1
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Heinl PV, Graulich E, Weigmann B, Wangorsch A, Ose R, Bellinghausen I, Khatri R, Raker VK, Scheurer S, Vieths S, Saloga J, Steinbrink K. IL-10-modulated dendritic cells from birch pollen- and hazelnut-allergic patients facilitate Treg-mediated allergen-specific and cross-reactive tolerance. Allergy 2024. [PMID: 39073174 DOI: 10.1111/all.16255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 06/19/2024] [Accepted: 07/06/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND Approximately 70% of individuals allergic to birch pollen (Bet v 1.01 [Bet]) develop a secondary food allergy (e.g., hazelnut: Cor a 1.04 [Cor]), due to allergen cross-reactivity. However, standard immunotherapy for type I allergies often does not improve the food allergy sufficiently. We analyzed the allergen-specific and cross-reactive suppressive capacity of primary human regulatory T cells (Treg) induced by autologous IL-10-modulated dendritic cells (IL-10 DC) in vitro and in vivo. METHODS CD4+ T cells of patients with birch pollen and associated hazelnut allergies were differentiated into Bet-specific or non-specific induced Treg (iTreg). After Bet- or Cor-specific restimulation the phenotype, proliferation, and suppressive capacity of iTreg subsets were analyzed. iTreg function was further investigated in humanized mouse models of airway and intestinal allergy, generated by engraftment of peripheral blood mononuclear cells from allergic donors into immunodeficient animals. RESULTS After IL-10 DC priming and allergen-specific restimulation (Bet or Cor), non-specific control iTreg remained anergic, whereas Bet-specific iTreg proliferated extensively and exhibited a regulatory phenotype (enhanced expression of CTLA-4, PD-1, TNFR2, IL-10). Accordingly, activated Bet-specific iTreg displayed a high capacity to suppress Bet- and Cor-induced responder Th2 cell responses in vitro, indicating induction of both allergen-specific (birch) and cross-reactive tolerance (hazelnut). In vivo, the beneficial effect of Bet-specific iTreg was verified in humanized mouse models of allergic airway and intestinal inflammation, resulting in reduced allergen-induced clinical symptoms, and immune responses. CONCLUSION Human IL-10 DC-induced iTreg facilitate allergen-specific and cross-reactive tolerance. Therefore, they are potential candidates for regulatory cell therapy in allergic and autoimmune diseases.
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Affiliation(s)
- Patricia Vanessa Heinl
- Department of Dermatology, Division for Experimental and Translational Research, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Edith Graulich
- Department of Dermatology, Division for Experimental and Translational Research, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Benno Weigmann
- Department of Internal Medicine, University Hospital Erlangen, University Erlangen-Nürnberg, Erlangen, Germany
| | | | - Robert Ose
- Department of Dermatology, University Medical Center of the Johannes, Gutenberg-University, Mainz, Germany
| | - Iris Bellinghausen
- Department of Dermatology, University Medical Center of the Johannes, Gutenberg-University, Mainz, Germany
| | - Rahul Khatri
- Department of Dermatology, University Medical Center of the Johannes, Gutenberg-University, Mainz, Germany
| | - Verena K Raker
- Department of Dermatology, University Hospital Münster, University of Münster, Münster, Germany
| | | | - Stefan Vieths
- Molecular Allergology, Paul-Ehrlich-Institute, Langen, Germany
| | - Joachim Saloga
- Department of Dermatology, University Medical Center of the Johannes, Gutenberg-University, Mainz, Germany
| | - Kerstin Steinbrink
- Department of Dermatology, University Hospital Münster, University of Münster, Münster, Germany
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2
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Wenger V, Zeiser R. Editorial: Current concepts of cellular and biological drugs to modulate regulatory T cell activity in the clinic, volume II. Front Immunol 2023; 14:1221904. [PMID: 37383231 PMCID: PMC10294709 DOI: 10.3389/fimmu.2023.1221904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 06/01/2023] [Indexed: 06/30/2023] Open
Affiliation(s)
- Valentin Wenger
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Robert Zeiser
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Signaling Research Centre for Biological Signalling Studies (BIOSS) Freiburg and CIBSS – Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- Comprehensive Cancer Center Freiburg (CCCF), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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3
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Tay C, Tanaka A, Sakaguchi S. Tumor-infiltrating regulatory T cells as targets of cancer immunotherapy. Cancer Cell 2023; 41:450-465. [PMID: 36917950 DOI: 10.1016/j.ccell.2023.02.014] [Citation(s) in RCA: 97] [Impact Index Per Article: 97.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 01/27/2023] [Accepted: 02/14/2023] [Indexed: 03/16/2023]
Abstract
Regulatory T cells (Tregs) are abundant in tumor tissues, raising a question of whether immunosuppressive tumor-infiltrating Tregs (TI-Tregs) can be selectively depleted or functionally attenuated to evoke effective anti-tumor immune responses by conventional T cells (Tconvs), without perturbing Treg-dependent immune homeostasis in healthy organs and causing autoimmunity. Here, we review current cancer immunotherapy strategies, including immune checkpoint blockade (ICB) antibodies against CTLA-4 and PD-1 and discuss their effects on TI-Tregs. We also discuss approaches that exploit differentially regulated molecules on the cell surface (e.g., CTLA-4) and intracellularly (e.g., T cell receptor signaling molecules) between TI-Tregs and Tconvs as well as their dependence on cytokines (e.g., IL-2) and metabolites (e.g., lactate). We envisage that targeting TI-Tregs could be effective as a monotherapy and/or when combined with ICB antibodies.
