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Signaling related with biphasic effects of bisphenol A (BPA) on Sertoli cell proliferation: A comparative proteomic analysis. Biochim Biophys Acta Gen Subj 2014; 1840:2663-73. [DOI: 10.1016/j.bbagen.2014.05.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 05/02/2014] [Accepted: 05/07/2014] [Indexed: 01/15/2023]
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52
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Mehmeti I, Lortz S, Elsner M, Lenzen S. Peroxiredoxin 4 improves insulin biosynthesis and glucose-induced insulin secretion in insulin-secreting INS-1E cells. J Biol Chem 2014; 289:26904-26913. [PMID: 25122762 DOI: 10.1074/jbc.m114.568329] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Oxidative folding of (pro)insulin is crucial for its assembly and biological function. This process takes place in the endoplasmic reticulum (ER) and is accomplished by protein disulfide isomerase and ER oxidoreductin 1β, generating stoichiometric amounts of hydrogen peroxide (H2O2) as byproduct. During insulin resistance in the prediabetic state, increased insulin biosynthesis can overwhelm the ER antioxidative and folding capacity, causing an imbalance in the ER redox homeostasis and oxidative stress. Peroxiredoxin 4 (Prdx4), an ER-specific antioxidative peroxidase can utilize luminal H2O2 as driving force for reoxidizing protein disulfide isomerase family members, thus efficiently contributing to disulfide bond formation. Here, we examined the functional significance of Prdx4 on β-cell function with emphasis on insulin content and secretion during stimulation with nutrient secretagogues. Overexpression of Prdx4 in glucose-responsive insulin-secreting INS-1E cells significantly metabolized luminal H2O2 and improved the glucose-induced insulin secretion, which was accompanied by the enhanced proinsulin mRNA transcription and insulin content. This β-cell beneficial effect was also observed upon stimulation with the nutrient insulin secretagogue combination of leucine plus glutamine, indicating that the effect is not restricted to glucose. However, knockdown of Prdx4 had no impact on H2O2 metabolism or β-cell function due to the fact that Prdx4 expression is negligibly low in pancreatic β-cells. Moreover, we provide evidence that the constitutively low expression of Prdx4 is highly susceptible to hyperoxidation in the presence of high glucose. Overall, these data suggest an important role of Prdx4 in maintaining insulin levels and improving the ER folding capacity also under conditions of a high insulin requirement.
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Affiliation(s)
- Ilir Mehmeti
- Institute of Clinical Biochemistry, Hannover Medical School, 30623 Hannover, Germany
| | - Stephan Lortz
- Institute of Clinical Biochemistry, Hannover Medical School, 30623 Hannover, Germany
| | - Matthias Elsner
- Institute of Clinical Biochemistry, Hannover Medical School, 30623 Hannover, Germany
| | - Sigurd Lenzen
- Institute of Clinical Biochemistry, Hannover Medical School, 30623 Hannover, Germany.
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Differential proteomic analysis of the pancreas of diabetic db/db mice reveals the proteins involved in the development of complications of diabetes mellitus. Int J Mol Sci 2014; 15:9579-93. [PMID: 24886809 PMCID: PMC4100111 DOI: 10.3390/ijms15069579] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 05/14/2014] [Accepted: 05/19/2014] [Indexed: 12/31/2022] Open
Abstract
Type 2 diabetes mellitus is characterized by hyperglycemia and insulin-resistance. Diabetes results from pancreatic inability to secrete the insulin needed to overcome this resistance. We analyzed the protein profile from the pancreas of ten-week old diabetic db/db and wild type mice through proteomics. Pancreatic proteins were separated in two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and significant changes in db/db mice respect to wild type mice were observed in 27 proteins. Twenty five proteins were identified by matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) and their interactions were analyzed using search tool for the retrieval of interacting genes/proteins (STRING) and database for annotation, visualization and integrated discovery (DAVID). Some of these proteins were Pancreatic α-amylase, Cytochrome b5, Lithostathine-1, Lithostathine-2, Chymotrypsinogen B, Peroxiredoxin-4, Aspartyl aminopeptidase, Endoplasmin, and others, which are involved in the metabolism of carbohydrates and proteins, as well as in oxidative stress, and inflammation. Remarkably, these are mostly endoplasmic reticulum proteins related to peptidase activity, i.e., they are involved in proteolysis, glucose catabolism and in the tumor necrosis factor-mediated signaling pathway. These results suggest mechanisms for insulin resistance, and the chronic inflammatory state observed in diabetes.
