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Pellicci DG, Tavakolinia N, Perriman L, Berzins SP, Menne C. Thymic development of human natural killer T cells: recent advances and implications for immunotherapy. Front Immunol 2024; 15:1441634. [PMID: 39267746 PMCID: PMC11390520 DOI: 10.3389/fimmu.2024.1441634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 08/05/2024] [Indexed: 09/15/2024] Open
Abstract
Invariant natural killer T (iNKT) cells are a subset of lipid-reactive, unconventional T cells that have anti-tumor properties that make them a promising target for cancer immunotherapy. Recent studies have deciphered the developmental pathway of human MAIT and Vγ9Vδ2 γδ-T cells as well as murine iNKT cells, yet our understanding of human NKT cell development is limited. Here, we provide an update in our understanding of how NKT cells develop in the human body and how knowledge regarding their development could enhance human treatments by targeting these cells.
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Affiliation(s)
- Daniel G Pellicci
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Department of Microbiology and Immunology, University of Melbourne, Melbourne, VIC, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Naeimeh Tavakolinia
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Department of Microbiology and Immunology, University of Melbourne, Melbourne, VIC, Australia
| | - Louis Perriman
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Fiona Elsey Cancer Institute, Ballarat, VIC, Australia
- Federation University Australia, Ballarat, VIC, Australia
| | - Stuart P Berzins
- Department of Microbiology and Immunology, University of Melbourne, Melbourne, VIC, Australia
- Federation University Australia, Ballarat, VIC, Australia
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2
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Yu X, Chen M, Wu J, Song R. Research progress of SIRTs activator resveratrol and its derivatives in autoimmune diseases. Front Immunol 2024; 15:1390907. [PMID: 38962006 PMCID: PMC11219927 DOI: 10.3389/fimmu.2024.1390907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 06/06/2024] [Indexed: 07/05/2024] Open
Abstract
Autoimmune diseases (AID) have emerged as prominent contributors to disability and mortality worldwide, characterized by intricate pathogenic mechanisms involving genetic, environmental, and autoimmune factors. In response to this challenge, a growing body of research in recent years has delved into genetic modifications, yielding valuable insights into AID prevention and treatment. Sirtuins (SIRTs) constitute a class of NAD-dependent histone deacetylases that orchestrate deacetylation processes, wielding significant regulatory influence over cellular metabolism, oxidative stress, immune response, apoptosis, and aging through epigenetic modifications. Resveratrol, the pioneering activator of the SIRTs family, and its derivatives have captured global scholarly interest. In the context of AID, these compounds hold promise for therapeutic intervention by modulating the SIRTs pathway, impacting immune cell functionality, suppressing the release of inflammatory mediators, and mitigating tissue damage. This review endeavors to explore the potential of resveratrol and its derivatives in AID treatment, elucidating their mechanisms of action and providing a comprehensive analysis of current research advancements and obstacles. Through a thorough examination of existing literature, our objective is to advocate for the utilization of resveratrol and its derivatives in AID treatment while offering crucial insights for the formulation of innovative therapeutic approaches.
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Affiliation(s)
- Xiaolong Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
- The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
| | - Mingkai Chen
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Jiabiao Wu
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Ruixiao Song
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
- The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
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3
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Nakonechnaya TO, Moltedo B, Putintseva EV, Leyn S, Bolotin DA, Britanova OV, Shugay M, Chudakov DM. Convergence, plasticity, and tissue residence of regulatory T cell response via TCR repertoire prism. eLife 2024; 12:RP89382. [PMID: 38591522 PMCID: PMC11003740 DOI: 10.7554/elife.89382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
Suppressive function of regulatory T cells (Treg) is dependent on signaling of their antigen receptors triggered by cognate self, dietary, or microbial peptides presented on MHC II. However, it remains largely unknown whether distinct or shared repertoires of Treg TCRs are mobilized in response to different challenges in the same tissue or the same challenge in different tissues. Here we use a fixed TCRβ chain FoxP3-GFP mouse model to analyze conventional (eCD4) and regulatory (eTreg) effector TCRα repertoires in response to six distinct antigenic challenges to the lung and skin. This model shows highly 'digital' repertoire behavior with easy-to-track challenge-specific TCRα CDR3 clusters. For both eCD4 and eTreg subsets, we observe challenge-specific clonal expansions yielding homologous TCRα clusters within and across animals and exposure sites, which are also reflected in the draining lymph nodes but not systemically. Some CDR3 clusters are shared across cancer challenges, suggesting a response to common tumor-associated antigens. For most challenges, eCD4 and eTreg clonal response does not overlap. Such overlap is exclusively observed at the sites of certain tumor challenges, and not systematically, suggesting transient and local tumor-induced eCD4=>eTreg plasticity. This transition includes a dominant tumor-responding eCD4 CDR3 motif, as well as characteristic iNKT TCRα CDR3. In addition, we examine the homeostatic tissue residency of clonal eTreg populations by excluding the site of challenge from our analysis. We demonstrate that distinct CDR3 motifs are characteristic of eTreg cells residing in particular lymphatic tissues, regardless of the challenge. This observation reveals the tissue-resident, antigen-specific clonal Treg populations.
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Affiliation(s)
- Tatyana O Nakonechnaya
- Institute of Translational Medicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Bruno Moltedo
- Howard Hughes Medical Institute and Immunology Program, Sloan Kettering Institute and Ludwig Center at Memorial Sloan Kettering Cancer CenterNew YorkUnited States
| | - Ekaterina V Putintseva
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Sofya Leyn
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Dmitry A Bolotin
- Institute of Translational Medicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Olga V Britanova
- Institute of Translational Medicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Mikhail Shugay
- Institute of Translational Medicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Dmitriy M Chudakov
- Institute of Translational Medicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin and Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
- Central European Institute of TechnologyBrnoCzech Republic
- Abu Dhabi Stem Cells CenterAbu DhabiUnited Arab Emirates
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4
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Yazdanpanah E, Dadfar S, Shadab A, Orooji N, Nemati M, Pazoki A, Esmaeili SA, Baharlou R, Haghmorad D. Berberine: A natural modulator of immune cells in multiple sclerosis. Immun Inflamm Dis 2024; 12:e1213. [PMID: 38477663 DOI: 10.1002/iid3.1213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Berberine is a benzylisoquinoline alkaloid found in such plants as Berberis vulgaris, Berberis aristata, and others, revealing a variety of pharmacological properties as a result of interacting with different cellular and molecular targets. Recent studies have shown the immunomodulatory effects of Berberine which result from its impacts on immune cells and immune response mediators such as diverse T lymphocyte subsets, dendritic cells (DCs), and different inflammatory cytokines. Multiple sclerosis (MS) is a chronic disabling and neurodegenerative disease of the central nervous system (CNS) characterized by the recruitment of autoreactive T cells into the CNS causing demyelination, axonal damage, and oligodendrocyte loss. There have been considerable changes discovered in MS regards to the function and frequency of T cell subsets such as Th1 cells, Th17 cells, Th2 cells, Treg cells, and DCs. In the current research, we reviewed the outcomes of in vitro, experimental, and clinical investigations concerning the modulatory effects that Berberine provides on the function and numbers of T cell subsets and DCs, as well as important cytokines that are involved in MS.
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Affiliation(s)
- Esmaeil Yazdanpanah
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sepehr Dadfar
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Alireza Shadab
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Niloufar Orooji
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - MohammadHossein Nemati
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Alireza Pazoki
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | | | - Rasoul Baharlou
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Dariush Haghmorad
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
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Hebbandi Nanjundappa R, Shao K, Krishnamurthy P, Gershwin ME, Leung PSC, Sokke Umeshappa C. Invariant natural killer T cells in autoimmune cholangiopathies: Mechanistic insights and therapeutic implications. Autoimmun Rev 2024; 23:103485. [PMID: 38040101 DOI: 10.1016/j.autrev.2023.103485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 11/23/2023] [Indexed: 12/03/2023]
Abstract
Invariant natural killer T cells (iNKT cells) constitute a specialized subset of lymphocytes that bridges innate and adaptive immunity through a combination of traits characteristic of both conventional T cells and innate immune cells. iNKT cells are characterized by their invariant T cell receptors and discerning recognition of lipid antigens, which are presented by the non-classical MHC molecule, CD1d. Within the hepatic milieu, iNKT cells hold heightened prominence, contributing significantly to the orchestration of organ homeostasis. Their unique positioning to interact with diverse cellular entities, ranging from epithelial constituents like hepatocytes and cholangiocytes to immunocytes including Kupffer cells, B cells, T cells, and dendritic cells, imparts them with potent immunoregulatory abilities. Emergering knowledge of liver iNKT cells subsets enable to explore their therapeutic potential in autoimmne liver diseases. This comprehensive review navigates the landscape of iNKT cell investigations in immune-mediated cholangiopathies, with a particular focus on primary biliary cholangitis and primary sclerosing cholangitis, across murine models and human subjects to unravel the intricate involvements of iNKT cells in liver autoimmunity. Additionally, we also highlight the prospectives of iNKT cells as therapeutic targets in cholangiopathies. Modulation of the equilibrium between regulatory and proinflammatory iNKT subsets can be defining determinant in the dynamics of hepatic autoimmunity. This discernment not only enriches our foundational comprehension but also lays the groundwork for pioneering strategies to navigate the multifaceted landscape of liver autoimmunity.
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Affiliation(s)
| | - Kun Shao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, USA
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States.
| | - Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Channakeshava Sokke Umeshappa
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada; Department of Pediatrics, IWK Research Center, Halifax, NS, Canada.
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Tognarelli EI, Gutiérrez-Vera C, Palacios PA, Pasten-Ferrada IA, Aguirre-Muñoz F, Cornejo DA, González PA, Carreño LJ. Natural Killer T Cell Diversity and Immunotherapy. Cancers (Basel) 2023; 15:5737. [PMID: 38136283 PMCID: PMC10742272 DOI: 10.3390/cancers15245737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
Invariant natural killer T cells (iNKTs), a type of unconventional T cells, share features with NK cells and have an invariant T cell receptor (TCR), which recognizes lipid antigens loaded on CD1d molecules, a major histocompatibility complex class I (MHC-I)-like protein. This interaction produces the secretion of a wide array of cytokines by these cells, including interferon gamma (IFN-γ) and interleukin 4 (IL-4), allowing iNKTs to link innate with adaptive responses. Interestingly, molecules that bind CD1d have been identified that enable the modulation of these cells, highlighting their potential pro-inflammatory and immunosuppressive capacities, as required in different clinical settings. In this review, we summarize key features of iNKTs and current understandings of modulatory α-galactosylceramide (α-GalCer) variants, a model iNKT cell activator that can shift the outcome of adaptive immune responses. Furthermore, we discuss advances in the development of strategies that modulate these cells to target pathologies that are considerable healthcare burdens. Finally, we recapitulate findings supporting a role for iNKTs in infectious diseases and tumor immunotherapy.
