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Kumagai T, Iwata A, Furuya H, Kato K, Okabe A, Toda Y, Kanai M, Fujimura L, Sakamoto A, Kageyama T, Tanaka S, Suto A, Hatano M, Kaneda A, Nakajima H. A distal enhancer of GATA3 regulates Th2 differentiation and allergic inflammation. Proc Natl Acad Sci U S A 2024; 121:e2320727121. [PMID: 38923989 PMCID: PMC11228505 DOI: 10.1073/pnas.2320727121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 05/15/2024] [Indexed: 06/28/2024] Open
Abstract
Asthma is a widespread airway disorder where GATA3-dependent Type-2 helper T (Th2) cells and group 2 innate lymphoid cells (ILC2s) play vital roles. Asthma-associated single nucleotide polymorphisms (SNPs) are enriched in a region located 926-970 kb downstream from GATA3 in the 10p14 (hG900). However, it is unknown how hG900 affects the pathogenesis of allergic airway inflammation. To investigate the roles of the asthma-associated GATA3 enhancer region in experimental allergic airway inflammation, we first examined the correlation between GATA3 expression and the activation of the hG900 region was analyzed by flow cytometry and ChIP-qPCR. We found that The activation of enhancers in the hG900 region was strongly correlated to the levels of GATA3 in human peripheral T cell subsets. We next generated mice lacking the mG900 region (mG900KO mice) were generated by the CRISPR-Cas9 system, and the development and function of helper T cells and ILCs in mG900KO mice were analyzed in steady-state conditions and allergic airway inflammation induced by papain or house dust mite (HDM). The deletion of the mG900 did not affect the development of lymphocytes in steady-state conditions or allergic airway inflammation induced by papain. However, mG900KO mice exhibited reduced allergic inflammation and Th2 differentiation in the HDM-induced allergic airway inflammation. The analysis of the chromatin conformation around Gata3 by circular chromosome conformation capture coupled to high-throughput sequencing (4C-seq) revealed that the mG900 region interacted with the transcription start site of Gata3 with an influencing chromatin conformation in Th2 cells. These findings indicate that the mG900 region plays a pivotal role in Th2 differentiation and thus enhances allergic airway inflammation.
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Affiliation(s)
- Takashi Kumagai
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Arifumi Iwata
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Hiroki Furuya
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Kodai Kato
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Atsushi Okabe
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
- Health and Disease Omics Center, Chiba University, Chiba260-8670, Japan
| | - Yosuke Toda
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Mizuki Kanai
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Lisa Fujimura
- Biomedical Research Center, Chiba University, Chiba260-8670, Japan
| | - Akemi Sakamoto
- Biomedical Research Center, Chiba University, Chiba260-8670, Japan
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Takahiro Kageyama
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Shigeru Tanaka
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Akira Suto
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Masahiko Hatano
- Biomedical Research Center, Chiba University, Chiba260-8670, Japan
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
- Health and Disease Omics Center, Chiba University, Chiba260-8670, Japan
| | - Hiroshi Nakajima
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba260-8670, Japan
- Chiba University Synergy Institute for Futuristic Mucosal Vaccine Research and Development, Chiba260-8670, Japan
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2
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Sun H, Qiu J, Qiu J. Epigenetic regulation of innate lymphoid cells. Eur J Immunol 2024:e2350379. [PMID: 38824666 DOI: 10.1002/eji.202350379] [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: 08/31/2023] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 06/04/2024]
Abstract
Innate lymphoid cells (ILCs) lack antigen-specific receptors and are considered the innate arm of the immune system, phenotypically and functionally mirroring CD4+ helper T cells. ILCs are categorized into groups 1, 2, and 3 based on transcription factors and cytokine expression. ILCs predominantly reside in mucosal tissues and play important roles in regional immune responses. The development and function of ILC subsets are controlled by both transcriptional and epigenetic mechanisms, which have been extensively studied in recent years. Epigenetic regulation refers to inheritable changes in gene expression that occur without affecting DNA sequences. This mainly includes chromatin status, histone modifications, and DNA methylation. In this review, we summarize recent discoveries on epigenetic mechanisms regulating ILC development and function, and how these regulations affect disease progression under pathological conditions. Although the ablation of specific epigenetic regulators can cause global changes in corresponding epigenetic modifications to the chromatin, only partial genes with altered epigenetic modifications change their mRNA expression, resulting in specific outcomes in cell differentiation and function. Therefore, elucidating epigenetic mechanisms underlying the regulation of ILCs will provide potential targets for the diagnosis and treatment of inflammatory diseases.
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Affiliation(s)
- Hanxiao Sun
- Department of Laboratory Medicine, Department of Blood Transfusion, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinxin Qiu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ju Qiu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
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3
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Martinez-Gonzalez I, Takei F. New insights into ILC2 memory. Immunol Rev 2024; 323:118-125. [PMID: 38506432 DOI: 10.1111/imr.13323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Group 2 Innate Lymphoid Cells (ILC2s) are innate lymphocytes involved in type 2 immunity. ILC2s are abundant at the barrier tissues and upon allergen exposure, respond to epithelial-derived alarmins by producing type 2 cytokines (e.g., IL-5 and IL-13). Upon activation, some of these activated ILC2s acquire immunological memory and can mount enhanced responses upon further allergen encounters. Here, we review recent findings of the cellular and molecular mechanisms underlying immune memory in ILC2s both in mice and humans and discuss the implications of memory ILC2s in the context of allergic diseases.
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Affiliation(s)
| | - Fumio Takei
- Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, British Columbia, Canada
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AlBloushi S, Al-Ahmad M. Exploring the immunopathology of type 2 inflammatory airway diseases. Front Immunol 2024; 15:1285598. [PMID: 38680486 PMCID: PMC11045947 DOI: 10.3389/fimmu.2024.1285598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 03/22/2024] [Indexed: 05/01/2024] Open
Abstract
Significant advancements have been achieved in understanding the roles of different immune cells, as well as cytokines and chemokines, in the pathogenesis of eosinophilic airway conditions. This review examines the pathogenesis of Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), marked by complex immune dysregulation, with major contributions from type 2 inflammation and dysfunctional airway epithelium. The presence of eosinophils and the role of T-cell subsets, particularly an imbalance between Treg and Th17 cells, are crucial to the disease's pathogenesis. The review also investigates the pathogenesis of eosinophilic asthma, a unique asthma subtype. It is characterized by inflammation and high eosinophil levels, with eosinophils playing a pivotal role in triggering type 2 inflammation. The immune response involves Th2 cells, eosinophils, and IgE, among others, all activated by genetic and environmental factors. The intricate interplay among these elements, chemokines, and innate lymphoid cells results in airway inflammation and hyper-responsiveness, contributing to the pathogenesis of eosinophilic asthma. Another scope of this review is the pathogenesis of Eosinophilic Granulomatosis with Polyangiitis (EGPA); a complex inflammatory disease that commonly affects the respiratory tract and small to medium-sized blood vessels. It is characterized by elevated eosinophil levels in blood and tissues. The pathogenesis involves the activation of adaptive immune responses by antigens leading to T and B cell activation and eosinophil stimulation, which causes tissue and vessel damage. On the other hand, Allergic Bronchopulmonary Aspergillosis (ABPA) is a hypersensitive response that occurs when the airways become colonized by aspergillus fungus, with the pathogenesis involving activation of Th2 immune responses, production of IgE antibodies, and eosinophilic action leading to bronchial inflammation and subsequent lung damage. This analysis scrutinizes how an imbalanced immune system contributes to these eosinophilic diseases. The understanding derived from this assessment can steer researchers toward designing new potential therapeutic targets for efficient control of these disorders.
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Affiliation(s)
| | - Mona Al-Ahmad
- Al-Rashed Allergy Center, Ministry of Health, Kuwait City, Kuwait
- Microbiology Department, College of Medicine, Kuwait University, Kuwait City, Kuwait
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5
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Tong Y, Wang L, Wang L, Song J, Fan J, Lai C, Bao J, Weng C, Wang Y, Shuai J, Zhang H, Zhang W. Allergen immunotherapy combined with Notch pathway inhibitors improves HDM-induced allergic airway inflammation and inhibits ILC2 activation. Front Immunol 2024; 14:1264071. [PMID: 38371944 PMCID: PMC10869474 DOI: 10.3389/fimmu.2023.1264071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/29/2023] [Indexed: 02/20/2024] Open
Abstract
Introduction Group 2 innate lymphoid cells (ILC2s) play a crucial role in house dust mite (HDM)-induced allergic inflammation, and allergen immunotherapy (AIT) holds promise for treating the disease by reducing the frequency of ILC2s. Despite significant progress in AIT for allergic diseases, there remains a need to improve the control of allergic symptoms. Methods We investigated the synergistic effect of the Notch signaling pathway and subcutaneous immunotherapy (SCIT) in treating allergic airway inflammation in mice and their impact on the ratio of ILC2s in lung tissues. This was achieved by establishing the HDM-induced airway allergic disorders (HAAD) model and SCIT model. Additionally, we conducted in vitro investigations into the effect of the Notch signaling pathway on the secretory function of activated ILC2s using fluorescence-activated cell sorting. Furthermore, we explored the coactivation of the Notch signaling pathway with SCIT in vitro by sorting ILC2s from the lung tissues of mice after SCIT modeling. Results Previously, our group demonstrated that Notch signaling pathway inhibitors can reduce allergic airway inflammation in mice. Notch signaling induces lineage plasticity of mature ILC2s. In this study, we showed that AIT alleviates allergic airway inflammation and suppresses the frequency of ILC2s induced by HDM. Interestingly, AIT combined with a γ-secretase inhibitor (GSI), an inhibitor of the Notch signaling pathway, significantly inhibited the frequency of ILC2s, reduced airway inflammation, and suppressed Th2-type responses in a mouse model. Furthermore, lung ILC2s from HDM-challenged mice with or without AIT were treated with GSI in vitro, and we found that GSI dramatically reduced the secretion of type 2 inflammatory factors in ILC2s. Discussion These findings suggest that Notch signaling pathway inhibitors can be used as adjuvant therapy for AIT and may hold potential treatment value in the cooperative control of allergic airway inflammation during early AIT.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Hui Zhang
- Department of Pediatric Allergy and Immunology, The Second Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Weixi Zhang
- Department of Pediatric Allergy and Immunology, The Second Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
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Xu S, Zhang Y, Liu X, Liu H, Zou X, Zhang L, Wang J, Zhang Z, Xu X, Li M, Li K, Shi S, Zhang Y, Miao Z, Zha J, Yu Y. Nr4a1 marks a distinctive ILC2 activation subset in the mouse inflammatory lung. BMC Biol 2023; 21:218. [PMID: 37833706 PMCID: PMC10576290 DOI: 10.1186/s12915-023-01690-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 08/25/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Group 2 innate lymphoid cells (ILC2s) are critical sources of type 2 cytokines and represent one of the major tissue-resident lymphoid cells in the mouse lung. However, the molecular mechanisms underlying ILC2 activation under challenges are not fully understood. RESULTS Here, using single-cell transcriptomics, genetic reporters, and gene knockouts, we identify four ILC2 subsets, including two non-activation subsets and two activation subsets, in the mouse acute inflammatory lung. Of note, a distinct activation subset, marked by the transcription factor Nr4a1, paradoxically expresses both tissue-resident memory T cell (Trm), and effector/central memory T cell (Tem/Tcm) signature genes, as well as higher scores of proliferation, activation, and wound healing, all driven by its particular regulons. Furthermore, we demonstrate that the Nr4a1+ILC2s are restrained from activating by the programmed cell death protein-1 (PD-1), which negatively modulates their activation-related regulons. PD-1 deficiency places the non-activation ILC2s in a state that is prone to activation, resulting in Nr4a1+ILC2 differentiation through different activation trajectories. Loss of PD-1 also leads to the expansion of Nr4a1+ILC2s by the increase of their proliferation ability. CONCLUSIONS The findings show that activated ILC2s are a heterogenous population encompassing distinct subsets that have different propensities, and therefore provide an opportunity to explore PD-1's role in modulating the activity of ILC2s for disease prevention and therapy.
