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Bhuyan ZA, Rahman MA, Maradana MR, Mehdi AM, Bergot AS, Simone D, El-Kurdi M, Garrido-Mesa J, Cai CBB, Cameron AJ, Hanson AL, Nel HJ, Kenna T, Leo P, Rehaume L, Brown MA, Ciccia F, Thomas R. Genetically encoded Runx3 and CD4 + intestinal epithelial lymphocyte deficiencies link SKG mouse and human predisposition to spondyloarthropathy. Clin Immunol 2023; 247:109220. [PMID: 36596403 DOI: 10.1016/j.clim.2022.109220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/21/2022] [Accepted: 12/25/2022] [Indexed: 01/02/2023]
Abstract
Disturbances in immune regulation, intestinal dysbiosis and inflammation characterize ankylosing spondylitis (AS), which is associated with RUNX3 loss-of-function variants. ZAP70W163C mutant (SKG) mice have reduced ZAP70 signaling, spondyloarthritis and ileitis. In small intestine, Foxp3+ regulatory T cells (Treg) and CD4+CD8αα+TCRαβ+ intraepithelial lymphocytes (CD4-IEL) control inflammation. TGF-β and retinoic acid (RA)-producing dendritic cells and MHC-class II+ intestinal epithelial cells (IEC) are required for Treg and CD4-IEL differentiation from CD4+ conventional or Treg precursors, with upregulation of Runx3 and suppression of ThPOK. We show in SKG mouse ileum, that ZAP70W163C or ZAP70 inhibition prevented CD4-IEL but not Treg differentiation, dysregulating Runx3 and ThPOK. TGF-β/RA-mediated CD4-IEL development, T-cell IFN-γ production, MHC class-II+ IEC, tissue-resident memory T-cell and Runx3-regulated genes were reduced. In AS intestine, CD4-IEL were decreased, while in AS blood CD4+CD8+ T cells were reduced and Treg increased. Thus, genetically-encoded TCR signaling dysfunction links intestinal T-cell immunodeficiency in mouse and human spondyloarthropathy.
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Affiliation(s)
- Zaied Ahmed Bhuyan
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - M Arifur Rahman
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Muralidhara Rao Maradana
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Ahmed M Mehdi
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Anne-Sophie Bergot
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Davide Simone
- Dipartimento di Medicina di Precisione, Section of Rheumatology, Università degli Studi della Campania L. Vanvitelli, Naples, Italy
| | - Marya El-Kurdi
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Jose Garrido-Mesa
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Cheng Bang Benjamin Cai
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Amy J Cameron
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Aimee L Hanson
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Hendrik J Nel
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Tony Kenna
- Queensland University of Technology, