1
|
Kember RL, Vickers-Smith R, Zhou H, Xu H, Jennings M, Dao C, Davis L, Sanchez-Roige S, Justice AC, Gelernter J, Vujkovic M, Kranzler HR. Genetic Underpinnings of the Transition From Alcohol Consumption to Alcohol Use Disorder: Shared and Unique Genetic Architectures in a Cross-Ancestry Sample. Am J Psychiatry 2023; 180:584-593. [PMID: 37282553 PMCID: PMC10731616 DOI: 10.1176/appi.ajp.21090892] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE Recent genome-wide association studies (GWASs) of alcohol-related phenotypes have uncovered key differences in the underlying genetic architectures of alcohol consumption and alcohol use disorder (AUD), with the two traits having opposite genetic correlations with psychiatric disorders. Understanding the genetic factors that underlie the transition from heavy drinking to AUD has important theoretical and clinical implications. METHODS The authors used longitudinal data from the cross-ancestry Million Veteran Program sample to identify 1) novel loci associated with AUD and alcohol consumption (measured by the score on the consumption subscale of the Alcohol Use Disorders Identification Test [AUDIT-C]), 2) the impact of phenotypic variation on genetic discovery, and 3) genetic variants with direct effects on AUD that are not mediated through alcohol consumption. RESULTS The authors identified 26 loci associated with AUD and 22 loci associated with AUDIT-C score, including ancestry-specific and novel loci. In secondary GWASs that excluded individuals who report abstinence, the authors identified seven additional loci for AUD and eight additional loci for AUDIT-C score. Although the heterogeneity of the abstinent group biases the GWAS findings, unique variance between alcohol consumption and disorder remained after the abstinent group was excluded. Finally, using mediation analysis, the authors identified a set of variants with effects on AUD that are not mediated through alcohol consumption. CONCLUSIONS Differences in genetic architecture between alcohol consumption and AUD are consistent with their having different biological contributions. Genetic variants with direct effects on AUD are potentially relevant to understanding the transition from heavy alcohol consumption to AUD and may be targets for translational prevention and treatment efforts.
Collapse
Affiliation(s)
- Rachel L Kember
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Rachel Vickers-Smith
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Hang Zhou
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Heng Xu
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Mariela Jennings
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Cecilia Dao
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Lea Davis
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Sandra Sanchez-Roige
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Amy C Justice
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Joel Gelernter
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Marijana Vujkovic
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| | - Henry R Kranzler
- Mental Illness Research, Education, and Clinical Center, Veterans Integrated Service Network 4, Crescenz Veterans Affairs Medical Center, Philadelphia (Kember, Vickers-Smith, Kranzler); Center for Studies of Addiction, Department of Psychiatry (Kember, Xu, Kranzler) and Department of Epidemiology, University of Kentucky College of Public Health, Lexington (Vickers-Smith); Center on Drug and Alcohol Research, Department of Behavioral Science, University of Kentucky College of Medicine, Lexington (Vickers-Smith); VA Connecticut Healthcare System, West Haven (Zhou, Dao, Justice, Gelernter); Department of Psychiatry (Zhou, Gelernter), Department of Genetics (Gelernter), Department of Neuroscience (Gelernter), and Department of Internal Medicine (Justice), Yale School of Medicine, New Haven, Conn.; School of Public Health, Yale University, New Haven, Conn. (Dao, Justice); Department of Psychiatry, University of California San Diego, San Diego (Jennings, Sanchez-Roige); Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn. (Davis, Sanchez-Roige)
| |
Collapse
|
2
|
Fu Y, Tang R, Zhao X. Engineering cytokines for cancer immunotherapy: a systematic review. Front Immunol 2023; 14:1218082. [PMID: 37483629 PMCID: PMC10357296 DOI: 10.3389/fimmu.2023.1218082] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
Cytokines are pivotal mediators of cell communication in the tumor microenvironment. Multiple cytokines are involved in the host antitumor response, but the production and function of these cytokines are usually dysregulated during malignant tumor progression. Considering their clinical potential and the early successful use of cytokines in cancer immunotherapy, such as interferon alpha-2b (IFNα-2b; IntronA®) and IL-2 (Proleukin®), cytokine-based therapeutics have been extensively evaluated in many follow-up clinical trials. Following these initial breakthroughs, however, clinical translation of these natural messenger molecules has been greatly limited owing to their high-degree pleiotropic features and complex biological properties in many cell types. These characteristics, coupled with poor pharmacokinetics (a short half-life), have hampered the delivery of cytokines via systemic administration, particularly because of severe dose-limiting toxicities. New engineering approaches have been developed to widen the therapeutic window, prolong pharmacokinetic effects, enhance tumor targeting and reduce adverse effects, thereby improving therapeutic efficacy. In this review, we focus on the recent progress and competitive landscape in cytokine engineering strategies and preclinical/clinical therapeutics for cancer. In addition, aiming to promote engineered cytokine-based cancer immunotherapy, we present a profound discussion about the feasibility of recently developed methods in clinical medicine translation.
Collapse
Affiliation(s)
- Yong Fu
- State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Co., Ltd., Nanjing, China
- Jiangsu Simcere Pharmaceutical Co, Ltd., Nanjing, China
| | - Renhong Tang
- State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Co., Ltd., Nanjing, China
- Simcere Zaiming Pharmaceutical Co, Ltd., Nanjing, China
| | - Xiaofeng Zhao
- State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Co., Ltd., Nanjing, China
- Jiangsu Simcere Pharmaceutical Co, Ltd., Nanjing, China
| |
Collapse
|
3
|
Song EH, Xu M, Yang J, Xiao Y, Griffith AV, Xiong N. Delta-like 4-Derived Notch Signals Differentially Regulate Thymic Generation of Skin-Homing CCR10 +NK1.1 + Innate Lymphoid Cells at Neonatal and Adult Stages. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:950-959. [PMID: 35922065 PMCID: PMC9492633 DOI: 10.4049/jimmunol.2100870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 06/27/2022] [Indexed: 11/06/2022]
Abstract
The thymus is a primary lymphoid organ for T cell development. Increasing evidence found that the thymus is also an important site for development of innate lymphoid cells (ILCs). ILCs generated in thymi acquire unique homing properties that direct their localization into barrier tissues such as the skin and intestine, where they help local homeostasis. Mechanisms underlying the developmental programming of unique tissue-homing properties of ILCs are poorly understood. We report in this article that thymic stroma-derived Notch signaling is differentially involved in thymic generation of a population of NK1.1+ group 1 ILCs (ILC1s) with the CCR10+ skin-homing property in adult and neonatal mice. We found that thymic generation of CCR10+NK1.1+ ILC1s is increased in T cell-deficient mice at adult, but not neonatal, stages, supporting the notion that a large number of developing T cells interfere with signals required for generation of CCR10+NK1.1+ ILC1s. In an in vitro differentiation assay, increasing Notch signals promotes generation of CCR10+NK1.1+ ILC1s from hematopoietic progenitors. Knockout of the Notch ligand Delta-like 4 in thymic stroma impairs generation of CCR10+NK1.1+ ILC1s in adult thymi, but development of CCR10+NK1.1+ ILC1s in neonatal thymi is less dependent on Delta-like 4-derived Notch signals. Mechanistically, the Notch signaling is required for proper expression of the IL-7R CD127 on thymic NK1.1+ ILC1s, and deficiency of CD127 also impairs thymic generation of CCR10+NK1.1+ ILC1s at adult, but not perinatal, stages. Our findings advanced understanding of regulatory mechanisms of thymic innate lymphocyte development.
Collapse
Affiliation(s)
- Eun Hyeon Song
- The Molecular, Cellular, and Integrative Biosciences Graduate Program, Pennsylvania State University, University Park, PA
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center San Antonio, San Antonio, TX
| | - Ming Xu
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center San Antonio, San Antonio, TX
| | - Jie Yang
- The Molecular, Cellular, and Integrative Biosciences Graduate Program, Pennsylvania State University, University Park, PA
| | - Yangming Xiao
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center San Antonio, San Antonio, TX
| | - Ann V Griffith
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center San Antonio, San Antonio, TX
| | - Na Xiong
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center San Antonio, San Antonio, TX;
- Division of Dermatology and Cutaneous Surgery, Department of Medicine, University of Texas Health Science Center San Antonio, San Antonio, TX; and
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA
| |
Collapse
|
4
|
Kakouri AC, Votsi C, Oulas A, Nicolaou P, Aureli M, Lunghi G, Samarani M, Compagnoni GM, Salani S, Di Fonzo A, Christophides T, Tanteles GA, Zamba-Papanicolaou E, Pantzaris M, Spyrou GM, Christodoulou K. Transcriptomic characterization of tissues from patients and subsequent pathway analyses reveal biological pathways that are implicated in spastic ataxia. Cell Biosci 2022; 12:29. [PMID: 35277195 PMCID: PMC8917697 DOI: 10.1186/s13578-022-00754-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/04/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Spastic ataxias (SAs) encompass a group of rare and severe neurodegenerative diseases, characterized by an overlap between ataxia and spastic paraplegia clinical features. They have been associated with pathogenic variants in a number of genes, including GBA2. This gene codes for the non-lysososomal β-glucosylceramidase, which is involved in sphingolipid metabolism through its catalytic role in the degradation of glucosylceramide. However, the mechanism by which GBA2 variants lead to the development of SA is still unclear. METHODS In this work, we perform next-generation RNA-sequencing (RNA-seq), in an attempt to discover differentially expressed genes (DEGs) in lymphoblastoid, fibroblast cell lines and induced pluripotent stem cell-derived neurons derived from patients with SA, homozygous for the GBA2 c.1780G > C missense variant. We further exploit DEGs in pathway analyses in order to elucidate candidate molecular mechanisms that are implicated in the development of the GBA2 gene-associated SA. RESULTS Our data reveal a total of 5217 genes with significantly altered expression between patient and control tested tissues. Furthermore, the most significant extracted pathways are presented and discussed for their possible role in the pathogenesis of the disease. Among them are the oxidative stress, neuroinflammation, sphingolipid signaling and metabolism, PI3K-Akt and MAPK signaling pathways. CONCLUSIONS Overall, our work examines for the first time the transcriptome profiles of GBA2-associated SA patients and suggests pathways and pathway synergies that could possibly have a role in SA pathogenesis. Lastly, it provides a list of DEGs and pathways that could be further validated towards the discovery of disease biomarkers.
Collapse
Affiliation(s)
- Andrea C. Kakouri
- Department of Neurogenetics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- Department of Bioinformatics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Christina Votsi
- Department of Neurogenetics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Anastasis Oulas
- Department of Bioinformatics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Paschalis Nicolaou
- Department of Neurogenetics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Massimo Aureli
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20090 Milano, Italy
| | - Giulia Lunghi
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20090 Milano, Italy
| | - Maura Samarani
- Unité de Trafic Membranaire ét PathogénèseDépartement de Biologie Cellulaire et Infection, Institut Pasteur, 75015 Paris, France
| | - Giacomo M. Compagnoni
- Neurology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Milan Italy
| | - Sabrina Salani
- Neurology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Alessio Di Fonzo
- Neurology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | | | - George A. Tanteles
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- Department of Clinical Genetics and Genomics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Eleni Zamba-Papanicolaou
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- Neurology Clinic D, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Marios Pantzaris
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- Neurology Clinic C, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - George M. Spyrou
- Department of Bioinformatics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| | - Kyproula Christodoulou
- Department of Neurogenetics, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2370 Nicosia, Cyprus
| |
Collapse
|
5
|
Ikuta K, Hara T, Abe S, Asahi T, Takami D, Cui G. The Roles of IL-7 and IL-15 in Niches for Lymphocyte Progenitors and Immune Cells in Lymphoid Organs. Curr Top Microbiol Immunol 2021; 434:83-101. [PMID: 34850283 DOI: 10.1007/978-3-030-86016-5_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Lymphoid organs consist of immune cells and stromal cells. The stromal cells produce various cytokines that support the development, maintenance, and response of the immune cells. IL-7 and IL-15 are the major cytokines produced by stromal cells and are essential for the development and maintenance of lymphocytes and innate lymphoid cells (ILCs). In addition, IL-7 is indispensable for the organogenesis of lymphoid organs. However, because the amount of these two cytokines is relatively low, it has been difficult to directly detect their expression. Recently, several groups succeeded in establishing IL-7 and IL-15 reporter mouse lines. As expected, IL-7 and IL-15 were detected in mesenchymal stromal cells in the bone marrow and lymph nodes and in epithelial cells in the thymus. Furthermore, IL-7 and IL-15 were differentially expressed in lymphatic endothelial cells and blood endothelial cells, respectively. In addition to their expression, many groups have analyzed the local functions of IL-7 and IL-15 by using cell-type-specific knockout mice. From these experiments, CXCL12-expressing mesenchymal stromal cells were identified as the major niche for early B cell precursors. Single-cell RNA sequencing (scRNA-seq) analysis has revealed different subpopulations of stromal cells in the lymphoid organs, including those that express both IL-7 and IL-15. Future research is still needed to elucidate which stromal cells serve as the niche for the early precursors of ILCs and NK cells in the bone marrow.
Collapse
Affiliation(s)
- Koichi Ikuta
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan.
| | - Takahiro Hara
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Shinya Abe
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Takuma Asahi
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan.,Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Daichi Takami
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Guangwei Cui
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| |
Collapse
|
6
|
Kumar V. Innate Lymphoid Cells and Adaptive Immune Cells Cross-Talk: A Secret Talk Revealed in Immune Homeostasis and Different Inflammatory Conditions. Int Rev Immunol 2021; 40:217-251. [PMID: 33733998 DOI: 10.1080/08830185.2021.1895145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The inflammatory immune response has evolved to protect the host from different pathogens, allergens, and endogenous death or damage-associated molecular patterns. Both innate and adaptive immune components are crucial in inducing an inflammatory immune response depending on the stimulus type and its duration of exposure or the activation of the primary innate immune response. As the source of inflammation is removed, the aggravated immune response comes to its homeostatic level. However, the failure of the inflammatory immune response to subside to its normal level generates chronic inflammatory conditions, including autoimmune diseases and cancer. Innate lymphoid cells (ILCs) are newly discovered innate immune cells, which are present in abundance at mucosal surfaces, including lungs, gastrointestinal tract, and reproductive tract. Also, they are present in peripheral blood circulation, skin, and lymph nodes. They play a crucial role in generating the pro-inflammatory immune response during diverse conditions. On the other hand, adaptive immune cells, including different types of T and B cells are major players in the pathogenesis of autoimmune diseases (type 1 diabetes mellitus, rheumatoid arthritis, psoriasis, and systemic lupus erythematosus, etc.) and cancers. Thus the article is designed to discuss the immunological role of different ILCs and their interaction with adaptive immune cells in maintaining the immune homeostasis, and during inflammatory autoimmune diseases along with other inflammatory conditions (excluding pathogen-induced inflammation), including cancer, graft-versus-host diseases, and human pregnancy.