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Affiliation(s)
- Christopher Tay
- Experimental Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Atsushi Tanaka
- Experimental Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Shimon Sakaguchi
- Experimental Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan.
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4
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Zimmer N, Trzeciak ER, Graefen B, Satoh K, Tuettenberg A. GARP as a Therapeutic Target for the Modulation of Regulatory T Cells in Cancer and Autoimmunity. Front Immunol 2022; 13:928450. [PMID: 35898500 PMCID: PMC9309211 DOI: 10.3389/fimmu.2022.928450] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Regulatory T cells (Treg) play a critical role in immune homeostasis by suppressing several aspects of the immune response. Herein, Glycoprotein A repetitions predominant (GARP), the docking receptor for latent transforming growth factor (LTGF-β), which promotes its activation, plays a crucial role in maintaining Treg mediated immune tolerance. After activation, Treg uniquely express GARP on their surfaces. Due to its location and function, GARP may represent an important target for immunotherapeutic approaches, including the inhibition of Treg suppression in cancer or the enhancement of suppression in autoimmunity. In the present review, we will clarify the cellular and molecular regulation of GARP expression not only in human Treg but also in other cells present in the tumor microenvironment. We will also examine the overall roles of GARP in the regulation of the immune system. Furthermore, we will explore potential applications of GARP as a predictive and therapeutic biomarker as well as the targeting of GARP itself in immunotherapeutic approaches.
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Affiliation(s)
- Niklas Zimmer
- Department of Dermatology, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Emily R. Trzeciak
- Department of Dermatology, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Barbara Graefen
- Department of Dermatology, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kazuki Satoh
- Early Clinical Development Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan
| | - Andrea Tuettenberg
- Department of Dermatology, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
- Research Center for Immunotherapy, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
- *Correspondence: Andrea Tuettenberg,
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5
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Hou J, Wang X, Su C, Ma W, Zheng X, Ge X, Duan X. Reduced frequencies of Foxp3 +GARP + regulatory T cells in COPD patients are associated with multi-organ loss of tissue phenotype. Respir Res 2022; 23:176. [PMID: 35780120 PMCID: PMC9250745 DOI: 10.1186/s12931-022-02099-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/23/2022] [Indexed: 11/23/2022] Open
Abstract
Background Expression of glycoprotein A dominant repeat (GARP) has been reported to occur only in activated human naturally occurring regulatory T cells (Tregs) and their clones, and not in activated effector T cells, indicating that GARP is a marker for bona fide Tregs. A different phenotype of chronic obstructive pulmonary disease (COPD) may have a different immunologic mechanism. Objective To investigate whether the distribution of Tregs defined by GARP is related to the multi-organ loss of tissue phenotype in COPD. Methods GARP expression on T cells from peripheral blood and bronchoalveolar lavage (BAL) collected from patients with COPD was examined by flow cytometry. The correlation of GARP expression to clinical outcomes and clinical phenotype, including the body mass index, lung function and quantitative computed tomography (CT) scoring of emphysema, was analyzed. Results Patients with more baseline emphysema had lower forced expiratory volume, body mass index (BMI), worse functional capacity, and more osteoporosis, thus, resembling the multiple organ loss of tissue (MOLT) phenotype. Peripheral Foxp3+GARP+ Tregs are reduced in COPD patients, and this reduction reversely correlates with quartiles of CT emphysema severity in COPD. Meanwhile, the frequencies of Foxp3+GARP− Tregs, which are characteristic of pro-inflammatory cytokine production, are significantly increased in COPD patients, and correlated with increasing quartiles of CT emphysema severity in COPD. Tregs in BAL show a similar pattern of variation in peripheral blood. Conclusion Decreased GARP expression reflects more advanced disease in MOLT phenotype of COPD. Our results have potential implications for better understanding of the immunological nature of COPD and the pathogenic events leading to lung damage. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02099-2.
