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Yuan J, Yu Z, Zhang P, Luo K, Xu Y, Lan T, Zhang M, Chen Y, Lu Z. DDAH1 recruits peroxiredoxin 1 and sulfiredoxin 1 to preserve its activity and regulate intracellular redox homeostasis. Redox Biol 2024; 70:103080. [PMID: 38354630 PMCID: PMC10876909 DOI: 10.1016/j.redox.2024.103080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/16/2024] Open
Abstract
Growing evidence suggests that dimethylarginine dimethylaminohydrolase 1 (DDAH1), a crucial enzyme for the degradation of asymmetric dimethylarginine (ADMA), is closely related to oxidative stress during the development of multiple diseases. However, the underlying mechanism by which DDAH1 regulates the intracellular redox state remains unclear. In the present study, DDAH1 was shown to interact with peroxiredoxin 1 (PRDX1) and sulfiredoxin 1 (SRXN1), and these interactions could be enhanced by oxidative stress. In HepG2 cells, H2O2-induced downregulation of DDAH1 and accumulation of ADMA were attenuated by overexpression of PRDX1 or SRXN1 but exacerbated by knockdown of PRDX1 or SRXN1. On the other hand, DDAH1 also maintained the expression of PRDX1 and SRXN1 in H2O2-treated cells. Furthermore, global knockout of Ddah1 (Ddah1-/-) or liver-specific knockout of Ddah1 (Ddah1HKO) exacerbated, while overexpression of DDAH1 alleviated liver dysfunction, hepatic oxidative stress and downregulation of PRDX1 and SRXN1 in CCl4-treated mice. Overexpression of liver PRDX1 improved liver function, attenuated hepatic oxidative stress and DDAH1 downregulation, and diminished the differences between wild type and Ddah1-/- mice after CCl4 treatment. Collectively, our results suggest that the regulatory effect of DDAH1 on cellular redox homeostasis under stress conditions is due, at least in part, to the interaction with PRDX1 and SRXN1.
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Affiliation(s)
- Juntao Yuan
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhuoran Yu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ping Zhang
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, 55455, USA
| | - Kai Luo
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Xu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting Lan
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Min Zhang
- Department of Nephrology, Affiliated Beijing Chaoyang Hospital of Capital Medical University, Beijing, 100020, China.
| | - Yingjie Chen
- Department of Physiology & Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
| | - Zhongbing Lu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
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2
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Mazepa E, Furlanetto ALDDM, Brum H, Nakao LS, Martinez PA, Cadena SMSC, Rocha MEM, Cunha ES, Martinez GR. Effects of redox modulation on quiescin/sulfhydryl oxidase activity of melanoma cells. Mol Cell Biochem 2024; 479:511-524. [PMID: 37103678 DOI: 10.1007/s11010-023-04745-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023]
Abstract
Secreted quiescin/sulfhydryl oxidase (QSOX) is overexpressed in many tumor cell lines, including melanoma, and is usually associated with a pro-invasive phenotype. Our previous work described that B16-F10 cells enter in a quiescent state as a protective mechanism against damage generated by reactive oxygen species (ROS) during melanogenesis stimulation. Our present results show that QSOX activity was two-fold higher in cells with stimulated melanogenesis when compared to control cells. Considering that glutathione (GSH) is one of the main factor responsible for controlling redox homeostasis in cells, this work also aimed to investigate the relationship between QSOX activity, GSH levels and melanogenesis stimulation in B16-F10 murine melanoma cell line. The redox homeostasis was impaired by treating cells with GSH in excess or depleting its intracellular levels through BSO treatment. Interestingly, GSH-depleted cells without stimulation of melanogenesis kept high levels of viability, suggesting a possible adaptive mechanism of survival even under low GSH levels. They also showed lower extracellular activity of QSOX, and higher QSOX intracellular immunostaining, suggesting that this enzyme was less excreted from cells and corroborating with a diminished extracellular QSOX activity. On the other hand, cells under melanogenesis stimulation showed a lower GSH/GSSG ratio (8:1) in comparison with control (non-stimulated) cells (20:1), indicating a pro-oxidative state after stimulation. This was accompanied by decreased cell viability after GSH-depletion, no alterations in QSOX extracellular activity, but higher QSOX nucleic immunostaining. We suggest that melanogenesis stimulation and redox impairment caused by GSH-depletion enhanced the oxidative stress in these cells, contributing to additional alterations of its metabolic adaptive response.
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Affiliation(s)
- Ester Mazepa
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | | | - Hulyana Brum
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | | | | | | | - Maria Eliane Merlin Rocha
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | - Elizabeth Sousa Cunha
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | - Glaucia Regina Martinez
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil.
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Yang J, Yang S, Cai J, Chen H, Sun L, Wang J, Hou G, Gu S, Ma J, Ge J. A Transcription Factor ZNF384, Regulated by LINC00265, Activates the Expression of IFI30 to Stimulate Malignant Progression in Glioma. ACS Chem Neurosci 2024; 15:290-299. [PMID: 38141017 DOI: 10.1021/acschemneuro.3c00562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023] Open
Abstract
Glioma remains one of the most challenging primary brain malignancies to treat. Long noncoding RNAs (lncRNAs) and mRNAs (mRNAs) are implicated in regulating the malignant phenotypes of cancers including glioma. This study aimed to elucidate the functions and mechanisms of lncRNA LINC00265 and mRNA IFI30 in the pathogenesis of glioma. Quantitative real-time polymerase chain reaction (RT-qPCR) analysis revealed the upregulated expression of LINC00265 and IFI30 in glioma cells compared to normal human astrocytes. Western blot (WB) quantified the associated proteins. Glioma stemness and epithelial-to-mesenchymal transition (EMT) were assessed by aldehyde dehydrogenase 1 (ALDH1) activity, sphere formation, and WB. Mechanistic and rescue assays evaluated the LINC00265/miR-let-7d-5p/IFI30/ZNF384/IGF2BP2 axis. The results demonstrated that LINC00265 and IFI30 were highly expressed in glioma cells, promoting stemness and EMT. ZNF384 was identified as a transcription factor that upregulates IFI30. Moreover, LINC00265 elevated ZNF384 by sponging miR-let-7d-5p and recruiting IGF2BP2. In conclusion, LINC00265 and IFI30 act as oncogenes in glioma by driving stemness and EMT, underscoring their potential as therapeutic targets.
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Affiliation(s)
- Jian Yang
- Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, No.160 Pujian Road, Pudong New Area, Shanghai 200127, China
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Shenghe Yang
- Yancheng Tinghu District People's Hospital, Yancheng, Jiangsu 224002, China
| | - Jinlian Cai
- 910 Hospital of the Joint Logistics Team, Quanzhou, Fujian 362000, China
| | - Hongjin Chen
- Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200240, China
| | - Lihua Sun
- Hainan Women and Children's Medical Center, Haikou, Hainan 571199, China
| | - Jiajia Wang
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Guoqiang Hou
- Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, No.160 Pujian Road, Pudong New Area, Shanghai 200127, China
| | - Shuo Gu
- Hainan Women and Children's Medical Center, Haikou, Hainan 571199, China
| | - Jie Ma
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Jianwei Ge
- Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, No.160 Pujian Road, Pudong New Area, Shanghai 200127, China
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4
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Christie IN, Theparambil SM, Braga A, Doronin M, Hosford PS, Brazhe A, Mascarenhas A, Nizari S, Hadjihambi A, Wells JA, Hobbs A, Semyanov A, Abramov AY, Angelova PR, Gourine AV. Astrocytes produce nitric oxide via nitrite reduction in mitochondria to regulate cerebral blood flow during brain hypoxia. Cell Rep 2023; 42:113514. [PMID: 38041814 PMCID: PMC7615749 DOI: 10.1016/j.celrep.2023.113514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 10/17/2023] [Accepted: 11/14/2023] [Indexed: 12/04/2023] Open
Abstract
During hypoxia, increases in cerebral blood flow maintain brain oxygen delivery. Here, we describe a mechanism of brain oxygen sensing that mediates the dilation of intraparenchymal cerebral blood vessels in response to reductions in oxygen supply. In vitro and in vivo experiments conducted in rodent models show that during hypoxia, cortical astrocytes produce the potent vasodilator nitric oxide (NO) via nitrite reduction in mitochondria. Inhibition of mitochondrial respiration mimics, but also occludes, the effect of hypoxia on NO production in astrocytes. Astrocytes display high expression of the molybdenum-cofactor-containing mitochondrial enzyme sulfite oxidase, which can catalyze nitrite reduction in hypoxia. Replacement of molybdenum with tungsten or knockdown of sulfite oxidase expression in astrocytes blocks hypoxia-induced NO production by these glial cells and reduces the cerebrovascular response to hypoxia. These data identify astrocyte mitochondria as brain oxygen sensors that regulate cerebral blood flow during hypoxia via release of nitric oxide.
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Affiliation(s)
- Isabel N Christie
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK
| | - Shefeeq M Theparambil
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK.
| | - Alice Braga
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK
| | - Maxim Doronin
- College of Medicine, Jiaxing University, Jiaxing 314001, China
| | - Patrick S Hosford
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK
| | - Alexey Brazhe
- Department of Molecular Neurobiology, Institute of Bioorganic Chemistry, Moscow 117997, Russian Federation; Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russian Federation
| | - Alexander Mascarenhas
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK
| | - Shereen Nizari
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK; Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6BT, UK
| | - Anna Hadjihambi
- The Roger Williams Institute of Hepatology, Foundation for Liver Research, and Faculty of Life Sciences and Medicine, King's College London, London SE5 9NT, UK
| | - Jack A Wells
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6BT, UK
| | - Adrian Hobbs
- William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London EC1M 6BQ, UK
| | - Alexey Semyanov
- College of Medicine, Jiaxing University, Jiaxing 314001, China; Department of Molecular Neurobiology, Institute of Bioorganic Chemistry, Moscow 117997, Russian Federation
| | - Andrey Y Abramov
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Plamena R Angelova
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Alexander V Gourine
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London WC1E 6BT, UK.
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5
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Liu M, Tao M, Li J, Sang M, Wu X, Luo H, Zhang J. Functional of tongue sole (Cynoglossus semilaevis) gamma-interferon-inducible lysosomal thiol reductase with implications in innate immune reponse depend on CXXC active site. Dev Comp Immunol 2023; 147:104901. [PMID: 37531973 DOI: 10.1016/j.dci.2023.104901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/25/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
The enzyme gamma-interferon-inducible lysosomal thiol reductase (GILT) plays an important role in promoting the processing and presentation of major histocompatibility complex (MHC) class II-restricted antigens. It is also involved in MHC I-restricted antigens catalyzing disulfide bond reduction in fishes' adaptive immunity. The open reading frame of tongue sole (Cynoglossus semilaevis) GILT (tsGILT) gene is 771 bp long, encoding 257 amino acids, with a calculated molecular weight of 28.465 kDa and isoelectric point (pI) of 5.35. After induction with lipopolysaccharide, the expression of tsGILT mRNA was upregulated in spleen and kidney and recombinant tsGILT protein transferred to late endosomes and lysosomes in HeLa cells. The refolded tsGILT was capable of catalyzing the reduction of the interchain disulfide bonds against an IgG substrate depend on the active site CXXC motif at residues 75-78. The process of immune response to bacteria challenge needs GILT to catalyze the reduction of disulfide bond and unfolding native protein antigens, promoting their hydrolysis by proteases. Whether a single mutation or a double mutation of active site CXXC at residues75-78, the 3D structure of tsGILT protein has undergone major changes and lost its activity of catalyzing the reduction of the interchain disulfide bonds.
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Affiliation(s)
- Meiyan Liu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China; School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Mingxuan Tao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China
| | - Jianfeng Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China; Institute of Aging Research, School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou, Zhejiang Province, 311121, China
| | - Ming Sang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China; Laboratory of Cellular and Molecular Biology Jiangsu Province Institute of Traditional Chinese Medicine, Nanjing, 210028, China
| | - Xiaolong Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China
| | - Haibo Luo
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China
| | - Jiaxin Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China.
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6
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Mishra M, Jiang H, Wei Q. New insights on the differential interaction of sulfiredoxin with members of the peroxiredoxin family revealed by protein-protein docking and experimental studies. Eur J Pharmacol 2023; 954:175873. [PMID: 37353187 PMCID: PMC10426277 DOI: 10.1016/j.ejphar.2023.175873] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/11/2023] [Accepted: 06/20/2023] [Indexed: 06/25/2023]
Abstract
Sulfiredoxin (Srx) is the enzyme that restores the peroxidase activity of peroxiredoxins (Prxs) through catalyzing the reduction of hyperoxidized Prxs back to their active forms. This process involves protein-protein interaction in an enzyme-substrate binding manner. The integrity of the Srx-Prx axis contributes to the pathogenesis of various oxidative stress related human disorders including cancer, inflammation, cardiovascular and neurological diseases. The purpose of this study is to understand the structural and molecular biology of the Srx-Prx interaction, which may be of significance for prediction of target site for the novel drug-discovery. Homology modeling and protein-protein docking approaches were applied to examine the Srx-Prx interaction using online platforms including ITASSER, Phyre2, Swissmodel, AlphaFold, MZDOCK and ZDOCK. By in-silico studies, A 26-amino acid motif at the C-terminus of Prx1 was predicted to cause a steric hindrance for the kinetics of the Srx-Prx1 interaction. These predictions were tested in-vitro using purified recombinant proteins including Srx, full-length Prxs, and C-terminus deleted Prxs. We confirmed that deletion of the C-terminus of Prxs significantly enhanced its rate of association with Srx (i.e. >1000 fold increase in the ka of the Srx-Prx1 interaction) with minimal effect on the rate of dissociation (kd). Differential interaction of Srx with individual members of the Prx family was further examined in cultured cells. Taken together, these data add novel molecular and structural insights critical for the understanding of the biology of the Srx-Prx interaction that may be of value for the development of targeted therapy for human disorders.
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Affiliation(s)
- Murli Mishra
- Department of Toxicology and Cancer Biology, USA
| | - Hong Jiang
- Department of Toxicology and Cancer Biology, USA
| | - Qiou Wei
- Department of Toxicology and Cancer Biology, USA; Markey Cancer Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA.
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7
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Luo J, Tian Z, Zhou Y, Xiao Z, Park SY, Sun H, Zhuang T, Wang Y, Li P, Zhao X. CircABCA13 acts as a miR-4429 sponge to facilitate esophageal squamous cell carcinoma development by stabilizing SRXN1. Cancer Sci 2023; 114:2835-2847. [PMID: 37017121 PMCID: PMC10323080 DOI: 10.1111/cas.15807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/06/2023] Open
Abstract
Circular RNAs (circRNAs) play a pivotal role in the tumorigenesis and progression of various cancers. However, the role and mechanisms of circABCA13 in esophageal squamous cell carcinoma (ESCC) are largely unknown. Here, we reported that circABCA13, a novel circular RNA generated by back-splicing of the intron of the ABCA13 gene, is highly expressed in ESCC tumor tissues and cell lines. Upregulation of circABCA13 correlated with TNM stage and a poor prognosis in ESCC patients. While knockdown of circABCA13 in ESCC cells significantly reduced cell proliferation, migration, invasion, and anchorage-independent growth, overexpression of circABCA13 facilitated tumor growth both in vitro and in vivo. In addition, circABCA13 directly binds to miR-4429 and sequesters miR-4429 from its endogenous target, SRXN1 mRNA, which subsequently upregulates SRXN1 and promotes ESCC progression. Consistently, overexpression of miR-4429 or knockdown of SRXN1 abolished malignant behavior promotion of ESCC results from circABCA13 overexpression in vitro and in vivo. Collectively, our study uncovered the oncogenic role of circABCA13 and its mechanism in ESCC, suggesting that circABCA13 could be a potential therapeutic target and a predictive biomarker for ESCC patients.
