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Xu J, Zhai J, Zhao J. Pathogenic roles of follicular helper T cells in IgG4-related disease and implications for potential therapy. Front Immunol 2024; 15:1413860. [PMID: 38911857 PMCID: PMC11190345 DOI: 10.3389/fimmu.2024.1413860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/27/2024] [Indexed: 06/25/2024] Open
Abstract
IgG4-related disease (IgG4-RD) is a recently described autoimmune disorder characterized by elevated serum IgG4 levels and tissue infiltration of IgG4+ plasma cells in multiple organ systems. Recent advancements have significantly enhanced our understanding of the pathological mechanism underlying this immune-mediated disease. T cell immunity plays a crucial role in the pathogenesis of IgG4-RD, and follicular helper T cells (Tfh) are particularly important in germinal center (GC) formation, plasmablast differentiation, and IgG4 class-switching. Apart from serum IgG4 concentrations, the expansion of circulating Tfh2 cells and plasmablasts may also serve as novel biomarkers for disease diagnosis and activity monitoring in IgG4-RD. Further exploration into the pathogenic roles of Tfh in IgG4-RD could potentially lead to identifying new therapeutic targets that offer more effective alternatives for treating this condition. In this review, we will focus on the current knowledge regarding the pathogenic roles Tfh cells play in IgG4-RD and outline potential therapeutic targets for future clinical intervention.
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Affiliation(s)
- Jingyi Xu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - Jiayu Zhai
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
- Center for Rare Disease, Peking University Third Hospital, Beijing, China
| | - Jinxia Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
- Center for Rare Disease, Peking University Third Hospital, Beijing, China
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2
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Jiang P, Jing Y, Zhao S, Lan C, Yang L, Dai X, Luo L, Cai S, Zhu Y, Miller H, Lai J, Zhang X, Zhao X, Wu Y, Yang J, Zhang W, Guan F, Zhong B, Umehara H, Lei J, Dong L, Liu C. Expression of USP25 associates with fibrosis, inflammation and metabolism changes in IgG4-related disease. Nat Commun 2024; 15:2627. [PMID: 38521787 PMCID: PMC10960850 DOI: 10.1038/s41467-024-45977-7] [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: 05/10/2023] [Accepted: 02/08/2024] [Indexed: 03/25/2024] Open
Abstract
IgG4-related disease (IgG4-RD) has complex clinical manifestations ranging from fibrosis and inflammation to deregulated metabolism. The molecular mechanisms underpinning these phenotypes are unclear. In this study, by using IgG4-RD patient peripheral blood mononuclear cells (PBMCs), IgG4-RD cell lines and Usp25 knockout mice, we show that ubiquitin-specific protease 25 (USP25) engages in multiple pathways to regulate fibrotic and inflammatory pathways that are characteristic to IgG4-RD. Reduced USP25 expression in IgG4-RD leads to increased SMAD3 activation, which contributes to fibrosis and induces inflammation through the IL-1β inflammatory axis. Mechanistically, USP25 prevents ubiquitination of RAC1, thus, downregulation of USP25 leads to ubiquitination and degradation of RAC1. Decreased RAC1 levels result in reduced aldolase A release from the actin cytoskeleton, which then lowers glycolysis. The expression of LYN, a component of the B cell receptor signalosome is also reduced in USP25-deficient B cells, which might result in B cell activation deficiency. Altogether, our results indicate a potential anti-inflammatory and anti-fibrotic role for USP25 and make USP25 a promising diagnostic marker and potential therapeutic target in IgG4-RD.
