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Min KY, Kim DK, Jo MG, Choi MY, Lee D, Park JW, Park YJ, Chung Y, Kim YM, Park YM, Kim HS, Choi WS. IL-27-induced PD-L1 highSca-1 + innate lymphoid cells suppress contact hypersensitivity in an IL-10-dependent manner. Exp Mol Med 2024; 56:616-629. [PMID: 38424193 PMCID: PMC10984996 DOI: 10.1038/s12276-024-01187-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 11/20/2023] [Accepted: 12/26/2023] [Indexed: 03/02/2024] Open
Abstract
Innate lymphoid cells (ILCs) play an important role in maintaining tissue homeostasis and various inflammatory responses. ILCs are typically classified into three subsets, as is the case for T-cells. Recent studies have reported that IL-10-producing type 2 ILCs (ILC210s) have an immunoregulatory function dependent on IL-10. However, the surface markers of ILC210s and the role of ILC210s in contact hypersensitivity (CHS) are largely unknown. Our study revealed that splenic ILC210s are extensively included in PD-L1highSca-1+ ILCs and that IL-27 amplifies the development of PD-L1highSca-1+ ILCs and ILC210s. Adoptive transfer of PD-L1highSca-1+ ILCs suppressed oxazolone-induced CHS in an IL-10-dependent manner Taken together, our results demonstrate that ILC210s are critical for the control of CHS and suggest that ILC210s can be used as target cells for the treatment of CHS.
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Affiliation(s)
- Keun Young Min
- Department of Immunology, School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea
| | - Do-Kyun Kim
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, 54531, Republic of Korea
| | - Min Geun Jo
- Department of Immunology, School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea
| | - Min Yeong Choi
- Department of Immunology, School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea
| | - Dajeong Lee
- Department of Immunology, School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea
| | - Jeong Won Park
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan, 49315, Republic of Korea
| | - Young-Jun Park
- College of Pharmacy, Jeju National University, Jeju, 63243, Republic of Korea
| | - Yeonseok Chung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young Mi Kim
- Department of Preventive Pharmacy, College of Pharmacy, Duksung Women's University, Seoul, 01369, Republic of Korea
| | - Yeong-Min Park
- Department of Immunology, School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea
| | - Hyuk Soon Kim
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan, 49315, Republic of Korea.
| | - Wahn Soo Choi
- Department of Immunology, School of Medicine, Konkuk University, Chungju, 27478, Republic of Korea.
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Muñoz-Ruiz M, Llorian M, D'Antuono R, Pavlova A, Mavrigiannaki AM, McKenzie D, García-Cassani B, Iannitto ML, Wu Y, Dart R, Davies D, Jamal-Hanjani M, Jandke A, Ushakov DS, Hayday AC. IFN-γ-dependent interactions between tissue-intrinsic γδ T cells and tissue-infiltrating CD8 T cells limit allergic contact dermatitis. J Allergy Clin Immunol 2023; 152:1520-1540. [PMID: 37562754 DOI: 10.1016/j.jaci.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 06/27/2023] [Accepted: 07/21/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Elicitation of allergic contact dermatitis (ACD), an inflammatory type 4 hypersensitivity disease, induces skin infiltration by polyclonal effector CD8 αβ T cells and precursors of tissue-resident memory T (TRM) cells. Because TRM have long-term potential to contribute to body-surface immunoprotection and immunopathology, their local regulation needs a fuller understanding. OBJECTIVE We sought to investigate how TRM-cell maturation might be influenced by innate-like T cells pre-existing within many epithelia. METHODS This study examined CD8+ TRM-cell maturation following hapten-induced ACD in wild-type mice and in strains harboring altered compartments of dendritic intraepidermal γδ T cells (DETCs), a prototypic tissue-intrinsic, innate-like T-cell compartment that reportedly regulates ACD, but by no elucidated mechanism. RESULTS In addition to eliciting CD8 TRM, ACD induced DETC activation and an intimate coregulatory association of the 2 cell types. This depended on DETC sensing IFN-γ produced by CD8 cells and involved programmed death-ligand 1 (PD-L1). Thus, in mice lacking DETC or lacking IFN-γ receptor solely on γδ cells, ACD-elicited CD8 T cells showed enhanced proliferative and effector potentials and reduced motility, collectively associated with exaggerated ACD pathology. Comparable dysregulation was elicited by PD-L1 blockade in vitro, and IFN-γ-regulated PD-L1 expression was a trait of human skin-homing and intraepithelial γδ T cells. CONCLUSIONS The size and quality of the tissue-infiltrating CD8 T-cell response during ACD can be profoundly regulated by local innate-like T cells responding to IFN-γ and involving PD-L1. Thus, interindividual and tissue-specific variations in tissue-intrinsic lymphocytes may influence responses to allergens and other challenges and may underpin inflammatory pathologies such as those repeatedly observed in γδ T-cell-deficient settings.
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Affiliation(s)
- Miguel Muñoz-Ruiz
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom; Department of Immunology, Ophthalmology and Ear, Nose and Throat, Complutense University School of Medicine and 12 de Octubre Health Research Institute, Madrid, Spain
| | - Miriam Llorian
- Bioinformatics and Biostatistics science technology platform (STP), The Francis Crick Institute, London, United Kingdom
| | - Rocco D'Antuono
- Light Microscopy STP, The Francis Crick Institute, London, United Kingdom
| | - Anna Pavlova
- Department of Biology, Division of Genetics, Nikolaus-Fiebiger-Center for Molecular Medicine, Erlangen, Germany
| | | | - Duncan McKenzie
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom
| | - Bethania García-Cassani
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Maria Luisa Iannitto
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom
| | - Yin Wu
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom; Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom
| | - Robin Dart
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom
| | - Daniel Davies
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom
| | - Mariam Jamal-Hanjani
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, United Kingdom
| | - Anett Jandke
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom
| | - Dmitry S Ushakov
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom; Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
| | - Adrian C Hayday
- Immunosurveillance Laboratory, The Francis Crick Institute, London, United Kingdom; Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom; Centre for Inflammation Biology and Cancer Immunology, King's College London, London, United Kingdom.
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3
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Okamoto M, Omori-Miyake M, Kuwahara M, Okabe M, Eguchi M, Yamashita M. The Inhibition of Glycolysis in T Cells by a Jak Inhibitor Ameliorates the Pathogenesis of Allergic Contact Dermatitis in Mice. J Invest Dermatol 2023; 143:1973-1982.e5. [PMID: 37028703 DOI: 10.1016/j.jid.2023.03.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/31/2023] [Accepted: 03/09/2023] [Indexed: 04/08/2023]
Abstract
Allergic contact dermatitis (ACD) and atopic dermatitis develop through delayed-type hypersensitivity reactions mediated by T cells. The development of immunomodulatory drugs, such as Jak inhibitors, would be useful for the long-term management of these diseases owing to their profile of favorable adverse effects. However, the efficacy of Jak inhibitors for ACD treatment has not been fully determined under a variety of settings. Therefore, we evaluated the effects of ruxolitinib, a Jak inhibitor for Jak1 and Jak2, using a mouse ACD model. As a result, the lower numbers of immune cells, including CD4+ T cells, CD8+ T cells, neutrophils, and possibly macrophages, as well as milder pathophysiological aspects have been observed in the inflamed skin of ACD with the administration of ruxolitinib. In addition, the treatment of differentiating T cells with ruxolitinib downregulated the level of IL-2-mediated glycolysis in vitro. Furthermore, symptoms of ACD did not develop in T-cell-specific Pgam1-deficient mice whose T cells had no glycolytic capacity. Taken together, our data suggest that the downregulation of glycolysis in T cells by ruxolitinib could be an important factor in the suppression of ACD development in mice.
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Affiliation(s)
- Michiko Okamoto
- Department of Pediatrics, Ehime University Graduate School of Medicine, Ehime, Japan; Department of Immunology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Miyuki Omori-Miyake
- Department of Infections and Host Defenses, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Makoto Kuwahara
- Department of Immunology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Masataka Okabe
- Department of Anatomy, The Jikei University School of Medicine, Tokyo, Japan
| | - Mariko Eguchi
- Department of Pediatrics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Masakatsu Yamashita
- Department of Immunology, Ehime University Graduate School of Medicine, Ehime, Japan; Department of Infections and Host Defenses, Ehime University Graduate School of Medicine, Ehime, Japan.
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Lichen Sclerosus: A Current Landscape of Autoimmune and Genetic Interplay. Diagnostics (Basel) 2022; 12:diagnostics12123070. [PMID: 36553077 PMCID: PMC9777366 DOI: 10.3390/diagnostics12123070] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/24/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Lichen sclerosus (LS) is an acquired chronic inflammatory dermatosis predominantly affecting the anogenital area with recalcitrant itching and soreness. Progressive or persistent LS may cause urinary and sexual disturbances and an increased risk of local skin malignancy with a prevalence of up to 11%. Investigations on lipoid proteinosis, an autosomal recessive genodermatosis caused by loss-of-function mutations in the extracellular matrix protein 1 (ECM1) gene, led to the discovery of a humoral autoimmune response to the identical molecule in LS, providing evidence for an autoimmune and genetic counterpart targeting ECM1. This paper provides an overview of the fundamental importance and current issue of better understanding the immunopathology attributed to ECM1 in LS. Furthermore, we highlight the pleiotropic action of ECM1 in homeostatic and structural maintenance of skin biology as well as in a variety of human disorders possibly associated with impaired or gained ECM1 function, including the inflammatory bowel disease ulcerative colitis, Th2 cell-dependent airway allergies, T-cell and B-cell activation, and the demyelinating central nervous system disease multiple sclerosis, to facilitate sharing the concept as a plausible therapeutic target of this attractive molecule.
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Dagher J, Szely N, Valarezo ET, Antonios D, Azouri H, Pallardy M. P10-03 A new model to detect and analyze the human T lymphocyte response to chemical sensitizers. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Funch AB, Mraz V, Gadsbøll AØ, Jee MH, Weber JF, Ødum N, Woetmann A, Johansen JD, Geisler C, Bonefeld CM. CD8 + tissue-resident memory T cells recruit neutrophils that are essential for flare-ups in contact dermatitis. Allergy 2022; 77:513-524. [PMID: 34169536 DOI: 10.1111/all.14986] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/10/2021] [Accepted: 05/24/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Allergic contact dermatitis (ACD) is classically described as a delayed-type hypersensitivity reaction. However, patients often experience flare-ups characterized by itching erythema, edema, and often vesicles occurring within hours after re-exposure of previously sensitized skin to the specific contact allergen. Recent studies have indicated that skin-resident memory T (TRM ) cells play a central role in ACD. However, the pathogenic role of TRM cells in allergen-induced flare-ups is not known. METHODS By the use of various mouse models and cell depletion protocols, we investigated the role of epidermal TRM cells in flare-up reactions to the experimental contact allergen 1-fluoro-2,4-dinitrobenzene. The inflammatory response was measured by changes in ear thickness, and the cellular composition in epidermis was determined by flow cytometry and confocal microscopy. Finally, adaptive transfer and inhibitors were used to determine the role of TRM cells, neutrophils, and CXCL1/CXCL2 in the response. RESULTS We show that CD8+ TRM cells initiate massive infiltration of neutrophils in the epidermis within 12 h after re-exposure to the contact allergen. Depletion of neutrophils before re-exposure to the allergen abrogated the flare-up reactions. Furthermore, we demonstrate that CD8+ TRM cells mediate neutrophil recruitment by inducing CXCL1 and CXCL2 production in the skin, and that blockage of the C-X-C chemokine receptor type 1 and 2 inhibits flare-up reactions and neutrophil infiltration. CONCLUSION As the first, we show that epidermal CD8+ TRM cells cause ACD flare-ups by rapid recruitment of neutrophils to the epidermis.
