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Taheri MM, Javan F, Poudineh M, Athari SS. CAR-NKT Cells in Asthma: Use of NKT as a Promising Cell for CAR Therapy. Clin Rev Allergy Immunol 2024:10.1007/s12016-024-08998-0. [PMID: 38995478 DOI: 10.1007/s12016-024-08998-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2024] [Indexed: 07/13/2024]
Abstract
NKT cells, unique lymphocytes bridging innate and adaptive immunity, offer significant potential for managing inflammatory disorders like asthma. Activating iNKT induces increasing IFN-γ, TGF-β, IL-2, and IL-10 potentially suppressing allergic asthma. However, their immunomodulatory effects, including granzyme-perforin-mediated cytotoxicity, and expression of TIM-3 and TRAIL warrant careful consideration and targeted approaches. Although CAR-T cell therapy has achieved remarkable success in treating certain cancers, its limitations necessitate exploring alternative approaches. In this context, CAR-NKT cells emerge as a promising approach for overcoming these challenges, potentially achieving safer and more effective immunotherapies. Strategies involve targeting distinct IgE-receptors and their interactions with CAR-NKT cells, potentially disrupting allergen-mast cell/basophil interactions and preventing inflammatory cytokine release. Additionally, targeting immune checkpoints like PDL-2, inducible ICOS, FASL, CTLA-4, and CD137 or dectin-1 for fungal asthma could further modulate immune responses. Furthermore, artificial intelligence and machine learning hold immense promise for revolutionizing NKT cell-based asthma therapy. AI can optimize CAR-NKT cell functionalities, design personalized treatment strategies, and unlock a future of precise and effective care. This review discusses various approaches to enhancing CAR-NKT cell efficacy and longevity, along with the challenges and opportunities they present in the treatment of allergic asthma.
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Affiliation(s)
| | - Fatemeh Javan
- Student Research Committee, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohadeseh Poudineh
- Student Research Committee, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Seyyed Shamsadin Athari
- Cancer Gene therapy Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.
- Department of Immunology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
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2
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Mohammed AD, Ball RAW, Jolly A, Nagarkatti P, Nagarkatti M, Kubinak JL. Studying the cellular basis of small bowel enteropathy using high-parameter flow cytometry in mouse models of primary antibody deficiency. Front Immunol 2024; 15:1278197. [PMID: 38803492 PMCID: PMC11128607 DOI: 10.3389/fimmu.2024.1278197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 03/28/2024] [Indexed: 05/29/2024] Open
Abstract
Background Primary immunodeficiencies are heritable defects in immune system function. Antibody deficiency is the most common form of primary immunodeficiency in humans, can be caused by abnormalities in both the development and activation of B cells, and may result from B-cell-intrinsic defects or defective responses by other cells relevant to humoral immunity. Inflammatory gastrointestinal complications are commonly observed in antibody-deficient patients, but the underlying immune mechanisms driving this are largely undefined. Methods In this study, several mouse strains reflecting a spectrum of primary antibody deficiency (IgA-/-, Aicda-/-, CD19-/- and JH -/-) were used to generate a functional small-bowel-specific cellular atlas using a novel high-parameter flow cytometry approach that allows for the enumeration of 59 unique cell subsets. Using this cellular atlas, we generated a direct and quantifiable estimate of immune dysregulation. This estimate was then used to identify specific immune factors most predictive of the severity of inflammatory disease of the small bowel (small bowel enteropathy). Results Results from our experiments indicate that the severity of primary antibody deficiency positively correlates with the degree of immune dysregulation that can be expected to develop in an individual. In the SI of mice, immune dysregulation is primarily explained by defective homeostatic responses in T cell and invariant natural killer-like T (iNKT) cell subsets. These defects are strongly correlated with abnormalities in the balance between protein (MHCII-mediated) versus lipid (CD1d-mediated) antigen presentation by intestinal epithelial cells (IECs) and intestinal stem cells (ISCs), respectively. Conclusions Multivariate statistical approaches can be used to obtain quantifiable estimates of immune dysregulation based on high-parameter flow cytometry readouts of immune function. Using one such estimate, we reveal a previously unrecognized tradeoff between iNKT cell activation and type 1 immunity that underlies disease in the small bowel. The balance between protein/lipid antigen presentation by ISCs may play a crucial role in regulating this balance and thereby suppressing inflammatory disease in the small bowel.