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Affiliation(s)
- Shasha Xu
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Yu Zhang
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xingjie Liu
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Huisheng Liu
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xinya Zou
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Linlin Zhang
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Jing Wang
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Zhiwei Zhang
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xiang Xu
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Mingxia Li
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Kairui Li
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Shuyue Shi
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Ying Zhang
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Zhichao Miao
- Translational Research Institute of Brain and Brain-Like Intelligence and Department of Anesthesiology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200081, China
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Laboratory, Guangzhou Medical University, Guangzhou, China
| | - Jie Zha
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China.
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China.
| | - Yong Yu
- Department of Hematology, Tongji Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1HH, UK.
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7
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Falquet M, Su Z, Wyss T, Ercolano G, Trabanelli S, Jandus C. Dynamic single-cell regulomes characterize human peripheral blood innate lymphoid cell subpopulations. iScience 2023; 26:107728. [PMID: 37694139 PMCID: PMC10483052 DOI: 10.1016/j.isci.2023.107728] [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: 03/13/2023] [Revised: 07/25/2023] [Accepted: 08/21/2023] [Indexed: 09/12/2023] Open
Abstract
Innate lymphoid cells (ILCs) are plastic immune cells divided into 3 main subsets, characterized by distinct phenotypic and functional profiles. Using single cell approaches, heightened heterogeneity of mouse ILCs has been appreciated, imprinted by tissue signals that shape their transcriptome and epigenome. Intra-subset diversity has also been observed in human ILCs. However, combined transcriptomic and epigenetic analyses of single ILCs in humans are lacking. Here, we show high transcriptional and epigenetic heterogeneity among human circulating ILCs in healthy individuals. We describe phenotypically distinct subclusters and diverse chromatin accessibility within main ILC populations, compatible with differentially poised states. We validate the use of this healthy donor-based analysis as resource dataset to help inferring ILC changes occurring in disease conditions. Overall, our work provides insights in the complex human ILC biology. We anticipate it to facilitate hypothesis-driven studies in patients, without the need to perform single cell OMICs using precious patients' material.
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Affiliation(s)
- Maryline Falquet
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
- Geneva Center for Inflammation Research, Geneva, Switzerland
- Translational Research Center for Oncohematology, Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Ziyang Su
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
- Geneva Center for Inflammation Research, Geneva, Switzerland
- Translational Research Center for Oncohematology, Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Tania Wyss
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
- Geneva Center for Inflammation Research, Geneva, Switzerland
- Translational Data Science Facility, AGORA Cancer Research Center, SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
- Translational Research Center for Oncohematology, Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Giuseppe Ercolano
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Sara Trabanelli
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
- Geneva Center for Inflammation Research, Geneva, Switzerland
- Translational Research Center for Oncohematology, Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Camilla Jandus
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
- Geneva Center for Inflammation Research, Geneva, Switzerland
- Translational Research Center for Oncohematology, Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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8
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Onrust-van Schoonhoven A, de Bruijn MJW, Stikker B, Brouwer RWW, Braunstahl GJ, van IJcken WFJ, Graf T, Huylebroeck D, Hendriks RW, Stik G, Stadhouders R. 3D chromatin reprogramming primes human memory T H2 cells for rapid recall and pathogenic dysfunction. Sci Immunol 2023; 8:eadg3917. [PMID: 37418545 DOI: 10.1126/sciimmunol.adg3917] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 06/13/2023] [Indexed: 07/09/2023]
Abstract
Memory T cells provide long-lasting defense responses through their ability to rapidly reactivate, but how they efficiently "recall" an inflammatory transcriptional program remains unclear. Here, we show that human CD4+ memory T helper 2 (TH2) cells carry a chromatin landscape synergistically reprogrammed at both one-dimensional (1D) and 3D levels to accommodate recall responses, which is absent in naive T cells. In memory TH2 cells, recall genes were epigenetically primed through the maintenance of transcription-permissive chromatin at distal (super)enhancers organized in long-range 3D chromatin hubs. Precise transcriptional control of key recall genes occurred inside dedicated topologically associating domains ("memory TADs"), in which activation-associated promoter-enhancer interactions were preformed and exploited by AP-1 transcription factors to promote rapid transcriptional induction. Resting memory TH2 cells from patients with asthma showed premature activation of primed recall circuits, linking aberrant transcriptional control of recall responses to chronic inflammation. Together, our results implicate stable multiscale reprogramming of chromatin organization as a key mechanism underlying immunological memory and dysfunction in T cells.
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Affiliation(s)
- Anne Onrust-van Schoonhoven
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Cell Biology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Marjolein J W de Bruijn
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Bernard Stikker
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Rutger W W Brouwer
- Center for Biomics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Gert-Jan Braunstahl
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Respiratory Medicine, Franciscus Gasthuis and Vlietland, Rotterdam, Netherlands
| | - Wilfred F J van IJcken
- Center for Biomics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Thomas Graf
- Centre for Genomic Regulation (CRG) and Institute of Science and Technology (BIST), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Danny Huylebroeck
- Department of Cell Biology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Grégoire Stik
- Josep Carreras Leukaemia Research Institute (IJC), Badalona, Spain
| | - Ralph Stadhouders
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Cell Biology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
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9
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Loos P, Baiwir J, Maquet C, Javaux J, Sandor R, Lallemand F, Marichal T, Machiels B, Gillet L. Dampening type 2 properties of group 2 innate lymphoid cells by a gammaherpesvirus infection reprograms alveolar macrophages. Sci Immunol 2023; 8:eabl9041. [PMID: 36827420 DOI: 10.1126/sciimmunol.abl9041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Immunological dysregulation in asthma is associated with changes in exposure to microorganisms early in life. Gammaherpesviruses (γHVs), such as Epstein-Barr virus, are widespread human viruses that establish lifelong infection and profoundly shape host immunity. Using murid herpesvirus 4 (MuHV-4), a mouse γHV, we show that after infection, lung-resident and recruited group 2 innate lymphoid cells (ILC2s) exhibit a reduced ability to expand and produce type 2 cytokines in response to house dust mites, thereby contributing to protection against asthma. In contrast, MuHV-4 infection triggers GM-CSF production by those lung ILC2s, which orders the differentiation of monocytes (Mos) into alveolar macrophages (AMs) without promoting their type 2 functions. In the context of γHV infection, ILC2s are therefore essential cells within the pulmonary niche that imprint the tissue-specific identity of Mo-derived AMs and shape their function well beyond the initial acute infection.
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Affiliation(s)
- Pauline Loos
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Jérôme Baiwir
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Céline Maquet
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Justine Javaux
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Rémy Sandor
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - François Lallemand
- Centre Hospitalier Universitaire de Liège, Département de Physique Médicale, Service médical de radiothérapie, Liège 4000, Belgium
| | - Thomas Marichal
- Laboratory of Immunophysiology, GIGA-Research and Faculty of Veterinary Medicine, ULiège, Liège 4000, Belgium
| | - Bénédicte Machiels
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Laurent Gillet
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
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10
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Stikker BS, Hendriks RW, Stadhouders R. Decoding the genetic and epigenetic basis of asthma. Allergy 2023; 78:940-956. [PMID: 36727912 DOI: 10.1111/all.15666] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/17/2023] [Accepted: 01/30/2023] [Indexed: 02/03/2023]
Abstract
Asthma is a complex and heterogeneous chronic inflammatory disease of the airways. Alongside environmental factors, asthma susceptibility is strongly influenced by genetics. Given its high prevalence and our incomplete understanding of the mechanisms underlying disease susceptibility, asthma is frequently studied in genome-wide association studies (GWAS), which have identified thousands of genetic variants associated with asthma development. Virtually all these genetic variants reside in non-coding genomic regions, which has obscured the functional impact of asthma-associated variants and their translation into disease-relevant mechanisms. Recent advances in genomics technology and epigenetics now offer methods to link genetic variants to gene regulatory elements embedded within non-coding regions, which have started to unravel the molecular mechanisms underlying the complex (epi)genetics of asthma. Here, we provide an integrated overview of (epi)genetic variants associated with asthma, focusing on efforts to link these disease associations to biological insight into asthma pathophysiology using state-of-the-art genomics methodology. Finally, we provide a perspective as to how decoding the genetic and epigenetic basis of asthma has the potential to transform clinical management of asthma and to predict the risk of asthma development.
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Affiliation(s)
- Bernard S Stikker
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Ralph Stadhouders
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Cell Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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11
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Anesi N, Miquel CH, Laffont S, Guéry JC. The Influence of Sex Hormones and X Chromosome in Immune Responses. Curr Top Microbiol Immunol 2023; 441:21-59. [PMID: 37695424 DOI: 10.1007/978-3-031-35139-6_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Males and females differ in their susceptibility to develop autoimmunity and allergy but also in their capacity to cope with infections and cancers. Cellular targets and molecular pathways underlying sexual dimorphism in immunity have started to emerge and appeared multifactorial. It became increasingly clear that sex-linked biological factors have important impact on the development, tissue maintenance and effector function acquisition of distinct immune cell populations, thereby regulating multiple layers of innate or adaptive immunity through distinct mechanisms. This review discusses the recent development in our understanding of the cell-intrinsic actions of biological factors linked to sex, sex hormones and sex chromosome complement, on immune cells, which may account for the sex differences in susceptibility to autoimmune diseases and allergies, and the sex-biased responses in natural immunity and cancer.
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Affiliation(s)
- Nina Anesi
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, Toulouse, France
| | - Charles-Henry Miquel
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, Toulouse, France
| | - Sophie Laffont
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, Toulouse, France
| | - Jean-Charles Guéry
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, Toulouse, France.
- INSERM UMR1291, Centre Hospitalier Universitaire Purpan, Place du Dr. Baylac, 31024, Toulouse Cedex 3, France.
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12
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Group 2 innate lymphoid cells in human asthma. Allergol Int 2022; 72:194-200. [PMID: 36585333 DOI: 10.1016/j.alit.2022.12.001] [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: 11/24/2022] [Accepted: 11/30/2022] [Indexed: 12/30/2022] Open
Abstract
Asthma is characterized by increased airway hyperresponsiveness, reversible airflow limitation, and remodeling due to allergic airway inflammation. Asthma has been proposed to be classified into various phenotypes by cluster analyses integrating clinical information and laboratory data. Recently, asthma has been classified into two major endotypes, Type 2-high and Type 2-low asthma, and various subtypes based on the underlying molecular mechanisms. In Type 2-high asthma, Th2 cells, together with group 2 innate lymphoid cells (ILC2s), produce type 2 cytokines such as IL-4, IL-5, IL-9, and IL-13, which play crucial roles in causing airway inflammation. The roles of ILC2s in asthma pathogenesis have been analyzed primarily in murine models, demonstrating their importance not only in IL-33- or papain-induced innate asthma models but also in house dust mite (HDM)- or ovalbumin (OVA)-induced acquired asthma models evoked in an antigen-specific manner. Recently, evidence regarding the roles of ILC2s in human asthma is also accumulating. This minireview summarizes the roles of ILC2s in asthma, emphasizing human studies.
