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Zhang X, Yu C, Liu JQ, Bai XF. Dendritic cell expression of CD24 contributes to optimal priming of T lymphocytes in lymph nodes. Front Immunol 2023; 14:1116749. [PMID: 36969215 PMCID: PMC10033833 DOI: 10.3389/fimmu.2023.1116749] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
CD24 is a GPI anchored cell surface glycoprotein whose function as a co-stimulatory molecule has been implicated. However, the function of CD24 on antigen presenting cells during T cell responses is not well understood. Here we show that in the CD24-deficient host, adoptively transferred CD4+ T cells undergo inefficient expansion and have accelerated cell death in lymph nodes, which results in insufficient priming of T cells. Insufficient expansion of T cells in the CD24-deficient host was not due to host anti-CD24 response by NK, T and B lymphocytes. Transgenic expression of CD24 on DC in CD24-/- mice restored T cell accumulation and survival in draining lymph nodes. Consistent with these findings, MHC II tetramer staining also revealed that an antigen-specific polyclonal T cell response was reduced in lymph nodes of CD24-/- mice. Taken together, we have revealed a novel role of CD24 on DC in optimal T cell priming in lymph nodes. These data suggest that CD24 blockade should lower unwanted T cell responses such as those in autoimmune diseases.
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Shi Y, Zhu J, Liu JQ, Talebian F, Li M, Bai XF. CD24 is expressed on FoxP3 + regulatory T cells and regulates their function. Am J Transl Res 2022; 14:2291-2300. [PMID: 35559385 PMCID: PMC9091082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/26/2022] [Indexed: 06/15/2023]
Abstract
CD24 is a glycosyl-phosphatidylinositol (GPI) anchored cell surface glycoprotein with a variety of immunomodulatory functions such as inhibition of thymic generation of autoreactive T cells, regulation of antigen presenting cell functions, and mediation of autoimmunity. Given the autoimmune nature of FoxP3+ regulatory T cells and their importance in autoimmune diseases, we hypothesize that CD24 regulates the generation and functions of Treg cells. Through the analysis of the Treg repertoire in two strains of CD24-deficient mice, we found that CD24 does not globally affect the thymic generation of Treg cells. However, CD24 is abundantly expressed on Treg cells, and CD24 antibody treatment of Treg cells enhances their suppressive functions. Concurrently, we observed CD24-deficient Treg cells exhibit increased suppressive functions and produce more IL-10 compared to their wild type counterparts. In addition, CD24-deficient Treg cells exhibited more potent suppressive capacity in inhibiting the development of experimental autoimmune encephalomyelitis (EAE) in mice. Thus, CD24 on Treg cells regulates their suppressive functions. Our findings can partially explain the resistance of EAE development in CD24-deficient mice and CD24 polymorphism-associated susceptibility of human autoimmune diseases. Further investigations regarding mechanisms of CD24 regulation of Treg function may lead to a new approach for the immunotherapy of human autoimmune diseases.
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Affiliation(s)
- Yun Shi
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University Medical CenterColumbus, OH 43201, USA
- Department of Gastroenterology, Nanfang Hospital, Southern Medical UniversityGuangzhou 510510, Guangdong, China
| | - Jing Zhu
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University Medical CenterColumbus, OH 43201, USA
- Department of Gastroenterology, Nanfang Hospital, Southern Medical UniversityGuangzhou 510510, Guangdong, China
| | - Jin-Qing Liu
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University Medical CenterColumbus, OH 43201, USA
| | - Fatemeh Talebian
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University Medical CenterColumbus, OH 43201, USA
| | - Mingsong Li
- Department of Gastroenterology, Nanfang Hospital, Southern Medical UniversityGuangzhou 510510, Guangdong, China
- Current address: Department of Gastroenterology, Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510145, China
| | - Xue-Feng Bai
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University Medical CenterColumbus, OH 43201, USA
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Zhang CC, Voitl R, Hippchen T, Weiss KH, Sauer P, Rupp C. Evaluation of two functional CD24 polymorphisms in primary sclerosing cholangitis. Scand J Gastroenterol 2020; 55:581-587. [PMID: 32329406 DOI: 10.1080/00365521.2020.1755357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Background: Primary sclerosing cholangitis (PSC) is a progressive liver disease and characterized by chronic inflammation, sclerosis and strictures of bile ducts. Several genetic risk factors might contribute to pathogenesis. Functional single nucleotide polymorphisms (SNPs) in the CD24 gene have been associated with the development of autoimmune and autoinflammatory diseases and might contribute to the susceptibility for inflammatory bowel disease (IBD).Aim: This retrospective study aimed to evaluate the impact of two functional CD24 SNPs on clinical features and disease progression in patients with PSC.Methods: A C to T coding polymorphism (rs8734) and a TG deletion in the 3´- untranslated region (rs3838646) were genotyped. The study cohort comprises of 359 PSC patients for rs3838646 genotype and 335 PSC patients for rs8734 genotype. Clinical and laboratory parameters were collected by chart review.Results: For the rs8734 genotype, 175 patients (52.2%) were found to be homozygous wildtype ('Ala/Ala'), 127 (37.9%) patients were heterozygous ('Ala/Val') and 33 patients (9.9%) were homozygous mutant ('Val/Val'). The rs8734genotype was associated with a decreased risk for dominant strictures at first diagnosis of PSC (p = .04). For the rs3838646 genotype, 322 patients (89.7%) were found to be homozygous wildtype ('TG/TG'); 37 showed the 'TG/del' genotype (10.3%). The 'TG/del'genotype was associated with alower risk of IBD (p = .01).There was no influence of both CD24 SNPs with clinical end points or transplantation-free survival in our PSC cohort.Conclusion: Our results suggest a mild association of the rs8734 CD24 genotype with dominant strictures at first diagnosis of PSC. The rs3838646 CD24 genotype is associated with a lower rate of IBD. Both SNPs seem to modulate the clinical phenotype without major pathogenetic importance for disease progression in PSC.