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Gerrits EG, Alkhalaf A, Landman GWD, van Hateren KJJ, Groenier KH, Struck J, Schulte J, Gans ROB, Bakker SJL, Kleefstra N, Bilo HJG. Serum peroxiredoxin 4: a marker of oxidative stress associated with mortality in type 2 diabetes (ZODIAC-28). PLoS One 2014; 9:e89719. [PMID: 24586984 PMCID: PMC3934910 DOI: 10.1371/journal.pone.0089719] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 01/22/2014] [Indexed: 12/04/2022] Open
Abstract
Background Oxidative stress plays an underlying pathophysiologic role in the development of diabetes complications. The aim of this study was to investigate peroxiredoxin 4 (Prx4), a proposed novel biomarker of oxidative stress, and its association with and capability as a biomarker in predicting (cardiovascular) mortality in type 2 diabetes mellitus. Methods Prx4 was assessed in baseline serum samples of 1161 type 2 diabetes patients. Cox proportional hazard models were used to evaluate the relationschip between Prx4 and (cardiovascular) mortality. Risk prediction capabilities of Prx4 for (cardiovascular) mortality were assessed with Harrell’s C statistic, the integrated discrimination improvement and net reclassification improvement. Results Mean age was 67 and the median diabetes duration was 4.0 years. After a median follow-up period of 5.8 years, 327 patients died; 137 cardiovascular deaths. Prx4 was associated with (cardiovascular) mortality. The Cox proportional hazard models added the variables: Prx4 (model 1); age and gender (model 2), and BMI, creatinine, smoking, diabetes duration, systolic blood pressure, cholesterol-HDL ratio, history of macrovascular complications, and albuminuria (model 3). Hazard ratios (HR) (95% CI) for cardiovascular mortality were 1.93 (1.57 – 2.38), 1.75 (1.39 – 2.20), and 1.63 (1.28 – 2.09) for models 1, 2 and 3, respectively. HR for all-cause mortality were 1.73 (1.50 – 1.99), 1.50 (1.29 – 1.75), and 1.44 (1.23 – 1.67) for models 1, 2 and 3, respectively. Addition of Prx4 to the traditional risk factors slightly improved risk prediction of (cardiovascular) mortality. Conclusions Prx4 is independently associated with (cardiovascular) mortality in type 2 diabetes patients. After addition of Prx4 to the traditional risk factors, there was a slightly improvement in risk prediction of (cardiovascular) mortality in this patient group.
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Affiliation(s)
- Esther G. Gerrits
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
- Diabetes Centre, Isala Clinics, Zwolle, The Netherlands
- * E-mail:
| | - Alaa Alkhalaf
- Diabetes Centre, Isala Clinics, Zwolle, The Netherlands
- Department of Gastroenterology, Isala Clinics, Zwolle, The Netherlands
| | | | - Kornelis J. J. van Hateren
- Diabetes Centre, Isala Clinics, Zwolle, The Netherlands
- Langerhans Medical Research Group, Zwolle, The Netherlands
| | - Klaas H. Groenier
- Diabetes Centre, Isala Clinics, Zwolle, The Netherlands
- Department of General Practice, University Medical Center Groningen, Groningen, The Netherlands
| | - Joachim Struck
- Thermo Fisher Scientific, BRAHMS Biomarkers, Research Department, Hennigsdorf, Germany
| | - Janin Schulte
- Thermo Fisher Scientific, BRAHMS Biomarkers, Research Department, Hennigsdorf, Germany
| | - Reinold O. B. Gans
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Stephan J. L. Bakker
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Nanne Kleefstra
- Diabetes Centre, Isala Clinics, Zwolle, The Netherlands
- Langerhans Medical Research Group, Zwolle, The Netherlands
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Henk J. G. Bilo
- Diabetes Centre, Isala Clinics, Zwolle, The Netherlands
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
- Department of Internal Medicine, Isala Clinics, Zwolle, The Netherlands
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Ren L, Sun Y, Wang R, Xu T. Gene structure, immune response and evolution: comparative analysis of three 2-Cys peroxiredoxin members of miiuy croaker, Miichthys miiuy. FISH & SHELLFISH IMMUNOLOGY 2014; 36:409-416. [PMID: 24378678 DOI: 10.1016/j.fsi.2013.12.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/04/2013] [Accepted: 12/18/2013] [Indexed: 06/03/2023]
Abstract
Peroxiredoxin family was a superfamily of selenium independent peroxidases. It was divided into six subtypes: Prx1-4 (typical 2-Cys), Prx5 (atypical 2-Cys) and Prx6 (1-Cys). This study reports the isolation and characterization three 2-Cys peroxiredoxin members of full cDNA and genomic clones from miiuy croaker (Miichthys miiuy). The genetic structure analysis showed that the C-terminal catalytic Cys positioned within GEVCPAXW. This sequence was different between Prx3 and Prx4, but was conservative in different species of the same gene, the X base was S in Prx3 but G in Prx4. Tissues expression analysis showed that the expressions of Prx3 in liver and brain were much higher than other tissues; the values of Prx4 in spleen, intestine and kidney were significantly higher than others; and the expression of Prx5 in muscle was higher than that of other tissues. Real-time PCR results showed that there were highest values of these three Prxs emerging with the time post challenge of Vibrio anguillarum in liver, spleen and kidney although the highest value time differed from each other and the expression of these three genes also changed with the change of infection time. These results indicated that expression analysis of these three genes play some positive function against pathogenic bacteria infection in miiuy croaker.
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Affiliation(s)
- Liping Ren
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan 316000, China
| | - Yuena Sun
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan 316000, China
| | - Rixin Wang
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan 316000, China.
| | - Tianjun Xu
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan 316000, China.