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Affiliation(s)
- Anders B. Funch
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
- Department of Dermatology and Allergy National Allergy Research Center Copenhagen University Hospital Gentofte Hellerup Denmark
| | - Veronika Mraz
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
| | - Anne‐Sofie Ø. Gadsbøll
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
| | - Mia H. Jee
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
- Department of Dermatology and Allergy National Allergy Research Center Copenhagen University Hospital Gentofte Hellerup Denmark
| | - Julie F. Weber
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
| | - Niels Ødum
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
| | - Anders Woetmann
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
| | - Jeanne D. Johansen
- Department of Dermatology and Allergy National Allergy Research Center Copenhagen University Hospital Gentofte Hellerup Denmark
| | - Carsten Geisler
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
| | - Charlotte M. Bonefeld
- Department of Immunology and Microbiology Faculty of Health and Medical Sciences The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
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Hertzman RJ, Deshpande P, White KD, Gangula R, Chopra A, Ram R, Zic JA, Zwerner JP, Gibson A, Phillips EJ. Single-cell immunopathology of systemic contact allergy associated with corticosteroids. J Dermatol Sci 2021; 105:137-140. [PMID: 34974934 DOI: 10.1016/j.jdermsci.2021.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/02/2021] [Accepted: 12/15/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Rebecca J Hertzman
- Institute for Immunology and Infectious Disease, Murdoch University, Western Australia, Australia
| | - Pooja Deshpande
- Institute for Immunology and Infectious Disease, Murdoch University, Western Australia, Australia
| | - Katie D White
- Vanderbilt University Medical Centre, Nashville, TN, USA
| | - Rama Gangula
- Vanderbilt University Medical Centre, Nashville, TN, USA
| | - Abha Chopra
- Institute for Immunology and Infectious Disease, Murdoch University, Western Australia, Australia; Vanderbilt University Medical Centre, Nashville, TN, USA
| | - Ramesh Ram
- Institute for Immunology and Infectious Disease, Murdoch University, Western Australia, Australia
| | - John A Zic
- Vanderbilt University Medical Centre, Nashville, TN, USA
| | | | - Andrew Gibson
- Institute for Immunology and Infectious Disease, Murdoch University, Western Australia, Australia.
| | - Elizabeth J Phillips
- Institute for Immunology and Infectious Disease, Murdoch University, Western Australia, Australia; Vanderbilt University Medical Centre, Nashville, TN, USA
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8
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Lefevre M, Nosbaum A, Rozieres A, Lenief V, Mosnier A, Cortial A, Prieux M, De Bernard S, Nourikyan J, Jouve P, Buffat L, Hacard F, Ferrier‐Lebouedec M, Pralong P, Dzviga C, Herman A, Baeck M, Nicolas J, Vocanson M. Unique molecular signatures typify skin inflammation induced by chemical allergens and irritants. Allergy 2021; 76:3697-3712. [PMID: 34174113 DOI: 10.1111/all.14989] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/26/2021] [Accepted: 06/09/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Skin exposure to chemicals may induce an inflammatory disease known as contact dermatitis (CD). Distinguishing the allergic and irritant forms of CD often proves challenging in the clinic. METHODS To characterize the molecular signatures of chemical-induced skin inflammation, we conducted a comprehensive transcriptomic analysis on the skin lesions of 47 patients with positive patch tests to reference contact allergens and nonallergenic irritants. RESULTS A clear segregation was observed between allergen- and irritant-induced gene profiles. Distinct modules pertaining to the epidermal compartment, metabolism, and proliferation were induced by both contact allergens and irritants; whereas only contact allergens prompted strong activation of adaptive immunity, notably of cytotoxic T-cell responses. Our results also confirmed that: (a) unique pathways characterize allergen- and irritant-induced dermatitis; (b) the intensity of the clinical reaction correlates with the magnitude of immune activation. Finally, using a machine-learning approach, we identified and validated several minimal combinations of biomarkers to distinguish contact allergy from irritation. CONCLUSION These results highlight the value of molecular profiling of chemical-induced skin inflammation for improving the diagnosis of allergic versus irritant contact dermatitis.
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Affiliation(s)
- Marine‐Alexia Lefevre
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
- Department of Dermatology and Allergology Centre Hospitalier Universitaire de Saint‐Etienne Saint‐Priest‐en‐Jarez France
| | - Audrey Nosbaum
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
- Department of Allergy and Clinical Immunology Centre Hospitalier Lyon‐Sud Pierre‐Benite France
| | - Aurore Rozieres
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
| | - Vanina Lenief
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
| | - Amandine Mosnier
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
| | - Angèle Cortial
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
| | - Margaux Prieux
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
| | | | | | | | | | - Florence Hacard
- Department of Allergy and Clinical Immunology Centre Hospitalier Lyon‐Sud Pierre‐Benite France
| | | | - Pauline Pralong
- Department of Dermatology, Allergology and Photobiology Centre Hospitalier Universitaire Grenoble Alpes La Tronche France
| | - Charles Dzviga
- Department of Dermatology and Allergology Centre Hospitalier Universitaire de Saint‐Etienne Saint‐Priest‐en‐Jarez France
| | - Anne Herman
- Department of Dermatology Cliniques universitaires Saint‐Luc Université Catholique de Louvain Brussels Belgium
| | - Marie Baeck
- Department of Dermatology Cliniques universitaires Saint‐Luc Université Catholique de Louvain Brussels Belgium
| | - Jean‐François Nicolas
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
- Department of Allergy and Clinical Immunology Centre Hospitalier Lyon‐Sud Pierre‐Benite France
| | - Marc Vocanson
- CIRI, Centre International de Recherche en Infectiologie, (Team Epidermal Immunity and Allergy) INSERM, U1111 Univ LyonUniversité de Lyon 1Ecole Normale Supérieure de LyonCNRS, UMR 5308 Lyon France
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9
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Lefevre MA, Vocanson M, Nosbaum A. Role of tissue-resident memory T cells in the pathophysiology of allergic contact dermatitis. Curr Opin Allergy Clin Immunol 2021; 21:355-360. [PMID: 34155157 DOI: 10.1097/aci.0000000000000763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW We bring updated knowledge on tissue-resident memory T cells (TRM), underlining their major role in the recurrence and the severity of allergic contact dermatitis (ACD). RECENT FINDINGS ACD is a frequently encountered skin disease. It is defined as a delayed-type hypersensitivity reaction initiated by the recruitment of antigen-specific T cells into the skin of sensitized patients. ACD lesions tend to develop on already-exposed areas and worsen over time. That clinical observation has raised questions on the contribution of TRM to ACD recurrence and severity. TRM are memory T cells that persist in peripheral tissues, such as the skin, without recirculating through the blood. These cells provide effective immune memory against pathogens, but they may also participate in the development or exacerbation of numerous inflammatory diseases, including skin allergies. Recent works have demonstrated a major role for TRM in ACD pathophysiology. SUMMARY In ACD, TRM accumulate preferentially at the allergen contact site during the sensitization phase. Thereafter, these cells cause a rapid and intense response to any new allergen exposure. They also play a key role in flare-ups of ACD and the chronicity and severity of the disease. These aspects suggest that TRM may have an interest as therapeutic targets.
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Affiliation(s)
- Marine-Alexia Lefevre
- CIRI, Centre International de Recherche en Infectiologie (Team Epidermal Immunity and Allergy), INSERM, U1111, Univ Lyon, Université de Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR 5308, Lyon
| | - Marc Vocanson
- CIRI, Centre International de Recherche en Infectiologie (Team Epidermal Immunity and Allergy), INSERM, U1111, Univ Lyon, Université de Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR 5308, Lyon
| | - Audrey Nosbaum
- CIRI, Centre International de Recherche en Infectiologie (Team Epidermal Immunity and Allergy), INSERM, U1111, Univ Lyon, Université de Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR 5308, Lyon
- Université de Lyon, Centre Hospitalier Lyon-Sud, Service d'Allergologie et d'Immunologie Clinique, Pierre-Benite, France
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10
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Scheinman PL, Vocanson M, Thyssen JP, Johansen JD, Nixon RL, Dear K, Botto NC, Morot J, Goldminz AM. Contact dermatitis. Nat Rev Dis Primers 2021; 7:38. [PMID: 34045488 DOI: 10.1038/s41572-021-00271-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/23/2021] [Indexed: 02/04/2023]
Abstract
Contact dermatitis (CD) is among the most common inflammatory dermatological conditions and includes allergic CD, photoallergic CD, irritant CD, photoirritant CD (also called phototoxic CD) and protein CD. Occupational CD can be of any type and is the most prevalent occupational skin disease. Each CD type is characterized by different immunological mechanisms and/or requisite exposures. Clinical manifestations of CD vary widely and multiple subtypes may occur simultaneously. The diagnosis relies on clinical presentation, thorough exposure assessment and evaluation with techniques such as patch testing and skin-prick testing. Management is based on patient education, avoidance strategies of specific substances, and topical treatments; in severe or recalcitrant cases, which can negatively affect the quality of life of patients, systemic medications may be needed.
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Affiliation(s)
- Pamela L Scheinman
- Department of Dermatology, Brigham and Women's Hospital, Boston, MA, USA
| | - Marc Vocanson
- CIRI - Centre International de Recherche en Infectiologie, INSERM, U1111; Univ Lyon; Université Claude Bernard Lyon 1; Ecole Normale Supérieure de Lyon; CNRS, UMR, 5308, Lyon, France
| | - Jacob P Thyssen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jeanne Duus Johansen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Rosemary L Nixon
- Skin Health Institute - Occupational Dermatology Research and Education Centre, Carlton, VIC, Australia
| | - Kate Dear
- Skin Health Institute - Occupational Dermatology Research and Education Centre, Carlton, VIC, Australia
| | - Nina C Botto
- Department of Dermatology, University of California, San Francisco, San Francisco, CA, USA
| | - Johanna Morot
- CIRI - Centre International de Recherche en Infectiologie, INSERM, U1111; Univ Lyon; Université Claude Bernard Lyon 1; Ecole Normale Supérieure de Lyon; CNRS, UMR, 5308, Lyon, France
| | - Ari M Goldminz
- Department of Dermatology, Brigham and Women's Hospital, Boston, MA, USA.
