptor (NMDAR) to regulate its functionality. Recently, we have reported that protein disulfide isomerase (PDI) reduces disulfide bond (S-S) to free thiol (-SH) on NMDAR. Since PDI is a modulator of S-nitrosylation on various proteins, it is noteworthy whether PDI affects S-nitrosylation of NMDAR in acute seizure and chronic epilepsy models. In the present study, we found that acute seizures in response to pilocarpine and spontaneous seizures in chronic epilepsy rats led to the reduction in S-nitrosylated thiol (SNO-thiol)-to-total thiol ratio on NMDAR, while they elevated nitric oxide (NO) level and S-nitrosylation on NMDAR. N-nitro-L-arginine methyl ester (L-NAME, a non-selective NOS inhibitor) did not affect seizure activities in both models, although it decreased SNO-thiol levels on NMDAR. However, PDI knockdown effectively inhibited pilocarpine-induced acute seizures and spontaneous seizures in chronic epilepsy rats, accompanied by increasing the SNO-thiol-to-total thiol ratio on NMDAR due to diminishing the amounts of total thiols on GluN1 and GluN2A. Therefore, these findings indicate that PDI may not be a NO donor or a denitrosylase for NMDAR, and that PDI knockdown may inhibit seizure activity by the S-nitrosylation-independent thiolation on NMDAR.
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Affiliation(s)
- A Ran Jeon
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Ji-Eun Kim
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon, South Korea
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158
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Mitoproteomics: Tackling Mitochondrial Dysfunction in Human Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1435934. [PMID: 30533169 PMCID: PMC6250043 DOI: 10.1155/2018/1435934] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
Mitochondria are highly dynamic and regulated organelles that historically have been defined based on their crucial role in cell metabolism. However, they are implicated in a variety of other important functions, making mitochondrial dysfunction an important axis in several pathological contexts. Despite that conventional biochemical and molecular biology approaches have provided significant insight into mitochondrial functionality, innovative techniques that provide a global view of the mitochondrion are still necessary. Proteomics fulfils this need by enabling accurate, systems-wide quantitative analysis of protein abundance. More importantly, redox proteomics approaches offer unique opportunities to tackle oxidative stress, a phenomenon that is intimately linked to aging, cardiovascular disease, and cancer. In addition, cutting-edge proteomics approaches reveal how proteins exert their functions in complex interaction networks where even subtle alterations stemming from early pathological states can be monitored. Here, we describe the proteomics approaches that will help to deepen the role of mitochondria in health and disease by assessing not only changes to mitochondrial protein composition but also alterations to their redox state and how protein interaction networks regulate mitochondrial function and dynamics. This review is aimed at showing the reader how the application of proteomics approaches during the last 20 years has revealed crucial mitochondrial roles in the context of aging, neurodegenerative disorders, metabolic disease, and cancer.
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159
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Identification of S-nitrosylated proteins in postmortem pork muscle using modified biotin switch method coupled with isobaric tags. Meat Sci 2018; 145:431-439. [DOI: 10.1016/j.meatsci.2018.07.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/15/2018] [Accepted: 07/19/2018] [Indexed: 11/18/2022]
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160
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Okubo Y, Mikami Y, Kanemaru K, Iino M. Role of Endoplasmic Reticulum-Mediated Ca 2+ Signaling in Neuronal Cell Death. Antioxid Redox Signal 2018; 29:1147-1157. [PMID: 29361832 DOI: 10.1089/ars.2018.7498] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
SIGNIFICANCE Properly controlled intracellular Ca2+ dynamics is crucial for regulation of neuronal function and survival in the central nervous system. The endoplasmic reticulum (ER), a major intracellular Ca2+ store, plays a critical role as a source and sink for neuronal Ca2+. Recent Advances: Accumulating evidence indicates that disrupted ER Ca2+ signaling is involved in neuronal cell death under various pathological conditions, providing novel insight into neurodegenerative disease mechanisms. CRITICAL ISSUES We summarize current knowledge concerning the relationship between abnormal ER Ca2+ dynamics and neuronal cell death. We also introduce recent technical advances for probing ER intraluminal Ca2+ dynamics with unprecedented spatiotemporal resolution. FUTURE DIRECTIONS Further studies on ER Ca2+ signaling are expected to provide progress for unmet medical needs in neurodegenerative disease. Antioxid. Redox Signal. 29, 1147-1157.
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Affiliation(s)
- Yohei Okubo
- 1 Department of Pharmacology, Graduate School of Medicine, The University of Tokyo , Tokyo, Japan
| | - Yoshinori Mikami
- 2 Department of Physiology, School of Medicine, Faculty of Medicine, Toho University , Tokyo, Japan
| | - Kazunori Kanemaru
- 1 Department of Pharmacology, Graduate School of Medicine, The University of Tokyo , Tokyo, Japan .,3 Department of Cellular and Molecular Pharmacology, Nihon University School of Medicine , Tokyo, Japan
| | - Masamitsu Iino
- 3 Department of Cellular and Molecular Pharmacology, Nihon University School of Medicine , Tokyo, Japan
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161
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Cui B, Pan Q, Clarke D, Villarreal MO, Umbreen S, Yuan B, Shan W, Jiang J, Loake GJ. S-nitrosylation of the zinc finger protein SRG1 regulates plant immunity. Nat Commun 2018; 9:4226. [PMID: 30315167 PMCID: PMC6185907 DOI: 10.1038/s41467-018-06578-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 08/29/2018] [Indexed: 11/13/2022] Open
Abstract
Nitric oxide (NO) orchestrates a plethora of incongruent plant immune responses, including the reprograming of global gene expression. However, the cognate molecular mechanisms remain largely unknown. Here we show a zinc finger transcription factor (ZF-TF), SRG1, is a central target of NO bioactivity during plant immunity, where it functions as a positive regulator. NO accumulation promotes SRG1 expression and subsequently SRG1 occupies a repeated canonical sequence within target promoters. An EAR domain enables SRG1 to recruit the corepressor TOPLESS, suppressing target gene expression. Sustained NO synthesis drives SRG1 S-nitrosylation predominantly at Cys87, relieving both SRG1 DNA binding and transcriptional repression activity. Accordingly, mutation of Cys87 compromises NO-mediated control of SRG1-dependent transcriptional suppression. Thus, the SRG1-SNO formation may contribute to a negative feedback loop that attenuates the plant immune response. SRG1 Cys87 is evolutionary conserved and thus may be a target for redox regulation of ZF-TF function across phylogenetic kingdoms.
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Affiliation(s)
- Beimi Cui
- Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
- Key Laboratory of Biotechnology for Medicinal Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
- Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Qiaona Pan
- Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
- Key Laboratory of Biotechnology for Medicinal Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
- Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - David Clarke
- School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK
| | | | - Saima Umbreen
- Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Bo Yuan
- Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
- Key Laboratory of Biotechnology for Medicinal Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
| | - Weixing Shan
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jihong Jiang
- Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
- Key Laboratory of Biotechnology for Medicinal Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China
| | - Gary J Loake
- Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, P.R. China.
- Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK.
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162
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Abstract
The concept of cell signaling in the context of nonenzyme-assisted protein modifications by reactive electrophilic and oxidative species, broadly known as redox signaling, is a uniquely complex topic that has been approached from numerous different and multidisciplinary angles. Our Review reflects on five aspects critical for understanding how nature harnesses these noncanonical post-translational modifications to coordinate distinct cellular activities: (1) specific players and their generation, (2) physicochemical properties, (3) mechanisms of action, (4) methods of interrogation, and (5) functional roles in health and disease. Emphasis is primarily placed on the latest progress in the field, but several aspects of classical work likely forgotten/lost are also recollected. For researchers with interests in getting into the field, our Review is anticipated to function as a primer. For the expert, we aim to stimulate thought and discussion about fundamentals of redox signaling mechanisms and nuances of specificity/selectivity and timing in this sophisticated yet fascinating arena at the crossroads of chemistry and biology.
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Affiliation(s)
- Saba Parvez
- Department of Pharmacology and Toxicology, College of
Pharmacy, University of Utah, Salt Lake City, Utah, 84112, USA
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
| | - Marcus J. C. Long
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
| | - Jesse R. Poganik
- Ecole Polytechnique Fédérale de Lausanne,
Institute of Chemical Sciences and Engineering, 1015, Lausanne, Switzerland
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
| | - Yimon Aye
- Ecole Polytechnique Fédérale de Lausanne,
Institute of Chemical Sciences and Engineering, 1015, Lausanne, Switzerland
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
- Department of Biochemistry, Weill Cornell Medicine, New
York, New York, 10065, USA
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163
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Toth M. The other side of the coin: Hypersociability. GENES BRAIN AND BEHAVIOR 2018; 18:e12512. [PMID: 30101538 DOI: 10.1111/gbb.12512] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/18/2018] [Accepted: 08/07/2018] [Indexed: 12/29/2022]
Abstract
Affiliative social motivation and behavior, that is, sociability that includes attachment, prosocial behavior (sharing, caring and helping) and empathy (the ability to understand and share the feelings of others), has high variability in the human population, with a portion of people outside of the normal range. While psychiatric disorders and autism spectrum disorders are typically associated with a deficit in social behavior, the opposite trait of hypersociability and indiscriminate friendliness are exhibited by individual with specific neurodevelopmental disorders and following early adverse care. Here we discuss both genetic and environmental factors that cause or increase the risk for developing pathological hypersociability from human to rodent models.
