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Laurie SJ, Foster JP, Bruce DW, Bommiasamy H, Kolupaev OV, Yazdimamaghani M, Pattenden SG, Chao NJ, Sarantopoulos S, Parker JS, Davis IJ, Serody JS. Type II innate lymphoid cell plasticity contributes to impaired reconstitution after allogeneic hematopoietic stem cell transplantation. Nat Commun 2024; 15:6000. [PMID: 39019846 PMCID: PMC11255294 DOI: 10.1038/s41467-024-50263-7] [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: 04/25/2023] [Accepted: 07/02/2024] [Indexed: 07/19/2024] Open
Abstract
Type II innate lymphoid cells (ILC2s) maintain homeostasis and barrier integrity in mucosal tissues. In both mice and humans, ILC2s poorly reconstitute after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Determining the mechanisms involved in their impaired reconstitution could improve transplant outcomes. By integrating single-cell chromatin and transcriptomic analyses of transplanted ILC2s, we identify a previously unreported population of converted ILC1-like cells in the mouse small intestine post-transplant. Exposure of ILC2s to proinflammatory cytokines resulted in a mixed ILC1-ILC2 phenotype but was able to convert only a small population of ILC2s to ILC1s, which were found post-transplant. Whereas ILC2s protected against acute graft-versus-host disease (aGVHD) mediated mortality, infusion of proinflammatory cytokine-exposed ILC2s accelerated aGvHD. Interestingly, murine ILC2 reconstitution post-HSCT is decreased in the presence of alloreactive T cells. Finally, peripheral blood cells from human patients with aGvHD have an altered ILC2-associated chromatin landscape compared to transplanted controls. These data demonstrate that following transplantation ILC2s convert to a pro-pathogenic population with an ILC1-like chromatin state and provide insights into the contribution of ILC plasticity to the impaired reconstitution of ILC2 cells, which is one of several potential mechanisms for the poor reconstitution of these important cells after allo-HSCT.
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Affiliation(s)
- Sonia J Laurie
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Joseph P Foster
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
- Curriculum in Bioinformatics & Computational Biology, University of North Carolina, Chapel Hill, NC, USA
| | - Danny W Bruce
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Hemamalini Bommiasamy
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Oleg V Kolupaev
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
- Duke Eye Center, Duke University, Durham, NC, USA
| | - Mostafa Yazdimamaghani
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Samantha G Pattenden
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, University of North Carolina Eshelman School of Pharmacy, Chapel Hill, NC, USA
| | - Nelson J Chao
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, Duke Cancer Institute, Durham, NC, USA
| | - Stefanie Sarantopoulos
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, Duke Cancer Institute, Durham, NC, USA
| | - Joel S Parker
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Ian J Davis
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Jonathan S Serody
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
- Department of Microbiology & Immunology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
- Division of Hematology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
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2
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Schmitt P, Duval A, Camus M, Lefrançais E, Roga S, Dedieu C, Ortega N, Bellard E, Mirey E, Mouton-Barbosa E, Burlet-Schiltz O, Gonzalez-de-Peredo A, Cayrol C, Girard JP. TL1A is an epithelial alarmin that cooperates with IL-33 for initiation of allergic airway inflammation. J Exp Med 2024; 221:e20231236. [PMID: 38597952 PMCID: PMC11010340 DOI: 10.1084/jem.20231236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 02/07/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024] Open
Abstract
Epithelium-derived cytokines or alarmins, such as interleukin-33 (IL-33) and thymic stromal lymphopoietin (TSLP), are major players in type 2 immunity and asthma. Here, we demonstrate that TNF-like ligand 1A (TL1A) is an epithelial alarmin, constitutively expressed in alveolar epithelium at steady state in both mice and humans, which cooperates with IL-33 for early induction of IL-9high ILC2s during the initiation of allergic airway inflammation. Upon synergistic activation by IL-33 and TL1A, lung ILC2s acquire a transient IL-9highGATA3low "ILC9" phenotype and produce prodigious amounts of IL-9. A combination of large-scale proteomic analyses, lung intravital microscopy, and adoptive transfer of ILC9 cells revealed that high IL-9 expression distinguishes a multicytokine-producing state-of-activated ILC2s with an increased capacity to initiate IL-5-dependent allergic airway inflammation. Similar to IL-33 and TSLP, TL1A is expressed in airway basal cells in healthy and asthmatic human lungs. Together, these results indicate that TL1A is an epithelium-derived cytokine and an important cofactor of IL-33 in the airways.
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Affiliation(s)
- Pauline Schmitt
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Anais Duval
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Mylène Camus
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Emma Lefrançais
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Stéphane Roga
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Cécile Dedieu
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Nathalie Ortega
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Elisabeth Bellard
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Emilie Mirey
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Emmanuelle Mouton-Barbosa
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Anne Gonzalez-de-Peredo
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Corinne Cayrol
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
| | - Jean-Philippe Girard
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), Toulouse, France
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3
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Laky K, Frischmeyer-Guerrerio PA. Development and dysfunction of structural cells in eosinophilic esophagitis. J Allergy Clin Immunol 2024; 153:1485-1499. [PMID: 38849184 DOI: 10.1016/j.jaci.2024.04.006] [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] [Received: 12/18/2023] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 06/09/2024]
Abstract
Eosinophilic esophagitis (EoE) is a disorder characterized by dysfunction and chronic local inflammation of the esophagus. The incidence and prevalence of EoE are increasing worldwide. The mechanisms responsible are poorly understood, and effective treatment options are limited. From the lumen outward, the esophagus comprises stratified squamous epithelium, lamina propria, and muscle. The tissue-specific nature of EoE strongly suggests that structural cells in the esophagus are involved in the EoE diathesis. Epithelial basal cell hyperplasia and dilated intercellular spaces are cardinal features of EoE. Some patients with EoE develop lamina propria fibrosis, strictures, or esophageal muscle dysmotility. Clinical symptoms of EoE are only weakly correlated with peak eosinophil count, implying that other cell types contribute to EoE pathogenesis. Epithelial, endothelial, muscle, and fibroblast cells can each initiate inflammation and repair, regulate tissue resident immune cells, recruit peripheral leukocytes, and tailor adaptive immune cell responses. A better understanding of how structural cells maintain tissue homeostasis, respond to cell-intrinsic and cell-extrinsic stressors, and exacerbate and/or resolve inflammatory responses in the esophagus is needed. This knowledge will facilitate the development of more efficacious treatment strategies for EoE that can restore homeostasis of both hematopoietic and structural elements in the esophagus.
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Affiliation(s)
- Karen Laky
- Food Allergy Research Section, Laboratory of Allergic Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md.
| | - Pamela A Frischmeyer-Guerrerio
- Food Allergy Research Section, Laboratory of Allergic Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
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4
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Son A, Baral I, Falduto GH, Schwartz DM. Locus of (IL-9) control: IL9 epigenetic regulation in cellular function and human disease. Exp Mol Med 2024; 56:1331-1339. [PMID: 38825637 PMCID: PMC11263352 DOI: 10.1038/s12276-024-01241-y] [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] [Received: 11/16/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 06/04/2024] Open
Abstract
Interleukin-9 (IL-9) is a multifunctional cytokine with roles in a broad cross-section of human diseases. Like many cytokines, IL-9 is transcriptionally regulated by a group of noncoding regulatory elements (REs) surrounding the IL9 gene. These REs modulate IL-9 transcription by forming 3D loops that recruit transcriptional machinery. IL-9-promoting transcription factors (TFs) can bind REs to increase locus accessibility and permit chromatin looping, or they can be recruited to already accessible chromatin to promote transcription. Ample mechanistic and genome-wide association studies implicate this interplay between IL-9-modulating TFs and IL9 cis-REs in human physiology, homeostasis, and disease.
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Affiliation(s)
- Aran Son
- Neuroscience Department, International School for Advanced Studies (SISSA), via Bonomea 265, Trieste, 34136, Italy
| | - Ishita Baral
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Guido H Falduto
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Daniella M Schwartz
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA.
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5
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Lu HF, Zhou YC, Luo DD, Yang DH, Wang XJ, Cheng BH, Zeng XH. ILC2s: Unraveling the innate immune orchestrators in allergic inflammation. Int Immunopharmacol 2024; 131:111899. [PMID: 38513576 DOI: 10.1016/j.intimp.2024.111899] [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] [Received: 01/01/2024] [Revised: 03/05/2024] [Accepted: 03/17/2024] [Indexed: 03/23/2024]
Abstract
The prevalence rate of allergic diseases including asthma, atopic rhinitis (AR) and atopic dermatitis (AD) has been significantly increasing in recent decades due to environmental changes and social developments. With the study of innate lymphoid cells, the crucial role played by type 2 innate lymphoid cells (ILC2s) have been progressively unveiled in allergic diseases. ILC2s, which are a subset of innate lymphocytes initiate allergic responses. They respond swiftly during the onset of allergic reactions and produce type 2 cytokines, working in conjunction with T helper type 2 (Th2) cells to induce and sustain type 2 immune responses. The role of ILC2s represents an intriguing frontier in immunology; however, the intricate immune mechanisms of ILC2s in allergic responses remain relatively poorly understood. To gain a comphrehensive understanding of the research progress of ILC2, we summarize recent advances in ILC2s biology in pathologic allergic inflammation to inspire novel approaches for managing allergic diseases.
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Affiliation(s)
- Hui-Fei Lu
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China; Department of Otolaryngology, Shenzhen Key Laboratory of Otolaryngology, Shenzhen Institute of Otolaryngology, Shenzhen Longgang Otolaryngology Hospital, Shenzhen, 518172, China
| | - Yi-Chi Zhou
- Department of Gastroenterology, Beijing University of Chinese Medicine Shenzhen Hospital (Longgang), Shenzhen 518172, China
| | - Dan-Dan Luo
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China
| | - Dun-Hui Yang
- Department of Otolaryngology, Shenzhen Key Laboratory of Otolaryngology, Shenzhen Institute of Otolaryngology, Shenzhen Longgang Otolaryngology Hospital, Shenzhen, 518172, China
| | - Xi-Jia Wang
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China
| | - Bao-Hui Cheng
- Department of Otolaryngology, Shenzhen Key Laboratory of Otolaryngology, Shenzhen Institute of Otolaryngology, Shenzhen Longgang Otolaryngology Hospital, Shenzhen, 518172, China.
| | - Xian-Hai Zeng
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China; Department of Otolaryngology, Shenzhen Key Laboratory of Otolaryngology, Shenzhen Institute of Otolaryngology, Shenzhen Longgang Otolaryngology Hospital, Shenzhen, 518172, China.
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6
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Lu HF, Zhou YC, Yang LT, Zhou Q, Wang XJ, Qiu SQ, Cheng BH, Zeng XH. Involvement and repair of epithelial barrier dysfunction in allergic diseases. Front Immunol 2024; 15:1348272. [PMID: 38361946 PMCID: PMC10867171 DOI: 10.3389/fimmu.2024.1348272] [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: 12/02/2023] [Accepted: 01/15/2024] [Indexed: 02/17/2024] Open
Abstract
The epithelial barrier serves as a critical defense mechanism separating the human body from the external environment, fulfilling both physical and immune functions. This barrier plays a pivotal role in shielding the body from environmental risk factors such as allergens, pathogens, and pollutants. However, since the 19th century, the escalating threats posed by environmental pollution, global warming, heightened usage of industrial chemical products, and alterations in biodiversity have contributed to a noteworthy surge in allergic disease incidences. Notably, allergic diseases frequently exhibit dysfunction in the epithelial barrier. The proposed epithelial barrier hypothesis introduces a novel avenue for the prevention and treatment of allergic diseases. Despite increased attention to the role of barrier dysfunction in allergic disease development, numerous questions persist regarding the mechanisms underlying the disruption of normal barrier function. Consequently, this review aims to provide a comprehensive overview of the epithelial barrier's role in allergic diseases, encompassing influencing factors, assessment techniques, and repair methodologies. By doing so, it seeks to present innovative strategies for the prevention and treatment of allergic diseases.
