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Schmidt CJ, Kim DK, Pendarvis GK, Abasht B, McCarthy FM. Proteomic insight into human directed selection of the domesticated chicken Gallus gallus. PLoS One 2023; 18:e0289648. [PMID: 37549140 PMCID: PMC10406324 DOI: 10.1371/journal.pone.0289648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/21/2023] [Indexed: 08/09/2023] Open
Abstract
Chicken domestication began at least 3,500 years ago for purposes of divination, cockfighting, and food. Prior to industrial scale chicken production, domestication selected larger birds with increased egg production. In the mid-20th century companies began intensive selection with the broiler (meat) industry focusing on improved feed conversion, rapid growth, and breast muscle yield. Here we present proteomic analysis comparing the modern broiler line, Ross 708, with the UIUC legacy line which is not selected for growth traits. Breast muscle proteome analysis identifies cellular processes that have responded to human directed artificial selection. Mass spectrometry was used to identify protein level differences in the breast muscle of 6-day old chicks from Modern and Legacy lines. Our results indicate elevated levels of stress proteins, ribosomal proteins and proteins that participate in the innate immune pathway in the Modern chickens. Furthermore, the comparative analyses indicated expression differences for proteins involved in multiple biochemical pathways. In particular, the Modern line had elevated levels of proteins affecting the pentose phosphate pathway, TCA cycle and fatty acid oxidation while proteins involved in the first phase of glycolysis were reduced compared to the Legacy line. These analyses provide hypotheses linking the morphometric changes driven by human directed selection to biochemical pathways. These results also have implications for the poultry industry, specifically Wooden Breast disease which is linked to rapid breast muscle growth.
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Affiliation(s)
- Carl J. Schmidt
- Department of Animal and Food Sciences, University of Delaware, Newark, Delaware, United States of America
| | - Dong Kyun Kim
- Center for Innovation in Brain Sciences, University of Arizona, Tucson, Arizona, United States of America
| | - G Ken Pendarvis
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona, United States of America
| | - Behnam Abasht
- Department of Animal and Food Sciences, University of Delaware, Newark, Delaware, United States of America
| | - Fiona M. McCarthy
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona, United States of America
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Cheng C, Liu K, Shen F, Zhang J, Xie Y, Li S, Hou Y, Bai G. Astragaloside IV targets PRDX6, inhibits the activation of RAC subunit in NADPH oxidase 2 for oxidative damage. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 114:154795. [PMID: 37030053 DOI: 10.1016/j.phymed.2023.154795] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/14/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Radix Astragali Mongolici, as a traditional Chinese medicine, is widely used in the treatment of qi deficiency, viral or bacterial infection, inflammation and cancer. Astragaloside IV (AST), a key active compound in Radix Astragali Mongolici, has been shown to reduce disease progression by inhibiting oxidative stress and inflammation. However, the specific target and mechanism of action of AST in improving oxidative stress are still unclear. PURPOSE This study aims to explore the target and mechanism of AST to improve oxidative stress, and to explain the biological process of oxidative stress. METHODS AST functional probes were designed to capture target proteins and combined with protein spectrum to analyze target proteins. Small molecule and protein interaction technologies were used to verify the mode of action, while computer dynamics simulation technology was used to analyze the site of interaction with the target protein. The pharmacological activity of AST in improving oxidative stress was evaluated in a mouse model of acute lung injury induced by LPS. Additionally, pharmacological and serial molecular biological approaches were used to explore the underlying mechanism of action. RESULTS AST inhibits PLA2 activity in PRDX6 by targeting the PLA2 catalytic triad pocket. This binding alters the conformation and structural stability of PRDX6 and interferes with the interaction between PRDX6 and RAC, hindering the activation of the RAC-GDI heterodimer. Inactivation of RAC prevents NOX2 maturation, attenuates superoxide anion production, and improves oxidative stress damage. CONCLUSION The findings of this research indicate that AST impedes PLA2 activity by acting on the catalytic triad of PRDX6. This, in turn, disrupts the interaction between PRDX6 and RAC, thereby hindering the maturation of NOX2 and diminishing the oxidative stress damage.
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Affiliation(s)
- Chuanjing Cheng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Kaixin Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Fukui Shen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Jinling Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Yang Xie
- The Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, 450000, China
| | - Suyun Li
- The Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, 450000, China; Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases co-constructed by Henan province & Education Ministry of P.R., China, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Yuanyuan Hou
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China.
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China.