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Noguchi H, Yamada S, Nabeshima A, Guo X, Tanimoto A, Wang KY, Kitada S, Tasaki T, Takama T, Shimajiri S, Horlad H, Komohara Y, Izumi H, Kohno K, Ichijo H, Sasaguri Y. Depletion of apoptosis signal-regulating kinase 1 prevents bile duct ligation-induced necroinflammation and subsequent peribiliary fibrosis. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:644-61. [PMID: 24412091 DOI: 10.1016/j.ajpath.2013.11.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 11/01/2013] [Accepted: 11/26/2013] [Indexed: 12/17/2022]
Abstract
Apoptosis signal-regulating kinase 1 (ASK1), also known as mitogen-activated protein kinase kinase kinase (MAP3K), is ubiquitously expressed and situated in an important upstream position of many signal transduction pathways. ASK1 plays a pivotal role in stressor-induced cell survival and inflammatory reactions. To ascertain the regulatory functions of ASK1 in bile duct ligation (BDL)-induced liver injury, we examined the net effects of ASK1 depletion on hepatic necroinflammation and/or fibrosis. We subjected C57BL/6 wild-type (WT) or ASK1-deficient (ASK1(-/-)) mice to sham or BDL surgery for 14 days. In day 3 BDL animals, ASK1(-/-) mice had significantly fewer bile infarcts along with more reduced interlobular or portal inflammatory infiltrate of various immune cells, including neutrophils, compared with WT mice in which ASK1 expression was markedly activated. Morphologically apoptotic hepatocytes or cholangiocytes were negligible in both the sham and BDL animals. In contrast, ASK1(-/-) mice had significantly less proliferating activity of not only hepatocytes but also large cholangiocytes than WT mice. Day 14 BDL ASK1(-/-) mice manifested potential antifibrogenic aspects of ASK1 deficiency, characterized by significantly fewer activated peribiliary fibrogenic cells and peribiliary fibrosis. These observations indicate that ASK1-mediated hepatic necroinflammation and proliferation, but not apoptosis, are closely linked to liver fibrosis and fibrogenesis. A specific ASK1 pathway blocker or inhibitor might offer a therapeutic strategy against human cholestatic diseases.
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Affiliation(s)
- Hirotsugu Noguchi
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Sohsuke Yamada
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
| | - Atsunori Nabeshima
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Xin Guo
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Akihide Tanimoto
- Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kitakyushu, Japan
| | - Ke-Yong Wang
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Bio-information Research Center, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Shohei Kitada
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Urology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Takashi Tasaki
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Tatsuo Takama
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Emergency Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Shohei Shimajiri
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hasita Horlad
- Department of Cell Pathology, Faculty of Medical and Pharmaceutical Sciences, Graduate School of Medical Sciences, Kumamoto University, Kitakyushu, Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Faculty of Medical and Pharmaceutical Sciences, Graduate School of Medical Sciences, Kumamoto University, Kitakyushu, Japan
| | - Hiroto Izumi
- Department of Occupational Pneumology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kimitoshi Kohno
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hidenori Ichijo
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, and Core Research for Evolutional Science and Technology, Tokyo, Japan
| | - Yasuyuki Sasaguri
- Departments of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Nabeshima A, Yamada S, Guo X, Tanimoto A, Wang KY, Shimajiri S, Kimura S, Tasaki T, Noguchi H, Kitada S, Watanabe T, Fujii J, Kohno K, Sasaguri Y. Peroxiredoxin 4 protects against nonalcoholic steatohepatitis and type 2 diabetes in a nongenetic mouse model. Antioxid Redox Signal 2013; 19:1983-98. [PMID: 23477499 PMCID: PMC3869472 DOI: 10.1089/ars.2012.4946] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS Consumption of a high-fructose diet (HFrD) can induce the development of a metabolic syndrome, manifesting as nonalcoholic steatohepatitis (NASH) and/or type 2 diabetes mellitus (T2DM), via a process in which oxidative stress plays a critical role. Peroxiredoxin 4 (PRDX4) is a unique and only known secretory member of the PRDX antioxidant family. However, its putative roles in the development of NASH and/or T2DM have not been investigated. RESULTS To elucidate the functions of PRDX4 in a metabolic syndrome, we established a nongenetic mouse model of T2DM by feeding mice a HFrD after injecting a relatively low dose of streptozotocin. Compared with wild-type (WT), human PRDX4 transgenic (Tg) mice exhibited significant improvements in insulin resistance, characterized by a lower glucose and insulin concentration and faster responses in glucose tolerance tests. The liver of Tg also showed less severe vesicular steatosis, inflammation, and fibrosis, along with lower lipid concentrations, lower levels of oxidative stress markers, more decreased expression of hepatic aminotransferase, and more reduced stellate cell activation than those in the WT liver, reminiscent of human early NASH. Hepatocyte apoptosis was also significantly repressed in Tg mice. By contrast, serum adiponectin levels and hepatic adiponectin receptor expression were significantly lower in WT mice, consistent with greater insulin resistance in the peripheral liver tissue compared with Tg mice. INNOVATION AND CONCLUSION Our data for the first time show that PRDX4 may protect against NASH, T2DM, and the metabolic syndrome by ameliorating oxidative stress-induced injury.
