51
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Kondratyev MS, Zakharova EV. Virtual Screening of Thiol Peroxiredoxin 6 Reducers. Biophysics (Nagoya-shi) 2018. [DOI: 10.1134/s0006350918050123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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52
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Lee E, Lee HS. Peroxidase expression is decreased by palmitate in cultured podocytes but increased in podocytes of advanced diabetic nephropathy. J Cell Physiol 2018; 233:9060-9069. [PMID: 30132841 PMCID: PMC6686159 DOI: 10.1002/jcp.26875] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/23/2018] [Indexed: 01/10/2023]
Abstract
High levels of serum free fatty acids (FFAs) are associated with lipotoxicity and type 2 diabetes. Palmitic acid (PA) is the predominant circulating saturated FFA. PA induces mitochondrial superoxide and hydrogen peroxide (H2O
2) generation in cultured podocytes. To elucidate the role of PA in antioxidant defense systems in diabetic nephropathy (DN), cultured podocytes were exposed to 250 μM PA for 1–24 hr, and protein expressions of catalase, peroxiredoxins (Prxs), and glutathione peroxidase (GPx) were examined by western blot analysis. PA induced an early transient increase in the Prx1, Prx2, and GPx1 levels in podocytes, but not catalase. Long‐term exposure of PA to podocytes significantly decreased the protein levels of Prx1, Prx2, GPx1, and catalase. Coincubation of PA‐treated cells with oleic acid, however, restored the expression of these proteins. In advanced human diabetic glomeruli, H2O2 generation was elevated as shown by increased fluorescence of dichlorofluorescein. Strong immunostaining for Prx1, Prx2, GPx1, and catalase was observed in the podocytes of advanced human DN, wherein transforming growth factor‐β1 staining was also positive. These results suggest that podocytes are susceptible to PA‐induced oxidative damage with impaired peroxidase activity and that peroxidases have futile antioxidant effects in the podocytes in the late stages of DN. Given this, PA‐induced podocyte injury via inadequate peroxidase response to H2O2 appears to play an important role in the pathogenesis of DN.
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Affiliation(s)
- Eugene Lee
- Renal Pathology Lab, Hankook Kidney and Diabetes Institute, Seoul, Korea
| | - Hyun Soon Lee
- Renal Pathology Lab, Hankook Kidney and Diabetes Institute, Seoul, Korea
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53
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Kim MH, Park SJ, Kim JH, Seong JB, Kim KM, Woo HA, Lee DS. Peroxiredoxin 5 regulates adipogenesis-attenuating oxidative stress in obese mouse models induced by a high-fat diet. Free Radic Biol Med 2018; 123:27-38. [PMID: 29777756 DOI: 10.1016/j.freeradbiomed.2018.05.061] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/09/2018] [Accepted: 05/13/2018] [Indexed: 12/12/2022]
Abstract
Elevated levels of reactive oxygen species (ROS) are a hallmark of obesity. Peroxiredoxin 5 (Prx5), which is a cysteine-dependent peroxidase enzyme, has an intensive ROS scavenging activity because it is located in the cytosol and mitochondria. Therefore, we focused on the role of Prx5 in regulating mitochondrial ROS and adipogenesis. We demonstrated that Prx5 expression was upregulated during adipogenesis and Prx5 overexpression suppressed adipogenesis by regulating cytosolic and mitochondrial ROS generation. Silencing Prx5 promoted preadipocytes to differentiate into adipocytes accumulating lipids by activating adipogenic protein expression. Prx5-deletion mice fed on a high-fat diet (HFD) exhibited significant increase in body weight, enormous fat pads, and adipocyte hypertrophy in comparison to wild type mice. Prx5 deletion also remarkably induced adipogenesis-related gene expression in white adipose tissue. These phenotypic changes in Prx5-deletion mice were accompanied with lipid metabolic disorders, such as excessive lipid accumulation in the liver, severe hepatic steatosis, and high levels of triglyceride in the serum. These results demonstrated that Prx5 deletion increased the susceptibility to HFD-induced obesity and several of its associated metabolic disorders. In conclusion, we suggest that Prx5 inhibits adipogenesis by modulating ROS generation and adipogenic gene expression, implying that Prx5 may serve as a potential strategy to prevent and treat obesity.
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Affiliation(s)
- Mi Hye Kim
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sun-Ji Park
- School of Life science, 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 science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; Division of Endocrinology, Internal Medicine, University of California, Davis, CA, USA
| | - Jung Bae Seong
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kyung-Min Kim
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hyun Ae Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea.
| | - Dong-Seok Lee
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea.
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54
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Ramesh A, Varghese S, Jayakumar ND, Malaiappan S. Comparative estimation of sulfiredoxin levels between chronic periodontitis and healthy patients - A case-control study. J Periodontol 2018; 89:1241-1248. [PMID: 30044495 DOI: 10.1002/jper.17-0445] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 02/07/2018] [Accepted: 02/17/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND Growing evidence suggests that oxidative stress forms a key component in the etiopathogenesis of periodontitis. Studies have shown potential antioxidants responsible for combating the pro-oxidants which stress the periodontium. But, peroxiredoxin-sulfiredoxin system is the least explored in periodontal disease. METHODS A case-control study was conducted on 30 participants who fulfilled the inclusion criteria from the Department of Periodontics, Saveetha Dental College and Hospital, Chennai, India. The patients were divided into two groups: 1) Group A- healthy controls (n = 18), 2) Group B- patients with generalized chronic periodontitis (n = 17). Following clinical examination, gingival tissue samples were procured from both the groups and subjected to protein quantification by Lowry method. The samples with adequate protein concentration (n = 30) from the two groups were further analyzed by enzyme-linked immunosorbent assay for estimation of sulfiredoxin levels. RESULTS Sulfiredoxin levels were significantly higher in the gingival tissues of chronic periodontitis patients (171.20 ± 16.97 ng/mL) than in healthy controls (131.20 ± 22.87) with P < 0.001. Also, the levels of sulfiredoxin in gingival tissue of periodontitis patients positively correlated with site-specific probing depth (r = 0.67; P = 0.007) and clinical attachment level (r = 0.55; P = 0.035). CONCLUSIONS The present study was a novel attempt to estimate the levels of sulfiredoxin which was significantly elevated in the diseased sites of patients with chronic periodontitis. Future studies are required to probe the role of sulfiredoxin in the etiopathogenesis of periodontal disease.
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Affiliation(s)
- Asha Ramesh
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha University, No 162, Poonamallee High Road, Vellappanchavadi, Chennai, 600077
| | - Sheeja Varghese
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha University, No 162, Poonamallee High Road, Vellappanchavadi, Chennai, 600077
| | - Nadathur D Jayakumar
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha University, No 162, Poonamallee High Road, Vellappanchavadi, Chennai, 600077
| | - Sankari Malaiappan
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha University, No 162, Poonamallee High Road, Vellappanchavadi, Chennai, 600077
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55
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O'Flaherty C, Matsushita-Fournier D. Reactive oxygen species and protein modifications in spermatozoa. Biol Reprod 2018; 97:577-585. [PMID: 29025014 DOI: 10.1093/biolre/iox104] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 09/11/2017] [Indexed: 02/07/2023] Open
Abstract
Cellular response to reactive oxygen species (ROS) includes both reversible redox signaling and irreversible nonenzymatic reactions which depend on the nature and concentration of the ROS involved. Changes in thiol/disulfide pairs affect protein conformation, enzymatic activity, ligand binding, and protein-protein interactions. During spermatogenesis and epididymal maturation, there are ROS-dependent modifications of the sperm chromatin and flagellar proteins.The spermatozoon is regulated by redox mechanisms to acquire fertilizing ability. For this purpose, controlled amounts of ROS are necessary to assure sperm activation (motility and capacitation). Modifications of the thiol groups redox status of sperm proteins are needed for spermatozoon to achieve fertilizing ability. However, when ROS are produced at high concentrations, the established oxidative stress promotes pathological changes affecting sperm function and leading to infertility. Sperm proteins are sensitive to high levels of ROS and suffer modifications that impact on motility, capacitation, and the ability of the spermatozoon to recognize and bind to the zona pellucida and damage of sperm DNA. Thiol oxidation, tyrosine nitration, and S-glutathionylation are highlighted in this review as significant redox-dependent protein modifications associated with impairment of sperm function and alteration of paternal genome leading to infertility. Peroxiredoxins, the primary antioxidant protection in spermatozoa, are affected by most of the protein modifications described in this review. They play a significant role in both physiological and pathological processes in mammalian spermatozoa.
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Affiliation(s)
- Cristian O'Flaherty
- Department of Surgery (Urology Division), McGill University, Montréal, Québec, Canada.,Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montréal, Québec, Canada.,The Research Institute, McGill University Health Centre, Montréal, Québec, Canada
| | - David Matsushita-Fournier
- Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montréal, Québec, Canada.,The Research Institute, McGill University Health Centre, Montréal, Québec, Canada
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56
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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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57
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Detection of peroxiredoxin-like protein in Antarctic sea urchin (Sterechinus neumayeri) under heat stress and induced with pathogen-associated molecular pattern from Vibrio anguillarum. Polar Biol 2018. [DOI: 10.1007/s00300-018-2346-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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58
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Lee DG, Kam MK, Kim KM, Kim HS, Kwon OS, Lee HS, Lee DS. Peroxiredoxin 5 prevents iron overload-induced neuronal death by inhibiting mitochondrial fragmentation and endoplasmic reticulum stress in mouse hippocampal HT-22 cells. Int J Biochem Cell Biol 2018; 102:10-19. [PMID: 29906559 DOI: 10.1016/j.biocel.2018.06.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/01/2018] [Accepted: 06/11/2018] [Indexed: 01/18/2023]
Abstract
Iron is an essential element for neuronal as well as cellular functions. However, Iron overload has been known to cause neuronal toxicity through mitochondrial fission, dysregulation of Ca2+, endoplasmic reticulum (ER) stress, and reactive oxygen species (ROS) production. Nevertheless, the precise mechanisms of iron-induced oxidative stress and mitochondria- and ER-related iron toxicity in neuronal cells are not fully understood. In this study, we demonstrated that iron overload induces ROS production earlier in the ER than in the mitochondria, and peroxiredoxin 5 (Prx5), which is a kind of antioxidant induced by iron overload, prevents iron overload-induced mitochondrial fragmentation mediated by contact with ER and translocation of Drp1, by inhibiting ROS production and calcium/calcineurin pathway in HT-22 mouse hippocampal neuronal cells. Moreover, Prx5 also prevented iron overload-induced ER-stress and cleavage of caspase-3, which consequently attenuated neuronal cell death. Therefore, we suggested that iron overload induces oxidative stress in the ER earlier than in the mitochondria, thereby increasing ER stress and calcium levels, and consequently causing mitochondrial fragmentation and neuronal cell death. So we thought that this study is essential for understanding iron toxicity in neurons, and Prx5 may serve as a new therapeutic target to prevent iron overload-induced diseases and neurodegenerative disorders.
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Affiliation(s)
- Dong Gil Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Min Kyoung Kam
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Kyung Min Kim
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Han Seop Kim
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Oh-Shin Kwon
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Hyun-Shik Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea.
