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Jiang J, Li Y, Li KQ, Shen YJ, Li F, Wang YL, Jiang YH, Zou PF. Functional characterization of RIP2 in large yellow croaker (Larimichthys crocea), a protein involved in the host antiviral responses via NF-κΒ, IRF3/7 related signaling. FISH & SHELLFISH IMMUNOLOGY 2024; 145:109374. [PMID: 38218422 DOI: 10.1016/j.fsi.2024.109374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 01/15/2024]
Abstract
As an adaptor protein functions essentially in the activation of NF-κΒ and MAPK signaling pathways mediated by NOD1 and NOD2, RIP2 plays important roles in the host innate immune responses. In the present study, the RIP2 ortholog termed Lc-RIP2 was identified and characterized in large yellow croaker (Larimichthys crocea). It was revealed that Lc-RIP2 is consisted of an open reading frame (ORF) of 1695 bp, encoding a protein of 564 aa, with an N-terminal kinase domain and a C-terminal caspase activation and recruitment domain (CARD). Subcellular localization assays demonstrated that Lc-RIP2 was a cytosolic protein, which was broadly distributed in the examined tissues/organs, and could be induced in response to poly I:C, LPS, PGN, and Pseudomonas plecoglossicida stimulations in vivo according to qRT-PCR analysis. Notably, Lc-RIP2 overexpression in vitro was sufficient to abolish SVCV proliferation in EPC cells, and could significantly induce the activation of NF-κB, IRF3, IRF7, and IFN1 promoters. In addition, luciferase assays found that Lc-RIP2 could cooperate with Lc-MAVS, Lc-TRAF3, Lc-TRAF6, Lc-IRF3, and Lc-IRF7 in NF-κB activation, associate with Lc-TRIF, Lc-MAVS, Lc-TRAF3, Lc-IRF3, and Lc-IRF7 in IRF3 activation, enhance Lc-TRIF, Lc-MAVS, Lc-TRAF3, and Lc-TRAF6 mediated IRF7 activation, and Lc-IRF3 mediated IFN1 activation, whereas suppress NF-κB activation when co-expressed with Lc-TRIF. Co-immunoprecipitation (Co-IP) assays also demonstrated that Lc-RIP2 interacts separately with Lc-TRIF, Lc-MAVS, Lc-TRAF3, Lc-TRAF6, Lc-IRF3, and Lc-IRF7. It is thus collectively indicated that Lc-RIP2 function dominantly in the regulation of the host innate immune signaling.
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Affiliation(s)
- Jing Jiang
- 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
| | - Kai Qing Li
- College of the Environment and Ecology, Xiamen University, Xiamen, Fujian Province, 361102, China
| | - Ying Jia Shen
- College of the Environment and Ecology, Xiamen University, Xiamen, Fujian Province, 361102, China
| | - Fang Li
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, 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
| | - Yong Hua Jiang
- 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
| | - 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.
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2
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Pan D, Lyu Y, Zhang N, Wang X, Lei T, Liang Z. RIP2 knockdown inhibits cartilage degradation and oxidative stress in IL-1β-treated chondrocytes via regulating TRAF3 and inhibiting p38 MAPK pathway. Clin Immunol 2021; 232:108868. [PMID: 34587513 DOI: 10.1016/j.clim.2021.108868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/14/2021] [Accepted: 09/23/2021] [Indexed: 01/04/2023]
Abstract
Receptor-interacting protein 2 (RIP2) is a key mediator implicated in multiple cellular processes, and its dysregulation has been recently reported in colitis, asthma and other inflammatory diseases. However, the effects of RIP2 on osteoarthritis (OA) and the underlying mechanisms remain unclear. In this study, we found that RIP2 expression was upregulated in human articular cartilage tissues with OA and interleukin-1β (IL-1β)-treated chondrocytes. Knockdown of RIP2 inhibited IL-1β-induced extracellular matrix (ECM) and oxidative stress. Moreover, knockdown of TRAF3 reversed the effects of RIP2 silencing on cartilage degradation and oxidative stress in IL-1β-induced chondrocytes. In addition, p38 mitogen-activated protein kinase (MAPK) activator dehydrocorydalmine chloride (Dc) also reversed the effects of RIP2 silencing on IL-1β-induced chondrocytes. Taken together, our data reveal that RIP2 knockdown inhibits cartilage degradation and oxidative stress in IL-1β-treated chondrocytes by regulating TRAF3 expression and p38 MAPK pathway activation.