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Multi-Omics Profiling of Hypertrophic Cardiomyopathy Reveals Altered Mechanisms in Mitochondrial Dynamics and Excitation-Contraction Coupling. Int J Mol Sci 2023; 24:ijms24054724. [PMID: 36902152 PMCID: PMC10002553 DOI: 10.3390/ijms24054724] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Hypertrophic cardiomyopathy is one of the most common inherited cardiomyopathies and a leading cause of sudden cardiac death in young adults. Despite profound insights into the genetics, there is imperfect correlation between mutation and clinical prognosis, suggesting complex molecular cascades driving pathogenesis. To investigate this, we performed an integrated quantitative multi-omics (proteomic, phosphoproteomic, and metabolomic) analysis to illuminate the early and direct consequences of mutations in myosin heavy chain in engineered human induced pluripotent stem-cell-derived cardiomyocytes relative to late-stage disease using patient myectomies. We captured hundreds of differential features, which map to distinct molecular mechanisms modulating mitochondrial homeostasis at the earliest stages of pathobiology, as well as stage-specific metabolic and excitation-coupling maladaptation. Collectively, this study fills in gaps from previous studies by expanding knowledge of the initial responses to mutations that protect cells against the early stress prior to contractile dysfunction and overt disease.
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Kim JE, Park H, Kang TC. Peroxiredoxin 6 Regulates Glutathione Peroxidase 1-Medited Glutamine Synthase Preservation in the Hippocampus of Chronic Epilepsy Rats. Antioxidants (Basel) 2023; 12:antiox12010156. [PMID: 36671018 PMCID: PMC9855017 DOI: 10.3390/antiox12010156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Clasmatodendrosis (an autophagic astroglial degeneration) plays an important role in the regulation of spontaneous seizure duration but not seizure frequency or behavioral seizure severity in chronic epilepsy rats. Recently, it has been reported that N-acetylcysteine (NAC), a precursor to glutathione (GSH), attenuates clasmatodendritic degeneration and shortens spontaneous seizure duration in chronic epilepsy rats, although the underlying mechanisms of its anti-convulsive effects are not fully understood. To elucidate this, the present study was designed to investigate whether NAC affects astroglial glutamine synthase (GS) expression mediated by GSH peroxidase 1 (GPx1) and/or peroxiredoxin 6 (Prdx6) in the epileptic hippocampus. As compared to control animals, GS and GPx1 expressions were upregulated in reactive CA1 astrocytes of chronic epilepsy rats, while their expressions were significantly decreased in clasmatodendritic CA1 astrocytes and reactive astrocytes within the molecular layer of the dentate gyrus. Prdx6 expression was increased in reactive CA1 astrocytes as well as clasmatodendritic CA1 astrocytes. In the molecular layer of the dentate gyrus, Prdx6 expression levels were similar to those in control animals. NAC ameliorated clasmatodendrosis through the increment of GS and GPx1 expressions, while it abolished Prdx6 upregulation. 1-hexadecyl-3-(trifluoroethgl)-sn-glycerol-2 phosphomethanol (MJ33, a selective inhibitor of aiPLA2 activity of Prdx6) alleviated clasmatodendrosis by enhancing GPx1 and GS expressions in clasmatodendritic CA1 astrocytes without changing the Prdx6 level. NAC or MJ33 did not affect GS, GPx1 and Prdx6 expression in astrocytes within the molecular layer of the dentate gyrus. These findings indicate that upregulated aiPLA2 activity of Prdx6 may abolish GPx1-mediated GS preservation and lead to clasmatodendrosis in CA1 astrocytes, which would extend spontaneous seizure duration due to impaired glutamate-glutamine conversion regulated by GS. Therefore, the present data suggest that aiPLA2 activity of Prdx6 in astrocytes may be one of the upstream effectors of seizure duration in the epileptic hippocampus.
