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Sollid LM. Tolerance-inducing therapies in coeliac disease - mechanisms, progress and future directions. Nat Rev Gastroenterol Hepatol 2024; 21:335-347. [PMID: 38336920 DOI: 10.1038/s41575-024-00895-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/08/2024] [Indexed: 02/12/2024]
Abstract
Coeliac disease is an autoinflammatory condition caused by immune reactions to cereal gluten proteins. Currently, the only available treatment for the condition is a lifelong avoidance of gluten proteins in the diet. There is an unmet need for alternative therapies. Coeliac disease has a strong association with certain HLA-DQ allotypes (DQ2.5, DQ2.2 and DQ8), and these disease-associated HLA-DQ molecules present deamidated gluten peptides to gluten-specific CD4+ T cells. The gluten-specific CD4+ T cells are the drivers of the immune reactions leading to coeliac disease. Once established, the clonotypes of gluten-specific CD4+ T cells persist for decades, explaining why patients must adhere to a gluten-free diet for life. Given the key pathogenic role of gluten-specific CD4+ T cells, tolerance-inducing therapies that target these T cells are attractive for treatment of the disorder. Lessons learned from coeliac disease might provide clues for treatment of other HLA-associated diseases for which the disease-driving antigens are unknown. Thus, intensive efforts have been and are currently implemented to bring an effective tolerance-inducing therapy for coeliac disease. This Review discusses mechanisms of the various approaches taken, summarizing the progress made, and highlights future directions in this field.
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Affiliation(s)
- Ludvig M Sollid
- Norwegian Coeliac Disease Research Centre, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
- Department of Immunology, Oslo University Hospital, Oslo, Norway.
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2
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Abadie V, Han A, Jabri B, Sollid LM. New Insights on Genes, Gluten, and Immunopathogenesis of Celiac Disease. Gastroenterology 2024:S0016-5085(24)00478-5. [PMID: 38670280 DOI: 10.1053/j.gastro.2024.03.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/10/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024]
Abstract
Celiac disease (CeD) is a gluten-induced enteropathy that develops in genetically susceptible individuals upon consumption of cereal gluten proteins. It is a unique and complex immune disorder to study, as the driving antigen is known and the tissue targeted by the immune reaction can be interrogated. This review integrates findings gained from genetic, biochemical, and immunologic studies, which together have revealed mechanisms of gluten peptide modification and HLA binding, thereby enabling a maladapted anti-gluten immune response. Observations in human samples combined with experimental mouse models have revealed that the gluten-induced immune response involves CD4+ T cells, cytotoxic CD8+ T cells, and B cells; their cross-talks are critical for the tissue-damaging response. The emergence of high-throughput technologies is increasing our understanding of the phenotype, location, and presumably function of the gluten-specific cells, which are all required to identify novel therapeutic targets and strategies for CeD.
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Affiliation(s)
- Valérie Abadie
- Department of Medicine, The University of Chicago, Chicago, Illinois; Section of Gastroenterology, Nutrition and Hepatology, The University of Chicago, Chicago, Illinois; Committee on Immunology, The University of Chicago, Chicago, Illinois.
| | - Arnold Han
- Columbia Center for Translational Immunology, Columbia University, New York, New York; Department of Microbiology and Immunology, Columbia University, New York, New York; Department of Medicine, Digestive and Liver Diseases, Columbia University, New York, New York; Department of Medicine, Digestive and Liver Diseases, Columbia University, New York, New York
| | - Bana Jabri
- Department of Medicine, The University of Chicago, Chicago, Illinois; Section of Gastroenterology, Nutrition and Hepatology, The University of Chicago, Chicago, Illinois; Committee on Immunology, The University of Chicago, Chicago, Illinois; Department of Pathology, University of Chicago, Chicago, Illinois; Department of Pediatrics, University of Chicago, Chicago, Illinois
| | - Ludvig M Sollid
- Norwegian Coeliac Disease Research Centre, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Immunology, Oslo University Hospital-Rikshospitalet, Oslo, Norway
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Skariah N, James OJ, Swamy M. Signalling mechanisms driving homeostatic and inflammatory effects of interleukin-15 on tissue lymphocytes. DISCOVERY IMMUNOLOGY 2024; 3:kyae002. [PMID: 38405398 PMCID: PMC10883678 DOI: 10.1093/discim/kyae002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/19/2023] [Accepted: 01/26/2024] [Indexed: 02/27/2024]
Abstract
There is an intriguing dichotomy in the function of cytokine interleukin-15-at low levels, it is required for the homeostasis of the immune system, yet when it is upregulated in response to pathogenic infections or in autoimmunity, IL-15 drives inflammation. IL-15 associates with the IL-15Rα within both myeloid and non-haematopoietic cells, where IL-15Rα trans-presents IL-15 in a membrane-bound form to neighboring cells. Alongside homeostatic maintenance of select lymphocyte populations such as NK cells and tissue-resident T cells, when upregulated, IL-15 also promotes inflammatory outcomes by driving effector function and cytotoxicity in NK cells and T cells. As chronic over-expression of IL-15 can lead to autoimmunity, IL-15 expression is tightly regulated. Thus, blocking dysregulated IL-15 and its downstream signalling pathways are avenues for immunotherapy. In this review we discuss the molecular pathways involved in IL-15 signalling and how these pathways contribute to both homeostatic and inflammatory functions in IL-15-dependent mature lymphoid populations, focusing on innate, and innate-like lymphocytes in tissues.
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Affiliation(s)
- Neema Skariah
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Olivia J James
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Mahima Swamy
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
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4
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Hada A, Li L, Kandel A, Jin Y, Xiao Z. Characterization of Bovine Intraepithelial T Lymphocytes in the Gut. Pathogens 2023; 12:1173. [PMID: 37764981 PMCID: PMC10535955 DOI: 10.3390/pathogens12091173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Intraepithelial T lymphocytes (T-IELs), which constitute over 50% of the total T lymphocytes in the animal, patrol the mucosal epithelial lining to defend against pathogen invasion while maintaining gut homeostasis. In addition to expressing T cell markers such as CD4 and CD8, T-IELs display T cell receptors (TCR), including either TCRαβ or TCRγδ. Both humans and mice share similar T-IEL subsets: TCRγδ+, TCRαβ+CD8αα+, TCRαβ+CD4+, and TCRαβ+CD8αβ+. Among these subsets, human T-IELs are predominantly TCRαβ+ (over 80%), whereas those in mice are mostly TCRγδ+ (~60%). Of note, the majority of the TCRγδ+ subset expresses CD8αα in both species. Although T-IELs have been extensively studied in humans and mice, their profiles in cattle have not been well examined. Our study is the first to characterize bovine T-IELs using flow cytometry, where we identified several distinct features. The percentage of TCRγδ+ was comparable to that of TCRαβ+ T-IELs (both ~50% of CD3+), and the majority of bovine TCRγδ+ T-IELs did not express CD8 (CD8-) (above 60%). Furthermore, about 20% of TCRαβ+ T-IELs were CD4+CD8αβ+, and the remaining TCRαβ+ T-IELs were evenly distributed between CD4+ and CD8αβ+ (~40% of TCRαβ+ T-IELs each) with no TCRαβ+CD8αα+ identified. Despite these unique properties, bovine T-IELs, similar to those in humans and mice, expressed a high level of CD69, an activation and tissue-retention marker, and a low level of CD62L, a lymphoid adhesion marker. Moreover, bovine T-IELs produced low levels of inflammatory cytokines such as IFNγ and IL17A, and secreted small amounts of the immune regulatory cytokine TGFβ1. Hence, bovine T-IELs' composition largely differs from that of human and mouse, with the dominance of the CD8- population among TCRγδ+ T-IELs, the substantial presence of TCRαβ+CD4+CD8αβ+ cells, and the absence of TCRαβ+CD8αα+ T-IELs. These results provide the groundwork for conducting future studies to examine how bovine T-IELs respond to intestinal pathogens and maintain the integrity of the gut epithelial barrier in animals.
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Affiliation(s)
| | | | | | | | - Zhengguo Xiao
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742, USA; (A.H.); (L.L.); (A.K.); (Y.J.)
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Kornberg A, Botella T, Moon CS, Rao S, Gelbs J, Cheng L, Miller J, Bacarella AM, García-Vilas JA, Vargas J, Yu X, Krupska I, Bush E, Garcia-Carrasquillo R, Lebwohl B, Krishnareddy S, Lewis S, Green PH, Bhagat G, Yan KS, Han A. Gluten induces rapid reprogramming of natural memory αβ and γδ intraepithelial T cells to induce cytotoxicity in celiac disease. Sci Immunol 2023; 8:eadf4312. [PMID: 37450575 PMCID: PMC10481382 DOI: 10.1126/sciimmunol.adf4312] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 05/26/2023] [Indexed: 07/18/2023]
Abstract
Celiac disease (CD) is an autoimmune disease in which intestinal inflammation is induced by dietary gluten. The means through which gluten-specific CD4+ T cell activation culminates in intraepithelial T cell (T-IEL)-mediated intestinal damage remain unclear. Here, we performed multiplexed single-cell analysis of intestinal and gluten-induced peripheral blood T cells from patients in different CD states and healthy controls. Untreated, active, and potential CD were associated with an enrichment of activated intestinal T cell populations, including CD4+ follicular T helper (TFH) cells, regulatory T cells (Tregs), and natural CD8+ αβ and γδ T-IELs. Natural CD8+ αβ and γδ T-IELs expressing activating natural killer cell receptors (NKRs) exhibited a distinct TCR repertoire in CD and persisted in patients on a gluten-free diet without intestinal inflammation. Our data further show that NKR-expressing cytotoxic cells, which appear to mediate intestinal damage in CD, arise from a distinct NKR-expressing memory population of T-IELs. After gluten ingestion, both αβ and γδ T cell clones from this memory population of T-IELs circulated systemically along with gluten-specific CD4+ T cells and assumed a cytotoxic and activating NKR-expressing phenotype. Collectively, these findings suggest that cytotoxic T cells in CD are rapidly mobilized in parallel with gluten-specific CD4+ T cells after gluten ingestion.
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Affiliation(s)
- Adam Kornberg
- Columbia Center for Translational Immunology, Columbia University; New York, NY
- Department of Microbiology and Immunology, Columbia University; New York, NY
| | - Theo Botella
- Columbia Center for Human Development, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Department of Genetics and Development, Columbia University; New York, NY
| | - Christine S. Moon
- Columbia Center for Translational Immunology, Columbia University; New York, NY
- Columbia Center for Human Development, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Department of Genetics and Development, Columbia University; New York, NY
| | - Samhita Rao
- Columbia Center for Translational Immunology, Columbia University; New York, NY
- Department of Microbiology and Immunology, Columbia University; New York, NY
| | - Jared Gelbs
- Columbia Center for Translational Immunology, Columbia University; New York, NY
- Department of Pediatrics, Columbia University; New York, NY
| | - Liang Cheng
- Columbia Center for Human Development, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Department of Genetics and Development, Columbia University; New York, NY
| | - Jonathan Miller
- Columbia Center for Human Development, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Department of Genetics and Development, Columbia University; New York, NY
| | | | - Javier A. García-Vilas
- Columbia Center for Translational Immunology, Columbia University; New York, NY
- Department of Microbiology and Immunology, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
| | - Justin Vargas
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Celiac Disease Center, Columbia University; New York, NY
| | - Xuechen Yu
- Celiac Disease Center, Columbia University; New York, NY
| | - Izabela Krupska
- Department of Systems Biology, Columbia University; New York, NY
| | - Erin Bush
- Department of Systems Biology, Columbia University; New York, NY
| | | | - Benjamin Lebwohl
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Celiac Disease Center, Columbia University; New York, NY
| | - Suneeta Krishnareddy
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Celiac Disease Center, Columbia University; New York, NY
| | - Suzanne Lewis
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Celiac Disease Center, Columbia University; New York, NY
| | - Peter H.R. Green
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Celiac Disease Center, Columbia University; New York, NY
| | - Govind Bhagat
- Celiac Disease Center, Columbia University; New York, NY
- Department of Pathology and Cell Biology, Columbia University; New York, NY
| | - Kelley S. Yan
- Columbia Center for Human Development, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Department of Genetics and Development, Columbia University; New York, NY
| | - Arnold Han
- Columbia Center for Translational Immunology, Columbia University; New York, NY
- Department of Microbiology and Immunology, Columbia University; New York, NY
- Department of Medicine, Digestive and Liver Diseases, Columbia University; New York, NY
- Celiac Disease Center, Columbia University; New York, NY
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Abstract
The design and use of mouse models that reproduce key features of human diseases are critical to advance our understanding of the pathogenesis of autoimmune diseases and to test new therapeutic strategies. Celiac disease is a unique organ-specific autoimmune-like disorder occurring in genetically susceptible individuals carrying HLA-DQ2 or HLA-DQ8 molecules who consume gluten. The key histological characteristic of the disease in humans is the destruction of the lining of the small intestine, a feature that has been difficult to reproduce in immunocompetent animal models. This unit describes the DQ8-Dd -villin-IL-15 transgenic mouse model of CeD, which was engineered based on the knowledge acquired from studying CeD patients' intestinal samples, and which represents the first animal model that develops villous atrophy in an HLA- and gluten-dependent manner without administration of any adjuvant. We provide detailed protocols for inducing and monitoring intestinal tissue damage, evaluating the cytotoxic properties of intraepithelial lymphocytes that mediate enterocyte lysis, and assessing the activation of the enzyme transglutaminase 2, which contributes to the generation of highly immunogenic gluten peptides. Detailed protocols to prepare pepsin-trypsin digested gliadin (PT-gliadin) or chymotrypsin-digested gliadin (CT-gliadin), which allow antibody detection against native or deamidated gluten peptides, are also provided in this unit. © 2022 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Induction of celiac-like disease in DQ8-Dd -villin-IL-15tg mice Basic Protocol 2: Histological assessment of villous atrophy Support Protocol 1: Morphometric assessment of villous/crypt ratio Support Protocol 2: Evaluation of epithelial cells renewal Support Protocol 3: Evaluation of the density of intraepithelial lymphocytes Basic Protocol 3: Analysis of cytotoxic intraepithelial lymphocytes Basic Protocol 4: Transglutaminase 2 activation and measurement of antibodies against native and deamidated gluten peptides Support Protocol 4: Preparation of CT-gliadin Support Protocol 5: Preparation of PT-gliadin.