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Affiliation(s)
- Junwen Luo
- Department of Thoracic SurgeryThe Second Hospital of Shandong UniversityJinanChina
| | - Zhongxian Tian
- Department of Thoracic SurgeryThe Second Hospital of Shandong UniversityJinanChina
- Key Laboratory of Chest CancerShandong University, The Second Hospital of Shandong UniversityJinanChina
| | - Yongjia Zhou
- Department of Thoracic SurgeryThe Second Hospital of Shandong UniversityJinanChina
| | - Zhaohua Xiao
- Department of Thoracic SurgeryThe Second Hospital of Shandong UniversityJinanChina
| | - Sun Young Park
- Department of Environmental MedicineNew York University Grossman School of MedicineNew YorkUSA
| | - Hong Sun
- Department of Environmental MedicineNew York University Grossman School of MedicineNew YorkUSA
| | - Ting Zhuang
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory MedicineXinxiang Medical UniversityXinxiangChina
| | - Yongjie Wang
- Department of Thoracic SurgeryThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Peiwei Li
- Institute of Medical SciencesThe Second Hospital of Shandong UniversityJinanChina
| | - Xiaogang Zhao
- Department of Thoracic SurgeryThe Second Hospital of Shandong UniversityJinanChina
- Key Laboratory of Chest CancerShandong University, The Second Hospital of Shandong UniversityJinanChina
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8
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Rius-Pérez S, Pérez S, Toledano MB, Sastre J. p53 drives necroptosis via downregulation of sulfiredoxin and peroxiredoxin 3. Redox Biol 2022; 56:102423. [PMID: 36029648 PMCID: PMC9428851 DOI: 10.1016/j.redox.2022.102423] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/19/2022] [Accepted: 07/25/2022] [Indexed: 11/26/2022] Open
Abstract
Mitochondrial dysfunction is a key contributor to necroptosis. We have investigated the contribution of p53, sulfiredoxin, and mitochondrial peroxiredoxin 3 to necroptosis in acute pancreatitis. Late during the course of pancreatitis, p53 was localized in mitochondria of pancreatic cells undergoing necroptosis. In mice lacking p53, necroptosis was absent, and levels of PGC-1α, peroxiredoxin 3 and sulfiredoxin were upregulated. During the early stage of pancreatitis, prior to necroptosis, sulfiredoxin was upregulated and localized into mitochondria. In mice lacking sulfiredoxin with pancreatitis, peroxiredoxin 3 was hyperoxidized, p53 localized in mitochondria, and necroptosis occurred faster; which was prevented by Mito-TEMPO. In obese mice, necroptosis occurred in pancreas and adipose tissue. The lack of p53 up-regulated sulfiredoxin and abrogated necroptosis in pancreas and adipose tissue from obese mice. We describe here a positive feedback between mitochondrial H2O2 and p53 that downregulates sulfiredoxin and peroxiredoxin 3 leading to necroptosis in inflammation and obesity.
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Affiliation(s)
- Sergio Rius-Pérez
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Spain
| | - Salvador Pérez
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Spain
| | - Michel B Toledano
- Oxidative Stress and Cancer Laboratory, Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif sur Yvette, France
| | - Juan Sastre
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Spain.
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9
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Colman DR, Labesse G, Swapna G, Stefanakis J, Montelione GT, Boyd ES, Royer CA. Structural evolution of the ancient enzyme, dissimilatory sulfite reductase. Proteins 2022; 90:1331-1345. [PMID: 35122336 PMCID: PMC9018543 DOI: 10.1002/prot.26315] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 01/29/2022] [Indexed: 07/21/2023]
Abstract
Dissimilatory sulfite reductase is an ancient enzyme that has linked the global sulfur and carbon biogeochemical cycles since at least 3.47 Gya. While much has been learned about the phylogenetic distribution and diversity of DsrAB across environmental gradients, far less is known about the structural changes that occurred to maintain DsrAB function as the enzyme accompanied diversification of sulfate/sulfite reducing organisms (SRO) into new environments. Analyses of available crystal structures of DsrAB from Archaeoglobus fulgidus and Desulfovibrio vulgaris, representing early and late evolving lineages, respectively, show that certain features of DsrAB are structurally conserved, including active siro-heme binding motifs. Whether such structural features are conserved among DsrAB recovered from varied environments, including hot spring environments that host representatives of the earliest evolving SRO lineage (e.g., MV2-Eury), is not known. To begin to overcome these gaps in our understanding of the evolution of DsrAB, structural models from MV2.Eury were generated and evolutionary sequence co-variance analyses were conducted on a curated DsrAB database. Phylogenetically diverse DsrAB harbor many conserved functional residues including those that ligate active siro-heme(s). However, evolutionary co-variance analysis of monomeric DsrAB subunits revealed several False Positive Evolutionary Couplings (FPEC) that correspond to residues that have co-evolved despite being too spatially distant in the monomeric structure to allow for direct contact. One set of FPECs corresponds to residues that form a structural path between the two active siro-heme moieties across the interface between heterodimers, suggesting the potential for allostery or electron transfer within the enzyme complex. Other FPECs correspond to structural loops and gaps that may have been selected to stabilize enzyme function in different environments. These structural bioinformatics results suggest that DsrAB has maintained allosteric communication pathways between subunits as SRO diversified into new environments. The observations outlined here provide a framework for future biochemical and structural analyses of DsrAB to examine potential allosteric control of this enzyme.
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Affiliation(s)
- Daniel R. Colman
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Gilles Labesse
- Centre de Biochimie Structurale, CNRS UMR 5048, Montpellier, France 34090
| | - G.V.T. Swapna
- Dept of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers The State University of New Jersey, Piscataway, NJ, 08854 USA
| | | | - Gaetano T. Montelione
- Department of Chemistry and Chemical Biology, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180
| | - Eric S. Boyd
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717
| | - Catherine A. Royer
- Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180
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10
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Fei H, Naqvi MAUH, Naqvi SZ, Xu L, Song X, Li X, Yan R. Trichinella spiralis: Knockdown of gamma interferon inducible lysosomal thiol reductase (GILT) results in the reduction of worm burden. PLoS Negl Trop Dis 2021; 15:e0009958. [PMID: 34847145 PMCID: PMC8631631 DOI: 10.1371/journal.pntd.0009958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 10/29/2021] [Indexed: 11/18/2022] Open
Abstract
Trichinella spiralis is mammalian skeletal muscles parasite which may cause trichinellosis in animals and humans. Gamma interferon inducible lysosomal thiol reductase (GILT) is a widespread superfamily which plays key role in processing and presentation of MHC class II restricted antigen by catalyzing disulfide bond reduction. There are no reports about GILT in T. spiralis. In present study, GILT from T. spiralis (Tsp-GILT) was cloned, analyzed by multiple-sequence alignment, and predicted by 3D structure model. Recombinant Tsp-GILT (about 46 kDa) was efficiently expressed in Escherichia coli and thiol reductase activity suggested that in acidic environment the addition of a reducing agent is needed. Soaking method was used to knockdown expression of Tsp-GILT using small interference RNA (siRNA). Immunofluorescence assay confirmed the transformation of siRNA into muscle larva (ML) and new born larva (NBL). Quantitative real time-PCR (QRT-PCR) analysis revealed that transcription level of Tsp-GILT mRNA can be up-regulated by stimulation of mouse IFN-γ and down-regulated by siRNA2 in vitro. NBLs soaked with siRNA2 showed 32.3% reduction in the generation of MLs. MLs soaked with siRNA2 showed 26.2% reduction in the next generation of MLs, but no significant effect was observed on adult worms or NBLs. These findings concluded that GILT may play important roles in the development of T. spiralis parasite. Trichinella spiralis is the most important pathogen causing trichinellosis of animals and humans. Reports in mammal animals showed that gamma interferon inducible lysosomal thiol reductase (GILT) play key roles in processing and presentation of MHC class II restricted antigens. However, there were no reports about GILT in nematode T. spiralis. In this study, GILT gene from T. spiralis (Tsp-GILT) was cloned and analyzed. The predicted 3D structure of Ts-GILT protein was found similar with that of Homo sapiens and Sus scrofa. To further evaluate the roles of Tsp-GILT in T. spiralis development, a soaking method was used to knockdown the expression of Tsp-GILT gene by siRNA. It was found that NBLs soaked with siRNA showed 32.3% reduction in the generation of MLs, and MLs soaked with siRNA showed 26.2% reduction in the next generation of MLs. Current study concluded that siRNA knockdown of gamma interferon inducible lysosomal thiol reductase from Trichinella spiralis significantly reduce the larval infectivity, development and survival.
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Affiliation(s)
- Hong Fei
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Muhammad Ali-ul-Husnain Naqvi
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Sana Zahra Naqvi
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Lixin Xu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiaokai Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiangrui Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ruofeng Yan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- * E-mail:
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11
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Chae HB, Kim MG, Kang CH, Park JH, Lee ES, Lee SU, Chi YH, Paeng SK, Bae SB, Wi SD, Yun BW, Kim WY, Yun DJ, Mackey D, Lee SY. Redox sensor QSOX1 regulates plant immunity by targeting GSNOR to modulate ROS generation. Mol Plant 2021; 14:1312-1327. [PMID: 33962063 DOI: 10.1016/j.molp.2021.05.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 02/25/2021] [Accepted: 05/03/2021] [Indexed: 05/22/2023]
Abstract
Reactive oxygen signaling regulates numerous biological processes, including stress responses in plants. Redox sensors transduce reactive oxygen signals into cellular responses. Here, we present biochemical evidence that a plant quiescin sulfhydryl oxidase homolog (QSOX1) is a redox sensor that negatively regulates plant immunity against a bacterial pathogen. The expression level of QSOX1 is inversely correlated with pathogen-induced reactive oxygen species (ROS) accumulation. Interestingly, QSOX1 both senses and regulates ROS levels by interactingn with and mediating redox regulation of S-nitrosoglutathione reductase, which, consistent with previous findings, influences reactive nitrogen-mediated regulation of ROS generation. Collectively, our data indicate that QSOX1 is a redox sensor that negatively regulates plant immunity by linking reactive oxygen and reactive nitrogen signaling to limit ROS production.
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Affiliation(s)
- Ho Byoung Chae
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Min Gab Kim
- College of Pharmacy, Research Institute of Pharmaceutical Science, Gyeongsang National University, Jinju 52828, Korea
| | - Chang Ho Kang
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Joung Hun Park
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Eun Seon Lee
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Sang-Uk Lee
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Yong Hun Chi
- Plant Propagation Team, Plant Production Division, Sejong National Arboretum, Sejong 30106, Korea
| | - Seol Ki Paeng
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Su Bin Bae
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Seong Dong Wi
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Byung-Wook Yun
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Woe-Yeon Kim
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea
| | - Dae-Jin Yun
- Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029, Korea
| | - David Mackey
- Department of Horticulture and Crop Science, Department of Molecular Genetics, and Center for Applied Plant Sciences, The Ohio State University, Columbus, OH 43210, USA.
| | - Sang Yeol Lee
- Division of Applied Life Sciences (BK21) and PMBBRC, Gyeongsang National University, Jinju 52828, Korea; College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, P.R. China.
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12
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He J, Ma M, Li D, Wang K, Wang Q, Li Q, He H, Zhou Y, Li Q, Hou X, Yang L. Sulfiredoxin-1 attenuates injury and inflammation in acute pancreatitis through the ROS/ER stress/Cathepsin B axis. Cell Death Dis 2021; 12:626. [PMID: 34140464 PMCID: PMC8211864 DOI: 10.1038/s41419-021-03923-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/09/2021] [Accepted: 06/09/2021] [Indexed: 12/22/2022]
Abstract
Acinar cell injury and the inflammatory response are critical bioprocesses of acute pancreatitis (AP). We investigated the role and underlying mechanism of sulfiredoxin-1 (Srxn1) in AP. Mild AP was induced by intraperitoneal injection of cerulein and severe AP was induced by partial duct ligation with cerulein stimulation or intraperitoneal injection of L-arginine in mice. Acinar cells, neutrophils, and macrophages were isolated. The pancreas was analyzed by histology, immunochemistry staining, and TUNEL assays, and the expression of certain proteins and RNAs, cytokine levels, trypsin activity, and reactive oxygen species (ROS) levels were determined. Srxn1 was inhibited by J14 or silenced by siRNA, and overexpression was introduced by a lentiviral vector. Transcriptomic analysis was used to explore the mechanism of Srxn1-mediated effects. We also evaluated the effect of adeno-associated virus (AAV)-mediated overexpression of Srxn1 by intraductal administration and the protection of AP. We found that Srxn1 expression was upregulated in mild AP but decreased in severe AP. Inhibition of Srxn1 increased ROS, histological score, the release of trypsin, and inflammatory responses in mice. Inhibition of Srxn1 expression promoted the production of ROS and induced apoptosis, while overexpression of Srxn1 led to the opposite results in acinar cells. Furthermore, inhibition of Srxn1 expression promoted the inflammatory response by accumulating and activating M1 phenotype macrophages and neutrophils in AP. Mechanistically, ROS-induced ER stress and activation of Cathepsin B, which converts trypsinogen to trypsin, were responsible for the Srxn1 inhibition-mediated effects on AP. Importantly, we demonstrated that AAV-mediated overexpression of Srxn1 attenuated AP in mice. Taken together, these results showed that Srxn1 is a protective target for AP by attenuating acinar injury and inflammation through the ROS/ER stress/Cathepsin B axis.
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Affiliation(s)
- Jun He
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Miaomiao Ma
- Department of Rehabilitation, The First People's Hospital of Huaihua, University of South China, Hengyang, Hunan, China
| | - Daming Li
- Department of Laboratory Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Kunpeng Wang
- Department of General Surgery, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, Zhejiang, 318000, China
| | - Qiuguo Wang
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Qiuguo Li
- Department of General Surgery, Hunan Chest Hospital, Changsha, 410006, Hunan, China
| | - Hongye He
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Yan Zhou
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Qinglong Li
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Xuyang Hou
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
| | - Leping Yang
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
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13
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Asanović I, Strandback E, Kroupova A, Pasajlic D, Meinhart A, Tsung-Pin P, Djokovic N, Anrather D, Schuetz T, Suskiewicz MJ, Sillamaa S, Köcher T, Beveridge R, Nikolic K, Schleiffer A, Jinek M, Hartl M, Clausen T, Penninger J, Macheroux P, Weitzer S, Martinez J. The oxidoreductase PYROXD1 uses NAD(P) + as an antioxidant to sustain tRNA ligase activity in pre-tRNA splicing and unfolded protein response. Mol Cell 2021; 81:2520-2532.e16. [PMID: 33930333 DOI: 10.1016/j.molcel.2021.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/09/2021] [Accepted: 04/09/2021] [Indexed: 12/19/2022]
Abstract
The tRNA ligase complex (tRNA-LC) splices precursor tRNAs (pre-tRNA), and Xbp1-mRNA during the unfolded protein response (UPR). In aerobic conditions, a cysteine residue bound to two metal ions in its ancient, catalytic subunit RTCB could make the tRNA-LC susceptible to oxidative inactivation. Here, we confirm this hypothesis and reveal a co-evolutionary association between the tRNA-LC and PYROXD1, a conserved and essential oxidoreductase. We reveal that PYROXD1 preserves the activity of the mammalian tRNA-LC in pre-tRNA splicing and UPR. PYROXD1 binds the tRNA-LC in the presence of NAD(P)H and converts RTCB-bound NAD(P)H into NAD(P)+, a typical oxidative co-enzyme. However, NAD(P)+ here acts as an antioxidant and protects the tRNA-LC from oxidative inactivation, which is dependent on copper ions. Genetic variants of PYROXD1 that cause human myopathies only partially support tRNA-LC activity. Thus, we establish the tRNA-LC as an oxidation-sensitive metalloenzyme, safeguarded by the flavoprotein PYROXD1 through an unexpected redox mechanism.