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Affiliation(s)
- Ji-Eun Kim
- Department of Anatomy and Neurobiolog, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
- Institute of Epilepsy Research, Hallym University, Chuncheon 24252, Republic of Korea
| | - Hana Park
- Department of Anatomy and Neurobiolog, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
- Institute of Epilepsy Research, Hallym University, Chuncheon 24252, Republic of Korea
| | - Tae-Cheon Kang
- Department of Anatomy and Neurobiolog, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
- Institute of Epilepsy Research, Hallym University, Chuncheon 24252, Republic of Korea
- Correspondence: ; Tel.: +82-33-248-2524; Fax: +82-33-248-2525
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Phasuk S, Jasmin S, Pairojana T, Chang HK, Liang KC, Liu IY. Lack of the peroxiredoxin 6 gene causes impaired spatial memory and abnormal synaptic plasticity. Mol Brain 2021; 14:72. [PMID: 33874992 PMCID: PMC8056661 DOI: 10.1186/s13041-021-00779-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/06/2021] [Indexed: 02/07/2023] Open
Abstract
Peroxiredoxin 6 (PRDX6) is expressed dominantly in the astrocytes and exerts either neuroprotective or neurotoxic effects in the brain. Although PRDX6 can modulate several signaling cascades involving cognitive functions, its physiological role in spatial memory has not been investigated yet. This study aims to explore the function of the Prdx6 gene in spatial memory formation and synaptic plasticity. We first tested Prdx6-/- mice on a Morris water maze task and found that their memory performance was defective, along with reduced long-term potentiation (LTP) in CA3-CA1 hippocampal synapses recorded from hippocampal sections of home-caged mice. Surprisingly, after the probe test, these knockout mice exhibited elevated hippocampal LTP, higher phosphorylated ERK1/2 level, and decreased reactive astrocyte markers. We further reduced ERK1/2 phosphorylation by administering MEK inhibitor, U0126, into Prdx6-/- mice before the probe test, which reversed their spatial memory deficit. This study is the first one to report the role of PRDX6 in spatial memory and synaptic plasticity. Our results revealed that PRDX6 is necessary for maintaining spatial memory by modulating ERK1/2 phosphorylation and astrocyte activation.
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Affiliation(s)
- Sarayut Phasuk
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sureka Jasmin
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Tanita Pairojana
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Hsueh-Kai Chang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Kai-Chi Liang
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Ingrid Y Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.
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Zhu D, Huang R, Yang C, Fu P, Chen L, Jiang Y, He L, Li Y, Liao L, Zhu Z, Wang Y. Identification and molecular characterization of peroxiredoxin 2 in grass carp (Ctenopharyngodon idella). FISH & SHELLFISH IMMUNOLOGY 2019; 92:570-582. [PMID: 31202963 DOI: 10.1016/j.fsi.2019.06.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
Peroxiredoxin (Prx), also named thioredoxin peroxidase (TPx), is a selenium independent antioxidant enzyme that can protect organisms from oxidative damage caused by reactive oxygen species (ROS) and is important for immune responses. In this study, the molecular cloning and characterization of a Prx2 homologue (CiPrx2) were described from grass carp (Ctenopharyngodon idella). The full-length cDNA of CiPrx2 was 1163 bp containing 5'-untranslated region (UTR) of 52 bp, a 3'-UTR of 517 bp with the putative polyadenylation consensus signal (AATAAA), an open reading frame (ORF) of 594 bp encoding polypeptides of 197 amino acids with a predicted molecular mass of 21.84 kDa and theoretical isoelectric point of 5.93. The analysis results of multiple sequence alignment and phylogenetic tree confirmed that CiPrx2 belong to the typical 2-Cys Prx subfamily. The CiPrx2 mRNA was ubiquitously expressed in all tested tissues. The temporal expression of CiPrx2 were differentially induced infected with grass carp reovirus (GCRV), polyinosinic:polycytidylic acid (poly I:C) and lipopolysaccharide (LPS) in liver and spleen. Subcellular localization of CiPrx2-GFP fusion proteins were only distributed in the cytoplasm. The purified recombinant CiPrx2 possessed an apparent antioxidant activity and could protect DNA against oxidative damage. Finally, CiPrx2 proteins could obviously inhibit H2O2 and heavy metal toxicity. However, further researches are needed to better understand the regulation of CiPrx2 under oxidative stresses.
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Affiliation(s)
- Denghui Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rong Huang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Cheng Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Peipei Fu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, And State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Liangming Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinjun Jiang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Libo He
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yongming Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Lanjie Liao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Zuoyan Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yaping Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
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Zhang L, Zhang Y, Wang Z, Chen Y, Li R. Intermittent hyperbaric oxygen exposure mobilizing peroxiredoxin 6 to prevent oxygen toxicity. J Physiol Sci 2019; 69:779-790. [PMID: 31286450 PMCID: PMC10716995 DOI: 10.1007/s12576-019-00694-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/26/2019] [Indexed: 01/05/2023]
Abstract
Intermittent hyperbaric oxygen exposure (IE-HBO) can protect the body against oxygen toxicity, but the underlying mechanisms are not very clear. Peroxiredoxin 6 (Prdx6) is a special endogenous antioxidative protein. We explored if the protective effects of IE-HBO are related to Prdx6. Mice were exposed to 280 kPa O2 for 60 min, followed by 30-min exposure to 20% O2/N2 mixture with equal pressure, repeated for six cycles. The Prdx6 protein level and non-selenium glutathione peroxidase (NSGPx) activity in the brain and lungs were then measured and the injury degree of lung and the oxidation level of brain and lung were evaluated. On this basis, the relationship between Prdx6 and IE-HBO's protection was explored. Generally, both IE-HBO and continuous exposure to HBO (CE-HBO) could increase the protein and mRNA levels of Prdx6, and such increases were more significant 24 h after cessation of exposure; moreover, the Prdx6 level of IE-HBO was higher than that of CE-HBO in both brain and lung, also more significantly 24 h after cessation of exposure. In addition, IE-HBO exposure could more effectively potentiate the activity of NSGPx and increase GSH content in brain and lung tissues. At the same time, it could reduce oxidation products in these tissues. IE-HBO could also provide protection for the lungs against injuries resulting from prolonged HBO exposure. These data showed that IE-HBO can potentiate the production and the activity of Prdx6 and consequently mitigate oxidative damages in brain and lungs. The influences of IE-HBO on Prdx6 may form an important basis for its protection against oxygen toxicity.