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Affiliation(s)
- Hui-Fei Lu
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Key Laboratory of Otolaryngology, Institute of Otolaryngology Shenzhen, Shenzhen, China
| | - Yi-Chi Zhou
- Department of Gastroenterology, Beijing University of Chinese Medicine Shenzhen Hospital (Longgang), Shenzhen, China
| | - Li-Tao Yang
- Clinical Laboratory Department of The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People’s Hospital of Shenzhen, Shenzhen, China
| | - Qian Zhou
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Xi-Jia Wang
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Key Laboratory of Otolaryngology, Institute of Otolaryngology Shenzhen, Shenzhen, China
| | - Shu-Qi Qiu
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Key Laboratory of Otolaryngology, Institute of Otolaryngology Shenzhen, Shenzhen, China
| | - Bao-Hui Cheng
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Key Laboratory of Otolaryngology, Institute of Otolaryngology Shenzhen, Shenzhen, China
| | - Xian-Hai Zeng
- Department of Graduate and Scientific Research, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Key Laboratory of Otolaryngology, Institute of Otolaryngology Shenzhen, Shenzhen, China
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Takami D, Abe S, Shimba A, Asahi T, Cui G, Tani-Ichi S, Hara T, Miyata K, Ikutani M, Takatsu K, Oike Y, Ikuta K. Lung group 2 innate lymphoid cells differentially depend on local IL-7 for their distribution, activation, and maintenance in innate and adaptive immunity-mediated airway inflammation. Int Immunol 2023; 35:513-530. [PMID: 37493250 DOI: 10.1093/intimm/dxad029] [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: 05/04/2022] [Accepted: 07/24/2023] [Indexed: 07/27/2023] Open
Abstract
Interleukin-7 (IL-7) is a cytokine critical for the development and maintenance of group 2 innate lymphoid cells (ILC2s). ILC2s are resident in peripheral tissues such as the intestine and lung. However, whether IL-7 produced in the lung plays a role in the maintenance and function of lung ILC2s during airway inflammation remains unknown. IL-7 was expressed in bronchoalveolar epithelial cells and lymphatic endothelial cells (LECs). To investigate the role of local IL-7 in lung ILC2s, we generated two types of IL-7 conditional knockout (IL-7cKO) mice: Sftpc-Cre (SPC-Cre) IL-7cKO mice specific for bronchial epithelial cells and type 2 alveolar epithelial cells and Lyve1-Cre IL-7cKO mice specific for LECs. In steady state, ILC2s were located near airway epithelia, although lung ILC2s were unchanged in the two lines of IL-7cKO mice. In papain-induced airway inflammation dependent on innate immunity, lung ILC2s localized near bronchia via CCR4 expression, and eosinophil infiltration and type 2 cytokine production were reduced in SPC-Cre IL-7cKO mice. In contrast, in house dust mite (HDM)-induced airway inflammation dependent on adaptive immunity, lung ILC2s localized near lymphatic vessels via their CCR2 expression 2 weeks after the last challenge. Furthermore, lung ILC2s were decreased in Lyve1-Cre IL-7cKO mice in the HDM-induced inflammation because of decreased cell survival and proliferation. Finally, administration of anti-IL-7 antibody attenuated papain-induced inflammation by suppressing the activation of ILC2s. Thus, this study demonstrates that IL-7 produced by bronchoalveolar epithelial cells and LECs differentially controls the activation and maintenance of lung ILC2s, where they are localized in airway inflammation.
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Affiliation(s)
- Daichi Takami
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Shinya Abe
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Akihiro Shimba
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Takuma Asahi
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
- Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Guangwei Cui
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Shizue Tani-Ichi
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Takahiro Hara
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Keishi Miyata
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Masashi Ikutani
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8511, Japan
| | - Kiyoshi Takatsu
- Toyama Prefectural Institute for Pharmaceutical Research, Toyama 930-8501, Japan
| | - Yuichi Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Koichi Ikuta
- Department of Virus Research, Laboratory of Immune Regulation, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
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8
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Thio CLP, Chang YJ. The modulation of pulmonary group 2 innate lymphoid cell function in asthma: from inflammatory mediators to environmental and metabolic factors. Exp Mol Med 2023; 55:1872-1884. [PMID: 37696890 PMCID: PMC10545775 DOI: 10.1038/s12276-023-01021-0] [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: 12/30/2022] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 09/13/2023] Open
Abstract
A dysregulated type 2 immune response is one of the fundamental causes of allergic asthma. Although Th2 cells are undoubtedly central to the pathogenesis of allergic asthma, the discovery of group 2 innate lymphoid cells (ILC2s) has added another layer of complexity to the etiology of this chronic disease. Through their inherent innate type 2 responses, ILC2s not only contribute to the initiation of airway inflammation but also orchestrate the recruitment and activation of other members of innate and adaptive immunity, further amplifying the inflammatory response. Moreover, ILC2s exhibit substantial cytokine plasticity, as evidenced by their ability to produce type 1- or type 17-associated cytokines under appropriate conditions, underscoring their potential contribution to nonallergic, neutrophilic asthma. Thus, understanding the mechanisms of ILC2 functions is pertinent. In this review, we present an overview of the current knowledge on ILC2s in asthma and the regulatory factors that modulate lung ILC2 functions in various experimental mouse models of asthma and in humans.
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Affiliation(s)
| | - Ya-Jen Chang
- Institute of Biomedical Sciences, Academia Sinica, Taipei City, 115, Taiwan.
- Institute of Translational Medicine and New Drug Development, China Medical University, Taichung City, 404, Taiwan.
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9
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Wang X, Kong Y, Zheng B, Zhao X, Zhao M, Wang B, Liu C, Yan P. Tissue-resident innate lymphoid cells in asthma. J Physiol 2023; 601:3995-4012. [PMID: 37488944 DOI: 10.1113/jp284686] [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] [Received: 03/13/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023] Open
Abstract
Asthma is a chronic airway inflammatory disease whose global incidence increases annually. The role of innate lymphoid cells (ILCs) is a crucial aspect of asthma research with respect to different endotypes of asthma. Based on its pathological and inflammatory features, asthma is divided into type 2 high and type 2 low endotypes. Type-2 high asthma is distinguished by the activation of type 2 immune cells, including T helper 2 (Th2) cells and ILC2s; the production of cytokines interleukin (IL)-4, IL-5 and IL-13; eosinophilic aggregation; and bronchial hyper-responsiveness. Type-2 low asthma represents a variety of endotypes other than type 2 high endotype such as the IL-1β/ILC3/neutrophil endotype and a paucigranulocytic asthma, which may be insensitive to corticosteroid treatment and/or associated with obesity. The complexity of asthma is due to the involvement of multiple cell types, including tissue-resident ILCs and other innate immune cells including bronchial epithelial cells, dendritic cells, macrophages and eosinophils, which provide immediate defence against viruses, pathogens and allergens. On this basis, innate immune cells and adaptive immune cells combine to induce the pathological condition of asthma. In addition, the plasticity of ILCs increases the heterogeneity of asthma. This review focuses on the phenotypes of tissue-resident ILCs and their roles in the different endotypes of asthma, as well as the mechanisms of tissue-resident ILCs and other immune cells. Based on the phenotypes, roles and mechanisms of immune cells, the therapeutic strategies for asthma are reviewed.
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Affiliation(s)
- Xiaoxu Wang
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yue Kong
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Bingqing Zheng
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiaomin Zhao
- Department of traditional Chinese medicine, Shandong Traditional Chinese Medicine College, YanTai, China
| | - Mingzhe Zhao
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Bin Wang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chang Liu
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Peizheng Yan
- Shandong University of Traditional Chinese Medicine, Jinan, China
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10
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Schmidt C, Harberts A, Reimers D, Bertram T, Voß LC, Schmid J, Lory NC, Spohn M, Koch-Nolte F, Huber S, Raczkowski F, Breloer M, Mittrücker HW. IRF4 is required for migration of CD4 + T cells to the intestine but not for Th2 and Th17 cell maintenance. Front Immunol 2023; 14:1182502. [PMID: 37469513 PMCID: PMC10352983 DOI: 10.3389/fimmu.2023.1182502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/02/2023] [Indexed: 07/21/2023] Open
Abstract
The transcription factor Interferon Regulatory Factor 4 (IRF4) is central in control of T cell activation and differentiation. Deficiency of IRF4 results in severe immune deficiency and affects maturation and function of most if not all T cell subsets. Here we use mouse infection models for Citrobacter rodentium and Strongyloides ratti to analyze the function of IRF4 in T helper (Th) 17 and Th2 cell responses, respectively. IRF4 deficient mice were impaired in the control of both pathogens, failed to mount Th17 and Th2 cell responses and showed impaired recruitment of T helper cells to the intestine, the infection site of both pathogens. Compromised intestinal migration was associated with reduced expression of the intestinal homing receptors α4β7 integrin, CCR9 and GPR15. Identification of IRF4 binding sites in the gene loci of these receptors suggests a direct control of their expression by IRF4. Competitive T cell transfer assays further demonstrated that loss of one functional Irf4 allele already affected intestinal accumulation and Th2 and Th17 cell generation, indicating that lower IRF4 levels are of disadvantage for Th2 and Th17 cell differentiation as well as their migration to the intestine. Conversion of peripheral CD4+ T cells from an Irf4 wildtype to an Irf4 heterozygous or from an Irf4 heterozygous to a homozygous mutant genotype after C. rodentium or S. ratti infection did not reduce their capacity to produce Th17 or Th2 cytokines and only partially affected their persistence in the intestine, revealing that IRF4 is not essential for maintenance of the Th2 and Th17 phenotype and for survival of these T helper cells in the intestine. In conclusion, we demonstrate that the expression levels of IRF4 determine Th2 and Th17 cell differentiation and their intestinal accumulation but that IRF4 expression is not crucial for Th2 and Th17 cell survival.
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Affiliation(s)
- Constantin Schmidt
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Aenne Harberts
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniel Reimers
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tabea Bertram
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Leonie Caroline Voß
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joanna Schmid
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Niels Christian Lory
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Spohn
- Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Research Institute Children’s Cancer Center Hamburg, Hamburg, Germany
- Bioinformatics Core Unit, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Friedrich Koch-Nolte
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Samuel Huber
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Friederike Raczkowski
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Minka Breloer
- Section for Molecular Biology and Immunology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
- Department for Biology, University Hamburg, Hamburg, Germany
| | - Hans-Willi Mittrücker
- Department for Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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11
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Cannon A, Pajulas A, Kaplan MH, Zhang J. The Dichotomy of Interleukin-9 Function in the Tumor Microenvironment. J Interferon Cytokine Res 2023; 43:229-245. [PMID: 37319357 PMCID: PMC10282829 DOI: 10.1089/jir.2023.0035] [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: 03/13/2023] [Accepted: 04/25/2023] [Indexed: 06/17/2023] Open
Abstract
Interleukin 9 (IL-9) is a cytokine with potent proinflammatory properties that plays a central role in pathologies such as allergic asthma, immunity to parasitic infection, and autoimmunity. More recently, IL-9 has garnered considerable attention in tumor immunity. Historically, IL-9 has been associated with a protumor function in hematological malignancies and an antitumor function in solid malignancies. However, recent discoveries of the dynamic role of IL-9 in cancer progression suggest that IL-9 can act as both a pro- or antitumor factor in various hematological and solid malignancies. This review summarizes IL-9-dependent control of tumor growth, regulation, and therapeutic applicability of IL-9 blockade and IL-9-producing cells in cancer.
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Affiliation(s)
- Anthony Cannon
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Abigail Pajulas
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Mark H. Kaplan
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Brown Center for Immunotherapy, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jilu Zhang
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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12
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Korchagina AA, Shein SA, Koroleva E, Tumanov AV. Transcriptional control of ILC identity. Front Immunol 2023; 14:1146077. [PMID: 36969171 PMCID: PMC10033543 DOI: 10.3389/fimmu.2023.1146077] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/21/2023] [Indexed: 03/12/2023] Open
Abstract
Innate lymphoid cells (ILCs) are heterogeneous innate immune cells which participate in host defense, mucosal repair and immunopathology by producing effector cytokines similarly to their adaptive immune cell counterparts. The development of ILC1, 2, and 3 subsets is controlled by core transcription factors: T-bet, GATA3, and RORγt, respectively. ILCs can undergo plasticity and transdifferentiate to other ILC subsets in response to invading pathogens and changes in local tissue environment. Accumulating evidence suggests that the plasticity and the maintenance of ILC identity is controlled by a balance between these and additional transcription factors such as STATs, Batf, Ikaros, Runx3, c-Maf, Bcl11b, and Zbtb46, activated in response to lineage-guiding cytokines. However, how interplay between these transcription factors leads to ILC plasticity and the maintenance of ILC identity remains hypothetical. In this review, we discuss recent advances in understanding transcriptional regulation of ILCs in homeostatic and inflammatory conditions.
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13
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Sabatel C, Bureau F. The innate immune brakes of the lung. Front Immunol 2023; 14:1111298. [PMID: 36776895 PMCID: PMC9915150 DOI: 10.3389/fimmu.2023.1111298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/02/2023] [Indexed: 01/29/2023] Open
Abstract
Respiratory mucosal surfaces are continuously exposed to not only innocuous non-self antigens but also pathogen-associated molecular patterns (PAMPs) originating from environmental or symbiotic microbes. According to either "self/non-self" or "danger" models, this should systematically result in homeostasis breakdown and the development of immune responses directed to inhaled harmless antigens, such as T helper type (Th)2-mediated asthmatic reactions, which is fortunately not the case in most people. This discrepancy implies the existence, in the lung, of regulatory mechanisms that tightly control immune homeostasis. Although such mechanisms have been poorly investigated in comparison to the ones that trigger immune responses, a better understanding of them could be useful in the development of new therapeutic strategies against lung diseases (e.g., asthma). Here, we review current knowledge on innate immune cells that prevent the development of aberrant immune responses in the lung, thereby contributing to mucosal homeostasis.