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59
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Kamariah N, Eisenhaber B, Eisenhaber F, Grüber G. Active site C P-loop dynamics modulate substrate binding, catalysis, oligomerization, stability, over-oxidation and recycling of 2-Cys Peroxiredoxins. Free Radic Biol Med 2018; 118:59-70. [PMID: 29474868 DOI: 10.1016/j.freeradbiomed.2018.02.027] [Citation(s) in RCA: 6] [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: 09/26/2017] [Revised: 02/12/2018] [Accepted: 02/17/2018] [Indexed: 01/20/2023]
Abstract
Peroxiredoxins (Prxs) catalyse the rapid reduction of hydrogen peroxide, organic hydroperoxide and peroxynitrite, using a fully conserved peroxidatic cysteine (CP) located in a conserved sequence Pxxx(T/S)xxCP motif known as CP-loop. In addition, Prxs are involved in cellular signaling pathways and regulate several redox-dependent process related disease. The effective catalysis of Prxs is associated with alterations in the CP-loop between reduced, Fully Folded (FF), and oxidized, Locally Unfolded (LU) conformations, which are linked to dramatic changes in the oligomeric structure. Despite many studies, little is known about the precise structural and dynamic roles of the CP-loop on Prxs functions. Herein, the comprehensive biochemical and biophysical studies on Escherichia coli alkyl hydroperoxide reductase subunit C (EcAhpC) and the CP-loop mutants, EcAhpC-F45A and EcAhpC-F45P reveal that the reduced form of the CP-loop adopts conformational dynamics, which is essential for effective peroxide reduction. Furthermore, the point mutants alter the structure and dynamics of the reduced form of the CP-loop and, thereby, affect substrate binding, catalysis, oligomerization, stability and overoxidiation. In the oxidized form, due to restricted CP-loop dynamics, the EcAhpC-F45P mutant favours a decamer formation, which enhances the effective recycling by physiological reductases compared to wild-type EcAhpC. In addition, the study reveals that residue F45 increases the specificity of Prxs-reductase interactions. Based on these studies, we propose an evolution of the CP-loop with confined sequence conservation within Prxs subfamilies that might optimize the functional adaptation of Prxs into various physiological roles.
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Affiliation(s)
- Neelagandan Kamariah
- Bioinformatics Institute, Agency for Science, Technology and Research (A⁎STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore
| | - Birgit Eisenhaber
- Bioinformatics Institute, Agency for Science, Technology and Research (A⁎STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore
| | - Frank Eisenhaber
- Bioinformatics Institute, Agency for Science, Technology and Research (A⁎STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore; School of Computer Engineering, Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore 637553, Republic of Singapore
| | - Gerhard Grüber
- Bioinformatics Institute, Agency for Science, Technology and Research (A⁎STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore; School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Republic of Singapore.
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60
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Kim JH, Park SJ, Chae U, Seong J, Lee HS, Lee SR, Lee S, Lee DS. Peroxiredoxin 2 mediates insulin sensitivity of skeletal muscles through regulation of protein tyrosine phosphatase oxidation. Int J Biochem Cell Biol 2018; 99:80-90. [PMID: 29605633 DOI: 10.1016/j.biocel.2018.03.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/07/2018] [Accepted: 03/27/2018] [Indexed: 01/14/2023]
Abstract
Insulin signaling is essential for regulating glucose homeostasis. Numerous studies have demonstrated that reactive oxygen species (ROS) affect insulin signaling, and low ROS levels can act as a signal to regulate cellular function. Peroxiredoxins (Prxs) are highly abundant and widely expressed antioxidant enzymes. However, it is unclear whether antioxidant enzymes, such as Prx2, mediate insulin signaling. The aim of our study was to investigate the influence of Prx2 deficiency on insulin signaling. Our western blot results showed that Prx2 deficiency enhanced insulin signaling and increased oxidation of protein tyrosine phosphatase 1B (PTP1B) and phosphatase and tensin homologue (PTEN) in mouse embryonic fibroblasts (MEFs) treated with insulin. In addition, we assessed ROS levels with a Cytosol-HyPer H2O2 sensor. As a result, increased ROS levels and Akt activation were decreased by N-acetyl-cysteine (Nac), which acted as an antioxidant in Prx2-deficient MEFs. Body weight measurements and glucose tolerance test (GTT) revealed significant body weight reduction and increase in glucose clearance in Prx2-/- mice fed a high-fat diet. Interestingly, glucose transporter type 4 (GLUT4) was significantly higher in Prx2-/- mice than in wild-type mice according to western blotting results. Western blotting also revealed that Akt phosphorylation was higher in Prx2-/- MEFs and muscle tissue than in wild-type. Together, our findings indicate that increased ROS due to Prx2 deficiency promotes insulin sensitivity and glucose clearance in skeletal muscles by increasing protein tyrosine phosphatase (PTPs) oxidation. These results provide novel insights into the fundamental mechanisms of insulin signaling induced by Prx2 deficiency and suggest that ROS-based therapeutic strategies can be used to suppress insulin resistance.
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Affiliation(s)
- Jung-Hak Kim
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea; Division of Endocrinology, Internal Medicine, University of California, Davis, CA, 95616, USA
| | - Sun-Ji Park
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea; Renal Division, School of Medicine, Washington University in St. Louis, MO, 63130, USA
| | - Unbin Chae
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Joongbae Seong
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hyun-Shik Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungcheongbuk-do, 34141, Republic of Korea
| | - Seunghoon Lee
- Animal Biotechnology Division, National Institute of Animal Science, Jeollabuk-do, 55365, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea.
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61
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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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62
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Silencing of peroxiredoxin II by promoter methylation is necessary for the survival and migration of gastric cancer cells. Exp Mol Med 2018; 50:e443. [PMID: 29422545 PMCID: PMC5903821 DOI: 10.1038/emm.2017.267] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 09/04/2017] [Accepted: 09/13/2017] [Indexed: 12/16/2022] Open
Abstract
Peroxiredoxin (Prx), a family of ubiquitous thiol peroxidases, functions as a redox signaling regulator that controls cellular H2O2 in mammalian cells and has recently received attention for being overexpressed in various cancer types. In this study, we show that Prx type II (PrxII) is rather silenced in gastric cancer cells. PrxII expression is severely downregulated in 9 out of the 28 gastric cancer cell lines. Strikingly, PrxII expression is completely lost in three cell lines, MKN28, MKN74 and SNU484. Loss of PrxII expression is due to DNA methyltransferase 1-dependent methylation at the promoter region of the PrxII gene. Restoration of PrxII expression using a retroviral system markedly reduces the colony-forming ability and migratory activity of both MKN28 and SNU484 cells by inhibiting Src kinase. Mechanistically, PrxII peroxidase activity is essential for regulating gastric cancer cell migration. Bioinformatics analysis from The Cancer Genome Atlas stomach cancer data (STAD) revealed significantly low PrxII expression in gastric cancer patients and a negative correlation between PrxII expression and methylation levels. More importantly, low PrxII expression also strongly correlates with poor survival in cancer patients. Thus our study suggests that PrxII may be the first thiol peroxidase that simultaneously regulates both survival and metastasis in gastric cancer cells with high clinical relevance.
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63
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Yamada S, Guo X. Peroxiredoxin 4 (PRDX4): Its critical in vivo
roles in animal models of metabolic syndrome ranging from atherosclerosis to nonalcoholic fatty liver disease. Pathol Int 2018; 68:91-101. [PMID: 29341349 DOI: 10.1111/pin.12634] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 12/13/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Sohsuke Yamada
- Department of Pathology and Laboratory Medicine; Kanazawa Medical University; Ishikawa Japan
| | - Xin Guo
- Department of Pathology and Laboratory Medicine; Kanazawa Medical University; Ishikawa Japan
- Laboratory of Pathology; Hebei Cancer Institute; The Fourth Hospital of Hebei Medical University; Hebei China
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64
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Identification and characterization of six peroxiredoxin transcripts from mud crab Scylla paramamosain: The first evidence of peroxiredoxin gene family in crustacean and their expression profiles under biotic and abiotic stresses. Mol Immunol 2017; 93:223-235. [PMID: 29220745 DOI: 10.1016/j.molimm.2017.11.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/23/2017] [Accepted: 11/28/2017] [Indexed: 01/18/2023]
Abstract
The peroxiredoxins (Prxs) define a novel and evolutionarily conserved superfamily of peroxidases able to protect cells from oxidative damage by catalyzing the reduction of a wide range of cellular peroxides. Prxs have been identified in prokaryotes as well as in eukaryotes, however, the composition and number of Prxs family members vary in different species. In this study, six Prxs were firstly identified from the mud crab Scylla paramamosain by RT-PCR and RACE methods. Six SpPrxs can be subdivided into three classes: (a) three typical 2-Cys enzymes denominated as Prx1/2, 3, 4, (b) two atypical 2-Cys enzymes known as Prx5-1 and Prx5-2, and (c) a 1-Cys isoform named Prx6. The evolutionarily conserved signatures of peroxiredoxin catalytic center were identified in all six SpPrxs. Phylogenetic analysis revealed that SpPrx3, SpPrx4, SpPrx5s and SpPrx6 were clearly classified into Prx3-6 subclasses, respectively. Although SpPrx1/2 could not be grouped into any known Prx subclasses, SpPrx1/2 clustered together with other arthropods Prx1 or unclassified Prx and could be classified into the typical 2-Cys class. The comparative and evolutionary analysis of the Prx gene family in invertebrates and vertebrates were also conducted for the first time. Tissue-specific expression analysis revealed that these six SpPrxs were expressed in different transcription patterns while the highest expression levels were almost all in the hepatopancreas. Quantitative RT-PCR analysis exhibited that the gene expression profiles of six SpPrxs were distinct when crabs suffered biotic and abiotic stresses including the exposures of Vibrio alginolyticus, poly (I:C), cadmium and hypoosmotic salinity, suggesting that the SpPrxs might play different roles in response to various stresses. The recombinant proteins including the SpPrx1/2, SpPrx4, SpPrx5-1 and SpPrx6 were purified and the peroxidase activity assays indicated that all these proteins can reduce H2O2 in a typical DTT-dependent manner. To our knowledge, this is the first study about the comprehensive characterization of Prx gene family in Scylla paramamosain and even in crustaceans. These results would broaden the current knowledge of the whole Prx family as well as be helpful to understand and clarify the evolutionary pattern of Prx family in invertebrate and vertebrate taxa.
