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Wang M, Xie Z, Xu J, Feng Z. TWEAK/Fn14 axis in respiratory diseases. Clin Chim Acta 2020; 509:139-148. [PMID: 32526219 DOI: 10.1016/j.cca.2020.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/31/2020] [Accepted: 06/03/2020] [Indexed: 02/08/2023]
Abstract
Tumor necrosis factor-like weak inducer of apoptosis (TWEAK) is a well known multifunctional cytokine extensively distributed in cell types and tissues. Accumulating evidence has shown that TWEAK binding to the receptor factor-inducible 14 (Fn14) participates in diverse pathologic processes including cell proliferation and death, angiogenesis, carcinogenesis and inflammation. Interestingly, alterations of intracellular signaling cascades are correlated to the development of respiratory disease. Recently, a several lines of evidence suggests that TWEAK in lung tissues are closely associated with these signaling pathways. In this review, we explore if TWEAK could provide a novel therapeutic strategy for managing respiratory disease in general and pulmonary arterial hypertension (PAH), obstructive sleep apnea syndrome (OSAS), asthma, idiopathic pulmonary fibrosis (IPF), chronic obstructive pulmonary disease (COPD) and non-small cell lung cancer (NSCLC), specifically.
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Affiliation(s)
- Min Wang
- Department of Otorhinolaryngology, University of South China Affiliated Nanhua Hospital, Hengyang 421002, China
| | - Zhijuan Xie
- Department of Nephrology, The First Affiliated Hospital of University of South China, Hengyang 421001, China
| | - Jin Xu
- School of Pharmaceutical Sciences, Changsha Medical University, Changsha 410219, Hunan, China.
| | - Zhuyu Feng
- Department of Critical Care Medicine, University of South China Affiliated Nanhua Hospital, Hengyang 421002, China.
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52
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Guo Y, Xu Y, Xiong D, Zhou Y, Kang X, Meng C, Gu D, Jiao X, Pan Z. Molecular characterisation, expression and functional feature of TRAF6 in the King pigeon ( Columba livia). Innate Immun 2020; 26:490-504. [PMID: 32393097 PMCID: PMC7491236 DOI: 10.1177/1753425920920930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
TNF receptor-associated factor 6 (TRAF6) is a signal transducer, which plays a pivotal role in triggering a variety of signalling cascades. Here, we cloned and identified the TRAF6 gene from the King pigeon. The open reading frame sequence of pigeon TRAF6 (piTRAF6) is 1638 bp long and encodes a 545 aa protein, including a low-complexity domain, RING finger, Zinc finger, coiled coil domain, and meprin and TRAF homology domain. The aa sequence of piTRAF6 shared a strong identity with that of other birds. PiTRAF6 transcripts were broadly expressed in all the tested tissues; piTRAF6 levels were the highest and lowest in the heart and stomach, respectively. Overexpression of piTRAF6 activated NF-κB in a dose-dependent manner and induced IFN-β expression. Upon piTRAF6 knockdown by small interfering RNAs, NF-κB activation was markedly inhibited in HEK293T cells. The expression of piTRAF6, as well as pro-inflammatory cytokines and antiviral molecules, were obviously increased after TLR ligand stimulation and Newcastle disease virus or Salmonella Pullorum inoculation. These results suggest that piTRAF6 may play a key immunoregulatory role in the innate immune response against viral and bacterial infections.
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Affiliation(s)
- Yaxin Guo
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Ying Xu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Dan Xiong
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Yingying Zhou
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Xilong Kang
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Chuang Meng
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Dan Gu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Xinan Jiao
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Zhiming Pan
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
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53
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Kim CM, Park HH. Comparison of Target Recognition by TRAF1 and TRAF2. Int J Mol Sci 2020; 21:ijms21082895. [PMID: 32326186 PMCID: PMC7215387 DOI: 10.3390/ijms21082895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/10/2020] [Accepted: 04/20/2020] [Indexed: 12/12/2022] Open
Abstract
Although TRAF1 and TRAF2 share common receptors and have extremely conserved amino acid residues, recent studies have shown that key differences in receptor binding preferences with different affinities exist, which might be important for their different functions in TRAF-mediated signal transduction. To better understand TRAF1 and TRAF2 signaling, we analyzed and compared their receptor binding-affinities. Our study revealed that TRADD, TANK, and caspase-2 bind to both TRAF1 and TRAF2 with different affinities in vitro. Sequence and structural analyses revealed that S454 on TRAF2 (corresponding to A369 of TRAF1) is critical for the binding of TRADD, and F347 on TRAF1 (corresponding to L432 of TRAF2) is a critical determinant for high affinity binding of TANK and caspase-2.
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Hou J, Pang Y, Li Q. Comprehensive Evolutionary Analysis of Lamprey TNFR-Associated Factors (TRAFs) and Receptor-Interacting Protein Kinase (RIPKs) and Insights Into the Functional Characterization of TRAF3/6 and RIPK1. Front Immunol 2020; 11:663. [PMID: 32373123 PMCID: PMC7179693 DOI: 10.3389/fimmu.2020.00663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 03/23/2020] [Indexed: 12/24/2022] Open
Abstract
TNFR-associated factors (TRAFs) and receptor-interacting protein kinases (RIPKs) are important immunological linker molecules in mammals and play important roles in the TNFα, TLR and IFN signaling pathways. However, the evolutionary origins of these genes in vertebrates have not previously been described in lampreys. In this study, we searched the genomes of Lampetra japonicum, Lethenteron reissneri, and Petromyzon marinus for genes encoding trafs and ripks and performed homologous sequence alignment, phylogenetic tree, functional domain, conserved motif, gene structure, and synteny analyses to determine their evolutionary relationships. The distribution of the lamprey traf and ripk families and the immune response of the gene families in lampreys stimulated by different pathogens were also demonstrated, suggesting a role of structural changes in expression and functional diversification. Additionally, the dual luciferase reporter gene assay showed that the addition of exogenous immunomodulator (TNFα or IFN) to the overexpression of LjLRIPK1a or LjTRAF3/6 significantly downregulated NF-κB or ISRE activation. LjRIPK1a can significantly enhance caspase-8 activity, and overexpression of LjRIPK1a or LjTRAF3a/6 in HEK293T cells results in cell apoptosis. In summary, this study makes an important contribution to the understanding of the traf and ripk gene families in different vertebrates. Our results also provide new evidence for the evolution of vertebrate TRAFs and RIPKs and their impacts on immune regulation.
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Affiliation(s)
- Jianqiang Hou
- College of Life Sciences, Liaoning Normal University, Dalian, China.,Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Yue Pang
- College of Life Sciences, Liaoning Normal University, Dalian, China.,Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Qingwei Li
- College of Life Sciences, Liaoning Normal University, Dalian, China.,Lamprey Research Center, Liaoning Normal University, Dalian, China
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55
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Cen S, Li J, Cai Z, Pan Y, Sun Z, Li Z, Ye G, Zheng G, Li M, Liu W, Yu W, Wang S, Xie Z, Wang P, Shen H. TRAF4 acts as a fate checkpoint to regulate the adipogenic differentiation of MSCs by activating PKM2. EBioMedicine 2020; 54:102722. [PMID: 32268273 PMCID: PMC7191261 DOI: 10.1016/j.ebiom.2020.102722] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/18/2020] [Accepted: 03/03/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) selectively differentiate into adipocytes or osteoblasts, and several molecules control the fate determination of MSCs. Understanding these key checkpoints greatly contributes to the ability to induce specific MSC differentiation for clinical applications. In this study, we aimed to explore whether TNF receptor-associated factor 4 (TRAF4) affects MSC adipogenic differentiation, which we previously reported that could positively regulated the osteogenic differentiation. METHODS Western blotting and Real-time Polymerase Chain Reaction were used to detected the expression pattern of TRAF4 during adipogenic differentiation. Lentivirus was constructed to regulate TRAF4 expression, and oil red O staining and Western blotting were used to assess its role in adipogenesis, which was confirmed in vivo by implanting an MSC-matrigel mixture into nude mice. Western blotting was used to detect the activated signaling pathways, and a specific inhibitor and agonist were used to clear the roles of the key signaling pathways. Additionaly, Co-Immunoprecipitation was conducted to find that Pyruvate kinase isozyme type M2 (PKM2) interacts with TRAF4, and to further explore their binding and functional domains. Finally, an RNA-binding protein immunoprecipitation assay and Western blotting were used to detect whether N6-methyladenosine mediates the decreased TRAF4 expression during adipogenic differentiation. FINDINGS The results demonstrated that TRAF4 negatively regulates MSC adipogenesis in vitro and in vivo. Mechanistically, we revealed that TRAF4 binds to PKM2 to activate the kinase activity of PKM2, which subsequently activates β-catenin signaling and then inhibits adipogenesis. Furthermore, TRAF4 downregulation during adipogenesis is regulated by ALKBH5-mediated N6-methyladenosine RNA demethylation. INTERPRETATION TRAF4 negatively regulates the adipogenesis of MSCs by activating PKM2 kinase activity, which may act as a checkpoint to fine-tune the balance of adipo-osteogenic differentiation, and suggests that TRAF4 may be a novel target of MSCs in clinical use and may also illuminate the underlying mechanisms of bone metabolic diseases. FUNDING This study was supported by the National Natural Science Foundation of China (81871750 and 81971518) and the Science and Technology Project of Guangdong Province (2019B02023600 and 2017A020215070).
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Affiliation(s)
- Shuizhong Cen
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Jinteng Li
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Zhaopeng Cai
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Yiqian Pan
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Zehang Sun
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Zhaofeng Li
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Guiwen Ye
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Guan Zheng
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Ming Li
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Wenjie Liu
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Wenhui Yu
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Shan Wang
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Zhongyu Xie
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China.
| | - Peng Wang
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China.
| | - Huiyong Shen
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China; Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China.
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56
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Đukić A, Lulić L, Thomas M, Skelin J, Bennett Saidu NE, Grce M, Banks L, Tomaić V. HPV Oncoproteins and the Ubiquitin Proteasome System: A Signature of Malignancy? Pathogens 2020; 9:pathogens9020133. [PMID: 32085533 PMCID: PMC7168213 DOI: 10.3390/pathogens9020133] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 12/22/2022] Open
Abstract
Human papillomavirus (HPV) E6 and E7 oncoproteins are critical for development and maintenance of the malignant phenotype in HPV-induced cancers. These two viral oncoproteins interfere with a plethora of cellular pathways, including the regulation of cell cycle and the control of apoptosis, which are critical in maintaining normal cellular functions. E6 and E7 bind directly with certain components of the Ubiquitin Proteasome System (UPS), enabling them to manipulate a number of important cellular pathways. These activities are the means by which HPV establishes an environment supporting the normal viral life cycle, however in some instances they can also lead to the development of malignancy. In this review, we have discussed how E6 and E7 oncoproteins from alpha and beta HPV types interact with the components of the UPS, and how this interplay contributes to the development of cancer.
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Affiliation(s)
- Anamaria Đukić
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (A.Đ.); (L.L.); (J.S.); (N.E.B.S.); (M.G.)
| | - Lucija Lulić
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (A.Đ.); (L.L.); (J.S.); (N.E.B.S.); (M.G.)
| | - Miranda Thomas
- International Centre for Genetic Engineering and Biotechnology, AREA Science Park, Padriciano 99, I-34149 Trieste, Italy; (M.T.); (L.B.)
| | - Josipa Skelin
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (A.Đ.); (L.L.); (J.S.); (N.E.B.S.); (M.G.)
| | - Nathaniel Edward Bennett Saidu
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (A.Đ.); (L.L.); (J.S.); (N.E.B.S.); (M.G.)
| | - Magdalena Grce
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (A.Đ.); (L.L.); (J.S.); (N.E.B.S.); (M.G.)
| | - Lawrence Banks
- International Centre for Genetic Engineering and Biotechnology, AREA Science Park, Padriciano 99, I-34149 Trieste, Italy; (M.T.); (L.B.)
| | - Vjekoslav Tomaić
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (A.Đ.); (L.L.); (J.S.); (N.E.B.S.); (M.G.)
