1
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Hanna SJ, Thayer TC, Robinson EJS, Vinh NN, Williams N, Landry LG, Andrews R, Siah QZ, Leete P, Wyatt R, McAteer MA, Nakayama M, Wong FS, Yang JHM, Tree TIM, Ludvigsson J, Dayan CM, Tatovic D. Single-cell RNAseq identifies clonally expanded antigen-specific T-cells following intradermal injection of gold nanoparticles loaded with diabetes autoantigen in humans. Front Immunol 2023; 14:1276255. [PMID: 37908349 PMCID: PMC10613693 DOI: 10.3389/fimmu.2023.1276255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/02/2023] [Indexed: 11/02/2023] Open
Abstract
Gold nanoparticles (GNPs) have been used in the development of novel therapies as a way of delivery of both stimulatory and tolerogenic peptide cargoes. Here we report that intradermal injection of GNPs loaded with the proinsulin peptide C19-A3, in patients with type 1 diabetes, results in recruitment and retention of immune cells in the skin. These include large numbers of clonally expanded T-cells sharing the same paired T-cell receptors (TCRs) with activated phenotypes, half of which, when the TCRs were re-expressed in a cell-based system, were confirmed to be specific for either GNP or proinsulin. All the identified gold-specific clones were CD8+, whilst proinsulin-specific clones were both CD8+ and CD4+. Proinsulin-specific CD8+ clones had a distinctive cytotoxic phenotype with overexpression of granulysin (GNLY) and KIR receptors. Clonally expanded antigen-specific T cells remained in situ for months to years, with a spectrum of tissue resident memory and effector memory phenotypes. As the T-cell response is divided between targeting the gold core and the antigenic cargo, this offers a route to improving resident memory T-cells formation in response to vaccines. In addition, our scRNAseq data indicate that focusing on clonally expanded skin infiltrating T-cells recruited to intradermally injected antigen is a highly efficient method to enrich and identify antigen-specific cells. This approach has the potential to be used to monitor the intradermal delivery of antigens and nanoparticles for immune modulation in humans.
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Affiliation(s)
- Stephanie J. Hanna
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Terri C. Thayer
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
- Department of Biological and Chemical Sciences, Roberts Wesleyan University, Rochester, NY, United States
| | - Emma J. S. Robinson
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Ngoc-Nga Vinh
- Division of Psychological Medicine and Clinical Neurosciences, Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, United Kingdom
| | - Nigel Williams
- Division of Psychological Medicine and Clinical Neurosciences, Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, United Kingdom
| | - Laurie G. Landry
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Denver, CO, United States
| | - Robert Andrews
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Qi Zhuang Siah
- John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
| | - Pia Leete
- Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, United Kingdom
| | - Rebecca Wyatt
- Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, United Kingdom
| | | | - Maki Nakayama
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Denver, CO, United States
| | - F. Susan Wong
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Jennie H. M. Yang
- Department of Immunobiology, School of Immunology & Microbial Sciences, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Timothy I. M. Tree
- Department of Immunobiology, School of Immunology & Microbial Sciences, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Johnny Ludvigsson
- Division of Pediatrics, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences and Crown Princess Victoria Children´s Hospital, Linköping University, Linköping, Sweden
| | - Colin M. Dayan
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Danijela Tatovic
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
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2
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Yuehui Z, Hosoki M, Oshima M, Tajima T, Miyagi M, Raman S, Raju R, Matsuka Y. Identification of microRNA Signatures in Peripheral Blood of Young Women as Potential Biomarkers for Metal Allergy. Biomedicines 2023; 11:biomedicines11020277. [PMID: 36830814 PMCID: PMC9953729 DOI: 10.3390/biomedicines11020277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
MicroRNA (miRNA) is a short (19-24 nucleotide) endogenous non-protein RNA that exists in the body and controls the translation process from genes to proteins. It has become useful as a diagnostic tool and a potential treatment target in cancer research. To explore the function of miRNA in contact dermatitis, female participants with a positive metal allergy diagnosis (n = 3) were enrolled along with additional female participants with no medical history of metal allergy (n = 3). A patch test was performed on each participant. Peripheral blood was collected from all the participants before the patch test and at days 3 and 7 after starting the patch test. After total RNA was obtained from peripheral blood leukocytes and cDNA was generated, microarray analysis was performed to analyze the large-scale circulating miRNA profile. Real-time polymerase chain reaction (RT-PCR) was then used to clarify the overall target miRNA expression. Downregulation of hsa-let-7d-5p, hsa-miR-24-3p, hsa-miR-23b-3p, hsa-miR-26b-5p, and hsa-miR-150-5p was found on day 7. Certain miRNAs were confirmed using RT-PCR. These peripheral blood miRNAs could be diagnostic biomarkers for metal allergies.