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Affiliation(s)
- Panpan Jiang
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Yukai Jing
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Siyu Zhao
- Department Immunology, School of Medicine, Yangtze University, Jingzhou, 434000, China
| | - Caini Lan
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Lu Yang
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Xin Dai
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Li Luo
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Shaozhe Cai
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Yingzi Zhu
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Heather Miller
- Cytek Biosciences, R&D Clinical Reagents, Fremont, CA, USA
| | - Juan Lai
- GeneMind Biosciences Company Limited, Shenzhen, 518001, China
| | - Xin Zhang
- GeneMind Biosciences Company Limited, Shenzhen, 518001, China
| | - Xiaochao Zhao
- GeneMind Biosciences Company Limited, Shenzhen, 518001, China
| | - Yonggui Wu
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China; Center for Scientific Research of Anhui Medical University, Hefei, Anhui, 230032, PR China
| | - Jingzhi Yang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, 250063, PR China
| | - Wen Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Beijing, 100730, China
| | - Fei Guan
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Bo Zhong
- Department of Gastrointestinal Surgery, Medical Research Institute, Frontier Science Center for Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Hisanori Umehara
- Department of Medicine, Nagahama City Hospital, Nagahama, 949-1701, Japan
| | - Jiahui Lei
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Lingli Dong
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China.
| | - Chaohong Liu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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3
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Tanaka S, Yamamoto T, Iwata A, Kiuchi M, Kokubo K, Iinuma T, Sugiyama T, Hanazawa T, Hirahara K, Ikeda K, Nakajima H. Single-cell RNA sequencing of submandibular gland reveals collagen type XV-positive fibroblasts as a disease-characterizing cell population of IgG4-related disease. Arthritis Res Ther 2024; 26:55. [PMID: 38378635 PMCID: PMC10877852 DOI: 10.1186/s13075-024-03289-7] [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: 11/30/2023] [Accepted: 02/16/2024] [Indexed: 02/22/2024] Open
Abstract
OBJECTIVES IgG4-related disease (IgG4-RD) is a systemic autoimmune disease with an unknown etiology, affecting single/multiple organ(s). Pathological findings include the infiltration of IgG4-producing plasma cells, obliterative phlebitis, and storiform fibrosis. Although immunological studies have shed light on the dysregulation of lymphocytes in IgG4-RD pathogenesis, the role of non-immune cells remains unclear. This study aimed to investigate the demographics and characteristics of non-immune cells in IgG4-RD and explore potential biomarkers derived from non-immune cells in the sera. METHODS We conducted single-cell RNA sequence (scRNA-seq) on non-immune cells isolated from submandibular glands of IgG4-RD patients. We focused on fibroblasts expressing collagen type XV and confirmed the presence of those fibroblasts using immunohistochemistry. Additionally, we measured the levels of collagen type XV in the sera of IgG4-RD patients. RESULTS The scRNA-seq analysis revealed several distinct clusters consisting of fibroblasts, endothelial cells, ductal cells, and muscle cells. Differential gene expression analysis showed upregulation of COL15A1 in IgG4-RD fibroblasts compared to control subjects. Notably, COL15A1-positive fibroblasts exhibited a distinct transcriptome compared to COL15A1-negative counterparts. Immunohistochemical analysis confirmed a significant presence of collagen type XV-positive fibroblasts in IgG4-RD patients. Furthermore, immune-suppressive therapy in active IgG4-RD patients resulted in decreased serum levels of collagen type XV. CONCLUSIONS Our findings suggest that collagen type XV-producing fibroblasts may represent a disease-characterizing non-immune cell population in IgG4-RD and hold potential as a disease-monitoring marker.
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Affiliation(s)
- Shigeru Tanaka
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan.
| | - Takuya Yamamoto
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan
| | - Arifumi Iwata
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan
| | - Masahiro Kiuchi
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kota Kokubo
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tomohisa Iinuma
- Department of Otorhinolaryngology/Head & Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takahiro Sugiyama
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan
| | - Toyoyuki Hanazawa
- Department of Otorhinolaryngology/Head & Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kiyoshi Hirahara
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kei Ikeda
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan.