- Correspondence: ; Tel.: +385-1-4561110; Fax: +385-1-4561010
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57
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Tong Y, Lear TB, Evankovich J, Chen Y, Londino JD, Myerburg MM, Zhang Y, Popescu ID, McDyer JF, McVerry BJ, Lockwood KC, Jurczak MJ, Liu Y, Chen BB. The RNFT2/IL-3Rα axis regulates IL-3 signaling and innate immunity. JCI Insight 2020; 5:133652. [PMID: 31990690 DOI: 10.1172/jci.insight.133652] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/09/2020] [Indexed: 01/01/2023] Open
Abstract
Interleukin-3 (IL-3) receptor α (IL-3Rα) is the α subunit of the ligand-specific IL-3R and initiates intracellular signaling in response to IL-3. IL-3 amplifies proinflammatory signaling and cytokine storm in murine sepsis models. Here we found that RNFT2 (RING finger transmembrane-domain containing protein 2, also TMEM118), a previously uncharacterized RING finger ubiquitin E3 ligase, negatively regulated IL-3-dependent cellular responses through IL-3Rα ubiquitination and degradation in the proteasome. In vitro, IL-3 stimulation promoted IL-3Rα proteasomal degradation dependent on RNFT2, and we identified IL-3Rα lysine 357 as a ubiquitin acceptor site. We determined that LPS priming reduces RNFT2 abundance, extends IL-3Rα half-life, and sensitizes cells to the effects of IL-3, acting synergistically to increase proinflammatory signaling. In vivo, IL-3 synergized with LPS to exacerbate lung inflammation in LPS and Pseudomonas aeruginosa-challenged mice; conversely, IL-3 neutralization reduced LPS-induced lung injury. Further, RNFT2 overexpression reduced lung inflammation and injury, whereas Rnft2 knockdown exacerbated inflammatory responses in LPS-induced murine lung injury. Last, we examined RNFT2 and IL-3Rα in human lung explants from patients with cystic fibrosis and also showed that IL-3 is elevated in mechanically ventilated critically ill humans at risk for acute respiratory distress syndrome. These results identify RNFT2 as a negative regulator of IL-3Rα and show a potential role for the RNFT2/IL-3Rα/IL-3 axis in regulating innate immune responses in the lung.
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Affiliation(s)
- Yao Tong
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Travis B Lear
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Environmental and Occupational Health, School of Public Health, and.,Aging Institute, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John Evankovich
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Aging Institute, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yanwen Chen
- Aging Institute, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - James D Londino
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Michael M Myerburg
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yingze Zhang
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Iulia D Popescu
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John F McDyer
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Bryan J McVerry
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Environmental and Occupational Health, School of Public Health, and
| | - Karina C Lockwood
- Aging Institute, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael J Jurczak
- Division of Endocrinology and Metabolism, Department of Medicine, School of Medicine
| | - Yuan Liu
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Aging Institute, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,McGowan Institute for Regenerative Medicine, and
| | - Bill B Chen
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Aging Institute, Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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58
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Semmler S, Gagné M, Garg P, Pickles SR, Baudouin C, Hamon-Keromen E, Destroismaisons L, Khalfallah Y, Chaineau M, Caron E, Bayne AN, Trempe JF, Cashman NR, Star AT, Haqqani AS, Durcan TM, Meiering EM, Robertson J, Grandvaux N, Plotkin SS, McBride HM, Vande Velde C. TNF receptor-associated factor 6 interacts with ALS-linked misfolded superoxide dismutase 1 and promotes aggregation. J Biol Chem 2020; 295:3808-3825. [PMID: 32029478 DOI: 10.1074/jbc.ra119.011215] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/17/2020] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal disease, characterized by the selective loss of motor neurons leading to paralysis. Mutations in the gene encoding superoxide dismutase 1 (SOD1) are the second most common cause of familial ALS, and considerable evidence suggests that these mutations result in an increase in toxicity due to protein misfolding. We previously demonstrated in the SOD1G93A rat model that misfolded SOD1 exists as distinct conformers and forms deposits on mitochondrial subpopulations. Here, using SOD1G93A rats and conformation-restricted antibodies specific for misfolded SOD1 (B8H10 and AMF7-63), we identified the interactomes of the mitochondrial pools of misfolded SOD1. This strategy identified binding proteins that uniquely interacted with either AMF7-63 or B8H10-reactive SOD1 conformers as well as a high proportion of interactors common to both conformers. Of this latter set, we identified the E3 ubiquitin ligase TNF receptor-associated factor 6 (TRAF6) as a SOD1 interactor, and we determined that exposure of the SOD1 functional loops facilitates this interaction. Of note, this conformational change was not universally fulfilled by all SOD1 variants and differentiated TRAF6 interacting from TRAF6 noninteracting SOD1 variants. Functionally, TRAF6 stimulated polyubiquitination and aggregation of the interacting SOD1 variants. TRAF6 E3 ubiquitin ligase activity was required for the former but was dispensable for the latter, indicating that TRAF6-mediated polyubiquitination and aggregation of the SOD1 variants are independent events. We propose that the interaction between misfolded SOD1 and TRAF6 may be relevant to the etiology of ALS.
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Affiliation(s)
- Sabrina Semmler
- Department of Neurology and Neurosurgery, McGill University, Montréal, Quebec H3A 2B4, Canada.,Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - Myriam Gagné
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Quebec H3T 1J4, Canada
| | - Pranav Garg
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Sarah R Pickles
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Quebec H3T 1J4, Canada
| | - Charlotte Baudouin
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada.,Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Emeline Hamon-Keromen
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada.,Université Pierre et Marie Curie, 75005 Paris, France
| | - Laurie Destroismaisons
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - Yousra Khalfallah
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada.,Department of Neurosciences, Université de Montréal, Montréal, Quebec H3T 1J4, Canada
| | - Mathilde Chaineau
- Department of Neurology and Neurosurgery, McGill University, Montréal, Quebec H3A 2B4, Canada.,Montreal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Elise Caron
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - Andrew N Bayne
- Department of Pharmacology and Therapeutics, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Jean-François Trempe
- Department of Pharmacology and Therapeutics, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Neil R Cashman
- Department of Medicine (Neurology), University of British Columbia and Vancouver Coastal Health Research Institute, Brain Research Centre, Vancouver, British Columbia V6T 2B5, Canada
| | - Alexandra T Star
- Human Health Therapeutics Portfolio, National Research Council of Canada, Ottawa, Ontario, K1A 0R6, Canada
| | - Arsalan S Haqqani
- Human Health Therapeutics Portfolio, National Research Council of Canada, Ottawa, Ontario, K1A 0R6, Canada
| | - Thomas M Durcan
- Department of Neurology and Neurosurgery, McGill University, Montréal, Quebec H3A 2B4, Canada.,Montreal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Elizabeth M Meiering
- Department of Chemistry, Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Janice Robertson
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Ontario M5T 0S8, Canada
| | - Nathalie Grandvaux
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Quebec H3T 1J4, Canada
| | - Steven S Plotkin
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Heidi M McBride
- Department of Neurology and Neurosurgery, McGill University, Montréal, Quebec H3A 2B4, Canada.,Montreal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Christine Vande Velde
- Centre de Recherche du Centre Hospitalier de Université de Montréal, Montréal, Quebec H2X 0A9, Canada .,Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Quebec H3T 1J4, Canada.,Department of Neurosciences, Université de Montréal, Montréal, Quebec H3T 1J4, Canada
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59
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Lin Y, Mao F, Zhang X, Xu D, He Z, Li J, Xiang Z, Zhang Y, Yu Z. TRAF6 suppresses the apoptosis of hemocytes by activating pellino in Crassostrea hongkongensis. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 103:103501. [PMID: 31634519 DOI: 10.1016/j.dci.2019.103501] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/25/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6), an E3 ubiquitin ligase, participates in both innate and adaptive immunity and regulates the apoptotic process. In this study, we observed that an ortholog of TRAF6 could inhibit the activity of p53 and suppress the apoptotic process in the Hong Kong oyster, Crassostrea hongkongensis. To investigate the possible molecular mechanism of the ChTRAF6-induced antiapoptotic effect, a GST pull-down screening assay was conducted, and ChPellino was found to physically interact with ChTRAF6. In addition, the interaction between them was confirmed by Co-immunoprecipitation. Furthermore, western blotting revealed that the phosphorylation level of ChPellino was decreased after the RNAi of ChTRAF6, demonstrating that ChTRAF6 may be an upstream regulator of Pellino activation. Furthermore, the apoptosis level of hemocytes increased after ChPellino knockdown, and ChPellino overexpression suppressed ChTRAF6-dependent p53 activation. Taken together, these results indicate that ChPellino plays a critical role in suppressing ChTRAF6-dependent anti-apoptosis in the hemocytes of Crassostrea hongkongensis.
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Affiliation(s)
- Yue Lin
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fan Mao
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China
| | - Xiangyu Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Duo Xu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiying He
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China
| | - Zhiming Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China
| | - Yang Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China.
| | - Ziniu Yu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China.
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60
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Zou PF, Shen JJ, Li Y, Zhang ZP, Wang YL. TRAF3 enhances TRIF-mediated signaling via NF-κB and IRF3 activation in large yellow croaker Larimichthys crocea. FISH & SHELLFISH IMMUNOLOGY 2020; 97:114-124. [PMID: 31841694 DOI: 10.1016/j.fsi.2019.12.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 12/03/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
As a member of tumor necrosis factor receptor (TNFR)-associated factor (TRAF) family, TRAF3 is an important regulator of NF-κB and type I interferon (IFN) activation, especially in Toll-like receptors (TLRs)- and retinoic acid inducible gene I (RIG-I)-like receptors (RLRs)-mediated signaling pathway. In the present study, a TRAF3 homologue named Lc-TRAF3 was characterized in large yellow croaker (Larimichthys crocea). The open reading frame (ORF) of Lc-TRAF3 contains 1788 bp encoding a protein of 595 amino acids (aa). Sequence analysis indicated that Lc-TRAF3 is conserved in vertebrates, constituted with a N-terminal RING finger, two TRAF-type zinc fingers, and a C-terminal TRAF-MATH domain. The genome organization of Lc-TRAF3 is conserved in fish, with 13 exons and 12 introns, but different from that in birds or mammals, which contains 10 exons and 9 introns. Lc-TRAF3 was identified as cytosolic protein base on fluorescence microscopy analysis. Expression analysis revealed that Lc-TRAF3 was broadly distributed in examined organs/tissues, with the highest expression level in gill and weakest in brain, and could be up-regulated under poly I:C, LPS, PGN, and Pseudomonas plecoglossicida stimulation in vivo. Interestingly, overexpression Lc-TRAF3 could induce the activation of NF-κB, and Lc-TRAF3 co-transfected with Lc-TRIF induced a significantly higher level of NF-κB and IRF3 promoter activity, implying that Lc-TRAF3 may function as an enhancer in Lc-TRIF-mediated signaling pathway.