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Affiliation(s)
- Zhang Yuehui
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
| | - Maki Hosoki
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
| | - Masamitsu Oshima
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
| | - Toyoko Tajima
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
| | - Mayu Miyagi
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
| | - Swarnalakshmi Raman
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
| | - Resmi Raju
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Yoshizo Matsuka
- Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 7708504, Japan
- Correspondence:
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3
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Zhou L, Liu H, Liu K, Wei S. Gold Compounds and the Anticancer Immune Response. Front Pharmacol 2021; 12:739481. [PMID: 34588987 PMCID: PMC8473785 DOI: 10.3389/fphar.2021.739481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/31/2021] [Indexed: 12/20/2022] Open
Abstract
Gold compounds are not only well-explored for cytotoxic effects on tumors, but are also known to interact with the cancer immune system. The immune system deploys innate and adaptive mechanisms to protect against pathogens and prevent malignant transformation. The combined action of gold compounds with the activated immune system has shown promising results in cancer therapy through in vivo and in vitro experiments. Gold compounds are known to induce innate immune responses; however, these responses may contribute to adaptive immune responses. Gold compounds play the role of a major hapten that acts synergistically in innate immunity. Gold compounds support cancer cell antigenicity and promote anti-tumor immune response by inducing the release of CRT, ATP, HMGB1, HSP, and NKG2D to enhance immunogenicity. Gold compounds affect various immune cells (including suppressor regulatory T cells), inhibit myeloid derived suppressor cells, and enhance the function and number of dendritic cells. Gold nanoparticles (AuNPs) have potential for improving the effect of immunotherapy and reducing the toxicity and side effects of the treatment process. Thus, AuNPs provide an ideal opportunity for exploring the combination of anticancer gold compounds and immunotherapeutic interventions.
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Affiliation(s)
- Ling Zhou
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
| | - Huiguo Liu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
| | - Kui Liu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
| | - Shuang Wei
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
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de Lima Moreira M, Souter MNT, Chen Z, Loh L, McCluskey J, Pellicci DG, Eckle SBG. Hypersensitivities following allergen antigen recognition by unconventional T cells. Allergy 2020; 75:2477-2490. [PMID: 32181878 PMCID: PMC11056244 DOI: 10.1111/all.14279] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 02/24/2020] [Accepted: 03/09/2020] [Indexed: 02/06/2023]
Abstract
Conventional T cells recognise protein-derived antigens in the context of major histocompatibility complex (MHC) class Ia and class II molecules and provide anti-microbial and anti-tumour immunity. Conventional T cells have also been implicated in type IV (also termed delayed-type or T cell-mediated) hypersensitivity reactions in response to protein-derived allergen antigens. In addition to conventional T cells, subsets of unconventional T cells exist, which recognise non-protein antigens in the context of monomorphic MHC class I-like molecules. These include T cells that are restricted to the cluster of differentiation 1 (CD1) family members, known as CD1-restricted T cells, and mucosal-associated invariant T cells (MAIT cells) that are restricted to the MHC-related protein 1 (MR1). Compared with conventional T cells, much less is known about the immune functions of unconventional T cells and their role in hypersensitivities. Here, we review allergen antigen presentation by MHC-I-like molecules, their recognition by unconventional T cells, and the potential role of unconventional T cells in hypersensitivities. We also speculate on possible scenarios of allergen antigen presentation by MHC-I-like molecules to unconventional T cells, the hallmarks of such responses, and the expected frequencies of hypersensitivities within the human population.
