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Estrada-Cárdenas P, Peregrino-Uriarte AB, Gómez-Jiménez S, Valenzuela-Soto EM, Leyva-Carrillo L, Yepiz-Plascencia G. Responses and modulation of the white shrimp Litopenaeus vannamei glutathione peroxidases 2 and 4 during hypoxia, reoxygenation and GPx4 knock-down. Biochimie 2023; 214:157-164. [PMID: 37460039 DOI: 10.1016/j.biochi.2023.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 06/06/2023] [Accepted: 07/08/2023] [Indexed: 07/25/2023]
Abstract
Glutathione peroxidases (GPxs) are important antioxidant enzymes that act at distinct levels of the antioxidant defense. In vertebrates, there are several glutathione peroxidase (GPx) isoforms with different cellular and tissue distribution, but little is known about their interrelationships. The shrimp Litopenaeus vannamei is the main crustacean cultivated worldwide. It is affected by environmental stressors, including hypoxia and reoxygenation that cause reactive oxygen species accumulation. Thus, the antioxidant response modulation is key for shrimp resilience. Recently, several GPx isoforms genes were identified in the L. vannamei genome sequence, but their functions are just beginning to be studied. As in vertebrates, shrimp GPx isoforms can present differences in their antioxidant responses. Also, there could be interrelationships among the isoforms that may influence their responses. We evaluated shrimp GPx2 and GPx4 expressions during hypoxia, reoxygenation, and GPx4 knock-down using RNAi for silencing, as well as the enzymatic activity of total GPx and GPx4. Also, glutathione content in hepatopancreas was evaluated. GPx2 and GPx4 presented similar expression patterns during hypoxia and reoxygenation. Their expressions decreased during hypoxia and were reestablished in reoxygenation at 6 h in non-silenced shrimp. GPx2 expression was down-regulated by GPx4 knock-down, suggesting that GPx4 affects GPx2 expression. Total GPx activity changed in hypoxia and reoxygenation at 6 h but not at 12 h, while GPx4 activity was not affected by any stressor. The GSH/GSSG ratio in hepatopancreas indicated that at early hours, the redox status remains well-modulated but at 12 h it is impaired by hypoxia and reoxygenation.
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Affiliation(s)
- Paulina Estrada-Cárdenas
- Centro de Investigación en Alimentación y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, Hermosillo, Sonora, 83304, Mexico
| | - Alma B Peregrino-Uriarte
- Centro de Investigación en Alimentación y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, Hermosillo, Sonora, 83304, Mexico
| | - Silvia Gómez-Jiménez
- Centro de Investigación en Alimentación y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, Hermosillo, Sonora, 83304, Mexico
| | - Elisa M Valenzuela-Soto
- Centro de Investigación en Alimentación y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, Hermosillo, Sonora, 83304, Mexico
| | - Lilia Leyva-Carrillo
- Centro de Investigación en Alimentación y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, Hermosillo, Sonora, 83304, Mexico
| | - Gloria Yepiz-Plascencia
- Centro de Investigación en Alimentación y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, Hermosillo, Sonora, 83304, Mexico.
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Jiang J, Chen B, Tang B, Wei Q. Selenium in Prostate Cancer: Prevention, Progression, and Treatment. Pharmaceuticals (Basel) 2023; 16:1250. [PMID: 37765058 PMCID: PMC10536940 DOI: 10.3390/ph16091250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Selenium, a trace mineral with various biological functions, has become a focal point in prostate cancer research. This review aims to present a comprehensive overview of selenium's involvement in prostate cancer, covering its impact on prevention, development, treatment, and underlying mechanisms. Observational studies have revealed a link between selenium levels and selenoproteins with prostate cancer progression. However, randomized controlled studies have shown that selenium supplementation does not prevent prostate cancer (HR: 0.95; 95% CI 0.80-1.13). This discrepancy might be attributed to selenoprotein single nucleotide polymorphisms. In the context of combinatorial therapy, selenium has demonstrated promising synergistic potential in the treatment of prostate cancer. Emerging evidence highlights the significant role of selenium and selenoproteins in prostate cancer, encompassing AR signaling, antioxidative properties, cell death, cell cycle regulation, angiogenesis, epigenetic regulation, immunoregulation, epithelial-mesenchymal transformation, and redox signal. In conclusion, selenium's diverse properties make it a promising trace mineral in prostate cancer prevention, development, and treatment and as a platform for exploring novel agents.
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Affiliation(s)
- Jinjiang Jiang
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Bo Chen
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Bo Tang
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Qiang Wei
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
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Cell Cycle-Related Gene SPC24: A Novel Potential Diagnostic and Prognostic Biomarker for Laryngeal Squamous Cell Cancer. BIOMED RESEARCH INTERNATIONAL 2023; 2023:1733100. [PMID: 36718148 PMCID: PMC9884166 DOI: 10.1155/2023/1733100] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 10/02/2022] [Accepted: 12/27/2022] [Indexed: 01/22/2023]
Abstract
Laryngeal squamous cell cancer (LSCC) is a common malignant tumor with a high degree of malignancy, and its etiology remains unclear. Therefore, screening potential biomarkers is necessary to facilitate the treatment and diagnosis of LSCC. Robust rank aggregation (RRA) analysis was used to integrate two gene expression datasets of LSCC patients from the Gene Expression Omnibus (GEO) database and identify differentially expressed genes (DEGs) between LSCC and nonneoplastic tissues. A gene coexpression network was constructed using weighted gene correlation network analysis (WGCNA) to explore potential associations between the module genes and clinical features of LSCC. Combining differential gene expression analysis and survival analysis, we screened potential hub genes, including CDK1, SPC24, HOXB7, and SELENBP1. Subsequently, western blotting and immunohistochemistry were used to test the protein levels in clinical specimens to verify our findings. Finally, four candidate diagnostic and prognostic biomarkers (CDK1, SPC24, HOXB7, and SELENBP1) were identified. We propose, for the first time, that SPC24 is a gene that may associate with LSCC malignancy and is a novel therapeutic target. These findings may provide important mechanistic insight of LSCC.
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Li J, Yu Z, Han B, Li S, Lv Y, Wang X, Yang Q, Wu P, Liao Y, Qu B, Zhang Z. Activation of the GPX4/TLR4 Signaling Pathway Participates in the Alleviation of Selenium Yeast on Deltamethrin-Provoked Cerebrum Injury in Quails. Mol Neurobiol 2022; 59:2946-2961. [PMID: 35247140 DOI: 10.1007/s12035-022-02744-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/10/2022] [Indexed: 12/11/2022]
Abstract
Deltamethrin (DLM) is a member of pyrethroid pesticide widely applied for agriculture and aquaculture, and its residue in the environment seriously threatens the bio-safety. The cerebrum might be vulnerable to pesticide-triggered oxidative stress. However, there is no specific antidote for treating DLM-triggered cerebral injury. Selenium (Se) is an essential trace element functionally forming selenoprotein glutathione peroxidase (GPX) in antioxidant defense. Se yeast (SY) is a common and effective organic form of Se supplement with high selenomethionine content. Accordingly, this study focused on investigating the therapeutic potential of SY on DLM-induced cerebral injury in quails after chronically exposing to DLM and exploring the underlying mechanisms. Quails were treated with/without SY (0.4 mg kg-1 SY added in standard diet) in the presence/absence of DLM (45 mg kg-1 body weight intragastrically) for 12 weeks. The results showed SY supplementation ameliorated DLM-induced cerebral toxicity. Concretely, SY elevated the content of Se and increased GPX4 level in DLM-treated quail cerebrum. Furthermore, SY enhanced antioxidant defense system by upregulating nuclear factor-erythroid-2-related factor 2 (Nrf2) associated members. Inversely, SY diminished the changes of apoptosis- and inflammation-associated proteins and genes including toll-like receptor 4 (TLR4). Collectively, our results suggest that dietary SY protects against DLM-induced cerebral toxicity in quails via positively regulating the GPX4/TLR4 signaling pathway. GPX4 may be a potential therapeutic target for insecticide-induced biotoxicity.