Collapse
Affiliation(s)
- Vijay Kumar
- Children's Health Queensland Clinical Unit, School of Clinical Medicine, Faculty of Medicine, Mater Research, University of Queensland, St Lucia, Brisbane, Queensland, Australia.,School of Biomedical Sciences, Faculty of Medicine, University of Queensland, St Lucia, Brisbane, Queensland, Australia
| |
Collapse
|
7
|
Evasion of Innate Lymphoid Cell-Regulated Gamma Interferon Responses by Chlamydia muridarum To Achieve Long-Lasting Colonization in Mouse Colon. Infect Immun 2020; 88:IAI.00798-19. [PMID: 31818961 DOI: 10.1128/iai.00798-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/05/2019] [Indexed: 12/14/2022] Open
Abstract
Revealing the mechanisms by which bacteria establish long-lasting colonization in the gastrointestinal tract is an area of intensive investigation. The obligate intracellular bacterium Chlamydia is known to colonize mouse colon for long periods. A colonization-deficient mutant strain of this intracellular bacterium is able to regain long-lasting colonization in gamma interferon (IFN-γ) knockout mice following intracolon inoculation. We now report that mice deficient in conventional T lymphocytes or recombination-activating gene (Rag) failed to show rescue of mutant colonization. Nevertheless, antibody depletion of IFN-γ or genetic deletion of interleukin 2 (IL-2) receptor common gamma chain in Rag-deficient mice did rescue mutant colonization. These observations suggest that colonic IFN-γ, responsible for inhibiting the intracellular bacterial mutant, is produced by innate lymphoid cells (ILCs). Consistently, depletion of NK1.1+ cells in Rag-deficient mice both prevented IFN-γ production and rescued mutant colonization. Furthermore, mice deficient in transcriptional factor RORγt, but not chemokine receptor CCR6, showed full rescue of the long-lasting colonization of the mutant, indicating a role for group 3-like ILCs. However, the inhibitory function of the responsible group 3-like ILCs was not dependent on the natural killer cell receptor (NCR1), since NCR1-deficient mice still inhibited mutant colonization. Consistently, mice deficient in the transcriptional factor T-bet only delayed the clearance of the bacterial mutant without fully rescuing the long-lasting colonization of the mutant. Thus, we have demonstrated that the obligate intracellular bacterium Chlamydia maintains its long-lasting colonization in the colon by evading IFN-γ from group 3-like ILCs.
Collapse
|
8
|
Parker ME, Ciofani M. Regulation of γδ T Cell Effector Diversification in the Thymus. Front Immunol 2020; 11:42. [PMID: 32038664 PMCID: PMC6992645 DOI: 10.3389/fimmu.2020.00042] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/08/2020] [Indexed: 12/27/2022] Open
Abstract
γδ T cells are the first T cell lineage to develop in the thymus and take up residence in a wide variety of tissues where they can provide fast, innate-like sources of effector cytokines for barrier defense. In contrast to conventional αβ T cells that egress the thymus as naïve cells, γδ T cells can be programmed for effector function during development in the thymus. Understanding the molecular mechanisms that determine γδ T cell effector fate is of great interest due to the wide-spread tissue distribution of γδ T cells and their roles in pathogen clearance, immunosurveillance, cancer, and autoimmune diseases. In this review, we will integrate the current understanding of the role of the T cell receptor, environmental signals, and transcription factor networks in controlling mouse innate-like γδ T cell effector commitment.
Collapse
Affiliation(s)
| | - Maria Ciofani
- Department of Immunology, Duke University Medical Center, Durham, NC, United States
| |
Collapse
|
9
|
Abstract
Natural killer (NK) cells are important innate effectors for their defense against pathogens and tumors without the need of prior sensitization. Along with the growing understanding of basic NK cell biology, it has been widely accepted that NK cells are a heterogeneous population of innate lymphoid cell (ILC) family. Apart from the conventional NK cell (cNK) subset that circulates throughout the body, some non-lymphoid tissues contain tissue-resident NK (trNK) cell subsets, and the composition of NK cell subsets varies greatly with different locations. Except for cNK cells, other ILCs are known as tissue-resident cells. In this review, we summarize the unique properties of trNK cells, discuss their lineage relationship with other ILCs, and highlight recent advances in our understanding of the functions of trNK cells and other ILCs.
Collapse
|
10
|
Pedersen SJ, Maksymowych WP. Beyond the TNF-α Inhibitors: New and Emerging Targeted Therapies for Patients with Axial Spondyloarthritis and their Relation to Pathophysiology. Drugs 2019; 78:1397-1418. [PMID: 30171593 DOI: 10.1007/s40265-018-0971-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Axial spondyloarthritis (axSpA) is a complex disease that affects the joints and entheses of axial and peripheral joints, and is associated with inflammation in extra-articular sites such as the gut. Improved knowledge on genetics and immunology has improved treatment options with the availability of treatments targeting tumor necrosis factor-α (TNF-α) and interleukin (IL)-17. However, these agents do not provide clinical benefit for about 40% of patients, and additional therapeutic options are necessary. Theories on pathogenesis includes misfolding of HLA-B*27 during its assembly leading to endoplasmic reticulum stress and autophagy/unfolded protein response (UPR). HLA-B*27 may express free heavy chain on the cell surface, which activates innate immune receptors on T, natural killer, and myeloid cells with pro-inflammatory effects. Activation of UPR genes is associated with increased TNF-α, interleukin-23 (IL-23), IL-17, interferon-γ expression, and expansion of T helper (Th)-17 cells. Certain genotypes of endoplasmic reticulum aminopeptidase (ERAP) 1 and 2 are associated with ankylosing spondylitis (AS) and functionally interact with the HLA-B27 peptidome. Innate immune cells type 3, which express RORγt, regulate expression of IL-17 and IL-22 in T cells. Stimulation of gamma-delta T cells with IL-23 also induces IL-17. Mucosa-associated invariant T cells residing in the gut mucosa express IL-17 in AS patients after stimulation with IL-7. Prostaglandin E2 induces IL-17A independent of IL-23 via IL-1β and IL-6. The pathogenic role of gut inflammation, zonulin and microbiota, which has a different composition in AS patients, remains to be elucidated. This article also includes a comprehensive review on the mechanism of action and efficacy of the biological treatments currently approved for axSpA (TNF-α inhibitors and IL-17 inhibitors) and future targets for treatment (other IL-17 family member (s), Janus kinase, IL-23, and phosphodiesterase 4).