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Affiliation(s)
- Igor Asanović
- Max Perutz Labs, Medical University of Vienna, Vienna BioCenter (VBC), Dr. Bohr-Gasse 9/2, 1030 Vienna, Austria
| | - Emilia Strandback
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010 Graz, Austria; Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Alena Kroupova
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Djurdja Pasajlic
- Max Perutz Labs, Medical University of Vienna, Vienna BioCenter (VBC), Dr. Bohr-Gasse 9/2, 1030 Vienna, Austria
| | - Anton Meinhart
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC), Campus-Vienna-BioCenter 1, 1030 Vienna, Austria
| | - Pai Tsung-Pin
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Dr. Bohr-Gasse 3, 1030 Vienna, Austria; AnnJi Pharmaceutical, Taipei, Taiwan
| | - Nemanja Djokovic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Dorothea Anrather
- Max Perutz Labs, University of Vienna, Vienna BioCenter (VBC), Dr. Bohr-Gasse 9, 1030 Vienna, Austria
| | - Thomas Schuetz
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Dr. Bohr-Gasse 3, 1030 Vienna, Austria; Department of Internal Medicine III (Cardiology and Angiology), Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
| | - Marcin Józef Suskiewicz
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC), Campus-Vienna-BioCenter 1, 1030 Vienna, Austria; Sir William Dunn School of Pathology, University of Oxford, South Parks Road, OX1 3RE Oxford, UK
| | - Sirelin Sillamaa
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia
| | - Thomas Köcher
- Vienna BioCenter Core Facilities, Campus-Vienna-BioCenter 1, 1030 Vienna, Austria
| | - Rebecca Beveridge
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC), Campus-Vienna-BioCenter 1, 1030 Vienna, Austria; Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, G1 1XL Glasgow, UK
| | - Katarina Nikolic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Alexander Schleiffer
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC), Campus-Vienna-BioCenter 1, 1030 Vienna, Austria; Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Dr. Bohr-Gasse 3, 1030 Vienna, Austria
| | - Martin Jinek
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Markus Hartl
- Max Perutz Labs, University of Vienna, Vienna BioCenter (VBC), Dr. Bohr-Gasse 9, 1030 Vienna, Austria
| | - Tim Clausen
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC), Campus-Vienna-BioCenter 1, 1030 Vienna, Austria
| | - Josef Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Dr. Bohr-Gasse 3, 1030 Vienna, Austria; Department of Medical Genetics, Life Science Institute, University of British Columbia, C201 - 4500 Oak Street, V6H 3N1 Vancouver, BC, Canada
| | - Peter Macheroux
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12/2, 8010 Graz, Austria
| | - Stefan Weitzer
- Max Perutz Labs, Medical University of Vienna, Vienna BioCenter (VBC), Dr. Bohr-Gasse 9/2, 1030 Vienna, Austria.
| | - Javier Martinez
- Max Perutz Labs, Medical University of Vienna, Vienna BioCenter (VBC), Dr. Bohr-Gasse 9/2, 1030 Vienna, Austria.
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14
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Gao L, Li A, Lv Y, Huang M, Liu X, Deng H, Liu D, Zhao B, Liu B, Pang Q. Planarian gamma-interferon-inducible lysosomal thiol reductase (GILT) is required for gram-negative bacterial clearance. Dev Comp Immunol 2021; 116:103914. [PMID: 33137392 DOI: 10.1016/j.dci.2020.103914] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 10/27/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
The powerful regenerative ability of planarians has long been a concern of scientists, but recently, their efficient immune system has attracted more and more attention from researchers. Gamma-interferon-inducible lysosomal thiol reductase (GILT) is related not only to antigen presentation but also to bacteria invasions. But the systematic studies are not yet to be conducted on the relationship between bacterial infection. Our study reveals for the first time that GILT of planarian (DjGILT) plays an essential role in the clearance of Gram-negative bacteria by conducting H2O2 concentration in planarians. In animals that DjGILT was silenced, it persisted for up to 9 days before all bacteria were cleared, compared with 6 days of the control group. When infected with E. coli and V. anguillarum, the level of H2O2 was significantly increased in DjGILT-silenced planarians, and concomitantly, mRNA level of C-type lectin DjCTL, which modulates agglutination and clearance efficiency of invading bacteria, was decreased. Further study showed that the decrease of H2O2 level led to a significant increase in DjCTL transcripts. Collectively, we proposed a mechanism model for the involvement of GILT gene in bacterial elimination. We have for the first time revealed the specific mechanism of GILT in innate immune response against bacterial infection.
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Affiliation(s)
- Lili Gao
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China; Laboratory of Developmental and Evolutionary Biology, School of Life Sciences, Shandong University of Technology, Zibo, 255049, PR China
| | - Ao Li
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China
| | - Yanhua Lv
- Department of Gynecology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272000, China
| | - Mujie Huang
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China
| | - Xi Liu
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China
| | - Hongkuan Deng
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China; Laboratory of Developmental and Evolutionary Biology, School of Life Sciences, Shandong University of Technology, Zibo, 255049, PR China
| | - Dongwu Liu
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China
| | - Bosheng Zhao
- Laboratory of Developmental and Evolutionary Biology, School of Life Sciences, Shandong University of Technology, Zibo, 255049, PR China
| | - Baohua Liu
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China; Shenzhen University of Health Science Center, District Shenzhen, 518060, China.
| | - Qiuxiang Pang
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, 255049, China; Laboratory of Developmental and Evolutionary Biology, School of Life Sciences, Shandong University of Technology, Zibo, 255049, PR China.
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15
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Eisenhut P, Mebrahtu A, Moradi Barzadd M, Thalén N, Klanert G, Weinguny M, Sandegren A, Su C, Hatton D, Borth N, Rockberg J. Systematic use of synthetic 5'-UTR RNA structures to tune protein translation improves yield and quality of complex proteins in mammalian cell factories. Nucleic Acids Res 2020; 48:e119. [PMID: 33051690 PMCID: PMC7672427 DOI: 10.1093/nar/gkaa847] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/28/2020] [Accepted: 09/22/2020] [Indexed: 12/30/2022] Open
Abstract
Predictably regulating protein expression levels to improve recombinant protein production has become an important tool, but is still rarely applied to engineer mammalian cells. We therefore sought to set-up an easy-to-implement toolbox to facilitate fast and reliable regulation of protein expression in mammalian cells by introducing defined RNA hairpins, termed 'regulation elements (RgE)', in the 5'-untranslated region (UTR) to impact translation efficiency. RgEs varying in thermodynamic stability, GC-content and position were added to the 5'-UTR of a fluorescent reporter gene. Predictable translation dosage over two orders of magnitude in mammalian cell lines of hamster and human origin was confirmed by flow cytometry. Tuning heavy chain expression of an IgG with the RgEs to various levels eventually resulted in up to 3.5-fold increased titers and fewer IgG aggregates and fragments in CHO cells. Co-expression of a therapeutic Arylsulfatase-A with RgE-tuned levels of the required helper factor SUMF1 demonstrated that the maximum specific sulfatase activity was already attained at lower SUMF1 expression levels, while specific production rates steadily decreased with increasing helper expression. In summary, we show that defined 5'-UTR RNA-structures represent a valid tool to systematically tune protein expression levels in mammalian cells and eventually help to optimize recombinant protein expression.
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Affiliation(s)
- Peter Eisenhut
- ACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria
- BOKU University of Natural Resources and Life Sciences, Department of Biotechnology, Vienna 1190, Austria
| | - Aman Mebrahtu
- KTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden
| | - Mona Moradi Barzadd
- KTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden
| | - Niklas Thalén
- KTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden
| | - Gerald Klanert
- ACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria
| | - Marcus Weinguny
- ACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria
- BOKU University of Natural Resources and Life Sciences, Department of Biotechnology, Vienna 1190, Austria
| | - Anna Sandegren
- Affibody Medical AB, Scheeles väg 2, SE-171 65 Solna, Sweden
| | - Chao Su
- SOBI AB, Tomtebodavägen 23A, Stockholm, Sweden
| | - Diane Hatton
- AstraZeneca, Biopharmaceutical Development, Milstein Building, Granta Park, Cambridge CB21 6GH, UK
| | - Nicole Borth
- ACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria
- BOKU University of Natural Resources and Life Sciences, Department of Biotechnology, Vienna 1190, Austria
| | - Johan Rockberg
- KTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden
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16
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Bender D, Kaczmarek AT, Kuester S, Burlina AB, Schwarz G. Oxygen and nitrite reduction by heme-deficient sulphite oxidase in a patient with mild sulphite oxidase deficiency. J Inherit Metab Dis 2020; 43:748-757. [PMID: 31950508 DOI: 10.1002/jimd.12216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 11/12/2022]
Abstract
Isolated sulphite oxidase deficiency (iSOD) is an autosomal recessive inborn error in metabolism characterised by accumulation of sulphite, which leads to death in early infancy. Sulphite oxidase (SO) is encoded by the SUOX gene and forms a heme- and molybdenum-cofactor-dependent enzyme localised in the intermembrane space of mitochondria. Within SO, both cofactors are embedded in two separated domains, which are linked via a flexible 11 residue tether. The two-electron oxidation of sulphite to sulphate occurs at the molybdenum active site. From there, electrons are transferred via two intramolecular electron transfer steps (IETs) via the heme cofactor and to the physiologic electron acceptor cytochrome c. Previously, we reported nitrite and oxygen to serve as alternative electron acceptors at the Moco active site, thereby overcoming IET within SO. Here, we present evidence for these reactions to occur in an iSOD patient with an unusual mild disease representation. In the patient, a homozygous c.427C>A mutation within the SUOX gene leads to replacement of the highly conserved His143 to Asn. The affected His143 is one of two heme-iron-coordinating residues within SO. We demonstrate, that the H143N SO variant fails to bind heme in vivo leading to the elimination of SO-dependent cytochrome c reduction in mitochondria. We show, that sulphite oxidation at the Moco domain is unaffected in His143Asn SO variant and demonstrate that nitrite and oxygen are able to serve as electron acceptors for sulphite-derived electrons in cellulo. As result, the patient H143N SO variant retains residual sulphite oxidising activity thus ameliorating iSOD progression.
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Affiliation(s)
- Daniel Bender
- Institute for Biochemistry, Department of Chemistry, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Alexander T Kaczmarek
- Institute for Biochemistry, Department of Chemistry, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Sabina Kuester
- Institute for Biochemistry, Department of Chemistry, University of Cologne, Cologne, Germany
| | - Alberto B Burlina
- Division of Inherited Metabolic Diseases, Department of Woman's and Child's Health, University Hospital, Padova, Italy
| | - Guenter Schwarz
- Institute for Biochemistry, Department of Chemistry, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
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17
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Kushkevych I, Abdulina D, Kováč J, Dordević D, Vítězová M, Iutynska G, Rittmann SKMR. Adenosine-5'-Phosphosulfate- and Sulfite Reductases Activities of Sulfate-Reducing Bacteria from Various Environments. Biomolecules 2020; 10:E921. [PMID: 32560561 PMCID: PMC7357011 DOI: 10.3390/biom10060921] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/08/2020] [Accepted: 06/15/2020] [Indexed: 12/13/2022] Open
Abstract
A comparative study of the kinetic characteristics (specific activity, initial and maximum rate, and affinity for substrates) of key enzymes of assimilatory sulfate reduction (APS reductase and dissimilatory sulfite reductase) in cell-free extracts of sulphate-reducing bacteria (SRB) from various biotopes was performed. The material for the study represented different strains of SRB from various ecotopes. Microbiological (isolation and cultivation), biochemical (free cell extract preparation) and chemical (enzyme activity determination) methods served in defining kinetic characteristics of SRB enzymes. The determined affinity data for substrates (i.e., sulfite) were 10 times higher for SRB strains isolated from environmental (soil) ecotopes than for strains from the human intestine. The maximum rate of APS reductase reached 0.282-0.862 µmol/min×mg-1 of protein that is only 10 to 28% higher than similar initial values. The maximum rate of sulfite reductase for corrosive relevant collection strains and SRB strains isolated from heating systems were increased by 3 to 10 times. A completely different picture was found for the intestinal SRB Vmax in the strains Desulfovibrio piger Vib-7 (0.67 µmol/min × mg-1 protein) and Desulfomicrobium orale Rod-9 (0.45 µmol/min × mg-1 protein). The determinant in the cluster distribution of SRB strains is the activity of the terminal enzyme of dissimilatory sulfate reduction-sulfite reductase, but not APS reductase. The data obtained from the activity of sulfate reduction enzymes indicated the adaptive plasticity of SRB strains that is manifested in the change in enzymatic activity.
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Affiliation(s)
- Ivan Kushkevych
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic; (J.K.); (M.V.)
- Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic
| | - Daryna Abdulina
- Department of General and Soil Microbiology, D.K. Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences of Ukraine, Acad. Zabolotnogo str. 154, 03143 Kyiv, Ukraine; (D.A.); (G.I.)
| | - Jozef Kováč
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic; (J.K.); (M.V.)
| | - Dani Dordević
- Department of Plant Origin Foodstuffs Hygiene and Technology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, 61242 Brno, Czech Republic;
| | - Monika Vítězová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic; (J.K.); (M.V.)
| | - Galyna Iutynska
- Department of General and Soil Microbiology, D.K. Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences of Ukraine, Acad. Zabolotnogo str. 154, 03143 Kyiv, Ukraine; (D.A.); (G.I.)
| | - Simon K.-M. R. Rittmann
- Archaea Physiology & Biotechnology Group, Department of Functional and Evolutionary Ecology, Universität Wien, Althanstraße 14, 1090 Vienna, Austria
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Xu L, Pelosof L, Wang R, McFarland HI, Wu WW, Phue JN, Lee CT, Shen RF, Juhl H, Wu LH, Alterovitz WL, Petricon E, Rosenberg AS. NGS Evaluation of Colorectal Cancer Reveals Interferon Gamma Dependent Expression of Immune Checkpoint Genes and Identification of Novel IFNγ Induced Genes. Front Immunol 2020; 11:224. [PMID: 32265897 PMCID: PMC7103651 DOI: 10.3389/fimmu.2020.00224] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/28/2020] [Indexed: 12/28/2022] Open
Abstract
To evaluate the expression of immune checkpoint genes, their concordance with expression of IFNγ, and to identify potential novel ICP related genes (ICPRG) in colorectal cancer (CRC), the biological connectivity of six well documented ("classical") ICPs (CTLA4, PD1, PDL1, Tim3, IDO1, and LAG3) with IFNγ and its co-expressed genes was examined by NGS in 79 CRC/healthy colon tissue pairs. Identification of novel IFNγ- induced molecules with potential ICP activity was also sought. In our study, the six classical ICPs were statistically upregulated and correlated with IFNγ, CD8A, CD8B, CD4, and 180 additional immunologically related genes in IFNγ positive (FPKM > 1) tumors. By ICP co-expression analysis, we also identified three IFNγ-induced genes [(IFNγ-inducible lysosomal thiol reductase (IFI30), guanylate binding protein1 (GBP1), and guanylate binding protein 4 (GBP4)] as potential novel ICPRGs. These three genes were upregulated in tumor compared to normal tissues in IFNγ positive tumors, co-expressed with CD8A and had relatively high abundance (average FPKM = 362, 51, and 25, respectively), compared to the abundance of the 5 well-defined ICPs (Tim3, LAG3, PDL1, CTLA4, PD1; average FPKM = 10, 9, 6, 6, and 2, respectively), although IDO1 is expressed at comparably high levels (FPKM = 39). We extended our evaluation by querying the TCGA database which revealed the commonality of IFNγ dependent expression of the three potential ICPRGs in 638 CRCs, 103 skin cutaneous melanomas (SKCM), 1105 breast cancers (BC), 184 esophageal cancers (ESC), 416 stomach cancers (STC), and 501 lung squamous carcinomas (LUSC). In terms of prognosis, based on Pathology Atlas data, correlation of GBP1 and GBP4, but not IFI30, with 5-year survival rate was favorable in CRC, BC, SKCM, and STC. Thus, further studies defining the role of IFI30, GBP1, and GBP4 in CRC are warranted.
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Affiliation(s)
- Lai Xu
- Office of Oncologic Diseases, Center for Drug Evaluation and Research (CDER), FDA, Silver Spring, MD, United States
| | - Lorraine Pelosof
- Office of Oncologic Diseases, Center for Drug Evaluation and Research (CDER), FDA, Silver Spring, MD, United States
| | - Rong Wang
- Office of Biotechnology Products, Division of Biotechnology Review and Research III (DBRRIII), Office of Pharmaceutical Quality (OPQ), Center for Drug Evaluation and Research (CDER), FDA, Silver Spring, MD, United States
| | - Hugh I. McFarland
- Office of Biotechnology Products, Division of Biotechnology Review and Research III (DBRRIII), Office of Pharmaceutical Quality (OPQ), Center for Drug Evaluation and Research (CDER), FDA, Silver Spring, MD, United States
| | - Wells W. Wu
- Facility for Biotechnology Resources, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, United States
| | - Je-Nie Phue
- Facility for Biotechnology Resources, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, United States
| | - Chun-Ting Lee
- Facility for Biotechnology Resources, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, United States
| | - Rong-Fong Shen
- Facility for Biotechnology Resources, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, United States
| | | | - Lei-Hong Wu
- Division of Bioinformatics and Biostatistics (DBB), National Center for Toxicological Research (NCTR), FDA, Jefferson, AR, United States
| | - Wei-Lun Alterovitz
- HIVE, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, United States
| | - Emanuel Petricon
- Center for Applied Proteomics and Molecular Medicine (CAPMM), George Mason University, Fairfax, VA, United States
| | - Amy S. Rosenberg
- Office of Biotechnology Products, Division of Biotechnology Review and Research III (DBRRIII), Office of Pharmaceutical Quality (OPQ), Center for Drug Evaluation and Research (CDER), FDA, Silver Spring, MD, United States
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Long RT, Peng JB, Huang LL, Jiang GP, Liao YJ, Sun H, Hu YD, Liao XH. Augmenter of Liver Regeneration Alleviates Renal Hypoxia-Reoxygenation Injury by Regulating Mitochondrial Dynamics in Renal Tubular Epithelial Cells. Mol Cells 2019; 42:893-905. [PMID: 31822044 PMCID: PMC6939649 DOI: 10.14348/molcells.2019.0060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 07/14/2019] [Accepted: 11/19/2019] [Indexed: 12/20/2022] Open
Abstract
Mitochondria are highly dynamic organelles that constantly undergo fission and fusion processes that closely related to their function. Disruption of mitochondrial dynamics has been demonstrated in acute kidney injury (AKI), which could eventually result in cell injury and death. Previously, we reported that augmenter of liver regeneration (ALR) alleviates renal tubular epithelial cell injury. Here, we gained further insights into whether the renoprotective roles of ALR are associated with mitochondrial dynamics. Changes in mitochondrial dynamics were examined in experimental models of renal ischemia-reperfusion (IR). In a model of hypoxia-reoxygenation (HR) injury in vitro , dynamin-related protein 1 (Drp1) and mitochondrial fission process protein 1 (MTFP1), two key proteins of mitochondrial fission, were downregulated in the Lv-ALR + HR group. ALR overexpression additionally had an impact on phosphorylation of Drp1 Ser637 during AKI. The inner membrane fusion protein, Optic Atrophy 1 (OPA1), was significantly increased whereas levels of outer membrane fusion proteins Mitofusin-1 and -2 (Mfn1, Mfn2) were not affected in the Lv-ALR + HR group, compared with the control group. Furthermore, the mTOR/4E-BP1 signaling pathway was highly activated in the Lv-ALR + HR group. ALR overexpression led to suppression of HR-induced apoptosis. Our collective findings indicate that ALR gene transfection alleviates mitochondrial injury, possibly through inhibiting fission and promoting fusion of the mitochondrial inner membrane, both of which contribute to reduction of HK-2 cell apoptosis. Additionally, fission processes are potentially mediated by promoting tubular cell survival through activating the mTOR/4E-BP1 signaling pathway.
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Affiliation(s)
- Rui-ting Long
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Jun-bo Peng
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Li-li Huang
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Gui-ping Jiang
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Yue-juan Liao
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Hang Sun
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Yu-dong Hu
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
| | - Xiao-hui Liao
- Department of Nephrology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010,
China
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Wei H, Zhou J, Xu C, Movahedi A, Sun W, Li D, Zhuge Q. Identification and Characterization of an OSH1 Thiol Reductase from Populus Trichocarpa. Cells 2019; 9:E76. [PMID: 31892265 PMCID: PMC7017176 DOI: 10.3390/cells9010076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/24/2019] [Accepted: 12/25/2019] [Indexed: 01/11/2023] Open
Abstract
Interferon gamma-induced lysosomal thiol reductase (GILT) is abundantly expressed in antigen-presenting cells and participates in the treatment and presentation of antigens by major histocompatibility complex II. Also, GILT catalyzes the reduction of disulfide bonds, which plays an important role in cellular immunity. (1) Background: At present, the studies of GILT have mainly focused on animals. In plants, GILT homologous gene (Arabidopsis thalianaOSH1: AtOSH1) was discovered in the forward screen of mutants with compromised responses to sulphur nutrition. However, the complete properties and functions of poplar OSH1 are unclear. In addition, CdCl2 stress is swiftly engulfing the limited land resources on which humans depend, restricting agricultural production. (2) Methods: A prokaryotic expression system was used to produce recombinant PtOSH1 protein, and Western blotting was performed to identify its activity. In addition, a simplified version of the floral-dip method was used to transform A. thaliana. (3) Results: Here, we describe the identification and characterization of OSH1 from Populus trichocarpa. The deduced PtOSH1 sequence contained CQHGX2ECX2NX4C and CXXC motifs. The transcript level of PtOSH1 was increased by cadmium (Cd) treatment. In addition, recombinant PtOSH1 reduced disulfide bonds. A stress assay showed that PtOSH1-overexpressing (OE) A. thaliana lines had greater resistance to Cd than wild-type (WT) plants. Also, the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) in PtOSH1-OE plants were significantly higher than those in WT A. thaliana. These results indicate that PtOSH1 likely plays an important role in the response to Cd by regulating the reactive oxygen species (ROS)-scavenging system. (4) Conclusions: PtOSH1 catalyzes the reduction of disulfide bonds and behaves as a sulfhydryl reductase under acidic conditions. The overexpression of PtOSH1 in A. thaliana promoted root development, fresh weight, and dry weight; upregulated the expression levels of ROS scavenging-related genes; and improved the activity of antioxidant enzymes, enhancing plant tolerance to cadmium (Cd) stress. This study aimed to provide guidance that will facilitate future studies of the function of PtOSH1 in the response of plants to Cd stress.
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Affiliation(s)
- Hui Wei
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (H.W.); (C.X.); (A.M.); (W.S.); (D.L.)
| | - Jie Zhou
- Jiangsu Academy of Forestry, Nanjing 211153, China;
| | - Chen Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (H.W.); (C.X.); (A.M.); (W.S.); (D.L.)
- Jiangsu Provincial Key Construction Laboratory of Special Biomass Resource Utilization, Nanjing Key Laboratory of Quality and Safety of Agricultural Products, Nanjing Xiaozhuang University, Nanjing 211171, China
| | - Ali Movahedi
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (H.W.); (C.X.); (A.M.); (W.S.); (D.L.)
| | - Weibo Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (H.W.); (C.X.); (A.M.); (W.S.); (D.L.)
| | - Dawei Li
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (H.W.); (C.X.); (A.M.); (W.S.); (D.L.)
| | - Qiang Zhuge
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (H.W.); (C.X.); (A.M.); (W.S.); (D.L.)
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Schlotawa L, Wachs M, Bernhard O, Mayer FJ, Dierks T, Schmidt B, Radhakrishnan K. Recognition and ER Quality Control of Misfolded Formylglycine-Generating Enzyme by Protein Disulfide Isomerase. Cell Rep 2019; 24:27-37.e4. [PMID: 29972788 DOI: 10.1016/j.celrep.2018.06.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 04/12/2018] [Accepted: 06/01/2018] [Indexed: 11/19/2022] Open
Abstract
Multiple sulfatase deficiency (MSD) is a fatal, inherited lysosomal storage disorder characterized by reduced activities of all sulfatases in patients. Sulfatases require a unique post-translational modification of an active-site cysteine to formylglycine that is catalyzed by the formylglycine-generating enzyme (FGE). FGE mutations that affect intracellular protein stability determine residual enzyme activity and disease severity in MSD patients. Here, we show that protein disulfide isomerase (PDI) plays a pivotal role in the recognition and quality control of MSD-causing FGE variants. Overexpression of PDI reduces the residual activity of unstable FGE variants, whereas inhibition of PDI function rescues the residual activity of sulfatases in MSD fibroblasts. Mass spectrometric analysis of a PDI+FGE variant covalent complex allowed determination of the molecular signature for FGE recognition by PDI. Our findings highlight the role of PDI as a disease modifier in MSD, which may also be relevant for other ER-associated protein folding pathologies.
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Affiliation(s)
- Lars Schlotawa
- Department of Medical Genetics, University of Cambridge, Cambridge Institute for Medical Research, Cambridge CB2 0XY, UK
| | - Michaela Wachs
- Department of Chemistry, Biochemistry I, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Olaf Bernhard
- Department of Cellular Biochemistry, University of Göttingen, Humboldtallee 23, 37073 Göttingen, Germany
| | - Franz J Mayer
- Bruker Daltonik GmbH, Fahrenheitstraße 4, 28359 Bremen, Germany
| | - Thomas Dierks
- Department of Chemistry, Biochemistry I, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany.
| | - Bernhard Schmidt
- Department of Cellular Biochemistry, University of Göttingen, Humboldtallee 23, 37073 Göttingen, Germany.
| | - Karthikeyan Radhakrishnan
- Department of Chemistry, Biochemistry I, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany; Department of Cellular Biochemistry, University of Göttingen, Humboldtallee 23, 37073 Göttingen, Germany.
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Buetow KH, Meador LR, Menon H, Lu YK, Brill J, Cui H, Roe DJ, DiCaudo DJ, Hastings KT. High GILT Expression and an Active and Intact MHC Class II Antigen Presentation Pathway Are Associated with Improved Survival in Melanoma. J Immunol 2019; 203:2577-2587. [PMID: 31591149 PMCID: PMC6832889 DOI: 10.4049/jimmunol.1900476] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
The MHC class I Ag presentation pathway in melanoma cells has a well-established role in immune-mediated destruction of tumors. However, the clinical significance of the MHC class II Ag presentation pathway in melanoma cells is less clear. In Ag-presenting cells, IFN-γ-inducible lysosomal thiol reductase (GILT) is critical for MHC class II-restricted presentation of multiple melanoma Ags. Although not expressed in benign melanocytes of nevi, GILT and MHC class II expression is induced in malignant melanocytes in a portion of melanoma specimens. Analysis of The Cancer Genome Atlas cutaneous melanoma data set showed that high GILT mRNA expression was associated with improved overall survival. Expression of IFN-γ, TNF-α, and IL-1β was positively associated with GILT expression in melanoma specimens. These cytokines were capable of inducing GILT expression in human melanoma cells in vitro. GILT protein expression in melanocytes was induced in halo nevi, which are nevi undergoing immune-mediated regression, and is consistent with the association of GILT expression with improved survival in melanoma. To explore potential mechanisms of GILT's association with patient outcome, we investigated pathways related to GILT function and expression. In contrast to healthy skin specimens, in which the MHC class II pathway was nearly uniformly expressed and intact, there was substantial variation in the MHC class II pathway in the The Cancer Genome Atlas melanoma specimens. Both an active and intact MHC class II pathway were associated with improved overall survival in melanoma. These studies support a role for GILT and the MHC class II Ag presentation pathway in melanoma outcome.
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Affiliation(s)
- Kenneth H Buetow
- School of Life Sciences, Arizona State University, Tempe, AZ 85281
| | - Lydia R Meador
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ 85004
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | - Hari Menon
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ 85004
| | - Yih-Kuang Lu
- School of Life Sciences, Arizona State University, Tempe, AZ 85281
| | - Jacob Brill
- School of Life Sciences, Arizona State University, Tempe, AZ 85281
| | - Haiyan Cui
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | - Denise J Roe
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
- Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85724; and
| | | | - K Taraszka Hastings
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ 85004;
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
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Kim T, Li D, Terasaka T, Nicholas DA, Knight VS, Yang JJ, Lawson MA. SRXN1 Is Necessary for Resolution of GnRH-Induced Oxidative Stress and Induction of Gonadotropin Gene Expression. Endocrinology 2019; 160:2543-2555. [PMID: 31504396 PMCID: PMC6779075 DOI: 10.1210/en.2019-00283] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/15/2019] [Indexed: 12/13/2022]
Abstract
A defining characteristic of the hypothalamus-pituitary-gonad reproductive endocrine axis is the episodic secretion of the pituitary gonadotropin hormones LH and FSH by the anterior pituitary gonadotropes. Hormone secretion is dictated by pulsatile stimulation, with GnRH released by hypothalamic neurons that bind and activate the G protein-coupled GnRH receptor expressed by gonadotropes. Hormone secretion and synthesis of gonadotropins are influenced by the amplitude and frequency of GnRH stimulation; variation in either affects the proportion of LH and FSH secreted and the differential regulation of hormone subunit gene expression. Therefore, proper decoding of GnRH signals is essential for appropriate gonadotropin synthesis and secretion. The GnRH receptor robustly activates downstream signaling cascades to facilitate exocytosis and stimulate gene expression and protein synthesis. It is necessary to rapidly quench signaling to preserve sensitivity and adaptability to changing pulse patterns. Reactive oxygen species (ROS) generated by receptor-activated oxidases fulfill the role of rapid signaling intermediates that facilitate robust and transient signaling. However, excess ROS can be detrimental and, unchecked, can confuse signal interpretation. We demonstrate that sulfiredoxin (SRXN1), an ATP-dependent reductase, is essential for normal responses to GnRH receptor signaling and plays a central role in resolution of ROS induced by GnRH stimulation. SRXN1 expression is mitogen-activated protein kinase dependent, and knockdown reduces Lhb and Fshb glycoprotein hormone subunit mRNA and promoter activity. Loss of SRXN1 leads to increased basal and GnRH-stimulated ROS levels. We conclude that SRXN1 is essential for normal responses to GnRH stimulation and plays an important role in ROS management.