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Affiliation(s)
- Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Zhongxian Yu
- Pharmacy Department, The Affiliated Hospital To Changchun University of Chinese Medicine, 1478 Gongnong Road, Hongqi Street, Chaoyang District, Changchun, Jilin Province, 130021, China
| | - Bing Han
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Xiaoqiao Wang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Qingyue Yang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Pengfei Wu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Yuge Liao
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Bing Qu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China. .,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, 150030, China.
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5
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Martins Alves AM, Pereira Menezes Reis S, Peres Gramacho K, Micheli F. The glutathione peroxidase family of Theobroma cacao: Involvement in the oxidative stress during witches' broom disease. Int J Biol Macromol 2020; 164:3698-3708. [PMID: 32882281 DOI: 10.1016/j.ijbiomac.2020.08.222] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 05/26/2020] [Accepted: 08/28/2020] [Indexed: 11/27/2022]
Abstract
The glutathione peroxidases (GPXs) are enzymes which are part of the cell antioxidant system inhibiting the ROS-induced damages of membranes and proteins. In cacao (Theobroma cacao L.) genome, five GPX genes were identified. Cysteine insertion codons (UGU) were found in TcPHGPX, TcGPX2, TcGPX4, TcGPX6 and tryptophan insertion codon (UGG) in TcGPX8. Multiple alignments revealed conserved domains between TcGPXs and other plants and human GPXs. Homology modeling was performed using the Populus trichocarpa GPX5 structure as template, and the molecular modeling showed that TcGPXs have affinity with selenometionine in their active site. In silico analysis of the TcGPXs promoter region revealed the presence of conserved cis-elements related to biotic stresses and hormone responsiveness. The expression analysis of TcGPXs in cacao plantlet meristems infected by M. perniciosa showed that TcGPXs are most expressed in susceptible variety than in resistant one, mainly in disease stages in which oxidative stress and programmed cell death occurred. This data, associated with phylogenetic and location analysis suggested that TcGPXs may play a role in protecting cells from oxidative stress as a try of disease progression reduction. To our knowledge, this is the first study of the overall GPX family from T. cacao.
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Affiliation(s)
- Akyla Maria Martins Alves
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900 Ilhéus, BA, Brazil
| | - Sara Pereira Menezes Reis
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900 Ilhéus, BA, Brazil
| | | | - Fabienne Micheli
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900 Ilhéus, BA, Brazil; CIRAD, UMR AGAP, F-34398 Montpellier, France.
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6
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Diamond AM. Selenoproteins of the Human Prostate: Unusual Properties and Role in Cancer Etiology. Biol Trace Elem Res 2019; 192:51-59. [PMID: 31300958 PMCID: PMC6801063 DOI: 10.1007/s12011-019-01809-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/01/2019] [Indexed: 12/18/2022]
Abstract
The prostate is an important organ for the maintenance of sperm health with prostate cancer being a common disease for which there is a critical need to distinguish indolent from aggressive disease. Several selenium-containing proteins have been implicated in prostate cancer risk or outcome due to either enzyme function, the reduced levels of these proteins being associated with cancer recurrence after prostatectomy or their corresponding genes containing single-nucleotide polymorphisms associated with increased risk. Moreover, experimental data obtained from the manipulation of either cultured cells or animal models have indicated that some of these proteins are contributing mechanistically to prostate cancer incidence or progression. Among these are selenocysteine-containing proteins selenoprotein P (SELENOP), glutathione peroxidase (GPX1), and selenoprotein 15 (SELENOF); and the selenium-associated protein selenium-binding protein 1 (SBP1). Genotyping of some of the genes for these proteins has identified functional single-nucleotide polymorphisms that are associated with prostate cancer risk and the direct quantification of these proteins in human prostate tissues has not only revealed associations to clinical outcomes but have also identified unique properties that are different from what is observed in other tissue types. The location of GPX1 in the nucleus and SELENOF in the plasma membrane of prostate epithelial cells indicates that these proteins may have functions in normal prostate tissue that are distinct from that of the other tissue types.
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Affiliation(s)
- Alan M Diamond
- Department of Pathology, College of Medicine, University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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7
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Martins Alves AM, Pereira Menezes S, Matos Lima E, Peres Gramacho K, Silva Andrade B, Macêdo Ferreira M, Pirovani CP, Micheli F. The selenium-binding protein of Theobroma cacao: A thermostable protein involved in the witches' broom disease resistance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 142:472-481. [PMID: 31430675 DOI: 10.1016/j.plaphy.2019.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/23/2019] [Accepted: 08/08/2019] [Indexed: 06/10/2023]
Abstract
The selenium-binding proteins are known to be inducers of apoptosis in human and animals, and have been studied as target for the treatment of various types of cancer. In plants, SBP expression has been related to abiotic and biotic stress resistance. The SBP from Theobroma cacao (TcSBP) was first identified from a cocoa-Moniliophthora perniciosa cDNA library. The present study provides details on the TcSBP gene and protein structure. Multiple alignments revealed conserved domains between SBP from plants, human and archea. Homology modeling and molecular docking were performed and showed that the TcSBP has affinity to selenite in the active CSSC site. This result was confirmed by circular dichroism of the recombinant TcSBP, which also presented thermostable behavior. RT-qPCR analysis showed that TcSBP was differentially expressed in resistant vs susceptible cacao varieties inoculated by M. perniciosa and its expression was probably due to hormone induction via cis-regulating elements present in its promotor. The presence of the CSSC domain suggested that TcSBP acted by altering oxidation/reduction of proteins during H2O2 production and programmed cell death in the final stages of the witches' broom disease. To our knowledge, this is the first in silico and in vitro analysis of the SBP from cacao.
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Affiliation(s)
- Akyla Maria Martins Alves
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900, Ilhéus-BA, Brazil
| | - Sara Pereira Menezes
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900, Ilhéus-BA, Brazil
| | - Eline Matos Lima
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900, Ilhéus-BA, Brazil
| | | | - Bruno Silva Andrade
- Universidade Estadual do Sudoeste da Bahia (UESB), Av. José Moreira Sobrinho, Jequié, Bahia, 45206-190, Brazil
| | - Monaliza Macêdo Ferreira
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900, Ilhéus-BA, Brazil
| | - Carlos Priminho Pirovani
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900, Ilhéus-BA, Brazil
| | - Fabienne Micheli
- Universidade Estadual de Santa Cruz (UESC), Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Rodovia Ilhéus-Itabuna, km 16, 45662-900, Ilhéus-BA, Brazil; CIRAD, UMR AGAP, F-34398, Montpellier, France.