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Affiliation(s)
| | | | | | | | | | - Jason L. Kubinak
- Pathology, Microbiology, and Immunology Department, University of South Carolina School of Medicine, Columbia, SC, United States
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3
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Mohammed AD, Ball RAW, Jolly A, Nagarkatti P, Nagarkatti M, Kubinak JL. Studying the cellular basis of small bowel enteropathy using high-parameter flow cytometry in mouse models of primary antibody deficiency. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.25.577009. [PMID: 38352330 PMCID: PMC10862736 DOI: 10.1101/2024.01.25.577009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Background Primary immunodeficiencies are heritable defects in immune system function. Antibody deficiency is the most common form of primary immunodeficiency in humans, can be caused by abnormalities in both the development and activation of B cells, and may result from B-cell-intrinsic defects or defective responses by other cells relevant to humoral immunity. Inflammatory gastrointestinal complications are commonly observed in antibody-deficient patients, but the underlying immune mechanisms driving this are largely undefined. Methods In this study, several mouse strains reflecting a spectrum of primary antibody deficiency (IgA -/- , Aicda -/- , CD19 -/- and J H -/- ) were used to generate a functional small-bowel-specific cellular atlas using a novel high-parameter flow cytometry approach that allows for the enumeration of 59 unique cell subsets. Using this cellular atlas, we generated a direct and quantifiable estimate of immune dysregulation. This estimate was then used to identify specific immune factors most predictive of the severity of inflammatory disease of the small bowel (small bowel enteropathy). Results Results from our experiments indicate that the severity of primary antibody deficiency positively correlates with the degree of immune dysregulation that can be expected to develop in an individual. In the SI of mice, immune dysregulation is primarily explained by defective homeostatic responses in T cell and invariant natural killer-like T (iNKT) cell subsets. These defects are strongly correlated with abnormalities in the balance between protein (MHCII-mediated) versus lipid (CD1d-mediated) antigen presentation by intestinal epithelial cells (IECs) and intestinal stem cells (ISCs), respectively. Conclusions Multivariate statistical approaches can be used to obtain quantifiable estimates of immune dysregulation based on high-parameter flow cytometry readouts of immune function. Using one such estimate, we reveal a previously unrecognized tradeoff between iNKT cell activation and type 1 immunity that underlies disease in the small bowel. The balance between protein/lipid antigen presentation by ISCs may play a crucial role in regulating this balance and thereby suppressing inflammatory disease in the small bowel.
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4
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Lv M, Zhang Z, Cui Y. Unconventional T cells in brain homeostasis, injury and neurodegeneration. Front Immunol 2023; 14:1273459. [PMID: 37854609 PMCID: PMC10579804 DOI: 10.3389/fimmu.2023.1273459] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 09/20/2023] [Indexed: 10/20/2023] Open
Abstract
The interaction between peripheral immune cells and the brain is an important component of the neuroimmune axis. Unconventional T cells, which include natural killer T (NKT) cells, mucosal-associated invariant T (MAIT) cells, γδ T cells, and other poorly defined subsets, are a special group of T lymphocytes that recognize a wide range of nonpolymorphic ligands and are the connection between adaptive and innate immunity. Recently, an increasing number of complex functions of these unconventional T cells in brain homeostasis and various brain disorders have been revealed. In this review, we describe the classification and effector function of unconventional T cells, review the evidence for the involvement of unconventional T cells in the regulation of brain homeostasis, summarize the roles and mechanisms of unconventional T cells in the regulation of brain injury and neurodegeneration, and discuss immunotherapeutic potential as well as future research goals. Insight of these processes can shed light on the regulation of T cell immunity on brain homeostasis and diseases and provide new clues for therapeutic approaches targeting brain injury and neurodegeneration.
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Affiliation(s)
- Mengfei Lv
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Zhaolong Zhang
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yu Cui
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, China
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5
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Chen Y, Zhu J, Chen L, Shen Y, Zhang J, Wang Q. SFRP4 +IGFBP5 hi NKT cells induced neural-like cell differentiation to contribute to adenomyosis pain. Front Immunol 2022; 13:945504. [PMID: 36532077 PMCID: PMC9750790 DOI: 10.3389/fimmu.2022.945504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 11/07/2022] [Indexed: 12/05/2022] Open
Abstract
Background Adenomyosis is an estrogen-dependent gynecological disease. The pathogenesis of chronic pain, the main clinical symptom of adenomyosis, remains undefined. As a combination lymphocyte with both T-cell and natural killer (NK)-cell properties, NK T (NKT) cells play a role in immune defense against numerous diseases and modulate cell differentiation. Method This study analyzed the tissue-cell samples from adenomyosis with or without pain by single-cell sequencing. Result We found a specific population of secreted frizzled-related protein 4 (SFRP4)+NKT cells and a large amount of undifferentiated multipotent stem cells in the adenomyosis pain group. We discovered that a high expression of IGFBP5 in SFRP4+NKT cells could promote the differentiation of multipotent stem cells into neural-like cells via the single-cell trajectory. Through verification by the sample, we found that the degree of the expression of the neuronal marker NEFM was correlated with the duration of pain in adenomyosis patients. The expression of IGFBP5 was positively correlated with the pain scores of adenomyosis patients. Conclusion Collectively, these findings suggest that SFRP4+IGFBP5hi NKT cells were capable of converting part of the stem cells into neurogenic cells and inducing adenomyosis pain.
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Affiliation(s)
| | | | | | | | - Jing Zhang
- *Correspondence: Jing Zhang, ; Qiming Wang,
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Liu Z, Zhang L, Liang Y, Lu L. Pathology and molecular mechanisms of Schistosoma japonicum-associated liver fibrosis. Front Cell Infect Microbiol 2022; 12:1035765. [PMID: 36389166 PMCID: PMC9650140 DOI: 10.3389/fcimb.2022.1035765] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/13/2022] [Indexed: 11/23/2022] Open
Abstract
Schistosomiasis has been widely disseminated around the world, and poses a significant threat to human health. Schistosoma eggs and soluble egg antigen (SEA) mediated inflammatory responses promote the formation of egg granulomas and liver fibrosis. With continuous liver injuries and inflammatory stimulation, liver fibrosis can develop into liver cirrhosis and liver cancer. Therefore, anti-fibrotic therapy is crucial to increase the survival rate of patients. However, current research on antifibrotic treatments for schistosomiasis requires further exploration. In the complicated microenvironment of schistosome infections, it is important to understand the mechanism and pathology of schistosomiasis-associated liver fibrosis(SSLF). In this review, we discuss the role of SEA in inhibiting liver fibrosis, describe its mechanism, and comprehensively explore the role of host-derived and schistosome-derived microRNAs (miRNAs) in SSLF. Inflammasomes and cytokines are significant factors in promoting SSLF, and we discuss the mechanisms of some critical inflammatory signals and pro-fibrotic cytokines. Natural killer(NK) cells and Natural killer T(NKT) cells can inhibit SSLF but are rarely described, therefore, we highlight their significance. This summarizes and provides insights into the mechanisms of key molecules involved in SSLF development.