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Affiliation(s)
- DongSheng Pan
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Yanhong Lyu
- Department of Gynecology and Obstetrics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Na Zhang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Xuankang Wang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Tao Lei
- School of Biomedical Engineering, Air Force Military Medical University, Xi'an 710032, Shaanxi, China.
| | - Zhuowen Liang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China.
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Mirzaei M, Gupta VK, Chitranshi N, Deng L, Pushpitha K, Abbasi M, Chick JM, Rajput R, Wu Y, McKay MJ, Salekdeh GH, Gupta VB, Haynes PA, Graham SL. Retinal proteomics of experimental glaucoma model reveal intraocular pressure-induced mediators of neurodegenerative changes. J Cell Biochem 2020; 121:4931-4944. [PMID: 32692886 DOI: 10.1002/jcb.29822] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 02/27/2020] [Accepted: 06/16/2020] [Indexed: 12/11/2022]
Abstract
Current evidence suggests that exposure to chronically induced intraocular pressure (IOP) leads to neurodegenerative changes in the inner retina. This study aimed to determine retinal proteomic alterations in a rat model of glaucoma and compared findings with human retinal proteomics changes in glaucoma reported previously. We developed an experimental glaucoma rat model by subjecting the rats to increased IOP (9.3 ± 0.1 vs 20.8 ± 1.6 mm Hg) by weekly microbead injections into the eye (8 weeks). The retinal tissues were harvested from control and glaucomatous eyes and protein expression changes analysed using a multiplexed quantitative proteomics approach (TMT-MS3). Immunofluorescence was performed for selected protein markers for data validation. Our study identified 4304 proteins in the rat retinas. Out of these, 139 proteins were downregulated (≤0.83) while the expression of 109 proteins was upregulated (≥1.2-fold change) under glaucoma conditions (P ≤ .05). Computational analysis revealed reduced expression of proteins associated with glutathione metabolism, mitochondrial dysfunction/oxidative phosphorylation, cytoskeleton, and actin filament organisation, along with increased expression of proteins in coagulation cascade, apoptosis, oxidative stress, and RNA processing. Further functional network analysis highlighted the differential modulation of nuclear receptor signalling, cellular survival, protein synthesis, transport, and cellular assembly pathways. Alterations in crystallin family, glutathione metabolism, and mitochondrial dysfunction associated proteins shared similarities between the animal model of glaucoma and the human disease condition. In contrast, the activation of the classical complement pathway and upregulation of cholesterol transport proteins were exclusive to human glaucoma. These findings provide insights into the neurodegenerative mechanisms that are specifically affected in the retina in response to chronically elevated IOP.
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Affiliation(s)
- Mehdi Mirzaei
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, Australia
| | - Vivek K Gupta
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Nitin Chitranshi
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | | | - Kanishka Pushpitha
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Mojdeh Abbasi
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Joel M Chick
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts
| | - Rashi Rajput
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Yunqi Wu
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, Australia
| | - Matthew J McKay
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, Australia
| | - Ghasem H Salekdeh
- Department of Molecular Systems Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Veer B Gupta
- School of Medicine, Deakin University, Melbourne, Australia
| | - Paul A Haynes
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
| | - Stuart L Graham
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
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Wang J, Yu S, Li J, Li H, Jiang H, Xiao P, Pan Y, Zheng J, Yu L, Jiang J. Protective role of N-acetyl-l-tryptophan against hepatic ischemia-reperfusion injury via the RIP2/caspase-1/IL-1β signaling pathway. PHARMACEUTICAL BIOLOGY 2019; 57:385-391. [PMID: 31184936 PMCID: PMC6566838 DOI: 10.1080/13880209.2019.1617750] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/29/2019] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Context: Hepatic ischemia-reperfusion injury (HIRI) is a complex process observed during liver resection and transplantation. N-acetyl-l-tryptophan (l-NAT), an antagonist of neurokinin 1 receptor, has been used for the treatment of nausea and neurodegenerative diseases. Objective: This study investigates the protective effect of l-NAT against HIRI and explores the potential underlying mechanisms. Materials and methods: Adult male Sprague-Dawley (SD) rats were randomly divided into three groups: sham, I/R and I/R + l-NAT. HIRI model was generated by clamping the hepatic artery, portal vein and common bile duct with a microvascular bulldog clamp for 45 min, and then removing the clamp and allowing reperfusion for 6 h. BRL cells were exposed to 200 µM H2O2 with or without 10 µM l-NAT for 6 h. Results: After l-NAT intervention, the structure of hepatic lobules was intact, and no swelling was noted in the cells. Furthermore, cell viability was found to be significantly enhanced when compared with the controls (p < 0.05). The mRNA and protein expression levels of serine-threonine kinase 2 (RIP2) and interleukin-1β (IL-1β) were significantly increased in the I/R and H2O2 groups when compared with the controls; however, these levels were significantly decreased after l-NAT intervention. Similarly, IL-1β activity and caspase-1 activity were significantly decreased in the H2O2 group when compared with the controls, after l-NAT intervention. Conclusions: Our findings indicated that l-NAT may exert a hepatoprotective role in HIRI through inhibiting RIP2/caspase-1/IL-1β signaling pathway, which can provide evidence for l-NAT to be a potential effective drug against HIRI during clinical practice.
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Affiliation(s)
- Jianxin Wang
- Department of Anatomy, Weifang Medical University, Weifang, China
| | - Shuna Yu
- Department of Anatomy, Weifang Medical University, Weifang, China
| | - Jianguo Li
- Department of Anatomy, Weifang Medical University, Weifang, China
| | - Huiting Li
- Department of Anatomy, Weifang Medical University, Weifang, China
| | - Hongxin Jiang
- Morphology Laboratory of Weifang Medical University, Weifang, China
| | - Peilun Xiao
- Department of Anatomy, Weifang Medical University, Weifang, China
| | - Yitong Pan
- Department of Anatomy, Weifang Medical University, Weifang, China
| | - Jie Zheng
- Department of Pathology, Weifang Medical University, Weifang, China
| | - Li Yu
- Departments of Histology and Embryology, Weifang Medical University, Weifang, China
| | - Jiying Jiang
- Department of Anatomy, Weifang Medical University, Weifang, China
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Perez-Chacon G, Adrados M, Vallejo-Cremades MT, Lefebvre S, Reed JC, Zapata JM. Dysregulated TRAF3 and BCL2 Expression Promotes Multiple Classes of Mature Non-hodgkin B Cell Lymphoma in Mice. Front Immunol 2019; 9:3114. [PMID: 30687320 PMCID: PMC6338067 DOI: 10.3389/fimmu.2018.03114] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 12/17/2018] [Indexed: 11/13/2022] Open
Abstract
TNF-Receptor Associated Factor (TRAF)-3 is a master regulator of B cell homeostasis and function. TRAF3 has been shown to bind and regulate various proteins involved in the control of innate and adaptive immune responses. Previous studies showed that TRAF3 overexpression renders B cells hyper-reactive to antigens and Toll-like receptor (TLR) agonists, while TRAF3 deficiency has been implicated in the development of a variety of B cell neoplasms. In this report, we show that transgenic mice overexpressing TRAF3 and BCL2 in B cells develop with high incidence severe lymphadenopathy, splenomegaly and lymphoid infiltrations into tissues and organs, which is the result of the growth of monoclonal and oligoclonal B cell neoplasms, as demonstrated by analysis of VHDJH gene rearrangement. FACS and immunohistochemical analyses show that different types of mature B cell neoplasms arise in TRAF3/BCL2 double-transgenic (tg) mice, all of which are characterized by the loss of surface IgM and IgD expression. However, two types of lymphomas are predominant: (1) mature B cell neoplasms consistent with diffuse large B cell lymphoma and (2) plasma cell neoplasms. The Ig isotypes expressed by the expanded B-cell clones included IgA, IgG, and IgM, with most having undergone somatic hypermutation. In contrast, mouse littermates representing all the other genotypes (TRAF3-/BCL2-; TRAF3+/BCL2-, and TRAF3-/BCL2+) did not develop significant lymphadenopathy or clonal B cell expansions within the observation period of 20 months. Interestingly, a large representation of the HCDR3 sequences expressed in the TRAF3-tg and TRAF3/BCL2-double-tg B cells are highly similar to those recognizing pathogen-associated molecular patterns and damage-associated molecular patterns, strongly suggesting a role for TRAF3 in promoting B cell differentiation in response to these antigens. Finally, allotransplantation of either splenocytes or cell-containing ascites from lymphoma-bearing TRAF3/BCL2 mice into SCID/NOD immunodeficient mice showed efficient transfer of the parental expanded B-cell clones. Altogether, these results indicate that TRAF3, perhaps by promoting exacerbated B cell responses to certain antigens, and BCL2, presumably by supporting survival of these clones, cooperate to induce mature B cell neoplasms in transgenic mice.
