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Bravo-Chaucanés CP, Abadio AKR, Kioshima ÉS, Felipe MSS, Barbosa JARG. Crystal structure of thioredoxin 1 from Cryptococcus neoformans at 1.8 Å resolution shows unexpected plasticity of the loop preceding the catalytic site. Biochem Biophys Rep 2020; 21:100724. [PMID: 32021910 PMCID: PMC6994535 DOI: 10.1016/j.bbrep.2019.100724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 11/19/2019] [Accepted: 12/28/2019] [Indexed: 11/26/2022] Open
Abstract
An elevated prevalence of cryptococcal infection is a tendency in low-income countries and constitutes a global public health problem due to factors such as the limited efficacy of antifungal therapy and the AIDS/transplant immunocompromised patients. The fungus Cryptococcus neoformans, implicated in this burden, has had several genes validated as drug targets. Among them, the thioredoxin system is one of the major regulators of redox homeostasis and antioxidant defense acting on protein disulfide bonds. Thioredoxin 1 from C. neoformans (CnTrx1) was cloned and expressed in E. coli and the recombinant protein was purified and crystallized. Functional assay shows that CnTrx1 catalyzes the reduction of insulin disulfide bonds using dithiothreitol, while acting as a monomer in solution. The crystal structure of oxidized CnTrx1 at 1.80 Å resolution presents a dimer in the asymmetric unit with typical Trx-fold. Differences between the monomers in the asymmetric unit are found specially in the loop leading to the Cys-Gly-Pro-Cys active-site motif, being even larger when compared to those found between reduced and oxidized states of other thioredoxins. Although the thioredoxins have been isolated and characterized from many organisms, this new structural report provides important clues for understanding the binding and specificity of CnTrx1 to its targets.
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Affiliation(s)
- Claudia Patricia Bravo-Chaucanés
- Laboratório de Biofísica Molecular, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | | | | | - Maria Sueli Soares Felipe
- Universidade Católica de Brasília, Pós-Graduação em Ciências Genômicas e Biotecnologia, Brasília, DF, Brazil
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Redox Signaling from Mitochondria: Signal Propagation and Its Targets. Biomolecules 2020; 10:biom10010093. [PMID: 31935965 PMCID: PMC7023504 DOI: 10.3390/biom10010093] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 02/07/2023] Open
Abstract
Progress in mass spectroscopy of posttranslational oxidative modifications has enabled researchers to experimentally verify the concept of redox signaling. We focus here on redox signaling originating from mitochondria under physiological situations, discussing mechanisms of transient redox burst in mitochondria, as well as the possible ways to transfer such redox signals to specific extramitochondrial targets. A role of peroxiredoxins is described which enables redox relay to other targets. Examples of mitochondrial redox signaling are discussed: initiation of hypoxia-inducible factor (HIF) responses; retrograde redox signaling to PGC1α during exercise in skeletal muscle; redox signaling in innate immune cells; redox stimulation of insulin secretion, and other physiological situations.
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Arato I, Grande G, Barrachina F, Bellucci C, Lilli C, Jodar M, Aglietti MC, Mancini F, Vincenzoni F, Pontecorvi A, Calafiore R, Oliva R, Luca G, Mancuso F, Milardi D. " In vitro" Effect of Different Follicle-Stimulating Hormone Preparations on Sertoli Cells: Toward a Personalized Treatment for Male Infertility. Front Endocrinol (Lausanne) 2020; 11:401. [PMID: 32625170 PMCID: PMC7314925 DOI: 10.3389/fendo.2020.00401] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/19/2020] [Indexed: 01/02/2023] Open
Abstract
Follicle-stimulating hormone (FSH), a major regulator of spermatogenesis, has a crucial function in the development and function of the testis and it is extensively given as a fertility treatment to stimulate spermatogenesis. We analyzed the effects of different FSH preparations (α-follitropin, β-follitropin, and urofollitropin) in combination with testosterone on porcine pre-pubertal Sertoli cells. To study the effect of the different FSH treatments in the Sertoli cell function we performed Real Time PCR analysis of AMH, inhibin B, and FSH-r, an ELISA assay for AMH and inhibin B, and a high-throughput comparative proteomic analysis. We verified that all three preparations induced a reduction of AMH in terms of mRNA and secreted proteins, and an increase of inhibin B in terms of mRNA in all the FSH formulations, while solely α-follitropin produced an increase of secreted inhibin B in the culture medium. Comparative proteomic analysis of the three FSH preparations identified 46 proteins, 11 up-regulated and 2 down-regulated. Surprisingly, the combination of testosterone with β-follitropin specifically induced an up-regulation of eight specific secreted proteins. Our study, showing that the three different FSH preparations induce different effects, could offer the opportunity to shed light inside new applications to a personalized reproductive medicine.
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Affiliation(s)
- Iva Arato
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Giuseppe Grande
- Research Unit on Human Reproduction, International Scientific Institute Paul VI, Rome, Italy
- Division of Endocrinology, Fondazione Policlinico Universitario “Agostino Gemelli”, Rome, Italy
| | - Ferran Barrachina
- Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Catia Bellucci
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Cinzia Lilli
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Meritxell Jodar
- Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain
| | | | - Francesca Mancini
- Research Unit on Human Reproduction, International Scientific Institute Paul VI, Rome, Italy
| | - Federica Vincenzoni
- Biochemistry and Clinical Biochemistry Institute, School of Medicine, Catholic University of Rome, Rome, Italy
- Department of Laboratory Diagnostic and Infectious Diseases, Fondazione Policlinico “A. Gemelli” IRCCS, Rome, Italy
| | - Alfredo Pontecorvi
- Research Unit on Human Reproduction, International Scientific Institute Paul VI, Rome, Italy
- Division of Endocrinology, Fondazione Policlinico Universitario “Agostino Gemelli”, Rome, Italy
| | - Riccardo Calafiore
- Department of Medicine, University of Perugia, Perugia, Italy
- Division of Medical Andrology and Endocrinology of Reproduction, University of Perugia and Saint Mary Hospital, Terni, Italy
| | - Rafael Oliva
- Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain
| | - Giovanni Luca
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
- Division of Medical Andrology and Endocrinology of Reproduction, University of Perugia and Saint Mary Hospital, Terni, Italy
- *Correspondence: Giovanni Luca
| | - Francesca Mancuso
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Domenico Milardi
- Research Unit on Human Reproduction, International Scientific Institute Paul VI, Rome, Italy
- Division of Endocrinology, Fondazione Policlinico Universitario “Agostino Gemelli”, Rome, Italy
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Rhee SG. A catalytic career: Studies spanning glutamine synthetase, phospholipase C, peroxiredoxin, and the intracellular messenger role of hydrogen peroxide. J Biol Chem 2019; 294:5169-5180. [PMID: 30926755 DOI: 10.1074/jbc.x119.007975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
I learned biochemistry from P. Boon Chock and Earl Stadtman while working on the regulation of Escherichia coli glutamine synthetase as a postdoctoral fellow at the National Institutes of Health. After becoming a tenured scientist at the same institute, my group discovered, purified, and cloned the first three prototypical members of the phospholipase C family and uncovered the mechanisms by which various cell-surface receptors activate these enzymes to generate diacylglycerol and inositol 1,4,5-trisphosphate. We also discovered the family of peroxiredoxin (Prx) enzymes that catalyze the reduction of H2O2, and we established that mammalian cells express six Prx isoforms that not only protect against oxidative damage but also mediate cell signaling by modulating intracellular H2O2 levels. To validate the signaling role of H2O2, we showed that epidermal growth factor induces a transient increase in intracellular H2O2 levels, and the essential cysteine residue of protein-tyrosine phosphatases is a target for specific and reversible oxidation by the H2O2 produced in such cells. These observations led to a new paradigm in receptor signaling, in which protein tyrosine phosphorylation is achieved not via activation of receptor tyrosine kinases alone but also through concurrent inhibition of protein-tyrosine phosphatases by H2O2 Our studies revealed that Prx isozymes are extensively regulated via phosphorylation as well as by hyperoxidation of the active-site cysteine to cysteine sulfinic acid, with the reverse reaction being catalyzed by sulfiredoxin. This reversible hyperoxidation of Prx was further shown to constitute a universal marker for circadian rhythms in all domains of life.
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Affiliation(s)
- Sue Goo Rhee
- From the Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 120-752, Korea and the Biochemistry and Biophysics Center, NHLBI, National Institutes of Health, Bethesda, Maryland 20892
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Wang Z, Sun R, Wang G, Chen Z, Li Y, Zhao Y, Liu D, Zhao H, Zhang F, Yao J, Tian X. SIRT3-mediated deacetylation of PRDX3 alleviates mitochondrial oxidative damage and apoptosis induced by intestinal ischemia/reperfusion injury. Redox Biol 2019; 28:101343. [PMID: 31655428 PMCID: PMC6820261 DOI: 10.1016/j.redox.2019.101343] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 10/06/2019] [Accepted: 10/11/2019] [Indexed: 12/11/2022] Open
Abstract
Background Hydrogen peroxide (H2O2)-induced mitochondrial oxidative damage is critical to intestinal ischemia/reperfusion (I/R) injury, and PRDX3 is an efficient H2O2 scavenger that protects cells from mitochondrial oxidative damage and apoptosis. However, the function of PRDX3 in intestinal I/R injury is unclear. The aim of this study was to investigate the precise mechanism underlying the involvement of PRDX3 in intestinal I/R injury. Methods An intestinal I/R model was established in mice with superior mesenteric artery occlusion, and Caco-2 cells were subjected to hypoxia/reoxygenation (H/R) for the in vivo simulation of I/R. Results PRDX3 expression was decreased during intestinal I/R injury, and PRDX3 overexpression significantly attenuated H/R-induced mitochondrial oxidative damage and apoptosis in Caco-2 cells. The level of acetylated PRDX3 was clearly increased both in vivo and in vitro. The inhibition of SIRTs by nicotinamide (NAM) increased the level of acetylated PRDX3 and impaired the antioxidative activity of PRDX3. Furthermore, NAM did not increase the acetylation of PRDX3 in sirtuin-3 (SIRT3)-knockdown Caco-2 cells. Importantly, PRDX3 acetylation was increased in mice lacking SIRT3, and this effect was accompanied by serious mitochondrial oxidative damage, apoptosis and remote organ damage after intestinal I/R injury. We screened potential sites of PRDX3 acetylation in the previously reported acetylproteome through immunoprecipitation (IP) experiments and found that SIRT3 deacetylates K253 on PRDX3 in Caco-2 cells. Furthermore, PRDX3 with the lysine residue K253 mutated to arginine (K253R) increased its dimerization in Caco-2 cells after subjected to 12 h hypoxia and followed 4 h reoxygenation. Caco-2 cells transfected with the K253R plasmid exhibited notably less mitochondrial damage and apoptosis, and transfection of the K253Q plasmid abolished the protective effect of PRDX3 overexpression. Analysis of ischemic intestines from clinical patients further verified the correlation between SIRT3 and PRDX3. Conclusions PRDX3 is a key protective factor for intestinal I/R injury, and SIRT3-mediated PRDX3 deacetylation can alleviate intestinal I/R-induced mitochondrial oxidative damage and apoptosis.
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Affiliation(s)
- Zhanyu Wang
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Ruimin Sun
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, China
| | - Guangzhi Wang
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Zhao Chen
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Yang Li
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Yan Zhao
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, China
| | - Deshun Liu
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Huanyu Zhao
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, China
| | - Feng Zhang
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, China.
| | - Xiaofeng Tian
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
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56
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The effect of short-term methionine restriction on glutathione synthetic capacity and antioxidant responses at the whole tissue and mitochondrial level in the rat liver. Exp Gerontol 2019; 127:110712. [PMID: 31472257 DOI: 10.1016/j.exger.2019.110712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/19/2019] [Accepted: 08/26/2019] [Indexed: 12/13/2022]
Abstract
Dietary methionine restriction (MR) where methionine is the sole source of sulfur amino acid increases lifespan in diverse species. Methionine restricted rodents experience a decrease in glutathione (GSH), a major antioxidant, in several tissues, which is paradoxical to longevity interventions because tissues with low GSH might experience more oxidative damage. Liver plays a key role in GSH synthesis and here we examined how MR influences GSH metabolism in the liver. We also hypothesised that low GSH might be subsidized by compensatory pathway(s) in the liver. To investigate GSH synthesis and antioxidant responses, Fischer-344 rats were given either a MR diet or a control diet for 8 weeks. Based on γ-glutamylcysteine synthetase activity, GSH synthetic capacity did not respond to low dietary methionine availability. Tissue level protein and lipid oxidation markers do not support elevated oxidative damage, despite low GSH availability. Whole tissue and mitochondrial level responses to MR differed. Specifically, the activity of glutathione reductase and thioredoxin reductase increase in whole liver tissue which might offset the effects of declined GSH availability whereas mitochondrial GSH levels were unperturbed by MR. Moreover, enhanced proton leak in liver mitochondria by MR (4 week) presumably diminishes ROS production. Taken together, we suggest that the effect of low GSH in liver tissue is subsidized, at least in part, by increased antioxidant activity and possibly by enhanced mitochondrial proton leak.