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Affiliation(s)
- Atsunori Nabeshima
- 1 Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health , Kitakyushu, Japan
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Chen XW, Kang LH, Ding D, Liu Q, Wang JX, Kang CJ. Characterization of a 2-Cys peroxiredoxin IV in Marsupenaeus japonicus (kuruma shrimp) and its role in the anti-viral immunity. FISH & SHELLFISH IMMUNOLOGY 2013; 35:1848-1857. [PMID: 24056278 DOI: 10.1016/j.fsi.2013.09.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 09/07/2013] [Accepted: 09/09/2013] [Indexed: 06/02/2023]
Abstract
Accumulating evidence suggests that peroxiredoxins (Prx) are key molecules in the pathogenesis of various infectious diseases and are potential therapeutic targets for major diseases such as cancers. In this study, we report a peroxiredoxin IV (Prx IV) in Marsupenaeus japonicus, designated as MjPrx IV, which exhibited peroxidase activity and participated in the anti-white spot syndrome virus (WSSV) immune response. MjPrx IV is a 245-amino acid polypeptide with a predicted 19-amino acid signal peptide, an Ahpc-TSA domain, and a 1-Cys PrxC domain. Phylogenetic analysis revealed that the protein belongs to the Prx IV subfamily. MjPrx IV transcripts were detected in the gills, hepatopancreas, heart, stomach, ovaries, spermary, and intestine tissues, and are upregulated in the gonads, gills and hemocytes of shrimp after WSSV challenge. The mature MjPrx IV peptide was recombinantly expressed in an Escherichia coli system. The protein exhibited peroxidase activity. Furthermore, dsRNA suppression of MjPrx IV increased WSSV replication in shrimp, whereas rMjPrx IV injection into shrimp decreased WSSV replication. These data suggest that MjPrx IV has an important role in shrimp antiviral immunity. To our knowledge, this study is the first to report a shrimp Prx IV that has anti-WSSV activity.
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Affiliation(s)
- Xiao-Wei Chen
- The Key Laboratory of Plant Cell Engineering and Germplasm Innovation of Ministry of Education, School of Life Sciences, Shandong University, 27 Shanda South Road, Jinan, Shandong 250100, China; Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, 27 Shanda South Road, Jinan, Shandong 250100, China
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Hanschmann EM, Godoy JR, Berndt C, Hudemann C, Lillig CH. Thioredoxins, glutaredoxins, and peroxiredoxins--molecular mechanisms and health significance: from cofactors to antioxidants to redox signaling. Antioxid Redox Signal 2013; 19:1539-605. [PMID: 23397885 PMCID: PMC3797455 DOI: 10.1089/ars.2012.4599] [Citation(s) in RCA: 489] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 02/01/2013] [Accepted: 02/07/2013] [Indexed: 12/19/2022]
Abstract
Thioredoxins (Trxs), glutaredoxins (Grxs), and peroxiredoxins (Prxs) have been characterized as electron donors, guards of the intracellular redox state, and "antioxidants". Today, these redox catalysts are increasingly recognized for their specific role in redox signaling. The number of publications published on the functions of these proteins continues to increase exponentially. The field is experiencing an exciting transformation, from looking at a general redox homeostasis and the pathological oxidative stress model to realizing redox changes as a part of localized, rapid, specific, and reversible redox-regulated signaling events. This review summarizes the almost 50 years of research on these proteins, focusing primarily on data from vertebrates and mammals. The role of Trx fold proteins in redox signaling is discussed by looking at reaction mechanisms, reversible oxidative post-translational modifications of proteins, and characterized interaction partners. On the basis of this analysis, the specific regulatory functions are exemplified for the cellular processes of apoptosis, proliferation, and iron metabolism. The importance of Trxs, Grxs, and Prxs for human health is addressed in the second part of this review, that is, their potential impact and functions in different cell types, tissues, and various pathological conditions.
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Affiliation(s)
- Eva-Maria Hanschmann
- Institute for Medical Biochemistry and Molecular Biology, University Medicine, Ernst-Moritz Arndt University, Greifswald, Germany
| | - José Rodrigo Godoy
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Carsten Berndt
- Department of Neurology, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
| | - Christoph Hudemann
- Institute of Laboratory Medicine, Molecular Diagnostics, Philipps University, Marburg, Germany
| | - Christopher Horst Lillig
- Institute for Medical Biochemistry and Molecular Biology, University Medicine, Ernst-Moritz Arndt University, Greifswald, Germany
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Destroy and exploit: catalyzed removal of hydroperoxides from the endoplasmic reticulum. Int J Cell Biol 2013; 2013:180906. [PMID: 24282412 PMCID: PMC3824332 DOI: 10.1155/2013/180906] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 09/05/2013] [Indexed: 01/06/2023] Open
Abstract
Peroxidases are enzymes that reduce hydroperoxide substrates. In many cases, hydroperoxide reduction is coupled to the formation of a disulfide bond, which is transferred onto specific acceptor molecules, the so-called reducing substrates. As such, peroxidases control the spatiotemporal distribution of diffusible second messengers such as hydrogen peroxide (H2O2) and generate new disulfides. Members of two families of peroxidases, peroxiredoxins (Prxs) and glutathione peroxidases (GPxs), reside in different subcellular compartments or are secreted from cells. This review discusses the properties and physiological roles of PrxIV, GPx7, and GPx8 in the endoplasmic reticulum (ER) of higher eukaryotic cells where H2O2 and—possibly—lipid hydroperoxides are regularly produced. Different peroxide sources and reducing substrates for ER peroxidases are critically evaluated. Peroxidase-catalyzed detoxification of hydroperoxides coupled to the productive use of disulfides, for instance, in the ER-associated process of oxidative protein folding, appears to emerge as a common theme. Nonetheless, in vitro and in vivo studies have demonstrated that individual peroxidases serve specific, nonoverlapping roles in ER physiology.