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Peroxiredoxin I expression in epithelial cells of buccal mucosa from patients exposed to panoramic X-rays: influence of the age. Clin Oral Investig 2017; 22:1587-1592. [DOI: 10.1007/s00784-017-2254-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Park J, Kim B, Chae U, Lee DG, Kam MK, Lee SR, Lee S, Lee HS, Park JW, Lee DS. Peroxiredoxin 5 Decreases Beta-Amyloid-Mediated Cyclin-Dependent Kinase 5 Activation Through Regulation of Ca 2+-Mediated Calpain Activation. Antioxid Redox Signal 2017; 27:715-726. [PMID: 28358580 DOI: 10.1089/ars.2016.6810] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
AIMS Aberrant Cdk5 (cyclin-dependent kinase 5) and oxidative stress are crucial components of diverse neurodegenerative disorders, including Alzheimer's disease (AD). We previously reported that a change in peroxiredoxin (Prx) expression is associated with protection from neuronal death. The aim of the current study was to analyze the role of Prx in regulating Cdk5 activation in AD. RESULTS We found that of the six Prx subtypes, Prx5 was increased the most in cellular (N2a-APPswe cells) model of AD. Prx5 in the brain of APP (amyloid precursor protein) transgenic mouse (Tg2576) was more increased than a nontransgenic mouse. We evaluated Prx5 function by using overexpression (Prx5-WT), a mutation in the catalytic residue (Prx5-C48S), and knockdown. Increased neuronal death and Cdk5 activation by amyloid beta oligomer (AβO) were rescued by Prx5-WT expression, but not by Prx5-C48S or Prx5 knockdown. Prx5 plays a role in Cdk5 regulation by inhibiting the conversion of p35 to p25, which is increased by AβO accumulation. Prx5 is also upregulated in both the cytosol and mitochondria and it protects cells from AβO-mediated oxidative stress by eliminating intracellular and mitochondrial reactive oxygen species. Moreover, Prx5 regulates Ca2+ and Ca2+-mediated calpain activation, which are key regulators of p35 cleavage to p25. Innovation and Conclusion: Our study represents the first demonstration that Prx5 induction is a key factor in the suppression of Cdk5-related neuronal death in AD and we show that it functions via regulation of Ca2+-mediated calpain activation. Antioxid. Redox Signal. 27, 715-726.
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Affiliation(s)
- Junghyung Park
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Bokyung Kim
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Unbin Chae
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Dong Gil Lee
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Min Kyoung Kam
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Sang-Rae Lee
- 3 National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB) , Cheongju, Republic of Korea
| | - Seunghoon Lee
- 4 Animal Biotechnology Division, National Institute of Animal Science , Jeonju, Republic of Korea
| | - Hyun-Shik Lee
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Jeen-Woo Park
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Dong-Seok Lee
- 1 School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University , Daegu, Republic of Korea.,2 College of Natural Sciences, Kyungpook National University , Daegu, Republic of Korea
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Tu DD, Jiang M, Gu WB, Zhou YL, Zhu QH, Zhou ZK, Chen YY, Shu MA. Identification and characterization of atypical 2-cysteine peroxiredoxins from mud crab Scylla paramamosain: The first evidence of two peroxiredoxin 5 genes in non-primate species and their involvement in immune defense against pathogen infection. FISH & SHELLFISH IMMUNOLOGY 2017; 69:119-127. [PMID: 28743622 DOI: 10.1016/j.fsi.2017.07.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/02/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
Peroxiredoxin 5 (Prx5) belongs to a novel family of evolutionarily conserved antioxidant proteins that protect cells against various oxidative stresses. Generally, no more than one Prx5 transcript had been reported in non-primate species. In this study, two Prx5 genes (coined as SpPrx5-1 and SpPrx5-2) were firstly isolated from the mud crab, Scylla paramamosain, through RT-PCR and RACE methods. The open reading frame of SpPrx5-1 and SpPrx5-2 were 561 bp and 429 bp in length, encoding 186 and 142 amino acids polypeptide, respectively. Both the conserved signatures of peroxiredoxin catalytic center and Prx5-specific domain were identified in SpPrx5-1 and SpPrx5-2. Phylogenetic analysis indicated that both SpPrx5 clustered together with other animal Prx proteins and were classified into Prx5 subfamily. Tissue-specific expression analysis revealed that both SpPrx5-1 and SpPrx5-2 were ubiquitously expressed, highest in hepatopancreas, and showed remarkably similar transcription patterns. Quantitative RT-PCR analysis exhibited that both SpPrx5 genes changed dramatically in hepatopancreas, although showing different expression profiles, after virus-analog poly (I:C) or Vibrio alginolyticus challenge. The expression levels of both SpPrx5s were significantly enhanced in hepatopancreas after poly (I:C) stimulation, while SpPrx5-2 exhibited a more prompt response than SpPrx5-1. Nevertheless, the expression levels of both SpPrx5s were significantly reduced in hepatopancreas after Vibrio alginolyticus challenge in which SpPrx5-1 showed a more prompt response than SpPrx5-2. These results suggested the involvement of SpPrx5s in responses against viral and bacterial infections and further highlighted their functional importance in the immune system of Scylla paramamosain.
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Affiliation(s)
- Dan-Dan Tu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Mei Jiang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wen-Bin Gu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi-Lian Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qi-Hui Zhu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhong-Kai Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yu-Yin Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Miao-An Shu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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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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Brod JM, Demasi APD, Montalli VA, Teixeira LN, Furuse C, Aguiar MC, Soares AB, Sperandio M, Araujo VC. Nrf2-peroxiredoxin I axis in polymorphous adenocarcinoma is associated with low matrix metalloproteinase 2 level. Virchows Arch 2017; 471:793-798. [DOI: 10.1007/s00428-017-2218-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 08/01/2017] [Accepted: 08/08/2017] [Indexed: 12/30/2022]
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Zeng L, Ai CX, Wang YH, Zhang JS, Wu CW. Abrupt salinity stress induces oxidative stress via the Nrf2-Keap1 signaling pathway in large yellow croaker Pseudosciaena crocea. FISH PHYSIOLOGY AND BIOCHEMISTRY 2017; 43:955-964. [PMID: 28616764 DOI: 10.1007/s10695-016-0334-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 12/18/2016] [Indexed: 05/14/2023]
Abstract
The aim of the present study was to evaluate the effects of abrupt salinity stress (12, 26 (control), and 40) on lipid peroxidation, activities and mRNA levels of antioxidant enzymes (Cu/Zn-SOD, CAT, GPx, and GR), and gene expression of the Nrf2-Keap1 signaling molecules at different times (6, 12, 24, and 48 h) in the liver of large yellow croaker Pseudosciaena crocea. The results showed that lipid peroxidation was sharply reduced at 6 h and increased at 12 h before returning to control levels in the hypo-salinity group. Similarly, lipid peroxidation was significantly decreased at 6 h followed by a sharp increase towards the end of the exposure in the hyper-salinity group. Negative relationships between lipid peroxidation and antioxidant enzyme activities and positive relationships between activities and gene expression of antioxidant enzymes were observed, suggesting that the changes at molecular levels and enzyme activity levels may provide protective roles against damage from salinity stress. Obtained results also showed a coordinated transcriptional regulation of antioxidant genes, suggesting that Nrf2 is required for regulating these genes. Furthermore, there was a positive relationship between the mRNA levels of Nrf2 and Keap1, indicating that Keap1 plays an important role in switching off the Nrf2 response. In conclusion, this is the first study to elucidate effects of salinity stress on antioxidant responses in large yellow croaker through the Keap1-Nrf2 pathway.
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Affiliation(s)
- Lin Zeng
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China
| | - Chun-Xiang Ai
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005, China
| | - Yong-Hong Wang
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China
| | - Jian-She Zhang
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China
| | - Chang-Wen Wu
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China.
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Jeon HJ, Park YS, Cho DH, Kim JS, Kim E, Chae HZ, Chun SY, Oh JS. Peroxiredoxins are required for spindle assembly, chromosome organization, and polarization in mouse oocytes. Biochem Biophys Res Commun 2017; 489:193-199. [DOI: 10.1016/j.bbrc.2017.05.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 05/22/2017] [Indexed: 01/14/2023]
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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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15d-PGJ 2 as an endoplasmic reticulum stress manipulator in multiple myeloma in vitro and in vivo. Exp Mol Pathol 2017; 102:434-445. [DOI: 10.1016/j.yexmp.2017.05.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/04/2017] [Accepted: 05/08/2017] [Indexed: 12/18/2022]
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Deng Y, Wang Y, Zhang X, Sun L, Wu C, Shi Q, Wang R, Sun X, Bi S, Gooneratne R. Effects of T-2 Toxin on Pacific White Shrimp Litopenaeus vannamei: Growth, and Antioxidant Defenses and Capacity and Histopathology in the Hepatopancreas. JOURNAL OF AQUATIC ANIMAL HEALTH 2017; 29:15-25. [PMID: 28166479 DOI: 10.1080/08997659.2016.1249577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Modified-masked T-2 toxin (mT-2) formed during metabolism in edible aquatic animals may go undetected by traditional analytical methods, thereby underestimating T-2 toxicity. The effects of T-2 on growth and antioxidant capacity and histopathological changes in the hepatopancreas were studied in Pacific white shrimp Litopenaeus vannamei exposed for 20 d to 0, 0.5, 1.2, 2.4, 4.8, and 12.2 mg/kg of T-2 in their feed. The concentration of mT-2 in the hepatopancreas was detected by liquid chromatography-tandem mass spectrophotometry before and after trifluoroacetic acid (TFA) treatment that converted mT-2 to free T-2. A dose-dependent increase in mT-2 concentration was observed in the hepatopancreas. Dietary exposure to T-2 significantly decreased (P < 0.05) shrimp growth and survival rate compared with the controls. The malondialdehyde (MDA) concentration was significantly increased in shrimp exposed to feed with ≥2.4 mg/kg T-2 (P < 0.05). The antioxidant enzymes, superoxide dismutase (SOD) and glutathione peroxidase (GPx), total antioxidant capacity (T-AOC), and also glutathione (GSH) content increased in shrimp dosed with 2.4-4.8 mg/kg T-2 but declined at the highest dose (12.2 mg/kg), probably indicating an inability to cope with high concentrations of reactive oxygen species (ROS) as evident from a marked increase in MDA (P < 0.05) culminating in cellular toxicity. Histopathological changes in the hepatopancreas were dose dependent, with cell autophagy evident at the highest exposure dose. This is the first report in shrimp of a dose-dependent increase in ROS, SOD enzyme activity, and T-AOC at low T-2 exposures, and associated histopathological changes in the hepatopancreas, in response to dietary T-2. Received January 26, 2016; accepted October 9, 2016.