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Affiliation(s)
- Catherine Sabatel
- Laboratory of Cellular and Molecular Immunology, GIGA-Research, University of Liège, Liège, Belgium,Faculty of Veterinary Medicine, University of Liège, Liège, Belgium,*Correspondence: Catherine Sabatel,
| | - Fabrice Bureau
- Laboratory of Cellular and Molecular Immunology, GIGA-Research, University of Liège, Liège, Belgium,Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
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14
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León B. Understanding the development of Th2 cell-driven allergic airway disease in early life. FRONTIERS IN ALLERGY 2023; 3:1080153. [PMID: 36704753 PMCID: PMC9872036 DOI: 10.3389/falgy.2022.1080153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/21/2022] [Indexed: 01/12/2023] Open
Abstract
Allergic diseases, including atopic dermatitis, allergic rhinitis, asthma, and food allergy, are caused by abnormal responses to relatively harmless foreign proteins called allergens found in pollen, fungal spores, house dust mites (HDM), animal dander, or certain foods. In particular, the activation of allergen-specific helper T cells towards a type 2 (Th2) phenotype during the first encounters with the allergen, also known as the sensitization phase, is the leading cause of the subsequent development of allergic disease. Infants and children are especially prone to developing Th2 cell responses after initial contact with allergens. But in addition, the rates of allergic sensitization and the development of allergic diseases among children are increasing in the industrialized world and have been associated with living in urban settings. Particularly for respiratory allergies, greater susceptibility to developing allergic Th2 cell responses has been shown in children living in urban environments containing low levels of microbial contaminants, principally bacterial endotoxins [lipopolysaccharide (LPS)], in the causative aeroallergens. This review highlights the current understanding of the factors that balance Th2 cell immunity to environmental allergens, with a particular focus on the determinants that program conventional dendritic cells (cDCs) toward or away from a Th2 stimulatory function. In this context, it discusses transcription factor-guided functional specialization of type-2 cDCs (cDC2s) and how the integration of signals derived from the environment drives this process. In addition, it analyzes observational and mechanistic studies supporting an essential role for innate sensing of microbial-derived products contained in aeroallergens in modulating allergic Th2 cell immune responses. Finally, this review examines whether hyporesponsiveness to microbial stimulation, particularly to LPS, is a risk factor for the induction of Th2 cell responses and allergic sensitization during infancy and early childhood and the potential factors that may affect early-age response to LPS and other environmental microbial components.
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Affiliation(s)
- Beatriz León
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
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15
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Zhang L, Chen Z, Wang L, Luo X. Bullous pemphigoid: The role of type 2 inflammation in its pathogenesis and the prospect of targeted therapy. Front Immunol 2023; 14:1115083. [PMID: 36875098 PMCID: PMC9978795 DOI: 10.3389/fimmu.2023.1115083] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
Bullous pemphigoid (BP) is an autoimmune disease that mainly occurs in the elderly, severely affecting their health and life quality. Traditional therapy for BP is mainly based on the systemic use of corticosteroids, but long-term use of corticosteroids results in a series of side effects. Type 2 inflammation is an immune response largely mediated by group 2 innate lymphoid cells, type 2 T helper cells, eosinophils, and inflammatory cytokines, such as interleukin (IL)-4, IL-5 and IL-13. Among patients with BP, the levels of immunoglobulin E and eosinophils are significantly increased in the peripheral blood and skin lesions, suggesting that the pathogenesis is tightly related to type 2 inflammation. To date, various targeted drugs have been developed to treat type 2 inflammatory diseases. In this review, we summarize the general process of type 2 inflammation, its role in the pathogenesis of BP and potential therapeutic targets and medications related to type 2 inflammation. The content of this review may contribute to the development of more effective drugs with fewer side effects for the treatment of BP.
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Affiliation(s)
- Luyao Zhang
- Department of Allergy and Immunology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zihua Chen
- Department of Allergy and Immunology, Huashan Hospital, Fudan University, Shanghai, China
| | - Lanting Wang
- Department of Allergy and Immunology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaoqun Luo
- Department of Allergy and Immunology, Huashan Hospital, Fudan University, Shanghai, China
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16
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Xu H, Pan G, Wang J. Repairing Mechanisms for Distal Airway Injuries and Related Targeted Therapeutics for Chronic Lung Diseases. Cell Transplant 2023; 32:9636897231196489. [PMID: 37698245 PMCID: PMC10498699 DOI: 10.1177/09636897231196489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 09/13/2023] Open
Abstract
Chronic lung diseases, such as chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF), involve progressive and irreversible destruction and pathogenic remodeling of airways and have become the leading health care burden worldwide. Pulmonary tissue has extensive capacities to launch injury-responsive repairing programs (IRRPs) to replace the damaged or dead cells upon acute lung injuries. However, the IRRPs are frequently compromised in chronic lung diseases. In this review, we aim to provide an overview of somatic stem cell subpopulations within distal airway epithelium and the underlying mechanisms mediating their self-renewal and trans-differentiation under both physiological and pathological circumstances. We also compared the differences between humans and mice on distal airway structure and stem cell composition. At last, we reviewed the current status and future directions for the development of targeted therapeutics on defective distal airway regeneration and repairment in chronic lung diseases.
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Affiliation(s)
- Huahua Xu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou International Bio Island, Guangzhou, China
| | - Guihong Pan
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jun Wang
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
- The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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17
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Christenson JL, Williams MM, Richer JK. The underappreciated role of resident epithelial cell populations in metastatic progression: contributions of the lung alveolar epithelium. Am J Physiol Cell Physiol 2022; 323:C1777-C1790. [PMID: 36252127 PMCID: PMC9744653 DOI: 10.1152/ajpcell.00181.2022] [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: 04/29/2022] [Revised: 10/17/2022] [Accepted: 10/17/2022] [Indexed: 12/14/2022]
Abstract
Metastatic cancer is difficult to treat and is responsible for the majority of cancer-related deaths. After cancer cells initiate metastasis and successfully seed a distant site, resident cells in the tissue play a key role in determining how metastatic progression develops. The lung is the second most frequent site of metastatic spread, and the primary site of metastasis within the lung is alveoli. The most abundant cell type in the alveolar niche is the epithelium. This review will examine the potential contributions of the alveolar epithelium to metastatic progression. It will also provide insight into other ways in which alveolar epithelial cells, acting as immune sentinels within the lung, may influence metastatic progression through their various interactions with cells in the surrounding microenvironment.
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Affiliation(s)
- Jessica L Christenson
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Michelle M Williams
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Jennifer K Richer
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
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18
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Badrani JH, Strohm AN, Lacasa L, Civello B, Cavagnero K, Haung YA, Amadeo M, Naji LH, Lund SJ, Leng A, Kim H, Baum RE, Khorram N, Mondal M, Seumois G, Pilotte J, Vanderklish PW, McGee HM, Doherty TA. RNA-binding protein RBM3 intrinsically suppresses lung innate lymphoid cell activation and inflammation partially through CysLT1R. Nat Commun 2022; 13:4435. [PMID: 35908044 PMCID: PMC9338970 DOI: 10.1038/s41467-022-32176-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 07/19/2022] [Indexed: 11/09/2022] Open
Abstract
Innate lymphoid cells (ILC) promote lung inflammation in asthma through cytokine production. RNA-binding proteins (RBPs) are critical post-transcriptional regulators, although less is known about RBPs in ILC biology. Here, we demonstrate that RNA-binding motif 3 (RBM3) is highly expressed in lung ILCs and is further induced by alarmins TSLP and IL-33. Rbm3-/- and Rbm3-/-Rag2-/- mice exposed to asthma-associated Alternaria allergen develop enhanced eosinophilic lung inflammation and ILC activation. IL-33 stimulation studies in vivo and in vitro show that RBM3 suppressed lung ILC responses. Further, Rbm3-/- ILCs from bone marrow chimeric mice display increased ILC cytokine production suggesting an ILC-intrinsic suppressive function of RBM3. RNA-sequencing of Rbm3-/- lung ILCs demonstrates increased expression of type 2/17 cytokines and cysteinyl leukotriene 1 receptor (CysLT1R). Finally, Rbm3-/-Cyslt1r-/- mice show dependence on CysLT1R for accumulation of ST2+IL-17+ ILCs. Thus, RBM3 intrinsically regulates lung ILCs during allergen-induced type 2 inflammation that is partially dependent on CysLT1R.
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Affiliation(s)
- Jana H. Badrani
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Allyssa N. Strohm
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA ,Veterans Affairs San Diego Health Care System, La Jolla, CA USA
| | - Lee Lacasa
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Blake Civello
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Kellen Cavagnero
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Yung-An Haung
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA ,grid.145695.a0000 0004 1798 0922Department of Microbiology and Immunology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Michael Amadeo
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Luay H. Naji
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Sean J. Lund
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Anthea Leng
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Hyojoung Kim
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Rachel E. Baum
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Naseem Khorram
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA
| | - Monalisa Mondal
- grid.185006.a0000 0004 0461 3162La Jolla Institute, La Jolla, CA USA
| | - Grégory Seumois
- grid.185006.a0000 0004 0461 3162La Jolla Institute, La Jolla, CA USA
| | - Julie Pilotte
- grid.214007.00000000122199231The Scripps Research Institute, La Jolla, CA USA
| | | | - Heather M. McGee
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA ,grid.250671.70000 0001 0662 7144NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute, La Jolla, CA USA ,grid.410425.60000 0004 0421 8357Departments of Radiation Oncology and Immuno-Oncology, City of Hope, Duarte, CA USA ,Department of Molecular Medicine, La Jolla, CA USA
| | - Taylor A. Doherty
- grid.266100.30000 0001 2107 4242Divison of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, CA USA ,Veterans Affairs San Diego Health Care System, La Jolla, CA USA
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19
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Olguín-Martínez E, Muñoz-Paleta O, Ruiz-Medina BE, Ramos-Balderas JL, Licona-Limón I, Licona-Limón P. IL-33 and the PKA Pathway Regulate ILC2 Populations Expressing IL-9 and ST2. Front Immunol 2022; 13:787713. [PMID: 35711429 PMCID: PMC9197159 DOI: 10.3389/fimmu.2022.787713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 04/12/2022] [Indexed: 11/13/2022] Open
Abstract
Type 2 Innate lymphoid cells (ILC2s) are tissue-resident immune cells activated by epithelial-derived alarmins upon tissue damage. They regulate immunity against helminth parasites and allergies by expressing type 2 immune response cytokines including IL-9, known to be critical for inducing and potentiating the immune response in such context. Although ILC2s are reported to be the main source of IL-9 in mice during N. brasiliensis infection, the mechanisms that regulate the expression of IL-9 in these cells are yet to be described. Recent studies have shown that in addition to cytokines, multiple molecules can differentially modulate the functions of ILC2s in various contexts both in vitro and in vivo. Among these stimuli are lipid mediators and neuropeptides, which activate the PKA pathway and have been associated with the regulation of type 2 immune cytokines. In this work we found that ILC2s in mice infected with N. brasiliensis can be classified into different groups based on the expression of IL-9 and ST2. These distinct populations were distributed in the lung and the small intestine. Through the development of an in vitro culture system, we sought to determine the stimuli that regulate the expression of these markers in ILC2s. We identified the alarmin IL-33 as being a key player for increased IL-9 expression. Additionally, we found the PKA pathway to be a dual regulator of ILC2 cells, working synergistically with IL-33 to enhance IL-9 production and capable of modulating proliferation and the expression of ILC2 markers. These data provide further evidence of a high heterogeneity between ILC2 subsets in a context dependent manner and calls for careful consideration when choosing the markers to identify these cells in vivo. Distinguishing ILC2 subsets and dissecting their mechanisms of activation is critical for a deeper understanding of the biology of these cells, allowing their manipulation for therapeutic purposes.