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Affiliation(s)
- Marcela de Lima Moreira
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
| | - Michael N. T. Souter
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
- Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Vic., Australia
| | - Zhenjun Chen
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
| | - Liyen Loh
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - James McCluskey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
| | | | - Sidonia B. G. Eckle
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
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5
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Roach KA, Anderson SE, Stefaniak AB, Shane HL, Boyce GR, Roberts JR. Evaluation of the skin-sensitizing potential of gold nanoparticles and the impact of established dermal sensitivity on the pulmonary immune response to various forms of gold. Nanotoxicology 2020; 14:1096-1117. [PMID: 32909489 DOI: 10.1080/17435390.2020.1808107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gold nanoparticles (AuNP) are largely biocompatible; however, many studies have demonstrated their potential to modulate various immune cell functions. The potential allergenicity of AuNP remains unclear despite the recognition of gold as a common contact allergen. In these studies, AuNP (29 nm) dermal sensitization potential was assessed via Local Lymph Node Assay (LLNA). Soluble gold (III) chloride (AuCl3) caused lymph node (LN) expansion (SI 10.9), whereas bulk particles (Au, 942 nm) and AuNP did not. Next, the pulmonary immune effects of AuNP (10, 30, 90 µg) were assessed 1, 4, and 8 days post-aspiration. All markers of lung injury and inflammation remained unaltered, but a dose-responsive increase in LN size was observed. Finally, mice were dermally-sensitized to AuCl3 then aspirated once, twice, or three times with Au or AuNP in doses normalized for mass or surface area (SA) to assess the impact of existing contact sensitivity to gold on lung immune responses. Sensitized animals exhibited enhanced responsivity to the metal, wherein subsequent immune alterations were largely conserved with respect to dose SA. The greatest increase in bronchoalveolar lavage (BAL) lymphocyte number was observed in the high dose group - simultaneous to preferential expansion of BAL/LN CD8+ T-cells. Comparatively, the lower SA-based doses of Au/AuNP caused more modest elevations in BAL lymphocyte influx (predominantly CD4+ phenotype), exposure-dependent increases in serum IgE, and selective expansion/activation of LN CD4+ T-cells and B-cells. Overall, these findings suggest that AuNP are unlikely to cause sensitization; however, established contact sensitivity to gold may increase immune responsivity following pulmonary AuNP exposure.
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Affiliation(s)
- K A Roach
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - S E Anderson
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - A B Stefaniak
- Respiratory Health Division (RHD), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - H L Shane
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - G R Boyce
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - J R Roberts
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
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6
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Ito T, Suzuki T, Funakoshi A, Fujiyama T, Tokura Y. CCR5 is a novel target for the treatment of experimental alopecia areata. JOURNAL OF CUTANEOUS IMMUNOLOGY AND ALLERGY 2020. [DOI: 10.1002/cia2.12092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Taisuke Ito
- Department of Dermatology Hamamatsu University School of Medicine Hamamatsu Japan
| | - Takahiro Suzuki
- Department of Dermatology & Cutaneous Surgery University of Miami Miller School of Medicine Miami FL USA
| | - Atsuko Funakoshi
- Department of Dermatology Hamamatsu University School of Medicine Hamamatsu Japan
| | - Toshiharu Fujiyama
- Department of Dermatology Hamamatsu University School of Medicine Hamamatsu Japan
| | - Yoshiki Tokura
- Department of Dermatology Hamamatsu University School of Medicine Hamamatsu Japan
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7
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Takeda Y, Suto Y, Ito K, Hashimoto W, Nishiya T, Ueda K, Narushima T, Takahashi T, Ogasawara K. TRAV7-2*02 Expressing CD8⁺ T Cells Are Responsible for Palladium Allergy. Int J Mol Sci 2017; 18:ijms18061162. [PMID: 28561797 PMCID: PMC5485986 DOI: 10.3390/ijms18061162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 12/16/2022] Open
Abstract
While metallic biomaterials have led to an improvement in the quality of life, metal allergies, especially to palladium (Pd), has caused a recent increase in allergic patients. Metal allergy is known to be a T cell-mediated delayed-type hypersensitivity (DTH); however, the pathogenic T cell subsets and the specific T cell receptor (TCR) have not been identified. Therefore, we attempted to identify the pathogenic T cells responsible for Pd allergy. We found that activating CD8+ T cells significantly increased and that the TRAV (TCRα variable) 7-2*02 chain skewed in Pd allergic mice. Furthermore, adoptive transfer experiments revealed that in vitro-cultured Pd-stimulated antigen presenting cells (APCs) function as memory APCs with recipient mice developing Pd allergy and that the frequency of TRAV7-2*02 increases the same as conventional Pd allergic mice. In contrast, neither proliferation of CD8+ T cells nor increasing of TRAV7-2*02 was observed in major histocompatibility complex I (MHC I)-deficient Pd-APCs transferred to mice. Taken together, we revealed that TRAV7-2*02-expressing CD8+ T cells are the pathogenic T cells for the development of Pd allergy. We also identified the CDR3 consensus motif of pathogenic TCRs as CAAXSGSWQLIF in TRAV7-2*02/TRAJ (TCRα junction)22*01 positive cells. These results suggest that the specific TCRs represent novel targets for the development of diagnostics and treatments for metal allergy.
