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Gordon H, Wichmann K, Lewis A, Sanders T, Wildemann M, Hoti I, Hornsby E, Kok KB, Silver A, Lindsay JO, Stagg AJ. Human Intestinal Dendritic Cells Can Overcome Retinoic Acid Signaling to Generate Proinflammatory CD4 T Cells with Both Gut and Skin Homing Properties. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:96-106. [PMID: 37955427 DOI: 10.4049/jimmunol.2300340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/18/2023] [Indexed: 11/14/2023]
Abstract
Retinoic acid, produced by intestinal dendritic cells (DCs), promotes T cell trafficking to the intestinal mucosa by upregulating α4β7 integrin and inhibiting the generation of cutaneous leukocyte Ag (CLA) required for skin entry. In the present study, we report that activation of human naive CD4 T cells in an APC-free system generates cells expressing α4β7 alone; in contrast, activation by intestinal DCs that produce retinoic acid and induce high levels of α4β7 also results in CLA expression, generating CLA+α4β7+ "dual tropic" cells, with both gut and skin trafficking potential, that also express high levels of α4β1 integrin. DC generation of CLA+α4β7+ T cells is associated with upregulation of FUT7, a fucosyltransferase involved in CLA generation; requires cell contact; and is enhanced by IL-12/IL-23. The blood CD4+ T cell population contains CLA+α4β7+ cells, which are significantly enriched for cells capable of IFN-γ, IL-17, and TNF-α production compared with conventional CLA-α4β7+ cells. Dual tropic lymphocytes are increased in intestinal tissue from patients with Crohn's disease, and single-cell RNA-sequencing analysis identifies a transcriptionally distinct cluster of FUT7-expressing cells present only in inflamed tissue; expression of genes associated with cell proliferation suggests that these cells are undergoing local activation. The expression of multiple trafficking molecules by CLA+α4β7+ T cells can enable their recruitment by alternative pathways to both skin and gut; they may contribute to both intestinal and cutaneous manifestations of inflammatory bowel disease.
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Affiliation(s)
- Hannah Gordon
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - Katherine Wichmann
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - Amy Lewis
- Centre for Genomics and Child Health, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - Theodore Sanders
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - Martha Wildemann
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - Inva Hoti
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - Eve Hornsby
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - K Bel Kok
- Department of Gastroenterology, Barts Health NHS Trust, London, United Kingdom
| | - Andrew Silver
- Centre for Genomics and Child Health, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
| | - James O Lindsay
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
- Department of Gastroenterology, Barts Health NHS Trust, London, United Kingdom
| | - Andrew J Stagg
- Centre for Immunobiology, Blizard Institute, Faculty of Medicine and dentistry, Barts and The London Medical School, Queen Mary University of London, London, United Kingdom
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2
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Riedel F, Aparicio-Soto M, Curato C, Münch L, Abbas A, Thierse HJ, Peitsch WK, Luch A, Siewert K. Unique and common TCR repertoire features of Ni 2+ -, Co 2+ -, and Pd 2+ -specific human CD154 + CD4+ T cells. Allergy 2023; 78:270-282. [PMID: 36005389 DOI: 10.1111/all.15494] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/21/2022] [Accepted: 08/08/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Apart from Ni2+ , Co2+ , and Pd2+ ions commonly trigger T cell-mediated allergic contact dermatitis. However, in vitro frequencies of metal-specific T cells and the mechanisms of antigen recognition remain unclear. METHODS Here, we utilized a CD154 upregulation assay to quantify Ni2+ -, Co2+ -, and Pd2+ -specific CD4+ T cells in peripheral blood mononuclear cells (PBMC). Involved αβ T cell receptor (TCR) repertoires were analyzed by high-throughput sequencing. RESULTS Peripheral blood mononuclear cells incubation with NiSO4 , CoCl2 , and PdCl2 increased frequencies of CD154 + CD4+ memory T cells that peaked at ~400 μM. Activation was TCR-mediated as shown by the metal-specific restimulation of T cell clones. Most abundant were Pd2+ -specific T cells (mean 3.5%, n = 19), followed by Co2+ - and Ni2+ -specific cells (0.6%, n = 18 and 0.3%, n = 20) in both allergic and non-allergic individuals. A strong overrepresentation of the gene segment TRAV9-2 was unique for Ni2+ -specific TCR (28% of TCR) while Co2+ and Pd2+ -specific TCR favorably expressed TRAV2 (8%) and the TRBV4 gene segment family (21%), respectively. As a second, independent mechanism of metal ion recognition, all analyzed metal-specific TCR showed a common overrepresentation of a histidine in the complementarity determining region 3 (CDR3; 15% of α-chains, 34% of β-chains). The positions of the CDR3 histidine among metal-specific TCR mirrored those in random repertoires and were conserved among cross-reactive clonotypes. CONCLUSIONS Induced CD154 expression allows a fast and comprehensive detection of Ni2+ -, Co2+ -, and Pd2+ -specific CD4+ T cells. Distinct TCR repertoire features underlie the frequent activation and cross-reactivity of human metal-specific T cells.
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Affiliation(s)
- Franziska Riedel
- Dermatotoxicology Study Centre, German Federal Institute for Risk Assessment, Berlin, Germany.,Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin, Germany.,Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Marina Aparicio-Soto
- Dermatotoxicology Study Centre, German Federal Institute for Risk Assessment, Berlin, Germany.,Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Caterina Curato
- Dermatotoxicology Study Centre, German Federal Institute for Risk Assessment, Berlin, Germany.,Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Lucas Münch
- Dermatotoxicology Study Centre, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Amro Abbas
- Dermatotoxicology Study Centre, German Federal Institute for Risk Assessment, Berlin, Germany.,German Rheumatism Research Center (DRFZ), Berlin, Germany
| | - Hermann-Josef Thierse
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Wiebke K Peitsch
- Department of Dermatology and Phlebology, Vivantes Klinikum im Friedrichshain, Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin, Germany.,Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Katherina Siewert
- Dermatotoxicology Study Centre, German Federal Institute for Risk Assessment, Berlin, Germany.,Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, Berlin, Germany
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3
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Roesner LM, Farag AK, Pospich R, Traidl S, Werfel T. T-cell receptor sequencing specifies psoriasis as a systemic and atopic dermatitis as a skin-focused, allergen-driven disease. Allergy 2022; 77:2737-2747. [PMID: 35255168 DOI: 10.1111/all.15272] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/28/2022] [Accepted: 02/12/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) and psoriasis represent two of the most common inflammatory skin diseases in developed countries. A hallmark of both diseases is T-cell infiltration into the skin. However, it is still not clarified to what extent these infiltrating T cells are antigen-specific skin-homing T cells or unspecific heterogeneous bystander cells. METHODS To elucidate this, T cells from lesional skin and from blood of 9 AD and 10 psoriasis patients were compared by receptor (TCR) sequencing. Therefore, peripheral blood mononuclear cells (PBMC) were cell-sorted according to expression of the cutaneous leukocyte antigen (CLA) into skin-homing (CLA+ ) and non-skin-homing (CLA- ) subfractions. Aeroallergen-specific T-cell lines were grown from AD patients' PBMC in parallel. RESULTS Intra-individual comparison of TCRB CDR3 regions revealed that clonally expanded T cells in skin lesions of both AD and psoriasis patients corresponded to skin-homing circulating T cells. However, in psoriasis patients, these T-cell clones were also detectable to a larger extent among CLA- circulating T cells. Up to 28% of infiltrating cells in AD skin were identified as allergen-specific by overlapping TCR sequences. CONCLUSIONS Our data show that in line with the systemic nature of psoriasis, T-cell clones that infiltrate psoriatic skin lesions do not exclusively possess skin-homing ability and are therefore most probably specific to antigens that are not exclusively expressed or located in the skin. T cells driving AD skin inflammation appear to home nearly exclusively to the skin and are, to a certain extent, specific to aeroallergens.
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Affiliation(s)
- Lennart M Roesner
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Ahmed K Farag
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Rebecca Pospich
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Stephan Traidl
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Thomas Werfel
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
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4
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Russo I, Fagotto L, Colombo A, Sartor E, Luisetto R, Alaibac M. Near-infrared photoimmunotherapy for the treatment of skin disorders. Expert Opin Biol Ther 2021; 22:509-517. [PMID: 34860146 DOI: 10.1080/14712598.2022.2012147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Near-Infrared Photoimmunotherapy (NIR-PIT) is a novel molecularly targeted phototherapy. This technique is based on a conjugate of a near-infrared photo-inducible molecule (antibody-photon absorber conjugate, APC) and a monoclonal antibody that targets a tumor-specific antigen. To date, this novel approach has been successfully applied to several types of cancer. AREAS COVERED The authors discuss the possible use of NIR-PIT for the management of skin diseases, with special attention given to squamous cell carcinomas, advanced melanomas, and primary cutaneous lymphomas. EXPERT OPINION NIR-PIT may be an attractive strategy for the treatment of skin disorders. The main advantage of NIR-PIT therapy is its low toxicity to healthy tissues. Cutaneous lymphocyte antigen is a potential molecular target for NIR-PIT for both cutaneous T-cell lymphomas and inflammatory skin disorders.
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Affiliation(s)
- Irene Russo
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Laura Fagotto
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Anna Colombo
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Emma Sartor
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Roberto Luisetto
- DISCOG-Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Mauro Alaibac
- Unit of Dermatology, University of Padua, Padova, Italy
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5
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Datsi A, Steinhoff M, Ahmad F, Alam M, Buddenkotte J. Interleukin-31: The "itchy" cytokine in inflammation and therapy. Allergy 2021; 76:2982-2997. [PMID: 33629401 DOI: 10.1111/all.14791] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 12/12/2022]
Abstract
The cytokine interleukin-31 has been implicated in the pathophysiology of multiple atopic disorders such as atopic dermatitis (AD), allergic rhinitis, and airway hyper-reactivity. In AD, IL-31 has been identified as one of the main "drivers" of its cardinal symptom, pruritus. Here, we summarize the mechanisms by which IL-31 modulates inflammatory and allergic diseases. TH 2 cells play a central role in AD and release high levels of TH 2-associated cytokines including IL-31, thereby mediating inflammatory responses, initiating immunoregulatory circuits, stimulating itch, and neuronal outgrowth through activation of the heterodimeric receptor IL-31 receptor A (IL31RA)/Oncostatin M receptor (OSMRβ). IL31RA expression is found on human and murine dorsal root ganglia neurons, epithelial cells including keratinocytes and various innate immune cells. IL-31 is a critical cytokine involved in neuroimmune communication, which opens new avenues for cytokine modulation in neuroinflammatory diseases including AD/pruritus, as validated by recent clinical trials using an anti-IL-31 antibody. Accordingly, inhibition of IL-31-downstream signaling may be a beneficial approach for various inflammatory diseases including prurigo. However, as to whether downstream JAK inhibitors directly block IL-31-mediated-signaling needs to be clarified. Targeting the IL-31/IL31RA/OSMRβ axis appears to be a promising approach for inflammatory, neuroinflammatory, and pruritic disorders in the future.