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Affiliation(s)
- Eduardo I. Tognarelli
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Cristián Gutiérrez-Vera
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Pablo A. Palacios
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Ignacio A. Pasten-Ferrada
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Fernanda Aguirre-Muñoz
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Daniel A. Cornejo
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Leandro J. Carreño
- Millennium Institute on Immunology and Immunotherapy, Santiago 8330025, Chile; (E.I.T.); (C.G.-V.); (P.A.P.); (I.A.P.-F.); (F.A.-M.); (D.A.C.)
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
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7
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Laera N, Malerba P, Vacanti G, Nardin S, Pagnesi M, Nardin M. Impact of Immunity on Coronary Artery Disease: An Updated Pathogenic Interplay and Potential Therapeutic Strategies. Life (Basel) 2023; 13:2128. [PMID: 38004268 PMCID: PMC10672143 DOI: 10.3390/life13112128] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Coronary artery disease (CAD) is the leading cause of death worldwide. It is a result of the buildup of atherosclerosis within the coronary arteries. The role of the immune system in CAD is complex and multifaceted. The immune system responds to damage or injury to the arterial walls by initiating an inflammatory response. However, this inflammatory response can become chronic and lead to plaque formation. Neutrophiles, macrophages, B lymphocytes, T lymphocytes, and NKT cells play a key role in immunity response, both with proatherogenic and antiatherogenic signaling pathways. Recent findings provide new roles and activities referring to endothelial cells and vascular smooth muscle cells, which help to clarify the intricate signaling crosstalk between the involved actors. Research is ongoing to explore immunomodulatory therapies that target the immune system to reduce inflammation and its contribution to atherosclerosis. This review aims to summarize the pathogenic interplay between immunity and CAD and the potential therapeutic strategies, and explore immunomodulatory therapies that target the immune system to reduce inflammation and its contribution to atherosclerosis.
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Affiliation(s)
- Nicola Laera
- Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy;
- Second Medicine Division, Department of Medicine, ASST Spedali Civili di Brescia, 25123 Brescia, Italy
| | - Paolo Malerba
- Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy;
- Division of Medicine, Department of Medicine, ASST Spedali Civili di Montichiari, 25018 Montichiari, Italy
| | - Gaetano Vacanti
- Medical Clinic IV, Department of Cardiology, Municipal Hospital, 76133 Karlsruhe, Germany;
| | - Simone Nardin
- U.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy;
- Department of Internal Medicine and Medical Sciences, School of Medicine, University of Genova, 16126 Genova, Italy
| | - Matteo Pagnesi
- Division of Cardiology, ASST Spedali Civili of Brescia, 25123 Brescia, Italy;
| | - Matteo Nardin
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy;
- Third Medicine Division, Department of Medicine, ASST Spedali Civili di Brescia, 25123 Brescia, Italy
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8
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Kurioka A, Klenerman P. Aging unconventionally: γδ T cells, iNKT cells, and MAIT cells in aging. Semin Immunol 2023; 69:101816. [PMID: 37536148 PMCID: PMC10804939 DOI: 10.1016/j.smim.2023.101816] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023]
Abstract
Unconventional T cells include γδ T cells, invariant Natural Killer T cells (iNKT) cells and Mucosal Associated Invariant T (MAIT) cells, which are distinguished from conventional T cells by their recognition of non-peptide ligands presented by non-polymorphic antigen presenting molecules and rapid effector functions that are pre-programmed during their development. Here we review current knowledge of the effect of age on unconventional T cells, from early life to old age, in both mice and humans. We then discuss the role of unconventional T cells in age-associated diseases and infections, highlighting the similarities between members of the unconventional T cell family in the context of aging.
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Affiliation(s)
- Ayako Kurioka
- Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Paul Klenerman
- Nuffield Department of Medicine, University of Oxford, Oxford, UK; Translational Gastroenterology Unit, University of Oxford, Oxford, UK
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Hatamzade Esfahani N, Day AS. The Role of TGF-β, Activin and Follistatin in Inflammatory Bowel Disease. GASTROINTESTINAL DISORDERS 2023; 5:167-186. [DOI: 10.3390/gidisord5020015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Abstract
Inflammatory bowel disease (IBD) is an immune-mediated inflammatory condition predominantly affecting the gastrointestinal (GI) tract. An increasing prevalence of IBD has been observed globally. The pathogenesis of IBD includes a complex interplay between the intestinal microbiome, diet, genetic factors and immune responses. The consequent imbalance of inflammatory mediators ultimately leads to intestinal mucosal damage and defective repair. Growth factors, given their specific roles in maintaining the homeostasis and integrity of the intestinal epithelium, are of particular interest in the setting of IBD. Furthermore, direct targeting of growth factor signalling pathways involved in the regeneration of the damaged epithelium and the regulation of inflammation could be considered as therapeutic options for individuals with IBD. Several members of the transforming growth factor (TGF)-β superfamily, particularly TGF-β, activin and follistatin, are key candidates as they exhibit various roles in inflammatory processes and contribute to maintenance and homeostasis in the GI tract. This article aimed firstly to review the events involved in the pathogenesis of IBD with particular emphasis on TGF-β, activin and follistatin and secondly to outline the potential role of therapeutic manipulation of these pathways.
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Affiliation(s)
| | - Andrew S. Day
- Paediatric Department, University of Otago Christchurch, Christchurch 8140, New Zealand
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10
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Park HJ, Lee SW, Park YH, Kim TC, Van Kaer L, Hong S. CD1d-independent NK1.1+ Treg cells are IL2-inducible Foxp3+ T cells co-expressing immunosuppressive and cytotoxic molecules. Front Immunol 2022; 13:951592. [PMID: 36177042 PMCID: PMC9513232 DOI: 10.3389/fimmu.2022.951592] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Regulatory T cells (Treg) play pivotal roles in maintaining self-tolerance and preventing immunological diseases such as allergy and autoimmunity through their immunosuppressive properties. Although Treg cells are heterogeneous populations with distinct suppressive functions, expression of natural killer (NK) cell receptors (NKR) by these cells remains incompletely explored. Here we identified that a small population of Foxp3+CD4+ Treg cells in mice expresses the NK1.1 NKR. Furthermore, we found that rare NK1.1+ subpopulations among CD4+ Treg cells develop normally in the spleen but not the thymus through CD1d-independent pathways. Compared with NK1.1- conventional Treg cells, these NK1.1+ Treg cells express elevated Treg cell phenotypic hallmarks, pro-inflammatory cytokines, and NK cell-related cytolytic mediators. Our results suggest that NK1.1+ Treg cells are phenotypically hybrid cells sharing functional properties of both NK and Treg cells. Interestingly, NK1.1+ Treg cells preferentially expanded in response to recombinant IL2 stimulation in vitro, consistent with their increased IL2Rαβ expression. Moreover, DO11.10 T cell receptor transgenic NK1.1+ Treg cells were expanded in an ovalbumin antigen-specific manner. In the context of lipopolysaccharide-induced systemic inflammation, NK1.1+ Treg cells downregulated immunosuppressive molecules but upregulated TNFα production, indicating their plastic adaptation towards a more pro-inflammatory rather than regulatory phenotype. Collectively, we propose that NK1.1+ Treg cells might play a unique role in controlling inflammatory immune responses such as infection and autoimmunity.
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Affiliation(s)
- Hyun Jung Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, South Korea
| | - Sung Won Lee
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, South Korea
| | - Yun Hoo Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, South Korea
| | - Tae-Cheol Kim
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, South Korea
| | - Luc Van Kaer
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Seokmann Hong
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, South Korea
- *Correspondence: Seokmann Hong,
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Umeshappa CS, Solé P, Yamanouchi J, Mohapatra S, Surewaard BGJ, Garnica J, Singha S, Mondal D, Cortés-Vicente E, D’Mello C, Mason A, Kubes P, Serra P, Yang Y, Santamaria P. Re-programming mouse liver-resident invariant natural killer T cells for suppressing hepatic and diabetogenic autoimmunity. Nat Commun 2022; 13:3279. [PMID: 35672409 PMCID: PMC9174212 DOI: 10.1038/s41467-022-30759-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 05/17/2022] [Indexed: 12/11/2022] Open
Abstract
AbstractInvariant NKT (iNKT) cells comprise a heterogeneous group of non-circulating, tissue-resident T lymphocytes that recognize glycolipids, including alpha-galactosylceramide (αGalCer), in the context of CD1d, but whether peripheral iNKT cell subsets are terminally differentiated remains unclear. Here we show that mouse and human liver-resident αGalCer/CD1d-binding iNKTs largely correspond to a novel Zbtb16+Tbx21+Gata3+MaflowRorc– subset that exhibits profound transcriptional, phenotypic and functional plasticity. Repetitive in vivo encounters of these liver iNKT (LiNKT) cells with intravenously delivered αGalCer/CD1d-coated nanoparticles (NP) trigger their differentiation into immunoregulatory, IL-10+IL-21-producing Zbtb16highMafhighTbx21+Gata3+Rorc– cells, termed LiNKTR1, expressing a T regulatory type 1 (TR1)-like transcriptional signature. This response is LiNKT-specific, since neither lung nor splenic tissue-resident iNKT cells from αGalCer/CD1d-NP-treated mice produce IL-10 or IL-21. Additionally, these LiNKTR1 cells suppress autoantigen presentation, and recognize CD1d expressed on conventional B cells to induce IL-10+IL-35-producing regulatory B (Breg) cells, leading to the suppression of liver and pancreas autoimmunity. Our results thus suggest that LiNKT cells are plastic for further functional diversification, with such plasticity potentially targetable for suppressing tissue-specific inflammatory phenomena.