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Affiliation(s)
| | - Robert Voitl
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Theresa Hippchen
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Karl-Heinz Weiss
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Peter Sauer
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Christian Rupp
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
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Barik S, Miller M, Cattin-Roy A, Ukah T, Zaghouani H. A distinct dendritic cell population arises in the thymus of IL-13Rα1-sufficient but not IL-13Rα1-deficient mice. Cell Immunol 2018; 331:130-136. [PMID: 29929727 PMCID: PMC6092245 DOI: 10.1016/j.cellimm.2018.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/01/2018] [Accepted: 06/15/2018] [Indexed: 12/14/2022]
Abstract
IL-13 receptor alpha 1 (IL-13Rα1) associates with IL-4Rα to form a functional IL-4Rα/IL-13Rα1 heteroreceptor (HR) through which both IL-4 and IL-13 signal. Recently, HR expression was associated with the development of M2 type macrophages which function as antigen presenting cells (APCs). Herein, we show that a subset of thymic resident dendritic cells (DCs) expressing high CD11b (CD11bhi) and intermediate CD11c (CD11cint) arise in HR-sufficient but not HR-deficient mice. These DCs, which originate from the bone marrow are able to take up Ag from the peritoneum, traffic through the spleen and the lymph nodes and carry it to the thymus. In addition, since the DCs are able to present Ag to T cells, express high levels of the costimulatory molecule CD24, and comprise a CD8α+ subset, it is likely that the cells contribute to T cell development and perhaps negative selection of self-reactive lymphocytes.
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Affiliation(s)
- Subhasis Barik
- Department of Molecular Microbiology & Immunology, University of Missouri, MO, USA
| | - Mindy Miller
- Department of Molecular Microbiology & Immunology, University of Missouri, MO, USA
| | - Alexis Cattin-Roy
- Department of Molecular Microbiology & Immunology, University of Missouri, MO, USA
| | - Tobechukwu Ukah
- Department of Molecular Microbiology & Immunology, University of Missouri, MO, USA
| | - Habib Zaghouani
- Department of Molecular Microbiology & Immunology, University of Missouri, MO, USA; Department of Child Heath, University of Missouri, MO, USA; Department of Neurology, University of Missouri, MO, USA.
