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Zhu R, Yao X, Li W. Langerhans cells and skin immune diseases. Eur J Immunol 2024:e2250280. [PMID: 39030782 DOI: 10.1002/eji.202250280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 07/22/2024]
Abstract
Langerhans cells (LCs) are the key antigen-presenting cells in the epidermis in normal conditions and respond differentially to environmental and/or endogenous stimuli, exerting either proinflammatory or anti-inflammatory effects. Current knowledge about LCs mainly originates from studies utilizing mouse models, whereas with the development of single-cell techniques, there has been significant progress for human LCs, which has updated our understanding of the phenotype, ontogeny, differentiation regulation, and function of LCs. In this review, we delineated the progress of human LCs and summarized LCs' function in inflammatory skin diseases, providing new ideas for precise regulation of LC function in the prevention and treatment of skin diseases.
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Affiliation(s)
- Ronghui Zhu
- Department of Dermatology, Shanghai Institute of Dermatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Department of Dermatology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
- Hubei Province & Key Laboratory of Skin Infection and Immunity, Wuhan, P. R. China
| | - Xu Yao
- Department, of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, P. R. China
| | - Wei Li
- Department of Dermatology, Shanghai Institute of Dermatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
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2
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Wang M, Rajkumar S, Lai Y, Liu X, He J, Ishikawa T, Nallapothula D, Singh RR. Tertiary lymphoid structures as local perpetuators of organ-specific immune injury: implication for lupus nephritis. Front Immunol 2023; 14:1204777. [PMID: 38022566 PMCID: PMC10644380 DOI: 10.3389/fimmu.2023.1204777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
In response to inflammatory stimuli in conditions such as autoimmune disorders, infections and cancers, immune cells organize in nonlymphoid tissues, which resemble secondary lymphoid organs. Such immune cell clusters are called tertiary lymphoid structures (TLS). Here, we describe the potential role of TLS in the pathogenesis of autoimmune disease, focusing on lupus nephritis, a condition that incurs major morbidity and mortality. In the kidneys of patients and animals with lupus nephritis, the presence of immune cell aggregates with similar cell composition, structure, and gene signature as lymph nodes and of lymphoid tissue-inducer and -organizer cells, along with evidence of communication between stromal and immune cells are indicative of the formation of TLS. TLS formation in kidneys affected by lupus may be instigated by local increases in lymphorganogenic chemokines such as CXCL13, and in molecules associated with leukocyte migration and vascularization. Importantly, the presence of TLS in kidneys is associated with severe tubulointerstitial inflammation, higher disease activity and chronicity indices, and poor response to treatment in patients with lupus nephritis. TLS may contribute to the pathogenesis of lupus nephritis by increasing local IFN-I production, facilitating the recruitment and supporting survival of autoreactive B cells, maintaining local production of systemic autoantibodies such as anti-dsDNA and anti-Sm/RNP autoantibodies, and initiating epitope spreading to local autoantigens. Resolution of TLS, along with improvement in lupus, by treating animals with soluble BAFF receptor, docosahexaenoic acid, complement inhibitor C4BP(β-), S1P1 receptor modulator Cenerimod, dexamethasone, and anti-CXCL13 further emphasizes a role of TLS in the pathogenesis of lupus. However, the mechanisms underlying TLS formation and their roles in the pathogenesis of lupus nephritis are not fully comprehended. Furthermore, the lack of non-invasive methods to visualize/quantify TLS in kidneys is also a major hurdle; however, recent success in visualizing TLS in lupus-prone mice by photon emission computed tomography provides hope for early detection and manipulation of TLS.