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Affiliation(s)
- Angeliki Datsi
- Institute for Transplantational Diagnostics and Cell Therapeutics University Hospital Düsseldorf Düsseldorf Germany
| | - Martin Steinhoff
- Department of Dermatology and Venereology Hamad Medical Corporation Doha Qatar
- Translational Research InstituteAcademic Health SystemHamad Medical Corporation Doha Qatar
- Dermatology Institute Academic Health SystemHamad Medical Corporation Doha Qatar
- Department of Dermatology Weill Cornell Medicine‐Qatar Doha Qatar
- Qatar UniversityCollege of Medicine Doha Qatar
| | - Fareed Ahmad
- Department of Dermatology and Venereology Hamad Medical Corporation Doha Qatar
- Translational Research InstituteAcademic Health SystemHamad Medical Corporation Doha Qatar
- Dermatology Institute Academic Health SystemHamad Medical Corporation Doha Qatar
| | - Majid Alam
- Department of Dermatology and Venereology Hamad Medical Corporation Doha Qatar
- Translational Research InstituteAcademic Health SystemHamad Medical Corporation Doha Qatar
- Dermatology Institute Academic Health SystemHamad Medical Corporation Doha Qatar
| | - Joerg Buddenkotte
- Department of Dermatology and Venereology Hamad Medical Corporation Doha Qatar
- Translational Research InstituteAcademic Health SystemHamad Medical Corporation Doha Qatar
- Dermatology Institute Academic Health SystemHamad Medical Corporation Doha Qatar
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Kuraiem BP, Verícimo MA, Knoff M, Mattos DPBGD, São Clemente SCD. Sensitization with Eustrongylides sp. (Nematoda: Dioctophymatidae) antigens induce production of specific IgG and IgE in murine model. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2021; 30:e023920. [PMID: 33909838 DOI: 10.1590/s1984-29612021018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/16/2021] [Indexed: 11/22/2022]
Abstract
Fish consumption plays an important role in human diet. Hoplias malabaricus, commonly known as traíra, is a freshwater fish widely appreciated in several Brazilian states and frequently infected by Eustrongylides sp. fourth-instar larvae (L4). The aim of the present study was to evaluate allergenic potential of Eustrongylides sp. L4 crude extract (CEE). BALB/c mice were immunized intraperitoneally (IP) by 10 μg CEE with 2 mg of aluminum hydroxide on days 0 and 35. Specific IgG and IgE antibody levels were determined after immunization and cellular immunity was evaluated by assessing intradermal reaction in ear pavilion. Epicutaneous sensitization was performed in dorsal region by antigen exposure using a Finn-type chamber containing 50 μg of CEE or saline solution, followed by evaluation of specific antibody levels. IP immunization resulted in a gradual increase in IgG antibody levels and transitory IgE production. Significant increase in ear thickness was observed in cellular hypersensitivity reaction. In case of antigen exposure by epicutaneous route, CEE was able to induce meaningfully increased levels of specific IgG and IgE antibodies as well as heightened cellular immunity. Both intraperitoneal immunization and epicutaneous contact with Eustrongylides sp. larval antigens were observed for first time to be capable of inducing immunological sensitization in mice.
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Affiliation(s)
- Bianca Porto Kuraiem
- Laboratório de Inspeção e Tecnologia do Pescado, Faculdade de Medicina Veterinária, Universidade Federal Fluminense - UFF, Niterói, RJ, Brasil
| | - Maurício Afonso Verícimo
- Laboratório de Imunobiologia das Doenças Infecciosas e Granulomatosas, Instituto de Biologia, Universidade Federal Fluminense - UFF, Niterói, RJ, Brasil
| | - Marcelo Knoff
- Laboratório de Helmintos Parasitos de Vertebrados, Instituto Oswaldo Cruz, Fundação Oswaldo CRUZ - FIOCRUZ, Rio de Janeiro, RJ, Brasil
| | | | - Sérgio Carmona de São Clemente
- Laboratório de Inspeção e Tecnologia do Pescado, Faculdade de Medicina Veterinária, Universidade Federal Fluminense - UFF, Niterói, RJ, Brasil
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Lee HS, Kim J, Choi HG, Kim EK, Jun CD. Licoricidin Abrogates T-Cell Activation by Modulating PTPN1 Activity and Attenuates Atopic Dermatitis In Vivo. J Invest Dermatol 2021; 141:2490-2498.e6. [PMID: 33857487 DOI: 10.1016/j.jid.2021.02.759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/13/2021] [Accepted: 02/16/2021] [Indexed: 12/01/2022]
Abstract
Licoricidin, the fifth-highest fraction among the isolated 48 molecules from Glycyrrhiza uralensis extracts, has been known as an anti-inflammatory bioactive molecule; however, few studies have shown its inhibitory effect on T-cell activation and atopic dermatitis (AD). This study examined the therapeutic potential of licoricidin in AD by modulating T-cell activation with molecular mechanisms. Licoricidin attenuated the expression of IL-2 mRNA in stimulated T cells without cytotoxicity. Because tyrosine-protein phosphatase nonreceptor type 1 was predicted to interact physically with licoricidin in T cells in silico analysis, the results of tyrosine-protein phosphatase nonreceptor type 1 activity assay and phosphorylation study predicted that licoricidin might abrogate the activity of tyrosine-protein phosphatase nonreceptor type 1 during T-cell activation. Pretreatment with licoricidin controlled the dephosphorylation of Lck on TCR-mediated stimulation. Moreover, licoricidin alleviated the symptoms of dinitrochlorobenzene- and/or mite extract-induced AD, including ear thickness and serum IgE level. Microscopic analysis also showed the effects of licoricidin on the thickness of the dermis and epidermis and infiltration of immune cells. Furthermore, mRNA levels of proinflammatory cytokines were attenuated in the ear lesions of licoricidin-treated AD mice. Therefore, licoricidin has therapeutic potential for treating AD, and its underlying mechanism involves effective modulation of T-cell activation by controlling tyrosine-protein phosphatase nonreceptor type 1 to maintain Lck phosphorylation.
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Affiliation(s)
- Hyun-Su Lee
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea; Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea
| | - Jooyoung Kim
- Office of Academic Affairs, Konkuk University, Chungju, Republic of Korea
| | - Hyun Gyu Choi
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Eun-Kyung Kim
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, Busan, Republic of Korea; Center for Silver-targeted Biomaterials, Brain Busan 21 Plus program, Dong-A University, Busan, Republic of Korea.
| | - Chang-Duk Jun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea; Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea
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8
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Photodistributed Rash Progressing to Erythroderma: Answer. Am J Dermatopathol 2021; 42:463-465. [PMID: 32433320 DOI: 10.1097/dad.0000000000001413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Aparicio‐Soto M, Riedel F, Leddermann M, Bacher P, Scheffold A, Kuhl H, Timmermann B, Chudakov DM, Molin S, Worm M, Heine G, Thierse H, Luch A, Siewert K. TCRs with segment TRAV9-2 or a CDR3 histidine are overrepresented among nickel-specific CD4+ T cells. Allergy 2020; 75:2574-2586. [PMID: 32298488 DOI: 10.1111/all.14322] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/24/2020] [Accepted: 03/31/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Nickel is the most frequent cause of T cell-mediated allergic contact dermatitis worldwide. In vitro, CD4+ T cells from all donors respond to nickel but the involved αβ T cell receptor (TCR) repertoire has not been comprehensively analyzed. METHODS We introduce CD154 (CD40L) upregulation as a fast, unbiased, and quantitative method to detect nickel-specific CD4+ T cells ex vivo in blood of clinically characterized allergic and non allergic donors. Naïve (CCR7+ CD45RA+) and memory (not naïve) CD154+ CD4+ T cells were analyzed by flow cytometry after 5 hours of stimulation with 200 µmol/L NiSO4 ., TCR α- and β-chains of sorted nickel-specific and control cells were studied by high-throughput sequencing. RESULTS Stimulation of PBMCs with NiSO4 induced CD154 expression on ~0.1% (mean) of naïve and memory CD4+ T cells. In allergic donors with recent positive patch test, memory frequencies further increased ~13-fold and were associated with markers of in vivo activation. CD154 expression was TCR-mediated since single clones could be specifically restimulated. Among nickel-specific CD4+ T cells of allergic and non allergic donors, TCRs expressing the α-chain segment TRAV9-2 or a histidine in their α- or β-chain complementarity determining region 3 (CDR3) were highly overrepresented. CONCLUSIONS Induced CD154 expression represents a reliable method to study nickel-specific CD4+ T cells. TCRs with particular features respond in all donors, while strongly increased blood frequencies indicate nickel allergy for some donors. Our approach may be extended to other contact allergens for the further development of diagnostic and predictive in vitro tests.