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Affiliation(s)
- Valérie Abadie
- Department of Medicine, University of Chicago, Chicago, Illinois
- Celiac Disease Center, University of Chicago, Chicago, Illinois
- Section of Gastroenterology, Hepatology and Nutrition, University of Chicago, Chicago, Illinois
| | - Chaitan Khosla
- Department of Chemistry, Stanford University, Stanford, California
- Department of Chemical Engineering, Stanford University, Stanford, California
- Stanford ChEM-H, Stanford University, Stanford, California
| | - Bana Jabri
- Department of Medicine, University of Chicago, Chicago, Illinois
- Celiac Disease Center, University of Chicago, Chicago, Illinois
- Section of Gastroenterology, Hepatology and Nutrition, University of Chicago, Chicago, Illinois
- Committee on Immunology, University of Chicago, Chicago, Illinois
- Department of Pathology, University of Chicago, Chicago, Illinois
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7
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Uniken Venema WTC, Ramírez-Sánchez AD, Bigaeva E, Withoff S, Jonkers I, McIntyre RE, Ghouraba M, Raine T, Weersma RK, Franke L, Festen EAM, van der Wijst MGP. Gut mucosa dissociation protocols influence cell type proportions and single-cell gene expression levels. Sci Rep 2022; 12:9897. [PMID: 35701452 PMCID: PMC9197976 DOI: 10.1038/s41598-022-13812-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/27/2022] [Indexed: 01/15/2023] Open
Abstract
Single-cell RNA sequencing (scRNA-seq) has revolutionized the study of the cellular landscape of organs. Most single-cell protocols require fresh material, which limits sample size per experiment, and consequently, introduces batch effects. This is especially true for samples acquired through complex medical procedures, such as intestinal mucosal biopsies. Moreover, the tissue dissociation procedure required for obtaining single cells is a major source of noise; different dissociation procedures applied to different compartments of the tissue induce artificial gene expression differences between cell subsets. To overcome these challenges, we have developed a one-step dissociation protocol and demonstrated its use on cryopreserved gut mucosal biopsies. Using flow cytometry and scRNA-seq analysis, we compared this one-step dissociation protocol with the current gold standard, two-step collagenase digestion, and an adaptation of a recently published alternative, three-step cold-active Bacillus licheniformus protease digestion. Both cell viability and cell type composition were comparable between the one-step and two-step collagenase dissociation, with the former being more time-efficient. The cold protease digestion resulted in equal cell viability, but better preserves the epithelial cell types. Consequently, to analyze the rarer cell types, such as glial cells, larger total biopsy cell numbers are required as input material. The multi-step protocols affected cell types spanning multiple compartments differently. In summary, we show that cryopreserved gut mucosal biopsies can be used to overcome the logistical challenges and batch effects in large scRNA-seq studies. Furthermore, we demonstrate that using cryopreserved biopsies digested using a one-step collagenase protocol enables large-scale scRNA-seq, FACS, organoid generation and intraepithelial lymphocyte expansion.
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Affiliation(s)
- Werna T C Uniken Venema
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Aarón D Ramírez-Sánchez
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Emilia Bigaeva
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Sebo Withoff
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Iris Jonkers
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | | | - Tim Raine
- Department of Gastroenterology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Rinse K Weersma
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Lude Franke
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Eleonora A M Festen
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Monique G P van der Wijst
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
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Beneficial Role of Microbial Transglutaminase in the Pathogenetic Mechanisms of Coeliac Disease. J Pediatr Gastroenterol Nutr 2022; 74:728-733. [PMID: 35442226 DOI: 10.1097/mpg.0000000000003451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Coeliac disease (CD) is caused by immunological intolerance to wheat gluten and related proteins of rye and barley. Consequently, gluten-free (GF) products have been developed but technological implementation is required to improve their intrinsic rheological properties. One alternative for increasing the functional properties of GF foodstuff is the incorporation of microbial transglutaminase (mTG), which allows for the cross-linking of proteins that can substitute for the gluten network in the bakery industry. mTG has been, however, suggested to mimic tissue transglutaminase and to be immunogenic in CD patients. Recently, both mTG and gliadin were found to be transported to the endoplasmic reticulum of enterocytes, suggesting cross-presentation and potential interaction with immune cells in CD. Although pathogenetic activity of mTG has not been found to date, these data naturally raise concerns among clinicians and patients about the use of mTG as a food additive. On the contrary, different studies have shown that treatment with mTG was effective in reducing the inflammatory immune response of gluten in CD. In this article, we take advantage of recent advances in gut physiology and CD pathogenesis to revise the literature data on mTG. An updated and unbiased overview of the role of mTG in this pathology allowed us to definitively highlight the beneficial use of this food additive by CD patients.
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Hue SSS, Ng SB, Wang S, Tan SY. Cellular Origins and Pathogenesis of Gastrointestinal NK- and T-Cell Lymphoproliferative Disorders. Cancers (Basel) 2022; 14:2483. [PMID: 35626087 PMCID: PMC9139583 DOI: 10.3390/cancers14102483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/08/2022] [Accepted: 05/13/2022] [Indexed: 11/25/2022] Open
Abstract
The intestinal immune system, which must ensure appropriate immune responses to both pathogens and commensal microflora, comprises innate lymphoid cells and various T-cell subsets, including intra-epithelial lymphocytes (IELs). An example of innate lymphoid cells is natural killer cells, which may be classified into tissue-resident, CD56bright NK-cells that serve a regulatory function and more mature, circulating CD56dim NK-cells with effector cytolytic properties. CD56bright NK-cells in the gastrointestinal tract give rise to indolent NK-cell enteropathy and lymphomatoid gastropathy, as well as the aggressive extranodal NK/T cell lymphoma, the latter following activation by EBV infection and neoplastic transformation. Conventional CD4+ TCRαβ+ and CD8αβ+ TCRαβ+ T-cells are located in the lamina propria and the intraepithelial compartment of intestinal mucosa as type 'a' IELs. They are the putative cells of origin for CD4+ and CD8+ indolent T-cell lymphoproliferative disorders of the gastrointestinal tract and intestinal T-cell lymphoma, NOS. In addition to such conventional T-cells, there are non-conventional T-cells in the intra-epithelial compartment that express CD8αα and innate lymphoid cells that lack TCRs. The central feature of type 'b' IELs is the expression of CD8αα homodimers, seen in monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), which primarily arises from both CD8αα+ TCRαβ+ and CD8αα+ TCRγδ+ IELs. EATL is the other epitheliotropic T-cell lymphoma in the GI tract, a subset of which arises from the expansion and reprograming of intracytoplasmic CD3+ innate lymphoid cells, driven by IL15 and mutations of the JAK-STAT pathway.
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Affiliation(s)
- Susan Swee-Shan Hue
- Department of Pathology, National University Hospital, Singapore 119074, Singapore; (S.S.-S.H.); (S.W.)
| | - Siok-Bian Ng
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore;
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Shi Wang
- Department of Pathology, National University Hospital, Singapore 119074, Singapore; (S.S.-S.H.); (S.W.)
| | - Soo-Yong Tan
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore;
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10
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Cossarizza A, Chang HD, Radbruch A, Abrignani S, Addo R, Akdis M, Andrä I, Andreata F, Annunziato F, Arranz E, Bacher P, Bari S, Barnaba V, Barros-Martins J, Baumjohann D, Beccaria CG, Bernardo D, Boardman DA, Borger J, Böttcher C, Brockmann L, Burns M, Busch DH, Cameron G, Cammarata I, Cassotta A, Chang Y, Chirdo FG, Christakou E, Čičin-Šain L, Cook L, Corbett AJ, Cornelis R, Cosmi L, Davey MS, De Biasi S, De Simone G, del Zotto G, Delacher M, Di Rosa F, Di Santo J, Diefenbach A, Dong J, Dörner T, Dress RJ, Dutertre CA, Eckle SBG, Eede P, Evrard M, Falk CS, Feuerer M, Fillatreau S, Fiz-Lopez A, Follo M, Foulds GA, Fröbel J, Gagliani N, Galletti G, Gangaev A, Garbi N, Garrote JA, Geginat J, Gherardin NA, Gibellini L, Ginhoux F, Godfrey DI, Gruarin P, Haftmann C, Hansmann L, Harpur CM, Hayday AC, Heine G, Hernández DC, Herrmann M, Hoelsken O, Huang Q, Huber S, Huber JE, Huehn J, Hundemer M, Hwang WYK, Iannacone M, Ivison SM, Jäck HM, Jani PK, Keller B, Kessler N, Ketelaars S, Knop L, Knopf J, Koay HF, Kobow K, Kriegsmann K, Kristyanto H, Krueger A, Kuehne JF, Kunze-Schumacher H, Kvistborg P, Kwok I, Latorre D, Lenz D, Levings MK, Lino AC, Liotta F, Long HM, Lugli E, MacDonald KN, Maggi L, Maini MK, Mair F, Manta C, Manz RA, Mashreghi MF, Mazzoni A, McCluskey J, Mei HE, Melchers F, Melzer S, Mielenz D, Monin L, Moretta L, Multhoff G, Muñoz LE, Muñoz-Ruiz M, Muscate F, Natalini A, Neumann K, Ng LG, Niedobitek A, Niemz J, Almeida LN, Notarbartolo S, Ostendorf L, Pallett LJ, Patel AA, Percin GI, Peruzzi G, Pinti M, Pockley AG, Pracht K, Prinz I, Pujol-Autonell I, Pulvirenti N, Quatrini L, Quinn KM, Radbruch H, Rhys H, Rodrigo MB, Romagnani C, Saggau C, Sakaguchi S, Sallusto F, Sanderink L, Sandrock I, Schauer C, Scheffold A, Scherer HU, Schiemann M, Schildberg FA, Schober K, Schoen J, Schuh W, Schüler T, Schulz AR, Schulz S, Schulze J, Simonetti S, Singh J, Sitnik KM, Stark R, Starossom S, Stehle C, Szelinski F, Tan L, Tarnok A, Tornack J, Tree TIM, van Beek JJP, van de Veen W, van Gisbergen K, Vasco C, Verheyden NA, von Borstel A, Ward-Hartstonge KA, Warnatz K, Waskow C, Wiedemann A, Wilharm A, Wing J, Wirz O, Wittner J, Yang JHM, Yang J. Guidelines for the use of flow cytometry and cell sorting in immunological studies (third edition). Eur J Immunol 2021; 51:2708-3145. [PMID: 34910301 PMCID: PMC11115438 DOI: 10.1002/eji.202170126] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The third edition of Flow Cytometry Guidelines provides the key aspects to consider when performing flow cytometry experiments and includes comprehensive sections describing phenotypes and functional assays of all major human and murine immune cell subsets. Notably, the Guidelines contain helpful tables highlighting phenotypes and key differences between human and murine cells. Another useful feature of this edition is the flow cytometry analysis of clinical samples with examples of flow cytometry applications in the context of autoimmune diseases, cancers as well as acute and chronic infectious diseases. Furthermore, there are sections detailing tips, tricks and pitfalls to avoid. All sections are written and peer-reviewed by leading flow cytometry experts and immunologists, making this edition an essential and state-of-the-art handbook for basic and clinical researchers.