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Affiliation(s)
- Meiying Wang
- Department of Rheumatology and Immunology, Shenzhen Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
- Peking University Shenzhen Hosiptal, Shenzhen, China
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, CA, United States
| | - Snehin Rajkumar
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, CA, United States
| | - Yupeng Lai
- Department of Rheumatology and Immunology, Shenzhen Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xingjiao Liu
- Department of Rheumatology and Immunology, Shenzhen Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Jing He
- Department of Rheumatology and Immunology, Shenzhen Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
- Department of Nephrology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Tatsuya Ishikawa
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, CA, United States
| | - Dhiraj Nallapothula
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, CA, United States
| | - Ram Raj Singh
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, CA, United States
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
- Molecular Toxicology Interdepartmental Program, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
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3
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Maz MP, Martens JWS, Hannoudi A, Reddy AL, Hile GA, Kahlenberg JM. Recent advances in cutaneous lupus. J Autoimmun 2022; 132:102865. [PMID: 35858957 PMCID: PMC10082587 DOI: 10.1016/j.jaut.2022.102865] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 11/25/2022]
Abstract
Cutaneous lupus erythematosus (CLE) is an inflammatory and autoimmune skin condition that affects patients with systemic lupus erythematosus (SLE) and exists as an isolated entity without associated SLE. Flares of CLE, often triggered by exposure to ultraviolet (UV) light result in lost productivity and poor quality of life for patients and can be associated with trigger of systemic inflammation. In the past 10 years, the knowledge of CLE etiopathogenesis has grown, leading to promising targets for better therapies. Development of lesions likely begins in a pro-inflammatory epidermis, conditioned by excess type I interferon (IFN) production to undergo increased cell death and inflammatory cytokine production after UV light exposure. The reasons for this inflammatory predisposition are not well-understood, but may be an early event, as ANA + patients without criteria for autoimmune disease exhibit similar (although less robust) findings. Non-lesional skin of SLE patients also exhibits increased innate immune cell infiltration, conditioned by excess IFNs to release pro-inflammatory cytokines, and potentially increase activation of the adaptive immune system. Plasmacytoid dendritic cells are also found in non-lesional skin and may contribute to type I IFN production, although this finding is now being questioned by new data. Once the inflammatory cycle begins, lesional infiltration by numerous other cell populations ensues, including IFN-educated T cells. The heterogeneity amongst lesional CLE subtypes isn't fully understood, but B cells appear to discriminate discoid lupus erythematosus from other subtypes. Continued discovery will provide novel targets for additional therapeutic pursuits. This review will comprehensively discuss the contributions of tissue-specific and immune cell populations to the initiation and propagation of disease.
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Affiliation(s)
- Mitra P Maz
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA; Program in Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jacob W S Martens
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA; Program in Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Andrew Hannoudi
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Alayka L Reddy
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Grace A Hile
- Department of Dermatology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - J Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Dermatology, University of Michigan, Ann Arbor, MI, 48109, USA.
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4
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Scheib N, Tiemann J, Becker C, Probst HC, Raker VK, Steinbrink K. The Dendritic Cell Dilemma in the Skin: Between Tolerance and Immunity. Front Immunol 2022; 13:929000. [PMID: 35837386 PMCID: PMC9275407 DOI: 10.3389/fimmu.2022.929000] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022] Open
Abstract
Dendritic cells (DC) are uniquely capable of initiating and directing immune responses. The range of their activities grounds in the heterogeneity of DC subsets and their functional plasticity. Numerical and functional DC changes influence the development and progression of disease, and correction of such dysregulations has the potential to treat disease causally. In this review, we discuss the major advances in our understanding of the regulation of DC lineage formation, differentiation, and function in the skin. We describe the alteration of DC in disease as well as possibilities for therapeutic reprogramming with a focus on tolerogenic DC. Because regulatory T cells (Treg) are indispensable partners of DC in the induction and control of tolerance, we pay special attention to the interactions with these cells. Above all, we would like to arouse fascination for this cell type and its therapeutic potential in skin diseases.
