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Han P, Tang J, Xu X, Meng P, Wu K, Sun B, Song X. Identification of the grass carp interleukin-23 receptor and its proinflammatory role in intestinal inflammation. Int J Biol Macromol 2024; 265:130946. [PMID: 38521334 DOI: 10.1016/j.ijbiomac.2024.130946] [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: 01/31/2024] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
The interleukin 23 receptor (IL-23R) is associated with a variety of inflammatory diseases in humans and other mammals. However, whether IL-23R is involved in inflammatory diseases in teleost fish is less understood. Thus, to investigate the potential involvement of IL-23R in fish inflammatory diseases, the full-length cDNA of IL-23R from grass carp Ctenopharyngodon idella was cloned and used to generate a recombinant protein (rgcIL-23R) containing the extracellular domain of IL-23R, against which a polyclonal antibody (rgcIL-23R pAb) was then developed. qPCR analysis revealed that IL-23R mRNA was significantly upregulated in most grass carp tissues in response to infection with Gram-negative Aeromonas hydrophila. Treatment with rgcIL-23R significantly induced IL-17A/F1 expression in C. idella kidney (CIK) cells. By contrast, knockdown of IL-23R caused significant decreases in IL-23R, STAT3, and IL-17N expression in CIK cells after lipopolysaccharide (LPS) stimulation. Similarly, rgcIL-23R pAb treatment effectively inhibited the LPS-induced increase in the expression of IL-23 subunit genes and those of the IL-23/IL-17 pathway in CIK cells. Furthermore, intestinal symptoms identical to those caused by A. hydrophila were induced by anal intubation with rgcIL-23R, but suppressed by rgcIL-23R pAb. Therefore, these results suggest that IL-23R has a crucial role in the regulation of intestinal inflammation and, thus, is a promising target for controlling inflammatory diseases in farmed fish.
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Affiliation(s)
- Panpan Han
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Jian Tang
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Xufang Xu
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Pengkun Meng
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Kang Wu
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Bingyao Sun
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China.
| | - Xuehong Song
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China.
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2
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Xu C, Li S, Fulford TS, Christo SN, Mackay LK, Gray DH, Uldrich AP, Pellicci DG, I Godfrey D, Koay HF. Expansion of MAIT cells in the combined absence of NKT and γδ-T cells. Mucosal Immunol 2023; 16:446-461. [PMID: 37182737 DOI: 10.1016/j.mucimm.2023.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
Mucosal-associated invariant T (MAIT) cells, natural killer T (NKT) cells, and γδT cells are collectively referred to as 'unconventional T cells' due to their recognition of non-peptide antigens and restriction to MHC-I-like molecules. However, the factors controlling their widely variable frequencies between individuals and organs are poorly understood. We demonstrated that MAIT cells are increased in NKT or γδT cell-deficient mice and highly expand in mice lacking both cell types. TCRα repertoire analysis of γδT cell-deficient thymocytes revealed altered Trav segment usage relative to wild-type thymocytes, highlighting retention of the Tcra-Tcrd locus from the 129 mouse strain used to generate Tcrd-/- mice. This resulted in a moderate increase in distal Trav segment usage, including Trav1, potentially contributing to increased generation of Trav1-Traj33+ MAIT cells in the Tcrd-/- thymus. Importantly, adoptively transferred MAIT cells underwent increased homeostatic proliferation within NKT/gdT cell-deficient tissues, with MAIT cell subsets exhibiting tissue-specific homing patterns. Our data reveal a shared niche for unconventional T cells, where competition for common factors may be exploited to collectively modulate these cells in the immune response. Lastly, our findings emphasise careful assessment of studies using NKT or γδT cell-deficient mice when investigating the role of unconventional T cells in disease.
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Affiliation(s)
- Calvin Xu
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Shihan Li
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Thomas S Fulford
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Daniel Hd Gray
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Adam P Uldrich
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Daniel G Pellicci
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia; Murdoch Children's Research Institute, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Parkville, Australia.
| | - Dale I Godfrey
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia.
| | - Hui-Fern Koay
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia.
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3
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Overcast GR, Meibers HE, Eshleman EM, Saha I, Waggoner L, Patel KN, Jain VG, Haslam DB, Alenghat T, VanDussen KL, Pasare C. IEC-intrinsic IL-1R signaling holds dual roles in regulating intestinal homeostasis and inflammation. J Exp Med 2023; 220:e20212523. [PMID: 36976181 PMCID: PMC10067527 DOI: 10.1084/jem.20212523] [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: 12/20/2021] [Revised: 12/20/2022] [Accepted: 03/02/2023] [Indexed: 03/29/2023] Open
Abstract
Intestinal epithelial cells (IECs) constitute a critical first line of defense against microbes. While IECs are known to respond to various microbial signals, the precise upstream cues regulating diverse IEC responses are not clear. Here, we discover a dual role for IEC-intrinsic interleukin-1 receptor (IL-1R) signaling in regulating intestinal homeostasis and inflammation. Absence of IL-1R in epithelial cells abrogates a homeostatic antimicrobial program including production of antimicrobial peptides (AMPs). Mice deficient for IEC-intrinsic IL-1R are unable to clear Citrobacter rodentium (C. rodentium) but are protected from DSS-induced colitis. Mechanistically, IL-1R signaling enhances IL-22R-induced signal transducer and activator of transcription 3 (STAT3) phosphorylation in IECs leading to elevated production of AMPs. IL-1R signaling in IECs also directly induces expression of chemokines as well as genes involved in the production of reactive oxygen species. Our findings establish a protective role for IEC-intrinsic IL-1R signaling in combating infections but a detrimental role during colitis induced by epithelial damage.
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Affiliation(s)
- Garrett R. Overcast
- Immunology Graduate Program, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Hannah E. Meibers
- Immunology Graduate Program, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Emily M. Eshleman
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Irene Saha
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Lisa Waggoner
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Krupaben N. Patel
- Divisions of Gastroenterology, Hepatology, and Nutrition and of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Viral G. Jain
- Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - David B. Haslam
- Division of Infectious Diseases, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Theresa Alenghat
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Kelli L. VanDussen
- Divisions of Gastroenterology, Hepatology, and Nutrition and of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Chandrashekhar Pasare
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
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4
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Korkmaz FT, Traber KE. Innate immune responses in pneumonia. Pneumonia (Nathan) 2023; 15:4. [PMID: 36829255 PMCID: PMC9957695 DOI: 10.1186/s41479-023-00106-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 01/05/2023] [Indexed: 02/26/2023] Open
Abstract
The lungs are an immunologically unique environment; they are exposed to innumerable pathogens and particulate matter daily. Appropriate clearance of pathogens and response to pollutants is required to prevent overwhelming infection, while preventing tissue damage and maintaining efficient gas exchange. Broadly, the innate immune system is the collection of immediate, intrinsic immune responses to pathogen or tissue injury. In this review, we will examine the innate immune responses of the lung, with a particular focus on their role in pneumonia. We will discuss the anatomic barriers and antimicrobial proteins of the lung, pathogen and injury recognition, and the role of leukocytes (macrophages, neutrophils, and innate lymphocytes) and lung stromal cells in innate immunity. Throughout the review, we will focus on new findings in innate immunity as well as features that are unique to the lung.
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Affiliation(s)
- Filiz T Korkmaz
- Department of Medicine, Division of Immunology & Infectious Disease, University of Massachusetts, Worcester, MA, USA
- Pulmonary Center, Boston University School of Medicine, Boston, MA, USA
| | - Katrina E Traber
- Pulmonary Center, Boston University School of Medicine, Boston, MA, USA.
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
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5
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Immune Cells Are Differentially Modulated in the Heart and the Kidney during the Development of Cardiorenal Syndrome 3. Cells 2023; 12:cells12040605. [PMID: 36831272 PMCID: PMC9953884 DOI: 10.3390/cells12040605] [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: 01/03/2023] [Revised: 01/28/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
Cardiorenal syndrome type 3 (CRS 3) occurs when there is an acute kidney injury (AKI) leading to the development of an acute cardiac injury. The immune system is involved in modulating the severity of kidney injury, and the role of immune system cells in the development of CRS 3 is not well established. The present work aims to characterize the macrophage and T and B lymphocyte populations in kidney and heart tissue after AKI induced by renal I/R. Thus, C57BL/6 mice were subjected to a renal I/R protocol by occlusion of the left renal pedicle (unilateral) for 60 min, followed by reperfusion for 3, 8 and 15 days. The immune cell populations of interest were identified using flow cytometry, and RT-qPCR was used to evaluate gene expression. As a result, a significant increase in TCD4+, TCD8+ lymphocytes and M1 macrophages to the renal tissue was observed, while B cells in the heart decreased. A renal tissue repair response characterized by Foxp3 activation predominated. However, a more inflammatory profile was shown in the heart tissue influenced by IL-17RA and IL-1β. In conclusion, the AKI generated by renal I/R was able to activate and recruit T and B lymphocytes and macrophages, as well as pro-inflammatory mediators to renal and cardiac tissue, showing the role of the immune system as a bridge between both organs in the context of CRS 3.
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6
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Kong W, Li X, Zou M, Zhang Y, Cai H, Zhang L, Wang X. iNKT17 cells play a pathogenic role in ethinylestradiol-induced cholestatic hepatotoxicity. Arch Toxicol 2023; 97:561-580. [PMID: 36329302 DOI: 10.1007/s00204-022-03403-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
IL-17 is closely associated with inflammation in intrahepatic cholestasis (IHC). Targeting IL-17 ameliorates IHC in mice. Invariant natural killer T (iNKT) cells are predominantly enriched in the liver and they mediate drug-induced liver injury through their secreted cytokines. However, whether iNKT17 cells are involved in ethinylestradiol (EE)-induced IHC remains unclear. In the present study, the administration of EE (10 mg/kg in vivo and 6.25 μM in vitro) promoted the activation and expansion of iNKT17 cells, which contributed to a novel hepatic iNKT17/Treg imbalance. iNKT cell-deficient Jα18-/- mice and the RORγt inhibitor digoxin (20 μg) alleviated EE-induced cholestatic hepatotoxicity and downregulated the IL-17 signalling pathway. In contrast, the co-administration of EE with recombinant IL-17 (1 μg) to Jα18-/- mice induced cholestatic hepatotoxicity and increased the infiltration of hepatic neutrophils and monocytes. Importantly, the administration of IL-17-/- iNKT cells (3.5 × 105) to Jα18-/- mice resulted in the attenuation of hepatotoxicity and the recruitment of fewer hepatic neutrophils and monocytes than the adoptive transfer of wild-type iNKT cells. These results indicated that iNKT17 cells could exert pathogenic effects. The recruitment and activation of iNKT17 cells could be attributed to the high level of CXCR3 expression on their surface. CXCL10 deficiency ameliorated EE-induced cholestatic liver damage, reduced hepatic CXCR3+ iNKT cells and inhibited RORγt expression. These findings suggest that iNKT17 cells play a key role in EE-induced cholestatic liver injury via CXCR3-mediated recruitment and activation. Our study provides new insights and therapeutic targets for cholestatic diseases.
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Affiliation(s)
- Weichao Kong
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Xinyu Li
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Mengzhi Zou
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Yiying Zhang
- Division of Biosciences, University College London, London, WC1E 6BT, UK
| | - Heng Cai
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Luyong Zhang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Xinzhi Wang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
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7
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Esnault S, Jarjour NN. Development of Adaptive Immunity and Its Role in Lung Remodeling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1426:287-351. [PMID: 37464127 DOI: 10.1007/978-3-031-32259-4_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Asthma is characterized by airflow limitations resulting from bronchial closure, which can be either reversible or fixed due to changes in airway tissue composition and structure, also known as remodeling. Airway remodeling is defined as increased presence of mucins-producing epithelial cells, increased thickness of airway smooth muscle cells, angiogenesis, increased number and activation state of fibroblasts, and extracellular matrix (ECM) deposition. Airway inflammation is believed to be the main cause of the development of airway remodeling in asthma. In this chapter, we will review the development of the adaptive immune response and the impact of its mediators and cells on the elements defining airway remodeling in asthma.