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11
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Saika A, Nagatake T, Hirata SI, Sawane K, Adachi J, Abe Y, Isoyama J, Morimoto S, Node E, Tiwari P, Hosomi K, Matsunaga A, Honda T, Tomonaga T, Arita M, Kabashima K, Kunisawa J. ω3 fatty acid metabolite, 12-hydroxyeicosapentaenoic acid, alleviates contact hypersensitivity by downregulation of CXCL1 and CXCL2 gene expression in keratinocytes via retinoid X receptor α. FASEB J 2021; 35:e21354. [PMID: 33749892 DOI: 10.1096/fj.202001687r] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 12/14/2020] [Accepted: 12/23/2020] [Indexed: 11/11/2022]
Abstract
ω3 fatty acids show potent bioactivities via conversion into lipid mediators; therefore, metabolism of dietary lipids is a critical determinant in the properties of ω3 fatty acids in the control of allergic inflammatory diseases. However, metabolic progression of ω3 fatty acids in the skin and their roles in the regulation of skin inflammation remains to be clarified. In this study, we found that 12-hydroxyeicosapentaenoic acid (12-HEPE), which is a 12-lipoxygenase metabolite of eicosapentaenoic acid, was the prominent metabolite accumulated in the skin of mice fed ω3 fatty acid-rich linseed oil. Consistently, the gene expression levels of Alox12 and Alox12b, which encode proteins involved in the generation of 12-HEPE, were much higher in the skin than in the other tissues (eg, gut). We also found that the topical application of 12-HEPE inhibited the inflammation associated with contact hypersensitivity by inhibiting neutrophil infiltration into the skin. In human keratinocytes in vitro, 12-HEPE inhibited the expression of two genes encoding neutrophil chemoattractants, CXCL1 and CXCL2, via retinoid X receptor α. Together, the present results demonstrate that the metabolic progression of dietary ω3 fatty acids differs in different organs, and identify 12-HEPE as the dominant ω3 fatty acid metabolite in the skin.
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Affiliation(s)
- Azusa Saika
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Takahiro Nagatake
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - So-Ichiro Hirata
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - Kento Sawane
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Nippon Flour Mills Co., Ltd, Innovation Center, Atsugi, Japan
| | - Jun Adachi
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, Osaka, Japan
| | - Yuichi Abe
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, Osaka, Japan.,Division of Molecular Diagnosis, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Junko Isoyama
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, Osaka, Japan
| | - Sakiko Morimoto
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - Eri Node
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - Prabha Tiwari
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - Ayu Matsunaga
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan.,Department of Food and Life Science, School of Life and Environmental Science, Azabu University, Sagamihara, Japan
| | - Tetsuya Honda
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Dermatology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Takeshi Tomonaga
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, Osaka, Japan
| | - Makoto Arita
- Division of Physiological Chemistry and Metabolism, Faculty of Pharmacy, Keio University, Tokyo, Japan.,Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Department of Microbiology and Immunology, Kobe University Graduate School of Medicine, Kobe, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Graduate School of Medicine, Graduate School of Dentistry, Osaka University, Suita, Japan
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12
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Palmer BC, DeLouise LA. Morphology-dependent titanium dioxide nanoparticle-induced keratinocyte toxicity and exacerbation of allergic contact dermatitis. ACTA ACUST UNITED AC 2020; 4. [PMID: 33163967 DOI: 10.24966/tcr-3735/100019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Titanium dioxide (TiO2) nanoparticles are commonly found in consumer products, such as sunscreens, and human dermal exposures are relatively high. Research suggests potential differences in the toxicity of anatase and rutile crystalline forms of TiO2. Additionally, transition metal dopants are frequently used to enhance physicochemical properties of TiO2, and the toxicity of these nanoparticles are not extensively studied. Therefore, this work examined the keratinocyte toxicity and in vivo skin allergy responses after treatment with 30 nm anatase, 30 nm rutile, or <100 nm Mn-doped TiO2 nanoparticles. After a 24-hour exposure, there were no differences in keratinocyte cytotoxicity; however, Mn-doped TiO2 nanoparticles induced significant in vitro ROS generation and in vivo skin swelling responses in a model of allergic contact dermatitis.
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Affiliation(s)
- Brian C Palmer
- Department of Environmental Medicine, University of Rochester Medical Center, New York, USA
| | - Lisa A DeLouise
- Department of Environmental Medicine, University of Rochester Medical Center, New York, USA.,Department of Biomedical Engineering, University of Rochester, Rochester, New York, USA.,Department of Dermatology, University of Rochester Medical Center, Rochester, New York, USA
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13
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Brites GS, Ferreira I, Sebastião AI, Silva A, Carrascal M, Neves BM, Cruz MT. Allergic contact dermatitis: From pathophysiology to development of new preventive strategies. Pharmacol Res 2020; 162:105282. [PMID: 33161140 DOI: 10.1016/j.phrs.2020.105282] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 11/25/2022]
Abstract
As the body's first line of defense, the skin is the organ most frequently exposed to chemicals present in personal hygiene products, household products, or materials used in the work environment. In this context, skin disorders account for more than 40 % of all occupational and work-related diseases, constituting a significant public health burden. Among skin disorders, allergic contact dermatitis (ACD) is the most prevalent occupational disease and the most common form of immunotoxicity in humans. ACD is a T-cell-mediated skin inflammation resulting from the priming and expansion of allergen-specific CD4+ and CD8+ T cells. The clinical condition is characterized by local skin rash, itchiness, redness, swelling, and lesions, being mainly diagnosed by the patch test. Upon ACD diagnosis, avoiding the exposure to the triggering allergen is the mainstay of treatment to prevent future flares. In cases where avoidance is not possible, the use of a standard of care interim treatments such as steroid creams or ointments, barrier creams, and moisturizers are strongly recommended to alleviate symptoms. In this review, we sought to provide the reader with an overview of the pathophysiology of ACD as well as the currently available pharmacological treatment options. Furthermore, a comprehensive outline of several preventive strategies is also provided.
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Affiliation(s)
- Gonçalo Sousa Brites
- Faculty of Pharmacy, University of Coimbra, Coimbra, 3000-548, Portugal; Center for Neuroscience and Cell Biology - CNC, University of Coimbra, Coimbra, 3004-504, Portugal
| | - Isabel Ferreira
- Faculty of Pharmacy, University of Coimbra, Coimbra, 3000-548, Portugal; Center for Neuroscience and Cell Biology - CNC, University of Coimbra, Coimbra, 3004-504, Portugal
| | | | - Ana Silva
- Center for Neuroscience and Cell Biology - CNC, University of Coimbra, Coimbra, 3004-504, Portugal
| | - Mylene Carrascal
- Center for Neuroscience and Cell Biology - CNC, University of Coimbra, Coimbra, 3004-504, Portugal; Tecnimede Group, Sintra, 2710-089, Portugal
| | - Bruno Miguel Neves
- Department of Medical Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Maria T Cruz
- Faculty of Pharmacy, University of Coimbra, Coimbra, 3000-548, Portugal; Center for Neuroscience and Cell Biology - CNC, University of Coimbra, Coimbra, 3004-504, Portugal.
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14
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Nishijo T, Nakayama K, Miyazawa M, Kuroda Y, Sakaguchi H. Differential susceptibility between skin and vaginal mucosa in sensitization phase of allergic contact dermatitis in mice. IMMUNITY INFLAMMATION AND DISEASE 2020; 8:629-637. [PMID: 32914939 PMCID: PMC7654400 DOI: 10.1002/iid3.351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/31/2020] [Accepted: 09/02/2020] [Indexed: 01/08/2023]
Abstract
Introduction Mechanisms underlying skin sensitization in allergic contact dermatitis have been actively studied using the murine contact hypersensitivity (CHS) model. However, much less is known about sensitization at the vaginal mucosa (VM). Methods We developed a CHS model with VM sensitization and epicutaneous elicitation at the ear. We then examined the proliferation activity of lymphocytes, the frequencies of T cells and the differentiation of hapten‐specific T cells in draining lymph nodes (dLNs) after sensitization. Results Hapten‐specific CHS responses to 2,4‐dinitrofluorobenzene (DNFB), 2,4,6‐trinitrochrolobenzene, and oxazolone assessed by ear swelling suggested that the VM would be an inductive site of CHS to haptens. In the comparisons of CHS responses to each of the three haptens examined, the lower responses in VM‐sensitized mice were observed than skin‐sensitized mice (e.g., DNFB‐induced responses, −56%; p < .001, at 48 h after challenge). Consistent with the CHS responses, the DNFB‐induced proliferation of cells in dLNs examined by 5‐bromo‐2ʹ‐deoxyuridine assay was lower (−62%; p < .001) in VM‐sensitized mice than skin‐sensitized mice. On the other hand, between skin and VM sensitization, no significant differences were observed in the frequencies of interferon‐γ‐producing CD4+ and CD8+ effector, and regulatory T cells in dLNs after sensitization. We also observed no significant differences with respect to differentiation of hapten‐specific T cells based on the examination of cytokine production from dLN cells stimulated in vitro with 2,4‐dinitrobenzene sulfonate. Conclusion These findings suggested that the lower T cell proliferation after VM sensitization is important for the lower CHS responses with VM sensitization than skin sensitization.
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Affiliation(s)
- Taku Nishijo
- Safety Science Research Laboratories, Kao Corporation, Ichikai, Haga, Tochigi, Japan
| | - Kanako Nakayama
- Safety Science Research Laboratories, Kao Corporation, Ichikai, Haga, Tochigi, Japan
| | - Masaaki Miyazawa
- Safety Science Research Laboratories, Kao Corporation, Ichikai, Haga, Tochigi, Japan
| | - Yasutaka Kuroda
- Safety Science Research Laboratories, Kao Corporation, Ichikai, Haga, Tochigi, Japan
| | - Hitoshi Sakaguchi
- Safety Science Research Laboratories, Kao Corporation, Ichikai, Haga, Tochigi, Japan
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15
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Piao CH, Fan YJ, Nguyen TV, Song CH, Jeong HJ, Chai OH. Effects of thermal therapy combined with blue light-emitting diode irradiation on trimellitic anhydride-induced acute contact hypersensitivity mouse model. J DERMATOL TREAT 2020; 33:1343-1350. [PMID: 32783679 DOI: 10.1080/09546634.2020.1809622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUD The biological effect of phototherapy, which involves using visible light for disease treatment, has attracted recent attention, especially in dermatological practice. Light-emitting diode (LED) irradiation increases dermal collagen level and reduces inflammation. It has been suggested that thermal therapy and LED irradiation can modulate inflammatory processes. However, little is known about the molecular mechanism of the anti-inflammatory effects of thermal therapy and LED irradiation. OBJECTIVE This study was to determine the anti-inflammatory effect of thermal therapy combined with LED irradiation on trimellitic anhydride (TMA)-induced acute contact hypersensitivity (CHS) mouse model. METHODS Twenty-four BALB/c mice were randomly divided into the following groups: Vehicle group, TMA group, TMA + alternating thermal therapy group (Alternating group), and TMA + alternating + LED group (LED group). Ear swelling was measured based on the thickness of ear before and after each TMA challenge. Vascular permeability was evaluated by the extravasation of Evans blue dye. Serum IgE level, Th1/Th2/Th17 cytokines, and related transcription factors were measured using ELISA kits, and histological examination was illustrated in ear tissue. RESULTS The LED group showed reduction in ear swelling response, vascular permeability, serum IgE levels, Th2/Th17 cytokine levels, and inflammatory cell infiltration. Moreover, the LED group showed increased Th1 cytokine levels. CONCLUSIONS These results indicate that thermal therapy combined with LED irradiation alleviated TMA-induced acute CHS in the mouse model. Thermal therapy and phototherapy should be considered as a novel therapeutic tool for the treatment of skin inflammation.