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12
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Mertowska P, Mertowski S, Podgajna M, Grywalska E. The Importance of the Transcription Factor Foxp3 in the Development of Primary Immunodeficiencies. J Clin Med 2022; 11:947. [PMID: 35207219 PMCID: PMC8874698 DOI: 10.3390/jcm11040947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 02/05/2023] Open
Abstract
Transcription factors are an extremely important group of proteins that are responsible for the process of selective activation or deactivation of other cellular proteins, usually at the last stage of signal transmission in the cell. An important family of transcription factors that regulate the body's response is the FOX family which plays an important role in regulating the expression of genes involved in cell growth, proliferation, and differentiation. The members of this family include the intracellular protein Foxp3, which regulates the process of differentiation of the T lymphocyte subpopulation, and more precisely, is responsible for the development of regulatory T lymphocytes. This protein influences several cellular processes both directly and indirectly. In the process of cytokine production regulation, the Foxp3 protein interacts with numerous proteins and transcription factors such as NFAT, nuclear factor kappa B, and Runx1/AML1 and is involved in the process of histone acetylation in condensed chromatin. Malfunctioning of transcription factor Foxp3 caused by the mutagenesis process affects the development of disorders of the immune response and autoimmune diseases. This applies to the impairment or inability of the immune system to fight infections due to a disruption of the mechanisms supporting immune homeostasis which in turn leads to the development of a special group of disorders called primary immunodeficiencies (PID). The aim of this review is to provide information on the role of the Foxp3 protein in the human body and its involvement in the development of two types of primary immunodeficiency diseases: IPEX (Immunodysregulation Polyendocrinopathy Enteropathy X-linked syndrome) and CVID (Common Variable Immunodeficiency).
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Affiliation(s)
| | - Sebastian Mertowski
- Department of Experimental Immunology, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (P.M.); (M.P.); (E.G.)
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13
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Vogt S, Mattner J. NKT Cells Contribute to the Control of Microbial Infections. Front Cell Infect Microbiol 2021; 11:718350. [PMID: 34595131 PMCID: PMC8477047 DOI: 10.3389/fcimb.2021.718350] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/25/2021] [Indexed: 12/14/2022] Open
Abstract
Innate (-like) T lymphocytes such as natural killer T (NKT) cells play a pivotal role in the recognition of microbial infections and their subsequent elimination. They frequently localize to potential sites of pathogen entry at which they survey extracellular and intracellular tissue spaces for microbial antigens. Engagement of their T cell receptors (TCRs) induces an explosive release of different cytokines and chemokines, which often pre-exist as constitutively expressed gene transcripts in NKT cells and underlie their poised effector state. Thus, NKT cells regulate immune cell migration and activation and subsequently, bridge innate and adaptive immune responses. In contrast to conventional T cells, which react to peptide antigens, NKT cells recognize lipids presented by the MHC class I like CD1d molecule on antigen presenting cells (APCs). Furthermore, each NKT cell TCR can recognize various antigen specificities, whereas a conventional T lymphocyte TCR reacts mostly only to one single antigen. These lipid antigens are either intermediates of the intracellular APC`s-own metabolism or originate from the cell wall of different bacteria, fungi or protozoan parasites. The best-characterized subset, the type 1 NKT cell subset expresses a semi-invariant TCR. In contrast, the TCR repertoire of type 2 NKT cells is diverse. Furthermore, NKT cells express a panoply of inhibitory and activating NK cell receptors (NKRs) that contribute to their primarily TCR-mediated rapid, innate like immune activation and even allow an adaption of their immune response in an adoptive like manner. Dueto their primary localization at host-environment interfaces, NKT cells are one of the first immune cells that interact with signals from different microbial pathogens. Vice versa, the mutual exchange with local commensal microbiota shapes also the biology of NKT cells, predominantly in the gastrointestinal tract. Following infection, two main signals drive the activation of NKT cells: first, cognate activation upon TCR ligation by microbial or endogenous lipid antigens; and second, bystander activation due to cytokines. Here we will discuss the role of NKT cells in the control of different microbial infections comparing pathogens expressing lipid ligands in their cell walls to infectious agents inducing endogenous lipid antigen presentation by APCs.
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Affiliation(s)
- Stefan Vogt
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Jochen Mattner
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany.,Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
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14
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Proctor M, Gonzalez Cruz JL, Daignault-Mill SM, Veitch M, Zeng B, Ehmann A, Sabdia M, Snell C, Keane C, Dolcetti R, Haass NK, Wells JW, Gabrielli B. Targeting Replication Stress Using CHK1 Inhibitor Promotes Innate and NKT Cell Immune Responses and Tumour Regression. Cancers (Basel) 2021; 13:3733. [PMID: 34359633 PMCID: PMC8345057 DOI: 10.3390/cancers13153733] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 12/18/2022] Open
Abstract
Drugs selectively targeting replication stress have demonstrated significant preclinical activity, but this has not yet translated into an effective clinical treatment. Here we report that targeting increased replication stress with a combination of Checkpoint kinase 1 inhibitor (CHK1i) with a subclinical dose of hydroxyurea targets also promotes pro-inflammatory cytokine/chemokine expression that is independent of cGAS-STING pathway activation and immunogenic cell death in human and murine melanoma cells. In vivo, this drug combination induces tumour regression which is dependent on an adaptive immune response. It increases cytotoxic CD8+ T cell activity, but the major adaptive immune response is a pronounced NKT cell tumour infiltration. Treatment also promotes an immunosuppressive tumour microenvironment through CD4+ Treg and FoxP3+ NKT cells. The number of these accumulated during treatment, the increase in FoxP3+ NKT cells numbers correlates with the decrease in activated NKT cells, suggesting they are a consequence of the conversion of effector to suppressive NKT cells. Whereas tumour infiltrating CD8+ T cell PD-1 and tumour PD-L1 expression was increased with treatment, peripheral CD4+ and CD8+ T cells retained strong anti-tumour activity. Despite increased CD8+ T cell PD-1, combination with anti-PD-1 did not improve response, indicating that immunosuppression from Tregs and FoxP3+ NKT cells are major contributors to the immunosuppressive tumour microenvironment. This demonstrates that therapies targeting replication stress can be well tolerated, not adversely affect immune responses, and trigger an effective anti-tumour immune response.
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Affiliation(s)
- Martina Proctor
- Mater Research Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (M.P.); (A.E.); (M.S.); (C.K.)
| | - Jazmina L. Gonzalez Cruz
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
| | - Sheena M. Daignault-Mill
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
| | - Margaret Veitch
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
| | - Bijun Zeng
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
| | - Anna Ehmann
- Mater Research Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (M.P.); (A.E.); (M.S.); (C.K.)
| | - Muhammed Sabdia
- Mater Research Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (M.P.); (A.E.); (M.S.); (C.K.)
| | - Cameron Snell
- Mater Pathology, Mater Research, Mater Hospital, Raymond Terrace, South Brisbane, QLD 4101, Australia;
| | - Colm Keane
- Mater Research Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (M.P.); (A.E.); (M.S.); (C.K.)
| | - Riccardo Dolcetti
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
- Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3010, Australia
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Nikolas K. Haass
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
| | - James W. Wells
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (J.L.G.C.); (S.M.D.-M.); (M.V.); (B.Z.); (R.D.); (N.K.H.); (J.W.W.)
| | - Brian Gabrielli
- Mater Research Institute, The University of Queensland, Brisbane, QLD 4102, Australia; (M.P.); (A.E.); (M.S.); (C.K.)
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15
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Regulation and Functions of Protumoral Unconventional T Cells in Solid Tumors. Cancers (Basel) 2021; 13:cancers13143578. [PMID: 34298791 PMCID: PMC8304984 DOI: 10.3390/cancers13143578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/02/2021] [Accepted: 07/12/2021] [Indexed: 01/03/2023] Open
Abstract
The vast majority of studies on T cell biology in tumor immunity have focused on peptide-reactive conventional T cells that are restricted to polymorphic major histocompatibility complex molecules. However, emerging evidence indicated that unconventional T cells, including γδ T cells, natural killer T (NKT) cells and mucosal-associated invariant T (MAIT) cells are also involved in tumor immunity. Unconventional T cells span the innate-adaptive continuum and possess the unique ability to rapidly react to nonpeptide antigens via their conserved T cell receptors (TCRs) and/or to activating cytokines to orchestrate many aspects of the immune response. Since unconventional T cell lineages comprise discrete functional subsets, they can mediate both anti- and protumoral activities. Here, we review the current understanding of the functions and regulatory mechanisms of protumoral unconventional T cell subsets in the tumor environment. We also discuss the therapeutic potential of these deleterious subsets in solid cancers and why further feasibility studies are warranted.
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16
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Ingram Z, Madan S, Merchant J, Carter Z, Gordon Z, Carey G, Webb TJ. Targeting Natural Killer T Cells in Solid Malignancies. Cells 2021; 10:1329. [PMID: 34072042 PMCID: PMC8227159 DOI: 10.3390/cells10061329] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/19/2021] [Accepted: 05/22/2021] [Indexed: 12/12/2022] Open
Abstract
Natural killer T (NKT) cells are a unique subset of lymphocytes that recognize lipid antigens in the context of the non-classical class I MHC molecule, CD1d, and serve as a link between the innate and adaptive immune system through their expeditious release of cytokines. Whereas NKT have well-established roles in mitigating a number of human diseases, herein, we focus on their role in cancer. NKT cells have been shown to directly and indirectly mediate anti-tumor immunity and manipulating their effector functions can have therapeutic significances in treatment of cancer. In this review, we highlight several therapeutic strategies that have been used to harness the effector functions of NKT cells to target different types of solid tumors. We also discuss several barriers to the successful utilization of NKT cells and summarize effective strategies being developed to harness the unique strengths of this potent population of T cells. Collectively, studies investigating the therapeutic potential of NKT cells serve not only to advance our understanding of this powerful immune cell subset, but also pave the way for future treatments focused on the modulation of NKT cell responses to enhance cancer immunotherapy.
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Affiliation(s)
| | | | | | | | | | | | - Tonya J. Webb
- Department of Microbiology and Immunology, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (Z.I.); (S.M.); (J.M.); (Z.C.); (Z.G.); (G.C.)
