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Tai TS, Yang HY, Chuang WC, Huang YW, Ho IC, Tsai CC, Chuang YT. ScRNA-Seq Analyses Define the Role of GATA3 in iNKT Cell Effector Lineage Differentiation. Cells 2024; 13:1073. [PMID: 38920701 PMCID: PMC11201670 DOI: 10.3390/cells13121073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024] Open
Abstract
While the transcription factor GATA-3 is well-established for its crucial role in T cell development, its specific influence on invariant natural killer T (iNKT) cells remains relatively unexplored. Using flow cytometry and single-cell transcriptomic analysis, we demonstrated that GATA-3 deficiency in mice leads to the absence of iNKT2 and iNKT17 cell subsets, as well as an altered distribution of iNKT1 cells. Thymic iNKT cells lacking GATA-3 exhibited diminished expression of PLZF and T-bet, key transcription factors involved in iNKT cell differentiation, and reduced production of Th2, Th17, and cytotoxic effector molecules. Single-cell transcriptomics revealed a comprehensive absence of iNKT17 cells, a substantial reduction in iNKT2 cells, and an increase in iNKT1 cells in GATA-3-deficient thymi. Differential expression analysis highlighted the regulatory role of GATA-3 in T cell activation signaling and altered expression of genes critical for iNKT cell differentiation, such as Icos, Cd127, Eomes, and Zbtb16. Notably, restoration of Icos, but not Cd127, expression could rescue iNKT cell development in GATA-3-deficient mice. In conclusion, our study demonstrates the pivotal role of GATA-3 in orchestrating iNKT cell effector lineage differentiation through the regulation of T cell activation pathways and Icos expression, providing insights into the molecular mechanisms governing iNKT cell development and function.
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Affiliation(s)
- Tzong-Shyuan Tai
- Department of Medical Research and Development, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan;
| | - Huang-Yu Yang
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Advanced Immunology Laboratory, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Wan-Chu Chuang
- Department of Medical Research, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - Yu-Wen Huang
- Department of Medical Research, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - I-Cheng Ho
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, 60 Fenwood Road, Boston, MA 02115, USA;
- Harvard Medical School, 60 Fenwood Road, Boston, MA 02115, USA
| | - Ching-Chung Tsai
- Department of Pediatrics, E-Da Hospital, I-Shou University, Kaohsiung City 82445, Taiwan
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung City 82445, Taiwan
| | - Ya-Ting Chuang
- Department of Medical Research, National Taiwan University Hospital, Taipei 10002, Taiwan
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2
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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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3
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Londregan J, Maslanka J, Goldman N, Somerville J, Riggs JE. IgD ligation allows peritoneal cavity B cell proliferation. Immunobiology 2022; 227:152181. [PMID: 35077917 PMCID: PMC8918009 DOI: 10.1016/j.imbio.2022.152181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/24/2021] [Accepted: 01/17/2022] [Indexed: 11/19/2022]
Abstract
Atypical cytokine production and immune cell subset ratios, particularly those that include high proportions of macrophages, characterize tumor microenvironments (TMEs). TMEs can be modeled by culturing peritoneal cavity (PerC) cells which have a high macrophage to lymphocyte ratio. With TCR or BCR ligation, PerC lymphocyte proliferation is tempered by macrophages. However, PHA (T cells) and anti-CD40 (B cells) are activators that induce proliferation. Herein, we report that ligating IgD, in contrast to IgM, triggers PerC B cell proliferation. IL-4 addition enhanced the IgD response for BALB/c PerC B cells but suppressed that of C57BL/6 mice. Intriguingly, concurrent ligation of IgD and CD3ε rescued a PerC T cell proliferative response. These results serve to expand the list of targets for promoting cellular and humoral immunity in conditions that model macrophage-rich TMEs.
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Affiliation(s)
| | - Jeffrey Maslanka
- Biology Department, Rider University, Lawrenceville, NJ 08648, USA
| | - Naomi Goldman
- Biology Department, Rider University, Lawrenceville, NJ 08648, USA
| | - John Somerville
- Biology Department, Rider University, Lawrenceville, NJ 08648, USA
| | - James E Riggs
- Biology Department, Rider University, Lawrenceville, NJ 08648, USA.