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13
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Tuazon JA, Kilburg-Basnyat B, Oldfield LM, Wiscovitch-Russo R, Dunigan-Russell K, Fedulov AV, Oestreich KJ, Gowdy KM. Emerging Insights into the Impact of Air Pollution on Immune-Mediated Asthma Pathogenesis. Curr Allergy Asthma Rep 2022; 22:77-92. [PMID: 35394608 PMCID: PMC9246904 DOI: 10.1007/s11882-022-01034-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2022] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Increases in ambient levels of air pollutants have been linked to lung inflammation and remodeling, processes that lead to the development and exacerbation of allergic asthma. Conventional research has focused on the role of CD4+ T helper 2 (TH2) cells in the pathogenesis of air pollution-induced asthma. However, much work in the past decade has uncovered an array of air pollution-induced non-TH2 immune mechanisms that contribute to allergic airway inflammation and disease. RECENT FINDINGS In this article, we review current research demonstrating the connection between common air pollutants and their downstream effects on non-TH2 immune responses emerging as key players in asthma, including PRRs, ILCs, and non-TH2 T cell subsets. We also discuss the proposed mechanisms by which air pollution increases immune-mediated asthma risk, including pre-existing genetic risk, epigenetic alterations in immune cells, and perturbation of the composition and function of the lung and gut microbiomes. Together, these studies reveal the multifaceted impacts of various air pollutants on innate and adaptive immune functions via genetic, epigenetic, and microbiome-based mechanisms that facilitate the induction and worsening of asthma.
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Affiliation(s)
- J A Tuazon
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
- Medical Scientist Training Program, The Ohio State University, Columbus, OH, 43210, USA
| | - B Kilburg-Basnyat
- Department of Pharmacology and Toxicology, East Carolina University, Greenville, NC, 27858, USA
| | - L M Oldfield
- Department of Synthetic Biology and Bioenergy, J. Craig Venter Institute, Rockville, MD, 20850, USA
- Department of Synthetic Genomics, Replay Holdings LLC, San Diego, 92121, USA
| | - R Wiscovitch-Russo
- Department of Synthetic Biology and Bioenergy, J. Craig Venter Institute, Rockville, MD, 20850, USA
| | - K Dunigan-Russell
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA
| | - A V Fedulov
- Division of Surgical Research, Department of Surgery, Alpert Medical School, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA
| | - K J Oestreich
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University, The James Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - K M Gowdy
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA.
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14
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Oliveri F, Basler M, Rao TN, Fehling HJ, Groettrup M. Immunoproteasome Inhibition Reduces the T Helper 2 Response in Mouse Models of Allergic Airway Inflammation. Front Immunol 2022; 13:870720. [PMID: 35711460 PMCID: PMC9197384 DOI: 10.3389/fimmu.2022.870720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/05/2022] [Indexed: 12/24/2022] Open
Abstract
Background Allergic asthma is a chronic disease and medical treatment often fails to fully control the disease in the long term, leading to a great need for new therapeutic approaches. Immunoproteasome inhibition impairs T helper cell function and is effective in many (auto-) inflammatory settings but its effect on allergic airway inflammation is unknown. Methods Immunoproteasome expression was analyzed in in vitro polarized T helper cell subsets. To study Th2 cells in vivo acute allergic airway inflammation was induced in GATIR (GATA-3-vYFP reporter) mice using ovalbumin and house dust mite extract. Mice were treated with the immunoproteasome inhibitor ONX 0914 or vehicle during the challenge phase and the induction of airway inflammation was analyzed. Results In vitro polarized T helper cell subsets (Th1, Th2, Th17, and Treg) express high levels of immunoproteasome subunits. GATIR mice proved to be a useful tool for identification of Th2 cells. Immunoproteasome inhibition reduced the Th2 response in both airway inflammation models. Furthermore, T cell activation and antigen-specific cytokine secretion was impaired and a reduced infiltration of eosinophils and professional antigen-presenting cells into the lung and the bronchoalveolar space was observed in the ovalbumin model. Conclusion These results show the importance of the immunoproteasome in Th2 cells and airway inflammation. Our data provides first insight into the potential of using immunoproteasome inhibition to target the aberrant Th2 response, e.g. in allergic airway inflammation.
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Affiliation(s)
- Franziska Oliveri
- Division of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Michael Basler
- Division of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany
- Biotechnology Institute Thurgau at the University of Konstanz, Kreuzlingen, Switzerland
| | | | | | - Marcus Groettrup
- Division of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany
- Biotechnology Institute Thurgau at the University of Konstanz, Kreuzlingen, Switzerland
- *Correspondence: Marcus Groettrup,
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15
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Blanquart E, Mandonnet A, Mars M, Cenac C, Anesi N, Mercier P, Audouard C, Roga S, Serrano de Almeida G, Bevan CL, Girard JP, Pelletier L, Laffont S, Guéry JC. Targeting androgen signaling in ILC2s protects from IL-33-driven lung inflammation, independently of KLRG1. J Allergy Clin Immunol 2022; 149:237-251.e12. [PMID: 33964300 DOI: 10.1016/j.jaci.2021.04.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 03/12/2021] [Accepted: 04/08/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Allergic asthma is more severe and frequent in women than in men. In male mice, androgens negatively control group 2 innate lymphoid cell (ILC2) development and function by yet unknown mechanisms. OBJECTIVES We sought to investigate the impact of androgen on ILC2 homeostasis and IL-33-mediated inflammation in female lungs. We evaluated the role of androgen receptor (AR) signaling and the contribution of the putative inhibitory receptor killer cell lectin-like receptor G1 (KLRG1). METHODS Subcutaneous pellets mimicking physiological levels of androgen were used to treat female mice together with mice expressing a reporter enzyme under the control of androgen response elements and mixed bone marrow chimeras to assess the cell-intrinsic role of AR activation within ILC2s. We generated KLRG1-deficient mice. RESULTS We established that lung ILC2s express a functionally active AR that can be in vivo targeted with exogenous androgens to negatively control ILC2 homeostasis, proliferation, and function. Androgen signaling upregulated KLRG1 on ILC2s, which inhibited their proliferation on E-cadherin interaction. Despite evidence that KLRG1 impaired the competitive fitness of lung ILC2s during inflammation, KLRG1 deficiency neither alters in vivo ILC2 numbers and functions, nor did it lead to hyperactive ILC2s in either sexes. CONCLUSIONS AR agonists can be used in vivo to inhibit ILC2 homeostatic numbers and ILC2-dependent lung inflammation through cell-intrinsic AR activation. Although androgen signals in ILC2s to upregulate KLRG1, we demonstrate that KLRG1 is dispensable for androgen-mediated inhibition of pulmonary ILC2s.
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Affiliation(s)
- Eve Blanquart
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Audrey Mandonnet
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Marion Mars
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Claire Cenac
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Nina Anesi
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Pascale Mercier
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Christophe Audouard
- Centre de Biologie du Développement, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Stephane Roga
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Charlotte L Bevan
- Department of Surgery & Cancer, Imperial College, London, United Kingdom
| | - Jean-Philippe Girard
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Lucette Pelletier
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Sophie Laffont
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France.
| | - Jean-Charles Guéry
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), Université de Toulouse, CNRS, UPS, Toulouse, France.
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16
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Dietary Fibers: Effects, Underlying Mechanisms and Possible Role in Allergic Asthma Management. Nutrients 2021; 13:nu13114153. [PMID: 34836408 PMCID: PMC8621630 DOI: 10.3390/nu13114153] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/13/2022] Open
Abstract
The prevalence of asthma is increasing, but the cause remains under debate. Research currently focuses on environmental and dietary factors that may impact the gut-lung axis. Dietary fibers are considered to play a crucial role in supporting diversity and activity of the microbiome, as well as immune homeostasis in the gut and lung. This review discusses the current state of knowledge on how dietary fibers and their bacterial fermentation products may affect the pathophysiology of allergic asthma. Moreover, the impact of dietary fibers on early type 2 asthma management, as shown in both pre-clinical and clinical studies, is described. Short-chain fatty acids, fiber metabolites, modulate host immunity and might reduce the risk of allergic asthma development. Underlying mechanisms include G protein-coupled receptor activation and histone deacetylase inhibition. These results are supported by studies in mice, children and adults with allergic asthma. Fibers might also exert direct effects on the immune system via yet to be elucidated mechanisms. However, the effects of specific types of fiber, dosages, duration of treatment, and combination with probiotics, need to be explored. There is an urgent need to further valorize the potential of specific dietary fibers in prevention and treatment of allergic asthma by conducting more large-scale dietary intervention trials.
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17
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Follistatin-Like 1 Induces the Activation of Type 2 Innate Lymphoid Cells to Promote Airway Inflammation in Asthma. Inflammation 2021; 45:904-918. [PMID: 34757553 DOI: 10.1007/s10753-021-01594-w] [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: 11/27/2020] [Accepted: 10/28/2021] [Indexed: 10/19/2022]
Abstract
Asthma is a chronic disease closely related to airway inflammation. It has been proven that type 2 innate lymphoid cells (ILC2s) play an essential role in airway inflammation in asthma. Furthermore, there is growing evidence that Follistatin-like 1 (FSTL1) can participate in various inflammatory reactions mediated by the JAK/STAT signaling pathway, among others. Therefore, we put forward a new hypothesis: FSTL1 promotes asthmatic airway inflammation by activating ILC2. This study generated an ovalbumin-sensitized asthma model in C57BL/6 and Fstl1+/- mice. The results showed that the absolute number and the proportion of ILC2 in the ovalbumin-challenged Fstl1+/- group were lower than in the ovalbumin-challenged wild-type group. We also measured the levels of Th2-type cytokines in the serum and bronchoalveolar lavage fluid (BALF) of mice and found that the corresponding cytokines in the Fstl1+/- were lower than in the wild-type groups. Finally, we tested whether MEK-JAK-STAT-GATA3 is the specific pathway for FSTL1 to activate ILC2, and further tested our working hypothesis by adding various inhibitors of proteins from this pathway. Overall, these findings reveal that FSTL1 can activate ILC2 through MEK-JAK-STAT-GATA3 to promote airway inflammation and participate in the pathogenesis of asthma.