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17
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Leadbetter EA, Karlsson MCI. Invariant natural killer T cells balance B cell immunity. Immunol Rev 2021; 299:93-107. [PMID: 33438287 DOI: 10.1111/imr.12938] [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] [Received: 08/20/2020] [Revised: 11/21/2020] [Accepted: 12/04/2020] [Indexed: 12/21/2022]
Abstract
Invariant natural killer T (iNKT) cells mediate rapid immune responses which bridge the gap between innate and adaptive responses to pathogens while also providing key regulation to maintain immune homeostasis. Both types of important iNKT immune responses are mediated through interactions with innate and adaptive B cells. As such, iNKT cells sit at the decision-making fulcrum between regulating inflammatory or autoreactive B cells and supporting protective or regulatory B cell populations. iNKT cells interpret the signals in their environment to set the tone for subsequent adaptive responses, with outcomes ranging from getting licensed to maintain homeostasis as an iNKT regulatory cell (iNKTreg ) or being activated to become an iNKT follicular helper (iNKTFH ) cell supporting pathogen-specific effector B cells. Here we review iNKT and B cell cooperation across the spectrum of immune outcomes, including during allergy and autoimmune disease, tumor surveillance and immunotherapy, or pathogen defense and vaccine responses. Because of their key role as influencers, iNKT cells provide a valuable target for therapeutic interventions. Understanding the nature of the interactions between iNKT and B cells will enable the development of clinical interventions to strategically target regulatory iNKT and B cell populations or inflammatory ones, depending on the circumstance.
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Affiliation(s)
- Elizabeth A Leadbetter
- Department of Microbiology, Immunology and Molecular Genetics, UT Health San Antonio, San Antonio, TX, USA
| | - Mikael C I Karlsson
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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18
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Reading the room: iNKT cells influence B cell responses. Mol Immunol 2020; 130:49-54. [PMID: 33360376 DOI: 10.1016/j.molimm.2020.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/02/2020] [Indexed: 12/31/2022]
Abstract
Rapid immune responses regulated by invariant Natural Killer T (iNKT) cells bridge the gap between innate and adaptive responses to pathogens, while also providing key regulation to maintain immune homeostasis. iNKT immune protection and immune regulation are both mediated through interactions with innate and adaptive B cell populations that express CD1d. Recent studies have expanded our understanding of the position of iNKT cells at the fulcrum between regulating inflammatory and autoreactive B cells. Environmental signals influence iNKT cells to set the tone for subsequent adaptive responses, ranging from maintaining homeostasis as an iNKT regulatory cell (iNKTreg) or supporting pathogen-specific effector B cells as an iNKT follicular helper (iNKTFH). Here we review recent advances in iNKT and B cell cooperation during autoimmunity and sterile inflammation. Understanding the nature of the interactions between iNKT and B cells will enable the development of clinical interventions to strategically target regulatory iNKT and B cell populations or inflammatory ones, across a range of indications.
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19
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Lymphocyte Immunosuppression and Dysfunction Contributing to Persistent Inflammation, Immunosuppression, and Catabolism Syndrome (PICS). Shock 2020; 55:723-741. [PMID: 33021569 DOI: 10.1097/shk.0000000000001675] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
ABSTRACT Persistent Inflammation, Immune Suppression, and Catabolism Syndrome (PICS) is a disease state affecting patients who have a prolonged recovery after the acute phase of a large inflammatory insult. Trauma and sepsis are two pathologies after which such an insult evolves. In this review, we will focus on the key clinical determinants of PICS: Immunosuppression and cellular dysfunction. Currently, relevant immunosuppressive functions have been attributed to both innate and adaptive immune cells. However, there are significant gaps in our knowledge, as for trauma and sepsis the immunosuppressive functions of these cells have mostly been described in acute phase of inflammation so far, and their clinical relevance for the development of prolonged immunosuppression is mostly unknown. It is suggested that the initial immune imbalance determines the development of PCIS. Additionally, it remains unclear what distinguishes the onset of immune dysfunction in trauma and sepsis and how this drives immunosuppression in these cells. In this review, we will discuss how regulatory T cells (Tregs), innate lymphoid cells, natural killer T cells (NKT cells), TCR-a CD4- CD8- double-negative T cells (DN T cells), and B cells can contribute to the development of post-traumatic and septic immunosuppression. Altogether, we seek to fill a gap in the understanding of the contribution of lymphocyte immunosuppression and dysfunction to the development of chronic immune disbalance. Further, we will provide an overview of promising diagnostic and therapeutic interventions, whose potential to overcome the detrimental immunosuppression after trauma and sepsis is currently being tested.
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20
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Hu WC. A Framework of All Discovered Immunological Pathways and Their Roles for Four Specific Types of Pathogens and Hypersensitivities. Front Immunol 2020; 11:1992. [PMID: 32849663 PMCID: PMC7426516 DOI: 10.3389/fimmu.2020.01992] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/23/2020] [Indexed: 01/05/2023] Open
Affiliation(s)
- Wan-Chung Hu
- Department of Clinical Pathology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
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21
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Kumar A, Hill TM, Gordy LE, Suryadevara N, Wu L, Flyak AI, Bezbradica JS, Van Kaer L, Joyce S. Nur77 controls tolerance induction, terminal differentiation, and effector functions in semi-invariant natural killer T cells. Proc Natl Acad Sci U S A 2020; 117:17156-17165. [PMID: 32611812 PMCID: PMC7382224 DOI: 10.1073/pnas.2001665117] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Semi-invariant natural killer T (iNKT) cells are self-reactive lymphocytes, yet how this lineage attains self-tolerance remains unknown. iNKT cells constitutively express high levels of Nr4a1-encoded Nur77, a transcription factor that integrates signal strength downstream of the T cell receptor (TCR) within activated thymocytes and peripheral T cells. The function of Nur77 in iNKT cells is unknown. Here we report that sustained Nur77 overexpression (Nur77tg) in mouse thymocytes abrogates iNKT cell development. Introgression of a rearranged Vα14-Jα18 TCR-α chain gene into the Nur77tg (Nur77tg;Vα14tg) mouse rescued iNKT cell development up to the early precursor stage, stage 0. iNKT cells in bone marrow chimeras that reconstituted thymic cellularity developed beyond stage 0 precursors and yielded IL-4-producing NKT2 cell subset but not IFN-γ-producing NKT1 cell subset. Nonetheless, the developing thymic iNKT cells that emerged in these chimeras expressed the exhaustion marker PD1 and responded poorly to a strong glycolipid agonist. Thus, Nur77 integrates signals emanating from the TCR to control thymic iNKT cell tolerance induction, terminal differentiation, and effector functions.
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MESH Headings
- Animals
- Cell Differentiation/genetics
- Cell Differentiation/immunology
- Cells, Cultured
- Immune Tolerance/genetics
- Immune Tolerance/immunology
- Mice
- Mice, Knockout
- Natural Killer T-Cells/immunology
- Natural Killer T-Cells/metabolism
- Nuclear Receptor Subfamily 4, Group A, Member 1/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 1/immunology
- Nuclear Receptor Subfamily 4, Group A, Member 1/metabolism
- Receptors, Antigen, T-Cell
- Thymocytes
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Affiliation(s)
- Amrendra Kumar
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37232
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Timothy M Hill
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
- Department of Chemistry and Life Science, US Military Academy, West Point, NY 10996
| | - Laura E Gordy
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Naveenchandra Suryadevara
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Lan Wu
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Andrew I Flyak
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
- Department of Biology, Caltech, Pasadena, CA 91125
| | - Jelena S Bezbradica
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
- The Kennedy Institute of Rheumatology, University of Oxford, Oxford OX1 2JD, United Kingdom
| | - Luc Van Kaer
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Sebastian Joyce
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37232;
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
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22
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Brailey PM, Lebrusant‐Fernandez M, Barral P. NKT cells and the regulation of intestinal immunity: a two‐way street. FEBS J 2020; 287:1686-1699. [PMID: 32022989 DOI: 10.1111/febs.15238] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/17/2020] [Accepted: 02/03/2020] [Indexed: 12/14/2022]
Abstract
The mammalian gastrointestinal compartment is colonised by millions of microorganisms that have a central influence on human health. Intestinal homeostasis requires a continuous dialogue between the commensal bacteria and intestinal immune cells. While interactions between host and commensal bacteria are normally beneficial, allowing training and functional tuning of immune cells, dysregulated immune system-microbiota crosstalk can favour the development of chronic inflammatory diseases, as it is the case for inflammatory bowel disease (IBD). Natural killer T (NKT) cells, which recognise CD1-restricted microbial and self-lipids, contribute to the regulation of mucosal immunity by controlling intestinal homeostasis and participating in the development of IBD. Here, we provide an overview of the recently identified pathways underlying the crosstalk between commensal bacteria and NKT cells and discuss the effect of these interactions in intestinal health and disease.
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Affiliation(s)
- Phillip M. Brailey
- The Peter Gorer Department of Immunobiology King’s College London UK
- The Francis Crick Institute London UK
| | - Marta Lebrusant‐Fernandez
- The Peter Gorer Department of Immunobiology King’s College London UK
- The Francis Crick Institute London UK
| | - Patricia Barral
- The Peter Gorer Department of Immunobiology King’s College London UK
- The Francis Crick Institute London UK
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23
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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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24
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Clancy‐Thompson E, Chen GZ, LaMarche NM, Ali LR, Jeong H, Crowley SJ, Boelaars K, Brenner MB, Lynch L, Dougan SK. Transnuclear mice reveal Peyer's patch iNKT cells that regulate B-cell class switching to IgG1. EMBO J 2019; 38:e101260. [PMID: 31304630 PMCID: PMC6627243 DOI: 10.15252/embj.2018101260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 04/28/2019] [Accepted: 05/02/2019] [Indexed: 12/27/2022] Open
Abstract
Tissue-resident iNKT cells maintain tissue homeostasis and peripheral surveillance against pathogens; however, studying these cells is challenging due to their low abundance and poor recovery from tissues. We here show that iNKT transnuclear mice, generated by somatic cell nuclear transfer, have increased tissue resident iNKT cells. We examined expression of PLZF, T-bet, and RORγt, as well as cytokine/chemokine profiles, and found that both monoclonal and polyclonal iNKT cells differentiated into functional subsets that faithfully replicated those seen in wild-type mice. We detected iNKT cells from tissues in which they are rare, including adipose, lung, skin-draining lymph nodes, and a previously undescribed population in Peyer's patches (PP). PP-NKT cells produce the majority of the IL-4 in Peyer's patches and provide indirect help for B-cell class switching to IgG1 in both transnuclear and wild-type mice. Oral vaccination with α-galactosylceramide shows enhanced fecal IgG1 titers in iNKT cell-sufficient mice. Transcriptional profiling reveals a unique signature of PP-NKT cells, characterized by tissue residency. We thus define PP-NKT as potentially important for surveillance for mucosal pathogens.