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Affiliation(s)
- Zhilong Liu
- Laboratory of Genetic Regulators in the Immune System, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
- Henan Key Laboratory of Immunology and Targeted Therapy, Xinxiang Medical University, Xinxiang, China
| | - Lichen Zhang
- Laboratory of Genetic Regulators in the Immune System, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
- Henan Key Laboratory of Immunology and Targeted Therapy, Xinxiang Medical University, Xinxiang, China
| | - Yinming Liang
- Laboratory of Genetic Regulators in the Immune System, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
- Henan Key Laboratory of Immunology and Targeted Therapy, Xinxiang Medical University, Xinxiang, China
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang, China
- *Correspondence: Yinming Liang, ; Liaoxun Lu,
| | - Liaoxun Lu
- Laboratory of Genetic Regulators in the Immune System, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
- Henan Key Laboratory of Immunology and Targeted Therapy, Xinxiang Medical University, Xinxiang, China
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang, China
- *Correspondence: Yinming Liang, ; Liaoxun Lu,
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Ruiz-Cortes K, Villageliu DN, Samuelson DR. Innate lymphocytes: Role in alcohol-induced immune dysfunction. Front Immunol 2022; 13:934617. [PMID: 36105802 PMCID: PMC9464604 DOI: 10.3389/fimmu.2022.934617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Alcohol use is known to alter the function of both innate and adaptive immune cells, such as neutrophils, macrophages, B cells, and T cells. Immune dysfunction has been associated with alcohol-induced end-organ damage. The role of innate lymphocytes in alcohol-associated pathogenesis has become a focus of research, as liver-resident natural killer (NK) cells were found to play an important role in alcohol-associated liver damage pathogenesis. Innate lymphocytes play a critical role in immunity and homeostasis; they are necessary for an optimal host response against insults including infections and cancer. However, the role of innate lymphocytes, including NK cells, natural killer T (NKT) cells, mucosal associated invariant T (MAIT) cells, gamma delta T cells, and innate lymphoid cells (ILCs) type 1–3, remains ill-defined in the context of alcohol-induced end-organ damage. Innate-like B lymphocytes including marginal zone B cells and B-1 cells have also been identified; however, this review will address the effects of alcohol misuse on innate T lymphocytes, as well as the consequences of innate T-lymphocyte dysfunction on alcohol-induced tissue damage.
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Giotta Lucifero A, Luzzi S. Emerging immune-based technologies for high-grade gliomas. Expert Rev Anticancer Ther 2022; 22:957-980. [PMID: 35924820 DOI: 10.1080/14737140.2022.2110072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The selection of a tailored and successful strategy for high-grade gliomas (HGGs) treatment is still a concern. The abundance of aberrant mutations within the heterogenic genetic landscape of glioblastoma strongly influences cell expansion, proliferation, and therapeutic resistance. Identification of immune evasion pathways opens the way to novel immune-based strategies. This review intends to explore the emerging immunotherapies for HGGs. The immunosuppressive mechanisms related to the tumor microenvironment and future perspectives to overcome glioma immunity barriers are also debated. AREAS COVERED An extensive literature review was performed on the PubMed/Medline and ClinicalTrials.gov databases. Only highly relevant articles in English and published in the last 20 years were selected. Data about immunotherapies coming from preclinical and clinical trials were summarized. EXPERT OPINION The overall level of evidence about the efficacy and safety of immunotherapies for HGGs is noteworthy. Monoclonal antibodies have been approved as second-line treatment, while peptide vaccines, viral gene strategies, and adoptive technologies proved to boost a vivid antitumor immunization. Malignant brain tumor-treating fields are ever-changing in the upcoming years. Constant refinements and development of new routes of drug administration will permit to design of novel immune-based treatment algorithms thus improving the overall survival.