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Affiliation(s)
- Gema Perez-Chacon
- Instituto de Investigaciones Biomédicas "Alberto Sols", CSIC-UAM, Madrid, Spain.,Instituto de Investigación Hospital Universitario La Paz, Madrid, Spain
| | - Magdalena Adrados
- Instituto de Investigación del Hospital Universitario de La Princesa, Madrid, Spain
| | | | - Sophie Lefebvre
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - John C Reed
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Juan M Zapata
- Instituto de Investigaciones Biomédicas "Alberto Sols", CSIC-UAM, Madrid, Spain.,Instituto de Investigación Hospital Universitario La Paz, Madrid, Spain
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Liu J, Cao D, Liu Y, Li Z, Si Y, Wang Z, Zhang Q, Yu H, Wang X. Expression and functional analysis of receptor-interacting serine/threonine kinase 2 (RIP2) in Japanese flounder (Paralichthys olivaceus). FISH & SHELLFISH IMMUNOLOGY 2018; 75:327-335. [PMID: 29432866 DOI: 10.1016/j.fsi.2018.02.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/18/2018] [Accepted: 02/08/2018] [Indexed: 06/08/2023]
Abstract
Being a key adaptor protein in NOD1/2 and NF-κB signaling pathways, receptor-interacting serine/threonine kinase 2 (RIP2) plays an important role in innate immune response in vertebrates. In this study, we identified and characterized the Paralichthys olivaceus RIP2 gene (PoRIP2). Phylogenetic, alignment, and genomic analysis of PoRIP2 were conducted to determine its conservation and evolutionary relationship with other RIP2 in vertebrates. qRT-PCR results showed that the expression of PoRIP2 was high in the spleen and head kidney. Meanwhile, embryonic development expression profile revealed that it was high in the early developmental stages and hatching stage. In vivo, we examined the expression pattern in different tissues after being challenged with Edwardsiella tarda. PoRIP2 was up-regulated in tissues at different time points. In vitro, the expression of PoRIP2 was also increased after treatment with Poly I:C, PGN, and E. tarda. Transfection and overexpression experiments indicated that PoRIP2 was located in the cytoplasm of the FG-9307 cell line. The pro-inflammatory cytokines, IL-1β, IL-6, and IL-8, could be activated and up-regulated by PGN stimulation in PoRIP2 overexpressed cells. The inhibitory action was obvious in PoRIP2 overexpressed cells, and the quantity of E. tarda decreased. These findings highlight the important role of PoRIP2 in regulating innate immune in P. olivaceus. Our results indicated that PoRIP2 might be involved in immune response and the activation of the NF-κB signaling pathways. Our study can improve the knowledge on the immune system of fish and provide a theoretical basis for the study of prevention and treatment of fish diseases.
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Affiliation(s)
- Jinxiang Liu
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Dandan Cao
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Yuezhong Liu
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Zan Li
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Yu Si
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Zhigang Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Quanqi Zhang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 266237, Qingdao, Shandong, China
| | - Haiyang Yu
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China
| | - Xubo Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, 266003, Qingdao, Shandong, China.
