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Rojas G, Carmenate T, García-Pérez G, Pérez-Martínez D. Phagekines: Directed Evolution and Characterization of Functional Cytokines Displayed on Phages. Methods Mol Biol 2023; 2702:149-189. [PMID: 37679619 DOI: 10.1007/978-1-0716-3381-6_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
The current chapter focuses on the use of filamentous phages to display and modify biologically active cytokines, with special emphasis on directed evolution of novel variants showing improved receptor binding. Cytokines are essential protein mediators involved in cell-to-cell communication. Their functional importance and the complexity of their interactions with multichain receptors make cytokine engineering a promising tool for the discovery and optimization of therapeutic molecules. Protocols used at the laboratory are illustrated through examples of manipulation of interleukin-2 and interleukin-6, two members of the family of alpha-helix-bundle cytokines playing pivotal roles in immunity and inflammation.
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Takeuchi T. Cytokines and cytokine receptors as targets of immune-mediated inflammatory diseases-RA as a role model. Inflamm Regen 2022; 42:35. [PMID: 36451227 PMCID: PMC9713106 DOI: 10.1186/s41232-022-00221-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/15/2022] [Indexed: 12/05/2022] Open
Abstract
Recent advances in our understanding in the immune-mediated inflammatory diseases (IMID) are explored and promoted by the targeted treatment. Among these targets, cytokines and cytokine receptors have become the good candidates for the drug development. In this review, the cytokine and cytokine receptors, which are approved in IMID, are overviewed, and modalities of the treatment, the role of cytokines and cytokine receptors in each disease, and the updated molecular information by modern technologies in rheumatoid arthritis as a role model are shown and discussed for the future perspectives.
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Affiliation(s)
- Tsutomu Takeuchi
- grid.410802.f0000 0001 2216 2631Saitama Medical University, 38 Morohongo, Moroyama, Iruma, Saitama, 350-0495 Japan ,grid.26091.3c0000 0004 1936 9959Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Keio University, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582 Japan
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Yuan X, Jiang H, Fu D, Robida A, Rajanayake K, Yuan H, Wen B, Sun D, Watch BT, Chinnaswamy K, Stuckey JA, Paczesny S, Rech JC, Yang CY. Structure-Activity relationship of 1-(Furan-2ylmethyl)Pyrrolidine-Based Stimulation-2 (ST2) inhibitors for treating graft versus host disease. Bioorg Med Chem 2022; 71:116942. [PMID: 35930851 PMCID: PMC9451522 DOI: 10.1016/j.bmc.2022.116942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/12/2022] [Accepted: 07/16/2022] [Indexed: 11/20/2022]
Abstract
An elevated plasma level of soluble ST2 (sST2) is a risk biomarker for graft-versus-host disease (GVHD) and death in patients receiving hematopoietic cell transplantation (HCT). sST2 functions as a trap for IL-33 and amplifies the pro-inflammatory type 1 and 17 response while suppressing the tolerogenic type 2 and regulatory T cells activation during GVHD development. We previously identified small-molecule ST2 inhibitors particularly iST2-1 that reduces plasma sST2 levels and improved survival in two animal models. Here, we reported the structure-activity relationship of the furanylmethylpyrrolidine-based ST2 inhibitors based on iST2-1. Based on the biochemical AlphaLISA assay, we improved the activity of iST2-1 by 6-fold (∼6 μM in IC50 values) in the inhibition of ST2/IL-33 and confirmed the activities of the compounds in a cellular reporter assay. To determine the inhibition of the alloreactivity in vitro, we used the mixed lymphocyte reaction assay to demonstrate that our ST2 inhibitors decreased CD4+ and CD8+ T cells proliferation and increased Treg population. The data presented in this work are critical to the development of ST2 inhibitors in future.
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Affiliation(s)
- Xinrui Yuan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Hua Jiang
- Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Denggang Fu
- Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Aaron Robida
- Life Sciences Institute, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Krishani Rajanayake
- Rogel Cancer Center, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States; Pharmaceutical Sciences, College of Pharmacy, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Hebao Yuan
- Rogel Cancer Center, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States; Pharmaceutical Sciences, College of Pharmacy, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Bo Wen
- Rogel Cancer Center, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States; Pharmaceutical Sciences, College of Pharmacy, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Duxin Sun
- Rogel Cancer Center, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States; Pharmaceutical Sciences, College of Pharmacy, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Brennan T Watch
- Michigan Center for Therapeutic Innovation, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Krishnapriya Chinnaswamy
- Life Sciences Institute, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States; Rogel Cancer Center, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Jeanne A Stuckey
- Life Sciences Institute, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States; Rogel Cancer Center, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Sophie Paczesny
- Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Jason C Rech
- Michigan Center for Therapeutic Innovation, Departments of Internal Medicine, University of Michigan, Ann Arbor, MI, United States.
| | - Chao-Yie Yang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, United States.
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4
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Zheng J, Chen D, Xu J, Ding X, Wu Y, Shen HC, Tan X. Small molecule approaches to treat autoimmune and inflammatory diseases (Part III): Targeting cytokines and cytokine receptor complexes. Bioorg Med Chem Lett 2021; 48:128229. [PMID: 34214508 DOI: 10.1016/j.bmcl.2021.128229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 01/14/2023]
Abstract
Chronic and dysregulated cytokine signaling plays an important role in the pathogenic development of many autoimmune and inflammatory diseases. Despite intrinsic challenges in the disruption of interactions between cytokines and cytokine receptors, many first-in-class small-molecule inhibitors have been discovered over the past few years. The third part of the digest series presents recent progress in identifying such inhibitors and highlights the application of novel research tools in the fields of structural biology, computational analysis, screening methods, biophysical/biochemical assays and medicinal chemistry strategy.
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Affiliation(s)
- Jiamin Zheng
- Department of Medicinal Chemistry, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China
| | - Dongdong Chen
- Department of Medicinal Chemistry, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China
| | - Jie Xu
- Department of Immunology, Infectious Disease and Ophthalmology, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China
| | - Xiao Ding
- Department of Medicinal Chemistry, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China
| | - Yao Wu
- Computer Aided Drug Design, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China
| | - Hong C Shen
- Department of Medicinal Chemistry, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China
| | - Xuefei Tan
- Department of Medicinal Chemistry, Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, Shanghai 201203, China.