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Affiliation(s)
- Peng Fei Zou
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, Fujian Province, 361021, China
| | - Juan Juan Shen
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, Fujian Province, 361021, China
| | - Ying Li
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Tan Kah Kee College, Xiamen University, Zhangzhou, Fujian Province, 363105, China
| | - Zi Ping Zhang
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350002, China; State Key Laboratory of Large Yellow Croaker Breeding, Ningde Fufa Fisheries Company Limited, Ningde, Fujian Province, 352103, China
| | - Yi Lei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, Fujian Province, 361021, China; State Key Laboratory of Large Yellow Croaker Breeding, Ningde Fufa Fisheries Company Limited, Ningde, Fujian Province, 352103, China.
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61
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Targeting Cullin-RING Ubiquitin Ligases and the Applications in PROTACs. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1217:317-347. [DOI: 10.1007/978-981-15-1025-0_19] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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62
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Han XQ, Gao F, Lu M, Liu ZG, Wang M, Ke XL, Gao YX. Identification and characterisation of tumour necrosis factor receptor (TNFR) associated factor 3 from Nile tilapia, Oreochromis niloticus. JOURNAL OF FISH BIOLOGY 2020; 96:185-193. [PMID: 31721203 DOI: 10.1111/jfb.14203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
In this study, we cloned the complementary (c)DNA sequences of tumour necrosis factor receptor (TNFR)-associated factor 3 (traf3) in Nile tilapia, Oreochromis niloticus. The expression patterns of the traf3 gene were investigated and preliminary functional analyses were performed. In healthy fish, traf3 transcript was broadly expressed in all examined tissues, with the highest expression level in the blood and the lowest in the liver. The traf3 gene reached its highest expression at 8 days post-fertilisation (dpf) during embryonic development. Moreover, we found that expression of traf3 was clearly altered following stimulation with Streptococcus agalactiae in vivo and that traf3 could be induced by lipopolysaccharides (LPS), Poly I: C and S. agalactiae WC1535 in Nile tilapia macrophages. Overexpression in 293T cells showed that Traf3 protein was mainly distributed in the cytoplasm and could significantly increase nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) activation. Taken together, these results implied that traf3 could play important roles in the immune response to pathogen invasion.
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Affiliation(s)
- Xue-Qing Han
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
- National Demonstration Centre for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Fengying Gao
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
| | - Maixin Lu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
| | - Zhi-Gang Liu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
| | - Miao Wang
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
| | - Xiao-Li Ke
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
| | - Yan-Xia Gao
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, China
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Guangzhou, China
- National Demonstration Centre for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
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63
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Xu W, Zhang L, Zhang Y, Zhang K, Wu Y, Jin D. TRAF1 Exacerbates Myocardial Ischemia Reperfusion Injury via ASK1-JNK/p38 Signaling. J Am Heart Assoc 2019; 8:e012575. [PMID: 31650881 PMCID: PMC6898833 DOI: 10.1161/jaha.119.012575] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background After acute myocardial infarction, the recovery of ischemic myocardial blood flow may cause myocardial reperfusion injury, which reduces the efficacy of myocardial reperfusion. Ways to reduce and prevent myocardial ischemia/reperfusion (I/R) injury are of great clinical significance in the treatment of patients with acute myocardial infarction. TRAF1 (tumor necrosis factor receptor-associated factor 1) is an important adapter protein that is implicated in molecular events regulating immunity, inflammation, and cell death. Little is known about the role and impact of TRAF1 in myocardial I/R injury. Methods and Results TRAF1 expression is markedly induced in wild-type mice and cardiomyocytes after I/R or hypoxia/reoxygenation stimulation. I/R models were established in TRAF1 knockout mice and wild type mice (n=10 per group). We demonstrated that TRAF1 deficiency protects against myocardial I/R-induced loss of heat function, inflammation, and cardiomyocyte death. In addition, overexpression of TRAF1 in primary cardiomyocytes promotes hypoxia/reoxygenation-induced inflammation and apoptosis in vitro. Mechanistically, TRAF1 promotes myocardial I/R injury through regulating ASK1 (apoptosis signal-regulating kinase 1)-mediated JNK/p38 (c-Jun N-terminal kinase/p38) MAPK (mitogen-activated protein kinase) cascades. Conclusions Our results indicated that TRAF1 aggravates the development of myocardial I/R injury by enhancing the activation of ASK1-mediated JNK/p38 cascades. Targeting the TRAF1-ASK1-JNK/p38 pathway provide feasible therapies for cardiac I/R injury.
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Affiliation(s)
- Weipan Xu
- Department of Cardiology Huangshi Central Hospital Affiliated Hospital of Hubei Polytechnic University Edong Healthcare Group Huang Shi China.,Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention Huang Shi China
| | - Li Zhang
- Center for Animal Experiment Wuhan University Wuhan China
| | - Yi Zhang
- Department of Cardiology Huangshi Central Hospital Affiliated Hospital of Hubei Polytechnic University Edong Healthcare Group Huang Shi China
| | - Kai Zhang
- Department of Cardiology Huangshi Central Hospital Affiliated Hospital of Hubei Polytechnic University Edong Healthcare Group Huang Shi China
| | - Yongbo Wu
- Department of Cardiology Huangshi Central Hospital Affiliated Hospital of Hubei Polytechnic University Edong Healthcare Group Huang Shi China
| | - Daoqun Jin
- Department of Cardiology Huangshi Central Hospital Affiliated Hospital of Hubei Polytechnic University Edong Healthcare Group Huang Shi China
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64
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Das A, Sudhahar V, Ushio-Fukai M, Fukai T. Novel interaction of antioxidant-1 with TRAF4: role in inflammatory responses in endothelial cells. Am J Physiol Cell Physiol 2019; 317:C1161-C1171. [PMID: 31553645 DOI: 10.1152/ajpcell.00264.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
NADPH oxidase (NOX)-derived reactive oxygen species (ROS) and copper (Cu), an essential micronutrient, have been implicated in vascular inflammatory diseases. We reported that in proinflammatory cytokine TNF-α-stimulated endothelial cells (ECs), cytosolic Cu chaperone antioxidant-1 (Atox1) functions as a Cu-dependent transcription factor for the NOX organizer p47phox, thereby increasing ROS-dependent inflammatory gene expression. However, the role and mechanism of Atox1 nuclear translocation in inflamed ECs remain unclear. Using enface staining and nuclear fractionation, here we show that Atox1 was localized in the nucleus in inflamed aortas from ApoE-/- mice with angiotensin II infusion on a high-fat diet, while it was found in cytosol in those from control mice. In cultured human ECs, TNF-α stimulation promoted Atox1 nuclear translocation within 15 min, which was associated with Atox1 binding to TNF-α receptor-associated factor 4 (TRAF4) in a Cu-dependent manner. TRAF4 depletion by siRNA significantly inhibited Atox1 nuclear translocation, p47phox expression, and ROS production as well as its downstream VCAM1/ICAM1 expression and monocyte adhesion to inflamed ECs, which were rescued by overexpression of nuclear targeted Atox1. Furthermore, Atox1 colocalized with TRAF4 at the nucleus in TNF-α-stimulated inflamed ECs and vessels. In summary, Cu-dependent Atox1 binding to TRAF4 plays an important role in Atox1 nuclear translocation and ROS-dependent inflammatory responses in TNF-α-stimulated ECs. Thus the Atox1-TRAF4 axis is a novel therapeutic target for vascular inflammatory disease such as atherosclerosis.
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Affiliation(s)
- Archita Das
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Varadarajan Sudhahar
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
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65
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Kimura M, Nagashima H, Okuyama Y, Ishii N, So T. TRAF2 and TRAF5 associated with the signal transducing receptor gp130 limit IL-6-driven transphosphorylation of JAK1 through the inhibition of proximal JAK-JAK interaction. Int Immunol 2019; 30:291-299. [PMID: 29668931 DOI: 10.1093/intimm/dxy029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/10/2018] [Indexed: 02/03/2023] Open
Abstract
Tumor necrosis factor receptor-associated factor 2 (TRAF2) and TRAF5 constitutively bind to glycoprotein 130 kDa (gp130) and inhibit IL-6-driven activation of signal transducer and activator of transcription 3 (STAT3) in CD4+ T cells, which limits the differentiation of pro-inflammatory IL-17-producing helper T cells that require IL-6-receptor (IL-6R) signals for their development. However, it is not known how the interaction between TRAF and gp130 negatively regulates STAT3 activity in the IL-6R complex. We hypothesized that TRAF proteins associated with gp130 might limit the activation of Janus kinase that is needed for the activation of STAT3. To test this, we transfected HEK293T cells to express gp130 and TRAF2 or TRAF5 together with two chimeric JAK1 proteins combined with either the N-terminal or the C-terminal protein fragment of firefly luciferase. Using this luciferase fragment complementation system, we found that the recovery of luciferase enzyme activity was coincident with proximal JAK1-JAK1 interaction and phosphorylation of JAK1 in the IL-6R complex and that the expression of TRAF protein significantly inhibited the recovery of luciferase activity. The binding of TRAF to gp130 via the C-terminal TRAF domain was essential for the inhibition. In accordance with this, upon stimulation of endogenous gp130 with a complex of IL-6 and IL-6R, Traf5-/- CD4+ T cells displayed significantly higher amounts of phosphorylated JAK1 than did their wild-type counterparts. Therefore, our results demonstrate that gp130-associated TRAF2 and TRAF5 inhibit the interaction between two JAK proteins in the IL-6R complex that is essential for initiating the JAK-STAT signaling pathway.
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Affiliation(s)
- Masanobu Kimura
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Hiroyuki Nagashima
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
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66
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Sequencing of Chinese castor lines reveals genetic signatures of selection and yield-associated loci. Nat Commun 2019; 10:3418. [PMID: 31366935 PMCID: PMC6668449 DOI: 10.1038/s41467-019-11228-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/27/2019] [Indexed: 02/06/2023] Open
Abstract
Oil produced by castor (Ricinus communis) has broad industrial applications. However, knowledge on the genetic diversity, especially genetic alterations that occurred during domestication and subsequent traits selection, of this oil crop is limited. Here, our population genomics analyses show that the Chinese castors have developed a geographic pattern, classified into the southern-, the middle-, and the northern-China groups. We detect a number of candidate genomic loci that are associated with the selection signals during the geographical differentiation and domestication. Using genome-wide association analysis, we identify candidate genes associated with nine agronomically important traits. One of the candidate genes encoding a glycosyltransferase related to cellulose and lignin biosynthesis is associated with both capsule dehiscence and endocarp thickness. We hypothesize that the abundance of cellulose or lignin in endocarp is an important factor for capsule dehiscence. Our results provide foundation for castor breeding and genetic study. Castor is an important industrial oil crop, but knowledge on its genetic diversity is limited. Here, Fan et al. show geographic pattern of Chinese castors that have developed during domestication by population genetic analyses, and reveal candidate genes associated with agronomically important traits.
