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Chakraborty S, Choudhuri A, Mishra A, Sengupta R. The hunt for transnitrosylase. Nitric Oxide 2024; 152:31-47. [PMID: 39299646 DOI: 10.1016/j.niox.2024.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/04/2024] [Accepted: 09/16/2024] [Indexed: 09/22/2024]
Abstract
The biochemical interplay between antioxidants and pro-oxidants maintains the redox homeostatic balance of the cell, which, when perturbed to moderate or high extents, has been implicated in the onset and/or progression of chronic diseases such as diabetes mellitus, cancer, and neurodegenerative diseases. Thioredoxin, glutaredoxin, and lipoic acid-like thiol oxidoreductase systems constitute a unique ensemble of robust cellular antioxidant defenses, owing to their indispensable roles as S-denitrosylases, S-deglutathionylases, and disulfide reductants in maintaining a reduced free thiol state with biological relevance. Thus, in cells subjected to nitrosative stress, cellular antioxidants will S-denitrosylate their cognate S-nitrosoprotein substrates, rather than participate in trans-S-nitrosylation via protein-protein interactions. Researchers have been at the forefront of vaguely establishing the concept of 'transnitrosylation' and its influence on pathophysiology with experimental evidence from in vitro studies that lack proper biochemical logic. The suggestive and reiterative use of antioxidants as transnitrosylases in the scientific literature leaves us on a cliffhanger with several open-ended questions that prompted us to 'hunt' for scientific logic behind the trans-S-nitrosylation chemistry. Given the gravity of the situation and to look at the bigger picture of 'trans-S-nitrosylation', we aim to present a novel attempt at justifying the hesitance in accepting antioxidants as capable of transnitrosylating their cognate protein partners and reflecting on the need to resolve the controversy that would be crucial from the perspective of understanding therapeutic outcomes involving such cellular antioxidants in disease pathogenesis. Further characterization is required to identify the regulatory mechanisms or conditions where an antioxidant like Trx, Grx, or DJ-1 can act as a cellular transnitrosylase.
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Affiliation(s)
- Surupa Chakraborty
- Amity Institute of Biotechnology Kolkata, Amity University Kolkata, Action Area II, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India
| | - Ankita Choudhuri
- Amity Institute of Biotechnology Kolkata, Amity University Kolkata, Action Area II, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India
| | - Akansha Mishra
- Amity Institute of Biotechnology Kolkata, Amity University Kolkata, Action Area II, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India
| | - Rajib Sengupta
- Amity Institute of Biotechnology Kolkata, Amity University Kolkata, Action Area II, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India.
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2
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Shcholok T, Eftekharpour E. Insights into the Multifaceted Roles of Thioredoxin-1 System: Exploring Knockout Murine Models. BIOLOGY 2024; 13:180. [PMID: 38534450 DOI: 10.3390/biology13030180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 03/28/2024]
Abstract
Redox balance is increasingly identified as a major player in cellular signaling. A fundamentally simple reaction of oxidation and reduction of cysteine residues in cellular proteins is the central concept in this complex regulatory mode of protein function. Oxidation of key cysteine residues occurs at the physiological levels of reactive oxygen species (ROS), but they are reduced by a supply of thiol antioxidant molecules including glutathione, glutaredoxin, and thioredoxin. While these molecules show complex compensatory roles in experimental conditions, transgenic animal models provide a comprehensive picture to pinpoint the role of each antioxidant. In this review, we have specifically focused on the available literature on thioredoxin-1 system transgenic models that include thioredoxin and thioredoxin reductase proteins. As the identification of thioredoxin protein targets is technically challenging, the true contribution of this system in maintaining cellular balance remains unidentified, including the role of this system in the brain.
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Affiliation(s)
- Tetiana Shcholok
- Department of Physiology and Pathophysiology, University of Manitoba, 631-BMSB, 745 Bannatyne Ave, Winnipeg, MB R3E 0J9, Canada
| | - Eftekhar Eftekharpour
- Department of Physiology and Pathophysiology, University of Manitoba, 631-BMSB, 745 Bannatyne Ave, Winnipeg, MB R3E 0J9, Canada
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3
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Falco JA, Wynia-Smith SL, McCoy J, Smith BC, Weerapana E. Identification of Protein Targets of S-Nitroso-Coenzyme A-Mediated S-Nitrosation Using Chemoproteomics. ACS Chem Biol 2024; 19:193-207. [PMID: 38159293 PMCID: PMC11154738 DOI: 10.1021/acschembio.3c00654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
S-Nitrosation is a cysteine post-translational modification fundamental to cellular signaling. This modification regulates protein function in numerous biological processes in the nervous, cardiovascular, and immune systems. Small molecule or protein nitrosothiols act as mediators of NO signaling by transferring the NO group (formally NO+) to a free thiol on a target protein through a transnitrosation reaction. The protein targets of specific transnitrosating agents and the extent and functional effects of S-nitrosation on these target proteins have been poorly characterized. S-nitroso-coenzyme A (CoA-SNO) was recently identified as a mediator of endogenous S-nitrosation. Here, we identified direct protein targets of CoA-SNO-mediated transnitrosation using a competitive chemical-proteomic approach that quantified the extent of modification on 789 cysteine residues in response to CoA-SNO. A subset of cysteines displayed high susceptibility to modification by CoA-SNO, including previously uncharacterized sites of S-nitrosation. We further validated and functionally characterized the functional effects of S-nitrosation on the protein targets phosphofructokinase (platelet type), ATP citrate synthase, and ornithine aminotransferase.
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Affiliation(s)
- Julia A. Falco
- Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA
| | - Sarah L. Wynia-Smith
- Department of Biochemistry, Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - James McCoy
- Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA
| | - Brian C. Smith
- Department of Biochemistry, Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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4
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Chakraborty S, Choudhuri A, Mishra A, Bhattacharyya C, Billiar TR, Stoyanovsky DA, Sengupta R. Nitric oxide and thioredoxin modulate the activity of caspase 9 in HepG2 cells. Biochim Biophys Acta Gen Subj 2023; 1867:130452. [PMID: 37652366 PMCID: PMC10592080 DOI: 10.1016/j.bbagen.2023.130452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The interdependent and finely tuned balance between the well-established redox-based modification, S-nitrosylation, and its counteractive mechanism of S-nitrosothiol degradation, i.e., S-denitrosylation of biological protein or non-protein thiols defines the cellular fate in the context of redox homeostasis. S-nitrosylation of cysteine residues by S-nitrosoglutathione, S-nitroso-L-cysteine-like physiological and S-nitroso-L-cysteine ethyl ester-like synthetic NO donors inactivate Caspase-3, 8, and 9, thereby hindering their apoptotic activity. However, spontaneous restoration of their activity upon S-denitrosylation of S-nitrosocaspases into their reduced, free thiol active states, aided by the members of the ubiquitous cellular redoxin (thioredoxin/ thioredoxin reductase/ NADPH) and low molecular weight dithiol (lipoic acid/ lipoamide dehydrogenase/ dihydrolipoic acid/ NADPH) systems imply a direct relevance to their proteolytic activities and further downstream signaling cascades. Additionally, our previous and current findings offer crucial insight into the concept of redundancy between thioredoxin and lipoic acid systems, and the redox-modulated control of the apoptotic and proteolytic activity of caspases, triggering their cyto- and neurotoxic effects in response to nitro-oxidative stress. Thus, this might lay the foundation for the exogenous introduction of precise and efficient NO or related donor drug delivery systems that can directly participate in catering to the S-(de)-nitrosylation-mediated functional outcomes of the cysteinyl proteases in pathophysiological settings.
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Affiliation(s)
- Surupa Chakraborty
- Amity Institute of Biotechnology, Amity University, Kolkata 700135, West Bengal, India
| | - Ankita Choudhuri
- Amity Institute of Biotechnology, Amity University, Kolkata 700135, West Bengal, India
| | - Akansha Mishra
- Amity Institute of Biotechnology, Amity University, Kolkata 700135, West Bengal, India
| | - Camelia Bhattacharyya
- Amity Institute of Biotechnology, Amity University, Kolkata 700135, West Bengal, India
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | - Rajib Sengupta
- Amity Institute of Biotechnology, Amity University, Kolkata 700135, West Bengal, India; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA.
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Kalinina EV, Novichkova MD. S-Glutathionylation and S-Nitrosylation as Modulators of Redox-Dependent Processes in Cancer Cell. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:924-943. [PMID: 37751864 DOI: 10.1134/s0006297923070064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 09/28/2023]
Abstract
Development of oxidative/nitrosative stress associated with the activation of oncogenic pathways results from the increase in the generation of reactive oxygen and nitrogen species (ROS/RNS) in tumor cells, where they can have a dual effect. At high concentrations, ROS/RNS cause cell death and limit tumor growth at certain phases of its development, while their low amounts promote oxidative/nitrosative modifications of key redox-dependent residues in regulatory proteins. The reversibility of such modifications as S-glutathionylation and S-nitrosylation that proceed through the electrophilic attack of ROS/RNS on nucleophilic Cys residues ensures the redox-dependent switch in the activity of signaling proteins, as well as the ability of these compounds to control cell proliferation and programmed cell death. The content of S-glutathionylated and S-nitrosylated proteins is controlled by the balance between S-glutathionylation/deglutathionylation and S-nitrosylation/denitrosylation, respectively, and depends on the cellular redox status. The extent of S-glutathionylation and S-nitrosylation of protein targets and their ratio largely determine the status and direction of signaling pathways in cancer cells. The review discusses the features of S-glutathionylation and S-nitrosylation reactions and systems that control them in cancer cells, as well as their relationship with redox-dependent processes and tumor growth.
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Papaleo E, Tiberti M, Arnaudi M, Pecorari C, Faienza F, Cantwell L, Degn K, Pacello F, Battistoni A, Lambrughi M, Filomeni G. TRAP1 S-nitrosylation as a model of population-shift mechanism to study the effects of nitric oxide on redox-sensitive oncoproteins. Cell Death Dis 2023; 14:284. [PMID: 37085483 PMCID: PMC10121659 DOI: 10.1038/s41419-023-05780-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 03/13/2023] [Accepted: 03/27/2023] [Indexed: 04/23/2023]
Abstract
S-nitrosylation is a post-translational modification in which nitric oxide (NO) binds to the thiol group of cysteine, generating an S-nitrosothiol (SNO) adduct. S-nitrosylation has different physiological roles, and its alteration has also been linked to a growing list of pathologies, including cancer. SNO can affect the function and stability of different proteins, such as the mitochondrial chaperone TRAP1. Interestingly, the SNO site (C501) of TRAP1 is in the proximity of another cysteine (C527). This feature suggests that the S-nitrosylated C501 could engage in a disulfide bridge with C527 in TRAP1, resembling the well-known ability of S-nitrosylated cysteines to resolve in disulfide bridge with vicinal cysteines. We used enhanced sampling simulations and in-vitro biochemical assays to address the structural mechanisms induced by TRAP1 S-nitrosylation. We showed that the SNO site induces conformational changes in the proximal cysteine and favors conformations suitable for disulfide bridge formation. We explored 4172 known S-nitrosylated proteins using high-throughput structural analyses. Furthermore, we used a coarse-grained model for 44 protein targets to account for protein flexibility. This resulted in the identification of up to 1248 proximal cysteines, which could sense the redox state of the SNO site, opening new perspectives on the biological effects of redox switches. In addition, we devised two bioinformatic workflows ( https://github.com/ELELAB/SNO_investigation_pipelines ) to identify proximal or vicinal cysteines for a SNO site with accompanying structural annotations. Finally, we analyzed mutations in tumor suppressors or oncogenes in connection with the conformational switch induced by S-nitrosylation. We classified the variants as neutral, stabilizing, or destabilizing for the propensity to be S-nitrosylated and undergo the population-shift mechanism. The methods applied here provide a comprehensive toolkit for future high-throughput studies of new protein candidates, variant classification, and a rich data source for the research community in the NO field.
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Affiliation(s)
- Elena Papaleo
- Cancer Structural Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark.
