Both Tumor Necrosis Factor Receptor Signaling Pathways Contribute to Mortality but Not to Splenomegaly in Generalized Lymphoproliferative Disorder
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Regulation of CCR7-Dependent Cell Migration Through CCR7 Homodimer Formation
www.nature.com/scientificreports OPEN Regulation of CCR7-dependent cell migration through CCR7 homodimer formation Received: 6 September 2016 Daichi Kobayashi 1,2,6,7, Masataka Endo2, Hirotaka Ochi2, Hironobu Hojo3, Accepted: 24 July 2017 Masayuki Miyasaka4,5,6 & Haruko Hayasaka2 Published: xx xx xxxx The chemokine receptor CCR7 contributes to various physiological and pathological processes including T cell maturation, T cell migration from the blood into secondary lymphoid tissues, and tumor cell metastasis to lymph nodes. Although a previous study suggested that the efcacy of CCR7 ligand-dependent T cell migration correlates with CCR7 homo- and heterodimer formation, the exact extent of contribution of the CCR7 dimerization remains unclear. Here, by inducing or disrupting CCR7 dimers, we demonstrated a direct contribution of CCR7 homodimerization to CCR7-dependent cell migration and signaling. Induction of stable CCR7 homodimerization resulted in enhanced CCR7- dependent cell migration and CCL19 binding, whereas induction of CXCR4/CCR7 heterodimerization did not. In contrast, dissociation of CCR7 homodimerization by a novel CCR7-derived synthetic peptide attenuated CCR7-dependent cell migration, ligand-dependent CCR7 internalization, ligand-induced actin rearrangement, and Akt and Erk signaling in CCR7-expressing cells. Our study indicates that CCR7 homodimerization critically regulates CCR7 ligand-dependent cell migration and intracellular signaling in multiple cell types. Recruitment of lymphocytes from the blood into secondary lymphoid tissues is a process contributing to con- tinuous immune surveillance. Tis process is tightly regulated by the interaction between lymphoid chemokines expressed in lymphoid tissues and their specifc G-protein-coupled receptors in migrating cells1, 2. CCR7 is one of the major chemokine receptors preferentially expressed in a wide range of immune cells, including naïve T and B cells, central memory T cells, mature dendritic cells3, and plasmacytoid dendritic cells4, 5. -
Following Ligation of CCL19 but Not CCL21 Arrestin 3 Mediates
Arrestin 3 Mediates Endocytosis of CCR7 following Ligation of CCL19 but Not CCL21 Melissa A. Byers, Psachal A. Calloway, Laurie Shannon, Heather D. Cunningham, Sarah Smith, Fang Li, Brian C. This information is current as Fassold and Charlotte M. Vines of September 25, 2021. J Immunol 2008; 181:4723-4732; ; doi: 10.4049/jimmunol.181.7.4723 http://www.jimmunol.org/content/181/7/4723 Downloaded from References This article cites 82 articles, 45 of which you can access for free at: http://www.jimmunol.org/content/181/7/4723.full#ref-list-1 http://www.jimmunol.org/ Why The JI? Submit online. • Rapid Reviews! 30 days* from submission to initial decision • No Triage! Every submission reviewed by practicing scientists • Fast Publication! 4 weeks from acceptance to publication by guest on September 25, 2021 *average Subscription Information about subscribing to The Journal of Immunology is online at: http://jimmunol.org/subscription Permissions Submit copyright permission requests at: http://www.aai.org/About/Publications/JI/copyright.html Email Alerts Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/alerts The Journal of Immunology is published twice each month by The American Association of Immunologists, Inc., 1451 Rockville Pike, Suite 650, Rockville, MD 20852 Copyright © 2008 by The American Association of Immunologists All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. The Journal of Immunology Arrestin 3 Mediates Endocytosis of CCR7 following Ligation of CCL19 but Not CCL211 Melissa A. Byers,* Psachal A. Calloway,* Laurie Shannon,* Heather D. Cunningham,* Sarah Smith,* Fang Li,† Brian C. -
CXCL13/CXCR5 Interaction Facilitates VCAM-1-Dependent Migration in Human Osteosarcoma