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Affiliation(s)
- Jia Hou
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China.
| | - Xia Wang
- Ningxia Medical University, Ningxia, China
| | - Chunxia Su
- Department of Pathogen Biology and Immunology, School of Basic Medical Science, Ningxia Medical University, Ningxia, China
| | - Weirong Ma
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China
| | - Xiwei Zheng
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China
| | - Xiahui Ge
- Department of Respiratory Medicine, Seventh People's Hospital of Shanghai University of TCM, Shanghai, China.
| | - Xiangguo Duan
- College of Clinical Medicine, Ningxia Medical University, Ningxia, China.
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6
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Bellinghausen I, Khatri R, Saloga J. Current Strategies to Modulate Regulatory T Cell Activity in Allergic Inflammation. Front Immunol 2022; 13:912529. [PMID: 35720406 PMCID: PMC9205643 DOI: 10.3389/fimmu.2022.912529] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/02/2022] [Indexed: 12/12/2022] Open
Abstract
Over the past decades, atopic diseases, including allergic rhinitis, asthma, atopic dermatitis, and food allergy, increased strongly worldwide, reaching up to 50% in industrialized countries. These diseases are characterized by a dominating type 2 immune response and reduced numbers of allergen-specific regulatory T (Treg) cells. Conventional allergen-specific immunotherapy is able to tip the balance towards immunoregulation. However, in mouse models of allergy adaptive transfer of Treg cells did not always lead to convincing beneficial results, partially because of limited stability of their regulatory phenotype activity. Besides genetic predisposition, it has become evident that environmental factors like a westernized lifestyle linked to modern sanitized living, the early use of antibiotics, and the consumption of unhealthy foods leads to epithelial barrier defects and dysbiotic microbiota, thereby preventing immune tolerance and favoring the development of allergic diseases. Epigenetic modification of Treg cells has been described as one important mechanism in this context. In this review, we summarize how environmental factors affect the number and function of Treg cells in allergic inflammation and how this knowledge can be exploited in future allergy prevention strategies as well as novel therapeutic approaches.
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Affiliation(s)
- Iris Bellinghausen
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Rahul Khatri
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Joachim Saloga
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
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7
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Nasrallah R, Imianowski CJ, Bossini-Castillo L, Grant FM, Dogan M, Placek L, Kozhaya L, Kuo P, Sadiyah F, Whiteside SK, Mumbach MR, Glinos D, Vardaka P, Whyte CE, Lozano T, Fujita T, Fujii H, Liston A, Andrews S, Cozzani A, Yang J, Mitra S, Lugli E, Chang HY, Unutmaz D, Trynka G, Roychoudhuri R. A distal enhancer at risk locus 11q13.5 promotes suppression of colitis by T reg cells. Nature 2020; 583:447-452. [PMID: 32499651 PMCID: PMC7116706 DOI: 10.1038/s41586-020-2296-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 03/10/2020] [Indexed: 02/02/2023]
Abstract
Genetic variations underlying susceptibility to complex autoimmune and allergic diseases are concentrated within noncoding regulatory elements termed enhancers1. The functions of a large majority of disease-associated enhancers are unknown, in part owing to their distance from the genes they regulate, a lack of understanding of the cell types in which they operate, and our inability to recapitulate the biology of immune diseases in vitro. Here, using shared synteny to guide loss-of-function analysis of homologues of human enhancers in mice, we show that the prominent autoimmune and allergic disease risk locus at chromosome 11q13.52-7 contains a distal enhancer that is functional in CD4+ regulatory T (Treg) cells and required for Treg-mediated suppression of colitis. The enhancer recruits the transcription factors STAT5 and NF-κB to mediate signal-driven expression of Lrrc32, which encodes the protein glycoprotein A repetitions predominant (GARP). Whereas disruption of the Lrrc32 gene results in early lethality, mice lacking the enhancer are viable but lack GARP expression in Foxp3+ Treg cells, which are unable to control colitis in a cell-transfer model of the disease. In human Treg cells, the enhancer forms conformational interactions with the promoter of LRRC32 and enhancer risk variants are associated with reduced histone acetylation and GARP expression. Finally, functional fine-mapping of 11q13.5 using CRISPR-activation (CRISPRa) identifies a CRISPRa-responsive element in the vicinity of risk variant rs11236797 capable of driving GARP expression. These findings provide a mechanistic basis for association of the 11q13.5 risk locus with immune-mediated diseases and identify GARP as a potential target in their therapy.
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Affiliation(s)
- Rabab Nasrallah
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
| | - Charlotte J Imianowski
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK.