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Sorokina EV, Bisheva IV. The role of cells of the innate immune system in psoriasis. VESTNIK DERMATOLOGII I VENEROLOGII 2022. [DOI: 10.25208/vdv1330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Psoriasis is an immune-mediated disease with a complex pathogenesis. The close relationship between the development of psoriasis and the adaptive immune response is already known. However, recent data have shown that innate immune cells also play an important role in the development of psoriasis. Congenital lymphoid cells, dendritic cells, T cells, NK cells, and NKT lymphocytes are activated in psoriasis, contributing to disease pathology through IL-17-dependent and independent mechanisms. During disease progression, T cells secrete proinflammatory cytokines that induce and exacerbate the course of psoriasis. T cells have memory cell properties that respond rapidly to secondary stimulation, which contributes to disease relapse. This article presents an overview of recent findings demonstrating the role of innate immunity in psoriasis.
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Darrigues J, Almeida V, Conti E, Ribot JC. The multisensory regulation of unconventional T cell homeostasis. Semin Immunol 2022; 61-64:101657. [PMID: 36370671 DOI: 10.1016/j.smim.2022.101657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/29/2022] [Accepted: 09/21/2022] [Indexed: 12/14/2022]
Abstract
Unconventional T cells typically group γδ T cells, invariant Natural Killer T cells (NKT) and Mucosal Associated Invariant T (MAIT) cells. With their pre-activated status and biased tropism for non-lymphoid organs, they provide a rapid (innate-like) and efficient first line of defense against pathogens at strategical barrier sites, while they can also trigger chronic inflammation, and unexpectedly contribute to steady state physiology. Thus, a tight control of their homeostasis is critical to maintain tissue integrity. In this review, we discuss the recent advances of our understanding of the factors, from neuroimmune to inflammatory regulators, shaping the size and functional properties of unconventional T cell subsets in non-lymphoid organs. We present a general overview of the mechanisms common to these populations, while also acknowledging specific aspects of their diversity. We mainly focus on their maintenance at steady state and upon inflammation, highlighting some key unresolved issues and raising upcoming technical, fundamental and translational challenges.
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Affiliation(s)
- Julie Darrigues
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Professor Egas Moniz, 1649-028 Lisboa, Portugal.
| | - Vicente Almeida
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Eller Conti
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Julie C Ribot
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Professor Egas Moniz, 1649-028 Lisboa, Portugal.
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10
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López-Filloy M, Cortez FJ, Gheit T, Cruz y Cruz O, Cruz-Talonia F, Chávez-Torres M, Arteaga-Gómez C, Mancilla-Herrera I, Montesinos JJ, Cortés-Morales VA, Aguilar C, Tommasino M, Pinto-Cardoso S, Rocha-Zavaleta L. Altered Vaginal Microbiota Composition Correlates With Human Papillomavirus and Mucosal Immune Responses in Women With Symptomatic Cervical Ectopy. Front Cell Infect Microbiol 2022; 12:884272. [PMID: 35656032 PMCID: PMC9152460 DOI: 10.3389/fcimb.2022.884272] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/19/2022] [Indexed: 01/04/2023] Open
Abstract
Cervical ectopy is a benign condition of the lower genital tract that is frequently detected in women of reproductive age. Although cervical ectopy is regarded as a physiological condition, some women experience symptoms such as leucorrhoea, persistent bleeding and recurrent vaginal infections that require medical intervention. Cervical ectopy has not been linked to cervical cancer, but it is thought to facilitate the acquisition of sexually transmitted diseases (STDs), like Human Papillomavirus (HPV) infection, as it provides a favorable microenvironment for virus infection and dissemination. We and others have described the presence of oncogenic HPV types in women with symptomatic cervical ectopy. The relevance of this finding and the impact of symptomatic cervical ectopy on the cervicovaginal microenvironment (vaginal microbiota, immune and inflammatory responses) are currently unknown. To shed some light into the interplay between HPV, the vaginal microbiota and mucosal immune and inflammatory responses in the context of this condition, we enrolled 156 women with symptomatic cervical ectopy and determined the presence of HPV using a type-specific multiplex genotyping assay. Overall, HPV was detected in 54.48% women, oncogenic HPV types were found in more than 90% of HPV-positive cases. The most prevalent HPV types were HPV16 (29.4%), HPV31 (21.17%) and HPV18 (15.29%). Next, we evaluated the vaginal microbial composition and diversity by 16S rDNA sequencing, and quantified levels of cytokines and chemokines by flow cytometry using bead-based multiplex assays in a sub-cohort of 63 women. IL-21 and CXCL9 were significantly upregulated in HPV-positive women (p=0.0002 and p=0.013, respectively). Women with symptomatic cervical ectopy and HPV infection had increased diversity (p<0.001), and their vaginal microbiota was enriched in bacterial vaginosis-associated anaerobes (Sneathia, Shuttleworthia, Prevotella, and Atopobium) and depleted in Lactobacillus spp. Furthermore, the vaginal microbiota of women with symptomatic cervical ectopy and HPV infection correlated with vaginal inflammation (IL-1β, rho=0.56, p=0.0004) and increased mucosal homeostatic response (IL-22, rho=0.60, p=0.0001). Taken together, our results suggest that HPV infection and dysbiotic vaginal communities could favor a vaginal microenvironment that might delay the recovery of the cervical epithelium in women with symptomatic cervical ectopy and favor STDs acquisition.
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Affiliation(s)
- Mariana López-Filloy
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Flor J. Cortez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Tarik Gheit
- International Agency for Research on Cancer, Lyon, France
| | - Omar Cruz y Cruz
- Clínica de Colposcopia Fundación “Cruz Talonia”, Ciudad de Mexico, Mexico
| | | | - Monserrat Chávez-Torres
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, Mexico
| | - Cristina Arteaga-Gómez
- Deparatamento de Oncología, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México, Mexico
| | - Ismael Mancilla-Herrera
- Departamento de Infectología e Inmunología, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México, Mexico
| | - Juan J. Montesinos
- Mesenchymal Stem Cells Laboratory, Oncology Research Unit, Oncology Hospital, National Medical Center, Instituto Mexicano del Seguro Social (IMSS), Mexico City, Mexico
| | - Víctor Adrián Cortés-Morales
- Mesenchymal Stem Cells Laboratory, Oncology Research Unit, Oncology Hospital, National Medical Center, Instituto Mexicano del Seguro Social (IMSS), Mexico City, Mexico
| | - Cecilia Aguilar
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | | | - Sandra Pinto-Cardoso
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, Mexico
| | - Leticia Rocha-Zavaleta
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
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11
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Abstract
Autoimmune disease is known to be caused by unregulated self-antigen-specific T cells, causing tissue damage. Although antigen specificity is an important mechanism of the adaptive immune system, antigen non-related T cells have been found in the inflamed tissues in various conditions. Bystander T cell activation refers to the activation of T cells without antigen recognition. During an immune response to a pathogen, bystander activation of self-reactive T cells via inflammatory mediators such as cytokines can trigger autoimmune diseases. Other antigen-specific T cells can also be bystander-activated to induce innate immune response resulting in autoimmune disease pathogenesis along with self-antigen-specific T cells. In this review, we summarize previous studies investigating bystander activation of various T cell types (NKT, γδ T cells, MAIT cells, conventional CD4+, and CD8+ T cells) and discuss the role of innate-like T cell response in autoimmune diseases. In addition, we also review previous findings of bystander T cell function in infection and cancer. A better understanding of bystander-activated T cells versus antigen-stimulated T cells provides a novel insight to control autoimmune disease pathogenesis.
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Affiliation(s)
- Chae-Hyeon Shim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Sookyung Cho
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Young-Mi Shin
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Je-Min Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
- Research Institute for Natural Sciences, Institute for Rheumatology Research, Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Korea
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12
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Murray MP, Crosby CM, Marcovecchio P, Hartmann N, Chandra S, Zhao M, Khurana A, Zahner SP, Clausen BE, Coleman FT, Mizgerd JP, Mikulski Z, Kronenberg M. Stimulation of a subset of natural killer T cells by CD103 + DC is required for GM-CSF and protection from pneumococcal infection. Cell Rep 2022; 38:110209. [PMID: 35021099 DOI: 10.1016/j.celrep.2021.110209] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/17/2021] [Accepted: 12/13/2021] [Indexed: 11/18/2022] Open
Abstract
Innate-like T cells, including invariant natural killer T cells, mucosal-associated invariant T cells, and γδ T cells, are present in various barrier tissues, including the lung, where they carry out protective responses during infections. Here, we investigate their roles during pulmonary pneumococcal infection. Following infection, innate-like T cells rapidly increase in lung tissue, in part through recruitment, but T cell antigen receptor activation and cytokine production occur mostly in interleukin-17-producing NKT17 and γδ T cells. NKT17 cells are preferentially located within lung tissue prior to infection, as are CD103+ dendritic cells, which are important both for antigen presentation to NKT17 cells and γδ T cell activation. Whereas interleukin-17-producing γδ T cells are numerous, granulocyte-macrophage colony-stimulating factor is exclusive to NKT17 cells and is required for optimal protection. These studies demonstrate how particular cellular interactions and responses of functional subsets of innate-like T cells contribute to protection from pathogenic lung infection.
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Affiliation(s)
- Mallory Paynich Murray
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Catherine M Crosby
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Paola Marcovecchio
- Microscopy and Histology Core Facility, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Nadine Hartmann
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Shilpi Chandra
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Meng Zhao
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Archana Khurana
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Sonja P Zahner
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Björn E Clausen
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz 55131, Germany
| | - Fadie T Coleman
- Pulmonary Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Joseph P Mizgerd
- Pulmonary Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Zbigniew Mikulski
- Microscopy and Histology Core Facility, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Mitchell Kronenberg
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92037, USA.
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13
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Klibi J, Joseph C, Delord M, Teissandier A, Lucas B, Chomienne C, Toubert A, Bourc'his D, Guidez F, Benlagha K. PLZF Acetylation Levels Regulate NKT Cell Differentiation. THE JOURNAL OF IMMUNOLOGY 2021; 207:809-823. [PMID: 34282003 DOI: 10.4049/jimmunol.2001444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 05/23/2021] [Indexed: 12/13/2022]
Abstract
The transcription factor promyelocytic leukemia zinc finger (PLZF) is encoded by the BTB domain-containing 16 (Zbtb16) gene. Its repressor function regulates specific transcriptional programs. During the development of invariant NKT cells, PLZF is expressed and directs their effector program, but the detailed mechanisms underlying PLZF regulation of multistage NKT cell developmental program are not well understood. This study investigated the role of acetylation-induced PLZF activation on NKT cell development by analyzing mice expressing a mutant form of PLZF mimicking constitutive acetylation (PLZFON) mice. NKT populations in PLZFON mice were reduced in proportion and numbers of cells, and the cells present were blocked at the transition from developmental stage 1 to stage 2. NKT cell subset differentiation was also altered, with T-bet+ NKT1 and RORγt+ NKT17 subsets dramatically reduced and the emergence of a T-bet-RORγt- NKT cell subset with features of cells in early developmental stages rather than mature NKT2 cells. Preliminary analysis of DNA methylation patterns suggested that activated PLZF acts on the DNA methylation signature to regulate NKT cells' entry into the early stages of development while repressing maturation. In wild-type NKT cells, deacetylation of PLZF is possible, allowing subsequent NKT cell differentiation. Interestingly, development of other innate lymphoid and myeloid cells that are dependent on PLZF for their generation is not altered in PLZFON mice, highlighting lineage-specific regulation. Overall, we propose that specific epigenetic control of PLZF through acetylation levels is required to regulate normal NKT cell differentiation.