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8
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Larssen E, Brede C, Hjelle A, Tjensvoll AB, Norheim KB, Bårdsen K, Jonsdottir K, Ruoff P, Omdal R, Nilsen MM. Fatigue in primary Sjögren's syndrome: A proteomic pilot study of cerebrospinal fluid. SAGE Open Med 2019; 7:2050312119850390. [PMID: 31205695 PMCID: PMC6537061 DOI: 10.1177/2050312119850390] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 04/22/2019] [Indexed: 12/16/2022] Open
Abstract
Objectives: Fatigue is a frequent and often disabling phenomenon that occurs in patients
with chronic inflammatory and immunological diseases, and the underlying
biological mechanisms are largely unknown. Because fatigue is generated in
the brain, we aimed to investigate cerebrospinal fluid and search for
molecules that participate in the pathophysiology of fatigue processes. Methods: A label-free shotgun proteomics approach was applied to analyze the
cerebrospinal fluid proteome of 20 patients with primary Sjögren’s syndrome.
Fatigue was measured with the fatigue visual analog scale. Results: A total of 828 proteins were identified and the 15 top discriminatory
proteins between patients with high and low fatigue were selected. Among
these were apolipoprotein A4, hemopexin, pigment epithelium-derived factor,
secretogranin-1, secretogranin-3, selenium-binding protein 1, and complement
factor B. Conclusion: Most of the discriminatory proteins have important roles in regulation of
innate immunity, cellular stress defense, and/or functions in the central
nervous system. These proteins and their interacting protein networks may
therefore have central roles in the generation and regulation of fatigue,
and the findings contribute with evidence to the concept of fatigue as a
biological phenomenon signaled through specific molecular pathways.
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Affiliation(s)
- Eivind Larssen
- Research Department, Stavanger University Hospital, Stavanger, Norway.,Norwegian Research Centre AS (NORCE), Stavanger, Norway
| | - Cato Brede
- Department of Medical Biochemistry, Stavanger University Hospital, Stavanger, Norway
| | - Anne Hjelle
- Research Department, Stavanger University Hospital, Stavanger, Norway
| | | | - Katrine Brække Norheim
- Clinical Immunology Unit, Department of Internal Medicine, Stavanger University Hospital, Stavanger, Norway
| | - Kjetil Bårdsen
- Research Department, Stavanger University Hospital, Stavanger, Norway
| | - Kristin Jonsdottir
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
| | - Peter Ruoff
- Centre for Organelle Research (CORE), University of Stavanger, Stavanger, Norway
| | - Roald Omdal
- Clinical Immunology Unit, Department of Internal Medicine, Stavanger University Hospital, Stavanger, Norway.,Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Mari Mæland Nilsen
- Research Department, Stavanger University Hospital, Stavanger, Norway.,Norwegian Research Centre AS (NORCE), Stavanger, Norway
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9
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Steinbrenner H, Micoogullari M, Hoang NA, Bergheim I, Klotz LO, Sies H. Selenium-binding protein 1 (SELENBP1) is a marker of mature adipocytes. Redox Biol 2018; 20:489-495. [PMID: 30469030 PMCID: PMC6249406 DOI: 10.1016/j.redox.2018.11.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/01/2018] [Accepted: 11/06/2018] [Indexed: 12/18/2022] Open
Abstract
Selenium-binding protein 1 (SELENBP1) has recently been reported to catalyse the oxidation of methanethiol, an organosulfur compound produced by gut microbiota. Two of the reaction products of methanethiol oxidation, hydrogen peroxide and hydrogen sulphide, serve as signalling molecules for cell differentiation. Indeed, colonocyte differentiation has been found to be associated with SELENBP1 induction. Here, we show that SELENBP1 is induced when 3T3-L1 preadipocytes undergo terminal differentiation and maturation to adipocytes. SELENBP1 induction succeeded the up-regulation of known marker proteins of white adipocytes and the intracellular accumulation of lipids. Immunofluorescence microscopy revealed predominant cytoplasmic localisation of SELENBP1 in 3T3-L1 adipocytes, as demonstrated by co-staining with the key lipogenic enzyme, acetyl-CoA-carboxylase (ACC), located in cytosol. In differentiating 3T3-L1 cells, the mTOR inhibitor rapamycin and the pro-inflammatory cytokine tumour necrosis factor alpha (TNF-α) likewise suppressed SELENBP1 induction, adipocyte differentiation and lipid accumulation. However, lipid accumulation per se is not linked to SELENBP1 induction, as hepatic SELENBP1 was down-regulated in high fructose-fed mice despite increased lipogenesis in the liver and development of non-alcoholic fatty liver disease (NAFLD). In conclusion, SELENBP1 is a marker of cell differentiation/maturation rather than being linked to lipogenesis/lipid accumulation.
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Affiliation(s)
- Holger Steinbrenner
- Institute of Nutritional Sciences, Nutrigenomics, Friedrich Schiller University Jena, Jena, Germany.
| | - Mustafa Micoogullari
- Institute of Biochemistry and Molecular Biology I, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Ngoc Anh Hoang
- Institute of Nutritional Sciences, Nutrigenomics, Friedrich Schiller University Jena, Jena, Germany
| | - Ina Bergheim
- Department of Nutritional Sciences, Molecular Nutritional Science, University Vienna, Vienna, Austria
| | - Lars-Oliver Klotz
- Institute of Nutritional Sciences, Nutrigenomics, Friedrich Schiller University Jena, Jena, Germany
| | - Helmut Sies
- Institute of Biochemistry and Molecular Biology I, Heinrich Heine University Düsseldorf, Düsseldorf, Germany; Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
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10
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Selenium-Binding Protein 1 in Human Health and Disease. Int J Mol Sci 2018; 19:ijms19113437. [PMID: 30400135 PMCID: PMC6274749 DOI: 10.3390/ijms19113437] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/05/2018] [Accepted: 10/31/2018] [Indexed: 12/19/2022] Open
Abstract
Selenium-binding protein 1 (SBP1) is a highly conserved protein that covalently binds selenium. SBP1 may play important roles in several fundamental physiological functions, including protein degradation, intra-Golgi transport, cell differentiation, cellular motility, redox modulation, and the metabolism of sulfur-containing molecules. SBP1 expression is often reduced in many cancer types compared to the corresponding normal tissues and low levels of SBP1 are frequently associated with poor clinical outcome. In this review, the transcriptional regulation of SBP1, the different physiological roles reported for SBP1, as well as the implications of SBP1 function in cancer and other diseases are presented.