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4
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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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5
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Chen L, Ishigami T, Doi H, Arakawa K, Tamura K. Gut microbiota and atherosclerosis: role of B cell for atherosclerosis focusing on the gut-immune-B2 cell axis. J Mol Med (Berl) 2020; 98:1235-1244. [PMID: 32737524 PMCID: PMC7447622 DOI: 10.1007/s00109-020-01936-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 05/13/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023]
Abstract
Atherosclerosis is the leading cause of cardiovascular mortality and morbidity worldwide and is described as a complex disease involving several different cell types and their molecular products. Recent studies have revealed that atherosclerosis arises from a systemic inflammatory process, including the accumulation and activities of various immune cells. However, the immune system is a complicated network made up of many cell types, hundreds of bioactive cytokines, and millions of different antigens, making it challenging to readily define the associated mechanism of atherosclerosis. Nevertheless, we previously reported a potential persistent inflammatory process underlying atherosclerosis development, centered on a pathological humoral immune response between commensal microbes and activated subpopulations of substantial B cells in the vicinity of the arterial adventitia. Accumulating evidence has indicated the importance of gut microbiota in atherosclerosis development. Commensal microbiota are considered important regulators of immunity and metabolism and also to be possible antigenic sources for atherosclerosis development. However, the interplay between gut microbiota and metabolism with regard to the modulation of atherosclerosis-associated immune responses remains poorly understood. Here, we review the mechanisms by which the gut microbiota may influence atherogenesis, with particular focus on humoral immunity and B cells, especially the gut-immune-B2 cell axis. Under high-fat and high-calorie conditions, signals driven by the intestinal microbiota via the TLR signaling pathway cause B2 cells in the spleen to become functionally active and activated B2 cells then modify responses such as antibody production (generation of active antibodies IgG and IgG3), thereby contributing to the development of atherosclerosis. On the other hand, intestinal microbiota also resulted in recruitment and ectopic activation of B2 cells via the TLR signaling pathway in perivascular adipose tissue (PVAT), and, subsequently, an increase in circulating IgG and IgG3 led to the enhanced disease development. This is a potential link between microbiota alterations and B cells in the context of atherosclerosis. ![]()
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Affiliation(s)
- Lin Chen
- Department of Medical Science and Cardio-Renal Medicine, Graduate School of Medicine, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan.,Department of Cardiology, Sir Run Run Hospital, Nanjing Medical University, Long Mian Avenue 109 Jiangning, Nanjing, Jiangsu, China
| | - Tomoaki Ishigami
- Department of Medical Science and Cardio-Renal Medicine, Graduate School of Medicine, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan.
| | - Hiroshi Doi
- Department of Medical Science and Cardio-Renal Medicine, Graduate School of Medicine, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan
| | - Kentaro Arakawa
- Department of Medical Science and Cardio-Renal Medicine, Graduate School of Medicine, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardio-Renal Medicine, Graduate School of Medicine, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan
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6
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Huang W, He W, Shi X, He X, Dou L, Gao Y. The Role of CD1d and MR1 Restricted T Cells in the Liver. Front Immunol 2018; 9:2424. [PMID: 30425710 PMCID: PMC6218621 DOI: 10.3389/fimmu.2018.02424] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 10/01/2018] [Indexed: 12/17/2022] Open
Abstract
The liver is one of the most important immunological organs that remains tolerogenic in homeostasis yet promotes rapid responses to pathogens in the presence of a systemic infection. The composition of leucocytes in the liver is highly distinct from that of the blood and other lymphoid organs, particularly with respect to enrichment of innate T cells, i.e., invariant NKT cells (iNKT cells) and Mucosal-Associated Invariant T cells (MAIT cells). In recent years, studies have revealed insights into their biology and potential roles in maintaining the immune-environment in the liver. As the primary liver-resident immune cells, they are emerging as significant players in the human immune system and are associated with an increasing number of clinical diseases. As such, innate T cells are promising targets for modifying host defense and inflammation of various liver diseases, including viral, autoimmune, and those of tumor origin. In this review, we emphasize and discuss some of the recent discoveries and advances in the biology of innate T cells, their recruitment and diversity in the liver, and their role in various liver diseases, postulating on their potential application in immunotherapy.