- Department of Pathology, University of Cambridge, Cambridge, UK.
| | | | - Francis M Grant
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
| | | | | | | | - Paula Kuo
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Firas Sadiyah
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Sarah K Whiteside
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Maxwell R Mumbach
- Howard Hughes Medical Institute and Center for Personal Dynamic Regulomes, Stanford University School of Medicine, Stanford, CA, USA
| | - Dafni Glinos
- Immune Genomics Group, Wellcome Sanger Institute, Cambridge, UK
| | - Panagiota Vardaka
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Carly E Whyte
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
| | - Teresa Lozano
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
| | - Toshitsugu Fujita
- Chromatin Biochemistry Research Group, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Department of Biochemistry and Genome Biology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hodaka Fujii
- Chromatin Biochemistry Research Group, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Department of Biochemistry and Genome Biology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Adrian Liston
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
| | - Simon Andrews
- Bioinformatics Group, The Babraham Institute, Cambridge, UK
| | - Adeline Cozzani
- Inserm UMR1277/CNRS9020, Institut pour la Recherche sur le Cancer de Lille, Lille, France
| | - Jie Yang
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Suman Mitra
- Inserm UMR1277/CNRS9020, Institut pour la Recherche sur le Cancer de Lille, Lille, France
| | - Enrico Lugli
- Humanitas Clinical and Research Center, Milan, Italy
| | - Howard Y Chang
- Howard Hughes Medical Institute and Center for Personal Dynamic Regulomes, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Gosia Trynka
- Immune Genomics Group, Wellcome Sanger Institute, Cambridge, UK.
- Open Targets, Wellcome Genome Campus, Cambridge, UK.
| | - Rahul Roychoudhuri
- Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge, UK.
- Department of Pathology, University of Cambridge, Cambridge, UK.
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Ito R, Maruoka S, Gon Y, Katano I, Takahashi T, Ito M, Izuhara K, Nunomura S. Recent Advances in Allergy Research Using Humanized Mice. Int J Mol Sci 2019; 20:ijms20112740. [PMID: 31167385 PMCID: PMC6600417 DOI: 10.3390/ijms20112740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/31/2019] [Accepted: 06/01/2019] [Indexed: 12/18/2022] Open
Abstract
The prevalence rates of allergic diseases are increasing worldwide, particularly in industrial countries. To date, many mouse models have been generated for allergy research; studies conducted using these models have suggested the importance of cross-talk between immune cells and tissue-resident non-immune cells in the onset of allergic diseases. However, there are several differences between the immune systems of rodents and humans, and human studies are limited. Thus, mice reconstituted with human immune cells are a novel tool for the preclinical evaluation of the efficacy and safety of developing drugs. Genetic technologies for generating humanized mice have improved markedly in recent years. In this review, we will discuss recent progress in allergy research using humanized mice and introduce our recent humanized mouse model of airway inflammation in human immune cells.
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Affiliation(s)
- Ryoji Ito
- Central Institute for Experimental Animals (CIEA), Kawasaki 210-0821, Japan.
| | - Shuichiro Maruoka
- Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan.
| | - Yasuhiro Gon
- Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan.
| | - Ikumi Katano
- Central Institute for Experimental Animals (CIEA), Kawasaki 210-0821, Japan.
| | - Takeshi Takahashi
- Central Institute for Experimental Animals (CIEA), Kawasaki 210-0821, Japan.
| | - Mamoru Ito
- Central Institute for Experimental Animals (CIEA), Kawasaki 210-0821, Japan.
| | - Kenji Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga 849-0937, Japan.
| | - Satoshi Nunomura
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga 849-0937, Japan.
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9
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Schinnerling K, Rosas C, Soto L, Thomas R, Aguillón JC. Humanized Mouse Models of Rheumatoid Arthritis for Studies on Immunopathogenesis and Preclinical Testing of Cell-Based Therapies. Front Immunol 2019; 10:203. [PMID: 30837986 PMCID: PMC6389733 DOI: 10.3389/fimmu.2019.00203] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/23/2019] [Indexed: 01/12/2023] Open
Abstract
Rodent models of rheumatoid arthritis (RA) have been used over decades to study the immunopathogenesis of the disease and to explore intervention strategies. Nevertheless, mouse models of RA reach their limit when it comes to testing of new therapeutic approaches such as cell-based therapies. Differences between the human and the murine immune system make it difficult to draw reliable conclusions about the success of immunotherapies. To overcome this issue, humanized mouse models have been established that mimic components of the human immune system in mice. Two main strategies have been pursued for humanization: the introduction of human transgenes such as human leukocyte antigen molecules or specific T cell receptors, and the generation of mouse/human chimera by transferring human cells or tissues into immunodeficient mice. Recently, both approaches have been combined to achieve more sophisticated humanized models of autoimmune diseases. This review discusses limitations of conventional mouse models of RA-like disease and provides a closer look into studies in humanized mice exploring their usefulness and necessity as preclinical models for testing of cell-based therapies in autoimmune diseases such as RA.