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Affiliation(s)
- Andrea Cossarizza
- Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Hyun-Dong Chang
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Institute for Biotechnology, Technische Universität, Berlin, Germany
| | - Andreas Radbruch
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Sergio Abrignani
- Istituto Nazionale di Genetica Molecolare Romeo ed Enrica Invernizzi (INGM), Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Richard Addo
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Immanuel Andrä
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany
| | - Francesco Andreata
- Division of Immunology, Transplantation and Infectious Diseases, IRCSS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Annunziato
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Eduardo Arranz
- Mucosal Immunology Lab, Unidad de Excelencia Instituto de Biomedicina y Genética Molecular de Valladolid (IBGM, Universidad de Valladolid-CSIC), Valladolid, Spain
| | - Petra Bacher
- Institute of Immunology, Christian-Albrechts Universität zu Kiel & Universitätsklinik Schleswig-Holstein, Kiel, Germany
- Institute of Clinical Molecular Biology Christian-Albrechts Universität zu Kiel, Kiel, Germany
| | - Sudipto Bari
- Division of Medical Sciences, National Cancer Centre Singapore, Singapore
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Vincenzo Barnaba
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, Rome, Italy
- Center for Life Nano & Neuro Science@Sapienza, Istituto Italiano di Tecnologia (IIT), Rome, Italy
- Istituto Pasteur - Fondazione Cenci Bolognetti, Rome, Italy
| | | | - Dirk Baumjohann
- Medical Clinic III for Oncology, Hematology, Immuno-Oncology and Rheumatology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Cristian G. Beccaria
- Division of Immunology, Transplantation and Infectious Diseases, IRCSS San Raffaele Scientific Institute, Milan, Italy
| | - David Bernardo
- Mucosal Immunology Lab, Unidad de Excelencia Instituto de Biomedicina y Genética Molecular de Valladolid (IBGM, Universidad de Valladolid-CSIC), Valladolid, Spain
- Centro de Investigaciones Biomédicas en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Dominic A. Boardman
- Department of Surgery, The University of British Columbia, Vancouver, Canada
- BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Jessica Borger
- Department of Immunology and Pathology, Monash University, Melbourne, Victoria, Australia
| | - Chotima Böttcher
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Leonie Brockmann
- Department of Microbiology & Immunology, Columbia University, New York City, USA
| | - Marie Burns
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Dirk H. Busch
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany
- German Center for Infection Research (DZIF), Munich, Germany
| | - Garth Cameron
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
- Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Ilenia Cammarata
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, Rome, Italy
| | - Antonino Cassotta
- Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
| | - Yinshui Chang
- Medical Clinic III for Oncology, Hematology, Immuno-Oncology and Rheumatology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Fernando Gabriel Chirdo
- Instituto de Estudios Inmunológicos y Fisiopatológicos - IIFP (UNLP-CONICET), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Eleni Christakou
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King’s College London, UK
- National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
| | - Luka Čičin-Šain
- Department of Viral Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Laura Cook
- BC Children’s Hospital Research Institute, Vancouver, Canada
- Department of Medicine, The University of British Columbia, Vancouver, Canada
| | - Alexandra J. Corbett
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Rebecca Cornelis
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Lorenzo Cosmi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Martin S. Davey
- Infection and Immunity Program, Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Sara De Biasi
- Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Gabriele De Simone
- Laboratory of Translational Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | | | - Michael Delacher
- Institute for Immunology, University Medical Center Mainz, Mainz, Germany
- Research Centre for Immunotherapy, University Medical Center Mainz, Mainz, Germany
| | - Francesca Di Rosa
- Institute of Molecular Biology and Pathology, National Research Council of Italy (CNR), Rome, Italy
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | - James Di Santo
- Innate Immunity Unit, Department of Immunology, Institut Pasteur, Paris, France
- Inserm U1223, Paris, France
| | - Andreas Diefenbach
- Laboratory of Innate Immunity, Department of Microbiology, Infectious Diseases and Immunology, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
- Mucosal and Developmental Immunology, German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Jun Dong
- Cell Biology, German Rheumatism Research Center Berlin (DRFZ), An Institute of the Leibniz Association, Berlin, Germany
| | - Thomas Dörner
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Department of Medicine/Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Regine J. Dress
- Institute of Systems Immunology, Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Charles-Antoine Dutertre
- Institut National de la Sante Et de la Recherce Medicale (INSERM) U1015, Equipe Labellisee-Ligue Nationale contre le Cancer, Villejuif, France
| | - Sidonia B. G. Eckle
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Pascale Eede
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Maximilien Evrard
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, Singapore, Singapore
| | - Christine S. Falk
- Institute of Transplant Immunology, Hannover Medical School, Hannover, Germany
| | - Markus Feuerer
- Regensburg Center for Interventional Immunology (RCI), Regensburg, Germany
- Chair for Immunology, University Regensburg, Regensburg, Germany
| | - Simon Fillatreau
- Institut Necker Enfants Malades, INSERM U1151-CNRS, UMR8253, Paris, France
- Université de Paris, Paris Descartes, Faculté de Médecine, Paris, France
- AP-HP, Hôpital Necker Enfants Malades, Paris, France
| | - Aida Fiz-Lopez
- Mucosal Immunology Lab, Unidad de Excelencia Instituto de Biomedicina y Genética Molecular de Valladolid (IBGM, Universidad de Valladolid-CSIC), Valladolid, Spain
| | - Marie Follo
- Department of Medicine I, Lighthouse Core Facility, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Gemma A. Foulds
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
- Centre for Health, Ageing and Understanding Disease (CHAUD), School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Julia Fröbel
- Immunology of Aging, Leibniz Institute on Aging – Fritz Lipmann Institute, Jena, Germany
| | - Nicola Gagliani
- Department of Medicine, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany
| | - Giovanni Galletti
- Laboratory of Translational Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Anastasia Gangaev
- Division of Molecular Oncology and Immunology, the Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Natalio Garbi
- Institute of Molecular Medicine and Experimental Immunology, Faculty of Medicine, University of Bonn, Germany
| | - José Antonio Garrote
- Mucosal Immunology Lab, Unidad de Excelencia Instituto de Biomedicina y Genética Molecular de Valladolid (IBGM, Universidad de Valladolid-CSIC), Valladolid, Spain
- Laboratory of Molecular Genetics, Servicio de Análisis Clínicos, Hospital Universitario Río Hortega, Gerencia Regional de Salud de Castilla y León (SACYL), Valladolid, Spain
| | - Jens Geginat
- Istituto Nazionale di Genetica Molecolare Romeo ed Enrica Invernizzi (INGM), Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Nicholas A. Gherardin
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
- Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Lara Gibellini
- Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, Singapore, Singapore
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Translational Immunology Institute, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Dale I. Godfrey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
- Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Paola Gruarin
- Istituto Nazionale di Genetica Molecolare Romeo ed Enrica Invernizzi (INGM), Milan, Italy
| | - Claudia Haftmann
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Leo Hansmann
- Department of Hematology, Oncology, and Tumor Immunology, Charité - Universitätsmedizin Berlin (CVK), Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin, Germany
| | - Christopher M. Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Adrian C. Hayday
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King’s College London, UK
- National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | - Guido Heine
- Division of Allergy, Department of Dermatology and Allergy, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Daniela Carolina Hernández
- Innate Immunity, German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Gastroenterology, Infectious Diseases, Rheumatology, Berlin, Germany
| | - Martin Herrmann
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Medicine 3 – Rheumatology and Immunology and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Oliver Hoelsken
- Laboratory of Innate Immunity, Department of Microbiology, Infectious Diseases and Immunology, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
- Mucosal and Developmental Immunology, German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Qing Huang
- Department of Surgery, The University of British Columbia, Vancouver, Canada
- BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Samuel Huber
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johanna E. Huber
- Institute for Immunology, Biomedical Center, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
| | - Jochen Huehn
- Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Michael Hundemer
- Department of Hematology, Oncology and Rheumatology, University Heidelberg, Heidelberg, Germany
| | - William Y. K. Hwang
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
- Department of Hematology, Singapore General Hospital, Singapore, Singapore
- Executive Offices, National Cancer Centre Singapore, Singapore
| | - Matteo Iannacone
- Division of Immunology, Transplantation and Infectious Diseases, IRCSS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Sabine M. Ivison
- Department of Surgery, The University of British Columbia, Vancouver, Canada
- BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Hans-Martin Jäck
- Division of Molecular Immunology, Nikolaus-Fiebiger-Center, Department of Internal Medicine III, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Peter K. Jani
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Baerbel Keller
- Department of Rheumatology and Clinical Immunology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Nina Kessler
- Institute of Molecular Medicine and Experimental Immunology, Faculty of Medicine, University of Bonn, Germany
| | - Steven Ketelaars
- Division of Molecular Oncology and Immunology, the Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Laura Knop
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, Magdeburg, Germany
| | - Jasmin Knopf
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Medicine 3 – Rheumatology and Immunology and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Hui-Fern Koay
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
- Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Katja Kobow
- Department of Neuropathology, Universitätsklinikum Erlangen, Germany
| | - Katharina Kriegsmann
- Department of Hematology, Oncology and Rheumatology, University Heidelberg, Heidelberg, Germany
| | - H. Kristyanto
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Andreas Krueger
- Institute for Molecular Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jenny F. Kuehne
- Institute of Transplant Immunology, Hannover Medical School, Hannover, Germany
| | - Heike Kunze-Schumacher
- Institute for Molecular Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Pia Kvistborg
- Division of Molecular Oncology and Immunology, the Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Immanuel Kwok
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, Singapore, Singapore
| | | | - Daniel Lenz
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Megan K. Levings
- Department of Surgery, The University of British Columbia, Vancouver, Canada
- BC Children’s Hospital Research Institute, Vancouver, Canada
- School of Biomedical Engineering, The University of British Columbia, Vancouver, Canada
| | - Andreia C. Lino
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Francesco Liotta
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Heather M. Long
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Enrico Lugli
- Laboratory of Translational Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Katherine N. MacDonald
- BC Children’s Hospital Research Institute, Vancouver, Canada
- School of Biomedical Engineering, The University of British Columbia, Vancouver, Canada
- Michael Smith Laboratories, The University of British Columbia, Vancouver, Canada
| | - Laura Maggi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Mala K. Maini
- Division of Infection & Immunity, Institute of Immunity & Transplantation, University College London, London, UK
| | - Florian Mair
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Calin Manta
- Department of Hematology, Oncology and Rheumatology, University Heidelberg, Heidelberg, Germany
| | - Rudolf Armin Manz
- Institute for Systemic Inflammation Research, University of Luebeck, Luebeck, Germany
| | | | - Alessio Mazzoni
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - James McCluskey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Henrik E. Mei
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Fritz Melchers
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Susanne Melzer
- Clinical Trial Center Leipzig, Leipzig University, Härtelstr.16, −18, Leipzig, 04107, Germany
| | - Dirk Mielenz
- Division of Molecular Immunology, Nikolaus-Fiebiger-Center, Department of Internal Medicine III, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Leticia Monin
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | - Lorenzo Moretta
- Department of Immunology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Gabriele Multhoff
- Radiation Immuno-Oncology Group, Center for Translational Cancer Research (TranslaTUM), Technical University of Munich (TUM), Klinikum rechts der Isar, Munich, Germany
- Department of Radiation Oncology, Technical University of Munich (TUM), Klinikum rechts der Isar, Munich, Germany
| | - Luis Enrique Muñoz
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Medicine 3 – Rheumatology and Immunology and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Miguel Muñoz-Ruiz
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | - Franziska Muscate
- Department of Medicine, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ambra Natalini
- Institute of Molecular Biology and Pathology, National Research Council of Italy (CNR), Rome, Italy
| | - Katrin Neumann
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lai Guan Ng
- Division of Medical Sciences, National Cancer Centre Singapore, Singapore
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, Singapore, Singapore
- Department of Microbiology & Immunology, Immunology Programme, Life Science Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | | | - Jana Niemz
- Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | | | - Samuele Notarbartolo
- Istituto Nazionale di Genetica Molecolare Romeo ed Enrica Invernizzi (INGM), Milan, Italy
| | - Lennard Ostendorf
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Laura J. Pallett
- Division of Infection & Immunity, Institute of Immunity & Transplantation, University College London, London, UK
| | - Amit A. Patel
- Institut National de la Sante Et de la Recherce Medicale (INSERM) U1015, Equipe Labellisee-Ligue Nationale contre le Cancer, Villejuif, France
| | - Gulce Itir Percin
- Immunology of Aging, Leibniz Institute on Aging – Fritz Lipmann Institute, Jena, Germany
| | - Giovanna Peruzzi
- Center for Life Nano & Neuro Science@Sapienza, Istituto Italiano di Tecnologia (IIT), Rome, Italy
| | - Marcello Pinti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - A. Graham Pockley
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
- Centre for Health, Ageing and Understanding Disease (CHAUD), School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Katharina Pracht
- Division of Molecular Immunology, Nikolaus-Fiebiger-Center, Department of Internal Medicine III, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Immo Prinz
- Institute of Immunology, Hannover Medical School, Hannover, Germany
- Institute of Systems Immunology, Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Irma Pujol-Autonell
- National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
- Peter Gorer Department of Immunobiology, King’s College London, London, UK
| | - Nadia Pulvirenti
- Istituto Nazionale di Genetica Molecolare Romeo ed Enrica Invernizzi (INGM), Milan, Italy
| | - Linda Quatrini
- Department of Immunology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Kylie M. Quinn
- School of Biomedical and Health Sciences, RMIT University, Bundorra, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Helena Radbruch
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Hefin Rhys
- Flow Cytometry Science Technology Platform, The Francis Crick Institute, London, UK
| | - Maria B. Rodrigo
- Institute of Molecular Medicine and Experimental Immunology, Faculty of Medicine, University of Bonn, Germany
| | - Chiara Romagnani
- Innate Immunity, German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Gastroenterology, Infectious Diseases, Rheumatology, Berlin, Germany
| | - Carina Saggau
- Institute of Immunology, Christian-Albrechts Universität zu Kiel & Universitätsklinik Schleswig-Holstein, Kiel, Germany
| | | | - Federica Sallusto
- Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
- Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | - Lieke Sanderink
- Regensburg Center for Interventional Immunology (RCI), Regensburg, Germany
- Chair for Immunology, University Regensburg, Regensburg, Germany
| | - Inga Sandrock
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Christine Schauer
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Medicine 3 – Rheumatology and Immunology and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Alexander Scheffold
- Institute of Immunology, Christian-Albrechts Universität zu Kiel & Universitätsklinik Schleswig-Holstein, Kiel, Germany
| | - Hans U. Scherer
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Matthias Schiemann
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany
| | - Frank A. Schildberg
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Kilian Schober
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Janina Schoen
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Medicine 3 – Rheumatology and Immunology and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Wolfgang Schuh
- Division of Molecular Immunology, Nikolaus-Fiebiger-Center, Department of Internal Medicine III, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Schüler
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, Magdeburg, Germany
| | - Axel R. Schulz
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Sebastian Schulz
- Division of Molecular Immunology, Nikolaus-Fiebiger-Center, Department of Internal Medicine III, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Julia Schulze
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Sonia Simonetti
- Institute of Molecular Biology and Pathology, National Research Council of Italy (CNR), Rome, Italy
| | - Jeeshan Singh
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Medicine 3 – Rheumatology and Immunology and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Katarzyna M. Sitnik
- Department of Viral Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Regina Stark
- Charité Universitätsmedizin Berlin – BIH Center for Regenerative Therapies, Berlin, Germany
- Sanquin Research – Adaptive Immunity, Amsterdam, The Netherlands
| | - Sarah Starossom
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Christina Stehle
- Innate Immunity, German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Gastroenterology, Infectious Diseases, Rheumatology, Berlin, Germany
| | - Franziska Szelinski
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Department of Medicine/Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Leonard Tan
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, Singapore, Singapore
- Department of Microbiology & Immunology, Immunology Programme, Life Science Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Attila Tarnok
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
- Department of Precision Instrument, Tsinghua University, Beijing, China
- Department of Preclinical Development and Validation, Fraunhofer Institute for Cell Therapy and Immunology IZI, Leipzig, Germany
| | - Julia Tornack
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | - Timothy I. M. Tree
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King’s College London, UK
- National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
| | - Jasper J. P. van Beek
- Laboratory of Translational Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | | | - Chiara Vasco
- Istituto Nazionale di Genetica Molecolare Romeo ed Enrica Invernizzi (INGM), Milan, Italy
| | - Nikita A. Verheyden
- Institute for Molecular Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Anouk von Borstel
- Infection and Immunity Program, Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Kirsten A. Ward-Hartstonge
- Department of Surgery, The University of British Columbia, Vancouver, Canada
- BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Klaus Warnatz
- Department of Rheumatology and Clinical Immunology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Claudia Waskow
- Immunology of Aging, Leibniz Institute on Aging – Fritz Lipmann Institute, Jena, Germany
- Institute of Biochemistry and Biophysics, Faculty of Biological Sciences, Friedrich-Schiller-University Jena, Jena, Germany
- Department of Medicine III, Technical University Dresden, Dresden, Germany
| | - Annika Wiedemann
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
- Department of Medicine/Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Anneke Wilharm
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - James Wing
- Immunology Frontier Research Center, Osaka University, Japan
| | - Oliver Wirz
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jens Wittner
- Division of Molecular Immunology, Nikolaus-Fiebiger-Center, Department of Internal Medicine III, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Jennie H. M. Yang
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King’s College London, UK
- National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
| | - Juhao Yang
- Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
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11
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Anderson RP. Emergence of an adaptive immune paradigm to explain celiac disease: a perspective on new evidence and implications for future interventions and diagnosis. Expert Rev Clin Immunol 2021; 18:75-91. [PMID: 34767744 DOI: 10.1080/1744666x.2021.2006636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Recent patient studies have shown that gluten-free diet is less effective in treating celiac disease than previously believed, and additionally patients remain vulnerable to gluten-induced acute symptoms and systemic cytokine release. Safe and effective pharmacological adjuncts to gluten-free diet are in preclinical and clinical development. Clear understanding of the pathogenesis of celiac disease is critical for drug target identification, establishing efficacy endpoints and to develop non-invasive biomarkers suitable to monitor and potentially diagnose celiac disease. AREAS COVERED The role and clinical effects of CD4+ T cells directed against deamidated gluten in the context of an "adaptive immune paradigm" are reviewed. Alternative hypotheses of gluten toxicity are discussed and contrasted. In the context of recent patient studies, implications of the adaptive immune paradigm for future strategies to prevent, diagnose, and treat celiac disease are outlined. EXPERT OPINION Effective therapeutics for celiac disease are likely to be approved and necessitate a variety of new clinical instruments and tests to stratify patient need, monitor remission, and confirm diagnosis in uncertain cases. Sensitive assessments of CD4+ T cells specific for deamidated gluten are likely to play a central role in clinical management, and to facilitate research and pharmaceutical development.