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Affiliation(s)
- Wenyong Huang
- Organ Transplantation Unit, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenjing He
- Organ Transplantation Unit, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaomin Shi
- Organ Transplantation Unit, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoshun He
- Organ Transplantation Unit, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lang Dou
- Organ Transplantation Unit, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yifang Gao
- Organ Transplantation Unit, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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7
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Tsay GJ, Zouali M. The Interplay Between Innate-Like B Cells and Other Cell Types in Autoimmunity. Front Immunol 2018; 9:1064. [PMID: 29868023 PMCID: PMC5964140 DOI: 10.3389/fimmu.2018.01064] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 04/27/2018] [Indexed: 12/12/2022] Open
Abstract
Studies performed in animal models and in humans indicate that the innate arm of the immune system provides an essential role in the initial protection against potential insults and in maintaining tolerance to self-antigens. In the B cell compartment, several subsets engage in both adaptive and innate functions. Whereas B cell subsets are recognized to play important roles in autoimmune diseases, understanding the intricacies of their effector functions remains challenging. In addition to B-1a cells and marginal zone B cells, the B cell compartment comprises other B cells with innate-like functions, including innate response activator B cells, T-bet positive B cells, natural killer-like B cells, IL-17-producing B cells, and human self-reactive VH4-34-expressing B cells. Herein, we summarize the functions of recently described B cell populations that can exert innate-like roles in both animal models and humans. We also highlight the importance of the cross talk between innate-like B cells and other adaptive and innate branches of the immune system in various autoimmune and inflammatory diseases. In as much as innate immunity seems to be important in resolving inflammation, it is possible that targeting certain innate-like B cell subsets could represent a novel therapeutic approach for inducing resolution of inflammation of autoimmune and inflammatory responses.
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Affiliation(s)
- Gregory J Tsay
- Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.,College of Medicine, China Medical University, Taichung, Taiwan
| | - Moncef Zouali
- INSERM, U1132, Paris, France.,Université Paris Diderot, Université Sorbonne Paris Cité, Paris, France
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8
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Lang ML. The Influence of Invariant Natural Killer T Cells on Humoral Immunity to T-Dependent and -Independent Antigens. Front Immunol 2018. [PMID: 29520280 PMCID: PMC5827355 DOI: 10.3389/fimmu.2018.00305] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Vaccination with CD1d-binding glycolipid adjuvants and co-administered protein, lipid, and carbohydrate antigens leads to invariant natural killer T (NKT) cell-dependent enhancement of protective B cell responses. NKT cell activation boosts the establishment of protein antigen-specific B cell memory and long-lived plasma cell (LLPC) compartments. NKT cells may exert a similar effect on some carbohydrate-specific B cells, but not lipid-specific B cells. The mechanisms of action of NKT cells on B cell responsiveness and subsequent differentiation into memory B cells and LLPC is dependent on CD1d expression by dendritic cells and B cells that can co-present glycolipids on CD1d and antigen-derived peptide on MHCII. CD1d/glycolipid-activated NKT cells are able to provide help to B cells in a manner dependent on cognate and non-cognate interactions. More recently, a glycolipid-expanded subset of IL-21-secreting NKT cells known as NKT follicular helper cells has been suggested to be a driver of NKT-enhanced humoral immunity. This review summarizes established and recent findings on how NKT cells impact humoral immunity and suggests possible areas of investigation that may allow the incorporation of NKT-activating agents into vaccine adjuvant platforms.