Collapse
Affiliation(s)
- Susanne Juhl Pedersen
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Disease, Rigshospitalet, Valdemar Hansens Vej 17, 2600, Glostrup, Denmark.
| | - Walter P Maksymowych
- Department of Medicine, University of Alberta, Edmonton, Alberta, T6G 2S2, Canada
| |
Collapse
|
11
|
Zimmerman KA, Bentley MR, Lever JM, Li Z, Crossman DK, Song CJ, Liu S, Crowley MR, George JF, Mrug M, Yoder BK. Single-Cell RNA Sequencing Identifies Candidate Renal Resident Macrophage Gene Expression Signatures across Species. J Am Soc Nephrol 2019; 30:767-781. [PMID: 30948627 DOI: 10.1681/asn.2018090931] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 02/19/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Resident macrophages regulate homeostatic and disease processes in multiple tissues, including the kidney. Despite having well defined markers to identify these cells in mice, technical limitations have prevented identification of a similar cell type across species. The inability to identify resident macrophage populations across species hinders the translation of data obtained from animal model to human patients. METHODS As an entry point to determine novel markers that could identify resident macrophages across species, we performed single-cell RNA sequencing (scRNAseq) analysis of all T and B cell-negative CD45+ innate immune cells in mouse, rat, pig, and human kidney tissue. RESULTS We identified genes with enriched expression in mouse renal resident macrophages that were also present in candidate resident macrophage populations across species. Using the scRNAseq data, we defined a novel set of possible cell surface markers (Cd74 and Cd81) for these candidate kidney resident macrophages. We confirmed, using parabiosis and flow cytometry, that these proteins are indeed enriched in mouse resident macrophages. Flow cytometry data also indicated the existence of a defined population of innate immune cells in rat and human kidney tissue that coexpress CD74 and CD81, suggesting the presence of renal resident macrophages in multiple species. CONCLUSIONS Based on transcriptional signatures, our data indicate that there is a conserved population of innate immune cells across multiple species that have been defined as resident macrophages in the mouse. Further, we identified potential cell surface markers to allow for future identification and characterization of this candidate resident macrophage population in mouse, rat, and pig translational studies.
Collapse
Affiliation(s)
| | | | | | - Zhang Li
- Department of Cell, Developmental, and Integrative Biology
| | | | | | - Shanrun Liu
- Department of Biochemistry and Molecular Genetics, and
| | | | - James F George
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Michal Mrug
- Division of Nephrology, Department of Medicine.,Department of Veterans Affairs Medical Center, Birmingham, Alabama
| | | |
Collapse
|
12
|
Interleukin-7 promotes lung-resident CD14+ monocytes activity in patients with lung squamous carcinoma. Int Immunopharmacol 2019; 67:202-210. [DOI: 10.1016/j.intimp.2018.12.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/04/2018] [Accepted: 12/10/2018] [Indexed: 12/14/2022]
|
13
|
Hossny EM, El-Ghoneimy DH, El-Owaidy RH, Mansour MG, Hamza MT, El-Said AF. Breast milk interleukin-7 and thymic gland development in infancy. Eur J Nutr 2019; 59:111-118. [PMID: 30607563 DOI: 10.1007/s00394-018-01891-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 12/28/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE Interleukin-7 (IL-7) is known to be important for lymphocyte development. We sought to investigate the maternal breast milk IL-7 expression to explore its impact on thymus development in infants. METHODS We conducted a prospective study on three groups of healthy infants classified into exclusively breast-fed (n = 19), formula-fed (n = 17) and mixed-fed (n = 19) infants. They were investigated at 2, 4 and 6 months of age for thymic indices by ultrasonography, T lymphocyte subsets enumeration by flowcytometry and breast milk IL-7 levels. RESULTS Thymic indices were higher at the age of 2 and 6 months in the exclusively breast-fed infants (mean ± SD 22.4 ± 2.1, 26.2 ± 2.7 mm3, respectively) and mixed-fed infants (mean ± SD 22 ± 3.2, 25 ± 3.2, respectively) as compared to formula-fed infants (mean ± SD 17.9 ± 3.7, 21.6 ± 3.9 respectively); p < 0.001. In the exclusively breast-fed infants, IL-7 levels correlated positively to thymic indices and CD3+ T cell numbers at 2 months of age. Positive correlations were elicited in the mixed-fed group at 2, 4 and 6 months of age for thymic indices and at 6 months for CD3+ cells. CONCLUSION Breast milk and/or its IL-7 content have a significant positive impact on thymic development. Our conclusions are limited by the sample size and short duration of follow-up. What is known is that breast milk has a trophic role in thymic development and contains IL-7. What is new is that there is positive correlation between breast milk IL-7 concentration and thymic development and lymphocyte output; variation of IL-7 levels with type of feeding (exclusive breast feeding/mixed breast and formula feeding) and with time postnatally.
Collapse
Affiliation(s)
- Elham M Hossny
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, 11566, Egypt
| | - Dalia H El-Ghoneimy
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, 11566, Egypt
| | - Rasha H El-Owaidy
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, 11566, Egypt.
| | | | - Mohammad T Hamza
- Clinical Pathology Department, Ain Shams University, Cairo, Egypt
| | - Amira F El-Said
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, 11566, Egypt
| |
Collapse
|
14
|
Horsburgh S, Todryk S, Ramming A, Distler JH, O’Reilly S. Innate lymphoid cells and fibrotic regulation. Immunol Lett 2018; 195:38-44. [DOI: 10.1016/j.imlet.2017.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/15/2017] [Accepted: 08/18/2017] [Indexed: 01/04/2023]
|
15
|
Moore AJ, In TS, Trotman-Grant A, Yoganathan K, Montpellier B, Guidos CJ, Zúñiga-Pflücker JC, Anderson MK. A key role for IL-7R in the generation of microenvironments required for thymic dendritic cells. Immunol Cell Biol 2017; 95:933-942. [PMID: 28890536 PMCID: PMC5698111 DOI: 10.1038/icb.2017.74] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 08/10/2017] [Accepted: 08/24/2017] [Indexed: 11/21/2022]
Abstract
Interleukin-7 receptor (IL-7R) signaling is critical for multiple stages of T-cell development, but a role in the establishment of the mature thymic architecture needed for T-cell development and thymocyte selection has not been established. Crosstalk signals between developing thymocytes and thymic epithelial cell (TEC) precursors are critical for their differentiation into cortical TECs (cTECs) and medullary TECs (mTECs). In addition, mTEC-derived factors have been implicated in the recruitment of thymic dendritic cells (DCs) and intrathymic DC development. We therefore examined corticomedullary structure and DC populations in the thymus of Il7r−/− mice. Analysis of TEC phenotype and spatial organization revealed a striking shift in the mTEC to cTEC ratio, accompanied by disorganized corticomedullary structure. Several of the thymic subsets known to have DC potential were nearly absent, accompanied by reductions in DC cell numbers. We also examined chemokine expression in the Il7r−/− thymus, and found a significant decrease in mTEC-derived CCR7 ligand expression, and high levels of cTEC-derived chemokines, including CCL25 and CXCL12. Although splenic DCs were similarly affected, bone marrow (BM) precursors capable of giving rise to DCs were unperturbed. Finally, BM chimeras showed that there was no intrinsic need for IL-7R signaling in the development or recruitment of thymic DCs, but that the provision of wild-type progenitors enhanced reconstitution of thymic DCs from Il7r−/− progenitors. Our results are therefore supportive of a model in which Il7r-dependent cells are required to set up the microenvironments that allow accumulation of thymic DCs.