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12
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Stamnaes J. Insights from tissue "omics" analysis on intestinal remodeling in celiac disease. Proteomics 2021; 21:e2100057. [PMID: 34633755 DOI: 10.1002/pmic.202100057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 12/20/2022]
Abstract
Celiac disease (CeD) is a prevalent intestinal disorder that only develops in genetically susceptible individuals when they mount a harmful CD4+ T-cell response towards gluten peptides. Intake of gluten leads to inflammation and remodeling of the small intestine with symptoms such as nausea and diarrhea. The only current treatment is a lifelong gluten free diet. The immunological basis for CeD is well characterized but the mechanisms that drive intestinal remodeling are still poorly understood. Transcriptome or proteome analysis of intestinal biopsies gives a global snapshot of all processes that occur in the tissue, including alterations in the epithelial cell layer. This paper will introduce concepts of intestinal remodeling, recapitulate the current understanding of CeD pathogenesis and discuss findings from relevant tissue "omics" studies. On the basis of this review, I give perspectives on what tissue "omics" studies can tell us about disease pathogenesis with a particular focus on the gluten induced intestinal remodeling.
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Affiliation(s)
- Jorunn Stamnaes
- Department of Immunology, K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
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13
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Wyrożemski Ł, Qiao SW. Immunobiology and conflicting roles of the human CD161 receptor in T cells. Scand J Immunol 2021; 94:e13090. [PMID: 35611672 DOI: 10.1111/sji.13090] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/29/2021] [Accepted: 06/21/2021] [Indexed: 12/22/2022]
Abstract
Human C-type lectin-like CD161 is a type-II transmembrane protein expressed on the surface of various lymphocytes across innate and adaptive immune systems. CD161+ T cells displayed enhanced ability to produce cytokines and were shown to be enriched in the gut. Independently of function, CD161 was used as marker of innate-like T cells and marker of IL-17-producing cells. The function of CD161 is still not fully understood. In T cells, CD161 was proposed to act as co-signalling receptor that influence T-cell receptor-dependent responses. However, conflicting studies were published demonstrating lack of agreement over the role of CD161 during T-cell activation. In this review, we outline phenotypical and functional consequences of CD161 expression in T cells. We provide critical discussion over the most pressing issues including in depth evaluation of the literature concerning CD161 putative co-signalling properties.
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Affiliation(s)
- Łukasz Wyrożemski
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway.,Department of Immunology, University of Oslo, Oslo, Norway
| | - Shuo-Wang Qiao
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway.,Department of Immunology, University of Oslo, Oslo, Norway.,Department of Immunology, Oslo University Hospital, Oslo, Norway
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14
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IL-15 and PIM kinases direct the metabolic programming of intestinal intraepithelial lymphocytes. Nat Commun 2021; 12:4290. [PMID: 34257288 PMCID: PMC8277781 DOI: 10.1038/s41467-021-24473-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/17/2021] [Indexed: 02/06/2023] Open
Abstract
Intestinal intraepithelial lymphocytes (IEL) are an abundant population of tissue-resident T cells that protect and maintain the intestinal barrier. IEL respond to epithelial cell-derived IL-15, which is complexed to the IL-15 receptor α chain (IL-15/Rα). IL-15 is essential both for maintaining IEL homeostasis and inducing IEL responses to epithelial stress, which has been associated with Coeliac disease. Here, we apply quantitative mass spectrometry to IL-15/Rα-stimulated IEL to investigate how IL-15 directly regulates inflammatory functions of IEL. IL-15/Rα drives IEL activation through cell cycle regulation, upregulation of metabolic machinery and expression of a select repertoire of cell surface receptors. IL-15/Rα selectively upregulates the Ser/Thr kinases PIM1 and PIM2, which are essential for IEL to proliferate, grow and upregulate granzyme B in response to inflammatory IL-15. Notably, IEL from patients with Coeliac disease have high PIM expression. Together, these data indicate PIM kinases as important effectors of IEL responses to inflammatory IL-15.
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15
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Programmed Cell Death in the Small Intestine: Implications for the Pathogenesis of Celiac Disease. Int J Mol Sci 2021; 22:ijms22147426. [PMID: 34299046 PMCID: PMC8306608 DOI: 10.3390/ijms22147426] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 12/15/2022] Open
Abstract
The small intestine has a high rate of cell turnover under homeostatic conditions, and this increases further in response to infection or damage. Epithelial cells mostly die by apoptosis, but recent studies indicate that this may also involve pro-inflammatory pathways of programmed cell death, such as pyroptosis and necroptosis. Celiac disease (CD), the most prevalent immune-based enteropathy, is caused by loss of oral tolerance to peptides derived from wheat, rye, and barley in genetically predisposed individuals. Although cytotoxic cells and gluten-specific CD4+ Th1 cells are the central players in the pathology, inflammatory pathways induced by cell death may participate in driving and sustaining the disease through the release of alarmins. In this review, we summarize the recent literature addressing the role of programmed cell death pathways in the small intestine, describing how these mechanisms may contribute to CD and discussing their potential implications.
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16
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Voisine J, Abadie V. Interplay Between Gluten, HLA, Innate and Adaptive Immunity Orchestrates the Development of Coeliac Disease. Front Immunol 2021; 12:674313. [PMID: 34149709 PMCID: PMC8206552 DOI: 10.3389/fimmu.2021.674313] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/18/2021] [Indexed: 12/26/2022] Open
Abstract
Several environmental, genetic, and immune factors create a "perfect storm" for the development of coeliac disease: the antigen gluten, the strong association of coeliac disease with HLA, the deamidation of gluten peptides by the enzyme transglutaminase 2 (TG2) generating peptides that bind strongly to the predisposing HLA-DQ2 or HLA-DQ8 molecules, and the ensuing unrestrained T cell response. T cell immunity is at the center of the disease contributing to the inflammatory process through the loss of tolerance to gluten and the differentiation of HLA-DQ2 or HLA-DQ8-restricted anti-gluten inflammatory CD4+ T cells secreting pro-inflammatory cytokines and to the killing of intestinal epithelial cells by cytotoxic intraepithelial CD8+ lymphocytes. However, recent studies emphasize that the individual contribution of each of these cell subsets is not sufficient and that interactions between these different populations of T cells and the simultaneous activation of innate and adaptive immune pathways in distinct gut compartments are required to promote disease immunopathology. In this review, we will discuss how tissue destruction in the context of coeliac disease results from the complex interactions between gluten, HLA molecules, TG2, and multiple innate and adaptive immune components.
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Affiliation(s)
- Jordan Voisine
- Department of Medicine, The University of Chicago, Chicago, IL, United States.,Committee on Immunology, The University of Chicago, Chicago, IL, United States
| | - Valérie Abadie
- Department of Medicine, The University of Chicago, Chicago, IL, United States.,Section of Gastroenterology, Nutrition and Hepatology, The University of Chicago, Chicago, IL, United States
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17
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van der Graaf A, Zorro MM, Claringbould A, Võsa U, Aguirre-Gamboa R, Li C, Mooiweer J, Ricaño-Ponce I, Borek Z, Koning F, Kooy-Winkelaar Y, Sollid LM, Qiao SW, Kumar V, Li Y, Franke L, Withoff S, Wijmenga C, Sanna S, Jonkers I. Systematic Prioritization of Candidate Genes in Disease Loci Identifies TRAFD1 as a Master Regulator of IFNγ Signaling in Celiac Disease. Front Genet 2021; 11:562434. [PMID: 33569077 PMCID: PMC7868554 DOI: 10.3389/fgene.2020.562434] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022] Open
Abstract
Celiac disease (CeD) is a complex T cell-mediated enteropathy induced by gluten. Although genome-wide association studies have identified numerous genomic regions associated with CeD, it is difficult to accurately pinpoint which genes in these loci are most likely to cause CeD. We used four different in silico approaches-Mendelian randomization inverse variance weighting, COLOC, LD overlap, and DEPICT-to integrate information gathered from a large transcriptomics dataset. This identified 118 prioritized genes across 50 CeD-associated regions. Co-expression and pathway analysis of these genes indicated an association with adaptive and innate cytokine signaling and T cell activation pathways. Fifty-one of these genes are targets of known drug compounds or likely druggable genes, suggesting that our methods can be used to pinpoint potential therapeutic targets. In addition, we detected 172 gene combinations that were affected by our CeD-prioritized genes in trans. Notably, 41 of these trans-mediated genes appear to be under control of one master regulator, TRAF-type zinc finger domain containing 1 (TRAFD1), and were found to be involved in interferon (IFN)γ signaling and MHC I antigen processing/presentation. Finally, we performed in vitro experiments in a human monocytic cell line that validated the role of TRAFD1 as an immune regulator acting in trans. Our strategy confirmed the role of adaptive immunity in CeD and revealed a genetic link between CeD and IFNγ signaling as well as with MHC I antigen processing, both major players of immune activation and CeD pathogenesis.
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Affiliation(s)
- Adriaan van der Graaf
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Maria M. Zorro
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Annique Claringbould
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Urmo Võsa
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Raúl Aguirre-Gamboa
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Chan Li
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Immunology, K. G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Joram Mooiweer
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Isis Ricaño-Ponce
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Zuzanna Borek
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), An Institute of the Leibniz Association, Berlin, Germany
- Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Gastroenterology, Infectious Diseases and Rheumatology, Berlin, Germany
| | - Frits Koning
- Department of Immunology, Leiden University, Leiden, Netherlands
| | | | - Ludvig M. Sollid
- Department of Immunology, K. G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Shuo-Wang Qiao
- Department of Immunology, K. G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Vinod Kumar
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Yang Li
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
- Department of Computational Biology for Individualised Infection Medicine, Centre for Individualised Infection Medicine, Helmholtz Centre for Infection Research, Hannover Medical School, Hanover, Germany
| | - Lude Franke
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Sebo Withoff
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Cisca Wijmenga
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Immunology, K. G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Serena Sanna
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Istituto di Ricerca Genetica e Biomedica (IRGB) del Consiglio Nazionale delle Ricerche (CNR), Monserrato, Italy
| | - Iris Jonkers
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Immunology, K. G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
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18
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Gupta KB, Mantha AK, Dhiman M. Mitigation of Gliadin-Induced Inflammation and Cellular Damage by Curcumin in Human Intestinal Cell Lines. Inflammation 2021; 44:873-889. [PMID: 33394186 DOI: 10.1007/s10753-020-01383-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/08/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022]
Abstract
Wheat is a major diet from many years; apart from its nutritious value, the wheat protein gliadin is responsible for many inflammatory diseases like celiac disease (CD), and non-celiac gluten sensitivity (NCGS). In this study, the gliadin-induced inflammation and associated cellular damage along with the protective role of curcumin was evaluated using human intestinal cell lines (HCT-116 and HT-29) as a model. Cells were cultured and exposed to 160 μg/ml of gliadin, 100 μM H2O2, and 10 μM curcumin (3 h pretreatment) followed by the assessment of inflammation. Spectrophotometric methods, real-time-PCR, ELISA, Western blotting, and confocal microscopy techniques were used to assess inflammatory markers such as advanced oxidation protein products (AOPPs) level, activity of myeloperoxidase (MPO) and NADPH oxidase (NOX), cytokines, and cell damage markers. The results show that gliadin increases the AOPPs level and the activity of MPO and NOX expression. It enhances inflammation by increasing expression of pro-inflammatory cytokines, altered expression of anti-inflammatory, and regulatory cytokines. It exacerbates the cellular damage by increasing MMP-2 and 9 and decreasing integrin α and β expression. Gliadin promotes disease pathogenesis by inducing the inflammation and cellular damage which further alter the cellular homeostasis. The pretreatment of curcumin counteracts the adverse effect of gliadin and protect the cells via diminishing the inflammation and help the cell to regain the cellular morphology suggesting phytochemical-based remedial interventions against wheat allergies.
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Affiliation(s)
- Kunj Bihari Gupta
- Department of Microbiology, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Anil K Mantha
- Department of Zoology, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Monisha Dhiman
- Department of Microbiology, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India.
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19
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Yu X, Vargas J, Green PH, Bhagat G. Innate Lymphoid Cells and Celiac Disease: Current Perspective. Cell Mol Gastroenterol Hepatol 2020; 11:803-814. [PMID: 33309944 PMCID: PMC7851184 DOI: 10.1016/j.jcmgh.2020.12.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022]
Abstract
Celiac disease (CD) is a common autoimmune disorder triggered by the ingestion of gluten in genetically susceptible individuals. Although the mechanisms underlying gliadin-mediated activation of adaptive immunity in CD have been well-characterized, regulation of innate immune responses and the functions of certain immune cell populations within the epithelium and lamina propria are not well-understood at present. Innate lymphoid cells (ILCs) are types of innate immune cells that have lymphoid morphology, lack antigen-specific receptors, and play important roles in tissue homeostasis, inflammation, and protective immune responses against pathogens. Information regarding the diversity and functions of ILCs in lymphoid organs and at mucosal sites has grown over the past decade, and roles of different ILC subsets in the pathogenesis of some inflammatory intestinal diseases have been proposed. However, our understanding of the contribution of ILCs toward the initiation and progression of CD is still limited. In this review, we discuss current pathophysiological aspects of ILCs within the gastrointestinal tract, findings of recent investigations characterizing ILC alterations in CD and refractory CD, and suggest avenues for future research.
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Affiliation(s)
- Xuechen Yu
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York
| | - Justin Vargas
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York
| | - Peter H.R. Green
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York
| | - Govind Bhagat
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York,Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York,Correspondence Address correspondence to: Govind Bhagat, MD, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 630 West 168th Street, VC 14-228, New York, New York 10032. fax: (212) 305-2301.
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20
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Aghamohamadi E, Kokhaei P, Rostami-Nejad M, Pak F, Rostami K, Moradi A, Pourhoseingholi MA, Chaleshi V, Masotti A, Zali MR. Serum Level and Gene Expression of Interleukin-15 Do Not Correlate with Villous Atrophy in Celiac Disease Patients. Genet Test Mol Biomarkers 2020; 24:502-507. [PMID: 32700980 DOI: 10.1089/gtmb.2019.0265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Background and Aims: Interleukin-15 (IL-15) is a key player in the pathogenesis of celiac disease (CD). We investigated the functional role of IL-15 in the process of epithelial cell phenotypic modification at different stages of CD. Materials and Methods: In this study, we looked for correlations between the IL-15 mRNA levels in duodenal tissue and serum protein levels in a cohort of Iranian patients affected by CD based on the degree of histopathology. Ninety-five formalin-fixed, paraffin-embedded duodenal tissue specimens were collected: 23 with a Marsh I value; 30 with a Marsh II value; 32 with a Marsh III value; and 10 normal controls. The expression levels of the IL-15 gene in these biopsy specimens were determined by real-time quantitative polymerase chain reaction (qPCR), and IL-15 serum protein concentrations were determined by enzyme-linked immunosorbent assay and compared to tissue expression. Results: The IL-15 mRNA levels were higher in patients with Marsh II compared with the control group, and the Marsh I, and Marsh III groups. The differences between the Marsh II and Marsh I patients were statistically significant (p = 0.03). Similarly, the serum concentration of IL-15 was higher in Marsh II patients compared to those with Marsh I and Marsh III lesions, although the differences were not statistically significant (p = 0.221). Conclusions: Our results demonstrate that IL-15 gene expression might be elevated only in the early stages of CD onset (and histological damage) and that IL-15 serum levels do not significantly correlate with its tissue expression whatever the degree of histopathology.