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Affiliation(s)
- Mark L Lang
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
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9
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Shissler SC, Lee MS, Webb TJ. Mixed Signals: Co-Stimulation in Invariant Natural Killer T Cell-Mediated Cancer Immunotherapy. Front Immunol 2017; 8:1447. [PMID: 29163518 PMCID: PMC5671952 DOI: 10.3389/fimmu.2017.01447] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 10/17/2017] [Indexed: 12/31/2022] Open
Abstract
Invariant natural killer T (iNKT) cells are an integral component of the immune system and play an important role in antitumor immunity. Upon activation, iNKT cells can directly kill malignant cells as well as rapidly produce cytokines that stimulate other immune cells, making them a front line defense against tumorigenesis. Unfortunately, iNKT cell number and activity are reduced in multiple cancer types. This anergy is often associated with upregulation of co-inhibitory markers such as programmed death-1. Similar to conventional T cells, iNKT cells are influenced by the conditions of their activation. Conventional T cells receive signals through the following three types of receptors: (1) T cell receptor (TCR), (2) co-stimulation molecules, and (3) cytokine receptors. Unlike conventional T cells, which recognize peptide antigen presented by MHC class I or II, the TCRs of iNKT cells recognize lipid antigen in the context of the antigen presentation molecule CD1d (Signal 1). Co-stimulatory molecules can positively and negatively influence iNKT cell activation and function and skew the immune response (Signal 2). This study will review the background of iNKT cells and their co-stimulatory requirements for general function and in antitumor immunity. We will explore the impact of monoclonal antibody administration for both blocking inhibitory pathways and engaging stimulatory pathways on iNKT cell-mediated antitumor immunity. This review will highlight the incorporation of co-stimulatory molecules in antitumor dendritic cell vaccine strategies. The use of co-stimulatory intracellular signaling domains in chimeric antigen receptor-iNKT therapy will be assessed. Finally, we will explore the influence of innate-like receptors and modification of immunosuppressive cytokines (Signal 3) on cancer immunotherapy.
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Affiliation(s)
- Susannah C Shissler
- Department of Microbiology and Immunology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Michael S Lee
- Department of Microbiology and Immunology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Tonya J Webb
- Department of Microbiology and Immunology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States
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10
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Keller CW, Freigang S, Lünemann JD. Reciprocal Crosstalk between Dendritic Cells and Natural Killer T Cells: Mechanisms and Therapeutic Potential. Front Immunol 2017; 8:570. [PMID: 28596767 PMCID: PMC5442181 DOI: 10.3389/fimmu.2017.00570] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 04/28/2017] [Indexed: 12/23/2022] Open
Abstract
Natural killer T cells carrying a highly conserved, semi-invariant T cell receptor (TCR) [invariant natural killer T (iNKT) cells] are a subset of unconventional T lymphocytes that recognize glycolipids presented by CD1d molecules. Although CD1d is expressed on a variety of hematopoietic and non-hematopoietic cells, dendritic cells (DCs) are key presenters of glycolipid antigen in vivo. When stimulated through their TCR, iNKT cells rapidly secrete copious amounts of cytokines and induce maturation of DCs, thereby facilitating coordinated stimulation of innate and adaptive immune responses. The bidirectional crosstalk between DCs and iNKT cells determines the functional outcome of iNKT cell-targeted responses and iNKT cell agonists are used and currently being evaluated as adjuvants to enhance the efficacy of antitumor immunotherapy. This review illustrates mechanistic underpinnings of reciprocal DCs and iNKT cell interactions and discusses how those can be harnessed for cancer therapy.