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18
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Orimo K, Tamari M, Saito H, Matsumoto K, Nakae S, Morita H. Characteristics of tissue-resident ILCs and their potential as therapeutic targets in mucosal and skin inflammatory diseases. Allergy 2021; 76:3332-3348. [PMID: 33866593 DOI: 10.1111/all.14863] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/30/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022]
Abstract
Discovery of innate lymphoid cells (ILCs), which are non-T and non-B lymphocytes that have no antigen-specific receptors, changed the classical concept of the mechanism of allergy, which had been explained mainly as antigen-specific acquired immunity based on IgE and Th2 cells. The discovery led to dramatic improvement in our understanding of the mechanism of non-IgE-mediated allergic inflammation. Numerous studies conducted in the past decade have elucidated the characteristics of each ILC subset in various organs and tissues and their ontogeny. We now know that each ILC subset exhibits heterogeneity. Moreover, the functions and activating/suppressing factors of each ILC subset were found to differ among both organs and types of tissue. Therefore, in this review, we summarize our current knowledge of ILCs by focusing on the organ/tissue-specific features of each subset to understand their roles in various organs. We also discuss ILCs' involvement in human inflammatory diseases in various organs and potential therapeutic/preventive strategies that target ILCs.
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Affiliation(s)
- Keisuke Orimo
- Department of Allergy and Clinical Immunology National Research Institute for Child Health and Development Tokyo Japan
| | - Masato Tamari
- Department of Allergy and Clinical Immunology National Research Institute for Child Health and Development Tokyo Japan
| | - Hirohisa Saito
- Department of Allergy and Clinical Immunology National Research Institute for Child Health and Development Tokyo Japan
| | - Kenji Matsumoto
- Department of Allergy and Clinical Immunology National Research Institute for Child Health and Development Tokyo Japan
| | - Susumu Nakae
- Graduate School of Integrated Sciences for Life Hiroshima University Hiroshima Japan
- Precursory Research for Embryonic Science and Technology Japan Science and Technology Agency Saitama Japan
| | - Hideaki Morita
- Department of Allergy and Clinical Immunology National Research Institute for Child Health and Development Tokyo Japan
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19
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The Interleukin-33-Group 2 Innate Lymphoid Cell Axis Represents a Potential Adjuvant Target To Increase the Cross-Protective Efficacy of Influenza Vaccine. J Virol 2021; 95:e0059821. [PMID: 34468174 DOI: 10.1128/jvi.00598-21] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Interleukin-33 (IL-33) is a multifunctional cytokine that mediates type 2-dominated immune responses. In contrast, the role of IL-33 during viral vaccination, which often aims to induce type 1 immunity, has not been fully investigated. Here, we examined the effects of IL-33 on influenza vaccine responses. We found that intranasal coadministration of IL-33 with an inactivated influenza virus vaccine increases vaccine efficacy against influenza virus infection, not only with the homologous strain but also with heterologous strains, including the 2009 H1N1 influenza virus pandemic strain. Cross-protection was dependent on group 2 innate lymphoid cells (ILC2s), as the beneficial effect of IL-33 on vaccine efficacy was abrogated in ILC2-deficient C57BL/6 Il7rCre/+ Rorafl/fl mice. Furthermore, mechanistic studies revealed that IL-33-activated ILC2s potentiate vaccine efficacy by enhancing mucosal humoral immunity, particularly IgA responses, potentially in a Th2 cytokine-dependent manner. Our results demonstrate that IL-33-mediated activation of ILC2s is a critical early event that is important for the induction of mucosal humoral immunity, which in turn is responsible for cross-strain protection against influenza. Thus, we reveal a previously unrecognized role for the IL-33-ILC2 axis in establishing broadly protective and long-lasting humoral mucosal immunity against influenza, knowledge that may help in the development of a universal influenza vaccine. IMPORTANCE Current influenza vaccines, although capable of protecting against predicted viruses/strains included in the vaccine, are inept at providing cross-protection against emerging/novel strains. Thus, we are in critical need of a universal vaccine that can protect against a wide range of influenza viruses. Our novel findings show that a mucosal vaccination strategy involving the activation of lung ILC2s is highly effective in eliciting cross-protective humoral immunity in the lungs. This suggests that the biology of lung ILC2s can be exploited to increase the cross-reactivity of commercially available influenza subunit vaccines.
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20
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Weiden MD, Singh A, Goldfarb DG, Putman B, Zeig‐Owens R, Schwartz T, Cohen HW, Prezant DJ. Serum Th-2 cytokines and FEV 1 decline in WTC-exposed firefighters: A 19-year longitudinal study. Am J Ind Med 2021; 64:845-852. [PMID: 34288008 PMCID: PMC9290799 DOI: 10.1002/ajim.23276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 01/07/2023]
Abstract
Background Accelerated‐FEV1‐decline, defined as rate of decline in FEV1 > 64 ml/year, is a risk factor for asthma and chronic obstructive pulmonary disease in World Trade Center (WTC)‐exposed firefighters. Accelerated‐FEV1‐decline in this cohort is associated with elevated blood eosinophil concentrations, a mediator of Th‐2 response. We hypothesized that an association exists between Th‐2 biomarkers and FEV1 decline rate in those with accelerated‐FEV1‐decline. Methods Serum was drawn from Fire Department of the City of New York (FDNY) firefighters 1–6 months (early) (N = 816) and 12–13 years (late) (N = 983) after 9/11/2001. Th‐2 biomarkers IL‐4, IL‐13, and IL‐5 were assayed by multiplex Luminex. Individual FEV1 decline rates were calculated using spirometric measurements taken: (1) between 9/11/2001 and 9/10/2020 for the early biomarker group and (2) between late measurement date and 9/10/2020 for the late biomarker group. Associations of early and late Th‐2 biomarkers with subsequent FEV1 decline rates were analyzed using multivariable linear regression controlling for demographics, smoking status, and other potential confounders. Results In WTC‐exposed firefighters with accelerated‐FEV1‐decline, IL‐4, IL‐13, and IL‐5 measured 1–6 months post‐9/11/2001 were associated with greater FEV1 decline ml/year between 9/11/2001 and 9/10/2020 (−2.9 ± 1.4 ml/year per IL‐4 doubling; −8.4 ± 1.2 ml/year per IL‐13 doubling; −7.9 ± 1.3 ml/year per IL‐5 doubling). Among late measured Th‐2 biomarkers, only IL‐4 was associated with subsequent FEV1 decline rate (−4.0 ± 1.6 ml/year per IL‐4 doubling). Conclusions In WTC‐exposed firefighters with accelerated‐FEV1‐decline, elevated serum IL‐4 measured both 1–6 months and 12–13 years after 9/11 is associated with greater FEV1 decline/year. Drugs targeting the IL‐4 pathway may improve lung function in this high‐risk subgroup.
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Affiliation(s)
- Michael D. Weiden
- The Bureau of Health Services and the FDNY World Trade Center Health Program Brooklyn New York USA
- Fire Department of the City of New York Brooklyn New York USA
- Department of Medicine New York University School of Medicine New York New York USA
- Department of Environmental Medicine, Pulmonary, Critical Care and Sleep Medicine Division New York University School of Medicine New York New York USA
| | - Ankura Singh
- The Bureau of Health Services and the FDNY World Trade Center Health Program Brooklyn New York USA
- Fire Department of the City of New York Brooklyn New York USA
- Department of Medicine, Pulmonary Medicine Division Montefiore Medical Center and Albert Einstein College of Medicine Bronx New York USA
| | - David G. Goldfarb
- The Bureau of Health Services and the FDNY World Trade Center Health Program Brooklyn New York USA
- Fire Department of the City of New York Brooklyn New York USA
- Department of Medicine, Pulmonary Medicine Division Montefiore Medical Center and Albert Einstein College of Medicine Bronx New York USA
| | - Barbara Putman
- Department of Medicine New York University School of Medicine New York New York USA
- Department of Environmental Medicine, Pulmonary, Critical Care and Sleep Medicine Division New York University School of Medicine New York New York USA
- Department of Bioanalysis, Faculty of Pharmaceutical Sciences Ghent University Ghent Belgium
| | - Rachel Zeig‐Owens
- The Bureau of Health Services and the FDNY World Trade Center Health Program Brooklyn New York USA
- Fire Department of the City of New York Brooklyn New York USA
- Department of Medicine, Pulmonary Medicine Division Montefiore Medical Center and Albert Einstein College of Medicine Bronx New York USA
- Department of Epidemiology and Population Health, Division of Epidemiology Albert Einstein College of Medicine Bronx New York USA
| | - Theresa Schwartz
- The Bureau of Health Services and the FDNY World Trade Center Health Program Brooklyn New York USA
- Fire Department of the City of New York Brooklyn New York USA
- Department of Medicine, Pulmonary Medicine Division Montefiore Medical Center and Albert Einstein College of Medicine Bronx New York USA
| | - Hillel W. Cohen
- Department of Epidemiology and Population Health, Division of Epidemiology Albert Einstein College of Medicine Bronx New York USA
| | - David J. Prezant
- The Bureau of Health Services and the FDNY World Trade Center Health Program Brooklyn New York USA
- Fire Department of the City of New York Brooklyn New York USA
- Department of Medicine, Pulmonary Medicine Division Montefiore Medical Center and Albert Einstein College of Medicine Bronx New York USA
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21
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Mitamura Y, Ogulur I, Pat Y, Rinaldi AO, Ardicli O, Cevhertas L, Brüggen MC, Traidl-Hoffmann C, Akdis M, Akdis CA. Dysregulation of the epithelial barrier by environmental and other exogenous factors. Contact Dermatitis 2021; 85:615-626. [PMID: 34420214 PMCID: PMC9293165 DOI: 10.1111/cod.13959] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/11/2021] [Accepted: 08/18/2021] [Indexed: 12/26/2022]
Abstract
The “epithelial barrier hypothesis” proposes that the exposure to various epithelial barrier–damaging agents linked to industrialization and urbanization underlies the increase in allergic diseases. The epithelial barrier constitutes the first line of physical, chemical, and immunological defense against environmental factors. Recent reports have shown that industrial products disrupt the epithelial barriers. Innate and adaptive immune responses play an important role in epithelial barrier damage. In addition, recent studies suggest that epithelial barrier dysfunction plays an essential role in the pathogenesis of the atopic march by allergen sensitization through the transcutaneous route. It is evident that external factors interact with the immune system, triggering a cascade of complex reactions that damage the epithelial barrier. Epigenetic and microbiome changes modulate the integrity of the epithelial barrier. Robust and simple measurements of the skin barrier dysfunction at the point‐of‐care are of significant value as a biomarker, as recently reported using electrical impedance spectroscopy to directly measure barrier defects. Understanding epithelial barrier dysfunction and its mechanism is key to developing novel strategies for the prevention and treatment of allergic diseases. The aim of this review is to summarize recent studies on the pathophysiological mechanisms triggered by environmental factors that contribute to the dysregulation of epithelial barrier function.