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MESH Headings
- Adoptive Transfer
- Animals
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/transplantation
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cells, Cultured
- Hypersensitivity/genetics
- Hypersensitivity/immunology
- Hypersensitivity/metabolism
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Lymphocyte Activation/immunology
- Mice, Inbred C57BL
- Mice, Knockout
- Palladium/immunology
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
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Affiliation(s)
- Yuri Takeda
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
- Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Yoshiko Suto
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
| | - Koyu Ito
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
| | - Wataru Hashimoto
- Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Tadashi Nishiya
- Department of Pharmacology, School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomitamachi, Koriyama, Fukushima 963-8611, Japan.
| | - Kyosuke Ueda
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, 6-6-02 Aza Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan.
| | - Takayuki Narushima
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, 6-6-02 Aza Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan.
| | - Tetsu Takahashi
- Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Kouetsu Ogasawara
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
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8
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Kumagai K, Horikawa T, Shigematsu H, Matsubara R, Kitaura K, Eguchi T, Kobayashi H, Nakasone Y, Sato K, Yamada H, Suzuki S, Hamada Y, Suzuki R. Possible Immune Regulation of Natural Killer T Cells in a Murine Model of Metal Ion-Induced Allergic Contact Dermatitis. Int J Mol Sci 2016; 17:ijms17010087. [PMID: 26771600 PMCID: PMC4730330 DOI: 10.3390/ijms17010087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/06/2016] [Accepted: 01/07/2016] [Indexed: 11/16/2022] Open
Abstract
Metal often causes delayed-type hypersensitivity reactions, which are possibly mediated by accumulating T cells in the inflamed skin, called irritant or allergic contact dermatitis. However, accumulating T cells during development of a metal allergy are poorly characterized because a suitable animal model is unavailable. We have previously established novel murine models of metal allergy and found accumulation of both metal-specific T cells and natural killer (NK) T cells in the inflamed skin. In our novel models of metal allergy, skin hypersensitivity responses were induced through repeated sensitizations by administration of metal chloride and lipopolysaccharide into the mouse groin followed by metal chloride challenge in the footpad. These models enabled us to investigate the precise mechanisms of the immune responses of metal allergy in the inflamed skin. In this review, we summarize the immune responses in several murine models of metal allergy and describe which antigen-specific responses occur in the inflamed skin during allergic contact dermatitis in terms of the T cell receptor. In addition, we consider the immune regulation of accumulated NK T cells in metal ion-induced allergic contact dermatitis.
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Affiliation(s)
- Kenichi Kumagai
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, 2-3-1 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan.
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
| | - Tatsuya Horikawa
- Department of Dermatology, Nishi-Kobe Medical Center, 5-7-1 Kojidai, Kobe 651-2273, Japan.
| | - Hiroaki Shigematsu
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, 2-3-1 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan.
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
| | - Ryota Matsubara
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, 2-3-1 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan.