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Affiliation(s)
- Marina Aparicio‐Soto
- Department of Chemical and Product Safety German Federal Institute for Risk Assessment Berlin Germany
| | - Franziska Riedel
- Department of Chemical and Product Safety German Federal Institute for Risk Assessment Berlin Germany
| | - Melanie Leddermann
- Department of Chemical and Product Safety German Federal Institute for Risk Assessment Berlin Germany
| | - Petra Bacher
- Institute of Immunology Christian‐Albrechts Universität zu Kiel and Universitätsklinik Schleswig‐Holstein Kiel Germany
- Institute of Clinical Molecular Biology Christian‐Albrechts Universität zu Kiel Kiel Germany
| | - Alexander Scheffold
- Institute of Immunology Christian‐Albrechts Universität zu Kiel and Universitätsklinik Schleswig‐Holstein Kiel Germany
| | - Heiner Kuhl
- Sequencing Core Facility Max‐Planck‐Institute of Molecular Genetics Berlin Germany
| | - Bernd Timmermann
- Sequencing Core Facility Max‐Planck‐Institute of Molecular Genetics Berlin Germany
| | - Dmitriy M. Chudakov
- Genomics of Adaptive Immunity Department Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Science Moscow Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine Pirogov Russian National Research Medical University Moscow Russia
- Center of Molecular Medicine CEITEC Masaryk University Brno Czech Republic
| | - Sonja Molin
- Division of Dermatology Queen's University Kingston ON Canada
- Department of Dermatology and Allergy Ludwig Maximilian University Munich Germany
| | - Margitta Worm
- Division of Allergy and Immunology Department of Dermatology, Venerology, and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - Guido Heine
- Division of Allergy and Immunology Department of Dermatology, Venerology, and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
- Department of Dermatology and Allergy University Hospital Schleswig‐Holstein Kiel Germany
| | - Hermann‐Josef Thierse
- Department of Chemical and Product Safety German Federal Institute for Risk Assessment Berlin Germany
| | - Andreas Luch
- Department of Chemical and Product Safety German Federal Institute for Risk Assessment Berlin Germany
| | - Katherina Siewert
- Department of Chemical and Product Safety German Federal Institute for Risk Assessment Berlin Germany
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10
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Myers B, Reddy V, Chan S, Thibodeaux Q, Brownstone N, Bhutani T. Sleep, Immunological Memory, and Inflammatory Skin Disease. Dermatology 2020; 237:1035-1038. [DOI: 10.1159/000510082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/09/2020] [Indexed: 11/19/2022] Open
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11
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de Jesús-Gil C, Ruiz-Romeu E, Ferran M, Sagristà M, Chiriac A, García P, Celada A, Pujol RM, Santamaria-Babí LF. IL-15 and IL-23 synergize to trigger Th17 response by CLA + T cells in psoriasis. Exp Dermatol 2020; 29:630-638. [PMID: 32476200 DOI: 10.1111/exd.14113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/24/2020] [Accepted: 05/04/2020] [Indexed: 11/28/2022]
Abstract
IL-15 has emerged as a potentially relevant target in the IL-17 response in psoriasis. However, its mechanism is poorly characterized in humans. IL-15 and IL-23 are constitutively expressed in the psoriatic lesion. Also, IL-15 is considered a susceptibility-associated gene in psoriasis, as are IL-23R, and HLACW6. Here, we studied the effect of IL-15 and IL-23 stimulation on the cytokine response of CLA+/CLA- T cells from 9 psoriasis patients and 3 healthy control subjects. To this end, CLA + and CLA- T cells from blood samples were cultured with epidermal cells from skin biopsies and treated with IL-15 and IL-23. After five days of culture, cytokines in supernatant were measured by ELISA or fluorescent bead-based immunoassay. There was a statistically significant increase in IL-17F and IL-17A production (P < .001) in cocultures of psoriasis skin-homing CLA + T cells with epidermal cells when stimulated with IL-15 and IL-23, but this effect was not observed in the cells of healthy controls. Interestingly, this response was reduced by around 50 to 80% by blocking HLA class I and II molecules. Our results point to the synergic action of IL-15 and IL-23 selectively for CLA + cells in psoriasis, leading to the induction of Th17 cell-related cytokines.
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Affiliation(s)
- Carmen de Jesús-Gil
- Translational Immunology, Department of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Spain
| | - Ester Ruiz-Romeu
- Translational Immunology, Department of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Spain
| | - Marta Ferran
- Department of Dermatology, Hospital del Mar Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Marc Sagristà
- Department of Dermatology, Hospital del Mar Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Anca Chiriac
- Department of DermatoPhysiology, Apollonia University, Iasi, Romania.,Dermatology Department, Nicolina Medical Center, Iasi, Romania
| | - Pablo García
- Department of Dermatology, Hospital del Mar Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Antonio Celada
- Macrophage Biology, Department of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Spain
| | - Ramon M Pujol
- Department of Dermatology, Hospital del Mar Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Luis F Santamaria-Babí
- Translational Immunology, Department of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Spain
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12
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Lin JY, Wu WH, Chen JS, Liu IL, Chiu HL, Chen HW, Tsai TL, Huang YL, Wang LF. Plasmacytoid dendritic cells suppress Th2 responses induced by epicutaneous sensitization. Immunol Cell Biol 2020; 98:215-228. [PMID: 31919905 DOI: 10.1111/imcb.12315] [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] [Received: 02/21/2019] [Revised: 07/01/2019] [Accepted: 01/07/2020] [Indexed: 11/26/2022]
Abstract
Epicutaneous (EC) sensitization with protein allergens is the most important sensitization route for atopic dermatitis. Plasmacytoid dendritic cells (pDCs) are characterized by massive secretion of interferon-α (IFNα). B6 mice are T helper type 1 (Th1)-prone and are representative of non-atopic humans, whereas BALB/c mice are Th2-prone and are representative of atopic humans. Here, we show that naïve BALB/c mice contain a greater number of nonactivated pDCs in peripheral lymph nodes (LNs) than do naïve B6 mice. Naïve BALB/c mice also have more of the CD8α- subset in LNs than naïve B6 mice. Moreover, in vivo depletion of pDCs during EC sensitization results in enhanced Th2 responses in BALB/c mice, but not in B6 mice. Mechanistically, when BALB/c mice undergo EC sensitization, there is an increase in pDCs entering draining LNs. These cells exhibit modest activation including comparable costimulation expression but increased cytokine expression compared with those of naïve mice. In vivo depletion of pDCs during EC sensitization significantly increases the activation of dermal dendritic cells (dDCs) suggesting a regulatory effect on these cells. To this end, a suppressive effect of pDCs on conventional dendritic cells was also demonstrated in vitro. Further, in vivo blockade of IFNα by an anti-IFNAR antibody (Ab) or in vivo reduction of IFNα production of pDCs by anti-siglec-H Ab both resulted in enhanced activation of dDCs. Collectively, our results demonstrate that pDCs suppress Th2 responses induced by EC sensitization via IFNα-mediated regulation of dDCs.
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Affiliation(s)
- Jing-Yi Lin
- Department of Dermatology, Chang Gung Memorial Hospital, Keelung, Taiwan.,Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Wei-Hsin Wu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jau-Shiuh Chen
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - I-Lin Liu
- Department of Dermatology, Taipei City Hospital Heping Fuyou Branch, Taipei, Taiwan
| | - Hsueh-Ling Chiu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsi-Wen Chen
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Tung-Lin Tsai
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yi-Ling Huang
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Li-Fang Wang
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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13
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Sernicola A, Russo I, Silic-Benussi M, Ciminale V, Alaibac M. Targeting the cutaneous lymphocyte antigen (CLA) in inflammatory and neoplastic skin conditions. Expert Opin Biol Ther 2020; 20:275-282. [PMID: 31951753 DOI: 10.1080/14712598.2020.1715937] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Introduction: The cutaneous lymphocyte antigen interacts with E-selectin on endothelial cells and is expressed on 15% of circulating T-cells. Skin-homing T-cells express the cutaneous lymphocyte antigen and play a role in local cutaneous immunity in inflammatory reactions and neoplastic conditions.Areas covered: Lymphocyte extravasation is the essential para-physiological mechanism enabling immune surveillance of tissues for tumors as well as effector cell recruitment to inflammatory sites.The authors focused on skin inflammatory disorders, on cutaneous lymphoproliferative disease, and on other skin malignancies.Expert opinion: Interfering with leukocyte extravasation has been regarded as an attractive strategy in skin disorders, in the past for inflammatory conditions and more recently for cutaneous T-cell lymphomas. Therapeutic blocking of skin-homing interactions has been attempted in psoriasis and atopic dermatitis and has been achieved in the treatment of cutaneous T-cell lymphomas. Cutaneous lymphocyte antigen is a potential molecular target for both systemic and skin-directed therapy for cutaneous T-cell lymphomas.
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Affiliation(s)
| | - Irene Russo
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Micol Silic-Benussi
- Department of Clinical and Experimental Oncology, Veneto Institute of Oncology IOV - IRCCS, Padova, Italy
| | - Vincenzo Ciminale
- Department of Clinical and Experimental Oncology, Veneto Institute of Oncology IOV - IRCCS, Padova, Italy
| | - Mauro Alaibac
- Unit of Dermatology, University of Padua, Padova, Italy
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14
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Roesner LM, Werfel T. Autoimmunity (or Not) in Atopic Dermatitis. Front Immunol 2019; 10:2128. [PMID: 31552053 PMCID: PMC6746887 DOI: 10.3389/fimmu.2019.02128] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/23/2019] [Indexed: 12/18/2022] Open
Abstract
Atopic dermatitis (AD), one of the most frequent inflammatory skin diseases worldwide, is believed to result from a disturbed skin barrier as well as aberrant immune reactions against per se harmless allergens. Starting mostly during childhood with a chronic, remitting relapsing course, the disease can persist into adulthood in about one fifth of patients. Immune reactions to self-proteins have been observed in AD patients already in the beginning of the Twentieth century, when human cellular extracts were shown to provoke skin lesions. However, the term “autoimmunity” has never been claimed, since AD is first and foremost an atopic disease. In contrast, this IgE-hallmarked autoreactivity was termed “autoallergy” and is ongoing discussed regarding its impact on the disease. Since severely affected patients tend to develop IgE-hypersensitivity reactions to numerous environmental allergens, the impact of immune responses to self-proteins is difficult to determine. On the other hand: any autoreactivity, irrespective of the magnitude, implicates the potential of driving the chronification of the disease while shaping the immune response. This review article revisits the observations made on autoallergy from an actual point of view and tries to approach the question whether these still point to a contribution to the disease.
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Affiliation(s)
- Lennart M Roesner
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hanover, Germany
| | - Thomas Werfel
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hanover, Germany
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15
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Wicks K, Stretton C, Popple A, Beresford L, Williams J, Maxwell G, Gosling JP, Kimber I, Dearman RJ. T lymphocyte phenotype of contact-allergic patients: experience with nickel and p-phenylenediamine. Contact Dermatitis 2019; 81:43-53. [PMID: 30779159 DOI: 10.1111/cod.13246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 11/08/2023]
Abstract
BACKGROUND There is considerable interest in understanding the immunological variables that have the greatest influence on the effectiveness of sensitization by contact allergens, particularly in the context of developing new paradigms for risk assessment of novel compounds. OBJECTIVES To examine the relationship between patch test score for three different contact allergens and the characteristics of T cell responses. METHODS A total of 192 patients with confirmed nickel, p-phenylenediamine (PPD) or methylisothiazolinone (MI) allergy were recruited from the Contact Dermatitis Investigation Unit at Salford Royal Hospital. Severity of allergy was scored by the use of patch testing, peripheral blood lymphocytes were characterized for T cell phenotype by flow cytometry, and proliferative activity was characterized by radiolabelled thymidine incorporation. Comparisons were drawn with buffy coat samples from healthy volunteers. RESULTS Patch test positivity for nickel, PPD and MI was associated with changes in the phenotype of peripheral blood T cells: increases in naïve cells, decreases in regulatory T cell frequency and the CD4+ /CD8hi ratio, and increased expression of the skin-homing marker cutaneous lymphocyte antigen (CLA), particularly for those patients with a +++ patch test score. CONCLUSIONS This increased understanding of the characteristics of the T cell responses to contact allergens may provide parameters with which to better measure health risks associated with skin sensitization.