International Journal of Molecular Sciences Article CXCL13/CXCR5 Interaction Facilitates VCAM-1-Dependent Migration in Human Osteosarcoma 1, 2,3,4, 5 6 7 Ju-Fang Liu y, Chiang-Wen Lee y, Chih-Yang Lin , Chia-Chia Chao , Tsung-Ming Chang , Chien-Kuo Han 8, Yuan-Li Huang 8, Yi-Chin Fong 9,10,* and Chih-Hsin Tang 8,11,12,* 1 School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei City 11031, Taiwan; [email protected] 2 Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan; [email protected] 3 Department of Nursing, Division of Basic Medical Sciences, and Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City, Chiayi County 61363, Taiwan 4 Research Center for Industry of Human Ecology and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Guishan Dist., Taoyuan City 33303, Taiwan 5 School of Medicine, China Medical University, Taichung 40402, Taiwan; [email protected] 6 Department of Respiratory Therapy, Fu Jen Catholic University, New Taipei City 24205, Taiwan; [email protected] 7 School of Medicine, Institute of Physiology, National Yang-Ming University, Taipei City 11221, Taiwan; [email protected] 8 Department of Biotechnology, College of Health Science, Asia University, Taichung 40402, Taiwan; [email protected] (C.-K.H.); [email protected] (Y.-L.H.) 9 Department of Sports Medicine, College of Health Care, China Medical University, Taichung 40402, Taiwan 10 Department of Orthopedic Surgery, China Medical University Beigang Hospital, Yunlin 65152, Taiwan 11 Department of Pharmacology, School of Medicine, China Medical University, Taichung 40402, Taiwan 12 Chinese Medicine Research Center, China Medical University, Taichung 40402, Taiwan * Correspondence: [email protected] (Y.-C.F.); [email protected] (C.-H.T.); Tel.: +886-4-2205-2121-7726 (C.-H.T.); Fax: +886-4-2233-3641 (C.-H.T.) These authors contributed equally to this work. -
Dimerization of Ltβr by Ltα1β2 Is Necessary and Sufficient for Signal
Dimerization of LTβRbyLTα1β2 is necessary and sufficient for signal transduction Jawahar Sudhamsua,1, JianPing Yina,1, Eugene Y. Chiangb, Melissa A. Starovasnika, Jane L. Groganb,2, and Sarah G. Hymowitza,2 Departments of aStructural Biology and bImmunology, Genentech, Inc., South San Francisco, CA 94080 Edited by K. Christopher Garcia, Stanford University, Stanford, CA, and approved October 24, 2013 (received for review June 6, 2013) Homotrimeric TNF superfamily ligands signal by inducing trimers survival in a xenogeneic human T-cell–dependent mouse model of of their cognate receptors. As a biologically active heterotrimer, graft-versus-host disease (GVHD) (11). Lymphotoxin(LT)α1β2 is unique in the TNF superfamily. How the TNFRSF members are typically activated by TNFSF-induced three unique potential receptor-binding interfaces in LTα1β2 trig- trimerization or higher order oligomerization, resulting in initiation ger signaling via LTβ Receptor (LTβR) resulting in lymphoid organ- of intracellular signaling processes including the canonical and ogenesis and propagation of inflammatory signals is poorly noncanonical NF-κB pathways (2, 3). Ligand–receptor interactions α β understood. Here we show that LT 1 2 possesses two binding induce higher order assemblies formed between adaptor motifs in sites for LTβR with distinct affinities and that dimerization of LTβR the cytoplasmic regions of the receptors such as death domains or α β fi by LT 1 2 is necessary and suf cient for signal transduction. The TRAF-binding motifs and downstream signaling components such α β β crystal structure of a complex formed by LT 1 2,LT R, and the fab as Fas-associated protein with death domain (FADD), TNFR1- fragment of an antibody that blocks LTβR activation reveals the associated protein with death domain (TRADD), and TNFR-as- lower affinity receptor-binding site. -
LIGHT Is Expressed in Foam Cells and Involved in Destabilization of Atherosclerotic Plaques Through Induction of Matrix Metalloproteinase-9 and IL-8
LIGHT is Expressed in Foam Cells and Involved in Destabilization of Atherosclerotic Plaques through Induction of Matrix Metalloproteinase-9 and IL-8 Won-Jung Kim and Won-Ha Lee Department of Genetic Engineering, Kyungpook National University, Daegu, Korea ABSTRACT Background: LIGHT (TNFSF14) is a member of tumor necrosis factor superfamily and is the ligand for TR2 (TNFRSF14/HVEM). LIGHT is known to have pro- inflammatory roles in atherosclerosis. Methods: To find out the expression pattern of LIGHT in atherosclerotic plaques, immunohistochemical analysis was performed on human carotid atherosclerotic plaque specimens. LIGHT induced atherogenic events using human monocytic cell line THP-1 were also investigated. Results: Imm- unohistochemical analysis revealed expression of LIGHT and TR2 in foam cell rich regions in the atherosclerotic plaques. Double immunohistochemical analysis further confirmed the expression of LIGHT in foam cells. Stimulation of THP-1 cells, which express TR2, with either recombinant LIGHT