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57
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Johnson LA, Hug LA. Distribution of reactive oxygen species defense mechanisms across domain bacteria. Free Radic Biol Med 2019; 140:93-102. [PMID: 30930298 DOI: 10.1016/j.freeradbiomed.2019.03.032] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 03/06/2019] [Accepted: 03/26/2019] [Indexed: 11/25/2022]
Abstract
Bacteria are the most diverse and numerous organisms on the planet, inhabiting environments from the deep subsurface to particles in clouds. Across this range of conditions, bacteria have evolved a diverse suite of enzymes to mitigate cellular damage from reactive oxygen species (ROS). Here, we review the diversity and distribution of ROS enzymatic defense mechanisms across the domain Bacteria, using both peer-reviewed literature and publicly available genome databases. We describe the specific strategies used by well-characterized organisms in order to highlight differences in oxidative stress responses between aerobic, facultatively anaerobic, and anaerobic lifestyles. We present evidence from genome minimization experiments to suggest that ROS defenses are obligately required for life. This review clarifies the variability in ROS defenses across Bacteria, including the novel diversity found in currently uncharacterized Candidate Phyla.
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Affiliation(s)
- Lisa A Johnson
- Department of Biology, University of Waterloo, Waterloo, Canada
| | - Laura A Hug
- Department of Biology, University of Waterloo, Waterloo, Canada.
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58
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Ganeshpurkar A, Swetha R, Kumar D, Gangaram GP, Singh R, Gutti G, Jana S, Kumar D, Kumar A, Singh SK. Protein-Protein Interactions and Aggregation Inhibitors in Alzheimer's Disease. Curr Top Med Chem 2019; 19:501-533. [PMID: 30836921 DOI: 10.2174/1568026619666190304153353] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/31/2018] [Accepted: 11/20/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Alzheimer's Disease (AD), a multifaceted disorder, involves complex pathophysiology and plethora of protein-protein interactions. Thus such interactions can be exploited to develop anti-AD drugs. OBJECTIVE The interaction of dynamin-related protein 1, cellular prion protein, phosphoprotein phosphatase 2A and Mint 2 with amyloid β, etc., studied recently, may have critical role in progression of the disease. Our objective has been to review such studies and their implications in design and development of drugs against the Alzheimer's disease. METHODS Such studies have been reviewed and critically assessed. RESULTS Review has led to show how such studies are useful to develop anti-AD drugs. CONCLUSION There are several PPIs which are current topics of research including Drp1, Aβ interactions with various targets including PrPC, Fyn kinase, NMDAR and mGluR5 and interaction of Mint2 with PDZ domain, etc., and thus have potential role in neurodegeneration and AD. Finally, the multi-targeted approach in AD may be fruitful and opens a new vista for identification and targeting of PPIs in various cellular pathways to find a cure for the disease.
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Affiliation(s)
- Ankit Ganeshpurkar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Rayala Swetha
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Devendra Kumar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Gore P Gangaram
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ravi Singh
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Gopichand Gutti
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Srabanti Jana
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Dileep Kumar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ashok Kumar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Sushil K Singh
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
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Martins AD, Agarwal A, Baskaran S, Pushparaj PN, Ahmad G, Panner Selvam MK. Alterations of Spermatozoa Proteomic Profile in Men with Hodgkin's Disease Prior to Cancer Therapy. World J Mens Health 2019; 38:521-534. [PMID: 31385466 PMCID: PMC7502316 DOI: 10.5534/wjmh.190012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/01/2019] [Accepted: 05/13/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose Hodgkin's disease (HD) is a type of cancer affecting men in the reproductive age with potential consequences on their fertility status. This study aims to analyze sperm parameters, alterations in proteomic profiles and validate selected protein biomarkers of spermatozoa in men with HD undergoing sperm banking before cancer therapy. Materials and Methods Semen analysis was carried out in healthy fertile donors (control, n=42), and patients diagnosed with HD (patients, n=38) before cancer therapy. We compared proteomic profiles of spermatozoa from donors (n=3) and patients (n=3) using LTQ-Orbitrap Elite hybrid MS system. Results A total of 1,169 proteins were identified by global proteomic in both groups. The ingenuity pathway analysis revealed that differentially expressed proteins involved in capacitation, acrosome reaction, binding of sperm to the zona pellucida, sperm motility, regulation of sperm DNA damage, and apoptosis were significantly downregulated in HD patients. Validation of proteins implicated in sperm fertility potential by Western Blot demonstrated that peroxiredoxin 2 (PRDX 2) was underexpressed (p=0.015), and transferrin (p=0.045) and SERPIN A5 (p=0.010) protein levels were overexpressed in spermatozoa of men with HD. Conclusions Findings of this study indicates that the key proteins involved in sperm fertility potential are significantly altered in men with HD, which provides substantial explanation for the observed low sperm quality in HD subjects prior to cancer therapy. Furthermore, our results suggest PRDX 2, transferrin and SERPIN A5 as possible candidate proteins for assessing sperm quality in HD patients prior to cancer therapy.
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Affiliation(s)
- Ana D Martins
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Microscopy, Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar and Unit for Multidisciplinary Research in Biomedicine, University of Porto, Porto, Portugal
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Peter Natesan Pushparaj
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Gulfam Ahmad
- Discipline of Pathology, School of Medical Sciences, Sydney University, Sydney, Australia
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Phosphoproteins Involved in the Inhibition of Apoptosis and in Cell Survival in the Leiomyoma. J Clin Med 2019; 8:jcm8050691. [PMID: 31100862 PMCID: PMC6572112 DOI: 10.3390/jcm8050691] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/01/2019] [Accepted: 05/13/2019] [Indexed: 12/24/2022] Open
Abstract
Uterine leiomyomas are benign smooth muscle cell tumors originating from the myometrium. In this study we focus on leiomyoma and normal myometrium phosphoproteome, to identify differentially phosphorylated proteins involved in tumorigenic signaling pathways, and in anti-apoptotic processes and cell survival. We obtained paired tissue samples of seven leiomyomas and adjacent myometria and analyzed the phosphoproteome by two-dimensional gel electrophoresis (2-DE) combined with immobilized metal affinity chromatography (IMAC) and Pro-Q Diamond phosphoprotein gel stain. We used mass spectrometry for protein identification and Western blotting for 2-DE data validation. Quantities of 33 proteins enriched by the IMAC approach were significantly different in the leiomyoma if compared to the myometrium. Bioinformatic analysis revealed ten tumorigenic signaling pathways and four phosphoproteins involved in both the inhibition of apoptosis and cell survival. Our study highlights the involvement of the phosphoproteome in leiomyoma growth. Further studies are needed to understand the role of phosphorylation in leiomyoma. Our data shed light on mechanisms that still need to be ascertained, but could open the path to a new class of drugs that not only can block the growth, but could also lead to a significant reduction in tumor size.
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Karunakaran U, Elumalai S, Moon JS, Won KC. CD36 dependent redoxosomes promotes ceramide-mediated pancreatic β-cell failure via p66Shc activation. Free Radic Biol Med 2019; 134:505-515. [PMID: 30735834 DOI: 10.1016/j.freeradbiomed.2019.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 12/14/2022]
Abstract
Altered metabolism is implicated in the pathogenesis of beta-cell failure in type 2 diabetes (T2D). Plasma and tissue levels of ceramide species play positive roles in inflammatory and oxidative stress responses in T2D. However, oxidative targets and mechanisms underlying ceramide signaling are unclear. We investigated the role of CD36-dependent redoxosome (redox-active endosome), a membrane-based signaling agent, in ceramide-induced beta-cell dysfunction and failure. Exposure of beta cells to C2-ceramide (N-acetyl-sphingosine) induced a CD36-dependent non-receptor tyrosine kinase Src-mediated redoxosome (Vav2-Rac1-NOX) formation. Activated Rac1-GTP-NADPH oxidase complex induced c-Jun-N-terminal kinase (JNK) activation and nuclear factor (NF)-kB transcription, which was associated with thioredoxin-interacting protein (TXNIP) upregulation and thioredoxin activity suppression. Upregulated JNK expression induced p66Shc serine36 phosphorylation and peroxiredoxin-3 hyperoxidation, causing beta-cell apoptosis via mitochondrial dysfunction. CD36 inhibition by sulfo-N-succinimidyl oleate (SSO) or CD36 siRNA blocked C2-ceramide-induced redoxosome activation, thereby decreasing JNK-dependent p66Shc serine36 phosphorylation. CD36 inhibition downregulated TXNIP expression and promoted thioredoxin activity via enhanced thioredoxin reductase activity, which prevented peroxiredoxin-3 oxidation. CD36 inhibition potentiated glucose-stimulated insulin secretion and prevented beta-cell apoptosis. Our results reveal a new role of CD36 during early molecular events that lead to Src-mediated redoxosome activation, which contributes to ceramide-induced pancreatic beta-cell dysfunction and failure.
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Affiliation(s)
- Udayakumar Karunakaran
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Suma Elumalai
- Institute of Medical Science, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Jun Sung Moon
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Kyu Chang Won
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea; Institute of Medical Science, Yeungnam University College of Medicine, Daegu, Republic of Korea.
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Signals Getting Crossed in the Entanglement of Redox and Phosphorylation Pathways: Phosphorylation of Peroxiredoxin Proteins Sparks Cell Signaling. Antioxidants (Basel) 2019; 8:antiox8020029. [PMID: 30678096 PMCID: PMC6406269 DOI: 10.3390/antiox8020029] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 12/13/2022] Open
Abstract
Reactive oxygen and nitrogen species have cell signaling properties and are involved in a multitude of processes beyond redox homeostasis. The peroxiredoxin (Prdx) proteins are highly sensitive intracellular peroxidases that can coordinate cell signaling via direct reactive species scavenging or by acting as a redox sensor that enables control of binding partner activity. Oxidation of the peroxidatic cysteine residue of Prdx proteins are the classical post-translational modification that has been recognized to modulate downstream signaling cascades, but increasing evidence supports that dynamic changes to phosphorylation of Prdx proteins is also an important determinant in redox signaling. Phosphorylation of Prdx proteins affects three-dimensional structure and function to coordinate cell proliferation, wound healing, cell fate and lipid signaling. The advent of large proteomic datasets has shown that there are many opportunities to understand further how phosphorylation of Prdx proteins fit into intracellular signaling cascades in normal or malignant cells and that more research is necessary. This review summarizes the Prdx family of proteins and details how post-translational modification by kinases and phosphatases controls intracellular signaling.
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Lin Y, Wang J, Zheng W, Luo Q, Wu K, Du J, Zhao Y, Wang F. Organometallic ruthenium anticancer complexes inhibit human peroxiredoxin I activity by binding to and inducing oxidation of its catalytic cysteine residue. Metallomics 2019; 11:546-555. [DOI: 10.1039/c8mt00352a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Ruthenium arene anticancer complexes bind to human peroxiredoxin I, leading to oxidation of thiolate and failure of forming a disulfide bond.