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Affiliation(s)
- Miklos Toth
- Department of Pharmacology, Weill Cornell Medical College, New York, New York
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164
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Khan M, Dhammu TS, Singh I, Singh AK. Amelioration of spinal cord injury in rats by blocking peroxynitrite/calpain activity. BMC Neurosci 2018; 19:50. [PMID: 30103682 PMCID: PMC6090709 DOI: 10.1186/s12868-018-0450-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 08/07/2018] [Indexed: 01/09/2023] Open
Abstract
Background Spinal cord injury (SCI) is one of the leading causes of disability and chronic pain. In SCI-induced pathology, homeostasis of the nitric oxide (NO) metabolome is lost. Major NO metabolites such as S-nitrosoglutathione (GSNO) and peroxynitrite are reported to play pivotal roles in regulating the activities of key cysteine proteases, calpains. While peroxynitrite (a metabolite of NO and superoxide) up regulates the activities of calpains leading to neurodegeneration, GSNO (a metabolite of NO and glutathione) down regulates the activities of calpains leading to neuroprotection. In this study, effect of GSNO on locomotor function and pain threshold and their relationship with the levels of peroxynitrite and the activity of calpain in the injured spinal cord were investigated using a 2-week rat model of contusion SCI.
Results SCI animals were initially treated with GSNO at 2 h after the injury followed by a once daily dose of GSNO for 14 days. Locomotor function was evaluated by “Basso Beattie and Bresnahan (BBB) locomotor rating scale” and pain by mechanical allodynia. Peroxynitrite level, as expression of 3-nitrotyrosine (3-NT), calpain activity, as the degradation products of calpain substrate alpha II spectrin, and nNOS activity, as the expression phospho nNOS, were measured by western blot analysis. Treatment with GSNO improved locomotor function and mitigated pain. The treatment also reduced the levels of peroxynitrite (3-NT) and decreased activity of calpains. Reduced levels of peroxynitrite resulted from the GSNO-mediated inhibition of aberrant activity of neuronal nitric oxide synthase (nNOS). Conclusions The data indicates that higher levels of 3-NT and aberrant activities of nNOS and calpains correlated with SCI pathology and functional deficits. Treatment with GSNO improved locomotor function and mitigated mechanical allodynia acutely post-injury. Because GSNO shows potential to ameliorate experimental SCI, we discuss implications for GSNO therapy in clinical SCI research.
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Affiliation(s)
- Mushfiquddin Khan
- Department of Pediatrics, 508 Children's Research Institute, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC, 29425, USA.
| | - Tajinder S Dhammu
- Department of Pediatrics, 508 Children's Research Institute, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC, 29425, USA
| | - Inderjit Singh
- Department of Pediatrics, 508 Children's Research Institute, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC, 29425, USA.,Ralph H Johnson VA Medical Center, Charleston, SC, USA
| | - Avtar K Singh
- Ralph H Johnson VA Medical Center, Charleston, SC, USA.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
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165
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Khan M, Shunmugavel A, Dhammu TS, Khan H, Singh I, Singh AK. Combined treatment with GSNO and CAPE accelerates functional recovery via additive antioxidant activities in a mouse model of TBI. J Neurosci Res 2018; 96:1900-1913. [PMID: 30027580 DOI: 10.1002/jnr.24279] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 06/01/2018] [Accepted: 06/15/2018] [Indexed: 01/01/2023]
Abstract
Traumatic brain injury (TBI) is the major cause of physical disability and emotional vulnerability. Treatment of TBI is lacking due to its multimechanistic etiology, including derailed mitochondrial and cellular energy metabolism. Previous studies from our laboratory show that an endogenous nitric oxide (NO) metabolite S-nitrosoglutathione (GSNO) provides neuroprotection and improves neurobehavioral function via anti-inflammatory and anti-neurodegenerative mechanisms. To accelerate the rate and enhance the degree of recovery, we investigated combining GSNO with caffeic acid phenethyl ester (CAPE), a potent antioxidant compound, using a male mouse model of TBI, controlled cortical impact in mice. The combination therapy accelerated improvement of cognitive and depressive-like behavior compared with GSNO or CAPE monotherapy. Separately, both GSNO and CAPE improved mitochondrial integrity/function and decreased oxidative damage; however, the combination therapy had greater effects on Drp1 and MnSOD. Additionally, while CAPE alone activated AMPK, this activation was heightened in combination with GSNO. CAPE treatment of normal animals also significantly increased the expression levels of pAMPK, pACC (activation of AMPK substrate ACC), and pLKB1 (activation of upstream to AMPK kinase LKB1), indicating that CAPE activates AMPK via LKB1. These results show that while GSNO and CAPE provide neuroprotection and improve functional recovery separately, the combination treatment invokes greater recovery by significantly improving mitochondrial functions and activating the AMPK enzyme. Both GSNO and CAPE are in human consumption without any known adverse effects; therefore, a combination therapy-based multimechanistic approach is worthy of investigation in human TBI.
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Affiliation(s)
- Mushfiquddin Khan
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina
| | | | - Tajinder S Dhammu
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina
| | - Hamza Khan
- College of Medicine, University of South Carolina, Columbia, South Carolina
| | - Inderjit Singh
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina.,Ralph H. Johnson VA Medical Center, Charleston, South Carolina
| | - Avtar K Singh
- Ralph H. Johnson VA Medical Center, Charleston, South Carolina.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina
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Higashi Y, Shimizu T, Yamamoto M, Tanaka K, Yawata T, Shimizu S, Zou S, Ueba T, Yuri K, Saito M. Stimulation of brain nicotinic acetylcholine receptors activates adrenomedullary outflow via brain inducible NO synthase-mediated S-nitrosylation. Br J Pharmacol 2018; 175:3758-3772. [PMID: 30007012 DOI: 10.1111/bph.14445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/26/2018] [Accepted: 07/04/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE We have demonstrated that i.c.v.-administered (±)-epibatidine, a nicotinic ACh receptor (nAChR) agonist, induced secretion of noradrenaline and adrenaline (catecholamines) from the rat adrenal medulla with dihydro-β-erythroidin (an α4β2 nAChR antagonist)-sensitive brain mechanisms. Here, we examined central mechanisms for the (±)-epibatidine-induced responses, focusing on brain NOS and NO-mediated mechanisms, soluble GC (sGC) and protein S-nitrosylation (a posttranslational modification of protein cysteine thiol groups), in urethane-anaesthetized (1.0 g·kg-1 , i.p.) male Wistar rats. EXPERIMENTAL APPROACH (±)-Epibatidine was i.c.v. treated after i.c.v. pretreatment with each inhibitor described below. Then, plasma catecholamines were measured electrochemically after HPLC. Immunoreactivity of S-nitrosylated cysteine (SNO-Cys) in α4 nAChR subunit (α4)-positive spinally projecting neurones in the rat hypothalamic paraventricular nucleus (PVN, a regulatory centre of adrenomedullary outflow) after i.c.v. (±)-epibatidine administration was also investigated. KEY RESULTS (±)-Epibatidine-induced elevation of plasma catecholamines was significantly attenuated by L-NAME (non-selective NOS inhibitor), carboxy-PTIO (NO scavenger), BYK191023 [selective inducible NOS (iNOS) inhibitor] and dithiothreitol (thiol-reducing reagent), but not by 3-bromo-7-nitroindazole (selective neuronal NOS inhibitor) or ODQ (sGC inhibitor). (±)-Epibatidine increased the number of spinally projecting PVN neurones with α4- and SNO-Cys-immunoreactivities, and this increment was reduced by BYK191023. CONCLUSIONS AND IMPLICATIONS Stimulation of brain nAChRs can induce elevation of plasma catecholamines through brain iNOS-derived NO-mediated protein S-nitrosylation in rats. Therefore, brain nAChRs (at least α4β2 subtype) and NO might be useful targets for alleviation of catecholamines overflow induced by smoking.