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Affiliation(s)
- Yijia Deng
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Yaling Wang
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Xiaodi Zhang
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Lijun Sun
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Chaojin Wu
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Qi Shi
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Rundong Wang
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Xiaodong Sun
- b College of Environment and Resources , Dalian Nationalities University , Dalian , 116600 , China
| | - Siyuan Bi
- c Shenzhen Bioeasy Biotechnologies Company Ltd ., Shenzhen , 518102 , China
| | - Ravi Gooneratne
- d Centre for Food Research and Innovation, Department of Wine, Food and Molecular Biosciences , Lincoln University , Lincoln 7647 , Canterbury , New Zealand
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Zheng JL, Zeng L, Xu MY, Shen B, Wu CW. Different effects of low- and high-dose waterborne zinc on Zn accumulation, ROS levels, oxidative damage and antioxidant responses in the liver of large yellow croaker Pseudosciaena crocea. FISH PHYSIOLOGY AND BIOCHEMISTRY 2017; 43:153-163. [PMID: 27522493 DOI: 10.1007/s10695-016-0275-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/08/2016] [Indexed: 06/06/2023]
Abstract
The aim of the present study was to assess survival rate, Zn accumulation, reactive oxygen species (ROS) levels, oxidative damage and antioxidant responses after Zn exposure (2 and 8 mg L-1 Zn) at different exposure times (6, 12, 24, 48 and 96 h) in the liver of large yellow croaker. Survival rate was reduced at 96 h, and hepatic Zn content increased during 24-96 by 8 mg L-1 Zn. In the 2 mg L-1 Zn group, no fish died and the increase in Zn content merely occurred at 96 h. Exposure to 8 mg L-1 Zn induced accumulation of ROS, lipid peroxidation and protein carbonylation during the late stage of exposure. In contrast, exposure to 2 mg L-1 Zn did not result in oxidative damage, which may result from the up-regulation of antioxidant defenses. Although exposure to 8 mg L-1 Zn increased activities and mRNA levels of antioxidant enzymes during the early stage of exposure, including Cu/Zn-SOD, Mn-SOD, CAT, GPx and GR, the activities of these enzymes except Cu/Zn-SOD were inhibited at 96 h. Furthermore, a sharp increase in Nrf2 expression was observed in fish exposed to 8 mg L-1 at 6 and 12 h, and 2 mg L-1 at 12 h and 24 h, suggesting that Nrf2 was required for the protracted induction of these genes. The late increase in Keap1 expression may support its role in switching off the Nrf2 response. In conclusion, the present study demonstrated different effects of low- and high-dose waterborne Zn on antioxidant responses, which could contribute to the understanding of antioxidant and toxic roles of zinc on a molecular level.
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Affiliation(s)
- Jia-Lang Zheng
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Lin Zeng
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Mei-Ying Xu
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Bin Shen
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Chang-Wen Wu
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China.
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Zhu D, Zhang P, Xie C, Zhang W, Sun J, Qian WJ, Yang B. Biodegradation of alkaline lignin by Bacillus ligniniphilus L1. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:44. [PMID: 28239416 PMCID: PMC5320714 DOI: 10.1186/s13068-017-0735-y] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 02/14/2017] [Indexed: 05/07/2023]
Abstract
BACKGROUND Lignin is the most abundant aromatic biopolymer in the biosphere and it comprises up to 30% of plant biomass. Although lignin is the most recalcitrant component of the plant cell wall, still there are microorganisms able to decompose it or degrade it. Fungi are recognized as the most widely used microbes for lignin degradation. However, bacteria have also been known to be able to utilize lignin as a carbon or energy source. Bacillus ligniniphilus L1 was selected in this study due to its capability to utilize alkaline lignin as a single carbon or energy source and its excellent ability to survive in extreme environments. RESULTS To investigate the aromatic metabolites of strain L1 decomposing alkaline lignin, GC-MS analysis was performed and fifteen single phenol ring aromatic compounds were identified. The dominant absorption peak included phenylacetic acid, 4-hydroxy-benzoicacid, and vanillic acid with the highest proportion of metabolites resulting in 42%. Comparison proteomic analysis was carried out for further study showed that approximately 1447 kinds of proteins were produced, 141 of which were at least twofold up-regulated with alkaline lignin as the single carbon source. The up-regulated proteins contents different categories in the biological functions of protein including lignin degradation, ABC transport system, environmental response factors, protein synthesis, assembly, etc. CONCLUSIONS GC-MS analysis showed that alkaline lignin degradation of strain L1 produced 15 kinds of aromatic compounds. Comparison proteomic data and metabolic analysis showed that to ensure the degradation of lignin and growth of strain L1, multiple aspects of cells metabolism including transporter, environmental response factors, and protein synthesis were enhanced. Based on genome and proteomic analysis, at least four kinds of lignin degradation pathway might be present in strain L1, including a Gentisate pathway, the benzoic acid pathway and the β-ketoadipate pathway. The study provides an important basis for lignin degradation by bacteria.
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Affiliation(s)
- Daochen Zhu
- School of Environment and safty Engineering, Jiangsu University, Zhenjiang, Jiangsu China
- State Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, Guangdong China
| | - Peipei Zhang
- School of Environment and safty Engineering, Jiangsu University, Zhenjiang, Jiangsu China
| | - Changxiao Xie
- School of Environment and safty Engineering, Jiangsu University, Zhenjiang, Jiangsu China
| | - Weimin Zhang
- State Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, Guangdong China
| | - Jianzhong Sun
- School of Environment and safty Engineering, Jiangsu University, Zhenjiang, Jiangsu China
| | - Wei-Jun Qian
- Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Bin Yang
- Bioproducts, Sciences and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, WA 99354 USA
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Kim J, Lee GR, Kim H, Jo YJ, Hong SE, Lee J, Lee HI, Jang YS, Oh SH, Lee HJ, Lee JS, Jeong W. Effective killing of cancer cells and regression of tumor growth by K27 targeting sulfiredoxin. Free Radic Biol Med 2016; 101:384-392. [PMID: 27825965 DOI: 10.1016/j.freeradbiomed.2016.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 01/23/2023]
Abstract
Cancer cells have been suggested to be more susceptible to oxidative damages and highly dependent on antioxidant capacity in comparison with normal cells, and thus targeting antioxidant enzymes has been a strategy for effective cancer treatment. Sulfiredoxin (Srx) is an enzyme that catalyzes the reduction of sulfinylated peroxiredoxins and thereby reactivates them. In this study we developed a Srx inhibitor, K27 (N-[7-chloro-2-(4-fluorophenyl)-4-quinazolinyl]-N-(2-phenylethyl)-β-alanine), and showed that it induces the accumulation of sulfinylated peroxiredoxins and oxidative stress, which leads to mitochondrial damage and apoptotic death of cancer cells. The effects of K27 were significantly reversed by ectopic expression of Srx or antioxidant N-acetyl cysteine. In addition, K27 led to preferential death of tumorigenic cells over non-tumorigenic cells, and suppressed the growth of xenograft tumor without acute toxicity. Our results suggest that targeting Srx might be an effective therapeutic strategy for cancer treatment through redox-mediated cell death.
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Affiliation(s)
- Jiwon Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Gong-Rak Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Hojin Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - You-Jin Jo
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Seong-Eun Hong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Jiae Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Hye In Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Yeong-Su Jang
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, South Korea
| | - Seung-Hyun Oh
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, South Korea
| | - Hwa Jeong Lee
- College of Pharmacy, Ewha Womans University, Seoul 120-750, South Korea
| | - Ju-Seog Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Woojin Jeong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea.
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78
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Kamariah N, Sek MF, Eisenhaber B, Eisenhaber F, Grüber G. Transition steps in peroxide reduction and a molecular switch for peroxide robustness of prokaryotic peroxiredoxins. Sci Rep 2016; 6:37610. [PMID: 27892488 PMCID: PMC5124861 DOI: 10.1038/srep37610] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/31/2016] [Indexed: 12/26/2022] Open
Abstract
In addition to their antioxidant function, the eukaryotic peroxiredoxins (Prxs) facilitate peroxide-mediated signaling by undergoing controlled inactivation by peroxide-driven over-oxidation. In general, the bacterial enzyme lacks this controlled inactivation mechanism, making it more resistant to high H2O2 concentrations. During peroxide reduction, the active site alternates between reduced, fully folded (FF), and oxidized, locally unfolded (LU) conformations. Here we present novel insights into the divergence of bacterial and human Prxs in robustness and sensitivity to inactivation, respectively. Structural details provide new insights into sub-steps during the catalysis of peroxide reduction, enabling the transition from an FF to a LU conformation. Complementary to mutational and enzymatic results, these data unravel the essential role of the C-terminal tail of bacterial Prxs to act as a molecular switch, mediating the transition from an FF to a LU state. In addition, we propose that the C-terminal tail has influence on the propensity of the disulphide bond formation, indicating that as a consequence on the robustness and sensitivity to over-oxidation. Finally, a physical linkage between the catalytic site, the C-terminal tail and the oligomer interface is described.
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Affiliation(s)
- Neelagandan Kamariah
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore
| | - Mun Foong Sek
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Republic of Singapore
| | - Birgit Eisenhaber
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore
| | - Frank Eisenhaber
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore.,School of Computer Engineering, Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore 637553, Republic of Singapore
| | - Gerhard Grüber
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Republic of Singapore.,School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Republic of Singapore
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79
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Duan Y, Zhang Y, Dong H, Zhang J. Effect of desiccation on oxidative stress and antioxidant response of the black tiger shrimp Penaeus monodon. FISH & SHELLFISH IMMUNOLOGY 2016; 58:10-17. [PMID: 27623339 DOI: 10.1016/j.fsi.2016.09.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/04/2016] [Accepted: 09/10/2016] [Indexed: 06/06/2023]
Abstract
In the present study, the oxidative stress and antioxidant response in hepatopancreas of the black tiger shrimp Penaeus monodon under desiccation stress were studied, such as activities of antioxidant enzymes (SOD, CAT, GPx and POD), oxidative damage to lipid and protein which indexed by contents of LPO, MDA, protein carbonyl (PC) and ROS production, and the expression of HSP70 and ferritin gene. The duration of desiccation significantly influenced the shrimp survival, and the mortality rates were 10% and 55.0% after desiccation 0.5 h and 3 h, respectively. Compared with the control group, after exposed to desiccation stress, the content of LPO, MDA, PC and ROS production in hepatopancreas increased significantly. SOD, CAT and POD activity in hepatopancreas increased significantly at 0.5 h, but decreased markedly at 1 h. GPx activity in hepatopancreas increased significantly at 0.5 h and 1 h, then decreased significantly at 3 h. The transcript levels of HSP70 and ferritin gene in hepatopancreas increased significantly at 1 h. HE staining showed that desiccation induced damage symptoms in hepatopancreas of P. monodon. These results revealed that desiccation could induce oxidative stress and antioxidant response via confusion of antioxidant enzymes activity and gene transcript level in hepatopancreas of P. monodon, and the time of shrimp under desiccation should lower than 0.5 h.
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Affiliation(s)
- Yafei Duan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Yue Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Hongbiao Dong
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Jiasong Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
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80
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Zheng J, Mao Y, Su Y, Wang J. Effects of nitrite stress on mRNA expression of antioxidant enzymes, immune-related genes and apoptosis-related proteins in Marsupenaeus japonicus. FISH & SHELLFISH IMMUNOLOGY 2016; 58:239-252. [PMID: 27582290 DOI: 10.1016/j.fsi.2016.08.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 08/23/2016] [Accepted: 08/26/2016] [Indexed: 06/06/2023]
Abstract
Nitrite accumulation in aquaculture systems is a potential risk factor that may trigger stress responses in aquatic organisms. However, the mechanisms regulating the responses of shrimp to nitrite stress remain unclear. In this study, full-length cDNA sequences of two apoptosis-related genes, caspase-3 and defender against apoptotic death (DAD-1), were cloned from Marsupenaeus japonicus for the first time, and their expression levels and tissue distribution were analyzed by quantitative real-time PCR (qRT-PCR). The full lengths of Mjcaspase-3 and MjDAD-1 were 1203 bp and 640 bp respectively, with deduced amino acid (AA) sequences of 321 and 114 AA. Mjcaspase-3 was predominantly expressed in haemocytes and weakly expressed in the seven other tissues tested. MjDAD-1 was mainly expressed in the defense and digestive tissues, especially in the hepatopancreas and hemocytes. To explore the influence of nitrite stress on the genetic response of antioxidant enzymes, immune-related genes and apoptosis-related proteins, the mRNA expression profiles of MjCAT, MjMnSOD, Mj-ilys, Mj-sty, Mjcaspase-3 and MjDAD-1 in response to nitrite stress were analyzed by qRT-PCR. The mRNA levels of MjCAT, MjMnSOD, Mj-ilys, Mj-sty, Mjcaspase-3 and MjDAD-1 show both time- and dose-dependent changes in response to nitrite stress. The mRNA expression levels of MjCAT and MjSOD peaked at 6 h for all nitrite concentrations tested (p < 0.05) and the up-regulated of MjCAT and MjSOD exhibited a positive correlation with the nitrite concentration. The mRNA expression levels of Mj-ilys and Mj-sty gradually decreased during the experiment period. Mjcaspase-3 mRNA level reached a maximum at 6 h (p < 0.05), and MjDAD-1 reached its peak at 12 h and 48 h in 10 mg/L and 20 mg/L nitrite, respectively. In addition, CAT and SOD activity showed changes in response to nitrite stress that mirrored the induced expression of MjCAT and MjMnSOD, and prolonged nitrite exposure reduced the activity of CAT. This study provided basic data for further elucidating the responses of shrimp to nitrite stress at the molecular level.