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Affiliation(s)
- Taeshin Kim
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
| | - Danmei Li
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
| | - Tomohiro Terasaka
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
| | - Dequina A Nicholas
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
| | - Vashti S Knight
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
| | - Joyce J Yang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
| | - Mark A Lawson
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, California
- Correspondence: Mark A. Lawson, PhD, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego Mail Code 0674, 9500 Gilman Drive, La Jolla, California 92093. E-mail:
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Zuhra K, Tomé CS, Masi L, Giardina G, Paulini G, Malagrinò F, Forte E, Vicente JB, Giuffrè A. N-Acetylcysteine Serves as Substrate of 3-Mercaptopyruvate Sulfurtransferase and Stimulates Sulfide Metabolism in Colon Cancer Cells. Cells 2019; 8:cells8080828. [PMID: 31382676 PMCID: PMC6721681 DOI: 10.3390/cells8080828] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 12/12/2022] Open
Abstract
Hydrogen sulfide (H2S) is an endogenously produced signaling molecule. The enzymes 3-mercaptopyruvate sulfurtransferase (MST), partly localized in mitochondria, and the inner mitochondrial membrane-associated sulfide:quinone oxidoreductase (SQR), besides being respectively involved in the synthesis and catabolism of H2S, generate sulfane sulfur species such as persulfides and polysulfides, currently recognized as mediating some of the H2S biological effects. Reprogramming of H2S metabolism was reported to support cellular proliferation and energy metabolism in cancer cells. As oxidative stress is a cancer hallmark and N-acetylcysteine (NAC) was recently suggested to act as an antioxidant by increasing intracellular levels of sulfane sulfur species, here we evaluated the effect of prolonged exposure to NAC on the H2S metabolism of SW480 colon cancer cells. Cells exposed to NAC for 24 h displayed increased expression and activity of MST and SQR. Furthermore, NAC was shown to: (i) persist at detectable levels inside the cells exposed to the drug for up to 24 h and (ii) sustain H2S synthesis by human MST more effectively than cysteine, as shown working on the isolated recombinant enzyme. We conclude that prolonged exposure of colon cancer cells to NAC stimulates H2S metabolism and that NAC can serve as a substrate for human MST.
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Affiliation(s)
- Karim Zuhra
- Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy
- CNR Institute of Molecular Biology and Pathology, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Catarina S Tomé
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Letizia Masi
- Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Giorgio Giardina
- Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Giulia Paulini
- Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Francesca Malagrinò
- Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Elena Forte
- Department of Biochemical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
| | - João B Vicente
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Alessandro Giuffrè
- CNR Institute of Molecular Biology and Pathology, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
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25
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Fu J, Chen S, Zhao X, Luo Z, Zou P, Liu Y. Identification and characterization of the interferon-γ-inducible lysosomal thiol reductase gene in Chinese soft-shelled turtle, Pelodiscus sinensis. Dev Comp Immunol 2019; 90:55-59. [PMID: 30172908 DOI: 10.1016/j.dci.2018.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 08/29/2018] [Accepted: 08/29/2018] [Indexed: 06/08/2023]
Abstract
The reduction of disulfide bonds of exogenous antigens is crucial to the MHC-II class antigen processing and presenting pathway and is catalysed by interferon-γ-inducible lysosomal thiol reductase (GILT). In this study, a reptile GILT gene from Chinese soft-shelled turtle, Pelodiscus sinensis (PsGILT), was identified. The full-length cDNA of PsGILT is 1631 nucleotides (nt), including a 5'-untranslated region (UTR) of 3 nt, a 3'-UTR of 860 nt and an open reading frame (ORF) of 768 nt encoding 255 amino acids (aa). The conserved features in known GILTs, such as signal peptide, CXXC motif, GILT signature sequence, N-glycosylation site and conserved cysteines, were all found in the putative PsGILT protein. Genomic analysis revealed that PsGILT kept the "7 exons and 6 introns" structure of vertebrate GILT genes. PsGILT was expressed in all examined organs/tissues and was mainly expressed in spleen and blood. Increased mRNA expression levels of PsIFN-γ and PsGILT in PBLs were observed after induction with LPS, PolyI:C and recombinant IFN-γ (rIFN-γ). We also tested the reductase activity of rGILT in vitro and found that it could reduce intact human IgG into H chains and L chains. These above results implied that PsGILT may play an important role in resisting bacterial and viral infections, like other vertebrate GILTs.
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Affiliation(s)
- Jianping Fu
- College of Life Sciences, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi Province, 330022, China
| | - Shannan Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, 430072, China
| | - Xin Zhao
- College of Life Sciences, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi Province, 330022, China
| | - Zhang Luo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, 430072, China
| | - Pengfei Zou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, 430072, China
| | - Yi Liu
- College of Life Sciences, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi Province, 330022, China.
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26
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Javitt G, Grossman‐Haham I, Alon A, Resnick E, Mutsafi Y, Ilani T, Fass D. cis-Proline mutants of quiescin sulfhydryl oxidase 1 with altered redox properties undermine extracellular matrix integrity and cell adhesion in fibroblast cultures. Protein Sci 2019; 28:228-238. [PMID: 30367560 PMCID: PMC6295897 DOI: 10.1002/pro.3537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 11/13/2022]
Abstract
The thioredoxin superfamily has expanded and diverged extensively throughout evolution such that distant members no longer show appreciable sequence homology. Nevertheless, redox-active thioredoxin-fold proteins functioning in diverse physiological contexts often share canonical amino acids near the active-site (di-)cysteine motif. Quiescin sulfhydryl oxidase 1 (QSOX1), a catalyst of disulfide bond formation secreted by fibroblasts, is a multi-domain thioredoxin superfamily enzyme with certain similarities to the protein disulfide isomerase (PDI) enzymes. Among other potential functions, QSOX1 supports extracellular matrix assembly in fibroblast cultures. We introduced mutations at a cis-proline in QSOX1 that is conserved across the thioredoxin superfamily and was previously observed to modulate redox interactions of the bacterial enzyme DsbA. The resulting QSOX1 variants showed a striking detrimental effect when added exogenously to fibroblasts: they severely disrupted the extracellular matrix and cell adhesion, even in the presence of naturally secreted, wild-type QSOX1. The specificity of this phenomenon for particular QSOX1 mutants inspired an investigation of the effects of mutation on catalytic and redox properties. For a series of QSOX1 mutants, the detrimental effect correlated with the redox potential of the first redox-active site, and an X-ray crystal structure of one of the mutants revealed the reorganization of the cis-proline loop caused by the mutations. Due to the conservation of the mutated residues across the PDI family and beyond, insights obtained in this study may be broadly applicable to a variety of physiologically important redox-active enzymes. IMPACT STATEMENT: We show that mutation of a conserved cis-proline amino acid, analogous to a mutation used to trap substrates of a bacterial disulfide catalyst, has a dramatic effect on the physiological function of the mammalian disulfide catalyst QSOX1. As the active-site region of QSOX1 is shared with the large family of protein disulfide isomerases in humans, the effects of such mutations on redox properties, enzymatic activity, and biological targeting may be relevant across the family.
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Affiliation(s)
- Gabriel Javitt
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
| | - Iris Grossman‐Haham
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
| | - Assaf Alon
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
| | - Efrat Resnick
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
| | - Yael Mutsafi
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
| | - Tal Ilani
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
| | - Deborah Fass
- Department of Structural BiologyWeizmann Institute of ScienceRehovot7610001Israel
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27
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Sung HJ, Ahn JM, Yoon YH, Na SS, Choi YJ, Kim YI, Lee SY, Lee EB, Cho S, Cho JY. Quiescin Sulfhydryl Oxidase 1 (QSOX1) Secreted by Lung Cancer Cells Promotes Cancer Metastasis. Int J Mol Sci 2018; 19:ijms19103213. [PMID: 30336636 PMCID: PMC6214099 DOI: 10.3390/ijms19103213] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 01/16/2023] Open
Abstract
As lung cancer shows the highest mortality in cancer-related death, serum biomarkers are demanded for lung cancer diagnosis and its treatment. To discover lung cancer protein biomarkers, secreted proteins from primary cultured lung cancer and adjacent normal tissues from patients were subjected to LC/MS⁻MS proteomic analysis. Quiescin sulfhydryl oxidase (QSOX1) was selected as a biomarker candidate from the enriched proteins in the secretion of lung cancer cells. QSOX1 levels were higher in 82% (51 of 62 tissues) of lung cancer tissues compared to adjacent normal tissues. Importantly, QSOX1 serum levels were significantly higher in cancer patients (p < 0.05, Area Under curve (AUC) = 0.89) when measured by multiple reaction monitoring (MRM). Higher levels of QSOX1 were also uniquely detected in lung cancer tissues, among several other solid cancers, by immunohistochemistry. QSOX1-knock-downed Lewis lung cancer (LLC) cells were less viable from oxidative stress and reduced migration and invasion. In addition, LLC mouse models with QSOX1 knock-down also proved that QSOX1 functions in promoting cancer metastasis. In conclusion, QSOX1 might be a lung cancer tissue-derived biomarker and be involved in the promotion of lung cancers, and thus can be a therapeutic target for lung cancers.
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Affiliation(s)
- Hye-Jin Sung
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
| | - Jung-Mo Ahn
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
| | - Yeon-Hee Yoon
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
| | - Sang-Su Na
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
| | - Young-Jin Choi
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
| | - Yong-In Kim
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
| | - Soo-Youn Lee
- Departments of Laboratory Medicine & Genetics and Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
| | - Eung-Bae Lee
- Department of Thoracic and Cardiovascular Surgery, Kyungpook National University Medical Center, Daegu 41944, Korea.
| | - Sukki Cho
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, Seoungnam-si, Gyeonggi-do 13620, Korea.
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
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28
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Kleiner G, Barca E, Ziosi M, Emmanuele V, Xu Y, Hidalgo-Gutierrez A, Qiao C, Tadesse S, Area-Gomez E, Lopez LC, Quinzii CM. CoQ 10 supplementation rescues nephrotic syndrome through normalization of H 2S oxidation pathway. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3708-3722. [PMID: 30251690 DOI: 10.1016/j.bbadis.2018.09.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/03/2018] [Accepted: 09/05/2018] [Indexed: 12/11/2022]
Abstract
Nephrotic syndrome (NS), a frequent chronic kidney disease in children and young adults, is the most common phenotype associated with primary coenzyme Q10 (CoQ10) deficiency and is very responsive to CoQ10 supplementation, although the pathomechanism is not clear. Here, using a mouse model of CoQ deficiency-associated NS, we show that long-term oral CoQ10 supplementation prevents kidney failure by rescuing defects of sulfides oxidation and ameliorating oxidative stress, despite only incomplete normalization of kidney CoQ levels and lack of rescue of CoQ-dependent respiratory enzymes activities. Liver and kidney lipidomics, and urine metabolomics analyses, did not show CoQ metabolites. To further demonstrate that sulfides metabolism defects cause oxidative stress in CoQ deficiency, we show that silencing of sulfide quinone oxido-reductase (SQOR) in wild-type HeLa cells leads to similar increases of reactive oxygen species (ROS) observed in HeLa cells depleted of the CoQ biosynthesis regulatory protein COQ8A. While CoQ10 supplementation of COQ8A depleted cells decreases ROS and increases SQOR protein levels, knock-down of SQOR prevents CoQ10 antioxidant effects. We conclude that kidney failure in CoQ deficiency-associated NS is caused by oxidative stress mediated by impaired sulfides oxidation and propose that CoQ supplementation does not significantly increase the kidney pool of CoQ bound to the respiratory supercomplexes, but rather enhances the free pool of CoQ, which stabilizes SQOR protein levels rescuing oxidative stress.
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Affiliation(s)
- Giulio Kleiner
- Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Emanuele Barca
- Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Marcello Ziosi
- Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Valentina Emmanuele
- Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Yimeng Xu
- Department of Pathology, Columbia University Medical Center, New York, NY, United States
| | | | - Changhong Qiao
- Irving Institute for Clinical and Translational Research, Columbia University Medical Center, New York, NY, United States
| | - Saba Tadesse
- Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Estela Area-Gomez
- Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Luis C Lopez
- Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Catarina M Quinzii
- Department of Neurology, Columbia University Medical Center, New York, NY, United States.
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29
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Erdogan AJ, Ali M, Habich M, Salscheider SL, Schu L, Petrungaro C, Thomas LW, Ashcroft M, Leichert LI, Roma LP, Riemer J. The mitochondrial oxidoreductase CHCHD4 is present in a semi-oxidized state in vivo. Redox Biol 2018; 17:200-206. [PMID: 29704824 PMCID: PMC6007816 DOI: 10.1016/j.redox.2018.03.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 03/22/2018] [Indexed: 11/30/2022] Open
Abstract
Disulfide formation in the mitochondrial intermembrane space is an essential process catalyzed by a disulfide relay machinery. In mammalian cells, the key enzyme in this machinery is the oxidoreductase CHCHD4/Mia40. Here, we determined the in vivo CHCHD4 redox state, which is the major determinant of its cellular activity. We found that under basal conditions, endogenous CHCHD4 redox state in cultured cells and mouse tissues was predominantly oxidized, however, degrees of oxidation in different tissues varied from 70% to 90% oxidized. To test whether differences in the ratio between CHCHD4 and ALR might explain tissue-specific differences in the CHCHD4 redox state, we determined the molar ratio of both proteins in different mouse tissues. Surprisingly, ALR is superstoichiometric over CHCHD4 in most tissues. However, the levels of CHCHD4 and the ratio of ALR over CHCHD4 appear to correlate only weakly with the redox state, and although ALR is present in superstoichiometric amounts, it does not lead to fully oxidized CHCHD4.