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Affiliation(s)
- Youichirou Higashi
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Takahiro Shimizu
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Masaki Yamamoto
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Kenjiro Tanaka
- Department of Neurobiology and Anatomy, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Toshio Yawata
- Department of Neurosurgery, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Shogo Shimizu
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Suo Zou
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Tetsuya Ueba
- Department of Neurosurgery, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Kazunari Yuri
- Department of Neurobiology and Anatomy, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Motoaki Saito
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
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167
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Regulation of SCF TIR1/AFBs E3 ligase assembly by S-nitrosylation of Arabidopsis SKP1-like1 impacts on auxin signaling. Redox Biol 2018; 18:200-210. [PMID: 30031268 PMCID: PMC6076216 DOI: 10.1016/j.redox.2018.07.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/26/2018] [Accepted: 07/05/2018] [Indexed: 12/22/2022] Open
Abstract
The F-box proteins (FBPs) TIR1/AFBs are the substrate recognition subunits of SKP1–cullin–F-box (SCF) ubiquitin ligase complexes and together with Aux/IAAs form the auxin co-receptor. Although tremendous knowledge on auxin perception and signaling has been gained in the last years, SCFTIR1/AFBs complex assembly and stabilization are emerging as new layers of regulation. Here, we investigated how nitric oxide (NO), through S-nitrosylation of ASK1 is involved in SCFTIR1/AFBs assembly. We demonstrate that ASK1 is S-nitrosylated and S-glutathionylated in cysteine (Cys) 37 and Cys118 residues in vitro. Both, in vitro and in vivo protein-protein interaction assays show that NO enhances ASK1 binding to CUL1 and TIR1/AFB2, required for SCFTIR1/AFB2 assembly. In addition, we demonstrate that Cys37 and Cys118 are essential residues for proper activation of auxin signaling pathway in planta. Phylogenetic analysis revealed that Cys37 residue is only conserved in SKP proteins in Angiosperms, suggesting that S-nitrosylation on Cys37 could represent an evolutionary adaption for SKP1 function in flowering plants. Collectively, these findings indicate that multiple events of redox modifications might be part of a fine-tuning regulation of SCFTIR1/AFBs for proper auxin signal transduction. ASK1 adaptor protein of the SCFTIR1/AFB E3 ligase complex is redox regulated. NO regulates ASK1 function by S-nitrosylation in Cys37 and Cys118 residues. NO enhances ASK1-CUL1 and ASK1-TIR1/AFB2 protein-protein interactions required for SCFTIR1/AFB2 assembly in vitro and in vivo. S-nitrosylated residues in ASK1 are essential for activation of auxin signaling pathway in plants.
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168
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Huang J, Willems P, Van Breusegem F, Messens J. Pathways crossing mammalian and plant sulfenomic landscapes. Free Radic Biol Med 2018; 122:193-201. [PMID: 29476921 DOI: 10.1016/j.freeradbiomed.2018.02.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 01/18/2018] [Accepted: 02/05/2018] [Indexed: 12/21/2022]
Abstract
Reactive oxygen species (ROS) and especially hydrogen peroxide, are potent signaling molecules that activate cellular defense responses. Hydrogen peroxide can provoke reversible and irreversible oxidative posttranslational modifications on cysteine residues of proteins that act in diverse signaling circuits. The initial oxidation product of cysteine, sulfenic acid, has emerged as a biologically relevant posttranslational modification, because it is the primary sulfur oxygen modification that precedes divergent series of additional adaptations. In this review, we focus on the functional consequences of sulfenylation for both mammalian and plant proteins. Furthermore, we created compendia of sulfenylated proteins in human and plants based on mass spectrometry experiments, thereby defining the current plant and human sulfenomes. To assess the evolutionary conservation of sulfenylation, the sulfenomes of human and plants were compared based on protein homology. In total, 185 human sulfenylated proteins showed homology to sulfenylated plant proteins and the conserved sulfenylation targets participated in specific biological pathways and metabolic processes. Comprehensive functional studies of sulfenylation remains a future challenge, with multiple candidates suggested by mass spectrometry awaiting scrutinization.
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Affiliation(s)
- Jingjing Huang
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium; Brussels Center for Redox Biology, 1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium.
| | - Patrick Willems
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium; Department of Biochemistry, Ghent University, 9000 Ghent, Belgium; Center for Medical Biotechnology, VIB, 9000 Ghent, Belgium.
| | - Frank Van Breusegem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium.
| | - Joris Messens
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium; Brussels Center for Redox Biology, 1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium.
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169
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Nitric Oxide Is Required for Melatonin-Enhanced Tolerance against Salinity Stress in Rapeseed ( Brassica napus L.) Seedlings. Int J Mol Sci 2018; 19:ijms19071912. [PMID: 29966262 PMCID: PMC6073977 DOI: 10.3390/ijms19071912] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/26/2018] [Accepted: 06/27/2018] [Indexed: 12/26/2022] Open
Abstract
Although melatonin (N-acetyl-5-methoxytryptamine) could alleviate salinity stress in plants, the downstream signaling pathway is still not fully characterized. Here, we report that endogenous melatonin and thereafter nitric oxide (NO) accumulation was successively increased in NaCl-stressed rapeseed (Brassica napus L.) seedling roots. Application of melatonin and NO-releasing compound not only counteracted NaCl-induced seedling growth inhibition, but also reestablished redox and ion homeostasis, the latter of which are confirmed by the alleviation of reactive oxygen species overproduction, the decreases in thiobarbituric acid reactive substances production, and Na⁺/K⁺ ratio. Consistently, the related antioxidant defense genes, sodium hydrogen exchanger (NHX1), and salt overly sensitive 2 (SOS2) transcripts are modulated. The involvement S-nitrosylation, a redox-based posttranslational modification triggered by NO, is suggested. Further results show that in response to NaCl stress, the increased NO levels are strengthened by the addition of melatonin in seedling roots. Above responses are abolished by the removal of NO by NO scavenger. We further discover that the removal of NO does not alter endogenous melatonin content in roots supplemented with NaCl alone or together with melatonin, thus excluding the possibility of NO-triggered melatonin production. Genetic evidence reveals that, compared with wild-type Arabidopsis, the hypersensitivity to NaCl in nia1/2 and noa1 mutants (exhibiting null nitrate reductase activity and indirectly reduced endogenous NO level, respectively) cannot be rescued by melatonin supplementation. The reestablishment of redox homeostasis and induction of SOS signaling are not observed. In summary, above pharmacological, molecular, and genetic data conclude that NO operates downstream of melatonin promoting salinity tolerance.
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170
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Ghasemi M, Claunch J, Niu K. Pathologic role of nitrergic neurotransmission in mood disorders. Prog Neurobiol 2018; 173:54-87. [PMID: 29890213 DOI: 10.1016/j.pneurobio.2018.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/30/2018] [Accepted: 06/05/2018] [Indexed: 02/08/2023]
Abstract
Mood disorders are chronic, recurrent mental diseases that affect millions of individuals worldwide. Although over the past 40 years the biogenic amine models have provided meaningful links with the clinical phenomena of, and the pharmacological treatments currently employed in, mood disorders, there is still a need to examine the contribution of other systems to the neurobiology and treatment of mood disorders. This article reviews the current literature describing the potential role of nitric oxide (NO) signaling in the pathophysiology and thereby the treatment of mood disorders. The hypothesis has arisen from several observations including (i) altered NO levels in patients with mood disorders; (ii) antidepressant effects of NO signaling blockers in both clinical and pre-clinical studies; (iii) interaction between conventional antidepressants/mood stabilizers and NO signaling modulators in several biochemical and behavioral studies; (iv) biochemical and physiological evidence of interaction between monoaminergic (serotonin, noradrenaline, and dopamine) system and NO signaling; (v) interaction between neurotrophic factors and NO signaling in mood regulation and neuroprotection; and finally (vi) a crucial role for NO signaling in the inflammatory processes involved in pathophysiology of mood disorders. These accumulating lines of evidence have provided a new insight into novel approaches for the treatment of mood disorders.
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Affiliation(s)
- Mehdi Ghasemi
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, 01655, USA.
| | - Joshua Claunch
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, 01655, USA
| | - Kathy Niu
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, 01655, USA
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171
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Efird JT, Jindal C, Kiser AC, Akhter SA, Crane PB, Kypson AP, Sverdlov AL, Davies SW, Kindell LC, Anderson EJ. Increased risk of atrial fibrillation among patients undergoing coronary artery bypass graft surgery while receiving nitrates and antiplatelet agents. J Int Med Res 2018; 46:3183-3194. [PMID: 29808744 PMCID: PMC6134635 DOI: 10.1177/0300060518773934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background Postoperative atrial fibrillation (POAF) is a frequent complication of coronary artery bypass graft (CABG) surgery. This arrhythmia occurs more frequently among patients who receive perioperative inotropic therapy (PINOT). Administration of nitrates with antiplatelet agents reduces the conversion rate of cyclic guanosine monophosphate to guanosine monophosphate. This process is associated with increased concentrations of free radicals, catecholamines, and blood plasma volume. We hypothesized that patients undergoing CABG surgery who receive PINOT may be more susceptible to POAF when nitrates are administered with antiplatelet agents. Methods Clinical records were examined from a prospectively maintained cohort of 4,124 patients undergoing primary isolated CABG surgery to identify POAF-associated factors. Results POAF risk was increased among patients receiving PINOT, and the greatest effect was observed when nitrates were administered with antiplatelet therapy. Adjustment for comorbidities did not substantively change the study results. Conclusions Administration of nitrates with certain antiplatelet agents was associated with an increased POAF risk among patients undergoing CABG surgery. Additional studies are needed to determine whether preventive strategies such as administration of antioxidants will reduce this risk.
