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Pouw JNJ, Nordkamp MAMMO, van Kempen TT, Concepcion ANA, van Laar JMJ, van Wijk FF, Spierings JJ, Leijten EFAE, Boes MM. Regulatory T cells in psoriatic arthritis: an IL-17A-producing, Foxp3 intCD161 + RORγt + ICOS + phenotype, that associates with the presence of ADAMTSL5 autoantibodies. Sci Rep 2022; 12:20675. [PMID: 36450783 PMCID: PMC9712434 DOI: 10.1038/s41598-022-24924-w] [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: 07/18/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022] Open
Abstract
In psoriatic arthritis (PsA), predisposing class I HLA alleles, the presence of synovial clonally proliferated CD8 + T cells and autoantibodies all point towards the loss of immune tolerance. However, the key mechanisms that lead to immune dysregulation are not fully understood. In other types of inflammatory arthritis, T regulatory cell (Treg) dysfunction and plasticity at sites of inflammation were suggested to negatively affect peripheral tolerance. We here addressed if Treg variances associate with psoriatic disease. We collected clinical data, sera and peripheral blood mononuclear cells from 13 healthy controls, 21 psoriasis and 21 PsA patients. In addition, we obtained synovial fluid mononuclear cells from 6 PsA patients. We studied characteristics of CD4 + CD25 + CD127loFoxp3 + Tregs by flow cytometry and used ELISA to quantify antibodies against ADAMTSL5, a recently discovered autoantigen in psoriatic disease. In comparison with their circulating counterparts, Tregs from inflamed joints express increased levels of ICOS, CTLA-4 and TIGIT. Furthermore, synovial fluid-derived Tregs have a distinct phenotype, characterized by IL-17A production and upregulation of CD161 and RORγt. We identified a subset of Tregs with intermediate Foxp3 expression as the major cytokine producer. Furthermore, ICOS + Tregs associate with PsA disease activity as measured by PASDAS. Lastly, we observed that presence of the Foxp3int Tregs associates with an increased abundance of anti-ADAMTSL5 autoantibodies. Tregs derived from the inflammatory environment of inflamed PsA joints exhibit a distinct phenotype, which associates with loss of peripheral immune tolerance in psoriatic disease.
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Affiliation(s)
- J. N. Juliëtte Pouw
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands ,grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands
| | - M. A. M. Michel Olde Nordkamp
- grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands
| | - T. Tessa van Kempen
- grid.440506.30000 0000 9631 4629Biomedical Laboratory Sciences, Avans University of Applied Sciences, 4800 RA Breda, The Netherlands
| | - A. N. Arno Concepcion
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - J. M. Jacob van Laar
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - F. Femke van Wijk
- grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands
| | - J. Julia Spierings
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - E. F. A. Emmerik Leijten
- grid.452818.20000 0004 0444 9307Department of Rheumatology, Sint Maartenskliniek, 6500 GM Nijmegen, The Netherlands
| | - M. Marianne Boes
- grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands ,grid.5477.10000000120346234Department of Pediatric Immunology, Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands
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Huang Y, Fang S, Zeng T, Chen J, Yang L, Sun G, Dai R, An Y, Tang X, Dou Y, Zhao X, Zhou L. Clinical and immunological characteristics of five patients with immune dysregulation, polyendocrinopathy, enteropathy, X-linked syndrome in China–expanding the atypical phenotypes. Front Immunol 2022; 13:972746. [PMID: 36091011 PMCID: PMC9448973 DOI: 10.3389/fimmu.2022.972746] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background Immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX) syndrome is a rare disorder of the immune regulatory system caused by forkhead box P3 (FOXP3) mutations. Abnormal numbers or functions of regulatory T (Treg) cells account for the various autoimmune symptoms. We aimed to explore the molecular genetics and phenotypic spectra of patients with atypical IPEX syndrome in China. Methods We analyzed the molecular, clinical and immune phenotype characteristics of five Chinese patients with FOXP3 mutations. Results We summarized the molecular and phenotypic features of five patients with FOXP3 mutations, including two novel mutations. Four of the five patients displayed atypical phenotypes, and one developed immune-related peripheral neuropathy. Three of the five patients showed normal frequencies of Treg cells, but the proportions of subsets of Treg cells, CD4+ T cells and B cells were out of balance. Conclusions Our report broadens the understanding of the clinical features of atypical IPEX syndrome. Our detailed analyses of the immunological characteristics of these patients enhance the understanding of the possible mechanisms underlying the clinical manifestations.
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Affiliation(s)
- Yu Huang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Department of Hematological Oncology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Shuyu Fang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Ting Zeng
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Junjie Chen
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Lu Yang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Gan Sun
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Rongxin Dai
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Department of Rheumatism and Immunology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Yunfei An
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Department of Rheumatism and Immunology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Xuemei Tang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Department of Rheumatism and Immunology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Ying Dou
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Department of Hematological Oncology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaodong Zhao
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Xiaodong Zhao, ; Lina Zhou,
| | - Lina Zhou
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Xiaodong Zhao, ; Lina Zhou,
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