- Cancer Systems Biology, Section for Bioinformatics, Department of Health and Technology, Technical University of Denmark, 2800, Lyngby, Denmark.
| | - Matteo Tiberti
- Cancer Structural Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
| | - Matteo Arnaudi
- Cancer Structural Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
- Cancer Systems Biology, Section for Bioinformatics, Department of Health and Technology, Technical University of Denmark, 2800, Lyngby, Denmark
| | - Chiara Pecorari
- Redox Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
| | - Fiorella Faienza
- Department of Biology, University of Rome Tor Vergata, 00133, Rome, Italy
| | - Lisa Cantwell
- Cancer Structural Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kristine Degn
- Cancer Systems Biology, Section for Bioinformatics, Department of Health and Technology, Technical University of Denmark, 2800, Lyngby, Denmark
| | - Francesca Pacello
- Department of Biology, University of Rome Tor Vergata, 00133, Rome, Italy
| | - Andrea Battistoni
- Department of Biology, University of Rome Tor Vergata, 00133, Rome, Italy
| | - Matteo Lambrughi
- Cancer Structural Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
| | - Giuseppe Filomeni
- Redox Biology, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
- Department of Biology, University of Rome Tor Vergata, 00133, Rome, Italy
- Center for Healthy Aging, Copenhagen University, 2200, Copenhagen, Denmark
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Cui C, Shu P, Sadeghian T, Younis W, Li H, Beuve A. Inhibitory Peptide of Soluble Guanylyl Cyclase/Trx1 Interface Blunts the Dual Redox Signaling Functions of the Complex. Antioxidants (Basel) 2023; 12:antiox12040906. [PMID: 37107281 PMCID: PMC10135718 DOI: 10.3390/antiox12040906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/29/2023] Open
Abstract
Soluble guanylyl cyclase (GC1) and oxido-reductase thioredoxin (Trx1) form a complex that mediates two NO signaling pathways as a function of the redox state of cells. Under physiological conditions, reduced Trx1 (rTrx1) supports the canonical NO-GC1-cGMP pathway by protecting GC1 activity from thiol oxidation. Under oxidative stress, the NO-cGMP pathway is disrupted by the S-nitrosation of GC1 (addition of a NO group to a cysteine). In turn, SNO-GC1 initiates transnitrosation cascades, using oxidized thioredoxin (oTrx1) as a nitrosothiol relay. We designed an inhibitory peptide that blocked the interaction between GC1 and Trx1. This inhibition resulted in the loss of a) the rTrx1 enhancing effect of GC1 cGMP-forming activity in vitro and in cells and its ability to reduce the multimeric oxidized GC1 and b) GC1's ability to fully reduce oTrx1, thus identifying GC1 novel reductase activity. Moreover, an inhibitory peptide blocked the transfer of S-nitrosothiols from SNO-GC1 to oTrx1. In Jurkat T cells, oTrx1 transnitrosates procaspase-3, thereby inhibiting caspase-3 activity. Using the inhibitory peptide, we demonstrated that S-nitrosation of caspase-3 is the result of a transnitrosation cascade initiated by SNO-GC1 and mediated by oTrx1. Consequently, the peptide significantly increased caspase-3 activity in Jurkat cells, providing a promising therapy for some cancers.
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Affiliation(s)
- Chuanlong Cui
- School of Graduate Studies, Newark Health Science Campus, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
- Department of Physiology, Pharmacology and Neurosciences, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Ping Shu
- Department of Physiology, Pharmacology and Neurosciences, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Tanaz Sadeghian
- School of Graduate Studies, Newark Health Science Campus, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Waqas Younis
- Department of Physiology, Pharmacology and Neurosciences, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Hong Li
- Center for Advanced Proteomics Research, Department of Microbiology, Biochemistry and Molecular Genetics, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Annie Beuve
- Department of Physiology, Pharmacology and Neurosciences, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
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Duncan RS, Keightley A, Lopez AA, Hall CW, Koulen P. Proteome changes in a human retinal pigment epithelial cell line during oxidative stress and following antioxidant treatment. Front Immunol 2023; 14:1138519. [PMID: 37153596 PMCID: PMC10154683 DOI: 10.3389/fimmu.2023.1138519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/27/2023] [Indexed: 05/09/2023] Open
Abstract
Age related macular degeneration (AMD) is the most common cause of blindness in the elderly. Oxidative stress contributes to retinal pigment epithelium (RPE) dysfunction and cell death thereby leading to AMD. Using improved RPE cell model systems, such as human telomerase transcriptase-overexpressing (hTERT) RPE cells (hTERT-RPE), pathophysiological changes in RPE during oxidative stress can be better understood. Using this model system, we identified changes in the expression of proteins involved in the cellular antioxidant responses after induction of oxidative stress. Some antioxidants such as vitamin E (tocopherols and tocotrienols) are powerful antioxidants that can reduce oxidative damage in cells. Alpha-tocopherol (α-Toc or αT) and gamma-tocopherol (γ-Toc or γT) are well-studied tocopherols, but signaling mechanisms underlying their respective cytoprotective properties may be distinct. Here, we determined what effect oxidative stress, induced by extracellularly applied tBHP in the presence and absence of αT and/or γT, has on the expression of antioxidant proteins and related signaling networks. Using proteomics approaches, we identified differential protein expression in cellular antioxidant response pathways during oxidative stress and after tocopherol treatment. We identified three groups of proteins based on biochemical function: glutathione metabolism/transfer, peroxidases and redox-sensitive proteins involved in cytoprotective signaling. We found that oxidative stress and tocopherol treatment resulted in unique changes in these three groups of antioxidant proteins indicate that αT and γT independently and by themselves can induce the expression of antioxidant proteins in RPE cells. These results provide novel rationales for potential therapeutic strategies to protect RPE cells from oxidative stress.
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Affiliation(s)
- R. Scott Duncan
- Vision Research Center, Department of Ophthalmology, University of Missouri – Kansas City, School of Medicine, Kansas City, MO, United States
| | - Andrew Keightley
- Vision Research Center, Department of Ophthalmology, University of Missouri – Kansas City, School of Medicine, Kansas City, MO, United States
| | - Adam A. Lopez
- Vision Research Center, Department of Ophthalmology, University of Missouri – Kansas City, School of Medicine, Kansas City, MO, United States
| | - Conner W. Hall
- Vision Research Center, Department of Ophthalmology, University of Missouri – Kansas City, School of Medicine, Kansas City, MO, United States
| | - Peter Koulen
- Vision Research Center, Department of Ophthalmology, University of Missouri – Kansas City, School of Medicine, Kansas City, MO, United States
- Department of Biomedical Sciences, University of Missouri – Kansas City, School of Medicine, Kansas City, MO, United States
- *Correspondence: Peter Koulen,
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Ma S, Xia T, Wang X, Wang H. Identification and validation of biomarkers based on cellular senescence in mild cognitive impairment. Front Aging Neurosci 2023; 15:1139789. [PMID: 37187578 PMCID: PMC10176455 DOI: 10.3389/fnagi.2023.1139789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/30/2023] [Indexed: 05/17/2023] Open
Abstract
Background Mild cognitive impairment (MCI), a syndrome defined as decline of cognitive function greater than expected for an individual's age and education level, occurs in up to 22.7% of elderly patients in United States, causing the heavy psychological and economic burdens to families and society. Cellular senescence (CS) is a stress response that accompanies permanent cell-cycle arrest, which has been reported to be a fundamental pathological mechanism of many age-related diseases. This study aims to explore biomarkers and potential therapeutic targets in MCI based on CS. Methods The mRNA expression profiles of peripheral blood samples from patients in MCI and non-MCI group were download from gene expression omnibus (GEO) database (GSE63060 for training and GSE18309 for external validation), CS-related genes were obtained from CellAge database. Weighted gene co-expression network analysis (WGCNA) was conducted to discover the key relationships behind the co-expression modules. The differentially expressed CS-related genes would be obtained through overlapping among the above datasets. Then, pathway and GO enrichment analyses were performed to further elucidate the mechanism of MCI. The protein-protein interaction network was used to extract hub genes and the logistic regression was performed to distinguish the MCI patients from controls. The hub gene-drug network, hub gene-miRNA network as well as transcription factor-gene regulatory network were used to analyze potential therapeutic targets for MCI. Results Eight CS-related genes were identified as key gene signatures in MCI group, which were mainly enriched in the regulation of response to DNA damage stimulus, Sin3 complex and transcription corepressor activity. The receiver operating characteristic curves of logistic regression diagnostic model were constructed and presented great diagnostic value in both training and validation set. Conclusion Eight CS-related hub genes - SMARCA4, GAPDH, SMARCB1, RUNX1, SRC, TRIM28, TXN, and PRPF19 - serve as candidate biomarkers for MCI and display the excellent diagnostic value. Furthermore, we also provide a theoretical basis for targeted therapy against MCI through the above hub genes.
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Affiliation(s)
- Songmei Ma
- Department of Anesthesiology, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Department of Anesthesiology, The First People’s Hospital of Shangqiu, Shangqiu, Henan, China
| | - Tong Xia
- Department of Anesthesiology, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
| | - Xinyi Wang
- Department of Anesthesiology, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, Tianjin, China
| | - Haiyun Wang
- Department of Anesthesiology, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, Tianjin, China
- *Correspondence: Haiyun Wang,
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The Role of NO/sGC/cGMP/PKG Signaling Pathway in Regulation of Platelet Function. Cells 2022; 11:cells11223704. [PMID: 36429131 PMCID: PMC9688146 DOI: 10.3390/cells11223704] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022] Open
Abstract
Circulating blood platelets are controlled by stimulatory and inhibitory factors, and a tightly regulated equilibrium between these two opposing processes is essential for normal platelet and vascular function. NO/cGMP/ Protein Kinase G (PKG) pathways play a highly significant role in platelet inhibition, which is supported by a large body of studies and data. This review focused on inconsistent and controversial data of NO/sGC/cGMP/PKG signaling in platelets including sources of NO that activate sGC in platelets, the role of sGC/PKG in platelet inhibition/activation, and the complexity of the regulation of platelet inhibitory mechanisms by cGMP/PKG pathways. In conclusion, we suggest that the recently developed quantitative phosphoproteomic method will be a powerful tool for the analysis of PKG-mediated effects. Analysis of phosphoproteins in PKG-activated platelets will reveal many new PKG substrates. A future detailed analysis of these substrates and their involvement in different platelet inhibitory pathways could be a basis for the development of new antiplatelet drugs that may target only specific aspects of platelet functions.
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11
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Cui C, Wu C, Shu P, Liu T, Li H, Beuve A. Soluble guanylyl cyclase mediates noncanonical nitric oxide signaling by nitrosothiol transfer under oxidative stress. Redox Biol 2022; 55:102425. [PMID: 35961098 PMCID: PMC9372771 DOI: 10.1016/j.redox.2022.102425] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/20/2022] [Accepted: 07/29/2022] [Indexed: 11/28/2022] Open
Abstract
Soluble guanylyl cyclase (GC1) is an α/β heterodimer producing cGMP when stimulated by nitric oxide (NO). The NO-GC1-cGMP pathway is essential for cardiovascular homeostasis but is disrupted by oxidative stress, which causes GC1 desensitization to NO by heme oxidation and S-nitrosation (SNO) of specific cysteines. We discovered that under these conditions, GC1-α subunit increases cellular S-nitrosation via transfer of nitrosothiols to other proteins (transnitrosation) in cardiac and smooth muscle cells. One of the GC1 SNO-targets was the oxidized form of Thioredoxin1 (oTrx1), which is unidirectionally transnitrosated by GC1 with αC610 as a SNO-donor. Because oTrx1 itself drives transnitrosation, we sought and identified SNO-proteins targeted by both GC1 and Trx1. We found that transnitrosation of the small GTPase RhoA by SNO-GC1 requires oTrx1 as a nitrosothiol relay, suggesting a SNO-GC1→oTrx1→RhoA cascade. The RhoA signaling pathway, which is antagonized by the canonical NO-cGMP pathway, was alternatively inhibited by GC1-α-dependent S-nitrosation under oxidative conditions. We propose that SNO-GC1, via transnitrosation, mediates adaptive responses triggered by oxidation of the canonical NO-cGMP pathway.
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Affiliation(s)
- Chuanlong Cui
- Rutgers School of Graduate Studies, Newark Health Science, Newark, NJ, 07103, USA; Department of Physiology, Pharmacology and Neuroscience, New Jersey Medical School at Rutgers, Newark, NJ, 07103, USA
| | - Changgong Wu
- Thermo Fisher Scientific, Somerset, NJ, 08873, USA
| | - Ping Shu
- Department of Physiology, Pharmacology and Neuroscience, New Jersey Medical School at Rutgers, Newark, NJ, 07103, USA
| | - Tong Liu
- Center for Advanced Proteomics Research, Department of Microbiology, Biochemistry and Molecular Genetics, New Jersey Medical School at Rutgers, Newark, NJ, 07103, USA
| | - Hong Li
- Center for Advanced Proteomics Research, Department of Microbiology, Biochemistry and Molecular Genetics, New Jersey Medical School at Rutgers, Newark, NJ, 07103, USA
| | - Annie Beuve
- Department of Physiology, Pharmacology and Neuroscience, New Jersey Medical School at Rutgers, Newark, NJ, 07103, USA.
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Hasan AA, Kalinina E, Tatarskiy V, Shtil A. The Thioredoxin System of Mammalian Cells and Its Modulators. Biomedicines 2022; 10:biomedicines10071757. [PMID: 35885063 PMCID: PMC9313168 DOI: 10.3390/biomedicines10071757] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/16/2022] [Accepted: 07/19/2022] [Indexed: 12/21/2022] Open
Abstract
Oxidative stress involves the increased production and accumulation of free radicals, peroxides, and other metabolites that are collectively termed reactive oxygen species (ROS), which are produced as by-products of aerobic respiration. ROS play a significant role in cell homeostasis through redox signaling and are capable of eliciting damage to macromolecules. Multiple antioxidant defense systems have evolved to prevent dangerous ROS accumulation in the body, with the glutathione and thioredoxin/thioredoxin reductase (Trx/TrxR) systems being the most important. The Trx/TrxR system has been used as a target to treat cancer through the thiol–disulfide exchange reaction mechanism that results in the reduction of a wide range of target proteins and the generation of oxidized Trx. The TrxR maintains reduced Trx levels using NADPH as a co-substrate; therefore, the system efficiently maintains cell homeostasis. Being a master regulator of oxidation–reduction processes, the Trx-dependent system is associated with cell proliferation and survival. Herein, we review the structure and catalytic properties of the Trx/TrxR system, its role in cellular signaling in connection with other redox systems, and the factors that modulate the Trx system.