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67
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Dai Y, Mao Z, Han X, Xu Y, Xu L, Yin L, Qi Y, Peng J. MicroRNA-29b-3p reduces intestinal ischaemia/reperfusion injury via targeting of TNF receptor-associated factor 3. Br J Pharmacol 2019; 176:3264-3278. [PMID: 31167039 DOI: 10.1111/bph.14759] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 05/07/2019] [Accepted: 05/25/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE The microRNA miR-29b-3p shows important roles in regulating apoptosis and inflammation. However, its effects on intestinal ischaemia/reperfusion (II/R) injury have not been reported. Here we have investigated the functions of miR-29b-3p on II/R injury on order to find drug targets to treat the injury. EXPERIMENTAL APPROACH Two models - in vitro hypoxia/reoxygenation (H/R) of IEC-6 cells; in vivo, II/R injury in C57BL/6 mice were used. Western blotting and dual-luciferase reporter assays were used and mimic and siRNA transfection tests were applied to assess the effects of miR-29b-3p on II/R injury via targeting TNF receptor-associated factor 3 (TRAF3). KEY RESULTS The H/R procedure decreased cell viability and promoted inflammation and apoptosis in IEC-6 cells, and the II/R procedure also promoted intestinal inflammation and apoptosis in mice. Expression levels of miR-29b-3p were decreased in H/R-induced cells and II/R-induced intestinal tissues of mice compared with control group or sham group, which directly targeted TRAF3. Decreased miR-29b-3p level markedly increased TRAF3 expression via activating TGF-α-activated kinase 1 phosphorylation, increasing NF-κB (p65) levels to promote inflammation, up-regulating Bcl2-associated X expression, and down-regulating Bcl-2 expression to trigger apoptosis. In addition, the miR-29b-3p mimetic and TRAF3 siRNA in IEC-6 cells markedly suppressed apoptosis and inflammation to alleviate II/R injury via inhibiting TRAF3 signallimg. CONCLUSIONS AND IMPLICATIONS The miR-29b-3p played a critical role in II/R injury, via targeting TRAF3, which should be considered as a significant drug target to treat the disease.
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Affiliation(s)
- Yan Dai
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Zhang Mao
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian, China.,Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China.,National-Local Joint Engineering Research Center for Drug Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China
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68
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Hong S, Liu D, Luo S, Fang W, Zhan J, Fu S, Zhang Y, Wu X, Zhou H, Chen X, Chen G, Zhang Z, Zheng Q, Li X, Chen J, Liu X, Lei M, Ye C, Wang J, Yang H, Xu X, Zhu S, Yang Y, Zhao Y, Zhou N, Zhao H, Huang Y, Zhang L, Wu K, Zhang L. The genomic landscape of Epstein-Barr virus-associated pulmonary lymphoepithelioma-like carcinoma. Nat Commun 2019; 10:3108. [PMID: 31311932 PMCID: PMC6635366 DOI: 10.1038/s41467-019-10902-w] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 06/10/2019] [Indexed: 12/19/2022] Open
Abstract
Pulmonary lymphoepithelioma-like carcinoma (LELC) is a rare and distinct subtype of primary lung cancer characterized by Epstein-Barr virus (EBV) infection. Herein, we reported the mutational landscape of pulmonary LELC using whole-exome sequencing, targeted deep sequencing and single-nucleotide polymorphism arrays. We identify a low degree of somatic mutation but widespread existence of copy number variations. We reveal predominant signature 2 mutations and frequent loss of type I interferon genes that are involved in the host-virus counteraction. Integrated analysis shows enrichment of genetic lesions affecting several critical pathways, including NF-κB, JAK/STAT, and cell cycle. Notably, multi-dimensional comparison unveils that pulmonary LELC resemble NPC but are clearly different from other lung cancers, natural killer/T-cell lymphoma or EBV-related gastric cancer in terms of genetic features. In all, our study illustrates a distinct genomic landscape of pulmonary LELC and provides a road map to facilitate genome-guided personalized treatment. The rare lung cancer subtype pulmonary lymphoepithelioma-like carcinoma is linked to Epstein-Barr virus infection. Here, the authors provide a mutational landscape for this cancer, showing a low burden of somatic mutations and high prevalence of copy number variations.
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Affiliation(s)
- Shaodong Hong
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Dongbing Liu
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Shuzhen Luo
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Wenfeng Fang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Jianhua Zhan
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Sha Fu
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 510120, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, 510120, Guangzhou, China
| | - Yaxiong Zhang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Xuan Wu
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,Peking University Shenzhen Hospital, 518036, Shenzhen, China
| | - Huaqiang Zhou
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Xi Chen
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Gang Chen
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Zhonghan Zhang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Qiufan Zheng
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Xiaobo Li
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China.,BGI Education Center, University of Chinese Academy of Sciences, 518083, Shenzhen, China
| | - Jinghao Chen
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China.,BGI Education Center, University of Chinese Academy of Sciences, 518083, Shenzhen, China
| | | | - Mengyue Lei
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Chen Ye
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Jian Wang
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Huanming Yang
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Xun Xu
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Shida Zhu
- BGI-Shenzhen, 518083, Shenzhen, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China
| | - Yunpeng Yang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Yuanyuan Zhao
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Ningning Zhou
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Hongyun Zhao
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Yan Huang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Lanjun Zhang
- State Key Laboratory of Oncology in South China, 510060, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China
| | - Kui Wu
- BGI-Shenzhen, 518083, Shenzhen, China. .,China National GeneBank-Shenzhen, BGI-Shenzhen, 518120, Shenzhen, China.
| | - Li Zhang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China. .,State Key Laboratory of Oncology in South China, 510060, Guangzhou, China. .,Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China.
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69
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BANK1 interacts with TRAF6 and MyD88 in innate immune signaling in B cells. Cell Mol Immunol 2019; 17:954-965. [PMID: 31243359 PMCID: PMC7608278 DOI: 10.1038/s41423-019-0254-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 05/31/2019] [Indexed: 12/13/2022] Open
Abstract
Evidence supports a possible role of BANK1 in innate immune signaling in B cells. In the present study, we investigated the interaction of BANK1 with two key mediators in interferon and inflammatory cytokine production, TRAF6 and MyD88. We revealed by coimmunoprecipitation (CoIP) analyses the binding of BANK1 with TRAF6 and MyD88, which were mediated by the BANK1 Toll/interleukin-1 receptor (TIR) domain. In addition, the natural BANK1–40C variant showed increased binding to MyD88. Next, we demonstrated in mouse splenic B cells that BANK1 colocalized with Toll-like receptor (TLR) 7 and TLR9 and that after stimulation with TLR7 and TLR9 agonists, the number of double-positive BANK1–TLR7, –TLR9, –TRAF6, and –MyD88 cells increased. Furthermore, we identified five TRAF6-binding motifs (BMs) in BANK1 and confirmed by point mutations and decoy peptide experiments that the C-terminal domain of BANK1-full-length (-FL) and the N-terminal domain of BANK1–Delta2 (-D2) are necessary for this binding. Functionally, we determined that the absence of the TIR domain in BANK1–D2 is important for its lysine (K)63-linked polyubiquitination and its ability to produce interleukin (IL)-8. Overall, our study describes a specific function of BANK1 in MyD88–TRAF6 innate immune signaling in B cells, clarifies functional differences between the two BANK1 isoforms and explains for the first time a functional link between autoimmune phenotypes including SLE and the naturally occurring BANK1–40C variant.
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70
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Qi Y, Zhao X, Chen J, Pradipta AR, Wei J, Ruan H, Zhou L, Hsung RP, Tanaka K. In vitro and in vivo cancer cell apoptosis triggered by competitive binding of Cinchona alkaloids to the RING domain of TRAF6. Biosci Biotechnol Biochem 2019; 83:1011-1026. [DOI: 10.1080/09168451.2018.1559030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ABSTRACT
TRAF6 is highly expressed in many tumors and plays an important role in the immune system. The aim of this study is to confirm anti-tumor activities of all naturally occurring Cinchona alkaloids that have been screened using computational docking program, and to validate the accuracy and specificity of the RING domain of TRAF6 as a potential anti-tumor target, and to explore their effect on the immune system. Results reported herein would demonstrate that Cinchona alkaloids could induce apoptosis in HeLa cells, inhibit the ubiquitination and phosphorylation of both AKT and TAK1, and up-regulate the ratio of Bax/Bcl-2. In addition, these compounds could induce apoptosis in vivo, and increase the secretion of TNF-α, IFN-γ, and IgG, while not significantly impacting the ratio of CD4+T/CD8+T. These investigations suggest that the RING domain of TRAF6 could serve as a de novo biological target for therapeutic treatment in cancers.
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Affiliation(s)
- Yonghao Qi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Xuan Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Jiaying Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Ambara R Pradipta
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, Wako, Saitama, Japan
| | - Jing Wei
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Haihua Ruan
- Tianjin University of Commerce, Tianjin, P.R. China
| | - Lijun Zhou
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Richard P Hsung
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, WI, USA
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, Wako, Saitama, Japan
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, WI, USA
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russia
- JST-PRESTO, Wako, Saitama, Japan
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71
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Son Y, Lee EM, Lee DY, Lee JH, Oh S. Longan fruit increase bone mineral density in zebrafish and ovariectomized rat by suppressing RANKL-induced osteoclast differentiation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 59:152910. [PMID: 30978650 DOI: 10.1016/j.phymed.2019.152910] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 03/23/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The receptor activator of nuclear factor-kappa B ligand (RANKL)-induced nuclear factor-kappa B (NF-κB) signaling pathway plays essential roles in osteoclast differentiation and may serve as an attractive target for the development of therapeutics for osteoporosis. PURPOSE This study aimed to identify plant extracts that attenuated RANKL-induced NF-κB signaling pathway and examine their anti-osteoporotic effects in animal model systems. METHODS Osteoclast differentiation was determined by western blot analysis, RT-PCR, and tartrate-resistant acid phosphatase (TRAP) assay. The effect of Longan (Dimocarpus longan Lour.) fruit extract (LFE) on bone mineral density was evaluated by calcein staining in zebrafish and micro-CT analysis in ovariectomized (OVX) rat. RESULTS LFE nullified RANKL-induced down-regulation of inhibitor of NF-κB, which keeps NF-κB sequestered in the cytosol, thereby inhibiting translocation of NF-κB to the nucleus, in RAW264.7 cells. In addition, LFE decreased the nuclear levels of c-Fos and nuclear factor of activated T-cells c1, which play crucial roles in RANKL-induced osteoclast differentiation, in RAW264.7 cells. LFE repressed RANKL-activated cathepsin K and TRAP expression in RAW264.7 cells, resulting in a reduction of the number of TRAP-positive multinucleated cells, without cytotoxicity. Furthermore, LFE increased bone mineralization in zebrafish and prevented bone loss in OVX rat. CONCLUSION Collectively, our findings suggest that LFE exerts its anti-osteoporotic activity through inhibition of osteoclast differentiation and may have potential as a herbal therapeutic or preventive agent for the treatment of osteoporosis.
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Affiliation(s)
- Younglim Son
- Department of Bio and Fermentation Convergence Technology, BK21PLUS Program, Kookmin University, Seoul 02707, Republic of Korea
| | - Eun Mi Lee
- Department of Bio and Fermentation Convergence Technology, BK21PLUS Program, Kookmin University, Seoul 02707, Republic of Korea
| | - Do Yup Lee
- Department of Bio and Fermentation Convergence Technology, BK21PLUS Program, Kookmin University, Seoul 02707, Republic of Korea
| | - Jong Hun Lee
- Department of Food Science and Biotechnology, CHA University, Seongnam 13488, Republic of Korea.
| | - Sangtaek Oh
- Department of Bio and Fermentation Convergence Technology, BK21PLUS Program, Kookmin University, Seoul 02707, Republic of Korea.