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Affiliation(s)
- Kate Wicks
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Clare Stretton
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Amy Popple
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Lorna Beresford
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Jason Williams
- Contact Dermatitis Investigation Unit, Salford Royal NHS Foundation Trust, Salford, UK
| | - Gavin Maxwell
- Unilever Safety and Environmental Assurance Centre, Colworth Science Park, Sharnbrook, UK
| | | | - Ian Kimber
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Rebecca J Dearman
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
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16
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Patrushev AV, Samtsov AV, Nikitin VY, Ivanov AМ, Gumilevskaya OР, Sukharev AV, Sukhina IA. Origin, function and role in the development of skin diseases CLA+T-lymphocytes. VESTNIK DERMATOLOGII I VENEROLOGII 2018. [DOI: 10.25208/0042-4609-2018-94-3-20-29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The idea of CLA+T-lymphocytes, which are a special subpopulation of cells with a tropic to the skin, is given. The issues of maturation, migration and functional features of CLA+T-cells are considered. Special attention is paid to the different phenotype of memory T-cells. Modern data concerning the role of CLA+T-cells in the pathogenesis of autoimmune and allergic dermatoses, as well as malignant skin tumors are also presented. The conclusion about the necessity of further study of CLA +T-lymphocytes for detailed understanding of pathogenesis and search of variants of targeted therapy in psoriasis, atopic dermatitis, skin lymphomas and other skin diseases is made.
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17
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Trolio RDI, Lorenzo GDI, Barberio E, Iacono A, Franco R, D'Armient0 M, Delfino M, D'Armiento F. Expression of HECA-452 in Parapsoriasis and Mycosis Fungoides. Int J Immunopathol Pharmacol 2018. [DOI: 10.1177/205873920601900110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
We have investigated the HECA-452 expression in large plaque parapsoriasis (PP) and mycosis fungoides (MF) patients, evaluating the potential role of this biomarker in both cutaneous disorders. Skin specimens from 72 PP and 61 MF patients were selected in this study. We compared their actual histological diagnosis with their previous diagnosis and we found that all 72 PP patients had the same diagnosis as before (stable PP), while 26 out of 61 MF have a previous PP histological diagnosis (evolving PP). Our results show an increased expression of HECA-452 in MF compared to PP (p<0.01). Furthermore, evolving PP showed a significantly higher level of HECA-452 than stable PP (p< 0.05). We conclude that HECA-452 expression increases during the natural history of Mycosis Fungoides. HECA-452 could be used as a biomarker for MF and predict which PP evolves to MF.
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Affiliation(s)
- R. DI Trolio
- Dipartimento di Patologia Sistematica-Clinica Dermatologica, Università degli Studi di Napoli Federico II, Naples, Italy
| | - G. DI Lorenzo
- Cattedra di Oncologia Medica, Università degli Studi di Napoli Federico II, Naples, Italy
| | - E. Barberio
- Dipartimento di Patologia Sistematica-Clinica Dermatologica, Università degli Studi di Napoli Federico II, Naples, Italy
| | - A. Iacono
- Dipartimento di Scienze Biomorfologiche e Funzionali, Università degli Studi di Napoli Federico II, Naples, Italy
| | - R. Franco
- Dipartimento di Scienze Biomorfologiche e Funzionali, Università degli Studi di Napoli Federico II, Naples, Italy
| | - M. D'Armient0
- Dipartimento di Scienze Biomorfologiche e Funzionali, Università degli Studi di Napoli Federico II, Naples, Italy
| | - M. Delfino
- Dipartimento di Patologia Sistematica-Clinica Dermatologica, Università degli Studi di Napoli Federico II, Naples, Italy
| | - F.P. D'Armiento
- Dipartimento di Scienze Biomorfologiche e Funzionali, Università degli Studi di Napoli Federico II, Naples, Italy
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18
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Weissler KA, Rasooly M, DiMaggio T, Bolan H, Cantave D, Martino D, Neeland MR, Tang MLK, Dang TD, Allen KJ, Frischmeyer-Guerrerio PA. Identification and analysis of peanut-specific effector T and regulatory T cells in children allergic and tolerant to peanut. J Allergy Clin Immunol 2018; 141:1699-1710.e7. [PMID: 29454004 DOI: 10.1016/j.jaci.2018.01.035] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 12/20/2017] [Accepted: 01/03/2018] [Indexed: 01/30/2023]
Abstract
BACKGROUND Peanut allergy (PA) is potentially life-threatening and generally persists for life. Recent data suggest the skin might be an important route of initial sensitization to peanut, whereas early oral exposure to peanut is protective. In mice regulatory T (Treg) cells are central to the development of food tolerance, but their contribution to the pathogenesis of food allergy in human subjects is less clear. OBJECTIVE We sought to quantify and phenotype CD4+ peanut-specific effector T (ps-Teff) cells and peanut-specific regulatory T (ps-Treg) cells in children with and without PA or PS. METHODS ps-Teff and ps-Treg cells were identified from peripheral blood of children with PA, children with PS, and nonsensitized/nonallergic (NA) school-aged children and 1-year-old infants based on upregulation of CD154 or CD137, respectively, after stimulation with peanut extract. Expression of cytokines and homing receptors was evaluated by using flow cytometry. Methylation at the forkhead box protein 3 (FOXP3) locus was measured as a marker of Treg cell stability. RESULTS Differential upregulation of CD154 and CD137 efficiently distinguished ps-Teff and ps-Treg cells. A greater percentage of ps-Teff cells from infants with PA and infants with PS expressed the skin-homing molecule cutaneous lymphocyte antigen, suggesting activation after exposure through the skin, compared with NA infants. Although ps-Teff cells in both school-aged and infant children with PA produced primarily TH2 cytokines, a TH1-skewed antipeanut response was seen only in NA school-aged children. The frequency, homing receptor expression, and stability of ps-Treg cells in infants and school-aged children were similar, regardless of allergic status. CONCLUSIONS Exposure to peanut through the skin can prime the development of TH2 ps-Teff cells, which promote sensitization to peanut, despite the presence of normal numbers of ps-Treg cells.
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Affiliation(s)
- Katherine A Weissler
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - Marjohn Rasooly
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - Tom DiMaggio
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - Hyejeong Bolan
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - Daly Cantave
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - David Martino
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia; Department of Pediatrics, University of Melbourne, Melbourne, Australia
| | - Melanie R Neeland
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Mimi L K Tang
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia; Department of Pediatrics, University of Melbourne, Melbourne, Australia; Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Australia
| | - Thanh D Dang
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia; Department of Pediatrics, University of Melbourne, Melbourne, Australia
| | - Katrina J Allen
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia; Department of Pediatrics, University of Melbourne, Melbourne, Australia; Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Australia
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19
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Gut memories do not fade: epigenetic regulation of lasting gut homing receptor expression in CD4 + memory T cells. Mucosal Immunol 2017; 10:1443-1454. [PMID: 28198363 DOI: 10.1038/mi.2017.7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 01/17/2017] [Indexed: 02/04/2023]
Abstract
The concept of a "topographical memory" in lymphocytes implies a stable expression of homing receptors mediating trafficking of lymphocytes back to the tissue of initial activation. However, a significant plasticity of the gut-homing receptor α4β7 was found in CD8+ T cells, questioning the concept. We now demonstrate that α4β7 expression in murine CD4+ memory T cells is, in contrast, imprinted and remains stable in the absence of the inducing factor retinoic acid (RA) or other stimuli from mucosal environments. Repetitive rounds of RA treatment enhanced the stability of de novo induced α4β7. A novel enhancer element in the murine Itga4 locus was identified that showed, correlating to stability, selective DNA demethylation in mucosa-seeking memory cells and methylation-dependent transcriptional activity in a reporter gene assay. This implies that epigenetic mechanisms contribute to the stabilization of α4β7 expression. Analogous DNA methylation patterns could be observed in the human ITGA4 locus, suggesting that its epigenetic regulation is conserved between mice and men. These data prove that mucosa-specific homing mediated by α4β7 is imprinted in CD4+ memory T cells, reinstating the validity of the concept of "topographical memory" for mucosal tissues, and imply a critical role of epigenetic mechanisms.
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20
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Wang J, Suárez-Fariñas M, Estrada Y, Parker ML, Greenlees L, Stephens G, Krueger J, Guttman-Yassky E, Howell MD. Identification of unique proteomic signatures in allergic and non-allergic skin disease. Clin Exp Allergy 2017; 47:1456-1467. [DOI: 10.1111/cea.12979] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 05/19/2017] [Indexed: 12/21/2022]
Affiliation(s)
- J. Wang
- MedImmune, LLC; Gaithersburg MD USA
| | - M. Suárez-Fariñas
- Department of Dermatology and the Laboratory for Inflammatory Skin Diseases; Icahn School of Medicine at Mount Sinai Medical Center; New York NY USA
- Department of Population Health Science and Policy; Icahn School of Medicine at Mount Sinai Medical Center; New York NY USA
- Icahn Institute for Genomics and Multiscale Biology at Mount Sinai; Icahn School of Medicine at Mount Sinai; New York NY USA
- Laboratory for Investigative Dermatology; Rockefeller University; New York NY USA
| | - Y. Estrada
- Department of Dermatology and the Laboratory for Inflammatory Skin Diseases; Icahn School of Medicine at Mount Sinai Medical Center; New York NY USA
| | | | | | | | - J. Krueger
- Laboratory for Investigative Dermatology; Rockefeller University; New York NY USA
| | - E. Guttman-Yassky
- Department of Dermatology and the Laboratory for Inflammatory Skin Diseases; Icahn School of Medicine at Mount Sinai Medical Center; New York NY USA
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21
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Epicutaneous sensitization with nematode antigens of fish parasites results in the production of specific IgG and IgE. J Helminthol 2017; 92:403-409. [DOI: 10.1017/s0022149x17000633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AbstractFish consumption plays an important role in the human diet.Hoplias malabaricus, trahira, is a freshwater fish widely appreciated in several Brazilian states and it is frequently infected byContracaecum multipapillatumthird-instar larvae (L3). The aim of the present study was to evaluate the allergenic potential of theC. multipapillatumL3 crude extract (CECM). BALB/c mice were immunized intraperitoneally (ip) with 10 or 50 μg CECM associated with 2 mg of aluminium hydroxide on days 0, 14 and 48. The determination of specific IgG and IgE antibody levels was done after immunization, and the late immunity was evaluated by the intradermal reaction in the ear pavilion. Epicutaneous sensitization was performed in the dorsal region, with antigenic exposure via a Finn-type chamber, containing 100 μg of chicken ovum albumin (OVA) or 100 μg CECM. After the exposures, the specific antibody levels were determined. In the ip immunization, there was a gradual increase in IgG antibody levels, independent of CECM concentration. In relation to IgE production, it was transitory, and immunization with 10 μg was more efficient than that of 50 μg. The same result was observed in the cellular hypersensitivity reaction. In the case of antigen exposure by the epicutaneous route, it was verified that only CECM was able to induce detectable levels of specific IgG and IgE antibodies. In the present study it was demonstrated that both intraperitoneal immunization and epicutaneous contact withC. multipapillatumlarval antigens are potentially capable of inducing allergic sensitization in mice.