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Affiliation(s)
- Alican J Erdogan
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zuelpicher Str. 47a, 50674 Cologne, Germany
| | - Muna Ali
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zuelpicher Str. 47a, 50674 Cologne, Germany; Department of Biology, Cellular Biochemistry, University of Kaiserslautern, Erwin-Schroedinger-Str. 13, 67663 Kaiserslautern, Germany
| | - Markus Habich
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zuelpicher Str. 47a, 50674 Cologne, Germany
| | - Silja L Salscheider
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zuelpicher Str. 47a, 50674 Cologne, Germany
| | - Laura Schu
- Department of Biology, Cellular Biochemistry, University of Kaiserslautern, Erwin-Schroedinger-Str. 13, 67663 Kaiserslautern, Germany
| | - Carmelina Petrungaro
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zuelpicher Str. 47a, 50674 Cologne, Germany
| | - Luke W Thomas
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Margaret Ashcroft
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Lars I Leichert
- Institute for Biochemistry and Pathobiochemistry - Microbial Biochemistry, Ruhr-Universität Bochum, 44797 Bochum, Germany
| | - Leticia Prates Roma
- Biophysics Department, Center for Integrative Physiology and Molecular Medicine, Saarland University, 66421 Homburg, Saar, Germany
| | - Jan Riemer
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zuelpicher Str. 47a, 50674 Cologne, Germany.
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30
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Selvaggio G, Coelho PMBM, Salvador A. Mapping the phenotypic repertoire of the cytoplasmic 2-Cys peroxiredoxin - Thioredoxin system. 1. Understanding commonalities and differences among cell types. Redox Biol 2018; 15:297-315. [PMID: 29304480 PMCID: PMC5975082 DOI: 10.1016/j.redox.2017.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 12/19/2017] [Indexed: 12/16/2022] Open
Abstract
The system (PTTRS) formed by typical 2-Cys peroxiredoxins (Prx), thioredoxin (Trx), Trx reductase (TrxR), and sulfiredoxin (Srx) is central in antioxidant protection and redox signaling in the cytoplasm of eukaryotic cells. Understanding how the PTTRS integrates these functions requires tracing phenotypes to molecular properties, which is non-trivial. Here we analyze this problem based on a model that captures the PTTRS' conserved features. We have mapped the conditions that generate each distinct response to H2O2 supply rates (vsup), and estimated the parameters for thirteen human cell types and for Saccharomyces cerevisiae. The resulting composition-to-phenotype map yielded the following experimentally testable predictions. The PTTRS permits many distinct responses including ultra-sensitivity and hysteresis. However, nearly all tumor cell lines showed a similar response characterized by limited Trx-S- depletion and a substantial but self-limited gradual accumulation of hyperoxidized Prx at high vsup. This similarity ensues from strong correlations between the TrxR, Srx and Prx activities over cell lines, which contribute to maintain the Prx-SS reduction capacity in slight excess over the maximal steady state Prx-SS production. In turn, in erythrocytes, hepatocytes and HepG2 cells high vsup depletes Trx-S- and oxidizes Prx mainly to Prx-SS. In all nucleated human cells the Prx-SS reduction capacity defined a threshold separating two different regimes. At sub-threshold vsup the cytoplasmic H2O2 concentration is determined by Prx, nM-range and spatially localized, whereas at supra-threshold vsup it is determined by much less active alternative sinks and μM-range throughout the cytoplasm. The yeast shows a distinct response where the Prx Tsa1 accumulates in sulfenate form at high vsup. This is mainly due to an exceptional stability of Tsa1's sulfenate. The implications of these findings for thiol redox regulation and cell physiology are discussed. All estimates were thoroughly documented and provided, together with analytical approximations for system properties, as a resource for quantitative redox biology.
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Affiliation(s)
- Gianluca Selvaggio
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; MIT-Portugal Program Bioengineering Systems Doctoral Program, Portugal
| | - Pedro M B M Coelho
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
| | - Armindo Salvador
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CQC, Department of Chemistry, University of Coimbra, Portugal.
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31
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Abstract
Signaling by H2S is proposed to occur via persulfidation, a posttranslational modification of cysteine residues (RSH) to persulfides (RSSH). Persulfidation provides a framework for understanding the physiological and pharmacological effects of H2S. Due to the inherent instability of persulfides, their chemistry is understudied. In this review, we discuss the biologically relevant chemistry of H2S and the enzymatic routes for its production and oxidation. We cover the chemical biology of persulfides and the chemical probes for detecting them. We conclude by discussing the roles ascribed to protein persulfidation in cell signaling pathways.
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Affiliation(s)
- Milos R. Filipovic
- Univeristy of Bordeaux, IBGC, UMR 5095, F-33077 Bordeaux, France
- CNRS, IBGC, UMR 5095, F-33077 Bordeaux, France
| | - Jasmina Zivanovic
- Univeristy of Bordeaux, IBGC, UMR 5095, F-33077 Bordeaux, France
- CNRS, IBGC, UMR 5095, F-33077 Bordeaux, France
| | - Beatriz Alvarez
- Laboratorio de Enzimología, Facultad de Ciencias and Center for Free Radical and Biomedical Research, Universidad de la Republica, 11400 Montevideo, Uruguay
| | - Ruma Banerjee
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, Michigan 48109-0600, United States
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Nakamura K, Akiba J, Ogasawara S, Naito Y, Nakayama M, Abe Y, Kusukawa J, Yano H. SUOX is negatively associated with multistep carcinogenesis and proliferation in oral squamous cell carcinoma. Med Mol Morphol 2017; 51:102-110. [PMID: 29280012 DOI: 10.1007/s00795-017-0177-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 12/18/2017] [Indexed: 12/15/2022]
Abstract
Oral squamous cell carcinoma (OSCC) is the most common malignant tumor in the head and neck region. The aim of this study was to identify the key molecules and to elucidate the molecular mechanisms of OSCC carcinogenesis through a microarray analysis of RNA extracted from normal epithelium, dysplasia, and squamous cell carcinoma components. Out of molecules that showed changes in gene expression in the microarray analysis, we focused on Sulfite oxidase (SUOX), which correlated significantly with carcinogenic process and exhibited a stepwise decrease in expression. The expression of SUOX was evaluated in detail at the protein level using samples from 58 patients with cancer of the tongue, and correlating clinicopathological factors were also comprehensively examined. SUOX expression declined significantly from normal epithelium to dysplasia to squamous cell carcinoma components in line with carcinogenic process. With regard to squamous cell carcinoma, SUOX expression was significantly lower when T classification was high. Our findings indicated that SUOX is negatively associated with the progression and proliferation of tongue cancer, and suggest that SUOX may be a key molecule in tongue tumors.
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Affiliation(s)
- Ken Nakamura
- Department of Pathology, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
- Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Japan
| | - Jun Akiba
- Department of Pathology, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan.
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan.
| | - Sachiko Ogasawara
- Department of Pathology, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
| | - Yoshiki Naito
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - Masamichi Nakayama
- Department of Pathology, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
| | - Yushi Abe
- Department of Pathology, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
- Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Japan
| | - Jingo Kusukawa
- Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Japan
| | - Hirohisa Yano
- Department of Pathology, Kurume University School of Medicine, 67 Asahimachi, Kurume, 830-0011, Japan
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Kurmanbayeva A, Bekturova A, Srivastava S, Soltabayeva A, Asatryan A, Ventura Y, Khan MS, Salazar O, Fedoroff N, Sagi M. Higher Novel L-Cys Degradation Activity Results in Lower Organic-S and Biomass in Sarcocornia than the Related Saltwort, Salicornia. Plant Physiol 2017; 175:272-289. [PMID: 28743765 PMCID: PMC5580768 DOI: 10.1104/pp.17.00780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 07/22/2017] [Indexed: 05/08/2023]
Abstract
Salicornia and Sarcocornia are almost identical halophytes whose edible succulent shoots hold promise for commercial production in saline water. Enhanced sulfur nutrition may be beneficial to crops naturally grown on high sulfate. However, little is known about sulfate nutrition in halophytes. Here we show that Salicornia europaea (ecotype RN) exhibits a significant increase in biomass and organic-S accumulation in response to supplemental sulfate, whereas Sarcocornia fruticosa (ecotype VM) does not, instead exhibiting increased sulfate accumulation. We investigated the role of two pathways on organic-S and biomass accumulation in Salicornia and Sarcoconia: the sulfate reductive pathway that generates Cys and l-Cys desulfhydrase that degrades Cys to H2S, NH3, and pyruvate. The major function of O-acetyl-Ser-(thiol) lyase (OAS-TL; EC 2.5.1.47) is the formation of l-Cys, but our study shows that the OAS-TL A and OAS-TL B of both halophytes are enzymes that also degrade l-Cys to H2S. This activity was significantly higher in Sarcocornia than in Salicornia, especially upon sulfate supplementation. The activity of the sulfate reductive pathway key enzyme, adenosine 5'-phosphosulfate reductase (APR, EC 1.8.99.2), was significantly higher in Salicornia than in Sarcocornia These results suggest that the low organic-S level in Sarcocornia is the result of high l-Cys degradation rate by OAS-TLs, whereas the greater organic-S and biomass accumulation in Salicornia is the result of higher APR activity and low l-Cys degradation rate, resulting in higher net Cys biosynthesis. These results present an initial road map for halophyte growers to attain better growth rates and nutritional value of Salicornia and Sarcocornia.
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Affiliation(s)
- Assylay Kurmanbayeva
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Aizat Bekturova
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Sudhakar Srivastava
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Aigerim Soltabayeva
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Armine Asatryan
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Yvonne Ventura
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Mohammad Suhail Khan
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia
| | - Octavio Salazar
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia
| | - Nina Fedoroff
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia
- Evan Pugh Professor Emerita, Penn State University, State College, Pennsylvania
| | - Moshe Sagi
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
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Lan K, Zhao Y, Fan Y, Ma B, Yang S, Liu Q, Linghu H, Wang H. Sulfiredoxin May Promote Cervical Cancer Metastasis via Wnt/β-Catenin Signaling Pathway. Int J Mol Sci 2017; 18:ijms18050917. [PMID: 28448437 PMCID: PMC5454830 DOI: 10.3390/ijms18050917] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 04/17/2017] [Accepted: 04/22/2017] [Indexed: 01/09/2023] Open
Abstract
The abnormal elevation of sulfiredoxin (Srx/SRXN1)-an antioxidant enzyme whose main function is to protect against oxidative stress-has been shown to be closely correlated with the progression of several types of cancer, including human cervical cancer. However, the molecular mechanism by which Srx promotes tumor progression, especially cancer metastasis in cervical cancer, has not been elucidated. Here, we show that Srx expression gradually increases during the progression of human cervical cancer and its expression level is closely correlated with lymph node metastasis. Our study also reveals a significant positive correlation between the expression of Srx and β-catenin in cervical cancer tissues. Loss-of-function studies demonstrate that Srx knockdown using a lentiviral vector-mediated specific shRNA decreases the migration and invasion capacity in HeLa (human papilloma virus 18 type cervical cancer cell line) and SiHa SiHa (cervical squamous cancer cell line). Notably, the exact opposite effects were observed in gain-of-function experiments in C-33A cells. Mechanistically, downregulation or upregulation of Srx leads to an altered expression of proteins associated with the Wnt/β-catenin signaling pathway. Furthermore, blockage of the Wnt/β-catenin signaling pathway contributed to attenuated Srx expression and resulted in significant inhibition of cell migration and invasion in cervical cancer cell lines. Combined, Srx might be an oncoprotein in cervical cancer, playing critical roles in activating the Wnt/β-catenin signaling pathway; it may therefore be a therapeutic target for cervical cancer.
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Affiliation(s)
- Kangyun Lan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Yuni Zhao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Yue Fan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Binbin Ma
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Shanshan Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Qin Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Hua Linghu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Hui Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Schanzenbach C, Schmidt FC, Breckner P, Teese MG, Langosch D. Identifying ionic interactions within a membrane using BLaTM, a genetic tool to measure homo- and heterotypic transmembrane helix-helix interactions. Sci Rep 2017; 7:43476. [PMID: 28266525 PMCID: PMC5339904 DOI: 10.1038/srep43476] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/23/2017] [Indexed: 12/15/2022] Open
Abstract
The assembly of integral membrane protein complexes is frequently supported by transmembrane domain (TMD) interactions. Here, we present the BLaTM assay that measures homotypic as well as heterotypic TMD-TMD interactions in a bacterial membrane. The system is based on complementation of β-lactamase fragments genetically fused to interacting TMDs, which confers ampicillin resistance to expressing cells. We validated BLaTM by showing that the assay faithfully reports known sequence-specific interactions of both types. In a practical application, we used BLaTM to screen a focussed combinatorial library for heterotypic interactions driven by electrostatic forces. The results reveal novel patterns of ionizable amino acids within the isolated TMD pairs. Those patterns indicate that formation of heterotypic TMD pairs is most efficiently supported by closely spaced ionizable residues of opposite charge. In addition, TMD heteromerization can apparently be driven by hydrogen bonding between basic or between acidic residues.
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Affiliation(s)
- Christoph Schanzenbach
- Munich Center For Integrated Protein Science (CIPSM) at the Lehrstuhl für Chemie der Biopolymere, Technische Universität München, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Fabian C. Schmidt
- Munich Center For Integrated Protein Science (CIPSM) at the Lehrstuhl für Chemie der Biopolymere, Technische Universität München, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Patrick Breckner
- Munich Center For Integrated Protein Science (CIPSM) at the Lehrstuhl für Chemie der Biopolymere, Technische Universität München, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Mark G. Teese
- Munich Center For Integrated Protein Science (CIPSM) at the Lehrstuhl für Chemie der Biopolymere, Technische Universität München, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Dieter Langosch
- Munich Center For Integrated Protein Science (CIPSM) at the Lehrstuhl für Chemie der Biopolymere, Technische Universität München, Weihenstephaner Berg 3, 85354 Freising, Germany
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Lan K, Chen X, Liu Q, Fan Y, Zhao Y, Wang H. [Highly expressed sulfiredoxin and β-catenin are associated with malignancy of cervical squamous cell carcinoma]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2017; 33:376-379. [PMID: 28274319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective To investigate the expressions of sulfiredoxin (Srx) and β-catenin in human cervical squamous cell carcinoma (CSCC) and their clinical significance. Methods Immunohistochemistry was used to detect the expressions of Srx and β-catenin in human cervical specimens, including normal cervical squamous cell epithelium tissues (NC), cervical intraepithelial neoplasia tissues (CIN), and CSCC. The correlation between Srx expression and β-catenin expression and the relationship of the two proteins to clinical the pathological features of cervical cancer were analyzed. Results The expression of Srx in CIN and CSCC was significantly higher than that in NC. In addition, Srx and β-catenin expressions were positively correlated to CSCC tissues. Furthermore, the up-regulated expression of Srx was significantly associated with lymph node metastasis, infiltration of vessels, and the depth of cancer invasion. However, its expression was not associated with age, tumor size, degree of differentiation, and International Federation of Gynecology and Obstetrics (FIGO) grade. Finally, the overexpression of β-catenin was significantly correlated with lymph node metastasis, degree of differentiation, and FIGO grade. However, β-catenin expression was not correlated with age, tumor size, and the depth of cancer invasion. Conclusion Srx and β-catenin are highly expressed in CSCC and associated with malignancy.