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Affiliation(s)
- Jihene Klibi
- Institut de Recherche Saint-Louis, Université Paris Diderot, Sorbonne Paris Cité, INSERM U1160, Paris, France;
| | - Claudine Joseph
- Institut de Recherche Saint-Louis, Université Paris Diderot, Sorbonne Paris Cité, INSERM U1160, Paris, France
| | - Marc Delord
- Plateforme de Bioinformatique et Biostatistique, Institut de Recherche Saint-Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Aurelie Teissandier
- Génétique et Biologie du Développement, Institut Curie, CNRS UMR 3215/INSERM U934, Paris, Cedex 05, France
| | - Bruno Lucas
- Institut Cochin, Université Paris Descartes, CNRS UMR 8104, INSERM U1016, Paris, France; and
| | - Christine Chomienne
- Institut de Recherche Saint-Louis, Université de Paris, UMRS 1131, INSERM, Paris, France
| | - Antoine Toubert
- Institut de Recherche Saint-Louis, Université Paris Diderot, Sorbonne Paris Cité, INSERM U1160, Paris, France
| | - Deborah Bourc'his
- Génétique et Biologie du Développement, Institut Curie, CNRS UMR 3215/INSERM U934, Paris, Cedex 05, France
| | - Fabien Guidez
- Institut de Recherche Saint-Louis, Université de Paris, UMRS 1131, INSERM, Paris, France
| | - Kamel Benlagha
- Institut de Recherche Saint-Louis, Université Paris Diderot, Sorbonne Paris Cité, INSERM U1160, Paris, France;
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14
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Abstract
PURPOSE OF REVIEW The recognition that IL-17 is produced by many lymphoid-like cells other than CD4+ T helper (Th17) cells raises the potential for new pathogenic pathways in IBD/psoriasis/SpA. We review recent knowledge concerning the role of unconventional and conventional lymphocytes expressing IL-17 in human PsA and axSpA. RECENT FINDINGS Innate-like lymphoid cells, namely gamma delta (γδ) T-cells, invariant natural killer T (iNKT) cells and mucosal-associated invariant T (MAIT) cells, together with innate lymphoid cells (ILCs) are found at sites of disease in PsA/SpA. These cells are often skewed to Type-17 profiles and may significantly contribute to IL-17 production. Non-IL-23 dependent IL-17 production pathways, utilising cytokines such as IL-7 and IL-9, also characterise these cells. Both conventional CD4 and CD8 lymphocytes show pathogenic phenotypes at sites of disease. A variety of innate-like lymphoid cells and conventional lymphocytes contribute towards IL-17-mediated pathology in PsA/SpA. The responses of these cells to non-conventional immune and non-immune stimuli may explain characteristic clinical features of these diseases and potential therapeutic mechanisms of therapies such as Jak inhibitors.
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15
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Abstract
Interleukin-22 (IL-22) is secreted by a wide range of immune cells and its downstream effects are mediated by the IL-22 receptor, which is present on non-immune cells in many organs throughout the body. IL-22 is an inflammatory mediator that conditions the tissue compartment by upregulating innate immune responses and is also a homeostatic factor that promotes tissue integrity and regeneration. Interestingly, the IL-22 system has also been linked to many T cell driven inflammatory diseases. Despite this, the downstream effects of IL-22 on the adaptive immune system has received little attention. We have reviewed the literature for experimental data that suggest IL-22 mediated effects on T cells, either transduced directly or via mediators expressed by innate immune cells or non-immune cells in response to IL-22. Collectively, the reviewed data indicate that IL-22 has a hitherto unappreciated influence on T helper cell polarization, or the secretion of signature cytokines, that is context dependent but in many cases results in a reduction of the Th1 type response and to some extent promotion of regulatory T cells. Further studies are needed that specifically address these aspects of IL-22 signaling, which can benefit the understanding and treatment of a wide range of diseases.
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Affiliation(s)
- Hannes Lindahl
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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16
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Nancy Z, Yan L, Hui S, Paul B, Liye C. From the Genetics of Ankylosing Spondylitis to New Biology and Drug Target Discovery. Front Immunol 2021; 12:624632. [PMID: 33679768 PMCID: PMC7925991 DOI: 10.3389/fimmu.2021.624632] [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: 10/31/2020] [Accepted: 01/22/2021] [Indexed: 12/31/2022] Open
Abstract
Genome-wide association studies (GWAS) have identified 113 single nucleotide polymorphisms (SNPs) affecting the risk of developing ankylosing spondylitis (AS), and an on-going GWAS study will likely identify 100+ new risk loci. The translation of genetic findings to novel disease biology and treatments has been difficult due to the following challenges: (1) difficulties in determining the causal genes regulated by disease-associated SNPs, (2) difficulties in determining the relevant cell-type(s) that causal genes exhibit their function(s), (3) difficulties in determining appropriate cellular contexts to interrogate the functional role of causal genes in disease biology. This review will discuss recent progress and unanswered questions with a focus on these challenges. Additionally, we will review the investigation of biology and the development of drugs related to the IL-23/IL-17 pathway, which has been partially driven by the AS genetics, and discuss what can be learned from these studies for the future functional and translational study of AS-associated genes.
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Affiliation(s)
- Zaarour Nancy
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Li Yan
- Department of Rheumatology, The First Affiliated Hospital of Xiamen University, Medical College of Xiamen University, Xiamen, China
| | - Shi Hui
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Bowness Paul
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Chen Liye
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
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17
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Russell T, Bridgewood C, Rowe H, Altaie A, Jones E, McGonagle D. Cytokine "fine tuning" of enthesis tissue homeostasis as a pointer to spondyloarthritis pathogenesis with a focus on relevant TNF and IL-17 targeted therapies. Semin Immunopathol 2021; 43:193-206. [PMID: 33544244 PMCID: PMC7990848 DOI: 10.1007/s00281-021-00836-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/04/2021] [Indexed: 12/17/2022]
Abstract
A curious feature of axial disease in ankylosing spondylitis (AS) and related non-radiographic axial spondyloarthropathy (nrAxSpA) is that spinal inflammation may ultimately be associated with excessive entheseal tissue repair with new bone formation. Other SpA associated target tissues including the gut and the skin have well established paradigms on how local tissue immune responses and proven disease relevant cytokines including TNF and the IL-23/17 axis contribute to tissue repair. Normal skeletal homeostasis including the highly mechanically stressed entheseal sites is subject to tissue microdamage, micro-inflammation and ultimately repair. Like the skin and gut, healthy enthesis has resident immune cells including ILCs, γδ T cells, conventional CD4+ and CD8+ T cells and myeloid lineage cells capable of cytokine induction involving prostaglandins, growth factors and cytokines including TNF and IL-17 that regulate these responses. We discuss how human genetic studies, animal models and translational human immunology around TNF and IL-17 suggest a largely redundant role for these pathways in physiological tissue repair and homeostasis. However, disease associated immune system overactivity of these cytokines with loss of tissue repair “fine tuning” is eventually associated with exuberant tissue repair responses in AS. Conversely, excessive biomechanical stress at spinal enthesis or peripheral enthesis with mechanically related or degenerative conditions is associated with a normal immune system attempts at cytokine fine tuning, but in this setting, it is commensurate to sustained abnormal biomechanical stressing. Unlike SpA, where restoration of aberrant and excessive cytokine “fine tuning” is efficacious, antagonism of these pathways in biomechanically related disease may be of limited or even no value.
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Affiliation(s)
- Tobias Russell
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK
| | - Charlie Bridgewood
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK
| | - Hannah Rowe
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK
| | - Ala Altaie
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK
| | - Elena Jones
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK
| | - Dennis McGonagle
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK.
- Section of Musculoskeletal Disease, Leeds Institute of Molecular Medicine, University of Leeds, NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK.
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18
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Witte K, Koch E, Volk HD, Wolk K, Sabat R. The herbal extract EPs® 7630 increases the antimicrobial airway defense through monocyte-dependent induction of IL-22 in T cells. J Mol Med (Berl) 2020; 98:1493-1503. [PMID: 32948884 PMCID: PMC7524690 DOI: 10.1007/s00109-020-01970-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 08/04/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023]
Abstract
The phytotherapeutic compound EPs® 7630, an extract manufactured from Pelargonium sidoides roots, is frequently used for the treatment of airway infections. Nevertheless, the knowledge of the mode of action of EPs® 7630 is still sparse. Our study aimed at further elucidating the underlying pharmacological mechanisms by focusing on antimicrobial defense mechanisms of EPs® 7630. While investigating the influence of EPs® 7630 on lymphokine production by PBMCs, we found that EPs® 7630 is a novel inducer of IL-22 and IL-17. This cytokine-inducing effect was most pronounced for IL-22 and clearly dose-dependent starting from 1 μg/ml of the extract. Furthermore, EPs® 7630 pretreatment selectively enhanced the IL-22 and IL-17 production capacity of CD3/28-activated PBMCs while strongly limiting the IFN-γ production capacity of innate lymphoid cells. The relevance of EPs® 7630-induced IL-22 production was proven in vitro and in vivo, where IL-22 provoked a strong increase of the antimicrobial protein S100A9 in lung epithelial cells and pulmonary tissue, respectively. A detailed analysis of IL-22 induction modi revealed no direct influence of EPs® 7630 on the basal or anti-CD3/CD28 antibody-induced IL-22 production by CD4+ memory T cells. In fact, EPs® 7630-induced IL-22 production by CD4+ memory T cells was found to be essentially dependent on soluble mediators (IL-1/IL-23) as well as on direct cellular contact with monocytes. In summary, our study reveals a new immune-modulating function of EPs® 7630 that might confer IL-22 and IL-17-induced protection from bacterial airway infection. KEY MESSAGES: EPs® 7630 selectively strengthens IL-22 and IL-17 production of memory T cells. EPs® 7630 limits the IFN-y production capacity of innate lymphoid cells. EPs® 7630-caused IL-22 production by T cells is essentially dependent on monocytes. IL-22 increase antimicrobial proteins (AMPs) in airway epithelium. EPs® 7630 might protect against airway infection by induction of AMP-inducers.
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Affiliation(s)
- Katrin Witte
- Interdisciplinary Group of Molecular Immunopathology Dermatology/Medical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Charité - Universitätsmedizin, Berlin, Germany
| | - Egon Koch
- Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
- , Karlsruhe, Germany
| | - Hans-Dieter Volk
- BIH Center for Regenerative Therapies, Charité - Universitätsmedizin, Berlin, Germany
- Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kerstin Wolk
- Interdisciplinary Group of Molecular Immunopathology Dermatology/Medical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Charité - Universitätsmedizin, Berlin, Germany
- Psoriasis Research and Treatment Center, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Robert Sabat
- Interdisciplinary Group of Molecular Immunopathology Dermatology/Medical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
- Psoriasis Research and Treatment Center, Charité - Universitätsmedizin Berlin, Berlin, Germany.
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19
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Klibi J, Li S, Amable L, Joseph C, Brunet S, Delord M, Parietti V, Jaubert J, Marie J, Karray S, Eberl G, Lucas B, Toubert A, Benlagha K. Characterization of the developmental landscape of murine RORγt+ iNKT cells. Int Immunol 2020; 32:105-116. [PMID: 31565740 DOI: 10.1093/intimm/dxz064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 09/26/2019] [Indexed: 12/15/2022] Open
Abstract
Invariant natural killer T (iNKT) cells expressing the retinoic acid receptor-related orphan receptor γt (RORγt) and producing IL-17 represent a minor subset of CD1d-restricted iNKT cells (iNKT17) in C57BL/6J (B6) mice. We aimed in this study to define the reasons for their low distribution and the sequence of events accompanying their normal thymic development. We found that RORγt+ iNKT cells have higher proliferation potential and a greater propensity to apoptosis than RORγt- iNKT cells. These cells do not likely reside in the thymus indicating that thymus emigration, and higher apoptosis potential, could contribute to RORγt+ iNKT cell reduced thymic distribution. Ontogeny studies suggest that mature HSAlow RORγt+ iNKT cells might develop through developmental stages defined by a differential expression of CCR6 and CD138 during which RORγt expression and IL-17 production capabilities are progressively acquired. Finally, we found that RORγt+ iNKT cells perceive a strong TCR signal that could contribute to their entry into a specific 'Th17 like' developmental program influencing their survival and migration. Overall, our study proposes a hypothetical thymic developmental sequence for iNKT17 cells, which could be of great use to study molecular mechanisms regulating this developmental program.