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22
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Czarnowicki T, Santamaria-Babí LF, Guttman-Yassky E. Circulating CLA + T cells in atopic dermatitis and their possible role as peripheral biomarkers. Allergy 2017; 72:366-372. [PMID: 27861978 DOI: 10.1111/all.13080] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2016] [Indexed: 12/22/2022]
Abstract
Cutaneous lymphocyte-associated antigen (CLA+ ) T cells are specialized for skin homing and represent the main T-cell population in atopic dermatitis (AD) lesions. CLA+ is expressed on the surface of circulating CD45RO+ memory T cells and most skin-infiltrating T cells. Mechanistic studies and thus treatment advancements are limited by the need of large number of skin biopsies. Circulating CLA+ T cells may be a reliable surrogate marker of the inflammatory events occurring in the skin, and thus, the evaluation of CLA+ T cells in the blood may eliminate the need for skin biopsies. Preliminary work in AD has established that disease-associated T-cell abnormalities can be approached by either a study of skin lesions or activated CLA+ T-cell subsets in peripheral blood. Future studies in adults and children, across different skin disorders, correlating blood and skin phenotypes and determining skin-homing T-cell functional properties are needed to establish whether CLA+ memory subsets can be used as biomarkers and a substitute for skin biopsies. This review summarizes the latest advancements reached on circulating CLA+ in AD and the great potential they harbor in understanding AD mechanisms.
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Affiliation(s)
- T. Czarnowicki
- Department of Dermatology and the Immunology Institute; Icahn School of Medicine at Mount Sinai; New York NY USA
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
| | - L. F. Santamaria-Babí
- Translational Immunology; Department of Cellular Biology, Physiology, and Immunology; Universitat de Barcelona; Barcelona Spain
| | - E. Guttman-Yassky
- Department of Dermatology and the Immunology Institute; Icahn School of Medicine at Mount Sinai; New York NY USA
- Laboratory for Investigative Dermatology; The Rockefeller University; New York NY USA
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23
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Lee CH, Chen JS, Chiu HC, Hong CH, Liu CY, Ta YC, Wang LF. Differential activation behavior of dermal dendritic cells underlies the strain-specific Th1 responses to single epicutaneous immunization. J Dermatol Sci 2016; 84:248-257. [DOI: 10.1016/j.jdermsci.2016.09.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/01/2016] [Accepted: 09/23/2016] [Indexed: 12/13/2022]
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24
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Popple A, Williams J, Maxwell G, Gellatly N, Dearman RJ, Kimber I. T lymphocyte dynamics in methylisothiazolinone-allergic patients. Contact Dermatitis 2016; 75:1-13. [DOI: 10.1111/cod.12600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Amy Popple
- Faculty of Life Sciences; University of Manchester; M13 9PT Manchester UK
| | - Jason Williams
- Contact Dermatitis Investigation Unit; Salford Royal NHS Foundation Trust; Salford M6 8HD Salford UK
| | - Gavin Maxwell
- Unilever Safety and Environmental Assurance Centre; Sharnbrook, Bedford MK44 1LQ Sharnbrook UK
| | - Nichola Gellatly
- Unilever Safety and Environmental Assurance Centre; Sharnbrook, Bedford MK44 1LQ Sharnbrook UK
| | - Rebecca J. Dearman
- Faculty of Life Sciences; University of Manchester; M13 9PT Manchester UK
| | - Ian Kimber
- Faculty of Life Sciences; University of Manchester; M13 9PT Manchester UK
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25
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Czarnowicki T, Esaki H, Gonzalez J, Malajian D, Shemer A, Noda S, Talasila S, Berry A, Gray J, Becker L, Estrada Y, Xu H, Zheng X, Suárez-Fariñas M, Krueger JG, Paller AS, Guttman-Yassky E. Early pediatric atopic dermatitis shows only a cutaneous lymphocyte antigen (CLA)(+) TH2/TH1 cell imbalance, whereas adults acquire CLA(+) TH22/TC22 cell subsets. J Allergy Clin Immunol 2015; 136:941-951.e3. [PMID: 26242300 PMCID: PMC4946641 DOI: 10.1016/j.jaci.2015.05.049] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/13/2015] [Accepted: 05/19/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Identifying differences and similarities between cutaneous lymphocyte antigen (CLA)(+) polarized T-cell subsets in children versus adults with atopic dermatitis (AD) is critical for directing new treatments toward children. OBJECTIVE We sought to compare activation markers and frequencies of skin-homing (CLA(+)) versus systemic (CLA(-)) "polar" CD4 and CD8 T-cell subsets in patients with early pediatric AD, adults with AD, and control subjects. METHODS Flow cytometry was used to measure CD69/inducible costimulator/HLA-DR frequency in memory cell subsets, as well as IFN-γ, IL-13, IL-9, IL-17, and IL-22 cytokines, defining TH1/cytotoxic T (TC) 1, TH2/TC2, TH9/TC9, TH17/TC17, and TH22/TC22 populations in CD4 and CD8 cells, respectively. We compared peripheral blood from 19 children less than 5 years old and 42 adults with well-characterized moderate-to-severe AD, as well as age-matched control subjects (17 children and 25 adults). RESULTS Selective inducible costimulator activation (P < .001) was seen in children. CLA(+) TH2 T cells were markedly expanded in both children and adults with AD compared with those in control subjects, but decreases in CLA(+) TH1 T-cell numbers were greater in children with AD (17% vs 7.4%, P = .007). Unlike in adults, no imbalances were detected in CLA(-) T cells from pediatric patients with AD nor were there altered frequencies of TH22 T cells within the CLA(+) or CLA(-) compartments. Adults with AD had increased frequencies of IL-22-producing CD4 and CD8 T cells within the skin-homing population, compared with controls (9.5% vs 4.5% and 8.6% vs 2.4%, respectively; P < .001), as well as increased HLA-DR activation (P < .01). CONCLUSIONS These data suggest that TH2 activation within skin-homing T cells might drive AD in children and that reduced counterregulation by TH1 T cells might contribute to excess TH2 activation. TH22 "spreading" of AD is not seen in young children and might be influenced by immune development, disease chronicity, or recurrent skin infections.
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Affiliation(s)
- Tali Czarnowicki
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Hitokazu Esaki
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY; Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Juana Gonzalez
- Translational Technology Core Laboratory, Rockefeller University, New York, NY
| | - Dana Malajian
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY; Columbia University College of Physicians and Surgeons, New York, NY
| | - Avner Shemer
- Department of Dermatology, Tel-Hashomer Hospital, Tel Aviv, Israel
| | - Shinji Noda
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Sreya Talasila
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Adam Berry
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Jayla Gray
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Lauren Becker
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Yeriel Estrada
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Hui Xu
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Xiuzhong Zheng
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Mayte Suárez-Fariñas
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY; Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY; Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - James G Krueger
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Amy S Paller
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Emma Guttman-Yassky
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY; Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY.
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Ebel ME, Awe O, Kaplan MH, Kansas GS. Diverse inflammatory cytokines induce selectin ligand expression on murine CD4 T cells via p38α MAPK. THE JOURNAL OF IMMUNOLOGY 2015; 194:5781-8. [PMID: 25941329 DOI: 10.4049/jimmunol.1500485] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 04/02/2015] [Indexed: 01/03/2023]
Abstract
Selectins are glycan-binding adhesion molecules that mediate the initial steps of leukocyte recognition of endothelium. Cytokines control numerous aspects of CD4 Th cell differentiation, but how cytokines control the induction of ligands for E- and P-selectin on Th cell subsets remains poorly understood. Among 20 cytokines that affect Th cell differentiation, we identified six that induce expression of selectin ligands on murine CD4 T cells above the low levels associated with TCR engagement: IL-12, IL-18, IL-27, IL-9, IL-25, and TGF-β1. Collectively, these six cytokines could potentially account for selectin ligand expression on all of the currently defined nonsessile Th cell lineages, including Th1, Th2, Th9, and Th17 cells, as well as regulatory T cells. Induction of selectin ligand expression by each of these six cytokines was almost completely inhibited by pharmacologic inhibition of p38 MAPK, but not other MAPKs, or by conditional genetic deletion of p38α MAPK. Analysis of the expression of key glycosyltransferase genes revealed that p38α signaling was selectively required for induction of Fut7 and Gcnt1 but not for the induction of St3gal4 or St3gal6. Constitutively active MKK6, an immediate upstream activator of p38 MAPK, induced selectin ligand expression equivalent to that of cytokines, and this induction was completely dependent on the expression of p38α. Our results identify the repertoire of cytokines responsible for selectin ligand induction on CD4 T cells and provide a mechanistic link between Th cell development and T cell migration.
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Affiliation(s)
- Mark E Ebel
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Olufolakemi Awe
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; and Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Mark H Kaplan
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; and Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Geoffrey S Kansas
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611;
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Ogunrinade O, Ahn CS, Gergis U, Yassin AH, Magro C. Cutaneous lymphocyte antigen expression loss and PD1 positivity in early cutaneous lesions of rapidly progressive mycosis fungoides. Clin Case Rep 2015; 2:209-18. [PMID: 25614814 PMCID: PMC4302628 DOI: 10.1002/ccr3.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 01/22/2014] [Indexed: 11/22/2022] Open
Abstract
Key Clinical Message It's important to assess cases both clinically and pathologically for factors potentially predictive of an aggressive clinical course. We concluded that the relative immunosuppressive effects of PD1 may contribute to tumor progression while the lack of staining for cutaneous lymphocyte antigen may be an additional factor facilitating distant extracutaneous migration.