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Affiliation(s)
| | - Gui Zhen Chen
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMAUSA
| | - Nelson M LaMarche
- Department of RheumatologyBrigham and Women's HospitalBostonMAUSA
- Program in ImmunologyHarvard Medical SchoolBostonMAUSA
| | - Lestat R Ali
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMAUSA
| | - Hee‐Jin Jeong
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMAUSA
- Present address:
Hongik UniversitySeoulKorea
| | - Stephanie J Crowley
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMAUSA
| | - Kelly Boelaars
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMAUSA
- VU University AmsterdamAmsterdamThe Netherlands
| | - Michael B Brenner
- Department of RheumatologyBrigham and Women's HospitalBostonMAUSA
- Program in ImmunologyHarvard Medical SchoolBostonMAUSA
| | - Lydia Lynch
- Department of RheumatologyBrigham and Women's HospitalBostonMAUSA
- Program in ImmunologyHarvard Medical SchoolBostonMAUSA
| | - Stephanie K Dougan
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMAUSA
- Program in ImmunologyHarvard Medical SchoolBostonMAUSA
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25
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Regulatory T cells in cancer immunosuppression - implications for anticancer therapy. Nat Rev Clin Oncol 2019; 16:356-371. [PMID: 30705439 DOI: 10.1038/s41571-019-0175-7] [Citation(s) in RCA: 869] [Impact Index Per Article: 173.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Regulatory T (Treg) cells, an immunosuppressive subset of CD4+ T cells characterized by the expression of the master transcription factor forkhead box protein P3 (FOXP3), are a component of the immune system with essential roles in maintaining self-tolerance. In addition, Treg cells can suppress anticancer immunity, thereby hindering protective immunosurveillance of neoplasia and hampering effective antitumour immune responses in tumour-bearing hosts, thus promoting tumour development and progression. Identification of the factors that are specifically expressed in Treg cells and/or that influence Treg cell homeostasis and function is important to understanding cancer pathogenesis and to identifying therapeutic targets. Immune-checkpoint inhibitors (ICIs) have provided a paradigm shift in the treatment of cancer. Most immune-checkpoint molecules are expressed in Treg cells, but the effects of ICIs on Treg cells, and thus the contributions of these cells to treatment responses, remain unclear. Notably, evidence indicates that ICIs targeting programmed cell death 1 (PD-1) might enhance the immunosuppressive function of Treg cells, whereas cytotoxic T lymphocyte antigen 4 (CTLA-4) inhibitors might deplete these cells. Thus, although manipulation of Treg cells is a promising anticancer therapeutic strategy, approaches to controlling these cells require further research. Herein, we discuss novel insights into the roles of Treg cells in cancer, which can hopefully be used to develop Treg cell-targeted therapies and facilitate immune precision medicine.
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Biagioli M, Carino A, Fiorucci C, Marchianò S, Di Giorgio C, Roselli R, Magro M, Distrutti E, Bereshchenko O, Scarpelli P, Zampella A, Fiorucci S. GPBAR1 Functions as Gatekeeper for Liver NKT Cells and provides Counterregulatory Signals in Mouse Models of Immune-Mediated Hepatitis. Cell Mol Gastroenterol Hepatol 2019; 8:447-473. [PMID: 31226434 PMCID: PMC6718949 DOI: 10.1016/j.jcmgh.2019.06.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 06/06/2019] [Accepted: 06/06/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND & AIMS GPBAR1, also known as TGR5, is a G protein-coupled receptor activated by bile acids. Hepatic innate immune cells are involved in the immunopathogenesis of human liver diseases and in several murine hepatitis models. Here, by using genetic and pharmacological approaches, we provide evidence that GPBAR1 ligation attenuates the inflammation in rodent models of hepatitis. MATERIAL AND METHODS Hepatitis was induced by concanavalin A (Con A) or α-galactosyl-ceramide (α-GalCer). 6b-Ethyl-3a,7b-dihydroxy-5b-cholan-24-ol (BAR501), a selective agonist of GPBAR1, was administrated by o.s. RESULTS In the mouse models of hepatitis, the genetic ablation of Gpabar1 worsened the severity of liver injury and resulted in a type I NKT cells phenotype that was biased toward a NKT1, a proinflammatory, IFN-γ producing, NKT cells subtype. Further on, NKT cells from GPBAR1-/- mice were sufficient to cause a severe hepatitis when transferred to naïve mice. In contrast, GPBAR1 agonism rescued wild-type mice from acute liver damage and redirects the NKT cells polarization toward a NKT10, a regulatory, IL-10 secreting, type I NKT cell subset. In addition, GPBAR1 agonism significantly expanded the subset of IL-10 secreting type II NKT cells. RNAseq analysis of both NKT cells type confirmed that IL-10 is a major target for GPABR1. Accordingly, IL-10 gene ablation abrogated protection afforded by GPBAR1 agonism in the Con A model. CONCLUSION Present results illustrate a role for GPBAR1 in regulating liver NKT ecology. Because NKT cells are an essential component of liver immune system, our data provide a compelling evidence for a GPBAR1-IL-10 axis in regulating of liver immunity.
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Affiliation(s)
- Michele Biagioli
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy
| | - Adriana Carino
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy
| | - Chiara Fiorucci
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy
| | - Silvia Marchianò
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy
| | - Cristina Di Giorgio
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy
| | - Rosalinda Roselli
- Dipartimento di Farmacia, Università di Napoli Federico II, Napoli, Italy
| | - Margherita Magro
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy
| | - Eleonora Distrutti
- SC di Gastroenterologia ed Epatologia, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Oxana Bereshchenko
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy,Department of Medicine, University of Perugia, Perugia, Italy
| | - Paolo Scarpelli
- University of Perugia, Department of Experimental Medicine, Perugia, Italy
| | - Angela Zampella
- Dipartimento di Farmacia, Università di Napoli Federico II, Napoli, Italy
| | - Stefano Fiorucci
- Dipartimento di Scienze Biomediche e Chirurgiche, Università di Perugia, Perugia, Italy,Correspondence Address correspondence to: Stefano Fiorucci, Department of Surgical and Biomedical Science, University of Perugia, Piazza Lucio Severi 1, 06132, S. Andrea delle Fratte, Perugia, Italy. fax: (+39) 075 5858405.
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Schäfer A, Hühr J, Schwaiger T, Dorhoi A, Mettenleiter TC, Blome S, Schröder C, Blohm U. Porcine Invariant Natural Killer T Cells: Functional Profiling and Dynamics in Steady State and Viral Infections. Front Immunol 2019; 10:1380. [PMID: 31316500 PMCID: PMC6611438 DOI: 10.3389/fimmu.2019.01380] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 05/31/2019] [Indexed: 12/19/2022] Open
Abstract
Pigs are important livestock and comprehensive understanding of their immune responses in infections is critical to improve vaccines and therapies. Moreover, similarities between human and swine physiology suggest that pigs are a superior animal model for immunological studies. However, paucity of experimental tools for a systematic analysis of the immune responses in pigs represent a major disadvantage. To evaluate the pig as a biomedical model and additionally expand the knowledge of rare immune cell populations in swine, we established a multicolor flow cytometry analysis platform of surface marker expression and cellular responses for porcine invariant Natural Killer T cells (iNKT). In humans, iNKT cells are among the first line defenders in various tissues, respond to CD1d-restricted antigens and become rapidly activated. Naïve porcine iNKT cells were CD3+/CD4−/CD8+ or CD3+/CD4−/CD8− and displayed an effector- or memory-like phenotype (CD25+/ICOS+/CD5hi/CD45RA−/CCR7 ± /CD27+). Based on their expression of the transcription factors T bet and the iNKT cell-specific promyelocytic leukemia zinc finger protein (PLZF), porcine iNKT cells were differentiated into functional subsets. Analogous to human iNKT cells, in vitro stimulation of porcine leukocytes with the CD1d ligand α-galactosylceramide resulted in rapid iNKT cell proliferation, evidenced by an increase in frequency and Ki-67 expression. Moreover, this approach revealed CD25, CD5, ICOS, and the major histocompatibility complex class II (MHC II) as activation markers on porcine iNKT cells. Activated iNKT cells also expressed interferon-γ, upregulated perforin expression, and displayed degranulation. In steady state, iNKT cell frequency was highest in newborn piglets and decreased with age. Upon infection with two viruses of high relevance to swine and humans, iNKT cells expanded. Animals infected with African swine fever virus displayed an increase of iNKT cell frequency in peripheral blood, regional lymph nodes, and lungs. During Influenza A virus infection, iNKT cell percentage increased in blood, lung lymph nodes, and broncho-alveolar lavage. Our in-depth characterization of porcine iNKT cells contributes to a better understanding of porcine immune responses, thereby facilitating the design of innovative interventions against infectious diseases. Moreover, we provide new evidence that endorses the suitability of the pig as a biomedical model for iNKT cell research.