Collapse
Affiliation(s)
- Amanda J Moore
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Tracy Sh In
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Ashton Trotman-Grant
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Kogulan Yoganathan
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Bertrand Montpellier
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Program in Developmental and Stem Cell Biology, Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
| | - Cynthia J Guidos
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Program in Developmental and Stem Cell Biology, Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
| | - Juan Carlos Zúñiga-Pflücker
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Michele K Anderson
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
16
|
Continuous IL-23 stimulation drives ILC3 depletion in the upper GI tract and, in combination with TNFα, induces robust activation and a phenotypic switch of ILC3. PLoS One 2017; 12:e0182841. [PMID: 28792532 PMCID: PMC5549730 DOI: 10.1371/journal.pone.0182841] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 07/25/2017] [Indexed: 01/28/2023] Open
Abstract
Mutations in the Interleukin (IL)-23/IL-23 receptor loci are associated with increased inflammatory bowel disease (IBD) susceptibility, and IL-23 neutralization has shown efficacy in early clinical trials. To better understand how an excess of IL-23 affects the gastrointestinal tract, we investigated chronic systemic IL-23 exposure in healthy wildtype mice. As expected, IL-23 exposure resulted in early activation of intestinal type 3 innate lymphoid cells (ILC3), followed by infiltration of activated RORγt+ T helper cells. Surprisingly, however, sustained IL-23 stimulus also dramatically reduced classical ILC3 populations within the proximal small intestine, and a phenotypically distinct T-bet expressing ILC3 population emerged. TNFα neutralization, a widely used IBD therapy, reduced several aspects of the IL-23 driven ILC3 response, suggesting a synergy between IL-23 and TNFα in ILC3 activation. In vitro studies supported these findings, revealing previously unappreciated effects of IL-23 and TNFα within the intestine.
Collapse
|
17
|
Vitenberga Z, Pilmane M. Inflammatory, anti-inflammatory and regulatory cytokines in relatively healthy lung tissue as an essential part of the local immune system. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2017. [PMID: 28627525 DOI: 10.5507/bp.2017.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The innate and adaptive immune systems in lungs are maintained not only by immune cells but also by non-immune tissue structures, locally providing wide intercellular communication networks and regulating the local tissue immune response. AIMS The aim of this study was to determine the appearance and distribution of inflammatory, anti-inflammatory and regulatory cytokines in relatively healthy lung tissue samples. MATERIAL AND METHODS We evaluated lung tissue specimens obtained from 49 patients aged 9-95 years in relatively healthy study subjects. Tissue samples were examined by hematoxylin and eosin staining. Interleukin-1 (IL-1), interleukin-4 (IL-4), interleukin-6 (IL-6), interleukin-7 (IL-7), and interleukin-10 (IL-10) were detected by an immunohistochemistry (IMH) method. The number of positive structures was counted semiquantitatively by microscopy. Non-parametric tests were used to analyse the data. RESULTS IL-1-positive cells were mostly found in the bronchial cartilage and alveolar epithelium. Immunoreactive lung macrophages were also found. The numbers of IL-4, IL-6, IL-7, and IL-10 containing cells were also found in the bronchial epithelium (in addition to those previously listed). The number of positive structures varied from occasional to moderate, but was graded higher in cartilage. Overall, fewer IL-1-positive cells and more IL-10-positive cells were found. Almost no positive structures for all examined cytokines were found in connective tissue and bronchial glands. CONCLUSIONS Relatively healthy lung tissue exhibits anti-inflammatory response patterns. The cytokine distribution and appearance suggest persistent stimulation of cytokine expression in lung tissue and indicate the presence of local regulatory and modulating patterns. The pronounced cytokine distribution in bronchial cartilage suggests the involvement of a compensatory local immune response in the supporting tissue.
Collapse
Affiliation(s)
- Zane Vitenberga
- Department of Morphology, Institute of Anatomy and Anthropology, Riga Stradins University, Kronvalda Boulevard 9, Riga, LV-1010, Latvia
| | - Mara Pilmane
- Department of Morphology, Institute of Anatomy and Anthropology, Riga Stradins University, Kronvalda Boulevard 9, Riga, LV-1010, Latvia
| |
Collapse
|
18
|
Robinette ML, Bando JK, Song W, Ulland TK, Gilfillan S, Colonna M. IL-15 sustains IL-7R-independent ILC2 and ILC3 development. Nat Commun 2017; 8:14601. [PMID: 28361874 PMCID: PMC5380969 DOI: 10.1038/ncomms14601] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 01/16/2017] [Indexed: 12/18/2022] Open
Abstract
The signals that maintain tissue-resident innate lymphoid cells (ILC) in different microenvironments are incompletely understood. Here we show that IL-7 receptor (IL-7R) is not strictly required for the development of any ILC subset, as residual cells persist in the small intestinal lamina propria (siLP) of adult and neonatal Il7ra-/- mice. Il7ra-/- ILC2 primarily express an ST2- phenotype, but are not inflammatory ILC2. CCR6+ ILC3, which express higher Bcl-2 than other ILC3, are the most abundant subset in Il7ra-/- siLP. All ILC subsets are functionally competent in vitro, and are sufficient to provide enhanced protection to infection with C. rodentium. IL-15 equally sustains wild-type and Il7ra-/- ILC survival in vitro and compensates for IL-7R deficiency, as residual ILCs are depleted in mice lacking both molecules. Collectively, these data demonstrate that siLP ILCs are not completely IL-7R dependent, but can persist partially through IL-15 signalling.