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Affiliation(s)
- Chun Hua Piao
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Yan Jing Fan
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Thi Van Nguyen
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Chang Ho Song
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea.,Institute for Medical Sciences, Jeonbuk National University, Jeonju, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Research Institute of Clinical Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea.,Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Ok Hee Chai
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea.,Institute for Medical Sciences, Jeonbuk National University, Jeonju, Republic of Korea.,Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Republic of Korea
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16
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Hequet O, Nosbaum A, Guironnet-Paquet A, Blasco E, Nicolas-Virelizier E, Griffith TS, Rigal D, Cognasse F, Nicolas JF, Vocanson M. CD8 + T cells mediate ultraviolet A-induced immunomodulation in a model of extracorporeal photochemotherapy. Eur J Immunol 2020; 50:725-735. [PMID: 32012249 DOI: 10.1002/eji.201948318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/19/2019] [Accepted: 01/30/2020] [Indexed: 12/15/2022]
Abstract
Extracorporeal photochemotherapy (ECP) that takes advantage of the immunomodulatory effects of UV light has been extensively used for many years for the treatment of several T cell-mediated diseases, including graft-versus-host disease (GvHD) and systemic scleroderma. Immune mechanisms that lead to the establishment of T cell tolerance in ECP-treated patients remain poorly known. In this study, we have tested the effect of UV/psoralen-treated BM-derived dendritic cells, referred to as ECP-BMDCs on the outcome of an antigen-specific T cell-mediated reaction, that is, contact hypersensitivity (CHS), which is mediated by CD8+ effector T cells (CD8+ Teff ). The intravenous (i.v.) injection of antigen-pulsed ECP-BMDCs in recipient C57BL/6 mice induced specific CD8+ T cells endowed with immunomodulatory properties (referred to as CD8+ TECP ), which prevented the priming of CD8+ Teff and the development of CHS, independently of conventional CD4+ regulatory T cells. CD8+ TECP mediated tolerance by inhibiting the migration and functions of skin DC and subsequently the priming of CD8+ Teff . CD8+ TECP displayed none of the phenotypes of the usual CD8+ T regulatory cells described so far. Our results reveal an underestimated participation of CD8+ T cells to ECP-induced immunomodulation that could explain the therapeutic effects of ECP in T cell-mediated diseases.
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Affiliation(s)
- Olivier Hequet
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France.,Etablissement Français du Sang (EFS) Auvergne Rhône-Alpes, Apheresis Unit, Hôpital Lyon Sud, Pierre Bénite, France.,Etablissement Français du Sang (EFS) Auvergne Rhône-Alpes, Scientific Departements, Saint-Etienne, France
| | - Audrey Nosbaum
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France
| | - Aurélie Guironnet-Paquet
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France
| | - Elisabeth Blasco
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France
| | - Emmanuelle Nicolas-Virelizier
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France
| | - Thomas S Griffith
- Department of Urology, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Dominique Rigal
- Etablissement Français du Sang (EFS) Auvergne Rhône-Alpes, Scientific Departements, Saint-Etienne, France
| | - Fabrice Cognasse
- Etablissement Français du Sang (EFS) Auvergne Rhône-Alpes, Scientific Departements, Saint-Etienne, France.,GIMAP-EA 3064, Lyon University, Saint-Etienne, France
| | - Jean-François Nicolas
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France
| | - Marc Vocanson
- CIRI - Centre International de Recherche en Infectiologie, Team « Immunology of Skin Allergy and Vaccination », Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon University, F-69007, Lyon, France
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17
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Sil P, Suwanpradid J, Muse G, Gruzdev A, Liu L, Corcoran DL, Willson CJ, Janardhan K, Grimm S, Myers P, Degraff LM, MacLeod AS, Martinez J. Noncanonical autophagy in dermal dendritic cells mediates immunosuppressive effects of UV exposure. J Allergy Clin Immunol 2019; 145:1389-1405. [PMID: 31837371 DOI: 10.1016/j.jaci.2019.11.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/10/2019] [Accepted: 11/05/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Control of the inflammatory response is critical to maintaining homeostasis, and failure to do so contributes to the burden of chronic inflammation associated with several disease states. The mechanisms that underlie immunosuppression, however, remain largely unknown. Although defects in autophagy machinery have been associated with inflammatory pathologic conditions, we now appreciate that autophagic components participate in noncanonical pathways distinct from classical autophagy. We have previously demonstrated that LC3-associated phagocytosis (LAP), a noncanonical autophagic process dependent on Rubicon (rubicon autophagy regulator [RUBCN]), contributes to immunosuppression. OBJECTIVE We used Rubcn-/- mice to examine the role of the LAP pathway in mediating the UV-induced immunotolerant program in a model of contact hypersensitivity (CHS). METHODS Flow cytometry and transcriptional analysis were used to measure immune cell infiltration and activation in the skin of Rubcn+/+ and Rubcn-/- mice during the CHS response. RESULTS Here, we demonstrate that LAP is required for UV-induced immunosuppression and that UV exposure induces a broadly anti-inflammatory transcriptional program dependent on Rubicon. Rubcn-/- mice are resistant to UV-induced immunosuppression and instead display exaggerated inflammation in a model of CHS. Specifically, RUBCN deficiency in CD301b+ dermal dendritic cells results in their increased antigen presentation capacity and subsequent hyperactivation of the CD8+ T-cell response. CONCLUSIONS LAP functions to limit the immune response and is critical in maintaining the balance between homeostasis and inflammation.
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Affiliation(s)
- Payel Sil
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | | | - Ginger Muse
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Artiom Gruzdev
- Knockout Mouse Core Laboratory, Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Liwen Liu
- Molecular Genomics Core Laboratory, Signal Transduction Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - David L Corcoran
- Duke Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC
| | | | | | - Sara Grimm
- Division of Intramural Research, Research Triangle Park, NC
| | - Page Myers
- Comparative Medicine Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Laura Miller Degraff
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Amanda S MacLeod
- Department of Dermatology, Duke University, Durham, NC; Department of Immunology, Duke University, Durham, NC; Department of Molecular Genetics and Microbiology, Duke University, Durham, NC
| | - Jennifer Martinez
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC.
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18
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Kim BH, Lee WJ, Sanjel B, Cho K, Son YK, Park HY, Kim SY, Shim WS. Extracts of the leaves of Pyrus ussuriensis Maxim. Alleviate itch sensation via TSLP-dependent manner in mouse models of atopic dermatitis. Physiol Behav 2019; 210:112624. [PMID: 31325512 DOI: 10.1016/j.physbeh.2019.112624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/09/2019] [Accepted: 07/16/2019] [Indexed: 10/26/2022]
Abstract
Pyrus ussuriensis Maxim. commonly known as "Sandolbae" in Korean is a pear tree widely distributed across East Asia. Recent studies indicate that P. ussuriensis Maxim. leaves (PUL) have antipruritic effects. This study aimed to determine the effects of PUL extract and its fractions in decreasing the itch sensation and skin lesions in two distinct animal models of atopic dermatitis (AD) induced by dinitrofluorobenzene (DNFB) or house dust mite (HDM). Our results showed that the total ethanol extract of PUL decreased the scratching behavior in mice with DNFB- and HDM-induced AD. Moreover, the ethyl acetate fraction of PUL significantly improved the overall condition of the mice with AD induced by HDM. Further, we used HEK293T cells that express receptors and ion channels for thymic stromal lymphopoietin (TSLP), a potent pruritogen for AD, to determine the mechanisms underlying the antipruritic effects of PUL extract/fractions. Specific subfractions of the PUL strongly inhibited the increase in calcium levels induced by TSLP. In addition, the specific subfraction of PUL inhibited the TSLP-induced increase in calcium levels in cultured mouse dorsal root ganglia neurons. Thus, our results showed that the PUL extract could be effective for alleviating pruritus, and the antipruritic effects were exerted probably via the inhibition of the TSLP pathway in peripheral sensory neurons governing the itch sensation in AD.
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Affiliation(s)
- Bo Hyun Kim
- College of Pharmacy, Gachon University, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea
| | - Wook-Joo Lee
- College of Pharmacy, Gachon University, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea
| | - Babina Sanjel
- College of Pharmacy, Gachon University, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea
| | - Kyohee Cho
- College of Pharmacy, Gachon University, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea
| | - Youn Kyoung Son
- National Institute of Biological Resources, Environmental Research Complex, Incheon, Republic of Korea
| | - Hye Yoon Park
- National Institute of Biological Resources, Environmental Research Complex, Incheon, Republic of Korea
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea
| | - Won-Sik Shim
- College of Pharmacy, Gachon University, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambakmoero 191, Yeonsu-gu, Incheon, Republic of Korea.
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19
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Shi HJ, Song HB, Gao Q, Si JW, Zou Q. Combination of oxymatrine and diammonium glycyrrhizinate significantly mitigates mice allergic contact dermatitis induced by dinitrofluorobenzene. Exp Biol Med (Maywood) 2019; 244:1111-1119. [PMID: 31342769 DOI: 10.1177/1535370219864895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
This study investigated the safety and effect of oxymatrine (OMT) and/or diammonium glycyrrhizinate (DG) on allergic contact dermatitis (ACD) induced by 1-fluoro-2,4-dinitrofluorobenzene (DNFB) in ICR mice. Mice were topically smeared with vehicle (control) or DNFB on their ear and skin to induce ACD. The mice were randomized and injected with saline as the model, treated intraperitoneally with dexamethasone (DEX), 45 or 90 mg·kg−1 OMT and/or DG daily beginning one day post the first smearing for two weeks. The body weights, the severity of ear and skin inflammation, the levels of serum IgE, IL-4, and IFNγ, creatinine and urea as well as plasma sodium and potassium in individual mice were measured. In comparison with the control group, the model group did not change the body weights, but developed severe skin and ear inflammation with increased ear thickness, accompanied by many inflammatory infiltrates in the lesions and high levels of serum IgE, IL-4, and IFNγ. Combination of OMT and DG prevented the OMT- or DG-altered body weights in mice. While treatment with either OMT or DG moderately reduced the skin and ear inflammation, their thickness and inflammatory infiltrates, combination of OMT and DG further significantly increased their anti-inflammatory effects in mice. A similar pattern of inhibitory effect on the levels of serum IgE, IL-4, and IFNγ was observed in the different groups of mice. Combination of OMT and DG also prevented the OMT-, DG-, or DEX-altered plasma sodium or potassium levels in mice. Therefore, combination of OMT and DG significantly increased anti-inflammatory effects on ACD induced by DNFB in mice and attenuated DG- or OMT-related adverse effects. Impact statement Diammonium glycyrrhizinate (DG) and oxymatrine (OMT) have similar anti-inflammatory, anti-allergic, anti-tumor, immunomodulatory, and other pharmacological properties. Our previous study has shown that when DG and OMT are combined, DG can attenuate both high-dose (347.44 mg·kg−1) and regular-dose (90 mg·kg−1) OMT-induced mortality and adverse effects (such as body weight loss and hyponatremia). Furthermore, OMT can similarly attenuate the adverse effects (such as body weight gain, hypernatremia, and hypokalemia) induced by regular dose (90 mg·kg−1) of DG. Accordingly, we tested whether combination of OMT and DG would increase anti-inflammatory activities and reduce their adverse effect in a mouse model of allergic contact dermatitis (ACD) induced by 1-fluoro-2,4-dinitrofluorobenzene (DNFB). Our findings indicated that combination of OMT and DG significantly increased anti-inflammatory effects on ACD induced by DNFB in ICR mice and attenuated adverse effects of DG or OMT alone.