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Affiliation(s)
- Olakunle Ogunrinade
- Department of Dermatology, Weill Cornell Medical College New York City, New York, 10065
| | - Christine S Ahn
- Wake Forest School of Medicine Winston Salem, North Carolina, 27157-1090
| | - Usama Gergis
- Department of Internal Medicine, Division of Hematology and Oncology, Weill Cornell Medical College New York City, New York, 10065
| | - Aminah H Yassin
- Long Island University Brooklyn New York City, New York, 11201 ; Department of Pathology and Laboratory Medicine, Weill Cornell Medical College New York City, New York, 10065
| | - Cynthia Magro
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College New York City, New York, 10065
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Zhang BX, Lyu JC, Liu HB, Feng DQ, Zhang DC, Bi XJ, Duan ZW, Ding G. Attenuation of peripheral regulatory T-cell suppression of skin-homing CD8⁺T cells in atopic dermatitis. Yonsei Med J 2015; 56:196-203. [PMID: 25510765 PMCID: PMC4276756 DOI: 10.3349/ymj.2015.56.1.196] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/23/2014] [Accepted: 04/23/2014] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Cutaneous lymphocyte-associated antigen (CLA)-expressing CD8⁺T cells have been known to play an important role in the pathogenesis of atopic dermatitis (AD). However, the mechanisms underlying the loss of self-tolerance remain unclear. Regulatory T cells (Tregs) play a key role in the development of homeostasis in the immune system. We, therefore, hypothesized that a reduced ability of Tregs to inhibit autologous CD8⁺CLA⁺T cells might be underlying mechanism in AD. MATERIALS AND METHODS CD8⁺CLA⁺T cells and Tregs were obtained from the peripheral blood of AD patients and control volunteers. The frequencies of CD8⁺CLA⁺T cells were evaluated. The proliferative responses of CD8⁺CLA⁺T cells were assessed by flow cytometry, and the levels of transforming growth factor-β1 (TGF-β1) and interleukin-10 (IL-10) in culture supernatants were detected by enzyme-linked immunosorbent assay. RESULTS Our results revealed higher frequency and increased expression of perforin and granzyme-B in peripheral CD8⁺CLA⁺T cells in AD, and lower inhibitory ability of Tregs on proliferation of CD8⁺CLA⁺T cells in AD. Meanwhile, the levels of TGF-β1 produced by Tregs were significantly lower in AD, and anti-TGF-β1 abolished such suppression. CONCLUSION The attenuated inhibitory ability of Tregs on hyper-activated autologous CD8⁺CLA⁺T cells, mediated by TGF-β1, plays an important role in the pathogenesis of AD.
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Affiliation(s)
- Bao-Xiang Zhang
- Department of Dermatology, Yidu Central Hospital, Weifang Medical University, Weifang, P.R. China
| | - Jun-Cheng Lyu
- Department of Health Statistics, Public Health College of Weifang Medical University, Weifang, P.R. China
| | - Hai-Bo Liu
- Department of Clinical Laboratory, Yidu Central Hospital, Weifang Medical University, Weifang, P.R. China
| | - Dian-Qin Feng
- Department of Dermatology, Yidu Central Hospital, Weifang Medical University, Weifang, P.R. China
| | - Dian-Cai Zhang
- Department of Dermatology, Yidu Central Hospital, Weifang Medical University, Weifang, P.R. China
| | - Xing-Jie Bi
- Department of Dermatology, Weifang Skin Disease Hospital, Weifang, P.R. China
| | - Zhi-Wu Duan
- Department of Dermatology, Yidu Central Hospital, Weifang Medical University, Weifang, P.R. China
| | - Gang Ding
- Department of Stomatology, Yidu Central Hospital, Weifang Medical University, Weifang, P.R. China.
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Lee CH, Chen JS, Chiu HC, Hong CH, Liu CY, Ta YC, Clausen BE, Ho JC, Wang LF. Dermal dendritic cells, but not Langerhans cells, are critical in murine single epicutaneous sensitization. Exp Dermatol 2014; 24:67-9. [PMID: 25363677 DOI: 10.1111/exd.12583] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2014] [Indexed: 11/29/2022]
Abstract
A murine repeated protein-patch model has been established to study epicutaneous sensitization in atopic dermatitis. This model has shown a predominant Th2 and a weak Th1 response in both BALB/c and C57BL/6 mice. However, Th responses induced in the repeated model are not consistent with the generally accepted theory that BALB/c and C57BL/6 mice are Th2 and Th1 prone and are representatives of human atopy and non-atopy, respectively. In this study, a single protein-patch model was established, which showed in addition to the Th2 response, a remarkable Th1 response in C57BL/6 mice, but not in BALB/c mice. Moreover, using muLangerin-DTR mice, we demonstrated that dermal dendritic cells, but not Langerhans cells, are critical in single epicutaneous sensitization in both strains of mice.
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Affiliation(s)
- Chih-Hung Lee
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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Brough HA, Cousins DJ, Munteanu A, Wong YF, Sudra A, Makinson K, Stephens AC, Arno M, Ciortuz L, Lack G, Turcanu V. IL-9 is a key component of memory TH cell peanut-specific responses from children with peanut allergy. J Allergy Clin Immunol 2014; 134:1329-1338.e10. [PMID: 25112699 DOI: 10.1016/j.jaci.2014.06.032] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 06/15/2014] [Accepted: 06/26/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND Differentiation between patients with peanut allergy (PA) and those with peanut sensitization (PS) who tolerate peanut but have peanut-specific IgE, positive skin prick test responses, or both represents a significant diagnostic difficulty. Previously, gene expression microarrays were successfully used to identify biomarkers and explore immune responses during PA immunotherapy. OBJECTIVE We aimed to characterize peanut-specific responses from patients with PA, subjects with PS, and atopic children without peanut allergy (NA children). METHODS A preliminary exploratory microarray investigation of gene expression in peanut-activated memory TH subsets from 3 children with PA and 3 NA children identified potential PA diagnostic biomarkers. Microarray findings were confirmed by using real-time quantitative PCR in 30 subjects (12 children with PA, 12 children with PS, and 6 NA children). Flow cytometry was used to identify the TH subsets involved. RESULTS Among 12,257 differentially expressed genes, IL9 showed the greatest difference between children with PA and NA children (45.59-fold change, P < .001), followed by IL5 and then IL13. Notably, IL9 allowed the most accurate classification of children with PA and NA children by using a machine-learning approach with recursive feature elimination and the random forest algorithm. Skin- and gut-homing TH cells from donors with PA expressed similar TH2- and TH9-associated genes. Real-time quantitative PCR confirmed that IL9 was the highest differentially expressed gene between children with PA and NA children (23.3-fold change, P < .01) and children with PS (18.5-fold change, P < .05). Intracellular cytokine staining showed that IL-9 and the TH2-specific cytokine IL-5 are produced by distinct TH populations. CONCLUSION In this study IL9 best differentiated between children with PA and children with PS (and atopic NA children). Mutually exclusive production of IL-9 and the TH2-specific cytokine IL-5 suggests that the IL-9-producing cells belong to the recently described TH9 subset.
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Affiliation(s)
- Helen A Brough
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom
| | - David J Cousins
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom; Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Alina Munteanu
- Faculty of Computer Science, University of Iasi, Iasi, Romania
| | - Yuen Fei Wong
- Genomics Centre, King's College London, London, United Kingdom
| | - Asha Sudra
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom
| | - Kerry Makinson
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom
| | - Alick C Stephens
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom
| | - Matthew Arno
- Genomics Centre, King's College London, London, United Kingdom
| | - Liviu Ciortuz
- Faculty of Computer Science, University of Iasi, Iasi, Romania
| | - Gideon Lack
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom
| | - Victor Turcanu
- Division of Asthma, Allergy and Lung Biology, King's College London, and Guys' Hospital, London, United Kingdom; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, and Guys' Hospital, London, United Kingdom.
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Ferran M, Romeu ER, Rincón C, Sagristà M, Giménez Arnau AM, Celada A, Pujol RM, Holló P, Jókai H, Santamaria-Babí LF. Circulating CLA+ T lymphocytes as peripheral cell biomarkers in T-cell-mediated skin diseases. Exp Dermatol 2014; 22:439-42. [PMID: 23800052 DOI: 10.1111/exd.12154] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/16/2013] [Indexed: 02/05/2023]
Abstract
T lymphocytes expressing the CLA antigen constitute a subset of effector memory lymphocytes that are functionally involved in T-cell-mediated cutaneous diseases. Skin-seeking lymphocytes recirculate between inflamed skin and blood during cutaneous inflammation. Many studies in different T-cell-mediated inflammatory cutaneous diseases have clearly related their pathologic mechanisms to CLA+ T cells. Based on common features of these cells in different cutaneous disorders mediated by T cells, we propose that circulating CLA+T cells could constitute very useful peripheral cellular biomarkers for T-cell-mediated skin diseases.
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Affiliation(s)
- Marta Ferran
- Department of Dermatology, Hospital del Mar, Research Group in Inflammatory Dermatologic Diseases, IMIM, Universitat Autònoma de Barcelona, Barcelona, Spain
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Ferran M, Galván AB, Rincón C, Romeu ER, Sacrista M, Barboza E, Giménez-Arnau A, Celada A, Pujol RM, Santamaria-Babí LF. Streptococcus induces circulating CLA(+) memory T-cell-dependent epidermal cell activation in psoriasis. J Invest Dermatol 2013; 133:999-1007. [PMID: 23190888 DOI: 10.1038/jid.2012.418] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Streptococcal throat infection is associated with a specific variant of psoriasis and with HLA-Cw6 expression. In this study, activation of circulating psoriatic cutaneous lymphocyte-associated antigen (CLA)(+) memory T cells cultured together with epidermal cells occurred only when streptococcal throat extracts were added. This triggered the production of Th1, Th17, and Th22 cytokines, as well as epidermal cell mediators (CXCL8, CXCL9, CXCL10, and CXCL11). Streptococcal extracts (SEs) did not induce any activation with either CLA(-) cells or memory T cells cultured together with epidermal cells from healthy subjects. Intradermal injection of activated culture supernatants into mouse skin induced epidermal hyperplasia. SEs also induced activation when we used epidermal cells from nonlesional skin of psoriatic patients with CLA(+) memory T cells. Significant correlations were found between SE induced upregulation of mRNA expression for ifn-γ, il-17, il-22, ip-10, and serum level of antistreptolysin O in psoriatic patients. This study demonstrates the direct involvement of streptococcal infection in pathological mechanisms of psoriasis, such as IL-17 production and epidermal cell activation.
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Affiliation(s)
- Marta Ferran
- Department of Dermatology, Universitat Autònoma de Barcelona, Barcelona, Spain
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Abstract
Skin infiltration of circulating memory T cells with cutaneous tropism is considered one of the pathologic mechanisms in atopic dermatitis (AD). Skin-seeking circulating T lymphocytes can be identified by their expression of the cutaneous lymphocyte-associated antigen on the cell surface. Recent studies have contributed useful new information about the function and recirculation properties of those cells in AD patients. This review integrates the latest findings on peripheral cutaneous lymphocyte-associated antigen memory T cells in AD and highlights the relevance of this cell type and its importance to our understanding of the pathologic mechanisms of AD.