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Wangzhou A, Paige C, Ray PR, Dussor G, Price TJ. Diversity of Receptor Expression in Central and Peripheral Mouse Neurons Estimated from Single Cell RNA Sequencing. Neuroscience 2021; 463:86-96. [PMID: 33774127 PMCID: PMC8106651 DOI: 10.1016/j.neuroscience.2021.03.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/15/2022]
Abstract
Because somatosensory PNS neurons, in particular nociceptors, are specially tuned to be able to detect a wide variety of both exogenous and endogenous signals, one might assume that these neurons express a greater variety of receptor genes. This assumption has not been formally tested. Because cells detect such signals via cell surface receptors, we sought to formally test the hypothesis that PNS neurons might express a broader array of cell surface receptors than CNS neurons using existing single cell RNA sequencing resources from mouse. We focused our analysis on ion channels, G-protein coupled receptors (GPCRS), receptor tyrosine kinase and cytokine family receptors. In partial support of our hypothesis, we found that mouse PNS somatosensory, sympathetic and enteric neurons and CNS neurons have similar receptor expression diversity in families of receptors examined, with the exception of GPCRs and cytokine receptors which showed greater diversity in the PNS. Surprisingly, these differences were mostly driven by enteric and sympathetic neurons, not by somatosensory neurons or nociceptors. Secondary analysis revealed many receptors that are very specifically expressed in subsets of PNS neurons, including some that are unique among neurons for nociceptors. Finally, we sought to examine specific ligand-receptor interactions between T cells and PNS and CNS neurons. Again, we noted that most interactions between these cells are shared by CNS and PNS neurons despite the fact that T cells only enter the CNS under rare circumstances. Our findings demonstrate that both PNS and CNS neurons express an astonishing array of cell surface receptors and suggest that most neurons are tuned to receive signals from other cells types, in particular immune cells.
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Affiliation(s)
- Andi Wangzhou
- University of Texas at Dallas, Department of Neuroscience and Center for Advanced Pain Studies, United States
| | - Candler Paige
- University of Texas at Dallas, Department of Neuroscience and Center for Advanced Pain Studies, United States
| | - Pradipta R Ray
- University of Texas at Dallas, Department of Neuroscience and Center for Advanced Pain Studies, United States
| | - Gregory Dussor
- University of Texas at Dallas, Department of Neuroscience and Center for Advanced Pain Studies, United States
| | - Theodore J Price
- University of Texas at Dallas, Department of Neuroscience and Center for Advanced Pain Studies, United States.
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Abstract
Interleukin-6 (IL-6) is a cytokine, which is involved in innate and acquired immunity, in neural cell maintenance and in metabolism. IL-6 can be synthesized by many different cells including myeloid cells, fibroblasts, endothelial cells and lymphocytes. The synthesis of IL-6 is strongly stimulated by Toll like receptors and by IL-1. Therefore, IL-6 levels in the body are high during infection and inflammatory processes. Moreover, IL-6 is a prominent growth factor of tumor cells and plays a major role in inflammation associated cancer. On target cells, IL-6 binds to an IL-6 receptor, which is not signaling competent. The complex of IL-6 and IL-6 receptor associate with a second receptor subunit, glycoprotein gp130, which dimerizes and initiates intracellular signaling. Cells, which do not express the IL-6 receptor are not responsive to IL-6. They can, however, be stimulated by the complex of IL-6 and a soluble form of the IL-6 receptor, which is generated by limited proteolysis and to a lesser extent by translation from an alternatively spliced mRNA. This process has been named IL-6 trans-signaling. This review article will explain the biology of IL-6 trans-signaling and the specific inhibition of this mode of signaling, which has been recognized to be fundamental in inflammation and cancer.
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Chhabra Y, Lee CMM, Müller AF, Brooks AJ. GHR signalling: Receptor activation and degradation mechanisms. Mol Cell Endocrinol 2021; 520:111075. [PMID: 33181235 DOI: 10.1016/j.mce.2020.111075] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 12/21/2022]
Abstract
Growth hormone (GH) actions via initiating cell signalling through the GH receptor (GHR) are important for many physiological processes, in addition to its well-known role in regulating growth. The activation of JAK-STAT signalling by GH is well characterized, however knowledge on GH activation of SRC family kinases (SFKs) is still limited. In this review we summarise the collective knowledge on the activation, regulation, and downstream signalling of GHR. We highlight studies on GH activation of SFKs and the important outcome of this signalling pathway with a focus on the different degradation mechanisms that can regulate GHR availability since this is an area that warrants further study considering its role in tumour progression.
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Affiliation(s)
- Yash Chhabra
- The University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia; Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21231, USA
| | - Christine M M Lee
- The University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Alexandra Franziska Müller
- The University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Andrew J Brooks
- The University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia.
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Gang M, Wong P, Berrien-Elliott MM, Fehniger TA. Memory-like natural killer cells for cancer immunotherapy. Semin Hematol 2020; 57:185-193. [PMID: 33256911 DOI: 10.1053/j.seminhematol.2020.11.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 10/22/2020] [Accepted: 11/04/2020] [Indexed: 02/07/2023]
Abstract
Natural killer (NK) cells are cytotoxic innate lymphoid cells that protect the host from infection and mediate anti-tumor responses. Classically considered part of the innate immune system, NK cells were previously thought to not possess the specificity or enhanced recall responses associated with adaptive T and B lymphocytes. However, a large body of work has transformed these long-held divisions between innate and adaptive immunity; NK cell memory and memory-like responses are clearly established after hapten exposure, viral infection, and combined cytokine activation. These advances come with opportunities to translate innate NK cell recall responses into the clinic as cancer immunotherapy. Here, we review our current understanding of the heterogeneity of memory and memory-like NK cell responses, with distinct formation, molecular biology, and memory type functions. We elaborate on cytokine-induced memory-like NK cells and highlight their application as adoptive immunotherapy for cancer, and as a platform for engineering optimal NK cell anti-tumor responses.
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Affiliation(s)
- Margery Gang
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO
| | - Pamela Wong
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO
| | - Melissa M Berrien-Elliott
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO
| | - Todd A Fehniger
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO.
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Capitano ML, Griesenauer B, Guo B, Cooper S, Paczesny S, Broxmeyer HE. The IL-33 Receptor/ST2 acts as a positive regulator of functional mouse bone marrow hematopoietic stem and progenitor cells. Blood Cells Mol Dis 2020; 84:102435. [PMID: 32408242 PMCID: PMC7788514 DOI: 10.1016/j.bcmd.2020.102435] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/19/2022]
Abstract
There is a paucity of information on a potential role for the IL-33 receptor/ST2 in the regulation of mouse bone marrow (BM) hematopoietic stem (HSC) and progenitor (HPC) cells. Comparing the BM of st2−/− and wild type (WT) control mice using functional assays, it was found that st2−/− BM cells had poorer engrafting capacity than WT BM in a competitive repopulating assay using congenic mice, with no changes in reconstitution of B-, T- and myeloid cells following transplantation. The BM of st2−/− mice also had fewer granulocyte-macrophage, erythroid, and multipotential progenitors than that of WT BM and these st2−/− HPC were in a slow cycling state compared to that of the rapidly cycling HPC of the WT mice. While functional assessment of HSC and HPC demonstrated that ST2 has a positive influence on regulation of HSC, we could not pick up differences in st2−/− compared to WT BM using only phenotypic analysis of HSC and HPC populations prior to transplantation, again demonstrating that phenotypic analysis of HSC and HPC do not always recapitulate the functional assessments of these immature hematopoietic cells. ST2 is a positive modulator of hematopoiesis. ST2-/- is a positive modulator of hematopoiesis Immunophenotyping of st2-/- hematopoietic stem cell numbers does not recapitulate functional capability of these cells.
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Affiliation(s)
- Maegan L Capitano
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States of America.
| | - Brad Griesenauer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States of America
| | - Bin Guo
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States of America
| | - Scott Cooper
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States of America
| | - Sophie Paczesny
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States of America
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States of America.