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72
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Garcia-Carbonell R, Yao SJ, Das S, Guma M. Dysregulation of Intestinal Epithelial Cell RIPK Pathways Promotes Chronic Inflammation in the IBD Gut. Front Immunol 2019; 10:1094. [PMID: 31164887 PMCID: PMC6536010 DOI: 10.3389/fimmu.2019.01094] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/29/2019] [Indexed: 12/22/2022] Open
Abstract
Crohn's disease (CD) and ulcerative colitis (UC) are common intestinal bowel diseases (IBD) characterized by intestinal epithelial injury including extensive epithelial cell death, mucosal erosion, ulceration, and crypt abscess formation. Several factors including activated signaling pathways, microbial dysbiosis, and immune deregulation contribute to disease progression. Although most research efforts to date have focused on immune cells, it is becoming increasingly clear that intestinal epithelial cells (IEC) are important players in IBD pathogenesis. Aberrant or exacerbated responses to how IEC sense IBD-associated microbes, respond to TNF stimulation, and regenerate and heal the injured mucosa are critical to the integrity of the intestinal barrier. The role of several genes and pathways in which single nucleotide polymorphisms (SNP) showed strong association with IBD has recently been studied in the context of IEC. In patients with IBD, it has been shown that the expression of specific dysregulated genes in IECs plays an important role in TNF-induced cell death and microbial sensing. Among them, the NF-κB pathway and its target gene TNFAIP3 promote TNF-induced and receptor interacting protein kinase (RIPK1)-dependent intestinal epithelial cell death. On the other hand, RIPK2 functions as a key signaling protein in host defense responses induced by activation of the cytosolic microbial sensors nucleotide-binding oligomerization domain-containing proteins 1 and 2 (NOD1 and NOD2). The RIPK2-mediated signaling pathway leads to the activation of NF-κB and MAP kinases that induce autophagy following infection. This article will review these dysregulated RIPK pathways in IEC and their role in promoting chronic inflammation. It will also highlight future research directions and therapeutic approaches involving RIPKs in IBD.
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Affiliation(s)
| | - Shih-Jing Yao
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Soumita Das
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Monica Guma
- Medicine, School of Medicine, University of California, San Diego, San Diego, CA, United States
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73
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Zhang J, Zhu Y, Chen Z, Li C, Zhao X, Kong X. Molecular cloning and expression analysis of MyD88 and TRAF6 in Qihe crucian carp Carassius auratus. FISH & SHELLFISH IMMUNOLOGY 2019; 87:829-838. [PMID: 30790663 DOI: 10.1016/j.fsi.2019.02.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/11/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Myeloid differentiation factor 88 (MyD88) and tumor necrosis factor receptor-associated factor 6 (TRAF6) are two critical signal transducers in toll-like receptor (TLR) pathway. In the present study, we identified and characterized the homologues of MyD88 and TRAF6 in Qihe crucian carp Carassius auratus, termed as CaMyD88 and CaTRAF6, respectively, and examined their roles during pathogenic infection. Full-length cDNA of CaMyD88 was 2463 bp, including a 191 bp 5'-untranslated region (UTR), a 1417 bp 3'-UTR, and an 855 bp open reading frame (ORF) encoding for a putative protein with 284 amino acids. Full-length cDNA of CaTRAF6 was identified to be 2555 bp, consisting of a 52 bp 5'-UTR, an 871 bp 3'-UTR, and a 1632 bp ORF encoding a protein of 543 amino acids. Deduced amino acid sequences of CaMyD88 and CaTRAF6 contained the typical domains (CaMyD88: death domain and TIR domain; CaTRAF6: one RING-type zinc finger domain, two TRAF-type zinc finger domains, one coiled-coil region, and one conserved C-terminal meprin and TRAF homology domain) as in other fish. Quantitative Real-Time PCR (qRT-PCR) analysis revealed that both CaMyD88 and CaTRAF6 were ubiquitously expressed throughout the development stages and appeared to be developmentally regulated. In addition, CaMyD88 and CaTRAF6 had a broadly distribution of expression in all examined eleven tissues of healthy fish, although the transcript levels varied among the different tissues. Moreover, it was found that mRNA expressions of CaMyD88 and CaTRAF6 were generally up-regulated after stimulation by polyI:C, flagellin, and Aeromonas hydrophila in spite of the down-regulation appeared at some time points or tissues. These results indicated that CaMyD88 and CaTRAF6 play the critical roles in the immune defense of Qihe crucian carp against pathogenic invasion. The present findings will provide the valuable information for understanding the innate immune responses of Qihe crucian carp and contribute to develop the preventive way against pathogens.
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Affiliation(s)
- Jie Zhang
- College of Fisheries, Henan Normal University, Xinxiang, 453007, PR China
| | - Yachen Zhu
- College of Fisheries, Henan Normal University, Xinxiang, 453007, PR China
| | - Zhuo Chen
- College of Life Science, Henan Normal University, Xinxiang, 453007, PR China
| | - Chunjing Li
- College of Fisheries, Henan Normal University, Xinxiang, 453007, PR China
| | - Xianliang Zhao
- College of Fisheries, Henan Normal University, Xinxiang, 453007, PR China
| | - Xianghui Kong
- College of Fisheries, Henan Normal University, Xinxiang, 453007, PR China.
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Abstract
Bone is a crucial element of the skeletal-locomotor system, but also functions as an immunological organ that harbors hematopoietic stem cells (HSCs) and immune progenitor cells. Additionally, the skeletal and immune systems share a number of regulatory molecules, including cytokines and signaling molecules. Osteoimmunology was created as an interdisciplinary field to explore the shared molecules and interactions between the skeletal and immune systems. In particular, the importance of an inseparable link between the two systems has been highlighted by studies on the pathogenesis of rheumatoid arthritis (RA), in which pathogenic helper T cells induce the progressive destruction of multiple joints through aberrant expression of receptor activator of nuclear factor (NF)-κB ligand (RANKL). The conceptual bridge of osteoimmunology provides not only a novel framework for understanding these biological systems but also a molecular basis for the development of therapeutic approaches for diseases of bone and/or the immune system.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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75
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Yang M, Han R, Ni LY, Luo XC, Li AX, Dan XM, Li YW. Molecular characteristics and functional study of tumor necrosis factor receptor-associated factor 2 from the orange-spotted grouper (Epinephelus coioides). FISH & SHELLFISH IMMUNOLOGY 2019; 84:726-732. [PMID: 30393173 DOI: 10.1016/j.fsi.2018.10.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/09/2018] [Accepted: 10/26/2018] [Indexed: 06/08/2023]
Abstract
In mammals, tumor necrosis factor receptor-associated factor 2 (TRAF2) is a crucial intracellular adaptor protein, which performs a vital role in numerous signaling pathways that activate NF-κB, MAPKs, and IRFs. In the present study, three TRAF2 sequences were identified from the orange-spotted grouper (Epinephelus coioides), and named EcTRAF2-1, EcTRAF2-2, and EcTRAF2-3. These sequences contained conserved structure features that were similar to those of mammals. EcTRAF2-1 shared relatively low sequence identity with the other two EcTRAF2s. In healthy E. coioides, EcTRAF2s were widely expressed in all tissues tested, but with distinct expression profiles. After infection with Cryptocaryon irritans, EcTRAF2s was markedly upregulated in the gill and head kidney at most time points, implying that EcTRAF2s may be involved in host defense against C. irritans infection. In HEK293T cells, EcTRAF2s were scattered in the cytoplasm. EcTRAF2-1 and EcTRAF2-2 increased the activity of NF-κB, while EcTRAF2-3 reduced NF-κB activation mediated by EcTRAF2-1 implying that EcTRAF2-3 might be a negative regulator of EcTRAF2-1.
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Affiliation(s)
- Man Yang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China, Agricultural University, Guangzhou, 510642, China
| | - Rui Han
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China, Agricultural University, Guangzhou, 510642, China
| | - Lu-Yun Ni
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China, Agricultural University, Guangzhou, 510642, China
| | - Xiao-Chun Luo
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China
| | - An-Xing Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Lab for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong Province, PR China
| | - Xue-Ming Dan
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China, Agricultural University, Guangzhou, 510642, China.
| | - Yan-Wei Li
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China, Agricultural University, Guangzhou, 510642, China.
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Cheerathodi MR, Meckes DG. The Epstein-Barr virus LMP1 interactome: biological implications and therapeutic targets. Future Virol 2018; 13:863-887. [PMID: 34079586 DOI: 10.2217/fvl-2018-0120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The oncogenic potential of Epstein-Barr virus (EBV) is mostly attributed to latent membrane protein 1 (LMP1), which is essential and sufficient for transformation of fibroblast and primary lymphocytes. LMP1 expression results in the activation of multiple signaling cascades like NF-ΚB and MAP kinases that trigger cell survival and proliferative pathways. LMP1 specific signaling events are mediated through the recruitment of a number of interacting proteins to various signaling domains. Based on these properties, LMP1 is an attractive target to develop effective therapeutics to treat EBV-related malignancies. In this review, we focus on LMP1 interacting proteins, associated signaling events, and potential targets that could be exploited for therapeutic strategies.
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Affiliation(s)
- Mujeeb R Cheerathodi
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, 32306
| | - David G Meckes
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, 32306
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77
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Kang L, Wang L, Wu C, Jiang L. Molecular characterization and expression analysis of tumor necrosis factor receptor-associated factors 3 and 6 in large yellow croaker (Larimichthys crocea). FISH & SHELLFISH IMMUNOLOGY 2018; 82:27-31. [PMID: 30075247 DOI: 10.1016/j.fsi.2018.07.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/20/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
The large yellow croaker (Larimichthys crocea) has a well-developed innate immune system. To gain a better understanding of the defense mechanisms involved in this system, we studied tumor necrosis factor receptor-associated factors (TRAFs), which play important roles in the Toll-like receptor (TLR) pathway. We characterized the full-length open reading frames and protein structures of TRAF3 and TRAF6 to determine their identities, and conducted phylogenetic analysis to determine their evolutionary relationships. To assess the roles of TRAFs in innate immune responses in the large yellow croaker, we performed quantitative reverse-transcription PCR (qRT-PCR) to characterize expression profiles in a range of tissues at different stages after challenge with polyinosinic polycytidylic acid (poly I:C) and Vibrio anguillarum. Following poly I:C challenge, the expression levels of TRAF3 and TRAF6 were highest in the kidneys and lowest in the spleen, whereas after infection with V. anguillarum, TRAF6 expression was the highest in the kidneys and lowest in the liver.
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Affiliation(s)
- Lisen Kang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Luping Wang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Changwen Wu
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Lihua Jiang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China.
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Oya A, Katsuyama E, Morita M, Sato Y, Kobayashi T, Miyamoto K, Nishiwaki T, Funayama A, Fujita Y, Kobayashi T, Matsumoto M, Nakamura M, Kanaji A, Miyamoto T. Tumor necrosis factor receptor-associated factor 6 is required to inhibit foreign body giant cell formation and activate osteoclasts under inflammatory and infectious conditions. J Bone Miner Metab 2018; 36:679-690. [PMID: 29273889 DOI: 10.1007/s00774-017-0890-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 11/15/2017] [Indexed: 12/14/2022]
Abstract
Osteoclasts and foreign body giant cells (FBGCs) are derived from common progenitors and share properties such as multi-nucleation capacity induced by cell-cell fusion; however, mechanisms underlying lineage determination between these cells remain unclear. Here we show that, under inflammatory conditions, osteoclasts are stimulated in a manner similar to M1 macrophages, while formation of FBGCs, which exhibit M2-like phenotypes, is inhibited in a manner similar to that seen in M1/M2 macrophage polarization. FBGC/osteoclast polarization was inhibited by conditional knockout of tumor necrosis factor receptor associated factor 6 (Traf6) in adults in vivo and in vitro. Traf6-null mice were previously reported to die soon after birth, but we found that Traf6 deletion in adults did not cause lethality but rather inhibited osteoclast activation and prevented FBGC inhibition under inflammatory conditions. Accordingly, basal osteoclastogenesis was significantly inhibited by Traf6 deletion in vivo and in vitro and accompanied by increased bone mass. Lipopolysaccharide-induced osteoclast formation and osteolysis were significantly inhibited in Traf6 conditional knockout mice. Our results suggest that Traf6 plays a crucial role in regulating M1 osteoclast and M2 FBGC polarization and is a potential therapeutic target in blocking FBGC inhibition, antagonizing osteolysis in inflammatory conditions, and increasing bone mass without adverse effects in adults.