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Affiliation(s)
- Yu Lin
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
| | - Jie Wang
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
| | - Wei Zheng
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
| | - Qun Luo
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
| | - Kui Wu
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
| | - Jun Du
- College of Chemistry and Materials Science
- Key Laboratory of Functional Molecular Solids
- the Ministry of Education
- Anhui Laboratory of Molecular-Based Materials
- Anhui Normal University
| | - Yao Zhao
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
| | - Fuyi Wang
- Beijing National Laboratory for Molecular Sciences
- National Centre for Mass Spectrometry in Beijing
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
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Niu L, Liu A, Xu W, Yang L, Zhu W, Gu Y. Downregulation of peroxiredoxin II suppresses the proliferation and metastasis of gastric cancer cells. Oncol Lett 2018; 16:4551-4560. [PMID: 30214590 PMCID: PMC6126214 DOI: 10.3892/ol.2018.9208] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 04/18/2018] [Indexed: 12/15/2022] Open
Abstract
Peroxiredoxin (Prx) II is an imperative member of the superfamily of peroxidases. It serves an essential role in scavenging organic hydroperoxide and H2O2. It is involved in the development of various malignant tumors. In order to investigate the significance of Prx II expressions level in gastric cancer (GC), downregulation of Prx II was performed to investigate its role in the proliferation and migration of gastric adenocarcinoma cells. In GC cells and 45 GC specimens, the mRNA and protein expression levels of Prx II were determined using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis, respectively. The Prx II expression profile in another 116 GC specimens was also detected with immunohistochemistry (IHC). The changes in the proliferation and migration of MKN45 and MGC-803 cells folllowing transfection with small interfering RNA (siRNA) were detected by cell counting kit (CCK)-8, western blot analysis, and Transwell migration and invasion assays. The results revealed that the expression of Prx II in GC tissues and GC cells were significantly upregulated compared with the normal control. There was a significant association between the expression level of Prx II and various factors, including tumor size, histological differentiation, the depth of invasion, the stage of tumor-node-metastasis (TNM) and lymph node metastasis in GC (P<0.05). Survival in patients with higher Prx II expression was significantly decreased compared with those with lower Prx II expression (P<0.01). Prx II, depth of invasion, lymph node metastasis and distant metastasis were identified as independent prognosis factors of GC (P<0.05). Knockdown of Prx II significantly suppressed the proliferation and the migration of GC cells. These experiments revealed that Prx II promotes the development of GC, affecting the survival of patients with GC.
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Affiliation(s)
- Linjun Niu
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Ang Liu
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Wei Xu
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Liang Yang
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Wugang Zhu
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Yuming Gu
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
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Nanoparticles in Medicine: A Focus on Vascular Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6231482. [PMID: 30356429 PMCID: PMC6178176 DOI: 10.1155/2018/6231482] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/26/2018] [Accepted: 08/19/2018] [Indexed: 01/16/2023]
Abstract
Nanotechnology has had a significant impact on medicine in recent years, its application being referred to as nanomedicine. Nanoparticles have certain properties with biomedical applications; however, in some situations, they have demonstrated cell toxicity, which has caused concern surrounding their clinical use. In this review, we focus on two aspects: first, we summarize the types of nanoparticles according to their chemical composition and the general characteristics of their use in medicine, and second, we review the applications of nanoparticles in vascular alteration, especially in endothelial dysfunction related to oxidative stress. This condition can lead to a reduction in nitric oxide (NO) bioavailability, consequently affecting vascular tone regulation and endothelial dysfunction, which is the first phase in the development of cardiovascular diseases. Therefore, nanoparticles with antioxidant properties may improve vascular dysfunction associated with hypertension, diabetes mellitus, or atherosclerosis.
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66
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Detienne G, De Haes W, Mergan L, Edwards SL, Temmerman L, Van Bael S. Beyond ROS clearance: Peroxiredoxins in stress signaling and aging. Ageing Res Rev 2018; 44:33-48. [PMID: 29580920 DOI: 10.1016/j.arr.2018.03.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 03/21/2018] [Indexed: 12/12/2022]
Abstract
Antioxidants were long predicted to have lifespan-promoting effects, but in general this prediction has not been well supported. While some antioxidants do seem to have a clear effect on longevity, this may not be primarily as a result of their role in the removal of reactive oxygen species, but rather mediated by other mechanisms such as the modulation of intracellular signaling. In this review we discuss peroxiredoxins, a class of proteinaceous antioxidants with redox signaling and chaperone functions, and their involvement in regulating longevity and stress resistance. Peroxiredoxins have a clear role in the regulation of lifespan and survival of many model organisms, including the mouse, Caenorhabditis elegans and Drosophila melanogaster. Recent research on peroxiredoxins - in these models and beyond - has revealed surprising new insights regarding the interplay between peroxiredoxins and longevity signaling, which will be discussed here in detail. As redox signaling is emerging as a potentially important player in the regulation of longevity and aging, increased knowledge of these fascinating antioxidants and their mode(s) of action is paramount.
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Affiliation(s)
- Giel Detienne
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
| | - Wouter De Haes
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
| | - Lucas Mergan
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
| | - Samantha L Edwards
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
| | - Liesbet Temmerman
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
| | - Sven Van Bael
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
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Fang Y, He J, Janssen HLA, Wu J, Dong L, Shen XZ. Peroxiredoxin 1, restraining cell migration and invasion, is involved in hepatocellular carcinoma recurrence. J Dig Dis 2018; 19:155-169. [PMID: 29377617 DOI: 10.1111/1751-2980.12580] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/15/2018] [Accepted: 01/23/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) is a high-burden disease. Peroxiredoxin 1 (PRDX1) is a member of the peroxiredoxin family of antioxidant enzymes. The aim of this study was to assess the value of PRDX1 for predicting HCC recurrence after curative resection and to explore the role of PRDX1 in HCC cell migration and invasion. METHODS Data of patients with HCC who had undergone complete resection between 2002 and 2006 were collected. Immunohistochemical detection of PRDX1 in HCC tissue and adjacent non-cancerous tissue was conducted. Kaplan-Meier survival estimate and log-rank test were used to assess the relationship between PRDX1 expression and prognostic significance. HCC cell migration and invasion together with the interaction between PRDX1 and ubiquitin C-terminal hydrolase 37 (UCH37) were studied in vitro. RESULTS PRDX1 was expressed at lower levels in HCC tissues than in adjacent non-cancerous tissues, and PRDX1 was found to be an independent risk factor for disease-free survival and overall survival. PRDX1 restrained cell migration and invasion in vitro. PRDX1 was found to interact with UCH37 to affect HCC cell migration and invasion. CONCLUSION PRDX1 restrains cell migration and invasion in HCC cell lines and that may be involved in a UCH37-relevant pathway, suggesting that PRDX1 may be a new marker for HCC recurrence after surgery.
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Affiliation(s)
- Ying Fang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Juan He
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Harry L A Janssen
- Francis Family Liver Clinic, University of Toronto & University Health Network, Toronto, Canada
| | - Jian Wu
- Key Laboratory of Medical Molecule Virology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ling Dong
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xi Zhong Shen
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Liver Diseases, Fudan University, Shanghai, China
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68
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Structural and biochemical analyses reveal ubiquitin C-terminal hydrolase-L1 as a specific client of the peroxiredoxin II chaperone. Arch Biochem Biophys 2018; 640:61-74. [PMID: 29339092 DOI: 10.1016/j.abb.2018.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/02/2018] [Accepted: 01/07/2018] [Indexed: 01/30/2023]
Abstract
Peroxiredoxins (Prxs) play dual roles as both thiol-peroxidases and molecular chaperones. Peroxidase activity enables various intracellular functions, however, the physiological roles of Prxs as chaperones are not well established. To study the chaperoning function of Prx, we previously sought to identify heat-induced Prx-binding proteins as the clients of a Prx chaperone. By using His-tagged Prx I as a bait, we separated ubiquitin C-terminal hydrolase-L1 (UCH-L1) as a heat-induced Prx I binding protein from rat brain crude extracts. Protein complex immunoprecipitation with HeLa cell lysates revealed that both Prx I and Prx II interact with UCH-L1. However, Prx II interacted considerably more favorably with UCH-L1 than Prx I. Prx II exhibited more effective molecular chaperone activity than Prx I when UCH-L1 was the client. Prx II interacted with UCH-L1 through its C-terminal region to protect UCH-L1 from thermal or oxidative inactivation. We found that chaperoning via interaction through C-terminal region (specific-client chaperoning) is more efficient than that involving oligomeric structural change (general-client chaperoning). Prx II binds either thermally or oxidatively unfolding early intermediates of specific clients and thereby shifted the equilibrium towards their native state. We conclude that this chaperoning mechanism provides a very effective and selective chaperoning activity.
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Heawchaiyaphum C, Pientong C, Phusingha P, Vatanasapt P, Promthet S, Daduang J, Teeramatwanich W, Kongyingyoes B, Chuerduangphui J, Ekalaksananan T. Peroxiredoxin-2 and zinc-alpha-2-glycoprotein as potentially combined novel salivary biomarkers for early detection of oral squamous cell carcinoma using proteomic approaches. J Proteomics 2017; 173:52-61. [PMID: 29199150 DOI: 10.1016/j.jprot.2017.11.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/20/2017] [Accepted: 11/27/2017] [Indexed: 01/07/2023]
Abstract
No effective screening method is available for oral squamous cell carcinoma (OSCC) that is recognized to influence by environmental factors as well as human papillomavirus (HPV) and Epstein-Barr virus (EBV). Therefore, we sought to identify salivary biomarkers for screening of OSCC with or without HPV and/or EBV infection. Saliva, lesion and oral exfoliated cells were collected from OSCC patients and cancer-free controls (CFCs) and grouped depending on their HPV- and EBV-infection status. Salivary protein was precipitated and subjected to 2-dimensional gel electrophoresis. Differential expression of proteins was identified by mass spectrometry and validated by Western blotting. Distinctive expression patterns of salivary proteins were detected in OSCC as compared with CFCs. Levels of peroxiredoxin-2 (PRDX-2) and zinc-alpha-2-glycoprotein (ZAG) were significantly up-regulated in OSCC cases (p<0.001) relative to CFCs. Similarly, these proteins were also up-regulated in lesion cells compared with oral exfoliated cells (p<0.001). However, the expression patterns of these proteins were not significantly influenced by patient histories (risk factors). In combination, these proteins yielded the highest discriminatory power (AUC=0.999), sensitivity (100%), and specificity (98.77%) in distinguishing the early stages of OSCC. The detection of PRDX-2 combining with ZAG protein could potentially be used as salivary biomarkers for early screening of OSCC. SIGNIFICANCE Our findings demonstrate a useful of combined detection of PRDX-2 and ZAG as a salivary biomarker for the early detection of OSCC.
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Affiliation(s)
- Chukkris Heawchaiyaphum
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.
| | - Pensiri Phusingha
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Patravoot Vatanasapt
- Department of Otorhinolaryngology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.
| | - Supannee Promthet
- Department of Epidemiology, Faculty of Public Health, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.
| | - Jureerut Daduang
- Department of Clinical Chemistry, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.
| | - Watchareporn Teeramatwanich
- Department of Otorhinolaryngology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Bunkerd Kongyingyoes
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
| | - Jureeporn Chuerduangphui
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.
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Han SJ, Zhang Y, Kim I, Chay KO, Yoon HJ, Jang DI, Yang SY, Park J, Woo HA, Park I, Lee SR. Redox regulation of the tumor suppressor PTEN by the thioredoxin system and cumene hydroperoxide. Free Radic Biol Med 2017; 112:277-286. [PMID: 28774816 DOI: 10.1016/j.freeradbiomed.2017.07.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/06/2017] [Accepted: 07/29/2017] [Indexed: 12/22/2022]
Abstract
Intracellular redox status influences the oxidation and enzyme activity of the tumor suppressor phosphatase and tensin homolog on chromosome 10 (PTEN). Cumene hydroperoxide (CuHP), an organic hydroperoxide, is a known tumor promoter. However, molecular targets and action mechanism of CuHP in tumor promotion have not been well characterized. In this study, we investigated the effect of CuHP on the redox state of PTEN in HeLa cells. In addition, the intracellular reducing system of oxidized PTEN was analyzed using a biochemical approach and the effect of CuHP on this reducing system was also analyzed. While PTEN oxidized by hydrogen peroxide is progressively converted to its reduced form, PTEN was irreversibly oxidized by exposure to CuHP in HeLa cells. A combination of protein fractionation and mass analysis showed that the reducing system of PTEN was comprised of NADPH, thioredoxin reductase (TrxR), and thioredoxin (Trx). Although CuHP-mediated PTEN oxidation was not reversible in cells, CuHP-oxidized PTEN was reactivated by the exogenous Trx system, indicating that the cellular Trx redox system for PTEN is inactivated by CuHP. We present evidence that PTEN oxidation and the concomitant inhibition of thioredoxin by CuHP results in irreversible oxidation of PTEN in HeLa cells. In addition, ablation of peroxiredoxin (Prdx) enhanced CuHP-induced PTEN oxidation in cells. These results provide a new line of evidence that PTEN might be a crucial determinant of cell fate in response to cellular oxidative stress induced by organic hydroperoxides.