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Affiliation(s)
- Alexander Schäfer
- Institute of Immunology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Jane Hühr
- Institute of Immunology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Theresa Schwaiger
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Anca Dorhoi
- Institute of Immunology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Thomas C Mettenleiter
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Sandra Blome
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Charlotte Schröder
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Ulrike Blohm
- Institute of Immunology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
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Dashtsoodol N, Bortoluzzi S, Schmidt-Supprian M. T Cell Receptor Expression Timing and Signal Strength in the Functional Differentiation of Invariant Natural Killer T Cells. Front Immunol 2019; 10:841. [PMID: 31080448 PMCID: PMC6497757 DOI: 10.3389/fimmu.2019.00841] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/01/2019] [Indexed: 12/19/2022] Open
Abstract
The CD1d-restricted Vα14 invariant NKT (iNKT) cell lineage in mice (Vα24 in humans) represents an evolutionary conserved innate-like immune cell type that recognizes glycolipid antigens. Because of their unique ability to promptly secrete copious amounts of both pro-inflammatory and anti-inflammatory cytokines, typically produced by different T helper cell types, iNKT cells are implicated in the regulation of various pathologic conditions such as infection, allergy, autoimmune disease, maintenance of transplantation tolerance, and cancer. This striking multifaceted role in immune regulation is correlated with the presence of multiple functionally distinct iNKT cell subsets that can be distinguished based on the expression of characteristic surface markers and transcription factors. However, to date it, remains largely unresolved how this puzzling diversity of iNKT cell functional subsets emerges and what factors dictate the type of effector cell differentiation during the thymic differentiation considering the mono-specific nature of their T cell receptor (TCR) and their selecting molecule CD1d. Here, we summarize recent findings focusing on the role of TCR-mediated signaling and discuss possible mechanisms that may influence the sub-lineage choice of iNKT cells.
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Affiliation(s)
- Nyambayar Dashtsoodol
- Department of Hematology and Medical Oncology, Klinikum rechts der Isar and TranslaTUM Cancer Center, Technische Universität München, München, Germany.,Department of Microbiology and Immunology, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Sabrina Bortoluzzi
- Department of Hematology and Medical Oncology, Klinikum rechts der Isar and TranslaTUM Cancer Center, Technische Universität München, München, Germany
| | - Marc Schmidt-Supprian
- Department of Hematology and Medical Oncology, Klinikum rechts der Isar and TranslaTUM Cancer Center, Technische Universität München, München, Germany
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29
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A natural killer T-cell subset that protects against airway hyperreactivity. J Allergy Clin Immunol 2019; 143:565-576.e7. [DOI: 10.1016/j.jaci.2018.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 01/31/2018] [Accepted: 03/19/2018] [Indexed: 12/25/2022]
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Abstract
Natural killer T (NKT) cells are a subset of T lymphocytes that recognize a wide variety of lipid antigens presented by the atypical MHC class I molecule CD1d. NKT cells exhibit rapid activation after recognition of cognate antigens, secrete abundant amounts of T helper (Th) 1, Th2, and Th17 cytokines within hours of activation and shape the immune response through subsequent activation of dendritic, NK, T, and B cells. NKT cells therefore play central roles in antimicrobial and anticancer immunity and in the modulation of various autoimmune disorders. Consequently, recent research has focused on the discovery of microbial and self-antigens involved in NKT cell activation. In this chapter, we will discuss different strategies for studying antigen recognition by NKT cells including CD1d tetramer-based approaches and in vitro assays characterizing NKT cell activation in response to lipid antigen presentation. While Toll-like receptor (TLR) agonists and cytokines such as IL-12 are critical for NKT cell activation in vivo, particularly in the context of microbial infection, methods for detection of TLR- and cytokine-dependent NKT cell activation will not be discussed in this section.
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Abstract
In this chapter, we describe the history of transplantation, the multiple cell types, and mechanisms that are involved in rejection and tolerance of a transplanted organ, as well as summarize the common and promising new therapeutics used in transplant patients.
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Affiliation(s)
- Jessica Stolp
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Masaaki Zaitsu
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Kathryn J Wood
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK.
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Milward K, Hester J, Wood KJ. Isolation of Human Regulatory T Lymphocytes by Fluorescence-Activated Cell Sorting. Methods Mol Biol 2019; 1899:43-54. [PMID: 30649764 DOI: 10.1007/978-1-4939-8938-6_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Regulatory T cells (Tregs) are a population of lymphocytes that exerts suppressive effects upon the immune system. In human peripheral blood, the major population of T lymphocytes with suppressive capacity are defined by expression of the T cell co-receptor CD4 and the interleukin-2 receptor α-chain (CD25), combined with minimal expression of the interleukin-7 receptor α subunit (CD127). We begin by outlining the method for isolating peripheral blood mononuclear cells (PBMCs) from human blood by centrifugation of whole blood overlayed on a hydrophilic polysaccharide, with an additional erythrocyte lysis step. The protocol that follows utilizes Fluorescence-Activated Cell Sorting (FACS) for the isolation of this CD4+CD25+CD127lo population of regulatory T cells, with high yield and purity, from immunostained PBMCs. Prior to FACS isolation, this protocol exploits magnetic immunoselection for pre-enrichment of CD25+ PBMC, which reduces the duration of the subsequent FACS isolation.
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Affiliation(s)
- Kate Milward
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Joanna Hester
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Kathryn J Wood
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK.
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Robinson KA, Orent W, Madsen JC, Benichou G. Maintaining T cell tolerance of alloantigens: Lessons from animal studies. Am J Transplant 2018; 18:1843-1856. [PMID: 29939471 PMCID: PMC6352985 DOI: 10.1111/ajt.14984] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 01/25/2023]
Abstract
Achieving host immune tolerance of allogeneic transplants represents the ultimate challenge in clinical transplantation. It has become clear that different cells and mechanisms participate in acquisition versus maintenance of allograft tolerance. Indeed, manipulations which prevent tolerance induction often fail to abrogate tolerance once it has been established. Hence, elucidation of the immunological mechanisms underlying maintenance of T cell tolerance to alloantigens is essential for the development of novel interventions that preserve a robust and long lasting state of allograft tolerance that relies on T cell deletion in addition to intra-graft suppression of inflammatory immune responses. In this review, we discuss some essential elements of the mechanisms involved in the maintenance of naturally occurring or experimentally induced allograft tolerance, including the newly described role of antigen cross-dressing mediated by extracellular vesicles.
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Affiliation(s)
- Kortney A. Robinson
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA
| | - William Orent
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA
| | - Joren C. Madsen
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA.,Division of Cardiac Surgery, Department of Surgery,
Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Gilles Benichou
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA
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Peptide Tk-PQ induces immunosuppression in skin allogeneic transplantation via increasing Foxp3 + Treg and impeding nuclear translocation of NF-κB. Mol Immunol 2018; 101:597-607. [PMID: 30001873 DOI: 10.1016/j.molimm.2018.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 12/14/2022]
Abstract
Solid organ transplantation is used as the last resort for patients with end-stage disease, but allograft rejection is an unsolved problem. Here, we showed that Tk-PQ, a peptide derived from trichosanthin, had an immune-suppressive effect without obvious cytotoxicity in vitro and in a mouse skin allo-transplantation model. In vitro, treatment of Tk-PQ administrated type 2 T helper cell (Th2)/regulatory T-cell (Treg) cytokines, and increased the ratio of CD4+CD25+Foxp3+ Treg by repressing the PI3K/mTOR pathway. In addition, Tk-PQ decreased NF-κB activation to downregulate pro-inflammatory cytokines. Tk-PQ treatment in the mouse skin transplantation model also caused the similar molecular and cellular phenotypes. Furthermore, Tk-PQ enhanced the suppressive function of Treg by increasing Foxp3 expression, and substantially improved allograft survival. These finding demonstrate that Tk-PQ has the potential to be used in clinical allogeneic transplantation.
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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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36
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Lee SW, Park HJ, Van Kaer L, Hong S, Hong S. Graphene oxide polarizes iNKT cells for production of TGFβ and attenuates inflammation in an iNKT cell-mediated sepsis model. Sci Rep 2018; 8:10081. [PMID: 29973666 PMCID: PMC6031608 DOI: 10.1038/s41598-018-28396-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 06/19/2018] [Indexed: 12/12/2022] Open
Abstract
Graphene oxide (GO) modulates the functions of antigen-presenting cells including dendritic cells (DCs). Although carbon nanotubes affect expression of the MHC class I-like CD1d molecule, whether GO can influence immune responses of CD1d-dependent invariant natural killer T (iNKT) cells remains unclear. Here, we investigated the impact of GO on inflammatory responses mediated by α-galactosylceramide (α-GalCer), an iNKT cell agonist. We found that in vivo GO treatment substantially inhibited the capacity of α-GalCer to induce the iNKT cell-mediated trans-activation of and cytokine production by innate and innate-like cells, including DCs, macrophages, NK cells, and γδ T cells. Such effects of GO on α-GalCer-induced inflammatory responses closely correlated with iNKT cell polarization towards TGFβ production, which also explains the capacity of GO to expand regulatory T cells. Interestingly, the absence of TLR4, a receptor for GO, failed to downregulate, and instead partially enhanced the anti-inflammatory activity of GO against α-GalCer-elicited responses, implying negative effects of TLR4 signaling on the anti-inflammatory properties of GO. By employing an α-GalCer-induced sepsis model, we further demonstrated that GO treatment significantly protected mice from α-GalCer-induced lethality. Taken together, we provide strong evidence that GO holds promise as an adjuvant to modulate iNKT cell responses for immunotherapy.
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Affiliation(s)
- Sung Won Lee
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, 05006, Korea
- Graphene Research Institute, Sejong University, Seoul, 05006, Korea
| | - Hyun Jung Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, 05006, Korea
| | - Luc Van Kaer
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Suklyun Hong
- Graphene Research Institute, Sejong University, Seoul, 05006, Korea.
- Department of Physics, Sejong University, Seoul, 05006, Korea.
| | - Seokmann Hong
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, 05006, Korea.
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Mortier C, Govindarajan S, Venken K, Elewaut D. It Takes "Guts" to Cause Joint Inflammation: Role of Innate-Like T Cells. Front Immunol 2018; 9:1489. [PMID: 30008717 PMCID: PMC6033969 DOI: 10.3389/fimmu.2018.01489] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/15/2018] [Indexed: 12/12/2022] Open
Abstract
Innate-like T cells such as invariant natural killer T (iNKT) cells and mucosal-associated T (MAIT) cells, characterized by a semi-invariant T cell receptor and restriction toward MHC-like molecules (CD1 and MR1 respectively), are a unique unconventional immune subset acting at the interface of innate and adaptive immunity. Highly represented at barrier sites and capable of rapidly producing substantial amounts of cytokines, they serve a pivotal role as first-line responders against microbial infections. In contrast, it was demonstrated that innate-like T cells can be skewed toward a predominant pro-inflammatory state and are consequently involved in a number of autoimmune and inflammatory diseases like inflammatory bowel diseases and rheumatic disorders, such as spondyloarthritis (SpA) and rheumatoid arthritis. Interestingly, there is link between gut and joint disease as they often co-incide and share certain aspects of the pathogenesis such as established genetic risk factors, a critical role for pro-inflammatory cytokines, such as TNF-α, IL-23, and IL-17 and therapeutic susceptibility. In this regard dysregulated IL-23/IL-17 responses appear to be crucial in both debilitating pathologies and innate-like T cells likely act as key player. In this review, we will explore the remarkable features of iNKT cells and MAIT cells, and discuss their contribution to immunity and combined gut-joint disease.