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Affiliation(s)
- Enrique Olguín-Martínez
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México City, Mexico
| | - Ofelia Muñoz-Paleta
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México City, Mexico
| | - Blanca E. Ruiz-Medina
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México City, Mexico
| | - Jose Luis Ramos-Balderas
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México City, Mexico
| | | | - Paula Licona-Limón
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México City, Mexico
- *Correspondence: Paula Licona-Limón,
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20
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Finding a Niche: Tissue Immunity and Innate Lymphoid Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1365:57-73. [PMID: 35567741 DOI: 10.1007/978-981-16-8387-9_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The immune system plays essential roles in maintaining homeostasis in mammalian tissues that extend beyond pathogen clearance and host defense. Recently, several homeostatic circuits comprised of paired hematopoietic and non-hematopoietic cells have been described to influence tissue composition and turnover in development and after perturbation. Crucial circuit components include innate lymphoid cells (ILCs), which seed developing organs and shape their resident tissues by influencing progenitor fate decisions, microbial interactions, and neuronal activity. As they develop in tissues, ILCs undergo transcriptional imprinting that encodes receptivity to corresponding signals derived from their resident tissues but ILCs can also shift their transcriptional profiles to adapt to specific types of tissue perturbation. Thus, ILC functions are embedded within their resident tissues, where they constitute key regulators of homeostatic responses that can lead to both beneficial and pathogenic outcomes. Here, we examine the interactions between ILCs and various non-hematopoietic tissue cells, and discuss how specific ILC-tissue cell circuits form essential elements of tissue immunity.
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21
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Li Y, Lan F, Yang Y, Xu Y, Chen Y, Qin X, Lv Z, Wang W, Ying S, Zhang L. The absence of IL-9 reduces allergic airway inflammation by reducing ILC2, Th2 and mast cells in murine model of asthma. BMC Pulm Med 2022; 22:180. [PMID: 35524325 PMCID: PMC9074312 DOI: 10.1186/s12890-022-01976-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/18/2022] [Indexed: 11/16/2022] Open
Abstract
Allergic asthma is an allergic inflammatory disease of the airways, in which numerous cell types and cytokines have been shown to contribute to pathogenesis of the disease. Although increased expression of IL-9 has been shown to influence the activity of structural as well as eosinophils and mast cells in asthma, the influence of IL-9 on function of ILC2 and Th2 cells remains unclear. This study therefore aimed to elucidate the role of IL-9 on ILC2 and Th2 cells using a murine model of asthma. A murine model of asthma was established using wild type (WT) and IL-9-deficient (Il9−/−) transgenic mice sensitized to house dust mite (HDM). Bronchoalveolar lavage fluid (BALF) and lung tissues were collected, and analysed for inflammatory cells (eosinophils, mast cells, Th2 cells and ILC2 cells), histopathological changes, and several cytokines. HDM challenge significantly increased accumulation of ILC2 cells, Th2 cells and mast cells, as well as goblet cell hyperplasia, and the expression of cytokines IL-4, IL-5 and IL-13, but not IFN-γ, in WT mice compared to saline-challenged control group. In contrast, all pathological changes, including infiltration of ILC2 cells, Th2 cells and mast cells, were significantly attenuated in HDM-challenged Il9−/− mice. Furthermore, the number of Ki67+ILC2 cells, Ki67+Th2 cells and Ki67+mast cells were significantly reduced in the absence of IL-9 signalling. These data suggest that IL-9 promotes the proliferation and type 2 cytokine production of type 2 cells in the murine models of asthma, and therefore might be a potential therapeutic target for asthma treatment.
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Affiliation(s)
- Yan Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Otorhinolaryngology, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing Key Laboratory of Nasal Diseases, No. 17, HouGouHuTong, DongCheng District, Beijing, 100730, China
| | - Feng Lan
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Otorhinolaryngology, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing Key Laboratory of Nasal Diseases, No. 17, HouGouHuTong, DongCheng District, Beijing, 100730, China
| | - Yiran Yang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, 10 Xi Tou Tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Yingjie Xu
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, 10 Xi Tou Tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Yalin Chen
- Department of Thyroid Head and Neck Surgery, Qingdao Central Hospital, Qingdao University, Qingdao, China
| | - Xiaofeng Qin
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, 10 Xi Tou Tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Zhe Lv
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, 10 Xi Tou Tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Wei Wang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, 10 Xi Tou Tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Sun Ying
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, 10 Xi Tou Tiao, You An Men Wai, Fengtai District, Beijing, 100069, China.
| | - Luo Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Otorhinolaryngology, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing Key Laboratory of Nasal Diseases, No. 17, HouGouHuTong, DongCheng District, Beijing, 100730, China.
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22
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Lai D, Chen W, Zhang K, Scott MJ, Li Y, Billiar TR, Wilson MA, Fan J. GRK2 regulates group 2 innate lymphoid cell mobilization in sepsis. Mol Med 2022; 28:32. [PMID: 35272622 PMCID: PMC8908620 DOI: 10.1186/s10020-022-00459-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 02/28/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Sepsis induces group 2 innate lymphoid cell (ILC2) expansion in the lung. However, the origin of these lung-recruited ILC2 and the mechanism of ILC2 expansion are unclear. This study aims to determine the origin of lung-recruited ILC2 and its underlying mechanism in sepsis. METHODS Sepsis was induced by cecal ligation and puncture (CLP) model in wild-type, IL-33-deficient and ST2-deficient mice. The frequency, cell number and C-X-C chemokine receptor 4 (CXCR4) expression of ILC2 in bone marrow (BM), blood and lung were measured by flow cytometry. In the in vitro studies, purified ILC2 progenitor (ILC2p) were challenged with IL-33 or G protein-coupled receptor kinase 2 (GRK2) inhibitor, the CXCR4 expression and GRK2 activity were detected by confocal microscopy or flow cytometry. RESULTS We show that IL-33 acts through its receptor, ST2, on BM ILC2p to induce GRK2 expression and subsequent downregulation of cell surface expression of CXCR4, which results in decreasing retention of ILC2p in the BM and promoting expansion of ILC2 in the lung. Importantly, we demonstrate that reduced IL-33 level in aging mice contributes to impaired ILC2 mobilization from BM and accumulation in the lung following sepsis. CONCLUSION This study identifies a novel pathway in regulating ILC2p mobilization and expansion during sepsis and indicates BM as the main source of ILC2 in the lung following sepsis.
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Affiliation(s)
- Dengming Lai
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA ,grid.13402.340000 0004 1759 700XDepartment of Neonatal Surgery, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052 China
| | - Weiwei Chen
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA
| | - Kai Zhang
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA
| | - Melanie J. Scott
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA
| | - Yuehua Li
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA
| | - Timothy R. Billiar
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA ,grid.21925.3d0000 0004 1936 9000McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219 USA
| | - Mark A. Wilson
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA ,grid.413935.90000 0004 0420 3665Research and Development, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA 15240 USA
| | - Jie Fan
- grid.21925.3d0000 0004 1936 9000Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA ,grid.21925.3d0000 0004 1936 9000McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219 USA ,grid.413935.90000 0004 0420 3665Research and Development, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA 15240 USA ,grid.21925.3d0000 0004 1936 9000Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, 15213 USA
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23
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Wu X, Kasmani MY, Zheng S, Khatun A, Chen Y, Winkler W, Zander R, Burns R, Taparowsky EJ, Sun J, Cui W. BATF promotes group 2 innate lymphoid cell-mediated lung tissue protection during acute respiratory virus infection. Sci Immunol 2022; 7:eabc9934. [PMID: 35030033 DOI: 10.1126/sciimmunol.abc9934] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
[Figure: see text].
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Affiliation(s)
- Xiaopeng Wu
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA
| | - Moujtaba Y Kasmani
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Shikan Zheng
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA
| | - Achia Khatun
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Yao Chen
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Wendy Winkler
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA
| | - Ryan Zander
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA
| | - Robert Burns
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA
| | - Elizabeth J Taparowsky
- Department of Biological Sciences, Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
| | - Jie Sun
- Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Weiguo Cui
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI 53213, USA.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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24
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Cayrol C. IL-33, an Alarmin of the IL-1 Family Involved in Allergic and Non Allergic Inflammation: Focus on the Mechanisms of Regulation of Its Activity. Cells 2021; 11:cells11010107. [PMID: 35011670 PMCID: PMC8750818 DOI: 10.3390/cells11010107] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 02/04/2023] Open
Abstract
Interleukin-33 (IL-33) is a member of the interleukin-1 (IL-1) family that is expressed in the nuclei of endothelial and epithelial cells of barrier tissues, among others. It functions as an alarm signal that is released upon tissue or cellular injury. IL-33 plays a central role in the initiation and amplification of type 2 innate immune responses and allergic inflammation by activating various target cells expressing its ST2 receptor, including mast cells and type 2 innate lymphoid cells. Depending on the tissue environment, IL-33 plays a wide variety of roles in parasitic and viral host defense, tissue repair and homeostasis. IL-33 has evolved a variety of sophisticated regulatory mechanisms to control its activity, including nuclear sequestration and proteolytic processing. It is involved in many diseases, including allergic, inflammatory and infectious diseases, and is a promising therapeutic target for the treatment of severe asthma. In this review, I will summarize the literature around this fascinating pleiotropic cytokine. In the first part, I will describe the basics of IL-33, from the discovery of interleukin-33 to its function, including its expression, release and signaling pathway. The second part will be devoted to the regulation of IL-33 protein leading to its activation or inactivation.
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Affiliation(s)
- Corinne Cayrol
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
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25
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Maes B, Smole U, Vanderkerken M, Deswarte K, Van Moorleghem J, Vergote K, Vanheerswynghels M, De Wolf C, De Prijck S, Debeuf N, Pavie B, Toussaint W, Janssens S, Savvides S, Lambrecht BN, Hammad H. The STE20 kinase TAOK3 controls the development house dust mite-induced asthma in mice. J Allergy Clin Immunol 2021; 149:1413-1427.e2. [PMID: 34506849 DOI: 10.1016/j.jaci.2021.08.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/14/2021] [Accepted: 08/03/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND The most common endotype of asthma is type 2-high asthma, which is sometimes driven by adaptive allergen-specific TH2 lymphocytes that react to allergens presented by dendritic cells (DCs), or sometimes by an innate immune response dominated by type 2 innate lymphocytes (ILC2s). Understanding the underlying pathophysiology of asthma is essential to improve patient-tailored therapy. The STE20 kinase thousand-and-one kinase 3 (TAOK3) controls key features in the biology of DCs and lymphocytes, but to our knowledge, its potential usefulness as a target for asthma therapy has not yet been addressed. OBJECTIVE We examined if and how loss of Taok3 affects the development of house dust mite (HDM)-driven allergic asthma in an in vivo mouse model. METHODS Wild-type Taok3+/+ and gene-deficient Taok3-/- mice were sensitized and challenged with HDM, and bronchoalveolar lavage fluid composition, mediastinal lymph node cytokine production, lung histology, and bronchial hyperreactivity measured. Conditional Taok3fl/fl mice were crossed to tissue- and cell-specific specific deletor Cre mice to understand how Taok3 acted on asthma susceptibility. Kinase-dead (KD) Taok3KD mice were generated to probe for the druggability of this pathway. Activation of HDM-specific T cells was measured in adoptively transferred HDM-specific T-cell receptor-transgenic CD4+ T cells. ILC2 biology was assessed by in vivo and in vitro IL-33 stimulation assays in Taok3-/- and Taok3+/+, Taok3KD, and Red5-Cre Taok3fl/fl mice. RESULTS Taok3-/- mice failed to mount salient features of asthma, including airway eosinophilia, TH2 cytokine production, IgE secretion, airway goblet cell metaplasia, and bronchial hyperreactivity compared to controls. This was due to intrinsic loss of Taok3 in hematopoietic and not epithelial cells. Loss of Taok3 resulted in hampered HDM-induced lung DC migration to the draining lymph nodes and defective priming of HDM-specific TH2 cells. Strikingly, HDM and IL-33-induced ILC2 proliferation and function were also severely affected in Taok3-deficient and Taok3KD mice. CONCLUSIONS Absence of Taok3 or loss of its kinase activity protects from HDM-driven allergic asthma as a result of defects in both adaptive DC-mediated TH2 activation and innate ILC2 function. This identifies Taok3 as an interesting drug target, justifying further testing as a new treatment for type 2-high asthma.
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Affiliation(s)
- Bastiaan Maes
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Laboratory of ER Stress and Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Ursula Smole
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Matthias Vanderkerken
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Kim Deswarte
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Justine Van Moorleghem
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Karl Vergote
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Manon Vanheerswynghels
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Caroline De Wolf
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Sofie De Prijck
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Nincy Debeuf
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Benjamin Pavie
- VIB Bioimaging Core, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Wendy Toussaint
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Sophie Janssens
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Laboratory of ER Stress and Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Savvas Savvides
- Unit for Structural Biology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Unit for Structural Biology, Department of Biochemistry and Microbiology, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Department of Pulmonary Medicine, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Hamida Hammad
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.