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Affiliation(s)
- Alice Giotta Lucifero
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Sabino Luzzi
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.,Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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Yang Zhou J, Werner JM, Glehr G, Geissler EK, Hutchinson JA, Kronenberg K. Identification and Isolation of Type II NKT Cell Subsets in Human Blood and Liver. Front Immunol 2022; 13:898473. [PMID: 35720369 PMCID: PMC9202826 DOI: 10.3389/fimmu.2022.898473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Background Steatotic livers are more prone to rejection, but are often transplanted owing to the shortage of available organs. Type II NKT (T2NKT) cells are liver-resident lymphocytes that react to lipids presented by CD1d. The role of T2NKT cells in rejection of fatty liver transplants is unclear, partly because of a lack of T2NKT cell markers and their very low frequency in blood. Here, we quantify human T2NKT cells in blood and liver tissue by flow cytometry and provide a strategy for their enrichment and expansion. Methods Human T2NKT cells were identified as CD3+ CD56+ CD161+ TCR-γᵹ- TCRVα7.2- and TCRVα24- cells. T2NKT cells were enriched from blood by sequential positive selection using CD56 and CD3 microbeads. These were subsequently FACS-sorted to purity then expanded in vitro for 3 weeks using anti-CD3/CD28 beads and TGF-β1. Results The frequency of human T2NKT cells in blood was very low (0.8 ± 0.4% of CD3+ T cells) but they were a more abundant population in liver (6.3 ± 0.9%). Enriched T2NKT cells expressed the transcription factor PLZF. A novel subset of FoxP3+ T2NKT cells was discovered in blood and liver tissue. T2NKT cells were expanded in culture by 15- to 28-fold over 3 weeks, during which time they maintained expression of all identifying markers, including PLZF and FoxP3. Conclusions Our work defines new strategies for identifying and isolating T2NKT cells from human blood and liver tissue. We showed that this rare population can be expanded in vitro in order to obtain experimentally amenable cell numbers. Further, we identified a novel T2NKT cell subset that stably expresses FoxP3, which might play a role in regulating innate-like lymphocyte responses in steatotic liver transplants.
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Affiliation(s)
- Jordi Yang Zhou
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany.,Leibniz Institute for Immunotherapy, Regensburg, Germany
| | - Jens M Werner
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Gunther Glehr
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Edward K Geissler
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany.,Leibniz Institute for Immunotherapy, Regensburg, Germany.,Fraunhofer-Institute for Toxicology and Experimental Medicine Institute for Toxicology and Experimental Medicine-Regensburg (ITEM-R), Regensburg, Germany.,Regensburg International Graduate School of Life Sciences, University of Regensburg, Regensburg, Germany
| | - James A Hutchinson
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany
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Adar T, Ya'acov AB, Shabat Y, Mizrahi M, Zolotarov L, Lichtenstein Y, Ilan Y. Steroid-mediated liver steatosis is CD1d-dependent, while steroid-induced liver necrosis, inflammation, and metabolic changes are CD1d-independent. BMC Gastroenterol 2022; 22:169. [PMID: 35392825 PMCID: PMC8991564 DOI: 10.1186/s12876-022-02242-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/24/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Glucocorticoids contribute to the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Natural killer T cells play a role in the pathogenesis of NAFLD and response to steroids. The present study aimed to determine the role of CD1d in steroid-mediated metabolic derangement and the steroid-protective effect of glycosphingolipids. Methods Ten groups of mice were studied. Steroids were orally administered to C57BL/6 mice to assess the therapeutic effect of β-glucosylceramide (GC) on the development of steroid-mediated liver damage and metabolic derangements. The role of CD1d in the pathogenesis of steroid-induced liver damage and in mediating the hepatoprotective effect of GC was studied in CD1d−/− mice. Results A model of oral administration of steroids was established, resulting in insulin resistance, hyperinsulinemia, hypertriglyceridemia, liver steatosis, and hepatocellular injury. Steroid administration to CD1d−/− mice was associated with hyperglycemia and hypertriglyceridemia. However, CD1d−/− mice did not manifest marked steroid-induced steatosis. GC treatment alleviated steroid-associated metabolic derangements and liver injury independent of CD1d expression. Conclusion A steroid-mediated model of NAFLD and metabolic derangements was established in which steroid-mediated steatosis was CD1d-dependent while steroid-induced liver necrosis, inflammation, and metabolic changes were CD1d-independent, which may support a dichotomy between steatosis and steatohepatitis in NAFLD. Supplementary Information The online version contains supplementary material available at 10.1186/s12876-022-02242-9.
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Affiliation(s)
- Tomer Adar
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel.,Digestive Disease Institute, Shaare-Zedek Medical Center, Jerusalem, Israel
| | - Ami Ben Ya'acov
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel.,Digestive Disease Institute, Shaare-Zedek Medical Center, Jerusalem, Israel
| | - Yehudit Shabat
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel
| | - Meir Mizrahi
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel
| | - Lida Zolotarov
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel
| | - Yoav Lichtenstein
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel
| | - Yaron Ilan
- Faculty of Medicine, Department of Medicine, Hadassah Medical Center, Hebrew University, POB 1200, 91120, Jerusalem, Israel.
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11
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Hatton SL, Pandey MK. Fat and Protein Combat Triggers Immunological Weapons of Innate and Adaptive Immune Systems to Launch Neuroinflammation in Parkinson's Disease. Int J Mol Sci 2022; 23:1089. [PMID: 35163013 PMCID: PMC8835271 DOI: 10.3390/ijms23031089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 01/27/2023] Open
Abstract
Parkinson's disease (PD) is the second-most common neurodegenerative disease in the world, affecting up to 10 million people. This disease mainly happens due to the loss of dopaminergic neurons accountable for memory and motor function. Partial glucocerebrosidase enzyme deficiency and the resultant excess accumulation of glycosphingolipids and alpha-synuclein (α-syn) aggregation have been linked to predominant risk factors that lead to neurodegeneration and memory and motor defects in PD, with known and unknown causes. An increasing body of evidence uncovers the role of several other lipids and their association with α-syn aggregation, which activates the innate and adaptive immune system and sparks brain inflammation in PD. Here, we review the emerging role of a number of lipids, i.e., triglyceride (TG), diglycerides (DG), glycerophosphoethanolamines (GPE), polyunsaturated fatty acids (PUFA), sphingolipids, gangliosides, glycerophospholipids (GPL), and cholesterols, and their connection with α-syn aggregation as well as the induction of innate and adaptive immune reactions that trigger neuroinflammation in PD.