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Affiliation(s)
- Céline Mortier
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Center for Inflammation Research, Ghent University, Ghent, Belgium
| | - Srinath Govindarajan
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Center for Inflammation Research, Ghent University, Ghent, Belgium
| | - Koen Venken
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Center for Inflammation Research, Ghent University, Ghent, Belgium
| | - Dirk Elewaut
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Center for Inflammation Research, Ghent University, Ghent, Belgium
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38
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Garner LC, Klenerman P, Provine NM. Insights Into Mucosal-Associated Invariant T Cell Biology From Studies of Invariant Natural Killer T Cells. Front Immunol 2018; 9:1478. [PMID: 30013556 PMCID: PMC6036249 DOI: 10.3389/fimmu.2018.01478] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 06/14/2018] [Indexed: 12/24/2022] Open
Abstract
Mucosal-associated invariant T (MAIT) cells and invariant natural killer T (iNKT) cells are innate-like T cells that function at the interface between innate and adaptive immunity. They express semi-invariant T cell receptors (TCRs) and recognize unconventional non-peptide ligands bound to the MHC Class I-like molecules MR1 and CD1d, respectively. MAIT cells and iNKT cells exhibit an effector-memory phenotype and are enriched within the liver and at mucosal sites. In humans, MAIT cell frequencies dwarf those of iNKT cells, while in laboratory mouse strains the opposite is true. Upon activation via TCR- or cytokine-dependent pathways, MAIT cells and iNKT cells rapidly produce cytokines and show direct cytotoxic activity. Consequently, they are essential for effective immunity, and alterations in their frequency and function are associated with numerous infectious, inflammatory, and malignant diseases. Due to their abundance in mice and the earlier development of reagents, iNKT cells have been more extensively studied than MAIT cells. This has led to the routine use of iNKT cells as a reference population for the study of MAIT cells, and such an approach has proven very fruitful. However, MAIT cells and iNKT cells show important phenotypic, functional, and developmental differences that are often overlooked. With the recent availability of new tools, most importantly MR1 tetramers, it is now possible to directly study MAIT cells to understand their biology. Therefore, it is timely to compare the phenotype, development, and function of MAIT cells and iNKT cells. In this review, we highlight key areas where MAIT cells show similarity or difference to iNKT cells. In addition, we discuss important avenues for future research within the MAIT cell field, especially where comparison to iNKT cells has proven less informative.
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Affiliation(s)
- Lucy C. Garner
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Paul Klenerman
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Nicholas M. Provine
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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Leishmania donovani mediated higher expression of CCL4 induces differential accumulation of CD4 +CD56 +NKT and CD8 +CD56 +NKT cells at infection site. Cytokine 2018; 110:306-315. [PMID: 29807685 DOI: 10.1016/j.cyto.2018.03.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 02/15/2018] [Accepted: 03/17/2018] [Indexed: 01/20/2023]
Abstract
Sterile cure from visceralized Leishmania donovani (L. donovani) needs Th1 cell support along with the assistance from innate immune cells, NK cells and NKT cells. NKT cells play as a connecting link between innate and adaptive immune cell and support T helper cell function. Earlier, a categorical function of CD56 positive CD4+ or CD8+ NKT cells was reported in visceral leishmaniasis (VL). It was observed in in vitro that CD4+CD56+NKT cells, but not CD8+CD56+NKT cells, were accumulated at the L. donovani infection site. Therefore, in vitro experiments have been carried out to decipher the mechanism behind preferential accumulation of CD4+CD56+NKT cells at infection site. In this study, 1.89 fold higher expression of CCL4/MIP-1β was noticed in infected macrophages. The higher expression of CCL4 was correlated with preferential accumulation of CCR5+CD4+CD56+NKT cells and apoptosis of CD8+CD56+NKT cells at in vitro infection site. The CD4+CD56+NKT cells were also observed expressing TGF-β dominantly. Interaction of CCL4 chemotaxis was interrupted by blocking, which led to drift back the TGF-β producing CD4+CD56+NKT cells and promoted CD8+CD56+NKT cells recruitment in in vitro infection site. CCR5 blockade also reduced CD25 and FoxP3 positive CD4+CD56+NKT cells in in vitro infection site. Therefore, it was concluded that Leishmania promotes strategic expression of CCL4, which alternately attracts CCR5+ cells, mostly expressing regulatory cytokines, at infection site. This reduces the CD8+CD56+NKT cells at infection site through Smad4 mediated TGF-β expression and activation of caspases. Data indicates that L. donovani induces higher expression of CCL4 in host cell to attract CCR5+ cells under its strategic plan to downregulate host immune response.
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Schönrich G, Raftery MJ. CD1-Restricted T Cells During Persistent Virus Infections: "Sympathy for the Devil". Front Immunol 2018; 9:545. [PMID: 29616036 PMCID: PMC5868415 DOI: 10.3389/fimmu.2018.00545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 03/02/2018] [Indexed: 12/12/2022] Open
Abstract
Some of the clinically most important viruses persist in the human host after acute infection. In this situation, the host immune system and the viral pathogen attempt to establish an equilibrium. At best, overt disease is avoided. This attempt may fail, however, resulting in eventual loss of viral control or inadequate immune regulation. Consequently, direct virus-induced tissue damage or immunopathology may occur. The cluster of differentiation 1 (CD1) family of non-classical major histocompatibility complex class I molecules are known to present hydrophobic, primarily lipid antigens. There is ample evidence that both CD1-dependent and CD1-independent mechanisms activate CD1-restricted T cells during persistent virus infections. Sophisticated viral mechanisms subvert these immune responses and help the pathogens to avoid clearance from the host organism. CD1-restricted T cells are not only crucial for the antiviral host defense but may also contribute to tissue damage. This review highlights the two edged role of CD1-restricted T cells in persistent virus infections and summarizes the viral immune evasion mechanisms that target these fascinating immune cells.
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Affiliation(s)
- Günther Schönrich
- Berlin Institute of Health, Institute of Virology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Martin J Raftery
- Berlin Institute of Health, Institute of Virology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
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Oleinika K, Rosser EC, Matei DE, Nistala K, Bosma A, Drozdov I, Mauri C. CD1d-dependent immune suppression mediated by regulatory B cells through modulations of iNKT cells. Nat Commun 2018; 9:684. [PMID: 29449556 PMCID: PMC5814456 DOI: 10.1038/s41467-018-02911-y] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 01/08/2018] [Indexed: 12/22/2022] Open
Abstract
Regulatory B cells (Breg) express high levels of CD1d that presents lipid antigens to invariant natural killer T (iNKT) cells. The function of CD1d in Breg biology and iNKT cell activity during inflammation remains unclear. Here we show, using chimeric mice, cell depletion and adoptive cell transfer, that CD1d–lipid presentation by Bregs induces iNKT cells to secrete interferon (IFN)-γ to contribute, partially, to the downregulation of T helper (Th)1 and Th17-adaptive immune responses and ameliorate experimental arthritis. Mice lacking CD1d-expressing B cells develop exacerbated disease compared to wild-type mice, and fail to respond to treatment with the prototypical iNKT cell agonist α-galactosylceramide. The absence of lipid presentation by B cells alters iNKT cell activation with disruption of metabolism regulation and cytokine responses. Thus, we identify a mechanism by which Bregs restrain excessive inflammation via lipid presentation. Regulatory B cells (Breg) are known to suppress immune responses by secreting interleukin-10 (IL-10). Here the authors show that, alternatively, Bregs may also present lipid antigens on surface CD1d to induce IFN-γ production from invariant natural killer cells to ameliorate experimental arthritis via IL-10-independent pathways.
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Affiliation(s)
- K Oleinika
- Centre for Rheumatology, Division of Medicine, University College London, London, WC1E 6JF, UK.,Division of Infection and Immunity, University College London, London, WC1E 6BT UK, UK
| | - E C Rosser
- Centre for Rheumatology, Division of Medicine, University College London, London, WC1E 6JF, UK.,Infection, Inflammation and Rheumatology Section, Infection, Immunity and Inflammation Programme, UCL Great Ormond Street Institute of Child Health, University College London, London, WC1N 1EH, UK
| | - D E Matei
- Centre for Rheumatology, Division of Medicine, University College London, London, WC1E 6JF, UK
| | - K Nistala
- Centre for Rheumatology, Division of Medicine, University College London, London, WC1E 6JF, UK
| | - A Bosma
- Centre for Rheumatology, Division of Medicine, University College London, London, WC1E 6JF, UK
| | | | - C Mauri
- Centre for Rheumatology, Division of Medicine, University College London, London, WC1E 6JF, UK.
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Sag D, Özkan M, Kronenberg M, Wingender G. Improved Detection of Cytokines Produced by Invariant NKT Cells. Sci Rep 2017; 7:16607. [PMID: 29192280 PMCID: PMC5709402 DOI: 10.1038/s41598-017-16832-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 11/16/2017] [Indexed: 12/01/2022] Open
Abstract
Invariant Natural killer T (iNKT) cells rapidly produce copious amounts of multiple cytokines after in vivo activation, allowing for the direct detection of a number of cytokines directly ex vivo. However, for some cytokines this approach is suboptimal. Here, we report technical variations that allow the improved detection of IL-4, IL-10, IL-13 and IL-17A ex vivo. Furthermore, we describe an alternative approach for stimulation of iNKT cells in vitro that allows a significantly improved detection of cytokines produced by iNKT cells. Together, these protocols allow the detection of iNKT cell cytokines ex vivo and in vitro with increased sensitivity.