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Affiliation(s)
- Katina Schinnerling
- Programa Disciplinario de Inmunología, Immune Regulation and Tolerance Research Group, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile.,Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Carlos Rosas
- Departamento de Ciencias Morfológicas, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Lilian Soto
- Programa Disciplinario de Inmunología, Immune Regulation and Tolerance Research Group, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile.,Unidad de Dolor, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Ranjeny Thomas
- Diamantina Institute, Translational Research Institute, Princess Alexandra Hospital, University of Queensland, Brisbane, QLD, Australia
| | - Juan Carlos Aguillón
- Programa Disciplinario de Inmunología, Immune Regulation and Tolerance Research Group, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile
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10
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Bellinghausen I, Weigmann B, Zevallos V, Maxeiner J, Reißig S, Waisman A, Schuppan D, Saloga J. Wheat amylase-trypsin inhibitors exacerbate intestinal and airway allergic immune responses in humanized mice. J Allergy Clin Immunol 2018; 143:201-212.e4. [PMID: 29574077 DOI: 10.1016/j.jaci.2018.02.041] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 01/26/2018] [Accepted: 02/05/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND Amylase-trypsin inhibitors (ATIs) in wheat and related cereals are potent activators of myeloid innate immune cells via engagement of TLR4. Furthermore, ATIs have been shown to serve as adjuvants in experimental intestinal inflammatory diseases. OBJECTIVE The aim of this study was to analyze whether ATIs are also modifiers of allergic inflammation. METHODS Therefore, CD4+ T cells from donors sensitized to grass or birch pollen were stimulated with autologous allergen-pulsed dendritic cells in the presence or absence of ATIs or the control storage protein zein from corn. To analyze allergen-induced gut and lung inflammation, immunodeficient mice were engrafted with PBMCs from these allergic donors plus the respective allergen, and fed with selected diets. Three weeks later, inflammation was induced by rectal or intranasal allergen challenge and monitored by mini endoscopy or airway hyperreactivity, respectively. RESULTS Allergen-specific T-cell proliferation and cytokine production was significantly exacerbated by ATIs and not by zein. In vivo, allergen-specific human IgE level was strongly elevated in sera of mice receiving an ATI-containing diet compared with mice that were fed gluten-free and thus ATI-free diet. Importantly, allergen-induced IgE-dependent colitis and airway hyperreactivity were also enhanced in ATI-fed mice. Gut inflammation was further increased in mice receiving an additional ATI injection and even detectable in the absence of the aeroallergen, whereas zein had no such effect. Injection of anti-human TLR4 mAbs or the anti-human IgE mAb omalizumab completely abolished ATI-induced allergic inflammation. CONCLUSIONS These results underline that wheat ATIs are important nutritional activators and adjuvants of allergy, which might be exploited for nutritional therapeutic strategies.
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Affiliation(s)
- Iris Bellinghausen
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany; Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany.
| | - Benno Weigmann
- Department of Internal Medicine I, University Hospital Erlangen, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Victor Zevallos
- Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany; Institute of Translational Immunology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Joachim Maxeiner
- Asthma Core Facility, Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Sonja Reißig
- Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany; Institute for Molecular Medicine, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Ari Waisman
- Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany; Institute for Molecular Medicine, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Detlef Schuppan
- Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany; Institute of Translational Immunology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Joachim Saloga
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany; Research Center for Immunotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany
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11
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Metelli A, Salem M, Wallace CH, Wu BX, Li A, Li X, Li Z. Immunoregulatory functions and the therapeutic implications of GARP-TGF-β in inflammation and cancer. J Hematol Oncol 2018; 11:24. [PMID: 29458436 PMCID: PMC5819195 DOI: 10.1186/s13045-018-0570-z] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 02/06/2018] [Indexed: 12/12/2022] Open
Abstract
GARP (glycoprotein-A repetitions predominant) is a type I transmembrane cell surface docking receptor for latent transforming growth factor-β (TGF-β) that is abundantly expressed on regulatory T lymphocytes and platelets. GARP regulates the availability of membrane-bound latent TGF-β and modulates its activation. For this reason, GARP expression on immune and non-immune cells is involved in maintaining peripheral tolerance. It plays an important role in preventing inflammatory diseases such as allergy and graft versus host disease (GvHD). GARP is also frequently hijacked by cancer cells to promote oncogenesis. This review summarizes the most important features of GARP biology described to date including gene regulation, protein expression and mechanism in activating latent TGF-β, and the function of GARP in regulatory T cell biology and peripheral tolerance, as well as GARP’s increasingly recognized roles in platelet-mediated cancer immune evasion. The promise for GARP-targeted strategy as a novel immunotherapy of cancer is also highlighted.