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
| | - Kazutaka Kitaura
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
| | - Takanori Eguchi
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
- Department of Oral and Maxillofacial Surgery, Toshiba Rinkan Hospital, 7-9-1 Kamitsuruma, Minami-ku, Sagamihara 252-0385, Japan.
| | - Hiroshi Kobayashi
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
- Department of Oral and Maxillofacial Surgery, Shonan Tobu Hospital, 500 Nishikubo, Chigasaki 253-0083, Japan.
| | - Yasunari Nakasone
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, 2-3-1 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan.
| | - Koichiro Sato
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, 2-3-1 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan.
| | - Hiroyuki Yamada
- Division of Oral Maxillofacial Surgery, Department of Reconstructive Oral and Maxillofacial Surgery, Iwate Medical University School of Dentistry, Morioka, Iwate 020-8505, Japan.
| | - Satsuki Suzuki
- Section of Biological Sciences, Research Center for Odontology, The Nippon Dental University School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.
| | - Yoshiki Hamada
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, 2-3-1 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan.
| | - Ryuji Suzuki
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan.
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10
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Kawano M, Nakayama M, Aoshima Y, Nakamura K, Ono M, Nishiya T, Nakamura S, Takeda Y, Dobashi A, Takahashi A, Endo M, Ito A, Ueda K, Sato N, Higuchi S, Kondo T, Hashimoto S, Watanabe M, Watanabe M, Takahashi T, Sasaki K, Nakamura M, Sasazuki T, Narushima T, Suzuki R, Ogasawara K. NKG2D⁺ IFN-γ⁺ CD8⁺ T cells are responsible for palladium allergy. PLoS One 2014; 9:e86810. [PMID: 24533050 PMCID: PMC3922723 DOI: 10.1371/journal.pone.0086810] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 12/19/2013] [Indexed: 11/18/2022] Open
Abstract
Nickel, cobalt, and chromium are well known to be causal agents of allergic contact dermatitis. Palladium (Pd) can also cause allergic disease and exposure results from wide use of this metal in dental restorations and jewelry. Metal allergy is categorized as a delayed-type hypersensitivity, and metal-responsive T cell clones have been isolated from allergic patients. However, compared to nickel, little is known about the pathology of allergic disease mediated by Pd, and pathogenic T cells are poorly understood. To identify the pathogenic T cells that are responsible for onset of Pd allergy, we enriched metal-responsive lymphocytes by sequential adoptive transfer of involved lymph node cells. Here we show that sequential adoptive transfer gradually increased the incidence and the intensity of Pd allergy, and CD8+ T cells are responsible for the disease as CD8+ T cell-depleted mice and β2-microglobulin-deficient mice did not develop Pd allergy. In addition, we found that draining lymph node cells skewed toward CD8+ T cells in response to Pd challenge in 8th adoptive transferred recipient mice. The CD8+ T cells expressed NKG2D, a costimulatory molecule involved in the production of IFN-γ. NKG2D ligand was also induced in Pd-injected tissues. Furthermore, both NKG2D ligand-transgenic mice, where NKG2D is downmodulated, and IFN-γ-deficient mice showed impaired Pd allergy. Taken together, these results indicate that IFN-γ-producing NKG2D+ CD8+ T cells are responsible for Pd allergy and suggest that NKG2D is a potential therapeutic target for treatment of metal allergy.