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Kedong H, Wang D, Sagaram M, An HS, Chee A. Anti-inflammatory effects of interleukin-4 on intervertebral disc cells. Spine J 2020; 20:60-68. [PMID: 31265894 DOI: 10.1016/j.spinee.2019.06.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Inflammation has been associated with a number of pathological conditions including intervertebral disc (IVD) degeneration, increased risks of low back pain and other spinal diseases. Downregulating disc inflammation may be a strategy to reduce degeneration and more importantly back pain. Interleukin (IL)-4 was first discovered as a T-cell secreted factor that enhanced the proliferation of anti-IgM stimulated B cells and is now known as a cytokine that can stimulate cell proliferation and differentiation, tissue regeneration and neurological functions. IL-4 has been shown to be effective in inhibiting inflammatory pathways in chondrocytes. Immunohistochemical studies have shown that disc tissues are immunopositive for IL-4 receptor α (IL-4Rα) and IL-4. Yet, the roles of IL-4 and IL-4R in disc biology remain unknown. PURPOSE The purpose of this study is to understand the roles of IL-4 and IL-4Rα in IVDs and to determine if IL-4 can function to inhibit inflammation in IVD cells. STUDY DESIGN/SETTING In vitro experiment. METHODS Deidentified patient IVD tissues were collected after surgery under the Orthopedic Information, Tissue and Implant Repository (ORA L00011021). IVD cells were isolated and cultured in monolayer. IL-4R protein expression was analyzed using immunocytochemistry. To test if the IL-4R was responsive to its ligand, signal transducer and activator of transcription 6 (STAT6) phosphorylation was analyzed on cell lysates of IVD cells treated with recombinant human IL-4 for 30 minutes using enzyme linked immunosorbent assay kit. Gene expression analysis of IL-4 up- and downregulated genes were analyzed using real-time RT-PCR. Anti-inflammatory effects of IL-4 were determined by cotreating disc cells with lipopolysaccharide (LPS) and IL-4 and measuring gene expression and protein release of inflammatory markers, IL-6 and IL-8. The significance of differences among means of data on gene expression and protein analyses were analyzed by one-way analysis of variance or student t test. Differences were considered significant when the p value was below 0.05. RESULTS Immunocytochemistry staining for IL-4Rα in primary IVD cells (n=8) showed the majority of immunopositive staining was intracellular. After IVD cells (n=3-7) were treated with different concentrations of recombinant human IL-4 (0.1-100 ng/mL) for 30 minutes, phospho-STAT6 levels significantly increased by two- to four-fold at all concentrations tested compared with untreated cells. Gene expression of IL-4Rα and IL-6 increased significantly in cells undergoing IL-4 treatment for 24 hours compared with control treated IVD cells (n=5-10). LPS stimulated inflammatory gene expression of interferon (IFN)β, IL-12, IL-6, and IL-8 were downregulated significantly in the presence of IL-4 (n=7). Lastly, protein release of IL-6 and IL-8 were reduced significantly in cells treated with IL-4 and LPS compared with those treated with LPS alone (n=7). CONCLUSIONS This study was the first to explore the function of IL-4 and IL-4R in IVD cells. Immunocytochemistry studies confirmed that the majority of cells isolated from patient IVDs expressed IL-4Rα at the protein level. Also, IVD cells can respond to IL-4 by up-regulating IL-4Rα and IL-6 genes and inhibiting inflammatory genes and proteins induced by LPS. Further studies to test the anti-inflammatory effects of IL-4 in the IVD would be needed in animal models. CLINICAL RELEVANCE Biological therapies which include intradiscal delivery of cells, anti-inflammatories or growth factors are being investigated to treat disc degeneration and back pain in animal models and in the clinic. Based on our findings that IL-4 has anti-inflammatory effects on IVD cells, the results of this study suggest including recombinant IL-4 delivery into the intervertebral disc may be a beneficial therapeutic strategy to treat patients with back pain by reducing disc inflammation.
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Affiliation(s)
- Hou Kedong
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison Street, Suite 300, Chicago, IL 60612, USA; Department of Orthopedics, Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing, China
| | - Degui Wang
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison Street, Suite 300, Chicago, IL 60612, USA; Department of Orthopedics, Longgang District People's Hospital, Shenzhen, Guangdong, China
| | - Manasa Sagaram
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison Street, Suite 300, Chicago, IL 60612, USA; Arizona College of Osteopathic Medicine, Glendale, AZ, USA
| | - Howard S An
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison Street, Suite 300, Chicago, IL 60612, USA.
| | - Ana Chee
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison Street, Suite 300, Chicago, IL 60612, USA
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Li L, Wei J, Li S, Jacko AM, Weathington NM, Mallampalli RK, Zhao J, Zhao Y. The deubiquitinase USP13 stabilizes the anti-inflammatory receptor IL-1R8/Sigirr to suppress lung inflammation. EBioMedicine 2019; 45:553-562. [PMID: 31204278 PMCID: PMC6642080 DOI: 10.1016/j.ebiom.2019.06.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/30/2019] [Accepted: 06/08/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The Single immunoglobin interleukin-1 (IL-1)-related receptor (Sigirr), also known as IL-1R8, has been shown to exhibit broad anti-inflammatory effects against inflammatory diseases including acute lung injury, while molecular regulation of IL-1R8/Sigirr protein stability has not been reported. This study is designed to determine whether stabilization of IL-1R8/Sigirr by a deubiquitinating enzyme (DUB) is sufficient to suppress inflammatory responses and lessen lung inflammation. METHODS A molecular signature of ubiquitination and degradation of IL-1R8/Sigirr was determined using a receptor ligation chase model. The anti-inflammatory effects on USP13 were investigated. USP13 knockout mice were evaluated for stabilization of IL-1R8/Sigirr and disease phenotype in an acute lung injury model. FINDINGS IL-1R8/Sigirr degradation is mediated by the ubiquitin-proteasome system, through site-specific ubiquitination. This effect was antagonized by the DUB USP13. USP13 levels correlate directly with IL-1R8/Sigirr, and both proteins were reduced in cells and tissue from mice subjected to inflammatory injury by the TLR4 agonist lipopolysaccharide (LPS). Knockdown of USP13 in cells increased IL-1R8/Sigirr poly-ubiquitination and reduced its stability, which enhanced LPS-induced TLR4 signaling and cytokine release. Likewise, USP13-deficient mice were highly susceptible to LPS or Pseudomonas aeruginosa models of inflammatory lung injury. IL-1R8/Sigirr overexpression in cells or by pulmonary viral transduction attenuated the inflammatory phenotype conferred by the USP13-/- genotype. INTERPRETATION Stabilization of IL-1R8/Sigirr by USP13 describes a novel anti-inflammatory pathway in diseases that could provide a new strategy to modulate immune activation. FUND: This study was supported by the US National Institutes of Health (R01HL131665, HL136294 to Y.Z., R01 GM115389 to J.Z.).