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Affiliation(s)
- Jimmy T Efird
- 1 Centre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - Charulata Jindal
- 1 Centre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - Andy C Kiser
- 2 Department of Cardiovascular Sciences, Brody School of Medicine, Greenville, NC, USA
| | - Shahab A Akhter
- 2 Department of Cardiovascular Sciences, Brody School of Medicine, Greenville, NC, USA
| | - Patricia B Crane
- 3 Office of the Dean, College of Nursing, East Carolina University, Greenville, NC, USA
| | - Alan P Kypson
- 4 Cardiac Surgical Specialists, REX Health Care, University of North Carolina, Raleigh, NC, USA
| | - Aaron L Sverdlov
- 5 Priority Clinical Centre for Cardiovascular Health, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - Stephen W Davies
- 6 Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Linda C Kindell
- 2 Department of Cardiovascular Sciences, Brody School of Medicine, Greenville, NC, USA
| | - Ethan J Anderson
- 7 Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, USA
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172
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Saito A, Taniguchi Y, Kim SH, Selvakumar B, Perez G, Ballinger MD, Zhu X, Sabra J, Jallow M, Yan P, Ito K, Rajendran S, Hirotsune S, Wynshaw-Boris A, Snyder SH, Sawa A, Kamiya A. Developmental Alcohol Exposure Impairs Activity-Dependent S-Nitrosylation of NDEL1 for Neuronal Maturation. Cereb Cortex 2018; 27:3918-3929. [PMID: 27371763 DOI: 10.1093/cercor/bhw201] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Neuronal nitric oxide synthase is involved in diverse signaling cascades that regulate neuronal development and functions via S-Nitrosylation-mediated mechanism or the soluble guanylate cyclase (sGC)/cyclic guanosine monophosphate (cGMP) pathway activated by nitric oxide. Although it has been studied extensively in vitro and in invertebrate animals, effects on mammalian brain development and underlying mechanisms remain poorly understood. Here we report that genetic deletion of "Nos1" disrupts dendritic development, whereas pharmacological inhibition of the sGC/cGMP pathway does not alter dendritic growth during cerebral cortex development. Instead, nuclear distribution element-like (NDEL1), a protein that regulates dendritic development, is specifically S-nitrosylated at cysteine 203, thereby accelerating dendritic arborization. This post-translational modification is enhanced by N-methyl-D-aspartate receptor-mediated neuronal activity, the main regulator of dendritic formation. Notably, we found that disruption of S-Nitrosylation of NDEL1 mediates impaired dendritic maturation caused by developmental alcohol exposure, a model of developmental brain abnormalities resulting from maternal alcohol use. These results highlight S-Nitrosylation as a key activity-dependent mechanism underlying neonatal brain maturation and suggest that reduction of S-Nitrosylation of NDEL1 acts as a pathological factor mediating neurodevelopmental abnormalities caused by maternal alcohol exposure.
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Affiliation(s)
- Atsushi Saito
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.,Department of Biological Psychiatry and Neuroscience, Dokkyo Medical University School of Medicine, Shimotsuga-gun, Tochigi 321-0293, Japan
| | - Yu Taniguchi
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Sun-Hong Kim
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Balakrishnan Selvakumar
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Gabriel Perez
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Michael D Ballinger
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Xiaolei Zhu
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - James Sabra
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Mariama Jallow
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Priscilla Yan
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Koki Ito
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Shreenath Rajendran
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Shinji Hirotsune
- Department of Genetic Disease Research, Osaka City University Graduate School of Medicine, Abeno, Osaka 545-8585, Japan
| | - Anthony Wynshaw-Boris
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Solomon H Snyder
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Akira Sawa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Atsushi Kamiya
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
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173
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Wareham LK, Buys ES, Sappington RM. The nitric oxide-guanylate cyclase pathway and glaucoma. Nitric Oxide 2018; 77:75-87. [PMID: 29723581 DOI: 10.1016/j.niox.2018.04.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/18/2018] [Accepted: 04/23/2018] [Indexed: 01/12/2023]
Abstract
Glaucoma is a prevalent optic neuropathy characterized by the progressive dysfunction and loss of retinal ganglion cells (RGCs) and their optic nerve axons, which leads to irreversible visual field loss. Multiple risk factors for the disease have been identified, but elevated intraocular pressure (IOP) remains the primary risk factor amenable to treatment. Reducing IOP however does not always prevent glaucomatous neurodegeneration, and many patients progress with the disease despite having IOP in the normal range. There is increasing evidence that nitric oxide (NO) is a direct regulator of IOP and that dysfunction of the NO-Guanylate Cyclase (GC) pathway is associated with glaucoma incidence. NO has shown promise as a novel therapeutic with targeted effects that: 1) lower IOP; 2) increase ocular blood flow; and 3) confer neuroprotection. The various effects of NO in the eye appear to be mediated through the activation of the GC- guanosine 3:5'-cyclic monophosphate (cGMP) pathway and its effect on downstream targets, such as protein kinases and Ca2+ channels. Although NO-donor compounds are promising as therapeutics for IOP regulation, they may not be ideal to harness the neuroprotective potential of NO signaling. Here we review evidence that supports direct targeting of GC as a novel pleiotrophic treatment for the disease, without the need for direct NO application. The identification and targeting of other factors that contribute to glaucoma would be beneficial to patients, particularly those that do not respond well to IOP-dependent interventions.
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Affiliation(s)
- Lauren K Wareham
- Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | | | - Rebecca M Sappington
- Department of Ophthalmology and Visual Sciences, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA.
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174
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Ohtani M, Kawabe H, Demura T. Evidence that thiol-based redox state is critical for xylem vessel cell differentiation. PLANT SIGNALING & BEHAVIOR 2018; 13:e1428512. [PMID: 29393823 PMCID: PMC5933917 DOI: 10.1080/15592324.2018.1428512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Nitric oxide (NO), which plays essential roles in a variety of cell signaling processes, is the precursor of a family of NO-derived molecules, including toxic reactive nitrogen species. The NO-based regulation of cellular activity is mediated by the reversible modification of cysteine thiol groups in redox-sensitive proteins. One such modification is protein S-nitrosylation, i.e., the addition of an NO moiety to a cysteine thiol, and this S-nitrosylation is regulated by enzymes such as S-nitrosoglutathione reductase (GSNOR). Recently, we reported a novel loss-of-function allele of gsnor1, named suppressor of ectopic vessel cell differentiation induced by VND7-1 (seiv1), based on the VND7-inducible system, in which almost all cell types are transdifferentiated into xylem vessel cells upon activation of the NAC transcription factor VND7. We also found that VND7 can be S-nitrosylated and that the target cysteine residues for S-nitrosylation are critical for VND7 transactivation activity. Here, we further discuss roles for GSNOR1 in xylem vessel cell differentiation, and provide additional data on the effects of cellular NO level on VND7 activity.
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Affiliation(s)
- Misato Ohtani
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- CONTACT Misato Ohtani Graduate School of Biological Sciences, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192 Japan
| | - Harunori Kawabe
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Japan
| | - Taku Demura
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- CONTACT Taku Demura Graduate School of Biological Sciences, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192 Japan
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175
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Lin L, Xu C, Carraway MS, Piantadosi CA, Whorton AR, Li S. RhoA inactivation by S-nitrosylation regulates vascular smooth muscle contractive signaling. Nitric Oxide 2018; 74:56-64. [DOI: 10.1016/j.niox.2018.01.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 01/13/2018] [Accepted: 01/16/2018] [Indexed: 01/19/2023]
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176
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Identification of NO-Sensitive Cysteine Residues Using Cysteine Mutants of Recombinant Proteins. Methods Mol Biol 2018. [PMID: 29600460 DOI: 10.1007/978-1-4939-7695-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Nitric oxide (NO) is a free radical gas regulating a wide range of biological processes in plants. Proteins are the main reaction target of NO inside the cells. The relevance of S-nitrosation as one of the NO-mediated protein posttranslational modifications has been studied in detail. S-nitrosylation causes alterations of the activity/function, sub-cellular localization or interaction partners of proteins. Up to present, a large number of S-nitrosation candidates have been detected in plants. Recombinant proteins are widely used to show or confirm the protein posttranslational modifications. Here, using recombinant proteins subjected to biotin switch assay, the S-nitrosation of some nuclear candidates of Arabidopsis is verified. Proteins usually contain several cysteine residues which each might involve in structure of protein active sites. So, an important question is: which cysteine residue is the target of S-nitrosation and does it belong to an active site? Here, using the approach of substitution of cysteines by serines on recombinant proteins, the NO-sensitive cysteine residue of an Arabidopsis nuclear protein is identified. The next step could be to investigate the effect of S-nitrosation on protein activity/function and further to test the role of target cysteines and S-nitrosation of them in protein activity/function.