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Affiliation(s)
- Jinbin Zheng
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Yong Mao
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China.
| | - Yongquan Su
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Jun Wang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
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81
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Park J, Choi H, Kim B, Chae U, Lee DG, Lee SR, Lee S, Lee HS, Lee DS. Peroxiredoxin 5 (Prx5) decreases LPS-induced microglial activation through regulation of Ca 2+/calcineurin-Drp1-dependent mitochondrial fission. Free Radic Biol Med 2016; 99:392-404. [PMID: 27585948 DOI: 10.1016/j.freeradbiomed.2016.08.030] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 07/24/2016] [Accepted: 08/28/2016] [Indexed: 12/30/2022]
Abstract
Microglial activation is a hallmark of neurodegenerative diseases. ROS activates microglia by regulating transcription factors to express pro-inflammatory genes and is associated with disruption of Ca2+ homeostasis through thiol redox modulation. Recently, we reported that Prx5 can regulate activation of microglia cells by governing ROS. In addition, LPS leads to excessive mitochondrial fission, and regulation of mitochondrial dynamics involved in a pro-inflammatory response is important for the maintenance of microglial activation. However, the precise relationship among these signals and the role of Prx5 in mitochondrial dynamics and microglial activation is still unknown. In this study, we demonstrated that Ca2+/calcineurin-dependent de-phosphorylation of Drp1 induces mitochondrial fission and regulates mitochondrial ROS production, which influences the expression of pro-inflammatory mediators in LPS-induced microglia cells. Moreover, it is likely that cytosolic and Nox-derived ROS were upstream of mitochondrial fission and mitochondrial ROS generation in activated microglia cells. Prx5 regulates LPS-induced mitochondrial fission through modulation of Ca2+/calcineurin-dependent Drp1 de-phosphorylation by eliminating Nox-derived and cytosolic ROS. Therefore, we suggest that mitochondrial dynamics may be essential for understanding pro-inflammatory responses and that Prx5 may be used as a new therapeutic target to prevent neuroinflammation and neurodegenerative diseases.
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Affiliation(s)
- Junghyung Park
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Hoonsung Choi
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Jeollabuk-do, Republic of Korea
| | - Bokyung Kim
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Unbin Chae
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Dong Gil Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungcheongbuk-do, Republic of Korea
| | - Seunghoon Lee
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Jeollabuk-do, Republic of Korea
| | - Hyun-Shik Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea.
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Godahewa GI, Perera NCN, Elvitigala DAS, Jayasooriya RGPT, Kim GY, Lee J. Characterization of a 1-cysteine peroxiredoxin from big-belly seahorse (Hippocampus abdominalis); insights into host antioxidant defense, molecular profiling and its expressional response to septic conditions. FISH & SHELLFISH IMMUNOLOGY 2016; 57:186-197. [PMID: 27542613 DOI: 10.1016/j.fsi.2016.08.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/06/2016] [Accepted: 08/13/2016] [Indexed: 06/06/2023]
Abstract
1-cysteine peroxiredoxin (Prx6) is an antioxidant enzyme that protects cells by detoxifying multiple peroxide species. This study aimed to describe molecular features, functional assessments and potential immune responses of Prx6 identified from the big-belly seahorse, Hippocampus abdominalis (HaPrx6). The complete ORF (666 bp) of HaPrx6 encodes a polypeptide (24 kDa) of 222 amino acids, and harbors a prominent peroxiredoxin super-family domain, a peroxidatic catalytic center, and a peroxidatic cysteine. The deduced amino acid sequence of HaPrx6 shares a relatively high amino acid sequence similarity and close evolutionary relationship with Oplegnathus fasciatus Prx6. The purified recombinant HaPrx6 protein (rHaPrx6) was shown to protect plasmid DNA in the Metal Catalyzed Oxidation (MCO) assay and, together with 1,4-Dithiothreitol (DTT), protected human leukemia THP-1 cells from extracellular H2O2-mediated cell death. In addition, quantitative real-time PCR revealed that HaPrx6 mRNA was constitutively expressed in 14 different tissues, with the highest expression observed in liver tissue. Inductive transcriptional responses were observed in liver and kidney tissues of fish after treating them with bacterial stimuli, including LPS, Edwardsiella tarda, and Streptococcus iniae. These results suggest that HaPrx6 may play an important role in the immune response of the big-belly seahorse against microbial infection. Collectively, these findings provide structural and functional insights into HaPrx6.
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Affiliation(s)
- G I Godahewa
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - N C N Perera
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Don Anushka Sandaruwan Elvitigala
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Department of Zoology, University of Sri Jayewardenepura, Gangodawila, Nugegoda, 10250, Sri Lanka
| | - R G P T Jayasooriya
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Gi-Young Kim
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea.
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83
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Shao FY, Du ZY, Ma DL, Chen WB, Fu WY, Ruan BB, Rui W, Zhang JX, Wang S, Wong NS, Xiao H, Li MM, Liu X, Liu QY, Zhou XD, Yan HZ, Wang YF, Chen CY, Liu Z, Chen HY. B5, a thioredoxin reductase inhibitor, induces apoptosis in human cervical cancer cells by suppressing the thioredoxin system, disrupting mitochondrion-dependent pathways and triggering autophagy. Oncotarget 2016; 6:30939-56. [PMID: 26439985 PMCID: PMC4741579 DOI: 10.18632/oncotarget.5132] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 08/24/2015] [Indexed: 02/07/2023] Open
Abstract
The synthetic curcumin analog B5 is a potent inhibitor of thioredoxin reductase (TrxR) that has potential anticancer effects. The molecular mechanism underlying B5 as an anticancer agent is not yet fully understood. In this study, we report that B5 induces apoptosis in two human cervical cancer cell lines, CaSki and SiHa, as evidenced by the downregulation of XIAP, activation of caspases and cleavage of PARP. The involvement of the mitochondrial pathway in B5-induced apoptosis was suggested by the dissipation of mitochondrial membrane potential and increased expression of pro-apoptotic Bcl-2 family proteins. In B5-treated cells, TrxR activity was markedly inhibited with concomitant accumulation of oxidized thioredoxin, increased formation of reactive oxygen species (ROS), and activation of ASK1 and its downstream regulatory target p38/JNK. B5-induced apoptosis was significantly inhibited in the presence of N-acetyl-l-cysteine. Microscopic examination of B5-treated cells revealed increased presence of cytoplasmic vacuoles. The ability of B5 to activate autophagy in cells was subsequently confirmed by cell staining with acridine orange, accumulation of LC3-II, and measurement of autophagic flux. Unlike B5-induced apoptosis, autophagy induced by B5 is not ROS-mediated but a role for the AKT and AMPK signaling pathways is implied. In SiHa cells but not CaSki cells, B5-induced apoptosis was promoted by autophagy. These data suggest that the anticarcinogenic effects of B5 is mediated by complex interplay between cellular mechanisms governing redox homeostasis, apoptosis and autophagy.
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Affiliation(s)
- Fang-Yuan Shao
- Department of Pathogen Biology and Immunology, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhi-Yun Du
- Institute of Natural Medicine & Green Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Dong-Lei Ma
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Wen-Bo Chen
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Wu-Yu Fu
- Department of Pathogen Biology and Immunology, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou, China
| | - Bi-Bo Ruan
- Department of Pathogen Biology and Immunology, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou, China
| | - Wen Rui
- Department of Pathogen Biology and Immunology, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jia-Xuan Zhang
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Sheng Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Nai Sum Wong
- Department of Biochemistry, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hao Xiao
- University of the Chinese Academy of Sciences, Beijing, China
| | - Man-Mei Li
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Xiao Liu
- Department of Pathogen Biology and Immunology, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qiu-Ying Liu
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Xiao-Dong Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hai-Zhao Yan
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Yi-Fei Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Chang-Yan Chen
- Center for Drug Discovery, Northeastern University, Boston, MA, USA
| | - Zhong Liu
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, China
| | - Hong-Yuan Chen
- Department of Pathogen Biology and Immunology, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou, China
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Fiskus W, Coothankandaswamy V, Chen J, Ma H, Ha K, Saenz DT, Krieger SS, Mill CP, Sun B, Huang P, Mumm JS, Melnick AM, Bhalla KN. SIRT2 Deacetylates and Inhibits the Peroxidase Activity of Peroxiredoxin-1 to Sensitize Breast Cancer Cells to Oxidant Stress-Inducing Agents. Cancer Res 2016; 76:5467-78. [PMID: 27503926 DOI: 10.1158/0008-5472.can-16-0126] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 06/21/2016] [Indexed: 12/21/2022]
Abstract
SIRT2 is a protein deacetylase with tumor suppressor activity in breast and liver tumors where it is mutated; however, the critical substrates mediating its antitumor activity are not fully defined. Here we demonstrate that SIRT2 binds, deacetylates, and inhibits the peroxidase activity of the antioxidant protein peroxiredoxin (Prdx-1) in breast cancer cells. Ectopic overexpression of SIRT2, but not its catalytically dead mutant, increased intracellular levels of reactive oxygen species (ROS) induced by hydrogen peroxide, which led to increased levels of an overoxidized and multimeric form of Prdx-1 with activity as a molecular chaperone. Elevated levels of SIRT2 sensitized breast cancer cells to intracellular DNA damage and cell death induced by oxidative stress, as associated with increased levels of nuclear FOXO3A and the proapoptotic BIM protein. In addition, elevated levels of SIRT2 sensitized breast cancer cells to arsenic trioxide, an approved therapeutic agent, along with other intracellular ROS-inducing agents. Conversely, antisense RNA-mediated attenuation of SIRT2 reversed ROS-induced toxicity as demonstrated in a zebrafish embryo model system. Collectively, our findings suggest that the tumor suppressor activity of SIRT2 requires its ability to restrict the antioxidant activity of Prdx-1, thereby sensitizing breast cancer cells to ROS-induced DNA damage and cell cytotoxicity. Cancer Res; 76(18); 5467-78. ©2016 AACR.