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Affiliation(s)
- Mitsuko Kawano
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Masafumi Nakayama
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Yusuke Aoshima
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aramakiaza, Aoba-ku, Sendai, Miyagi, Japan
| | - Kyohei Nakamura
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Mizuho Ono
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Tadashi Nishiya
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama, Japan
| | - Syou Nakamura
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Yuri Takeda
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
- Graduate School of Dentistry, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Akira Dobashi
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Akiko Takahashi
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Misato Endo
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Akiyo Ito
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Kyosuke Ueda
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aramakiaza, Aoba-ku, Sendai, Miyagi, Japan
| | - Naoki Sato
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Shigehito Higuchi
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Takeru Kondo
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Suguru Hashimoto
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Masamichi Watanabe
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Makoto Watanabe
- Graduate School of Dentistry, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Tetsu Takahashi
- Graduate School of Dentistry, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Keiichi Sasaki
- Graduate School of Dentistry, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Masanori Nakamura
- Graduate School of Dentistry, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Takehiko Sasazuki
- Institute for Advanced Study, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Takayuki Narushima
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aramakiaza, Aoba-ku, Sendai, Miyagi, Japan
| | - Ryuji Suzuki
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, National Hospital Organization, Minami-ku, Sagamihara, Kanagawa, Japan
| | - Kouetsu Ogasawara
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
- * E-mail:
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Shigematsu H, Kumagai K, Kobayashi H, Eguchi T, Kitaura K, Suzuki S, Horikawa T, Matsutani T, Ogasawara K, Hamada Y, Suzuki R. Accumulation of metal-specific T cells in inflamed skin in a novel murine model of chromium-induced allergic contact dermatitis. PLoS One 2014; 9:e85983. [PMID: 24465826 PMCID: PMC3896422 DOI: 10.1371/journal.pone.0085983] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 12/03/2013] [Indexed: 11/19/2022] Open
Abstract
Chromium (Cr) causes delayed-type hypersensitivity reactions possibly mediated by accumulating T cells into allergic inflamed skin, which are called irritants or allergic contact dermatitis. However, accumulating T cells during development of metal allergy are poorly characterized because a suitable animal model is not available. This study aimed to elucidate the skewing of T-cell receptor (TCR) repertoire and cytokine profiles in accumulated T cells in inflamed skin during elucidation of Cr allergy. A novel model of Cr allergy was induced by two sensitizations of Cr plus lipopolysaccharide solution into mouse groin followed by single Cr challenge into the footpad. TCR repertoires and nucleotide sequences of complementary determining region 3 were assessed in accumulated T cells from inflamed skin. Cytokine expression profiles and T-cell phenotypes were determined by qPCR. CD3+CD4+ T cells accumulated in allergic footpads and produced increased T helper 1 (Th1) type cytokines, Fas, and Fas ligand in the footpads after challenge, suggesting CD4+ Th1 cells locally expanded in response to Cr. Accumulated T cells included natural killer (NK) T cells and Cr-specific T cells with VA11-1/VB14-1 usage, suggesting metal-specific T cells driven by invariant NKT cells might contribute to the pathogenesis of Cr allergy.
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Affiliation(s)
- Hiroaki Shigematsu
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Kenichi Kumagai
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Hiroshi Kobayashi
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Oral and Maxillofacial Surgery, Nagano Matsushiro General Hospital, Nagano, Japan
| | - Takanori Eguchi
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Oral and Maxillofacial Surgery, Toshiba Rinkan Hospital, Sagamihara, Japan
| | - Kazutaka Kitaura
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Satsuki Suzuki
- Section of Biological Science, Research Center for Odontology, Nippon Dental University, Tokyo, Japan
| | - Tatsuya Horikawa
- Department of Dermatology, Nishi-Kobe Medical Center, Kobe, Japan
| | - Takaji Matsutani
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Kouetsu Ogasawara
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yoshiki Hamada
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Ryuji Suzuki
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
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Kobayashi H, Kumagai K, Eguchi T, Shigematsu H, Kitaura K, Kawano M, Horikawa T, Suzuki S, Matsutani T, Ogasawara K, Hamada Y, Suzuki R. Characterization of T cell receptors of Th1 cells infiltrating inflamed skin of a novel murine model of palladium-induced metal allergy. PLoS One 2013; 8:e76385. [PMID: 24098486 PMCID: PMC3789730 DOI: 10.1371/journal.pone.0076385] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 08/30/2013] [Indexed: 12/05/2022] Open
Abstract
Metal allergy is categorized as a delayed-type hypersensitivity reaction, and is characterized by the recruitment of lymphocytes into sites of allergic inflammation. Because of the unavailability of suitable animal models for metal allergy, the role of T cells in the pathogenesis of metal allergy has not been explored. Thus, we developed a novel mouse model for metal allergy associated with infiltration of T cells by multiple injections of palladium (Pd) plus lipopolysaccharide into the footpad. Using this model, we characterized footpad-infiltrating T cells in terms of phenotypic markers, T cell receptor (TCR) repertoires and cytokine expression. CD3+ CD4+ T cells accumulated in the allergic footpads 7 days after Pd challenge. The expression levels of CD25, interleukin-2, interferon-γ and tumor necrosis factor, but not interleukin-4 and interleukin-5, increased in the footpads after challenge, suggesting CD4+ T helper 1 (Th1) cells locally expanded in response to Pd. Infiltrated T cells in the footpads frequently expressed AV18-1 and BV8-2 T cell receptor (TCR) chains compared with T cells in the lymph nodes and exhibited oligoclonality. T-cell clones identified from Pd-allergic mouse footpads shared identical CDR3 sequences containing AV18-1 and BV8-2. These results suggest that TCR AV18-1 and BV8-2 play dominant and critical parts in the antigen specificity of Pd-specific Th1 cells.