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Affiliation(s)
- Jihene Klibi
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Shamin Li
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Ludivine Amable
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Claudine Joseph
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Stéphane Brunet
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Marc Delord
- Plateforme de Bioinformatique et Biostatistique, Institut Universitaire d'Hématologie, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Veronique Parietti
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Département d'Expérimentation Animale, Institut Universitaire d'Hématologie, Paris, France
| | - Jean Jaubert
- Mouse Genetics Unit, Institut Pasteur, Paris, France
| | - Julien Marie
- Department of Immunology, Virology and Inflammation, Cancer Research Center of Lyon UMR INSERM1052, CNRS 5286, Centre Léon Bérard Hospital, Université de Lyon, Equipe labellisée LIGUE, Lyon, France
| | - Saoussen Karray
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Gerard Eberl
- Microenvironment &Immunity Unit, Institut Pasteur, Paris, France.,INSERM U1224, Paris, France
| | - Bruno Lucas
- Institut Cochin, Centre National de la Recherche Scientifique UMR8104, INSERM U1016, Université Paris Descartes, Paris, France
| | - Antoine Toubert
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Kamel Benlagha
- INSERM, UMR-1160, Institut Universitaire d'Hématologie, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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20
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Jouan Y, Guillon A, Gonzalez L, Perez Y, Boisseau C, Ehrmann S, Ferreira M, Daix T, Jeannet R, François B, Dequin PF, Si-Tahar M, Baranek T, Paget C. Phenotypical and functional alteration of unconventional T cells in severe COVID-19 patients. J Exp Med 2020; 217:152073. [PMID: 32886755 PMCID: PMC7472174 DOI: 10.1084/jem.20200872] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/24/2020] [Accepted: 08/12/2020] [Indexed: 12/22/2022] Open
Abstract
COVID-19 includes lung infection ranging from mild pneumonia to life-threatening acute respiratory distress syndrome (ARDS). Dysregulated host immune response in the lung is a key feature in ARDS pathophysiology. However, cellular actors involved in COVID-19-driven ARDS are poorly understood. Here, in blood and airways of severe COVID-19 patients, we serially analyzed unconventional T cells, a heterogeneous class of T lymphocytes (MAIT, γδT, and iNKT cells) with potent antimicrobial and regulatory functions. Circulating unconventional T cells of COVID-19 patients presented with a profound and persistent phenotypic alteration. In the airways, highly activated unconventional T cells were detected, suggesting a potential contribution in the regulation of local inflammation. Finally, expression of the CD69 activation marker on blood iNKT and MAIT cells of COVID-19 patients on admission was predictive of clinical course and disease severity. Thus, COVID-19 patients present with an altered unconventional T cell biology, and further investigations will be required to precisely assess their functions during SARS-CoV-2-driven ARDS.
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Affiliation(s)
- Youenn Jouan
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de Médecine Intensive et Réanimation, Centre Hospitalier Régional Universitaire, Tours, France.,Service de chirurgie cardiaque et de réanimation chirurgicale cardio-vasculaire, Centre Hospitalier Régional Universitaire, Tours, France
| | - Antoine Guillon
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de Médecine Intensive et Réanimation, Centre Hospitalier Régional Universitaire, Tours, France
| | - Loïc Gonzalez
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Yonatan Perez
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de Médecine Intensive et Réanimation, Centre Hospitalier Régional Universitaire, Tours, France
| | - Chloé Boisseau
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Stephan Ehrmann
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de Médecine Intensive et Réanimation, Centre Hospitalier Régional Universitaire, Tours, France
| | - Marion Ferreira
- Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de pneumologie, Centre Hospitalier Régional Universitaire, Tours, France
| | - Thomas Daix
- Intensive Care Unit, Dupuytren Teaching Hospital, Limoges, France.,Institut national de la santé et de la recherche médicale CIC1435, Dupuytren Teaching Hospital, Limoges, France.,Institut national de la santé et de la recherche médicale UMR 1092, University of Limoges, Limoges, France
| | - Robin Jeannet
- Intensive Care Unit, Dupuytren Teaching Hospital, Limoges, France.,Institut national de la santé et de la recherche médicale CIC1435, Dupuytren Teaching Hospital, Limoges, France.,Institut national de la santé et de la recherche médicale UMR 1092, University of Limoges, Limoges, France
| | - Bruno François
- Intensive Care Unit, Dupuytren Teaching Hospital, Limoges, France.,Institut national de la santé et de la recherche médicale CIC1435, Dupuytren Teaching Hospital, Limoges, France.,Institut national de la santé et de la recherche médicale UMR 1092, University of Limoges, Limoges, France
| | - Pierre-François Dequin
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de Médecine Intensive et Réanimation, Centre Hospitalier Régional Universitaire, Tours, France
| | - Mustapha Si-Tahar
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Thomas Baranek
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Christophe Paget
- Institut national de la santé et de la recherche médicale, Centre d'Etude des Pathologies Respiratoires, UMR 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
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21
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Sato Y, Ogawa E, Okuyama R. Role of Innate Immune Cells in Psoriasis. Int J Mol Sci 2020; 21:ijms21186604. [PMID: 32917058 PMCID: PMC7554918 DOI: 10.3390/ijms21186604] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin condition caused by a combination of hereditary and environmental factors. Its development is closely related to the adaptive immune response. T helper 17 cells are major IL-17-producing cells, a function that plays an important role in the pathogenesis of psoriasis. However, recent findings have demonstrated that innate immune cells also contribute to the development of psoriasis. Innate lymphoid cells, γδ T cells, natural killer T cells, and natural killer cells are activated in psoriasis, contributing to disease pathology through IL-17-dependent and -independent mechanisms. The present review provides an overview of recent findings, demonstrating a role for innate immunity in psoriasis.
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Affiliation(s)
| | | | - Ryuhei Okuyama
- Correspondence: ; Tel.: +81-263-37-2645; Fax: +81-263-37-2646
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22
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Yang W, Yu T, Huang X, Bilotta AJ, Xu L, Lu Y, Sun J, Pan F, Zhou J, Zhang W, Yao S, Maynard CL, Singh N, Dann SM, Liu Z, Cong Y. Intestinal microbiota-derived short-chain fatty acids regulation of immune cell IL-22 production and gut immunity. Nat Commun 2020; 11:4457. [PMID: 32901017 PMCID: PMC7478978 DOI: 10.1038/s41467-020-18262-6] [Citation(s) in RCA: 460] [Impact Index Per Article: 115.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 08/14/2020] [Indexed: 12/16/2022] Open
Abstract
Innate lymphoid cells (ILCs) and CD4+ T cells produce IL-22, which is critical for intestinal immunity. The microbiota is central to IL-22 production in the intestines; however, the factors that regulate IL-22 production by CD4+ T cells and ILCs are not clear. Here, we show that microbiota-derived short-chain fatty acids (SCFAs) promote IL-22 production by CD4+ T cells and ILCs through G-protein receptor 41 (GPR41) and inhibiting histone deacetylase (HDAC). SCFAs upregulate IL-22 production by promoting aryl hydrocarbon receptor (AhR) and hypoxia-inducible factor 1α (HIF1α) expression, which are differentially regulated by mTOR and Stat3. HIF1α binds directly to the Il22 promoter, and SCFAs increase HIF1α binding to the Il22 promoter through histone modification. SCFA supplementation enhances IL-22 production, which protects intestines from inflammation. SCFAs promote human CD4+ T cell IL-22 production. These findings establish the roles of SCFAs in inducing IL-22 production in CD4+ T cells and ILCs to maintain intestinal homeostasis.
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MESH Headings
- Animals
- Butyrates/immunology
- Butyrates/metabolism
- Butyrates/pharmacology
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/microbiology
- Citrobacter rodentium
- Colitis/immunology
- Colitis/microbiology
- Colitis/prevention & control
- Enterobacteriaceae Infections/immunology
- Enterobacteriaceae Infections/microbiology
- Enterobacteriaceae Infections/prevention & control
- Fatty Acids, Volatile/immunology
- Fatty Acids, Volatile/metabolism
- Fatty Acids, Volatile/pharmacology
- Gastrointestinal Microbiome/immunology
- Gastrointestinal Microbiome/physiology
- Histone Deacetylase Inhibitors/pharmacology
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Immunity, Innate
- In Vitro Techniques
- Interleukins/biosynthesis
- Interleukins/deficiency
- Interleukins/genetics
- Lymphocytes/drug effects
- Lymphocytes/immunology
- Lymphocytes/microbiology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Promoter Regions, Genetic
- Receptors, Aryl Hydrocarbon/metabolism
- Receptors, G-Protein-Coupled/metabolism
- Interleukin-22
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Affiliation(s)
- Wenjing Yang
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Tianming Yu
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, 200072, Shanghai, China
| | - Xiangsheng Huang
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Anthony J Bilotta
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Leiqi Xu
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Yao Lu
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Jiaren Sun
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Fan Pan
- Immunology and Hematopoiesis Division, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Wenbo Zhang
- Department of Ophthalmology and Visual Sciences, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Suxia Yao
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Craig L Maynard
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Nagendra Singh
- Department of Biochemistry and Molecular Biology, Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA
| | - Sara M Dann
- Department of Internal Medicine, The University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Zhanju Liu
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, 200072, Shanghai, China
| | - Yingzi Cong
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX, 77555, USA.
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Shohan M, Dehghani R, Khodadadi A, Dehnavi S, Ahmadi R, Joudaki N, Houshmandfar S, Shamshiri M, Shojapourian S, Bagheri N. Interleukin-22 and intestinal homeostasis: Protective or destructive? IUBMB Life 2020; 72:1585-1602. [PMID: 32365282 DOI: 10.1002/iub.2295] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/08/2020] [Accepted: 04/11/2020] [Indexed: 12/16/2022]
Abstract
Interleukin (IL)-22 is a member of IL-10 family cytokines with various immunologic functions. As its name implies, IL-22 is known to be secreted mainly by Th22 cells, a recently discovered lineage of CD4+ T cells. Also, Th17, Th1, natural killer cells, γδT cells, and innate immune cells along with some nonlymphoid cells have been confirmed as secondary cellular sources of IL-22. Different cell types such as bronchial and intestinal epithelial cells, keratinocytes, hepatocytes, dermal fibroblasts, and tubular epithelial cells are affected by IL-22. Both pathologic and protective roles have been attributed to IL-22 in maintaining gut homeostasis and inflammation. According to the latest fast-growing investigations, IL-22 is significantly involved in various pathologies including allergic diseases, infection, autoimmunity, and cancer development. Regulating gut immune responses, barrier integrity, and inflammation is dependent on a diverse complex of cytokines and mediators which are secreted by mucosal immune cells. Several investigations have been designed to recognize the role of IL-22 in gastrointestinal immunity. This article tries to discuss the latest knowledge on this issue and clarify the potential of IL-22 to be used in the future therapeutic approaches of intestinal disorders including inflammatory bowel diseases and colon cancer.
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Affiliation(s)
- Mojtaba Shohan
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Razieh Dehghani
- Department of Pediatrics, Abuzar Children's Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Khodadadi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sajad Dehnavi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Ahmadi
- Clinical Biochemistry Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Nazanin Joudaki
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sheyda Houshmandfar
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Marziye Shamshiri
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Samira Shojapourian
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nader Bagheri
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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24
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Kamio Y, Gunge Y, Koike Y, Kuwatsuka Y, Tsuruta K, Yanagihara K, Furue M, Murota H. Insight into innate immune response in "Yusho": The impact of natural killer cell and regulatory T cell on inflammatory prone diathesis of Yusho patients. ENVIRONMENTAL RESEARCH 2020; 185:109415. [PMID: 32240844 DOI: 10.1016/j.envres.2020.109415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND In 1968 in western Japan, polychlorinated biphenyl-contaminated "Kanemi rice oil" was used in cooking, causing food poisoning in many people. More than 50 years have passed since the Yusho incident, and although inflammatory disorders such as suppuration have been observed in Yusho patients, the etiology of this inflammation susceptibility remains obscure. OBJECTIVES To investigate the mechanisms of susceptibility to inflammation in Yusho patients, peripheral immune cell fractions and concentrations of inflammatory cytokines were evaluated in blood samples collected from both Yusho patients and age-matched healthy subjects undergoing medical examination in Nagasaki. METHODS To exclude diagnostic uncertainty, serum levels of polychlorinated biphenyl (PCB), polychlorinated quarterphenyl (PCQ), and polychlorinated dibenzofuran (PCDF) were measured. Immune cell (e.g. natural killer and regulatory T cell) populations were analyzed by flow cytometry. Serum cytokines involved in immune cell activation were measured by ELISA. RESULTS The relative proportion of natural killer cells was higher in Yusho patients than in healthy subjects, while the proportion of regulatory T cells did not differ between groups. Serum concentrations of IL-36 and IFN-γ were significantly lower in Yusho patients than in healthy subjects. Conversely, serum cytotoxic T lymphocyte-associated antigen-4 (CTLA-4), which is a cytokine related to activated NK cells, was higher in Yusho patients than in healthy subjects and was positively correlated with PCDF blood levels. CONCLUSION Increased numbers of NK cells in Yusho patients suggests that the innate immune response has been activated in Yusho patients. The seemingly paradoxical results for CTLA-4 and IFN-γ may reflect counterbalancing mechanisms preventing excessive NK cell activation. This dysregulation of innate immunity might contribute to the inflammation observed in Yusho patients.