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Affiliation(s)
- Elham Aghamohamadi
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Parviz Kokhaei
- Cancer Research Center, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Pak
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Kamran Rostami
- Department of Gastroenterology, Mid Central DHB, Palmerston Hospital, Palmerston North, New Zealand
| | - Afshin Moradi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohamad Amin Pourhoseingholi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Chaleshi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Andrea Masotti
- Research Laboratories, Bambino Gesù Children's Hospital-IRCCS, Rome, Italy
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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The expression levels of CHI3L1 and IL15Rα correlate with TGM2 in duodenum biopsies of patients with celiac disease. Inflamm Res 2020; 69:925-935. [PMID: 32500186 DOI: 10.1007/s00011-020-01371-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/13/2020] [Accepted: 06/02/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE AND DESIGN Celiac disease (CD) is an intestinal inflammatory disorder of the small intestine. Gliadins are a component of gluten and there are three main types (α, γ, and ω). Recent studies indicate that gliadin peptides are able to activate an innate immune response. IL15 is a major mediator of the innate immune response and is involved in the early alteration of CD mucosa. The chitinase molecules are highly expressed by the innate immune cells during the inflammatory processes. MATERIAL OR SUBJECTS We analyzed several microarray datasets of PBMCs and duodenum biopsies of CD patients and healthy control subjects (HCs). We verified the modulation CHI3L1 in CD patients and correlated the expression levels to the IL15, IL15Rα, TGM2, IFNγ, and IFNGR1/2. Duodenal biopsy samples belonged to nine active and nine treated children patients (long-term effects of gliadin), and 17 adult CD patients and 10 adults HCs. We also selected 169 samples of PBMCs from 127 CD patients on adherence to a gluten-free diet (GFD) for at least 2 years and 44 HCs. RESULTS Our analysis showed that CHI3L1 and IL15Rα were significantly upregulated in adult and children's celiac duodenum biopsies. In addition, the two genes were correlated significantly both in children than in adults CD duodenum biopsies. No significant modulation was observed in PBMCs of adult CD patients compared to the HCs. The correlation analysis of the expression levels of CHI3L1 and IL15Rα compared to TGM showed significant values both in adults and in children duodenal biopsies. Furthermore, the IFNγ expression levels were positively correlated with CHI3L1 and IL15Rα. Receiver operating characteristic (ROC) analysis confirmed the diagnostic ability of CHI3L1 and IL15Rα to discriminate CD from HCs. CONCLUSION Our data suggest a role for CHI3L1 underlying the pathophysiology of CD and represent a starting point aiming to inspire new investigation that proves the possible use of CHI3L1 as a diagnostic factor and therapeutic target.
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22
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Maglio M, Troncone R. Intestinal Anti-tissue Transglutaminase2 Autoantibodies: Pathogenic and Clinical Implications for Celiac Disease. Front Nutr 2020; 7:73. [PMID: 32548124 PMCID: PMC7273338 DOI: 10.3389/fnut.2020.00073] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 04/28/2020] [Indexed: 12/13/2022] Open
Abstract
Celiac disease (CD) is a systemic disease that primarily affects the small intestine. The presence of anti-tissue transglutaminase 2 (anti-TG2) antibodies in the serum, as well as the presence of autoimmune phenomena, account for the inclusion of CD among autoimmune diseases. Anti-TG2 autoantibodies are produced at intestinal level, where they are deposited even before they appear in circulation. The pathogenic events that lead to their production are still not completely defined, but a central role seems to be played by gliadin-specific T cells. Interestingly, limited somatic mutations have been observed in VH and VL genes in TG2-specific plasma cells, another important aspect being the biased use of a heavy chain encoded by the VH5 gene. Conflicting data have been produced over the years on the effect of anti-TG2 antibodies on TG2 function. Although the presence of anti-TG2 antibodies in serum is considered a hallmark of CD and relevant from a clinical viewpoint, the role of these autoantibodies in the development of the celiac lesion remains to be defined. In the years, different technical approaches have been implemented to detect and measure intestinal CD-associated autoantibody production. Two aspects can make intestinal anti-TG2 antibodies relevant: from a clinical viewpoint: the first is their proposed ability in potential coeliac patients to predict the development of a full-blown enteropathy; the second is their possible role in revealing a condition of reactivity to gluten in patients with no circulating CD-associated autoantibodies. In fact, the detection of CD-specific autoantibodies production in the intestine, in the absence of serum positivity for the same antibodies, could be suggestive of a very early condition of gluten reactivity; alternatively, it could be not specific for CD and merely attributable to intestinal inflammation. In conclusion, the role of mucosal anti-TG2 antibodies in pathogenesis of CD is unknown. Their presence, the modalities of their production, their gluten dependence render them a unique model to study autoimmunity.
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Affiliation(s)
- Mariantonia Maglio
- Department of Medical Translational Sciences and European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
| | - Riccardo Troncone
- Department of Medical Translational Sciences and European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
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23
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Zorro MM, Aguirre-Gamboa R, Mayassi T, Ciszewski C, Barisani D, Hu S, Weersma RK, Withoff S, Li Y, Wijmenga C, Jabri B, Jonkers IH. Tissue alarmins and adaptive cytokine induce dynamic and distinct transcriptional responses in tissue-resident intraepithelial cytotoxic T lymphocytes. J Autoimmun 2020; 108:102422. [PMID: 32033836 PMCID: PMC7049906 DOI: 10.1016/j.jaut.2020.102422] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 12/13/2022]
Abstract
The respective effects of tissue alarmins interleukin (IL)-15 and interferon beta (IFNβ), and IL-21 produced by T cells on the reprogramming of cytotoxic T lymphocytes (CTLs) that cause tissue destruction in celiac disease is poorly understood. Transcriptomic and epigenetic profiling of primary intestinal CTLs showed massive and distinct temporal transcriptional changes in response to tissue alarmins, while the impact of IL-21 was limited. Only anti-viral pathways were induced in response to all the three stimuli, albeit with differences in dynamics and strength. Moreover, changes in gene expression were primarily independent of changes in H3K27ac, suggesting that other regulatory mechanisms drive the robust transcriptional response. Finally, we found that IL-15/IFNβ/IL-21 transcriptional signatures could be linked to transcriptional alterations in risk loci for complex immune diseases. Together these results provide new insights into molecular mechanisms that fuel the activation of CTLs under conditions that emulate the inflammatory environment in patients with autoimmune diseases.
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Affiliation(s)
- Maria Magdalena Zorro
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Raul Aguirre-Gamboa
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Toufic Mayassi
- Department of Medicine, University of Chicago, Chicago, USA; Committee on Immunology, University of Chicago, Chicago, USA
| | | | | | - Shixian Hu
- Department of Gastroenterology and Hepatology, University Medical Center, Groningen, University of Groningen, Groningen, the Netherlands
| | - Rinse K Weersma
- Department of Gastroenterology and Hepatology, University Medical Center, Groningen, University of Groningen, Groningen, the Netherlands
| | - Sebo Withoff
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Yang Li
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, the Netherlands; Department of Computational Biology for Individualised Infection Medicine, Centre for Individualised Infection Medicine, Helmholtz Centre for Infection Research, Hannover Medical School. Hannover, Germany
| | - Cisca Wijmenga
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; K.G. Jebsen Coeliac Disease Research Centre, Department of Immunology, University of Oslo, Oslo, Norway
| | - Bana Jabri
- Department of Medicine, University of Chicago, Chicago, USA; Committee on Immunology, University of Chicago, Chicago, USA.
| | - Iris H Jonkers
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; K.G. Jebsen Coeliac Disease Research Centre, Department of Immunology, University of Oslo, Oslo, Norway.
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24
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Uhde M, Yu X, Bunin A, Brauner C, Lewis SK, Lebwohl B, Krishnareddy S, Alaedini A, Reizis B, Ghosh S, Green PH, Bhagat G. Phenotypic shift of small intestinal intra-epithelial type 1 innate lymphoid cells in celiac disease is associated with enhanced cytotoxic potential. Clin Exp Immunol 2020; 200:163-175. [PMID: 31907928 DOI: 10.1111/cei.13414] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2019] [Indexed: 12/17/2022] Open
Abstract
The small intestinal (SI) epithelium harbors a heterogeneous population of lymphocytes that mediate mucosal damage and repair in celiac disease (CD). The composition and roles of human proximal SI intra-epithelial innate lymphoid cells (ILCs), and their alterations in CD, are not well understood. We report that duodenal intra-epithelial ILCs predominantly consist of natural killer (NK)p44+ CD127- cytotoxic ILC1s and NKp44- CD127+ helper ILC1s, while ILC3s only represent a minor population. In patients with newly diagnosed or active CD (ACD) and refractory CD type 1 (RCD I), the frequency of SI NKp44+ ILCs is decreased, with restoration of NKp44+ ILC frequency observed in patients adhering to a gluten-free diet who show evidence of mucosal healing. Moreover, the frequency of SI NKp44- ILCs is increased in ACD and RCD I patients and correlates with the severity of villous atrophy and epithelial damage, as assessed by serum levels of fatty acid binding protein 2 (FABP2). We show that the ILC alterations in CD represent a phenotypic shift of cytotoxic ILC1s rather than an increase in helper ILC1s or transdifferentiation of ILC1s to ILC3s, and activation-induced loss of NKp44 by cytotoxic ILC1s is associated with increased interferon (IFN)-γ expression and release of lytic granules. These findings suggest that intra-epithelial NKp44- CD127- cytotoxic ILC1s may contribute to mucosal damage in CD.
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Affiliation(s)
- M Uhde
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - X Yu
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - A Bunin
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - C Brauner
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - S K Lewis
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - B Lebwohl
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - S Krishnareddy
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - A Alaedini
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA.,Institute of Human Nutrition, Columbia University Irving Medical Center, New York, NY, USA
| | - B Reizis
- Department of Pathology, Department of Medicine, New York University Langone Medical Center, New York, NY, USA
| | - S Ghosh
- Department of Microbiology and Immunology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - P H Green
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA
| | - G Bhagat
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, NY, USA.,Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
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25
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Mechanisms of activation of innate-like intraepithelial T lymphocytes. Mucosal Immunol 2020; 13:721-731. [PMID: 32415229 PMCID: PMC7434593 DOI: 10.1038/s41385-020-0294-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/09/2020] [Accepted: 04/11/2020] [Indexed: 02/04/2023]
Abstract
Intraepithelial T lymphocytes (T-IEL) contain subsets of innate-like T cells that evoke innate and adaptive immune responses to provide rapid protection at epithelial barrier sites. In the intestine, T-IEL express variable T cell antigen receptors (TCR), with unknown antigen specificities. Intriguingly, they also express multiple inhibitory receptors, many of which are normally found on exhausted or antigen-experienced T cells. This pattern suggests that T-IEL are antigen-experienced, yet it is not clear where, and in what context, T-IEL encounter TCR ligands. We review recent evidence indicating TCR antigens for intestinal innate-like T-IEL are found on thymic or intestinal epithelium, driving agonist selection of T-IEL. We explore the contributions of the TCR and various co-stimulatory and co-inhibitory receptors in activating T-IEL effector functions. The balance between inhibitory and activating signals may be key to keeping these highly cytotoxic, rapidly activated cells in check, and key to harnessing their immune surveillance potential.
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26
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Zhou C, Qiu Y, Yang H. CD4CD8αα IELs: They Have Something to Say. Front Immunol 2019; 10:2269. [PMID: 31649659 PMCID: PMC6794356 DOI: 10.3389/fimmu.2019.02269] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/09/2019] [Indexed: 12/22/2022] Open
Abstract
The intraepithelial lymphocytes (IELs) that reside within the epithelium of the intestine play a critical role in maintaining the immune balance of the gut. CD4CD8αα IELs are one of the most important types of IELs, and they play an irreplaceable role in maintaining the balance of the intestinal immune system. CD4CD8αα IELs are often regarded as a special subtype of CD4+ IELs that can express CD8αα on their cytomembrane. Hence, CD4CD8αα IELs not only have the ability to modulate the functions of immune cells but also are regarded as cytotoxic T lymphocytes (CTLs). Transcription factors, microbes, and dietary factors have a substantial effect on the development of CD4CD8αα IELs, which make them exert immunosuppression and cytotoxicity activities. In addition, there is an intimate relationship between CD4CD8αα IELs and inflammatory bowel disease (IBD), whereas it is still unclear how CD4CD8αα IELs influence IBD. As such, this review will focus on the unparalleled differentiation of CD4CD8αα IELs and discuss how these cells might be devoted to tolerance and immunopathological responses in the intestinal tract. In addition, the role of CD4CD8αα IELs in IBD would also be discussed.
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Affiliation(s)
- Chao Zhou
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuan Qiu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hua Yang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
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27
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Vitale S, Santarlasci V, Camarca A, Picascia S, Pasquale AD, Maglio M, Maggi E, Cosmi L, Annunziato F, Troncone R, Auricchio R, Gianfrani C. The intestinal expansion of TCRγδ + and disappearance of IL4 + T cells suggest their involvement in the evolution from potential to overt celiac disease. Eur J Immunol 2019; 49:2222-2234. [PMID: 31553811 DOI: 10.1002/eji.201948098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 07/26/2019] [Indexed: 01/03/2023]
Abstract
Celiac disease (CD) is characterized by a spectrum of intestinal inflammatory lesions. Most patients have villous atrophy (overt-CD), while others have a morphologically normal mucosa, despite the presence of CD-specific autoantibodies (potential-CD). As the mechanism responsible for villous atrophy is not completely elucidated, we investigated biomarkers specific for the different celiac lesions. Phenotype and cytokine production of intestinal mucosa cells were analyzed by flow cytometry in gut biopsies of children with overt- or potential-CD and in healthy controls. Density of TCRγδ+ T cells was found markedly enhanced in intestinal mucosa of children with overt-CD compared to potential-CD or controls. By contrast, very few IL4+ T cells infiltrated the mucosa with villous atrophy compared to morphologically normal mucosa. IL4+ T cells were classical CD4+ T-helper cells (CD161- ), producing or not IFN-γ, and negative for IL17A. Our study demonstrated that the transition to villous atrophy in CD patients is characterized by increased density of TCRγδ+ T cells, and concomitant disappearance of IL4+ cells. These findings suggest that immunomodulatory mechanisms are active in potential-CD to counteract the inflammatory cascade responsible of villous atrophy. Further studies are required to validate the use of IL4+ and TCRγδ+ T cells as biomarkers of the different CD forms.