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Affiliation(s)
- Aseel Ali Hasan
- T.T. Berezov Department of Biochemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia;
| | - Elena Kalinina
- T.T. Berezov Department of Biochemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia;
- Correspondence: ; Tel.: +7-495-434-62-05
| | - Victor Tatarskiy
- Laboratory of Molecular Oncobiology, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov Street, 119334 Moscow, Russia;
| | - Alexander Shtil
- Laboratory of Tumor Cell Death, Blokhin National Medical Research Center of Oncology, 24 Kashirskoye Shosse, 115478 Moscow, Russia;
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13
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Xu L, Su X, Liu Z, Zhou A. Predicted Immune-Related Genes and Subtypes in Systemic Lupus Erythematosus Based on Immune Infiltration Analysis. DISEASE MARKERS 2022; 2022:8911321. [PMID: 35864995 PMCID: PMC9296307 DOI: 10.1155/2022/8911321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 12/07/2022]
Abstract
Objective The present investigation is aimed at identifying key immune-related genes linked with SLE and their roles using integrative analysis of publically available gene expression datasets. Methods Four gene expression datasets pertaining to SLE, 2 from whole blood and 2 experimental PMBC, were sourced from GEO. Shared differentially expressed genes (DEG) were determined as SLE-related genes. Immune cell infiltration analysis was performed using CIBERSORT, and case samples were subjected to k-means cluster analysis using high-abundance immune cells. Key immune-related SLE genes were identified using correlation analysis with high-abundance immune cells and subjected to functional enrichment analysis for enriched Gene Ontology Biological Processes and KEGG pathways. A PPI network of genes interacting with the key immune-related SLE genes was constructed. LASSO regression analysis was performed to identify the most significant key immune-related SLE genes, and correlation with clinicopathological features was examined. Results 309 SLE-related genes were identified and found functionally enriched in several pathways related to regulation of viral defenses and T cell functions. k-means cluster analysis identified 2 sample clusters which significantly differed in monocytes, dendritic cell resting, and neutrophil abundance. 65 immune-related SLE genes were identified, functionally enriched in immune response-related signaling, antigen receptor-mediated signaling, and T cell receptor signaling, along with Th17, Th1, and Th2 cell differentiation, IL-17, NF-kappa B, and VEGF signaling pathways. LASSO regression identified 9 key immune-related genes: DUSP7, DYSF, KCNA3, P2RY10, S100A12, SLC38A1, TLR2, TSR2, and TXN. Imputed neutrophil percentage was consistent with their expression pattern, whereas anti-Ro showed the inverse pattern as gene expression. Conclusions Comprehensive bioinformatics analyses revealed 9 key immune-related genes and their associated functions highly pertinent to SLE pathogenesis, subtypes, and identified valuable candidates for experimental research.
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Affiliation(s)
- Lin Xu
- Department of Nephrology, The Affiliated Taian City Centeral Hospital of Qingdao University, Tai'an 271000, Shandong Province, China
| | - Xiaoyan Su
- Intensive Care Unit, The Affiliated Taian City Centeral Hospital of Qingdao University, Tai'an, Shandong Province, China
| | - Zhongcheng Liu
- Department of Neurosurgery, The First People's Hospital of Taian, Tai'an city, Shandong Province, China
| | - Aihong Zhou
- Department of Rheumatology Immunology, The Second Affiliated Hospital of Shandong First Medical University, Shandong Province, China
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14
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Almeida VS, Miller LL, Delia JPG, Magalhães AV, Caruso IP, Iqbal A, Almeida FCL. Deciphering the Path of S-nitrosation of Human Thioredoxin: Evidence of an Internal NO Transfer and Implication for the Cellular Responses to NO. Antioxidants (Basel) 2022; 11:antiox11071236. [PMID: 35883729 PMCID: PMC9311519 DOI: 10.3390/antiox11071236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 01/27/2023] Open
Abstract
Nitric oxide (NO) is a free radical with a signaling capacity. Its cellular functions are achieved mainly through S-nitrosation where thioredoxin (hTrx) is pivotal in the S-transnitrosation to specific cellular targets. In this study, we use NMR spectroscopy and mass spectrometry to follow the mechanism of S-(trans)nitrosation of hTrx. We describe a site-specific path for S-nitrosation by measuring the reactivity of each of the 5 cysteines of hTrx using cysteine mutants. We showed the interdependence of the three cysteines in the nitrosative site. C73 is the most reactive and is responsible for all S-transnitrosation to other cellular targets. We observed NO internal transfers leading to C62 S-nitrosation, which serves as a storage site for NO. C69-SNO only forms under nitrosative stress, leading to hTrx nuclear translocation.
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Affiliation(s)
- Vitor S. Almeida
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
- National Center for Structural Biology and Bioimaging (CENABIO), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil
- Institute of Chemistry, Rural Federal University of Rio de Janeiro (UFRRJ), Seropédica 23897-000, Brazil
| | - Lara L. Miller
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
| | - João P. G. Delia
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
| | - Augusto V. Magalhães
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
| | - Icaro P. Caruso
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
- Institute of Chemistry, Rural Federal University of Rio de Janeiro (UFRRJ), Seropédica 23897-000, Brazil
- Multiuser Center for Biomolecular Innovation (CMIB), Department of Physics, Institute of Biosciences, Letters and Exact Sciences (IBILCE), São Paulo State University (UNESP), São José do Rio Preto 15054-000, Brazil
| | - Anwar Iqbal
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
- Department of Chemical Sciences, University of Lakki Marwat, Lakki Marwat 28420, Pakistan
| | - Fabio C. L. Almeida
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, Brazil; (V.S.A.); (L.L.M.); (J.P.G.D.); (A.V.M.); (I.P.C.); (A.I.)
- Correspondence:
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15
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TXN inhibitor impedes radioresistance of colorectal cancer cells with decreased ALDH1L2 expression via TXN/NF-κB signaling pathway. Br J Cancer 2022; 127:637-648. [PMID: 35597868 PMCID: PMC9381770 DOI: 10.1038/s41416-022-01835-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 04/13/2022] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background Colorectal cancer (CRC) is prevalent worldwide and is often challenged by treatment failure and recurrence due to resistance to radiotherapy. Here, we aimed to identify the elusive underlying molecular mechanisms of radioresistance in CRC. Methods Weighted gene co-expression network analysis was used to identify potential radiation-related genes. Colony formation and comet assays and multi-target single-hit survival and xenograft animal models were used to validate the results obtained from the bioinformatic analysis. Immunohistochemistry was performed to examine the clinical characteristics of ALDH1L2. Co-immunoprecipitation, immunofluorescence and flow cytometry were used to understand the molecular mechanisms underlying radioresistance. Results Bioinformatic analysis, in vitro, and in vivo experiments revealed that ALDH1L2 is a radiation-related gene, and a decrease in its expression induces radioresistance in CRC cells by inhibiting ROS-mediated apoptosis. Patients with low ALDH1L2 expression exhibit resistance to radiotherapy. Mechanistically, ALDH1L2 interacts with thioredoxin (TXN) and regulates the downstream NF-κB signaling pathway. PX-12, the TXN inhibitor, overcomes radioresistance due to decreased ALDH1L2. Conclusions Our results provide valuable insights into the potential role of ALDH1L2 in CRC radiotherapy. We propose that the simultaneous application of TXN inhibitors and radiotherapy would significantly ameliorate the clinical outcomes of patients with CRC having low ALDH1L2. ![]()
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16
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Li X, Yang G, Zhang W, Qin B, Ye Z, Shi H, Zhao X, Chen Y, Song B, Mei Z, Zhao Q, Wang F. USP13: Multiple Functions and Target Inhibition. Front Cell Dev Biol 2022; 10:875124. [PMID: 35445009 PMCID: PMC9014248 DOI: 10.3389/fcell.2022.875124] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/08/2022] [Indexed: 12/13/2022] Open
Abstract
As a deubiquitination (DUB) enzyme, ubiquitin-specific protease 13 (USP13) is involved in a myriad of cellular processes, such as mitochondrial energy metabolism, autophagy, DNA damage response, and endoplasmic reticulum-associated degradation (ERAD), by regulating the deubiquitination of diverse key substrate proteins. Thus, dysregulation of USP13 can give rise to the occurrence and development of plenty of diseases, in particular malignant tumors. Given its implications in the stabilization of disease-related proteins and oncology targets, considerable efforts have been committed to the discovery of inhibitors targeting USP13. Here, we summarize an overview of the recent advances of the structure, function of USP13, and its relations to diseases, as well as discovery and development of inhibitors, aiming to provide the theoretical basis for investigation of the molecular mechanism of USP13 action and further development of more potent druggable inhibitors.
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Affiliation(s)
- Xiaolong Li
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Ge Yang
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Wenyao Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Biying Qin
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Zifan Ye
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Huijing Shi
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Xinmeng Zhao
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yihang Chen
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Bowei Song
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Ziqing Mei
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | | | - Feng Wang
- Key Laboratory of Molecular Medicine and Biotherapy, Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing, China
- *Correspondence: Feng Wang,
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17
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Sharapov MG, Gudkov SV, Lankin VZ. Hydroperoxide-Reducing Enzymes in the Regulation of Free-Radical Processes. BIOCHEMISTRY. BIOKHIMIIA 2021; 86:1256-1274. [PMID: 34903155 DOI: 10.1134/s0006297921100084] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The review presents current concepts of the molecular mechanisms of oxidative stress development and describes main stages of the free-radical reactions in oxidative stress. Endogenous and exogenous factors of the oxidative stress development, including dysfunction of cell oxidoreductase systems, as well as the effects of various external physicochemical factors, are discussed. The review also describes the main components of the antioxidant defense system and stages of its evolution, with a special focus on peroxiredoxins, glutathione peroxidases, and glutathione S-transferases, which share some phylogenetic, structural, and catalytic properties. The substrate specificity, as well as the similarities and differences in the catalytic mechanisms of these enzymes, are discussed in detail. The role of peroxiredoxins, glutathione peroxidases, and glutathione S-transferases in the regulation of hydroperoxide-mediated intracellular and intercellular signaling and interactions of these enzymes with receptors and non-receptor proteins are described. An important contribution of hydroperoxide-reducing enzymes to the antioxidant protection and regulation of such cell processes as growth, differentiation, and apoptosis is demonstrated.
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Affiliation(s)
- Mars G Sharapov
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia.
| | - Sergey V Gudkov
- Prokhorov Institute of General Physics, Russian Academy of Sciences, Moscow, 119991, Russia.,Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, 603022, Russia.,All-Russian Research Institute of Phytopathology, Bolshiye Vyazemy, 143050, Russia
| | - Vadim Z Lankin
- National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, Moscow, 121552, Russia
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18
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Almeida VS, Iqbal A, Almeida FCL. 1H, 15N and 13C backbone and side-chain assignments of reduced and S-nitrosated C62only mutant of human thioredoxin. BIOMOLECULAR NMR ASSIGNMENTS 2021; 15:261-265. [PMID: 33751377 DOI: 10.1007/s12104-021-10015-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 03/07/2021] [Indexed: 06/12/2023]
Abstract
Thioredoxins are ubiquitous and conserved small proteins. The redox-active site is composed of highly conserved Cys32 and Cys35. In higher eukaryotes, thioredoxin evolved to a gain of function in nitrosative control, with 3 extra cysteines, Cys62, Cys69, and Cys73. Human thioredoxin 1 (hTrx) is directly involved in cellular signal transduction through S-nitrosation. The understanding of the mechanism of S-nitrosation is essential. Here we produced a mutant of hTrx containing only Cys62 (C62only). We report the almost full 1H, 15N, and 13C chemical shift assignment of the reduced and S-nitrosated C62only. This study will help to measure the reactivity Cys62 toward S-nitrosants and the stability of S-nitrosated Cys62.
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Affiliation(s)
- Vitor S Almeida
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM) and National Center for Structural Biology and Bioimaging (CENABIO), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, 21941-590, Brazil
- Institute of Chemistry, Rural Federal University of Rio de Janeiro (UFRRJ), Seropédica, RJ, 23897-000, Brazil
| | - Anwar Iqbal
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM) and National Center for Structural Biology and Bioimaging (CENABIO), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, 21941-590, Brazil
| | - Fabio C L Almeida
- Institute of Medical Biochemistry Leopoldo de Meis (IBqM) and National Center for Structural Biology and Bioimaging (CENABIO), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, 21941-590, Brazil.