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Affiliation(s)
- Hiroshi Kobayashi
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, Nagano Matsushiro General Hospital, Nagano, Japan
| | - Kenichi Kumagai
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Takanori Eguchi
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- Department of Oral and Maxillofacial Surgery, Toshiba Rinkan Hospital, Sagamihara, Japan
| | - Hiroaki Shigematsu
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Kazutaka Kitaura
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Mitsuko Kawano
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Tatsuya Horikawa
- Department of Dermatology, Nishi-Kobe Medical Center, Kobe, Japan
| | - Satsuki Suzuki
- Section of Biological Science, Research Center for Odontology, Nippon Dental University, Tokyo, Japan
| | - Takaji Matsutani
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
| | - Kouetsu Ogasawara
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yoshiki Hamada
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Ryuji Suzuki
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Rheumatology and Allergy, Sagamihara National Hospital, National Hospital Organization, Sagamihara, Japan
- * E-mail:
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13
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Eguchi T, Kumagai K, Kobayashi H, Shigematsu H, Kitaura K, Suzuki S, Horikawa T, Hamada Y, Ogasawara K, Suzuki R. Accumulation of invariant NKT cells into inflamed skin in a novel murine model of nickel allergy. Cell Immunol 2013; 284:163-71. [DOI: 10.1016/j.cellimm.2013.07.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 06/17/2013] [Accepted: 07/23/2013] [Indexed: 10/26/2022]
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Abstract
Metal hypersensitivity is a common immune disorder. Human immune systems mount the allergic attacks on metal ions through skin contacts, lung inhalation and metal-containing artificial body implants. The consequences can be simple annoyances to life-threatening systemic illness. Allergic hyper-reactivities to nickel (Ni) and beryllium (Be) are the best-studied human metal hypersensitivities. Ni-contact dermatitis affects 10 % of the human population, whereas Be compounds are the culprits of chronic Be disease (CBD). αβ T cells (T cells) play a crucial role in these hypersensitivity reactions. Metal ions work as haptens and bind to the surface of major histocompatibility complex (MHC) and peptide complex. This modifies the binding surface of MHC and triggers the immune response of T cells. Metal-specific αβ T cell receptors (TCRs) are usually MHC restricted, especially MHC class II (MHCII) restricted. Numerous models have been proposed, yet the mechanisms and molecular basis of metal hypersensitivity remain elusive. Recently, we determined the crystal structures of the Ni and Be presenting human MHCII molecules, HLA-DR52c (DRA*0101, DRB3*0301) and HLA-DP2 (DPA1*0103, DPB1*0201). These structures revealed unusual features of MHCII molecules and shed light on how metal ions are recognized by T cells.