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Affiliation(s)
- Yoshiyuki Kamio
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, West Wing. 5F 3-1-1, Maidashi, Higashi-ku, Fukuoka, Japan; Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan
| | - Yumi Gunge
- Gunge Hospital, 1-9, Suehiro, Goto-shi, Nagasaki, Japan; Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan
| | - Yuta Koike
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan
| | - Yutaka Kuwatsuka
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan
| | - Kazuto Tsuruta
- Department of Laboratory Medicine, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan; Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan
| | - Masutaka Furue
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, West Wing. 5F 3-1-1, Maidashi, Higashi-ku, Fukuoka, Japan
| | - Hiroyuki Murota
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki-shi, Nagasaki, Japan.
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25
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Visvabharathy L, Genardi S, Cao L, He Y, Alonzo F, Berdyshev E, Wang CR. Group 1 CD1-restricted T cells contribute to control of systemic Staphylococcus aureus infection. PLoS Pathog 2020; 16:e1008443. [PMID: 32343740 PMCID: PMC7188215 DOI: 10.1371/journal.ppat.1008443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 02/28/2020] [Indexed: 11/19/2022] Open
Abstract
Staphylococcus aureus (SA) is the causative agent of both skin/soft tissue infections as well as invasive bloodstream infections. Though vaccines have been developed to target both humoral and T cell-mediated immune responses against SA, they have largely failed due to lack of protective efficacy. Group 1 CD1-restricted T cells recognize lipid rather than peptide antigens. Previously found to recognize lipids derived from cell wall of Mycobacterium tuberculosis (Mtb), these cells were associated with protection against Mtb infection in humans. Using a transgenic mouse model expressing human group 1 CD1 molecules (hCD1Tg), we demonstrate that group 1 CD1-restricted T cells can recognize SA-derived lipids in both immunization and infection settings. Systemic infection of hCD1Tg mice showed that SA-specific group 1 CD1-restricted T cell response peaked at 10 days post-infection, and hCD1Tg mice displayed significantly decreased kidney pathology at this time point compared with WT control mice. Immunodominant SA lipid antigens recognized by group 1 CD1-restricted T cells were comprised mainly of cardiolipin and phosphatidyl glycerol, with little contribution from lysyl-phosphatidyl glycerol which is a unique bacterial lipid not present in mammals. Group 1 CD1-restricted T cell lines specific for SA lipids also conferred protection against SA infection in the kidney after adoptive transfer. They were further able to effectively control SA replication in vitro through direct antigen presentation by group 1 CD1-expressing BMDCs. Together, our data demonstrate a previously unknown role for group 1 CD1-restricted SA lipid-specific T cells in the control of systemic MRSA infection.
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Affiliation(s)
- Lavanya Visvabharathy
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, United States of America
| | - Samantha Genardi
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, United States of America
| | - Liang Cao
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, United States of America
| | - Ying He
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, United States of America
| | - Francis Alonzo
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University, Maywood, United States of America
| | - Evgeny Berdyshev
- Department of Medicine, National Jewish Health, Denver, United States of America
| | - Chyung-Ru Wang
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, United States of America
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26
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Klibi J, Amable L, Benlagha K. A focus on natural killer T-cell subset characterization and developmental stages. Immunol Cell Biol 2020; 98:358-368. [PMID: 32187747 DOI: 10.1111/imcb.12322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/03/2020] [Accepted: 02/20/2020] [Indexed: 12/12/2022]
Abstract
Almost 20 years ago, CD1d tetramers were developed to track invariant natural killer T (NKT) cells based on their specificity, and to define developmental steps during which differentiation markers and functional features are progressively acquired from early NKT cell precursor to fully mature NKT cell subsets. Based on these findings, a linear developmental model was proposed and subsequently used by all studies investigating the specific role of factors that control NKT cell development. More recently, based on intracellular staining patterns of lineage-specific transcription factors such as T-bet, GATA-3, promyelocytic leukemia zinc finger and RORγt, a lineage differentiation model was proposed for NKT cell development. Currently, studies on NKT cells development present lineage differentiation model data in addition to the linear maturation model. In the perspective presented here, we discuss current knowledge relating to NKT cell developmental models and particularly focus on the approaches and strategies, some of which appear nebulous, used to define NKT cell developmental stages and subsets.
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Affiliation(s)
- Jihene Klibi
- INSERM, UMR-1160, Institut de Recherche St-Louis (IRSL), Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Ludivine Amable
- INSERM, UMR-1160, Institut de Recherche St-Louis (IRSL), Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Kamel Benlagha
- INSERM, UMR-1160, Institut de Recherche St-Louis (IRSL), Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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27
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Hassane M, Jouan Y, Creusat F, Soulard D, Boisseau C, Gonzalez L, Patin EC, Heuzé-Vourc'h N, Sirard JC, Faveeuw C, Trottein F, Si-Tahar M, Baranek T, Paget C. Interleukin-7 protects against bacterial respiratory infection by promoting IL-17A-producing innate T-cell response. Mucosal Immunol 2020; 13:128-139. [PMID: 31628425 DOI: 10.1038/s41385-019-0212-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/24/2019] [Accepted: 09/28/2019] [Indexed: 02/07/2023]
Abstract
Interleukin-7 (IL-7) is a critical cytokine in B- and T-lymphocyte development and maturation. Recent evidence suggests that IL-7 is a preferential homeostatic and survival factor for RORγt+ innate T cells such as natural killer T (NKT) cells, γδT cells, and mucosal-associated invariant T (MAIT) cells in the periphery. Given the important contribution of these populations in antibacterial immunity at barrier sites, we questioned whether IL-7 could be instrumental in boosting the local host immune response against respiratory bacterial infection. By using a cytokine-monoclonal antibody approach, we illustrated a role for topical IL-7 delivery in increasing the pool of RORγt+ IL-17A-producing innate T cells. Prophylactic IL-7 treatment prior to Streptococcus pneumoniae infection led to better bacterial containment, a process associated with increased neutrophilia and that depended on γδT cells and IL-17A. Last, combined delivery of IL-7 and α-galactosylceramide (α-GalCer), a potent agonist for invariant NKT (iNKT) cells, conferred an almost total protection in terms of survival, an effect associated with enhanced IL-17 production by innate T cells and neutrophilia. Collectively, we provide a proof of concept that IL-7 enables fine-tuning of innate T- cell functions. This might pave the way for considering IL-7 as an innovative biotherapeutic against bacterial infection.
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Affiliation(s)
- Maya Hassane
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France
| | - Youenn Jouan
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France.,Service de Médecine Intensive et Réanimation, Centre Hospitalier Régional Universitaire, Tours, France
| | - Florent Creusat
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Daphnée Soulard
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France
| | - Chloé Boisseau
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Loïc Gonzalez
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Emmanuel C Patin
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France
| | - Nathalie Heuzé-Vourc'h
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Jean-Claude Sirard
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France
| | - Christelle Faveeuw
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France
| | - François Trottein
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France
| | - Mustapha Si-Tahar
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Thomas Baranek
- INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France.,Université de Tours, Faculté de Médecine de Tours, Tours, France
| | - Christophe Paget
- Centre d'Infection et d'Immunité de Lille, Inserm U1019, CNRS UMR 8204, University of Lille, CHU Lille- Institut Pasteur de Lille, 59000, Lille, France. .,INSERM, Centre d'Etude des Pathologies Respiratoires (CEPR), UMR, 1100, Tours, France. .,Université de Tours, Faculté de Médecine de Tours, Tours, France.
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28
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McGinty JW, von Moltke J. A three course menu for ILC and bystander T cell activation. Curr Opin Immunol 2019; 62:15-21. [PMID: 31830683 DOI: 10.1016/j.coi.2019.11.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/11/2019] [Indexed: 02/06/2023]
Abstract
The varied list of agonists that activate innate lymphoid cells (ILCs) continues to grow, but whether and how these signals interact is not well defined, especially in vivo. ILC subsets share master transcription factors, chromatin landscapes, and effector cytokines with their corresponding T helper (Th) cell subsets. Here we discuss how studies of these two cell types can inform each other. Specifically, we outline a framework in which ILC agonists are grouped by the transcription factors they activate. Optimal ILC activation requires at least three items from a 'menu' of non-redundant signals that collectively replicate the STAT and TCR signaling that drives effector Th cell function. This conceptual model may also apply to TCR-independent 'bystander' activation of Th cells.
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Affiliation(s)
- John W McGinty
- Department of Immunology, University of Washington School of Medicine, Seattle, WA, 98109, USA
| | - Jakob von Moltke
- Department of Immunology, University of Washington School of Medicine, Seattle, WA, 98109, USA.
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29
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Abstract
Invariant natural killer T cells (iNKT cells) are an innate-like T cell subset that expresses an invariant T cell receptor (TCR) α-chain and recognizes lipids presented on CD1d. They secrete diverse cytokines and can influence many types of immune responses. Despite having highly similar TCR specificities, iNKT cells differentiate in the thymus into distinct subsets that are analogous to T helper 1 (TH1), TH2 and TH17 cell subsets. Additional iNKT cell subsets that may require peripheral activation have also been described, including one that produces IL-10. In general, iNKT cells are non-circulating, tissue-resident lymphocytes, but the prevalence of different iNKT cell subsets differs markedly between tissues. Here, we summarize the functions of iNKT cells in four tissues in which they are prevalent, namely, the liver, the lungs, adipose tissue and the intestine. Importantly, we explain how local iNKT cell responses at each site contribute to tissue homeostasis and protection from infection but can also contribute to tissue inflammation and damage.
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30
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Shahid A, Bharadwaj M. The connection between the Th17 cell related cytokines and cancer stem cells in cancer: Novel therapeutic targets. Immunol Lett 2019; 213:9-20. [PMID: 31278971 DOI: 10.1016/j.imlet.2019.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/25/2019] [Accepted: 07/02/2019] [Indexed: 02/08/2023]
Abstract
Cancer Stem Cells (CSCs) are the subpopulation of cells present in the different types of cancers with capabilities of self-renewal, differentiation, and tumorigenicity when transplanted into an animal host. The research work on the CSC has been providing a promising approach for the improvement of cancer therapies in the future. The CSCs have a close connection with the cytokines related with the T helper 17 (Th17) cell and other factors present in the tumor microenvironment, and these play a pivotal role in tumor progression and metastasis. The properties of CSCs are well defined in various type of tumor which is mainly developed by chemically and spontaneously in murine cancer model but in human defined primarily on acute myeloid leukemia, glioma, and breast cancer. The role of Th1, Th2, Natural Killer cells are well described in the cancer biology, but the Th17 cells are the subset which is recently exploited, and lots of research are going on. In this Review, we summarize current findings of the characteristics and functions of the Th17 cell and its signature cytokines in different cancers and their interconnections with cancer stem cells and with their markers. We have also discussed the functional properties of CSCs and how the CSCs markers can be distinguished from normal stem cells markers. We have also talked about the strategies that are efficiently targeting of CSCs and Th17 cells in different cancers.
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Affiliation(s)
- Ayaz Shahid
- Molecular Biology Group, National Institute of Cancer Prevention and Research, Indian Council of Medical Research (ICMR), Department of Health Research, Noida, 201301, India
| | - Mausumi Bharadwaj
- Molecular Biology Group, National Institute of Cancer Prevention and Research, Indian Council of Medical Research (ICMR), Department of Health Research, Noida, 201301, India.