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Affiliation(s)
- Hui-Juan Shi
- Department of Dermatovenereology, Ningxia Medical University General Hospital, Yinchuan 750004, China
| | - Hong-Bin Song
- Department of Dermatology, Chinese PLA General Hospital, Beijing 100853, China
| | - Qiong Gao
- Department of Dermatovenereology, Ningxia Medical University General Hospital, Yinchuan 750004, China
| | - Jia-Wei Si
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - Qian Zou
- Department of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
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20
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Guo L, Lai P, Wang Y, Huang T, Chen X, Luo C, Geng S, Huang X, Wu S, Ling W, Huang L, Du X, Weng J. Extracellular vesicles from mesenchymal stem cells prevent contact hypersensitivity through the suppression of Tc1 and Th1 cells and expansion of regulatory T cells. Int Immunopharmacol 2019; 74:105663. [PMID: 31200338 DOI: 10.1016/j.intimp.2019.05.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/05/2019] [Accepted: 05/24/2019] [Indexed: 12/20/2022]
Abstract
Extracellular vesicles (EVs) secreted by mesenchymal stem cells (MSC-EVs) are taken more seriously as immunomodulatory and anti-inflammatory agents. We studied the therapeutic effects of MSC-EVs on allergic contact dermatitis (ACD), a typical T cell-mediated disorder. A contact hypersensitivity (CHS) mouse model for ACD was established and treated by intravenous MSC-EVs injection. We found that human umbilical cord MSC-EVs could significantly prevent the pathology of CHS, including reduced ear swelling and leukocyte infiltration. Injection of MSC-EVs significantly inhibited CD8+IFN-γ+ cytotoxic T (Tc1) cells and CD4+IFN-γ+ type 1 helper T (Th1) cells, and reduced the level of pro-inflammatory Tumor Necrosis Factor-alpha (TNF-α) and interferon gamma (IFN-γ), and induced CD4+CD25+Foxp3+ regulatory T cells (Tregs) and the level of anti-inflammatory IL-10. In vitro, MSC-EVs also suppressed Tc1 and Th1 cells and induced Tregs and the related cytokines, further indicating the immune regulatory role of MSC-EVs. Interestingly, PKH26-labeled MSC-EVs were found to be directly internalized by CD3+ T cells, resulting in reduced signal transducer and activator of transcription 1 (STAT1) protein levels in vitro. In summary, MSC-EVs can prevent the onset of CHS by inhibiting Tc1 and Th1 immune responses and inducing the Tregs phenotype in vivo and in vitro. The mechanism by which MSC-EVs influence CD3+ T cells might partially involve targeting STAT1 in vitro. Therefore, MSC-EVs are ideal candidates for cell-free immunomodulatory therapy for T cell-mediated diseases such as ACD.
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Affiliation(s)
- Liyan Guo
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China; South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Peilong Lai
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Yulian Wang
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Tian Huang
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China; South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Xiaomei Chen
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Chenwei Luo
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Suxia Geng
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Xin Huang
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Suijing Wu
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Wei Ling
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Lisi Huang
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China
| | - Xin Du
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China; South China University of Technology, Guangzhou, Guangdong 510006, PR China.
| | - Jianyu Weng
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China; Guangdong Provincial Geriatrics Institute, Guangzhou, Guangdong 510080, PR China; South China University of Technology, Guangzhou, Guangdong 510006, PR China.
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21
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Palmer BC, Jatana S, Phelan-Dickinson SJ, DeLouise LA. Amorphous silicon dioxide nanoparticles modulate immune responses in a model of allergic contact dermatitis. Sci Rep 2019; 9:5085. [PMID: 30911099 PMCID: PMC6434075 DOI: 10.1038/s41598-019-41493-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 02/26/2019] [Indexed: 01/11/2023] Open
Abstract
Amorphous silicon dioxide nanoparticles (SiNPs) are ubiquitous, and they are currently found in cosmetics, drugs, and foods. Biomedical research is also focused on using these nanoparticles as drug delivery and bio-sensing platforms. Due to the high potential for skin exposure to SiNPs, research into the effect of topical exposure on both healthy and inflammatory skin models is warranted. While we observe only minimal effects of SiNPs on healthy mouse skin, there is an immunomodulatory effect of these NPs in a model of allergic contact dermatitis. The effect appears to be mediated partly by keratinocytes and results in decreases in epidermal hyperplasia, inflammatory cytokine release, immune cell infiltration, and a subsequent reduction in skin swelling. Additional research is required to further our mechanistic understanding and to validate the extent of this immunomodulatory effect in human subjects in order to assess the potential prophylactic use of SiNPs for treating allergic skin conditions.
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Affiliation(s)
- Brian C. Palmer
- 0000 0004 1936 9166grid.412750.5Department of Environmental Medicine, University of Rochester Medical Center, New York, USA
| | - Samreen Jatana
- 0000 0004 1936 9174grid.16416.34Department of Biomedical Engineering, University of Rochester, Rochester, New York USA
| | - Sarah J. Phelan-Dickinson
- 0000 0004 1936 9166grid.412750.5Department of Environmental Medicine, University of Rochester Medical Center, New York, USA
| | - Lisa A. DeLouise
- 0000 0004 1936 9166grid.412750.5Department of Environmental Medicine, University of Rochester Medical Center, New York, USA ,0000 0004 1936 9174grid.16416.34Department of Biomedical Engineering, University of Rochester, Rochester, New York USA ,0000 0004 1936 9166grid.412750.5Department of Dermatology, University of Rochester Medical Center, Rochester, New York USA
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22
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Watson AR, Dai H, Diaz-Perez JA, Killeen ME, Mathers AR, Thomson AW. mTORC2 deficiency in cutaneous dendritic cells potentiates CD8 + effector T cell responses and accelerates skin graft rejection. Am J Transplant 2019; 19:646-661. [PMID: 30129283 PMCID: PMC6384165 DOI: 10.1111/ajt.15083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 07/27/2018] [Accepted: 08/14/2018] [Indexed: 01/25/2023]
Abstract
Mechanistic target of rapamycin (mTOR) complex (mTORC)1 and mTORC2 regulate the differentiation and function of immune cells. While inhibition of mTORC1 antagonizes dendritic cell (DC) differentiation and suppresses graft rejection, the role of mTORC2 in DCs in determining host responses to transplanted tissue remains undefined. Using a mouse model in which mTORC2 was deleted specifically in CD11c+ DCs (TORC2DC-/- ), we show that the transplant of minor histocompatibility Ag (HY)-mismatched skin grafts from TORC2DC-/- donors into wild-type recipients results in accelerated rejection characterized by enhanced CD8+ T cell responses in the graft and regional lymphoid tissue [Correction added on January 9, 2019, after first online publication: in the previous sentence, major was changed to minor]. Similar enhancement of CD8+ effector T cell responses was observed in MHC-mismatched recipients of TORC2DC-/- grafts. Augmented CD8+ T cell responses were also observed in a delayed-type hypersensitivity model in which mTORC2 was absent in cutaneous DCs. These elevated responses could be ascribed to an increased T cell stimulatory phenotype of TORC2DC-/- and not to enhanced lymph node homing of the cells. In contrast, rejection of ovalbumin transgenic skin grafts in TORC2DC-/- recipients was unaffected. These findings suggest that mTORC2 in skin DCs restrains effector CD8+ T cell responses and have implications for understanding of the influence of mTOR inhibitors that target mTORC2 in transplant.
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Affiliation(s)
- Alicia R. Watson
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Helong Dai
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Urological Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Julio A. Diaz-Perez
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Meaghan E. Killeen
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Alicia R. Mathers
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Angus W. Thomson
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Correspondence: Angus W. Thomson, PhD, DSc, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, 200 Lothrop Street, BST W1540, Pittsburgh, PA 15261, , (412) 624-6392
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23
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Nakasone Y, Kumagai K, Matsubara R, Shigematsu H, Kitaura K, Suzuki S, Satoh M, Hamada Y, Suzuki R. Characterization of T cell receptors in a novel murine model of nickel-induced intraoral metal contact allergy. PLoS One 2018; 13:e0209248. [PMID: 30557354 PMCID: PMC6296741 DOI: 10.1371/journal.pone.0209248] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 12/03/2018] [Indexed: 11/30/2022] Open
Abstract
Nickel is a component of several alloy types that are widely used in our environment, including several dental alloy types that cause intraoral metal contact allergy. However, metal-specific immune responses in the oral mucosa have not been elucidated because a suitable animal model has not been established. In this study, we established a novel murine model of nickel-induced intraoral metal contact allergy and aimed to elucidate the immune response in terms of T-cell receptor repertoire and cytokine profiles in inflamed oral mucosa. The intraoral metal contact allergy model was induced by two sensitizations of nickel plus lipopolysaccharide solution into the postauricular skin followed by a single nickel challenge of the buccal mucosa. Cytokine expression profiles and T-cell phenotypes were determined by quantitative polymerase chain reaction. T cells accumulated in the cervical lymph nodes and inflamed oral mucosa were characterized by analyzing their T-cell receptor α- and β-chain repertoires, and the nucleotide sequences of complementary determining region 3. Significant swelling and pathological features were histologically evident at 1 day after challenge in mice with nickel allergy. At 1 day after the challenge, CD8-positive T cells producing high levels of T helper 1 type cytokines had accumulated in the allergic oral mucosa. At 7 days after the challenge, excessive nickel allergy in the oral mucosa was suppressed by regulatory T cells. Characterization of the T-cell receptor repertoire in nickel allergic mice revealed the presence of natural killer T cells and T cells bearing Trav6-6-Traj57 at 1 day after the challenge. Our murine model of nickel-induced intraoral metal contact allergy showed that natural killer T cells and T cells bearing Trav6-6-Traj57 might be involved in the immune responses of nickel-induced intraoral metal contact allergy.
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Affiliation(s)
- Yasunari Nakasone
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Kenichi Kumagai
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Center of Oral and Maxillofacial Implantology, Tsurumi University Dental Hospital, Yokohama Japan
- * E-mail: (RS); (KKu)
| | - Ryota Matsubara
- Department of Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, Yokohama General Hospital, Yokohama, Japan
| | - Hiroaki Shigematsu
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Center of Oral and Maxillofacial Implantology, Tsurumi University Dental Hospital, Yokohama Japan
| | - Kazutaka Kitaura
- Department of Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Satsuki Suzuki
- Section of Biological Sciences, Research Center for Odontology, The Nippon Dental University School of Life Dentistry at Tokyo, Tokyo, Japan
| | - Masashi Satoh
- Department of Immunology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Yoshiki Hamada
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Center of Oral and Maxillofacial Implantology, Tsurumi University Dental Hospital, Yokohama Japan
| | - Ryuji Suzuki
- Department of Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- * E-mail: (RS); (KKu)
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24
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Hughes JDM, Pratt MD. Allergic Contact Dermatitis and Autoeczematization to Proctosedyl® Cream and Proctomyxin® Cream. Case Rep Dermatol 2018; 10:238-246. [PMID: 30519170 PMCID: PMC6276736 DOI: 10.1159/000486475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 12/18/2017] [Indexed: 11/19/2022] Open
Abstract
Proctosedyl® and Proctomyxin® are two commonly prescribed hemorrhoid therapies. Their topical application to the perianal region may be complicated by a local allergic contact dermatitis and subsequent autoeczematization reaction. We present three cases of an autoeczematization (ID) reaction to varying topical allergens found in Proctosedyl®/Proctomyxin®. It is our recommendation that physician and patient education, avoidance of allergens (or cross-reactants), and appropriate choice of topical corticosteroid is important in preventing and avoiding flares.