or immobilized anti-TR2 monoclonal antibody induced interleukin-8 and matrix metalloproteinase(MMP)-9. Electrophoretic mobility shift assay demonstrated that LIGHT induces nuclear localization of tran- scription factor, nuclear factor (NF)-κB. LIGHT induced activation of MMP-9 is mediated by NF-κB, since treatment of THP-1 cells with the NF-κB inhibitor PDTC (pyrrolidine dithiocarbamate) completely blocked the activation of MMP-9. Conclusion: These data indicate that LIGHT is expressed in foam cells in atherosclerotic plaques and is involved in atherogenesis through activation of pro-atherogenic cytokine IL-8 and destabilization of plaque by inducing matrix degrading enzyme. (Immune Network 2004;4(2):116-122) Key Words: Atherosclerosis, inflammation, matrix metalloproteinase, LIGHT, TNFSF inflammatory cytokines and matrix metallopro- Introduction teinases, and expression of adhesion molecules and Members of tumor necrosis factor superfamily tissue factor (7,8). -
Death of HT29 Adenocarcinoma Cells Induced by TNF Family Receptor Activation Is Caspase-Independent and Displays Features of Both Apoptosis and Necrosis
Cell Death and Differentiation (2002) 9, 1321 ± 1333 ã 2002 Nature Publishing Group All rights reserved 1350-9047/02 $25.00 www.nature.com/cdd Death of HT29 adenocarcinoma cells induced by TNF family receptor activation is caspase-independent and displays features of both apoptosis and necrosis 1 ,1 CA Wilson and JL Browning* Introduction 1 Department of Exploratory Biology, Biogen, 12 Cambridge Center, Cambridge, Receptors in the TNF family can initiate both canonical MA 02142, USA apoptotic and necrotic death events.1 Prototypical apoptosis * Corresponding author: JL Browning, Department of Exploratory Biology, follows activation of the Fas receptor on T cells leading to Biogen, 12 Cambridge Center, Cambridge, MA 02142, USA; caspase activation and a cascade of events eventually Tel: 617 679-3312; Fax: 617 679-2304; E-mail: [email protected] culminating in the various hallmarks of apoptosis.2,3 Yet even Received 7.12.01; revised 26.1.02; accepted 22.7.02 in this familiar case, Fas/FADD can trigger necrosis in T cells 4,5 Edited by B Osborne in the absence of caspase signaling. In the well-studied L929 fibroblast line, Fas activation triggers apoptosis while TNF initiates a necrotic event that is actually enhanced by Abstract caspase inhibition.1 Similarly, TNF signaling in the presence of caspase inhibitors was reported to lead to the necrosis of The HT29 adenocarcinoma is a common model of epithelial NIH3T3 fibroblasts and the myeloid U937 cell line.6 It has cell differentiation and colorectal cancer and its death is an oft- been dogmatic that apoptosis is only initiated by those TNF analyzed response to TNF family receptor signaling. -
The Unexpected Role of Lymphotoxin Β Receptor Signaling
Oncogene (2010) 29, 5006–5018 & 2010 Macmillan Publishers Limited All rights reserved 0950-9232/10 www.nature.com/onc REVIEW The unexpected role of lymphotoxin b receptor signaling in carcinogenesis: from lymphoid tissue formation to liver and prostate cancer development MJ Wolf1, GM Seleznik1, N Zeller1,3 and M Heikenwalder1,2 1Department of Pathology, Institute of Neuropathology, University Hospital Zurich, Zurich, Switzerland and 2Institute of Virology, Technische Universita¨tMu¨nchen/Helmholtz Zentrum Mu¨nchen, Munich, Germany The cytokines lymphotoxin (LT) a, b and their receptor genesis. Consequently, the inflammatory microenviron- (LTbR) belong to the tumor necrosis factor (TNF) super- ment was added as the seventh hallmark of cancer family, whose founder—TNFa—was initially discovered (Hanahan and Weinberg, 2000; Colotta et al., 2009). due to its tumor necrotizing activity. LTbR signaling This was ultimately the result of more than 100 years of serves pleiotropic functions including the control of research—indeed—the first observation that tumors lymphoid organ development, support of efficient immune often arise at sites of inflammation was initially reported responses against pathogens due to maintenance of intact in the nineteenth century by Virchow (Balkwill and lymphoid structures, induction of tertiary lymphoid organs, Mantovani, 2001). Today, understanding the underlying liver regeneration or control of lipid homeostasis. Signal- mechanisms of why immune cells can be pro- or anti- ing through LTbR comprises the noncanonical/canonical carcinogenic in different types of tumors and which nuclear factor-jB (NF-jB) pathways thus inducing cellular and molecular inflammatory mediators (for chemokine, cytokine or adhesion molecule expression, cell example, macrophages, lymphocytes, chemokines or proliferation and cell survival. -