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Zhu J, Liu JQ, Liu Z, Wu L, Shi M, Zhang J, Davis JP, Bai XF. Interleukin-27 Gene Therapy Prevents the Development of Autoimmune Encephalomyelitis but Fails to Attenuate Established Inflammation due to the Expansion of CD11b +Gr-1 + Myeloid Cells. Front Immunol 2018; 9:873. [PMID: 29740452 PMCID: PMC5928207 DOI: 10.3389/fimmu.2018.00873] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 04/09/2018] [Indexed: 11/13/2022] Open
Abstract
Interleukin-27 (IL-27) and its subunit P28 (also known as IL-30) have been shown to inhibit autoimmunity and have been suggested as potential immunotherapeutic for autoimmune diseases such as multiple sclerosis (MS). However, the potential of IL-27 and IL-30 as immunotherapeutic, and their mechanisms of action have not been fully understood. In this study, we evaluated the efficacy of adeno-associated viral vector (AAV)-delivered IL-27 (AAV-IL-27) and IL-30 (AAV-IL-30) in a murine model of MS. We found that one single administration of AAV-IL-27, but not AAV-IL-30 completely blocked the development of experimental autoimmune encephalomyelitis (EAE). AAV-IL-27 administration reduced the frequencies of Th17, Treg, and GM-CSF-producing CD4+ T cells and induced T cell expression of IFN-γ, IL-10, and PD-L1. However, experiments involving IL-10-deficient mice and PD-1 blockade revealed that AAV-IL-27-induced IL-10 and PD-L1 expression were not required for the prevention of EAE development. Surprisingly, neither AAV-IL-27 nor AAV-IL-30 treatment inhibited EAE development and Th17 responses when given at disease onset. We found that mice with established EAE had significant expansion of CD11b+Gr-1+ cells, and AAV-IL-27 treatment further expanded these cells and induced their expression of Th17-promoting cytokines such as IL-6. Adoptive transfer of AAV-IL-27-expanded CD11b+Gr-1+ cells enhanced EAE development. Thus, expansion of CD11b+Gr-1+ cells provides an explanation for the resistance to IL-27 therapy in mice with established disease.
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MESH Headings
- Animals
- CD11b Antigen/immunology
- CD11b Antigen/metabolism
- Dependovirus/genetics
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Genetic Therapy/methods
- Genetic Vectors/administration & dosage
- Genetic Vectors/genetics
- Humans
- Interleukin-10/genetics
- Interleukin-10/immunology
- Interleukin-27/administration & dosage
- Interleukin-27/genetics
- Interleukin-27/immunology
- Mice
- Mice, Inbred C57BL
- Multiple Sclerosis/immunology
- Multiple Sclerosis/therapy
- Myeloid Cells/immunology
- Receptors, Chemokine/immunology
- Receptors, Chemokine/metabolism
- Receptors, Cytokine/genetics
- Receptors, Cytokine/immunology
- Receptors, Interleukin
- Treatment Outcome
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Affiliation(s)
- Jianmin Zhu
- Pediatric Translational Medicine Institute, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-Qing Liu
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, OH, United States
| | - Zhihao Liu
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, OH, United States
| | - Lisha Wu
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, OH, United States
| | - Min Shi
- Pediatric Translational Medicine Institute, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianchao Zhang
- Department of Physiology, Ohio State University, Columbus, OH, United States
| | - Jonathan P. Davis
- Department of Physiology, Ohio State University, Columbus, OH, United States
| | - Xue-Feng Bai
- Pediatric Translational Medicine Institute, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, OH, United States
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Zheng C, Yin S, Yang Y, Yu Y, Xie X. CD24 aggravates acute liver injury in autoimmune hepatitis by promoting IFN-γ production by CD4 + T cells. Cell Mol Immunol 2017; 15:260-271. [PMID: 28065940 PMCID: PMC5843612 DOI: 10.1038/cmi.2016.57] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 09/23/2016] [Accepted: 09/23/2016] [Indexed: 12/25/2022] Open
Abstract
The T-cell-mediated immune response is implicated in many clinical hepatic injuries, such as autoimmune hepatitis and acute virus hepatitis. CD24 is widely expressed by different immune cells and plays an important role in the pathogenesis of many autoimmune diseases. However, the role of CD24 in T-cell-mediated liver injury has not been elucidated until now. Here we showed that CD24 deficiency protects mice from concanavalin A (ConA)-induced fulminant liver injury by reducing serum interferon-γ (IFN-γ) levels. CD24 expression by hepatic T cells was markedly increased following ConA challenge. Moreover, decreased IFN-γ production by hepatic CD4+ T cells in CD24-deficient mice was detected, which was correlated with downregulated phosphorylation of STAT1 in hepatic tissue. In vitro experiments also supported the conclusion that CD24 deficiency impaired IFN-γ production by CD4+ T cells following ConA, CD3/CD28 and phorbol myristate acetate/ionomycin stimulation. Our study suggests that CD24 deficiency confers hepatoprotection by decreasing CD4+ T-cell-dependent IFN-γ production in vivo, which suggests that CD24 might be a potential target molecule for reducing clinical hepatitis.