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Affiliation(s)
- Shelby Loraine Hatton
- Cincinnati Children’s Hospital Medical Center, Division of Human Genetics, 3333 Burnet Avenue, Cincinnati, OH 45229, USA;
| | - Manoj Kumar Pandey
- Cincinnati Children’s Hospital Medical Center, Division of Human Genetics, 3333 Burnet Avenue, Cincinnati, OH 45229, USA;
- Department of Pediatrics, Division of Human Genetics, College of Medicine, University of Cincinnati, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
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Xu C, Li H, Tang CK. Sterol Carrier Protein 2: A promising target in the pathogenesis of atherosclerosis. Genes Dis 2022; 10:457-467. [DOI: 10.1016/j.gendis.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/21/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022] Open
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Type II NKT Cell Agonist, Sulfatide, Is an Effective Adjuvant for Oral Heat-Killed Cholera Vaccines. Vaccines (Basel) 2021; 9:vaccines9060619. [PMID: 34201310 PMCID: PMC8230052 DOI: 10.3390/vaccines9060619] [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: 05/01/2021] [Revised: 05/27/2021] [Accepted: 06/01/2021] [Indexed: 12/27/2022] Open
Abstract
Oral vaccination has the potential to offer a safer and more efficacious approach for protection against enteric pathogens than injection-based approaches, especially in developing countries. One key advantage is the potential to induce intestinal immune responses in addition to systemic immunity. In general, antigen delivery via the oral route triggers weak immune responses or immunological tolerance. The effectiveness of oral vaccination can be improved by co-administering adjuvants. However, a major challenge is the absence of potent and safe oral adjuvants for clinical application. Here, the Type II NKT cell activator sulfatide is shown for the first time to be an effective oral adjuvant for Vibrio cholerae vaccine antigens in a mouse model. Specifically, administration of sulfatide with the oral cholera vaccine Dukoral® resulted in enhancement of intestinal antigen-specific IgA in addition to Th1 and Th17 immune responses. In summary, sulfatide is a promising adjuvant for inclusion in an oral cholera vaccine and our data further support the potential of adjuvants targeting NKT cells in new vaccine strategies.
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14
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Salminen A. Activation of immunosuppressive network in the aging process. Ageing Res Rev 2020; 57:100998. [PMID: 31838128 DOI: 10.1016/j.arr.2019.100998] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 12/19/2022]
Abstract
Chronic low-grade inflammation has a key role in the aging process, a state called inflammaging. It is known that the chronic inflammatory condition generates counteracting immunosuppressive state in many diseases. Inflammaging is also associated with an immune deficiency; generally termed as immunosenescence, although it is not known whether it represents the senescence of immune cells or the active remodeling of immune system. Evidence has accumulated since the 1970's indicating that immunosenescence might be caused by an increased activity of immunosuppressive cells rather than cellular senescence. Immune cells display remarkable plasticity; many of these cells can express both proinflammatory and immunosuppressive phenotypes in a context-dependent manner. The immunosuppressive network involves the regulatory subtypes of T (Treg) and B (Breg) cells as well as regulatory phenotypes of macrophages (Mreg), dendritic (DCreg), natural killer (NKreg), and type II natural killer T (NKT) cells. The immunosuppressive network also includes monocytic (M-MDSC) and polymorphonuclear (PMN-MDSC) myeloid-derived suppressor cells which are immature myeloid cells induced by inflammatory mediators. This co-operative network is stimulated in chronic inflammatory conditions preventing excessive inflammatory responses but at the same time they exert harmful effects on the immune system and tissue homeostasis. Recent studies have revealed that the aging process is associated with the activation of immunosuppressive network, especially the functions of MDSCs, Tregs, and Mregs are increased. I will briefly review the properties of the regulatory phenotypes of immune cells and examine in detail the evidences for an activation of immunosuppressive network with aging.
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15
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Tiwary S, Berzofsky JA, Terabe M. Altered Lipid Tumor Environment and Its Potential Effects on NKT Cell Function in Tumor Immunity. Front Immunol 2019; 10:2187. [PMID: 31620124 PMCID: PMC6759687 DOI: 10.3389/fimmu.2019.02187] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 08/30/2019] [Indexed: 01/26/2023] Open
Abstract
Natural killer T (NKT) cells are CD1d restricted T cells that mostly recognize lipid antigens. These cells share characteristics with both adaptive and innate immune cells and have multiple immunoregulatory roles. In a manner similar to innate immune cells, they respond quickly to stimuli and secrete large amounts of cytokines, amplifying and modulating the immune response. As T cells, they express T cell receptors (TCRs) and respond in an antigen-specific manner like conventional T cells. There are at least two subtypes of NKT cells, type I and type II, that differ in the nature of their TCR, either semi-invariant (type I) or diverse (type II). The two sub-types generally have opposing functions in tumor immunity, with type I promoting and type II suppressing tumor immunity, and they cross-regulate each other, forming an immunoregulatory axis. The tumor has multiple mechanisms by which it can evade immune-surveillance. One such mechanism involves alteration in tumor lipid repertoire and accumulation of lipids and fatty acids that favor tumor growth and evade anti-tumor immunity. Since NKT cells mostly recognize lipid antigens, an altered tumor lipid metabolic profile will also alter the repertoire of lipid antigens that can potentially affect their immune-modulatory function. In this review, we will explore the effects of alterations in the lipid metabolites on tumor growth, antigen cross-presentation, and overall effect on anti-tumor immunity, especially in the context of NKT cells.