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Affiliation(s)
- Yasutaka Mitamura
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos.,Division of Pediatric Allergy and Immunology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos.,Department of Medical Microbiology, Faculty of Medicine, Aydin Menderes University, Aydin, Turkey
| | - Arturo O Rinaldi
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos
| | - Ozge Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos.,Department of Microbiology, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Turkey
| | - Lacin Cevhertas
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos.,Department of Medical Immunology, Institute of Health Sciences, Bursa Uludag University, Bursa, Turkey
| | - Marie-Charlotte Brüggen
- Christine Kühne-Center for Allergy Research and Education, Davos.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Claudia Traidl-Hoffmann
- Christine Kühne-Center for Allergy Research and Education, Davos.,Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos.,Christine Kühne-Center for Allergy Research and Education, Davos
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22
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Komlósi ZI, van de Veen W, Kovács N, Szűcs G, Sokolowska M, O'Mahony L, Akdis M, Akdis CA. Cellular and molecular mechanisms of allergic asthma. Mol Aspects Med 2021; 85:100995. [PMID: 34364680 DOI: 10.1016/j.mam.2021.100995] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/21/2022]
Abstract
Asthma is a chronic disease of the airways, which affects more than 350 million people worldwide. It is the most common chronic disease in children, affecting at least 30 million children and young adults in Europe. Asthma is a complex, partially heritable disease with a marked heterogeneity. Its development is influenced both by genetic and environmental factors. The most common, as well as the most well characterized subtype of asthma is allergic eosinophilic asthma, which is characterized by a type 2 airway inflammation. The prevalence of asthma has substantially increased in industrialized countries during the last 60 years. The mechanisms underpinning this phenomenon are incompletely understood, however increased exposure to various environmental pollutants probably plays a role. Disease inception is thought to be enabled by a disadvantageous shift in the balance between protective and harmful lifestyle and environmental factors, including exposure to protective commensal microbes versus infection with pathogens, collectively leading to airway epithelial cell damage and disrupted barrier integrity. Epithelial cell-derived cytokines are one of the main drivers of the type 2 immune response against innocuous allergens, ultimately leading to infiltration of lung tissue with type 2 T helper (TH2) cells, type 2 innate lymphoid cells (ILC2s), M2 macrophages and eosinophils. This review outlines the mechanisms responsible for the orchestration of type 2 inflammation and summarizes the novel findings, including but not limited to dysregulated epithelial barrier integrity, alarmin release and innate lymphoid cell stimulation.
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Affiliation(s)
- Zsolt I Komlósi
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad Sqr. 4, 1089, Budapest, Hungary.
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Nóra Kovács
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad Sqr. 4, 1089, Budapest, Hungary; Lung Health Hospital, Munkácsy Mihály Str. 70, 2045, Törökbálint, Hungary
| | - Gergő Szűcs
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad Sqr. 4, 1089, Budapest, Hungary; Department of Pulmonology, Semmelweis University, Tömő Str. 25-29, 1083, Budapest, Hungary
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Liam O'Mahony
- Department of Medicine and School of Microbiology, APC Microbiome Ireland, University College Cork, Ireland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
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23
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Zaini A, Fulford TS, Grumont RJ, Runting J, Rodrigues G, Ng J, Gerondakis S, Zaph C, Scheer S. c-Rel Is Required for IL-33-Dependent Activation of ILC2s. Front Immunol 2021; 12:667922. [PMID: 34194431 PMCID: PMC8236704 DOI: 10.3389/fimmu.2021.667922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/19/2021] [Indexed: 11/22/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are emerging as important cellular regulators of homeostatic and disease-associated immune processes. The cytokine interleukin-33 (IL-33) promotes ILC2-dependent inflammation and immunity, with IL-33 having been shown to activate NF-κB in a wide variety of cell types. However, it is currently unclear which NF-κB members play an important role in IL-33-dependent ILC2 biology. Here, we identify the NF-κB family member c-Rel as a critical component of the IL-33-dependent activation of ILC2s. Although c-Rel is dispensable for ILC2 development, it is critical for ILC2 function in the lung, with c-Rel-deficient (c-Rel-/- ) mice present a significantly reduced response to papain- and IL-33-induced lung inflammation. We also show that the absence of c-Rel reduces the IL-33-dependent expansion of ILC2 precursors and lower levels of IL-5 and IL-13 cytokine production by mature ILC2s in the lung. Together, these results identify the IL-33-c-Rel axis as a central control point of ILC2 activation and function.
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Affiliation(s)
- Aidil Zaini
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Thomas S. Fulford
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Raelene J. Grumont
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Jessica Runting
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Grace Rodrigues
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Judy Ng
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Steve Gerondakis
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Colby Zaph
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Sebastian Scheer
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
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24
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Zheng H, Zhang Y, Pan J, Liu N, Qin Y, Qiu L, Liu M, Wang T. The Role of Type 2 Innate Lymphoid Cells in Allergic Diseases. Front Immunol 2021; 12:586078. [PMID: 34177881 PMCID: PMC8220221 DOI: 10.3389/fimmu.2021.586078] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 05/10/2021] [Indexed: 12/22/2022] Open
Abstract
Allergic diseases are significant diseases that affect many patients worldwide. In the past few decades, the incidence of allergic diseases has increased significantly due to environmental changes and social development, which has posed a substantial public health burden and even led to premature death. The understanding of the mechanism underlying allergic diseases has been substantially advanced, and the occurrence of allergic diseases and changes in the immune system state are known to be correlated. With the identification and in-depth understanding of innate lymphoid cells, researchers have gradually revealed that type 2 innate lymphoid cells (ILC2s) play important roles in many allergic diseases. However, our current studies of ILC2s are limited, and their status in allergic diseases remains unclear. This article provides an overview of the common phenotypes and activation pathways of ILC2s in different allergic diseases as well as potential research directions to improve the understanding of their roles in different allergic diseases and ultimately find new treatments for these diseases.
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Affiliation(s)
- Haocheng Zheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yi Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jiachuang Pan
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Nannan Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yu Qin
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Linghui Qiu
- Journal Press of Global Traditional Chinese Medicine, Beijing, China
| | - Min Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Tieshan Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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25
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Reyes-García J, Montaño LM, Carbajal-García A, Wang YX. Sex Hormones and Lung Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:259-321. [PMID: 34019274 DOI: 10.1007/978-3-030-68748-9_15] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is a characteristic marker in numerous lung disorders. Several immune cells, such as macrophages, dendritic cells, eosinophils, as well as T and B lymphocytes, synthetize and release cytokines involved in the inflammatory process. Gender differences in the incidence and severity of inflammatory lung ailments including asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), lung cancer (LC), and infectious related illnesses have been reported. Moreover, the effects of sex hormones on both androgens and estrogens, such as testosterone (TES) and 17β-estradiol (E2), driving characteristic inflammatory patterns in those lung inflammatory diseases have been investigated. In general, androgens seem to display anti-inflammatory actions, whereas estrogens produce pro-inflammatory effects. For instance, androgens regulate negatively inflammation in asthma by targeting type 2 innate lymphoid cells (ILC2s) and T-helper (Th)-2 cells to attenuate interleukin (IL)-17A-mediated responses and leukotriene (LT) biosynthesis pathway. Estrogens may promote neutrophilic inflammation in subjects with asthma and COPD. Moreover, the activation of estrogen receptors might induce tumorigenesis. In this chapter, we summarize the most recent advances in the functional roles and associated signaling pathways of inflammatory cellular responses in asthma, COPD, PF, LC, and newly occurring COVID-19 disease. We also meticulously deliberate the influence of sex steroids on the development and progress of these common and severe lung diseases.
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Affiliation(s)
- Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico.,Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Yong-Xiao Wang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA.
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26
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Grosveld F, van Staalduinen J, Stadhouders R. Transcriptional Regulation by (Super)Enhancers: From Discovery to Mechanisms. Annu Rev Genomics Hum Genet 2021; 22:127-146. [PMID: 33951408 DOI: 10.1146/annurev-genom-122220-093818] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Accurate control of gene expression in the right cell at the right moment is of fundamental importance to animal development and homeostasis. At the heart of gene regulation lie the enhancers, a class of gene regulatory elements that ensures precise spatiotemporal activation of gene transcription. Mammalian genomes are littered with enhancers, which are frequently organized in cooperative clusters such as locus control regions and superenhancers. Here, we discuss our current knowledge of enhancer biology, including an overview of the discovery of the various enhancer subsets and the mechanistic models used to explain their gene regulatory function.
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Affiliation(s)
- Frank Grosveld
- Department of Cell Biology, Erasmus MC, 3000 CA Rotterdam, The Netherlands; ,
| | | | - Ralph Stadhouders
- Department of Cell Biology, Erasmus MC, 3000 CA Rotterdam, The Netherlands; , .,Department of Pulmonary Medicine, Erasmus MC, 3000 CA Rotterdam, The Netherlands
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27
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Sheikhpour M, Maleki M, Ebrahimi Vargoorani M, Amiri V. A review of epigenetic changes in asthma: methylation and acetylation. Clin Epigenetics 2021; 13:65. [PMID: 33781317 PMCID: PMC8008616 DOI: 10.1186/s13148-021-01049-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/04/2021] [Indexed: 12/30/2022] Open
Abstract
Several studies show that childhood and adulthood asthma and its symptoms can be modulated through epigenetic modifications. Epigenetic changes are inheritable modifications that can modify the gene expression without changing the DNA sequence. The most common epigenetic alternations consist of DNA methylation and histone modifications. How these changes lead to asthmatic phenotype or promote the asthma features, in particular by immune pathways regulation, is an understudied topic. Since external effects, like exposure to tobacco smoke, air pollution, and drugs, influence both asthma development and the epigenome, elucidating the role of epigenetic changes in asthma is of great importance. This review presents available evidence on the epigenetic process that drives asthma genes and pathways, with a particular focus on DNA methylation, histone methylation, and acetylation. We gathered and assessed studies conducted in this field over the past two decades. Our study examined asthma in different aspects and also shed light on the limitations and the important factors involved in the outcomes of the studies. To date, most of the studies in this area have been carried out on DNA methylation. Therefore, the need for diagnostic and therapeutic applications through this molecular process calls for more research on the histone modifications in this disease.
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Affiliation(s)
- Mojgan Sheikhpour
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
- Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| | - Mobina Maleki
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Ebrahimi Vargoorani
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
- Department of Microbiology, College of Basic Sciences, Tehran North Branch, Islamic Azad University, Tehran, Iran
| | - Vahid Amiri
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
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28
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Abstract
The innate immune response is a rapid response to pathogens or danger signals. It is precisely activated not only to efficiently eliminate pathogens but also to avoid excessive inflammation and tissue damage. cis-Regulatory element-associated chromatin architecture shaped by epigenetic factors, which we define as the epiregulome, endows innate immune cells with specialized phenotypes and unique functions by establishing cell-specific gene expression patterns, and it also contributes to resolution of the inflammatory response. In this review, we focus on two aspects: (a) how niche signals during lineage commitment or following infection and pathogenic stress program epiregulomes by regulating gene expression levels, enzymatic activities, or gene-specific targeting of chromatin modifiers and (b) how the programed epiregulomes in turn mediate regulation of gene-specific expression, which contributes to controlling the development of innate cells, or the response to infection and inflammation, in a timely manner. We also discuss the effects of innate immunometabolic rewiring on epiregulomes and speculate on several future challenges to be encountered during the exploration of the master regulators of epiregulomes in innate immunity and inflammation.