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Affiliation(s)
- Lian Li
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA,Department of Respiration Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianxin Wei
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Shuang Li
- Department of Surgery, The first affiliated hospital of Dalian Medical University, Dalian, China
| | - Anastasia M. Jacko
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | | | - Rama K. Mallampalli
- Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Jing Zhao
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA,Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Yutong Zhao
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA,Department of Internal Medicine, The Ohio State University, Columbus, OH, USA,Corresponding author at: Department of Physiology and Cell Biology, The Ohio State University, 2166E, 333 W 10th Avenue, Columbus, OH 43210, USA.
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Madouri F, Barada O, Kervoaze G, Trottein F, Pichavant M, Gosset P. Production of Interleukin-20 cytokines limits bacterial clearance and lung inflammation during infection by Streptococcus pneumoniae. EBioMedicine 2018; 37:417-427. [PMID: 30361066 PMCID: PMC6284423 DOI: 10.1016/j.ebiom.2018.10.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/02/2018] [Accepted: 10/10/2018] [Indexed: 12/20/2022] Open
Abstract
Background Streptococcus pneumoniae is the leading cause of bacterial pneumonia worldwide. Previous reports showed that IL-20 cytokines (IL-19, IL-20 and IL-24) are induced and have an immuno-regulatory function during cutaneous infection. In the current study, our aim was to demonstrate the implication of IL-20 cytokines and their receptors and their role during experimental pneumococcal infection. Methods C57BL/6 mice were infected with S. pneumoniae by intranasal route. The bacterial burden, the immune response and the cytokine production were evaluated after treatment with an anti-IL-20 receptor-b (IL-20Rb) neutralizing antibody (anti-IL-20Rb). Findings Of interest, expression of IL-20 cytokines mRNA and protein were transiently increased in the lung tissue during infection. Blocking of the IL-20Rb decreased the bacterial burden both in the bronchoalveolar lavage and the lung whereas there was no significant drop in the blood. This treatment also reduced the pulmonary damages (as shown by the alveolar wall thickening), the recruitment of neutrophils and dendritic cells, and the levels of the pro-inflammatory cytokines IL-1β and IL-6 in the lung. Administration of the anti-IL-20Rb antibody enhanced the synthesis of the antibacterial peptide LCN2. However, this effect is transient and did not affect the survival of the infected mice. Interpretation Collectively, this study highlights the implication of IL-20 related cytokines during lung infection by S. pneumoniae and might have therapeutic applications in bacterial pneumonia. Fundings This work was supported by CNRS, INSERM, INSERM-transfert, the University of Lille and the Fondation du Souffle (Paris, France).
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Affiliation(s)
- Fahima Madouri
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, 59019 Lille, France; Université Lille Nord de France, 59000 Lille, France; Centre National de la Recherche Scientifique, UMR 8204, 59021 Lille, France; Institut National de la Santé et de la Recherche Médicale, U1019, 59019 Lille, France
| | - Olivia Barada
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, 59019 Lille, France; Université Lille Nord de France, 59000 Lille, France; Centre National de la Recherche Scientifique, UMR 8204, 59021 Lille, France; Institut National de la Santé et de la Recherche Médicale, U1019, 59019 Lille, France
| | - Gwenola Kervoaze
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, 59019 Lille, France; Université Lille Nord de France, 59000 Lille, France; Centre National de la Recherche Scientifique, UMR 8204, 59021 Lille, France; Institut National de la Santé et de la Recherche Médicale, U1019, 59019 Lille, France
| | - François Trottein
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, 59019 Lille, France; Université Lille Nord de France, 59000 Lille, France; Centre National de la Recherche Scientifique, UMR 8204, 59021 Lille, France; Institut National de la Santé et de la Recherche Médicale, U1019, 59019 Lille, France
| | - Muriel Pichavant
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, 59019 Lille, France; Université Lille Nord de France, 59000 Lille, France; Centre National de la Recherche Scientifique, UMR 8204, 59021 Lille, France; Institut National de la Santé et de la Recherche Médicale, U1019, 59019 Lille, France
| | - Philippe Gosset
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, 59019 Lille, France; Université Lille Nord de France, 59000 Lille, France; Centre National de la Recherche Scientifique, UMR 8204, 59021 Lille, France; Institut National de la Santé et de la Recherche Médicale, U1019, 59019 Lille, France.
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13
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Tang Y, Pan J, Huang S, Peng X, Zou X, Luo Y, Ren D, Zhang X, Li R, He P, Wa Q. Downregulation of miR-133a-3p promotes prostate cancer bone metastasis via activating PI3K/AKT signaling. J Exp Clin Cancer Res 2018; 37:160. [PMID: 30021600 PMCID: PMC6052526 DOI: 10.1186/s13046-018-0813-4] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/23/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND Bone metastasis is a leading cause of morbidity and mortality in advanced prostate cancer (PCa). Downexpression of miR-133a-3p has been found to contribute to the progression, recurrence and distant metastasis in PCa. However, clinical significance of miR-133a-3p in bone metastasis of PCa, and the biological role of miR-133a-3p and its molecular mechanisms underlying bone metastasis of PCa remain unclear. METHODS miR-133a-3p expression was evaluated in 245 clinical PCa tissues by real-time PCR. Statistical analysis was performed to evaluate the clinical correlation between miR-133a-3p expression and clinicopathological features, and overall and bone metastasis-free survival in PCa patients. The biological roles of miR-133a-3p in the bone metastasis of PCa were investigated both in vitro and in vivo. Bioinformatics analysis, real-time PCR, western blot and luciferase reporter analysis were applied to demonstrate the relationship between miR-133a-3p and its potential targets. Western blotting and luciferase assays were examined to identify the underlying pathway involved in the anti-tumor role of miR-133a-3p. Clinical correlation of miR-133a-3p with its targets was verified in human PCa tissues. RESULTS miR-133a-3p expression is reduced in PCa tissues compared with the adjacent normal tissues and benign prostate lesion tissues, particularly in bone metastatic PCa tissues. Low expression of miR-133a-3p is significantly correlated with advanced clinicopathological characteristics and shorter bone metastasis-free survival in PCa patients by statistical analysis. Moreover, upregulating miR-133a-3p inhibits cancer stem cell-like phenotypes in vitro and in vivo, as well as attenuates anoikis resistance in vitro in PCa cells. Importantly, administration of agomir-133a-3p greatly suppresses the incidence of PCa bone metastasis in vivo. Our results further demonstrate that miR-133a-3p suppresses bone metastasis of PCa via inhibiting PI3K/AKT signaling by directly targeting multiple cytokine receptors, including EGFR, FGFR1, IGF1R and MET. The negative clinical correlation of miR-133a-3p with EGFR, FGFR1, IGF1R, MET and PI3K/AKT signaling activity is determined in clinical PCa tissues. CONCLUSION Our results unveil a novel mechanism by which miR-133a-3p inhibits bone metastasis of PCa, providing the evidence that miR-133a-3p may serve as a potential bone metastasis marker in PCa, and delivery of agomir-133a-3p may be an effective anti-bone metastasis therapeutic strategy in PCa.