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11
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Alshammari GM, Balakrishnan A, Chinnasamy T. Protective role of germinated mung bean against progression of non-alcoholic steatohepatitis in rats: A dietary therapy to improve fatty liver health. J Food Biochem 2018. [DOI: 10.1111/jfbc.12542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ghedeir M. Alshammari
- Adipocytes and Metabolic Disorders Lab, Food Science and Nutrition Department; King Saud University, P.O. Box 2460; Riyadh Saudi Arabia
| | - Aristatile Balakrishnan
- Adipocytes and Metabolic Disorders Lab, Food Science and Nutrition Department; King Saud University, P.O. Box 2460; Riyadh Saudi Arabia
| | - Thirunavukkarasu Chinnasamy
- Adipocytes and Metabolic Disorders Lab, Food Science and Nutrition Department; King Saud University, P.O. Box 2460; Riyadh Saudi Arabia
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12
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Ekoue DN, Zaichick S, Valyi-Nagy K, Picklo M, Lacher C, Hoskins K, Warso MA, Bonini MG, Diamond AM. Selenium levels in human breast carcinoma tissue are associated with a common polymorphism in the gene for SELENOP (Selenoprotein P). J Trace Elem Med Biol 2017; 39:227-233. [PMID: 27908419 DOI: 10.1016/j.jtemb.2016.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 11/16/2022]
Abstract
Selenium supplementation of the diets of rodents has consistently been shown to suppress mammary carcinogenesis and some, albeit not all, human epidemiological studies have indicated an inverse association between selenium and breast cancer risk. In order to better understand the role selenium plays in breast cancer, 30 samples of tumor tissue were obtained from women with breast cancer and analyzed for selenium concentration, the levels of several selenium-containing proteins and the levels of the MnSOD anti-oxidant protein. Polymorphisms within the genes for these same proteins were determined from DNA isolated from the tissue samples. There was a wide range of selenium in these tissues, ranging from 24 to 854ng/gm. The selenium levels in the tissues were correlated to the genotype of the SELENOP selenium carrier protein, but not to other proteins whose levels have been reported to be responsive to selenium availability, including GPX1, SELENOF and SBP1. There was an association between a polymorphism in the gene for MnSOD and the levels of the encoded protein. These studies were the first to examine the relationship between selenium levels, genotypes and protein levels in human tissues. Furthermore, the obtained data provide evidence for the need to obtain data about the effects of selenium in breast cancer by examining samples from that particular tissue type.
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Affiliation(s)
- Dede N Ekoue
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Sofia Zaichick
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Klara Valyi-Nagy
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Matthew Picklo
- USDA-ARS, Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA.
| | - Craig Lacher
- USDA-ARS, Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA.
| | - Kent Hoskins
- Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Michael A Warso
- Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Marcelo G Bonini
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA; Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Alan M Diamond
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
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13
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Huang HC, Yan L, Shao MY, Chen ZC. Advances in proteomic study of colorectal cancer. Shijie Huaren Xiaohua Zazhi 2016; 24:3870-3876. [DOI: 10.11569/wcjd.v24.i27.3870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer is one of the most common malignant tumors and the fourth cause of cancer-related mortality. It is not easy to be found at the early stage and therefore has a poor prognosis. Thus, new molecular biomarkers are required to improve early diagnosis and discover new effective therapeutic targets. Advances in proteomic technologies have greatly enhanced our understanding of the pathogenesis of colorectal cancer at the protein level, and improved our ability of early diagnosis and treatment. Proteomic studies of colorectal tissues, serum and cell lines have identified differentially expressed proteins, new potential diagnostic biomarkers and clinical drug targets. This article reviews the advances in proteomic study of colorectal cancer in recent years.
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14
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Gladyshev VN, Arnér ES, Berry MJ, Brigelius-Flohé R, Bruford EA, Burk RF, Carlson BA, Castellano S, Chavatte L, Conrad M, Copeland PR, Diamond AM, Driscoll DM, Ferreiro A, Flohé L, Green FR, Guigó R, Handy DE, Hatfield DL, Hesketh J, Hoffmann PR, Holmgren A, Hondal RJ, Howard MT, Huang K, Kim HY, Kim IY, Köhrle J, Krol A, Kryukov GV, Lee BJ, Lee BC, Lei XG, Liu Q, Lescure A, Lobanov AV, Loscalzo J, Maiorino M, Mariotti M, Sandeep Prabhu K, Rayman MP, Rozovsky S, Salinas G, Schmidt EE, Schomburg L, Schweizer U, Simonović M, Sunde RA, Tsuji PA, Tweedie S, Ursini F, Whanger PD, Zhang Y. Selenoprotein Gene Nomenclature. J Biol Chem 2016; 291:24036-24040. [PMID: 27645994 DOI: 10.1074/jbc.m116.756155] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Indexed: 11/06/2022] Open
Abstract
The human genome contains 25 genes coding for selenocysteine-containing proteins (selenoproteins). These proteins are involved in a variety of functions, most notably redox homeostasis. Selenoprotein enzymes with known functions are designated according to these functions: TXNRD1, TXNRD2, and TXNRD3 (thioredoxin reductases), GPX1, GPX2, GPX3, GPX4, and GPX6 (glutathione peroxidases), DIO1, DIO2, and DIO3 (iodothyronine deiodinases), MSRB1 (methionine sulfoxide reductase B1), and SEPHS2 (selenophosphate synthetase 2). Selenoproteins without known functions have traditionally been denoted by SEL or SEP symbols. However, these symbols are sometimes ambiguous and conflict with the approved nomenclature for several other genes. Therefore, there is a need to implement a rational and coherent nomenclature system for selenoprotein-encoding genes. Our solution is to use the root symbol SELENO followed by a letter. This nomenclature applies to SELENOF (selenoprotein F, the 15-kDa selenoprotein, SEP15), SELENOH (selenoprotein H, SELH, C11orf31), SELENOI (selenoprotein I, SELI, EPT1), SELENOK (selenoprotein K, SELK), SELENOM (selenoprotein M, SELM), SELENON (selenoprotein N, SEPN1, SELN), SELENOO (selenoprotein O, SELO), SELENOP (selenoprotein P, SeP, SEPP1, SELP), SELENOS (selenoprotein S, SELS, SEPS1, VIMP), SELENOT (selenoprotein T, SELT), SELENOV (selenoprotein V, SELV), and SELENOW (selenoprotein W, SELW, SEPW1). This system, approved by the HUGO Gene Nomenclature Committee, also resolves conflicting, missing, and ambiguous designations for selenoprotein genes and is applicable to selenoproteins across vertebrates.