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Affiliation(s)
- Shweta Tiwary
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Jay A. Berzofsky
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Masaki Terabe
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
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16
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Abstract
Natural killer T (NKT) cells are a unique subset of T lymphocytes with the expression of T cell receptor (TCR) and NK cell lineage receptors. These cells can rapidly release large quantities of cytokines and function as a bridge between innate and adaptive immunity. To date, multiple reports have investigated the role of NKT cells under various pathological conditions, such as cancer, autoimmune disease, and infection. Knowledge about NKT cells in neurological diseases is increasing, albeit limited. Here, we review evidence for the involvement of NKT cells in neurological diseases, and discuss immunotherapeutic potential and future study goals. As the development and function of NKT cells become increasingly well understood, the next few years should yield many new insights into NKT cell function, and mechanistic regulation in neurological disorders.
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Affiliation(s)
- Yu Cui
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, China
| | - Qi Wan
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, China
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17
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Sebode M, Wigger J, Filpe P, Fischer L, Weidemann S, Krech T, Weiler-Normann C, Peiseler M, Hartl J, Tolosa E, Herkel J, Schramm C, Lohse AW, Arrenberg P. Inflammatory Phenotype of Intrahepatic Sulfatide-Reactive Type II NKT Cells in Humans With Autoimmune Hepatitis. Front Immunol 2019; 10:1065. [PMID: 31191516 PMCID: PMC6546815 DOI: 10.3389/fimmu.2019.01065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/25/2019] [Indexed: 01/06/2023] Open
Abstract
Background: Natural Killer T (NKT) cells are CD1d-restricted innate-like T cells that can rapidly release stored cytokines upon recognition of lipid antigens. In mice, type I NKT cells seem to promote liver inflammation, whereas type II NKT cells seem to restrict hepatitis. Here, we aimed at characterizing the role of human type I and type II NKT in patients with autoimmune hepatitis (AIH). Methods: NKT cells were analyzed by flow cytometry in peripheral blood and liver of AIH patients and control groups. α-galactosylceramide-loaded or sulfatide-loaded tetramers were used to detect type I or II NKT cells, respectively. Hepatic CD1d was stained by in situ-hybridization of liver biopsies. Results and Conclusions: Type II NKT cells were more prevalent in human peripheral blood and liver than type I NKT cells. In AIH patients, the frequency of sulfatide-reactive type II NKT cells was significantly increased in peripheral blood (0.11% of peripheral blood leukocytes) and liver (3.78% of intrahepatic leukocytes) compared to healthy individuals (0.05% and 1.82%) and patients with drug-induced liver injury (0.06% and 2.03%; p < 0.05). Intrahepatic type II NKT cells of AIH patients had a different cytokine profile than healthy subjects with an increased frequency of TNFα (77.8% vs. 59.1%, p < 0.05), decreased IFNγ (32.7% vs. 63.0%, p < 0.05) and a complete lack of IL-4 expressing cells (0% vs. 2.1%, p < 0.05). T cells in portal tracts expressed significantly more CD1d-RNA in AIH livers compared to controls. This study supports that in contrast to their assumed protective role in mice, human intrahepatic, sulfatide-reactive type II NKT cells displayed a proinflammatory cytokine profile in patients with AIH. Infiltrating T cells in portal areas of AIH patients overexpressed CD1d and could thereby activate type II NKT cells.
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Affiliation(s)
- Marcial Sebode
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Jennifer Wigger
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Pamela Filpe
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lutz Fischer
- Department of Hepatobiliary Surgery and Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sören Weidemann
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till Krech
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christina Weiler-Normann
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany.,Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Moritz Peiseler
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Johannes Hartl
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Eva Tolosa
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Herkel
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Schramm
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany.,Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ansgar W Lohse
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Philomena Arrenberg
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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18
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Ilan Y. β-Glycosphingolipids as Mediators of Both Inflammation and Immune Tolerance: A Manifestation of Randomness in Biological Systems. Front Immunol 2019; 10:1143. [PMID: 31178868 PMCID: PMC6538797 DOI: 10.3389/fimmu.2019.01143] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 05/07/2019] [Indexed: 12/27/2022] Open
Abstract
Plasticity in biological systems is attributed to the combination of multiple parameters which determine function. These include genotypic, phenotypic, and environmental factors. While biological processes can be viewed as ordered and sequential, biological randomness was suggested to underline part of them. The present review looks into the concept of randomness in biological systems by exploring the glycosphingolipids-NKT cells example. NKT cells are a unique subset of regulatory lymphocytes which play a role in both inflammation and tolerance. Glycosphingolipids promote an immune balance by changing different arms of the immune system in opposing environments. Traditional immunology looks at skewing the immune system into different directions by different types of activation of the same cell stimulation of different cells subsets, use of different ligands, or different the effect of different immune environments. While these may explain some of the effects, the lack of consistency and opposing results under similar settings may involve randomness which may also be part of real life effects of immunomodulatory agents. It means that several of the biological processes, cannot be explained by simple linear models, and may involve more complex concepts. The application for these concepts for improving therapies to patients with Gaucher disease are discussed. SUMMARY The use of different ligands that target a variety of cell subsets in different immune environments may underlie differences in the functionality of NKT cells and their variability in response to NKT-based therapies. The novel concept of randomness in biology means that several biological processes cannot be solely explained by simple linear models and may instead involve much more complicated schemes of random disorder. These may have implications on future design of therapeutic regimens for improving the response to current treatments.