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31
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SapM mutation to improve the BCG vaccine: Genomic, transcriptomic and preclinical safety characterization. Vaccine 2019; 37:3539-3551. [PMID: 31122861 DOI: 10.1016/j.vaccine.2019.05.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/04/2019] [Accepted: 05/09/2019] [Indexed: 11/23/2022]
Abstract
The Mycobacterium bovis Bacille Calmette Guérin (BCG) vaccine shows variable efficacy in protection against adult tuberculosis (TB). Earlier, we have described a BCG mutant vaccine with a transposon insertion in the gene coding for the secreted acid phosphatase SapM, which led to enhanced long-term survival of vaccinated mice challenged with TB infection. To facilitate development of this mutation as part of a future improved live attenuated TB vaccine, we have now characterized the genome and transcriptome of this sapM::Tn mutant versus parental BCG Pasteur. Furthermore, we show that the sapM::Tn mutant had an equal low pathogenicity as WT BCG upon intravenous administration to immunocompromised SCID mice, passing this important safety test. Subsequently, we investigated the clearance of this improved vaccine strain following vaccination and found a more effective innate immune control over the sapM::Tn vaccine bacteria as compared to WT BCG. This leads to a fast contraction of IFNγ producing Th1 and Tc1 cells after sapM::Tn BCG vaccination. These findings corroborate that a live attenuated vaccine that affords improved long-term survival upon TB infection can be obtained by a mutation that further attenuates BCG. These findings suggest that an analysis of the effectiveness of innate immune control of the vaccine bacteria could be instructive also for other live attenuated TB vaccines that are currently under development, and encourage further studies of SapM mutation as a strategy in developing a more protective live attenuated TB vaccine.
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Joseph C, Klibi J, Amable L, Comba L, Cascioferro A, Delord M, Parietti V, Lenoir C, Latour S, Lucas B, Viret C, Toubert A, Benlagha K. TCR density in early iNKT cell precursors regulates agonist selection and subset differentiation in mice. Eur J Immunol 2019; 49:894-910. [DOI: 10.1002/eji.201848010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/27/2019] [Accepted: 03/21/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Claudine Joseph
- INSERM, UMR‐1160Institut Universitaire d'Hématologie Paris France
- Université Paris DiderotSorbonne Paris Cité Paris France
| | - Jihene Klibi
- INSERM, UMR‐1160Institut Universitaire d'Hématologie Paris France
- Université Paris DiderotSorbonne Paris Cité Paris France
| | - Ludivine Amable
- INSERM, UMR‐1160Institut Universitaire d'Hématologie Paris France
- Université Paris DiderotSorbonne Paris Cité Paris France
| | - Lorenzo Comba
- INSERM, UMR‐1160Institut Universitaire d'Hématologie Paris France
- Université Paris DiderotSorbonne Paris Cité Paris France
| | | | - Marc Delord
- Plateforme de Bio‐informatique et Bio statistiqueInstitut Universitaire d'HématologieUniversité Paris Diderot Sorbonne Paris Cité Paris France
| | - Veronique Parietti
- Département d'Expérimentation AnimaleInstitut Universitaire d'Hématologie Paris France
- Université Paris Diderot Sorbonne Paris Cité Paris France
| | - Christelle Lenoir
- Laboratory of Lymphocyte Activation and Susceptibility to EBV infection Paris France
- Imagine InstitutUniversité Paris Diderot Sorbonne Paris Cité Paris France
| | - Sylvain Latour
- Laboratory of Lymphocyte Activation and Susceptibility to EBV infection Paris France
- Imagine InstitutUniversité Paris Diderot Sorbonne Paris Cité Paris France
| | - Bruno Lucas
- Institut Cochin, Centre National de la Recherche Scientifique UMR8104, INSERM U1016Université Paris Descartes Paris France
| | - Christophe Viret
- CIRI, International Center for Infectiology ResearchUniversité de Lyon Lyon France
- INSERM U1111 Lyon France
- CNRS UMR5308 Lyon France
| | - Antoine Toubert
- INSERM, UMR‐1160Institut Universitaire d'Hématologie Paris France
- Université Paris DiderotSorbonne Paris Cité Paris France
| | - Kamel Benlagha
- INSERM, UMR‐1160Institut Universitaire d'Hématologie Paris France
- Université Paris DiderotSorbonne Paris Cité Paris France
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Wang H, Hogquist KA. CCR7 defines a precursor for murine iNKT cells in thymus and periphery. eLife 2018; 7:e34793. [PMID: 30102153 PMCID: PMC6115192 DOI: 10.7554/elife.34793] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 08/10/2018] [Indexed: 12/12/2022] Open
Abstract
The precise steps of iNKT subset differentiation in the thymus and periphery have been controversial. We demonstrate here that the small proportion of thymic iNKT and mucosal associated invariant T cells that express CCR7 represent a multi-potent progenitor pool that gives rise to effector subsets within the thymus. Using intra-thymic labeling, we also showed that CCR7+ iNKT cells emigrate from the thymus in a Klf2 dependent manner, and undergo further maturation after reaching the periphery. Ccr7 deficiency impaired differentiation of iNKT effector subsets and localization to the medulla. Parabiosis and intra-thymic transfer showed that thymic NKT1 and NKT17 were resident-they were not derived from and did not contribute to the peripheral pool. Finally, each thymic iNKT effector subset produces distinct factors that influence T cell development. Our findings demonstrate how the thymus is both a source of iNKT progenitors and a unique site of tissue dependent effector cell differentiation.
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Affiliation(s)
- Haiguang Wang
- The Department of Laboratory Medicine and Pathology, Center for ImmunologyUniversity of MinnesotaMinneapolisUnited States
| | - Kristin A Hogquist
- The Department of Laboratory Medicine and Pathology, Center for ImmunologyUniversity of MinnesotaMinneapolisUnited States
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Trottein F, Paget C. Natural Killer T Cells and Mucosal-Associated Invariant T Cells in Lung Infections. Front Immunol 2018; 9:1750. [PMID: 30116242 PMCID: PMC6082944 DOI: 10.3389/fimmu.2018.01750] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 07/16/2018] [Indexed: 12/13/2022] Open
Abstract
The immune system has been traditionally divided into two arms called innate and adaptive immunity. Typically, innate immunity refers to rapid defense mechanisms that set in motion within minutes to hours following an insult. Conversely, the adaptive immune response emerges after several days and relies on the innate immune response for its initiation and subsequent outcome. However, the recent discovery of immune cells displaying merged properties indicates that this distinction is not mutually exclusive. These populations that span the innate-adaptive border of immunity comprise, among others, CD1d-restricted natural killer T cells and MR1-restricted mucosal-associated invariant T cells. These cells have the unique ability to swiftly activate in response to non-peptidic antigens through their T cell receptor and/or to activating cytokines in order to modulate many aspects of the immune response. Despite they recirculate all through the body via the bloodstream, these cells mainly establish residency at barrier sites including lungs. Here, we discuss the current knowledge into the biology of these cells during lung (viral and bacterial) infections including activation mechanisms and functions. We also discuss future strategies targeting these cell types to optimize immune responses against respiratory pathogens.
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Affiliation(s)
- François Trottein
- Univ. Lille, U1019 – UMR 8204 – CIIL – Centre d’Infection et d’Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Christophe Paget
- Institut National de la Santé et de la Recherche Médicale U1100, Centre d’Etude des Pathologies Respiratoires (CEPR), Tours, France
- Université de Tours, Tours, France
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De Giorgi L, Sorini C, Cosorich I, Ferrarese R, Canducci F, Falcone M. Increased iNKT17 Cell Frequency in the Intestine of Non-Obese Diabetic Mice Correlates With High Bacterioidales and Low Clostridiales Abundance. Front Immunol 2018; 9:1752. [PMID: 30105027 PMCID: PMC6077215 DOI: 10.3389/fimmu.2018.01752] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/16/2018] [Indexed: 11/17/2022] Open
Abstract
iNKT cells play different immune function depending on their cytokine-secretion phenotype. iNKT17 cells predominantly secrete IL-17 and have an effector and pathogenic role in the pathogenesis of autoimmune diseases such as type 1 diabetes (T1D). In line with this notion, non-obese diabetic (NOD) mice that spontaneously develop T1D have an increased percentage of iNKT17 cells compared to non-autoimmune strains of mice. The factors that regulate iNKT cell expansion and acquisition of a specific iNKT17 cell phenotype are unclear. Here, we demonstrate that the percentage of iNKT17 cells is increased in the gut more than peripheral lymphoid organs of NOD mice, thus suggesting that the intestinal environment promotes iNKT17 cell differentiation in these mice. Increased intestinal iNKT17 cell differentiation in NOD mice is associated with the presence of pro-inflammatory IL-6-secreting dendritic cells that could contribute to iNKT cell expansion and iNKT17 cell differentiation. In addition, we found that increased iNKT17 cell differentiation in the large intestine of NOD mice is associated with a specific gut microbiota profile. We demonstrated a positive correlation between percentage of intestinal iNKT17 cells and bacterial strain richness (α-diversity) and relative abundance of Bacterioidales strains. On the contrary, the relative abundance of the anti-inflammatory Clostridiales strains negatively correlates with the intestinal iNKT17 cell frequency. Considering that iNKT17 cells play a key pathogenic role in T1D, our data support the notion that modulation of iNKT17 cell differentiation through gut microbiota changes could have a beneficial effect in T1D.
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Affiliation(s)
- Lorena De Giorgi
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Chiara Sorini
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - Ilaria Cosorich
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrarese
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Filippo Canducci
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Marika Falcone
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
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36
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Lezmi G, Leite-de-Moraes M. Invariant Natural Killer T and Mucosal-Associated Invariant T Cells in Asthmatic Patients. Front Immunol 2018; 9:1766. [PMID: 30105031 PMCID: PMC6077286 DOI: 10.3389/fimmu.2018.01766] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 07/17/2018] [Indexed: 12/20/2022] Open
Abstract
Recent studies have highlighted the heterogeneity of asthma. Distinct patient phenotypes (symptoms, age at onset, atopy, and lung function) may result from different pathogenic mechanisms, including airway inflammation, remodeling, and immune and metabolic pathways in a specific microbial environment. These features, which define the asthma endotype, may have significant consequences for the development and progression of the disease. Asthma is generally associated with Th2 cells, which produce a panel of cytokines (IL-4, IL-5, IL-13) that act in synergy to drive lung inflammatory responses, mucus secretion, IgE production, and fibrosis, causing the characteristic symptoms of asthma. In addition to conventional CD4+ T lymphocytes, other T-cell types can produce Th2 or Th17 cytokines rapidly. Promising candidate cells for studies of the mechanisms underlying the pathophysiology of asthma are unconventional T lymphocytes, such as invariant natural killer T (iNKT) and mucosal-associated invariant T (MAIT) cells. This review provides an overview of our current understanding of the impact of iNKT and MAIT cells on asthmatic inflammation, focusing particularly on pediatric asthma.
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Affiliation(s)
- Guillaume Lezmi
- AP-HP, Hôpital Necker-Enfants Malades, Service de Pneumologie et d'Allergologie Pédiatriques, Paris, France.,Université Paris Descartes, Paris, France.,Laboratory of Immunoregulation and Immunopathology, INEM (Institut Necker-Enfants Malades), CNRS UMR8253 and INSERM UMR1151, Paris, France
| | - Maria Leite-de-Moraes
- Université Paris Descartes, Paris, France.,Laboratory of Immunoregulation and Immunopathology, INEM (Institut Necker-Enfants Malades), CNRS UMR8253 and INSERM UMR1151, Paris, France
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37
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Hapil FZ, Wingender G. The interaction between invariant Natural Killer T cells and the mucosal microbiota. Immunology 2018; 155:164-175. [PMID: 29893412 DOI: 10.1111/imm.12958] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 05/21/2018] [Indexed: 02/06/2023] Open
Abstract
The surface of mammalian bodies is colonized by a multitude of microbial organisms, which under normal conditions support the host and are considered beneficial commensals. This requires, however, that the composition of the commensal microbiota is tightly controlled and regulated. The host immune system plays an important role in the maintenance of this microbiota composition. Here we focus on the contribution of one particular immune cell type, invariant Natural Killer T (iNKT) cells, in this process. The iNKT cells are a unique subset of T cells characterized by two main features. First, they express an invariant T-cell receptor that recognizes glycolipid antigens presented by CD1d, a non-polymorphic major histocompatibility complex class I-like molecule. Second, iNKT cells develop as effector/memory cells and swiftly exert effector functions, like cytokine production and cytotoxicity, after activation. We outline the influence that the mucosal microbiota can have on iNKT cells, and how iNKT cells contribute to the maintenance of the microbiota composition.