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Affiliation(s)
- Vadim N Gladyshev
- From the Department of Medicine, Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, .,the Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142
| | - Elias S Arnér
- the Department of Medical Biochemistry and Biophysics (MBB), Division of Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Marla J Berry
- the Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii 96813
| | | | - Elspeth A Bruford
- the HUGO Gene Nomenclature Committee (HGNC), European Bioinformatics Institute-European Molecular Biology Laboratory (EMBL-EBI), Hinxton CB10 1SD, United Kingdom
| | - Raymond F Burk
- the Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Bradley A Carlson
- the Molecular Biology of Selenium Section, Mouse Cancer Genetics Program, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland 20892
| | - Sergi Castellano
- the Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany
| | - Laurent Chavatte
- the Centre International de Recherche en Infectiologie, CIRI, INSERM U1111, and CNRS/ENS UMR5308, 69007 Lyon, France
| | - Marcus Conrad
- the Helmholtz Zentrum München, Institute of Developmental Genetics, 85764 Neuherberg, Germany
| | - Paul R Copeland
- the Department of Biochemistry and Molecular Biology, Rutgers-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854
| | - Alan M Diamond
- the Department of Pathology, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Donna M Driscoll
- the Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195
| | - Ana Ferreiro
- the Pathophysiology of Striated Muscles Laboratory, Unit of Functional and Adaptive Biology (BFA), University Paris Diderot, Sorbonne Paris Cité, BFA, UMR CNRS 8251, 75250 Paris, France.,the AP-HP, Centre de Référence Maladies Neuromusculaires Paris-Est, Groupe Hospitalier Pitié-Salpêtrière, 75013 Paris, France
| | - Leopold Flohé
- the Universidad de la República, Facultad de Medicina, Departamento de Bioquímica, 11800 Montevideo, Uruguay.,the Department of Molecular Medicine, University of Padova, I-35121 Padova, Italy
| | - Fiona R Green
- the Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Roderic Guigó
- the Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain.,the Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain
| | - Diane E Handy
- the Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
| | - Dolph L Hatfield
- the Molecular Biology of Selenium Section, Mouse Cancer Genetics Program, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland 20892
| | - John Hesketh
- the Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle-upon-Tyne NE1 7RU, United Kingdom.,the Human Nutrition Research Centre, Newcastle University, Newcastle-upon-Tyne NE1 7RU, United Kingdom.,the The Medical School, Newcastle University, Newcastle-upon-Tyne NE2 4HH, United Kingdom
| | - Peter R Hoffmann
- the Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii 96813
| | - Arne Holmgren
- the Department of Medical Biochemistry and Biophysics (MBB), Division of Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Robert J Hondal
- the Department of Biochemistry, University of Vermont, Burlington, Vermont 05405
| | - Michael T Howard
- the Department of Human Genetics, University of Utah, Salt Lake City, Utah 84112
| | - Kaixun Huang
- the Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, Peoples Republic of China
| | - Hwa-Young Kim
- the Department of Biochemistry and Molecular Biology, Yeungnam University College of Medicine, Daegu 42415, South Korea
| | - Ick Young Kim
- the College of Life Sciences and Biotechnology, Korea University, Seoul 02841, South Korea
| | - Josef Köhrle
- the Institute for Experimental Endocrinology, Charité-Universitaetsmedizin Berlin, D-13353 Berlin, Germany
| | - Alain Krol
- the Architecture et Réactivité de l'ARN, Université de Strasbourg, Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire et Cellulaire, 67084 Strasbourg, France
| | | | - Byeong Jae Lee
- the School of Biological Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Byung Cheon Lee
- the College of Life Sciences and Biotechnology, Korea University, Seoul 02841, South Korea
| | - Xin Gen Lei
- the Department of Animal Science, Cornell University, Ithaca, New York 14853
| | - Qiong Liu
- the Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Science, Shenzhen University, Shenzhen, 518060, Guangdong Province, Peoples Republic of China
| | - Alain Lescure
- the Architecture et Réactivité de l'ARN, Université de Strasbourg, Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire et Cellulaire, 67084 Strasbourg, France.,the Centre National de la Recherche Scientifique, 75794 Paris, France
| | - Alexei V Lobanov
- From the Department of Medicine, Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115
| | - Joseph Loscalzo
- the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115
| | - Matilde Maiorino
- the Department of Molecular Medicine, University of Padova, I-35121 Padova, Italy
| | - Marco Mariotti
- From the Department of Medicine, Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115
| | - K Sandeep Prabhu
- the Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Margaret P Rayman
- the Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Sharon Rozovsky
- the Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Gustavo Salinas
- the Cátedra de Inmunología, Facultad de Química, Instituto de Higiene, CP11600 Montevideo, Uruguay
| | - Edward E Schmidt
- the Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717
| | - Lutz Schomburg
- the Institute for Experimental Endocrinology, Charité-Universitaetsmedizin Berlin, D-13353 Berlin, Germany
| | - Ulrich Schweizer
- the Rheinische Friedrich-Wilhelms Universität Bonn, Institut für Biochemie und Molekularbiologie, 53115 Bonn, Germany
| | - Miljan Simonović
- the Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Roger A Sunde
- the Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin 53706
| | - Petra A Tsuji
- the Department of Biological Sciences, Towson University, Towson, Maryland 21252, and
| | - Susan Tweedie
- the HUGO Gene Nomenclature Committee (HGNC), European Bioinformatics Institute-European Molecular Biology Laboratory (EMBL-EBI), Hinxton CB10 1SD, United Kingdom
| | - Fulvio Ursini
- the Department of Molecular Medicine, University of Padova, I-35121 Padova, Italy
| | - Philip D Whanger
- the Department of Environmental and Molecular Toxicology, College of Agricultural Sciences, Oregon State University, Corvallis, Oregon 97331
| | - Yan Zhang
- the Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Science, Shenzhen University, Shenzhen, 518060, Guangdong Province, Peoples Republic of China
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15
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Chen F, Chen C, Qu Y, Xiang H, Ai Q, Yang F, Tan X, Zhou Y, Jiang G, Zhang Z. Selenium-binding protein 1 in head and neck cancer is low-expression and associates with the prognosis of nasopharyngeal carcinoma. Medicine (Baltimore) 2016; 95:e4592. [PMID: 27583873 PMCID: PMC5008557 DOI: 10.1097/md.0000000000004592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Selenium-binding protein 1 (SELENBP1) expression is reduced markedly in many types of cancers and low SELENBP1 expression levels are associated with poor patient prognosis. METHODS SELENBP1 gene expression in head and neck squamous cell carcinoma (HNSCC) was analyzed with GEO dataset and characteristics of SELENBP1 expression in paraffin embedded tissue were summarized. Expression of SELENBP1 in nasopharyngeal carcinoma (NPC), laryngeal cancer, oral cancer, tonsil cancer, hypopharyngeal cancer and normal tissues were detected using immunohistochemistry, at last, 99 NPC patients were followed up more than 5 years and were analyzed the prognostic significance of SELENBP1. RESULTS Analysis of GEO dataset concluded that SELENBP1 gene expression in HNSCC was lower than that in normal tissue (P < 0.01), but there was no significant difference of SELENBP1 gene expression in different T-stage and N-stage (P > 0.05). Analysis of pathological section concluded that SELENBP1 in the majority of HNSCC is low expression and in cancer nests is lower expression than surrounding normal tissue, even associated with the malignant degree of tumor. Further study indicated the low SELENBP1 expression group of patients with NPC accompanied by poor overall survival and has significantly different comparing with the high expression group. CONCLUSION SELENBP1 expression was down-regulated in HNSCC, but has no associated with T-stage and N-stage of tumor. Low expression of SELENBP1 in patients with NPC has poor over survival, so SELENBP1 could be a novel biomarker for predicting prognosis.