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Affiliation(s)
- Akihito Oya
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Eri Katsuyama
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Mayu Morita
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuiko Sato
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Advanced Therapy for Musculoskeletal Disorders, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tami Kobayashi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Musculoskeletal Reconstruction and Regeneration Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kana Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toru Nishiwaki
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Atsushi Funayama
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoshinari Fujita
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takashi Kobayashi
- Department of Infectious Diseases Control, Faculty of Medicine, Oita University, 1-1 Hasamamachi, Idaigaoka, Yufu, Oita, 879-5593, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Arihiko Kanaji
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
- Department of Advanced Therapy for Musculoskeletal Disorders, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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79
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TRAF4 binds to the juxtamembrane region of EGFR directly and promotes kinase activation. Proc Natl Acad Sci U S A 2018; 115:11531-11536. [PMID: 30352854 DOI: 10.1073/pnas.1809599115] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The activation of the epidermal growth factor receptor (EGFR) is crucial for triggering diverse cellular functions, including cell proliferation, migration, and differentiation, and up-regulation of EGFR expression or activity is a key factor in triggering the development of cancer. Here we show that overexpression of a scaffold protein, tumor necrosis factor receptor (TNF-R)-associated factor 4 (TRAF4), promotes EGF-induced autophosphorylation of EGFR (activation) and downstream signaling, whereas TRAF4 deficiency attenuates EGFR activation and EGF-driven cell proliferation. Using structure-based sequence alignment and NMR spectroscopy, we identified a TRAF4 binding site in the C-terminal half of the juxtamembrane (JM) segment of EGFR, a region known to promote asymmetric dimerization and subsequent activation. Deletion of the TRAF4 binding site led to dramatic defects in EGFR activation and EGF-driven cell proliferation. Specific point mutations in the TRAF4 binding site also resulted in significant attenuation of EGFR activation. Detailed structural examination of the inactive versus active forms of EGFR suggests that TRAF4 binding probably induces a conformational rearrangement of the JM region to promote EGFR dimerization. These results identify a novel mechanism of TRAF4-mediated EGFR activation and signaling.
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80
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Pei J, Kinch LN, Grishin NV. FlyXCDB—A Resource for Drosophila Cell Surface and Secreted Proteins and Their Extracellular Domains. J Mol Biol 2018; 430:3353-3411. [DOI: 10.1016/j.jmb.2018.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 05/31/2018] [Accepted: 06/02/2018] [Indexed: 02/06/2023]
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81
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Qi P, He Y, Liao Z, Dong W, Xia H. Molecular cloning and functional analysis of tumor necrosis factor receptor-associated factor 6 (TRAF6) in thick shell mussel, Mytilus coruscus. FISH & SHELLFISH IMMUNOLOGY 2018; 80:631-640. [PMID: 29859313 DOI: 10.1016/j.fsi.2018.05.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/20/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6) is one of the key adapter molecules in Toll-like receptor signal transduction that triggers downstream cascades involved in innate immunity. Despite of the well study in vertebrates, there is few data ascribe to this TRAF member in invertebrates, especially in bivalves. In the present study, a novel TRAF6 homologue termed McTRAF6 was firstly characterized in Mytilus coruscus. Like its counterparts in mammals, McTRAF6 shared the domain topology containing one RING domain, two zinc finger domains, one coiled-coil region and a MATH domain. McTRAF6 transcripts predominantly expressed in gills, digestive glands and hemocytes in M. coruscus, and were significantly up-regulated in hemocytes after challenge with lipopolysaccharide (LPS) and polyinosine-polycytidylic acid (poly I:C). Further, the subcellular localization in cytoplasm and the activation of Nk-κB or ISRE luciferase reporter by overexpressed McTRAF6 were identified in HEK293T cells. These results collectively indicate that McTRAF6 is a member of TRAF6 subfamily and plays a potential role in immune defense system against pathogenic agents invasions in thick shell mussel. To our knowledge, this is the first report on component of TLR signaling pathway in thick shell mussel, providing further evidence for the existence of TLR pathway in M. coruscus and contribute to clarify the innate immune system of thick shell mussel.
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Affiliation(s)
- Pengzhi Qi
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China.
| | - Yuehua He
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China
| | - Zhi Liao
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China
| | - Wenqiang Dong
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China
| | - Hu Xia
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan University of Arts and Science, Hunan Changde, 415000, China
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82
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Nagashima H, Ishii N, So T. Regulation of Interleukin-6 Receptor Signaling by TNF Receptor-Associated Factor 2 and 5 During Differentiation of Inflammatory CD4 + T Cells. Front Immunol 2018; 9:1986. [PMID: 30214449 PMCID: PMC6126464 DOI: 10.3389/fimmu.2018.01986] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/13/2018] [Indexed: 12/21/2022] Open
Abstract
There is growing evidence that tumor necrosis factor (TNF) receptor-associated factors (TRAFs) bind to unconventional membrane-bound receptors in many cell types and control their key signaling activity, in both positive and negative ways. TRAFs function in a variety of biological processes in health and disease, and dysregulation of TRAF expression or activity often leads to a patho-physiological outcome. We have identified a novel attribute of TRAF2 and TRAF5 in interleukin-6 (IL-6) receptor signaling in CD4+ T cells. TRAF2 and TRAF5 are highly expressed by naïve CD4+ T cells and constitutively bind to the signal-transducing receptor common chain gp130 via the C-terminal TRAF domain. The binding between TRAF and gp130 limits the early signaling activity of the IL-6 receptor complex by preventing proximal interaction of Janus kinases (JAKs) associated with gp130. In this reason, TRAF2 and TRAF5 in naïve CD4+ T cells negatively regulate IL-6-mediated activation of signal transducer and activator of transcription 3 (STAT3) that is required for the development of IL-17-secreting CD4+ TH17 cells. Indeed, Traf2-knockdown in differentiating Traf5−/− CD4+ T cells strongly promotes TH17 development. Traf5−/− donor CD4+ T cells exacerbate the development of neuroinflammation in experimental autoimmune encephalomyelitis (EAE) in wild-type recipient mice. In this review, we summarize the current understanding of the role for TRAF2 and TRAF5 in the regulation of IL-6-driven differentiation of pro-inflammatory CD4+ T cells, especially focusing on the molecular mechanism by which TRAF2 and TRAF5 inhibit the JAK-STAT pathway that is initiated in the IL-6 receptor signaling complex.
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Affiliation(s)
- Hiroyuki Nagashima
- Lymphocyte Cell Biology Section, Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, United States.,Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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83
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Park HH. Structure of TRAF Family: Current Understanding of Receptor Recognition. Front Immunol 2018; 9:1999. [PMID: 30214450 PMCID: PMC6125299 DOI: 10.3389/fimmu.2018.01999] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/14/2018] [Indexed: 12/20/2022] Open
Abstract
Tumor necrosis factor receptor–associated factor (TRAF) proteins are key signaling molecules that function in various cellular signaling events including immune response, cell death and survival, development, and thrombosis. Their roles in cellular signaling are mediated mostly by direct interactions with various receptors via the TRAF domain. To determine how specific TRAF domains can interact with various receptors with a limited binding interface and how similar binding interfaces of TRAF family members can recognize their specific binding partners, extensive structural studies on TRAF family proteins have been conducted for several decades. In this review, we discuss the current understanding of the structural and molecular diversity of the TRAF domain and TRAF-binding motifs in many receptors according to available structural information.
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Affiliation(s)
- Hyun H Park
- College of Pharmacy, Chung-Ang University, Seoul, South Korea
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84
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Gupta I, Varshney NK, Khan S. Emergence of Members of TRAF and DUB of Ubiquitin Proteasome System in the Regulation of Hypertrophic Cardiomyopathy. Front Genet 2018; 9:336. [PMID: 30186311 PMCID: PMC6110912 DOI: 10.3389/fgene.2018.00336] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/03/2018] [Indexed: 01/10/2023] Open
Abstract
The ubiquitin proteasome system (UPS) plays an imperative role in many critical cellular processes, frequently by mediating the selective degradation of misfolded and damaged proteins and also by playing a non-degradative role especially important as in many signaling pathways. Over the last three decades, accumulated evidence indicated that UPS proteins are primal modulators of cell cycle progression, DNA replication, and repair, transcription, immune responses, and apoptosis. Comparatively, latest studies have demonstrated a substantial complexity by the UPS regulation in the heart. In addition, various UPS proteins especially ubiquitin ligases and proteasome have been identified to play a significant role in the cardiac development and dynamic physiology of cardiac pathologies such as ischemia/reperfusion injury, hypertrophy, and heart failure. However, our understanding of the contribution of UPS dysfunction in the plausible development of cardiac pathophysiology and the complete list of UPS proteins regulating these afflictions is still in infancy. The recent emergence of the roles of TNF receptor-associated factor (TRAFs) and deubiquitinating enzymes (DUBs) superfamily in hypertrophic cardiomyopathy has enhanced our knowledge. In this review, we have mainly compiled the TRAF superfamily of E3 ligases and few DUBs proteins with other well-documented E3 ligases such as MDM2, MuRF-1, Atrogin-I, and TRIM 32 that are specific to myocardial hypertrophy. In this review, we also aim to highlight their expression profile following physiological and pathological stimulation leading to the onset of hypertrophic phenotype in the heart that can serve as biomarkers and the opportunity for the development of novel therapies.
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Affiliation(s)
- Ishita Gupta
- Structural Immunology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.,Drug Discovery Research Center, Translational Health Science and Technology Institute, Faridabad, India
| | - Nishant K Varshney
- Drug Discovery Research Center, Translational Health Science and Technology Institute, Faridabad, India
| | - Sameena Khan
- Drug Discovery Research Center, Translational Health Science and Technology Institute, Faridabad, India
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85
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In Vitro Inhibitory Mechanism Effect of TRAIP on the Function of TRAF2 Revealed by Characterization of Interaction Domains. Int J Mol Sci 2018; 19:ijms19082457. [PMID: 30127245 PMCID: PMC6121587 DOI: 10.3390/ijms19082457] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 11/16/2022] Open
Abstract
TRAF-interacting protein (TRAIP), a negative regulator of TNF-induced-nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) activation, inhibits adaptor protein TRAF2 by direct interaction and is critical in apoptosis, cell proliferation, antiviral response, and embryonic development. Although the critical function of TRAIP in NF-κB signaling is well-known, the molecular inhibitory mechanism of TRAIP remains unclear. We found that the TRAIP coiled-coil domain altered its stoichiometry between dimer and trimer in a concentration-dependent manner. Additionally, the TRAIP RING domain induced even higher-ordered assembly, which was necessary for interacting with the TRAF-N domain of TRAF2 but not TRAF1. Characterization of the TRAF-N domains of TRAF1 and TRAF2, the tentative TRAIP-binding region of TRAFs, suggested the molecular basis of the inhibitory effect of TRAIP on TRAF2 in NF-κB signaling.