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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: 73] [Impact Index Per Article: 10.4] [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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Xie J, Belosevic M. Functional characterization of receptor-interacting serine/threonine kinase 2 (RIP2) of the goldfish (Carassius auratus L.). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 48:76-85. [PMID: 25242011 DOI: 10.1016/j.dci.2014.09.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 09/15/2014] [Indexed: 06/03/2023]
Abstract
We report on the functional characterization of RIP2 of the goldfish. Quantitative expression analysis of goldfish RIP2 revealed the greatest mRNA levels in the spleen, monocytes and splenocytes. We generated a recombinant form of the molecule (rgRIP2) and determined that anti-human RIP2 polyclonal antibody specifically recognized recombinant goldfish RIP2 (rgRIP2). Goldfish RIP2 activity was inhibited by the p38 MAPK pathway inhibitor SB203580. Treatment of goldfish macrophages with LPS, PGN, MDP, Poly I:C, heat-killed and live Mycobacterium marinum, and heat-killed Aeromonas salmonicida differentially changed the expression of RIP2 at both mRNA and protein levels. Co-immunoprecipitation assays indicated that RIP2 interacted with Nod1 and Nod2 receptors in eukaryotic cells. The results of dual luciferase reporter assay revealed that RIP2 over-expression caused the activation of the NF-κB signal pathway. In addition, RIP2 was involved in the regulation of the production of TNFα-2 and IL-1β1 in goldfish macrophages exposed to M. marinum.
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Affiliation(s)
- Jiasong Xie
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Miodrag Belosevic
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada; Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada.
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Kasama Y, Mizukami T, Kusunoki H, Peveling-Oberhag J, Nishito Y, Ozawa M, Kohara M, Mizuochi T, Tsukiyama-Kohara K. B-cell-intrinsic hepatitis C virus expression leads to B-cell-lymphomagenesis and induction of NF-κB signalling. PLoS One 2014; 9:e91373. [PMID: 24651473 PMCID: PMC3961254 DOI: 10.1371/journal.pone.0091373] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 02/10/2014] [Indexed: 12/16/2022] Open
Abstract
Hepatitis C virus (HCV) infection leads to the development of hepatic diseases, as well as extrahepatic disorders such as B-cell non-Hodgkin's lymphoma (B-NHL). To reveal the molecular signalling pathways responsible for HCV-associated B-NHL development, we utilised transgenic (Tg) mice that express the full-length HCV genome specifically in B cells and develop non-Hodgkin type B-cell lymphomas (BCLs). The gene expression profiles in B cells from BCL-developing HCV-Tg mice, from BCL-non-developing HCV-Tg mice, and from BCL-non-developing HCV-negative mice were analysed by genome-wide microarray. In BCLs from HCV-Tg mice, the expression of various genes was modified, and for some genes, expression was influenced by the gender of the animals. Markedly modified genes such as Fos, C3, LTβR, A20, NF-κB and miR-26b in BCLs were further characterised using specific assays. We propose that activation of both canonical and alternative NF-κB signalling pathways and down-regulation of miR-26b contribute to the development of HCV-associated B-NHL.
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Affiliation(s)
- Yuri Kasama
- Department of Experimental Phylaxiology, Faculty of Life Sciences, Kumamoto University, Kumamoto-shi, Kumamoto, Japan
| | - Takuo Mizukami
- Department of Research on Blood and Biological Products, National Institute of Infectious Diseases, Musashi-Murayama-shi, Tokyo, Japan
| | - Hideki Kusunoki
- Department of Research on Blood and Biological Products, National Institute of Infectious Diseases, Musashi-Murayama-shi, Tokyo, Japan
| | | | - Yasumasa Nishito
- Center for Microarray Analysis, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Tokyo, Japan
| | - Makoto Ozawa
- Transboundary Animal Diseases Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
- Laboratory of Animal Hygiene, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Michinori Kohara
- Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Tokyo, Japan
| | - Toshiaki Mizuochi
- Department of Research on Blood and Biological Products, National Institute of Infectious Diseases, Musashi-Murayama-shi, Tokyo, Japan
| | - Kyoko Tsukiyama-Kohara
- Transboundary Animal Diseases Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
- Laboratory of Animal Hygiene, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
- * E-mail:
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