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61
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Meng Y, Qian Y, Gao L, Cai LB, Cui YG, Liu JY. Downregulated expression of peroxiredoxin 4 in granulosa cells from polycystic ovary syndrome. PLoS One 2013; 8:e76460. [PMID: 24098506 PMCID: PMC3789707 DOI: 10.1371/journal.pone.0076460] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 08/26/2013] [Indexed: 11/18/2022] Open
Abstract
Peroxiredoxin 4 (PRDX4), a member of Peroxiredoxin (PRDX) family, is a typical 2-Cys PRDX. PRDX4 monitors the oxidative burden within cellular compartment and reduces hydrogen peroxide and alkyl hydroperoxide related to oxidative stress and apoptosis. Antioxidant, like PRDX4, may promote follicle development and participate in the pathophysiology of PCOS. In our previous study, we found that PRDX4 was expressed in mice oocyte cumulus oophorus complex, and that PRDX4 could be associated with follicle development. In this study, we explored the expression of PRDX4 in human follicles and possible role of PRDX4 in PCOS pathophysiology. Our data showed that PRDX4 was mainly expressed in granulosa cells in human ovaries. When compared to control group, both PRDX4 mRNA level and protein level decreased in PCOS group. The lowered levels of PRDX4 may relate to oxidative stress in the pathophysiologic progress of PCOS. Furthermore, expression of PRDX4 in the granulosa cells of in vivo or in vitro matured follicles was higher than that in immatured follicles, which suggested that PRDX4 may have a close relationship with follicular development. Altogether, our findings may provide new clues of the pathophysiologic mechanism of PCOS and potential therapeutic strategy using antioxidant, like PRDX4.
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Affiliation(s)
- Yan Meng
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yi Qian
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Li Gao
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ling-Bo Cai
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yu-Gui Cui
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Jia-Yin Liu
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
- * E-mail:
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Tang WHW. Targeting endogenous antioxidants to prevent cardiovascular diseases. J Am Heart Assoc 2013; 1:e005215. [PMID: 23316330 PMCID: PMC3540674 DOI: 10.1161/jaha.112.005215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Radyuk SN, Klichko VI, Michalak K, Orr WC. The effect of peroxiredoxin 4 on fly physiology is a complex interplay of antioxidant and signaling functions. FASEB J 2012; 27:1426-38. [PMID: 23271054 DOI: 10.1096/fj.12-214106] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Peroxiredoxin 4 (Prx4) has been implicated in a wide variety of biological processes, including development, progression of cancer, inflammation, and antioxidant function. The purpose of this study was to provide further insight into its multiple roles at the whole-animal level, using Drosophila. Reduced expression of dPrx4 (up to 90%) resulted in greater sensitivity to oxidative stress, an elevated H₂O₂ flux, and increases in lipid peroxidation, but no effect on longevity. Overexpression at low levels (<2-fold) gave reduced levels of oxidative damage and tended to show an increase in longevity. Flies expressing dPrx4 globally at high levels (>5-fold) had a dramatically reduced life span (by 20-80%) and increased apoptosis. Analysis of these overexpressors revealed an aberrant redistribution of the dPrx4 protein from the endoplasmic reticulum (ER) to cytosol and hemolymph. In addition to the known proapoptotic effects of the cytosolic form of dPrx4, dPrx4 overexpression triggered an NF-κB-mediated proinflammatory response, similar to that observed in cells under ER stress or when microbially challenged. Finally, we provide the first evidence that dPrx4, on secretion into the hemolymph, elicits a JAK/STAT-mediated response. The effects on fly survival and homeostasis appear to represent a combination of differential effects dictated in large part by dPrx4 subcellular and tissue-specific localization.
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Affiliation(s)
- Svetlana N Radyuk
- Department of Biological Sciences, Southern Methodist University, Dallas, Texas, USA
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64
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Guo X, Yamada S, Tanimoto A, Ding Y, Wang KY, Shimajiri S, Murata Y, Kimura S, Tasaki T, Nabeshima A, Watanabe T, Kohno K, Sasaguri Y. Overexpression of peroxiredoxin 4 attenuates atherosclerosis in apolipoprotein E knockout mice. Antioxid Redox Signal 2012; 17:1362-75. [PMID: 22548251 PMCID: PMC3437049 DOI: 10.1089/ars.2012.4549] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIM A growing body of evidence has shown that increased formation of oxidized molecules and reactive oxygen species within the vasculature (i.e., the extracellular space) plays a crucial role in the initiation and progression of atherosclerosis and in the formation of unstable plaques. Peroxiredoxin 4 (PRDX4) is the only known secretory member of the antioxidant PRDX family. However, the relationship between PRDX4 and susceptibility to atherosclerosis has remained unclear. RESULTS To define the role of PRDX4 in hyperlipidemia-induced atherosclerosis, we generated hPRDX4 transgenic (Tg) and apolipoprotein E (apoE) knockout mice (hPRDX4(+/+)/apoE(-/-)). After feeding the mice a high-cholesterol diet, they showed fewer atheromatous plaques, less T-lymphocyte infiltration, lower levels of oxidative stress markers, less necrosis, a larger number of smooth muscle cells, and a larger amount of collagen, resulting in thickened fibrous cap formation and possible stable plaque phenotype as compared with apoE(-/-) mice. We also detected greater suppression of apoptosis and decreased Bax expression in hPRDX4(+/+)/apoE(-/-) mice than in apoE(-/-) mice. Bone marrow transplantation from hPRDX4(+/+) donors to apoE(-/-) mice confirmed the antiatherogenic aspects of PRDX4, revealing significantly suppressed atherosclerotic progression. INNOVATION In this study, we demonstrated for the first time that PRDX4 suppressed the development of atherosclerosis in apoE(-/-) mice fed a high-cholesterol diet. CONCLUSION These data indicate that PRDX4 is an antiatherogenic factor and, by suppressing oxidative damage and apoptosis, that it may protect against the formation of vulnerable (unstable) plaques.