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177
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S-nitrosylation drives cell senescence and aging in mammals by controlling mitochondrial dynamics and mitophagy. Proc Natl Acad Sci U S A 2018; 115:E3388-E3397. [PMID: 29581312 DOI: 10.1073/pnas.1722452115] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
S-nitrosylation, a prototypic redox-based posttranslational modification, is frequently dysregulated in disease. S-nitrosoglutathione reductase (GSNOR) regulates protein S-nitrosylation by functioning as a protein denitrosylase. Deficiency of GSNOR results in tumorigenesis and disrupts cellular homeostasis broadly, including metabolic, cardiovascular, and immune function. Here, we demonstrate that GSNOR expression decreases in primary cells undergoing senescence, as well as in mice and humans during their life span. In stark contrast, exceptionally long-lived individuals maintain GSNOR levels. We also show that GSNOR deficiency promotes mitochondrial nitrosative stress, including excessive S-nitrosylation of Drp1 and Parkin, thereby impairing mitochondrial dynamics and mitophagy. Our findings implicate GSNOR in mammalian longevity, suggest a molecular link between protein S-nitrosylation and mitochondria quality control in aging, and provide a redox-based perspective on aging with direct therapeutic implications.
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178
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Zhou C, Teegala SB, Khan BA, Gonzalez C, Routh VH. Hypoglycemia: Role of Hypothalamic Glucose-Inhibited (GI) Neurons in Detection and Correction. Front Physiol 2018; 9:192. [PMID: 29593556 PMCID: PMC5854653 DOI: 10.3389/fphys.2018.00192] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 02/23/2018] [Indexed: 01/08/2023] Open
Abstract
Hypoglycemia is a profound threat to the brain since glucose is its primary fuel. As a result, glucose sensors are widely located in the central nervous system and periphery. In this perspective we will focus on the role of hypothalamic glucose-inhibited (GI) neurons in sensing and correcting hypoglycemia. In particular, we will discuss GI neurons in the ventromedial hypothalamus (VMH) which express neuronal nitric oxide synthase (nNOS) and in the perifornical hypothalamus (PFH) which express orexin. The ability of VMH nNOS-GI neurons to depolarize in low glucose closely parallels the hormonal response to hypoglycemia which stimulates gluconeogenesis. We have found that nitric oxide (NO) production in low glucose is dependent on oxidative status. In this perspective we will discuss the potential relevance of our work showing that enhancing the glutathione antioxidant system prevents hypoglycemia associated autonomic failure (HAAF) in non-diabetic rats whereas VMH overexpression of the thioredoxin antioxidant system restores hypoglycemia counterregulation in rats with type 1 diabetes.We will also address the potential role of the orexin-GI neurons in the arousal response needed for hypoglycemia awareness which leads to behavioral correction (e.g., food intake, glucose administration). The potential relationship between the hypothalamic sensors and the neurocircuitry in the hindbrain and portal mesenteric vein which is critical for hypoglycemia correction will then be discussed.
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Affiliation(s)
| | | | | | | | - Vanessa H. Routh
- Department of Pharmacology, Physiology and Neurosciences, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, United States
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179
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Pires PW, Earley S. Redox regulation of transient receptor potential channels in the endothelium. Microcirculation 2018; 24. [PMID: 27809396 DOI: 10.1111/micc.12329] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 10/31/2016] [Indexed: 01/08/2023]
Abstract
ROS and RNS are important mediators of signaling pathways in the endothelium. Specific members of the TRP superfamily of cation channels act as important Ca2+ influx pathways in endothelial cells and are involved in endothelium-dependent vasodilation, regulation of barrier permeability, and angiogenesis. ROS and RNS can modulate the activity of certain TRP channels mainly by modifying specific cysteine residues or by stimulating the production of second messengers. In this review, we highlight the recent literature describing redox regulation of TRP channel activity in endothelial cells as well as the physiological importance of these pathways and implication for cardiovascular diseases.
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Affiliation(s)
- Paulo Wagner Pires
- Department of Pharmacology, Cardiovascular Research Center, Reno School of Medicine, University of Nevada, Reno, NV, USA
| | - Scott Earley
- Department of Pharmacology, Cardiovascular Research Center, Reno School of Medicine, University of Nevada, Reno, NV, USA
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180
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Zhang C, Biggs TD, Devarie-Baez NO, Shuang S, Dong C, Xian M. S-Nitrosothiols: chemistry and reactions. Chem Commun (Camb) 2018; 53:11266-11277. [PMID: 28944382 DOI: 10.1039/c7cc06574d] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The formation of S-nitrosothiols (SNO) in protein cysteine residues is an important post-translational modification elicited by nitric oxide (NO). This process is involved in virtually every class of cell signaling and has attracted considerable attention in redox biology. On the other hand, their unique structural characters make SNO potentially useful synthons. In this review, we summarized the fundamental chemical/physical properties of SNO. We also highlighted the reported chemical reactions of SNO, including the reactions with phosphine reagents, sulfinic acids, various nucleophiles, SNO-mediated radical additions, and the reactions of acyl SNO species.
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Affiliation(s)
- Caihong Zhang
- School of Chemistry and Chemical Engineering, Institute of Environmental Science Shanxi University, Taiyuan, Shanxi 030006, China.
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181
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Sievers S, Dittmann S, Jordt T, Otto A, Hochgräfe F, Riedel K. Comprehensive Redox Profiling of the Thiol Proteome of Clostridium difficile. Mol Cell Proteomics 2018; 17:1035-1046. [PMID: 29496906 DOI: 10.1074/mcp.tir118.000671] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Indexed: 11/06/2022] Open
Abstract
The strictly anaerobic bacterium C. difficile has become one of the most problematic hospital acquired pathogens and a major burden for health care systems. Although antibiotics work effectively in most C. difficile infections (CDIs), their detrimental effect on the intestinal microbiome paves the way for recurrent episodes of CDI. To develop alternative, non-antibiotics-based treatment strategies, deeper knowledge on the physiology of C. difficile, stress adaptation mechanisms and regulation of virulence factors is mandatory. The focus of this work was to tackle the thiol proteome of C. difficile and its stress-induced alterations, because recent research has reported that the amino acid cysteine plays a central role in the metabolism of this pathogen. We have developed a novel cysteine labeling approach to determine the redox state of protein thiols on a global scale. Applicability of this technique was demonstrated by inducing disulfide stress using the chemical diamide. The method can be transferred to any kind of redox challenge and was applied in this work to assess the effect of bile acids on the thiol proteome of C. difficile We present redox-quantification for more than 1,500 thiol peptides and discuss the general difficulty of redox analyses of peptides possessing more than a single cysteine residue. The presented method will be especially useful not only when determining redox status, but also for providing information on protein quantity. Additionally, our comprehensive data set reveals protein cysteine sites particularly susceptible to oxidation and builds a groundwork for redox proteomics studies in C. difficile.