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Affiliation(s)
- Lichao Zhang
- Department of Pharmacy, Shanghai Hospital of Traditional Chinese Medicine, Shanghai, China
| | - Yanan Zhang
- Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai, 200433, China
| | - Zhongzhuang Wang
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yuliang Chen
- Department of Nautical and Aviation Medicine Center, Navy General Hospital, Beijing, China
| | - Runping Li
- Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai, 200433, China.
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Zha X, Wu G, Zhang H, Yang Y, Zhang Y, Ma L. PRDX6 regulates the H2O2 and blue light-induced APRE-19 cell apoptosis via down-regulating and interacting with RARA. Anim Cells Syst (Seoul) 2019; 23:241-245. [PMID: 31489244 PMCID: PMC6711153 DOI: 10.1080/19768354.2019.1592021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 12/27/2018] [Indexed: 12/22/2022] Open
Abstract
Hereditary retinal disease (HRD) is the primary retinal degeneration that leads to severe visual impairments and refractory blindness, and the therapy of HRD was most important in ophthalmology. The apoptosis of retinal cells plays important roles in HRD progression. Therefore, in this study, we explore the mechanism of H2O2 and blue light-induced apoptosis of ARPE-19 cells. Co-immunoprecipitation (Co-IP) is employed to test the interactions between proteins, and western blotting is used to detect the protein levels. Apoptosis is analyzed by Flow cytometry. Our results found that PRDX6 could interact with RARA in ARPE-19 cells, and H2O2 and blue light could significantly reduce the RARA protein expression, and also could inhibit the interaction between PRDX6 and RARA. Using a rescue experiment, we further elucidated that H2O2 and blue light reduced the RARA expression via down-regulating PRDX6. And H2O2 and blue light induced the ARPE-19 cell apoptosis via decreasing the expression of PRDX6. Our results suggested that the interaction between PRDX6 and RARA played important roles in the apoptosis of ARPE-19 cells.
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Affiliation(s)
- Xu Zha
- Department of the Ophthalmology, Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Guojiu Wu
- Department of the Ophthalmology, Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Hong Zhang
- Department of the Ophthalmology, Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Yanni Yang
- Department of the Ophthalmology, Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Yuanping Zhang
- Department of the Ophthalmology, Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Linkun Ma
- Department of the Ophthalmology, Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
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Wahlig S, Lovatt M, Mehta JS. Functional role of peroxiredoxin 6 in the eye. Free Radic Biol Med 2018; 126:210-220. [PMID: 30120980 DOI: 10.1016/j.freeradbiomed.2018.08.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/13/2018] [Accepted: 08/14/2018] [Indexed: 10/28/2022]
Abstract
Peroxiredoxin 6 (Prdx6) is the only mammalian 1-Cys member of the Prdx family, a group of enzymes which share the ability to reduce peroxides. In addition to its peroxidase function, Prdx6 also demonstrates phospholipase A2 and lysophosphatidylcholine acyl transferase (LPCAT) activities. These enzymatic activities play an important role in regenerating oxidized membrane phospholipids and maintaining an appropriate balance of intracellular reactive oxygen species. Development of clinical pathologies, including those within the eye, have been linked to dysregulation of Prdx6 function. Interplay between external stressors like exposure to UV light, transforming growth factor β (TGF-β), and hyperglycemia in conjunction with diminished Prdx6 levels and loss of redox balance is associated with cellular changes in a variety of ophthalmic pathologies including cataracts, glaucoma, and retinal degeneration. Many of these cellular abnormalities can be rescued through supplementation with exogenous Prdx6. Additionally, corneal endothelial cells have been found to express high levels of Prdx6 in the plasma membrane. These findings highlight the importance of Prdx6 as an essential regulator of oxidative stress in the eye.