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19
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Kolbert Z, Lindermayr C. Computational prediction of NO-dependent posttranslational modifications in plants: Current status and perspectives. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:851-861. [PMID: 34536898 DOI: 10.1016/j.plaphy.2021.09.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/04/2021] [Accepted: 09/08/2021] [Indexed: 05/11/2023]
Abstract
The perception and transduction of nitric oxide (NO) signal is achieved by NO-dependent posttranslational modifications (PTMs) among which S-nitrosation and tyrosine nitration has biological significance. In plants, 100-1000 S-nitrosated and tyrosine nitrated proteins have been identified so far by mass spectrometry. The determination of NO-modified protein targets/amino acid residues is often methodologically challenging. In the past decade, the growing demand for the knowledge of S-nitrosated or tyrosine nitrated sites has motivated the introduction of bioinformatics tools. For predicting S-nitrosation seven computational tools have been developed (GPS-SNO, SNOSite, iSNO-PseACC, iSNO-AAPAir, PSNO, PreSNO, RecSNO). Four predictors have been developed for indicating tyrosine nitration sites (GPS-YNO2, iNitro-Tyr, PredNTS, iNitroY-Deep), and one tool (DeepNitro) predicts both NO-dependent PTMs. The advantage of these computational tools is the fast provision of large amount of information. In this review, the available software tools have been tested on plant proteins in which S-nitrosated or tyrosine nitrated sites have been experimentally identified. The predictors showed distinct performance and there were differences from the experimental results partly due to the fact that the three-dimensional protein structure is not taken into account by the computational tools. Nevertheless, the predictors excellently establish experiments, and it is suggested to apply all available tools on target proteins and compare their results. In the future, computational prediction must be developed further to improve the precision with which S-nitrosation/tyrosine nitration-sites are identified.
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Affiliation(s)
- Zsuzsanna Kolbert
- Department of Plant Biology, University of Szeged, Közép fasor 52, 6726, Szeged, Hungary.
| | - Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstaedter Landstr. 1, D-85764, Oberschleißheim, München, Germany.
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20
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Nakamura T, Oh CK, Zhang X, Tannenbaum SR, Lipton SA. Protein Transnitrosylation Signaling Networks Contribute to Inflammaging and Neurodegenerative Disorders. Antioxid Redox Signal 2021; 35:531-550. [PMID: 33957758 PMCID: PMC8388249 DOI: 10.1089/ars.2021.0081] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Significance: Physiological concentrations of nitric oxide (NO•) and related reactive nitrogen species (RNS) mediate multiple signaling pathways in the nervous system. During inflammaging (chronic low-grade inflammation associated with aging) and in neurodegenerative diseases, excessive RNS contribute to synaptic and neuronal loss. "NO signaling" in both health and disease is largely mediated through protein S-nitrosylation (SNO), a redox-based posttranslational modification with "NO" (possibly in the form of nitrosonium cation [NO+]) reacting with cysteine thiol (or, more properly, thiolate anion [R-S-]). Recent Advances: Emerging evidence suggests that S-nitrosylation occurs predominantly via transnitros(yl)ation. Mechanistically, the reaction involves thiolate anion, as a nucleophile, performing a reversible nucleophilic attack on a nitroso nitrogen to form an SNO-protein adduct. Prior studies identified transnitrosylation reactions between glyceraldehyde-3-phosphate dehydrogenase (GAPDH)-nuclear proteins, thioredoxin-caspase-3, and X-linked inhibitor of apoptosis (XIAP)-caspase-3. Recently, we discovered that enzymes previously thought to act in completely disparate biochemical pathways can transnitrosylate one another during inflammaging in an unexpected manner to mediate neurodegeneration. Accordingly, we reported a concerted tricomponent transnitrosylation network from Uch-L1-to-Cdk5-to-Drp1 that mediates synaptic damage in Alzheimer's disease. Critical Issues: Transnitrosylation represents a critical chemical mechanism for transduction of redox-mediated events to distinct subsets of proteins. Although thousands of thiol-containing proteins undergo S-nitrosylation, how transnitrosylation regulates a myriad of neuronal attributes is just now being uncovered. In this review, we highlight recent progress in the study of the chemical biology of transnitrosylation between proteins as a mechanism of disease. Future Directions: We discuss future areas of study of protein transnitrosylation that link our understanding of aging, inflammation, and neurodegenerative diseases. Antioxid. Redox Signal. 35, 531-550.
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Affiliation(s)
- Tomohiro Nakamura
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA
| | - Chang-Ki Oh
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA
| | - Xu Zhang
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA
| | - Steven R Tannenbaum
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Stuart A Lipton
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA.,Department of Neurosciences, University of California San Diego School of Medicine, La Jolla, California, USA
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21
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Nakamura T, Oh CK, Zhang X, Lipton SA. Protein S-nitrosylation and oxidation contribute to protein misfolding in neurodegeneration. Free Radic Biol Med 2021; 172:562-577. [PMID: 34224817 PMCID: PMC8579830 DOI: 10.1016/j.freeradbiomed.2021.07.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/19/2022]
Abstract
Neurodegenerative disorders like Alzheimer's disease and Parkinson's disease are characterized by progressive degeneration of synapses and neurons. Accumulation of misfolded/aggregated proteins represents a pathological hallmark of most neurodegenerative diseases, potentially contributing to synapse loss and neuronal damage. Emerging evidence suggests that misfolded proteins accumulate in the diseased brain at least in part as a consequence of excessively generated reactive oxygen species (ROS) and reactive nitrogen species (RNS). Mechanistically, not only disease-linked genetic mutations but also known risk factors for neurodegenerative diseases, such as aging and exposure to environmental toxins, can accelerate production of ROS/RNS, which contribute to protein misfolding - in many cases mimicking the effect of rare genetic mutations known to be linked to the disease. This review will focus on the role of RNS-dependent post-translational modifications, such as S-nitrosylation and tyrosine nitration, in protein misfolding and aggregation. Specifically, we will discuss molecular mechanisms whereby RNS disrupt the activity of the cellular protein quality control machinery, including molecular chaperones, autophagy/lysosomal pathways, and the ubiquitin-proteasome system (UPS). Because chronic accumulation of misfolded proteins can trigger mitochondrial dysfunction, synaptic damage, and neuronal demise, further characterization of RNS-mediated protein misfolding may establish these molecular events as therapeutic targets for intervention in neurodegenerative diseases.
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Affiliation(s)
- Tomohiro Nakamura
- Neurodegeneration New Medicines Center and Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA.
| | - Chang-Ki Oh
- Neurodegeneration New Medicines Center and Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Xu Zhang
- Neurodegeneration New Medicines Center and Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Stuart A Lipton
- Neurodegeneration New Medicines Center and Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA; Department of Neurosciences, University of California San Diego, School of Medicine, La Jolla, CA, 92093, USA.
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22
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Chen G, An N, Ye W, Huang S, Chen Y, Hu Z, Shen E, Zhu J, Gong W, Tong G, Zhu Y, Fang L, Cai C, Li X, Kim K, Jin L, Xiao J, Cong W. bFGF alleviates diabetes-associated endothelial impairment by downregulating inflammation via S-nitrosylation pathway. Redox Biol 2021; 41:101904. [PMID: 33706169 PMCID: PMC7972985 DOI: 10.1016/j.redox.2021.101904] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/26/2021] [Accepted: 02/15/2021] [Indexed: 01/02/2023] Open
Abstract
Protein S-nitrosylation is a reversible protein modification implicated in both physiological and pathophysiological regulation of protein function. However, the relationship between dysregulated S-nitrosylation homeostasis and diabetic vascular complications remains incompletely understood. Here, we demonstrate that basic fibroblast growth factor (bFGF) is a key regulatory link between S-nitrosylation homeostasis and inflammation, and alleviated endothelial dysfunction and angiogenic defects in diabetes. Subjecting human umbilical vein endothelial cells (HUVECs) to hyperglycemia and hyperlipidemia significantly decreased endogenous S-nitrosylated proteins, including S-nitrosylation of inhibitor kappa B kinase β (IKKβC179) and transcription factor p65 (p65C38), which was alleviated by bFGF co-treatment. Pretreatment with carboxy-PTIO (c-PTIO), a nitric oxide scavenger, abolished bFGF-mediated S-nitrosylation increase and endothelial protection. Meanwhile, nitrosylation-resistant IKKβC179S and p65C38S mutants exacerbated endothelial dysfunction in db/db mice, and in cultured HUVECs subjected to hyperglycemia and hyperlipidemia. Mechanistically, bFGF-mediated increase of S-nitrosylated IKKβ and p65 was attributed to synergistic effects of increased endothelial nitric oxide synthase (eNOS) and thioredoxin (Trx) activity. Taken together, the endothelial protective effect of bFGF under hyperglycemia and hyperlipidemia can be partially attributed to its role in suppressing inflammation via the S-nitrosylation pathway.
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Affiliation(s)
- Gen Chen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China; College of Pharmacy, Chonnam National University, Gwangju, 500-757, South Korea
| | - Ning An
- Department of Pharmacy, Ningbo Medical Center Lihuili Hospital, Ningbo, 315041, PR China
| | - Weijian Ye
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, PR China
| | - Shuai Huang
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Yunjie Chen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Zhicheng Hu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Enzhao Shen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Junjie Zhu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Wenjie Gong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Gaozan Tong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Yu Zhu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Lexuan Fang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Chunyuan Cai
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Xiaokun Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China
| | - Kwonseop Kim
- College of Pharmacy, Chonnam National University, Gwangju, 500-757, South Korea.
| | - Litai Jin
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China.
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China.
| | - Weitao Cong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000, PR China.
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Wurm CJ, Lindermayr C. Nitric oxide signaling in the plant nucleus: the function of nitric oxide in chromatin modulation and transcription. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:808-818. [PMID: 33128375 DOI: 10.1093/jxb/eraa404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Nitric oxide (NO) is involved in a vast number of physiologically important processes in plants, such as organ development, stress resistance, and immunity. Transduction of NO bioactivity is generally achieved by post-translational modification of proteins, with S-nitrosation of cysteine residues as the predominant form. While traditionally the subcellular location of the factors involved was of lesser importance, recent studies identified the connection between NO and transcriptional activity and thereby raised the question about the route of NO into the nuclear sphere. Identification of NO-affected transcription factors and chromatin-modifying histone deacetylases implicated the important role of NO signaling in the plant nucleus as a regulator of epigenetic mechanisms and gene transcription. Here, we discuss the relationship between NO and its directly regulated protein targets in the nuclear environment, focusing on S-nitrosated chromatin modulators and transcription factors.
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Affiliation(s)
- Christoph J Wurm
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, Germany
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24
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Chatterji A, Sengupta R. Cellular S-denitrosylases: Potential role and interplay of Thioredoxin, TRP14, and Glutaredoxin systems in thiol-dependent protein denitrosylation. Int J Biochem Cell Biol 2021; 131:105904. [DOI: 10.1016/j.biocel.2020.105904] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 12/11/2022]
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25
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The Chaperone BAG6 Regulates Cellular Homeostasis between Autophagy and Apoptosis by Holding LC3B. iScience 2020; 23:101708. [PMID: 33241194 PMCID: PMC7674511 DOI: 10.1016/j.isci.2020.101708] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 07/27/2020] [Accepted: 10/16/2020] [Indexed: 12/15/2022] Open
Abstract
AMFR/gp78 and USP13 are a pair of ubiquitin ligase and deubiquitinase that ensure the accuracy of endoplasmic reticulum-associated degradation (ERAD). Depletion of USP13 leads to caspase activation and cleavage of the ERAD chaperone BAG6, which is reversed by knockdown of AMFR. However, the mechanism and physiological relevance of this regulation are still unclear. Here, by using the NEDDylator system, we screened out TXN as a substrate of AMFR and USP13 and showed its involvement in regulating CASP3 activation and BAG6 cleavage. Furthermore, we showed that the cleaved N-terminal BAG6 is located in the cytosol and interacts with both LC3B-I and unprocessed form of LC3B (Pro-LC3B) through the LIR1 motif to suppress autophagy. An NMR approach verified the direct interaction between BAG6 LIR1 and LC3B-I or Pro-LC3B. Collectively, our findings uncover a mechanism that converts BAG6 from an ERAD regulator to an autophagy tuner and apoptosis inducer during ER stress.
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26
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Zhang X, Wang J, Zubarev RA. Slight Deuterium Enrichment in Water Acts as an Antioxidant: Is Deuterium a Cell Growth Regulator? Mol Cell Proteomics 2020; 19:1790-1804. [PMID: 32769093 PMCID: PMC7664117 DOI: 10.1074/mcp.ra120.002231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/04/2020] [Indexed: 11/06/2022] Open
Abstract
Small admixtures in water, e.g. of metal ions, often act as cell growth regulators. Here we report that enrichment of deuterium content in water, normally found at 8 mm concentration, two-three folds increases cell proliferation and lowers the oxidative stress level as well. Acting as an anti-oxidant, deuterium-enriched water prevents the toxic effect of such oxidative agents as hydrogen peroxide and auranofin. This action is opposite to that of deuterium depletion that is known to suppress cell growth and induce oxidative stress in mitochondria. We thus hypothesize that deuterium may be a natural cell growth regulator that controls mitochondrial oxidation-reduction balance. Because growth acceleration is reduced approximately by half by addition to water a minute amount (0.15%) of 18O isotope, at least part of the deuterium effect on cell growth can be explained by the isotopic resonance phenomenon. A slight (≈2-fold) enrichment of deuterium in water accelerates human cell growth. Quantitative MS based proteomics determined changes in protein abundances and redox states and found that deuterium-enriched water acts mainly through decreasing ROS production in mitochondria. This action is opposite to that of deuterium depletion that suppresses cell growth by inducing oxidative stress. Thus deuterium may be a natural cell growth regulator that controls mitochondrial oxidation-reduction balance. The role of isotopic resonance in this effect was validated by further experiments on bacteria.