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Affiliation(s)
- Susanne Sievers
- From the ‡Department of Microbial Physiology & Molecular Biology;
| | - Silvia Dittmann
- From the ‡Department of Microbial Physiology & Molecular Biology
| | - Tim Jordt
- From the ‡Department of Microbial Physiology & Molecular Biology
| | | | - Falko Hochgräfe
- ¶Junior Research Group Pathoproteomics, Institute of Microbiology, University of Greifswald, 17489 Greifswald, Germany
| | - Katharina Riedel
- From the ‡Department of Microbial Physiology & Molecular Biology
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182
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Bruegger JJ, Smith BC, Wynia-Smith SL, Marletta MA. Comparative and integrative metabolomics reveal that S-nitrosation inhibits physiologically relevant metabolic enzymes. J Biol Chem 2018; 293:6282-6296. [PMID: 29483187 DOI: 10.1074/jbc.m117.817700] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 02/21/2018] [Indexed: 12/16/2022] Open
Abstract
Cysteine S-nitrosation is a reversible post-translational modification mediated by nitric oxide (•NO)-derived agents. S-Nitrosation participates in cellular signaling and is associated with several diseases such as cancer, cardiovascular diseases, and neuronal disorders. Despite the physiological importance of this nonclassical •NO-signaling pathway, little is understood about how much S-nitrosation affects protein function. Moreover, identifying physiologically relevant targets of S-nitrosation is difficult because of the dynamics of transnitrosation and a limited understanding of the physiological mechanisms leading to selective protein S-nitrosation. To identify proteins whose activities are modulated by S-nitrosation, we performed a metabolomics study comparing WT and endothelial nitric-oxide synthase knockout mice. We integrated our results with those of a previous proteomics study that identified physiologically relevant S-nitrosated cysteines, and we found that the activity of at least 21 metabolic enzymes might be regulated by S-nitrosation. We cloned, expressed, and purified four of these enzymes and observed that S-nitrosation inhibits the metabolic enzymes 6-phosphogluconate dehydrogenase, Δ1-pyrroline-5-carboxylate dehydrogenase, catechol-O-methyltransferase, and d-3-phosphoglycerate dehydrogenase. Furthermore, using site-directed mutagenesis, we identified the predominant cysteine residue influencing the observed activity changes in each enzyme. In summary, using an integrated metabolomics approach, we have identified several physiologically relevant S-nitrosation targets, including metabolic enzymes, which are inhibited by this modification, and we have found the cysteines modified by S-nitrosation in each enzyme.
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Affiliation(s)
| | | | | | - Michael A Marletta
- From the QB3 Institute and .,Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720-3220
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183
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Zhou X, Cooper KL, Huestis J, Xu H, Burchiel SW, Hudson LG, Liu KJ. S-nitrosation on zinc finger motif of PARP-1 as a mechanism of DNA repair inhibition by arsenite. Oncotarget 2018; 7:80482-80492. [PMID: 27741521 PMCID: PMC5348335 DOI: 10.18632/oncotarget.12613] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/04/2016] [Indexed: 12/21/2022] Open
Abstract
Arsenic, a widely distributed carcinogen, is known to significantly amplify the impact of other carcinogens through inhibition of DNA repair. Our recent work suggests that reactive oxygen/nitrogen species (ROS/RNS) induced by arsenite (AsIII) play an important role in the inhibition of the DNA repair protein Poly(ADP-ribose) polymerase 1 (PARP-1). AsIII-induced ROS lead to oxidation of cysteine residues within the PARP-1 zinc finger DNA binding domain. However, the mechanism underlying RNS-mediated PARP inhibition by arsenic remains unknown. In this work, we demonstrate that AsIII treatment of normal human keratinocyte (HEKn) cells induced S-nitrosation on cysteine residues of PARP-1 protein, in a similar manner to a nitric oxide donor. S-nitrosation of PARP-1 could be reduced by 1400W (inducible nitric oxide synthase inhibitor) or c-PTIO (a nitric oxide scavenger). Furthermore, AsIII treatment of HEKn cells leads to zinc loss and inhibition of PARP-1 enzymatic activity. AsIII and 1400W/c-PTIO co-treatment demonstrate that these effects occur in an iNOS- and NO-dependent manner. Importantly, we confirmed S-nitrosation on the zinc finger DNA binding domain of PARP-1 protein. Taken together, AsIII induces S-nitrosation on PARP-1 zinc finger DNA binding domain by generating NO through iNOS activation, leading to zinc loss and inhibition of PARP-1 activity, thereby increasing retention of damaged DNA. These findings identify S-nitrosation as an important component of the molecular mechanism underlying AsIII inhibition of DNA repair, which may benefit the development of preventive and intervention strategies against AsIII co-carcinogenesis.
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Affiliation(s)
- Xixi Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Karen L Cooper
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Juliana Huestis
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Huan Xu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Scott W Burchiel
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Laurie G Hudson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Ke Jian Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
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184
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185
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Wang L, Liu Y, Lu R, Dong G, Chen X, Yun W, Zhou X. The role of S-nitrosylation of kainate-type of ionotropic glutamate receptor 2 in epilepsy induced by kainic acid. J Neurochem 2018; 144:255-270. [PMID: 29193067 DOI: 10.1111/jnc.14266] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 11/29/2022]
Abstract
Epilepsy is a chronic brain disease affecting millions of individuals. Kainate receptors, especially kainate-type of ionotropic glutamate receptor 2 (GluK2), play an important role in epileptogenesis. Recent data showed that GluK2 could undergo post-translational modifications in terms of S-nitrosylation (SNO), and affect the signaling pathway of cell death in cerebral ischemia-reperfusion. However, it is unclear whether S-nitrosylation of GluK2 (SNO-GluK2) contributes to cell death induced by epilepsy. Here, we report that kainic acid-induced SNO-GluK2 is mediated by GluK2 itself, regulated by neuronal nitric oxide synthase (nNOS) and the level of cytoplasmic calcium in vivo and in vitro hippocampus neurons. The whole-cell patch clamp recordings showed the influence of SNO-GluK2 on ion channel characterization of GluK2-Kainate receptors. Moreover, immunohistochemistry staining results showed that inhibition of SNO-GluK2 by blocking nNOS or GluK2 or by reducing the level of cytoplasmic calcium-protected hippocampal neurons from kainic acid-induced injury. Finally, immunoprecipitation and western blotting data revealed the involvement of assembly of a GluK2-PSD95-nNOS signaling complex in epilepsy. Taken together, our results showed that the SNO-GluK2 plays an important role in neuronal injury of epileptic rats by forming GluK2-PSD95-nNOS signaling module in a cytoplasmic calcium-dependent way, suggesting a potential therapeutic target site for epilepsy.
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Affiliation(s)
- Linxiao Wang
- Laboratory of Neurological Diseases, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
| | - Yanyan Liu
- Department of Neurology, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
| | - Rulan Lu
- Laboratory of Neurological Diseases, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
| | - Guoying Dong
- Laboratory of Neurological Diseases, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
| | - Xia Chen
- Laboratory of Neurological Diseases, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
| | - Wenwei Yun
- Department of Neurology, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
| | - Xianju Zhou
- Laboratory of Neurological Diseases, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
- Department of Neurology, The affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu Province, China
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186
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Synthesis and Biological Evaluations of NO-Donating Oxa- and Aza-Pentacycloundecane Derivatives as Potential Neuroprotective Candidates. Molecules 2018; 23:molecules23020308. [PMID: 29385098 PMCID: PMC6017363 DOI: 10.3390/molecules23020308] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/26/2018] [Accepted: 01/28/2018] [Indexed: 11/17/2022] Open
Abstract
In order to utilize the neuroprotective properties of polycyclic cage compounds, and explore the NO-donating ability of nitrophenyl groups, an array of compounds was synthesized where the different nitrophenyl groups were appended on oxa and aza-bridged cage derivatives. Biological evaluations of the compounds were done for cytotoxicity, neuroprotective abilities, the inhibition of N-methyl-d-aspartate (NMDA)-mediated Ca2+ influx, the inhibition of voltage-mediated Ca2+ influx, and S-nitrosylation abilities. All of the compounds showed low toxicity. With a few exceptions, most of the compounds displayed good neuroprotection and showed inhibitory activity for NMDA-mediated and voltage-gated calcium influx, ranging from high (>70%) to low (20–39%) inhibition. In the S-nitrosylation assay, the compounds with the nitro moiety as the NO-donating group exhibited low to good nitrosylation potency compared to the positive controls. From the biological evaluation of the tested compounds, it was not possible to obtain a simple correlation that could explain the results across all of the biological study domains. This can be ascribed to the independent processes evaluated in the different assays, which reiterate that neuroprotection is a result of multifactorial biochemical mechanisms and interactions. However, these results signify the important aspects of the pentacylcoundecylamine neuroprotectants across different biological study realms.
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187
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Seth D, Hess DT, Hausladen A, Wang L, Wang YJ, Stamler JS. A Multiplex Enzymatic Machinery for Cellular Protein S-nitrosylation. Mol Cell 2018; 69:451-464.e6. [PMID: 29358078 DOI: 10.1016/j.molcel.2017.12.025] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/22/2017] [Accepted: 12/22/2017] [Indexed: 02/07/2023]
Abstract
S-nitrosylation, the oxidative modification of Cys residues by nitric oxide (NO) to form S-nitrosothiols (SNOs), modifies all main classes of proteins and provides a fundamental redox-based cellular signaling mechanism. However, in contrast to other post-translational protein modifications, S-nitrosylation is generally considered to be non-enzymatic, involving multiple chemical routes. We report here that endogenous protein S-nitrosylation in the model organism E. coli depends principally upon the enzymatic activity of the hybrid cluster protein Hcp, employing NO produced by nitrate reductase. Anaerobiosis on nitrate induces both Hcp and nitrate reductase, thereby resulting in the S-nitrosylation-dependent assembly of a large interactome including enzymes that generate NO (NO synthase), synthesize SNO-proteins (SNO synthase), and propagate SNO-based signaling (trans-nitrosylases) to regulate cell motility and metabolism. Thus, protein S-nitrosylation by NO in E. coli is essentially enzymatic, and the potential generality of the multiplex enzymatic mechanism that we describe may support a re-conceptualization of NO-based cellular signaling.