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Affiliation(s)
- Chenhong Zheng
- Department of Comprehensive Surgery, Clinical Division of South Building, Chinese PLA General Hospital, Beijing 100853, China
| | - Shulei Yin
- National Key Laboratory of Medical Immunology and Institute of Immunology, Second Military Medical University, Shanghai 200433, China
| | - Yang Yang
- National Key Laboratory of Medical Immunology and Institute of Immunology, Second Military Medical University, Shanghai 200433, China
| | - Yizhi Yu
- National Key Laboratory of Medical Immunology and Institute of Immunology, Second Military Medical University, Shanghai 200433, China
| | - Xiaohua Xie
- Department of Comprehensive Surgery, Clinical Division of South Building, Chinese PLA General Hospital, Beijing 100853, China
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Huang J, Yang Y, Liang Z, Kang M, Kuang Y, Li F. Association between the CD24 Ala57Val polymorphism and risk for multiple sclerosis and systemic lupus erythematosus: a meta-analysis. Sci Rep 2015; 5:9557. [PMID: 25830931 PMCID: PMC5381688 DOI: 10.1038/srep09557] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 03/03/2015] [Indexed: 01/03/2023] Open
Abstract
The cluster of differentiation 24 (CD24) Ala57Val polymorphism has been implicated as a risk factor for multiple sclerosis (MS) and systemic lupus erythematosus (SLE); however, genetic studies have produced controversial results. A meta-analysis was performed on this topic. We used odds ratio (OR) and 95% confidence interval (95% CI) to investigate the strength of association. Eleven studies from nine publications consisting of 2466 cases and 2650 controls were included. The results suggested that the CD24 Val/Val genotypes were associated with an increased risk of MS in all study subjects and Caucasians (OR = 2.28, 95% CI: 1.68–3.10, Pz < 0.001 and OR = 2.30, 95% CI: 1.66–3.20, Pz < 0.001, respectively). Sensitivity analysis showed that no individual study was found to be significantly biasing the pooled results. Although meta-analysis also suggested an association between the CD24 Val/Val genotypes and SLE risk in Caucasians (OR = 1.71, 95% CI: 1.31–2.24, Pz < 0.001), sensitivity analysis demonstrated that the association was not statistically significant after removing a Spanish study. In conclusion, this meta-analysis suggests that the CD24 Ala57Val polymorphism is associated with an increased risk of MS in Caucasians. However, the available evidence is not sufficient to support an association between the CD24 Ala57Val polymorphism and SLE risk.
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Affiliation(s)
- Jian Huang
- Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yaqi Yang
- Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zibin Liang
- Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Miaomiao Kang
- Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ying Kuang
- Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Feng Li
- Department of Anatomy and Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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CD24: from a Hematopoietic Differentiation Antigen to a Genetic Risk Factor for Multiple Autoimmune Diseases. Clin Rev Allergy Immunol 2015; 50:70-83. [DOI: 10.1007/s12016-015-8470-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Thaxton JE, Liu B, Zheng P, Liu Y, Li Z. Deletion of CD24 impairs development of heat shock protein gp96-driven autoimmune disease through expansion of myeloid-derived suppressor cells. THE JOURNAL OF IMMUNOLOGY 2014; 192:5679-86. [PMID: 24808359 DOI: 10.4049/jimmunol.1302755] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
CD24 binds to and suppresses inflammation triggered by danger-associated molecular patterns such as heat shock proteins (HSPs) and high-mobility group box 1. Paradoxically, CD24 has been shown to enhance autoimmune disease. In this study, we attempt to reconcile this paradox by deletion of CD24 (24KO) in a lupus-like disease model driven by forced expression of HSP gp96 at the cell surface (transgenic mice [tm]). As expected, tm24KO mice showed increased CD11c(+) dendritic cell activation coupled to a significant increase in dendritic cell-specific IL-12 production compared with tm mice. However, tm24KO mice showed less CD4 T cell activation and peripheral inflammatory cytokine production in comparison with tm mice. We characterized an enhanced immune suppressive milieu in tm24KO mice distinguished by increased TGF-β and greater regulatory T cell-suppressive capacity. We found greater absolute numbers of myeloid-derived suppressor cells (MDSCs) in tm24KO mice and showed that the Ly6C(+) MDSC subset had greater suppressive capacity from tm24KO mice. Deletion of CD24 in tm mice led to diminished lupus-like pathology as evidenced by anti-nuclear Ab deposition and glomerulonephritis. Finally, we show that expanded MDSC populations were mediated by increased free high-mobility group box 1 in tm24KO mice. Thus, the deletion of CD24 in an HSP-driven model of autoimmunity led to the unexpected development of regulatory T cell and MDSC populations that augmented immune tolerance. Further study of these populations as possible negative regulators of inflammation in the context of autoimmunity is warranted.
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Affiliation(s)
- Jessica E Thaxton
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Bei Liu
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Pan Zheng
- Center for Cancer and Immunology Research, Children's National Medical Center, Washington, DC 20010
| | - Yang Liu
- Center for Cancer and Immunology Research, Children's National Medical Center, Washington, DC 20010
| | - Zihai Li
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425; and
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