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Affiliation(s)
- Seong-Jeong Han
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea; COTDE Inc., 19-3, Ugakgol-gil, Susin-myeon, Cheonan-si, Chungcheongnam-do 330-882, Republic of Korea
| | - Ying Zhang
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea
| | - Inyoung Kim
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea
| | - Kee-Oh Chay
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea
| | - Hyun Joong Yoon
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea
| | - Dong Il Jang
- COTDE Inc., 19-3, Ugakgol-gil, Susin-myeon, Cheonan-si, Chungcheongnam-do 330-882, Republic of Korea
| | - Sung Yeul Yang
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea
| | - Jiyoung Park
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Hyun Ae Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Iha Park
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea.
| | - Seung-Rock Lee
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Republic of Korea.
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Connor DE, Chaitanya GV, Chittiboina P, McCarthy P, Scott LK, Schrott L, Minagar A, Nanda A, Alexander JS. Variations in the cerebrospinal fluid proteome following traumatic brain injury and subarachnoid hemorrhage. PATHOPHYSIOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY FOR PATHOPHYSIOLOGY 2017; 24:169-183. [PMID: 28549769 PMCID: PMC7303909 DOI: 10.1016/j.pathophys.2017.04.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 04/06/2017] [Accepted: 04/28/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Proteomic analysis of cerebrospinal fluid (CSF) has shown great promise in identifying potential markers of injury in neurodegenerative diseases [1-13]. Here we compared CSF proteomes in healthy individuals, with patients diagnosed with traumatic brain injury (TBI) and subarachnoid hemorrhage (SAH) in order to characterize molecular biomarkers which might identify these different clinical states and describe different molecular mechanisms active in each disease state. METHODS Patients presenting to the Neurosurgery service at the Louisiana State University Hospital-Shreveport with an admitting diagnosis of TBI or SAH were prospectively enrolled. Patients undergoing CSF sampling for diagnostic procedures were also enrolled as controls. CSF aliquots were subjected to 2-dimensional gel electrophoresis (2D GE) and spot percentage densities analyzed. Increased or decreased spot expression (compared to controls) was defined in terms of in spot percentages, with spots showing consistent expression change across TBI or SAH specimens being followed up by Matrix-Assisted Laser Desorption/Ionization mass spectrometry (MALDI-MS). Polypeptide masses generated were matched to known standards using a search of the NCBI and/or GenPept databases for protein matches. Eight hundred fifteen separately identifiable polypeptide migration spots were identified on 2D GE gels. MALDI-MS successfully identified 13 of 22 selected 2D GE spots as recognizable polypeptides. RESULTS Statistically significant changes were noted in the expression of fibrinogen, carbonic anhydrase-I (CA-I), peroxiredoxin-2 (Prx-2), both α and β chains of hemoglobin, serotransferrin (Tf) and N-terminal haptoglobin (Hp) in TBI and SAH specimens, as compared to controls. The greatest mean fold change among all specimens was seen in CA-I and Hp at 30.7 and -25.7, respectively. TBI specimens trended toward greater mean increases in CA-I and Prx-2 and greater mean decreases in Hp and Tf. CONCLUSIONS Consistent CSF elevation of CA-I and Prx-2 with concurrent depletion of Hp and Tf may represent a useful combination of biomarkers for the prediction of severity and prognosis following brain injury.
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Affiliation(s)
- David E Connor
- Baptist Health Neurosurgery Arkansas, Little Rock, AR, United States.
| | - Ganta V Chaitanya
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA, United States.
| | - Prashant Chittiboina
- Surgical Neurology Branch, National Institute of Neurological Diseases and Stroke, Bethesda, MD, United States.
| | - Paul McCarthy
- Department of Medicine, Sect. of Nephrology, University of Maryland, Baltimore, MD, United States.
| | - L Keith Scott
- Department of Critical Care Medicine, Louisiana State University Health Sciences Center-Shreveport, LA, United States.
| | - Lisa Schrott
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, LA, United States.
| | - Alireza Minagar
- Department of Neurology, Louisiana State University Health Sciences Center-Shreveport, LA, United States.
| | - Anil Nanda
- Department of Neurosurgery, Louisiana State University Health Sciences Center-Shreveport, LA, United States.
| | - J Steven Alexander
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, LA, United States.
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72
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Travasso RDM, Sampaio Dos Aidos F, Bayani A, Abranches P, Salvador A. Localized redox relays as a privileged mode of cytoplasmic hydrogen peroxide signaling. Redox Biol 2017; 12:233-245. [PMID: 28279943 PMCID: PMC5339411 DOI: 10.1016/j.redox.2017.01.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/18/2016] [Accepted: 01/03/2017] [Indexed: 12/31/2022] Open
Abstract
Hydrogen peroxide (H2O2) is a key signaling agent. Its best characterized signaling actions in mammalian cells involve the early oxidation of thiols in cytoplasmic phosphatases, kinases and transcription factors. However, these redox targets are orders of magnitude less H2O2-reactive and abundant than cytoplasmic peroxiredoxins. How can they be oxidized in a signaling time frame? Here we investigate this question using computational reaction-diffusion models of H2O2 signaling. The results show that at H2O2 supply rates commensurate with mitogenic signaling a H2O2 concentration gradient with a length scale of a few tenths of μm is established. Even near the supply sites H2O2 concentrations are far too low to oxidize typical targets in an early mitogenic signaling time frame. Furthermore, any inhibition of the peroxiredoxin or increase in H2O2 supply able to drastically increase the local H2O2 concentration would collapse the concentration gradient and/or cause an extensive oxidation of the peroxiredoxins I and II, inconsistent with experimental observations. In turn, the local concentrations of peroxiredoxin sulfenate and disulfide forms exceed those of H2O2 by several orders of magnitude. Redox targets reacting with these forms at rate constants much lower than that for, say, thioredoxin could be oxidized within seconds. Moreover, the spatial distribution of the concentrations of these peroxiredoxin forms allows them to reach targets within 1 μm from the H2O2 sites while maintaining signaling localized. The recruitment of peroxiredoxins to specific sites such as caveolae can dramatically increase the local concentrations of the sulfenic and disulfide forms, thus further helping these species to outcompete H2O2 for the oxidation of redox targets. Altogether, these results suggest that H2O2 signaling is mediated by localized redox relays whereby peroxiredoxins are oxidized to sulfenate and disulfide forms at H2O2 supply sites and these forms in turn oxidize the redox targets near these sites.
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Affiliation(s)
- Rui D M Travasso
- Centro de Física da Universidade de Coimbra (CFisUC), Department of Physics, University of Coimbra, Coimbra, Portugal.
| | - Fernando Sampaio Dos Aidos
- Centro de Física da Universidade de Coimbra (CFisUC), Department of Physics, University of Coimbra, Coimbra, Portugal
| | - Anahita Bayani
- Department of Physics & Mathematics, School of Science & Technology, Nottingham Trent University, UK
| | - Pedro Abranches
- Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Armindo Salvador
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CQC, Department of Chemistry, University of Coimbra, Portugal.
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Wang X, Hu B, Wen C, Zhang M, Jian S, Yang G. Molecular cloning, expression and antioxidative activity of 2-cys-peroxiredoxin from freshwater mussel Cristaria plicata. FISH & SHELLFISH IMMUNOLOGY 2017; 66:254-263. [PMID: 28499967 DOI: 10.1016/j.fsi.2017.05.026] [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: 01/11/2017] [Revised: 03/25/2017] [Accepted: 05/08/2017] [Indexed: 06/07/2023]
Abstract
Peroxiredoxins (Prxs) play an important role against various oxidative stresses by catalyzing the reduction of hydrogen peroxide (H2O2) and organic hydroperoxides to less harmful form. A 2-cys peroxiredoxin, designated as CpPrx, was cloned from hemocytes of freshwater mussel Cristaria plicata. The full length cDNA of CpPrx is 1247 bp, which includes an open reading frame (ORF) of 591bp, encoding 196 amino acids. CpPrx possesses two conserved cysteine residues (Cys49, Cys170). The deduced amino acid sequence of CpPrx showed a high level (67-74%) of sequence similarity to 2-Cys Prxs from other species. The results of real-time quantitative PCR revealed that CpPrx mRNA was constitutively expressed in tissues, and the highest expression levels were in hepatopancreas and gills. After peptidoglycan (PGN) and Aeromonas hydrophila challenge, the expression levels of CpPrx mRNA were up-regulated in hemocytes and hepatopancreas. The cDNA of CpPrx was cloned into the plasmid pET-32, and the recombinant protein was expressed in Escherichia coli BL21(DE3). Comparison with DE3-pET-32 and DE3 strain, the cells of DE3-pET-32-CpPrx exhibited resistance to the concentration of 0.4, 0.8 and 1.2 mmoL/L H2O2 in vivo.
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Affiliation(s)
- Xiaobo Wang
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Baoqing Hu
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Chungen Wen
- School of Life Sciences, Nanchang University, Nanchang 330031, China.
| | - Ming Zhang
- College of Jiangxi Biotech Vocational, Nanchang 330200, China.
| | - Shaoqing Jian
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Gang Yang
- School of Life Sciences, Nanchang University, Nanchang 330031, China
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74
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Park SJ, Kim JH, Kim TS, Lee SR, Park JW, Lee S, Kim JM, Lee DS. Peroxiredoxin 2 regulates PGF2α-induced corpus luteum regression in mice by inhibiting ROS-dependent JNK activation. Free Radic Biol Med 2017; 108:44-55. [PMID: 28323129 DOI: 10.1016/j.freeradbiomed.2017.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 03/03/2017] [Accepted: 03/13/2017] [Indexed: 11/25/2022]
Abstract
Luteal regression is a natural and necessary event to regulate the reproductive process in all mammals. Prostaglandin F2α (PGF2α) is the main factor that causes functional and structural regression of the corpus luteum (CL). It is well known that PGF2α-mediated ROS generation is closely involved in luteal regression. Peroxiredoxin 2 (Prx2) as an antioxidant enzyme plays a protective role against oxidative stress-induced cell death. However, the effect of Prx2 on PGF2α-induced luteal regression has not been reported. Here, we investigated the role of Prx2 in functional and structural CL regression induced by PGF2α-mediated ROS using Prx2-deficient (-/-) mice. We found that PGF2α-induced ROS generation was significantly higher in Prx2-/- MEF cells compared with that in wild-type (WT) cells, which induced apoptosis by activating JNK-mediated apoptotic signaling pathway. Also, PGF2α treatment in the CL derived from Prx2-/- mice promoted the reduction of steroidogenic enzyme expression and the activation of JNK and caspase3. Compared to WT mice, serum progesterone levels and luteal expression of steroidogenic enzymes decreased more rapidly whereas JNK and caspase3 activations were significantly increased in Prx2-/- mice injected with PGF2α. However, the impaired steroidogenesis and PGF2α-induced JNK-dependent apoptosis were rescued by the addition of the antioxidant N-acetyl-L-cysteine (NAC). This is the first study to demonstrate that Prx2 deficiency ultimately accelerated the PGF2α-induced luteal regression through activation of the ROS-dependent JNK pathway. These findings suggest that Prx2 plays a crucial role in preventing accelerated luteal regression via inhibition of the ROS/JNK pathway.
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Affiliation(s)
- Sun-Ji Park
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; Renal Division, School of medicine, Washington University in St Louis, MO, USA
| | - Jung-Hak Kim
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Tae-Shin Kim
- Embryology Laboratory, Neway Fertility, 115 East 57th Street Suite 500, New York, NY 10022, USA
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungcheongbuk-do, Republic of Korea
| | - Jeen-Woo Park
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Seunghoon Lee
- Animal Biotechnology Division, National Institute of Animal Science, Jeollabuk-do, Republic of Korea
| | - Jin-Man Kim
- Cancer Research Institute and Department of Pathology, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea.
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75
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Interaction of tankyrase and peroxiredoxin II is indispensable for the survival of colorectal cancer cells. Nat Commun 2017; 8:40. [PMID: 28659575 PMCID: PMC5489516 DOI: 10.1038/s41467-017-00054-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 05/02/2017] [Indexed: 12/16/2022] Open
Abstract
Mammalian 2-Cys peroxiredoxin (Prx) enzymes are overexpressed in most cancer tissues, but their specific signaling role in cancer progression is poorly understood. Here we demonstrate that Prx type II (PrxII) plays a tumor-promoting role in colorectal cancer by interacting with a poly(ADP-ribose) polymerase (PARP) tankyrase. PrxII deletion in mice with inactivating mutation of adenomatous polyposis coli (APC) gene reduces intestinal adenomatous polyposis via Axin/β-catenin axis and thereby promotes survival. In human colorectal cancer cells with APC mutations, PrxII depletion consistently reduces the β-catenin levels and the expression of β-catenin target genes. Essentially, PrxII depletion hampers the PARP-dependent Axin1 degradation through tankyrase inactivation. Direct binding of PrxII to tankyrase ARC4/5 domains seems to be crucial for protecting tankyrase from oxidative inactivation. Furthermore, a chemical compound targeting PrxII inhibits the expansion of APC-mutant colorectal cancer cells in vitro and in vivo tumor xenografts. Collectively, this study reveals a redox mechanism for regulating tankyrase activity and implicates PrxII as a targetable antioxidant enzyme in APC-mutation-positive colorectal cancer. 2-Cys peroxiredoxin (Prx) enzymes are highly expressed in most cancers but how they promote cancer progression is unclear. Here the authors show that in colorectal cancers with APC mutation, PrxII binds to tankyrase and prevents its oxidative inactivation, thereby preventing Axin1-dependent degradation of ²b-catenin.