- Department of Rheumatology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Tochigi, Mibu, 321 - 0293, Japan.
| | - Hiroshi Nakajima
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan
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Hao Q, Sun M, Liu Y. The spectrum of B cells in the pathogenesis, diagnosis and therapeutic applications of immunoglobulin G4-related disease. Clin Transl Immunology 2023; 12:e1477. [PMID: 38034079 PMCID: PMC10685088 DOI: 10.1002/cti2.1477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 10/11/2023] [Accepted: 11/13/2023] [Indexed: 12/02/2023] Open
Abstract
Immunoglobulin G4 (IgG4)-related disease is a chronic fibroinflammatory disease mediated by immune disorders. Given the challenging clinical diagnosis and treatment, knowledge of the pathogenesis of IgG4-related disease is important. The typical elevation of serum IgG4 concentrations and infiltration of IgG4-positive plasma cells in the involved tissues indicate the involvement of B lymphocytes in the pathogenesis of IgG4-related disease. Mass production of autoantibodies reflects abnormal activation of B cells, which causes tissue damage. Circulating plasmablasts are recently discovered markers that correlate with serum IgG4 concentration, the extent of organ involvement and disease activity. B-cell depletion therapy is an emerging curative strategy that can significantly alleviate clinical manifestations and achieve remission in patients with IgG4-related disease. These findings highlight the potential role of B cells in IgG4-related disease. In this review, we discuss the pathogenic impact of B lymphocytes on IgG4-related disease and describe novel therapies targeting B cells.
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Affiliation(s)
- Qiyuan Hao
- Department of Rheumatology and ImmunologyBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
| | - Meng Sun
- Pediatric ImmunologyChildren and Women Hospital, Karolinska InstituteStockholmSweden
| | - Yanying Liu
- Department of Rheumatology and ImmunologyBeijing Friendship Hospital, Capital Medical UniversityBeijingChina
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5
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Joachim A, Aussel R, Gélard L, Zhang F, Mori D, Grégoire C, Villazala Merino S, Gaya M, Liang Y, Malissen M, Malissen B. Defective LAT signalosome pathology in mice mimics human IgG4-related disease at single-cell level. J Exp Med 2023; 220:e20231028. [PMID: 37624388 PMCID: PMC10457416 DOI: 10.1084/jem.20231028] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
Mice with a loss-of-function mutation in the LAT adaptor (LatY136F) develop an autoimmune and type 2 inflammatory disorder called defective LAT signalosome pathology (DLSP). We analyzed via single-cell omics the trajectory leading to LatY136F DLSP and the underlying CD4+ T cell diversification. T follicular helper cells, CD4+ cytotoxic T cells, activated B cells, and plasma cells were found in LatY136F spleen and lung. Such cell constellation entailed all the cell types causative of human IgG4-related disease (IgG4-RD), an autoimmune and inflammatory condition with LatY136F DLSP-like histopathological manifestations. Most previously described T cell-mediated autoimmune manifestations require persistent TCR input. In contrast, following their first engagement by self-antigens, the autoreactive TCR expressed by LatY136F CD4+ T cells hand over their central role in T cell activation to CD28 costimulatory molecules. As a result, all subsequent LatY136F DLSP manifestations, including the production of autoantibodies, solely rely on CD28 engagement. Our findings elucidate the etiology of the LatY136F DLSP and qualify it as a model of IgG4-RD.