In Sickness and in Health: the Immunological Roles of the Lymphatic System
International Journal of Molecular Sciences Review In Sickness and in Health: The Immunological Roles of the Lymphatic System Louise A. Johnson MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, UK; [email protected] Abstract: The lymphatic system plays crucial roles in immunity far beyond those of simply providing conduits for leukocytes and antigens in lymph fluid. Endothelial cells within this vasculature are dis- tinct and highly specialized to perform roles based upon their location. Afferent lymphatic capillaries have unique intercellular junctions for efficient uptake of fluid and macromolecules, while expressing chemotactic and adhesion molecules that permit selective trafficking of specific immune cell subsets. Moreover, in response to events within peripheral tissue such as inflammation or infection, soluble factors from lymphatic endothelial cells exert “remote control” to modulate leukocyte migration across high endothelial venules from the blood to lymph nodes draining the tissue. These immune hubs are highly organized and perfectly arrayed to survey antigens from peripheral tissue while optimizing encounters between antigen-presenting cells and cognate lymphocytes. Furthermore, subsets of lymphatic endothelial cells exhibit differences in gene expression relating to specific func- tions and locality within the lymph node, facilitating both innate and acquired immune responses through antigen presentation, lymph node remodeling and regulation of leukocyte entry and exit. This review details the immune cell subsets in afferent and efferent lymph, and explores the mech- anisms by which endothelial cells of the lymphatic system regulate such trafficking, for immune surveillance and tolerance during steady-state conditions, and in response to infection, acute and Citation: Johnson, L.A. -
Defining Natural Antibodies
PERSPECTIVE published: 26 July 2017 doi: 10.3389/fimmu.2017.00872 Defining Natural Antibodies Nichol E. Holodick1*, Nely Rodríguez-Zhurbenko2 and Ana María Hernández2* 1 Department of Biomedical Sciences, Center for Immunobiology, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States, 2 Natural Antibodies Group, Tumor Immunology Division, Center of Molecular Immunology, Havana, Cuba The traditional definition of natural antibodies (NAbs) states that these antibodies are present prior to the body encountering cognate antigen, providing a first line of defense against infection thereby, allowing time for a specific antibody response to be mounted. The literature has a seemingly common definition of NAbs; however, as our knowledge of antibodies and B cells is refined, re-evaluation of the common definition of NAbs may be required. Defining NAbs becomes important as the function of NAb production is used to define B cell subsets (1) and as these important molecules are shown to play numerous roles in the immune system (Figure 1). Herein, we aim to briefly summarize our current knowledge of NAbs in the context of initiating a discussion within the field of how such an important and multifaceted group of molecules should be defined. Edited by: Keywords: natural antibody, antibodies, natural antibody repertoire, B-1 cells, B cell subsets, B cells Harry W. Schroeder, University of Alabama at Birmingham, United States NATURAL ANTIBODY (NAb) PRODUCING CELLS Reviewed by: Andre M. Vale, Both murine and human NAbs have been discussed in detail since the late 1960s (2, 3); however, Federal University of Rio cells producing NAbs were not identified until 1983 in the murine system (4, 5). -
Loss of Lymphotoxin Alpha-Expressing Memory B Cells Correlates with Metastasis of Human Primary Melanoma