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Affiliation(s)
- Christian W Keller
- Institute of Experimental Immunology, Laboratory of Neuroinflammation, University of Zurich, Zurich, Switzerland
| | - Stefan Freigang
- Institute of Pathology, Laboratory of Immunopathology, University of Bern, Bern, Switzerland
| | - Jan D Lünemann
- Institute of Experimental Immunology, Laboratory of Neuroinflammation, University of Zurich, Zurich, Switzerland.,Department of Neurology, University Hospital Zurich, Zurich, Switzerland
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11
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Huang Y, Getahun A, Heiser RA, Detanico TO, Aviszus K, Kirchenbaum GA, Casper TL, Huang C, Aydintug MK, Carding SR, Ikuta K, Huang H, Wysocki LJ, Cambier JC, O'Brien RL, Born WK. γδ T Cells Shape Preimmune Peripheral B Cell Populations. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2016; 196:217-31. [PMID: 26582947 PMCID: PMC4684964 DOI: 10.4049/jimmunol.1501064] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 10/23/2015] [Indexed: 11/19/2022]
Abstract
We previously reported that selective ablation of certain γδ T cell subsets, rather than removal of all γδ T cells, strongly affects serum Ab levels in nonimmunized mice. This type of manipulation also changed T cells, including residual γδ T cells, revealing some interdependence of γδ T cell populations. For example, in mice lacking Vγ4(+) and Vγ6(+) γδ T cells (B6.TCR-Vγ4(-/-)/6(-/-)), we observed expanded Vγ1(+) cells, which changed in composition and activation and produced more IL-4 upon stimulation in vitro, increased IL-4 production by αβ T cells as well as spontaneous germinal center formation in the spleen, and elevated serum Ig and autoantibodies. We therefore examined B cell populations in this and other γδ-deficient mouse strains. Whereas immature bone marrow B cells remained largely unchanged, peripheral B cells underwent several changes. Specifically, transitional and mature B cells in the spleen of B6.TCR-Vγ4(-/-)/6(-/-) mice and other peripheral B cell populations were diminished, most of all splenic marginal zone (MZ) B cells. However, relative frequencies and absolute numbers of Ab-producing cells, as well as serum levels of Abs, IL-4, and BAFF, were increased. Cell transfers confirmed that these changes are directly dependent on the altered γδ T cells in this strain and on their enhanced potential of producing IL-4. Further evidence suggests the possibility of direct interactions between γδ T cells and B cells in the splenic MZ. Taken together, these data demonstrate the capability of γδ T cells of modulating size and productivity of preimmune peripheral B cell populations.
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Affiliation(s)
- Yafei Huang
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206; Joint Laboratory for Stem Cell Engineering and Technology Transfer, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Andrew Getahun
- Department of Immunology and Microbiology, University of Colorado Health Sciences Center, Aurora, CO 80045
| | - Ryan A Heiser
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - Thiago O Detanico
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - Katja Aviszus
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - Greg A Kirchenbaum
- Department of Immunology and Microbiology, University of Colorado Health Sciences Center, Aurora, CO 80045
| | - Tamara L Casper
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - Chunjian Huang
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - M Kemal Aydintug
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - Simon R Carding
- Institute of Food Research and Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UG, United Kingdom; and
| | - Koichi Ikuta
- Laboratory of Biological Protection, Department of Biological Responses, Institute for Virus Research, Kyoto University, Kyoto 606-8507, Japan
| | - Hua Huang
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206
| | - Lawrence J Wysocki
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206; Department of Immunology and Microbiology, University of Colorado Health Sciences Center, Aurora, CO 80045
| | - John C Cambier
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206; Department of Immunology and Microbiology, University of Colorado Health Sciences Center, Aurora, CO 80045
| | - Rebecca L O'Brien
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206; Department of Immunology and Microbiology, University of Colorado Health Sciences Center, Aurora, CO 80045
| | - Willi K Born
- Department of Biomedical Research, National Jewish Health, Denver, CO 80206; Department of Immunology and Microbiology, University of Colorado Health Sciences Center, Aurora, CO 80045;
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12
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Aberrant presentation of self-lipids by autoimmune B cells depletes peripheral iNKT cells. Cell Rep 2014; 9:24-31. [PMID: 25263549 DOI: 10.1016/j.celrep.2014.08.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 06/04/2014] [Accepted: 08/20/2014] [Indexed: 11/23/2022] Open
Abstract
Invariant natural killer T (iNKT) cells provide cognate help via CD1d to lipid antigen-presenting B cells for antibody production, but whether B cells reciprocally regulate iNKT cells remains largely unexplored. Here, we found peripheral, but not thymic, iNKT cells to be numerically reduced in autoimmune mice lacking Fas specifically in B cells. The residual iNKT cells were antigenically overstimulated, had altered cytokine production, and manifested enhanced proliferation and apoptosis. B cell-specific ablation of CD1d ameliorated these iNKT defects, suggesting that inappropriate presentation of CD1d-restricted self-lipids by autoimmune B cell-depleted peripheral iNKT cells. CD1d(+) autoimmune B cells have reduced α-galactosidase A expression and, as revealed by lipidomic profiling, altered lipidome with aberrant accumulation of certain self-lipids and reduction of others. These findings unveil a critical link between autoimmunity, B cell lipidome, and the maintenance of peripheral iNKT cells and highlight an essential homeostatic function of B cells beyond antibody production.