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Affiliation(s)
- J D Matthew Hughes
- Department of Dermatology, Division of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Melanie D Pratt
- Department of Dermatology, University of Ottawa, Ottawa, Ontario, Canada
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25
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Baeck M, Herman A, de Montjoye L, Hendrickx E, Chéou P, Cochez PM, Dumoutier L. Increased expression of interleukin-9 in patients with allergic contact dermatitis caused byp-phenylenediamine. Contact Dermatitis 2018; 79:346-355. [DOI: 10.1111/cod.13123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Marie Baeck
- Department of Dermatology; Cliniques universitaires Saint-Luc; Brussels Belgium
- Institut de Recherche Expérimentale et Clinique (IREC Pôle Pneumologie, ORL, Dermatologie), Université catholique de Louvain; Brussels Belgium
| | - Anne Herman
- Department of Dermatology; Cliniques universitaires Saint-Luc; Brussels Belgium
- Institut de Recherche Expérimentale et Clinique (IREC Pôle Pneumologie, ORL, Dermatologie), Université catholique de Louvain; Brussels Belgium
| | - Laurence de Montjoye
- Department of Dermatology; Cliniques universitaires Saint-Luc; Brussels Belgium
- Institut de Recherche Expérimentale et Clinique (IREC Pôle Pneumologie, ORL, Dermatologie), Université catholique de Louvain; Brussels Belgium
| | - Emilie Hendrickx
- de Duve Institute, MEXP Unit, Université catholique de Louvain; Brussels Belgium
| | - Paméla Chéou
- de Duve Institute, MEXP Unit, Université catholique de Louvain; Brussels Belgium
| | - Perrine M. Cochez
- de Duve Institute, MEXP Unit, Université catholique de Louvain; Brussels Belgium
| | - Laure Dumoutier
- de Duve Institute, MEXP Unit, Université catholique de Louvain; Brussels Belgium
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26
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Villani AP, Gamradt P, Nosbaum A, Laoubi L, Jullien D, Nicolas JF, Vocanson M. Immune-mediated skin diseases induced by chemicals and drugs. CURRENT OPINION IN TOXICOLOGY 2018. [DOI: 10.1016/j.cotox.2018.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Legrand JMD, Roy E, Baz B, Mukhopadhyay P, Wong HY, Ram R, Morahan G, Walker G, Khosrotehrani K. Genetic variation in the mitogen-activated protein kinase/extracellular signal-regulated kinase pathway affects contact hypersensitivity responses. J Allergy Clin Immunol 2018; 142:981-984.e7. [PMID: 29753814 DOI: 10.1016/j.jaci.2018.04.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 01/17/2018] [Accepted: 04/20/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Julien M D Legrand
- UQ Diamantina Institute, Translational Research Institute, University of Queensland, Brisbane, Australia
| | - Edwige Roy
- UQ Diamantina Institute, Translational Research Institute, University of Queensland, Brisbane, Australia
| | - Batoul Baz
- UQ Diamantina Institute, Translational Research Institute, University of Queensland, Brisbane, Australia
| | | | - Ho Yi Wong
- UQ Diamantina Institute, Translational Research Institute, University of Queensland, Brisbane, Australia
| | - Ramesh Ram
- Centre for Diabetes Research, Harry Perkins Institute of Medical Research, Perth, Australia
| | - Grant Morahan
- Centre for Diabetes Research, Harry Perkins Institute of Medical Research, Perth, Australia
| | - Graeme Walker
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Kiarash Khosrotehrani
- UQ Diamantina Institute, Translational Research Institute, University of Queensland, Brisbane, Australia.
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28
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The Unique Molecular Signatures of Contact Dermatitis and Implications for Treatment. Clin Rev Allergy Immunol 2018; 56:1-8. [DOI: 10.1007/s12016-018-8685-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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29
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King BJ, Lehman JS, Macon WR, Sciallis GF. Red tattoo-related mycosis fungoides-like CD8+ pseudolymphoma. J Cutan Pathol 2017; 45:226-228. [DOI: 10.1111/cup.13089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/28/2017] [Accepted: 11/24/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Brian J. King
- Department of Dermatology; Mayo Clinic; Rochester Minnesota
| | - Julia S. Lehman
- Department of Dermatology; Mayo Clinic; Rochester Minnesota
- Department of Pathology; Mayo Clinic; Rochester Minnesota
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30
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Malik K, Ungar B, Garcet S, Dutt R, Dickstein D, Zheng X, Xu H, Estrada YD, Suárez-Fariñas M, Shemer A, Krueger JG, Guttman-Yassky E. Dust mite induces multiple polar T cell axes in human skin. Clin Exp Allergy 2017; 47:1648-1660. [DOI: 10.1111/cea.13040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/11/2017] [Accepted: 08/18/2017] [Indexed: 12/18/2022]
Affiliation(s)
- K. Malik
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
| | - B. Ungar
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
| | - S. Garcet
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
| | - R. Dutt
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
| | - D. Dickstein
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
| | - X. Zheng
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
| | - H. Xu
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
| | - Y. D. Estrada
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
| | - M. Suárez-Fariñas
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
- Department of Population Health Science and Policy; Icahn School of Medicine at Mount Sinai; New York NY USA
- Department of Genetics and Genomics Science; Icahn School of Medicine at Mount Sinai; New York NY USA
- Icahn Institute for Genomics and Multiscale Biology; Icahn School of Medicine at Mount Sinai; New York NY USA
| | - A. Shemer
- The Department of Dermatology; Tel-Hashomer; Tel-Aviv Israel
| | - J. G. Krueger
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
| | - E. Guttman-Yassky
- Department of Dermatology; Icahn School of Medicine at Mount Sinai; New York NY USA
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
- Department of Genetics and Genomics Science; Icahn School of Medicine at Mount Sinai; New York NY USA
- The Immunology Institute; Icahn School of Medicine at Mount Sinai; New York NY USA
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31
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Kwast L, Aida T, Fiechter D, Kruijssen L, Bleumink R, Boon L, Ludwig I, Pieters R. Immune responses induced by diclofenac or carbamazepine in an oral exposure model using TNP-Ficoll as reporter antigen. J Immunotoxicol 2017; 13:918-926. [PMID: 27967303 DOI: 10.1080/1547691x.2016.1247929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Immune-mediated drug hypersensitivity reactions (IDHR) may result from immuno-sensitization to a drug-induced neo-antigen. They rarely occur in patients and are usually not predicted preclinically using standard toxicity studies. To assess the potential of a drug to induce T-cell sensitization, trinitrophenyl (TNP)-Ficoll was used here as a bystander antigen in animal experiments. TNP-Ficoll will only elicit TNP-specific IgG antibodies in the presence of non-cognate T-cell help. Therefore, the presence of TNP-specific IgG antibodies after co-injection of drug and TNP-Ficoll was indicative of T-cell sensitization potential. This TNP-Ficoll-approach was used here to characterize T-cell help induced by oral exposure to diclofenac (DF) or carbamazepine (CMZ). DF or CMZ was administered orally to BALB/c mice and after 3 w, the mice were challenged in a hind paw with TNP-Ficoll and a dose of the drug that by itself does only elicit a sub-optimal popliteal lymph node assay (PLNA) response. T-cell-dependent responses were then evaluated in paw-draining popliteal lymph nodes (PLN). Also, shortly after oral exposure, mesenteric lymph nodes (MLN) were excised for evaluation of local responses. Both drugs were able to increase PLN cellularity and TNP-specific IgG1 production after challenge. Both DF and CMZ stimulated CD4+ and CD8+ T-cells and caused shifts of the subsets toward an effector phenotype. DF, but not CMZ, appeared to stimulate interferon (IFN)-γ production. Remarkably, depletion of CD8+, but not CD4+, T-cells reduced TNP-specific IgG1 production, and was more pronounced in CMZ- than in DF-exposed animals. Local responses in the MLN caused by DF or CMZ also showed shifts of CD4+ and CD8+-cells toward a memory phenotype. Together, the data indicate that oral exposure to CMZ and DF differentially induced neo-antigen-specific T-cell reactions in the PLNA.