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Affiliation(s)
- Nils Scheib
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Jessica Tiemann
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Christian Becker
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Hans Christian Probst
- Institute for Immunology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Verena Katharina Raker
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
- *Correspondence: Verena Katharina Raker,
| | - Kerstin Steinbrink
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
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Shipman WD, Chyou S, Ramanathan A, Izmirly PM, Sharma S, Pannellini T, Dasoveanu DC, Qing X, Magro CM, Granstein RD, Lowes MA, Pamer EG, Kaplan DH, Salmon JE, Mehrara BJ, Young JW, Clancy RM, Blobel CP, Lu TT. A protective Langerhans cell-keratinocyte axis that is dysfunctional in photosensitivity. Sci Transl Med 2019; 10:10/454/eaap9527. [PMID: 30111646 DOI: 10.1126/scitranslmed.aap9527] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 07/13/2018] [Indexed: 12/14/2022]
Abstract
Photosensitivity, or skin sensitivity to ultraviolet radiation (UVR), is a feature of lupus erythematosus and other autoimmune and dermatologic conditions, but the mechanistic underpinnings are poorly understood. We identify a Langerhans cell (LC)-keratinocyte axis that limits UVR-induced keratinocyte apoptosis and skin injury via keratinocyte epidermal growth factor receptor (EGFR) stimulation. We show that the absence of LCs in Langerin-diphtheria toxin subunit A (DTA) mice leads to photosensitivity and that, in vitro, mouse and human LCs can directly protect keratinocytes from UVR-induced apoptosis. LCs express EGFR ligands and a disintegrin and metalloprotease 17 (ADAM17), the metalloprotease that activates EGFR ligands. Deletion of ADAM17 from LCs leads to photosensitivity, and UVR induces LC ADAM17 activation and generation of soluble active EGFR ligands, suggesting that LCs protect by providing activated EGFR ligands to keratinocytes. Photosensitive systemic lupus erythematosus (SLE) models and human SLE skin show reduced epidermal EGFR phosphorylation and LC defects, and a topical EGFR ligand reduces photosensitivity. Together, our data establish a direct tissue-protective function for LCs, reveal a mechanistic basis for photosensitivity, and suggest EGFR stimulation as a treatment for photosensitivity in lupus erythematosus and potentially other autoimmune and dermatologic conditions.
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Affiliation(s)
- William D Shipman
- Weill Cornell/Rockefeller/Sloan-Kettering Tri-Institutional MD-PhD Program, New York, NY 10065, USA.,Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA.,Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA
| | - Susan Chyou
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA
| | - Anusha Ramanathan
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA
| | - Peter M Izmirly
- Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Sneh Sharma
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Tania Pannellini
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA
| | - Dragos C Dasoveanu
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA.,Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medicine, New York, NY 10065, USA
| | - Xiaoping Qing
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA
| | - Cynthia M Magro
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | | | | | - Eric G Pamer
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Daniel H Kaplan
- Department of Dermatology, University of Pittsburgh, PA 15260, USA.,Department of Immunology, University of Pittsburgh, PA 15260, USA
| | - Jane E Salmon
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA.,Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA.,Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA.,Division of Rheumatology and Pediatric Rheumatology, Hospital for Special Surgery, New York, NY 10021, USA
| | - Babak J Mehrara
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - James W Young
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Rockefeller University, New York, NY 10065, USA.,Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA.,Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Robert M Clancy
- Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Carl P Blobel
- Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medicine, New York, NY 10065, USA.,Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA.,Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, NY 10021, USA.,Institute for Advanced Studies, Technical University Munich, Munich, Germany
| | - Theresa T Lu