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Affiliation(s)
- Kangyun Lan
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiaoyan Chen
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qin Liu
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yue Fan
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yuni Zhao
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hui Wang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China. *Corresponding author, E-mail:
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Shi H, Han W, Shi H, Ren F, Chen D, Chen Y, Duan Z. Augmenter of liver regeneration protects against carbon tetrachloride-induced liver injury by promoting autophagy in mice. Oncotarget 2017; 8:12637-12648. [PMID: 28061452 PMCID: PMC5355041 DOI: 10.18632/oncotarget.14478] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 12/15/2016] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Augmenter of liver regeneration (ALR) exerts strong hepatoprotective properties in various animal models of liver injury, but its protective mechanisms have not yet been explored. Autophagy is a recently recognized rudimentary cellular response to inflammation and injury. The aim of this study was to test the hypothesis that ALR may protect against acute liver injury through the autophagic pathway. METHODS The level and role of ALR in liver injury were studied in a mouse model of acute liver injury induced by carbon tetrachloride (CCl4). The effect of ALR on autophagy was analyzed in vitro and in vivo. After autophagy was inhibited by 3-methyladenine (3-MA), apoptosis and proliferation were detected in the mouse model with acute liver injury. The ALR and autophagic levels were measured in patients with liver cirrhosis (LC) and acute liver failure (ALF), respectively. RESULTS During the progression of acute liver injury, the ALR levels increased slightly in early stage and significantly decreased in late stage in mice. Treatment with an ALR plasmid via tail vein injection protected mice against acute liver injury. The protective effect of ALR relied on the induction of autophagy, which was supported by the following evidence: (1) ALR overexpression directly induced autophagy flux in vitro and in vivo; and (2) ALR treatment suppressed apoptosis and promoted proliferation in mice exposed to CCl4, but the inhibition of autophagy reversed these effects. More importantly, the ALR levels decreased in patients with LC and ALF compared with normal controls. CONCLUSION We demonstrated that ALR ameliorated liver injury via an autophagic mechanism, which indicates a potential therapeutic application for liver injury.
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Affiliation(s)
- Hongbo Shi
- Beijing Youan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Hepatology, Capital Medical University, Beijing, China
| | - Weijia Han
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Honglin Shi
- Beijing Youan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Hepatology, Capital Medical University, Beijing, China
| | - Feng Ren
- Beijing Youan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Hepatology, Capital Medical University, Beijing, China
| | - Dexi Chen
- Beijing Youan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Hepatology, Capital Medical University, Beijing, China
| | - Yu Chen
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zhongping Duan
- Beijing Youan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Hepatology, Capital Medical University, Beijing, China
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Endesfelder S, Weichelt U, Strauß E, Schlör A, Sifringer M, Scheuer T, Bührer C, Schmitz T. Neuroprotection by Caffeine in Hyperoxia-Induced Neonatal Brain Injury. Int J Mol Sci 2017; 18:ijms18010187. [PMID: 28106777 PMCID: PMC5297819 DOI: 10.3390/ijms18010187] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/04/2017] [Accepted: 01/12/2017] [Indexed: 12/11/2022] Open
Abstract
Sequelae of prematurity triggered by oxidative stress and free radical-mediated tissue damage have coined the term “oxygen radical disease of prematurity”. Caffeine, a potent free radical scavenger and adenosine receptor antagonist, reduces rates of brain damage in preterm infants. In the present study, we investigated the effects of caffeine on oxidative stress markers, anti-oxidative response, inflammation, redox-sensitive transcription factors, apoptosis, and extracellular matrix following the induction of hyperoxia in neonatal rats. The brain of a rat pups at postnatal Day 6 (P6) corresponds to that of a human fetal brain at 28–32 weeks gestation and the neonatal rat is an ideal model in which to investigate effects of oxidative stress and neuroprotection of caffeine on the developing brain. Six-day-old Wistar rats were pre-treated with caffeine and exposed to 80% oxygen for 24 and 48 h. Caffeine reduced oxidative stress marker (heme oxygenase-1, lipid peroxidation, hydrogen peroxide, and glutamate-cysteine ligase catalytic subunit (GCLC)), promoted anti-oxidative response (superoxide dismutase, peroxiredoxin 1, and sulfiredoxin 1), down-regulated pro-inflammatory cytokines, modulated redox-sensitive transcription factor expression (Nrf2/Keap1, and NFκB), reduced pro-apoptotic effectors (poly (ADP-ribose) polymerase-1 (PARP-1), apoptosis inducing factor (AIF), and caspase-3), and diminished extracellular matrix degeneration (matrix metalloproteinases (MMP) 2, and inhibitor of metalloproteinase (TIMP) 1/2). Our study affirms that caffeine is a pleiotropic neuroprotective drug in the developing brain due to its anti-oxidant, anti-inflammatory, and anti-apoptotic properties.
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Affiliation(s)
- Stefanie Endesfelder
- Department of Neonatology, Charité, Universitätsmedizin Berlin, 13353 Berlin, Germany.
| | - Ulrike Weichelt
- Department of Physiology, Charité, Universitätsmedizin Berlin, 10117 Berlin, Germany.
| | - Evelyn Strauß
- Department of Neonatology, Charité, Universitätsmedizin Berlin, 13353 Berlin, Germany.
| | - Anja Schlör
- Department of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany.
| | - Marco Sifringer
- Department of Anesthesiology and Intensive Care Medicine, Charité, Universitätsmedizin Berlin, 13353 Berlin, Germany.
| | - Till Scheuer
- Department of Neonatology, Charité, Universitätsmedizin Berlin, 13353 Berlin, Germany.
| | - Christoph Bührer
- Department of Neonatology, Charité, Universitätsmedizin Berlin, 13353 Berlin, Germany.
| | - Thomas Schmitz
- Department of Neonatology, Charité, Universitätsmedizin Berlin, 13353 Berlin, Germany.
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Kinoshita M, Kim JY, Lin Y, Markova N, Hase T, Lee YH. Biochemical and Biophysical Methods to Examine the Effects of Site-Directed Mutagenesis on Enzymatic Activities and Interprotein Interactions. Methods Mol Biol 2017; 1498:439-460. [PMID: 27709594 DOI: 10.1007/978-1-4939-6472-7_30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mutations in proteins often affect interactions with partner molecules, sequentially changing their activities and functions. In order to examine mutagenic effects, we herein describe practical and detailed protocols for enzymatic activity assays using ferredoxin (Fd)-NADP+ reductase (FNR) and sulfite reductase (SiR), which are electron-transferring enzymes for the Calvin cycle and sulfur assimilation in various organisms, respectively. Methods for isothermal titration calorimetry and nuclear magnetic resonance spectroscopy, which are very useful thermodynamically and mechanically for investigating the effects of mutations on intermolecular interactions, are also described with practical examples of the Fd-FNR binding system.
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Affiliation(s)
- Misaki Kinoshita
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka, 565-0871, Japan
| | - Ju Yaen Kim
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka, 565-0871, Japan
| | - Yuxi Lin
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka, 565-0871, Japan
| | - Natalia Markova
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka, 565-0871, Japan
| | - Toshiharu Hase
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka, 565-0871, Japan
| | - Young-Ho Lee
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka, 565-0871, Japan.
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Kim J, Lee GR, Kim H, Jo YJ, Hong SE, Lee J, Lee HI, Jang YS, Oh SH, Lee HJ, Lee JS, Jeong W. Effective killing of cancer cells and regression of tumor growth by K27 targeting sulfiredoxin. Free Radic Biol Med 2016; 101:384-392. [PMID: 27825965 DOI: 10.1016/j.freeradbiomed.2016.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 01/23/2023]
Abstract
Cancer cells have been suggested to be more susceptible to oxidative damages and highly dependent on antioxidant capacity in comparison with normal cells, and thus targeting antioxidant enzymes has been a strategy for effective cancer treatment. Sulfiredoxin (Srx) is an enzyme that catalyzes the reduction of sulfinylated peroxiredoxins and thereby reactivates them. In this study we developed a Srx inhibitor, K27 (N-[7-chloro-2-(4-fluorophenyl)-4-quinazolinyl]-N-(2-phenylethyl)-β-alanine), and showed that it induces the accumulation of sulfinylated peroxiredoxins and oxidative stress, which leads to mitochondrial damage and apoptotic death of cancer cells. The effects of K27 were significantly reversed by ectopic expression of Srx or antioxidant N-acetyl cysteine. In addition, K27 led to preferential death of tumorigenic cells over non-tumorigenic cells, and suppressed the growth of xenograft tumor without acute toxicity. Our results suggest that targeting Srx might be an effective therapeutic strategy for cancer treatment through redox-mediated cell death.
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Affiliation(s)
- Jiwon Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Gong-Rak Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Hojin Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - You-Jin Jo
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Seong-Eun Hong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Jiae Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Hye In Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea
| | - Yeong-Su Jang
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, South Korea
| | - Seung-Hyun Oh
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, South Korea
| | - Hwa Jeong Lee
- College of Pharmacy, Ewha Womans University, Seoul 120-750, South Korea
| | - Ju-Seog Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Woojin Jeong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, South Korea.
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Rhee SG, Kil IS. Mitochondrial H 2O 2 signaling is controlled by the concerted action of peroxiredoxin III and sulfiredoxin: Linking mitochondrial function to circadian rhythm. Free Radic Biol Med 2016; 100:73-80. [PMID: 28236420 DOI: 10.1016/j.freeradbiomed.2016.10.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 07/02/2016] [Accepted: 07/28/2016] [Indexed: 11/21/2022]
Abstract
Mitochondria produce hydrogen peroxide (H2O2) during energy metabolism in most mammalian cells as well as during the oxidation of cholesterol associated with the synthesis of steroid hormones in steroidogenic cells. Some of the H2O2 produced in mitochondria is released into the cytosol, where it serves as a key regulator of various signaling pathways. Given that mitochondria are equipped with several H2O2-eliminating enzymes, however, it had not been clear how mitochondrial H2O2 can escape destruction by these enzymes for such release. Peroxiredoxin III (PrxIII) is the most abundant and efficient H2O2-eliminating enzyme in mitochondria of most cell types. We found that PrxIII undergoes reversible inactivation through hyperoxidation of its catalytic cysteine residue to cysteine sulfinic acid, and that release of mitochondrial H2O2 likely occurs as a result of such PrxIII inactivation. The hyperoxidized form of PrxIII (PrxIII-SO2H) is reduced and reactivated by sulfiredoxin (Srx). We also found that the amounts of PrxIII-SO2H and Srx undergo antiphasic circadian oscillation in mitochondria of the adrenal gland, heart, and brown adipose tissue of mice maintained under normal conditions. Cytosolic Srx was found to be imported into mitochondria via a mechanism that requires formation of a disulfide-linked complex with heat shock protein 90, which is likely promoted by H2O2 released from mitochondria. The imported Srx was found to be degraded by Lon protease in a manner dependent on PrxIII hyperoxidation state. The coordinated import and degradation of Srx underlie Srx oscillation and consequent PrxIII-SO2H oscillation in mitochondria. The rhythmic change in the amount of PrxIII-SO2H suggests that mitochondrial release of H2O2 is also likely a circadian event that conveys temporal information on steroidogenesis in the adrenal gland and on energy metabolism in heart and brown adipose tissue to cytosolic signaling pathways.
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Affiliation(s)
- Sue Goo Rhee
- Yonsei Biomedical Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
| | - In Sup Kil
- Yonsei Biomedical Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
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Yu Q, Zhang B, Li J, Zhang B, Wang H, Li M. Endoplasmic reticulum-derived reactive oxygen species (ROS) is involved in toxicity of cell wall stress to Candida albicans. Free Radic Biol Med 2016; 99:572-583. [PMID: 27650297 DOI: 10.1016/j.freeradbiomed.2016.09.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 08/28/2016] [Accepted: 09/16/2016] [Indexed: 12/22/2022]
Abstract
The cell wall is an important cell structure in both fungi and bacteria, and hence becomes a common antimicrobial target. The cell wall-perturbing agents disrupt synthesis and function of cell wall components, leading to cell wall stress and consequent cell death. However, little is known about the detailed mechanisms by which cell wall stress renders fungal cell death. In this study, we found that ROS scavengers drastically attenuated the antifungal effect of cell wall-perturbing agents to the model fungal pathogen Candida albicans, and these agents caused remarkable ROS accumulation and activation of oxidative stress response (OSR) in this fungus. Interestingly, cell wall stress did not cause mitochondrial dysfunction and elevation of mitochondrial superoxide levels. Furthermore, the iron chelator 2,2'-bipyridyl (BIP) and the hydroxyl radical scavengers could not attenuate cell wall stress-caused growth inhibition and ROS accumulation. However, cell wall stress up-regulated expression of unfold protein response (UPR) genes, enhanced protein secretion and promoted protein folding-related oxidation of Ero1, an important source of ROS production. These results indicated that oxidation of Ero1 in the endoplasmic reticulum (ER), rather than mitochondrial electron transport and Fenton reaction, contributed to cell wall stress-related ROS accumulation and consequent growth inhibition. Our findings uncover a novel link between cell wall integrity (CWI), ER function and ROS production in fungal cells, and shed novel light on development of strategies promoting the antifungal efficacy of cell wall-perturbing agents against fungal infections.
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Affiliation(s)
- Qilin Yu
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Bing Zhang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Jianrong Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Biao Zhang
- Tianjin Traditional Chinese Medicine University, Tianjin 300193, PR China
| | - Honggang Wang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Mingchun Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, PR China.
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Grossman I, Ilani T, Fleishman SJ, Fass D. Overcoming a species-specificity barrier in development of an inhibitory antibody targeting a modulator of tumor stroma. Protein Eng Des Sel 2016; 29:135-47. [PMID: 26819240 PMCID: PMC4795942 DOI: 10.1093/protein/gzv067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 09/19/2015] [Accepted: 12/14/2015] [Indexed: 12/26/2022] Open
Abstract
The secreted disulfide catalyst Quiescin sulfhydryl oxidase-1 (QSOX1) affects extracellular matrix organization and is overexpressed in various adenocarcinomas and associated stroma. Inhibition of extracellular human QSOX1 by a monoclonal antibody decreased tumor cell migration in a cell co-culture model and hence may have therapeutic potential. However, the species specificity of the QSOX1 monoclonal antibody has been a setback in assessing its utility as an anti-metastatic agent in vivo, a common problem in the antibody therapy industry. We therefore used structurally guided engineering to expand the antibody species specificity, improving its affinity toward mouse QSOX1 by at least four orders of magnitude. A crystal structure of the re-engineered variant, complexed with its mouse antigen, revealed that the antibody accomplishes dual-species targeting through altered contacts between its heavy and light chains, plus replacement of bulky aromatics by flexible side chains and versatile water-bridged polar interactions. In parallel, we produced a surrogate antibody targeting mouse QSOX1 that exhibits a new QSOX1 inhibition mode. This set of three QSOX1 inhibitory antibodies is compatible with various mouse models for pre-clinical trials and biotechnological applications. In this study we provide insights into structural blocks to cross-reactivity and set up guideposts for successful antibody design and re-engineering.