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86
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Bulatov E, Valiullina A, Sayarova R, Rizvanov A. Promising new therapeutic targets for regulation of inflammation and immunity: RING-type E3 ubiquitin ligases. Immunol Lett 2018; 202:44-51. [PMID: 30099009 DOI: 10.1016/j.imlet.2018.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 07/24/2018] [Accepted: 08/08/2018] [Indexed: 02/07/2023]
Abstract
Ubiquitin-proteasome system (UPS) is a primary signaling pathway for regulation of protein turnover and removal of misfolded proteins in eukaryotic cells. Enzymes of the UPS pathway - E1 activating, E2 conjugating, E3 ligating - act together to covalently tag substrate proteins with a chain of ubiquitins, small regulatory proteins. The poly-ubiquitin chain then serves as a recognition motif for 26S proteasome to recognize and degrade the substrate. In recent years UPS has emerged as attractive enzymatic cascade for development of novel therapeutics against various human diseases. Building on the previous success of targeting this pathway in cancer - the broader scientific community is currently looking for ways to elucidate functions of E3 ligases, substrate-specific members of the UPS. RING-type E3 ubiquitin ligases, the largest class of E3s, represent prospective targets for small molecule modulation and their importance is reinforced by ever growing evidence of playing role in non-cancer diseases, primarily associated with inflammatory and immune disorders. In this review, we aim to briefly cover the current knowledge of biological functions of RING-type E3 ligases in inflammation and immunity.
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Affiliation(s)
- Emil Bulatov
- Kazan Federal University, Kazan, Russian Federation.
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87
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The genetics and molecular pathogenesis of systemic lupus erythematosus (SLE) in populations of different ancestry. Gene 2018; 668:59-72. [DOI: 10.1016/j.gene.2018.05.041] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 05/13/2018] [Indexed: 01/21/2023]
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88
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Tang M, Tian L, Luo G, Yu X. Interferon-Gamma-Mediated Osteoimmunology. Front Immunol 2018; 9:1508. [PMID: 30008722 PMCID: PMC6033972 DOI: 10.3389/fimmu.2018.01508] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/18/2018] [Indexed: 02/05/2023] Open
Abstract
Osteoimmunology is the interdiscipline that focuses on the relationship between the skeletal and immune systems. They are interconnected by shared signal pathways and cytokines. Interferon-gamma (IFN-γ) plays important roles in immune responses and bone metabolism. IFN-γ enhances macrophage activation and antigen presentation. It regulates antiviral and antibacterial immunity as well as signal transduction. IFN-γ can promote osteoblast differentiation and inhibit bone marrow adipocyte formation. IFN-γ plays dual role in osteoclasts depending on its stage. Furthermore, IFN-γ is an important pathogenetic factor in some immune-mediated bone diseases including rheumatoid arthritis, postmenopausal osteoporosis, and acquired immunodeficiency syndrome. This review will discuss the contradictory findings of IFN-γ in osteoimmunology and its clinical application potential.
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Affiliation(s)
- Mengjia Tang
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Li Tian
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guojing Luo
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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89
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Wang Z, Liu Y, Huang S, Fang M. TRAF
6 interacts with and ubiquitinates
PIK
3
CA
to enhance
PI
3K activation. FEBS Lett 2018; 592:1882-1892. [DOI: 10.1002/1873-3468.13080] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/19/2018] [Accepted: 04/23/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Zixi Wang
- Division of Cell Biology College of Life Sciences Peking University Beijing China
- Joint Center for Life Sciences Peking University Beijing China
| | - Yuxiang Liu
- Division of Cell Biology College of Life Sciences Peking University Beijing China
- Joint Center for Life Sciences Peking University Beijing China
| | - Song Huang
- National Institute of Biological Sciences Beijing China
| | - Min Fang
- Division of Cell Biology College of Life Sciences Peking University Beijing China
- Joint Center for Life Sciences Peking University Beijing China
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90
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Yuan J, Wang Z, Zou D, Peng Q, Peng R, Zou F. Expression profiling of planarians shed light on a dual role of programmed cell death during the regeneration. J Cell Biochem 2018; 119:5875-5884. [PMID: 29575081 DOI: 10.1002/jcb.26779] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/02/2018] [Indexed: 01/20/2023]
Abstract
Most animals hold the ability to regenerate damaged cells, tissues, and even any lost part of their bodies. To date, there is little known about the precise regulatory mechanism of regeneration and many fundamental questions remain unanswered. To further understand the precise regulatory mechanism of regeneration, we used planarian Dugesia japonica as a model and sequenced the transcriptomes of their regenerated tissues at different regeneration stages. Through de novo assembly and expression profiling, we found that Heat shock protein and MAPK pathway were involved into early response of regeneration in D. japonica. In addition, immune response, cell proliferation, and migration were activated during regeneration. Of notes, our results revealed a specific functional role of programmed cell death (PCD) in regeneration of D. japonica. PCD may not only remove the damaged and superfluous tissues for further patterning with regenerated tissues, but also provide signals to trigger neoblasts proliferation and differentiation directly. Together, our results revealed Heat shock protein and MAPK pathway mediated early response of regeneration and found a dual role of PCD in regeneration D. japonica. Meanwhile, we constructed regulatory networks of apoptosis, autophagy, and related signaling pathways and proposed a schematic model, which provided a global landscape of regeneration.
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Affiliation(s)
- Junsong Yuan
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Zhihong Wang
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Di Zou
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Quekun Peng
- Department of Biomedical Science, Chengdu Medical College, Chengdu, Sichuan, China
| | - Rui Peng
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Fangdong Zou
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, P.R. China
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91
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Wang L, Song X, Song L. The oyster immunity. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 80:99-118. [PMID: 28587860 DOI: 10.1016/j.dci.2017.05.025] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/21/2017] [Accepted: 05/21/2017] [Indexed: 06/07/2023]
Abstract
Oysters, the common name for a number of different bivalve molluscs, are the worldwide aquaculture species and also play vital roles in the function of ecosystem. As invertebrate, oysters have evolved an integrated, highly complex innate immune system to recognize and eliminate various invaders via an array of orchestrated immune reactions, such as immune recognition, signal transduction, synthesis of antimicrobial peptides, as well as encapsulation and phagocytosis of the circulating haemocytes. The hematopoietic tissue, hematopoiesis, and the circulating haemocytes have been preliminary characterized, and the detailed annotation of the Pacific oyster Crassostrea gigas genome has revealed massive expansion and functional divergence of innate immune genes in this animal. Moreover, immune priming and maternal immune transfer are reported in oysters, suggesting the adaptability of invertebrate immunity. Apoptosis and autophagy are proved to be important immune mechanisms in oysters. This review will summarize the research progresses of immune system and the immunomodulation mechanisms of the primitive catecholaminergic, cholinergic, neuropeptides, GABAergic and nitric oxidase system, which possibly make oysters ideal model for studying the origin and evolution of immune system and the neuroendocrine-immune regulatory network in lower invertebrates.
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Affiliation(s)
- Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, DalianOcean University, Dalian 116023, China
| | - Xiaorui Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, DalianOcean University, Dalian 116023, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, DalianOcean University, Dalian 116023, China.
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92
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Cullell N, Muiño E, Carrera C, Torres N, Krupinski J, Fernandez-Cadenas I. Role of TRAF3 in neurological and cardiovascular diseases: an overview of recent studies. Biomol Concepts 2018; 8:197-202. [PMID: 28753533 DOI: 10.1515/bmc-2017-0008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/10/2017] [Indexed: 12/17/2022] Open
Abstract
Tumour necrosis factor receptor-associated factor 3 (TRAF3) is a member of the TRAF adaptor protein family, which exerts different effects on the cell depending on the receptor to which it binds and the cell type in which it is expressed. TRAF3 is a major regulator of the innate immune response. To perform its functions properly, TRAF3 is transcriptionally and epigenetically regulated. At the transcriptional level, TRAF3 expression has been associated with neurological and cardiovascular diseases including stroke, among other pathologies. Epigenetic modifications of TRAF3 have been observed at the histone and DNA levels. It has been observed that acetylation of TRAF3, as well as other NF-κβ target genes, is associated with cardiac hypertrophy. Furthermore, TRAF3 methylation has been associated with vascular recurrence after ischemic stroke in patients treated with clopidogrel. In this overview, we summarise the most interesting studies related to transcriptional and epigenetic regulation of TRAF3 focusing on those studies performed in neurological and cardiovascular diseases.
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93
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Lee NK. RANK Signaling Pathways and Key Molecules Inducing Osteoclast Differentiation. ACTA ACUST UNITED AC 2017. [DOI: 10.15616/bsl.2017.23.4.295] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Na Kyung Lee
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Chungnam 31538, Korea
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Lalani AI, Zhu S, Gokhale S, Jin J, Xie P. TRAF molecules in inflammation and inflammatory diseases. ACTA ACUST UNITED AC 2017. [PMID: 29527458 DOI: 10.1007/s40495-017-0117-y] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Purpose of Review This review presents an overview of the current knowledge of TRAF molecules in inflammation with an emphasis on available human evidence and direct in vivo evidence of mouse models that demonstrate the contribution of TRAF molecules in the pathogenesis of inflammatory diseases. Recent Findings The tumor necrosis factor receptor (TNF-R)-associated factor (TRAF) family of cytoplasmic proteins was initially identified as signaling adaptors that bind directly to the intracellular domains of receptors of the TNF-R superfamily. It is now appreciated that TRAF molecules are widely employed in signaling by a variety of adaptive and innate immune receptors as well as cytokine receptors. TRAF-dependent signaling pathways typically lead to the activation of nuclear factor-κBs (NF-κBs), mitogen-activated protein kinases (MAPKs), or interferon-regulatory factors (IRFs). Most of these signaling pathways have been linked to inflammation, and therefore TRAF molecules were expected to regulate inflammation and inflammatory responses since their discovery in 1990s. However, direct in vivo evidence of TRAFs in inflammation and especially in inflammatory diseases had been lacking for many years, partly due to the difficulty imposed by early lethality of TRAF2-/-, TRAF3-/-, and TRAF6-/- mice. With the creation of conditional knockout and lineage-specific transgenic mice of different TRAF molecules, our understanding about TRAFs in inflammation and inflammatory responses has rapidly advanced during the past decade. Summary Increasing evidence indicates that TRAF molecules are versatile and indispensable regulators of inflammation and inflammatory responses and that aberrant expression or function of TRAFs contributes to the pathogenesis of inflammatory diseases.