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13
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Abstract
It was reported over a decade previously that CD1d-restricted Natural Killer T (NKT) cells could interact with CD1d-expressing B cells and facilitate antibody secretion. Since then, several studies have observed that NKT cells can provide B-cell help for production of antibody against model and pathogen-derived glycolipids, carbohydrates and proteins. In regard to T cell-dependent protein antigens, it is still not entirely clear to what extent cognate interactions between CD1d-expressing B cells and NKT cells contribute to initial and long-lived B-cell responses that are characteristic of such antigens. In this editorial, we review evidence that NKT cells provide CD1d-dependent cognate and non-cognate forms of B-cell help following immunization with protein antigen. Elucidating these mechanisms will be important for harnessing NKT cells during vaccination.
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Affiliation(s)
- Mark L Lang
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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Singh AK, Gaur P, Das SN. Natural killer T cell anergy, co-stimulatory molecules and immunotherapeutic interventions. Hum Immunol 2013; 75:250-60. [PMID: 24373798 DOI: 10.1016/j.humimm.2013.12.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 10/28/2013] [Accepted: 12/15/2013] [Indexed: 01/05/2023]
Abstract
Natural killer T (NKT) cells are a unique subset of glycolipid-reactive T lymphocytes that share properties with natural killer (NK) cells. These lymphocytes can produce array of cytokines and chemokines that modulate the immune response, and play a pivotal role in cancer, autoimmunity, infection and inflammation. Owing to these properties, NKT cells have gained attentions for its potential use in antitumor immunotherapies. To date several NKT cell-based clinical trials have been performed in patients with cancer using its potent ligand α-galactosylceramide (α-GalCer). However, inconsistent therapeutic benefit, and inevitable health risks associated with drug dose and NKT cell activation have been observed. α-GalCer-activated NKT cells become anergic and produce both Th1 and Th2 cytokines that may function antagonistically, limiting the desired effector functions. Besides, various co-stimulatory and signaling molecules such as programmed death-1 (PD-1; CD279), casitas B-cell lymphoma-b (Cbl-b) and CARMA1 have been shown to be implicated in the induction of NKT cell anergy. In this review, we discuss the role of such key regulators and their functional mechanisms that may facilitate the development of improved approaches to overcome NKT cell anergy. In addition, we describe the evidences indicating that tailored-ligands can optimally activate NKT cells to obtain desired immune responses.
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Affiliation(s)
- Avadhesh Kumar Singh
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India.
| | - Poonam Gaur
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India.
| | - Satya N Das
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India.
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15
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Aspeslagh S, Nemčovič M, Pauwels N, Venken K, Wang J, Calenbergh SV, Zajonc DM, Elewaut D. Enhanced TCR footprint by a novel glycolipid increases NKT-dependent tumor protection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2013; 191:2916-25. [PMID: 23960235 PMCID: PMC3817951 DOI: 10.4049/jimmunol.1203134] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
NKT cells, a unique type of regulatory T cells, respond to structurally diverse glycolipids presented by CD1d. Although it was previously thought that recognition of glycolipids such as α-galactosylceramide (α-GalCer) by the NKT cell TCR (NKTCR) obeys a key-lock principle, it is now clear this interaction is much more flexible. In this article, we report the structure-function analysis of a series of novel 6''-OH analogs of α-GalCer with more potent antitumor characteristics. Surprisingly, one of the novel carbamate analogs, α-GalCer-6''-(pyridin-4-yl)carbamate, formed novel interactions with the NKTCR. This interaction was associated with an extremely high level of Th1 polarization and superior antitumor responses. These data highlight the in vivo relevance of adding aromatic moieties to the 6''-OH position of the sugar and additionally show that judiciously chosen linkers are a promising strategy to generate strong Th1-polarizing glycolipids through increased binding either to CD1d or to NKTCR.