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Affiliation(s)
- Xin Guo
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Abbasi A, Corpeleijn E, Postmus D, Gansevoort RT, de Jong PE, Gans ROB, Struck J, Schulte J, Hillege HL, van der Harst P, Peelen LM, Beulens JWJ, Stolk RP, Navis G, Bakker SJL. Peroxiredoxin 4, a novel circulating biomarker for oxidative stress and the risk of incident cardiovascular disease and all-cause mortality. J Am Heart Assoc 2012; 1:e002956. [PMID: 23316297 PMCID: PMC3541606 DOI: 10.1161/jaha.112.002956] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 09/04/2012] [Indexed: 01/05/2023]
Abstract
BACKGROUND Oxidative stress has been suggested to play a key role in the development of cardiovascular disease (CVD). The aim of our study was to investigate the associations of serum peroxiredoxin 4 (Prx4), a hydrogen peroxide-degrading peroxidase, with incident CVD and all-cause mortality. We subsequently examined the incremental value of Prx4 for the risk prediction of CVD compared with the Framingham risk score (FRS). METHODS AND RESULTS We performed Cox regression analyses in 8141 participants without history of CVD (aged 28 to 75 years; women 52.6%) from the Prevention of Renal and Vascular End-stage Disease (PREVEND) study in Groningen, The Netherlands. Serum Prx4 was measured by an immunoluminometric assay in baseline samples. Main outcomes were: (1) incident CVD events or CVD mortality and (2) all-cause mortality during a median follow-up of 10.5 years. In total, 708 participants (7.8%) developed CVD events or CVD mortality, and 517 participants (6.3%) died. Baseline serum Prx4 levels were significantly higher in participants with incident CVD events or CVD mortality and in those who died than in participants who remained free of outcomes (both P<0.001). In multivariable models with adjustment for Framingham risk factors, hazard ratios were 1.16 (95% CI 1.06 to 1.27, P<0.001) for incident CVD events or CVD mortality and 1.17 (95% CI 1.06 to 1.29, P=0.003) for all-cause mortality per doubling of Prx4 levels. After the addition of Prx4 to the FRS, the net reclassification improvement was 2.7% (P=0.01) using 10-year risk categories of CVD. CONCLUSIONS Elevated serum Prx4 levels are associated with a significantly higher risk of incident CVD events or CVD mortality and all-cause mortality after adjustment for clinical risk factors. The addition of Prx4 to the FRS marginally improved risk prediction of future CVD.
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Affiliation(s)
- Ali Abbasi
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
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66
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Jabbari A, Petukhova L, Cabral RM, Clynes R, Christiano AM. Genetic basis of alopecia areata: a roadmap for translational research. Dermatol Clin 2012; 31:109-17. [PMID: 23159180 DOI: 10.1016/j.det.2012.08.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Alopecia areata (AA) is a recurrent autoimmune type of hair loss that affects about 5.3 million people in the United States alone. Despite being the most prevalent autoimmune disease, the molecular and cellular mechanisms underlying this complex disease are still poorly understood, and rational treatments are lacking. Further efforts are necessary to clearly pinpoint the causes and molecular pathways leading to this disease and to find evidence-based treatments for AA. The authors focus on the central role of genetics for gaining insight into disease pathogenesis and setting the stage for the rational development of novel effective therapeutic approaches.
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Affiliation(s)
- Ali Jabbari
- Department of Dermatology, Russ Berrie Medical Science Pavilion, Columbia University, 1150 Saint Nicholas Avenue, New York, NY 10032, USA
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Abstract
The importance of K(ATP) channels in stimulus-secretion coupling of β-cells is well established, although they are not indispensable for the maintenance of glycaemic control. This review article depicts a new role for K(ATP) channels by showing that genetic or pharmacological ablation of these channels protects β-cells against oxidative stress. Increased production of oxidants is a crucial factor in the pathogenesis of type 2 diabetes mellitus (T2DM). T2DM develops when β-cells can no longer compensate for the high demand of insulin resulting from excess fuel intake. Instead β-cells start to secrete less insulin and β-cell mass is diminished by apoptosis. Both, reduction of insulin secretion and β-cell mass induced by oxidative stress, are prevented by deletion or inhibition of K(ATP) channels. These findings may open up new insights into the early treatment of T2DM.
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Affiliation(s)
- G Drews
- Department of Pharmacology, Institute of Pharmacy, University of Tübingen, Tübingen, Germany.
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68
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Oba T, Tatsunami R, Sato K, Takahashi K, Hao Z, Tampo Y. Methylglyoxal has deleterious effects on thioredoxin in human aortic endothelial cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2012; 34:117-126. [PMID: 22516056 DOI: 10.1016/j.etap.2012.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 03/12/2012] [Accepted: 03/12/2012] [Indexed: 05/31/2023]
Abstract
Methylglyoxal (MG), a precursor of advanced glycation end products (AGEs), is elevated in diabetic patient's plasma. Some studies have demonstrated that MG induces oxidative stress and apoptosis. Thioredoxin (Trx) is a cytoprotective protein with anti-oxidative and anti-apoptosis functions. In this study, we examined the effects of MG on Trx in human aortic endothelial cells (HAECs). MG increased oxidized-hydroethidine fluorescence intensity, suggesting intracellular accumulation of reactive oxygen species. Flow cytometric analyses with annexin-V/propidium iodide double staining revealed that cells incubated with MG displayed features characteristic of apoptosis. The condensation of chromatin, the release of cytochrome c into cytosol, and the collapse of mitochondrial membrane potential by MG were observed. The exposure to MG decreased Trx protein levels through transcription regulation. MG induced the oxidative damage of peroxiredoxin, a Trx-dependent peroxidase. These results suggest that MG has deleterious effects on Trx in HAECs, which may be contribute to oxidative stress and apoptosis.