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Affiliation(s)
- Yubo Tang
- Department of Pharmacy, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China.,Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Jincheng Pan
- Department of Urology Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Shuai Huang
- Department of Orthopaedic Surgery, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China.,Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080, Guangdong Province, China
| | - Xinsheng Peng
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080, Guangdong Province, China
| | - Xuenong Zou
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.,Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080, Guangdong Province, China
| | - Yongxiang Luo
- Department of biomedical engineering, health science center, Shenzhen University, Shenzhen, 518060, China
| | - Dong Ren
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080, Guangdong Province, China
| | - Xin Zhang
- Department of Pathology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, 529030, China
| | - Ronggang Li
- Department of Pathology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, 529030, China
| | - Peiheng He
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080, Guangdong Province, China.
| | - Qingde Wa
- Department of Orthopaedic Surgery, the Affiliated Hospital of Zunyi Medical college, 149 Dalian Road, Zunyi, 563003, Guizhou Province, China.
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14
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Fisher KH, Fragiadaki M, Pugazhendhi D, Bausek N, Arredondo MA, Thomas SJ, Brown S, Zeidler MP. A genome-wide RNAi screen identifies MASK as a positive regulator of cytokine receptor stability. J Cell Sci 2018; 131:jcs.209551. [PMID: 29848658 DOI: 10.1242/jcs.209551] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 05/16/2018] [Indexed: 01/01/2023] Open
Abstract
Cytokine receptors often act via the Janus kinase and signal transducer and activator of transcription (JAK/STAT) pathway to form a signalling cascade that is essential for processes such as haematopoiesis, immune responses and tissue homeostasis. In order to transduce ligand activation, cytokine receptors must dimerise. However, mechanisms regulating their dimerisation are poorly understood. In order to better understand the processes regulating cytokine receptor levels, and their activity and dimerisation, we analysed the highly conserved JAK/STAT pathway in Drosophila, which acts via a single receptor, known as Domeless. We performed a genome-wide RNAi screen in Drosophila cells, identifying MASK as a positive regulator of Domeless dimerisation and protein levels. We show that MASK is able to regulate receptor levels and JAK/STAT signalling both in vitro and in vivo We also show that its human homologue, ANKHD1, is also able to regulate JAK/STAT signalling and the levels of a subset of pathway receptors in human cells. Taken together, our results identify MASK as a novel regulator of cytokine receptor levels, and suggest functional conservation, which may have implications for human health.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Katherine H Fisher
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Maria Fragiadaki
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Dhamayanthi Pugazhendhi
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Nina Bausek
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
| | - Maria A Arredondo
- Department of Oncology & Human Metabolism, The University of Sheffield, Sheffield, S10 2RX, UK
| | - Sally J Thomas
- Department of Oncology & Human Metabolism, The University of Sheffield, Sheffield, S10 2RX, UK
| | - Stephen Brown
- The Sheffield RNAi Screening Facility, Department of Biomedical Science, The University of Sheffield, S10 2TN, UK
| | - Martin P Zeidler
- The Bateson Centre, Department of Biomedical Science, The University of Sheffield, Firth Court, Sheffield, S10 2TN, UK
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15
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Held W, Jeevan-Raj B, Charmoy M. Transcriptional regulation of murine natural killer cell development, differentiation and maturation. Cell Mol Life Sci 2018; 75:3371-9. [PMID: 29959459 DOI: 10.1007/s00018-018-2865-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/13/2018] [Accepted: 06/27/2018] [Indexed: 01/20/2023]
Abstract
Natural killer (NK) cells are innate cytotoxic effector cells that play important protective roles against certain pathogens as well as against pathogen-infected and transformed host cells. NK cells continuously arise from adult bone marrow-resident haematopoietic progenitors. Their generation can be sub-divided into three phases. The early NK cell development phase from multipotent common lymphoid progenitors occurs at least in part in common with that of additional members of a family of innate lymphoid cells, for which NK cells are the founding member. An intermediate phase of NK cell differentiation is characterized by the acquisition of IL-15 responsiveness and lineage-defining properties such as the transcription of genes coding for cytotoxic effector molecules. This is followed by a late maturation phase during which NK cells lose homeostatic expansion and increase effector capacity. These three phases are regulated by multiple stage-specific but not NK cell-specific transcription factors. This review summarizes the NK cell developmental and maturation processes and their transcriptional regulation with an emphasis on data derived from genetically modified mouse models.
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16
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Park JY, Ligons DL, Park JH. Out-sourcing for Trans-presentation: Assessing T Cell Intrinsic and Extrinsic IL-15 Expression with Il15 Gene Reporter Mice. Immune Netw 2018; 18:e13. [PMID: 29503743 PMCID: PMC5833120 DOI: 10.4110/in.2018.18.e13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 02/13/2018] [Accepted: 02/13/2018] [Indexed: 12/01/2022] Open
Abstract
IL-15 is a cytokine of the common γ-chain family that is critical for natural killer (NK), invariant natural killer T (iNKT), and CD8 memory T cell development and homeostasis. The role of IL-15 in regulating effector T cell subsets, however, remains incompletely understood. IL-15 is mostly expressed by stromal cells, myeloid cells, and dendritic cells (DCs). Whether T cells themselves can express IL-15, and if so, whether such T cell-derived IL-15 could play an autocrine role in T cells are interesting questions that were previously addressed but answered with mixed results. Recently, three independent studies described the generation of IL-15 reporter mice which facilitated the identification of IL-15-producing cells and helped to clarify the role of IL-15 both in vitro and in vivo. Here, we review the findings of these studies and place them in context of recent reports that examined T cell-intrinsic IL-15 expression during CD4 effector T cell differentiation.
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Affiliation(s)
- Joo-Young Park
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Davinna L Ligons
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jung-Hyun Park
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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17
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Yu F, Ma N, Zhang X, Tian S, Geng L, Xu W, Wang M, Jia Y, Liu X, Ma J, Quan Y, Zhang C, Guo L, An W, Liu D. Comprehensive investigating of cytokine and receptor related genes variants in patients with chronic hepatitis B virus infection. Cytokine 2017; 103:10-14. [PMID: 29287219 DOI: 10.1016/j.cyto.2017.12.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/12/2017] [Accepted: 12/15/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS Chronic hepatitis B virus (HBV) infection is a global health problem and the outcome are associated with both viral factors and host genetic factors. High Throughput Sequencing (HTS) technology were used to identify variants associated with liver disease. METHODS Fifty-five Chronic hepatitis B (CHB) patients, fifty-three self-healing HBV (SH) patients and 53 healthy controls (HC) were recruited, 404 cytokine and cytokine receptor related genes were captured and sequenced at high depth (>900X), both variant (Fischer's exact test, P value < 0.05) and gene (SKAT-O gene level test, adjust P value < 0.05) level association were used to identify variants and genes associated with CHB. RESULTS Total 5083 variants have been detected, fifty-four variants were found associated with CHB, most (29/32) variants were located in HLA region, including HLA-B, HLA-C, HLA-DQA1, HLA-DQB1, HLA-DQB2, HLA-DRB1 and HLA-DRB5. Several missense variants were found associated with CHB, including p.E226K in PVR (poliovirus receptor), p.E400A and p.C431R in IL4R (interleukin 4 receptor). Four variants located in 3'UTR (untranslated region) have also been found associated with CHB. CONCLUSION Our study revealed that high through target region sequencing, combined with association analysis at variant and gene level, would be a good way to found variants and genes associated with CHB even at small sample size. Our data implied that chronic hepatitis B patients who carry these variants need intensive monitoring.