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Affiliation(s)
- Fasheng Chen
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Chen Chen
- Research institute of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan
| | - Yangang Qu
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Hua Xiang
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Qingxiu Ai
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Fei Yang
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Xueping Tan
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Yi Zhou
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
| | - Guang Jiang
- Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu Province, China
| | - Zixiong Zhang
- Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province
- Correspondence: Zixiong Zhang, Department of Otolaryngology Head and Neck Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province 445000, PR China (e-mail: )
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16
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Han SG, Pant K, Bruce SW, Gairola CG. Bhas 42 cell transformation activity of cigarette smoke condensate is modulated by selenium and arsenic. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2016; 57:220-228. [PMID: 26924598 DOI: 10.1002/em.22000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 01/09/2016] [Accepted: 01/11/2016] [Indexed: 06/05/2023]
Abstract
Cigarette smoking remains a major health risk worldwide. Development of newer tobacco products requires the use of quantitative toxicological assays. Recently, v-Ha-ras transfected BALB/c3T3 (Bhas 42) cell transformation assay was established that simulates the two-stage animal tumorigenesis model and measures tumor initiating and promoting activities of chemicals. The present study was performed to assess the feasibility of using this Bhas 42 cell transformation assay to determine the initiation and promotion activities of cigarette smoke condensate (CSC) and its water soluble fraction. Further, the modulating effects of selenium and arsenic on cigarette smoke-induced cell transformation were investigated. Dimethyl sulfoxide (DMSO) and water extracts of CSC (CSC-D and CSC-W, respectively) were tested at concentrations of 2.5-40 µg mL(-1) in the initiation or promotion assay formats. Initiation protocol of the Bhas 42 assay showed a 3.5-fold increase in transformed foci at 40 µg mL(-1) of CSC-D but not CSC-W. The promotion phase of the assay yielded a robust dose response with CSC-D (2.5-40 µg mL(-1)) and CSC-W (20-40 µg mL(-1)). Preincubation of cells with selenium (100 nM) significantly reduced CSC-induced increase in cell transformation in initiation assay. Co-treatment of cells with a sub-toxic dose of arsenic significantly enhanced cell transformation activity of CSC-D in promotion assay. The results suggest a presence of both water soluble and insoluble tumor promoters in CSC, a role of oxidative stress in CSC-induced cell transformation, and usefulness of Bhas 42 cell transformation assay in comparing tobacco product toxicities and in studying the mechanisms of tobacco carcinogenesis.
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Affiliation(s)
- Sung Gu Han
- Toxicology Laboratory, Department of Food Science and Biotechnology of Animal Resources, College of Animal Bioscience and Technology, Konkuk University, Seoul, 05029, Republic of Korea
| | - Kamala Pant
- Department of Genetic Toxicology, Bioreliance Corporation, Rockville, Maryland
| | - Shannon W Bruce
- Department of Genetic Toxicology, Bioreliance Corporation, Rockville, Maryland
| | - C Gary Gairola
- Department of Genetic Toxicology, Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky
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17
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Wrobel JK, Power R, Toborek M. Biological activity of selenium: Revisited. IUBMB Life 2015; 68:97-105. [PMID: 26714931 DOI: 10.1002/iub.1466] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 12/05/2015] [Indexed: 12/22/2022]
Abstract
Selenium (Se) is an essential micronutrient that exerts multiple and complex effects on human health. Se is essential for human well-being largely due to its potent antioxidant, anti-inflammatory, and antiviral properties. The physiological functions of Se are carried out by selenoproteins, in which Se is specifically incorporated as the amino acid, selenocysteine. Importantly, both beneficial and toxic effects of Se have been reported suggesting that the mode of action of Se is strictly chemical form and concentration dependent. Additionally, there is a relatively narrow window between Se deficiency and toxicity and growing evidence suggests that Se health effects depend greatly on the baseline level of this micronutrient. Thus, Se supplementation is not an easy task and requires an individualized approach. It is essential that we continue to explore and better characterize Se containing compounds and mechanisms of action, which could be crucial for disease prevention and treatment.
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Affiliation(s)
- Jagoda K Wrobel
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ronan Power
- Nutrigenomics Research Center, Alltech, Nicholasville, KY, USA
| | - Michal Toborek
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA.,Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
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18
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A Critical Role for Cysteine 57 in the Biological Functions of Selenium Binding Protein-1. Int J Mol Sci 2015; 16:27599-608. [PMID: 26593911 PMCID: PMC4661901 DOI: 10.3390/ijms161126043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/19/2015] [Accepted: 11/10/2015] [Indexed: 12/02/2022] Open
Abstract
The concentration of selenium-binding protein1 (SBP1) is often lower in tumors than in the corresponding tissue and lower levels have been associated with poor clinical outcomes. SBP1 binds tightly selenium although what role selenium plays in its biological functions remains unknown. Previous studies indicated that cysteine 57 is the most likely candidate amino acid for selenium binding. In order to investigate the role of cysteine 57 in SBP1, this amino acid was altered to a glycine and the mutated protein was expressed in human cancer cells. The SBP1 half-life, as well as the cellular response to selenite cytotoxicity, was altered by this change. The ectopic expression of SBP1GLY also caused mitochondrial damage in HCT116 cells. Taken together, these results indicated that cysteine 57 is a critical determinant of SBP1 function and may play a significant role in mitochondrial function.
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19
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Bachiega P, Salgado JM, de Carvalho JE, Ruiz ALTG, Schwarz K, Tezotto T, Morzelle MC. Antioxidant and antiproliferative activities in different maturation stages of broccoli (Brassica oleracea Italica) biofortified with selenium. Food Chem 2015. [PMID: 26213037 DOI: 10.1016/j.foodchem.2015.06.024] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this work, three different broccoli maturity stages subjected to biofortification with selenium were evaluated for antioxidant and antiproliferative activities. Antioxidant trials have shown that the maturation stages biofortified with selenium had significantly higher amounts of phenolic compounds and antioxidant activity, especially seedlings. Although non-polar extracts of all samples show antiproliferative activity, the extract of broccoli seedlings biofortified with selenium stood out, presenting cytocidal activity for a glioma line (U251, GI50 28.5 mg L(-1)).
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Affiliation(s)
- Patricia Bachiega
- Departamento de Agroindústria, Alimentos e Nutrição, Laboratório de Bromatologia, Escola Superior de Agricultura "Luiz de Queiroz"/Universidade de São Paulo (Esalq/USP), Avenida Pádua Dias, 111, 13418-900 Piracicaba, SP, Brazil.