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Affiliation(s)
- Warren Fiskus
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | | | - Hongwei Ma
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Kyungsoo Ha
- Department of Molecular Physiology, Baylor College of Medicine, Houston, Texas
| | - Dyana T Saenz
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Stephanie S Krieger
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Christopher P Mill
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Baohua Sun
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Peng Huang
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston Texas
| | - Jeffrey S Mumm
- Wilmer Eye Institute and the McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Ari M Melnick
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, New York
| | - Kapil N Bhalla
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Wu B, Yu H, Wang Y, Pan Z, Zhang Y, Li T, Li L, Zhang W, Ge L, Chen Y, Ho CK, Zhu D, Huang X, Lou Y. Peroxiredoxin-2 nitrosylation facilitates cardiomyogenesis of mouse embryonic stem cells via XBP-1s/PI3K pathway. Free Radic Biol Med 2016; 97:179-191. [PMID: 27261193 DOI: 10.1016/j.freeradbiomed.2016.05.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/10/2016] [Accepted: 05/28/2016] [Indexed: 11/24/2022]
Abstract
Protein nitrosylation is a ubiquitous post-translational modification in almost all biological systems. However, its function on stem cell biology is so far incompletely understood. Here, we demonstrated that peroxiredoxin 2 (Prdx-2) nitrosylation was involved in cardiomyocyte differentiation of mouse embryonic stem (ES) cells induced by S-nitrosoglutathione (GSNO). We found that temporary GSNO exposure could promote ES cell-derived cardiomyogenesis. Using a stable isotope labeling by amino acids in cell culture (SILAC)-based proteomics approach, coupled with biotin switch technique, a total of 104 nitrosylated proteins were identified. Specifically, one of the antioxidant enzymes, Prdx-2, was abundantly nitrosylated and temporarily reduced in antioxidant activity, causing transient endogenous hydrogen peroxide (H2O2) accumulation and subsequent X-box binding protein-1s/phosphatidylinositol 3-kinase pathway activation. The present study reveals the mechanism in which GSNO favors cardiomyocyte differentiation. Prdx-2 nitrosylation could be a potent strategy to affect the pluripotent stem cell-derived cardiomyogenesis.
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Affiliation(s)
- Bowen Wu
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Key Science and Technology Innovation Team for Stem Cell Translational Medicine of Cardiovascular Disease of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hao Yu
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Chu Kochen Honors College, Zhejiang University, Hangzhou 310058, China
| | - Yifan Wang
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Chu Kochen Honors College, Zhejiang University, Hangzhou 310058, China
| | - Zongfu Pan
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yihan Zhang
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Tong Li
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lu Li
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Key Science and Technology Innovation Team for Stem Cell Translational Medicine of Cardiovascular Disease of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Weichen Zhang
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Chu Kochen Honors College, Zhejiang University, Hangzhou 310058, China
| | - Lijun Ge
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ying Chen
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Chu Kochen Honors College, Zhejiang University, Hangzhou 310058, China
| | - Choe Kyong Ho
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; College of International Education, Zhejiang University, Hangzhou 310058, China; Haeju Medical University, Haeju, Democratic People's Republic of Korea
| | - Danyan Zhu
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Key Science and Technology Innovation Team for Stem Cell Translational Medicine of Cardiovascular Disease of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xin Huang
- Key Science and Technology Innovation Team for Stem Cell Translational Medicine of Cardiovascular Disease of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Cardiovascular Key Laboratory of Zhejiang Province, The 2nd Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, China.
| | - Yijia Lou
- Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Key Science and Technology Innovation Team for Stem Cell Translational Medicine of Cardiovascular Disease of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
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86
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Zhang J, Jing X, Niu W, Zhang M, Ge L, Miao C, Tang X. Peroxiredoxin 1 has an anti-apoptotic role via apoptosis signal-regulating kinase 1 and p38 activation in mouse models with oral precancerous lesions. Oncol Lett 2016; 12:413-420. [PMID: 27347160 DOI: 10.3892/ol.2016.4659] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 04/08/2016] [Indexed: 12/16/2022] Open
Abstract
Peroxiredoxin 1 (Prx1) is important in the protection of cells from oxidative damage and the regulation of cell proliferation and apoptosis. Prx1 is overexpressed in oral precancerous lesions of oral leukoplakia (OLK) and oral cancer; however, the association between Prx1 expression and OLK pathogenesis remains unknown. The present study investigated the role of Prx1 and its molecular mechanisms in oxidative stress-induced apoptosis during the pathogenesis of OLK. Wild-type and Prx1 knockout mice were treated with 50 µg/ml 4-nitroquinoline-1-oxide (4NQO) or 4NQO + H2O2 for 16 weeks to establish mouse models with tongue precancerous lesions. Apoptotic cells were detected using terminal deoxynucleotidyl transferase dUTP nick-end labeling assay. The expression of Prx1, apoptosis signal-regulating kinase 1 (ASK1), phosphor-ASK1, p38 and phosphor-p38 was analyzed using immunohistochemical staining, and their mRNA expression levels were evaluated by reverse transcription quantitative polymerase chain reaction. The present results demonstrated that 4NQO or 4NQO + H2O2 induced the development of tongue precancerous lesions in Prx1 knockout and wild-type mice. Prx1 was overexpressed in tongue precancerous lesions compared with normal tongue mucosa. There was a significant decrease in the degree of moderate or severe epithelial dysplasia, and mild epithelial dysplasia was clearly elevated, in Prx1 knockout mice treated with 4NQO + H2O2 compared with wild-type mice treated with 4NQO + H2O2. Prx1 suppressed apoptosis and upregulated phosphor-ASK1 and phosphor-p38 expression in tongue precancerous lesions. The present results suggest that Prx1 suppresses oxidative stress-induced apoptosis via the ASK1/p38 signalling pathway in mouse tongue precancerous lesions. In conclusion, Prx1 and H2O2 have a coordination role in promoting the progression of tongue precancerous mucosa lesions. The present findings provide novel insight into Prx1 function and the mechanisms of Prx1 in OLK pathogenesis.
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Affiliation(s)
- Jianfei Zhang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
| | - Xinying Jing
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
| | - Wenwen Niu
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
| | - Min Zhang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
| | - Lihua Ge
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
| | - Congcong Miao
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
| | - Xiaofei Tang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Beijing Key Laboratory, Capital Medical University, Beijing 100050, P.R. China
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87
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Ahn JH, Chen BH, Shin BN, Lee TK, Cho JH, Kim IH, Park JH, Lee JC, Tae HJ, Lee CH, Won MH, Lee YL, Choi SY, Hong S. Comparison of catalase immunoreactivity in the hippocampus between young, adult and aged mice and rats. Mol Med Rep 2016; 14:851-6. [PMID: 27221506 PMCID: PMC4929834 DOI: 10.3892/mmr.2016.5300] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/05/2016] [Indexed: 12/02/2022] Open
Abstract
Catalase (CAT) is an important antioxidant enzyme and is crucial in modulating synaptic plasticity in the brain. In this study, CAT expression as well as neuronal distribution was compared in the hippocampus among young, adult and aged mice and rats. Male ICR mice and Sprague Dawley rats were used at postnatal month (PM) 1, PM 6 and PM 24 as the young, adult and aged groups, respectively (n=14/group). CAT expression was examined by immunohistochemistry and western blot analysis. In addition, neuronal distribution was examined by NeuN immunohistochemistry. In the present study, the mean number of NeuN-immunoreactive neurons was marginally decreased in mouse and rat hippocampi during aging, although this change was not identified to be significantly different. However, CAT immunoreactivity was significantly increased in pyramidal and granule neurons in the adult mouse and rat hippocampi and was significantly decreased in the aged mouse and rat hippocampi compared with that in the young animals. CAT protein levels in the hippocampus were also lowest in the aged mouse and rat hippocampus. These results indicate that CAT expression is significantly decreased in the hippocampi of aged animals and decreased CAT expression may be closely associated with aging.
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Affiliation(s)
- Ji Hyeon Ahn
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Bai Hui Chen
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Bich-Na Shin
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Tae-Kyeong Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Jeong Hwi Cho
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - In Hye Kim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Joon Ha Park
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Hyun-Jin Tae
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Choong-Hyun Lee
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan, Chungcheongnam-do 31116, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Yun Lyul Lee
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Seongkweon Hong
- Department of Surgery, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
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Nawata A, Noguchi H, Mazaki Y, Kurahashi T, Izumi H, Wang KY, Guo X, Uramoto H, Kohno K, Taniguchi H, Tanaka Y, Fujii J, Sasaguri Y, Tanimoto A, Nakayama T, Yamada S. Overexpression of Peroxiredoxin 4 Affects Intestinal Function in a Dietary Mouse Model of Nonalcoholic Fatty Liver Disease. PLoS One 2016; 11:e0152549. [PMID: 27035833 PMCID: PMC4818088 DOI: 10.1371/journal.pone.0152549] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 03/16/2016] [Indexed: 02/07/2023] Open
Abstract
Background Accumulating evidence has shown that methionine- and choline-deficient high fat (MCD+HF) diet induces the development of nonalcoholic fatty liver disease (NAFLD), in which elevated reactive oxygen species play a crucial role. We have reported that peroxiredoxin 4 (PRDX4), a unique secretory member of the PRDX antioxidant family, protects against NAFLD progression. However, the detailed mechanism and potential effects on the intestinal function still remain unclear. Methods & Results Two weeks after feeding mice a MCD+HF diet, the livers of human PRDX4 transgenic (Tg) mice exhibited significant suppression in the development of NAFLD compared with wild-type (WT) mice. The serum thiobarbituric acid reactive substances levels were significantly lower in Tg mice. In contrast, the Tg small intestine with PRDX4 overexpression showed more suppressed shortening of total length and villi height, and more accumulation of lipid in the jejunum, along with lower levels of dihydroethidium binding. The enterocytes exhibited fewer apoptotic but more proliferating cells, and inflammation was reduced in the mucosa. Furthermore, the small intestine of Tg mice had significantly higher expression of cholesterol absorption-regulatory factors, including liver X receptor-α, but lower expression of microsomal triglyceride-transfer protein. Conclusion Our present data provide the first evidence of the beneficial effects of PRDX4 on intestinal function in the reduction of the severity of NAFLD, by ameliorating oxidative stress-induced local and systemic injury. We can suggest that both liver and intestine are spared, to some degree, by the antioxidant properties of PRDX4.