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Affiliation(s)
- Yaron Ilan
- Gastroenterology and Liver Units, Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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19
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Zhao A, Liu K, Qi Y. Natural killer T cells from peripheral blood of patients with pregnancy-induced hypertension inhibit the proliferation and migration of vascular endothelial cells by secreting interleukin-17. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1577698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Aixin Zhao
- Obstetrics Department, Jinan Second Maternal and Child Health Hospital, Jinan, P.R. China
| | - Kun Liu
- Obstetrics Department, Jinan Second Maternal and Child Health Hospital, Jinan, P.R. China
| | - Yunfang Qi
- Obstetrics Department, Jinan Second Maternal and Child Health Hospital, Jinan, P.R. China
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20
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Lv X, Gao Y, Dong T, Yang L. Role of Natural Killer T (NKT) Cells in Type II Diabetes-Induced Vascular Injuries. Med Sci Monit 2018; 24:8322-8332. [PMID: 30451213 PMCID: PMC6256848 DOI: 10.12659/msm.912446] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background This study investigated the distribution and features of natural killer T (NKT) cells in the peripheral blood of diabetic patients, and their regulatory roles on vascular endothelial cells. Material/Methods Peripheral lymphocytes were isolated from diabetic patients. NKT cell distribution, proportion, and surface and intracellular markers were detected with flow cytometry. Peripheral blood-derived NKT cells were isolated and co-cultured with human umbilical vein endothelial cells (HUVECs). Proliferation and migration of HUVECs were assessed with the CCK-8 assay and the Transwell chamber assay. Results The ratios of CD3-CD56+ NK and CD3+CD56+ NKT cells in the peripheral blood of patients with type II diabetes were significantly elevated. The expression levels of NKp30, NKG2D, and NKp44 on the surface were increased in the CD3+CD56+ NKT cells, while the expression levels of NKG2A and 158b were significantly downregulated. The expression level of granzymes in the peripheral blood-derived NKT cells were not changed in patients with type II diabetes, but the expression levels of IFNγ and IL-4 were significantly increased. However, after co-culture with NKT cells derived from the peripheral blood of diabetic patients, the proliferation and migration of HUVECs were significantly inhibited, and was restored by treatment with IL-4 antibody. In addition, the IL-4 stimulus inhibited the proliferation and migration of HUVECs. Conclusions Peripheral blood NKT cells are increased and activated in diabetes. NKT cells inhibit the proliferation and migration of HUVECs by secreting IL-4, thereby inducing vascular injuries.
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Affiliation(s)
- Xiaohong Lv
- The First Department of Endocrinology, Tai'an Central Hospital, Tai'an, Shandong, China (mainland)
| | - Yun Gao
- The First Department of Endocrinology, Tai'an Central Hospital, Tai'an, Shandong, China (mainland)
| | - Tantan Dong
- Department of Internal Medicine, Taishan People's Hospital, Tai'an, Shandong, China (mainland)
| | - Libo Yang
- The First Department of Endocrinology, Tai'an Central Hospital, Tai'an, Shandong, China (mainland)
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21
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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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22
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Nishioka Y, Sonoda T, Shida H, Kusunoki Y, Hattanda F, Tanimura S, Uozumi R, Yamada M, Nishibata Y, Masuda S, Nakazawa D, Tomaru U, Atsumi T, Ishizu A. Detection of Autoreactive Type II NKT Cells: A Pilot Study of Comparison Between Healthy Individuals and Patients with Vasculitis. Cytometry A 2018; 93:1157-1164. [PMID: 30253046 DOI: 10.1002/cyto.a.23618] [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: 12/21/2017] [Revised: 06/23/2018] [Accepted: 08/27/2018] [Indexed: 11/09/2022]
Abstract
NKT cells are defined as T cells that recognize hydrophobic antigens presented by class I MHC-like molecules, including CD1d. Among CD1d-restricted NKT cells, type I and type II subsets have been noted. CD1d-restricted type I NKT cells are regarded as pro-inflammatory cells in general. On the contrary, accumulated evidence has demonstrated an anti-inflammatory property of CD1d-restricted type II NKT cells. In our earlier study using a rat model with vasculitis, we demonstrated the pro-inflammatory function of CD1d-restricted type II NKT cells and identified that one such cell recognized P518-532 of rat sterol carrier protein 2 (rSCP2518-532 ), which appeared on vascular endothelial cells presented by CD1d. Based on this evidence, we attempted to detect human CD1d-restricted type II NKT cells in peripheral blood using hSCP2518-532 , the human counterpart of rSCP2518-532, together with a CD1d tetramer in flow cytometry. First, we determined the binding of hSCP2518-532 to CD1d. Next, we detected CD3-positive hSCP2518-532 -loaded CD1d (hSCP2518-532 /CD1d) tetramer-binding cells in peripheral blood of healthy donors. The abundance of TGF-β-producing cells rather than TNF-α-producing cells in CD3-positive hSCP2518-532 /CD1d tetramer-binding cells suggests the anti-inflammatory property of SCP2-loaded CD1d (SCP2/CD1d) tetramer-binding type II NKT cells in healthy individuals. Furthermore, we compared cytokine profile between healthy individuals and patients with vasculitis in a pilot study. Interestingly, the percentage of TGF-β-producing cells in SCP2/CD1d tetramer-binding type II NKT cells in vasculitic patients was significantly lower than that in healthy controls despite the greater number of these cells. Although further studies to clarify the mechanism and significance of this phenomenon are needed, SCP2/CD1d tetramer-binding type II NKT cells in peripheral blood should be examined in more detail to understand the pathophysiology of vasculitides in humans. © 2018 International Society for Advancement of Cytometry.