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Affiliation(s)
- Lydia Kwast
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands.,b TI Pharma, Leiden , The Netherlands
| | - Tetsuo Aida
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands.,c Medicinal Safety Research Laboratories, Daiichi Sankyo Co. Ltd , Tokyo , Japan
| | - Daniëlle Fiechter
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands.,b TI Pharma, Leiden , The Netherlands
| | - Laura Kruijssen
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands
| | - Rob Bleumink
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands
| | | | - Irene Ludwig
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands.,b TI Pharma, Leiden , The Netherlands.,e Department of Infectious Diseases and Immunology , Utrecht University , Utrecht , The Netherlands
| | - Raymond Pieters
- a Division of Toxicology , Institute for Risk Assessment Sciences (IRAS), Utrecht University , Utrecht , The Netherlands
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Hirunwidchayarat W, Furusawa E, Kang S, Ohno T, Takeuchi S, Rungsiyanont S, Azuma M. Site-specific regulation of oral mucosa-recruiting CD8+ T cells in a mouse contact allergy model. Biochem Biophys Res Commun 2017; 490:1294-1300. [DOI: 10.1016/j.bbrc.2017.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 07/03/2017] [Indexed: 11/30/2022]
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Bonefeld CM, Geisler C, Gimenéz-Arnau E, Lepoittevin JP, Uter W, Johansen JD. Immunological, chemical and clinical aspects of exposure to mixtures of contact allergens. Contact Dermatitis 2017; 77:133-142. [DOI: 10.1111/cod.12847] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/18/2017] [Accepted: 05/20/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Charlotte M. Bonefeld
- Faculty of Health and Medical Sciences, Department of Immunology and Microbiology; University of Copenhagen; 2200 Copenhagen Denmark
| | - Carsten Geisler
- Faculty of Health and Medical Sciences, Department of Immunology and Microbiology; University of Copenhagen; 2200 Copenhagen Denmark
| | - Elena Gimenéz-Arnau
- Laboratory of Dermatochemistry, Institute of Chemistry-CNRS UMR 7177; University of Strasbourg; 67081 Strasbourg France
| | - Jean-Pierre Lepoittevin
- Laboratory of Dermatochemistry, Institute of Chemistry-CNRS UMR 7177; University of Strasbourg; 67081 Strasbourg France
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology; University of Erlangen/Nürnberg; 91054 Erlangen Germany
| | - Jeanne D. Johansen
- Department of Dermatology-Allergy, National Allergy Research Centre; Copenhagen University Hospital Gentofte; 2900 Hellerup Denmark
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Hamada T, Aoyama Y, Shirafuji Y, Iwatsuki K. Phenotypic analysis of circulating T-cell subset and its association with burden of skin disease in patients with chronic actinic dermatitis: a hematologic and clinicopathologic study of 20 subjects. Int J Dermatol 2017; 56:540-546. [DOI: 10.1111/ijd.13486] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/25/2016] [Accepted: 09/12/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Toshihisa Hamada
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - Yumi Aoyama
- Department of Dermatology; Kurashiki Medical Center; Kurashiki Japan
| | | | - Keiji Iwatsuki
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
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Human leukocyte antigen and idiosyncratic adverse drug reactions. Drug Metab Pharmacokinet 2017; 32:21-30. [DOI: 10.1016/j.dmpk.2016.11.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 12/17/2022]
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Roseotoxin B Improves Allergic Contact Dermatitis through a Unique Anti-Inflammatory Mechanism Involving Excessive Activation of Autophagy in Activated T Lymphocytes. J Invest Dermatol 2016; 136:1636-1646. [DOI: 10.1016/j.jid.2016.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 04/14/2016] [Accepted: 04/18/2016] [Indexed: 12/31/2022]
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El Beidaq A, Link CWM, Hofmann K, Frehse B, Hartmann K, Bieber K, Martin SF, Ludwig RJ, Manz RA. In Vivo Expansion of Endogenous Regulatory T Cell Populations Induces Long-Term Suppression of Contact Hypersensitivity. THE JOURNAL OF IMMUNOLOGY 2016; 197:1567-76. [PMID: 27439515 DOI: 10.4049/jimmunol.1600508] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/19/2016] [Indexed: 12/29/2022]
Abstract
Contact hypersensitivity (CHS) of murine skin serves as a model of allergic contact dermatitis. Hapten-specific CD8 T cells and neutrophils represent the major effector cells driving this inflammatory reaction whereas Foxp3(+) regulatory T cells (Tregs) control the severity of inflammation. However, whether in vivo expansion of endogenous Tregs can downregulate CHS-mediated inflammation remains to be elucidated. In this study, we addressed this issue by using injection of an IL-2/anti-IL-2 mAb JES6-1 complex (IL-2/JES6-1) as a means of Treg induction in 2,4,6-trinitrochlorobenzene-induced CHS. IL-2/JES6-1 injection before or after hapten sensitization led to a considerable reduction of skin inflammation, even when rechallenged up to 3 wk after the last treatment. Conversely, Treg depletion re-established the CHS response in IL-2/JES6-1-treated mice. IL-2/JES6-1 injection resulted in increased frequencies of natural and peripheral Tregs in spleen and draining lymph nodes (LNs), elevated IL-10 and TGF-β production by CD4 T cells, reduced CD86 expression by dendritic cells, and led to lower numbers of hapten-specific IFN-γ-producing CD8 T effector cells in LNs. Neutrophil and CD8 T cell infiltration was reduced in inflamed ear tissue, whereas CTLA-4(+)Foxp3(+) Treg frequencies were augmented. Adoptive transfer of LN cells of sensitized mice into recipients treated with IL-2/JES6-1 showed impaired CHS. Our results show that in vivo Treg expansion results in a prolonged CHS suppression, a sustained reduction of hapten-specific CD8 T cells, and a decrease in effector cell influx in inflamed tissue.
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Affiliation(s)
- Asmaa El Beidaq
- Institute for Systemic Inflammation Research, University of Lübeck, 23538 Lübeck, Germany
| | - Christopher W M Link
- Institute for Systemic Inflammation Research, University of Lübeck, 23538 Lübeck, Germany
| | - Katharina Hofmann
- Institute for Systemic Inflammation Research, University of Lübeck, 23538 Lübeck, Germany
| | - Britta Frehse
- Institute for Systemic Inflammation Research, University of Lübeck, 23538 Lübeck, Germany
| | - Karin Hartmann
- Department of Dermatology, University of Lübeck, 23538 Lübeck, Germany
| | - Katja Bieber
- Lübeck Institute of Experimental Dermatology, University of Lübeck, 23538 Lübeck, Germany; and
| | - Stefan F Martin
- Allergy Research Group, Department of Dermatology, Medical Center, University of Freiburg, 79104 Freiburg, Germany
| | - Ralf J Ludwig
- Department of Dermatology, University of Lübeck, 23538 Lübeck, Germany; Lübeck Institute of Experimental Dermatology, University of Lübeck, 23538 Lübeck, Germany; and
| | - Rudolf A Manz
- Institute for Systemic Inflammation Research, University of Lübeck, 23538 Lübeck, Germany;
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Besonderheiten von Haptenen und Allergenen bei Spättypreaktionen. ALLERGOLOGIE 2016. [DOI: 10.1007/978-3-642-37203-2_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Singleton H, Popple A, Gellatly N, Maxwell G, Williams J, Friedmann PS, Kimber I, Dearman RJ. Anti-hapten antibodies in response to skin sensitization. Contact Dermatitis 2015; 74:197-204. [PMID: 26560413 DOI: 10.1111/cod.12486] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/07/2015] [Accepted: 09/21/2015] [Indexed: 02/04/2023]
Abstract
Whereas T lymphocyte (T cell) activation is the key event in the acquisition of skin sensitization and subsequent elicitation of allergic contact dermatitis, the humoral component of immune responses to organic contact allergens has received little consideration. There is evidence that, in experimental animals, topical exposure to potent contact allergens is associated with B cell activation and proliferation, and hapten-specific antibody production. However, there is very limited evidence available for anti-hapten antibody responses being induced following topical exposure of humans to contact allergens. Nevertheless, it is important to appreciate that there are almost no negative studies in which evidence for antibody production as the result of skin sensitization has been sought and not found. That is, there is absence of evidence rather than evidence of absence. Furthermore, exposure to chemical respiratory allergens, in which the skin has been implicated as a potential route of sensitization, results in anti-hapten antibody responses. It is proposed that skin sensitization to contact allergens will normally be accompanied by antibody production. The phenomenon is worthy of investigation, as anti-hapten antibodies could potentially influence and/or regulate the induction of skin sensitization. Moreover, such antibodies may provide an informative correlate of the extent to which sensitization has been acquired.
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Affiliation(s)
- Helen Singleton
- Department of Toxicology, Faculty of Life Sciences, University of Manchester, Manchester, M13 9PT, UK
| | - Amy Popple
- Department of Toxicology, Faculty of Life Sciences, University of Manchester, Manchester, M13 9PT, UK
| | - Nichola Gellatly
- Unilever Safety and Environmental Assurance Centre, Colworth Science Park, Bedford, MK44 1LQ, UK
| | - Gavin Maxwell
- Unilever Safety and Environmental Assurance Centre, Colworth Science Park, Bedford, MK44 1LQ, UK
| | | | - Peter S Friedmann
- Division of Infection, Inflammation & Immunity, University of Southampton, Southampton, SO17 1BJ, UK
| | - Ian Kimber
- Department of Toxicology, Faculty of Life Sciences, University of Manchester, Manchester, M13 9PT, UK
| | - Rebecca J Dearman
- Department of Toxicology, Faculty of Life Sciences, University of Manchester, Manchester, M13 9PT, UK
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Nattrass R, Faulkner L, Vocanson M, Antoine DJ, Kipar A, Kenna G, Nicolas JF, Park BK, Naisbitt DJ. Activation of Flucloxacillin-Specific CD8+ T-Cells With the Potential to Promote Hepatocyte Cytotoxicity in a Mouse Model. Toxicol Sci 2015; 146:146-56. [DOI: 10.1093/toxsci/kfv077] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Popple A, Williams J, Maxwell G, Gellatly N, Dearman RJ, Kimber I. The lymphocyte transformation test in allergic contact dermatitis: New opportunities. J Immunotoxicol 2015; 13:84-91. [PMID: 25655136 DOI: 10.3109/1547691x.2015.1008656] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Allergic contact dermatitis (ACD) is driven by the activation and proliferation of allergen-specific memory T-lymphocytes and is currently diagnosed by patch testing with a selected panel of chemical allergens. The lymphocyte transformation test (LTT) can be used to monitor ex vivo T-lymphocyte responses to antigens, including contact allergens. The LTT is not viewed as being an alternative to patch testing, but it does seek to reflect experimentally skin sensitization to specific chemicals. The LTT is based on stimulation in vitro of antigen-driven T-lymphocyte proliferation. That is, exposure in culture of primed memory T-lymphocytes to the relevant antigen delivered in an appropriate configuration will provoke a secondary response that reflects the acquisition of skin sensitization. The technical aspects of this test and the utility of the approach for investigation of immune responses to contact allergens in humans are reviewed here, with particular emphasis on further development and refinement of the protocol. An important potential application is that it may provide a basis for characterizing those aspects of T-lymphocyte responses to contact allergens that have the greatest influence on skin sensitizing potency and this will be considered in some detail.
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Affiliation(s)
- Amy Popple
- a Faculty of Life Sciences , University of Manchester , Manchester , UK
| | - Jason Williams
- b Contact Dermatitis Investigation Unit , Salford Royal NHS Foundation Trust , Salford , Manchester , UK , and
| | - Gavin Maxwell
- c Unilever Safety and Environmental Assurance Centre, Colworth Science Park , Sharnbrook , Bedford , UK
| | - Nichola Gellatly
- c Unilever Safety and Environmental Assurance Centre, Colworth Science Park , Sharnbrook , Bedford , UK
| | - Rebecca J Dearman
- a Faculty of Life Sciences , University of Manchester , Manchester , UK
| | - Ian Kimber
- a Faculty of Life Sciences , University of Manchester , Manchester , UK
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Thorn M, Hudson AW, Kreeger J, Kawabe TT, Bowman CJ, Collinge M. Evaluation of a novel delayed-type hypersensitivity assay toCandida albicansin adult and neonatal rats. J Immunotoxicol 2014; 12:350-60. [DOI: 10.3109/1547691x.2014.980925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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43
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Dhingra N, Shemer A, Correa da Rosa J, Rozenblit M, Fuentes-Duculan J, Gittler JK, Finney R, Czarnowicki T, Zheng X, Xu H, Estrada YD, Cardinale I, Suárez-Fariñas M, Krueger JG, Guttman-Yassky E. Molecular profiling of contact dermatitis skin identifies allergen-dependent differences in immune response. J Allergy Clin Immunol 2014; 134:362-72. [DOI: 10.1016/j.jaci.2014.03.009] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/14/2014] [Accepted: 03/18/2014] [Indexed: 01/08/2023]
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Ueyama A, Imura K, Kasai-Yamamoto E, Tai N, Nagira M, Shichijo M, Yasui K. Kv1.3 blockers ameliorate allergic contact dermatitis by preferentially suppressing effector memory T cells in a rat model. Clin Exp Dermatol 2014; 38:897-903. [PMID: 24252082 DOI: 10.1111/ced.12097] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2012] [Indexed: 01/02/2023]
Abstract
BACKGROUND The Kv1.3 voltage-gated potassium channel is selectively upregulated upon activation in effector memory T (TEM ) cells in inflamed tissue, and plays an important role in maintenance of T-cell activation. Although Kv1.3 blockers have been shown to ameliorate allergic contact dermatitis (ACD) in a rat model, it remains unknown whether the effect of Kv1.3 blockers on ACD is mediated by suppressing TEM cell function and/or whether naive T-cells or central memory T (TCM ) cells are influenced. AIM To analyse the detailed mechanism of Kv1.3 blockers in a rat model of ACD. METHODS We examined the effects of a Kv1.3 blocker on inflammation and production of the effector cytokine interferon (IFN)-γ in inflamed tissue in rat ACD. Single-cell suspensions were isolated from inflamed rat ears (TEM cells), and regional lymph nodes (naive T/TCM cells), and the effect of Kv1.3 blockers on anti-CD3-stimulated IFN-γ production in vitro was measured. RESULTS The Kv1.3 blocker significantly suppressed ear inflammation and IFN-γ production at the protein level in vivo. It also suppressed in vitro IFN-γ production from TEM cells from inflamed tissues, but did not suppress the function of naive T/TCM cells from lymph nodes. CONCLUSIONS We found that the Kv1.3 blocker ameliorated ACD by inhibiting TEM cell functions only, thus Kv1.3 blockers could be a potentially selective therapeutic agent for TEM cell-mediated inflammatory skin diseases without producing harmful side-effects.