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Affiliation(s)
- Stephen Wahlig
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore; Duke University School of Medicine, Durham, NC, USA
| | - Matthew Lovatt
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore
| | - Jodhbir S Mehta
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore; Singapore National Eye Center (SNEC), Singapore; Eye-ACP, Duke-NUS Graduate Medical School, Singapore.
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Yang YZ, Zhao Y, Yang L, Yu LP, Wang H, Ji XS. Characterization of 2-Cys peroxiredoxin 3 and 4 in common carp and the immune response against bacterial infection. Comp Biochem Physiol B Biochem Mol Biol 2018; 217:60-69. [DOI: 10.1016/j.cbpb.2017.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/20/2017] [Accepted: 12/12/2017] [Indexed: 01/02/2023]
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Li CH, Chen C, Zhang Q, Tan CN, Hu YJ, Li P, Wan JB, Feng G, Xia ZN, Yang FQ. Differential proteomic analysis of platelets suggested target-related proteins in rabbit platelets treated with Rhizoma Corydalis. PHARMACEUTICAL BIOLOGY 2017; 55:76-87. [PMID: 27653279 PMCID: PMC7011957 DOI: 10.1080/13880209.2016.1229340] [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] [Indexed: 05/11/2023]
Abstract
CONTEXT Corydalis yanhusuo W.T. Wang (Papaveraceae) (Rhizoma Corydalis) showed inhibitory effects on rabbit platelet aggregation induced by ADP, thrombin (THR) or arachidonic acid (AA). OBJECTIVE This study separates and identifies the possible target-related platelet proteins and suggests possible signal cascades of RC antiplatelet aggregation. MATERIALS AND METHODS Based on comparative proteomics, the differentially expressed platelet proteins treated before and after with 50 mg/mL RC 90% ethanol extract (for 15 min at 37 °C) were analyzed and identified by two dimensional gel electrophoresis (2-DE) and MALDI-TOF-MS/MS. To further verify the possible signalling pathways of RC antiplatelet aggregation function, the concentration of calcium (Ca2+) was measured by Fura-2/AM fluorescence (Ex 340/380 nm, Em 500 nm) (RC final concentrations of 0.0156-0.1563 mg/mL), the levels of P-selectin and cyclic guanosine monophosphate (cGMP) were quantified by ELISA (OD. 450 nm) (RC final concentrations of 0.0156-1.5625 mg/mL), and the 5-hydroxytryptamine (5-HT) level was measured using ortho-phthalaldehyde (OPT) fluorescence (Ex 340 nm, Em 470 nm) (RC final concentrations of 0.3125-1.5625 mg/mL). RESULTS The expression of 52 proteins were altered in rabbit platelets after the treatment and the MALDI-TOF-MS analysis indicated that those proteins include 12 cytoskeleton proteins, 7 cell signalling proteins, 3 molecular chaperone proteins, 6 proteins related to platelet function, 16 enzymes and 7 other related proteins. Furthermore, RC extract could decrease the levels of 5-HT [inhibition rate of 96.80% (p < 0.05, vs. THR-activated group) treated with 0.7813 mg/mL of RC], Ca2+ [172.73 ± 5.07 to 113.56 ± 5.46 nM (p < 0.001, vs. THR-activated group) treated with 0.0313 mg/mL of RC] and P-selectin [13.48 ± 0.96 ng/3 × 108 to 11.64 ± 0.17 ng/3 × 108 (p < 0.05, vs. THR-activated group) treated with 0.0156 mg/mL of RC], and increase in cGMP level [38.93 ± 0.57 to 50.26 ± 4.05 ng/3 × 108 (p < 0.05, vs. THR-activated group) treated with 1.5165 mg/mL of RC] in ADP (10 μmol/L), THR (0.25 u/mL) or AA-(0.205 mmol/L) activated rabbit platelets. DISCUSSION AND CONCLUSION The present study indicated that P2Y12 receptor might be one of the direct target proteins of RC in platelets. The signal cascades network of RC after binding with P2Y12 receptor is mediating Gαi proteins to activate downstream signalling pathways (AC and/or PI3K signalling pathways) for the inhibition of platelet aggregation.