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15
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Hashizume H, Fujiyama T, Kanebayashi J, Kito Y, Hata M, Yagi H. Skin recruitment of monomyeloid precursors involves human herpesvirus-6 reactivation in drug allergy. Allergy 2013; 68:681-9. [PMID: 23573902 DOI: 10.1111/all.12138] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2013] [Indexed: 01/09/2023]
Abstract
BACKGROUND In drug-induced hypersensitivity syndrome (DIHS), latent human herpesvirus (HHV)-6 is frequently reactivated in association with flaring of symptoms such as fever and hepatitis. We recently demonstrated an emergence of monomyeloid precursors expressing HHV-6 antigen in the circulation during this clinical course. METHODS To clarify the mechanism of HHV-6 reactivation, we immunologically investigated peripheral blood mononuclear cells (PBMCs), skin-infiltrating cells, and lymphocytes expanded from skin lesions of patients with DIHS. RESULTS The circulating monomyeloid precursors in the patients with DIHS were mostly CD11b(+) CD13(+) CD14(-) CD16(high) and showed substantial expression of skin-associated molecules, such as CCR4. CD13(+) CD14(-) cells were also found in the DIHS skin lesions, suggesting skin recruitment of this cell population. We detected high levels of high-mobility group box (HMGB)-1 in blood and skin lesions in the active phase of patients with DIHS and showed that recombinant HMGB-1 had functional chemoattractant activity for monocytes/monomyeloid precursors in vitro. HHV-6 infection of the skin-resident CD4(+) T cells was confirmed by the presence of its genome and antigen. This infection was likely to be mediated by monomyeloid precursors recruited to the skin, because normal CD4(+) T cells gained HHV-6 antigen after in vitro coculture with highly virus-loaded monomyeloid precursors from the patients. CONCLUSIONS Our results suggest that monomyeloid precursors harboring HHV-6 are navigated by HMGB-1 released from damaged skin and probably cause HHV-6 transmission to skin-infiltrating CD4(+) T cells, which is an indispensable event for HHV-6 replication. These findings implicate the skin as a cryptic and primary site for initiating HHV-6 reactivation.
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Affiliation(s)
| | - T. Fujiyama
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu; Japan
| | - J. Kanebayashi
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu; Japan
| | - Y. Kito
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu; Japan
| | - M. Hata
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu; Japan
| | - H. Yagi
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu; Japan
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16
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Ito T, Hashizume H, Shimauchi T, Funakoshi A, Ito N, Fukamizu H, Takigawa M, Tokura Y. CXCL10 produced from hair follicles induces Th1 and Tc1 cell infiltration in the acute phase of alopecia areata followed by sustained Tc1 accumulation in the chronic phase. J Dermatol Sci 2013; 69:140-7. [DOI: 10.1016/j.jdermsci.2012.12.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/03/2012] [Accepted: 12/07/2012] [Indexed: 11/16/2022]
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17
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Hashizume H. Recent progress of elucidating the mechanisms of drug hypersensitivity. Asia Pac Allergy 2012; 2:203-9. [PMID: 22872823 PMCID: PMC3406300 DOI: 10.5415/apallergy.2012.2.3.203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Accepted: 06/27/2012] [Indexed: 12/26/2022] Open
Abstract
Recent technical approaches to investigating drug hypersensitivity have provided a great deal of information to solve the mechanisms that remain poorly understood. First, immunological investigations and in silico analysis have revealed that a novel interaction between T cells and antigen-presenting cells, namely the pharmacological interaction concept, is involved in drug recognition and the hapten theory. Second, progress in immunology has provided a new concept of CD4+ T cell subsets. Th17 cells have proven to be a critical player in acute generalized exanthematous pustulosis. Our recent findings suggest that this subset might contribute to the pathogenesis of Stevens-Johnson syndrome/toxic epidermal necrolysis. Third, alarmins, molecules associated with innate immunity, are also associated with exaggeration and the persistence of severe drug hypersensitivity. The latest innovative techniques are providing a new landscape to examine drug hypersensitivity.
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Affiliation(s)
- Hideo Hashizume
- Department of Dermatology, Shimada Municipal Hospital, Shimada, Shizuoka 427-8502, Japan
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18
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Danscher G, Larsen A. Effects of dissolucytotic gold ions on recovering brain lesions. Histochem Cell Biol 2010; 133:367-73. [PMID: 20237795 DOI: 10.1007/s00418-010-0681-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2010] [Indexed: 01/03/2023]
Abstract
Recent experimental research has shown that metallic gold releases charged gold atoms when placed intracerebrally and that the liberated gold ions affect inflammation in the brain. The observations suggest that metallic gold can be used as a safe suppressor of inflammation in the central nervous system.
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Affiliation(s)
- Gorm Danscher
- Department of Anatomy and Neurobiology, University of Aarhus, 8000, Aarhus C, Denmark.
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