| | - Jocelem Mastrodi Salgado
- Departamento de Agroindústria, Alimentos e Nutrição, Laboratório de Bromatologia, Escola Superior de Agricultura "Luiz de Queiroz"/Universidade de São Paulo (Esalq/USP), Avenida Pádua Dias, 111, 13418-900 Piracicaba, SP, Brazil
| | - João Ernesto de Carvalho
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, UNICAMP, CP 6171, 13083-970 Paulínia, SP, Brazil
| | - Ana Lúcia T G Ruiz
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, UNICAMP, CP 6171, 13083-970 Paulínia, SP, Brazil
| | - Kélin Schwarz
- Centro de Energia Nuclear na Agricultura (CENA)/Universidade de São Paulo (USP), Avenida Centenário, 303, 13418900 Piracicaba, SP, Brazil
| | - Tiago Tezotto
- Departamento de Produção Vegetal, Laboratório Multiusuário em Produção Vegetal, Escola Superior de Agricultura "Luiz de Queiroz"/Universidade de São Paulo (Esalq/USP), Avenida Pádua Dias, 111, 13418-900 Piracicaba, SP, Brazil
| | - Maressa Caldeira Morzelle
- Departamento de Agroindústria, Alimentos e Nutrição, Laboratório de Bromatologia, Escola Superior de Agricultura "Luiz de Queiroz"/Universidade de São Paulo (Esalq/USP), Avenida Pádua Dias, 111, 13418-900 Piracicaba, SP, Brazil
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20
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Wojewoda M, Walczak J, Duszyński J, Szczepanowska J. Selenite activates the ATM kinase-dependent DNA repair pathway in human osteosarcoma cells with mitochondrial dysfunction. Biochem Pharmacol 2015; 95:170-6. [DOI: 10.1016/j.bcp.2015.03.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 03/30/2015] [Indexed: 01/22/2023]
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21
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The subcellular location of selenoproteins and the impact on their function. Nutrients 2015; 7:3938-48. [PMID: 26007340 PMCID: PMC4446787 DOI: 10.3390/nu7053938] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 05/14/2015] [Accepted: 05/15/2015] [Indexed: 01/31/2023] Open
Abstract
Most human selenium containing proteins contain selenium in the form of the amino acid selenocysteine, which is encoded in the corresponding mRNA as a UGA codon. Only a few non-selenocysteine containing selenoproteins are present and the nature of the association with selenium is not well understood. This review focuses on two selenocysteine-containing proteins that are members of the glutathione peroxidase family, GPx-1 and GPx-4, and the selenium-associated protein referred to as Selenium Binding Protein 1. Each of these proteins have been described to reside in two or more cellular compartments, and in the case of GPx-1 and SBP1, interact with each other. The enzymatic activity of GPx-1 and GPx-4 have been well described, but it is less clear how their cellular location impacts the health related phenotypes associated with activities, while no catalytic function is assigned to SBP1. The distribution of these proteins is presented as is the possible consequences of that compartmentalization.
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Ansong E, Ying Q, Ekoue DN, Deaton R, Hall AR, Kajdacsy-Balla A, Yang W, Gann PH, Diamond AM. Evidence that selenium binding protein 1 is a tumor suppressor in prostate cancer. PLoS One 2015; 10:e0127295. [PMID: 25993660 PMCID: PMC4436248 DOI: 10.1371/journal.pone.0127295] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 04/13/2015] [Indexed: 12/25/2022] Open
Abstract
Selenium-Binding Protein 1 (SBP1, SELENBP1, hSP56) is a selenium-associated protein shown to be at lower levels in tumors, and its lower levels are frequently predictive of a poor clinical outcome. Distinguishing indolent from aggressive prostate cancer is a major challenge in disease management. Associations between SBP1 levels, tumor grade, and disease recurrence following prostatectomy were investigated by duplex immunofluorescence imaging using a tissue microarray containing tissue from 202 prostate cancer patients who experienced biochemical (PSA) recurrence after prostatectomy and 202 matched control patients whose cancer did not recur. Samples were matched by age, ethnicity, pathological stage and Gleason grade, and images were quantified using the Vectra multispectral imaging system. Fluorescent labels were targeted for SBP1 and cytokeratins 8/18 to restrict scoring to tumor cells, and cell-by-cell quantification of SBP1 in the nucleus and cytoplasm was performed. Nuclear SBP1 levels and the nuclear to cytoplasm ratio were inversely associated with tumor grade using linear regression analysis. Following classification of samples into quartiles based on the SBP1 levels among controls, tumors in the lowest quartile were more than twice as likely to recur compared to those in any other quartile. Inducible ectopic SBP1 expression reduced the ability of HCT-116 human tumor cells to grow in soft agar, a measure of transformation, without affecting proliferation. Cells expressing SBP1 also demonstrated a robust induction in the phosphorylation of the p53 tumor suppressor at serine 15. These data indicate that loss of SBP1 may play an independent contributing role in prostate cancer progression and its levels might be useful in distinguishing indolent from aggressive disease.
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Affiliation(s)
- Emmanuel Ansong
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
- * E-mail:
| | - Qi Ying
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
- Department of Pathology, Xinxiang Medical University, Xinxiang, China
| | - Dede N. Ekoue
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Ryan Deaton
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Andrew R. Hall
- University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Andre Kajdacsy-Balla
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Wancai Yang
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Pathology, Xinxiang Medical University, Xinxiang, China
| | - Peter H. Gann
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Alan M. Diamond
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois, United States of America
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23
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Quantitative proteomic analysis reveals that anti-cancer effects of selenium-binding protein 1 in vivo are associated with metabolic pathways. PLoS One 2015; 10:e0126285. [PMID: 25974208 PMCID: PMC4431778 DOI: 10.1371/journal.pone.0126285] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 03/31/2015] [Indexed: 12/03/2022] Open
Abstract
Previous studies have shown the tumor-suppressive role of selenium-binding protein 1 (SBP1), but the underlying mechanisms are unclear. In this study, we found that induction of SBP1 showed significant inhibition of colorectal cancer cell growth and metastasis in mice. We further employed isobaric tags for relative and absolute quantitation (iTRAQ) to identify proteins that were involved in SBP1-mediated anti-cancer effects in tumor tissues. We identified 132 differentially expressed proteins, among them, 53 proteins were upregulated and 79 proteins were downregulated. Importantly, many of the differentially altered proteins were associated with lipid/glucose metabolism, which were also linked to Glycolysis, MAPK, Wnt, NF-kB, NOTCH and epithelial-mesenchymal transition (EMT) signaling pathways. These results have revealed a novel mechanism that SBP1-mediated cancer inhibition is through altering lipid/glucose metabolic signaling pathways.
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24
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Wang Y, Fang W, Huang Y, Hu F, Ying Q, Yang W, Xiong B. Reduction of selenium-binding protein 1 sensitizes cancer cells to selenite via elevating extracellular glutathione: a novel mechanism of cancer-specific cytotoxicity of selenite. Free Radic Biol Med 2015; 79:186-96. [PMID: 25445402 DOI: 10.1016/j.freeradbiomed.2014.11.015] [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: 08/25/2014] [Revised: 11/14/2014] [Accepted: 11/20/2014] [Indexed: 01/14/2023]
Abstract
Selenium is an essential trace element and has been extensively studied for preventive effects on cancers. Recent emerging evidence has also shown that selenium at supranutritional dosage has a preferential cytotoxicity in cancer cells and chemotherapeutic drug-resistant cells, but the underlying mechanisms remain largely unknown. This study was to investigate the roles of two distinct representatives of selenium-containing proteins, selenium-binding protein 1 (SBP1) and glutathione peroxidase 1 (GPX1), in selenite-mediated cancer-specific cytotoxicity. We found that there was a significantly inverse correlation between SBP1 and GPX1 protein level in human breast cancers and adjacent matched nontumor tissues (Pearson r=-0.4347, P=0.0338). Ectopic expression of GPX1 enhanced selenite cytotoxicity through down-regulation of SBP1, and SBP1 was likely to be a crucial determinant for selenite-mediated cytotoxicity. Reduction of SBP1 in cancer cells and epirubicin-resistant cells on selenite exposure resulted in a dramatic increase in the generation of hydrogen peroxide and superoxide anion, which in turn caused oxidative stress and triggered apoptosis. Furthermore, knockdown SBP1 by small interfering RNA increased selenite sensitivity by elevating extracellular glutathione (GSH), which spontaneously reacted with selenite and led to the rapid depletion of selenium (IV) in growth medium and the high-affinity uptake of selenite. In conclusion, these findings would improve our understanding of the roles of selenium-containing proteins in selenite-mediated cytotoxicity, and revealed a potent mechanism of the selective cytotoxicity of selenite in cancer cells and drug-resistant cells, in which SBP1 was likely to play an important role in modulating the extracellular microenvironment by regulating the levels of extracellular GSH.