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Affiliation(s)
- Xuepei Zhang
- Division of Physiological Chemistry I, Dept. of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Jin Wang
- Division of Physiological Chemistry I, Dept. of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden; Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shannxi, P.R. China
| | - Roman A Zubarev
- Division of Physiological Chemistry I, Dept. of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden; SciLIfeLab, Stockholm, Sweden; Department of Pharmacological & Technological Chemistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
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27
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Aroca A, Gotor C, Bassham DC, Romero LC. Hydrogen Sulfide: From a Toxic Molecule to a Key Molecule of Cell Life. Antioxidants (Basel) 2020; 9:E621. [PMID: 32679888 PMCID: PMC7402122 DOI: 10.3390/antiox9070621] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
Hydrogen sulfide (H2S) has always been considered toxic, but a huge number of articles published more recently showed the beneficial biochemical properties of its endogenous production throughout all regna. In this review, the participation of H2S in many physiological and pathological processes in animals is described, and its importance as a signaling molecule in plant systems is underlined from an evolutionary point of view. H2S quantification methods are summarized and persulfidation is described as the underlying mechanism of action in plants, animals and bacteria. This review aims to highlight the importance of its crosstalk with other signaling molecules and its fine regulation for the proper function of the cell and its survival.
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Affiliation(s)
- Angeles Aroca
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, USA;
- Institute of Plant Biochemistry and Photosynthesis, University of Seville and CSIC, 41092 Seville, Spain; (C.G.); (L.C.R.)
| | - Cecilia Gotor
- Institute of Plant Biochemistry and Photosynthesis, University of Seville and CSIC, 41092 Seville, Spain; (C.G.); (L.C.R.)
| | - Diane C. Bassham
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, USA;
| | - Luis C. Romero
- Institute of Plant Biochemistry and Photosynthesis, University of Seville and CSIC, 41092 Seville, Spain; (C.G.); (L.C.R.)
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28
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Benhar M. Oxidants, Antioxidants and Thiol Redox Switches in the Control of Regulated Cell Death Pathways. Antioxidants (Basel) 2020; 9:antiox9040309. [PMID: 32290499 PMCID: PMC7222211 DOI: 10.3390/antiox9040309] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/05/2020] [Accepted: 04/08/2020] [Indexed: 12/16/2022] Open
Abstract
It is well appreciated that biological reactive oxygen and nitrogen species such as hydrogen peroxide, superoxide and nitric oxide, as well as endogenous antioxidant systems, are important modulators of cell survival and death in diverse organisms and cell types. In addition, oxidative stress, nitrosative stress and dysregulated cell death are implicated in a wide variety of pathological conditions, including cancer, cardiovascular and neurological diseases. Therefore, much effort is devoted to elucidate the molecular mechanisms linking oxidant/antioxidant systems and cell death pathways. This review is focused on thiol redox modifications as a major mechanism by which oxidants and antioxidants influence specific regulated cell death pathways in mammalian cells. Growing evidence indicates that redox modifications of cysteine residues in proteins are involved in the regulation of multiple cell death modalities, including apoptosis, necroptosis and pyroptosis. In addition, recent research suggests that thiol redox switches play a role in the crosstalk between apoptotic and necrotic forms of regulated cell death. Thus, thiol-based redox circuits provide an additional layer of control that determines when and how cells die.
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Affiliation(s)
- Moran Benhar
- Department of Biochemistry, Rappaport Institute for Research in the Medical Sciences, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
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29
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Rusetskaya NY, Fedotov IV, Koftina VA, Borodulin VB. Selenium Compounds in Redox Regulation of Inflammation and Apoptosis. BIOCHEMISTRY (MOSCOW), SUPPLEMENT SERIES B: BIOMEDICAL CHEMISTRY 2019. [DOI: 10.1134/s1990750819040085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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30
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Boudreau MW, Peh J, Hergenrother PJ. Procaspase-3 Overexpression in Cancer: A Paradoxical Observation with Therapeutic Potential. ACS Chem Biol 2019; 14:2335-2348. [PMID: 31260254 PMCID: PMC6858495 DOI: 10.1021/acschembio.9b00338] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Many anticancer strategies rely on the promotion of apoptosis in cancer cells as a means to shrink tumors. Crucial for apoptotic function are executioner caspases, most notably caspase-3, that proteolyze a variety of proteins, inducing cell death. Paradoxically, overexpression of procaspase-3 (PC-3), the low-activity zymogen precursor to caspase-3, has been reported in a variety of cancer types. Until recently, this counterintuitive overexpression of a pro-apoptotic protein in cancer has been puzzling. Recent studies suggest subapoptotic caspase-3 activity may promote oncogenic transformation, a possible explanation for the enigmatic overexpression of PC-3. Herein, the overexpression of PC-3 in cancer and its mechanistic basis is reviewed; collectively, the data suggest the potential for exploitation of PC-3 overexpression with PC-3 activators as a targeted anticancer strategy.
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Affiliation(s)
- Matthew W. Boudreau
- Department of Chemistry and Institute for Genomic Biology, University of Illinois at Urbana–Champaign, Urbana, Illinois, United States
| | - Jessie Peh
- Department of Chemistry and Institute for Genomic Biology, University of Illinois at Urbana–Champaign, Urbana, Illinois, United States
| | - Paul J. Hergenrother
- Department of Chemistry and Institute for Genomic Biology, University of Illinois at Urbana–Champaign, Urbana, Illinois, United States
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31
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Rusetskaya NY, Fedotov IV, Koftina VA, Borodulin VB. [Selenium compounds in redox regulation of inflammation and apoptosis]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2019; 65:165-179. [PMID: 31258141 DOI: 10.18097/pbmc20196503165] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Monocytes and macrophages play a key role in the development of inflammation: under the action of lipopolysaccharides (LPS), absorbed from the intestine, monocytes and macrophages form reactive oxygen species (ROS) and cytokines, this leads to the development of oxidative stress, inflammation and/or apoptosis in all types of tissues. In the cells LPS induce an "internal" TLR4-mediated MAP-kinase inflammatory signaling pathway and cytokines through the superfamily of tumor necrosis factor receptor (TNFR) and the "death domain" (DD) initiate an "external" caspase apoptosis cascade or necrosis activation that causes necroptosis. Many of the proteins involved in intracellular signaling cascades (MYD88, ASK1, IKKa/b, NF-kB, AP-1) are redox-sensitive and their activity is regulated by antioxidants thioredoxin, glutaredoxin, nitroredoxin, and glutathione. Oxidation of these signaling proteins induced by ROS enhances the development of inflammation and apoptosis, and their reduction with antioxidants, on the contrary, stabilizes the signaling cascades speed, preventing the vicious circle of oxidative stress, inflammation and apoptosis that follows it. Antioxidant (AO) enzymes thioredoxin reductase (TRXR), glutaredoxin reductase (GLRXR), glutathione reductase (GR) are required for reduction of non-enzymatic antioxidants (thioredoxin, glutaredoxin, nitroredoxin, glutathione), and AO enzymes (SOD, catalase, GPX) are required for ROS deactivation. The key AO enzymes (TRXR and GPX) are selenium-dependent; therefore selenium deficiency leads to a decrease in the body's antioxidant defense, the development of oxidative stress, inflammation, and/or apoptosis in various cell types. Nrf2-Keap1 signaling pathway activated by selenium deficiency and/or oxidative stress is necessary to restore redox homeostasis in the cell. In addition, expression of some genes is changed with selenium deficiency. Consequently, growth and proliferation of cells, their movement, development, death, and survival, as well as the interaction between cells, the redox regulation of intracellular signaling cascades of inflammation and apoptosis, depend on the selenium status of the body. Prophylactic administration of selenium-containing preparations (natural and synthetic (organic and inorganic)) is able to normalize the activity of AO enzymes and the general status of the body. Organic selenium compounds have a high bioavailability and, depending on their concentration, can act both as selenium donors to prevent selenium deficiency and as antitumor drugs due to their toxicity and participation in the regulation of signaling pathways of apoptosis. Known selenorganic compounds diphenyldiselenide and ethaselen share similarity with the Russian organo selenium compound, diacetophenonylselenide (DAPS-25), which serves as a source of bioavailable selenium, exhibits a wide range of biological activity, including antioxidant activity, that governs cell redox balance, inflammation and apoptosis regulation.
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Affiliation(s)
- N Y Rusetskaya
- Razumovsky Saratov State Medical University, Saratov, Russia
| | - I V Fedotov
- Razumovsky Saratov State Medical University, Saratov, Russia
| | - V A Koftina
- Razumovsky Saratov State Medical University, Saratov, Russia
| | - V B Borodulin
- Razumovsky Saratov State Medical University, Saratov, Russia
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32
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Mohammadi F, Soltani A, Ghahremanloo A, Javid H, Hashemy SI. The thioredoxin system and cancer therapy: a review. Cancer Chemother Pharmacol 2019; 84:925-935. [PMID: 31367788 DOI: 10.1007/s00280-019-03912-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/25/2019] [Indexed: 12/01/2022]
Abstract
Thioredoxin (Trx), thioredoxin reductase (TrxR), and NADPH are key members of the Trx system that is involved in redox regulation and antioxidant defense. In recent years, several researchers have provided information about the roles of the Trx system in cancer development and progression. These reports indicated that many tumor cells express high levels of Trx and TrxR, which can be responsible for drug resistance in tumorigenesis. Inhibition of the Trx system may thus contribute to cancer therapy and improving chemotherapeutic agents. There are now a number of effective natural and synthetic inhibitors with chemotherapy applications possessing antitumor activity ranging from oxidative stress induction to apoptosis. In this article, we first described the features and functions of the Trx system and then reviewed briefly its correlations with cancer. Finally, we summarized the present knowledge about the Trx/TrxR inhibitors as anticancer drugs.
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Affiliation(s)
- Fariba Mohammadi
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arash Soltani
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Atefeh Ghahremanloo
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Javid
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Isaac Hashemy
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. .,Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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33
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Wang S, Tan X, Chen P, Zheng S, Ren H, Cai J, Zhou L, Jose PA, Yang J, Zeng C. Role of Thioredoxin 1 in Impaired Renal Sodium Excretion of hD 5 R F173L Transgenic Mice. J Am Heart Assoc 2019; 8:e012192. [PMID: 30957627 PMCID: PMC6507211 DOI: 10.1161/jaha.119.012192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/12/2019] [Indexed: 12/12/2022]
Abstract
Background Dopamine D5 receptor (D5R) plays an important role in the maintenance of blood pressure by regulating renal sodium transport. Our previous study found that human D5R mutant F173L transgenic ( hD 5 R F173L-TG) mice are hypertensive. In the present study, we aimed to investigate the mechanisms causing this renal D5R dysfunction in hD 5 R F173L-TG mice. Methods and Results Compared with wild-type D5R-TG ( hD 5 R WT-TG) mice, hD 5 R F173L-TG mice have higher blood pressure, lower basal urine flow and sodium excretion, and impaired agonist-mediated natriuresis and diuresis. Enhanced reactive oxygen species production in hD 5 R F173L-TG mice is caused, in part, by decreased expression of antioxidant enzymes, including thioredoxin 1 (Trx1). Na+-K+-ATPase activity is increased in mouse renal proximal tubule cells transfected with hD 5 R F173L, but is normalized by treatment with exogenous recombinant human Trx1 protein. Regulation of Trx1 by D5R occurs by the phospholipase C/ protein kinase C (PKC) pathway because upregulation of Trx1 expression by D5R does not occur in renal proximal tubule cells from D1R knockout mice in the presence of a phospholipase C or PKC inhibitor. Fenoldopam, a D1R and D5R agonist, stimulates PKC activity in primary renal proximal tubule cells of hD5R WT -TG mice, but not in those of hD 5 R F173L-TG mice. Hyperphosphorylation of hD5RF173L and its dissociation from Gαs and Gαq are associated with impairment of D5R-mediated inhibition of Na+-K+-ATPase activity in hD 5 R F173L-TG mice. Conclusions These suggest that hD 5 R F173L increases blood pressure, in part, by decreasing renal Trx1 expression and increasing reactive oxygen species production. Hyperphosphorylation of hD5RF173L, with its dissociation from Gαs and Gαq, is the key factor in impaired D5R function of hD 5 R F173L-TG mice.