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76
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The Role of NOX4 and TRX2 in Angiogenesis and Their Potential Cross-Talk. Antioxidants (Basel) 2017; 6:antiox6020042. [PMID: 28594389 PMCID: PMC5488022 DOI: 10.3390/antiox6020042] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/31/2017] [Accepted: 06/02/2017] [Indexed: 12/18/2022] Open
Abstract
The nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (NOX) family is the major source of reactive oxygen species (ROS) in the vascular system. In this family, NOX4, a constitutive active form of NOXs, plays an important role in angiogenesis. Thioredoxin 2 (TRX2) is a key mitochondrial redox protein that maintains normal protein function and also provides electrons to peroxiredoxin 3 (PRX3) to scavenge H₂O₂ in mitochondria. Angiogenesis, a process of new blood vessel formation, is involved in a variety of physiological processes and pathological conditions. It seems to be paradoxical for ROS-producing NOX4 and ROS-scavenging TRX2 to have a similar role in promoting angiogenesis. In this review, we will focus on data supporting the role of NOX4 and TRX2 in angiogenesis and their cross-talks and discuss how ROS can positively or negatively regulate angiogenesis, depending on their species, levels and locations. NOX4 and TRX2-mediated ROS signaling could be promising targets for the treatment of angiogenesis-related diseases.
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77
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Carvalho LAC, Truzzi DR, Fallani TS, Alves SV, Toledo JC, Augusto O, Netto LES, Meotti FC. Urate hydroperoxide oxidizes human peroxiredoxin 1 and peroxiredoxin 2. J Biol Chem 2017; 292:8705-8715. [PMID: 28348082 DOI: 10.1074/jbc.m116.767657] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/27/2017] [Indexed: 12/24/2022] Open
Abstract
Urate hydroperoxide is a product of the oxidation of uric acid by inflammatory heme peroxidases. The formation of urate hydroperoxide might be a key event in vascular inflammation, where there is large amount of uric acid and inflammatory peroxidases. Urate hydroperoxide oxidizes glutathione and sulfur-containing amino acids and is expected to react fast toward reactive thiols from peroxiredoxins (Prxs). The kinetics for the oxidation of the cytosolic 2-Cys Prx1 and Prx2 revealed that urate hydroperoxide oxidizes these enzymes at rates comparable with hydrogen peroxide. The second-order rate constants of these reactions were 4.9 × 105 and 2.3 × 106 m-1 s-1 for Prx1 and Prx2, respectively. Kinetic and simulation data suggest that the oxidation of Prx2 by urate hydroperoxide occurs by a three-step mechanism, where the peroxide reversibly associates with the enzyme; then it oxidizes the peroxidatic cysteine, and finally, the rate-limiting disulfide bond is formed. Of relevance, the disulfide bond formation was much slower in Prx2 (k3 = 0.31 s-1) than Prx1 (k3 = 14.9 s-1). In addition, Prx2 was more sensitive than Prx1 to hyperoxidation caused by both urate hydroperoxide and hydrogen peroxide. Urate hydroperoxide oxidized Prx2 from intact erythrocytes to the same extent as hydrogen peroxide. Therefore, Prx1 and Prx2 are likely targets of urate hydroperoxide in cells. Oxidation of Prxs by urate hydroperoxide might affect cell function and be partially responsible for the pro-oxidant and pro-inflammatory effects of uric acid.
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Affiliation(s)
| | - Daniela R Truzzi
- From the Departamento de Bioquímica, Instituto de Química (IQUSP)
| | | | - Simone V Alves
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências (IB-USP), and
| | - José Carlos Toledo
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo-SP CEP 05508-000, Brazil
| | - Ohara Augusto
- From the Departamento de Bioquímica, Instituto de Química (IQUSP)
| | - Luís E S Netto
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências (IB-USP), and
| | - Flavia C Meotti
- From the Departamento de Bioquímica, Instituto de Química (IQUSP),
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78
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Ledgerwood EC, Marshall JW, Weijman JF. The role of peroxiredoxin 1 in redox sensing and transducing. Arch Biochem Biophys 2017; 617:60-67. [DOI: 10.1016/j.abb.2016.10.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 10/06/2016] [Accepted: 10/14/2016] [Indexed: 12/11/2022]
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79
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Adewoyin M, Ibrahim M, Roszaman R, Isa MLM, Alewi NAM, Rafa AAA, Anuar MNN. Male Infertility: The Effect of Natural Antioxidants and Phytocompounds on Seminal Oxidative Stress. Diseases 2017; 5:E9. [PMID: 28933362 PMCID: PMC5456340 DOI: 10.3390/diseases5010009] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/22/2017] [Indexed: 12/18/2022] Open
Abstract
Defective sperm function has been identified as the most common cause of infertility. The objective of this study was to review recent findings on the effects of various antioxidants on male fertility. High amounts of poly unsaturated fatty acid are found in the mammalian spermatozoa membranes, thereby making them susceptible to lipid peroxidation. Although, free radicals and reactive oxygen species (ROS) play major roles in reproduction, they are strongly associated with oxidative stress. Furthermore, factors such as obesity, inflammation, pollutants and cigarette smoking are negatively correlated with spermatogenesis. Endogenous antioxidants system exists to mediate these damages. In a normal physiological state, the seminal plasma contains antioxidant enzyme mechanism that is capable of quenching these ROS as well as protecting the spermatozoa against any likely damage. However, high level of ROS triggered by inflammatory cells and oxidation of fatty acid in obese subjects may down play antioxidant mechanism resulting in oxidative stress. Evaluation of such oxidative stress is the first step in the treatment of male infertility through administration of suitable antioxidant. Notably, antioxidant such as vitamin E and C, carotenoids and carnitine have been found beneficial in restoring a balance between ROS generation and scavenging activities. There are emerging evidences that herbal products can also boost male reproductive functions. Nonetheless, a good lifestyle, regular exercise, avoidance of stress and observing safety rules at work are habits that can reverse male infertility.
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Affiliation(s)
- Malik Adewoyin
- Department of Nutrition Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia.
| | - Muhammad Ibrahim
- Department of Nutrition Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia.
| | - Ramli Roszaman
- Department of Obstetrics and Gynaecology, Kulliyyah of Medicine, International Islamic University Malaysia, Bandar Indera Mahkota, Jalan, 25200 Kuantan, Pahang, Malaysia.
| | - Muhammad Lokman Md Isa
- Department of Basic Medical Sciences, Kulliyyah of Nursing, International Islamic University Malaysia, Jalan Hospital Campus, 25100 Kuantan, Pahang, Malaysia.
| | - Nur Aizura Mat Alewi
- Department of Nutrition Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia.
| | - Ainin Azwani Abdul Rafa
- Department of Nutrition Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia.
| | - Mohd Nur Nasyriq Anuar
- Department of Nutrition Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia.
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80
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Abdesselem M, Ramodiharilafy R, Devys L, Gacoin T, Alexandrou A, Bouzigues CI. Fast quantitative ROS detection based on dual-color single rare-earth nanoparticle imaging reveals signaling pathway kinetics in living cells. NANOSCALE 2017; 9:656-665. [PMID: 27942670 DOI: 10.1039/c6nr07413h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Reactive oxygen species (ROS), and notably hydrogen peroxide H2O2, are cellular second messengers that are known to control a variety of signaling processes. They can finely regulate the dynamics of signal transduction, cell response and ultimately tissue function. However, there are very few local, quantitative and time-resolved descriptions of their cellular organization at the scale of molecular reactions, due to the lack of efficient sensors. We thus developed a novel nanoprobe-based ROS detection system using the simultaneous imaging of single lanthanide nanoparticles (YAG:Ce and chemically reduced Gd0.6Eu0.4VO4). We reveal that both particle luminescence signals are controlled by their H2O2 local environment. By simultaneously tracking their luminescence, we devised a new approach providing a quantitative (0.5 μM accuracy in the 1-10 μM range) H2O2 measurement with a 500 ms time resolution, surpassing all existing methods by two orders of magnitude, and revealing previously inaccessible molecular events controlling ROS concentration. We used this nanoprobe in living cells to track fast signaling pathways, by measuring the dynamics of H2O2 intracellular concentrations, induced by endothelin-1 (ET-1) stimulation. We thus revealed the mechanisms controlling ROS production, notably the activity modulation of the ROS-producing enzyme NADPH oxidase by fast (<10 s) EGFR transactivation, and measured quantitatively their kinetic parameters through a minimal analytical model. Altogether, these results illustrate how lanthanide nanoparticle-based sensors are a powerful tool to dynamically probe molecular mechanisms shaping the oxidative cell response.
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Affiliation(s)
- M Abdesselem
- Laboratory for Optics and Biosciences, Ecole Polytechnique, INSERM U1182 - CNRS UMR7645. and Universite Paris-Saclay, 91120 Palaiseau, France.
| | - R Ramodiharilafy
- Laboratory for Optics and Biosciences, Ecole Polytechnique, INSERM U1182 - CNRS UMR7645. and Universite Paris-Saclay, 91120 Palaiseau, France.
| | - L Devys
- Laboratory of Condensed Matter Physics, Ecole Polytechnique, CNRS UMR7643 and Universite Paris-Saclay, 91120 Palaiseau, France
| | - T Gacoin
- Laboratory of Condensed Matter Physics, Ecole Polytechnique, CNRS UMR7643 and Universite Paris-Saclay, 91120 Palaiseau, France
| | - A Alexandrou
- Laboratory for Optics and Biosciences, Ecole Polytechnique, INSERM U1182 - CNRS UMR7645. and Universite Paris-Saclay, 91120 Palaiseau, France.
| | - C I Bouzigues
- Laboratory for Optics and Biosciences, Ecole Polytechnique, INSERM U1182 - CNRS UMR7645. and Universite Paris-Saclay, 91120 Palaiseau, France.
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81
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Ardanaz N, Pagano PJ. Hydrogen Peroxide as a Paracrine Vascular Mediator: Regulation and Signaling Leading to Dysfunction. Exp Biol Med (Maywood) 2016; 231:237-51. [PMID: 16514169 DOI: 10.1177/153537020623100302] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Numerous studies have demonstrated the ability of a variety of vascular cells, including endothelial cells, smooth muscle cells, and fibroblasts, to produce reactive oxygen species (ROS). Until recently, major emphasis was placed on the production of superoxide anion (O2–) in the vasculature as a result of its ability to directly attenuate the biological activity of endothelium-derived nitric oxide (NO). The short half-life and radius of diffusion of O2– drastically limit the role of this ROS as an important paracrine hormone in vascular biology. On the contrary, in recent years, the O2– metabolite hydrogen peroxide (H2O2) has increasingly been viewed as an important cellular signaling agent in its own right, capable of modulating both contractile and growth-promoting pathways with more far-reaching effects. In this review, we will assess the vascular production of H2O2, its regulation by endogenous scavenger systems, and its ability to activate a variety of vascular signaling pathways, thereby leading to vascular contraction and growth. This discussion will include the ability of H2O2 to (i) Initiate calcium flux as well as (ii) stimulate pathways leading to sensitization of contractile elements to calcium. The latter involves a variety of protein kinases that have also been strongly implicated in vascular hypertrophy. Previous Intensive study has emphasized the ability of NADPH oxidase-derived O2– and H2O2 to activate these pathways in cultured smooth muscle cells. However, growing evidence indicates a considerably more complex array of unique oxidase systems in the endothelium, media, and adventitia that appear to participate in these deleterious effects in a sequential and temporal manner. Taken together, these findings seem consistent with a paracrine effect of H2O2 across the vascular wall.