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Affiliation(s)
- Chun-Hong Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Cen Chen
- Division of Imaging Science & Biomedical Engineering, King's College, London, UK
| | - Qian Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Chen-Ning Tan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Yuan-Jia Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Zhi-Ning Xia
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
- CONTACT Feng-Qing Yang, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
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Burillo E, Jorge I, Martínez-López D, Camafeita E, Blanco-Colio LM, Trevisan-Herraz M, Ezkurdia I, Egido J, Michel JB, Meilhac O, Vázquez J, Martin-Ventura JL. Quantitative HDL Proteomics Identifies Peroxiredoxin-6 as a Biomarker of Human Abdominal Aortic Aneurysm. Sci Rep 2016; 6:38477. [PMID: 27934969 PMCID: PMC5146935 DOI: 10.1038/srep38477] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 11/09/2016] [Indexed: 12/31/2022] Open
Abstract
High-density lipoproteins (HDLs) are complex protein and lipid assemblies whose composition is known to change in diverse pathological situations. Analysis of the HDL proteome can thus provide insight into the main mechanisms underlying abdominal aortic aneurysm (AAA) and potentially detect novel systemic biomarkers. We performed a multiplexed quantitative proteomics analysis of HDLs isolated from plasma of AAA patients (N = 14) and control study participants (N = 7). Validation was performed by western-blot (HDL), immunohistochemistry (tissue), and ELISA (plasma). HDL from AAA patients showed elevated expression of peroxiredoxin-6 (PRDX6), HLA class I histocompatibility antigen (HLA-I), retinol-binding protein 4, and paraoxonase/arylesterase 1 (PON1), whereas α-2 macroglobulin and C4b-binding protein were decreased. The main pathways associated with HDL alterations in AAA were oxidative stress and immune-inflammatory responses. In AAA tissue, PRDX6 colocalized with neutrophils, vascular smooth muscle cells, and lipid oxidation. Moreover, plasma PRDX6 was higher in AAA (N = 47) than in controls (N = 27), reflecting increased systemic oxidative stress. Finally, a positive correlation was recorded between PRDX6 and AAA diameter. The analysis of the HDL proteome demonstrates that redox imbalance is a major mechanism in AAA, identifying the antioxidant PRDX6 as a novel systemic biomarker of AAA.
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Affiliation(s)
- Elena Burillo
- Vascular Research Lab, IIS-Fundación Jiménez Díaz-Autonoma University, Madrid, Spain
| | - Inmaculada Jorge
- Cardiovascular Proteomics Laboratory, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Diego Martínez-López
- Vascular Research Lab, IIS-Fundación Jiménez Díaz-Autonoma University, Madrid, Spain
| | - Emilio Camafeita
- Cardiovascular Proteomics Laboratory, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | | | - Marco Trevisan-Herraz
- Cardiovascular Proteomics Laboratory, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Iakes Ezkurdia
- Cardiovascular Proteomics Laboratory, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Jesús Egido
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | | | - Olivier Meilhac
- Diabète athérothrombose Thérapies Réunion Océan Indien (UMR DéTROI U1188) - Université de La Réunion-CYROI- 2, rue Maxime Rivière 97490 Sainte Clotilde - La Réunion - France
| | - Jesús Vázquez
- Cardiovascular Proteomics Laboratory, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
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Li Q, Wang N, Wei H, Li C, Wu J, Yang G. miR-24-3p Regulates Progression of Gastric Mucosal Lesions and Suppresses Proliferation and Invasiveness of N87 Via Peroxiredoxin 6. Dig Dis Sci 2016; 61:3486-3497. [PMID: 27743162 PMCID: PMC5104799 DOI: 10.1007/s10620-016-4309-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/09/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND MicroRNAs, targeting mRNAs of cancer-associated genes, are often aberrantly expressed in human gastric cancer (GC). AIM We have examined the possible role and mechanisms of miRNA regulation of Prdx-6 in the development and progression of H. pylori-related gastric mucosal lesions. METHODS First, miR-24-3p was predicted to target Prdx-6, and this negative regulation was validated by luciferase reporter analyses, Western blot, and quantitative RT-PCR. Next, immunohistochemistry and in situ hybridization were performed to detect the Prdx-6 and miR-24-3p expression in tissue microarrays of gastric mucosal lesions. Finally, the miR-24-3p function in GC cell line N87 was examined by MTT, Annexin V-FITC, PI, transwell migration, and Matrigel invasion assays. RESULTS In our study, Prdx-6 expression was negatively regulated by miR-24-3p expression and miR-24-3p interacted with the 3'-untranslated region of Prdx-6 to down-regulate its expression level. In addition, miR-24-3p expression gradually decreased in human gastric specimens from chronic superficial gastritis (CSG) to dysplasia and was upregulated in GC tissues compared with adjacent normal tissues. Contrary to this, Prdx-6 expression showed inverse tendency in the same tissue. More so, expression of miR-24-3p was reduced in samples with H. pylori infection, especially in CSG. Moreover, miR-24-3p was associated with GC lymph nodes and liver metastasis. Gain- or loss-of-function experiments showed that miR-24-3p significantly inhibited N87 cell growth, migration, and invasion and promoted apoptosis, while Prdx-6 reversed these miR-24-3p effects. CONCLUSIONS miR-24-3p was identified as a regulator of development and progression of H. pylori-related gastric mucosal lesions.