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26
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Duan Z, Liu M, Yuan L, Du X, Wu M, Yang Y, Wang L, Zhou K, Yang M, Zou Y, Xiang Y, Qu X, Liu H, Qin X, Liu C. Innate lymphoid cells are double-edged swords under the mucosal barrier. J Cell Mol Med 2021; 25:8579-8587. [PMID: 34378306 PMCID: PMC8435454 DOI: 10.1111/jcmm.16856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/20/2021] [Indexed: 11/28/2022] Open
Abstract
As the direct contacting site for pathogens and allergens, the mucosal barrier plays a vital role in the lungs and intestines. Innate lymphoid cells (ILCs) are particularly resident in the mucosal barrier and participate in several pathophysiological processes, such as maintaining or disrupting barrier integrity, preventing various pathogenic invasions. In the pulmonary mucosae, ILCs sometimes aggravate inflammation and mucus hypersecretion but restore airway epithelial integrity and maintain lung tissue homeostasis at other times. In the intestinal mucosae, ILCs can increase epithelial permeability, leading to severe intestinal inflammation on the one hand, and assist mucosal barrier in resisting bacterial invasion on the other hand. In this review, we will illustrate the positive and negative roles of ILCs in mucosal barrier immunity.
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Affiliation(s)
- Zhen Duan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Mandie Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Lin Yuan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xizi Du
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Mengping Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yu Yang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Leyuan Wang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Kai Zhou
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ming Yang
- Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW, Australia
| | - Yizhou Zou
- Department of Immunology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yang Xiang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Chi Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China.,China-Africa Infectious Diseases Research Center, Xiangya School of Medicine, Central South University, Changsha, China
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27
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Perkins TN, Donnell ML, Oury TD. The axis of the receptor for advanced glycation endproducts in asthma and allergic airway disease. Allergy 2021; 76:1350-1366. [PMID: 32976640 DOI: 10.1111/all.14600] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/31/2020] [Accepted: 09/14/2020] [Indexed: 12/11/2022]
Abstract
Asthma is a generalized term that describes a scope of distinct pathologic phenotypes of variable severity, which share a common complication of reversible airflow obstruction. Asthma is estimated to affect almost 400 million people worldwide, and nearly ten percent of asthmatics have what is considered "severe" disease. The majority of moderate to severe asthmatics present with a "type 2-high" (T2-hi) phenotypic signature, which pathologically is driven by the type 2 cytokines Interleukin-(IL)-4, IL-5, and IL-13. However, "type 2-low" (T2-lo) phenotypic signatures are often associated with more severe, steroid-refractory neutrophilic asthma. A wide range of clinical and experimental studies have found that the receptor for advanced glycation endproducts (RAGE) plays a significant role in the pathogenesis of asthma and allergic airway disease (AAD). Current experimental data indicates that RAGE is a critical mediator of the type 2 inflammatory reactions which drive the development of T2-hi AAD. However, clinical studies demonstrate that increased RAGE ligands and signaling strongly correlate with asthma severity, especially in severe neutrophilic asthma. This review presents an overview of the current understandings of RAGE in asthma pathogenesis, its role as a biomarker of disease, and future implications for mechanistic studies, and potential therapeutic intervention strategies.
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Affiliation(s)
- Timothy N. Perkins
- Department of Pathology University of Pittsburgh School of Medicine Pittsburgh PA USA
| | - Mason L. Donnell
- Department of Pathology University of Pittsburgh School of Medicine Pittsburgh PA USA
| | - Tim D. Oury
- Department of Pathology University of Pittsburgh School of Medicine Pittsburgh PA USA
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28
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Chen W, Lai D, Li Y, Wang X, Pan Y, Fang X, Fan J, Shu Q. Neuronal-Activated ILC2s Promote IL-17A Production in Lung γδ T Cells During Sepsis. Front Immunol 2021; 12:670676. [PMID: 33995408 PMCID: PMC8119647 DOI: 10.3389/fimmu.2021.670676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/15/2021] [Indexed: 01/13/2023] Open
Abstract
Background Studies have revealed important roles for IL-17A in the development of acute lung injury (ALI) following sepsis. However, the mechanism underlying the regulation of lung IL-17A remains to be fully addressed. Recent studies suggested the effect of neuromedin U (NMU) on immune cell activation and the role of group 2 innate lymphoid cells (ILC2s) in the modulation of IL-17A production. We aimed to gain in-depth insight into the mechanism underlying sepsis-induced lung IL-17A production, particularly, the role of NMU in mediating neuronal regulation of ILC2s and IL-17A-producing γδ T cells activation in sepsis. Methods Wild type mice were subjected to cecal ligation and puncture (CLP) to induce sepsis with or without intraperitoneal injection of NMU. The levels of ILC2s, γδ T cells, IL-17A, NMU and NMU receptor 1 (NMUR1) in the lung were then measured. In order to determine the role of NMU signaling in ILC2 activation and the role of ILC2-released IL-9 in ILC2-γδ T cell interaction, ILC2s were sorted, and the genes of nmur1 and il9 in the ILC2s were knocked down using CRISPR/Cas9. The genetically manipulated ILC2s were then co-cultured with lung γδ T cells, and the levels of IL-17A from co-culture systems were measured. Results In septic mice, the levels of NMU, IL-17A, ILC2s, and IL-17A-producing γδ T cells in the lung are significantly increased, and the expression of NMUR1 in ILC2s is increased as well. Exogenous NMU further augments these increases. The main source of IL-17A in response to CLP is γδ T cells, and lung nmur1 is specifically expressed in ILC2s. In vitro co-culture of ILC2s and γδ T cells leads to increased number of γδ T cells and higher production of IL-17A from γδ T cells, and these alterations are further augmented by septic treatment and exogenous NMU. Genetic knockdown of nmur1 or il9 in ILC2s attenuated the upregulation of γδ T cells and IL-17A production. Conclusion In sepsis, NMU acting through NMUR1 in lung ILC2s initiates the ILC2 activation, which, in turn, promote IL-17A-producing γδ T cell expansion and secretion of IL-17A. ILC2-derived IL-9 plays an important role in mediating γδ T cell expansion and IL-17A production. This study explores a new mechanism underlying neuronal regulation of innate immunity in sepsis.
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Affiliation(s)
- Weiwei Chen
- Department of Thoracic and Cardiovascular Surgery, National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Dengming Lai
- Department of Thoracic and Cardiovascular Surgery, National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuehua Li
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Research and Development, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, United States
| | - Xueke Wang
- Department of Thoracic and Cardiovascular Surgery, National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yihang Pan
- Department of Thoracic and Cardiovascular Surgery, National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiangming Fang
- Department of Anesthesiology and Intensive Care Unit, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jie Fan
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Research and Development, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, United States.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Qiang Shu
- Department of Thoracic and Cardiovascular Surgery, National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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29
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Rodriguez-Rodriguez N, Gogoi M, McKenzie AN. Group 2 Innate Lymphoid Cells: Team Players in Regulating Asthma. Annu Rev Immunol 2021; 39:167-198. [PMID: 33534604 PMCID: PMC7614118 DOI: 10.1146/annurev-immunol-110119-091711] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Type 2 immunity helps protect the host from infection, but it also plays key roles in tissue homeostasis, metabolism, and repair. Unfortunately, inappropriate type 2 immune reactions may lead to allergy and asthma. Group 2 innate lymphoid cells (ILC2s) in the lungs respond rapidly to local environmental cues, such as the release of epithelium-derived type 2 initiator cytokines/alarmins, producing type 2 effector cytokines such as IL-4, IL-5, and IL-13 in response to tissue damage and infection. ILC2s are associated with the severity of allergic asthma, and experimental models of lung inflammation have shown how they act as playmakers, receiving signals variously from stromal and immune cells as well as the nervous system and then distributing cytokine cues to elicit type 2 immune effector functions and potentiate CD4+ T helper cell activation, both of which characterize the pathology of allergic asthma. Recent breakthroughs identifying stromal- and neuronal-derived microenvironmental cues that regulate ILC2s, along with studies recognizing the potential plasticity of ILC2s, have improved our understanding of the immunoregulation of asthma and opened new avenues for drug discovery.
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Affiliation(s)
- Noe Rodriguez-Rodriguez
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, Cambridgeshire, CB2 0QH. UK
| | - Mayuri Gogoi
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, Cambridgeshire, CB2 0QH. UK
| | - Andrew N.J. McKenzie
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, Cambridgeshire, CB2 0QH. UK,Corresponding author:
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Mathä L, Martinez-Gonzalez I, Steer CA, Takei F. The Fate of Activated Group 2 Innate Lymphoid Cells. Front Immunol 2021; 12:671966. [PMID: 33968080 PMCID: PMC8100346 DOI: 10.3389/fimmu.2021.671966] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/07/2021] [Indexed: 12/20/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) reside in both mucosal and non-mucosal tissues and play critical roles in the first line of defense against parasites and irritants such as allergens. Upon activation by cytokines released from epithelial and stromal cells during tissue damage or stimulation, ILC2s produce copious amounts of IL-5 and IL-13, leading to type 2 inflammation. Over the past 10 years, ILC2 involvement in a variety of human diseases has been unveiled. However, questions remain as to the fate of ILC2s after activation and how that might impact their role in chronic inflammatory diseases such as asthma and fibrosis. Here, we review studies that have revealed novel properties of post-activation ILC2s including the generation of immunological memory, exhausted-like phenotype, transdifferentiation and activation-induced migration.
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Affiliation(s)
- Laura Mathä
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BC, Canada
| | | | - Catherine A Steer
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BC, Canada
| | - Fumio Takei
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
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31
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Hu C, Ma Z, Zhu J, Fan Y, Tuo B, Li T, Liu X. Physiological and pathophysiological roles of acidic mammalian chitinase (CHIA) in multiple organs. Biomed Pharmacother 2021; 138:111465. [PMID: 34311522 DOI: 10.1016/j.biopha.2021.111465] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/27/2021] [Accepted: 03/03/2021] [Indexed: 12/12/2022] Open
Abstract
Acidic mammalian chitinase (CHIA) belongs to the 18-glycosidase family and is expressed in epithelial cells and certain immune cells (such as neutrophils and macrophages) in various organs. Under physiological conditions, as a hydrolase, CHIA can degrade chitin-containing pathogens, participate in Type 2 helper T (Th2)-mediated inflammation, and enhance innate and adaptive immunity to pathogen invasion. Under pathological conditions, such as rhinitis, ocular conjunctivitis, asthma, chronic atrophic gastritis, type 2 diabetes, and pulmonary interstitial fibrosis, CHIA expression is significantly changed. In addition, studies have shown that CHIA has an anti-apoptotic effect, promotes epithelial cell proliferation and maintains organ integrity, and these effects are not related to chitinase degradation. CHIA can also be used as a biomolecular marker in diseases such as chronic atrophic gastritis, dry eye, and acute kidney damage caused by sepsis. Analysis of the authoritative TCGA database shows that CHIA expression in gastric adenocarcinoma, liver cancer, renal clear cell carcinoma and other tumors is significantly downregulated compared with that in normal tissues, but the specific mechanism is unclear. This review is based on all surveys conducted to date and summarizes the expression patterns and functional diversity of CHIA in various organs. Understanding the physiological and pathophysiological relevance of CHIA in multiple organs opens new possibilities for disease treatment.
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Affiliation(s)
- Chunli Hu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province 563003, China
| | - Zhiyuan Ma
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province 563003, China; Department of Thyroid and Breast Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China
| | - Jiaxing Zhu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province 563003, China
| | - Yi Fan
- Endoscopy center, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China
| | - Biguang Tuo
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province 563003, China; Endoscopy center, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China
| | - Taolang Li
- Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province 563003, China; Department of Thyroid and Breast Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China.
| | - Xuemei Liu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province 563003, China; Endoscopy center, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province 563003, China.
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Ihekweazu FD, Engevik MA, Ruan W, Shi Z, Fultz R, Engevik KA, Chang-Graham AL, Freeborn J, Park ES, Venable S, Horvath TD, Haidacher SJ, Haag AM, Goodwin A, Schady DA, Hyser JM, Spinler JK, Liu Y, Versalovic J. Bacteroides ovatus Promotes IL-22 Production and Reduces Trinitrobenzene Sulfonic Acid-Driven Colonic Inflammation. THE AMERICAN JOURNAL OF PATHOLOGY 2021; 191:704-719. [PMID: 33516788 PMCID: PMC8027925 DOI: 10.1016/j.ajpath.2021.01.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/31/2020] [Accepted: 01/06/2021] [Indexed: 02/06/2023]
Abstract
The intestinal microbiota influences the development and function of the mucosal immune system. However, the exact mechanisms by which commensal microbes modulate immunity is not clear. We previously demonstrated that commensal Bacteroides ovatus ATCC 8384 reduces mucosal inflammation. Herein, we aimed to identify immunomodulatory pathways employed by B. ovatus. In germ-free mice, mono-association with B. ovatus shifted the CD11b+/CD11c+ and CD103+/CD11c+ dendritic cell populations. Because indole compounds are known to modulate dendritic cells, B. ovatus cell-free supernatant was screened for tryptophan metabolites by liquid chromatography-tandem mass spectrometry and larger quantities of indole-3-acetic acid were detected. Analysis of cecal and fecal samples from germ-free and B. ovatus mono-associated mice confirmed that B. ovatus could elevate indole-3-acetic acid concentrations in vivo. Indole metabolites have previously been shown to stimulate immune cells to secrete the reparative cytokine IL-22. Addition of B. ovatus cell-free supernatant to immature bone marrow-derived dendritic cells stimulated IL-22 secretion. The ability of IL-22 to drive repair in the intestinal epithelium was confirmed using a physiologically relevant human intestinal enteroid model. Finally, B. ovatus shifted the immune cell populations in trinitrobenzene sulfonic acid-treated mice and up-regulated colonic IL-22 expression, effects that correlated with decreased inflammation. Our data suggest that B. ovatus-produced indole-3-acetic acid promotes IL-22 production by immune cells, yielding beneficial effects on colitis.