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Affiliation(s)
- Noelia Ardanaz
- Hypertension and Vascular Research Division, RM 7044, E&R Building, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI 48202-2689, USA
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82
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van Tilburg MF, Sousa SD, Ferreira de Melo RB, Moreno FB, Monteiro-Moreira AC, Moreira RA, de Alencar Moura A. Proteome of the rete testis fluid from tropically-adapted Morada Nova rams. Anim Reprod Sci 2016; 176:20-31. [PMID: 27908670 DOI: 10.1016/j.anireprosci.2016.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 11/06/2016] [Accepted: 11/17/2016] [Indexed: 01/25/2023]
Abstract
The rete testis has a close relationship with sperm development and may have other functions besides serving as an intercalated channel. The aim of this study was to identify and characterize the proteins of rete testis fluid (RTF) from tropically-adapted Morada Nova rams. Testicles obtained from six Morada Nova rams were dissected and the head of the epididymis was separated to access the efferent ducts. Rete testis fluid was obtained by gentle massage of the testis. The fluid was centrifuged to remove cell debris and sperm. RTF samples (containing 400μg protein) were separated by 2-D SDS-PAGE and gels, analyzed using PDQuest software (Bio Rad, USA). Proteins were identified using tandem mass spectrometry. Gene ontology and protein network were analyzed using the software tool for searching annotations of proteins (STRAP) and STRING database. Gels had, on average, 227±13.5 spots and 51% of the proteins were found above 40kDa, corresponding to 65% of the intensity of all spots detected. Based on gene ontology analysis, the most common biological processes associated with RTF proteins were regulation (24.3%) and cellular process (23.3%). Binding (27.3%) and catalytic activity (19.3%) corresponded to the most frequent molecular functions. Albumin, clusterin, serotransferrin, immunoglobulin gamma-1 chain and alpha-2-HS-glycoprotein were the most abundant proteins in the ram rete testis fluid. In conclusion, proteins identified in the ram rete testis fluid are linked to several physiological processes associated with sperm protection and spermatogenesis.
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Affiliation(s)
| | | | | | - Frederico B Moreno
- Department of Pharmacy, The University of Fortaleza, Fortaleza, Ceará, Brazil
| | | | - Renato A Moreira
- Department of Pharmacy, The University of Fortaleza, Fortaleza, Ceará, Brazil
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83
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Li L. The Relevance of Mammalian Peroxiredoxins to the Gametogenesis, Embryogenesis, and Pregnancy Outcomes. Reprod Sci 2016; 24:812-817. [PMID: 27624309 DOI: 10.1177/1933719116667217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Peroxiredoxin (PRX) defines a family that provides antioxidant defense in different cell types by removing reactive oxygen species (ROS) through conserved active cysteines, with the support of other types of antioxidants such as thioredoxin, glutaredoxin, and glutathione peroxidase. By regulation of intracellular ROS levels, the mammalian PRXs influence a variety of reproductive processes including gamete maturation, fertilization, and embryo development. Experimental mice lacking PRXs developed normally, but some showed accelerated decrease in fertility with aging, suggesting that deficiency of PRXs did not have lethal consequences for reproduction. The aim of this review is to summarize the role of mammalian PRXs in the reproductive performance.
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Affiliation(s)
- Lianqin Li
- 1 Department of Reproductive Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
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84
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Sapcariu SC, Kanashova T, Dilger M, Diabaté S, Oeder S, Passig J, Radischat C, Buters J, Sippula O, Streibel T, Paur HR, Schlager C, Mülhopt S, Stengel B, Rabe R, Harndorf H, Krebs T, Karg E, Gröger T, Weiss C, Dittmar G, Hiller K, Zimmermann R. Metabolic Profiling as Well as Stable Isotope Assisted Metabolic and Proteomic Analysis of RAW 264.7 Macrophages Exposed to Ship Engine Aerosol Emissions: Different Effects of Heavy Fuel Oil and Refined Diesel Fuel. PLoS One 2016; 11:e0157964. [PMID: 27348622 PMCID: PMC4922672 DOI: 10.1371/journal.pone.0157964] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 06/08/2016] [Indexed: 11/18/2022] Open
Abstract
Exposure to air pollution resulting from fossil fuel combustion has been linked to multiple short-term and long term health effects. In a previous study, exposure of lung epithelial cells to engine exhaust from heavy fuel oil (HFO) and diesel fuel (DF), two of the main fuels used in marine engines, led to an increased regulation of several pathways associated with adverse cellular effects, including pro-inflammatory pathways. In addition, DF exhaust exposure was shown to have a wider response on multiple cellular regulatory levels compared to HFO emissions, suggesting a potentially higher toxicity of DF emissions over HFO. In order to further understand these effects, as well as to validate these findings in another cell line, we investigated macrophages under the same conditions as a more inflammation-relevant model. An air-liquid interface aerosol exposure system was used to provide a more biologically relevant exposure system compared to submerged experiments, with cells exposed to either the complete aerosol (particle and gas phase), or the gas phase only (with particles filtered out). Data from cytotoxicity assays were integrated with metabolomics and proteomics analyses, including stable isotope-assisted metabolomics, in order to uncover pathways affected by combustion aerosol exposure in macrophages. Through this approach, we determined differing phenotypic effects associated with the different components of aerosol. The particle phase of diluted combustion aerosols was found to induce increased cell death in macrophages, while the gas phase was found more to affect the metabolic profile. In particular, a higher cytotoxicity of DF aerosol emission was observed in relation to the HFO aerosol. Furthermore, macrophage exposure to the gas phase of HFO leads to an induction of a pro-inflammatory metabolic and proteomic phenotype. These results validate the effects found in lung epithelial cells, confirming the role of inflammation and cellular stress in the response to combustion aerosols.
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Affiliation(s)
- Sean C. Sapcariu
- Luxembourg Centre for Systems Biomedicine 6, avenue du Swing, L-4362 Esch-sur-Alzette, Luxembourg
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
- * E-mail: (SCS); (RZ)
| | - Tamara Kanashova
- Mass Spectrometry Core Unit, Max Delbrück Center for Molecular Medicine Berlin-Buch, Berlin, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Marco Dilger
- Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- Institute for Technical Chemistry (ITC), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Silvia Diabaté
- Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Sebastian Oeder
- Center of Allergy and Environment (ZAUM), Helmholtz Zentrum München and Technische Universität München, Munich, Germany
- CK-CARE, Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
- German Center for Lung Research (DZL), Munich, Germany
| | - Johannes Passig
- Joint Mass Spectrometry Centre, Division of Analytical and Technical Chemistry, Institute of Chemistry, University Rostock, Rostock, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Christian Radischat
- Joint Mass Spectrometry Centre, Division of Analytical and Technical Chemistry, Institute of Chemistry, University Rostock, Rostock, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Jeroen Buters
- Center of Allergy and Environment (ZAUM), Helmholtz Zentrum München and Technische Universität München, Munich, Germany
- CK-CARE, Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
- German Center for Lung Research (DZL), Munich, Germany
| | - Olli Sippula
- University of Eastern Finland, Department of Environmental Science, P.O. Box 1627, FI-70211 Kuopio, Finland
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Thorsten Streibel
- Joint Mass Spectrometry Centre, Division of Analytical and Technical Chemistry, Institute of Chemistry, University Rostock, Rostock, Germany
- Joint Mass Spectrometry Centre, CMA – Comprehensive Molecular Analytics, Helmholtz Zentrum München, Neuherberg, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Hanns-Rudolf Paur
- Institute for Technical Chemistry (ITC), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Christoph Schlager
- Institute for Technical Chemistry (ITC), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Sonja Mülhopt
- Institute for Technical Chemistry (ITC), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Benjamin Stengel
- Chair of Piston Machines and Internal Combustion Engines, University Rostock, Rostock, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Rom Rabe
- Chair of Piston Machines and Internal Combustion Engines, University Rostock, Rostock, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Horst Harndorf
- Chair of Piston Machines and Internal Combustion Engines, University Rostock, Rostock, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Tobias Krebs
- Vitrocell GmbH, Tübingen, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Erwin Karg
- Joint Mass Spectrometry Centre, CMA – Comprehensive Molecular Analytics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Thomas Gröger
- Joint Mass Spectrometry Centre, CMA – Comprehensive Molecular Analytics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Carsten Weiss
- Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology, Campus North, Karlsruhe, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Gunnar Dittmar
- Mass Spectrometry Core Unit, Max Delbrück Center for Molecular Medicine Berlin-Buch, Berlin, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Karsten Hiller
- Luxembourg Centre for Systems Biomedicine 6, avenue du Swing, L-4362 Esch-sur-Alzette, Luxembourg
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
| | - Ralf Zimmermann
- Joint Mass Spectrometry Centre, Division of Analytical and Technical Chemistry, Institute of Chemistry, University Rostock, Rostock, Germany
- Joint Mass Spectrometry Centre, CMA – Comprehensive Molecular Analytics, Helmholtz Zentrum München, Neuherberg, Germany
- HICE – Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health – Aerosols and Health, Neuherberg, Rostock, Munich, Karlsruhe, Berlin, Waldkirch, Germany; Kuopio, Finland; Cardiff, United Kingdom; Esch-Belval, Luxembourg
- * E-mail: (SCS); (RZ)
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85
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Immenschuh S, Baumgart-Vogt E, Tan M, Iwahara SI, Ramadori G, Fahimi HD. Differential Cellular and Subcellular Localization of Heme-Binding Protein 23/Peroxiredoxin I and Heme Oxygenase-1 in Rat Liver. J Histochem Cytochem 2016; 51:1621-31. [PMID: 14623930 DOI: 10.1177/002215540305101206] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Heme-binding protein 23 (HBP23), also termed peroxiredoxin (Prx) I, and heme oxygenase-1 (HO-1) are distinct antioxidant stress proteins that are co-ordinately induced by oxidative stress. HBP23/Prx I has thioredoxin-dependent peroxidase activity with high binding affinity for the pro-oxidant heme, while HO-1 is the inducible isoform of the rate-limiting enzyme of heme degradation. We investigated the cellular and subcellular localization of both proteins in rat liver. Whereas by immunohistochemistry (IHC) a uniformly high level of HBP23/Prx I expression was observed in liver parenchymal and different sinusoidal cells, HO-1 expression was restricted to Kupffer cells. By immunoelectron microscopy using the protein A-gold technique, HBP23/Prx I immunoreactivity was detected in cytoplasm, nuclear matrix, mitochondria, and peroxisomes of parenchymal and non-parenchymal liver cell populations. In contrast, the secretory pathway, i.e., the endoplasmic reticulum and Golgi complex, was free of label. As determined by immunocytochemical (ICC) studies in liver cell cultures and by Western and Northern blotting analysis, HBP23/Prx I was highly expressed in cultures of isolated hepatocytes and Kupffer cells. In contrast, HO-1 was constitutively expressed only in Kupffer cell cultures but was also inducible in hepatocytes. These data suggest that HBP23/Prx I and HO-1 may have complementary antioxidant functions in different cell populations in rat liver.
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Affiliation(s)
- Stephan Immenschuh
- Institute of Clinical Chemistry and Pathobiochemistry, University of Giessen, Giessen, Germany.
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86
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Liu JY, Zhang NZ, Li WH, Li L, Yan HB, Qu ZG, Li TT, Cui JM, Yang Y, Jia WZ, Fu BQ. Proteomic analysis of differentially expressed proteins in the three developmental stages of Trichinella spiralis. Vet Parasitol 2016; 231:32-38. [PMID: 27357750 DOI: 10.1016/j.vetpar.2016.06.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 06/13/2016] [Accepted: 06/15/2016] [Indexed: 12/31/2022]
Abstract
Trichinella spiralis, an intracellular parasitic nematode, can cause severe foodborne zoonosis, trichinellosis. The life cycle of T. spiralis consists of adult (Ad), muscle larvae (ML) and newborn larvae (NBL). The protein profiles in different developmental stages of the parasite remain unknown. In the present study, proteins from lysates of Ad, ML and NBL were identified by isobaric tags for relative and absolute quantitation (iTRAQ). A total of 4691 proteins were identified in all the developmental stages, of which 1067 proteins were differentially expressed. The number of up-regulated proteins in NBL was higher than that of the other two groups. The protein profiles from Ad, ML and NBL were compared in pairs. The identified proteins were involved in various functions of T. spiralis life cycle, including sexual maturity, metabolism, utilization of carbohydrates, lipids and nucleotides, and other crucial developmental processes that occur at distinct stages. Further investigation of the transcriptional levels of major sperm protein, serine protease, zinc finger protein, etc. from the different protein profiles using quantitative RT-PCR showed identical results to the iTRAQ analysis. The differentially expressed proteins that are involved in developmental regulation and host-parasite interactions should be further studied.