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Affiliation(s)
- Sandrine Aspeslagh
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Marek Nemčovič
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Nora Pauwels
- Laboratory for Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Koen Venken
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Jing Wang
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Serge Van Calenbergh
- Laboratory for Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Dirk M. Zajonc
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Dirk Elewaut
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
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Venken K, Decruy T, Aspeslagh S, Van Calenbergh S, Lambrecht BN, Elewaut D. Bacterial CD1d-restricted glycolipids induce IL-10 production by human regulatory T cells upon cross-talk with invariant NKT cells. THE JOURNAL OF IMMUNOLOGY 2013; 191:2174-83. [PMID: 23898038 DOI: 10.4049/jimmunol.1300562] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Invariant NKT (iNKT) cells and CD4(+)CD25(+)FOXP3(+) regulatory T cells (Tregs) are important immune regulatory T cells with Ag reactivity to glycolipids and peptides, respectively. However, the functional interplay between these cells in humans is poorly understood. We show that Tregs suppress iNKT cell proliferation induced by CD1d-restricted glycolipids, including bacterial-derived diacylglycerols, as well as by innate-like activation. Inhibition was related to the potency of iNKT agonists, making diacylglycerol iNKT responses very prone to suppression. Cytokine production by iNKT cells was differentially modulated by Tregs because IL-4 production was reduced more profoundly compared with IFN-γ. A compelling observation was the significant production of IL-10 by Tregs after cell contact with iNKT cells, in particular in the presence of bacterial diacylglycerols. These iNKT-primed Tregs showed increased FOXP3 expression and superior suppressive function. Suppression of iNKT cell responses, but not conventional T cell responses, was IL-10 dependent, suggesting that there is a clear difference in mechanism between the Treg-mediated inhibition of these cell types. Our data highlight a physiologically relevant interaction between human iNKT and Tregs upon pathogen-derived glycolipid recognition that has a significant impact on the design of iNKT cell-based therapeutics.
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Affiliation(s)
- Koen Venken
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
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17
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Zeng SG, Ghnewa YG, O'Reilly VP, Lyons VG, Atzberger A, Hogan AE, Exley MA, Doherty DG. Human invariant NKT cell subsets differentially promote differentiation, antibody production, and T cell stimulation by B cells in vitro. THE JOURNAL OF IMMUNOLOGY 2013; 191:1666-76. [PMID: 23851681 DOI: 10.4049/jimmunol.1202223] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Invariant NK T (iNKT) cells can provide help for B cell activation and Ab production. Because B cells are also capable of cytokine production, Ag presentation, and T cell activation, we hypothesized that iNKT cells will also influence these activities. Furthermore, subsets of iNKT cells based on CD4 and CD8 expression that have distinct functional activities may differentially affect B cell functions. We investigated the effects of coculturing expanded human CD4(+), CD8α(+), and CD4(-)CD8α(-) double-negative (DN) iNKT cells with autologous peripheral B cells in vitro. All iNKT cell subsets induced IgM, IgA, and IgG release by B cells without needing the iNKT cell agonist ligand α-galactosylceramide. Additionally, CD4(+) iNKT cells induced expansions of cells with phenotypes of regulatory B cells. When cocultured with α-galactosylceramide-pulsed B cells, CD4(+) and DN iNKT cells secreted Th1 and Th2 cytokines but at 10-1000-fold lower levels than when cultured with dendritic cells. CD4(+) iNKT cells reciprocally induced IL-4 and IL-10 production by B cells. DN iNKT cells expressed the cytotoxic degranulation marker CD107a upon exposure to B cells. Remarkably, whereas iNKT cell subsets could induce CD40 and CD86 expression by B cells, iNKT cell-matured B cells were unable to drive proliferation of autologous and alloreactive conventional T cells, as seen with B cells cultured in the absence of iNKT cells. Therefore, human CD4(+), CD8α(+), and DN iNKT cells can differentially promote and regulate the induction of Ab and T cell responses by B cells.