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Concurrent exposure to a dectin-1 agonist suppresses the Th2 response to epicutaneously introduced antigen in mice. J Biomed Sci 2013; 20:1. [PMID: 23286586 PMCID: PMC3563454 DOI: 10.1186/1423-0127-20-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 12/30/2012] [Indexed: 12/12/2022] Open
Abstract
Background Epicutaneous sensitization with protein allergen that induces predominant Th2 responses is an important sensitization route in atopic dermatitis. Fungal components have been shown to modulate Th cell differentiation. However, the effects of fungal components on epicutaneous sensitization are unclear. Results In this study, we showed that co-administration of curdlan, a dectin-1 agonist, during epicutaneous ovalbumin sensitization of BALB/c mice decreased the IL-5 and IL-13 levels in supernatants of lymph node cell ovalbumin reactivation cultures. Mechanistically, curdlan co-administration decreased IL-4 and IL-1β expressions in draining lymph nodes. Curdlan co-administration also lower the migration of langerin+ CD103- epidermal Langerhans cells into draining lymph nodes at 96 hours post-sensitization which might be attributed to decreased expressions of IL-18 and IL-1β in patched skin. Moreover, adoptive transfer of CFSE-labeled transgenic CD4 T cells confirmed that curdlan co-administration decreased the proliferation and IL-4-production of ovalbumin -specific T cells primed by epidermal Langerhans cells. Conclusions These results indicated that concurrent exposure to a dectin-1 agonist suppresses the epicutaneously induced Th2 response by modulating the cytokine expression profiles in draining LNs and the migration of epidermal Langerhans cells. These results highlight the effects of fungal components on epicutaneous allergen sensitization in atopic diseases.
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Fuiano N, Incorvaia C. Dissecting the causes of atopic dermatitis in children: less foods, more mites. Allergol Int 2012; 61:231-43. [PMID: 22361514 DOI: 10.2332/allergolint.11-ra-0371] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 10/07/2011] [Indexed: 12/16/2022] Open
Abstract
Atopic dermatitis (AD) is a common, chronic or chronically relapsing, multifactorial skin disease that mainly occurs in children but affects also adults. AD usually begins early in life and often concerns people with a personal or family history of asthma and allergic rhinitis. AD is characterized by eczematous changes in the epidermis and originates from a late, T-cell mediated reaction associated to the formation and production of memory T-cell of TH2 type, occurrence of homing receptor at skin level and cutaneous lymphocyte-associated (CLA) antigens. Extrinsic or allergic AD, but not intrinsic AD, shows high total serum IgE levels and the presence of specific IgE for environmental and food allergens. A pivotal role in the pathogenesis of AD is played by filaggrin, a protein contained in the granular layer of the epidermis regulating the aggregation of keratin filaments. Mutation in the filaggrin gene causes decreased barrier function of the corny layers of the epidermis. This favours the enter through the skin of environmental allergens, especially the house dust mite, that further facilitates such entering by the proteolytic activity of its major allergen Der p 1. In fact, recent advances suggest that the dust mite, more than foods, is the major cause of allergic AD. As far as the causal diagnosis of AD is concerned, there is notable evidence supporting the capacity of the atopy patch test (APT) to reproduce the pathophysiologic events of AD. This makes APT a valuable diagnostic tool for AD.
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MESH Headings
- Animals
- Antigens, Dermatophagoides/adverse effects
- Antigens, Dermatophagoides/immunology
- Arthropod Proteins/adverse effects
- Arthropod Proteins/immunology
- Child
- Cysteine Endopeptidases/adverse effects
- Cysteine Endopeptidases/immunology
- Dermatitis, Atopic/diagnosis
- Dermatitis, Atopic/etiology
- Dermatitis, Atopic/genetics
- Dermatitis, Atopic/immunology
- Filaggrin Proteins
- Gene-Environment Interaction
- Humans
- Hypersensitivity, Delayed/diagnosis
- Hypersensitivity, Delayed/etiology
- Hypersensitivity, Delayed/genetics
- Hypersensitivity, Delayed/immunology
- Immunologic Memory
- Intermediate Filament Proteins/genetics
- Mutation
- Patch Tests
- Pyroglyphidae/immunology
- Skin/immunology
- Th2 Cells/immunology
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Affiliation(s)
- Nicola Fuiano
- Pediatric Allergy Service, ASL FG, Torremaggiore, Italy.
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Abstract
Allergic inflammation develops in tissues that have large epithelial surface areas that are exposed to the environment, such as the lung, skin and gut. In the steady state, antigen-experienced memory T cells patrol these peripheral tissues to facilitate swift immune responses against invading pathogens. In at least two allergy-prone organs, the skin and the gut, memory T cells are programmed during the initial antigen priming to express trafficking receptors that enable them to preferentially home to these organs. In this review we propose that tissue-specific memory and inflammation-specific T cell trafficking facilitates the development of allergic disease in these organs. We thus review recent advances in our understanding of tissue-specific T cell trafficking and how regulation of T cell trafficking by the chemokine system contributes to allergic inflammation in mouse models and in human allergic diseases of the skin, lung and gut. Inflammation- and tissue-specific T lymphocyte trafficking pathways are currently being targeted as new treatments for non-allergic inflammatory diseases and may yield effective new therapeutics for allergic diseases.
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Chan SMH, Turcanu V, Stephens AC, Fox AT, Grieve AP, Lack G. Cutaneous lymphocyte antigen and α4β7 T-lymphocyte responses are associated with peanut allergy and tolerance in children. Allergy 2012; 67:336-42. [PMID: 22423373 DOI: 10.1111/j.1398-9995.2011.02765.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND It is unclear whether the initial route of allergen exposure in early life could influence the subsequent development of allergy, with cutaneous sensitization leading to peanut allergy (PA), and tolerance induced by oral exposure. The skin- and gastrointestinal (GI)-homing markers, cutaneous lymphocyte antigen (CLA) and α4β7 integrin, are used to determine whether the state of PA correlates with peanut-specific CLA responses, with tolerance associated with predominant α4β7 responses. METHODS CLA+ and α4β7+ memory T cells were isolated and cultured with peanut extract to assess their proliferation. Stimulation indices were compared in peanut allergic and non-allergic (NA) groups, and peanut-specific cytokine production was measured. RESULTS In peanut allergic patients, peanut-specific proliferation predominates in the skin-homing CLA+ subset, whilst peanut-tolerant groups have a mixed CLA/α4β7 response (P = 0.008). Comparison with a control food antigen (ovalbumin) showed that these differences are allergen specific. Cytokine responses showed trends towards Th1 skewing in the GI-homing α4β7+ cells of peanut-tolerant groups and Th2 skewing in the skin-homing CLA+ cells of peanut allergic patients. CONCLUSION The predominance of the CLA+ response to peanut in peanut allergic patients is consistent with the hypothesis that allergic sensitization occurs through the skin. The predominant α4β7+ response in peanut-tolerant groups suggests that allergen exposure through the GI tract induces tolerance.
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Affiliation(s)
| | - V. Turcanu
- King's College London; King's Health Partners; Asthma-UK Centre in Allergic Mechanisms of Asthma; Department of Asthma, Allergy and Respiratory Science; Guy's Hospital; London; UK
| | - A. C. Stephens
- King's College London; King's Health Partners; Asthma-UK Centre in Allergic Mechanisms of Asthma; Department of Asthma, Allergy and Respiratory Science; Guy's Hospital; London; UK
| | - A. T. Fox
- King's College London; King's Health Partners; Asthma-UK Centre in Allergic Mechanisms of Asthma; Department of Asthma, Allergy and Respiratory Science; Guy's Hospital; London; UK
| | | | - G. Lack
- King's College London; King's Health Partners; Asthma-UK Centre in Allergic Mechanisms of Asthma; Department of Asthma, Allergy and Respiratory Science; Guy's Hospital; London; UK
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The cellular orchestra in skin allergy; are differences to lung and nose relevant? Curr Opin Allergy Clin Immunol 2011; 10:443-51. [PMID: 20736733 DOI: 10.1097/aci.0b013e32833d7d48] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW It has been a long lasting question that although a similar peripheral allergen-specific immune response has been observed, why some patients show only atopic dermatitis, rhinitis and asthma alone or their combinations. The answer resides in the propensity of resident tissue cells and local antigen-presenting cells and T cells for developing an allergic inflammatory immune response. Antigen-presenting cells introduce processed allergens to T helper lymphocytes, where a decision of developing different types of T cell immunity is given under the influence of several cytokines, chemokines, costimulatory signals and regulatory T cells. RECENT FINDINGS We focused in this review article on effector T cell subsets, which have been recently described such as Th9, Th17 cells and Th22 cells, which are characterized by their IL-9 and IL-10, IL-17 (or IL-17A) and IL-22 expression, respectively together with other proinflammatory cytokines, which coordinate local tissue inflammation. Both naturally occurring CD4+CD25+ regulatory T (Treg) cells and inducible populations of allergen-specific, IL-10-secreting Treg type 1 cells inhibit allergen-specific effector cells and have been shown to play a central role in the maintenance of peripheral homeostasis and the establishment of controlled immune responses in allergic inflammatory tissues. SUMMARY Better understanding and characterization of newly described effector cell subsets and their interaction between antigen presenting cells and resident tissue cells will enlighten our knowledge on the mechanisms of allergic diseases.
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Antúnez C, Torres M, López S, Rodriguez-Pena R, Blanca M, Mayorga C, Santamaría-Babi L. Calcitonin gene-related peptide modulates interleukin-13 in circulating cutaneous lymphocyte-associated antigen-positive T cells in patients with atopic dermatitis. Br J Dermatol 2009; 161:547-53. [DOI: 10.1111/j.1365-2133.2009.09318.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Werfel T. The role of leukocytes, keratinocytes, and allergen-specific IgE in the development of atopic dermatitis. J Invest Dermatol 2009; 129:1878-91. [PMID: 19357709 DOI: 10.1038/jid.2009.71] [Citation(s) in RCA: 180] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review provides an overview of the inflammatory mechanisms and immunological aspects specific to atopic dermatitis. The review discusses publications on the roles of different T-cell subsets (that is, T helper 1 (Th1), Th2, T-regulatory, and Th17 cells), myeloid and plasmacytoid dendritic cells, and eosinophils. A further focus lies on keratinocyte-T-cell interactions, which may be of particular relevance in eczema. Mechanisms in innate and adaptive immunity that result in susceptibility to skin infections and in hyperreactivity to environmental stimuli, influencing the course and severity of atopic dermatitis, are summarized. Because the Journal of Investigative Dermatology has recently published reviews of specific features of barrier defects, defects in innate immunity, and, in this issue, genetics, these topics are only briefly discussed here in the context of immunology of atopic dermatitis.