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Affiliation(s)
- J Y Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - N Z Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - W H Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - L Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - H B Yan
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Z G Qu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - T T Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - J M Cui
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Y Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - W Z Jia
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease, Yangzhou, 225009, PR China
| | - B Q Fu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease, Yangzhou, 225009, PR China.
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87
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Ku HJ, Kwon OS, Kang BS, Lee DS, Lee HS, Park JW. IDH2 knockdown sensitizes tumor cells to emodin cytotoxicity in vitro and in vivo. Free Radic Res 2016; 50:1089-1097. [PMID: 27087448 DOI: 10.1080/10715762.2016.1178739] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Although reactive oxygen species (ROS) work as second messengers at sublethal concentrations, higher levels of ROS can kill cancer cells. Since cellular ROS levels are determined by a balance between ROS generation and removal, the combination of ROS generators, and the depletion of reducing substances greatly enhance ROS levels. Emodin (1,3,8-trihydroxy-6-methyl anthraquinone), a natural anthraquinone derivative from the root and rhizome of numerous plants, is a ROS generator that induces apoptosis in cancer cells. The major enzyme to generate mitochondrial NADPH is the mitochondrial isoenzyme of NADP+-dependent isocitrate dehydrogenase (IDH2). In this report, we demonstrate that IDH2 knockdown effectively enhances emodin-induced apoptosis of mouse melanoma B16F10 cells through the regulation of ROS generation. Our findings suggest that suppression of IDH2 activity results in perturbation of the cellular redox balance and, ultimately, exacerbate emodin-induced apoptotic cell death in B16F10 cells. Our results strongly support a therapeutic strategy in the management of cancer that alters the intracellular redox status by the combination of a ROS generator and the suppression of antioxidant enzyme activity.
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Affiliation(s)
- Hyeong Jun Ku
- a School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group , College of Natural Sciences, Kyungpook National University , Taegu , Republic of Korea
| | - Oh-Shin Kwon
- a School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group , College of Natural Sciences, Kyungpook National University , Taegu , Republic of Korea
| | - Boem Sik Kang
- a School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group , College of Natural Sciences, Kyungpook National University , Taegu , Republic of Korea
| | - Dong-Seok Lee
- a School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group , College of Natural Sciences, Kyungpook National University , Taegu , Republic of Korea
| | - Hyun-Shik Lee
- a School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group , College of Natural Sciences, Kyungpook National University , Taegu , Republic of Korea
| | - Jeen-Woo Park
- a School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group , College of Natural Sciences, Kyungpook National University , Taegu , Republic of Korea
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88
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Chen L, Wilson R, Bennett E, Zosky GR. Identification of vitamin D sensitive pathways during lung development. Respir Res 2016; 17:47. [PMID: 27121020 PMCID: PMC4847230 DOI: 10.1186/s12931-016-0362-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/19/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND We have previously shown that vitamin D deficiency has a detrimental impact on lung development. In this study, we aimed to identify the mechanisms linking vitamin D with lung development using a mouse model of dietary manipulation. METHODS Female offspring were euthanized at different time-points; embryonic day (E)14.5, E17.5 or postnatal day (P)7. Lung tissue was collected for mass spectrometry-based proteomic analysis. Label-free quantitation was used to identify the differentially expressed proteins and ELISA confirmed the expression of selected proteins. Lungs from separate groups of mice were fixed and processed for stereological assessment of lung structure. RESULTS No differences in protein expression between vitamin D deficient and replete mice were detected at E14.5 and E17.5, whereas 66 proteins were differentially expressed in P7 lungs. The expression of pulmonary surfactant-associated protein B (SP-B) and peroxiredoxin 5 (PRDX5) were reduced in P7 lungs of vitamin D deficient mice, while the production of collagen type Ι alpha 1 (COL1A1) was higher in lungs of vitamin D deficient mice. There were no differences in lung volume, parenchymal volume, volume of airspaces or surface area of airspaces between vitamin D deficient and vitamin D replete mice across three time-points. CONCLUSIONS The difference in protein expression during the early postnatal time-point suggests that vitamin D deficiency may induce alterations of lung structure and function in later life during alveolarization stage through impaired pulmonary surfactant production and anti-oxidative stress ability as well as enhanced collagen synthesis. These data provided a plausible mechanism linking maternal vitamin D deficiency with altered postnatal lung function.
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Affiliation(s)
- Ling Chen
- School of Medicine, Faculty of Health, University of Tasmania, Hobart, Tasmania, Australia.
| | - Richard Wilson
- Central Science Laboratory, University of Tasmania, Hobart, Tasmania, Australia
| | - Ellen Bennett
- School of Medicine, Faculty of Health, University of Tasmania, Hobart, Tasmania, Australia
| | - Graeme R Zosky
- School of Medicine, Faculty of Health, University of Tasmania, Hobart, Tasmania, Australia
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89
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Park MH, Jo M, Kim YR, Lee CK, Hong JT. Roles of peroxiredoxins in cancer, neurodegenerative diseases and inflammatory diseases. Pharmacol Ther 2016; 163:1-23. [PMID: 27130805 PMCID: PMC7112520 DOI: 10.1016/j.pharmthera.2016.03.018] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 03/22/2016] [Indexed: 12/29/2022]
Abstract
Peroxiredoxins (PRDXs) are antioxidant enzymes, known to catalyze peroxide reduction to balance cellular hydrogen peroxide (H2O2) levels, which are essential for cell signaling and metabolism and act as a regulator of redox signaling. Redox signaling is a critical component of cell signaling pathways that are involved in the regulation of cell growth, metabolism, hormone signaling, immune regulation and variety of other physiological functions. Early studies demonstrated that PRDXs regulates cell growth, metabolism and immune regulation and therefore involved in the pathologic regulator or protectant of several cancers, neurodegenerative diseases and inflammatory diseases. Oxidative stress and antioxidant systems are important regulators of redox signaling regulated diseases. In addition, thiol-based redox systems through peroxiredoxins have been demonstrated to regulate several redox-dependent process related diseases. In this review article, we will discuss recent findings regarding PRDXs in the development of diseases and further discuss therapeutic approaches targeting PRDXs. Moreover, we will suggest that PRDXs could be targets of several diseases and the therapeutic agents for targeting PRDXs may have potential beneficial effects for the treatment of cancers, neurodegenerative diseases and inflammatory diseases. Future research should open new avenues for the design of novel therapeutic approaches targeting PRDXs.
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Affiliation(s)
- Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951
| | - MiRan Jo
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951
| | - Yu Ri Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951
| | - Chong-Kil Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, 12 Gaesin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951.
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90
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Kim KM, Yang JH, Shin SM, Cho IJ, Ki SH. Sestrin2: A Promising Therapeutic Target for Liver Diseases. Biol Pharm Bull 2016; 38:966-70. [PMID: 26133704 DOI: 10.1248/bpb.b15-00228] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sestrin2 (Sesn2), a highly conserved antioxidant protein, is induced by various stresses, including oxidative and energetic stress, and protects cells against those stresses. In normal physiological conditions, redox-homeostasis plays an essential role in cell survival and performs the cellular functions to protect the cells against oxidative damage. The liver is susceptible to oxidative stress, since it is responsible for xenobiotic detoxification and energy metabolism. For this reason, oxidative stress is associated with the pathogenesis of liver diseases. Recently, the role of Sesn2 has been investigated in liver injury and related diseases. In this paper, we review the role of Sesn2 in the pathophysiology of liver diseases and the potential clinical applications of Sesn2 as a therapeutic target to prevent/treat liver diseases. This article promotes our understanding of liver disease progression and advances the development of strategies for pharmacological intervention.
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91
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Yang YJ, Baek JY, Goo J, Shin Y, Park JK, Jang JY, Wang SB, Jeong W, Lee HJ, Um HD, Lee SK, Choi Y, Rhee SG, Chang TS. Effective Killing of Cancer Cells Through ROS-Mediated Mechanisms by AMRI-59 Targeting Peroxiredoxin I. Antioxid Redox Signal 2016; 24:453-69. [PMID: 26528922 DOI: 10.1089/ars.2014.6187] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AIMS The intrinsic increase of reactive oxygen species (ROS) production in cancer cells after malignant transformation frequently induces redox adaptation, leading to enhanced antioxidant capacity. Peroxiredoxin I (PrxI), an enzyme responsible for eliminating hydrogen peroxide, has been found to be elevated in many types of cancer cells. Since overexpression of PrxI promoted cancer cells' survival and resistance to chemotherapy and radiotherapy, PrxI has been proposed as a therapeutic target for anticancer drugs. In this study, we aimed to investigate the anticancer efficacy of a small molecule inhibitor of PrxI. RESULTS By a high-throughput screening approach, we identified AMRI-59 as a potent inhibitor of PrxI. AMRI-59 increased cellular ROS, leading to the activation of both mitochondria- and apoptosis signal-regulated kinase-1-mediated signaling pathways, resulting in apoptosis of A549 human lung adenocarcinoma. AMRI-59 caused no significant changes in ROS level, proliferation, and apoptosis of PrxI-knockdown A549 cells by RNA interference. PrxI overexpression or N-acetylcysteine pretreatment abrogated AMRI-59-induced cytotoxicity in A549 cells. AMRI-59 rendered tumorigenic ovarian cells more susceptible to ROS-mediated death compared with nontumorigenic cells. Moreover, significant antitumor activity of AMRI-59 was observed in mouse tumor xenograft model implanted with A549 cells with no apparent acute toxicity. INNOVATION This study offers preclinical proof-of-concept for AMRI-59, a lead small molecule inhibitor of PrxI, as an anticancer agent. CONCLUSIONS Our results highlight a promising strategy for cancer therapy that preferentially eradicates cancer cells by targeting the PrxI-mediated redox-dependent survival pathways.
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Affiliation(s)
- Yeon Ju Yang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea.,2 Brain Korea 21 PLUS Project for Medical Science, Yonsei University , Seoul, Republic of Korea
| | - Jin Young Baek
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Jail Goo
- 3 College of Life Sciences and Biotechnology, Korea University , Seoul, Republic of Korea
| | - Yoonho Shin
- 4 College of Pharmacy, Seoul National University , Seoul, Republic of Korea
| | - Jong Kuk Park
- 5 Laboratory of Radiation Cancer Biology, Korea Institute of Radiological and Medical Sciences , Seoul, Republic of Korea
| | - Ji Yong Jang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Su Bin Wang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Woojin Jeong
- 6 Division of Life Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Hwa Jeong Lee
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea.,7 College of Pharmacy, Ewha Womans University , Seoul, Republic of Korea
| | - Hong-Duck Um
- 5 Laboratory of Radiation Cancer Biology, Korea Institute of Radiological and Medical Sciences , Seoul, Republic of Korea
| | - Sang Kook Lee
- 4 College of Pharmacy, Seoul National University , Seoul, Republic of Korea
| | - Yongseok Choi
- 3 College of Life Sciences and Biotechnology, Korea University , Seoul, Republic of Korea
| | - Sue Goo Rhee
- 8 Yonsei Biomedical Research Institute, Yonsei University College of Medicine , Seoul, Republic of Korea
| | - Tong-Shin Chang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea.,7 College of Pharmacy, Ewha Womans University , Seoul, Republic of Korea
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92
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Ozkosem B, Feinstein SI, Fisher AB, O'Flaherty C. Absence of Peroxiredoxin 6 Amplifies the Effect of Oxidant Stress on Mobility and SCSA/CMA3 Defined Chromatin Quality and Impairs Fertilizing Ability of Mouse Spermatozoa. Biol Reprod 2016; 94:68. [PMID: 26792942 PMCID: PMC4829091 DOI: 10.1095/biolreprod.115.137646] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/15/2016] [Indexed: 12/22/2022] Open
Abstract
Oxidative stress, the imbalance between reactive oxygen species production and antioxidant defenses, is associated with male infertility. Peroxiredoxins (PRDXs) are antioxidant enzymes with a wide distribution in spermatozoa. PRDX6 is highly abundant and located in all subcellular compartments of the spermatozoon. Infertile men have lower levels of sperm PRDX6 associated with low sperm motility and high DNA damage. In order to better understand the role of PRDX6 in male reproduction, the aim of this study was to elucidate the impact of the lack of PRDX6 on male mouse fertility. Spermatozoa lacking PRDX6 showed significantly increased levels of cellular oxidative damage evidenced by high levels of lipid peroxidation, 8-hydroxy-deoxyguanosine (DNA oxidation), and protein oxidation (S-glutathionylation and carbonylation), lower sperm chromatin quality (high DNA fragmentation and low DNA compaction, due to low levels of protamination and a high percentage of free thiols), along with decreased sperm motility and impairment of capacitation as compared with wild-type (WT) spermatozoa. These manifestations of damage are exacerbated by tert-butyl hydroperoxide treatment in vivo. While WT males partially recovered the quality of their spermatozoa (in terms of motility and sperm DNA integrity), Prdx6(-/-) males showed higher levels of sperm damage (lower motility and chromatin integrity) 6 mo after the end of treatment. In conclusion, Prdx6(-/-) males are more vulnerable to oxidative stress than WT males, resulting in impairment of sperm quality and ability to fertilize the oocyte, compatible with the subfertility phenotype observed in these knockout mice.