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Affiliation(s)
- Fengxue Yu
- Department of Science and Technology, The Hebei Key Laboratory of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Ning Ma
- Department of Social Medicine and Health Care Management, Hebei Medical University, Shijiazhuang, China
| | - Xiaolin Zhang
- Division of Epidemiology, School of Public Health, Hebei Medical University, Shijiazhuang, China
| | - Suzhai Tian
- Department of Science and Technology, The Hebei Key Laboratory of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lianxia Geng
- Department of Science and Technology, The Hebei Key Laboratory of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Weili Xu
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Mingbang Wang
- Shenzhen Following Precision Medical Research institute, Shenzhen, Guangdong, China
| | - Yuan Jia
- Department of Infectious Disease Control, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xuechen Liu
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Junji Ma
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yuan Quan
- Department of Infectious Disease, Hebei Chest Hospital, Shijiazhuang, China
| | - Chaojun Zhang
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lina Guo
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wenting An
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dianwu Liu
- Division of Epidemiology, School of Public Health, Hebei Medical University, Shijiazhuang, China
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18
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Takahashi N, Saitoh T, Gotoh N, Nitta Y, Alkebsi L, Kasamatsu T, Minato Y, Yokohama A, Tsukamoto N, Handa H, Murakami H. The cytokine polymorphisms affecting Th1/Th2 increase the susceptibility to, and severity of, chronic ITP. BMC Immunol 2017; 18:26. [PMID: 28511637 PMCID: PMC5434613 DOI: 10.1186/s12865-017-0210-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 04/21/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND T-helper cell type 1 (Th1) polarization in chronic immune thrombocytopenia (cITP) has been reported at the protein and mRNA levels. We evaluated the impact of Th1/Th2 cytokine and cytokine receptor functional polymorphisms on both susceptibility to, and severity of, cITP. We analysed IFN-γ + 874 T/A, IFN-γR -611G/A, IL-4 -590C/T, and IL-4Rα Q576R polymorphisms in 126 cITP patients (male/female: 34/92; median age: 47.7 years) and 202 healthy control donors. Genotyping was determined by PCR and direct sequencing. The Th1/Th2 ratio was detected in peripheral blood mononuclear cells via flow cytometry. RESULTS cITP patients had a higher frequency of the IL-4Rα 576 non-QQ genotype compared to healthy subjects (P = 0.04). cITP patients with the IFN-γ +874 non-AA genotype (high expression type) showed more severe thrombocytopenia than those with the AA genotype (P < 0.05). cITP patients had a significantly higher Th1/Th2 ratio than control patients (P < 0.01); this ratio was inversely correlated with platelet counts. Furthermore, patients with both IFN-γ +874 non-AA genotype (high expression type) and IFN-γR -611 non-AA genotype (high-function type) had a significantly higher Th1/Th2 ratio (P < 0.05). CONCLUSIONS The cytokine polymorphisms affecting Th1/Th2 increase the susceptibility to, and severity of, chronic ITP.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Cells, Cultured
- Child
- Child, Preschool
- Chronic Disease
- Female
- Genetic Predisposition to Disease
- Genotype
- Humans
- Interferon-gamma/genetics
- Interferon-gamma/metabolism
- Interleukin-4/genetics
- Interleukin-4/metabolism
- Interleukin-4 Receptor alpha Subunit/genetics
- Interleukin-4 Receptor alpha Subunit/metabolism
- Male
- Middle Aged
- Polymorphism, Single Nucleotide
- Purpura, Thrombocytopenic, Idiopathic/genetics
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Receptors, Interferon/genetics
- Receptors, Interferon/metabolism
- Th1 Cells/immunology
- Th1-Th2 Balance/genetics
- Th2 Cells/immunology
- Young Adult
- Interferon gamma Receptor
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Affiliation(s)
- Noriyuki Takahashi
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
| | - Takayuki Saitoh
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
| | - Nanami Gotoh
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
| | - Yasuhiro Nitta
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
| | - Lobna Alkebsi
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
| | - Tetsuhiro Kasamatsu
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
| | - Yusuke Minato
- Department of Virology and Preventive Medicine, Gunma University, Gunma, Japan
| | - Akihiko Yokohama
- Division of Blood Transfusion Service, Gunma University Hospital, Gunma, Japan
| | | | - Hiroshi Handa
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Hirokazu Murakami
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514 Japan
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Nguyen L, Bohlen J, Stricker J, Chahal I, Zhang H, Pistilli EE. Hippocampus-specific deficiency of IL-15Rα contributes to greater anxiety-like behaviors in mice. Metab Brain Dis 2017; 32:297-302. [PMID: 27837366 DOI: 10.1007/s11011-016-9930-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/08/2016] [Indexed: 02/06/2023]
Abstract
A hippocampus-specific IL15RαKO mouse (hipIl15ra fl/fl /Cre+) was generated to test the hypothesis that the targeted deletion of interleukin-15 receptor alpha (IL-15Rα) in the hippocampus contributes to altered behavior, including greater levels of anxiety and ambulatory activity. Using Cre-loxP, exons 2 and 3 of the IL-15Rα gene were excised within the hippocampus, while normal expression was maintained within the rest of the brain. In the open field test (OFT), hipIl15ra fl/fl /Cre+ spent a greater amount of time in the periphery and less time in the central portions of the chamber, and there was also a noticeable trend for decreased rearing activity; these behaviors are consistent with greater levels of anxiety-like behavior in these mice. However, there were no differences in the overall locomotor counts in the OFT when comparing hipIl15ra fl/fl /Cre+ mice to their littermate controls. These data implicate IL-15-related signaling within the hippocampus has a role in anxiety-like behavior.
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Affiliation(s)
- Linda Nguyen
- Departments of Behavioral Medicine & Psychiatry and Physiology & Pharmacology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Joseph Bohlen
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Janelle Stricker
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Ikttesh Chahal
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Hanting Zhang
- Departments of Behavioral Medicine & Psychiatry and Physiology & Pharmacology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA
| | - Emidio E Pistilli
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, 26506, USA.
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV, 26506, USA.
- West Virginia Clinical and Translational Sciences Institute, West Virginia University School of Medicine, Morgantown, WV, 26506, USA.
- Division of Exercise Physiology, Department of Human Performance and Applied Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, 26506-9227, USA.
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Wang Y, Wang K, Dang N, Wang L, Zhang M. Downregulation of miR-3940-5p promotes T-cell activity by targeting the cytokine receptor IL-2R gamma on human cutaneous T-cell lines. Immunobiology 2016; 221:1378-1381. [PMID: 27502164 DOI: 10.1016/j.imbio.2016.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/28/2016] [Accepted: 07/22/2016] [Indexed: 12/16/2022]
Abstract
Vitiligo is a common established depigmentation skin disease characterized by the presence of activated T lymphocytes anti melanocytes within the skin. T-cell immunity mainly mediates the destruction of melanocytes and is one of the main mechanisms involved in the pathogenesis of non-segmental vitiligo. Our previous study had identified several differentially expressed miRNAs and found that the expression of miR-3940-5p was downregulated in vitiligo patients. According to the research findings, we hypothesized that the novel miRNA plays a potential role on human cutaneous T lymphocytes in the action mechanism of immune imbalance in vitiligo.