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Affiliation(s)
- Shaoxiong Wang
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Xiaorong Tan
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Peng Chen
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Shuo Zheng
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Hongmei Ren
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Jin Cai
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Lin Zhou
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
| | - Pedro A. Jose
- Division of Renal Disease & HypertensionDepartments of Medicine and Pharmacology/PhysiologyThe George Washington University School of Medicine and Health SciencesWashingtonDC
| | - Jian Yang
- Department of Clinical NutritionThe Third Affiliated Hospital of Chongqing Medical UniversityChongqingP.R. China
| | - Chunyu Zeng
- Department of CardiologyDaping HospitalArmy Medical University of PLAChongqingP.R. China
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34
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Stomberski CT, Hess DT, Stamler JS. Protein S-Nitrosylation: Determinants of Specificity and Enzymatic Regulation of S-Nitrosothiol-Based Signaling. Antioxid Redox Signal 2019; 30:1331-1351. [PMID: 29130312 PMCID: PMC6391618 DOI: 10.1089/ars.2017.7403] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Protein S-nitrosylation, the oxidative modification of cysteine by nitric oxide (NO) to form protein S-nitrosothiols (SNOs), mediates redox-based signaling that conveys, in large part, the ubiquitous influence of NO on cellular function. S-nitrosylation regulates protein activity, stability, localization, and protein-protein interactions across myriad physiological processes, and aberrant S-nitrosylation is associated with diverse pathophysiologies. Recent Advances: It is recently recognized that S-nitrosylation endows S-nitroso-protein (SNO-proteins) with S-nitrosylase activity, that is, the potential to trans-S-nitrosylate additional proteins, thereby propagating SNO-based signals, analogous to kinase-mediated signaling cascades. In addition, it is increasingly appreciated that cellular S-nitrosylation is governed by dynamically coupled equilibria between SNO-proteins and low-molecular-weight SNOs, which are controlled by a growing set of enzymatic denitrosylases comprising two main classes (high and low molecular weight). S-nitrosylases and denitrosylases, which together control steady-state SNO levels, may be identified with distinct physiology and pathophysiology ranging from cardiovascular and respiratory disorders to neurodegeneration and cancer. CRITICAL ISSUES The target specificity of protein S-nitrosylation and the stability and reactivity of protein SNOs are determined substantially by enzymatic machinery comprising highly conserved transnitrosylases and denitrosylases. Understanding the differential functionality of SNO-regulatory enzymes is essential, and is amenable to genetic and pharmacological analyses, read out as perturbation of specific equilibria within the SNO circuitry. FUTURE DIRECTIONS The emerging picture of NO biology entails equilibria among potentially thousands of different SNOs, governed by denitrosylases and nitrosylases. Thus, to elucidate the operation and consequences of S-nitrosylation in cellular contexts, studies should consider the roles of SNO-proteins as both targets and transducers of S-nitrosylation, functioning according to enzymatically governed equilibria.
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Affiliation(s)
- Colin T Stomberski
- 1 Institute for Transformative Molecular Medicine, Case Western Reserve University, Cleveland, Ohio.,2 Department of Biochemistry, Case Western Reserve University, Cleveland, Ohio
| | - Douglas T Hess
- 1 Institute for Transformative Molecular Medicine, Case Western Reserve University, Cleveland, Ohio.,3 Department of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Jonathan S Stamler
- 2 Department of Biochemistry, Case Western Reserve University, Cleveland, Ohio.,3 Department of Medicine, Case Western Reserve University, Cleveland, Ohio.,4 Harrington Discovery Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
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35
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Islam MI, Nagakannan P, Ogungbola O, Djordjevic J, Albensi BC, Eftekharpour E. Thioredoxin system as a gatekeeper in caspase-6 activation and nuclear lamina integrity: Implications for Alzheimer's disease. Free Radic Biol Med 2019; 134:567-580. [PMID: 30769159 DOI: 10.1016/j.freeradbiomed.2019.02.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/28/2019] [Accepted: 02/10/2019] [Indexed: 02/01/2023]
Abstract
Recent reports in pathophysiology of neurodegenerative diseases (ND) have linked nuclear lamina degradation/deficits to neuronal cell death. Lamin-B1 damage is specifically involved in this process leading to nuclear envelope invagination and heterochromatin rearrangement. The underlying mechanisms involved in these events are not yet defined. In this study, while examining the effect of Thioredoxin-1(Trx1) inhibition on cell death in a model of oxidative stress, we noted robust nuclear invagination in SH-SY5Y cells. Evaluation of nuclear lamina proteins revealed lamin-B1 cleavage that was prevented by caspase-6 (CASP6) inhibitor and exacerbated after pharmacologic/genetic inhibition of Trx1 system, but not after glutathione depletion. Activation of CASP6 was upstream of CASP3/7 activation and its inhibition was sufficient to prevent cell death in our system. The effect of Trx1 redox status on CASP6 activation was assessed by administration of reduced/oxidized forms in cell-free nuclei preparation and purified enzymatic assays. Although reduced Trx1 decreased CASP6 enzymatic activity and lamin-B1 cleavage, the fully oxidized Trx1 showed opposite effects. The enhanced CASP6 activation was also associated with lower levels of DJ-1, a neuroprotective and master regulator of cellular antioxidants. The implication of our findings in ND pathophysiology was strengthened with detection of lower Trx1 levels in the hippocampi tissue of a mouse model of Alzheimer's disease. This coincided with higher CASP6 activation resulting in increased lamin-B1 and DJ-1 depletion. This study provides a first mechanistic explanation for the key regulatory role of Trx1 as a gatekeeper in activation of CASP6 and induction of nuclear invagination, an important player in ND pathophysiology.
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Affiliation(s)
- Md Imamul Islam
- Regenerative Medicine Program and Spinal Cord Research Centre, Canada; Dept. Physiology and Pathophysiology, University of Manitoba, Winnipeg, Canada
| | - Pandian Nagakannan
- Regenerative Medicine Program and Spinal Cord Research Centre, Canada; Dept. Physiology and Pathophysiology, University of Manitoba, Winnipeg, Canada
| | - Olamide Ogungbola
- Regenerative Medicine Program and Spinal Cord Research Centre, Canada; Dept. Physiology and Pathophysiology, University of Manitoba, Winnipeg, Canada
| | - Jelena Djordjevic
- Division of Neurodegenerative Disorders, St. Boniface Hospital Research, Winnipeg, Manitoba, Canada; Department of Pharmacology and Therapeutics, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Benedict C Albensi
- Division of Neurodegenerative Disorders, St. Boniface Hospital Research, Winnipeg, Manitoba, Canada; Department of Pharmacology and Therapeutics, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Eftekhar Eftekharpour
- Regenerative Medicine Program and Spinal Cord Research Centre, Canada; Dept. Physiology and Pathophysiology, University of Manitoba, Winnipeg, Canada.
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Rungratanawanich W, Memo M, Uberti D. Redox Homeostasis and Natural Dietary Compounds: Focusing on Antioxidants of Rice ( Oryza sativa L.). Nutrients 2018; 10:nu10111605. [PMID: 30388764 PMCID: PMC6265930 DOI: 10.3390/nu10111605] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 10/25/2018] [Accepted: 10/26/2018] [Indexed: 12/11/2022] Open
Abstract
Redox homeostasis may be defined as the dynamic equilibrium between electrophiles and nucleophiles to maintain the optimum redox steady state. This mechanism involves complex reactions, including nuclear factor erythroid 2-related factor 2 (Nrf2) pathway, activated by oxidative stress in order to restore the redox balance. The ability to maintain the optimal redox homeostasis is fundamental for preserving physiological functions and preventing phenotypic shift toward pathological conditions. Here, we reviewed mechanisms involved in redox homeostasis and how certain natural compounds regulate the nucleophilic tone. In addition, we focused on the antioxidant properties of rice and particularly on its bioactive compound, γ-oryzanol. It is well known that γ-oryzanol exerts a variety of beneficial effects mediated by its antioxidant properties. Recently, γ-oryzanol was also found as a Nrf2 inducer, resulting in nucleophilic tone regulation and making rice a para-hormetic food.
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Affiliation(s)
- Wiramon Rungratanawanich
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy.
| | - Maurizio Memo
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy.
| | - Daniela Uberti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy.
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Isobavachalcone Induces ROS-Mediated Apoptosis via Targeting Thioredoxin Reductase 1 in Human Prostate Cancer PC-3 Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1915828. [PMID: 30410640 PMCID: PMC6206523 DOI: 10.1155/2018/1915828] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 07/02/2018] [Accepted: 08/01/2018] [Indexed: 02/07/2023]
Abstract
Prostate carcinoma causes a great number of deaths every year; therefore, there is an urgent need to find new drug candidates to treat advanced prostate cancer. Isobavachalcone (IBC) is the chalcone composition of Psoralea corylifolia Linn used in traditional Chinese medicine. Although IBC demonstrates potent anticancer efficacy in numerous types of human cancer cells, the cellular targets of IBC have not been fully defined. In our study, we found that IBC may induce reactive oxygen species- (ROS-) mediated apoptosis via interaction with a selenocysteine (Sec) containing the antioxidant enzyme thioredoxin reductase 1 (TrxR1), and induce lethal endoplasmic reticulum (ER) stress by inhibiting TrxR1 activity and increasing ROS levels in human prostate cancer PC-3 cells. Furthermore, we also observed that knocking down TrxR1 would sensitized cancer cells to IBC treatment. Our study provides evidence for the anticancer mechanism of IBC with TrxR1 as a potential target.
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Bignon E, Allega MF, Lucchetta M, Tiberti M, Papaleo E. Computational Structural Biology of S-nitrosylation of Cancer Targets. Front Oncol 2018; 8:272. [PMID: 30155439 PMCID: PMC6102371 DOI: 10.3389/fonc.2018.00272] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/02/2018] [Indexed: 12/15/2022] Open
Abstract
Nitric oxide (NO) plays an essential role in redox signaling in normal and pathological cellular conditions. In particular, it is well known to react in vivo with cysteines by the so-called S-nitrosylation reaction. S-nitrosylation is a selective and reversible post-translational modification that exerts a myriad of different effects, such as the modulation of protein conformation, activity, stability, and biological interaction networks. We have appreciated, over the last years, the role of S-nitrosylation in normal and disease conditions. In this context, structural and computational studies can help to dissect the complex and multifaceted role of this redox post-translational modification. In this review article, we summarized the current state-of-the-art on the mechanism of S-nitrosylation, along with the structural and computational studies that have helped to unveil its effects and biological roles. We also discussed the need to move new steps forward especially in the direction of employing computational structural biology to address the molecular and atomistic details of S-nitrosylation. Indeed, this redox modification has been so far an underappreciated redox post-translational modification by the computational biochemistry community. In our review, we primarily focus on S-nitrosylated proteins that are attractive cancer targets due to the emerging relevance of this redox modification in a cancer setting.
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Affiliation(s)
- Emmanuelle Bignon
- Computational Biology Laboratory Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Maria Francesca Allega
- Computational Biology Laboratory Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Marta Lucchetta
- Computational Biology Laboratory Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Matteo Tiberti
- Computational Biology Laboratory Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Elena Papaleo
- Computational Biology Laboratory Danish Cancer Society Research Center, Copenhagen, Denmark.,Translational Disease Systems Biology, Faculty of Health and Medical Sciences, Novo Nordisk Foundation Center for Protein Research University of Copenhagen, Copenhagen, Denmark
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Dagnell M, Schmidt EE, Arnér ESJ. The A to Z of modulated cell patterning by mammalian thioredoxin reductases. Free Radic Biol Med 2018; 115:484-496. [PMID: 29278740 PMCID: PMC5771652 DOI: 10.1016/j.freeradbiomed.2017.12.029] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 12/16/2017] [Accepted: 12/21/2017] [Indexed: 12/12/2022]
Abstract
Mammalian thioredoxin reductases (TrxRs) are selenocysteine-containing proteins (selenoproteins) that propel a large number of functions through reduction of several substrates including the active site disulfide of thioredoxins (Trxs). Well-known enzymatic systems that in turn are supported by Trxs and TrxRs include deoxyribonucleotide synthesis through ribonucleotide reductase, antioxidant defense through peroxiredoxins and methionine sulfoxide reductases, and redox modulation of a number of transcription factors. Although these functions may be essential for cells due to crucial roles in maintenance of cell viability and proliferation, findings during the last decade reveal that mammals have major redundancy in their cellular reductive systems. The synthesis of glutathione (GSH) and reductive functions of GSH-dependent pathways typically act in parallel with Trx-dependent pathways, with only one of these systems often being sufficient to support viability. Importantly, this does not imply that a modulation of the Trx system will remain without consequences, even when GSH-dependent pathways remain functional. As suggested by several recent findings, the Trx system in general and the TrxRs in particular, function as key regulators of signaling pathways. In this review article we will discuss findings that collectively suggest that modulation in mammalian systems of cytosolic TrxR1 (TXNRD1) or mitochondrial TrxR2 (TXNRD2) influence cell patterning and cellular stress responses. Effects of lower activities include increased adipogenesis, insulin responsiveness, glycogen accumulation, hyperproliferation, and distorted embryonic development, while increased activities correlate with decreased proliferation and extended lifespan, as well as worse cancer prognosis. The molecular mechanisms that underlie these diverse effects, involving regulation of protein phosphorylation cascades and of key transcription factors that guide cellular differentiation pathways, will be discussed. We conclude that the selenium-dependent oxidoreductases TrxR1 and TrxR2 should be considered as key components of signaling pathways that control cell differentiation and cellular stress responses.