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Affiliation(s)
| | - Gerhard Wingender
- Izmir Biomedicine and Genome Center, Balcova/Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Balcova/Izmir, Turkey
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38
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St Leger AJ, Hansen AM, Karauzum H, Horai R, Yu CR, Laurence A, Mayer-Barber KD, Silver P, Villasmil R, Egwuagu C, Datta SK, Caspi RR. STAT-3-independent production of IL-17 by mouse innate-like αβ T cells controls ocular infection. J Exp Med 2018; 215:1079-1090. [PMID: 29490936 PMCID: PMC5881461 DOI: 10.1084/jem.20170369] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 11/30/2017] [Accepted: 02/07/2018] [Indexed: 01/03/2023] Open
Abstract
St. Leger et al. identify and examine innate-like αβ T cells that circumvent canonical STAT-3 phosphorylation to produce protective IL-17. These cells can exist in the ocular mucosa and protect the ocular surface from pathogenic Staphylococcus aureus infection. Appropriate regulation of IL-17 production in the host can mean the difference between effective control of pathogens and uncontrolled inflammation that causes tissue damage. Investigation of conventional CD4+ T cells (Th17 cells) has yielded invaluable insights into IL-17 function and its regulation. More recently, we and others reported production of IL-17 from innate αβ+ T cell populations, which was shown to occur primarily via IL-23R signaling through the transcription factor STAT-3. In our current study, we identify promyelocytic leukemia zinc finger (PLZF)–expressing iNKT, CD4−/CD8+, and CD4−/CD8− (DN) αβ+T cells, which produce IL-17 in response to TCR and IL-1 receptor ligation independently of STAT-3 signaling. Notably, this noncanonical pathway of IL-17 production may be important in mucosal defense and is by itself sufficient to control pathogenic Staphylococcus aureus infection at the ocular surface.
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Affiliation(s)
- Anthony J St Leger
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Anna M Hansen
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Hatice Karauzum
- Laboratory of Clinical Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Reiko Horai
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Cheng-Rong Yu
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Arian Laurence
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Katrin D Mayer-Barber
- Laboratory of Clinical Immunology and Microbiology, Inflammation and Innate Immunity, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Phyllis Silver
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Rafael Villasmil
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Charles Egwuagu
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Sandip K Datta
- Laboratory of Clinical Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Rachel R Caspi
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD
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Shabgah AG, Navashenaq JG, Shabgah OG, Mohammadi H, Sahebkar A. Interleukin-22 in human inflammatory diseases and viral infections. Autoimmun Rev 2017; 16:1209-1218. [PMID: 29037907 DOI: 10.1016/j.autrev.2017.10.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 08/08/2017] [Indexed: 12/24/2022]
Abstract
Interleukin-22 (IL22) is one of the members of IL10 family. Elevated levels of this cytokine can be seen in diseases caused by T lymphocytes, such as Psoriasis, Rheumatoid arthritis, interstitial lung diseases. IL22 is produced by different cells in both innate and acquired immunities. Different types of T cells are able to produce IL22, but the major IL22-producing T-cell is the TCD4. TH22 cell is a new line of TCD4 cells, which differentiated from naive T cells in the presence of TNFα and IL6; 50% of peripheral blood IL22 is produced by these cells. IL22 has important functions in host defense at mucosal surfaces as well as in tissue repair. In this review, we assess the current understanding of this cytokine and focus on the possible roles of IL-22 in autoimmune diseases.
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Affiliation(s)
- Arezoo Gowhari Shabgah
- Immunology Research Center, Avicenna Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Blood Borne Infections Research Center, AcademicCenter for Education, Culture and Research (ACECR), Razavi Khorasan Branch,Mashhad, Iran
| | - Jamshid Gholizadeh Navashenaq
- Immunology Research Center, Avicenna Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Omid Gohari Shabgah
- Parasitology Department, Medical sciencesfaculty, Tarbiat Modares University, Tehran, Iran
| | - Hamed Mohammadi
- ImmunologyResearch Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Sahebkar
- BiotechnologyResearch Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Abstract
Safe and efficacious vaccines are arguably the most successful medical interventions of all time. Yet the ongoing discovery of new pathogens, along with emergence of antibiotic-resistant pathogens and a burgeoning population at risk of such infections, imposes unprecedented public health challenges. To meet these challenges, innovative strategies to discover and develop new or improved anti-infective vaccines are necessary. These approaches must intersect the most meaningful insights into protective immunity and advanced technologies with capabilities to deliver immunogens for optimal immune protection. This goal is considered through several recent advances in host-pathogen relationships, conceptual strides in vaccinology, and emerging technologies. Given a clear and growing risk of pandemic disease should the threat of infection go unmet, developing vaccines that optimize protective immunity against high-priority and antibiotic-resistant pathogens represents an urgent and unifying imperative.
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Affiliation(s)
- Michael R Yeaman
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90024.,Division of Molecular Medicine, Department of Medicine, Harbor-UCLA Medical Center, Torrance, California 90509; .,Division of Infectious Diseases, Department of Medicine, Harbor-UCLA Medical Center, Torrance, California 90509.,Los Angeles Biomedical Research Institute, Torrance, California 90502
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Li P, Xu Z, Sun X, Yin Y, Fan Y, Zhao J, Mao X, Huang J, Yang F, Zhu L. Transcript profiling of the immunological interactions between Actinobacillus pleuropneumoniae serotype 7 and the host by dual RNA-seq. BMC Microbiol 2017; 17:193. [PMID: 28899359 PMCID: PMC5596872 DOI: 10.1186/s12866-017-1105-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 09/05/2017] [Indexed: 02/08/2023] Open
Abstract
Background The complexity of the pathogenic mechanism underlying the host immune response to Actinobacillus pleuropneumonia (App) makes the use of preventive measures difficult, and a more global view of the host-pathogen interactions and new insights into this process are urgently needed to reveal the pathogenic and immune mechanisms underlying App infection. Here, we infected specific pathogen-free Mus musculus with App serotype 7 by intranasal inoculation to construct an acute hemorrhagic pneumonia infection model and isolated the infected lungs for analysis of the interactions by dual RNA-seq. Results Four cDNA libraries were constructed, and 2428 differentially expressed genes (DEGs) of the host and 333 DEGs of App were detected. The host DEGs were mainly enriched in inflammatory signaling pathways, such as the TLR, NLR, RLR, BCR and TCR signaling pathways, resulting in large-scale cytokine up-regulation and thereby yielding a cytokine cascade for anti-infection and lung damage. The majority of the up-regulated cytokines are involved in the IL-23/IL-17 cytokine-regulated network, which is crucial for host defense against bacterial infection. The DEGs of App were mainly related to the transport and metabolism of energy and materials. Most of these genes are metabolic genes involved in anaerobic metabolism and important for challenging the host and adapting to the anaerobic stress conditions observed in acute hemorrhagic pneumonia. Some of these genes, such as adhE, dmsA, and aspA, might be potential virulence genes. In addition, the up-regulation of genes associated with peptidoglycan and urease synthesis and the restriction of major virulence genes might be immune evasion strategies of App. The regulation of metabolic genes and major virulence genes indicate that the dominant antigens might differ during the infection process and that vaccines based on these antigens might allow establishment of a precise and targeted immune response during the early phase of infection. Conclusion Through an analysis of transcriptional data by dual RNA-seq, our study presents a novel global view of the interactions of App with its host and provides a basis for further study. Electronic supplementary material The online version of this article (10.1186/s12866-017-1105-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ping Li
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Zhiwen Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Xiangang Sun
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China
| | - Yue Yin
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Yi Fan
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Jun Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Xiyu Mao
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Jianbo Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Fan Yang
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China.,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Ling Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road 211, Weenjiang District, Chengdu, Sichuan, China. .,Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, Sichuan, China.
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42
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Bekeredjian-Ding I. Deciphering the significance of the T-cell response to Staphylococcus aureus. Future Microbiol 2017; 12:1023-1026. [DOI: 10.2217/fmb-2017-0138] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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43
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Ponce-Gallegos MA, Ramírez-Venegas A, Falfán-Valencia R. Th17 profile in COPD exacerbations. Int J Chron Obstruct Pulmon Dis 2017; 12:1857-1865. [PMID: 28694696 PMCID: PMC5491572 DOI: 10.2147/copd.s136592] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
COPD is characterized by an ongoing inflammatory process of the airways that leads to obstruction or limitation of airflow. It is mainly associated with exposure to cigarette smoke. In addition, it is considered, at present, a serious public health problem, ranking fourth in mortality worldwide. Many cells participate in the pathophysiology of COPD, the most important are neutrophils, macrophages and CD4+ and CD8+ T cells. Neutrophil migration to the inflammation area could be mediated largely by cytokines related to CD4+ Th17 lymphocytes, because it has been shown that IL-17A, IL-17F and IL-22 act as inducers for CXCL8, CXCL1, CXCL5, G-CSF, and GM-CSF secretion by epithelial cells of the airways. The aims of these molecules are differentiation, proliferation and recruitment of neutrophils. Furthermore, it is believed that CD4+ lymphocytes Th17 may be involved in protection against pathogens for which Th1 and Th2 are not prepared to fight. In COPD exacerbations, there is an increased cellularity in the lung region and respiratory tract. Therefore, the increase in the number of neutrophils and macrophages in the airways and the increase in proinflammatory cytokines are directly related to the severity of exacerbations and that is the importance of the functions of Th17 profile in this entity.
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Affiliation(s)
- Marco Antonio Ponce-Gallegos
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico.,Medicine Academic Unit, Universidad Autónoma de Nayarit. Tepic, Nayarit, Mexico.,Interinstitutional Program for Strengthening Research and the Postgraduate in the Pacific (Dolphin), Tepic, Nayarit, México
| | - Alejandra Ramírez-Venegas
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Ramcés Falfán-Valencia
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
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Jaiswal AK, Sadasivam M, Hamad ARA. Syndecan-1-coating of interleukin-17-producing natural killer T cells provides a specific method for their visualization and analysis. World J Diabetes 2017; 8:130-134. [PMID: 28465789 PMCID: PMC5394732 DOI: 10.4239/wjd.v8.i4.130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/27/2017] [Accepted: 02/20/2017] [Indexed: 02/05/2023] Open
Abstract
Natural killer T cells (NKT cells) are innate-like T cells that acquire effector functions while developing in the thymus, polarize into three distinct functional subsets viz. NKT1, NKT2 and NKT17 cells that produce interferon (IFN)-γ, interleukin (IL)-4 and IL-17, respectively. However, there has been no unique surface markers that define each subsets, forcing investigators to use intracellular staining of transcription factors and cytokines in combination of surface markers to distinguish among these subsets. Intracellular staining, however, causes apoptosis and prevents subsequent utilization of NKT cells in functional in vitro and in vivo assays that require viable cells. This limitation has significantly impeded understanding the specific properties of each subset and their interactions with each other. Therefore, there has been fervent efforts to find a specific markers for each NKT cell subset. We have recently identified that syndecan-1 (SDC-1; CD138) as a specific surface marker of NKT17 cells. This discovery now allows visualization of NKT17 in situ and study of their peripheral tissue distribution, characteristics of their TCR and viable sorting for in vitro and in vivo analysis. In addition, it lays the ground working for investigating significance of SDC-1 expression on this particular subset in regulating their roles in host defense and glucose metabolism.
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45
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Sklarz T, Guan P, Gohil M, Cotton RM, Ge MQ, Haczku A, Das R, Jordan MS. mTORC2 regulates multiple aspects of NKT-cell development and function. Eur J Immunol 2017; 47:516-526. [PMID: 28078715 DOI: 10.1002/eji.201646343] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 11/29/2016] [Accepted: 01/10/2017] [Indexed: 11/11/2022]
Abstract
Invariant NKT (iNKT) cells bridge innate and adaptive immunity by rapidly secreting cytokines and lysing targets following TCR recognition of lipid antigens. Based on their ability to secrete IFN-γ, IL-4 and IL-17A, iNKT-cells are classified as NKT-1, NKT-2, and NKT-17 subsets, respectively. The molecular pathways regulating iNKT-cell fate are not fully defined. Recent studies implicate Rictor, a required component of mTORC2, in the development of select iNKT-cell subsets, however these reports are conflicting. To resolve these questions, we used Rictorfl/fl CD4cre+ mice and found that Rictor is required for NKT-17 cell development and normal iNKT-cell cytolytic function. Conversely, Rictor is not absolutely required for IL-4 and IFN-γ production as peripheral iNKT-cells make copious amounts of these cytokines. Overall iNKT-cell numbers are dramatically reduced in the absence of Rictor. We provide data indicating Rictor regulates cell survival as well as proliferation of developing and mature iNKT-cells. Thus, mTORC2 regulates multiple aspects of iNKT-cell development and function.