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Affiliation(s)
- Aya Nawata
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Hirotsugu Noguchi
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Yuichi Mazaki
- Department of Cellular Pharmacology, Graduate School of Medicine, Hokkaido University, Sapporo, 060–8638, Japan
| | - Toshihiro Kurahashi
- Department of Biomolecular Function, Graduate School of Medical Science, Yamagata University, Yamagata, 990–9585, Japan
| | - Hiroto Izumi
- Department of Occupational Pneumology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Ke-Yong Wang
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
- Shared-Use Research Center, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Xin Guo
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
- Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Hidetaka Uramoto
- Laboratory of Pathology, Hebei Cancer Institute, the Fourth Hospital of Hebei, Medical University, Jiankang Road 12, Shijiazhuang, 050011, Hebei, China
- Department of Thoracic Surgery, Saitama Cancer Center, Saitama, 362–0806, Japan
| | - Kimitoshi Kohno
- The President Laboratory, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
- Asahi-Matsumoto Hospital, Kitakyushu, 800–0242, Japan
| | - Hatsumi Taniguchi
- Department of Microbiology, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Junichi Fujii
- Department of Biomolecular Function, Graduate School of Medical Science, Yamagata University, Yamagata, 990–9585, Japan
| | - Yasuyuki Sasaguri
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
- Laboratory of Pathology, Fukuoka Wajiro Hospital, Fukuoka, 811–0213, Japan
| | - Akihide Tanimoto
- Department of Pathology, Field of Oncology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, 890–8544, Japan
| | - Toshiyuki Nakayama
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
| | - Sohsuke Yamada
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807–8555, Japan
- Department of Pathology, Field of Oncology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, 890–8544, Japan
- Institute of Pathology, Medical University of Graz, Graz, 8010, Austria
- Institute of Molecular Biosciences, University of Graz, Graz, 8010, Austria
- * E-mail:
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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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90
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Plant protein 2-Cys peroxiredoxin TaBAS1 alleviates oxidative and nitrosative stresses incurred during cryopreservation of mammalian cells. Biotechnol Bioeng 2016; 113:1511-21. [DOI: 10.1002/bit.25921] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 11/28/2015] [Accepted: 12/28/2015] [Indexed: 12/20/2022]
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91
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Kim H, Lee GR, Kim J, Baek JY, Jo YJ, Hong SE, Kim SH, Lee J, Lee HI, Park SK, Kim HM, Lee HJ, Chang TS, Rhee SG, Lee JS, Jeong W. Sulfiredoxin inhibitor induces preferential death of cancer cells through reactive oxygen species-mediated mitochondrial damage. Free Radic Biol Med 2016; 91:264-74. [PMID: 26721593 DOI: 10.1016/j.freeradbiomed.2015.12.023] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 11/05/2015] [Accepted: 12/19/2015] [Indexed: 01/08/2023]
Abstract
Recent studies have shown that many types of cancer cells have increased levels of reactive oxygen species (ROS) and enhance antioxidant capacity as an adaptation to intrinsic oxidative stress, suggesting that cancer cells are more vulnerable to oxidative insults and are more dependent on antioxidant systems compared with normal cells. Thus, disruption of redox homeostasis caused by a decline in antioxidant capacity may provide a method for the selective death of cancer cells. Here we show that ROS-mediated selective death of tumor cells can be caused by inhibiting sulfiredoxin (Srx), which reduces hyperoxidized peroxiredoxins, leading to their reactivation. Srx inhibitor increased the accumulation of sulfinic peroxiredoxins and ROS, which led to oxidative mitochondrial damage and caspase activation, resulting in the death of A549 human lung adenocarcinoma cells. Srx depletion also inhibited the growth of A549 cells like Srx inhibition, and the cytotoxic effects of Srx inhibitor were considerably reversed by Srx overexpression or antioxidants such as N-acetyl cysteine and butylated hydroxyanisol. Moreover, Srx inhibitor rendered tumorigenic ovarian cells more susceptible to ROS-mediated death compared with nontumorigenic cells and significantly suppressed the growth of A549 xenografts without acute toxicity. Our results suggest that Srx might serve as a novel therapeutic target for cancer treatment based on ROS-mediated cell death.
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Affiliation(s)
- Hojin Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Gong-Rak Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Jiwon Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Jin Young Baek
- College of Pharmacy, Ewha Womans University, Seoul 120-750, South Korea
| | - You-Jin Jo
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Seong-Eun Hong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Sung Hoon Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Jiae Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Hye In Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Song-Kyu Park
- College of Pharmacy, Korea University, Sejong 339-700, South Korea
| | - Hwan Mook Kim
- College of Pharmacy, Gachon University of Medicine and Science, Incheon 406-799, South Korea
| | - Hwa Jeong Lee
- College of Pharmacy, Ewha Womans University, Seoul 120-750, South Korea
| | - Tong-Shin Chang
- College of Pharmacy, Ewha Womans University, Seoul 120-750, South Korea
| | - Sue Goo Rhee
- Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - Ju-Seog Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Woojin Jeong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea.
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Duan Y, Zhang J, Dong H, Wang Y, Liu Q, Li H. Effect of desiccation and resubmersion on the oxidative stress response of the kuruma shrimp Marsupenaeus japonicus. FISH & SHELLFISH IMMUNOLOGY 2016; 49:91-99. [PMID: 26700171 DOI: 10.1016/j.fsi.2015.12.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/06/2015] [Accepted: 12/12/2015] [Indexed: 06/05/2023]
Abstract
In the present study, the oxidative stress response in hepatopancreas of Marsupenaeus japonicus to desiccation stress and resubmersed in seawater were studied, such as respiratory burst, ROS production ( [Formula: see text] ), activities of antioxidant enzymes (CAT, GPx, SOD, POD and GST) and oxidative damage to lipid and protein (indexed by contents of MDA). The duration of desiccation significantly influenced shrimp survival, and the mortality rates were 37.5% and 87.5% after desiccation 5 h and 10 h, respectively. After desiccation stress 3 h, the respiratory burst, ROS production, and the activity of SOD and CAT were up-regulated significantly. The activity of GPx and POD, and the content of MDA decreased significantly at 0.5 h and 1 h, and then increased significantly at 3 h. But GST activity was no significant change after desiccation. During the resubmersion period, most of the antioxidant enzymes activities could recover to the control level at 24 h, but a small quantity of the oxidative stress still existed in tissues. HE staining showed that desiccation stress induced damage symptoms in hepatopancreas of M. japonicus. These results revealed that desiccation influenced the antioxidative status and caused oxidative stress and tissue damage via confusion of antioxidant enzymes in M. japonicus, but the oxidative stress could be eliminated within a certain range after the shrimps were resubmersed in seawater.
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Affiliation(s)
- Yafei Duan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Jiasong Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
| | - Hongbiao Dong
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Yun Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Qingsong Liu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Hua Li
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
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Kim B, Park J, Chang KT, Lee DS. Peroxiredoxin 5 prevents amyloid-beta oligomer-induced neuronal cell death by inhibiting ERK-Drp1-mediated mitochondrial fragmentation. Free Radic Biol Med 2016; 90:184-94. [PMID: 26582373 DOI: 10.1016/j.freeradbiomed.2015.11.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/19/2015] [Accepted: 11/10/2015] [Indexed: 11/29/2022]
Abstract
Alzheimer's disease (AD), a neurodegenerative disorder, is caused by amyloid-beta oligomers (AβOs). AβOs induce cell death by triggering oxidative stress and mitochondrial dysfunction. A recent study showed that AβO-induced oxidative stress is associated with extracellular signal-regulated kinase (ERK)-dynamin related protein 1 (Drp1)-mediated mitochondrial fission. Reactive oxygen species (ROS) are regulated by antioxidant enzymes, especially peroxiredoxins (Prxs) that scavenge H2O2. These enzymes inhibit neuronal cell death induced by various neurotoxic reagents. However, it is unclear whether Prx5, which is specifically expressed in neuronal cells, protects these cells from AβO-induced damage. In this study, we found that Prx5 expression was upregulated by AβO-induced oxidative stress and that Prx5 decreased ERK-Drp1-mediated mitochondrial fragmentation and apoptosis of HT-22 neuronal cells. Prx5 expression was affected by AβO, and amelioration of oxidative stress by N-acetyl-L-cysteine decreased AβO-induced Prx5 expression. Prx5 overexpression reduced ROS as well as RNS and apoptotic cell death but Prx5 knockdown did not. In addition, Prx5 overexpression ameliorated ERK-Drp1-mediated mitochondrial fragmentation but Prx5 knockdown did not. These results indicated that inducible Prx5 expression by AβO plays a key role in inhibiting both ERK-Drp1-induced mitochondrial fragmentation and neuronal cell death by regulating oxidative stress. Thus, Prx5 may be a new therapeutic agent for treating AD.
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Affiliation(s)
- Bokyung Kim
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Junghyung Park
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Kyu-Tae Chang
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungcheongbuk-do, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 702-701, Republic of Korea.
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94
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He T, Hatem E, Vernis L, Lei M, Huang ME. PRX1 knockdown potentiates vitamin K3 toxicity in cancer cells: a potential new therapeutic perspective for an old drug. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:152. [PMID: 26689287 PMCID: PMC4687332 DOI: 10.1186/s13046-015-0270-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/11/2015] [Indexed: 12/23/2022]
Abstract
Background Many promising anticancer molecules are abandoned during the course from bench to bedside due to lack of clear-cut efficiency and/or severe side effects. Vitamin K3 (vitK3) is a synthetic naphthoquinone exhibiting significant in vitro and in vivo anticancer activity against multiple human cancers, and has therapeutic potential when combined with other anticancer molecules. The major mechanism for the anticancer activity of vitK3 is the generation of cytotoxic reactive oxygen species (ROS). We thus reasoned that a rational redox modulation of cancer cells could enhance vitK3 anticancer efficiency. Methods Cancer cell lines with peroxiredoxin 1 (PRX1) gene transiently or stably knocked-down and corresponding controls were exposed to vitK3 as well as a set of anticancer molecules, including vinblastine, taxol, doxorubicin, daunorubicin, actinomycin D and 5-fluorouracil. Cytotoxic effects and cell death events were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)-based assay, cell clonogenic assay, measurement of mitochondrial membrane potential and annexin V/propidium iodide double staining. Global ROS accumulation and compartment-specific H2O2 generation were determined respectively by a redox-sensitive chemical probe and H2O2-sensitive sensor HyPer. Oxidation of endogenous antioxidant proteins including TRX1, TRX2 and PRX3 was monitored by redox western blot. Results We observed that the PRX1 knockdown in HeLa and A549 cells conferred enhanced sensitivity to vitK3, reducing substantially the necessary doses to kill cancer cells. The same conditions (combination of vitK3 and PRX1 knockdown) caused little cytotoxicity in non-cancerous cells, suggesting a cancer-cell-selective property. Increased ROS accumulation had a crucial role in vitK3-induced cell death in PRX1 knockdown cells. The use of H2O2-specific sensors HyPer revealed that vitK3 lead to immediate accumulation of H2O2 in the cytosol, nucleus, and mitochondrial matrix. PRX1 silencing significantly up-regulated mRNA and protein levels of NRH:quinone oxidoreductase 2, which was partially responsible for vitK3-induced ROS accumulation and consequent cell death. Conclusion Our data suggest that PRX1 inactivation could represent an interesting strategy to enhance cancer cell sensitivity to vitK3, providing a potential new therapeutic perspective for this old molecule. Conceptually, a combination of drugs that modulate intracellular redox states and drugs that operate through the generation of ROS could be a new therapeutic strategy for cancer treatment.