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Affiliation(s)
- Yusuke Nishioka
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Takaomi Sonoda
- Undergraduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Haruki Shida
- Division of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshihiro Kusunoki
- Division of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Fumihiko Hattanda
- Division of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shun Tanimura
- Division of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ryo Uozumi
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Mai Yamada
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Yuka Nishibata
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Sakiko Masuda
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Daigo Nakazawa
- Division of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Utano Tomaru
- Department of Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tatsuya Atsumi
- Division of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Akihiro Ishizu
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
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23
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Marrero I, Maricic I, Feldstein AE, Loomba R, Schnabl B, Rivera-Nieves J, Eckmann L, Kumar V. Complex Network of NKT Cell Subsets Controls Immune Homeostasis in Liver and Gut. Front Immunol 2018; 9:2082. [PMID: 30254647 PMCID: PMC6141878 DOI: 10.3389/fimmu.2018.02082] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/22/2018] [Indexed: 12/23/2022] Open
Abstract
The liver-gut immune axis is enriched in several innate immune cells, including innate-like unconventional and adaptive T cells that are thought to be involved in the maintenance of tolerance to gut-derived antigens and, at the same time, enable effective immunity against microbes. Two subsets of lipid-reactive CD1d-restricted natural killer T (NKT) cells, invariant NKT (iNKT) and type II NKT cells present in both mice and humans. NKT cells play an important role in regulation of inflammation in the liver and gut due to their innate-like properties of rapid secretion of a myriad of pro-inflammatory and anti-inflammatory cytokines and their ability to influence other innate cells as well as adaptive T and B cells. Notably, a bi-directional interactive network between NKT cells and gut commensal microbiota plays a crucial role in this process. Here, we briefly review recent studies related to the cross-regulation of both NKT cell subsets and how their interactions with other immune cells and parenchymal cells, including hepatocytes and enterocytes, control inflammatory diseases in the liver, such as alcoholic and non-alcoholic steatohepatitis, as well as inflammation in the gut. Overwhelming experimental data suggest that while iNKT cells are pathogenic, type II NKT cells are protective in the liver. Since CD1d-dependent pathways are highly conserved from mice to humans, a detailed cellular and molecular understanding of these immune regulatory pathways will have major implications for the development of novel therapeutics against inflammatory diseases of liver and gut.
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Affiliation(s)
- Idania Marrero
- Laboratory of Immune Regulation, University of California, San Diego, La Jolla, CA, United States.,Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Igor Maricic
- Laboratory of Immune Regulation, University of California, San Diego, La Jolla, CA, United States.,Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Ariel E Feldstein
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States
| | - Rohit Loomba
- Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Bernd Schnabl
- Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Jesus Rivera-Nieves
- Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Lars Eckmann
- Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Vipin Kumar
- Laboratory of Immune Regulation, University of California, San Diego, La Jolla, CA, United States.,Division of Gastroenterology and Hepatology, Department of Medicine, University of California, San Diego, La Jolla, CA, United States
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24
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Singh AK, Tripathi P, Cardell SL. Type II NKT Cells: An Elusive Population With Immunoregulatory Properties. Front Immunol 2018; 9:1969. [PMID: 30210505 PMCID: PMC6120993 DOI: 10.3389/fimmu.2018.01969] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/10/2018] [Indexed: 12/20/2022] Open
Abstract
Natural killer T (NKT) cells are unique unconventional T cells that are reactive to lipid antigens presented on the non-polymorphic major histocompatibility class (MHC) I-like molecule CD1d. They have characteristics of both innate and adaptive immune cells, and have potent immunoregulatory roles in tumor immunity, autoimmunity, and infectious diseases. Based on their T cell receptor (TCR) expression, NKT cells are divided into two subsets, type I NKT cells with an invariant TCRα-chain (Vα24 in humans, Vα14 in mice) and type II NKT cells with diverse TCRs. While type I NKT cells are well-studied, knowledge about type II NKT cells is still limited, and it is to date only possible to identify subsets of this population. However, recent advances have shown that both type I and type II NKT cells play important roles in many inflammatory situations, and can sometimes regulate the functions of each other. Type II NKT cells can be both protective and pathogenic. Here, we review current knowledge on type II NKT cells and their functions in different disease settings and how these cells can influence immunological outcomes.
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Affiliation(s)
- Avadhesh Kumar Singh
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Prabhanshu Tripathi
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Susanna L Cardell
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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