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Affiliation(s)
- Shijuan Grace Zeng
- Department of Immunology, School of Medicine, Trinity College Dublin, Dublin 8, Ireland
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18
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Brennan PJ, Brigl M, Brenner MB. Invariant natural killer T cells: an innate activation scheme linked to diverse effector functions. Nat Rev Immunol 2013; 13:101-17. [PMID: 23334244 DOI: 10.1038/nri3369] [Citation(s) in RCA: 604] [Impact Index Per Article: 54.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Invariant natural killer T (iNKT) cells exist in a 'poised effector' state, which enables them to rapidly produce cytokines following activation. Using a nearly monospecific T cell receptor, they recognize self and foreign lipid antigens presented by CD1d in a conserved manner, but their activation can catalyse a spectrum of polarized immune responses. In this Review, we discuss recent advances in our understanding of the innate-like mechanisms underlying iNKT cell activation and describe how lipid antigens, the inflammatory milieu and interactions with other immune cell subsets regulate the functions of iNKT cells in health and disease.
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Affiliation(s)
- Patrick J Brennan
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Innate B cell helpers reveal novel types of antibody responses. Nat Immunol 2013; 14:119-26. [PMID: 23334833 DOI: 10.1038/ni.2511] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 12/04/2012] [Indexed: 12/12/2022]
Abstract
Antibody responses are classified according to whether B cells receive help from T cells--that is, whether they are thymus-dependent (TD) responses or thymus-independent (TI) responses. The latter can be elicited by microbial ligands (TI type 1) or by extensive crosslinking of the B cell antigen receptor (BCR; TI type 2). The hallmark of a TD response is the induction of germinal centers in which follicular helper T cells (T(FH) cells) select B cells with somatically mutated high-affinity BCRs to become memory cells. Studies have shown that B cells can also receive innate TD help from natural killer T cells (NKT cells) and innate TI help from cells such as neutrophils but that the outcome of such help differs from conventional TD and TI responses. Here we update the classification of antibody responses to take into account these emerging types of B cell helpers.
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Zhang H, Zhu Z, Meadows GG. Chronic alcohol consumption impairs distribution and compromises circulation of B cells in B16BL6 melanoma-bearing mice. THE JOURNAL OF IMMUNOLOGY 2012; 189:1340-8. [PMID: 22753935 DOI: 10.4049/jimmunol.1200442] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Accumulating research indicates that B cells are involved in anti-tumor immunity. Chronic alcohol consumption is associated with decreased survival of cancer patients. The effect of alcohol consumption on B cells in tumor-bearing hosts is unknown. Results in melanoma-bearing mice showed that chronic alcohol consumption did not alter the percentage and number of B cells in bone marrow, spleen, and lymph nodes but dramatically decreased B cells in the peripheral blood. Alcohol consumption did not alter the development of B cells in the bone marrow and did not affect follicular B cells in the spleen; however, it increased T1 B cells and decreased marginal zone B cells in the spleen. Alcohol consumption also decreased mature B cells in the blood. It did not alter the chemotactic capacity of plasma to facilitate migration of splenocytes or the chemotactic response of splenocytes to CXCL13 and CCL21. However, the response of splenocytes to sphingosine-1-phosphate was impaired in alcohol-consuming, melanoma-bearing mice. The expression of sphingosine-1-phosphate receptor-1 (S1PR1) and sphingosine-1-phosphate lyase-1 (SPL1) in splenocytes was downregulated. Taken together, these results indicate that chronic alcohol consumption decreases peripheral blood B cells by compromising B cell egress from the spleen. The downregulation of S1PR1 and SPL1 expression in alcohol-consuming, melanoma-bearing mice could be associated with compromised egress of B cells from the spleen.
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Affiliation(s)
- Hui Zhang
- Department of Pharmaceutical Sciences, College of Pharmacy, Washington State University, Pullman, WA 99164, USA.
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