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Affiliation(s)
- Serena Vitale
- Institute of Biochemistry and Cell Biology, National Research Council, Naples, Italy
| | | | | | - Stefania Picascia
- Institute of Biochemistry and Cell Biology, National Research Council, Naples, Italy
| | - Angela Di Pasquale
- Institute of Biochemistry and Cell Biology, National Research Council, Naples, Italy
| | - Mariantonia Maglio
- Department of Translational Medicine & European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
| | - Enrico Maggi
- Immunology Department, Pediatric Hospital Bambino Gesù, IRCCS, Rome
| | - Lorenzo Cosmi
- Denothe Center, University of Florence, Florence, Italy
| | | | - Riccardo Troncone
- Institute of Biochemistry and Cell Biology, National Research Council, Naples, Italy
| | - Renata Auricchio
- Department of Translational Medicine & European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
| | - Carmen Gianfrani
- Institute of Biochemistry and Cell Biology, National Research Council, Naples, Italy.,Department of Translational Medicine & European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
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28
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Mowat AM. To respond or not to respond - a personal perspective of intestinal tolerance. Nat Rev Immunol 2019; 18:405-415. [PMID: 29491358 DOI: 10.1038/s41577-018-0002-x] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
For many years, the intestine was one of the poor relations of the immunology world, being a realm inhabited mostly by specialists and those interested in unusual phenomena. However, this has changed dramatically in recent years with the realization of how important the microbiota is in shaping immune function throughout the body, and almost every major immunology institution now includes the intestine as an area of interest. One of the most important aspects of the intestinal immune system is how it discriminates carefully between harmless and harmful antigens, in particular, its ability to generate active tolerance to materials such as commensal bacteria and food proteins. This phenomenon has been recognized for more than 100 years, and it is essential for preventing inflammatory disease in the intestine, but its basis remains enigmatic. Here, I discuss the progress that has been made in understanding oral tolerance during my 40 years in the field and highlight the topics that will be the focus of future research.
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Affiliation(s)
- Allan McI Mowat
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary Medicine and Life Sciences, University of Glasgow, Glasgow, UK.
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29
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McDonald BD, Jabri B, Bendelac A. Diverse developmental pathways of intestinal intraepithelial lymphocytes. Nat Rev Immunol 2019; 18:514-525. [PMID: 29717233 DOI: 10.1038/s41577-018-0013-7] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The intestinal epithelial barrier is patrolled by resident intraepithelial lymphocytes (IELs) that are involved in host defence against pathogens, wound repair and homeostatic interactions with the epithelium, microbiota and nutrients. Intestinal IELs are one of the largest populations of lymphocytes in the body and comprise several distinct subsets, the identity and lineage relationships of which have long remained elusive. Here, we review advances in unravelling the complexity of intestinal IEL populations, which comprise conventional αβ T cell receptor (TCRαβ)+ subsets, unconventional TCRαβ+ and TCRγδ+ subsets, group 1 innate lymphoid cells (ILC1s) and ILC1-like cells. Although these intestinal IEL lineages have partially overlapping effector programmes and recognition properties, they have strikingly different developmental pathways. We suggest that evolutionary pressure has driven the recurrent generation of cytolytic effector lymphocytes to protect the intestinal epithelial layer, but they may also precipitate intestinal inflammatory disorders, such as coeliac disease.
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Affiliation(s)
- Benjamin D McDonald
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Pathology, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Bana Jabri
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Pathology, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Albert Bendelac
- Committee on Immunology, University of Chicago, Chicago, IL, USA. .,Department of Pathology, University of Chicago, Chicago, IL, USA.
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30
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Cheminant M, Bruneau J, Malamut G, Sibon D, Guegan N, van Gils T, Cording S, Trinquand A, Verkarre V, Lhermitte L, Brousse N, Jannot AS, Khater S, Frenzel L, Delarue R, Suarez F, Marçais A, Mulder CJ, Macintyre E, Asnafi V, Pouyet L, Bonnafous C, Lhospice F, Molina TJ, Meresse B, Cellier C, Cerf-Bensussan N, Hermine O. NKp46 is a diagnostic biomarker and may be a therapeutic target in gastrointestinal T-cell lymphoproliferative diseases: a CELAC study. Gut 2019; 68:1396-1405. [PMID: 30448772 DOI: 10.1136/gutjnl-2018-317371] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/15/2018] [Accepted: 11/05/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Primary GI T-cell lymphoproliferative diseases (T-LPD) are heterogeneous entities, which raise difficult diagnosis and therapeutic challenges. We have recently provided evidences that lymphomas complicating coeliac disease (CD) arise from innate-like lymphocytes, which may carry NK receptors (NKRs). DESIGN NKRs expression was compared by flow cytometry in intraepithelial lymphocytes (IEL) from CD, type I or type II refractory CD (RCD). NKp46 was next assessed by immunohistochemistry in paraffin-embedded biopsies from 204 patients with CD, RCDI, RCDII or GI T-cell lymphomas and from a validation cohort of 61 patients. The cytotoxic properties of an anti-NKp46 monoclonal antibody conjugated to pyrrolobenzodiazepine (PBD) was tested ex vivo in human primary tumour cells isolated from fresh duodenal biopsies. RESULTS NKp46 (but not CD94, NKG2A, NKG2C, NKG2D) was significantly more expressed by malignant RCDII IEL than by normal IEL in CD and RCDI. In paraffin biopsies, detection of >25 NKp46+ IEL per 100 epithelial cells discriminated RCDII from CD and RCDI. NKp46 was also detected in enteropathy-associated T-cell lymphomas (EATL, 24/29) and in monomorphic epitheliotropic intestinal T-cell lymphomas (MEITL, 4/4) but not in indolent T-LPD (0/15). Treatment with anti-NKp46-PBD could efficiently and selectively kill human NKp46+ primary IEL ex vivo. CONCLUSION NKp46 is a novel biomarker useful for diagnosis and therapeutic stratification of GI T-LPD. Strong preclinical rationale identifies anti-NKp46-PBD as a promising therapy for RCDII, EATL and MEITL.
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Affiliation(s)
- Morgane Cheminant
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1163 & CNRS URL 8254, Imagine Institute, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
| | - Julie Bruneau
- INSERM UMR1163 & CNRS URL 8254, Imagine Institute, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Pathology Department, Necker-Enfants Malades University Hospital, AP-HP, Paris, France
| | - Georgia Malamut
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Department of Gastroenterology, HEGP Hospital, AP-HP, Paris, France.,INSERM UMR1163, Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - David Sibon
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1163 & CNRS URL 8254, Imagine Institute, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
| | - Nicolas Guegan
- INSERM UMR1163, Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - Tom van Gils
- Department of Gastroenterology, VU University Medical Center, Amsterdam, The Netherlands
| | - Sascha Cording
- INSERM UMR1163, Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - Amélie Trinquand
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Biological Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1151, Necker-Enfants Malades Institute, Paris, France
| | - Virginie Verkarre
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Pathology Department, Necker-Enfants Malades University Hospital, AP-HP, Paris, France
| | - Ludovic Lhermitte
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Biological Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1151, Necker-Enfants Malades Institute, Paris, France
| | - Nicole Brousse
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Pathology Department, Necker-Enfants Malades University Hospital, AP-HP, Paris, France
| | - Anne-Sophie Jannot
- Biomedical Informatics and Public Health Department, HEGP Hospital, AP-HP, Paris, France
| | - Sherine Khater
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Department of Gastroenterology, HEGP Hospital, AP-HP, Paris, France
| | - Laurent Frenzel
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1163 & CNRS URL 8254, Imagine Institute, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
| | - Richard Delarue
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
| | - Felipe Suarez
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1163 & CNRS URL 8254, Imagine Institute, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
| | - Ambroise Marçais
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
| | - Chris Jj Mulder
- Department of Gastroenterology, VU University Medical Center, Amsterdam, The Netherlands
| | - Elizabeth Macintyre
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Biological Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1151, Necker-Enfants Malades Institute, Paris, France
| | - Vahid Asnafi
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Biological Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1151, Necker-Enfants Malades Institute, Paris, France
| | | | | | | | - Thierry Jo Molina
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Pathology Department, Necker-Enfants Malades University Hospital, AP-HP, Paris, France
| | - Bertrand Meresse
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,INSERM UMR1163, Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - Christophe Cellier
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,Department of Gastroenterology, HEGP Hospital, AP-HP, Paris, France.,INSERM UMR1163, Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - Nadine Cerf-Bensussan
- Paris Descartes University-Sorbonne Paris Cité, Paris, France.,INSERM UMR1163, Laboratory of Intestinal Immunity, Imagine Institute, Paris, France
| | - Olivier Hermine
- Clinical Haematology, Necker-Enfants Malades University Hospital, AP-HP, Paris, France.,INSERM UMR1163 & CNRS URL 8254, Imagine Institute, Paris, France.,Paris Descartes University-Sorbonne Paris Cité, Paris, France
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31
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Goel G, Tye-Din JA, Qiao SW, Russell AK, Mayassi T, Ciszewski C, Sarna VK, Wang S, Goldstein KE, Dzuris JL, Williams LJ, Xavier RJ, Lundin KEA, Jabri B, Sollid LM, Anderson RP. Cytokine release and gastrointestinal symptoms after gluten challenge in celiac disease. SCIENCE ADVANCES 2019; 5:eaaw7756. [PMID: 31457091 PMCID: PMC6685723 DOI: 10.1126/sciadv.aaw7756] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 06/28/2019] [Indexed: 05/10/2023]
Abstract
Celiac disease (CeD), caused by immune reactions to cereal gluten, is treated with gluten -elimination diets. Within hours of gluten exposure, either perorally or extraorally by intradermal injection, treated patients experience gastrointestinal symptoms. To test whether gluten exposure leads to systemic cytokine production time -related to symptoms, series of multiplex cytokine measurements were obtained in CeD patients after gluten challenge. Peptide injection elevated at least 15 plasma cytokines, with IL-2, IL-8, and IL-10 being most prominent (fold-change increase at 4 hours of 272, 11, and 1.2, respectively). IL-2 and IL-8 were the only cytokines elevated at 2 hours, preceding onset of symptoms. After gluten ingestion, IL-2 was the earliest and most prominent cytokine (15-fold change at 4 hours). Supported by studies of patient-derived gluten-specific T cell clones and primary lymphocytes, our observations indicate that gluten-specific CD4+ T cells are rapidly reactivated by antigen -exposure likely causing CeD-associated gastrointestinal symptoms.
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Affiliation(s)
- Gautam Goel
- Division of Gastroenterology and Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Jason A. Tye-Din
- Immunology Division, The Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Department of Gastroenterology, The Royal Melbourne Hospital, Parkville, VIC, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Parkville, VIC, Australia
| | - Shuo-Wang Qiao
- Department of Immunology and KG Jebsen Coeliac Disease Research Centre, University of Oslo and Oslo University Hospital-Rikshospitalet, Oslo, Norway
| | - Amy K. Russell
- Immunology Division, The Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Toufic Mayassi
- Department of Pediatrics, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Cezary Ciszewski
- Department of Pediatrics, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Vikas K. Sarna
- Department of Immunology and KG Jebsen Coeliac Disease Research Centre, University of Oslo and Oslo University Hospital-Rikshospitalet, Oslo, Norway
| | | | | | | | | | - Ramnik J. Xavier
- Division of Gastroenterology and Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Knut E. A. Lundin
- Department of Gastroenterology and KG Jebsen Coeliac Disease Research Centre, University of Oslo and Oslo University Hospital-Rikshospitalet, Oslo, Norway
| | - Bana Jabri
- Department of Pediatrics, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Ludvig M. Sollid
- Department of Immunology and KG Jebsen Coeliac Disease Research Centre, University of Oslo and Oslo University Hospital-Rikshospitalet, Oslo, Norway
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32
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Ouni N, Chaaben AB, Kablouti G, Ayari F, Douik H, Abaza H, Gara S, Elgaaied-Benammar A, Guemira F, Tamouza R. The Impact of HLA-G 3'UTR Polymorphisms in Breast Cancer in a Tunisian Population. Immunol Invest 2019; 48:521-532. [PMID: 30945586 DOI: 10.1080/08820139.2019.1569043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Human leukocyte antigens G and E (HLA-G and HLA-E) are nonclassical major histocompatibility complex (MHC) class I molecules. These molecules play an important role in immune surveillance by inhibiting natural killer and cytotoxic T cells responsible for immune escape. The expression of HLA-G and HLA-E has been associated with several diseases including tumor. The main objective of the study is to evaluate the impact of three HLA-G 3'UTR potential polymorphisms: +3187 A > G (rs9380142), +3142 G > C (rs1063320), +2960 14-base pair (bp) Insertion/Deletion (Ins/Del) (rs66554220), and the HLA-E*01:01/01:03 A > G (rs1264457) polymorphism in Tunisian breast cancer population. A total of 355 patients and 381 controls were genotyping for HLA-G and HLA-E polymorphisms using a Taq Man assay. +3142 C allele and +3142 C/C genotype were significantly associated with increased risk of breast cancer (p = 0.00002; OR = 1.58; 95% CI = 27-1.97) (49% versus 35%; p = 0.0001; OR = 1.79; 95% CI = 1.32-2.44). In addition, Del allele and the homozygous state for Del/Del genotype confer a risk for breast cancer (52% versus 45%, p = 0.006; OR = 1.33, 95% CI = 1.08-1.64) (28% versus 22%, p = 0.039; OR = 1.43, 95% CI = 0.90-2.25). However, no statistical significant differences were reported for HLA-G + 3187 A > G and HLA-E variations and breast cancer in a Tunisian population. The found results indicate that HLA-G may play an important role in the breast cancer.