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Affiliation(s)
- Burak Ozkosem
- Urology Research Laboratory, Research Institute of the McGill University Health Centre, McGill University, Montréal, Québec, Canada Department of Surgery (Urology Division), McGill University, Montréal, Québec, Canada
| | - Sheldon I Feinstein
- Institute for Environmental Medicine, Department of Physiology, University of Pennsylvania, Philadelphia, Pennsylvania Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Aron B Fisher
- Institute for Environmental Medicine, Department of Physiology, University of Pennsylvania, Philadelphia, Pennsylvania Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Cristian O'Flaherty
- Urology Research Laboratory, Research Institute of the McGill University Health Centre, McGill University, Montréal, Québec, Canada Department of Surgery (Urology Division), McGill University, Montréal, Québec, Canada Department of Pharmacology and Therapeutics, McGill University, Montréal, Québec, Canada
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Leukemia Inhibitory Factor Protects Neurons from Ischemic Damage via Upregulation of Superoxide Dismutase 3. Mol Neurobiol 2016; 54:608-622. [PMID: 26746670 PMCID: PMC5026633 DOI: 10.1007/s12035-015-9587-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 11/29/2015] [Indexed: 12/13/2022]
Abstract
Leukemia inhibitory factor (LIF) has been shown to protect oligodendrocytes from ischemia by upregulating endogenous antioxidants. The goal of this study was to determine whether LIF protects neurons during stroke by upregulating superoxide dismutase 3 (SOD3). Animals were administered phosphate-buffered saline (PBS) or 125 μg/kg LIF at 6, 24, and 48 h after middle cerebral artery occlusion or sham surgery. Neurons were isolated from rat pups on embryonic day 18 and used between 7 and 15 days in culture. Cells were treated with LIF and/or 10 μM Akt inhibitor IV with PBS and 0.1 % DMSO acting as vehicle controls. Neurons transfected with scrambled or SOD3 small interfering RNA (siRNA) were subjected to 24-h ischemia after PBS or LIF treatment. LIF significantly increased superoxide dismutase activity and SOD3 expression in ipsilateral brain tissue compared to PBS. Following 24-h ischemia, LIF reduced cell death and increased SOD3 messenger RNA (mRNA) in vitro compared to PBS. Adding Akt inhibitor IV with LIF counteracted the decrease in cell death. Partially silencing the expression of SOD3 using siRNA prior to LIF treatment counteracted the protective effect of LIF-alone PBS treatment. These results indicate that LIF protects neurons in vivo and in vitro via upregulation of SOD3.
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94
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Triplett JC, Swomley AM, Cai J, Klein JB, Butterfield DA. Quantitative phosphoproteomic analyses of the inferior parietal lobule from three different pathological stages of Alzheimer's disease. J Alzheimers Dis 2016; 49:45-62. [PMID: 26444780 DOI: 10.3233/jad-150417] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Alzheimer's disease (AD), the most common age-related neurodegenerative disorder, is clinically characterized by progressive neuronal loss resulting in loss of memory and dementia. AD is histopathologically characterized by the extensive distribution of senile plaques and neurofibrillary tangles, and synapse loss. Amnestic mild cognitive impairment (MCI) is generally accepted to be an early stage of AD. MCI subjects have pathology and symptoms that fall on the scale intermediately between 'normal' cognition with little or no pathology and AD. A rare number of individuals, who exhibit normal cognition on psychometric tests but whose brains show widespread postmortem AD pathology, are classified as 'asymptomatic' or 'preclinical' AD (PCAD). In this study, we evaluated changes in protein phosphorylation states in the inferior parietal lobule of subjects with AD, MCI, PCAD, and control brain using a 2-D PAGE proteomics approach in conjunction with Pro-Q Diamond phosphoprotein staining. Statistically significant changes in phosphorylation levels were found in 19 proteins involved in energy metabolism, neuronal plasticity, signal transduction, and oxidative stress response. Changes in the disease state phosphoproteome may provide insights into underlying mechanisms for the preservation of memory with expansive AD pathology in PCAD and the progressive memory loss in amnestic MCI that escalates to the dementia and the characteristic pathology of AD brain.
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Affiliation(s)
- Judy C Triplett
- Department of Chemistry, University of Kentucky, Lexington, KY, USA
| | - Aaron M Swomley
- Department of Chemistry, University of Kentucky, Lexington, KY, USA
| | - Jian Cai
- Department of Nephrology and Proteomics Center, University of Louisville, Louisville, KY, USA
| | - Jon B Klein
- Department of Nephrology and Proteomics Center, University of Louisville, Louisville, KY, USA
| | - D Allan Butterfield
- Department of Chemistry, University of Kentucky, Lexington, KY, USA
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
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95
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Wu X, Ji P, Zhang L, Bu G, Gu H, Wang X, Xiong Y, Zuo B. The Expression of Porcine Prdx6 Gene Is Up-Regulated by C/EBPβ and CREB. PLoS One 2015; 10:e0144851. [PMID: 26659441 PMCID: PMC4699452 DOI: 10.1371/journal.pone.0144851] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 11/24/2015] [Indexed: 12/18/2022] Open
Abstract
Peroxiredoxin6 (Prdx6) is one of the peroxiredoxin (Prdxs) family members that play an important role in maintaining cell homeostasis. Our previous studies demonstrated that Prdx6 was significantly associated with pig meat quality, especially meat tenderness. However, the transcriptional regulation of porcine Prdx6 remains unclear. In this study, we determined the transcription start site (TSS) of porcine Prdx6 gene by 5' rapid-amplification of cDNA ends (5' RACE). Several regulatory elements including CCAAT/enhancer-binding proteinβ (C/EBPβ), Myogenic Differentiation (MyoD), cAMP response element binding protein (CREB), stimulating protein1 (Sp1) and heat shock factor (HSF) binding sites were found by computational analyses together with luciferase reporter system. Overexpression and RNA interference experiments showed that C/EBPβ or CREB could up-regulate the expression of porcine Prdx6 gene at both mRNA and protein level. Electrophoretic mobility shift assays (EMSA) and chromatin immunoprecipitation assays (ChIP) confirmed that C/EBPβ and CREB could interact with Prdx6 promoter. Immuoprecipitation results also showed that C/EBPβ could interact with Prdx6 in vivo. Taken together, our findings identified C/EBPβ and CREB as the important regulators of porcine Prdx6 gene expression, and offered clues for further investigation of Prdx6 gene function.
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Affiliation(s)
- Xinyu Wu
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Panlong Ji
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Liang Zhang
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Guowei Bu
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Hao Gu
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Xiaojing Wang
- Department of Basic Veterinary Physiology and Biochemistry Laboratory, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Yuanzhu Xiong
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Bo Zuo
- Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Key Lab of Agricultural Animal Genetics and Breeding, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P.R. China
- * E-mail:
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96
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Lim JM, Lee KS, Woo HA, Kang D, Rhee SG. Control of the pericentrosomal H2O2 level by peroxiredoxin I is critical for mitotic progression. J Cell Biol 2015; 210:23-33. [PMID: 26150388 PMCID: PMC4493999 DOI: 10.1083/jcb.201412068] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Reversible oxidative inactivation of centrosome-bound protein phosphatases such as Cdc14B by H2O2 is likely responsible for the inhibition of Cdk1-opposing phosphatases during early mitosis, which prevents premature degradation of mitotic activators. Proteins associated with the centrosome play key roles in mitotic progression in mammalian cells. The activity of Cdk1-opposing phosphatases at the centrosome must be inhibited during early mitosis to prevent premature dephosphorylation of Cdh1—an activator of the ubiquitin ligase anaphase-promoting complex/cyclosome—and the consequent premature degradation of mitotic activators. In this paper, we show that reversible oxidative inactivation of centrosome-bound protein phosphatases such as Cdc14B by H2O2 is likely responsible for this inhibition. The intracellular concentration of H2O2 increases as the cell cycle progresses. Whereas the centrosome is shielded from H2O2 through its association with the H2O2-eliminating enzyme peroxiredoxin I (PrxI) during interphase, the centrosome-associated PrxI is selectively inactivated through phosphorylation by Cdk1 during early mitosis, thereby exposing the centrosome to H2O2 and facilitating inactivation of centrosome-bound phosphatases. Dephosphorylation of PrxI by okadaic acid–sensitive phosphatases during late mitosis again shields the centrosome from H2O2 and thereby allows the reactivation of Cdk1-opposing phosphatases at the organelle.
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Affiliation(s)
- Jung Mi Lim
- Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, South Korea
| | - Kyung S Lee
- Laboratory of Metabolism, National Cancer Institute, Bethesda, MD 20892
| | - Hyun Ae Woo
- Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, South Korea
| | - Dongmin Kang
- Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, South Korea
| | - Sue Goo Rhee
- Yonsei Biomedical Research Institute, Yonsei University, Seoul 120-749, South Korea
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97
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Cervellati C, Sticozzi C, Romani A, Belmonte G, De Rasmo D, Signorile A, Cervellati F, Milanese C, Mastroberardino PG, Pecorelli A, Savelli V, Forman HJ, Hayek J, Valacchi G. Impaired enzymatic defensive activity, mitochondrial dysfunction and proteasome activation are involved in RTT cell oxidative damage. Biochim Biophys Acta Mol Basis Dis 2015; 1852:2066-74. [DOI: 10.1016/j.bbadis.2015.07.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 07/07/2015] [Accepted: 07/15/2015] [Indexed: 12/16/2022]
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98
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Lee EY, Kang JY, Kim KW. Expression of cyclooxygenase-2, peroxiredoxin I, peroxiredoxin 6 and nuclear factor-κB in oral squamous cell carcinoma. Oncol Lett 2015; 10:3129-3136. [PMID: 26722300 DOI: 10.3892/ol.2015.3705] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 07/16/2015] [Indexed: 11/05/2022] Open
Abstract
Tumor development and progression are multistep processes that involve local tumor growth and invasion, followed by metastasis. The aggressiveness of the tumor is the major determinant of the mortality of oral cancer patients. The present study investigates whether the expression levels of cyclooxygenase-2 (COX-2), nuclear factor-κB (NF-κB), peroxiredoxin 1 (PRDX1) and PRDX6 are associated with the development, proliferation, differentiation and recurrence of oral squamous cell carcinoma (OSCC). The mRNA expression levels of COX-2, NF-κB, PRDX1 and PRDX6 were examined in 50 OSCC specimens and 19 normal oral mucosae by quantitative polymerase chain reaction (qPCR). qPCR analysis showed that the mRNA levels of COX-2 in OSCC were significantly higher than those in the normal oral mucosae (P=0.021). The expression levels of PRDX1 in high-stage tumors (T3 and T4) were significantly elevated compared with those in low-stage tumors (T1) (P=0.047). Additionally, the expression levels of NF-κB in the high-grade tumor were significantly elevated compared with those in the low-grade tumors (P=0.030). Overall, it was indicated that the expression of COX-2 is strongly associated with the development of OSCC. Moreover, the enhanced expression of PRDX1 and NF-κB may function in the progression of OSCC, which serves as a useful marker for prognosis in patients with oral cancer.
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Affiliation(s)
- Eun-Young Lee
- Department of Oral and Maxillofacial Surgery, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Chungbuk 361-711, Republic of Korea
| | - Ji-Yeon Kang
- Department of Oral and Maxillofacial Surgery, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Gyeonggi 445-170, Republic of Korea
| | - Kyoung-Won Kim
- Department of Oral and Maxillofacial Surgery, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Chungbuk 361-711, Republic of Korea
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99
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Fakruzzaman M, Ghanem N, Bang JI, Ha AN, Lee KL, Sohn SH, Wang Z, Lee DS, Kong IK. Effect of peroxiredoxin II on the quality and mitochondrial activity of pre-implantation bovine embryos. Anim Reprod Sci 2015; 159:172-83. [DOI: 10.1016/j.anireprosci.2015.06.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 05/26/2015] [Accepted: 06/22/2015] [Indexed: 10/23/2022]
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100
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