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Affiliation(s)
- Qian Zhang
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China; , .,National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Military Medical University, Shanghai 200433, China
| | - Xuetao Cao
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China; , .,National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Military Medical University, Shanghai 200433, China.,Laboratory of Immunity and Inflammation, College of Life Sciences, Nankai University, Tianjin 300071, China
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29
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Tindemans I, van Schoonhoven A, KleinJan A, de Bruijn MJ, Lukkes M, van Nimwegen M, van den Branden A, Bergen IM, Corneth OB, van IJcken WF, Stadhouders R, Hendriks RW. Notch signaling licenses allergic airway inflammation by promoting Th2 cell lymph node egress. J Clin Invest 2021; 130:3576-3591. [PMID: 32255764 DOI: 10.1172/jci128310] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 03/24/2020] [Indexed: 12/27/2022] Open
Abstract
Allergic asthma is mediated by Th2 responses to inhaled allergens. Although previous experiments indicated that Notch signaling activates expression of the key Th2 transcription factor Gata3, it remains controversial how Notch promotes allergic airway inflammation. Here we show that T cell-specific Notch deficiency in mice prevented house dust mite-driven eosinophilic airway inflammation and significantly reduced Th2 cytokine production, serum IgE levels, and airway hyperreactivity. However, transgenic Gata3 overexpression in Notch-deficient T cells only partially rescued this phenotype. We found that Notch signaling was not required for T cell proliferation or Th2 polarization. Instead, Notch-deficient in vitro-polarized Th2 cells showed reduced accumulation in the lungs upon in vivo transfer and allergen challenge, as Notch-deficient Th2 cells were retained in the lung-draining lymph nodes. Transcriptome analyses and sequential adoptive transfer experiments revealed that while Notch-deficient lymph node Th2 cells established competence for lung migration, they failed to upregulate sphingosine-1-phosphate receptor 1 (S1PR1) and its critical upstream transcriptional activator Krüppel-like factor 2 (KLF2). As this KLF2/S1PR1 axis represents the essential cell-intrinsic regulator of T cell lymph node egress, we conclude that the druggable Notch signaling pathway licenses the Th2 response in allergic airway inflammation via promoting lymph node egress.
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30
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van der Ploeg EK, Golebski K, van Nimwegen M, Fergusson JR, Heesters BA, Martinez-Gonzalez I, Kradolfer CMA, van Tol S, Scicluna BP, de Bruijn MJW, de Boer GM, Tramper-Stranders GA, Braunstahl GJ, van IJcken WFJ, Nagtegaal AP, van Drunen CM, Fokkens WJ, Huylebroeck D, Spits H, Hendriks RW, Stadhouders R, Bal SM. Steroid-resistant human inflammatory ILC2s are marked by CD45RO and elevated in type 2 respiratory diseases. Sci Immunol 2021; 6:6/55/eabd3489. [PMID: 33514640 DOI: 10.1126/sciimmunol.abd3489] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 12/23/2020] [Indexed: 12/13/2022]
Abstract
Group 2 innate lymphoid cells (ILC2s) orchestrate protective type 2 immunity and have been implicated in various immune disorders. In the mouse, circulatory inflammatory ILC2s (iILC2s) were identified as a major source of type 2 cytokines. The human equivalent of the iILC2 subset remains unknown. Here, we identify a human inflammatory ILC2 population that resides in inflamed mucosal tissue and is specifically marked by surface CD45RO expression. CD45RO+ ILC2s are derived from resting CD45RA+ ILC2s upon activation by epithelial alarmins such as IL-33 and TSLP, which is tightly linked to STAT5 activation and up-regulation of the IRF4/BATF transcription factors. Transcriptome analysis reveals marked similarities between human CD45RO+ ILC2s and mouse iILC2s. Frequencies of CD45RO+ inflammatory ILC2 are increased in inflamed mucosal tissue and in the circulation of patients with chronic rhinosinusitis or asthma, correlating with disease severity and resistance to corticosteroid therapy. CD45RA-to-CD45RO ILC2 conversion is suppressed by corticosteroids via induction of differentiation toward an immunomodulatory ILC2 phenotype characterized by low type 2 cytokine and high amphiregulin expression. Once converted, however, CD45RO+ ILC2s are resistant to corticosteroids, which is associated with metabolic reprogramming resulting in the activation of detoxification pathways. Our combined data identify CD45RO+ inflammatory ILC2s as a human analog of mouse iILC2s linked to severe type 2 inflammatory disease and therapy resistance.
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Affiliation(s)
- Esmee K van der Ploeg
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands.,Department of Cell Biology, Erasmus MC, Rotterdam, Netherlands
| | - Korneliusz Golebski
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | | | - Joannah R Fergusson
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Balthasar A Heesters
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Itziar Martinez-Gonzalez
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Chantal M A Kradolfer
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Sophie van Tol
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Brendon P Scicluna
- Center of Experimental and Molecular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Department of Clinical Epidemiology and Biostatistics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | | | - Geertje M de Boer
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands.,Department of Respiratory Medicine, Franciscus Gasthuis and Vlietland, Rotterdam, Netherlands
| | - Gerdien A Tramper-Stranders
- Department of Pediatric Medicine, Franciscus Gasthuis and Vlietland, Rotterdam, Netherlands.,Department of Neonatology, Sophia Children's Hospital, Erasmus MC, Rotterdam, Netherlands
| | - Gert-Jan Braunstahl
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands.,Department of Respiratory Medicine, Franciscus Gasthuis and Vlietland, Rotterdam, Netherlands
| | - Wilfred F J van IJcken
- Department of Cell Biology, Erasmus MC, Rotterdam, Netherlands.,Center for Biomics, Erasmus MC, Rotterdam, Netherlands
| | - A Paul Nagtegaal
- Department of Otorhinolaryngology and Head and Neck Surgery, Erasmus MC, Rotterdam, Netherlands
| | - Cornelis M van Drunen
- Department of Otorhinolaryngology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Wytske J Fokkens
- Department of Otorhinolaryngology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | | | - Hergen Spits
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands
| | - Ralph Stadhouders
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands. .,Department of Cell Biology, Erasmus MC, Rotterdam, Netherlands
| | - Suzanne M Bal
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands.,Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
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31
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Induction of IL-10-producing type 2 innate lymphoid cells by allergen immunotherapy is associated with clinical response. Immunity 2021; 54:291-307.e7. [PMID: 33450188 DOI: 10.1016/j.immuni.2020.12.013] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 11/04/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022]
Abstract
The role of innate immune cells in allergen immunotherapy that confers immune tolerance to the sensitizing allergen is unclear. Here, we report a role of interleukin-10-producing type 2 innate lymphoid cells (IL-10+ ILC2s) in modulating grass-pollen allergy. We demonstrate that KLRG1+ but not KLRG1- ILC2 produced IL-10 upon activation with IL-33 and retinoic acid. These cells attenuated Th responses and maintained epithelial cell integrity. IL-10+ KLRG1+ ILC2s were lower in patients with grass-pollen allergy when compared to healthy subjects. In a prospective, double-blind, placebo-controlled trial, we demonstrated that the competence of ILC2 to produce IL-10 was restored in patients who received grass-pollen sublingual immunotherapy. The underpinning mechanisms were associated with the modification of retinol metabolic pathway, cytokine-cytokine receptor interaction, and JAK-STAT signaling pathways in the ILCs. Altogether, our findings underscore the contribution of IL-10+ ILC2s in the disease-modifying effect by allergen immunotherapy.
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32
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Asano K, Ueki S, Tamari M, Imoto Y, Fujieda S, Taniguchi M. Adult-onset eosinophilic airway diseases. Allergy 2020; 75:3087-3099. [PMID: 33040364 DOI: 10.1111/all.14620] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 12/13/2022]
Abstract
Eosinophilic airway inflammation is one of the cardinal features of allergic airway diseases such as atopic asthma and allergic rhinitis. These childhood-onset conditions are mediated by allergen and allergen-specific IgE and often accompanied by other allergic diseases including food allergy and eczema. They can develop consecutively in the same patient, which is referred to as an allergic march. In contrast, some phenotypes of asthma, nonsteroidal anti-inflammatory drugs-exacerbated airway disease (N-ERD), chronic rhinosinusitis with nasal polyps (CRSwNP)/eosinophilic CRS and allergic bronchopulmonary aspergillosis/mycosis (ABPA/ABPM) are adult-onset airway diseases, which are characterized by prominent peripheral blood eosinophilia. Most of these conditions, except for ABPA/ABPM, are nonatopic, and the coexistence of multiple diseases, including an adult-onset eosinophilic systemic disease, eosinophilic granulomatosis with polyangiitis (EGPA), is common. In this review, we focus on eosinophil biology, genetics and clinical characteristics and the pathophysiology of adult-onset eosinophilic asthma, N-ERD, CRSwNP/eosinophilic CRS, ABPA/ABPM and EGPA, while exploring the common genetic, immunological and pathological conditions among these adult-onset eosinophilic diseases.
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Affiliation(s)
- Koichiro Asano
- Division of Pulmonary Medicine Department of Medicine Tokai University School of Medicine Kanagawa Japan
| | - Shigeharu Ueki
- Department of General Internal Medicine and Clinical Laboratory Medicine Akita University Graduate School of Medicine Akita Japan
| | - Mayumi Tamari
- Division of Molecular Genetics Research Center for Medical Science The Jikei University School of Medicine Tokyo Japan
| | - Yoshimasa Imoto
- Division of Otorhinolaryngology–Head & Neck Surgery Department of Sensory and Locomotor Medicine Faculty of Medical Science University of Fukui Fukui Japan
| | - Shigeharu Fujieda
- Division of Otorhinolaryngology–Head & Neck Surgery Department of Sensory and Locomotor Medicine Faculty of Medical Science University of Fukui Fukui Japan
| | - Masami Taniguchi
- Center for Allergy and Immunology Shonan Kamakura General Hospital Kanagawa Japan
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33
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Groth EE, Weber M, Bahmer T, Pedersen F, Kirsten A, Börnigen D, Rabe KF, Watz H, Ammerpohl O, Goldmann T. Exploration of the sputum methylome and omics deconvolution by quadratic programming in molecular profiling of asthma and COPD: the road to sputum omics 2.0. Respir Res 2020; 21:274. [PMID: 33076907 PMCID: PMC7574293 DOI: 10.1186/s12931-020-01544-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/11/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND To date, most studies involving high-throughput analyses of sputum in asthma and COPD have focused on identifying transcriptomic signatures of disease. No whole-genome methylation analysis of sputum cells has been performed yet. In this context, the highly variable cellular composition of sputum has potential to confound the molecular analyses. METHODS Whole-genome transcription (Agilent Human 4 × 44 k array) and methylation (Illumina 450 k BeadChip) analyses were performed on sputum samples of 9 asthmatics, 10 healthy and 10 COPD subjects. RNA integrity was checked by capillary electrophoresis and used to correct in silico for bias conferred by RNA degradation during biobank sample storage. Estimates of cell type-specific molecular profiles were derived via regression by quadratic programming based on sputum differential cell counts. All analyses were conducted using the open-source R/Bioconductor software framework. RESULTS A linear regression step was found to perform well in removing RNA degradation-related bias among the main principal components of the gene expression data, increasing the number of genes detectable as differentially expressed in asthma and COPD sputa (compared to controls). We observed a strong influence of the cellular composition on the results of mixed-cell sputum analyses. Exemplarily, upregulated genes derived from mixed-cell data in asthma were dominated by genes predominantly expressed in eosinophils after deconvolution. The deconvolution, however, allowed to perform differential expression and methylation analyses on the level of individual cell types and, though we only analyzed a limited number of biological replicates, was found to provide good estimates compared to previously published data about gene expression in lung eosinophils in asthma. Analysis of the sputum methylome indicated presence of differential methylation in genomic regions of interest, e.g. mapping to a number of human leukocyte antigen (HLA) genes related to both major histocompatibility complex (MHC) class I and II molecules in asthma and COPD macrophages. Furthermore, we found the SMAD3 (SMAD family member 3) gene, among others, to lie within differentially methylated regions which has been previously reported in the context of asthma. CONCLUSIONS In this methodology-oriented study, we show that methylation profiling can be easily integrated into sputum analysis workflows and exhibits a strong potential to contribute to the profiling and understanding of pulmonary inflammation. Wherever RNA degradation is of concern, in silico correction can be effective in improving both sensitivity and specificity of downstream analyses. We suggest that deconvolution methods should be integrated in sputum omics analysis workflows whenever possible in order to facilitate the unbiased discovery and interpretation of molecular patterns of inflammation.