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Affiliation(s)
- Divya Seth
- Institute for Transformative Molecular Medicine and Department of Medicine, Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Douglas T Hess
- Institute for Transformative Molecular Medicine and Department of Medicine, Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Alfred Hausladen
- Institute for Transformative Molecular Medicine and Department of Medicine, Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Liwen Wang
- Center for Proteomics and Bioinformatics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Ya-Juan Wang
- Center for Proteomics and Bioinformatics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Jonathan S Stamler
- Institute for Transformative Molecular Medicine and Department of Medicine, Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA; Harrington Discovery Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA.
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188
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Abstract
The addition of nitric oxide to cysteine moieties of proteins results in the formation of S-nitrosothiols (SNO) that have emerged as important posttranslational signaling cues in a wide variety of eukaryotic processes. While formation of protein-SNO is largely nonenzymatic, the conserved family of Thioredoxin (TRX) enzymes are capable of selectively reducing protein-SNO. Consequently, TRX enzymes are thought to provide reversibility and specificity to protein-SNO signaling networks. Here, we describe an in vitro methodology based on enzymatic oxidoreductase and biotin-switch techniques, allowing for the detection of protein-SNO targets of TRX enzymes. We show that this methodology identifies both global and specific protein-SNO targets of TRX in plant cell extracts.
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Affiliation(s)
- Sophie Kneeshaw
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Steven H Spoel
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.
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189
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Shekariesfahlan A, Lindermayr C. Detection of S-Nitrosated Nuclear Proteins in Pathogen-Treated Arabidopsis Cell Cultures Using Biotin Switch Technique. Methods Mol Biol 2018; 1747:205-221. [PMID: 29600461 DOI: 10.1007/978-1-4939-7695-9_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nitric oxide (NO) is an important signaling molecule involved in various plant physiological processes. The main effect of NO arises from its reaction with proteins. S-Nitrosation is the most studied NO-mediated protein posttranslational modification in plants. Via S-nitrosation, NO derivatives react with thiol groups (SHs) of protein cysteine residues and produce nitrosothiol groups (SNOs). From the time of discovering the biological function of NO in plants, an interesting case of study has been the detection of the endogenous S-nitrosated proteins in different plants, tissues, organelles, and various conditions. Maps of S-nitrosated proteins provide hints for deeper studies on the function of this modification in specific proteins, biochemical pathways, and physiological processes. Many functions of NO have been found to be related to plant defense; on the other hand the involvement of nuclear proteins in regulation of plant defense reactions is well studied. Here, an approach is described in which the Arabidopsis cell cultures first are treated with P. syringae, afterward their bioactive nuclear proteins are extracted, then the nuclear proteins are subjected to biotin switch assay in which S-nitrosated proteins are specifically converted to S-biotinylated proteins. The biotin switch technique (BST) which was introduced by Jaffrey et al. (Nat Cell Biol 3:193-197, 2001) solves the instability issue of SNOs. Additionally, it provides detection and purification of biotinylated proteins by anti-biotin antibody and affinity chromatography, respectively.
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Affiliation(s)
- Azam Shekariesfahlan
- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
| | - Christian Lindermayr
- Helmholtz Zentrum München-German Research GmbH, Center for Environment Health, Institute of Biochemical Plant Pathology, Ingolstädter Landstraße 1, 85764, Munich-Neuherberg, Germany.
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190
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Kakizawa S. [Physiological roles of redox signals in relation to synaptic plasticity and brain functions]. Nihon Yakurigaku Zasshi 2018; 152:227-232. [PMID: 30393254 DOI: 10.1254/fpj.152.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In our classical knowledge, redox molecules, including reactive oxygen species (ROS), nitric oxide (NO) and hydrogen sulfide, are considered to be generated as byproducts of aerobic metabolism and act as harmful oxidants of macromolecules, such as proteins and lipids. On the other hands, recently, expressions of enzymes producing redox molecules are identified and reported to be expressed in wide range of tissues, including brain. Moreover, activities of some of these enzymes are revealed to be regulated by physiological signals (e.g. calcium). These observations suggest that redox molecules act as physiological messengers and have biological functions. Actually, recent studies indicate possible involvement of redox signals in functional modification of proteins essential for synaptic plasticity in cultured cells and acute slice preparations. For example, S-nitrosylation of type 1 ryanodine receptor, an intracellular calcium-release channel, is revealed to be essential for NO-induced calcium release (NICR) and synaptic plasticity in cerebellar Purkinje cells. Further studies on mutant animals deficient in redox-modification site may clarify essential role of redox signals in brain functions in vivo.
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Affiliation(s)
- Sho Kakizawa
- Department of Biological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University
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191
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192
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Alcock LJ, Perkins MV, Chalker JM. Chemical methods for mapping cysteine oxidation. Chem Soc Rev 2018; 47:231-268. [DOI: 10.1039/c7cs00607a] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Methods to characterise oxidative modifications of cysteine help clarify their role in protein function in both healthy and diseased cells.
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Affiliation(s)
- Lisa J. Alcock
- College of Science and Engineering
- Flinders University
- South Australia
- Australia
| | - Michael V. Perkins
- College of Science and Engineering
- Flinders University
- South Australia
- Australia
| | - Justin M. Chalker
- College of Science and Engineering
- Flinders University
- South Australia
- Australia
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193
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Biotin Switch Processing and Mass Spectrometry Analysis of S-Nitrosated Thioredoxin and Its Transnitrosation Targets. Methods Mol Biol 2018; 1747:253-266. [PMID: 29600465 DOI: 10.1007/978-1-4939-7695-9_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
S-Nitrosation is a key posttranslational modification in regulating proteins in both normal physiology and diverse human diseases. To identify novel therapies for human diseases linked to oxidative and nitrosative stress, understanding how cells control S-nitrosation specificity could be critical. Among the enzymes known to control S-nitrosation of proteins, thioredoxin 1 (Trx1), a conserved disulfide reductase, transnitrosates and denitrosates distinct sets of target proteins. To recognize the function of Trx1 in both normal and dysfunctional cells, S-nitrosation targets of Trx1 in different cells need to be identified. However, S-nitrosation is usually too labile to be detected directly by mass spectrometry (MS). Here we present two optimized MS techniques to identify S-nitrosated Trx1 and its transnitrosation targets, using both direct and indirect MS methods.
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194
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Aimé S, Hichami S, Wendehenne D, Lamotte O. Analysis of Recombinant Protein S-Nitrosylation Using the Biotin-Switch Technique. Methods Mol Biol 2018; 1747:131-141. [PMID: 29600456 DOI: 10.1007/978-1-4939-7695-9_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nitric oxide is regarded as a key signaling messenger in several organisms. Its physiological relevance is partly due to its capacity to induce posttranslational modifications of proteins through its direct or indirect reaction with specific amino acid residues. Among them, S-nitrosylation has been shown to be involved in a broad range of cellular signaling pathways both in animals and plants. The identification of S-nitrosylated proteins has been made possible by the development of the Biotin-Switch Technique (BST) in the early 2000s. Here, we describe the BST protocol we routinely use to check in vitro S-nitrosylation of recombinant proteins induced by NO donors.
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Affiliation(s)
- Sébastien Aimé
- UMR 1347 Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne-Franche Comté, Dijon Cedex, France
- Pôle Mécanismes et Gestions des Interactions Plantes Microorganismes, CNRS, Dijon Cedex, France
| | - Siham Hichami
- UMR 1347 Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne-Franche Comté, Dijon Cedex, France
- Pôle Mécanismes et Gestions des Interactions Plantes Microorganismes, CNRS, Dijon Cedex, France
| | - David Wendehenne
- UMR 1347 Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne-Franche Comté, Dijon Cedex, France
- Pôle Mécanismes et Gestions des Interactions Plantes Microorganismes, CNRS, Dijon Cedex, France
| | - Olivier Lamotte
- UMR 1347 Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne-Franche Comté, Dijon Cedex, France.
- Pôle Mécanismes et Gestions des Interactions Plantes Microorganismes, CNRS, Dijon Cedex, France.