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Affiliation(s)
- Alessandra Metelli
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Mohammad Salem
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Caroline H Wallace
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Bill X Wu
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Anqi Li
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Xue Li
- Children's Hospital Boston, Harvard Medical School, Boston, MA, 02115, USA
| | - Zihai Li
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA. .,The First Affiliated Hospital, Zhengzhou University School of Medicine, Zhengzhou, 450052, China.
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GARP: a surface molecule of regulatory T cells that is involved in the regulatory function and TGF-β releasing. Oncotarget 2018; 7:42826-42836. [PMID: 27095576 PMCID: PMC5173174 DOI: 10.18632/oncotarget.8753] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 04/04/2016] [Indexed: 12/30/2022] Open
Abstract
There are many molecules that define regulatory T cells (Tregs) phenotypically and functionally. Glycoprotein A repetitions predominant (GARP) is a transmembrane protein containing leucine rich repeats. Recently, GARP is found to express highly on the surface of activated Tregs. The combination of GARP and other surface molecules isolates Tregs with higher purity. Besides, GARP is a cell surface molecule of Tregs that maintains their regulatory function and homeosatsis. GARP has also been proved to promote the activation and secretion of transforming growth factor β (TGF-β). Moreover, its potential value in cancer immunotherapy is also discussed in this work.
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Fujiwara S. Humanized mice: A brief overview on their diverse applications in biomedical research. J Cell Physiol 2017; 233:2889-2901. [PMID: 28543438 DOI: 10.1002/jcp.26022] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 05/19/2017] [Indexed: 02/06/2023]
Abstract
Model animals naturally differ from humans in various respects and results from the former are not directly translatable to the latter. One approach to address this issue is humanized mice that are defined as mice engrafted with functional human cells or tissues. In humanized mice, we can investigate the development and function of human cells or tissues (including their products encoded by human genes) in the in vivo context of a small animal. As such, humanized mouse models have played important roles that cannot be substituted by other animal models in various areas of biomedical research. Although there are obvious limitations in humanized mice and we may need some caution in interpreting the results obtained from them, it is reasonably expected that they will be utilized in increasingly diverse areas of biomedical research, as the technology for preparing humanized mice are rapidly improved. In this review, I will describe the methodology for generating humanized mice and overview their recent applications in various disciplines including immunology, infectious diseases, drug metabolism, and neuroscience.
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Affiliation(s)
- Shigeyoshi Fujiwara
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan.,Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Itabashi-ku, Tokyo, Japan
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Jensen-Jarolim E, Pali-Schöll I, Roth-Walter F. Outstanding animal studies in allergy I. From asthma to food allergy and anaphylaxis. Curr Opin Allergy Clin Immunol 2017; 17:169-179. [PMID: 28346234 PMCID: PMC5424575 DOI: 10.1097/aci.0000000000000363] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE OF REVIEW Animal models published within the past 18 months on asthma, food allergy and anaphylaxis, all conditions of rising public health concern, were reviewed. RECENT FINDINGS While domestic animals spontaneously develop asthma, food allergy and anaphylaxis, in animal models, divergent sensitization and challenge routes, dosages, intervals and antigens are used to induce asthmatic, food allergic or anaphylactic phenotypes. This must be considered in the interpretation of results. Instead of model antigens, gradually relevant allergens such as house dust mite in asthma, and food allergens like peanut, apple and peach in food allergy research were used. Novel engineered mouse models such as a mouse with a T-cell receptor for house dust mite allergen Der p 1, or with transgenic human hFcγR genes, facilitated the investigation of single molecules of interest. Whole-body plethysmography has become a state-of-the-art in-vivo readout in asthma research. In food allergy and anaphylaxis research, novel techniques were developed allowing real-time monitoring of in-vivo effects following allergen challenge. Networks to share tissues were established as an effort to reduce animal experiments in allergy which cannot be replaced by in-vitro measures. SUMMARY Natural and artificial animal models were used to explore the pathophysiology of asthma, food allergy and anaphylaxis and to improve prophylactic and therapeutic measures. Especially the novel mouse models mimicking molecular aspects of the complex immune network in asthma, food allergy and anaphylaxis will facilitate proof-of-concept studies under controlled conditions.