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Affiliation(s)
- Tammarah Sklarz
- Abramson Family Cancer Research Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Peng Guan
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Mercy Gohil
- Abramson Family Cancer Research Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Renee M Cotton
- Abramson Family Cancer Research Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Moyar Q Ge
- Department of Medicine, University of California at Davis, Davis, CA, USA
| | - Angela Haczku
- Department of Medicine, University of California at Davis, Davis, CA, USA
| | - Rupali Das
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Martha S Jordan
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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46
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Valeri M, Raffatellu M. Cytokines IL-17 and IL-22 in the host response to infection. Pathog Dis 2016; 74:ftw111. [PMID: 27915228 PMCID: PMC5975231 DOI: 10.1093/femspd/ftw111] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 09/13/2016] [Accepted: 11/17/2016] [Indexed: 12/12/2022] Open
Abstract
Cytokines IL-17 and IL-22 play pivotal roles in host defense against microbes and in the development of chronic inflammatory diseases. These cytokines are produced by cells that are often located in epithelial barriers, including subsets of T cells and innate lymphoid cells. In general, IL-17 and IL-22 can be characterized as important cytokines in the rapid response to infectious agents, both by recruiting neutrophils and by inducing the production of antimicrobial peptides. Although each cytokine induces an innate immune response in epithelial cells, their functional spectra are generally distinct: IL-17 mainly induces an inflammatory tissue response and is involved in the pathogenesis of several autoimmune diseases, whereas IL-22 is largely protective and regenerative. In this review, we compare IL-17 and IL-22, describing overlaps and differences in their cellular sources as well as their regulation, signaling, biological functions and roles during disease, with a focus on the contribution of these cytokines to the gut mucosal barrier during bacterial infection.
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Affiliation(s)
- Maria Valeri
- Department of Microbiology and Molecular Genetics, University of California Irvine School of Medicine, Irvine, CA 92697-4025, USA
- Institute for Immunology, University of California Irvine School of Medicine, Irvine, CA 92697-4025, USA
| | - Manuela Raffatellu
- Department of Microbiology and Molecular Genetics, University of California Irvine School of Medicine, Irvine, CA 92697-4025, USA
- Institute for Immunology, University of California Irvine School of Medicine, Irvine, CA 92697-4025, USA
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47
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Di Pietro C, De Giorgi L, Cosorich I, Sorini C, Fedeli M, Falcone M. MicroRNA-133b Regulation of Th-POK Expression and Dendritic Cell Signals Affect NKT17 Cell Differentiation in the Thymus. THE JOURNAL OF IMMUNOLOGY 2016; 197:3271-3280. [PMID: 27605013 DOI: 10.4049/jimmunol.1502238] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 08/09/2016] [Indexed: 12/11/2022]
Abstract
NKT17 cells represent a functional subset of Vα14 invariant NKT (iNKT) cells with important effector functions in infections and autoimmune diseases. The mechanisms that drive NKT17 cell differentiation in the thymus are still largely unknown. The percentage of NKT17 cells has a high variability between murine strains due to differential thymic differentiation. For example, the NOD strain carries a high percentage and absolute numbers of NKT17 cells compared with other strains. In this study, we used the NOD mouse model to analyze what regulates NKT17 cell frequency in the thymus and peripheral lymphoid organs. In accordance with previous studies showing that the zinc finger transcription factor Th-POK is a key negative regulator of thymic NKT17 cell differentiation in the thymus, our data indicate that excessive NKT17 cell frequency in NOD mice correlates with defective Th-POK expression by thymic Vα14iNKT cells. Moreover, we found that Th-POK expression is under epigenetic regulation mediated by microRNA-133b whose expression is reduced in Vα14iNKT cells of NOD mice. We also demonstrated in a conditional knockout model of dendritic cell (DC) depletion (CD11cCreXDTA.B6 and CD11cCreRosa26DTA.NOD mice) that DCs play a crucial role in regulating Vα14iNKT cell maturation and their acquisition of an NKT17 cytokine secretion phenotype in the thymus. Overall, our data show that mechanisms regulating NKT17 cell differentiation are unique and completely different from those of Vα14iNKT cells. Specifically, we found that epigenetic regulation through microRNA-133b-regulated Th-POK expression and signals provided by DCs are fundamental for thymic NKT17 cell differentiation.
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Affiliation(s)
- Caterina Di Pietro
- Experimental Diabetes Unit-Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, 20132 Milan, Italy; and
| | - Lorena De Giorgi
- Experimental Diabetes Unit-Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, 20132 Milan, Italy; and
| | - Ilaria Cosorich
- Experimental Diabetes Unit-Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, 20132 Milan, Italy; and
| | - Chiara Sorini
- Experimental Diabetes Unit-Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, 20132 Milan, Italy; and
| | - Maya Fedeli
- Experimental Immunology Unit, Division of Immunology, Transplantation, and Infectious Diseases, Institute for Research, Hospitalization, and Health Care, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Marika Falcone
- Experimental Diabetes Unit-Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, 20132 Milan, Italy; and
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48
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Kohlgruber AC, Donado CA, LaMarche NM, Brenner MB, Brennan PJ. Activation strategies for invariant natural killer T cells. Immunogenetics 2016; 68:649-63. [PMID: 27457886 PMCID: PMC5745583 DOI: 10.1007/s00251-016-0944-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 07/15/2016] [Indexed: 12/17/2022]
Abstract
Invariant natural killer T (iNKT) cells are a specialized T cell subset that plays an important role in host defense, orchestrating both innate and adaptive immune effector responses against a variety of microbes. Specific microbial lipids and mammalian self lipids displayed by the antigen-presenting molecule CD1d can activate iNKT cells through their semi-invariant αβ T cell receptors (TCRs). iNKT cells also constitutively express receptors for inflammatory cytokines typically secreted by antigen-presenting cells (APCs) after recognition of pathogen-associated molecular patterns (PAMPs), and they can be activated through these cytokine receptors either in combination with TCR signals, or in some cases even in the absence of TCR signaling. During infection, experimental evidence suggests that both TCR-driven and cytokine-driven mechanisms contribute to iNKT cell activation. While the relative contributions of these two signaling mechanisms can vary widely depending on the infectious context, both lipid antigens and PAMPs mediate reciprocal activation of iNKT cells and APCs, leading to downstream activation of multiple other immune cell types to promote pathogen clearance. In this review, we discuss the mechanisms involved in iNKT cell activation during infection, focusing on the central contributions of both lipid antigens and PAMP-induced inflammatory cytokines, and highlight in vivo examples of activation during bacterial, viral, and fungal infections.
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Affiliation(s)
- Ayano C Kohlgruber
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Carlos A Donado
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nelson M LaMarche
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael B Brenner
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Patrick J Brennan
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Michel ML, Lenoir C, Massot B, Diem S, Pasquier B, Sawa S, Rignault-Bricard R, Lehuen A, Eberl G, Veillette A, Leite-de-Moraes M, Latour S. SLAM-associated protein favors the development of iNKT2 over iNKT17 cells. Eur J Immunol 2016; 46:2162-74. [PMID: 27338553 DOI: 10.1002/eji.201646313] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 05/11/2016] [Accepted: 06/20/2016] [Indexed: 11/09/2022]
Abstract
Invariant NKT (iNKT) cells differentiate in the thymus into three distinct lineages defined by their cytokine and transcription factor expression. Signaling lymphocyte activation molecule (SLAM)-associated protein (SAP) is essential for early stages of iNKT cell development, but its role during terminal differentiation of iNKT1, iNKT2, or iNKT17 cells remains unclear. Taking advantage of SAP-deficient mice expressing a Vα14-Jα18 TCRα transgene, we found that SAP is critical not only for IL-4 production but also for the terminal differentiation of IL-4-producing iNKT2 cells. Furthermore, without SAP, the IL-17 producing subset is expanded, while IFN-γ-producing iNKT1 differentiation is only moderately compromised. Lack of SAP reduced the expression of the transcription factors GATA-3 and promyelocytic leukemia zinc finger, but enhanced the levels of retinoic acid receptor-related orphan receptor γt. In the absence of SAP, lineage commitment was actually shifted toward the emergence of iNKT17 over iNKT2 cells. Collectively, our data unveil a new critical regulatory function for SAP in thymic iNKT cell fate decisions.
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Affiliation(s)
- Marie-Laure Michel
- Laboratory of Immunoregulation and Immunopathology, Institut Necker-Enfants Malades, CNRS UMR 8253 and INSERM UMR 1151, Paris, France.,Université Paris Descartes Sorbonne Paris Cité, Paris, France
| | - Christelle Lenoir
- Laboratory of Lymphocyte Activation and EBV Susceptibility, INSERM UMR 1163, Institut des Maladies Génétiques, Hôpital Necker-Enfants Malades, Paris, France
| | - Bérangère Massot
- Laboratory of Immunoregulation and Immunopathology, Institut Necker-Enfants Malades, CNRS UMR 8253 and INSERM UMR 1151, Paris, France.,Université Paris Descartes Sorbonne Paris Cité, Paris, France
| | - Séverine Diem
- Laboratory of Immunoregulation and Immunopathology, Institut Necker-Enfants Malades, CNRS UMR 8253 and INSERM UMR 1151, Paris, France.,Université Paris Descartes Sorbonne Paris Cité, Paris, France
| | - Benoit Pasquier
- Laboratory of Lymphocyte Activation and EBV Susceptibility, INSERM UMR 1163, Institut des Maladies Génétiques, Hôpital Necker-Enfants Malades, Paris, France
| | - Shinichiro Sawa
- Lymphoid Tissue Development Unit, Institut Pasteur, Paris, France
| | - Rachel Rignault-Bricard
- Laboratory of Immunoregulation and Immunopathology, Institut Necker-Enfants Malades, CNRS UMR 8253 and INSERM UMR 1151, Paris, France.,Institut Imagine, Université Paris Descartes Sorbonne Paris Cité, Paris, France
| | - Agnès Lehuen
- Hôpital Cochin-St. Vincent de Paul, INSERM UMR 986, Paris, France
| | - Gérard Eberl
- Lymphoid Tissue Development Unit, Institut Pasteur, Paris, France
| | - André Veillette
- Laboratory of Molecular Oncology, Clinical Research Institute of Montréal, Québec, Canada
| | - Maria Leite-de-Moraes
- Laboratory of Immunoregulation and Immunopathology, Institut Necker-Enfants Malades, CNRS UMR 8253 and INSERM UMR 1151, Paris, France.,Université Paris Descartes Sorbonne Paris Cité, Paris, France
| | - Sylvain Latour
- Laboratory of Lymphocyte Activation and EBV Susceptibility, INSERM UMR 1163, Institut des Maladies Génétiques, Hôpital Necker-Enfants Malades, Paris, France. .,Institut Imagine, Université Paris Descartes Sorbonne Paris Cité, Paris, France.
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50
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Invariant natural killer T cells: front line fighters in the war against pathogenic microbes. Immunogenetics 2016; 68:639-48. [PMID: 27368411 DOI: 10.1007/s00251-016-0933-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 04/21/2016] [Indexed: 12/22/2022]
Abstract
Invariant natural killer T (iNKT) cells constitute a unique subset of innate-like T cells that have been shown to have crucial roles in a variety of immune responses. iNKT cells are characterized by their expression of both NK cell markers and an invariant T cell receptor (TCR) α chain, which recognizes glycolipids presented by the MHC class I-like molecule CD1d. Despite having a limited antigen repertoire, the iNKT cell response can be very complex, and participate in both protective and harmful immune responses. The protective role of these cells against a variety of pathogens has been particularly well documented. Through the use of these pathogen models, our knowledge of the breadth of the iNKT cell response has been expanded. Specific iNKT cell antigens have been isolated from several different bacteria, from which iNKT cells are critical for protection in mouse models. These responses can be generated by direct, CD1d-mediated activation, or indirect, cytokine-mediated activation, or a combination of the two. This can lead to secretion of a variety of different Th1, Th2, or Th17 cytokines, which differentially impact the downstream immune response against these pathogens. This critical role is emphasized by the conservation of these cells between mice and humans, warranting further investigation into how iNKT cells participate in protective immune responses, with the ultimate goal of harnessing their potential for treatment.
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