Collapse
Affiliation(s)
- Michelle L. Robinette
- Department of Pathology & Immunology, Washington University School of Medicine, 509 S. Euclid Ave Box 8118, St Louis, Missouri 63110, USA
| | - Jennifer K. Bando
- Department of Pathology & Immunology, Washington University School of Medicine, 509 S. Euclid Ave Box 8118, St Louis, Missouri 63110, USA
| | - Wilbur Song
- Department of Pathology & Immunology, Washington University School of Medicine, 509 S. Euclid Ave Box 8118, St Louis, Missouri 63110, USA
| | - Tyler K. Ulland
- Department of Pathology & Immunology, Washington University School of Medicine, 509 S. Euclid Ave Box 8118, St Louis, Missouri 63110, USA
| | - Susan Gilfillan
- Department of Pathology & Immunology, Washington University School of Medicine, 509 S. Euclid Ave Box 8118, St Louis, Missouri 63110, USA
| | - Marco Colonna
- Department of Pathology & Immunology, Washington University School of Medicine, 509 S. Euclid Ave Box 8118, St Louis, Missouri 63110, USA
| |
Collapse
|
19
|
Sharma J, Bhar S, Devi CS. A review on interleukins: The key manipulators in rheumatoid arthritis. Mod Rheumatol 2017; 27:723-746. [DOI: 10.1080/14397595.2016.1266071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jatin Sharma
- School of Biosciences and Technology, VIT University, Vellore, India
| | - Sutonuka Bhar
- School of Biosciences and Technology, VIT University, Vellore, India
| | - C. Subathra Devi
- School of Biosciences and Technology, VIT University, Vellore, India
| |
Collapse
|
20
|
Vély F, Barlogis V, Vallentin B, Neven B, Piperoglou C, Ebbo M, Perchet T, Petit M, Yessaad N, Touzot F, Bruneau J, Mahlaoui N, Zucchini N, Farnarier C, Michel G, Moshous D, Blanche S, Dujardin A, Spits H, Distler JHW, Ramming A, Picard C, Golub R, Fischer A, Vivier E. Evidence of innate lymphoid cell redundancy in humans. Nat Immunol 2016; 17:1291-1299. [PMID: 27618553 PMCID: PMC5074366 DOI: 10.1038/ni.3553] [Citation(s) in RCA: 229] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/03/2016] [Indexed: 12/13/2022]
Abstract
Innate lymphoid cells (ILCs) have potent immune functions in experimental conditions in mice, but their contribution to immunity in natural conditions in humans remains unclear. We investigated the presence of ILCs in a cohort of patients with severe combined immunodeficiency (SCID). All ILC subsets were absent in SCID patients carrying mutations of IL2RG or JAK3. T cell reconstitution was observed in SCID patients upon hematopoietic stem cell transplantation (HSCT), but the patients still exhibited drastic reduction of ILCs in the absence of myeloablation, at the exception of rare cases of ILC1 reconstitution. Remarkably, the observed ILC deficiencies were not associated with any particular susceptibility to disease, with a follow-up extending from 7 to 39 years after HSCT. We thus report here the first cases of selective ILC deficiency in humans, and show that ILCs may be dispensable in natural conditions, if T cells are present and B cell function is preserved.
Collapse
Affiliation(s)
- Frédéric Vély
- Aix Marseille Université, CNRS, INSERM, CIML, Marseille, France.,APHM, Hôpital de la Conception, Service d'Immunologie, Marseille, France
| | - Vincent Barlogis
- APHM, Hôpital de la Timone, Service d'Hématologie et Oncologie Pédiatrique, Marseille, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France
| | - Blandine Vallentin
- APHM, Hôpital de la Timone, Service d'Hématologie et Oncologie Pédiatrique, Marseille, France
| | - Bénédicte Neven
- APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,INSERM, Paris, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France
| | - Christelle Piperoglou
- Aix Marseille Université, CNRS, INSERM, CIML, Marseille, France.,APHM, Hôpital de la Conception, Service d'Immunologie, Marseille, France
| | - Mikael Ebbo
- Aix Marseille Université, CNRS, INSERM, CIML, Marseille, France.,APHM, Hôpital de la Timone, Service de Médecine Interne, Marseille, France
| | - Thibaut Perchet
- Institut Pasteur, Unité de Lymphopoièse, INSERM, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France
| | - Maxime Petit
- Institut Pasteur, Unité de Lymphopoièse, INSERM, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France
| | - Nadia Yessaad
- MI-mAbs consortium, Aix-Marseille University, Marseille, France
| | - Fabien Touzot
- Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,APHP, Hôpital Necker-Enfants Malades, Biotherapy Unit, Paris, France
| | - Julie Bruneau
- Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,APHP, Hôpital Necker-Enfants Malades, Service d'anatomopathologie, Paris, France
| | - Nizar Mahlaoui
- APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,INSERM, Paris, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France
| | | | | | - Gérard Michel
- APHM, Hôpital de la Timone, Service d'Hématologie et Oncologie Pédiatrique, Marseille, France
| | - Despina Moshous
- APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,INSERM, Paris, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France
| | - Stéphane Blanche
- APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,INSERM, Paris, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France
| | | | - Hergen Spits
- Academic Medical Center at the University of Amsterdam, Arizona Amsterdam, the Netherlands
| | - Jörg H W Distler
- Department of Internal Medicine, Rheumatology &Immunology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Andreas Ramming
- Department of Internal Medicine, Rheumatology &Immunology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Capucine Picard
- APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,INSERM, Paris, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France.,APHP, Hôpital Necker-Enfants Malades, Study Center of Immunodeficiencies, Paris, France
| | - Rachel Golub
- Institut Pasteur, Unité de Lymphopoièse, INSERM, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France
| | - Alain Fischer
- APHP, Hôpital Universitaire Necker-Enfants Malades, Centre de Référence Déficits Immunitaires Héréditaires, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France.,INSERM, Paris, France.,APHP, Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France.,College de France, Paris, France
| | - Eric Vivier
- Aix Marseille Université, CNRS, INSERM, CIML, Marseille, France.,APHM, Hôpital de la Conception, Service d'Immunologie, Marseille, France
| |
Collapse
|
21
|
Buus TB, Geisler C, Lauritsen JPH. The major diversification of Vγ1.1 + and Vγ2 + thymocytes in mice occurs after commitment to the γδ T-cell lineage. Eur J Immunol 2016; 46:2363-2375. [PMID: 27418188 DOI: 10.1002/eji.201646407] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/29/2016] [Accepted: 07/11/2016] [Indexed: 01/12/2023]
Abstract
γδ T cells are a heterogeneous cell population with different subsets playing specialized and often opposing roles during immune responses. A key question is whether γδ thymocytes are determined for their effector function already at an early stage, before their commitment to the γδ T-cell lineage, or are instructed during their later development. Here, we show that the adult Vγ1.1+ and Vγ2+ γδ T-cell subsets both go through a CD73+ CD24+ development stage, and that the gene regulation involved in lineage commitment is shared by both subsets. We demonstrate that the major subset diversification first occurs after the cells have committed to the γδ T-cell lineage, strongly supporting an instructive model for functional programming of γδ T cells. In conclusion, we show that the two major adult γδ T-cell subsets in mice develop through a shared pathway utilizing similar cellular machinery and that they diverge after the CD24+ CD73+ maturity stage.
Collapse
Affiliation(s)
- Terkild B Buus
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Carsten Geisler
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Peter H Lauritsen
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
22
|
Mechanism of Action of IL-7 and Its Potential Applications and Limitations in Cancer Immunotherapy. Int J Mol Sci 2015; 16:10267-80. [PMID: 25955647 PMCID: PMC4463645 DOI: 10.3390/ijms160510267] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/16/2015] [Accepted: 04/29/2015] [Indexed: 01/10/2023] Open
Abstract
Interleukin-7 (IL-7) is a non-hematopoietic cell-derived cytokine with a central role in the adaptive immune system. It promotes lymphocyte development in the thymus and maintains survival of naive and memory T cell homeostasis in the periphery. Moreover, it is important for the organogenesis of lymph nodes (LN) and for the maintenance of activated T cells recruited into the secondary lymphoid organs (SLOs). The immune capacity of cancer patients is suppressed that is characterized by lower T cell counts, less effector immune cells infiltration, higher levels of exhausted effector cells and higher levels of immunosuppressive cytokines, such as transforming growth factor β (TGF-β). Recombinant human IL-7 (rhIL-7) is an ideal solution for the immune reconstitution of lymphopenia patients by promoting peripheral T cell expansion. Furthermore, it can antagonize the immunosuppressive network. In animal models, IL-7 has been proven to prolong the survival of tumor-bearing hosts. In this review, we will focus on the mechanism of action and applications of IL-7 in cancer immunotherapy and the potential restrictions for its usage.