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA. .,Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021, USA.,Division of Rheumatology and Pediatric Rheumatology, Hospital for Special Surgery, New York, NY 10021, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10065, USA
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King JK, Philips RL, Eriksson AU, Kim PJ, Halder RC, Lee DJ, Singh RR. Langerhans Cells Maintain Local Tissue Tolerance in a Model of Systemic Autoimmune Disease. THE JOURNAL OF IMMUNOLOGY 2015; 195:464-76. [PMID: 26071559 DOI: 10.4049/jimmunol.1402735] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 05/15/2015] [Indexed: 12/23/2022]
Abstract
Systemic autoimmune diseases such as lupus affect multiple organs, usually in a diverse fashion where only certain organs are affected in individual patients. It is unclear whether the "local" immune cells play a role in regulating tissue specificity in relation to disease heterogeneity in systemic autoimmune diseases. In this study, we used skin as a model to determine the role of tissue-resident dendritic cells (DCs) in local and systemic involvement within a systemic lupus disease model. Skin-resident DCs, namely, Langerhans cells (LCs), have been implicated in regulating tolerance or autoimmunity using elegant transgenic models, however, their role in local versus systemic immune regulation is unknown. We demonstrate that although lymphocytes from skin-draining lymph nodes of autoimmune-prone MRL/MpJ-Fas(lpr/lp) (r) (MRL-lpr) mice react spontaneously to a physiological skin self-Ag desmoglein-3, epicutaneous applications of desmoglein-3 induced tolerance that is dependent on LCs. Inducible ablation of LCs in adult preclinical MRL-lpr and MRL/MpJ-Fas(+/+) mice resulted in increased autoantibodies against skin Ags and markedly accelerated lupus dermatitis with increased local macrophage infiltration, but had no effect on systemic autoantibodies such as anti-dsDNA Abs or disease in other organs such as kidneys, lung, and liver. Furthermore, skin-draining lymph nodes of LC-ablated MRL-lpr mice had significantly fewer CD4(+) T cells producing anti-inflammatory cytokine IL-10 than LC-intact controls. These results indicate that a skin-resident DC population regulates local tolerance in systemic lupus and emphasize the importance of the local immune milieu in preventing tissue-specific autoimmunity, yet have no effect on systemic autoimmunity.
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Affiliation(s)
- Jennifer K King
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Rachael L Philips
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Anna U Eriksson
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Peter J Kim
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Ramesh C Halder
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Delphine J Lee
- Dirks/Dougherty Laboratory for Cancer Research, Department of Translational Immunology, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA 90404
| | - Ram Raj Singh
- Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; Molecular Toxicology Interdepartmental Program, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095; and Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
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9
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Holst K, Guseva D, Schindler S, Sixt M, Braun A, Chopra H, Pabst O, Ponimaskin E. Serotonin receptor 5-HT7 regulates morphology and migratory properties of dendritic cells. J Cell Sci 2015; 128:2866-80. [DOI: 10.1242/jcs.167999] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 06/15/2015] [Indexed: 01/01/2023] Open
Abstract
Dendritic cells (DCs) are potent antigen-presenting cells endowed with the unique ability to initiate adaptive immune responses upon inflammation. Inflammatory processes are often associated with an increased production of serotonin, which operates by activating specific receptors. However, the functional role of serotonin receptors in regulation of DC functions is poorly understood. Here we demonstrate that expression of serotonin receptor 5-HT7 (5-HT7R) as well as its down-stream effector Cdc42 is upregulated in DCs upon maturation. While DC maturation was independent of 5-HT7R, receptor stimulation affected DC morphology via Cdc42-mediated signaling. In addition, basal activity of 5-HT7R was required for the proper expression of the chemokine receptor CCR7, which is a key factor to control DC migration. Consistently, we observed that 5-HT7R enhances chemotactic motility of DCs in vitro by modulating their directionality and migration velocity. Accordingly, migration of DCs in murine colon explants was abolished after pharmacological receptor blockade. Our results indicate a critical role of 5-HT7R/Cdc42-mediated signaling in regulation of DC morphology and motility, suggesting 5-HT7R as a novel target for treatment of a variety of inflammatory and immune disorders.