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Affiliation(s)
- Duygu Sag
- Izmir Biomedicine and Genome Center (IBG), 35340, Balcova, Izmir, Turkey.,Department of Medical Biology, Faculty of Medicine, Dokuz Eylul University, 35340, Balcova, Izmir, Turkey
| | - Müge Özkan
- Izmir International Biomedicine and Genome Institute (IBG-Izmir), Dokuz Eylul University, 35340, Balcova, Izmir, Turkey
| | - Mitchell Kronenberg
- La Jolla Institute for Allergy and Immunology (LJI), 9420 Athena Circle, La Jolla, CA, 92037, USA.,Division of Biological Sciences, University of California San Diego, La Jolla, CA, 92037, USA
| | - Gerhard Wingender
- Izmir Biomedicine and Genome Center (IBG), 35340, Balcova, Izmir, Turkey. .,La Jolla Institute for Allergy and Immunology (LJI), 9420 Athena Circle, La Jolla, CA, 92037, USA.
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43
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Natural killer T cells in Preeclampsia: An updated review. Biomed Pharmacother 2017; 95:412-418. [DOI: 10.1016/j.biopha.2017.08.077] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/19/2017] [Accepted: 08/19/2017] [Indexed: 12/13/2022] Open
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Guo H, Zhao N, Gao H, He X. Mesenchymal Stem Cells Overexpressing Interleukin-35 Propagate Immunosuppressive Effects in Mice. Scand J Immunol 2017; 86:389-395. [PMID: 28888053 DOI: 10.1111/sji.12613] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 09/04/2017] [Indexed: 12/20/2022]
Affiliation(s)
- H. Guo
- Department of General Surgery; Tianjin Medical University General Hospital; Tianjin China
- Tianjin General Surgery Institute; Tianjin Medical University General Hospital; Tianjin China
| | - N. Zhao
- Tianjin General Surgery Institute; Tianjin Medical University General Hospital; Tianjin China
| | - H. Gao
- Department of General Surgery; Tianjin Medical University General Hospital; Tianjin China
- Tianjin General Surgery Institute; Tianjin Medical University General Hospital; Tianjin China
| | - X. He
- Department of General Surgery; Tianjin Medical University General Hospital; Tianjin China
- Tianjin General Surgery Institute; Tianjin Medical University General Hospital; Tianjin China
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Abstract
The proper restraint of the destructive potential of the immune system is essential for maintaining health. Regulatory T (Treg) cells ensure immune homeostasis through their defining ability to suppress the activation and function of other leukocytes. The expression of the transcription factor forkhead box protein P3 (FOXP3) is a well-recognized characteristic of Treg cells, and FOXP3 is centrally involved in the establishment and maintenance of the Treg cell phenotype. In this Review, we summarize how the expression and activity of FOXP3 are regulated across multiple layers by diverse factors. The therapeutic implications of these topics for cancer and autoimmunity are also discussed.
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46
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Pickup MW, Owens P, Moses HL. TGF-β, Bone Morphogenetic Protein, and Activin Signaling and the Tumor Microenvironment. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a022285. [PMID: 28062564 DOI: 10.1101/cshperspect.a022285] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The cellular and noncellular components surrounding the tumor cells influence many aspects of tumor progression. Transforming growth factor β (TGF-β), bone morphogenetic proteins (BMPs), and activins have been shown to regulate the phenotype and functions of the microenvironment and are attractive targets to attenuate protumorigenic microenvironmental changes. Given the pleiotropic nature of the cytokines involved, a full understanding of their effects on numerous cell types in many contexts is necessary for proper clinical intervention. In this review, we will explore the various effects of TGF-β, BMP, and activin signaling on stromal phenotypes known to associate with cancer progression. We will summarize these findings in the context of their tumor suppressive or promoting effects, as well as the molecular changes that these cytokines induce to influence stromal phenotypes.
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Affiliation(s)
- Michael W Pickup
- Department of Cancer Biology and Vanderbilt-Ingram Comprehensive Cancer Center, Nashville, Tennessee 37232
| | - Philip Owens
- Department of Cancer Biology and Vanderbilt-Ingram Comprehensive Cancer Center, Nashville, Tennessee 37232
| | - Harold L Moses
- Department of Cancer Biology and Vanderbilt-Ingram Comprehensive Cancer Center, Nashville, Tennessee 37232
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Li XF, Dai D, Song XY, Liu JJ, Zhu L, Zhu X, Ma W, Xu W. A different representation of natural T cells and natural killer cells between tumor-infiltrating and periphery lymphocytes in human hepatocellular carcinoma. Oncol Lett 2017; 13:3291-3298. [PMID: 28529568 DOI: 10.3892/ol.2017.5808] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 01/19/2017] [Indexed: 12/18/2022] Open
Abstract
Natural T cells [cluster of differentiation (CD) 3+CD56+] and natural killer (NK) cells (CD3-CD56+) are particularly abundant in the human liver and serve an important role in immune responses in the liver. The aim of the present study was to extensively determine the phenotypic and functional characteristics of natural T and NK cells in human hepatocellular carcinoma (HCC). Tumorous and non-tumorous tissue infiltrating lymphocytes (TILs and NILs, respectively) and peripheral blood mononuclear cells (PBMCs) from patients with hepatocellular carcinoma (HCC) were obtained to determine the frequency and phenotype of natural T/NK cells by a multicolor fluorescence activated cell sorting analysis. The abundance of natural T cells and NK cells was decreased in TILs vs. NILs (natural T cells, 6.315±1.002 vs. 17.16±1.804; NK cells, 6.324±1.559 vs. 14.52±2.336, respectively). However such results were not observed in PBMCs from HCC patients vs. that of healthy donors. Notably, a substantial fraction of the natural T cells (21.96±5.283) in TILs acquired forkhead box P3 (FOXP3) expression, and the FOXP3+ natural T cells lost the expression of interferon-γ and perforin. Conversely, being similar to the conventional FOXP3+ regulatory T cells, the FOXP3+ natural T cells assumed a specific phenotype that was characteristic of CD25+, CD45RO+ and cytotoxic T-lymphocyte-associated protein 4+. Consistent with the phenotypic conversion, the present functional results indicate that FOXP3 expression in natural T cells contributes to the acquisition of a potent immunosuppressive capability. In conclusion, the present study describes a different representation of natural T cells and NK cells in local tumor tissues and in the periphery blood of patients with HCC, and identified a new type of FOXP3-expressing natural T cell spontaneously arising in the TILs of HCC.
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Affiliation(s)
- Xiao-Feng Li
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Dong Dai
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Xiu-Yu Song
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Jian-Jing Liu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Lei Zhu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Xiang Zhu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Wenchao Ma
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
| | - Wengui Xu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Hexi, Tianjin 300060, P.R. China.,National Clinical Research Center of Cancer, Hexi, Tianjin 300060, P.R. China.,Key Laboratory of Cancer Prevention and Therapy, Hexi, Tianjin 300060, P.R. China
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Kelly A, Houston SA, Sherwood E, Casulli J, Travis MA. Regulation of Innate and Adaptive Immunity by TGFβ. Adv Immunol 2017; 134:137-233. [PMID: 28413021 DOI: 10.1016/bs.ai.2017.01.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Immune regulation by cytokines is crucial in maintaining immune homeostasis, promoting responses to infection, resolving inflammation, and promoting immunological memory. Additionally, cytokine responses drive pathology in immune-mediated disease. A crucial cytokine in the regulation of all aspects of an immune response is transforming growth factor beta (TGFβ). Although best known as a crucial regulator of T cell responses, TGFβ plays a vital role in regulating responses mediated by virtually every innate and adaptive immune cell, including dendritic cells, B cells, NK cells, innate lymphoid cells, and granulocytes. Here, we review our current knowledge of how TGFβ regulates the immune system, highlighting the multifunctional nature of TGFβ and how its function can change depending on location and context of action.
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Affiliation(s)
- Aoife Kelly
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Stephanie A Houston
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Eleanor Sherwood
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Joshua Casulli
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Mark A Travis
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom.
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50
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Bianchini E, De Biasi S, Simone AM, Ferraro D, Sola P, Cossarizza A, Pinti M. Invariant natural killer T cells and mucosal-associated invariant T cells in multiple sclerosis. Immunol Lett 2017; 183:1-7. [PMID: 28119072 DOI: 10.1016/j.imlet.2017.01.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 01/17/2017] [Indexed: 12/23/2022]
Abstract
Multiple sclerosis (MS) is a chronic progressive inflammatory demyelinating disorder of the central nervous system, and in several countries is a leading cause of permanent neurological disability in young adults, particularly women. MS is considered an autoimmune disease, caused by an aberrant immune response to environmental triggers in genetically susceptible subjects. However, the contribution of the innate or of the adaptive immune system to the development and progression of the disease has not yet been fully elucidated. Innate-like T lymphocytes are unconventional T cells that bridge the innate and adaptive arms of the immune system, because they use a T cell receptor to sense external ligands, but behave like innate cells when they rapidly respond to stimuli. These cells could play an important role in the pathogenesis of MS. Here, we focus on invariant natural killer T (iNKT) cells and mucosal-associated invariant T (MAIT) cells, and we review the current knowledge on their biology and possible involvement in MS. Although several studies have evaluated the frequency and functions of iNKT and MAIT cells both in MS patients and in experimental mouse models, contradictory observations have been reported, and it is not clear whether they exert a protective or a pro-inflammatory and harmful role. A better understanding of how immune cells are involved in MS, and of their interactions could be of great interest for the development of new therapeutic strategies.
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Affiliation(s)
- Elena Bianchini
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy
| | - Sara De Biasi
- Department of Surgery, Medicine, Dentistry and Morphological Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy
| | - Anna Maria Simone
- Neurology Unit, Department of Biomedical, Metabolic and Neurosciences, Nuovo Ospedale Civile Sant'Agostino Estense, Via P. Giardini 1355, 41126 Modena, Italy
| | - Diana Ferraro
- Neurology Unit, Department of Biomedical, Metabolic and Neurosciences, Nuovo Ospedale Civile Sant'Agostino Estense, Via P. Giardini 1355, 41126 Modena, Italy
| | - Patrizia Sola
- Neurology Unit, Department of Biomedical, Metabolic and Neurosciences, Nuovo Ospedale Civile Sant'Agostino Estense, Via P. Giardini 1355, 41126 Modena, Italy
| | - Andrea Cossarizza
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy.
| | - Marcello Pinti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy
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