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Affiliation(s)
- Faith D Ihekweazu
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas; Section of Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Houston, Texas.
| | - Melinda A Engevik
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Wenly Ruan
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas; Section of Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Houston, Texas
| | - Zhongcheng Shi
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Robert Fultz
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, Texas
| | - Kristen A Engevik
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas
| | | | - Jasmin Freeborn
- Division of Gastroenterology, Department of Pediatrics, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas
| | - Evelyn S Park
- Division of Gastroenterology, Department of Pediatrics, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas
| | - Susan Venable
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Thomas D Horvath
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Sigmund J Haidacher
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Anthony M Haag
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Annie Goodwin
- Department of Pediatrics, The University of Texas Medical Branch at Galveston, Galveston, Texas
| | - Deborah A Schady
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Joseph M Hyser
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas
| | - Jennifer K Spinler
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
| | - Yuying Liu
- Division of Gastroenterology, Department of Pediatrics, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas
| | - James Versalovic
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas; Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Pathology, Texas Children's Hospital, Houston, Texas
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33
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Mi LL, Zhu Y, Lu HY. A crosstalk between type 2 innate lymphoid cells and alternative macrophages in lung development and lung diseases (Review). Mol Med Rep 2021; 23:403. [PMID: 33786611 PMCID: PMC8025469 DOI: 10.3892/mmr.2021.12042] [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: 10/29/2020] [Accepted: 03/08/2021] [Indexed: 12/14/2022] Open
Abstract
Type 2 innate lymphoid cells (ILC2s) are important innate immune cells that are involved in type 2 inflammation, in both mice and humans. ILC2s are stimulated by factors, including interleukin (IL)-33 and IL-25, and activated ILC2s secrete several cytokines that mediate type 2 immunity by inducing profound changes in physiology, including activation of alternative (M2) macrophages. M2 macrophages possess immune modulatory, phagocytic, tissue repair and remodeling properties, and can regulate ILC2s under infection. The present review summarizes the role of ILC2s as innate cells and M2 macrophages as anti-inflammatory cells, and discusses current literature on their important biological significance. The present review also highlights how the crosstalk between ILC2s and M2 macrophages contributes to lung development, induces pulmonary parasitic expulsion, exacerbates pulmonary viral and fungal infections and allergic airway diseases, and promotes the development of lung diseases, such as pulmonary fibrosis, chronic obstructive pulmonary disease and carcinoma of the lungs.
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Affiliation(s)
- Lan-Lan Mi
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Yue Zhu
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Hong-Yan Lu
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
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Tumor-Derived Lactic Acid Contributes to the Paucity of Intratumoral ILC2s. Cell Rep 2021; 30:2743-2757.e5. [PMID: 32101749 DOI: 10.1016/j.celrep.2020.01.103] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 07/18/2019] [Accepted: 01/29/2020] [Indexed: 12/18/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are abundant in non-lymphoid tissues and increase following infectious and inflammatory insults. In solid tumors, however, ILC2s constitute a relatively small proportion of immune cells. Here, we show, using melanoma as a model, that while the IL-33/IL C2/eosinophil axis suppresses tumor growth, tumor-derived lactate attenuates the function and survival of ILC2s. Melanomas with reduced lactate production (LDHAlow) are growth delayed and typified by an increased number of ILC2s compared with control tumors. Upon IL-33 stimulation, ILC2s accompanied by eosinophils more effectively restrain the growth of LDHAlow tumors than control melanomas. Furthermore, database analysis reveals a negative correlation between the expression of LDHA and markers associated with ILC2s and the association of high expression of IL33 and an eosinophil marker SIGLEC8 with better overall survival in human cutaneous melanoma patients. This work demonstrates that the balance between the IL-33/ILC2/eosinophil axis and lactate production by tumor cells regulates melanoma growth.
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35
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Wang X, Wu K, Keeler SP, Mao D, Agapov EV, Zhang Y, Holtzman MJ. TLR3-Activated Monocyte-Derived Dendritic Cells Trigger Progression from Acute Viral Infection to Chronic Disease in the Lung. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 206:1297-1314. [PMID: 33514511 PMCID: PMC7946811 DOI: 10.4049/jimmunol.2000965] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/01/2021] [Indexed: 11/19/2022]
Abstract
Acute infection is implicated as a trigger for chronic inflammatory disease, but the full basis for this switch is uncertain. In this study, we examine this issue using a mouse model of chronic lung disease that develops after respiratory infection with a natural pathogen (Sendai virus). We investigate this model using a combination of TLR3-deficient mice and adoptive transfer of immune cells into these mice versus the comparable responses in wild-type mice. We found that acute and transient expression of TLR3 on monocyte-derived dendritic cells (moDCs) was selectively required to induce long-term expression of IL-33 and consequent type 2 immune-driven lung disease. Unexpectedly, moDC participation was not based on canonical TLR3 signaling and relied instead on a trophic effect to expand the alveolar epithelial type 2 cell population beyond repair of tissue injury and thereby provide an enriched and persistent cell source of IL-33 required for progression to a disease phenotype that includes lung inflammation, hyperreactivity, excess mucus production, and remodeling. The findings thereby provide a framework wherein viral infection activates TLR3 in moDCs as a front-line immune cell niche upstream of lung epithelial cells to drive the type 2 immune response, leading to chronic inflammatory diseases of the lung (such as asthma and chronic obstructive pulmonary disease in humans) and perhaps progressive and long-term postviral disease in general.
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Affiliation(s)
- Xinyu Wang
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Kangyun Wu
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Shamus P Keeler
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Dailing Mao
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Eugene V Agapov
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Yong Zhang
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Michael J Holtzman
- Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
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36
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León B, Ballesteros-Tato A. Modulating Th2 Cell Immunity for the Treatment of Asthma. Front Immunol 2021; 12:637948. [PMID: 33643321 PMCID: PMC7902894 DOI: 10.3389/fimmu.2021.637948] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/21/2021] [Indexed: 12/14/2022] Open
Abstract
It is estimated that more than 339 million people worldwide suffer from asthma. The leading cause of asthma development is the breakdown of immune tolerance to inhaled allergens, prompting the immune system's aberrant activation. During the early phase, also known as the sensitization phase, allergen-specific T cells are activated and become central players in orchestrating the subsequent development of allergic asthma following secondary exposure to the same allergens. It is well-established that allergen-specific T helper 2 (Th2) cells play central roles in developing allergic asthma. As such, 80% of children and 60% of adult asthma cases are linked to an unwarranted Th2 cell response against respiratory allergens. Thus, targeting essential components of Th2-type inflammation using neutralizing antibodies against key Th2 modulators has recently become an attractive option for asthmatic patients with moderate to severe symptoms. In addition to directly targeting Th2 mediators, allergen immunotherapy, also known as desensitization, is focused on redirecting the allergen-specific T cells response from a Th2-type profile to a tolerogenic one. This review highlights the current understanding of the heterogeneity of the Th2 cell compartment, their contribution to allergen-induced airway inflammation, and the therapies targeting the Th2 cell pathway in asthma. Further, we discuss available new leads for successful targeting pulmonary Th2 cell responses for future therapeutics.
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Affiliation(s)
- Beatriz León
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Andre Ballesteros-Tato
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
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37
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Malinczak CA, Parolia A, Fonseca W, Morris S, Rasky AJ, Bawa P, Zhang Y, Mire MM, Ziegler SF, Ptaschinski C, Chinnaiyan AM, Lukacs NW. TSLP-Driven Chromatin Remodeling and Trained Systemic Immunity after Neonatal Respiratory Viral Infection. THE JOURNAL OF IMMUNOLOGY 2021; 206:1315-1328. [PMID: 33514510 DOI: 10.4049/jimmunol.2001205] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 01/04/2021] [Indexed: 12/26/2022]
Abstract
Our studies have previously shown a role for persistent TSLP production in the lungs of mice after early-life respiratory syncytial virus (RSV) infection that leads to an altered immune phenotype, including accumulation of "inflammatory" dendritic cells (DC). This study investigates the role of TSLP driving systemic trained immunity in DC in early-life RSV-infected mice. Bone marrow-derived DCs (BMDC) from early-life RSV-infected mice at 4 wk postinfection showed enhanced expression of costimulatory molecules and cytokines, including Tslp, that regulate immune cell function. The adoptive transfer of BMDC grown from early-life RSV-infected mice was sufficient to exacerbate allergic disease development. The addition of recombinant TSLP during differentiation of BMDC from naive mice induced a similar altered phenotype as BMDC grown from early-life RSV-infected mice, suggesting a role for TSLP in the phenotypic changes. To assess the role of TSLP in these changes, global transcriptomic characterization of TSLPR-/- BMDC infected with RSV was performed and showed a higher upregulation of type 1 IFN genes and concomitant downregulation of inflammatory genes. Assay for transposase-accessible chromatin using sequencing analysis demonstrated that TSLPR-/- BMDC had a parallel gain in physical chromatin accessibility near type 1 genes and loss in accessibility near genes related to RSV pathology, with IFN regulatory factor 4 (IRF4) and STAT3 predicted as top transcription factors binding within differentially accessible regions in wild-type. Importantly, these studies show that in the absence of TSLP signaling, BMDC are able to mount an appropriate type 1 IFN-associated antiviral response to RSV. In summary, RSV-induced TSLP alters chromatin structure in DC to drive trained innate immunity and activates pathogenic gene programs in mice.
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Affiliation(s)
| | - Abhijit Parolia
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Wendy Fonseca
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Susan Morris
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Andrew J Rasky
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Pushpinder Bawa
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Yuping Zhang
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Mohamed M Mire
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - Steven F Ziegler
- Department of Immunology, Benaroya Research Institute, Seattle, WA 98101
| | - Catherine Ptaschinski
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109.,Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, MI 48109
| | - Arul M Chinnaiyan
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109.,Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109; and.,Howard Hughes Medical Institute, University of Michigan, Ann Arbor, MI 48109
| | - Nicholas W Lukacs
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109.,Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, MI 48109
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38
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Buchele V, Konein P, Vogler T, Kunert T, Enderle K, Khan H, Büttner-Herold M, Lehmann CHK, Amon L, Wirtz S, Dudziak D, Neurath MF, Neufert C, Hildner K. Th17 Cell-Mediated Colitis Is Positively Regulated by Interferon Regulatory Factor 4 in a T Cell- Extrinsic Manner. Front Immunol 2021; 11:590893. [PMID: 33584655 PMCID: PMC7879684 DOI: 10.3389/fimmu.2020.590893] [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: 08/03/2020] [Accepted: 12/08/2020] [Indexed: 01/14/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) are characterized by chronic, inflammatory gastrointestinal lesions and often require life-long treatment with immunosuppressants and repetitive surgical interventions. Despite progress in respect to the characterization of molecular mechanisms e.g. exerted by TNF-alpha, currently clinically approved therapeutics fail to provide long-term disease control for most patients. The transcription factor interferon regulatory factor 4 (IRF4) has been shown to play important developmental as well as functional roles within multiple immune cells. In the context of colitis, a T cell-intrinsic role of IRF4 in driving immune-mediated gut pathology is established. Here, we conversely addressed the impact of IRF4 inactivation in non-T cells on T cell driven colitis in vivo. Employing the CD4+CD25- naïve T cell transfer model, we found that T cells fail to elicit colitis in IRF4-deficient compared to IRF4-proficient Rag1-/- mice. Reduced colitis activity in the absence of IRF4 was accompanied by hampered T cell expansion both within the mesenteric lymph node (MLN) and colonic lamina propria (cLP). Furthermore, the influx of various myeloids, presumably inflammation-promoting cells was abrogated overall leading to a less disrupted intestinal barrier. Mechanistically, gene profiling experiments revealed a Th17 response dominated molecular expression signature in colon tissues of IRF4-proficient, colitic Rag1-/- but not in colitis-protected Rag1-/-Irf4-/- mice. Colitis mitigation in Rag1-/-Irf4-/- T cell recipients resulted in reduced frequencies and absolute numbers of IL-17a-producing T cell subsets in MLN and cLP possibly due to a regulation of conventional dendritic cell subset 2 (cDC2) known to impact Th17 differentiation. Together, extending the T cell-intrinsic role for IRF4 in the context of Th17 cell driven colitis, the provided data demonstrate a Th17-inducing and thereby colitis-promoting role of IRF4 through a T cell-extrinsic mechanism highlighting IRF4 as a putative molecular master switch among transcriptional regulators driving immune-mediated intestinal inflammation through both T cell-intrinsic and T cell-extrinsic mechanisms. Future studies need to further dissect IRF4 controlled pathways within distinct IRF4-expressing myeloid cell types, especially cDC2s, to elucidate the precise mechanisms accounting for hampered Th17 formation and, according to our data, the predominant mechanism of colitis protection in Rag1-/-Irf4-/- T cell receiving mice.