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Affiliation(s)
- Tiantian He
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
| | - Elie Hatem
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
| | - Laurence Vernis
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
| | - Ming Lei
- Northwest A&F University, College of Life Science, Key Laboratory of Agricultural Molecular Biology, Yangling, Shaanxi Province, 712100, China.
| | - Meng-Er Huang
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
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95
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Park SJ, Kim TS, Kim JM, Chang KT, Lee HS, Lee DS. Repeated Superovulation via PMSG/hCG Administration Induces 2-Cys Peroxiredoxins Expression and Overoxidation in the Reproductive Tracts of Female Mice. Mol Cells 2015; 38:1071-8. [PMID: 26486164 PMCID: PMC4696998 DOI: 10.14348/molcells.2015.0173] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/28/2015] [Accepted: 07/30/2015] [Indexed: 01/01/2023] Open
Abstract
Superovulation induced by exogenous gonadotropin treatment (PMSG/hCG) increases the number of available oocytes in humans and animals. However, Superovulatory PMSG/hCG treatment is known to affect maternal environment, and these effects may result from PMSG/hCG treatment-induced oxidative stress. 2-Cys peroxiredoxins (2-Cys Prxs) act as antioxidant enzymes that protect cells from oxidative stress induced by various exogenous stimuli. Therefore, the objective of this study was to test the hypothesis that repeated PMSG/hCG treatment induces 2-Cys Prx expression and overoxidation in the reproductive tracts of female mice. Immunohistochemistry and western blotting analyses further demonstrated that, after PMSG/hCG treatment, the protein expression levels of 2-Cys Prxs increased most significantly in the ovaries, while that of Prx1 was most affected by PMSG/hCG stimulation in all tissues of the female reproductive tract. Repeated PMSG/hCG treatment eventually leads to 2-Cys Prxs overoxidation in all reproductive organs of female mice, and the abundance of the 2-Cys Prxs-SO2/3 proteins reported here supports the hypothesis that repeated superovulation induces strong oxidative stress and damage to the female reproductive tract. Our data suggest that excessive oxidative stress caused by repeated PMSG/hCG stimulation increases 2-Cys Prxs expression and overoxidation in the female reproductive organs. Intracellular 2-Cys Prx therefore plays an important role in maintaining the reproductive organ environment of female mice upon exogenous gonadotropin treatment.
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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 702-701,
Korea
| | - Tae-Shin Kim
- Embryology Laboratory, Neway Fertility, 115 East 57th Street Suite 500 New York, NY 10022,
USA
| | - Jin-Man Kim
- Cancer Research Institute and Department of Pathology, College of Medicine, Chungnam National University, Daejeon 301-747,
Korea
| | - Kyu-Tae Chang
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806,
Korea
| | - Hyun-Shik Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 702-701,
Korea
| | - Dong-Seok Lee
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 702-701,
Korea
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Zhang X, Lu J, Ren X, Du Y, Zheng Y, Ioannou PV, Holmgren A. Oxidation of structural cysteine residues in thioredoxin 1 by aromatic arsenicals enhances cancer cell cytotoxicity caused by the inhibition of thioredoxin reductase 1. Free Radic Biol Med 2015; 89:192-200. [PMID: 26169724 DOI: 10.1016/j.freeradbiomed.2015.07.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 06/18/2015] [Accepted: 07/07/2015] [Indexed: 01/06/2023]
Abstract
Thioredoxin systems, composed of thioredoxin reductase (TrxR), thioredoxin (Trx) and NADPH, play important roles in maintaining cellular redox homeostasis and redox signaling. Recently the cytosolic Trx1 system has been shown to be a cellular target of arsenic containing compounds. To elucidate the relationship of the structure of arsenic compounds with their ability of inhibiting TrxR1 and Trx1, and cytotoxicity, we have investigated the reaction of Trx1 system with seven arsenic trithiolates: As(Cys)3, As(GS)3, As(Penicillamine)3, As(Mercaptoethanesulfonate)3, As(Mercaptopurine)3, As(2-mercaptopyridine)3 and As(2-mercaptopyridine N-oxide)3. The cytotoxicity of these arsenicals was consistent with their ability to inhibit TrxR1 in vitro and in cells. Unlike other arsenicals, As(Mercaptopurine)3 which did not show inhibitory effects on TrxR1 had very weak cytotoxicity, indicating that TrxR1 is a reliable drug target for arsenicals. Moreover, the two aromatic compounds As(2-mercaptopyridine)3 and As(2-mercaptopyridine N-oxide)3 showed stronger cytotoxicity than the others. As(2-mercaptopyridine)3 which selectively oxidized two structural cysteines (Cys62 and Cys69) in Trx1 showed mild improvement in cytotoxicity. As(2-mercaptopyridine N-oxide)3 oxidized all the Cys residues in Trx1, exhibiting the strongest cytotoxicity. Oxidation of Trx1 by As(2-mercaptopyridine)3 and As(2-mercaptopyridine N-oxide)3 affected electron transfer from NADPH and TrxR1 to peroxiredoxin 1 (Prx1), which could result in the reactive oxygen species elevation and trigger cell death process. These results suggest that oxidation of structural cysteine residues in Trx1 by aromatic group in TrxR1-targeting drugs may sensitize tumor cells to cell death, providing a novel approach to regulate cellular redox signaling and also a basis for rational design of new anticancer agents.
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Affiliation(s)
- Xu Zhang
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
| | - Jun Lu
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
| | - Xiaoyuan Ren
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
| | - Yatao Du
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
| | - Yujuan Zheng
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, SE 171 76 Stockholm, Sweden.
| | | | - Arne Holmgren
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
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Adipocyte-derived PAMM suppresses macrophage inflammation by inhibiting MAPK signalling. Biochem J 2015; 472:309-18. [PMID: 26438880 DOI: 10.1042/bj20150019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 10/05/2015] [Indexed: 11/17/2022]
Abstract
Macrophages within adipose tissue play a key role in mediating inflammatory responses in adipose tissue that are associated with obesity-related metabolic complications. In an effort to identify novel proteins secreted from adipocytes that may negatively regulate macrophage inflammation, we found that peroxiredoxin (PRX)-like 2 activated in M-CSF stimulated monocytes (PAMM), a CXXC-type PRX-like 2 domain-containing redox regulatory protein, is a novel secreted protein with potent anti-inflammatory properties. PAMM is secreted from mature human adipocytes but not preadipocytes. Overexpression of PAMM significantly attenuated lipopolysaccharide (LPS)-induced macrophage inflammation. Incubation of macrophages with adipocyte-conditional medium treated with anti-PAMM antibody significantly enhanced LPS-induced interleukin-12 (IL-12) expression in Raw264.7 cells. In addition, incubation of Raw264.7 cells with purified PAMM protein had a similar anti-inflammatory effect. Moreover, forced expression of PAMM in Raw264.7 cells resulted in decreased LPS-induced ERK1/2, p38 and c-Jun N-terminal kinase (JNK) phosphorylation, suggesting that PAMM exerted the anti-inflammatory function probably by suppressing the mitogen-activated protein kinase (MAPK) signalling pathway. Mutations in the CXXC motif of PAMM that suppressed its anti-redox activity were still able to suppress production of inflammatory cytokines in LPS-stimulated macrophages, suggesting that PAMM's anti-inflammatory properties may be independent of its antioxidant properties. Finally, PAMM was highly expressed in both white (WAT) and brown adipose tissues (BAT) and further increased in obesity status. Our results suggest that adipocyte-derived PAMM may suppress macrophage activation by inhibiting MAPK signalling pathway.
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Duan Y, Zhang J, Dong H, Wang Y, Liu Q, Li H. Oxidative stress response of the black tiger shrimp Penaeus monodon to Vibrio parahaemolyticus challenge. FISH & SHELLFISH IMMUNOLOGY 2015; 46:354-365. [PMID: 26142143 DOI: 10.1016/j.fsi.2015.06.032] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Abstract
Vibrio parahaemolyticus is a virulent pathogen that affects shrimp aquaculture. Reactive oxygen species are produced by the immune system that defends the host against foreign microorganisms. In the present study, the oxidative stress response in hepatopancreas and gills of Penaeus monodon to V. parahaemolyticus challenge were studied, such as respiratory burst, ROS production (·O2(-) and ·OH), activities of antioxidant enzymes (CAT, GPx, SOD, POD and GST) and oxidative damage to lipid and protein (indexed by contents of MDA). Compared with the control group, after V. parahaemolyticus challenge, respiratory burst and ROS production were up-regulated significantly. GPx and POD activity increased significantly in hepatopancreas and gills of the shrimps at 12 h, but CAT activity decreased markedly at 12 h and 24 h. SOD and GST activity in hepatopancreas of the shrimps increased significantly at 1.5 h, but decreased markedly at 12 h-48 h. MDA content increased significantly after 6 h-24 h challenge. HE staining showed that V. parahaemolyticus challenge induced damage symptoms in hepatopancreas of P. monodon. Our study revealed that V. parahaemolyticus influenced the antioxidative status and caused oxidative stress and tissue damage via confusion of antioxidant enzymes in P. monodon.
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Affiliation(s)
- Yafei Duan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Jiasong Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
| | - Hongbiao Dong
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Yun Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Qingsong Liu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Hua Li
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
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100
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Elvitigala DAS, Priyathilaka TT, Whang I, Nam BH, Lee J. A teleostan homolog of catalase from black rockfish (Sebastes schlegelii): insights into functional roles in host antioxidant defense and expressional responses to septic conditions. FISH & SHELLFISH IMMUNOLOGY 2015; 44:321-331. [PMID: 25707597 DOI: 10.1016/j.fsi.2015.02.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 02/10/2015] [Accepted: 02/12/2015] [Indexed: 06/04/2023]
Abstract
Antioxidative defense renders a significant protection against environmental stress in organisms and maintains the correct redox balance in cells, thereby supporting proper immune function. Catalase is an indispensable antioxidant in organisms that detoxifies hydrogen peroxides produced in cellular environments. In this study, we sought to molecularly characterize a homolog of catalase (RfCat), identified from black rockfish (Sebastes schlegelii). RfCat consists of a 1581 bp coding region for a protein of 527 amino acids, with a predicted molecular weight of 60 kD. The protein sequence of RfCat harbored similar domain architecture to known catalases, containing a proximal active site signature and proximal heme ligand signature, and further sharing prominent homology with its teleostan counterparts. As affirmed by multiple sequence alignments, most of the functionally important residues were well conserved in RfCat. Furthermore, our phylogenetic analysis indicates its common vertebrate ancestral origin and a close evolutionary relationship with teleostan catalases. Recombinantly expressed RfCat demonstrated prominent peroxidase activity that varied with different substrate and protein concentrations, and protected against DNA damage. RfCat mRNA was ubiquitously expressed among different tissues examined, as detected by qPCR. In addition, RfCat mRNA expression was modulated in response to pathogenic stress elicited by Streptococcus iniae and poly I:C in blood and spleen tissues. Collectively, our findings indicate that RfCat may play an indispensable role in host response to oxidative stress and maintain a correct redox balance after a pathogen invasion.
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Affiliation(s)
- Don Anushka Sandaruwan Elvitigala
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Special Self-Governing Province 690-756, Republic of Korea
| | - Thanthrige Thiunuwan Priyathilaka
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Special Self-Governing Province 690-756, Republic of Korea
| | - Ilson Whang
- Fish Vaccine Research Center, Jeju National University, Jeju Special Self-Governing Province 690-756, Republic of Korea
| | - Bo-Hye Nam
- Biotechnology Research Division, National Fisheries Research and Development Institute, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan 619-705, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Special Self-Governing Province 690-756, Republic of Korea.
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