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195
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Fulzele A, Bennett EJ. Ubiquitin diGLY Proteomics as an Approach to Identify and Quantify the Ubiquitin-Modified Proteome. Methods Mol Biol 2018; 1844:363-384. [PMID: 30242721 PMCID: PMC6791129 DOI: 10.1007/978-1-4939-8706-1_23] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Protein ubiquitylation is one of the most prevalent posttranslational modifications (PTM) within cells. Ubiquitin modification of target lysine residues typically marks substrates for proteasome-dependent degradation. However, ubiquitylation can also alter protein function through modulation of protein complexes, localization, or activity, without impacting protein turnover. Taken together, ubiquitylation imparts critical regulatory control over nearly every cellular, physiological, and pathophysiological process. Affinity purification techniques coupled with quantitative mass spectrometry have been robust tools to identify PTMs on endogenous proteins. A peptide antibody-based affinity approach has been successfully utilized to enrich for and identify endogenously ubiquitylated proteins. These antibodies recognize the Lys-ϵ-Gly-Gly (diGLY) remnant that is generated following trypsin digestion of ubiquitylated proteins, and these peptides can then be identified by standard mass spectrometry approaches. This technique has led to the identification of >50,000 ubiquitylation sites in human cells and quantitative information about how many of these sites are altered upon exposure to diverse proteotoxic stressors. In addition, the diGLY proteomics approach has led to the identification of specific ubiquitin ligase targets. Here we provide a detailed method to interrogate the ubiquitin-modified proteome from any eukaryotic organism or tissue.
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Affiliation(s)
- Amit Fulzele
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Eric J Bennett
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA.
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196
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Koriyama Y, Furukawa A. S-Nitrosylation Regulates Cell Survival and Death in the Central Nervous System. Neurochem Res 2018; 43:50-58. [DOI: 10.1007/s11064-017-2303-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/25/2017] [Accepted: 05/10/2017] [Indexed: 02/02/2023]
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197
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Kawabe H, Ohtani M, Kurata T, Sakamoto T, Demura T. Protein S-Nitrosylation Regulates Xylem Vessel Cell Differentiation in Arabidopsis. PLANT & CELL PHYSIOLOGY 2018; 59:17-29. [PMID: 29040725 DOI: 10.1093/pcp/pcx151] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 10/04/2017] [Indexed: 05/07/2023]
Abstract
Post-translational modifications of proteins have important roles in the regulation of protein activity. One such modification, S-nitrosylation, involves the covalent binding of nitric oxide (NO)-related species to a cysteine residue. Recent work showed that protein S-nitrosylation has crucial functions in plant development and environmental responses. In the present study, we investigated the importance of protein S-nitrosylation for xylem vessel cell differentiation using a forward genetics approach. We performed ethyl methanesulfonate mutagenesis of a transgenic Arabidopsis 35S::VND7-VP16-GR line in which the activity of VASCULAR-RELATED NAC-DOMAIN7 (VND7), a key transcription factor involved in xylem vessel cell differentiation, can be induced post-translationally by glucocorticoid treatment, with the goal of obtaining suppressor mutants that failed to differentiate ectopic xylem vessel cells; we named these mutants suppressor of ectopic vessel cell differentiation induced by VND7 (seiv) mutants. We found the seiv1 mutant to be a recessive mutant in which ectopic xylem cell differentiation was inhibited, especially in aboveground organs. In seiv1 mutants, a single nucleic acid substitution (G to A) leading to an amino acid substitution (E36K) was present in the gene encoding S-NITROSOGLUTATHIONE REDUCTASE 1 (GSNOR1), which regulates the turnover of the natural NO donor, S-nitrosoglutathione. An in vitro S-nitrosylation assay revealed that VND7 can be S-nitrosylated at Cys264 and Cys320 located near the transactivation activity-related domains, which were shown to be important for transactivation activity of VND7 by transient reporter assay. Our results suggest crucial roles for GSNOR1-regulated protein S-nitrosylation in xylem vessel cell differentiation, partly through the post-translational modification of VND7.
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Affiliation(s)
- Harunori Kawabe
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Misato Ohtani
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Tetsuya Kurata
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Tomoaki Sakamoto
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Taku Demura
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
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198
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Izquierdo-Álvarez A, Tello D, Cabrera-García JD, Martínez-Ruiz A. Identification of S-Nitrosylated and Reversibly Oxidized Proteins by Fluorescence Switch and Complementary Techniques. Methods Mol Biol 2018; 1747:73-87. [PMID: 29600452 DOI: 10.1007/978-1-4939-7695-9_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
S-nitrosylation and other reversible oxidative posttranslational modifications of proteins are part of the nonclassical mechanisms of nitric oxide signaling. The biotin switch technique for specifically labeling S-nitrosylated proteins opened the way to proteomic identification of these modifications. Since then, several variations and adaptations of the original method have been applied.We describe here the protocols of several techniques that can be used for the proteomic identification of these modifications, as well as for the detailed characterization of the modification of individual proteins. The fluorescence switch technique allows the proteomic identification of S-nitrosylated proteins based on their fluorescent labeling coupled to electrophoretic separation, as well as the comparison of the overall modification in different samples. The redox fluorescence switch is an adaptation to detect all the proteins reversibly oxidized in cysteine residues. We also describe the protocols of complementary techniques that allow comparing the extent of modification of individual proteins in several conditions by biotin switch, and the identification of modified residues by differential labeling adapted for mass spectrometry identification.
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Affiliation(s)
- Alicia Izquierdo-Álvarez
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain
- Biomechanics Section, KU Leuven, Leuven, Belgium
| | - Daniel Tello
- Unidad de Investigación, Hospital Santa Cristina, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - J Daniel Cabrera-García
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain
| | - Antonio Martínez-Ruiz
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.
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Maines E, Piccoli G, Pascarella A, Colucci F, Burlina AB. Inherited hyperammonemias: a Contemporary view on pathogenesis and diagnosis. Expert Opin Orphan Drugs 2017. [DOI: 10.1080/21678707.2018.1409108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Evelina Maines
- Pediatric Unit, Provincial Centre for Rare Diseases, Department of Women’s and Children’s Health, Azienda Provinciale per i Servizi Sanitari, Trento, Italy
| | - Giovanni Piccoli
- CIBIO - Centre for integrative biology, Università degli Studi di Trento, Italy & Dulbecco Telethon Institute, Trento, Italy
| | - Antonia Pascarella
- Division of Inherited Metabolic Diseases, Reference Centre Expanded Newborn Screening, Department of Women’s and Children’s Health, University Hospital, Padova, Italy
| | - Francesca Colucci
- Division of Inherited Metabolic Diseases, Reference Centre Expanded Newborn Screening, Department of Women’s and Children’s Health, University Hospital, Padova, Italy
| | - Alberto B. Burlina
- Division of Inherited Metabolic Diseases, Reference Centre Expanded Newborn Screening, Department of Women’s and Children’s Health, University Hospital, Padova, Italy
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200
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Abstract
SIGNIFICANCE Glutathione metabolism is comparable to a jigsaw puzzle with too many pieces. It is supposed to comprise (i) the reduction of disulfides, hydroperoxides, sulfenic acids, and nitrosothiols, (ii) the detoxification of aldehydes, xenobiotics, and heavy metals, and (iii) the synthesis of eicosanoids, steroids, and iron-sulfur clusters. In addition, glutathione affects oxidative protein folding and redox signaling. Here, I try to provide an overview on the relevance of glutathione-dependent pathways with an emphasis on quantitative data. Recent Advances: Intracellular redox measurements reveal that the cytosol, the nucleus, and mitochondria contain very little glutathione disulfide and that oxidative challenges are rapidly counterbalanced. Genetic approaches suggest that iron metabolism is the centerpiece of the glutathione puzzle in yeast. Furthermore, recent biochemical studies provide novel insights on glutathione transport processes and uncoupling mechanisms. CRITICAL ISSUES Which parts of the glutathione puzzle are most relevant? Does this explain the high intracellular concentrations of reduced glutathione? How can iron-sulfur cluster biogenesis, oxidative protein folding, or redox signaling occur at high glutathione concentrations? Answers to these questions not only seem to depend on the organism, cell type, and subcellular compartment but also on different ideologies among researchers. FUTURE DIRECTIONS A rational approach to compare the relevance of glutathione-dependent pathways is to combine genetic and quantitative kinetic data. However, there are still many missing pieces and too little is known about the compartment-specific repertoire and concentration of numerous metabolites, substrates, enzymes, and transporters as well as rate constants and enzyme kinetic patterns. Gathering this information might require the development of novel tools but is crucial to address potential kinetic competitions and to decipher uncoupling mechanisms to solve the glutathione puzzle. Antioxid. Redox Signal. 27, 1130-1161.
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Affiliation(s)
- Marcel Deponte
- Department of Parasitology, Ruprecht-Karls University , Heidelberg, Germany
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