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Affiliation(s)
- Erika Jensen-Jarolim
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University of Vienna, Vienna, Austria
| | - Isabella Pali-Schöll
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University of Vienna, Vienna, Austria
| | - Franziska Roth-Walter
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University of Vienna, Vienna, Austria
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Shevach EM. Garp as a therapeutic target for modulation of T regulatory cell function. Expert Opin Ther Targets 2016; 21:191-200. [PMID: 28001437 DOI: 10.1080/14728222.2017.1275568] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Foxp3+ T regulatory cells (Tregs) play critical roles in immune homeostasis primarily by suppressing many aspects of the immune response. Tregs uniquely express GARP on their cell surface and GARP functions as a delivery system for latent TGF-β. As Treg-derived TGF-β may mediate the suppressive functions of Tregs, GARP may represent a target to inhibit Treg suppression in cancer or augment suppression in autoimmunity. Areas covered: This article will focus on 1) the role of Treg-derived TGF-β in the suppressive activity of Treg, 2) the cellular and molecular regulation of expression of GARP on mouse and human Tregs, 3) the role of integrins in the activation of latent-TGF-β/GARP complex, 4) an overview of our present understanding of the function of the latent-TGF-β/GARP complex. Expert opinion: Two approaches are outlined for targeting the L-TGF-β1/GARP complex for therapeutic purposes. Tregs play a major role in suppressive effector T cell responses to tumors and TGF-β1 may be a major contributor to this process. One approach is to specifically block the production of active TGF-β1 from Tregs as an adjunct to tumor immunotherapy. The second approach in autoimmunity is to selectively enhance the production of TGF-β by Tregs at sites of chronic inflammation.
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Affiliation(s)
- Ethan M Shevach
- a Laboratory of Immunology , National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda , MD , USA
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Walsh NC, Kenney LL, Jangalwe S, Aryee KE, Greiner DL, Brehm MA, Shultz LD. Humanized Mouse Models of Clinical Disease. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2016; 12:187-215. [PMID: 27959627 DOI: 10.1146/annurev-pathol-052016-100332] [Citation(s) in RCA: 380] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Immunodeficient mice engrafted with functional human cells and tissues, that is, humanized mice, have become increasingly important as small, preclinical animal models for the study of human diseases. Since the description of immunodeficient mice bearing mutations in the IL2 receptor common gamma chain (IL2rgnull) in the early 2000s, investigators have been able to engraft murine recipients with human hematopoietic stem cells that develop into functional human immune systems. These mice can also be engrafted with human tissues such as islets, liver, skin, and most solid and hematologic cancers. Humanized mice are permitting significant progress in studies of human infectious disease, cancer, regenerative medicine, graft-versus-host disease, allergies, and immunity. Ultimately, use of humanized mice may lead to the implementation of truly personalized medicine in the clinic. This review discusses recent progress in the development and use of humanized mice and highlights their utility for the study of human diseases.
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Affiliation(s)
- Nicole C Walsh
- Department of Molecular Medicine, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Laurie L Kenney
- Department of Molecular Medicine, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Sonal Jangalwe
- Department of Molecular Medicine, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Ken-Edwin Aryee
- Department of Molecular Medicine, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Dale L Greiner
- Department of Molecular Medicine, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Michael A Brehm
- Department of Molecular Medicine, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, Massachusetts 01605
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Meyer-Martin H, Hahn SA, Beckert H, Belz C, Heinz A, Jonuleit H, Becker C, Taube C, Korn S, Buhl R, Reuter S, Tuettenberg A. GARP inhibits allergic airway inflammation in a humanized mouse model. Allergy 2016; 71:1274-83. [PMID: 26990894 DOI: 10.1111/all.12883] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2016] [Indexed: 01/04/2023]
Abstract
BACKGROUND Regulatory T cells (Treg) represent a promising target for novel treatment strategies in patients with inflammatory/allergic diseases. A soluble derivate of the Treg surface molecule glycoprotein A repetitions predominant (sGARP) has strong anti-inflammatory and regulatory effects on human cells in vitro as well as in vivo through de novo induction of peripheral Treg. The aim of this study was to investigate the immunomodulatory function of sGARP and its possible role as a new therapeutic option in allergic diseases using a humanized mouse model. METHODS To analyze the therapeutic effects of sGARP, adult NOD/Scidγc(-/-) (NSG) mice received peripheral blood mononuclear cells (PBMC) derived from allergic patients with sensitization against birch allergen. Subsequently, allergic inflammation was induced in the presence of Treg alone or in combination with sGARP. RESULTS In comparison with mice that received Treg alone, additional treatment with sGARP reduced airway hyperresponsiveness (AHR), influx of neutrophils and macrophages into the bronchoalveolar lavage (BAL), and human CD45(+) cells in the lungs. Furthermore, the numbers of mucus-producing goblet cells and inflammatory cell infiltrates were reduced. To elucidate whether the mechanism of action of sGARP involves the TGF-β receptor pathway, mice additionally received anti-TGF-β receptor II (TGF-βRII) antibodies. Blocking the signaling of TGF-β through TGF-βRII abrogated the anti-inflammatory effects of sGARP, confirming its essential role in inhibiting the allergic inflammation. CONCLUSION Induction of peripheral tolerance via sGARP is a promising potential approach to treat allergic airway diseases.