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Affiliation(s)
- Tatsuya Oba
- Hokkaido Pharmaceutical University School of Pharmacy, 7-1 Katsuraoka-cho, Otaru, Hokkaido 047-0264, Japan
| | - Ryosuke Tatsunami
- Hokkaido Pharmaceutical University School of Pharmacy, 7-1 Katsuraoka-cho, Otaru, Hokkaido 047-0264, Japan
| | - Keisuke Sato
- Hokkaido Pharmaceutical University School of Pharmacy, 7-1 Katsuraoka-cho, Otaru, Hokkaido 047-0264, Japan
| | - Kyohei Takahashi
- Hokkaido Pharmaceutical University School of Pharmacy, 7-1 Katsuraoka-cho, Otaru, Hokkaido 047-0264, Japan
| | - Zhihui Hao
- Hokkaido Pharmaceutical University School of Pharmacy, 7-1 Katsuraoka-cho, Otaru, Hokkaido 047-0264, Japan
| | - Yoshiko Tampo
- Hokkaido Pharmaceutical University School of Pharmacy, 7-1 Katsuraoka-cho, Otaru, Hokkaido 047-0264, Japan.
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69
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Papa FR. Endoplasmic reticulum stress, pancreatic β-cell degeneration, and diabetes. Cold Spring Harb Perspect Med 2012; 2:a007666. [PMID: 22951443 DOI: 10.1101/cshperspect.a007666] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Overwhelming of protein folding in the endoplasmic reticulum (ER)--referred to as "ER stress"--activates a set of intracellular signaling pathways termed the unfolded protein response (UPR). Beneficial outputs of the UPR promote adaptation in cells experiencing manageably low levels of ER stress. However, if ER stress reaches critically high levels, the UPR uses destructive outputs to trigger programmed cell death. Genetic mutations in various UPR components cause inherited syndromes of diabetes mellitus in both rodents and humans, implicating the UPR in the proper functioning and survival of pancreatic islet β cells. Markers of chronically elevated ER stress, terminal UPR signaling, and apoptosis are evident in β cells in these rare disorders; these markers are similarly present in islets of human patients with common forms of diabetes. These findings promise to enhance our molecular understanding of human diabetes significantly and may lead to new and effective therapies.
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Affiliation(s)
- Feroz R Papa
- Department of Medicine, The Diabetes Center, The Lung Biology Center, and The California Institute for Quantitative Biosciences, University of California, San Francisco, San Francisco, CA 94143-2520, USA.
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Hamilton RT, Walsh ME, Van Remmen H. Mouse Models of Oxidative Stress Indicate a Role for Modulating Healthy Aging. ACTA ACUST UNITED AC 2012; Suppl 4. [PMID: 25300955 DOI: 10.4172/2161-0681.s4-005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Aging is a complex process that affects every major system at the molecular, cellular and organ levels. Although the exact cause of aging is unknown, there is significant evidence that oxidative stress plays a major role in the aging process. The basis of the oxidative stress hypothesis is that aging occurs as a result of an imbalance between oxidants and antioxidants, which leads to the accrual of damaged proteins, lipids and DNA macromolecules with age. Age-dependent increases in protein oxidation and aggregates, lipofuscin, and DNA mutations contribute to age-related pathologies. Many transgenic/knockout mouse models over expressing or deficient in key antioxidant enzymes have been generated to examine the effect of oxidative stress on aging and age-related diseases. Based on currently reported lifespan studies using mice with altered antioxidant defense, there is little evidence that oxidative stress plays a role in determining lifespan. However, mice deficient in antioxidant enzymes are often more susceptible to age-related disease while mice overexpressing antioxidant enzymes often have an increase in the amount of time spent without disease, i.e., healthspan. Thus, by understanding the mechanisms that affect healthy aging, we may discover potential therapeutic targets to extend human healthspan.
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Affiliation(s)
- Ryan T Hamilton
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245-3207, USA ; Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245-3207, USA
| | - Michael E Walsh
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245-3207, USA
| | - Holly Van Remmen
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245-3207, USA ; Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245-3207, USA ; GRECC, South Texas Veterans Health Care System, San Antonio, TX, USA
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Styskal J, Van Remmen H, Richardson A, Salmon AB. Oxidative stress and diabetes: what can we learn about insulin resistance from antioxidant mutant mouse models? Free Radic Biol Med 2012; 52:46-58. [PMID: 22056908 PMCID: PMC3249484 DOI: 10.1016/j.freeradbiomed.2011.10.441] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 10/12/2011] [Accepted: 10/13/2011] [Indexed: 01/18/2023]
Abstract
The development of metabolic dysfunctions like diabetes and insulin resistance in mammals is regulated by a myriad of factors. Oxidative stress seems to play a central role in this process as recent evidence shows a general increase in oxidative damage and a decrease in oxidative defense associated with several metabolic diseases. These changes in oxidative stress can be directly correlated with increased fat accumulation, obesity, and consumption of high-calorie/high-fat diets. Modulation of oxidant protection through either genetic mutation or treatment with antioxidants can significantly alter oxidative stress resistance and accumulation of oxidative damage in laboratory rodents. Antioxidant mutant mice have previously been utilized to examine the role of oxidative stress in other disease models, but have been relatively unexplored as models to study the regulation of glucose metabolism. In this review, we will discuss the evidence for oxidative stress as a primary mechanism linking obesity and metabolic disorders and whether alteration of antioxidant status in laboratory rodents can significantly alter the development of insulin resistance or diabetes.