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Affiliation(s)
- Iris Grossman
- Department of Structural Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Tal Ilani
- Department of Structural Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sarel Jacob Fleishman
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Deborah Fass
- Department of Structural Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
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Xie J, Zhu Y, Chen H, Shi M, Gu J, Zhang J, Shen B, Deng X, Zhan X, Peng C. The Immunohistochemical Evaluation of Solid Pseudopapillary Tumors of the Pancreas and Pancreatic Neuroendocrine Tumors Reveals ERO1Lβ as a New Biomarker. Medicine (Baltimore) 2016; 95:e2509. [PMID: 26765469 PMCID: PMC4718295 DOI: 10.1097/md.0000000000002509] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Solid pseudopapillary tumor of the pancreas (SPTP) is a class of low-grade malignant tumors that carry a favorable prognosis after surgery. Our group has reported that dysfunctions in the endoplasmic reticulum (ER) protein processing pathway may play a role in tumor development. However, alterations of this pathway in other pancreatic tumors had not been well investigated. In this study, we collected 35 SPTP and pancreatic neuroendocrine tumor (PNET) specimens and described the clinicopathological features of them. We performed immunohistochemistry (IHC) for 6 representative proteins (ERO1Lβ, TRAM1, GRP94, BIP, P4HB, and PDIA4) involved in the ER pathway in both SPTP and PNET specimens. We compared the IHC scoring results of tumors and matched normal pancreas tissues and demonstrated that these proteins were downregulated in SPTP specimens. Five of these proteins (TRAM1, GRP94, BIP, P4HB, and PDIA4) did not display significant changes between PNET and normal pancreas tissue. However, ERO1Lβ was upregulated in PNET tissues compared to the normal tissues, which could be used as a pathological biomarker in the future.
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Affiliation(s)
- Junjie Xie
- From the Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai (JX, HC, JG, JZ, BS, XD, XZ, CP); Department of Surgery, The Second Affiliated Hospital of Zhejiang University, Hangzhou (YZ); and Research Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China (MS)
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Cerveau D, Ouahrani D, Marok MA, Blanchard L, Rey P. Physiological relevance of plant 2-Cys peroxiredoxin overoxidation level and oligomerization status. Plant Cell Environ 2016; 39:103-19. [PMID: 26138759 DOI: 10.1111/pce.12596] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 06/15/2015] [Accepted: 06/19/2015] [Indexed: 05/10/2023]
Abstract
Peroxiredoxins are ubiquitous thioredoxin-dependent peroxidases presumed to display, upon environmental constraints, a chaperone function resulting from a redox-dependent conformational switch. In this work, using biochemical and genetic approaches, we aimed to unravel the factors regulating the redox status and the conformation of the plastidial 2-Cys peroxiredoxin (2-Cys PRX) in plants. In Arabidopsis, we show that in optimal growth conditions, the overoxidation level mainly depends on the availability of thioredoxin-related electron donors, but not on sulfiredoxin, the enzyme reducing the 2-Cys PRX overoxidized form. We also observed that upon various physiological temperature, osmotic and light stress conditions, the overoxidation level and oligomerization status of 2-Cys PRX can moderately vary depending on the constraint type. Further, no major change was noticed regarding protein conformation in water-stressed Arabidopsis, barley and potato plants, whereas species-dependent up- and down-variations in overoxidation were observed. In contrast, both 2-Cys PRX overoxidation and oligomerization were strongly induced during a severe oxidative stress generated by methyl viologen. From these data, revealing that the oligomerization status of plant 2-Cys PRX does not exhibit important variation and is not tightly linked to the protein redox status upon physiologically relevant environmental constraints, the possible in planta functions of 2-Cys PRX are discussed.
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Affiliation(s)
- Delphine Cerveau
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
| | - Djelloul Ouahrani
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
| | - Mohamed Amine Marok
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
- Université de Khemis Miliana, Faculté des Sciences de la Nature et de la Vie et des Sciences de la Terre, Ain Defla, Khemis Miliana, 44225, Algérie
| | - Laurence Blanchard
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
- CEA, DSV, IBEB, Laboratoire de Bioénergétique Cellulaire, Saint-Paul-lez-Durance, F-13108, France
| | - Pascal Rey
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
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El-Sayed ASA, Yassin MA, Ali GS. Transcriptional and Proteomic Profiling of Aspergillus flavipes in Response to Sulfur Starvation. PLoS One 2015; 10:e0144304. [PMID: 26633307 PMCID: PMC4669086 DOI: 10.1371/journal.pone.0144304] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 11/15/2015] [Indexed: 12/19/2022] Open
Abstract
Aspergillus flavipes has received considerable interest due to its potential to produce therapeutic enzymes involved in sulfur amino acid metabolism. In natural habitats, A. flavipes survives under sulfur limitations by mobilizing endogenous and exogenous sulfur to operate diverse cellular processes. Sulfur limitation affects virulence and pathogenicity, and modulates proteome of sulfur assimilating enzymes of several fungi. However, there are no previous reports aimed at exploring effects of sulfur limitation on the regulation of A. flavipes sulfur metabolism enzymes at the transcriptional, post-transcriptional and proteomic levels. In this report, we show that sulfur limitation affects morphological and physiological responses of A. flavipes. Transcription and enzymatic activities of several key sulfur metabolism genes, ATP-sulfurylase, sulfite reductase, methionine permease, cysteine synthase, cystathionine β- and γ-lyase, glutathione reductase and glutathione peroxidase were increased under sulfur starvation conditions. A 50 kDa protein band was strongly induced by sulfur starvation, and the proteomic analyses of this protein band using LC-MS/MS revealed similarity to many proteins involved in the sulfur metabolism pathway.
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Affiliation(s)
- Ashraf S. A. El-Sayed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, 44519, Zagazig, Egypt
- Mid-Florida Research and Education Center, Department of Plant Pathology, University of Florida, Apopka, Florida 32703, United States of America
- * E-mail: (GSA); (AES)
| | - Marwa A. Yassin
- Botany and Microbiology Department, Faculty of Science, Zagazig University, 44519, Zagazig, Egypt
| | - Gul Shad Ali
- Mid-Florida Research and Education Center, Department of Plant Pathology, University of Florida, Apopka, Florida 32703, United States of America
- * E-mail: (GSA); (AES)
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Yang Q, Zhang J, Hu L, Lu J, Sang M, Zhang S. Molecular structure and functional characterization of the gamma-interferon-inducible lysosomal thiol reductase (GILT) gene in largemouth bass (Microptenus salmoides). Fish Shellfish Immunol 2015; 47:689-696. [PMID: 26477576 DOI: 10.1016/j.fsi.2015.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/07/2015] [Accepted: 10/12/2015] [Indexed: 06/05/2023]
Abstract
The enzyme gamma-interferon-inducible lysosomal thiol reductase (GILT) plays a role in facilitating the processing and presentation of major histocompatibility complex (MHC) class II-restricted antigens and is also involved in MHC I-restricted antigens in adaptive immunity catalyzing disulfide bond reduction in mammals. In this study, we cloned a GILT gene homolog from largemouth bass (designated 'lbGILT'), a freshwater fish belonging to Perciformes and known for its nutritive value. We obtained the full-length cDNA of lbGILT by reverse transcription PCR and rapid amplification of cDNA ends. This cDNA is comprised of a 5'-untranslated region (UTR) of 87 bp, a 3'-UTR of 189 bp, and an open reading frame of 771 bp. It encodes a protein of 256 amino acids with a deduced molecular weight of 28.548 kDa and a predicted isoelectric point of 5.62. The deduced protein possesses the typical structural features of known GILTs, including an active site motif, two potential N-linked glycosylation sites, a GILT signature sequence, and six conserved cysteines. Tissue-specific expression of lbGILT was shown by real-time quantitative PCR. The expression of lbGILT mRNA was obviously up regulated in spleen and kidney after induction with lipopolysaccharide. Recombinant lbGILT was produced as an inclusion body with a His6 tag in ArcticExpress (DE3), and the protein was then washed, solubilized, and refolded. The refolded lbGILT showed reduction activity against an IgG substrate. These results suggest that lbGILT plays a role in innate immunity.
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Affiliation(s)
- Qian Yang
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, Life Sciences College, Nanjing Normal University, Nanjing 210046, China
| | - Jiaxin Zhang
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, Life Sciences College, Nanjing Normal University, Nanjing 210046, China; Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Lingling Hu
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, Life Sciences College, Nanjing Normal University, Nanjing 210046, China
| | - Jia Lu
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, Life Sciences College, Nanjing Normal University, Nanjing 210046, China
| | - Ming Sang
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, Life Sciences College, Nanjing Normal University, Nanjing 210046, China; Jiangsu Province Key Laboratory for Aquatic Crustacean Diseases, Life Sciences College, Nanjing Normal University, Nanjing 210046, China
| | - Shuangquan Zhang
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, Life Sciences College, Nanjing Normal University, Nanjing 210046, China; Jiangsu Province Key Laboratory for Aquatic Crustacean Diseases, Life Sciences College, Nanjing Normal University, Nanjing 210046, China.
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Sarill M, Zago M, Sheridan JA, Nair P, Matthews J, Gomez A, Roussel L, Rousseau S, Hamid Q, Eidelman DH, Baglole CJ. The aryl hydrocarbon receptor suppresses cigarette-smoke-induced oxidative stress in association with dioxin response element (DRE)-independent regulation of sulfiredoxin 1. Free Radic Biol Med 2015; 89:342-57. [PMID: 26408075 DOI: 10.1016/j.freeradbiomed.2015.08.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 08/10/2015] [Accepted: 08/11/2015] [Indexed: 01/13/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a ubiquitously expressed receptor/transcription factor that mediates toxicological responses of environmental contaminants such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Emerging evidence indicates that the AhR suppresses apoptosis and proliferation independent of exogenous ligands, including suppression of apoptosis by cigarette smoke, a key risk factor for chronic obstructive pulmonary disease (COPD). As cigarette smoke is a potent inducer of oxidative stress, a feature that may contribute to the development of COPD, we hypothesized that the AhR prevents smoke-induced apoptosis by regulating oxidative stress. Utilizing primary lung fibroblasts derived from AhR(+/+) and AhR(-/-) mice as well as A549 human lung adenocarcinoma cells deficient in AhR expression (A549-AhR(ko)), we first show that AhR(-/-) fibroblasts and A549-AhR(ko) epithelial cells have a significant increase in cigarette smoke extract (CSE)-induced oxidative stress compared to wild type. CSE induced a significant increase in the mRNA expression of key antioxidant genes, including Nqo1 and Srxn1, predominantly in AhR(+/+) fibroblasts, with significantly less induction in AhR(-/-) cells. The induction of Srxn1, but not Nqo1, was independent of dioxin-response element (DRE) binding as AhR(DBD/DBD) lung fibroblasts, which express an AhR incapable of binding the DRE, increased Srxn1 to a degree similar to wild-type cells in response to CSE. There was no difference in Nrf2 expression or activation based on AhR expression. Lung fibroblasts derived from COPD subjects have significantly less AhR protein expression compared with both never-smokers (Normal) and smokers (At Risk). Consequently, COPD-derived fibroblasts were less robust in their induction of both Nqo1 and Srxn1 mRNA after exposure to CSE, which also failed to activate the AhR in the COPD fibroblasts. Taken together, these results support a new role for the AhR in regulating antioxidant defense in lung structural cells, such that low AhR expression may facilitate the development or progression of COPD.
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Affiliation(s)
- Miles Sarill
- Department of Medicine, Division of Experimental Medicine
| | - Michela Zago
- Research Institute of the McGill University Health Centre, McGill University, Centre for Translational Biology (CTB), Block E, 1001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | | | | | - Jason Matthews
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Alvin Gomez
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Lucie Roussel
- Research Institute of the McGill University Health Centre, McGill University, Centre for Translational Biology (CTB), Block E, 1001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | - Simon Rousseau
- Research Institute of the McGill University Health Centre, McGill University, Centre for Translational Biology (CTB), Block E, 1001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | - Qutayba Hamid
- Department of Medicine, Division of Experimental Medicine; Research Institute of the McGill University Health Centre, McGill University, Centre for Translational Biology (CTB), Block E, 1001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | - David H Eidelman
- Department of Medicine, Division of Experimental Medicine; Research Institute of the McGill University Health Centre, McGill University, Centre for Translational Biology (CTB), Block E, 1001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | - Carolyn J Baglole
- Department of Medicine, Division of Experimental Medicine; Research Institute of the McGill University Health Centre, McGill University, Centre for Translational Biology (CTB), Block E, 1001 Decarie Blvd., Montreal, QC H4A 3J1, Canada.
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Chen F, Hu M, Jiang X, Tao Y, Huang J. [Enhancement of Coprinus cinereus peroxidase in Pichia pastoris by co-expression chaperone PDI and Ero1]. Sheng Wu Gong Cheng Xue Bao 2015; 31:1682-1689. [PMID: 27093831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The 1,095 bp gene encoding peroxidase from Coprinus cinereus was synthesized and integrated into the genome of Pichia pastoris with a highly inducible alcohol oxidase. The recombinant CiP (rCiP) fused with the a-mating factor per-pro leader sequence derived from Saccharomyces cerevisiae was secreted into the culture medium and identified as the target protein by mass spectrometry, confirming that a C. cinereus peroxidase (CiP) was successfully expressed in P. pastoris. The endoplasmic reticulum oxidoreductase 1 (Ero1) and protein disulfide isomerase (PDI) were co-expressed with rCiP separately and simultaneously. Compared with the wild type, overexpression of PDI and Erol-PDI increaseed Cip activity in 2.43 and 2.6 fold and their activity reached 316 U/mL and 340 U/mL respectively. The strains co-expressed with Erol-PDI was used to high density fermentation, and their activity reached 3,379 U/mL, which was higher than previously reported of 1,200 U/mL.
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Zeng T, Leimkühler S, Koetz J, Wollenberger U. Effective Electrochemistry of Human Sulfite Oxidase Immobilized on Quantum-Dots-Modified Indium Tin Oxide Electrode. ACS Appl Mater Interfaces 2015; 7:21487-21494. [PMID: 26357959 DOI: 10.1021/acsami.5b06665] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The bioelectrocatalytic sulfite oxidation by human sulfite oxidase (hSO) on indium tin oxide (ITO) is reported, which is facilitated by functionalizing of the electrode surface with polyethylenimine (PEI)-entrapped CdS nanoparticles and enzyme. hSO was assembled onto the electrode with a high surface loading of electroactive enzyme. In the presence of sulfite but without additional mediators, a high bioelectrocatalytic current was generated. Reference experiments with only PEI showed direct electron transfer and catalytic activity of hSO, but these were less pronounced. The application of the polyelectrolyte-entrapped quantum dots (QDs) on ITO electrodes provides a compatible surface for enzyme binding with promotion of electron transfer. Variations of the buffer solution conditions, e.g., ionic strength, pH, viscosity, and the effect of oxygen, were studied in order to understand intramolecular and heterogeneous electron transfer from hSO to the electrode. The results are consistent with a model derived for the enzyme by using flash photolysis in solution and spectroelectrochemistry and molecular dynamic simulations of hSO on monolayer-modified gold electrodes. Moreover, for the first time a photoelectrochemical electrode involving immobilized hSO is demonstrated where photoexcitation of the CdS/hSO-modified electrode lead to an enhanced generation of bioelectrocatalytic currents upon sulfite addition. Oxidation starts already at the redox potential of the electron transfer domain of hSO and is greatly increased by application of a small overpotential to the CdS/hSO-modified ITO.
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Affiliation(s)
- Ting Zeng
- Institute of Biochemistry and Biology and ‡Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Strasse 24-25, 14476 Potsdam-Golm, Germany
| | - Silke Leimkühler
- Institute of Biochemistry and Biology and ‡Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Strasse 24-25, 14476 Potsdam-Golm, Germany
| | - Joachim Koetz
- Institute of Biochemistry and Biology and ‡Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Strasse 24-25, 14476 Potsdam-Golm, Germany
| | - Ulla Wollenberger
- Institute of Biochemistry and Biology and ‡Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Strasse 24-25, 14476 Potsdam-Golm, Germany
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