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Affiliation(s)
- Anais Joachim
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Rudy Aussel
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Léna Gélard
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
- Centre d’Immunophénomique, INSERM, CNRS, Aix Marseille Université, Marseille, France
| | - Fanghui Zhang
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
- School of Laboratory Medicine, Henan Key Laboratory for Immunology and Targeted Therapy, Xinxiang Medical University, Xinxiang, China
| | - Daiki Mori
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
- Centre d’Immunophénomique, INSERM, CNRS, Aix Marseille Université, Marseille, France
| | - Claude Grégoire
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Sergio Villazala Merino
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Mauro Gaya
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Yinming Liang
- School of Laboratory Medicine, Henan Key Laboratory for Immunology and Targeted Therapy, Xinxiang Medical University, Xinxiang, China
| | - Marie Malissen
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
- Centre d’Immunophénomique, INSERM, CNRS, Aix Marseille Université, Marseille, France
- Laboratory of Immunophenomics, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
| | - Bernard Malissen
- Aix Marseille Université, INSERM, CNRS, Centre d’Immunologie de Marseille-Luminy, Marseille, France
- Centre d’Immunophénomique, INSERM, CNRS, Aix Marseille Université, Marseille, France
- Laboratory of Immunophenomics, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
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6
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Li Y, Wang Z, Han F, Zhang M, Yang T, Chen M, Du J, Wang Y, Zhu L, Hou H, Chang Y, Han L, Lyu X, Zhang N, Sun W, Cai Z, Wei W. Single-cell transcriptome analysis profiles cellular and molecular alterations in submandibular gland and blood in IgG4-related disease. Ann Rheum Dis 2023; 82:1348-1358. [PMID: 37474274 DOI: 10.1136/ard-2023-224363] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/21/2023] [Indexed: 07/22/2023]
Abstract
OBJECTIVES The aim of this study is to profile the transcriptional landscapes of affected tissues and peripheral blood mononuclear cells (PBMCs) at the single-cell level in IgG4-related disease (IgG4-RD). Identifying the cell populations and crosstalk between immune cells and non-immune cells will assist us in understanding the aetiology of IgG4-RD. METHODS We performed single-cell RNA sequencing analysis on submandibular glands (SMGs) and PBMCs from patients with IgG4-RD and matched controls. Additionally, bulk RNA sequencing of PBMCs was used to construct the immune repertoire. Furthermore, multiplex immunofluorescence staining was performed to validate the transcriptomic results. RESULTS We identified three novel subsets of tissue-resident immune cells in the SMGs of patients with IgG4-RD. TOP2A_B cells and TOP2A_T cells had stemness signatures, and trajectory analysis showed that TOP2A_B cells may differentiate into IgG4+plasma cells and that TOP2A_T cells may differentiate into T follicular helper (Tfh) cells. ICOS_PD-1_B cells with Tfh-like characteristics appeared to be an intermediate state in the differentiation from B cells to IgG4+plasma cells. The cellular communication patterns within immune cells and between immune cells and non-immune cells were altered in IgG4-RD compared with controls. Consistently, infection-related pathways were shared in B cells and T cells from SMGs and PBMCs. Furthermore, immune clonotype analysis of PBMC samples showed the complementary determining region 3 amino acid CQQSYSTPYTF was expanded in patients with IgG4-RD. CONCLUSION Our data revealed the cellular and molecular changes at the single-cell resolution of IgG4-RD and provide valuable insights into the aetiology and novel therapeutic targets of the autoimmune disease.