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Affiliation(s)
- Markus Dagnell
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Edward E Schmidt
- Microbiology & Immunology, Montana State University, Bozeman, MT 59718, USA
| | - Elias S J Arnér
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
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40
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Anderson KE, To M, Olzmann JA, Nomura DK. Chemoproteomics-Enabled Covalent Ligand Screening Reveals a Thioredoxin-Caspase 3 Interaction Disruptor That Impairs Breast Cancer Pathogenicity. ACS Chem Biol 2017; 12:2522-2528. [PMID: 28892616 PMCID: PMC6205226 DOI: 10.1021/acschembio.7b00711] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Covalent ligand discovery is a promising strategy to develop small-molecule effectors against therapeutic targets. Recent studies have shown that dichlorotriazines are promising reactive scaffolds that preferentially react with lysines. Here, we have synthesized a series of dichlorotriazine-based covalent ligands and have screened this library to reveal small molecules that impair triple-negative breast cancer cell survival. Upon identifying a lead hit from this screen KEA1-97, we used activity-based protein profiling (ABPP)-based chemoproteomic platforms to identify that this compound targets lysine 72 of thioredoxin-a site previously shown to be important in protein interactions with caspase 3 to inhibit caspase 3 activity and suppress apoptosis. We show that KEA1-97 disrupts the interaction of thioredoxin with caspase 3, activates caspases, and induces apoptosis without affecting thioredoxin activity. Moreover, KEA1-97 impairs in vivo breast tumor xenograft growth. Our study showcases how the screening of covalent ligands can be coupled with ABPP platforms to identify unique anticancer lead and target pairs.
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Affiliation(s)
- Kimberly E Anderson
- Departments of Chemistry, Molecular and Cell Biology, and ‡Nutritional Sciences and Toxicology, University of California, Berkeley , Berkeley, California 94720, United States
| | - Milton To
- Departments of Chemistry, Molecular and Cell Biology, and ‡Nutritional Sciences and Toxicology, University of California, Berkeley , Berkeley, California 94720, United States
| | - James A Olzmann
- Departments of Chemistry, Molecular and Cell Biology, and ‡Nutritional Sciences and Toxicology, University of California, Berkeley , Berkeley, California 94720, United States
| | - Daniel K Nomura
- Departments of Chemistry, Molecular and Cell Biology, and ‡Nutritional Sciences and Toxicology, University of California, Berkeley , Berkeley, California 94720, United States
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41
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Yang H, Zhao N, Lv L, Yan X, Hu S, Xu T. Functional research and molecular mechanism of Kainic acid-induced denitrosylation of thioredoxin-1 in rat hippocampus. Neurochem Int 2017; 108:448-456. [PMID: 28603024 DOI: 10.1016/j.neuint.2017.06.004] [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] [Received: 01/16/2017] [Revised: 05/31/2017] [Accepted: 06/07/2017] [Indexed: 10/19/2022]
Abstract
Thioredoxin-1 (Trx1) has long been recognized as a redox regulator, and is implicated in the inhibition of cell apoptosis. Trx1 is essential for the maintenance of the S-nitrosylation of molecules in cells. The S-nitrosylation of Trx1 is essential for the physiological function such as preservation of the redox regulatory activity. The mechanisms underlying Trx1 denitrosylation induced by kainate acid (KA) injection still remain uncharacterized. Our results showed that the S-nitrosylation levels of Trx1 were decreased subsequent to KA injection and that the glutamate receptor 6 (GluR6) antagonist NS102 could inhibit the denitrosylation of Trx1. Moreover, the denitrosylation of Trx1 following KA treatment could be suppressed by the Fas ligand (FasL) antisense oligodeoxynucleotides (AS-ODNs), the Trx reductase (TrxR) inhibitor dinitrochlorobenzene (DNCB), or the Nitric oxide (NO) donors sodium nitroprusside (SNP) and S-nitrosoglutathione (GSNO). Subsequently, these mechanisms were morphologically validated by cresyl violet staining, in situ TUNEL staining to detect the survival of CA1 and CA3/DG pyramidal neurons. NS102, FasL AS-ODNs, GSNO and SNP could provide neuroprotection of the pyramidal neurons of CA1 and CA3/dentate gyrus (DG) regions by attenuating Trx1 denitrosylation. Our results also showed that the denitrosylation of Trx1 induced by KA injection can active the caspase-3 which results in apoptosis.
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Affiliation(s)
- Hongning Yang
- Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou 221002, China; Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou 221004, China
| | - Ningjun Zhao
- Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou 221002, China; Emergency Center of the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Lanxin Lv
- Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou 221002, China
| | - Xianliang Yan
- Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou 221002, China; Emergency Center of the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China.
| | - Shuqun Hu
- Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou 221002, China.
| | - Tie Xu
- Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou 221002, China; Emergency Center of the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China.
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42
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H₂S-Mediated Protein S-Sulfhydration: A Prediction for Its Formation and Regulation. Molecules 2017; 22:molecules22081334. [PMID: 28800080 PMCID: PMC6152389 DOI: 10.3390/molecules22081334] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/26/2017] [Accepted: 08/04/2017] [Indexed: 11/27/2022] Open
Abstract
Protein S-sulfhydration is a newly discovered post-translational modification of specific cysteine residue(s) in target proteins, which is involved in a broad range of cellular functions and metabolic pathways. By changing local conformation and the final activity of target proteins, S-sulfhydration is believed to mediate most cellular responses initiated by H2S, a novel gasotransmitter. In comparison to protein S-sulfhydration, nitric oxide-mediated protein S-nitrosylation has been extensively investigated, including its formation, regulation, transfer and metabolism. Although the investigation on the regulatory mechanisms associated with protein S-sulfhydration is still in its infancy, accumulated evidence suggested that protein S-sulfhydration may share similar chemical features with protein S-nitrosylation. Glutathione persulfide acts as a major donor for protein S-sulfhydration. Here, we review the present knowledge on protein S-sulfhydration, and also predict its formation and regulation mechanisms based on the knowledge from protein S-nitrosylation.
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43
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Morris G, Walder K, Carvalho AF, Tye SJ, Lucas K, Berk M, Maes M. The role of hypernitrosylation in the pathogenesis and pathophysiology of neuroprogressive diseases. Neurosci Biobehav Rev 2017; 84:453-469. [PMID: 28789902 DOI: 10.1016/j.neubiorev.2017.07.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 07/02/2017] [Accepted: 07/31/2017] [Indexed: 12/12/2022]
Abstract
There is a wealth of data indicating that de novo protein S-nitrosylation in general and protein transnitrosylation in particular mediates the bulk of nitric oxide signalling. These processes enable redox sensing and facilitate homeostatic regulation of redox dependent protein signalling, function, stability and trafficking. Increased S-nitrosylation in an environment of increasing oxidative and nitrosative stress (O&NS) is initially a protective mechanism aimed at maintaining protein structure and function. When O&NS becomes severe, mechanisms governing denitrosylation and transnitrosylation break down leading to the pathological state referred to as hypernitrosylation (HN). Such a state has been implicated in the pathogenesis and pathophysiology of several neuropsychiatric and neurodegenerative diseases and we investigate its potential role in the development and maintenance of neuroprogressive disorders. In this paper, we propose a model whereby the hypernitrosylation of a range of functional proteins and enzymes lead to changes in activity which conspire to produce at least some of the core abnormalities contributing to the development and maintenance of pathology in these illnesses.
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Affiliation(s)
- Gerwyn Morris
- Tir Na Nog, Bryn Road seaside 87, Llanelli, SA152LW, Wales, United Kingdom
| | - Ken Walder
- Deakin University, The Centre for Molecular and Medical Research, School of Medicine, P.O. Box 291, Geelong, 3220, Australia
| | - André F Carvalho
- Department of Clinical Medicine and Translational Psychiatry Research Group, Faculty of Medicine, Federal University of Ceará, 60430-040, Fortaleza, CE, Brazil
| | - Susannah J Tye
- Deakin University, The Centre for Molecular and Medical Research, School of Medicine, P.O. Box 291, Geelong, 3220, Australia; Department of Clinical Medicine and Translational Psychiatry Research Group, Faculty of Medicine, Federal University of Ceará, 60430-040, Fortaleza, CE, Brazil; Deakin University, IMPACT Strategic Research Centre, School of Medicine, P.O. Box 281, Geelong, 3220, Australia; Orygen Youth Health Research Centre and the Centre of Youth Mental Health, The Florey Institute for Neuroscience and Mental Health and the Department of Psychiatry, University of Melbourne, Parkville, 3052, Australia
| | - Kurt Lucas
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
| | - Michael Berk
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, P.O. Box 281, Geelong, 3220, Australia; Orygen Youth Health Research Centre and the Centre of Youth Mental Health, The Florey Institute for Neuroscience and Mental Health and the Department of Psychiatry, University of Melbourne, Parkville, 3052, Australia.
| | - Michael Maes
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, P.O. Box 281, Geelong, 3220, Australia; Department of Psychiatry, Chulalongkorn University, Faculty of Medicine, Bangkok, Thailand; Department of Psychiatry, Medical University of Plovdiv, Plovdiv, Bulgaria
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44
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Nagarajan N, Oka S, Sadoshima J. Modulation of signaling mechanisms in the heart by thioredoxin 1. Free Radic Biol Med 2017; 109:125-131. [PMID: 27993729 PMCID: PMC5462876 DOI: 10.1016/j.freeradbiomed.2016.12.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 12/14/2016] [Indexed: 01/15/2023]
Abstract
Myocardial ischemia/reperfusion and heart failure are the major cardiac conditions in which an imbalance between oxidative stress and anti-oxidant mechanisms is observed. The myocardium has endogenous reducing mechanisms, including the thioredoxin (Trx) and glutathione systems, that act to scavenge reactive oxygen species (ROS) and reduce oxidized proteins. The Trx system consists of Trx, Trx reductase (TrxR), and an electron donor, NADPH, where Trx is maintained in a reduced state in the presence of TrxR and NADPH. Trx1, a major isoform of Trx, is abundantly expressed in the heart and exerts its oxidoreductase activity through conserved Cys32 and Cys35, reducing oxidized proteins through thiol disulfide exchange reactions. In this review, we will focus on molecular targets of Trx1 in the heart, including transcription factors, microRNAs, histone deactylases, and protein kinases. We will then discuss how Trx1 regulates the functions of its targets, thereby affecting the extent of myocardial injury caused by myocardial ischemia/reperfusion and the progression of heart failure.
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Affiliation(s)
- Narayani Nagarajan
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, 185 South Orange Ave, MSB G609, Newark, NJ 07103, USA
| | - Shinichi Oka
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, 185 South Orange Ave, MSB G609, Newark, NJ 07103, USA
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, 185 South Orange Ave, MSB G609, Newark, NJ 07103, USA.
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45
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Wynia-Smith SL, Smith BC. Nitrosothiol formation and S-nitrosation signaling through nitric oxide synthases. Nitric Oxide 2016; 63:52-60. [PMID: 27720836 DOI: 10.1016/j.niox.2016.10.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 08/31/2016] [Accepted: 10/03/2016] [Indexed: 12/16/2022]
Abstract
Nitric oxide (NO) is a gaseous signaling molecule impacting many biological pathways. NO is produced in mammals by three nitric oxide synthase (NOS) isoforms: neuronal (nNOS), endothelial (eNOS), and inducible (iNOS). nNOS and eNOS produce low concentrations of NO for paracrine signaling; NO produced and released from one cell diffuses to a neighboring cell where it binds and activates soluble guanylyl cyclase (sGC). iNOS produces high concentrations of NO using NO toxicity to amplify the innate immune response. Recent work has also defined protein cysteine S-nitrosation as a pathway of sGC-independent NO signaling. Though many studies have shown that S-nitrosation regulates the activity of NOS isoforms and other proteins in vivo, many issues need to be resolved to establish S-nitrosation as a viable signaling mechanism. Several chemical mechanisms result in S-nitrosation including transition metal-catalyzed pathways, NO oxidation followed by thiolate reaction, and thiyl radical recombination with NO. Once formed, nitrosothiols can be transferred between cellular cysteine residues via transnitrosation reactions. However, it is largely unclear how these chemical processes result in selective S-nitrosation of specific cellular cysteine residues. S-nitrosation site selectivity may be imparted via direct interactions or colocalization with NOS isoforms that focus chemical or transnitrosation mechanisms of nitrosothiol formation or transfer. Here, we discuss chemical mechanisms of nitrosothiol formation, S-nitrosation of NOS isoforms, and potential S-nitrosation signaling cascades resulting from NOS S-nitrosation.