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Affiliation(s)
- Katrin Holst
- Cellular Neurophysiology, Hannover Medical School, 30625 Hannover, Germany
| | - Daria Guseva
- Cellular Neurophysiology, Hannover Medical School, 30625 Hannover, Germany
| | - Susann Schindler
- Department of Airway Immunology, Fraunhofer Institute for Toxicology and Experimental Medicine, 30625 Hannover, Germany
| | - Michael Sixt
- Institute of Science and Technology Austria, A-3400 Klosterneuburg, Austria
| | - Armin Braun
- Department of Airway Immunology, Fraunhofer Institute for Toxicology and Experimental Medicine, 30625 Hannover, Germany
| | - Himpriya Chopra
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany
| | - Oliver Pabst
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany
- Institute of Molecular Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Evgeni Ponimaskin
- Cellular Neurophysiology, Hannover Medical School, 30625 Hannover, Germany
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10
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Maina V, Marrella V, Mantero S, Cassani B, Fontana E, Anselmo A, Del Prete A, Sozzani S, Vezzoni P, Poliani PL, Villa A. Hypomorphic mutation in the RAG2 gene affects dendritic cell distribution and migration. J Leukoc Biol 2013; 94:1221-30. [DOI: 10.1189/jlb.0713365] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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11
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Li W, Zhang Z, Saxon A, Zhang K. Prevention of oral food allergy sensitization via skin application of food allergen in a mouse model. Allergy 2012; 67:622-9. [PMID: 22339388 DOI: 10.1111/j.1398-9995.2012.02798.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND Treatment options for food allergy remain limited. Development of novel approaches for the prevention and/or treatment of severe peanut allergy and other food allergies is urgently needed. The objective of this study was to test whether skin application of food allergen can be used as a prophylactic and/or therapeutic intervention for food allergy. METHODS Balb/C mice were given 5 weekly cutaneous application of complete peanut extract (CPE) or ovalbumin (OVA) ranging from 10 to 1000 μg on the shaved back skin, followed by 5 weekly treatments with oral CPE or OVA plus cholera toxin to induce allergic reactivity to the food. At various time points, the immunologic responses and allergic clinical manifestations to allergens were examined. RESULTS Skin application of a 10-1000 μg dose of CPE or OVA to structurally intact skin did not lead to allergic sensitization to peanut or OVA. Rather, cutaneous allergen application blocked, in a dose-dependent fashion, the subsequent induction of the oral sensitization including inhibiting oral sensitization-induced CPE-specific IgE, IgG1, and IgG2a production, suppressing the peanut anaphylaxis, and modulating the oral sensitization-promoted cytokine production. The cutaneous OVA application also resulted in similar results as seen with CPE application. CONCLUSION Cutaneous application of intact skin with peanut or OVA can block the development of orally induced corresponding food allergies, suggesting that allergic tolerance to peanuts and OVA might be achieved via allergen cutaneous application.
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Affiliation(s)
| | - Z. Zhang
- Department of Dermatology; Xijing Hospital; Fourth Military Medical University; Xi'an; Shaanxi; China
| | - A. Saxon
- Hart and Louise Lyon Immunology Laboratory; Section of Clinical Immunology/Allergy; Division of Pulmonary, Critical Care and Clinical Immunology/Allergy; Department of Medicine; David Geffen School of Medicine at UCLA; Los Angeles; CA; USA
| | - K. Zhang
- Hart and Louise Lyon Immunology Laboratory; Section of Clinical Immunology/Allergy; Division of Pulmonary, Critical Care and Clinical Immunology/Allergy; Department of Medicine; David Geffen School of Medicine at UCLA; Los Angeles; CA; USA
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12
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Abstract
Langerhans cells (LC) are dendritic cell that resides in the epidermis of skin. Paul Langerhans originally observed and named this epinonymous cell more than 140 years ago. Their network-like distribution and dendritic processes that extended up into the stratum corneum convinced him that they represented peripheral nerve cells. It was not determined until almost 100 years later that LC are, in fact, bone marrow-derived and function as skin-resident antigen presenting cells. Many studies have shown that LC are highly immunostimulatory. Recently, data have begun to accumulate suggesting LC have immunoregulatory properties. This review will focus on the participation of LC in the development and regulation of adaptive immune responses.