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Affiliation(s)
- A Ueyama
- Innovative Drug Discovery Research Laboratories, Shionogi and Co. Ltd, Toyonaka, Japan
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Schmidt J, Johansen J, Nielsen M, Zimersson E, Svedman C, Bruze M, Engkilde K, Poulsen S, Geisler C, Bonefeld C. Immune responses to hair dyes containing toluene‐2,5‐diamine. Br J Dermatol 2014; 170:352-9. [DOI: 10.1111/bjd.12676] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2013] [Indexed: 11/29/2022]
Affiliation(s)
- J.D. Schmidt
- Department of International Health Immunology and Microbiology Copenhagen University Hospital Gentofte Denmark
- National Allergy Research Centre Department of Dermato‐Allergology Copenhagen University Hospital Gentofte Denmark
| | - J.D. Johansen
- National Allergy Research Centre Department of Dermato‐Allergology Copenhagen University Hospital Gentofte Denmark
| | - M.M. Nielsen
- Department of International Health Immunology and Microbiology Copenhagen University Hospital Gentofte Denmark
| | - E. Zimersson
- Department of Occupational and Environmental Dermatology Malmo University Hospital Malmo Sweden
| | - C. Svedman
- Department of Occupational and Environmental Dermatology Malmo University Hospital Malmo Sweden
| | - M. Bruze
- Department of Occupational and Environmental Dermatology Malmo University Hospital Malmo Sweden
| | - K. Engkilde
- National Allergy Research Centre Department of Dermato‐Allergology Copenhagen University Hospital Gentofte Denmark
| | - S.S. Poulsen
- Department of Biomedical Sciences Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
| | - C. Geisler
- Department of International Health Immunology and Microbiology Copenhagen University Hospital Gentofte Denmark
| | - C.M. Bonefeld
- Department of International Health Immunology and Microbiology Copenhagen University Hospital Gentofte Denmark
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Liu J, Harberts E, Tammaro A, Girardi N, Filler RB, Fishelevich R, Temann A, Licona-Limón P, Girardi M, Flavell RA, Gaspari AA. IL-9 regulates allergen-specific Th1 responses in allergic contact dermatitis. J Invest Dermatol 2014; 134:1903-1911. [PMID: 24487305 PMCID: PMC4303591 DOI: 10.1038/jid.2014.61] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 12/21/2013] [Accepted: 01/02/2014] [Indexed: 02/02/2023]
Abstract
The cytokine IL-9, derived primarily from T-helper 9 (Th9) lymphocytes, promotes expansion of the Th2 subset and is implicated in the mechanisms of allergic asthma. We hypothesize that IL-9 also has a role in human allergic contact dermatitis (ACD). To investigate this hypothesis, skin biopsy specimens of positive patch-test sites from non-atopic patients were assayed using quantitative PCR and immunohistochemistry. The cytokines IFN-γ, IL-4, IL-17A, IL-9, and PU.1, a Th9 associated transcription factor, were elevated when compared with paired normal skin. Immunohistochemistry on ACD skin biopsies identified PU.1+ CD3+ and PU.1+ CD4+ cells, consistent with Th9 lymphocytes, in the inflammatory infiltrate. Peripheral blood mononuclear cells from nickel-allergic patients, but not nonallergic controls, show significant IL-9 production in response to nickel. Blocking studies with mAbs to HLA-DR (but not HLA-A, -B, -C) or chloroquine significantly reduced this nickel-specific IL-9 production. In addition, blockade of IL-9 or IL-4 enhanced allergen-specific IFN-γ production. A contact hypersensitivity model using IL-9(-/-) mice shows enhanced Th1 lymphocyte immune responses, when compared with wild-type mice, consistent with our human in vitro data. This study demonstrates that IL-9, through its direct effects on Th1 and ability to promote IL-4 secretion, has a regulatory role for Th1 lymphocytes in ACD.
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Affiliation(s)
- Juan Liu
- Department of Dermatology, University of Maryland, Baltimore, Maryland, USA
| | - Erin Harberts
- Department of Dermatology, University of Maryland, Baltimore, Maryland, USA; Department of Microbiology/Immunology, University of Maryland, Baltimore, Maryland, USA
| | - Antonella Tammaro
- Department of Dermatology, University of Maryland, Baltimore, Maryland, USA; Department of Dermatology, La Sapienza University, Rome, Italy
| | | | - Renata B Filler
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Rita Fishelevich
- Department of Dermatology, University of Maryland, Baltimore, Maryland, USA
| | - Angela Temann
- Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Paula Licona-Limón
- Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Michael Girardi
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Richard A Flavell
- Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Anthony A Gaspari
- Department of Dermatology, University of Maryland, Baltimore, Maryland, USA; Department of Microbiology/Immunology, University of Maryland, Baltimore, Maryland, USA.
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47
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Vocanson M, Nicolas JF, Basketter D. In vitroapproaches to the identification and characterization of skin sensitizers. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/17469872.2013.814882] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Spiewak R, Pietowska J, Curzytek K. Nickel: a unique allergen – from molecular structure to European legislation. Expert Rev Clin Immunol 2014; 3:851-9. [DOI: 10.1586/1744666x.3.6.851] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Human T cell priming assay: depletion of peripheral blood lymphocytes in CD25(+) cells improves the in vitro detection of weak allergen-specific T cells. EXPERIENTIA SUPPLEMENTUM (2012) 2014; 104:89-100. [PMID: 24214620 DOI: 10.1007/978-3-0348-0726-5_7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To develop an in vitro assay that recapitulates the key event of allergic contact dermatitis (ACD), that is the priming of effector T cells by hapten-presenting dendritic cells, and then allows for the sensitive detection of chemical allergens represents a major challenge. Classical human T cell priming assays (hTCPA) that have been developed in the past, using hapten-loaded monocyte-derived dendritic cells (MDDCs) as antigen-presenting cells and peripheral blood lymphocytes (PBLs) as responding cells, were not efficient to prime T cells to common allergens with moderate/weak sensitizing properties. Recent progress in the understanding of the effector and regulatory mechanisms of ACD have shown that T cell priming requires efficient uptake of allergens by immunogenic DCs and that it is controlled by several subsets of regulatory cells including CD25(+) Tregs. We therefore analyzed various parameters involved in allergen-specific T cell activation in vitro and showed that priming of allergen-specific T cells is hampered by several subsets of immune cells comprising CD1a(neg) DCs, CD25(+) T cells, and CD56(+) regulatory cells.CD4(+)CD25(+)FoxP3(+) Tregs prevented the in vitro T cell priming to moderate/weak allergens, and depletion of human PBLs in CD25(+) cells significantly increased specific T cell proliferation and IFN-γ secretion. CD56(+) cells exerted an additional control of T cell priming since co-depletion of both CD56(+) and CD25(+) cells improved the magnitude of chemical-specific T cell activation. Finally, CD1a(low) MDDCs were able to inhibit T cell activation obtained by allergen-pulsed CD1a(high) MDDC. Moreover, we showed that uptake by DC of allergen-encapsulated nanoparticles significantly increased their activation status and their ability to prompt specific T cell activation. Hence, by combining the different strategies, i.e., depletion of CD25(+) and CD56(+) cells, use of CD1a(high) MDDC, and nanoparticle encapsulation of allergens, it was possible to induce T cell priming to most of the moderate/weak allergens, including lipophilic molecules highly insoluble in culture media. Therefore, the present optimized in vitro human T cell priming assay is a valuable method to detect the sensitizing properties of chemical allergens.
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Chong SZ, Tan KW, Wong FHS, Chua YL, Tang Y, Ng LG, Angeli V, Kemeny DM. CD8 T cells regulate allergic contact dermatitis by modulating CCR2-dependent TNF/iNOS-expressing Ly6C+ CD11b+ monocytic cells. J Invest Dermatol 2013; 134:666-676. [PMID: 24061165 DOI: 10.1038/jid.2013.403] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/25/2013] [Accepted: 09/08/2013] [Indexed: 12/23/2022]
Abstract
Monocytes and their derived cells have critical roles in inflammation and immune defense. However, their function in skin diseases such as allergic contact dermatitis remains poorly defined. Using a model of contact hypersensitivity (CHS) toward 2,4-dinitrochlorobenzene, we show that Ly6C+ CD11b+ monocytic cells participate in the pathophysiology of CHS and their accumulation is regulated by effector CD8 T cells. These Ly6C+ CD11b+ monocytic cells are the primary contributors of tumor necrosis factor-α (TNF-α) and inducible nitric oxide synthase (iNOS) and derive from Ly6C(hi)CCR2+ monocytes, as they were absent in non-inflamed skin and accumulate as a consequence of inflammation in a C-C chemokine receptor type 2 (CCR2)-dependent manner. Importantly, CCR2(-/-) mice, or wild-type mice depleted of monocytes via clodronate liposomes, display a marked decrease in TNF-α and iNOS expression accompanied by attenuated skin inflammation. Using transgenic mice and antibody depletion, we show that effector CD8 T cells regulate the accumulation of Ly6C+ CD11b+ monocytic cells through IL-17 and activate them for TNF-α and iNOS through IFN-γ. CD8 T cell-derived IFN-γ was also critical for the accumulation of the major histocompatibility complex II-expressing Ly6C+ CD11b+ subset, which expressed intermediate levels of CD11c and costimulatory molecules. Taken together, our findings provide further insight into the pathophysiology of allergic contact dermatitis by showing that CD8 T cells regulate the inflammatory cascade through TNF/iNOS-expressing Ly6C+ CD11b+ monocytic cells.
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Affiliation(s)
- Shu Zhen Chong
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore; NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, Singapore; Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore.
| | - Kar Wai Tan
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Fiona H S Wong
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - Yen Leong Chua
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - Yafang Tang
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore; NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Veronique Angeli
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - David M Kemeny
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore; NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, Singapore
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