Collapse
|
23
|
Kang J, Malhotra N. Transcription factor networks directing the development, function, and evolution of innate lymphoid effectors. Annu Rev Immunol 2015; 33:505-38. [PMID: 25650177 PMCID: PMC4674156 DOI: 10.1146/annurev-immunol-032414-112025] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Mammalian lymphoid immunity is mediated by fast and slow responders to pathogens. Fast innate lymphocytes are active within hours after infections in mucosal tissues. Slow adaptive lymphocytes are conventional T and B cells with clonal antigen receptors that function days after pathogen exposure. A transcription factor (TF) regulatory network guiding early T cell development is at the core of effector function diversification in all innate lymphocytes, and the kinetics of immune responses is set by developmental programming. Operational units within the innate lymphoid system are not classified by the types of pathogen-sensing machineries but rather by discrete effector functions programmed by regulatory TF networks. Based on the evolutionary history of TFs of the regulatory networks, fast effectors likely arose earlier in the evolution of animals to fortify body barriers, and in mammals they often develop in fetal ontogeny prior to the establishment of fully competent adaptive immunity.
Collapse
Affiliation(s)
- Joonsoo Kang
- Department of Pathology, University of Massachusetts Medical School, Worcester, Massachusetts 01655;
| | | |
Collapse
|
24
|
Churchman SM, El-Jawhari JJ, Burska AN, Parmar R, Goëb V, Conaghan PG, Emery P, Ponchel F. Modulation of peripheral T-cell function by interleukin-7 in rheumatoid arthritis. Arthritis Res Ther 2014; 16:511. [PMID: 25533722 PMCID: PMC4298067 DOI: 10.1186/s13075-014-0511-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 12/11/2014] [Indexed: 01/26/2023] Open
Abstract
Introduction Interleukin-7 (IL-7) is a cytokine essential for T-cell lymphopoiesis, survival and polarization with an emerging role in autoimmunity. We previously demonstrated reduced levels of circulating IL-7 in rheumatoid arthritis (RA), although high amounts are expressed in joints, suggesting differences between systemic and synovial effects. We observed healthy levels of IL-7 in 48% of RA patients in clinical remission (CR) and aimed to investigate the consequences of IL-7 deficiency on T-cell responses. Methods We used RA patients with active disease and in CR presenting various levels of IL-7, to investigate its modulatory effects on T cells by analysing responses to phyto-haemagglutinin (PHA), expression of polarization or survival factors, or suppression by regulatory T cells (Tregs). Results IL-7 levels were normal (>10 pg/ml) in 48% of RA patients in CR. Amongst 63 CR patients followed up for 18 months, lack of IL-7 recovery was observed in 13 out of 15 (86%) patients experiencing relapse but only 11 out of 48 (23%) of those who did not (P = 0.0002). Binary regressions showed high significance for below normal IL-7 levels for self-reported maternal family history of arthritis (odds ratio (OR): 7.66, P = 0.006) and a trend for smoking (OR: 3.33, P = 0.068) with no further demographic or clinical associations. Serum IL-7 correlated with restored CD4+T-cell response to PHA (rho = 0.879); this was not related to an increase in T-cell proliferation capacity or expression of survival factors B-cell lymphoma 2 (BCL2) and BCL2-associated protein X (BAX). Expression of Th1 polarization factor (TBET) was also dependent on exposure to IL-7 in vivo (rho = 0.600). In contrast CD25highTregs’ response to PHA was not affected by in vivo IL-7, but their suppression capabilities were related to circulating IL-7 (rho = 0.589). Co-stimulation with IL-7 (mimicking the joint environment) increased responsiveness of CD4+T-cells to PHA, lowering the ability of CD25highTregs to suppress them. Conclusions Our data demonstrate that IL-7 has a critical role in modulating T-cell function in vivo, possibly explaining opposing effects observed systemically and in the joint. Lack of IL-7 recovery in CR by maintaining a suppressed immune system may be a determinant factor in the occurrence of relapse. Electronic supplementary material The online version of this article (doi:10.1186/s13075-014-0511-3) contains supplementary material, which is available to authorized users.
Collapse
|
25
|
Zaunders JJ, Lévy Y, Seddiki N. Exploiting differential expression of the IL-7 receptor on memory T cells to modulate immune responses. Cytokine Growth Factor Rev 2014; 25:391-401. [PMID: 25130296 DOI: 10.1016/j.cytogfr.2014.07.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Interleukin-7 is a non-redundant growth, differentiation and survival factor for human T lymphocytes. Most circulating, mature T cells express the receptor for IL-7, but not all. Importantly, CD4 Tregs express greatly reduced levels of IL-7R compared to conventional CD4 T cells, presenting an opportunity to selectively target the latter cells with either more IL-7 to boost responses, or to block IL-7 signalling to limit responses. This article reviews what is known about regulation of IL-7R expression, and recent progress in therapeutic approaches related to IL-7 and its receptor.
Collapse
Affiliation(s)
- John J Zaunders
- Centre for Applied Medical Research, St. Vincent's Hospital, Australia; Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Yves Lévy
- Inserm, U955, Equipe 16, Créteil, 94000, France; Université Paris Est, Faculté de médecine, Créteil, 94000, France; Vaccine Research Institute (VRI), Créteil, 94000, France; AP-HP, Hôpital H. Mondor-A. Chenevier, Service d'immunologie Clinique et maladies infectieuses, Créteil, 94000, France
| | - Nabila Seddiki
- Inserm, U955, Equipe 16, Créteil, 94000, France; Université Paris Est, Faculté de médecine, Créteil, 94000, France; Vaccine Research Institute (VRI), Créteil, 94000, France.
| |
Collapse
|
26
|
Tal N, Shochat C, Geron I, Bercovich D, Izraeli S. Interleukin 7 and thymic stromal lymphopoietin: from immunity to leukemia. Cell Mol Life Sci 2014; 71:365-78. [PMID: 23625073 PMCID: PMC11113825 DOI: 10.1007/s00018-013-1337-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/10/2013] [Accepted: 04/08/2013] [Indexed: 01/12/2023]
Abstract
Cancer is often caused by deregulation of normal developmental processes. Here, we review recent research on the aberrant activation of two hematopoietic cytokine receptors in acute lymphoid leukemias. Somatic events in the genes for thymic stromal lymphopoietin and Interleukin 7 receptors as well as in their downstream JAK kinases result in constitutive ligand-independent activation of survival and proliferation in B and T lymphoid precursors. Drugs targeting these receptors or the signaling pathways might provide effective therapies of these leukemias.