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Affiliation(s)
- Yulei Wang
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Wuhan, Hubei, 430071, China
| | - Wenfeng Fang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, China
| | - Ying Huang
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Department of Oncology, the Fifth Hospital, Wuhan, Hubei, 430051, China
| | - Fen Hu
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Qi Ying
- Department of Pathology, University of Illinois at Chicago, IL 60612, USA
| | - Wancai Yang
- Department of Pathology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, China; Department of Pathology, University of Illinois at Chicago, IL 60612, USA.
| | - Bin Xiong
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Wuhan, Hubei, 430071, China.
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25
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Schild F, Kieffer-Jaquinod S, Palencia A, Cobessi D, Sarret G, Zubieta C, Jourdain A, Dumas R, Forge V, Testemale D, Bourguignon J, Hugouvieux V. Biochemical and biophysical characterization of the selenium-binding and reducing site in Arabidopsis thaliana homologue to mammals selenium-binding protein 1. J Biol Chem 2014; 289:31765-31776. [PMID: 25274629 PMCID: PMC4231655 DOI: 10.1074/jbc.m114.571208] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 09/17/2014] [Indexed: 12/19/2022] Open
Abstract
The function of selenium-binding protein 1 (SBP1), present in almost all organisms, has not yet been established. In mammals, SBP1 is known to bind the essential element selenium but the binding site has not been identified. In addition, the SBP family has numerous potential metal-binding sites that may play a role in detoxification pathways in plants. In Arabidopsis thaliana, AtSBP1 over-expression increases tolerance to two toxic compounds for plants, selenium and cadmium, often found as soil pollutants. For a better understanding of AtSBP1 function in detoxification mechanisms, we investigated the chelating properties of the protein toward different ligands with a focus on selenium using biochemical and biophysical techniques. Thermal shift assays together with inductively coupled plasma mass spectrometry revealed that AtSBP1 binds selenium after incubation with selenite (SeO3(2-)) with a ligand to protein molar ratio of 1:1. Isothermal titration calorimetry confirmed the 1:1 stoichiometry and revealed an unexpectedly large value of binding enthalpy suggesting a covalent bond between selenium and AtSBP1. Titration of reduced Cys residues and comparative mass spectrometry on AtSBP1 and the purified selenium-AtSBP1 complex identified Cys(21) and Cys(22) as being responsible for the binding of one selenium. These results were validated by site-directed mutagenesis. Selenium K-edge x-ray absorption near edge spectroscopy performed on the selenium-AtSBP1 complex demonstrated that AtSBP1 reduced SeO3(2-) to form a R-S-Se(II)-S-R-type complex. The capacity of AtSBP1 to bind different metals and selenium is discussed with respect to the potential function of AtSBP1 in detoxification mechanisms and selenium metabolism.
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Affiliation(s)
- Florie Schild
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Physiologie Cellulaire et Végétale, CEA, Université Grenoble Alpes, CNRS UMR5168, INRA USC1359
| | - Sylvie Kieffer-Jaquinod
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Biologie à Grande Echelle, Université Grenoble Alpes, CEA, INSERM, 17 rue des Martyrs, F-38000 Grenoble, France
| | - Andrés Palencia
- European Molecular Biology Laboratory Outstation, 71 avenue des Martyrs, F-38042 Grenoble, France and Unit for Virus Host-Cell Interactions, Université Grenoble Alpes-EMBL-CNRS, 71 avenue des Martyrs, 38042 France
| | - David Cobessi
- Université Grenoble Alpes, CEA, CNRS, Direction des Sciences du Vivant, Institut de Biologie Structurale, 6 rue Jules Horowitz, F-38044 Grenoble, France
| | - Géraldine Sarret
- Université Grenoble Alpes, CNRS & IRD, ISTerre, BP 53, F-38041 Grenoble, France
| | - Chloé Zubieta
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Physiologie Cellulaire et Végétale, CEA, Université Grenoble Alpes, CNRS UMR5168, INRA USC1359
| | - Agnès Jourdain
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Physiologie Cellulaire et Végétale, CEA, Université Grenoble Alpes, CNRS UMR5168, INRA USC1359
| | - Renaud Dumas
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Physiologie Cellulaire et Végétale, CEA, Université Grenoble Alpes, CNRS UMR5168, INRA USC1359
| | - Vincent Forge
- Laboratoire de Chimie et Biologie des Métaux, Université Grenoble Alpes, CEA, CNRS, Institut de Recherches en Technologies et Sciences pour le Vivant, 17 rue des Martyrs, F-38000 Grenoble, France, and
| | - Denis Testemale
- Université Grenoble Alpes, CNRS, Institut NEEL, 25 rue des Martyrs, F-38042 Grenoble, France
| | - Jacques Bourguignon
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Physiologie Cellulaire et Végétale, CEA, Université Grenoble Alpes, CNRS UMR5168, INRA USC1359
| | - Véronique Hugouvieux
- Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire de Physiologie Cellulaire et Végétale, CEA, Université Grenoble Alpes, CNRS UMR5168, INRA USC1359,.
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26
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Bera S, Weinberg F, Ekoue DN, Ansenberger-Fricano K, Mao M, Bonini MG, Diamond AM. Natural allelic variations in glutathione peroxidase-1 affect its subcellular localization and function. Cancer Res 2014; 74:5118-26. [PMID: 25047527 DOI: 10.1158/0008-5472.can-14-0660] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Glutathione peroxidase 1 (GPx-1) has been implicated in the etiology of several common diseases due to the association between specific allelic variations and cancer risk. The most common among these variations are the codon 198 polymorphism that results in either a leucine or proline and the number of alanine repeat codons in the coding sequence. The molecular and biologic consequences of these variations remain to be characterized. Toward achieving this goal, we have examined the cellular location of GPx-1 encoded by allelic variants by ectopically expressing these genes in MCF-7 human breast carcinoma cells that produce undetectable levels of GPx-1, thus achieving exclusive expression in the same cellular environment. A differential distribution between the cytoplasm and mitochondria was observed, with the allele expressing the leucine-198 polymorphism and 7 alanine repeats being more cytoplasmically located than the other alleles examined. To assess whether the distribution of GPx-1 between the cytoplasm and mitochondria had a biologic consequence, we engineered derivative GPx-1 proteins that were targeted to the mitochondria by the addition of a mitochondria targeting sequence and expressed these proteins in MCF-7 cells. These cells were examined for their response to oxidative stress, energy metabolism, and impact on cancer-associated signaling molecules. The results obtained indicated that both primary GPx-1 sequence and cellular location have a profound impact on cellular biology and offer feasible hypotheses about how expression of distinct GPx-1 alleles can affect cancer risk. Cancer Res; 74(18); 5118-26. ©2014 AACR.
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Affiliation(s)
- Soumen Bera
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Frank Weinberg
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Dede N Ekoue
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | | | - Mao Mao
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois. Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Marcelo G Bonini
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois. Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Alan M Diamond
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois.
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