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Affiliation(s)
- Nesrine Ouni
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Arij Ben Chaaben
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
- b Jean Dausset Laboratory and INSERM, U1160 , Saint Louis Hospital , Paris , France
| | - Ghalia Kablouti
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Fayza Ayari
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Hayet Douik
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Hajer Abaza
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Sonia Gara
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Amel Elgaaied-Benammar
- c Immunology Department, Faculty of Mathematics, Physics and Natural Sciences , Tunis El Manar University , Tunis , Tunisia
| | - Fethi Guemira
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Ryad Tamouza
- d INSERM, U955, Translational Psychiatry , Paris-East University , Creteil , France
- e AP-HP, DHU PePSY, Department of Psychiatry , Hôpital Henri Mondor, Université Paris-Est-Creteil , Creteil , France
- f Fondation FondaMental , Creteil , France
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33
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Costes LMM, Lindenbergh-Kortleve DJ, van Berkel LA, Veenbergen S, Raatgeep HRC, Simons-Oosterhuis Y, van Haaften DH, Karrich JJ, Escher JC, Groeneweg M, Clausen BE, Cupedo T, Samsom JN. IL-10 signaling prevents gluten-dependent intraepithelial CD4 + cytotoxic T lymphocyte infiltration and epithelial damage in the small intestine. Mucosal Immunol 2019; 12:479-490. [PMID: 30542112 DOI: 10.1038/s41385-018-0118-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 10/18/2018] [Accepted: 11/16/2018] [Indexed: 02/04/2023]
Abstract
Breach of tolerance to gluten leads to the chronic small intestinal enteropathy celiac disease. A key event in celiac disease development is gluten-dependent infiltration of activated cytotoxic intraepithelial lymphocytes (IELs), which cytolyze epithelial cells causing crypt hyperplasia and villous atrophy. The mechanisms leading to gluten-dependent small intestinal IEL infiltration and activation remain elusive. We have demonstrated that under homeostatic conditions in mice, gluten drives the differentiation of anti-inflammatory T cells producing large amounts of the immunosuppressive cytokine interleukin-10 (IL-10). Here we addressed whether this dominant IL-10 axis prevents gluten-dependent infiltration of activated cytotoxic IEL and subsequent small intestinal enteropathy. We demonstrate that IL-10 regulation prevents gluten-induced cytotoxic inflammatory IEL infiltration. In particular, IL-10 suppresses gluten-induced accumulation of a specialized population of cytotoxic CD4+CD8αα+ IEL (CD4+ CTL) expressing Tbx21, Ifng, and Il21, and a disparate non-cytolytic CD4+CD8α- IEL population expressing Il17a, Il21, and Il10. Concomitantly, IL-10 suppresses gluten-dependent small intestinal epithelial hyperproliferation and upregulation of stress-induced molecules on epithelial cells. Remarkably, frequencies of granzyme B+CD4+CD8α+ IEL are increased in pediatric celiac disease patient biopsies. These findings demonstrate that IL-10 is pivotal to prevent gluten-induced small intestinal inflammation and epithelial damage, and imply that CD4+ CTL are potential new players into these processes.
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Affiliation(s)
- L M M Costes
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - D J Lindenbergh-Kortleve
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - L A van Berkel
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - S Veenbergen
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - H R C Raatgeep
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - Y Simons-Oosterhuis
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - D H van Haaften
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands
| | - J J Karrich
- Department of Hematology, Erasmus University Medical Center, Rotterdam, 3000 CA, The Netherlands
| | - J C Escher
- Department of Pediatric Gastroenterology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - M Groeneweg
- Department of Pediatrics, Maasstad Hospital, Rotterdam, 3079 DZ, The Netherlands
| | - B E Clausen
- Institute for Molecular Medicine, University Medical Center of Johannes Gutenberg University, Mainz, 55131, Germany
| | - T Cupedo
- Department of Hematology, Erasmus University Medical Center, Rotterdam, 3000 CA, The Netherlands
| | - J N Samsom
- Laboratory of Pediatrics, Division of Gastroenterology and Nutrition, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, 3000 CA, The Netherlands.
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34
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Lutter L, Hoytema van Konijnenburg DP, Brand EC, Oldenburg B, van Wijk F. The elusive case of human intraepithelial T cells in gut homeostasis and inflammation. Nat Rev Gastroenterol Hepatol 2018; 15:637-649. [PMID: 29973676 DOI: 10.1038/s41575-018-0039-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The epithelial barrier of the gastrointestinal tract is home to numerous intraepithelial T cells (IETs). IETs are functionally adapted to the mucosal environment and are among the first adaptive immune cells to encounter microbial and dietary antigens. They possess hallmark features of tissue-resident T cells: they are long-lived nonmigratory cells capable of rapidly responding to antigen challenges independent of T cell recruitment from the periphery. Gut-resident T cells have been implicated in the relapsing and remitting course and persisting low-grade inflammation of chronic gastrointestinal diseases, including IBD and coeliac disease. So far, most data IETs have been derived from experimental animal models; however, IETs and the environmental makeup differ between mice and humans. With advances in techniques, the number of human studies has grown exponentially in the past 5 years. Here, we review the literature on the involvement of human IETs in gut homeostasis and inflammation, and how these cells are influenced by the microbiota and dietary antigens. Finally, targeting of IETs in therapeutic interventions is discussed. Broad insight into the function and role of human IETs in gut homeostasis and inflammation is essential to identify future diagnostic, prognostic and therapeutic strategies.
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Affiliation(s)
- Lisanne Lutter
- Laboratory of Translational Immunology, Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, Netherlands.,Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, Netherlands
| | - David P Hoytema van Konijnenburg
- Laboratory of Translational Immunology, Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, Netherlands.,Laboratory of Mucosal Immunology, The Rockefeller University, New York, NY, USA
| | - Eelco C Brand
- Laboratory of Translational Immunology, Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, Netherlands.,Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Bas Oldenburg
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Femke van Wijk
- Laboratory of Translational Immunology, Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, Netherlands.
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35
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Mayassi T, Jabri B. Human intraepithelial lymphocytes. Mucosal Immunol 2018; 11:1281-1289. [PMID: 29674648 PMCID: PMC6178824 DOI: 10.1038/s41385-018-0016-5] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/02/2018] [Accepted: 02/03/2018] [Indexed: 02/04/2023]
Abstract
The location of intraepithelial lymphocytes (IEL) between epithelial cells, their effector memory, cytolytic and inflammatory phenotype positions them to kill infected epithelial cells and protect the intestine against pathogens. Human TCRαβ+CD8αβ+ IEL have the dual capacity to recognize modified self via natural killer (NK) receptors (autoreactivity) as well as foreign antigen via the T cell receptor (TCR), which is accomplished in mouse by two cell subsets, the naturally occurring TCRαβ+CD8αα+ and adaptively induced TCRαβ+CD8αβ+ IEL subsets, respectively. The private/oligoclonal nature of the TCR repertoire of both human and mouse IEL suggests local environmental factors dictate the specificity of IEL responses. The line between sensing of foreign antigens and autoreactivity is blurred for IEL in celiac disease, where recognition of stress ligands by induced activating NK receptors in conjunction with inflammatory signals such as IL-15 can result in low-affinity TCR/non-cognate antigen and NK receptor/stress ligand interactions triggering destruction of intestinal epithelial cells.
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Affiliation(s)
- Toufic Mayassi
- Department of Medicine, University of Chicago, Chicago, USA
- Committee on Immunology, University of Chicago, Chicago, USA
| | - Bana Jabri
- Department of Medicine, University of Chicago, Chicago, USA.
- Committee on Immunology, University of Chicago, Chicago, USA.
- Department of Pathology, University of Chicago, Chicago, USA.
- Department of Pediatrics, University of Chicago, Chicago, USA.
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36
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López Casado MÁ, Lorite P, Ponce de León C, Palomeque T, Torres MI. Celiac Disease Autoimmunity. Arch Immunol Ther Exp (Warsz) 2018; 66:423-430. [PMID: 30167716 DOI: 10.1007/s00005-018-0520-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 07/06/2018] [Indexed: 01/14/2023]
Abstract
Celiac disease is an autoimmune condition triggered by the ingestion of gluten, the protein fraction of wheat, barley and rye. It is not simply an intestinal disease; it is multifactorial caused by many different genetic factors acting together with non-genetic causes. Similar to other autoimmune diseases, celiac disease is a polygenic disorder for which the major histocompatibility complex locus is the most important genetic factor, and is the result of an immune response to self-antigens leading to tissue destruction and the autoantibodies production. Celiac disease exemplifies how an illness can have autoimmune-like features having to be driven by exogenous antigen and how can be reasonably considered as a model of organ-specific autoimmunity.
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Affiliation(s)
| | - Pedro Lorite
- Department of Experimental Biology, University of Jaén, Jaén, Spain
| | | | - Teresa Palomeque
- Department of Experimental Biology, University of Jaén, Jaén, Spain
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37
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Murray JA, Frey MR, Oliva-Hemker M. Celiac Disease. Gastroenterology 2018; 154:2005-2008. [PMID: 29550590 PMCID: PMC6203336 DOI: 10.1053/j.gastro.2017.12.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/19/2017] [Accepted: 12/21/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Joseph A. Murray
- Professor of Medicine, Director, Celiac Disease Program, Mayo Clinic, 200 1st St SW, Rochester, MN 55905. Tel: 507-255-5713. Fax: 507-255-6318
| | - Mark R. Frey
- Associate Professor of Pediatrics and Biochemistry & Molecular Medicine, The Saban Research Institute at Children’s Hospital Los Angeles, University of Southern California, 4650 Sunset Blvd, Mailstop #137, Los Angeles, CA 90027. Tel: 323-361-7204
| | - Maria Oliva-Hemker
- Stermer Family Professor of Pediatric Inflammatory Bowel Disease, Director, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Johns Hopkins University School of Medicine, CMSC 2-116, 600 N. Wolfe Street, Baltimore, MD 21287-2631. Tel: 410-955-8769. Fax: 410-955-1464
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38
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Olivares-Villagómez D, Van Kaer L. Intestinal Intraepithelial Lymphocytes: Sentinels of the Mucosal Barrier. Trends Immunol 2018; 39:264-275. [PMID: 29221933 PMCID: PMC8056148 DOI: 10.1016/j.it.2017.11.003] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/14/2017] [Accepted: 11/15/2017] [Indexed: 02/06/2023]
Abstract
Intestinal intraepithelial lymphocytes (IELs) are a large and diverse population of lymphoid cells that reside between the intestinal epithelial cells (IECs) that form the intestinal mucosal barrier. Although IEL biology has traditionally focused on T cells, recent studies have identified several subsets of T cell receptor (TCR)-negative IELs with intriguing properties. New insight into the development, homeostasis, and functions of distinct IEL subsets has recently been provided. Additional studies have revealed intricate interactions between different IEL subsets, reciprocal interactions between IELs and IECs, and communication of IELs with immune cells that reside outside the intestinal epithelium. We review here sentinel functions of IELs in the maintenance of the mucosal barrier integrity, as well as how dysregulated IEL responses can contribute to pathology.
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Affiliation(s)
- Danyvid Olivares-Villagómez
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA.
| | - Luc Van Kaer
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA.
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39
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Jabri B, Sollid LM. T Cells in Celiac Disease. THE JOURNAL OF IMMUNOLOGY 2017; 198:3005-3014. [PMID: 28373482 DOI: 10.4049/jimmunol.1601693] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/30/2017] [Indexed: 12/30/2022]
Abstract
Celiac disease is a human T cell-mediated autoimmune-like disorder caused by exposure to dietary gluten in genetically predisposed individuals. This review will discuss how CD4 T cell responses directed against an exogenous Ag can cause an autoreactive B cell response and participate in the licensing of intraepithelial lymphocytes to kill intestinal epithelial cells. Furthermore, this review will examine the mechanisms by which intraepithelial cytotoxic T cells mediate tissue destruction in celiac disease.
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Affiliation(s)
- Bana Jabri
- Department of Medicine, University of Chicago, Chicago, IL 60637; .,Department of Pathology, University of Chicago, Chicago, IL 60637.,Department of Pediatrics, University of Chicago, Chicago, IL 60637; and
| | - Ludvig M Sollid
- Department of Immunology, Centre for Immune Regulation, K.G. Jebsen Coeliac Disease Research Centre, University of Oslo and Oslo University Hospital-Rikshospitalet, N-0372 Oslo, Norway
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40
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Zundler S, Neurath MF. Pathogenic T cell subsets in allergic and chronic inflammatory bowel disorders. Immunol Rev 2017; 278:263-276. [DOI: 10.1111/imr.12544] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sebastian Zundler
- Department of Medicine 1; University of Erlangen-Nuremberg; Kussmaul Campus for Medical Research & Translational Research Center; Erlangen Germany
| | - Markus F. Neurath
- Department of Medicine 1; University of Erlangen-Nuremberg; Kussmaul Campus for Medical Research & Translational Research Center; Erlangen Germany
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41
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McWilliams EM, Mele JM, Cheney C, Timmerman EA, Fiazuddin F, Strattan EJ, Mo X, Byrd JC, Muthusamy N, Awan FT. Therapeutic CD94/NKG2A blockade improves natural killer cell dysfunction in chronic lymphocytic leukemia. Oncoimmunology 2016; 5:e1226720. [PMID: 27853650 DOI: 10.1080/2162402x.2016.1226720] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/13/2016] [Accepted: 08/16/2016] [Indexed: 01/28/2023] Open
Abstract
Natural killer (NK)-cell count is predictive of chronic lymphoid leukemia (CLL) disease progression and their dysfunction is well documented, but the etiology of this is currently lacking. CLL cells have been shown to over-express HLA-E, the natural ligand for NKG2A expressed on NK-cells that generates a distinct negative signal relative to direct NK-cell cytotoxicity in other disease models. Utilizing a novel anti-NKG2A monoclonal blocking antibody (mAb), monalizumab, we explored the in vitro preclinical activity of targeting the NKG2A receptor, and the NKG2A/HLA-E interaction as a mechanism of tumor evasion in CLL patients. Our work confirmed overexpression of HLA-E on CLL B-cells and demonstrated NKG2A expression on CD56+/16+ NK-cells from CLL patients. We also demonstrate that blocking NKG2A on CLL NK-cells was sufficient to restore direct cytotoxicity ability of NK-cells against HLA-E-expressing targets without impacting NK-cell mediated antibody-dependent cellular cytotoxicity. Additionally, we proved the specificity of monalizumab in blocking NKG2A through Fc-blocking mechanisms. This paper provides justification for the potential clinical utility of monalizumab in the treatment of patients with CLL.
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Affiliation(s)
- Emily M McWilliams
- Biomedical Sciences Graduate Program, The Ohio State University, Columbus, OH, USA; Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Jennifer M Mele
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Carolyn Cheney
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Elizabeth A Timmerman
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Faraz Fiazuddin
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Ethan J Strattan
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Xiaokui Mo
- Center for Biostatistics, The Ohio State University , Columbus, OH, USA
| | - John C Byrd
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Natarajan Muthusamy
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
| | - Farrukh T Awan
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University , Columbus, OH, USA
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42
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New insights into immune mechanisms underlying autoimmune diseases of the gastrointestinal tract. Autoimmun Rev 2015; 14:1161-9. [DOI: 10.1016/j.autrev.2015.08.004] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 08/05/2015] [Indexed: 02/07/2023]
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43
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IL-15 functions as a danger signal to regulate tissue-resident T cells and tissue destruction. Nat Rev Immunol 2015; 15:771-83. [PMID: 26567920 DOI: 10.1038/nri3919] [Citation(s) in RCA: 192] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this Opinion article, we discuss the function of tissues as a crucial checkpoint for the regulation of effector T cell responses, and the notion that interleukin-15 (IL-15) functions as a danger molecule that communicates to the immune system that the tissue is under attack and poises it to mediate tissue destruction. More specifically, we propose that expression of IL-15 in tissues promotes T helper 1 cell-mediated immunity and provides co-stimulatory signals to effector cytotoxic T cells to exert their effector functions and drive tissue destruction. Therefore, we think that IL-15 contributes to tissue protection by promoting the elimination of infected cells but that when its expression is chronically dysregulated, it can promote the development of complex T cell-mediated disorders associated with tissue destruction, such as coeliac disease and type 1 diabetes.