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Affiliation(s)
- Botond Z Igyarto
- Department of Dermatology, Center for Immunology, University of Minnesota, Minneapolis, MN 55414, USA
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13
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Fulcher JA, Chang MH, Wang S, Almazan T, Hashimi ST, Eriksson AU, Wen X, Pang M, Baum LG, Singh RR, Lee B. Galectin-1 co-clusters CD43/CD45 on dendritic cells and induces cell activation and migration through Syk and protein kinase C signaling. J Biol Chem 2009; 284:26860-70. [PMID: 19635795 DOI: 10.1074/jbc.m109.037507] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Galectin-1 is a galactoside-binding lectin expressed in multiple tissues that has pleiotropic immunomodulatory functions. We previously showed that galectin-1 activates human monocyte-derived dendritic cells (MDDCs) and triggers a specific genetic program that up-regulates DC migration through the extracellular matrix, an integral property of mucosal DCs. Here, we identify the galectin-1 receptors on MDDCs and immediate downstream effectors of galectin-1-induced MDDC activation and migration. Galectin-1 binding to surface CD43 and CD45 on MDDCs induced an unusual unipolar co-clustering of these receptors and activates a dose-dependent calcium flux that is abrogated by lactose. Using a kinome screen and a systems biology approach, we identified Syk and protein kinase C tyrosine kinases as mediators of the DC activation effects of galectin-1. Galectin-1, but not lipopolysaccharide, stimulated Syk phosphorylation and recruitment of phosphorylated Syk to the CD43 and CD45 co-cluster on MDDCs. Inhibitors of Syk and protein kinase C signaling abrogated galectin-1-induced DC activation as monitored by interleukin-6 production; and MMP-1, -10, and -12 gene up-regulation; and enhanced migration through the extracellular matrix. The latter two are specific features of galectin-1-activated DCs. Interestingly, we also found that galectin-1 can prime DCs to respond more quickly to low dose lipopolysaccharide stimulation. Finally, we underscore the biological relevance of galectin-1-enhanced DC migration by showing that intradermal injection of galectin-1 in MRL-fas mice, which have a defect in skin DC emigration, increased the in vivo migration of dermal DCs to draining lymph nodes.
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Affiliation(s)
- Jennifer A Fulcher
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA
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The protective effects of ultraviolet A1 irradiation on spontaneous lupus erythematosus-like skin lesions in MRL/lpr mice. Clin Dev Immunol 2009; 2009:673952. [PMID: 19434230 PMCID: PMC2673515 DOI: 10.1155/2009/673952] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Accepted: 02/21/2009] [Indexed: 01/29/2023]
Abstract
We investigated the effects of ultraviolet A1 (UVA1) irradiation on spontaneous lupus erythematosus- (LE-) like skin lesions of MRL/lpr mice, using a disease prevention model. UVA1 irradiation significantly inhibited the development of LE-like skin lesions, without obvious changes of the disease including renal disease and serum antinuclear antibody levels. Besides the massive infiltration of mast cells in the LE-like skin lesions, in the nonlesional skins, more mast cells infiltrated in the UVA1-irradiated group compared with the nonirradiated group. Although apoptotic cells were remarkably seen in the dermis of UVA1-irradiated mice, those cells were hardly detectable in the dermis of the nonirradiated mice without skin lesions. Further analysis showed that some of those apoptotic cells were mast cells. Thus, UVA1 might exert its effects, at least in part, through the induction of the apoptosis of pathogenic mast cells. Our results supported the clinical efficacy of UVA1 irradiation for skin lesions of lupus patients.
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