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Affiliation(s)
- Thomas Werfel
- Department of Immunodermatology and Allergy Research, Hannover Medical School, Hannover, Germany.
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Saraceno R, Saggini A, Pietroleonardo L, Chimenti S. Infliximab in the treatment of plaque type psoriasis. Clin Cosmet Investig Dermatol 2009; 2:27-37. [PMID: 21436966 PMCID: PMC3047936 DOI: 10.2147/ccid.s3413] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Psoriasis is a chronic and immunomediated skin disease characterized by erythematous scaly plaques. Psoriasis affects approximately 1% to 3% of the Caucasian population. Tumor necrosis factor alpha (TNF-α) is a proinflammatory cytokine that plays a critical role in the pathogenesis of psoriasis. Infliximab is an anti-TNF-α drug widely used for the treatment of plaque type psoriasis and psoriatic arthritis. Controlled clinical trials demonstrated that infliximab is characterized by a high degree of clinical response in moderate to severe plaque psoriasis. Moreover infliximab showed rapid efficacy in nail psoriasis which represents a therapeutic challenge for dermatologists and a relevant source of distress for patients with plaque psoriasis. This anti-TNF-α has an encouraging safety profile, especially as long as physicians are watchful in prevention and early diagnosis of infections and infuse reactions. The efficacy, tolerability and safety profiles suggest infliximab as a suitable anti-psoriatic drug in the long-term treatment of a chronic disease such as plaque-type psoriasis.
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Affiliation(s)
- Rosita Saraceno
- Department of Dermatology, University of Rome Tor Vergata, Rome, Viale Oxford 81, Rome, Italy
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Wang LF, Chen JS, Hsu CJ, Liu CY, Yu JS, Miaw SC. Antigen-driven bystander effect accelerates epicutaneous sensitization with a new protein allergen. J Biomed Sci 2009; 16:28. [PMID: 19272128 PMCID: PMC2656495 DOI: 10.1186/1423-0127-16-28] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Accepted: 03/06/2009] [Indexed: 12/17/2022] Open
Abstract
Exposure to protein allergen epicutaneously, inducing a Th2-dominant immune response, sensitizes the host to the development of atopic disease. Antigen-driven bystander effect demonstrates that polarized T cells could instruct naïve T cells to differentiate into T cells with similar phenotype. In this study, we aimed to determine the contribution of antigen-driven bystander effect on epicutaneous sensitization with a newly introduced protein allergen. BALB/c mice were immunized intraperitoneally with BSA emulsified in alum, known to induce a Th2 response, three weeks before given BSA and OVA epicutaneously. Lymph node cells from these mice restimulated with OVA secreted higher levels IL-4, IL-5 and IL-13 as compared with cells from mice without BSA immunization. In addition, BALB/c mice immunized subcutaneously with BSA emulsified in complete Freund's adjuvant, known to induce a Th1-predominant response, also induced higher Th1 as well as Th2 cytokine response when restimulated with OVA as compared with mice without immunization. We demonstrated that subcutaneous immunization with BSA in CFA induced Th2 as well as Th1 response. The threshold of epicutaneous sensitization to OVA was also reduced, possibly due to increased expressions of IL-4 and IL-10 in the draining lymph nodes during the early phase of sensitization. In conclusion, antigen-driven bystander effect, whether it is of Th1- or Th2-predominant nature, can accelerate epicutaneous sensitization by a newly introduced protein allergen. These results provide a possible explanation for mono- to poly-sensitization spread commonly observed in atopic children.
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Affiliation(s)
- Li-Fang Wang
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
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Chen JS, Chiu HC, Hsu CJ, Liu CY, Hsieh PC, Miaw SC, Yu HS, Wang LF. Low-energy visible light irradiation modulates immune responses induced by epicutaneous sensitization with protein antigen. J Invest Dermatol 2009; 129:2258-64. [PMID: 19242517 DOI: 10.1038/jid.2009.24] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Epicutaneous sensitization has been an important route for protein allergen sensitization in atopic disease. Although the skin is irradiated by sunlight daily, the influence of visible light on epicutaneous sensitization has not been explored. In this study, by using a well-established murine protein-patch model, we show that low-energy visible light (LEVL) irradiation could differentially modulate the predominant Th2 immune response induced by epicutaneous sensitization with protein antigen. When the induced Th2 response was strong, as usually observed in BALB/c mice, LEVL irradiation suppressed the response. In contrast, LEVL irradiation enhanced the weaker Th2 response in C57BL/6 mice. Increased IL-18 and decreased TGF-beta expression in draining lymph nodes after LEVL irradiation was observed in BALB/c mice, but not in C57BL/6 mice. LEVL irradiation also enhanced IL-18 expression in skin and reduced the downregulation of CD24 expression on epidermal Langerhans cells in draining lymph nodes of BALB/c mice. Collectively, these results provide evidence for immunomodulatory effects of LEVL irradiation and will help us develop a useful strategy for prevention of allergen sensitization.
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Affiliation(s)
- Jau-Shiuh Chen
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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Oyoshi MK, He R, Kumar L, Yoon J, Geha RS. Cellular and molecular mechanisms in atopic dermatitis. Adv Immunol 2009; 102:135-226. [PMID: 19477321 DOI: 10.1016/s0065-2776(09)01203-6] [Citation(s) in RCA: 179] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Atopic dermatitis (AD) is a pruritic inflammatory skin disease associated with a personal or family history of allergy. The prevalence of AD is on the rise and estimated at approximately 17% in the USA. The fundamental lesion in AD is a defective skin barrier that results in dry itchy skin, and is aggravated by mechanical injury inflicted by scratching. This allows entry of antigens via the skin and creates a milieu that shapes the immune response to these antigens. This review discusses recent advances in our understanding of the abnormal skin barrier in AD, namely abnormalities in epidermal structural proteins, such as filaggrin, mutated in approximately 15% of patients with AD, epidermal lipids, and epidermal proteases and protease inhibitors. The review also dissects, based on information from mouse models of AD, the contributions of the innate and adaptive immune system to the pathogenesis of AD, including the effect of mechanical skin injury on the polarization of skin dendritic cells, mediated by keratinocyte-derived cytokines such as thymic stromal lymphopoietin (TSLP), IL-6, and IL-1, that results in a Th2-dominated immune response with a Th17 component in acute AD skin lesions and the progressive conversion to a Th1-dominated response in chronic AD skin lesions. Finally, we discuss the mechanisms of susceptibility of AD skin lesions to microbial infections and the role of microbial products in exacerbating skin inflammation in AD. Based on this information, we discuss current and future therapy of this common disease.
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Affiliation(s)
- Michiko K Oyoshi
- Division of Immunology, Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
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Ferran M, Giménez-Arnau A, Bellosillo B, Pujol R, Santamaría-Babi L. Función efectora de linfocitos T CLA+ sobre queratinocitos autólogos en psoriasis. ACTAS DERMO-SIFILIOGRAFICAS 2008. [DOI: 10.1016/s0001-7310(08)76174-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Magro CM, Dyrsen ME. Cutaneous lymphocyte antigen expression in benign and neoplastic cutaneous B- and T-cell lymphoid infiltrates. J Cutan Pathol 2008; 35:1040-9. [DOI: 10.1111/j.1600-0560.2007.00971.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wolfram C, Rasche C, Audring H, Wahls M, Worm M. Isolation and phenotypic characterization of mucosal nasal lymphocytes by direct ex vivo analysis. Eur Arch Otorhinolaryngol 2008; 266:677-83. [PMID: 18766360 DOI: 10.1007/s00405-008-0795-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2008] [Accepted: 08/11/2008] [Indexed: 11/30/2022]
Abstract
Cellular inflammation of the nasal mucosa demonstrates a local immune response which plays an important role in allergic rhinitis. The aim of the present study was to characterize nasal mucosal lymphocytes regarding their activation and differentiation state by direct ex vivo flowcytometric analysis. Lymphocytes from the inferior turbinates were isolated by a mechanical method of preparation and, for comparison, from peripheral blood by Ficoll gradient centrifugation. Patients suffering from rhinitis or difficulty in nasal breathing were divided into an allergic (pollen-allergy, n = 13) and non-allergic group (n = 24). Expression of different T- and B-cell markers was determined by flowcytometric analysis. CD4+ T-cells from the nasal mucosa exhibited a memory phenotype (CD45RO+, 97%), were highly activated (CD69+, 43-73%), and showed low expression of the cutaneous lymphocyte antigen (CLA+, 5%). Nasal CD20+ B-lymphocytes expressed significantly higher levels of mIgE and lower levels of CD23 and CD80 than peripheral B-cells. Subsets of CD80+ (4%) and CD86+ (6%) CD20+ B-lymphocytes were identified in the nasal mucosa. No significant differences between allergic and non-allergic individuals were determined. As expected, the data show profound phenotypical differences between circulating peripheral blood and nasal mucosal lymphocytes. Activated memory lymphocytes are present in the nasal mucosa from allergic, but also non-allergic patients and may indicate to a significant role of a local inflammatory state without systemic criteria for allergy. In our study, we show that direct ex vivo isolation of lymphocytes is practicable method and offers a new technique to examine the local nasal allergic immune response using a multiparametric phenotypical analysis.
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Affiliation(s)
- Christin Wolfram
- Department of Dermatology and Allergy, Allergy-Center-Charité, Medical University Berlin, Campus Charité Mitte, Charitéplatz 1, 10117, Berlin, Germany
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Abstract
Atopic dermatitis (AD) is a highly pruritic, chronic, and relapsing inflammatory skin disease. Recent interest in AD has been sparked by reports of its increasing prevalence and its contribution to increasing health care costs. A precise understanding of immunologic mechanisms is crucial for the development of effective treatment strategies for AD. Various studies reveal that AD has a multifactorial cause with the activation of complex immunologic and inflammatory pathways. This review will discuss cellular-mediated immunological pathomechanisms of AD. Emphasis will be given to the role played by T cells, antigen-presenting cells, eosinophils, and keratinocytes. We also examine the immunological effect of superantigens on various inflammatory cells including T regulatory cells.
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Affiliation(s)
- Liang-Shiou Ou
- Division of Allergy, Asthma and Rheumatology Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung University, 5, Fu-Hsin Street, Kueishan, Taoyuan, Taiwan, Republic of China.
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