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Affiliation(s)
- Yanmei Li
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Zhiqin Wang
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
- National Key Laboratory of Blood Science, Tianjin, China
| | - Feng Han
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Mei Zhang
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Tong Yang
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Ming Chen
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Jun Du
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Yin Wang
- Department of Oral Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Li Zhu
- Department of Ultrasound, Tianjin Medical University General Hospital, Tianjin, China
| | - Hou Hou
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Yanxia Chang
- Department of Research and Development, Seekgene Biotechnology Co, Ltd, Beijing, China
| | - Lin Han
- Department of Oral Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Xing Lyu
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Na Zhang
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Wenwen Sun
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
| | - Zhigang Cai
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
- National Key Laboratory of Blood Science, Tianjin, China
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Wei Wei
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Clinical Research Center for Rheumatic and Immune Diseases, Tianjin, China
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7
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Ji Z, Lu W, Wu S, Zhang Y, Meng D, Zhang X, Dai X, Chen H, Ma L, Sun Y, Jiang L, Kong X. Single-Cell RNA-Sequencing Reveals Peripheral T Helper Cells Promoting the Development of IgG4-Related Disease by Enhancing B Cell Activation and Differentiation. Int J Mol Sci 2023; 24:13735. [PMID: 37762039 PMCID: PMC10530310 DOI: 10.3390/ijms241813735] [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: 06/01/2023] [Revised: 08/17/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Abnormal B cell differentiation plays a critical role in IgG4-related disease (IgG4-RD), but the underlying mechanism remains largely unknown. We investigated the cell landscape from three IgG4-RD retroperitoneal tissues and three control tissues using single-cell RNA-sequencing. Critical cell type or markers were further validated in the peripheral blood from the patients with IgG4-RD and healthy controls via flow cytometry as well as in the IgG4-RD and control tissue via immunofluorescence staining. The increases in B cells, plasma cells, and CD4+ T cells were found in IgG4-RD retroperitoneal tissue. Importantly, among CD4+ T cells, an increase in CD4+CXCR5-PD1hi peripheral T helper (Tph) cells with a high expression of IL-21 and TIGIT was discovered in IgG4-RD tissue, which was further validated in peripheral blood of the patients with IgG4-RD. The Tph cell and TIGIT+ Tph cell proportion were remarkably higher in active IgG4-RD patients and correlated with disease activity. Moreover, TIGIT+CD4+ cells were able to promote B cell differentiation via IL-21. Our study revealed that Tph cells are increased in IgG4-RD and probably play critical roles in B cell differentiation through TIGIT-IL-21 axis. Peripheral Tph cell and TIGIT+Tph cell are potential markers for IgG4-RD disease activity.
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Affiliation(s)
- Zongfei Ji
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
| | - Weiqi Lu
- Department of General Surgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China
| | - Sifan Wu
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
| | - Yong Zhang
- Department of General Surgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China
| | - Dan Meng
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Xiao Zhang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
| | - Xiaojuan Dai
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
| | - Huiyong Chen
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
| | - Lili Ma
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Ying Sun
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
| | - Lindi Jiang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
- Evidence-Based Medicine Center, Fudan University, Shanghai 200032, China
| | - Xiufang Kong
- Department of Rheumatology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; (Z.J.)
- Evidence-Based Medicine Center, Fudan University, Shanghai 200032, China
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8
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Chen IR, Huang CC, Tu SJ, Wang GJ, Lai PC, Lee YT, Yen JC, Chang YS, Chang JG. Dysregulation of Immune Cell Subpopulations in Atypical Hemolytic Uremic Syndrome. Int J Mol Sci 2023; 24:10007. [PMID: 37373158 DOI: 10.3390/ijms241210007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Atypical hemolytic uremic syndrome (aHUS) is a rare, life-threatening thrombotic microangiopathy. Definitive biomarkers for disease diagnosis and activity remain elusive, making the exploration of molecular markers paramount. We conducted single-cell sequencing on peripheral blood mononuclear cells from 13 aHUS patients, 3 unaffected family members of aHUS patients, and 4 healthy controls. We identified 32 distinct subpopulations encompassing 5 B-cell types, 16 T- and natural killer (NK) cell types, 7 monocyte types, and 4 other cell types. Notably, we observed a significant increase in intermediate monocytes in unstable aHUS patients. Subclustering analysis revealed seven elevated expression genes, including NEAT1, MT-ATP6, MT-CYB, VIM, ACTG1, RPL13, and KLRB1, in unstable aHUS patients, and four heightened expression genes, including RPS27, RPS4X, RPL23, and GZMH genes, in stable aHUS patients. Additionally, an increase in the expression of mitochondria-related genes suggested a potential influence of cell metabolism on the clinical progression of the disease. Pseudotime trajectory analysis revealed a unique immune cell differentiation pattern, while cell-cell interaction profiling highlighted distinctive signaling pathways among patients, family members, and controls. This single-cell sequencing study is the first to confirm immune cell dysregulation in aHUS pathogenesis, offering valuable insights into molecular mechanisms and potential new diagnostic and disease activity markers.