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Affiliation(s)
- Espen E Groth
- LungenClinic Grosshansdorf, Großhansdorf, Germany. .,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany. .,Department of Internal Medicine I, Pneumology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany. .,Department of Oncology, Hematology and BMT with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Melanie Weber
- Program in Applied and Computational Mathematics, Princeton University, Princeton, NJ, USA
| | - Thomas Bahmer
- LungenClinic Grosshansdorf, Großhansdorf, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany.,Department of Internal Medicine I, Pneumology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Frauke Pedersen
- LungenClinic Grosshansdorf, Großhansdorf, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany.,Pulmonary Research Institute at LungenClinic Grosshansdorf, Großhansdorf, Germany
| | - Anne Kirsten
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany.,Pulmonary Research Institute at LungenClinic Grosshansdorf, Großhansdorf, Germany
| | - Daniela Börnigen
- Bioinformatics Core Unit, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Klaus F Rabe
- LungenClinic Grosshansdorf, Großhansdorf, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany
| | - Henrik Watz
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany.,Pulmonary Research Institute at LungenClinic Grosshansdorf, Großhansdorf, Germany
| | - Ole Ammerpohl
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany.,Institute of Human Genetics, University Medical Center Ulm, Ulm, Germany
| | - Torsten Goldmann
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany.,Research Center Borstel, Pathology, Borstel, Germany
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35
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Entwistle LJ, Gregory LG, Oliver RA, Branchett WJ, Puttur F, Lloyd CM. Pulmonary Group 2 Innate Lymphoid Cell Phenotype Is Context Specific: Determining the Effect of Strain, Location, and Stimuli. Front Immunol 2020; 10:3114. [PMID: 32038635 PMCID: PMC6987460 DOI: 10.3389/fimmu.2019.03114] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/20/2019] [Indexed: 12/19/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are enriched at mucosal sites, including the lung, and play a central role in type 2 immunity and maintaining tissue homeostasis. As a result, since their discovery in 2010, research into ILC2s has increased markedly. Numerous strategies have been used to define ILC2s by flow cytometry, often utilizing different combinations of surface markers despite their expression being variable and context-dependent. In this study, we sought to generate a comprehensive characterization of pulmonary ILC2s, identifying stable and context specific markers from different pulmonary compartments following different airway exposures in different strains of mice. Our analysis revealed that pulmonary ILC2 surface marker phenotype is heterogeneous and is influenced by mouse strain, pulmonary location, in vivo treatment/exposure and ex vivo stimulation. Therefore, we propose that a lineage negative cell expressing CD45 and Gata3 defines an ILC2, and subsequent surface marker expression should be used to describe their phenotype in context-specific scenarios.
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Affiliation(s)
- Lewis J Entwistle
- Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Lisa G Gregory
- Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Robert A Oliver
- Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - William J Branchett
- Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Franz Puttur
- Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Clare M Lloyd
- Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom
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36
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Bacharier LB, Mori A, Kita H. Advances in asthma, asthma-COPD overlap, and related biologics in 2018. J Allergy Clin Immunol 2019; 144:906-919. [PMID: 31476323 DOI: 10.1016/j.jaci.2019.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/23/2019] [Accepted: 08/26/2019] [Indexed: 01/14/2023]
Abstract
Over the past year, numerous important advances in our understanding of multiple aspects of asthma, ranging from disease pathogenesis to epidemiology to therapeutics, have been reported. This review is a compilation of highlights from articles published largely in the Journal of Allergy and Clinical Immunology and supplemented by articles published elsewhere that have substantially advanced the fields of asthma, chronic obstructive pulmonary disease (COPD), and asthma-COPD overlap and biologic therapies for these disorders. The intention of this article is not to provide a comprehensive review but rather to focus on several areas that have developed quickly and/or received extensive attention from our readers.
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Affiliation(s)
- Leonard B Bacharier
- Division of Pediatric Allergy, Immunology and Pulmonary Medicine, Department of Pediatrics, Washington University School of Medicine and St Louis Children's Hospital, St Louis, Mo.
| | - Akio Mori
- Department of Advanced Medicine, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Hirohito Kita
- Division of Allergic Diseases, Department of Medicine and Department of Immunology, Mayo Clinic, Rochester, Minn; Division of Allergic Diseases, Department of Medicine and Department of Immunology, Mayo Clinic, Scottsdale
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37
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Borger JG, Lau M, Hibbs ML. The Influence of Innate Lymphoid Cells and Unconventional T Cells in Chronic Inflammatory Lung Disease. Front Immunol 2019; 10:1597. [PMID: 31354734 PMCID: PMC6637857 DOI: 10.3389/fimmu.2019.01597] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/26/2019] [Indexed: 12/11/2022] Open
Abstract
The lungs are continuously subjected to environmental insults making them susceptible to infection and injury. They are protected by the respiratory epithelium, which not only serves as a physical barrier but also a reactive one that can release cytokines, chemokines, and other defense proteins in response to danger signals, and can undergo conversion to protective mucus-producing goblet cells. The lungs are also guarded by a complex network of highly specialized immune cells and their mediators to support tissue homeostasis and resolve integrity deviation. This review focuses on specialized innate-like lymphocytes present in the lung that act as key sensors of lung insults and direct the pulmonary immune response. Included amongst these tissue-resident lymphocytes are innate lymphoid cells (ILCs), which are classified into five distinct subsets (natural killer, ILC1, ILC2, ILC3, lymphoid tissue-inducer cells), and unconventional T cells including natural killer T (NKT) cells, mucosal-associated invariant T (MAIT) cells, and γδ-T cells. While ILCs and unconventional T cells together comprise only a small proportion of the total immune cells in the lung, they have been found to promote lung homeostasis and are emerging as contributors to a variety of chronic lung diseases including pulmonary fibrosis, allergic airway inflammation, and chronic obstructive pulmonary disease (COPD). A particularly intriguing trait of ILCs that has recently emerged is their plasticity and ability to alter their gene expression profiles and adapt their function in response to environmental cues. The malleable nature of these cells may aid in rapid responses to pathogen but may also have downstream pathological consequences. The role of ILC2s in Th2 allergic airway responses is becoming apparent but the contribution of other ILCs and unconventional T cells during chronic lung inflammation is poorly described. This review presents an overview of our current understanding of the involvement of ILCs and unconventional T cells in chronic pulmonary diseases.
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Affiliation(s)
- Jessica G Borger
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Maverick Lau
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Department of Pharmacology and Therapeutics, Lung Health Research Centre, University of Melbourne, Melbourne, VIC, Australia
| | - Margaret L Hibbs
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
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38
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Krabbendam L, Bal SM, Spits H, Golebski K. New insights into the function, development, and plasticity of type 2 innate lymphoid cells. Immunol Rev 2019; 286:74-85. [PMID: 30294969 DOI: 10.1111/imr.12708] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 08/16/2018] [Indexed: 12/27/2022]
Abstract
Group 2 innate lymphoid cells (ILC2s) are the most well defined group of ILCs. ILC2 development is controlled by the GATA-3 transcription factor and these cells produce archetypal type 2 cytokines, such as IL-5 and IL-13. These cytokines mediate parasite expulsion and tissue repair, but also contribute to type 2 inflammatory diseases, including allergy, asthma and chronic rhinosinusitis with nasal polyps. In response to tightly regulated local environmental cues ILCs can generate characteristics of other subtypes, a process known as plasticity. Recent advances in the ILC2 field has led to the discovery that ILC2s can promptly shift to functional IFN-γ-producing ILC1s or IL-17-producing ILC3s, depending on the cytokines and chemokines produced by antigen presenting cells or epithelial cells. Due to yet unknown triggers, this complex network of signals may become dysregulated. In this review, we will discuss general ILC characteristic, ILC2 development, plasticity, memory function, and implications in disease.
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Affiliation(s)
- Lisette Krabbendam
- Department of Experimental Immunology, Amsterdam-UMC, Amsterdam, the Netherlands
| | - Suzanne M Bal
- Department of Experimental Immunology, Amsterdam-UMC, Amsterdam, the Netherlands
| | - Hergen Spits
- Department of Experimental Immunology, Amsterdam-UMC, Amsterdam, the Netherlands
| | - Korneliusz Golebski
- Department of Experimental Immunology, Amsterdam-UMC, Amsterdam, the Netherlands
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39
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Nagasawa M, Heesters BA, Kradolfer CMA, Krabbendam L, Martinez-Gonzalez I, de Bruijn MJW, Golebski K, Hendriks RW, Stadhouders R, Spits H, Bal SM. KLRG1 and NKp46 discriminate subpopulations of human CD117 +CRTH2 - ILCs biased toward ILC2 or ILC3. J Exp Med 2019; 216:1762-1776. [PMID: 31201208 PMCID: PMC6683990 DOI: 10.1084/jem.20190490] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/26/2019] [Accepted: 05/15/2019] [Indexed: 01/09/2023] Open
Abstract
Recently, human ILCs that express CD117 and CD127 but lack CRTH2 and NKp44 have been shown to contain precursors of ILC1, ILC2, and ILC3. However, these ILCs have not been extensively characterized. We performed an unbiased hierarchical stochastic neighbor embedding (HSNE) analysis of the phenotype of peripheral blood CD117+ ILCs, which revealed the presence of three major subsets: the first expressed NKp46, the second expressed both NKp46 and CD56, and the third expressed KLRG1, but not NKp46 or CD56. Analysis of their cytokine production profiles and transcriptome revealed that NKp46+ ILCs predominantly develop into ILC3s; some of them can differentiate into ILC1/NK-like cells, but they are unable to develop into ILC2s. In contrast, KLRG1+ ILCs predominantly differentiate into ILC2s. Single-cell cultures demonstrate that KLRG1+ ILCs can also differentiate into other ILC subsets depending on the signals they receive. Epigenetic profiling of KLRG1+ ILCs is consistent with the broad differentiation potential of these cells.