Collapse
Affiliation(s)
- Noa Tal
- Cancer Research Center, Sheba Medical Center, Edmond and Lily Safra Children’s Hospital, Tel Hashomer, 52621 Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Chen Shochat
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Migal Galilee Technology Center, Kiryat Shmona, Israel
- Tel Hai College, 12210 Upper Galilee, Israel
| | - Ifat Geron
- Cancer Research Center, Sheba Medical Center, Edmond and Lily Safra Children’s Hospital, Tel Hashomer, 52621 Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Division of Biological Sciences and Department of Medicine Stem Cell Program, University of California San Diego, La Jolla, California USA
| | - Dani Bercovich
- Migal Galilee Technology Center, Kiryat Shmona, Israel
- Tel Hai College, 12210 Upper Galilee, Israel
| | - Shai Izraeli
- Cancer Research Center, Sheba Medical Center, Edmond and Lily Safra Children’s Hospital, Tel Hashomer, 52621 Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
27
|
Reynolds J, Coles M, Lythe G, Molina-París C. Mathematical Model of Naive T Cell Division and Survival IL-7 Thresholds. Front Immunol 2013; 4:434. [PMID: 24391638 PMCID: PMC3870322 DOI: 10.3389/fimmu.2013.00434] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 11/22/2013] [Indexed: 11/18/2022] Open
Abstract
We develop a mathematical model of the peripheral naive T cell population to study the change in human naive T cell numbers from birth to adulthood, incorporating thymic output and the availability of interleukin-7 (IL-7). The model is formulated as three ordinary differential equations: two describe T cell numbers, in a resting state and progressing through the cell cycle. The third is introduced to describe changes in IL-7 availability. Thymic output is a decreasing function of time, representative of the thymic atrophy observed in aging humans. Each T cell is assumed to possess two interleukin-7 receptor (IL-7R) signaling thresholds: a survival threshold and a second, higher, proliferation threshold. If the IL-7R signaling strength is below its survival threshold, a cell may undergo apoptosis. When the signaling strength is above the survival threshold, but below the proliferation threshold, the cell survives but does not divide. Signaling strength above the proliferation threshold enables entry into cell cycle. Assuming that individual cell thresholds are log-normally distributed, we derive population-average rates for apoptosis and entry into cell cycle. We have analyzed the adiabatic change in homeostasis as thymic output decreases. With a parameter set representative of a healthy individual, the model predicts a unique equilibrium number of T cells. In a parameter range representative of persistent viral or bacterial infection, where naive T cell cycle progression is impaired, a decrease in thymic output may result in the collapse of the naive T cell repertoire.
Collapse
Affiliation(s)
- Joseph Reynolds
- Department of Applied Mathematics, School of Mathematics, University of Leeds, Leeds, UK
| | - Mark Coles
- Centre for Immunology and Infection, University of York, York, UK
| | - Grant Lythe
- Department of Applied Mathematics, School of Mathematics, University of Leeds, Leeds, UK
| | - Carmen Molina-París
- Department of Applied Mathematics, School of Mathematics, University of Leeds, Leeds, UK
| |
Collapse
|
28
|
Adipose tissue in obesity-related inflammation and insulin resistance: cells, cytokines, and chemokines. ISRN INFLAMMATION 2013; 2013:139239. [PMID: 24455420 PMCID: PMC3881510 DOI: 10.1155/2013/139239] [Citation(s) in RCA: 667] [Impact Index Per Article: 60.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 11/14/2013] [Indexed: 12/13/2022]
Abstract
Adipose tissue is a complex organ that comprises a wide range of cell types with diverse energy storage, metabolic regulation, and neuroendocrine and immune functions. Because it contains various immune cells, either adaptive (B and T lymphocytes; such as regulatory T cells) or innate (mostly macrophages and, more recently identified, myeloid-derived suppressor cells), the adipose tissue is now considered as a bona fide immune organ, at the cross-road between metabolism and immunity. Adipose tissue disorders, such as those encountered in obesity and lipodystrophy, cause alterations to adipose tissue distribution and function with broad effects on cytokine, chemokine, and hormone expression, on lipid storage, and on the composition of adipose-resident immune cell populations. The resulting changes appear to induce profound consequences for basal systemic inflammation and insulin sensitivity. The purpose of this review is to synthesize the current literature on adipose cell composition remodeling in obesity, which shows how adipose-resident immune cells regulate inflammation and insulin resistance—notably through cytokine and chemokine secretion—and highlights major research questions in the field.
Collapse
|
29
|
Coles M, Veiga-Fernandes H. Insight into lymphoid tissue morphogenesis. Immunol Lett 2013; 156:46-53. [PMID: 23954810 DOI: 10.1016/j.imlet.2013.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 07/25/2013] [Accepted: 08/05/2013] [Indexed: 11/17/2022]
Abstract
Secondary lymphoid organs (SLO) are crucial structures for immune-surveillance and rapid immune responses allowing resident lymphocytes to encounter antigen-presenting cells that carry antigens from peripheral tissues. These structures develop during embryonic life through a tightly regulated process that involves interactions between haematopoietic and mesenchymal cells. Importantly, this morphogenesis potential is maintained throughout life since in chronic inflammatory conditions novel "tertiary lymphoid organs" can be generated by processes that are reminiscent of embryonic SLO development. In this review we will discuss early events in SLO morphogenesis, focusing on haematopoietic and mesenchymal cell subsets implicated on the development of lymphoid organs.
Collapse
Affiliation(s)
- Mark Coles
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York YO10 5DD, UK.
| | | |
Collapse
|
30
|
Niu N, Qin X. New insights into IL-7 signaling pathways during early and late T cell development. Cell Mol Immunol 2013; 10:187-9. [PMID: 23584490 DOI: 10.1038/cmi.2013.11] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Na Niu
- Department of Pathology, Weifang Medical University, Weifang, China
| | | |
Collapse
|
31
|
Innate Lymphoid Cells in Immunity and Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2013; 785:9-26. [DOI: 10.1007/978-1-4614-6217-0_2] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
32
|
Abstract
Nonhematopoietic stromal cells of secondary lymphoid organs form important scaffold and fluid transport structures, such as lymph node (LN) trabeculae, lymph vessels, and conduits. Furthermore, through the production of chemokines and cytokines, these cells generate a particular microenvironment that determines lymphocyte positioning and supports lymphocyte homeostasis. IL-7 is an important stromal cell-derived cytokine that has been considered to be derived mainly from T-cell zone fibroblastic reticular cells. We show here that lymphatic endothelial cells (LECs) are a prominent source of IL-7 both in human and murine LNs. Using bacterial artificial chromosome transgenic IL-7-Cre mice, we found that fibroblastic reticular cells and LECs strongly up-regulated IL-7 expression during LN remodeling after viral infection and LN reconstruction after avascular transplantation. Furthermore, IL-7-producing stromal cells contributed to de novo formation of LyveI-positive lymphatic structures connecting reconstructed LNs with the surrounding tissue. Importantly, diphtheria toxin-mediated depletion of IL-7-producing stromal cells completely abolished LN reconstruction. Taken together, this study identifies LN LECs as a major source of IL-7 and shows that IL-7-producing stromal cells are critical for reconstruction and remodeling of the distinct LN microenvironment.
Collapse
|