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Affiliation(s)
- I-Ru Chen
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Division of Nephrology and the Kidney Institute, Department of Internal Medicine, China Medical University and Hospitals, Taichung 404332, Taiwan
| | - Chiu-Ching Huang
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Division of Nephrology and the Kidney Institute, Department of Internal Medicine, China Medical University and Hospitals, Taichung 404332, Taiwan
| | - Siang-Jyun Tu
- Center for Precision Medicine, China Medical University Hospital, Taichung 404332, Taiwan
| | - Guei-Jane Wang
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 404332, Taiwan
| | - Ping-Chin Lai
- Division of Nephrology and the Kidney Institute, Department of Internal Medicine, China Medical University and Hospitals, Taichung 404332, Taiwan
| | - Ya-Ting Lee
- Center for Precision Medicine, China Medical University Hospital, Taichung 404332, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 404332, Taiwan
- Epigenome Research Center, China Medical University Hospital, Taichung 404332, Taiwan
| | - Ju-Chen Yen
- Center for Precision Medicine, China Medical University Hospital, Taichung 404332, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 404332, Taiwan
- Epigenome Research Center, China Medical University Hospital, Taichung 404332, Taiwan
| | - Ya-Sian Chang
- Center for Precision Medicine, China Medical University Hospital, Taichung 404332, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 404332, Taiwan
- Epigenome Research Center, China Medical University Hospital, Taichung 404332, Taiwan
| | - Jan-Gowth Chang
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Center for Precision Medicine, China Medical University Hospital, Taichung 404332, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 404332, Taiwan
- Epigenome Research Center, China Medical University Hospital, Taichung 404332, Taiwan
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Qing P, Lu C, Yan B, Liu C, Fox DA, Zhao Y, Liu Y, Tan C. Case report: IgG4-related intracranial lesions mimicking multiple sclerosis in a 14-year-old girl. Front Neurol 2022; 13:1007153. [PMID: 36247763 PMCID: PMC9554464 DOI: 10.3389/fneur.2022.1007153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives IgG4-related disease (IgG4-RD) is distinguished by the infiltration of IgG4-positive plasma cells in a variety of tissues and organs. Even so, central nervous system lesions associated with IgG4-RD are scarce. We present a case of IgG4-related brain parenchymal lesions that mimics multiple sclerosis in a young girl. Methods The patient was followed by our neurology and rheumatology teams. Clinical information was recorded, and the brain was screened using magnetic resonance imaging (MRI). During follow-up, we examined serum IgE, IgG and IgG4 and lymph node biopsy. Results Here, we presented details of a 14-year-old Chinese girl suffering from diplopia, left eyelid ptosis, right facial numbness, and right lower limb weakness admitted to our institute. Brain MRI revealed multiple sclerosis-like lesions in the brain parenchyma and spinal cord. During the follow-up, she developed lymphadenopathy. Elevation of serum, IgG, IgG4 and IgE and lymph node biopsy favors a diagnosis of IgG4-RD. The patient had a good response to glucocorticoids and mycophenolate mofetil. The literature review summarized eight previously reported IgG4-RD involving brain parenchyma. Discussion Our case expands the known age spectrum of IgG4-RD. The intracranial IgG4-RD is rare and could mimic multiple sclerosis. Careful examination and dynamic review of disease history are crucial in the differential diagnosis.
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Affiliation(s)
- Pingying Qing
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Chenyang Lu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Bing Yan
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Chang Liu
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - David A. Fox
- Division of Rheumatology, Clinical Autoimmunity Center of Excellence, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Yi Zhao
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Chunyu Tan
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,*Correspondence: Chunyu Tan
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