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Affiliation(s)
- Qian Li
- Department of Gastroenterology, Peking University Ninth School of Clinical Medicine, Beijing, China ,Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing, 100039 China
| | - Nina Wang
- Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing, 100039 China ,Aerospace Center Hospital, Beijing, China ,The People’s Hospital Feixian, Shandong, China
| | - Hong Wei
- Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing, 100039 China ,Aerospace Center Hospital, Beijing, China
| | - Chao Li
- Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing, 100039 China ,Aerospace Center Hospital, Beijing, China
| | - Jing Wu
- Department of Gastroenterology, Peking University Ninth School of Clinical Medicine, Beijing, China
| | - Guibin Yang
- Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing, 100039 China ,Aerospace Center Hospital, Beijing, China
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14
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Inactivation of Peroxiredoxin 6 by the Pla Protease of Yersinia pestis. Infect Immun 2015; 84:365-74. [PMID: 26553463 DOI: 10.1128/iai.01168-15] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/02/2015] [Indexed: 02/03/2023] Open
Abstract
Pneumonic plague represents the most severe form of disease caused by Yersinia pestis due to its ease of transmission, rapid progression, and high mortality rate. The Y. pestis outer membrane Pla protease is essential for the development of pneumonic plague; however, the complete repertoire of substrates cleaved by Pla in the lungs is not known. In this study, we describe a proteomic screen to identify host proteins contained within the bronchoalveolar lavage fluid of mice that are cleaved and/or processed by Y. pestis in a Pla-dependent manner. We identified peroxiredoxin 6 (Prdx6), a host factor that contributes to pulmonary surfactant metabolism and lung defense against oxidative stress, as a previously unknown substrate of Pla. Pla cleaves Prdx6 at three distinct sites, and these cleavages disrupt both the peroxidase and phospholipase A2 activities of Prdx6. In addition, we found that infection with wild-type Y. pestis reduces the abundance of extracellular Prdx6 in the lungs compared to that after infection with Δpla Y. pestis, suggesting that Pla cleaves Prdx6 in the pulmonary compartment. However, following infection with either wild-type or Δpla Y. pestis, Prdx6-deficient mice exhibit no differences in bacterial burden, host immune response, or lung damage from wild-type mice. Thus, while Pla is able to disrupt Prdx6 function in vitro and reduce Prdx6 levels in vivo, the cleavage of Prdx6 has little detectable impact on the progression or outcome of pneumonic plague.
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15
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Singh SP, Chhunchha B, Fatma N, Kubo E, Singh SP, Singh DP. Delivery of a protein transduction domain-mediated Prdx6 protein ameliorates oxidative stress-induced injury in human and mouse neuronal cells. Am J Physiol Cell Physiol 2015; 310:C1-16. [PMID: 26447207 DOI: 10.1152/ajpcell.00229.2015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 09/30/2015] [Indexed: 01/08/2023]
Abstract
Oxidative stress or reduced expression of naturally occurring antioxidants during aging has been identified as a major culprit in neuronal cell/tissue degeneration. Peroxiredoxin (Prdx) 6, a protective protein with GSH peroxidase and acidic calcium-independent phospholipase A2 activities, acts as a rheostat in regulating cellular physiology by clearing reactive oxygen species (ROS) and thereby optimizing gene regulation. We found that under stress, the neuronal cells displayed reduced expression of Prdx6 protein and mRNA with increased levels of ROS, and the cells subsequently underwent apoptosis. Using Prdx6 fused to TAT transduction domain, we showed evidence that Prdx6 was internalized in human brain cortical neuronal cells, HCN-2, and mouse hippocampal cells, HT22. The cells transduced with Prdx6 conferred resistance against the oxidative stress inducers paraquat, H2O2, and glutamate. Furthermore, Prdx6 delivery ameliorated damage to neuronal cells by optimizing ROS levels and overstimulation of NF-κB. Intriguingly, transduction of Prdx6 increased the expression of endogenous Prdx6, suggesting that protection against oxidative stress was mediated by both extrinsic and intrinsic Prdx6. The results demonstrate that Prdx6 expression is critical to protecting oxidative stress-evoked neuronal cell death. We propose that local or systemic application of Prdx6 can be an effective means of delaying/postponing neuronal degeneration.