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Affiliation(s)
- Almin I Lalani
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, New Jersey 08854
- Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, New Jersey 08854
| | - Sining Zhu
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, New Jersey 08854
- Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, New Jersey 08854
| | - Samantha Gokhale
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, New Jersey 08854
- Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, New Jersey 08854
| | - Juan Jin
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, New Jersey 08854
- Department of Pharmacology, Anhui Medical University, Meishan Road 81st, Shushan District, Hefei, Anhui province, China
| | - Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, New Jersey 08854
- Member, Rutgers Cancer Institute of New Jersey
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95
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Qu F, Xiang Z, Zhou Y, Qin Y. A molluscan TNF receptor-associated factor 2 (TRAF2) was involved in host defense against immune challenges. FISH & SHELLFISH IMMUNOLOGY 2017; 71:105-115. [PMID: 28986217 DOI: 10.1016/j.fsi.2017.09.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/23/2017] [Accepted: 09/29/2017] [Indexed: 06/07/2023]
Abstract
Tumor necrosis factor (TNF) receptor-associated factor 2 (TRAF2) is a member of the TRAF superfamily that acted as a key signal transduction protein and has been implicated in inflammatory and apoptosis processes in mammals. However, identification of TRAF2s in invertebrates is very limited and its function, in particular that under immune challenges, is still unknown. In this report, a molluscan TRAF2 gene (referred to as AwTRAF2) was cloned and characterized from the freshwater bivalve, Anodonta woodiana. The open reading frame (ORF) of AwTRAF2 was 1683 bp in length, which encoded a putative 560 amino acid-protein. The deduced AwTRAF2 sequence shared similar structural characteristics and close evolutionary relationship with mollusk TRAF2s. The tissue-specific expression analysis revealed that AwTRAF2 mRNA was broadly expressed in all tested tissues, with high expression in gill and hepatopancreas. In addition, in vivo injection experiments directly showed that AwTRAF2 mRNA levels in hepatopancreas were significantly up-regulated in response to bacterial pathogen (Vibrio alginolyticus and Staphylococcus aureus) and PAMPs (Lipopolysaccharides and Peptidoglycan) challenges. Moreover, fluorescence microscopy observations revealed that AwTRAF2 was mainly located in cytoplasm of HEK293T cells and its overexpression significantly increased the transcriptional activities of the NF-κB-Luc reporter gene in HEK293T cells. Taken together, this study provided the experimental evidence of the presence of a functional TRAF2 in freshwater bivalves, which revealed its involvement in host response to immune challenges in A. woodiana.
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Affiliation(s)
- Fufa Qu
- Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China; Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China.
| | - Zhiming Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Yingli Zhou
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Yanping Qin
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
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96
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Qu F, Xiang Z, Zhou Y, Qin Y, Yu Z. Tumor necrosis factor receptor-associated factor 3 from Anodonta woodiana is an important factor in bivalve immune response to pathogen infection. FISH & SHELLFISH IMMUNOLOGY 2017; 71:151-159. [PMID: 29017949 DOI: 10.1016/j.fsi.2017.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/10/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
Tumor necrosis factor receptor-associated factor 3 (TRAF3) is a multifunctional adaptor protein in innate and acquired immune system that plays a key role in the regulation of the RIG-I-like receptor (RLR) and Toll-like receptor (TLR) signaling pathway in mammals. However, the immune function of TRAF3 homologs in freshwater mollusks is not well understood. In this study, we identified a bivalve TRAF3 gene (AwTRAF3) from Anodonta woodiana and investigated its potential roles during immune challenges. The present AwTRAF3 encoded a polypeptide of 562 amino acids with predicted molecular mass of 64.5 kDa and PI of 7.9. Similar to other reported TRAF3s, AwTRAF3 contained a RING finger domain, two TRAF domains with zinc finger domains, a coiled coli region and a conserved C-terminal meprin and TRAF homology (MATH) domain. Quantitative real-time PCR (qRT-PCR) analysis revealed that AwTRAF3 mRNA was broadly expressed in all of the examined tissues, with high expression in hepatopancreas, gill and heart. In addition, immune challenge experiments directly showed that transcript levels of AwTRAF3 in hepatopancreas were significantly regulated upon bacterial (Vibrio alginolyticus and Staphylococcus aureus) and viral (poly (I:C)) challenges, respectively. Moreover, GFP-tagged AwTRAF3 fusion protein was found to be located primarily in the cytoplasm in HEK293T cells. Altogether, these data provided the first experimental demonstration that freshwater mollusks possess a functional TRAF3 that was involved in the innate defense against bacterial and viral infection.
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Affiliation(s)
- Fufa Qu
- Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China.
| | - Zhiming Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yingli Zhou
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yanping Qin
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Ziniu Yu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
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97
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Tumor necrosis factor alpha in sleep regulation. Sleep Med Rev 2017; 40:69-78. [PMID: 29153862 DOI: 10.1016/j.smrv.2017.10.005] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/16/2017] [Accepted: 10/18/2017] [Indexed: 12/14/2022]
Abstract
This review details tumor necrosis factor alpha (TNF) biology and its role in sleep, and describes how TNF medications influence sleep/wake activity. Substantial evidence from healthy young animals indicates acute enhancement or inhibition of endogenous brain TNF respectively promotes and inhibits sleep. In contrast, the role of TNF in sleep in most human studies involves pathological conditions associated with chronic elevations of systemic TNF and disrupted sleep. Normalization of TNF levels in such patients improves sleep. A few studies involving normal healthy humans and their TNF levels and sleep are consistent with the animal studies but are necessarily more limited in scope. TNF can act on established sleep regulatory circuits to promote sleep and on the cortex within small networks, such as cortical columns, to induce sleep-like states. TNF affects multiple synaptic functions, e.g., its role in synaptic scaling is firmly established. The TNF-plasticity actions, like its role in sleep, can be local network events suggesting that sleep and plasticity share biochemical regulatory mechanisms and thus may be inseparable from each other. We conclude that TNF is involved in sleep regulation acting within an extensive tightly orchestrated biochemical network to niche-adapt sleep in health and disease.
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98
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Huang Y, Lin Y, Wu Y, Zeng J, Huang M, Guo S, Luo W, Lin H, Lin Y. Molecular mechanisms of the inhibitory effects of jiangu granule‑containing serum on RANKL‑induced osteoclastogenesis. Mol Med Rep 2017; 16:8420-8426. [PMID: 28983609 DOI: 10.3892/mmr.2017.7645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 07/26/2017] [Indexed: 11/05/2022] Open
Abstract
Postmenopausal osteoporosis (PMOP) is characterized by increased bone loss due to enhanced osteoclastogenesis and bone resorption. A Chinese herbal formula, jiangugranule (JG), exhibited great efficacy in the clinical treatment of PMOP. However, the molecular mechanisms underlying the therapeutic effects remain unclear. The present study aimed to examine the effects of JG‑containing serum on receptor activator of nuclear factor‑κB (NF‑κB) ligand (RANKL)‑induced osteoclastogenesis. Osteoclast precursor RAW264.7 cells were cultured and treated with JG‑containing serum in the presence of RANKL. Following 6 days of culture, the cells were stained with tartrate‑resistant acid phosphatase and the rate of differentiation was calculated. In addition, cells were treated with JG‑containing serum for 24, 48 and 96 h and total RNA and proteins were extracted for reverse transcription‑quantitative polymerase chain reaction and western blot analysis to detect mRNA and protein expression, respectively, of key molecules in the RANK/RANKL signaling pathway, including RANK, tumor necrosis factor receptor‑associated factor 6, NF‑κB (p50 and p52 subunits), c‑Fos and nuclear factor of activated T cells, cytoplasmic 1 (NFATc1). The results revealed that JG‑containing serum inhibited RANKL‑induced osteoclastogenesis and reduced mRNA and protein expression of RANK, c‑Fos and NFATc1. The results suggested that JG may regulate osteoclast differentiation through the RANK/RANKL signaling pathway, which may be a possible mechanism for the therapeutic effects of JG on PMOP.
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Affiliation(s)
- Yunmei Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Yu Lin
- Joint Surgery, Fuzhou No. 2 Hospital Affiliated Xiamen University, Fuzhou, Fujian 350007, P.R. China
| | - Yinsheng Wu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Jianwei Zeng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Meiya Huang
- Fujian Provincial Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Shiming Guo
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Wenjuan Luo
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Haiming Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
| | - Yanping Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350122, P.R. China
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99
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Okamoto K, Nakashima T, Shinohara M, Negishi-Koga T, Komatsu N, Terashima A, Sawa S, Nitta T, Takayanagi H. Osteoimmunology: The Conceptual Framework Unifying the Immune and Skeletal Systems. Physiol Rev 2017; 97:1295-1349. [DOI: 10.1152/physrev.00036.2016] [Citation(s) in RCA: 241] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/29/2017] [Accepted: 04/04/2017] [Indexed: 12/13/2022] Open
Abstract
The immune and skeletal systems share a variety of molecules, including cytokines, chemokines, hormones, receptors, and transcription factors. Bone cells interact with immune cells under physiological and pathological conditions. Osteoimmunology was created as a new interdisciplinary field in large part to highlight the shared molecules and reciprocal interactions between the two systems in both heath and disease. Receptor activator of NF-κB ligand (RANKL) plays an essential role not only in the development of immune organs and bones, but also in autoimmune diseases affecting bone, thus effectively comprising the molecule that links the two systems. Here we review the function, gene regulation, and signal transduction of osteoimmune molecules, including RANKL, in the context of osteoclastogenesis as well as multiple other regulatory functions. Osteoimmunology has become indispensable for understanding the pathogenesis of a number of diseases such as rheumatoid arthritis (RA). We review the various osteoimmune pathologies, including the bone destruction in RA, in which pathogenic helper T cell subsets [such as IL-17-expressing helper T (Th17) cells] induce bone erosion through aberrant RANKL expression. We also focus on cellular interactions and the identification of the communication factors in the bone marrow, discussing the contribution of bone cells to the maintenance and regulation of hematopoietic stem and progenitors cells. Thus the time has come for a basic reappraisal of the framework for understanding both the immune and bone systems. The concept of a unified osteoimmune system will be absolutely indispensable for basic and translational approaches to diseases related to bone and/or the immune system.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Tomoki Nakashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Masahiro Shinohara
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Takako Negishi-Koga
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Noriko Komatsu
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Asuka Terashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Shinichiro Sawa
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Takeshi Nitta
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Hiroshi Takayanagi
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
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100
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Yan C, Xiao J, Li J, Chen H, Liu J, Wang C, Feng C, Feng H. TBK1 of black carp plays an important role in host innate immune response against SVCV and GCRV. FISH & SHELLFISH IMMUNOLOGY 2017; 69:108-118. [PMID: 28821402 DOI: 10.1016/j.fsi.2017.08.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/05/2017] [Accepted: 08/12/2017] [Indexed: 06/07/2023]
Abstract
Tank-binding kinase 1 (TBK1) plays a pivotal role in the induction of type I IFNs in higher vertebrates. To explore the function of TBK1 in teleost, TBK1 of black carp (Mylopharyngodon Piceus) was cloned and characterized in this paper. The full-length cDNA of black carp TBK1 (bcTBK1) consists of 2857 nucleotides and the predicted bcTBK1 protein contains 727 amino acids, which includes an N-terminal kinase domain (KD), an ubiquitin-like domain (ULD) and two C-terminal coiled-coils. The transcription of bcTBK1 was constitutively detected in all the selected tissues and bcTBK1 mRNA level was increased in all selected tissues in response to SVCV or GCRV infection except that in muscle post GCRV invasion. The transcription of bcTBK1 in Mylopharyngodon Piceus fin (MPF) cells was up-regulated by the stimulation of SVCV, GCRV or poly (I:C) but not by LPS treatment. bcTBK1 migrated around 80 kDa in immunoblot assay and was identified as a cytosolic protein by immunofluorescence staining. bcTBK1 showed strong IFN-inducing ability in reporter assay and presented strong antiviral activity against both GCRV and SVCV in EPC cells. The reporter assay demonstrated that TRAF6 of black carp (bcTRAF6) up-regulated bcTBK1-induced IFN expression and the subcellular distribution of bcTBK1 overlapped with that of bcTRAF6 when these two proteins were co-expressed in EPC cells. Taken together, our study support the conclusion that bcTBK1 plays an important role in the antiviral innate immune response of black carp against SVCV and GCRV, in which its activity was positively regulated by bcTRAF6.
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Affiliation(s)
- Chuanzhe Yan
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Jun Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Jun Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Hui Chen
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Ji Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Chanyuan Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Chaoliang Feng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Hao Feng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China.
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