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Affiliation(s)
- Jennalynn Styskal
- The Sam and Ann Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78245-3207, USA
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The redox-sensitive cation channel TRPM2 modulates phagocyte ROS production and inflammation. Nat Immunol 2011; 13:29-34. [PMID: 22101731 PMCID: PMC3242890 DOI: 10.1038/ni.2171] [Citation(s) in RCA: 169] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Accepted: 10/24/2011] [Indexed: 01/25/2023]
Abstract
The NADPH oxidase activity of phagocytes and its generation of reactive oxygen species (ROS) is critical for host-defense, but ROS overproduction can also lead to inflammation and tissue injury. Here we report that TRPM2, a non-selective and redox-sensitive cation channel, inhibits ROS production in phagocytic cells and prevents endotoxin-induced lung inflammation in mice. TRPM2-deficient mice challenged with endotoxin (lipopolysaccharide) showed an increased inflammatory signature and decreased survival compared to controls. TRPM2 functions by dampening NADPH oxidase-mediated ROS production through depolarization of the plasma membrane in phagocytes. Since ROS also activates TRPM2, our findings establish a negative feedback mechanism inactivating ROS production through inhibition of the membrane potential-sensitive NADPH oxidase.
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73
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Yamada S, Ding Y, Tanimoto A, Wang KY, Guo X, Li Z, Tasaki T, Nabesima A, Murata Y, Shimajiri S, Kohno K, Ichijo H, Sasaguri Y. Apoptosis Signal–Regulating Kinase 1 Deficiency Accelerates Hyperlipidemia-Induced Atheromatous Plaques via Suppression of Macrophage Apoptosis. Arterioscler Thromb Vasc Biol 2011; 31:1555-64. [PMID: 21527753 DOI: 10.1161/atvbaha.111.227140] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sohsuke Yamada
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Yan Ding
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Akihide Tanimoto
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Ke-Yong Wang
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Xin Guo
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Zhi Li
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Takashi Tasaki
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Atsunori Nabesima
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Yoshitaka Murata
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Shohei Shimajiri
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Kimitoshi Kohno
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Hidenori Ichijo
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
| | - Yasuyuki Sasaguri
- From the Departments of Pathology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Cell Biology (S.Y., Y.D., A.T., K.-Y.W., X.G., Z.L., T.T., A.N., S.S., Y.S.) and Molecular Biology (K.K.), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular and Cellular Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.T.); Kyurin Omtest Laboratory Department, Kyurin Corp, Kitakyushu,
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PETUKHOVA LYNN, CABRAL RITAM, MACKAY-WIGGAN JULIAN, CLYNES RAPHAEL, CHRISTIANO ANGELAM. The genetics of alopecia areata: What's new and how will it help our patients? Dermatol Ther 2011; 24:326-36. [DOI: 10.1111/j.1529-8019.2011.01411.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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75
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Coughlan MT, Forbes JM. Temporal increases in urinary carboxymethyllysine correlate with albuminuria development in diabetes. Am J Nephrol 2011; 34:9-17. [PMID: 21654162 DOI: 10.1159/000328581] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 02/12/2011] [Indexed: 01/09/2023]
Abstract
BACKGROUND/AIMS Advanced glycation end products (AGEs) mediate progressive tissue damage in diabetic nephropathy; however, their utility as a noninvasive reliable biomarker of progressive diabetic nephropathy remains to be determined. In this study, we investigated the temporal accumulation of the AGE carboxymethyllysine (CML) at various sites in a model of experimental diabetic nephropathy. METHODS Diabetic rats were followed for 1, 4, 8, 16 and 32 weeks. Glomerular filtration rate and urinary albumin excretion were measured. CML was determined in the plasma, urine, renal cortical mitochondria and cytosol by an in-house ELISA. Gene expression of AGE receptors were quantified by real-time PCR and urinary excretion of 8-hydroxy-2'-deoxyguanosine (8-OHdG) was determined by EIA. RESULTS Four weeks after diabetes induction, urinary CML excretion was increased, which preceded the excretion of urinary albumin and continued to rise progressively until 32 weeks. Circulating, mitochondrial and cytosolic CML content and urinary excretion of 8-OHdG were increased 4 weeks after diabetes induction, but did not increase further with diabetes duration. Renal gene expression of AGE receptors was transiently upregulated at 1 week of diabetes, but this was not a sustained phenomenon. CONCLUSIONS The most informative marker of progressive renal damage linked to the AGE pathway in experimental diabetic nephropathy is urinary excretion of CML, which now warrants clinical investigation as a potential noninvasive sensitive marker of progressive diabetic nephropathy.
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Affiliation(s)
- Melinda T Coughlan
- Glycation and Diabetes Complications Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, VIC, Australia.
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