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Affiliation(s)
- Yi Wang
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Keyu Wang
- Department of Dermatology, Qilu Hospital of Shandong University, Jinan, China.
| | - Ningning Dang
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Lihua Wang
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Min Zhang
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
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Liongue C, Taznin T, Ward AC. Signaling via the CytoR/JAK/STAT/SOCS pathway: Emergence during evolution. Mol Immunol 2016; 71:166-175. [PMID: 26897340 DOI: 10.1016/j.molimm.2016.02.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 02/05/2016] [Accepted: 02/08/2016] [Indexed: 12/24/2022]
Abstract
Cell-cell signaling represents an essential hallmark of multicellular organisms, which necessarily require a means of communicating between different cell populations, particularly immune cells. Cytokine receptor signaling through the Janus kinase/Signal Transducer and Activator of Transcription/Suppressor of Cytokine Signaling (CytoR/JAK/STAT/SOCS) pathway embodies one important paradigm by which this is achieved. This pathway has been extensively studied in vertebrates and protostomes and shown to play fundamental roles in development and function of immune and other cells. However, our understanding of the origins of the individual pathway components and their assembly into a functional pathway has remained limited. This study examined the origins of each component of this pathway through bioinformatics analysis of key extant species. This has revealed step-wise accretion of individual components over a large evolutionary time-frame, but only in bilateria did a series of innovations allow their final coalescence to form a complete pathway. Assembly of the CytoR/JAK/STAT pathway has followed the retrograde model of pathway evolution, whereas addition of the SOCS component has adhered to the patchwork model.
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Affiliation(s)
- Clifford Liongue
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia
| | - Tarannum Taznin
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia
| | - Alister C Ward
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia.
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Abstract
Dendritic cells (DCs) comprise two major subsets, conventional DC (cDC) and plasmacytoid DC (pDC) in the steady-state lymphoid organ. These cells have a short half-life and therefore, require continuous generation from hematopoietic stem cells and progenitor cells. Recently, we identified DC-restricted progenitors called common DC progenitors (CDPs) in the bone marrow of mouse. The CDPs can be isolated from mouse bone marrow based on the hematopoietic cytokine receptors, such as Flt3 (Fms-related tyrosine kinase 3) (CD135), c-kit (CD117), M-CSF (macrophage colony-stimulating factor) receptor (CD115), and IL-7 (interleukin-7) receptor-α (CD127). The CDPs comprise of two progenitors, CD115(+) CDPs and CD115(-) CDPs, and give rise to only DC subsets in both in vitro and in vivo. The former CDPs are the main source of cDC, while the later CDPs are the main source of pDC in vivo. Here, we provide a protocol for the isolation of dendritic cell progenitor and bone marrow progenitor cells from mouse.
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Affiliation(s)
- Nobuyuki Onai
- Department of Biodefense, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8510, Japan.
| | - Toshiaki Ohteki
- Department of Biodefense, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8510, Japan
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23
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Xiang L, Rehm KE, Sunesara I, Griswold M, Marshall GD. Gene polymorphisms of stress hormone and cytokine receptors associate with immunomodulatory profile and psychological measurement. J Psychosom Res 2015; 78:438-444. [PMID: 25434615 DOI: 10.1016/j.jpsychores.2014.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/30/2014] [Accepted: 11/06/2014] [Indexed: 11/25/2022]
Abstract
OBJECTIVE We sought to identify whether stable single nucleotide polymorphisms (SNPs) of various endocrine and immune molecules could be used as biomarkers associated with specific immune alterations and chronic stress measures in normal humans. METHODS A total of 207 volunteer participants answered stress questionnaire and gave peripheral blood cells for identification of SNPs in genes coding for glucocorticoid receptor (GR), beta 2 adrenergic receptor (B2AR), interferon-gamma receptors (IFNGR1, IFNGR2), and interleukin-4 receptor (IL4R). Immunoregulatory profiles were measured by flow cytometry and genotyping assays were performed by allelic discrimination real-time PCR. RESULTS Several significant differences were revealed in associations between stress marker and immune indicators based on SNP categories. For instance, Th1 levels of the minor alleles of GR TthIIII (AA) and IFNGR2 Q64R (Arg/Arg) groups were positively associated with chronic stress (PSS) (p = 0.024 and 0.005, respectively) compared with wild type (WT) and negatively associated with PSS in the heterozygous genotypes of GR BclI and IL4R Ile50Val (p = 0.040 and p = 0.052, respectively). Treg levels of the minor alleles of BclI (GG) and IFNGR1 T-56C (CC) groups were positively associated with PSS (p = 0.045 and p = 0.010, respectively) and negatively associated in the minor allele (Val/Val) of IL4R Ile50Va and the heterozygous genotype of IL4R Q576R (p = 0.041 and p = 0.017, respectively) compared to WT. CONCLUSION The data support the notion that gene polymorphisms from various components of the psychoneuroendocrine-immune network may be useful as biomarkers to categorize individual stress-associated immune responses.
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MESH Headings
- Adult
- Alleles
- Chronic Disease
- Female
- Flow Cytometry
- Genotype
- Humans
- Interleukin-4 Receptor alpha Subunit/genetics
- Interleukin-4 Receptor alpha Subunit/immunology
- Male
- Polymorphism, Single Nucleotide/immunology
- Receptors, Adrenergic, beta-2/genetics
- Receptors, Adrenergic, beta-2/immunology
- Receptors, Cytokine/genetics
- Receptors, Cytokine/immunology
- Receptors, Glucocorticoid/genetics
- Receptors, Glucocorticoid/immunology
- Receptors, Interferon/genetics
- Receptors, Interferon/immunology
- Stress, Psychological/genetics
- Stress, Psychological/immunology
- Interferon gamma Receptor
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Affiliation(s)
- Lianbin Xiang
- Laboratory of Behavioral Immunology Research, Division of Clinical Immunology and Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA; Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA.
| | - Kristina E Rehm
- Laboratory of Behavioral Immunology Research, Division of Clinical Immunology and Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA; Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Imran Sunesara
- Laboratory of Behavioral Immunology Research, Division of Clinical Immunology and Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA; Center of Biostatistics and Bioinformatics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Michael Griswold
- Laboratory of Behavioral Immunology Research, Division of Clinical Immunology and Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA; Center of Biostatistics and Bioinformatics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Gailen D Marshall
- Laboratory of Behavioral Immunology Research, Division of Clinical Immunology and Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA; Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA
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Abstract
The history of the discovery and the development of our knowledge of IL-4 exemplifies the path of progress in biomedical science. There are unanticipated twists and turns although progress is made, sometimes quickly, other times far too slowly. Illustrative is the extended time from the first report of IL-4 in 1982 to the establishment of the efficacy of blocking IL-4 and its congener IL-13 in the treatment of moderate to severe asthma and atopic dermatitis, a period of 31years. The author was "present at the creation" and has been a participant or a witness to virtually all the major advances and recounts here his recollection of this history.