diagnostics Article Loss of Lymphotoxin Alpha-Expressing Memory B Cells Correlates with Metastasis of Human Primary Melanoma Franziska Werner 1 , Christine Wagner 1, Martin Simon 1, Katharina Glatz 2, Kirsten D. Mertz 3,4 , Heinz Läubli 5 , Erika Richtig 6, Johannes Griss 7 and Stephan N. Wagner 1,* 1 Laboratory of Molecular Dermato-Oncology and Tumor Immunology, Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria; [email protected] (F.W.); [email protected] (C.W.); [email protected] (M.S.) 2 Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; [email protected] 3 Institute of Pathology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; [email protected] 4 University of Basel, 4001 Basel, Switzerland 5 Laboratory for Cancer Immunotherapy, Department of Biomedicine and Medical Oncology, Department of Internal Medicine, University Hospital Basel, 4031 Basel, Switzerland; [email protected] 6 Department of Dermatology, Medical University of Graz, 8036 Graz, Austria; [email protected] 7 Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria; [email protected] * Correspondence: [email protected] Abstract: Activated antigen-experienced B cells play an unexpected complex role in anti-tumor immunity in human melanoma patients. However, correlative studies between B cell infiltration and Citation: Werner, F.; Wagner, C.; tumor progression are limited by the lack of distinction between functional B cell subtypes. In this Simon, M.; Glatz, K.; Mertz, K.D.; study, we examined a series of 59 primary and metastatic human cutaneous melanoma specimens Läubli, H.; Richtig, E.; Griss, J.; with B cell infiltration. -
The Role of CXCR5 and Its Ligand CXCL13 in The
European Journal of Endocrinology (2004) 150 225–234 ISSN 0804-4643 EXPERIMENTAL STUDY The role of CXCR5 and its ligand CXCL13 in the compartmentalization of lymphocytes in thyroids affected by autoimmune thyroid diseases G Aust, D Sittig, L Becherer1, U Anderegg2, A Schu¨tz3, P Lamesch1 and E Schmu¨cking Institute of Anatomy, 1Department of Surgery, 2Department of Dermatology and 3 Institute of Pathology, University of Leipzig, Leipzig, Germany (Correspondence should be addressed to G Aust, University of Leipzig, Institute of Anatomy, Ph-Rosenthal-Strasse 55, Leipzig, 04103, Germany; Email: [email protected]) Abstract Objective: Graves’ disease (GD) and Hashimoto’s thyroiditis (HT) are characterized by lymphocytic infiltrates partly resembling secondary lymphoid follicles in the thyroid. CXCR5 and its ligand CXCL13 regulate compartmentalization of B- and T-cells in secondary lymphoid organs. The aim of the study was to elucidate the role of this chemokine receptor–ligand pair in thyroid autoimmunity. Methods: Peripheral blood and thyroid-derived lymphocyte subpopulations were examined by flow cyto- metry for CXCR5. CXCR5 and CXCL13 cDNA were quantified in thyroid tissues by real-time RT-PCR. Results: We found no differences between the percentages of peripheral blood CXCR5þ T- and B-cells in GD patients (n ¼ 10) and healthy controls (n ¼ 10). In GD patients, the number of memory CD4þ cells expressing CXCR5 which are functionally characterized as follicular B helper T-cells is higher in thyroid- derived (18^3%) compared with peripheral blood T-lymphocytes (8^2%). The highest CXCL13 mRNA levels were found in HT (n ¼ 2, 86.1^1.2 zmol (10221 mol) cDNA/PCR) followed by GD tissues (n ¼ 16, 9.6^3.5). -
Etters to the Ditor
LETTERS TO THE EDITOR even in patients with modest or no changes in BM tumor CXCL13 levels are elevated in patients with infiltration, suggesting a contributing mechanism in addi- Waldenström macroglobulinemia, and are tion to tumor debulking.6 Anemia in some WM patients predictive of major response to ibrutinib may be related to elevated hepcidin levels produced by LPL cells.7 However, the effect of ibrutinib on hepcidin Waldenström macroglobulinemia (WM) is character- remains unknown. Serum cytokines are important in ized by bone marrow (BM) infiltration of monoclonal WM biology and can be produced either by the malig- Immunoglobulin M (IgM) secreting lymphoplasmacytic nant cells, the surrounding microenvironmental cells, as lymphoma (LPL), and typically presents with anemia. well as by cells of the immune system.8 The anti-tumor MYD88 and CXCR4 activating somatic mutations effect of ibrutinib may impact all of these compartments, (CXCR4MUT) are common in WM, and found in 90-95% 1–3 including cytokines that may support growth and sur- and 35-40% of WM patients, respectively. Activating vival of tumor cells, and contribute to morbidity in WM, mutations in MYD88 support tumor growth via nuclear 9,10 factor kappa-light-chain enhancer-of-activated B-cells including anemia. As such, we aimed to characterize the serum cytokine profile in WM patients based on (NF-κB), which is triggered by Interleukin (IL)-1 receptor- associated kinases (IRAK4/IRAK1) and Bruton’s tyrosine MYD88 and CXCR4 mutation status, and to characterize kinase (BTK).4 A distinct transcriptome signature based serum cytokine and hepcidin changes in response to ibru- on both MYD88 and CXCR4 mutation status has been tinib therapy.