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Setty M, Discepolo V, Abadie V, Kamhawi S, Mayassi T, Kent A, Ciszewski C, Maglio M, Kistner E, Bhagat G, Semrad C, Kupfer SS, Green PH, Guandalini S, Troncone R, Murray JA, Turner JR, Jabri B. Distinct and Synergistic Contributions of Epithelial Stress and Adaptive Immunity to Functions of Intraepithelial Killer Cells and Active Celiac Disease. Gastroenterology 2015; 149:681-91.e10. [PMID: 26001928 PMCID: PMC4550536 DOI: 10.1053/j.gastro.2015.05.013] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 04/27/2015] [Accepted: 05/12/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The mechanisms of tissue destruction during progression of celiac disease are poorly defined. It is not clear how tissue stress and adaptive immunity contribute to the activation of intraepithelial cytotoxic T cells and the development of villous atrophy. We analyzed epithelial cells and intraepithelial cytotoxic T cells in family members of patients with celiac disease, who were without any signs of adaptive antigluten immunity, and in potential celiac disease patients, who have antibodies against tissue transglutaminase 2 in the absence of villous atrophy. METHODS We collected blood and intestinal biopsy specimens from 268 patients at tertiary medical centers in the United States and Italy from 2004 to 2012. All subjects had normal small intestinal histology. Study groups included healthy individuals with no family history of celiac disease or antibodies against tissue transglutaminase 2 (controls), healthy family members of patients with celiac disease, and potential celiac disease patients. Intraepithelial cytotoxic T cells were isolated and levels of inhibitory and activating natural killer (NK) cells were measured by flow cytometry. Levels of heat shock protein (HSP) and interleukin 15 were measured by immunohistochemistry, and ultrastructural alterations in intestinal epithelial cells (IECs) were assessed by electron microscopy. RESULTS IECs from subjects with a family history of celiac disease, but not from subjects who already had immunity to gluten, expressed higher levels of HS27, HSP70, and interleukin-15 than controls; their IECs also had ultrastructural alterations. Intraepithelial cytotoxic T cells from relatives of patients with celiac disease expressed higher levels of activating NK receptors than cells from controls, although at lower levels than patients with active celiac disease, and without loss of inhibitory receptors for NK cells. Intraepithelial cytotoxic T cells from potential celiac disease patients failed to up-regulate activating NK receptors. CONCLUSIONS A significant subset of healthy family members of patients with celiac disease with normal intestinal architecture had epithelial alterations, detectable by immunohistochemistry and electron microscopy. The adaptive immune response to gluten appears to act in synergy with epithelial stress to allow intraepithelial cytotoxic T cells to kill epithelial cells and induce villous atrophy in patients with active celiac disease.
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Affiliation(s)
- Mala Setty
- Section of Gastroenterology, Department of Pediatrics and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Valentina Discepolo
- Section of Gastroenterology, Department of Pediatrics and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA,European Laboratory for the Investigation of Food-Induced Disorders (ELFID), Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II. Naples, Italy,Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA,CEINGE-Biotecnologie Avanzate, via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Valérie Abadie
- Sainte-Justine Hospital Research Center, Department of Microbiology, Infectiology and Immunology, Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Sarah Kamhawi
- Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Toufic Mayassi
- Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Andrew Kent
- Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Cezary Ciszewski
- Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Maria Maglio
- European Laboratory for the Investigation of Food-Induced Disorders (ELFID), Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II. Naples, Italy
| | - Emily Kistner
- Department of Health Studies, University of Chicago, Chicago (IL), USA
| | - Govind Bhagat
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - Carol Semrad
- Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Sonia S Kupfer
- Section of Gastroenterology, Department of Medicine and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Peter H Green
- Department of Medicine, Celiac Disease Center, Columbia University Medical Center, New York, New York, USA
| | - Stefano Guandalini
- Section of Gastroenterology, Department of Pediatrics and University of Chicago Celiac Disease Center, University of Chicago, Chicago (IL), USA
| | - Riccardo Troncone
- European Laboratory for the Investigation of Food-Induced Disorders (ELFID), Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II. Naples, Italy
| | - Joseph A Murray
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Jerrold R Turner
- Department of Medicine, University of Chicago, Chicago, Illinois; Department of Pathology, University of Chicago, Chicago, Illinois.
| | - Bana Jabri
- Department of Pediatrics, University of Chicago, Chicago, Illinois; Department of Medicine, University of Chicago, Chicago, Illinois.
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Tang F, Sally B, Lesko K, Discepolo V, Abadie V, Ciszewski C, Semrad C, Guandalini S, Kupfer SS, Jabri B. Cysteinyl leukotrienes mediate lymphokine killer activity induced by NKG2D and IL-15 in cytotoxic T cells during celiac disease. ACTA ACUST UNITED AC 2015; 212:1487-95. [PMID: 26304964 PMCID: PMC4577841 DOI: 10.1084/jem.20150303] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 08/06/2015] [Indexed: 11/21/2022]
Abstract
Tang et al. show that cytotoxic effector cells produce and respond to cysteinyl leukotrienes to allow target cell killing dependent on NKG2D and IL-15. They further demonstrate a role for cysteinyl leukotrienes in celiac disease pathogenesis. Eicosanoids are inflammatory mediators that play a key but incompletely understood role in linking the innate and adaptive immune systems. Here, we show that cytotoxic effector T cells (CTLs) are capable of both producing and responding to cysteinyl leukotrienes (CystLTs), allowing for the killing of target cells in a T cell receptor–independent manner. This process is dependent on the natural killer receptor NKG2D and exposure to IL-15, a cytokine induced in distressed tissues. IL-15 and NKG2D signaling drives the up-regulation of key enzymes implicated in the synthesis of CystLTs, as well as the expression of CystLT receptors, suggesting a positive feedback loop. Finally, although the CystLT pathway has been previously linked to various allergic disorders, we provide unexpected evidence for its involvement in the pathogenesis of celiac disease (CD), a T helper 1 cell–mediated enteropathy induced by gluten. These findings provide new insights into the cytolytic signaling pathway of NKG2D and the pathogenesis of organ-specific immune disorders. Furthermore, they suggest that the blockade of CystLT receptors may represent a potent therapeutic target for CD or potentially other autoimmune disorders in which NKG2D has been implicated.
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Affiliation(s)
- Fangming Tang
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Benjamin Sally
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Kathryn Lesko
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Valentina Discepolo
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 European Laboratory for the Investigation of Food-Induced Disorders (ELFID), Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II, 80138 Naples, Italy
| | - Valerie Abadie
- Sainte-Justine Hospital Research Center, Department of Microbiology, Infectiology, and Immunology, Faculty of Medicine, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Cezary Ciszewski
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Carol Semrad
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Stefano Guandalini
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Sonia S Kupfer
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
| | - Bana Jabri
- Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637 Department of Medicine, University of Chicago Celiac Disease Center, and Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, IL 60637
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Nata T, Basheer A, Cocchi F, van Besien R, Massoud R, Jacobson S, Azimi N, Tagaya Y. Targeting the binding interface on a shared receptor subunit of a cytokine family enables the inhibition of multiple member cytokines with selectable target spectrum. J Biol Chem 2015; 290:22338-51. [PMID: 26183780 DOI: 10.1074/jbc.m115.661074] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Indexed: 02/04/2023] Open
Abstract
The common γ molecule (γc) is a shared signaling receptor subunit used by six γc-cytokines. These cytokines play crucial roles in the differentiation of the mature immune system and are involved in many human diseases. Moreover, recent studies suggest that multiple γc-cytokines are pathogenically involved in a single disease, thus making the shared γc-molecule a logical target for therapeutic intervention. However, the current therapeutic strategies seem to lack options to treat such cases, partly because of the lack of appropriate neutralizing antibodies recognizing the γc and, more importantly, because of the inherent and practical limitations in the use of monoclonal antibodies. By targeting the binding interface of the γc and cytokines, we successfully designed peptides that not only inhibit multiple γc-cytokines but with a selectable target spectrum. Notably, the lead peptide inhibited three γc-cytokines without affecting the other three or non-γc-cytokines. Biological and mutational analyses of our peptide provide new insights to our current understanding on the structural aspect of the binding of γc-cytokines the γc-molecule. Furthermore, we provide evidence that our peptide, when conjugated to polyethylene glycol to gain stability in vivo, efficiently blocks the action of one of the target cytokines in animal models. Collectively, our technology can be expanded to target various combinations of γc-cytokines and thereby will provide a novel strategy to the current anti-cytokine therapies against immune, inflammatory, and malignant diseases.
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Affiliation(s)
- Toshie Nata
- From the Cell Biology Laboratory, Division of Basic Science, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | | | - Fiorenza Cocchi
- From the Cell Biology Laboratory, Division of Basic Science, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Richard van Besien
- From the Cell Biology Laboratory, Division of Basic Science, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Raya Massoud
- the Section of Neuroimmunology, NINDS, National Institutes of Health, Bethesda, Maryland 20890
| | - Steven Jacobson
- the Section of Neuroimmunology, NINDS, National Institutes of Health, Bethesda, Maryland 20890
| | | | - Yutaka Tagaya
- From the Cell Biology Laboratory, Division of Basic Science, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201,
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Aryl Hydrocarbon Receptor Activation Down-Regulates IL-7 and Reduces Inflammation in a Mouse Model of DSS-Induced Colitis. Dig Dis Sci 2015; 60:1958-66. [PMID: 25799939 DOI: 10.1007/s10620-015-3632-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 03/11/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS The pathogenesis of inflammatory bowel disease (IBD) is associated with dysregulation of intestinal immune system. Aryl hydrocarbon receptor (AHR) is believed to control the chronic inflammation in the gut. Besides, interleukin-7 (IL-7) is proved to be an important cytokine that activates mucosal inflammation in IBD. Moreover, intraepithelial lymphocytes (IELs) are one of the key immunological compartments involved in regulating intestinal inflammation. In this study, we investigated the function of 6-formylindolo (3,2-b) carbazole (Ficz), a ligand of AHR, on IL-7, colitis, and IEL phenotypes. METHODS Colitis was induced by administration of dextran sulfate sodium (DSS) to wild-type C57BL/6J mice for 7 days. Mice were weighted, colon tissues were collected and measured, and histology analyses were performed. IELs were isolated from colon, and the phenotype and activation of IELs were examined using flow cytometry detection. The expression of AHR and IL-7 was measured by immunofluorescence, Western blot, and RT-PCR. RESULTS Ficz down-regulated epithelial-derived IL-7 expression in mice with DSS-induced colitis and ameliorated DSS-induced colitis. Ficz also decreased CD8αβ(+) and CD8(+) IEL subpopulations, enhanced TCRγδ(+) IEL subpopulation, and reduced the percentage of activated CD4(+) and CD8(+) subpopulations. CONCLUSIONS Ficz could down-regulate epithelial-derived IL-7 expression in mice with DSS-induced colitis and inhibit inflammation in the gastrointestinal tract of mice. AHR-related compounds might be the new and promising therapeutic medicaments for the treatment of patients with IBD.
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Kim SM, Mayassi T, Jabri B. Innate immunity: actuating the gears of celiac disease pathogenesis. Best Pract Res Clin Gastroenterol 2015; 29:425-35. [PMID: 26060107 PMCID: PMC4465077 DOI: 10.1016/j.bpg.2015.05.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/01/2015] [Accepted: 05/02/2015] [Indexed: 01/31/2023]
Abstract
Celiac disease is a T cell mediated immune disorder characterized by the loss of oral tolerance to dietary gluten and the licensing of intraepithelial lymphocytes to kill intestinal epithelial cells, leading to villous atrophy. Innate immunity plays a critical role in both of these processes and cytokines such as interleukin-15 and interferon-α can modulate innate processes such as polarization of dendritic cells as well as intraepithelial lymphocyte function. These cytokines can be modulated by host microbiota, which can also influence dendritic cell function and intraepithelial lymphocyte homeostasis. We will elaborate on the role of interleukin-15, interferon-α, and the microbiota in modulating the processes that lead to loss of tolerance to gluten and tissue destruction in celiac disease.
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Affiliation(s)
- Sangman Michael Kim
- Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
| | - Toufic Mayassi
- Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
| | - Bana Jabri
- Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Pathology, University of Chicago, Chicago, IL 60637, USA; Department of Pediatrics, University of Chicago, Chicago, IL 60637, USA.
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Bani M, Seket J, Kaabi H, Cherif G, Chaabane M, Bellali H, Hmida S. Killer cell immunoglobulin-like receptor (KIR) locus profiles in the Tunisian population. Hum Immunol 2015; 76:355-61. [DOI: 10.1016/j.humimm.2015.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 02/17/2015] [Accepted: 03/11/2015] [Indexed: 10/23/2022]
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Meresse B, Korneychuk N, Malamut G, Cerf-Bensussan N. Interleukin-15, a master piece in the immunological jigsaw of celiac disease. Dig Dis 2015; 33:122-130. [PMID: 25925912 DOI: 10.1159/000369521] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND The immune response causing celiac disease (CD) depends on the activation of intestinal CD4+ T cells by gluten-derived peptides presented by HLA-DQ2 or HLA-DQ8 molecules, the main genetic risk factor. However, additional factors are necessary to impair immune tolerance to dietary gluten, to stimulate intraepithelial lymphocytes (IEL) and to induce intestinal damage. KEY MESSAGES Current data point to a central role of interleukin-15 (IL-15). In situ and ex vivo studies indicate that IL-15 stimulates the accumulation and cytotoxic activation of CD8+ T IEL in active CD, and that of the malignant innate-like IEL in type II refractory CD (RCDII). Other studies show that IL-15 impairs the immunoregulatory control of effector T cells, notably CD8+. Recently, animal models have been designed to investigate the respective role of CD4+ T cells and IL-15 in CD. We discuss more particularly our results in such a model, which shows that IL-15 produced in excess in the intestine can cooperate with CD4+ T cells specific for a dietary antigen to trigger a celiac-like enteropathy. In this mouse model, CD4+ T cells activated by dietary ovalbumin secreted IL-2 which, along with IL-15, stimulated the expansion of noncognate intestinal cytotoxic CD8+ T cells containing large amounts of granzyme B. In the presence of IL-15, the latter cells did not respond to regulatory T cells, and accumulated in the intestine close to epithelial damage. CONCLUSION On the basis of these data, we propose that, in CD, gluten-specific CD4+ T cells synthesize cytokines that synergize with IL-15 to license the expansion and activation of cytotoxic IEL, which drive tissue damage. We suggest that IL-15 is a meaningful therapeutic target, notably in patients with RCDII in which malignant IEL can respond to IL-15 independently of signals provided by CD4+ T cells.
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