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Affiliation(s)
- Vera Buchele
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Patrick Konein
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Tina Vogler
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Timo Kunert
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Karin Enderle
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Hanif Khan
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Maike Büttner-Herold
- Institute of Pathology, Department of Nephropathology, University Hospital Erlangen, Erlangen, Germany
| | - Christian H. K. Lehmann
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Lukas Amon
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Wirtz
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Diana Dudziak
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Markus F. Neurath
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Clemens Neufert
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Kai Hildner
- Department of Medicine 1, University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, University of Erlangen-Nuremberg, Erlangen, Germany
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39
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Psaila AM, Vohralik EJ, Quinlan KGR. Shades of white: new insights into tissue-resident leukocyte heterogeneity. FEBS J 2021; 289:308-318. [PMID: 33513286 DOI: 10.1111/febs.15737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/20/2021] [Accepted: 01/27/2021] [Indexed: 12/13/2022]
Abstract
Populations of white blood cells (leukocytes) have been found in tissues and organs across the body, in states of both health and disease. The role leukocytes play within these tissues is often highly contested. For many leukocytes, there are studies outlining pro-inflammatory destructive functions, while other studies provide clear evidence of anti-inflammatory homeostatic activities of leukocytes within the same tissue. We discuss how this functional dissonance can be explained by leukocyte heterogeneity. Although cell morphology and surface receptor profiles are excellent methods to segregate cell types, the true degree of leukocyte heterogeneity that exists can only be appreciated by studying the variable and dynamic gene expression profile. Unbiased single-cell RNA sequencing profiling of tissue-resident leukocytes is transforming the way we understand leukocytes across health and disease. Recent investigations into adipose tissue-resident leukocytes have revealed unprecedented levels of heterogeneity among populations of macrophages. We use this example to pose emerging questions regarding tissue-resident leukocytes and review what is currently known (and unknown) about the diversity of tissue-resident leukocytes within different organs.
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Affiliation(s)
- Annalise M Psaila
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, NSW, Australia
| | - Emily J Vohralik
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, NSW, Australia
| | - Kate G R Quinlan
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, NSW, Australia
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40
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Surace L, Doisne JM, Croft CA, Thaller A, Escoll P, Marie S, Petrosemoli N, Guillemot V, Dardalhon V, Topazio D, Cama A, Buchrieser C, Taylor N, Amit I, Musumeci O, Di Santo JP. Dichotomous metabolic networks govern human ILC2 proliferation and function. Nat Immunol 2021; 22:1367-1374. [PMID: 34686862 PMCID: PMC8553616 DOI: 10.1038/s41590-021-01043-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 09/09/2021] [Indexed: 01/20/2023]
Abstract
Group 2 innate lymphoid cells (ILC2s) represent innate homologs of type 2 helper T cells (TH2) that participate in immune defense and tissue homeostasis through production of type 2 cytokines. While T lymphocytes metabolically adapt to microenvironmental changes, knowledge of human ILC2 metabolism is limited, and its key regulators are unknown. Here, we show that circulating 'naive' ILC2s have an unexpected metabolic profile with a higher level of oxidative phosphorylation (OXPHOS) than natural killer (NK) cells. Accordingly, ILC2s are severely reduced in individuals with mitochondrial disease (MD) and impaired OXPHOS. Metabolomic and nutrient receptor analysis revealed ILC2 uptake of amino acids to sustain OXPHOS at steady state. Following activation with interleukin-33 (IL-33), ILC2s became highly proliferative, relying on glycolysis and mammalian target of rapamycin (mTOR) to produce IL-13 while continuing to fuel OXPHOS with amino acids to maintain cellular fitness and proliferation. Our results suggest that proliferation and function are metabolically uncoupled in human ILC2s, offering new strategies to target ILC2s in disease settings.
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Affiliation(s)
- Laura Surace
- grid.428999.70000 0001 2353 6535Innate Immunity Unit, Institut Pasteur, Inserm U1223, Paris, France
| | - Jean-Marc Doisne
- grid.428999.70000 0001 2353 6535Innate Immunity Unit, Institut Pasteur, Inserm U1223, Paris, France
| | - Carys A. Croft
- grid.428999.70000 0001 2353 6535Innate Immunity Unit, Institut Pasteur, Inserm U1223, Paris, France ,grid.508487.60000 0004 7885 7602Université de Paris, Sorbonne Paris Cité, Paris, France
| | - Anna Thaller
- grid.428999.70000 0001 2353 6535Innate Immunity Unit, Institut Pasteur, Inserm U1223, Paris, France ,grid.508487.60000 0004 7885 7602Université de Paris, Sorbonne Paris Cité, Paris, France
| | - Pedro Escoll
- grid.428999.70000 0001 2353 6535Biology of Intracellular Bacteria Unit, Institut Pasteur, CNRS UMR 3525, Paris, France
| | - Solenne Marie
- grid.428999.70000 0001 2353 6535Innate Immunity Unit, Institut Pasteur, Inserm U1223, Paris, France
| | - Natalia Petrosemoli
- grid.428999.70000 0001 2353 6535Bioinformatics and Biostatistics Hub, Center of Bioinformatics, Biostatistics, and Integrative Biology, Institut Pasteur, Paris, France
| | - Vincent Guillemot
- grid.428999.70000 0001 2353 6535Bioinformatics and Biostatistics Hub, Center of Bioinformatics, Biostatistics, and Integrative Biology, Institut Pasteur, Paris, France
| | - Valerie Dardalhon
- grid.121334.60000 0001 2097 0141Institut de Génétique Moléculaire de Montpellier, University of Montpellier, CNRS, Montpellier, France
| | - Davide Topazio
- Department of Otolaryngology, Hospital ‘Mazzini’, Teramo, Italy
| | - Antonia Cama
- Department of Maxillofacial and Otolaryngology, Hospital ‘F. Renzetti’, Lanciano, Italy
| | - Carmen Buchrieser
- grid.428999.70000 0001 2353 6535Biology of Intracellular Bacteria Unit, Institut Pasteur, CNRS UMR 3525, Paris, France
| | - Naomi Taylor
- grid.121334.60000 0001 2097 0141Institut de Génétique Moléculaire de Montpellier, University of Montpellier, CNRS, Montpellier, France
| | - Ido Amit
- grid.13992.300000 0004 0604 7563Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Olimpia Musumeci
- grid.10438.3e0000 0001 2178 8421Unit of Neurology and Neuromuscular Disorders, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - James P. Di Santo
- grid.428999.70000 0001 2353 6535Innate Immunity Unit, Institut Pasteur, Inserm U1223, Paris, France
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41
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IL-33 facilitates rapid expulsion of the parasitic nematode Strongyloides ratti from the intestine via ILC2- and IL-9-driven mast cell activation. PLoS Pathog 2020; 16:e1009121. [PMID: 33351862 PMCID: PMC7787685 DOI: 10.1371/journal.ppat.1009121] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 01/06/2021] [Accepted: 11/02/2020] [Indexed: 02/06/2023] Open
Abstract
Parasitic helminths are sensed by the immune system via tissue-derived alarmins that promote the initiation of the appropriate type 2 immune responses. Here we establish the nuclear alarmin cytokine IL-33 as a non-redundant trigger of specifically IL-9-driven and mast cell-mediated immunity to the intestinal parasite Strongyloides ratti. Blockade of endogenous IL-33 using a helminth-derived IL-33 inhibitor elevated intestinal parasite burdens in the context of reduced mast cell activation while stabilization of endogenous IL-33 or application of recombinant IL-33 reciprocally reduced intestinal parasite burdens and increased mast cell activation. Using gene-deficient mice, we show that application of IL-33 triggered rapid mast cell-mediated expulsion of parasites directly in the intestine, independent of the adaptive immune system, basophils, eosinophils or Gr-1+ cells but dependent on functional IL-9 receptor and innate lymphoid cells (ILC). Thereby we connect the described axis of IL-33-mediated ILC2 expansion to the rapid initiation of IL-9-mediated and mast cell-driven intestinal anti-helminth immunity.
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42
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Zizzo G, Cohen PL. Imperfect storm: is interleukin-33 the Achilles heel of COVID-19? THE LANCET. RHEUMATOLOGY 2020; 2:e779-e790. [PMID: 33073244 PMCID: PMC7546716 DOI: 10.1016/s2665-9913(20)30340-4] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The unique cytokine signature of COVID-19 might provide clues to disease mechanisms and possible future therapies. Here, we propose a pathogenic model in which the alarmin cytokine, interleukin (IL)-33, is a key player in driving all stages of COVID-19 disease (ie, asymptomatic, mild-moderate, severe-critical, and chronic-fibrotic). In susceptible individuals, IL-33 release by damaged lower respiratory cells might induce dysregulated GATA-binding factor 3-expressing regulatory T cells, thereby breaking immune tolerance and eliciting severe acute respiratory syndrome coronavirus 2-induced autoinflammatory lung disease. Such disease might be initially sustained by IL-33-differentiated type-2 innate lymphoid cells and locally expanded γδ T cells. In severe COVID-19 cases, the IL-33-ST2 axis might act to expand the number of pathogenic granulocyte-macrophage colony-stimulating factor-expressing T cells, dampen antiviral interferon responses, elicit hyperinflammation, and favour thromboses. In patients who survive severe COVID-19, IL-33 might drive pulmonary fibrosis by inducing myofibroblasts and epithelial-mesenchymal transition. We discuss the therapeutic implications of these hypothetical pathways, including use of therapies that target IL-33 (eg, anti-ST2), T helper 17-like γδ T cells, immune cell homing, and cytokine balance.
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Affiliation(s)
- Gaetano Zizzo
- Temple Autoimmunity Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Unit of Rheumatology, Department of Internal Medicine, ASST Ovest Milanese, Milan, Italy
| | - Philip L Cohen
- Temple Autoimmunity Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Section of Rheumatology, Department of Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
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43
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Do-Thi VA, Lee JO, Lee H, Kim YS. Crosstalk between the Producers and Immune Targets of IL-9. Immune Netw 2020; 20:e45. [PMID: 33425430 PMCID: PMC7779872 DOI: 10.4110/in.2020.20.e45] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Accepted: 10/29/2020] [Indexed: 12/18/2022] Open
Abstract
IL-9 has been reported to play dual roles in the pathogenesis of autoimmune disorders and cancers. The collaboration of IL-9 with microenvironmental factors including the broader cytokine milieu and other cellular components may provide important keys to explain its conflicting effects in chronic conditions. In this review, we summarize recent findings on the cellular sources of, and immunological responders to IL-9, in order to interpret the role of IL-9 in the regulation of immune responses. This knowledge will provide new perspectives to improve clinical benefits and limit adverse effects of IL-9 when treating pathologic conditions.