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Affiliation(s)
- Shatrunjai P Singh
- Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Bhavana Chhunchha
- Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Nigar Fatma
- Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Kanazawa, Japan; and
| | - Sanjay P Singh
- Department of Neurology, Creighton University, Omaha, Nebraska
| | - Dhirendra P Singh
- Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska;
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Bhaskar A, Munshi M, Khan SZ, Fatima S, Arya R, Jameel S, Singh A. Measuring glutathione redox potential of HIV-1-infected macrophages. J Biol Chem 2014; 290:1020-38. [PMID: 25406321 PMCID: PMC4294471 DOI: 10.1074/jbc.m114.588913] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Redox signaling plays a crucial role in the pathogenesis of human immunodeficiency virus type-1 (HIV-1). The majority of HIV redox research relies on measuring redox stress using invasive technologies, which are unreliable and do not provide information about the contributions of subcellular compartments. A major technological leap emerges from the development of genetically encoded redox-sensitive green fluorescent proteins (roGFPs), which provide sensitive and compartment-specific insights into redox homeostasis. Here, we exploited a roGFP-based specific bioprobe of glutathione redox potential (EGSH; Grx1-roGFP2) and measured subcellular changes in EGSH during various phases of HIV-1 infection using U1 monocytic cells (latently infected U937 cells with HIV-1). We show that although U937 and U1 cells demonstrate significantly reduced cytosolic and mitochondrial EGSH (approximately −310 mV), active viral replication induces substantial oxidative stress (EGSH more than −240 mV). Furthermore, exposure to a physiologically relevant oxidant, hydrogen peroxide (H2O2), induces significant deviations in subcellular EGSH between U937 and U1, which distinctly modulates susceptibility to apoptosis. Using Grx1-roGFP2, we demonstrate that a marginal increase of about ∼25 mV in EGSH is sufficient to switch HIV-1 from latency to reactivation, raising the possibility of purging HIV-1 by redox modulators without triggering detrimental changes in cellular physiology. Importantly, we show that bioactive lipids synthesized by clinical drug-resistant isolates of Mycobacterium tuberculosis reactivate HIV-1 through modulation of intracellular EGSH. Finally, the expression analysis of U1 and patient peripheral blood mononuclear cells demonstrated a major recalibration of cellular redox homeostatic pathways during persistence and active replication of HIV.
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Affiliation(s)
- Ashima Bhaskar
- From the Department of Microbiology and Cell Biology, Centre for Infectious Disease and Research, Indian Institute of Sciences, Bangalore 560012
| | - MohamedHusen Munshi
- From the Department of Microbiology and Cell Biology, Centre for Infectious Disease and Research, Indian Institute of Sciences, Bangalore 560012, the Department of Biotechnology, Jamia Millia Islamia, New Delhi 25, India
| | - Sohrab Zafar Khan
- the International Centre for Genetic Engineering and Biotechnology, New Delhi 110 67, and
| | - Sadaf Fatima
- the Department of Biotechnology, Jamia Millia Islamia, New Delhi 25, India
| | - Rahul Arya
- the International Centre for Genetic Engineering and Biotechnology, New Delhi 110 67, and
| | - Shahid Jameel
- the International Centre for Genetic Engineering and Biotechnology, New Delhi 110 67, and
| | - Amit Singh
- From the Department of Microbiology and Cell Biology, Centre for Infectious Disease and Research, Indian Institute of Sciences, Bangalore 560012,
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Wang T, Diaz AJG, Yen Y. The role of peroxiredoxin II in chemoresistance of breast cancer cells. BREAST CANCER (DOVE MEDICAL PRESS) 2014; 6:73-80. [PMID: 24976757 PMCID: PMC4041024 DOI: 10.2147/bctt.s61281] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Peroxiredoxin (Prx)II belongs to a family of redox-active proteins that use redox-sensitive cysteine in the active site to reduce peroxides. PrxII is induced by various oxidative stimuli and plays an important protective role against oxidative radical damage by reactive oxygen species. PrxII expression levels are correlated with resistance to radiation therapy or certain anti-cancer drugs in radioresistant breast cancer cells, glioblastomas, and head and neck cancer cells as well as in tissue isolated from head and neck patients who do not respond to radiation therapy. Small interfering RNA (siRNA) that inhibits the PrxII gene expression has been shown to partially reverse the radioresistant phenotype in radiation resistant breast cancer cells and sensitizes glioma cells to oxidative stress, highlighting the potential clinical importance of PrxII in radiation resistance in cancer. This article focuses on the role that PrxII may play in chemoresistant breast cancer cells.
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Affiliation(s)
- Tieli Wang
- Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, CA, USA
| | - Anthony Joseph Gomez Diaz
- Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, CA, USA
| | - Yun Yen
- Department of Clinical and Molecular Pharmacology, Beckman Research Institute of City of Hope National Medical Center, Duarte, CA, USA
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