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Abstract
Vitamin A, retinol, circulates in blood bound to retinol-binding protein (RBP) which, in turn, associates with transthyretin (TTR) to form a retinol-RBP-TTR ternary complex. At some tissues, retinol-bound (holo-) RBP is recognized by a membrane protein termed STRA6, which transports retinol from extracellular RBP into cells and, concomitantly, activates a JAK2/STAT3/5 signaling cascade that culminates in induction of STAT target genes. STRA6-mediated retinol transport and cell signaling are critically inter-dependent, and they both require the presence of cellular retinol-binding protein 1 (CRBP1), an intracellular retinol acceptor, as well as a retinol-metabolizing enzyme such as lecithin:retinol acyltransferase (LRAT). STRA6 thus functions as a "cytokine signaling transporter" which couples vitamin A homeostasis and metabolism to cell signaling, thereby regulating gene transcription. Recent studies provided molecular level insights into the mode of action of this unique protein.
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Affiliation(s)
- Noa Noy
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic Foundation, and Department of Nutrition, Case Western Reserve University School of Medicine, 9500 Euclid Ave., Cleveland, OH 44195, USA.
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26
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Abstract
Interleukin-22 (IL-22) is a member of IL-10 family cytokines that is produced by many different types of lymphocytes including both those of the innate and adaptive immune systems. This includes activated T cells, most notably Th17 and Th22 cells, and NK cells, γδ T cells, LTi cells and LTi-like cells. IL-22 mediates its effects via the IL-22-IL-22R complex and subsequent Janus kinase-signal transducer and activators of transcription (JAK-STAT) signaling pathway. Recently accumulated evidence has indicated that IL-22 also plays an important role in the pathogenesis of many autoimmune diseases. In this review, we discuss the recent findings and advancement of the role for IL-22 in several autoimmune diseases, such as psoriasis, rheumatoid arthritis (RA), hepatitis, graft versus host disease (GHVD) and allergic diseases, implicating that target IL-22 may have a therapeutic potential in those autoimmune diseases.
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Affiliation(s)
- Xuyan Yang
- Department of Rheumatology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, PR China.
| | - Song Guo Zheng
- Division of Rheumatology, Department of Medicine at Penn State University Hershey College of Medicine, Hershey 17033, USA.
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27
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Abstract
Interleukin-22 (IL-22) is a member of IL-10 family cytokines that is produced by many different types of lymphocytes including both those of the innate and adaptive immune systems. This includes activated T cells, most notably Th17 and Th22 cells, and NK cells, γδ T cells, LTi cells and LTi-like cells. IL-22 mediates its effects via the IL-22-IL-22R complex and subsequent Janus kinase-signal transducer and activators of transcription (JAK-STAT) signaling pathway. Recently accumulated evidence has indicated that IL-22 also plays an important role in the pathogenesis of many autoimmune diseases. In this review, we discuss the recent findings and advancement of the role for IL-22 in several autoimmune diseases, such as psoriasis, rheumatoid arthritis (RA), hepatitis, graft versus host disease (GHVD) and allergic diseases, implicating that target IL-22 may have a therapeutic potential in those autoimmune diseases.
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Affiliation(s)
- Xuyan Yang
- Department of Rheumatology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, PR China.
| | - Song Guo Zheng
- Division of Rheumatology, Department of Medicine at Penn State University Hershey College of Medicine, Hershey 17033, USA.
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28
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Saka K, Kawahara M, Teng J, Otsu M, Nakauchi H, Nagamune T. Top-down motif engineering of a cytokine receptor for directing ex vivo expansion of hematopoietic stem cells. J Biotechnol 2013; 168:659-65. [PMID: 24070902 DOI: 10.1016/j.jbiotec.2013.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 12/12/2022]
Abstract
The technique to expand hematopoietic stem cells (HSCs) ex vivo is eagerly anticipated to secure an enough amount of HSCs for clinical applications. Previously we developed a scFv-thrombopoietin receptor (c-Mpl) chimera, named S-Mpl, which can transduce a proliferation signal in HSCs in response to a cognate antigen. However, a remaining concern of the S-Mpl chimera may be the magnitude of the cellular expansion level driven by this molecule, which was significantly less than that mediated by endogenous wild-type c-Mpl. In this study, we engineered a tyrosine motif located in the intracellular domain of S-Mpl based on a top-down approach in order to change the signaling properties of the chimera. The truncated mutant (trunc.) and an amino-acid substitution mutant (Q to L) of S-Mpl were constructed to investigate the ability of these mutants to expand HSCs. The result showed that the truncated and Q to L mutants gave higher and considerably lower number of the cells than unmodified S-Mpl, respectively. The proliferation level through the truncated mutant was even higher than that of non-transduced HSCs with the stimulation of a native cytokine, thrombopoietin. Moreover, we analyzed the signaling properties of the S-Mpl mutants in detail using a pro-B cell line Ba/F3. The data indicated that the STAT3 and STAT5 activation levels through the truncated mutant increased, whereas activation of the Q to L mutant was inhibited by a negative regulator of intracellular signaling, SHP-1. This is the first demonstration that a non-natural artificial mutant of a cytokine receptor is effective for ex vivo expansion of hematopoietic cells compared with a native cytokine receptor.
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Affiliation(s)
- Koichiro Saka
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Comfort KK, Haugh JM. Combinatorial Signal Transduction Responses Mediated by Interleukin-2 and -4 Receptors in a Helper T H2 Cell Line. Cell Mol Bioeng 2008; 1. [PMID: 24255693 DOI: 10.1007/s12195-008-0015-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The cytokines interleukin (IL)-2 and IL-4 are important regulators of the adaptive immune response, due in part to their effects on clonal expansion and differentiation of T cells. When IL-2 and IL-4 are administered together, both antagonistic and synergistic effects have been reported, but little is known in general concerning the mechanisms underlying such combinatorial effects. We found evidence for both effects in the proliferation responses of the IL-2 and IL-4 responsive T cell line, HT-2; IL-4 delays the onset of cell growth yet ultimately allows a higher cell density to be achieved in static culture. At the level of signal transduction pathways, we found that IL-4 partially inhibits IL-2 receptor-mediated pathways (PI3K/Akt, Ras/Erk, and STAT5a/b) and does not prolong their transient kinetics. This mode of antagonism, but not the effects on cell proliferation, is overcome at higher concentrations of IL-2 that are sufficient to saturate the signaling responses. By comparison, IL-4-stimulated activation of STAT6 is unaffected by IL-2 and shows sustained kinetics, and we speculate that this or another IL-4 receptor-specific pathway is responsible for the effects of IL-4 on IL-2-stimulated proliferation. A possibly related observation is that IL-4 induces a dramatic cell adhesion phenotype.
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Affiliation(s)
- Kristen K Comfort
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Box 7905, Raleigh, NC 27695, USA
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