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Affiliation(s)
- Van Anh Do-Thi
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Jie-Oh Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Hayyoung Lee
- Institute of Biotechnology, Chungnam National University, Daejeon 34134, Korea
| | - Young Sang Kim
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 34134, Korea
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44
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Apraiz A, Benedicto A, Marquez J, Agüera-Lorente A, Asumendi A, Olaso E, Arteta B. Innate Lymphoid Cells in the Malignant Melanoma Microenvironment. Cancers (Basel) 2020; 12:cancers12113177. [PMID: 33138017 PMCID: PMC7692065 DOI: 10.3390/cancers12113177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022] Open
Abstract
Simple Summary Innate lymphoid cells (ILCs) are the innate counterparts of adaptive immune cells. Emerging data indicate that they are also key players in the progression of multiple tumors. In this review we briefly describe ILCs’ functions in the skin, lungs and liver. Next, we analyze the role of ILCs in primary cutaneous melanoma and in its most frequent and deadly metastases, those in liver and lung. We focus on their dual anti– and pro-tumoral functions, depending on the cross-interactions among them and with the surrounding stromal cells that form the tumor microenvironment (TME) in each organ. Next, we detail the role of extracellular vesicles secreted to the TME by ILCs and melanoma on both cell populations. We conclude that the identification of markers and tools to allow the modulation of individual ILC subsets, in addition to the development of standardized protocols, is essential for addressing the therapeutic modulation of ILCs. Abstract The role of innate lymphoid cells (ILCs) in cancer progression has been uncovered in recent years. ILCs are classified as Type 1, Type 2, and Type 3 ILCs, which are characterized by the transcription factors necessary for their development and the cytokines and chemokines they produce. ILCs are a highly heterogeneous cell population, showing both anti– and protumoral properties and capable of adapting their phenotypes and functions depending on the signals they receive from their surrounding environment. ILCs are considered the innate counterparts of the adaptive immune cells during physiological and pathological processes, including cancer, and as such, ILC subsets reflect different types of T cells. In cancer, each ILC subset plays a crucial role, not only in innate immunity but also as regulators of the tumor microenvironment. ILCs’ interplay with other immune and stromal cells in the metastatic microenvironment further dictates and influences this dichotomy, further strengthening the seed-and-soil theory and supporting the formation of more suitable and organ-specific metastatic environments. Here, we review the present knowledge on the different ILC subsets, focusing on their interplay with components of the tumor environment during the development of primary melanoma as well as on metastatic progression to organs, such as the liver or lung.
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45
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Miller MM, Patel PS, Bao K, Danhorn T, O'Connor BP, Reinhardt RL. BATF acts as an essential regulator of IL-25-responsive migratory ILC2 cell fate and function. Sci Immunol 2020; 5:5/43/eaay3994. [PMID: 31924686 DOI: 10.1126/sciimmunol.aay3994] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022]
Abstract
A transitory, interleukin-25 (IL-25)-responsive, group 2 innate lymphoid cell (ILC2) subset induced during type 2 inflammation was recently identified as iILC2s. This study focuses on understanding the significance of this population in relation to tissue-resident nILC2s in the lung and intestine. RNA-sequencing and pathway analysis revealed the AP-1 superfamily transcription factor BATF (basic leucine zipper transcription factor, activating transcription factor-like) as a potential modulator of ILC2 cell fate. Infection of BATF-deficient mice with Nippostrongylus brasiliensis showed a selective defect in IL-25-mediated helminth clearance and a corresponding loss of iILC2s in the lung characterized as IL-17RBhigh, KLRG1high, BATFhigh, and Arg1low BATF deficiency selectively impaired iILC2s because it had no impact on tissue-resident nILC2 frequency or function. Pulmonary-associated iILC2s migrated to the lung after infection, where they represented an early source of IL-4 and IL-13. Although the composition of ILC2s in the small intestine was distinct from those in the lung, their frequency and IL-13 expression remained dependent on BATF, which was also required for optimal goblet and tuft cell hyperplasia. Findings support IL-25-responsive ILC2s as early sentinels of mucosal barrier integrity.
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Affiliation(s)
- Mindy M Miller
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206, USA.
| | - Preeyam S Patel
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206, USA
| | - Katherine Bao
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Thomas Danhorn
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO 80206, USA
| | - Brian P O'Connor
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO 80206, USA.,Department of Pediatrics, National Jewish Health, 1400 Jackson Street, Denver, CO 80206, USA.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - R Lee Reinhardt
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206, USA. .,Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
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46
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Wu K, Wang X, Keeler SP, Gerovac BJ, Agapov EV, Byers DE, Gilfillan S, Colonna M, Zhang Y, Holtzman MJ. Group 2 Innate Lymphoid Cells Must Partner with the Myeloid-Macrophage Lineage for Long-Term Postviral Lung Disease. THE JOURNAL OF IMMUNOLOGY 2020; 205:1084-1101. [PMID: 32641386 DOI: 10.4049/jimmunol.2000181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/05/2020] [Indexed: 12/16/2022]
Abstract
Group 2 innate lymphoid cells (ILC2s) are implicated in host defense and inflammatory disease, but these potential functional roles need more precise definition, particularly using advanced technologies to better target ILC2s and engaging experimental models that better manifest both acute infection and chronic, even lifelong, disease. In this study, we use a mouse model that applies an improved genetic definition of ILC2s via IL-7r-conditional Rora gene targeting and takes advantage of a distinct progression from acute illness to chronic disease, based on a persistent type 2 immune response to respiratory infection with a natural pathogen (Sendai virus). We first show that ILC2s are activated but are not required to handle acute illness after respiratory viral infection. In contrast, we find that this type of infection also activates ILC2s chronically for IL-13 production and consequent asthma-like disease traits that peak and last long after active viral infection is cleared. However, to manifest this type of disease, the Csf1-dependent myeloid-macrophage lineage is also active at two levels: first, at a downstream level, this lineage provides lung tissue macrophages (interstitial macrophages and tissue monocytes) that represent a major site of Il13 gene expression in the diseased lung; and second, at an upstream level, this same lineage is required for Il33 gene induction that is necessary to activate ILC2s for participation in disease at all, including IL-13 production. Together, these findings provide a revised scheme for understanding and controlling the innate immune response leading to long-term postviral lung diseases with features of asthma and related progressive conditions.
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Affiliation(s)
- Kangyun Wu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Xinyu Wang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Shamus P Keeler
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Benjamin J Gerovac
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Eugene V Agapov
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Derek E Byers
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Yong Zhang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Michael J Holtzman
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; .,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110
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47
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Abstract
Although, as the major organ of gas exchange, the lung is considered a nonlymphoid organ, an interconnected network of lung-resident innate cells, including epithelial cells, dendritic cells, macrophages, and natural killer cells is crucial for its protection. These cells provide defense against a daily assault by airborne bacteria, viruses, and fungi, as well as prevent the development of cancer, allergy, and the outgrowth of commensals. Our understanding of this innate immune environment has recently changed with the discovery of a family of innate lymphoid cells (ILCs): ILC1s, ILC2s, and ILC3s. All lack adaptive antigen receptors but can provide a substantial and rapid source of IFN-γ, IL-5 and IL-13, and IL-17A or IL-22, respectively. Their ability to afford immediate protection to the lung and to influence subsequent adaptive immune responses highlights the importance of understanding ILC-regulated immunity for the design of future therapeutic interventions.
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Affiliation(s)
- Jillian L Barlow
- Medical Research Council, Laboratory of Molecular Biology, Cambridge University, Cambridgeshire CB2 0QH, United Kingdom;
| | - Andrew N J McKenzie
- Medical Research Council, Laboratory of Molecular Biology, Cambridge University, Cambridgeshire CB2 0QH, United Kingdom;
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48
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Schulz-Kuhnt A, Wirtz S, Neurath MF, Atreya I. Regulation of Human Innate Lymphoid Cells in the Context of Mucosal Inflammation. Front Immunol 2020; 11:1062. [PMID: 32655549 PMCID: PMC7324478 DOI: 10.3389/fimmu.2020.01062] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/04/2020] [Indexed: 12/13/2022] Open
Abstract
Since their identification as a unique cell population, innate lymphoid cells (ILCs) have revolutionized our understanding of immune responses, leaving their impact on multiple inflammatory and fibrotic pathologies without doubt. Thus, a tightly controlled regulation of local ILC numbers and their activity is of crucial importance. Even though this has been extensively studied in murine ILCs in the last few years, our knowledge of human ILCs is still lagging behind. Our review article will therefore summarize recent insights into the function of human ILCs and will particularly focus on their regulation under inflammatory conditions. The quality and intensity of ILC involvement into local immune responses at mucosal sites of the human body can potentially be modulated via three different axes: (1) activation of tissue-resident mature ILCs, (2) plasticity and local transdifferentiation of specific ILC subsets, and (3) tissue migration and accumulation of peripheral ILCs. Despite a still ongoing scientific effort in this field, already existing data on the fate of human ILCs under different pathologic conditions clearly indicate that all three of these mechanisms are of relevance for the clinical course of chronic inflammatory and autoimmune diseases and might likewise provide new target structures for future therapeutic strategies.
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Affiliation(s)
| | | | | | - Imke Atreya
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
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49
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Verma R, Er JZ, Pu RW, Sheik Mohamed J, Soo RA, Muthiah HM, Tam JKC, Ding JL. Eomes Expression Defines Group 1 Innate Lymphoid Cells During Metastasis in Human and Mouse. Front Immunol 2020; 11:1190. [PMID: 32625207 PMCID: PMC7311635 DOI: 10.3389/fimmu.2020.01190] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
Recent studies have attempted to uncover the role of Group 1 Innate lymphoid cells (ILCs) in multiple physiological contexts, including cancer. However, the definition and precise contribution of Group 1 ILCs (constituting ILC1 and NK subsets) to metastasis is unclear due to the lack of well-defined cell markers. Here, we first identified ILC1 and NK cells in NSCLC patient blood and differentiated them based on the expression of transcription factors, T-bet and Eomes. Interestingly, Eomes downregulation in the peripheral blood NK cells of NSCLC patients positively correlated with disease progression. Additionally, we noted higher Eomes expression in NK cells (T-bet+Eomeshi) compared to ILC1s (T-bet+Eomeslo). We asked whether the decrease in Eomes was associated with the conversion of NK cells into ILC1 using Eomes as a reliable marker to differentiate ILC1s from NK cells. Utilizing a murine model of experimental metastasis, we observed an association between increase in metastasis and Eomes downregulation in NKp46+NK1.1+ Group 1 ILCs, which was consistent to that of human NSCLC samples. Further confirmation of this trend was achieved by flow cytometry, which identified tissue-specific Eomeslo ILC1-like and Eomeshi NK-like subsets in the murine metastatic lung based on cell surface markers and adoptive transfer experiments. Next, functional characterization of these cell subsets showed reduced cytotoxicity and IFNγ production in Eomeslo ILC1s compared to Eomeshi cells, suggesting that lower Eomes levels are associated with poor cancer immunosurveillance by Group 1 ILCs. These findings provide novel insights into the regulation of Group 1 ILC subsets during metastasis, through the use of Eomes as a reliable marker to differentiate between NK and ILC1s.
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Affiliation(s)
- Riva Verma
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Jun Zhi Er
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Ren Wei Pu
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Jameelah Sheik Mohamed
- Division of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ross A Soo
- Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Harish Mithiran Muthiah
- Division of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - John Kit Chung Tam
- Division of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiac, Thoracic and Vascular Surgery, Singapore, Singapore
| | - Jeak Ling Ding
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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50
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Kharwadkar R, Ulrich BJ, Abdul Qayum A, Koh B, Licona-Limón P, Flavell RA, Kaplan MH. Expression Efficiency of Multiple Il9 Reporter Alleles Is Determined by Cell Lineage. Immunohorizons 2020; 4:282-291. [PMID: 32439753 DOI: 10.4049/immunohorizons.1900082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 05/07/2020] [Indexed: 11/19/2022] Open
Abstract
Generation of allelic gene reporter mice has provided a powerful tool to study gene function in vivo. In conjunction with imaging technologies, reporter mouse models facilitate studies of cell lineage tracing, live cell imaging, and gene expression in the context of diseases. Although there are several advantages to using reporter mice, caution is important to ensure the fidelity of the reporter protein representing the gene of interest. In this study, we compared the efficiency of two Il9 reporter strains Il9citrine and Il9GFP in representing IL-9-producing CD4+ TH9 cells. Although both alleles show high specificity in IL-9-expressing populations, we observed that the Il9GFP allele visualized a much larger proportion of the IL-9-producing cells in culture than the Il9citrine reporter allele. In defining the mechanistic basis for these differences, chromatin immunoprecipitation and chromatin accessibility assay showed that the Il9citrine allele was transcriptionally less active in TH9 cells compared with the wild-type allele. The Il9citrine allele also only captured a fraction of IL-9-expressing bone marrow-derived mast cells. In contrast, the Il9 citrine reporter detected Il9 expression in type 2 innate lymphoid cells at a greater percentage than could be identified by IL-9 intracellular cytokine staining. Taken together, our findings demonstrate that the accuracy of IL-9 reporter mouse models may vary with the cell type being examined. These studies demonstrate the importance of choosing appropriate reporter mouse models that are optimal for detecting the cell type of interest as well as the accuracy of conclusions.
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Affiliation(s)
- Rakshin Kharwadkar
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Benjamin J Ulrich
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202.,Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Amina Abdul Qayum
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Byunghee Koh
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202.,Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Paula Licona-Limón
- Departamento de Biologia Celular y del Desarrollo, Instituto de Fisiologia Celular, Universidad Nacional Autónoma de México, 04020 Mexico City, Mexico; and
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510
| | - Mark H Kaplan
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202; .,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202.,Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
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