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Affiliation(s)
- H. Meyer-Martin
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - S. A. Hahn
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - H. Beckert
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - C. Belz
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - A. Heinz
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - H. Jonuleit
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - C. Becker
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - C. Taube
- The Department of Pulmonology; University Medical Center; Leiden Netherlands
| | - S. Korn
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - R. Buhl
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - S. Reuter
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - A. Tuettenberg
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
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Bellinghausen I, Saloga J. Analysis of allergic immune responses in humanized mice. Cell Immunol 2016; 308:7-12. [PMID: 27493097 DOI: 10.1016/j.cellimm.2016.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 07/13/2016] [Indexed: 12/14/2022]
Abstract
Nowadays, more than 25% of the population in industrial countries are affected by IgE-mediated (atopic) allergic diseases such as allergic rhinitis, asthma and atopic eczema. Due to intensive research on basis of in vitro studies with human immune cells and different murine in vivo models of allergy fundamental mechanisms of allergic immune responses have been elucidated during the last years. However, human studies are restricted and the immune system of mice differs from the human immune system in several aspects so that the transferability of experimental results from mice to men is limited. Humanized mice represent a new tool to analyze the interaction of human immune cells under physiological conditions as far as possible, particularly to test novel therapeutic strategies. This review summarizes the impact of humanized mouse models for the investigation and treatment of allergic diseases.
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Affiliation(s)
- Iris Bellinghausen
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany.
| | - Joachim Saloga
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
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Wawrzyniak P, Akdis CA, Finkelman FD, Rothenberg ME. Advances and highlights in mechanisms of allergic disease in 2015. J Allergy Clin Immunol 2016; 137:1681-1696. [PMID: 27090934 DOI: 10.1016/j.jaci.2016.02.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/03/2016] [Accepted: 02/17/2016] [Indexed: 01/08/2023]
Abstract
This review highlights some of the advances in mechanisms of allergic disease, particularly anaphylaxis, including food allergy, drug hypersensitivity, atopic dermatitis (AD), allergic conjunctivitis, and airway diseases. During the last year, a mechanistic advance in food allergy was achieved by focusing on mechanisms of allergen sensitization. Novel biomarkers and treatment for mastocytosis were presented in several studies. Novel therapeutic approaches in the treatment of atopic dermatitis and psoriasis showed that promising supplementation of the infant's diet in the first year of life with immunoactive prebiotics might have a preventive role against early development of AD and that therapeutic approaches to treat AD in children might be best directed to the correction of a TH2/TH1 imbalance. Several studies were published emphasizing the role of the epithelial barrier in patients with allergic diseases. An impaired skin barrier as a cause for sensitization to food allergens in children and its relationship to filaggrin mutations has been an important development. Numerous studies presented new approaches for improvement of epithelial barrier function and novel biologicals used in the treatment of inflammatory skin and eosinophilic diseases. In addition, novel transcription factors and signaling molecules that can develop as new possible therapeutic targets have been reported.
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Affiliation(s)
- Paulina Wawrzyniak
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland, Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland, Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.
| | - Fred D Finkelman
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, University of Cincinnati College of Medicine, and the Department of Medicine, Cincinnati Veterans Affairs Medical Center, Cincinnati, Ohio
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
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Hahn SA, Bellinghausen I, Trinschek B, Becker C. Translating Treg Therapy in Humanized Mice. Front Immunol 2015; 6:623. [PMID: 26697017 PMCID: PMC4677486 DOI: 10.3389/fimmu.2015.00623] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 11/30/2015] [Indexed: 12/30/2022] Open
Abstract
Regulatory T cells (Treg) control immune cell function as well as non-immunological processes. Their far-reaching regulatory activities suggest their functional manipulation as a means to sustainably and causally intervene with the course of diseases. Preclinical tools and strategies are however needed to further test and develop interventional strategies outside the human body. “Humanized” mouse models consisting of mice engrafted with human immune cells and tissues provide new tools to analyze human Treg ontogeny, immunobiology, and therapy. Here, we summarize the current state of humanized mouse models as a means to study human Treg function at the molecular level and to design strategies to harness these cells for therapeutic purposes.
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Affiliation(s)
- Susanne A Hahn
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University , Mainz , Germany
| | - Iris Bellinghausen
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University , Mainz , Germany
| | - Bettina Trinschek
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University , Mainz , Germany
| | - Christian Becker
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University , Mainz , Germany
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