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Affiliation(s)
- Sarah L Wynia-Smith
- Department of Biochemistry and Redox Biology Program, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Brian C Smith
- Department of Biochemistry and Redox Biology Program, Medical College of Wisconsin, Milwaukee, WI, USA.
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46
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Samuvel DJ, Shunmugavel A, Singh AK, Singh I, Khan M. S-Nitrosoglutathione ameliorates acute renal dysfunction in a rat model of lipopolysaccharide-induced sepsis. ACTA ACUST UNITED AC 2016; 68:1310-9. [PMID: 27484743 DOI: 10.1111/jphp.12608] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/05/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Sepsis induces an inflammatory response that results in acute renal failure (ARF). The current study is to evaluate the role of S-Nitrosoglutathione (GSNO) in renoprotection from lipopolysaccharide (LPS)-induced sepsis. METHODS Rats were divided to three groups. First group received LPS (5 mg/kg body weight), second group was treated with LPS + GSNO (50 μg/kg body weight), and third group was administered with vehicle (saline). They were sacrificed on day 1 and 3 post-LPS injection. Serum levels of nitric oxide (NO), creatinine and blood urea nitrogen (BUN) were analysed. Tissue morphology, T lymphocyte infiltrations, and the expression of inflammatory (TNF-α, iNOS) and anti-inflammatory (IL-10) mediators as well as glutathione (GSH) levels were determined. KEY FINDING Lipopolysaccharide significantly decreased body weight and increased cellular T lymphocyte infiltration, caspase-3 and iNOS and decreased PPAR-γ in renal tissue. NO, creatinine and BUN were significantly elevated after LPS challenge, and they significantly decreased after GSNO treatment. TNF-α level was found significantly increased in LPS-treated serum and kidney. GSNO treatment of LPS-challenged rats decreased caspase-3, iNOS, TNF-α, T lymphocyte infiltration and remarkably increased levels of IL-10, PPAR-γ and GSH. CONCLUSION GSNO can be used as a renoprotective agent for the treatment of sepsis-induced acute kidney injury.
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Affiliation(s)
- Devadoss J Samuvel
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
| | | | - Avtar K Singh
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Inderjit Singh
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC, USA
| | - Mushfiquddin Khan
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC, USA.
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47
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Longen S, Richter F, Köhler Y, Wittig I, Beck KF, Pfeilschifter J. Quantitative Persulfide Site Identification (qPerS-SID) Reveals Protein Targets of H2S Releasing Donors in Mammalian Cells. Sci Rep 2016; 6:29808. [PMID: 27411966 PMCID: PMC4944133 DOI: 10.1038/srep29808] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 06/21/2016] [Indexed: 12/20/2022] Open
Abstract
H2S is an important signalling molecule involved in diverse biological processes. It mediates the formation of cysteine persulfides (R-S-SH), which affect the activity of target proteins. Like thiols, persulfides show reactivity towards electrophiles and behave similarly to other cysteine modifications in a biotin switch assay. In this manuscript, we report on qPerS-SID a mass spectrometry-based method allowing the isolation of persulfide containing peptides in the mammalian proteome. With this method, we demonstrated that H2S donors differ in their efficacy to induce persulfides in HEK293 cells. Furthermore, data analysis revealed that persulfide formation affects all subcellular compartments and various cellular processes. Negatively charged amino acids appeared more frequently adjacent to cysteines forming persulfides. We confirmed our proteomic data using pyruvate kinase M2 as a model protein and showed that several cysteine residues are prone to persulfide formation finally leading to its inactivation. Taken together, the site-specific identification of persulfides on a proteome scale can help to identify target proteins involved in H2S signalling and enlightens the biology of H2S and its releasing agents.
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Affiliation(s)
- Sebastian Longen
- Pharmazentrum Frankfurt/ZAFES, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Florian Richter
- Functional Proteomics, SFB 815 Core Unit, Goethe University Frankfurt, Frankfurt, Germany
| | - Yvette Köhler
- Pharmazentrum Frankfurt/ZAFES, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Ilka Wittig
- Functional Proteomics, SFB 815 Core Unit, Goethe University Frankfurt, Frankfurt, Germany
| | - Karl-Friedrich Beck
- Pharmazentrum Frankfurt/ZAFES, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Josef Pfeilschifter
- Pharmazentrum Frankfurt/ZAFES, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
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48
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Zhou Y, Wynia-Smith SL, Couvertier SM, Kalous KS, Marletta MA, Smith BC, Weerapana E. Chemoproteomic Strategy to Quantitatively Monitor Transnitrosation Uncovers Functionally Relevant S-Nitrosation Sites on Cathepsin D and HADH2. Cell Chem Biol 2016; 23:727-37. [PMID: 27291402 DOI: 10.1016/j.chembiol.2016.05.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/22/2016] [Accepted: 05/05/2016] [Indexed: 10/25/2022]
Abstract
S-Nitrosoglutathione (GSNO) is an endogenous transnitrosation donor involved in S-nitrosation of a variety of cellular proteins, thereby regulating diverse protein functions. Quantitative proteomic methods are necessary to establish which cysteine residues are most sensitive to GSNO-mediated transnitrosation. Here, a competitive cysteine-reactivity profiling strategy was implemented to quantitatively measure the sensitivity of >600 cysteine residues to transnitrosation by GSNO. This platform identified a subset of cysteine residues with a high propensity for GSNO-mediated transnitrosation. Functional characterization of previously unannotated S-nitrosation sites revealed that S-nitrosation of a cysteine residue distal to the 3-hydroxyacyl-CoA dehydrogenase type 2 (HADH2) active site impaired catalytic activity. Similarly, S-nitrosation of a non-catalytic cysteine residue in the lysosomal aspartyl protease cathepsin D (CTSD) inhibited proteolytic activation. Together, these studies revealed two previously uncharacterized cysteine residues that regulate protein function, and established a chemical-proteomic platform with capabilities to determine substrate specificity of other cellular transnitrosation agents.
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Affiliation(s)
- Yani Zhou
- Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA
| | - Sarah L Wynia-Smith
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | | | - Kelsey S Kalous
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Michael A Marletta
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA; Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
| | - Brian C Smith
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
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49
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Wedmann R, Onderka C, Wei S, Szijártó IA, Miljkovic JL, Mitrovic A, Lange M, Savitsky S, Yadav PK, Torregrossa R, Harrer EG, Harrer T, Ishii I, Gollasch M, Wood ME, Galardon E, Xian M, Whiteman M, Banerjee R, Filipovic MR. Improved tag-switch method reveals that thioredoxin acts as depersulfidase and controls the intracellular levels of protein persulfidation. Chem Sci 2016; 7:3414-3426. [PMID: 27170841 PMCID: PMC4845716 DOI: 10.1039/c5sc04818d] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 02/09/2016] [Indexed: 01/01/2023] Open
Abstract
Hydrogen sulfide (H2S) has emerged as a signalling molecule capable of regulating several important physiological functions such as blood pressure, neurotransmission and inflammation. The mechanisms behind these effects are still largely elusive and oxidative posttranslational modification of cysteine residues (protein persulfidation or S-sulfhydration) has been proposed as the main pathway for H2S-induced biological and pharmacological effects. As a signalling mechanism, persulfidation has to be controlled. Using an improved tag-switch assay for persulfide detection we show here that protein persulfide levels are controlled by the thioredoxin system. Recombinant thioredoxin showed an almost 10-fold higher reactivity towards cysteine persulfide than towards cystine and readily cleaved protein persulfides as well. This reaction resulted in H2S release suggesting that thioredoxin could be an important regulator of H2S levels from persulfide pools. Inhibition of the thioredoxin system caused an increase in intracellular persulfides, highlighting thioredoxin as a major protein depersulfidase that controls H2S signalling. Finally, using plasma from HIV-1 patients that have higher circulatory levels of thioredoxin, we could prove depersulfidase role in vivo.
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Affiliation(s)
- Rudolf Wedmann
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany .
| | - Constantin Onderka
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany .
| | - Shengwei Wei
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany .
| | | | - Jan Lj Miljkovic
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany .
| | | | - Mike Lange
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany .
| | - Sergey Savitsky
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany .
| | - Pramod Kumar Yadav
- Department of Biological Chemistry , University of Michigan , Ann Arbor , USA
| | - Roberta Torregrossa
- University of Exeter Medical School , St. Luke's Campus , Exeter , UK ; Biosciences , College of Life and Environmental Sciences of Biosciences , University of Exeter , Streatham Campus , Exeter , Devon , UK
| | - Ellen G Harrer
- Infectious Diseases Section , Department of Internal Medicine 3 , Universitätsklinikum Erlangen , Friedrich-Alexander-University, Erlangen-Nürnberg , Germany
| | - Thomas Harrer
- Infectious Diseases Section , Department of Internal Medicine 3 , Universitätsklinikum Erlangen , Friedrich-Alexander-University, Erlangen-Nürnberg , Germany
| | - Isao Ishii
- Department of Biochemistry , Graduate School of Pharmaceutical Sciences , Keio University , Tokyo , Japan
| | - Maik Gollasch
- Charité Campus Virchow , Nephrology/Intensive Care , Berlin , Germany
| | - Mark E Wood
- Biosciences , College of Life and Environmental Sciences of Biosciences , University of Exeter , Streatham Campus , Exeter , Devon , UK
| | - Erwan Galardon
- UMR CNRS 8601 , Université Paris Descartes , Sorbonne Paris Cité , Paris , France
| | - Ming Xian
- Department of Chemistry , Washington State University , Pullman , USA
| | - Matthew Whiteman
- University of Exeter Medical School , St. Luke's Campus , Exeter , UK
| | - Ruma Banerjee
- Department of Biological Chemistry , University of Michigan , Ann Arbor , USA
| | - Milos R Filipovic
- Department of Chemistry and Pharmacy , Friedrich-Alexander University of Erlangen-Nuremberg , Erlangen , Germany . ; Université de Bordeaux , IBGC , UMR 5095 , F-33077 Bordeaux , France ; CNRS , IBGC , UMR 5095 , F-33077 Bordeaux , France
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50
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Zhang D, Zhao N, Ma B, Wang Y, Zhang G, Yan X, Hu S, Xu T. Procaspase-9 induces its cleavage by transnitrosylating XIAP via the Thioredoxin system during cerebral ischemia-reperfusion in rats. Sci Rep 2016; 6:24203. [PMID: 27052476 PMCID: PMC4823698 DOI: 10.1038/srep24203] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/21/2016] [Indexed: 12/18/2022] Open
Abstract
Transnitrosylation is an important mechanism by which nitric oxide (NO) modulates cell signaling pathways. For instance, SNO-caspase-3 can transnitrosylate the X-linked inhibitor of apoptosis (XIAP) to enhance apoptosis. XIAP is a potent antagonist of caspase apoptotic activity. Decrease in XIAP activity via nitrosylation results in SNO-XIAP-mediated caspase activation. Considering the functional liaison of procaspase-9 and XIAP, we hypothesized that procaspase-9 nitrosylates XIAP directly. Our data confirmed that cerebral ischemia-reperfusion induced XIAP nitrosylation, procaspase-9 denitrosylation and cleavage. Interestingly, the time courses of the nitrosylation of procaspase-9 and XIAP were negatively correlated, which was more prominent after cerebral ischemia-reperfusion, suggesting a direct interaction. The nitrosylation of XIAP, as well as the denitrosylation and cleavage of procaspase-9, were inhibited by DNCB, TrxR1 AS-ODNs, or TAT-AVPY treatment. Meanwhile, DNCB, TrxR1 AS-ODNs, or TAT-AVPY also inhibited the decrease in hippocampal CA1 neurons induced by ischemia-reperfusion in rats. The denitrosylation and cleavage of procaspase-9 induced by OGD/reoxygenation in SH-SY5Y cells were inhibited when cells were co-transfected with wild-type procaspase-9 and XIAP mutant (C449G). These data suggest that cerebral ischemia-reperfusion induces a transnitrosylation from procaspase-9 to XIAP via the Trx system to consequently cause apoptosis. Additionally, Cys325 is a critical S-nitrosylation site of procaspase-9.
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Affiliation(s)
- Dengyue Zhang
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical College, Xuzhou 221004, China
| | - Ningjun Zhao
- Institute of Emergency Rescue Medicine, Xuzhou Medical College, Xuzhou 221002, China.,Emergency Center of the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - Bin Ma
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical College, Xuzhou 221004, China.,Institute of Emergency Rescue Medicine, Xuzhou Medical College, Xuzhou 221002, China
| | - Yan Wang
- Institute of Emergency Rescue Medicine, Xuzhou Medical College, Xuzhou 221002, China
| | - Gongliang Zhang
- Department of Physiology, College of Basic Medical Science, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xianliang Yan
- Institute of Emergency Rescue Medicine, Xuzhou Medical College, Xuzhou 221002, China.,Emergency Center of the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - Shuqun Hu
- Institute of Emergency Rescue Medicine, Xuzhou Medical College, Xuzhou 221002, China.,Emergency Center of the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - Tie Xu
- Institute of Emergency Rescue Medicine, Xuzhou Medical College, Xuzhou 221002, China.,Emergency Center of the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
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