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Affiliation(s)
- Maho Nagasawa
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | - Balthasar A Heesters
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | - Chantal M A Kradolfer
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | - Lisette Krabbendam
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | - Itziar Martinez-Gonzalez
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | | | - Korneliusz Golebski
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Ralph Stadhouders
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands.,Department of Cell Biology, Erasmus MC, Rotterdam, The Netherlands
| | - Hergen Spits
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands .,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands
| | - Suzanne M Bal
- Department of Experimental Immunology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands .,Amsterdam Infection & Immunity Institute, Amsterdam, The Netherlands.,Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
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40
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Helfrich S, Mindt BC, Fritz JH, Duerr CU. Group 2 Innate Lymphoid Cells in Respiratory Allergic Inflammation. Front Immunol 2019; 10:930. [PMID: 31231357 PMCID: PMC6566538 DOI: 10.3389/fimmu.2019.00930] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/11/2019] [Indexed: 12/14/2022] Open
Abstract
Millions of people worldwide are suffering from allergic inflammatory airway disorders. These conditions are regarded as a consequence of multiple imbalanced immune events resulting in an inadequate response with the exact underlying mechanisms still being a subject of ongoing research. Several cell populations have been proposed to be involved but it is becoming increasingly evident that group 2 innate lymphoid cells (ILC2s) play a key role in the initiation and orchestration of respiratory allergic inflammation. ILC2s are important mediators of inflammation but also tissue remodeling by secreting large amounts of signature cytokines within a short time period. Thereby, ILC2s instruct innate but also adaptive immune responses. Here, we will discuss the recent literature on allergic inflammation of the respiratory tract with a focus on ILC2 biology. Furthermore, we will highlight different therapeutic strategies to treat pulmonary allergic inflammation and their potential influence on ILC2 function as well as discuss the perspective of using human ILC2s for diagnostic purposes.
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Affiliation(s)
- Sofia Helfrich
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Barbara C Mindt
- Department of Microbiology & Immunology, McGill University, Montréal, QC, Canada.,McGill University Research Centre on Complex Traits (MRCCT), McGill University, Montréal, QC, Canada.,FOCiS Centre of Excellence in Translational Immunology (CETI), McGill University, Montréal, QC, Canada
| | - Jörg H Fritz
- Department of Microbiology & Immunology, McGill University, Montréal, QC, Canada.,McGill University Research Centre on Complex Traits (MRCCT), McGill University, Montréal, QC, Canada.,FOCiS Centre of Excellence in Translational Immunology (CETI), McGill University, Montréal, QC, Canada.,Department of Physiology, McGill University, Montréal, QC, Canada
| | - Claudia U Duerr
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
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41
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Laffont S, Guéry JC. Deconstructing the sex bias in allergy and autoimmunity: From sex hormones and beyond. Adv Immunol 2019; 142:35-64. [PMID: 31296302 DOI: 10.1016/bs.ai.2019.04.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Men and women differ in their susceptibility to develop autoimmunity and allergy but also in their capacity to cope with infections. Mechanisms responsible for this sexual dimorphism are still poorly documented and probably multifactorial. This review discusses the recent development in our understanding of the cell-intrinsic actions of biological factors linked to sex, sex hormones and sex chromosome complement, on immune cells, which may account for the sex differences in the enhanced susceptibility of women to develop immunological disorders, such as allergic asthma or systemic lupus erythematosus (SLE). We choose to more specifically discuss the impact of sex hormones on the development and function of immune cell populations directly involved in type-2 immunity, and the role of the X-linked Toll like receptor 7 (TLR7) in anti-viral immunity and in SLE. We will also elaborate on the recent evidence demonstrating that TLR7 escapes from X chromosome inactivation in the immune cells of women, and how this may contribute to endow woman immune system with enhanced responsiveness to RNA-virus and susceptibility to SLE.
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Affiliation(s)
- Sophie Laffont
- Centre de Physiopathologie de Toulouse Purpan (CPTP), Université de Toulouse, INSERM, CNRS, UPS, Toulouse, France
| | - Jean-Charles Guéry
- Centre de Physiopathologie de Toulouse Purpan (CPTP), Université de Toulouse, INSERM, CNRS, UPS, Toulouse, France.
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42
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Pulmonary group 2 innate lymphoid cells: surprises and challenges. Mucosal Immunol 2019; 12:299-311. [PMID: 30664706 PMCID: PMC6436699 DOI: 10.1038/s41385-018-0130-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 02/04/2023]
Abstract
Group 2 innate lymphoid cells (ILC2s) are a recently described subset of innate lymphocytes with important immune and homeostatic functions at multiple tissue sites, especially the lung. These cells expand locally after birth and during postnatal lung maturation and are present in the lung and other peripheral organs. They are modified by a variety of processes and mediate inflammatory responses to respiratory pathogens, inhaled allergens and noxious particles. Here, we review the emerging roles of ILC2s in pulmonary homeostasis and discuss recent and surprising advances in our understanding of how hormones, age, neurotransmitters, environmental challenges, and infection influence ILC2s. We also review how these responses may underpin the development, progression and severity of pulmonary inflammation and chronic lung diseases and highlight some of the remaining challenges for ILC2 biology.
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43
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van der Ploeg EK, Carreras Mascaro A, Huylebroeck D, Hendriks RW, Stadhouders R. Group 2 Innate Lymphoid Cells in Human Respiratory Disorders. J Innate Immun 2019; 12:47-62. [PMID: 30726833 DOI: 10.1159/000496212] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 12/13/2018] [Indexed: 12/17/2022] Open
Abstract
Recent studies using animal models have generated profound insight into the functions of various subsets of innate lymphoid cells (ILCs). The group 2 ILC subset (ILC2) has been implicated in tissue homeostasis, defense responses against parasites, tissue repair, and immunopathology associated with type-2 immunity. In addition, progress has also been made in translating these findings from animal studies into a context of human immunity. Importantly, recent observations strongly support a role for ILC2s in several diseases of the human respiratory system. However, many aspects of human ILC2 biology are still unclear, including how these cells develop and which signals control their activity. As a result, the exact role played by ILCs in human health and disease remains poorly understood. Here, we summarize our current understanding of human ILC2 biology and focus on their potential involvement in various human respiratory disorders.
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Affiliation(s)
- Esmee K van der Ploeg
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Ana Carreras Mascaro
- Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Danny Huylebroeck
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Ralph Stadhouders
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, The Netherlands, .,Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands,
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44
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Airway innate lymphoid cells in the induction and regulation of allergy. Allergol Int 2019; 68:9-16. [PMID: 30473412 PMCID: PMC6614863 DOI: 10.1016/j.alit.2018.11.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/20/2018] [Accepted: 10/24/2018] [Indexed: 12/11/2022] Open
Abstract
The recent discovery of innate lymphoid cells has revolutionized our understanding of the pathogenesis of immune diseases including allergy and asthma. Innate lymphoid cells (ILCs) are a heterogeneous collection of lymphocytes that lack antigen-specificity (non-T, non-B cells) and potently produce characteristic cytokines of T cell subsets (Th1, Th2, Th17). ILCs are divided into group 1 (ILC1s), group 2 (ILC2s), or group 3 (ILC3s). Similar to Th2 cells, ILC2s produce IL-4, IL-5, and IL-13, among others, and are present in increased numbers in samples from patients with many allergic disorders including asthma and chronic rhinosinusitis (CRS). Animal models have identified that ILC2s contribute to eosinophilic tissue infiltration, airway hyperresponsiveness, mucus production, as well as coordinate adaptive immune responses. Finally, recent studies support regulation of ILC2s by neuro-immune mechanisms as well as demonstrate a significant degree of plasticity between ILC subsets that may impact the immune responses in asthma and allergic airway diseases. Here, we review the current literature on ILC2s in human asthma and allergic airway diseases, as well as highlight some recent mechanistic insights into ILC2 function from in vitro studies and in vivo animal models.
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45
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Wang M, Tan G, Eljaszewicz A, Meng Y, Wawrzyniak P, Acharya S, Altunbulakli C, Westermann P, Dreher A, Yan L, Wang C, Akdis M, Zhang L, Nadeau KC, Akdis CA. Laundry detergents and detergent residue after rinsing directly disrupt tight junction barrier integrity in human bronchial epithelial cells. J Allergy Clin Immunol 2018; 143:1892-1903. [PMID: 30500342 DOI: 10.1016/j.jaci.2018.11.016] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/31/2018] [Accepted: 11/09/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Defects in the epithelial barrier have recently been associated with asthma and other allergies. The influence of laundry detergents on human bronchial epithelial cells (HBECs) and their barrier function remain unknown. OBJECTIVE We investigated the effects of laundry detergents on cytotoxicity, barrier function, the transcriptome, and the epigenome in HBECs. METHODS Air-liquid interface cultures of primary HBECs from healthy control subjects, patients with asthma, and patients with chronic obstructive pulmonary disease were exposed to laundry detergents and detergent residue after rinsing. Cytotoxicity and epithelial barrier function were evaluated. RNA sequencing, Assay for Transposase Accessible Chromatin with high-throughput sequencing, and DNA methylation arrays were used for checking the transcriptome and epigenome. RESULTS Laundry detergents and rinse residue showed dose-dependent toxic effects on HBECs, with irregular cell shape and leakage of lactate dehydrogenase after 24 hours of exposure. A disrupted epithelial barrier function was found with decreased transepithelial electrical resistance, increased paracellular flux, and stratified tight junction (TJ) immunostaining in HBECs exposed to laundry detergent at 1:25,000 dilutions or rinse residue at further 1:10 dilutions. RNA sequencing analysis showed that lipid metabolism, apoptosis progress, and epithelially derived alarmin-related gene expression were upregulated, whereas cell adhesion-related gene expression was downregulated by laundry detergent at 1:50,000 dilutions after 24 hours of exposure without substantially affecting chromatin accessibility and DNA methylation. CONCLUSION Our data demonstrate that laundry detergents, even at a very high dilution, and rinse residue show significant cell-toxic and directly disruptive effects on the TJ barrier integrity of HBECs without affecting the epigenome and TJ gene expression.
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Affiliation(s)
- Ming Wang
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland; Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, and the Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Ge Tan
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland; Functional Genomics Center Zurich, ETH Zurich/University of Zurich, Zurich, Switzerland
| | - Andrzej Eljaszewicz
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland; Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Bialystok, Poland
| | - Yifan Meng
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland; Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, and the Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Paulina Wawrzyniak
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Swati Acharya
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Can Altunbulakli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Patrick Westermann
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Anita Dreher
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | | | - Chengshuo Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, and the Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Luo Zhang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, and the Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Kari C Nadeau
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, and the Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.
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46
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Dahlgren MW, Molofsky AB. All along the watchtower: group 2 innate lymphoid cells in allergic responses. Curr Opin Immunol 2018; 54:13-19. [PMID: 29860003 DOI: 10.1016/j.coi.2018.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/04/2018] [Accepted: 05/09/2018] [Indexed: 12/19/2022]
Abstract
Group 2 innate lymphoid cells (ILC2) are a subset of innate lymphocytes that responds to local, tissue-derived signals and initiates allergic immune responses. ILC2 activation promotes the recruitment of eosinophils, polarization of alternatively activated macrophages, and tissue-remodeling, processes associated with the 'weep and sweep' response to helminthic worm colonization and infection. ILC2s also coordinate both physiologic and pathologic type 2 allergic immune responses, including promoting normal tissue development and remodeling and driving allergic pathology such as atopic dermatitis and allergic asthma. In this review we summarize recent advances in ILC2 biology, particularly focusing on how local cells and signals coordinately regulate ILC2s, how this may influence physiologic processes, and how ILC2 cooperate with adaptive T helper type 2 cells to drive pathologic allergic inflammation.
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Affiliation(s)
- Madelene W Dahlgren
- Department of Laboratory Medicine, University of California San Francisco, United States
| | - Ari B Molofsky
- Department of Laboratory Medicine, University of California San Francisco, United States.
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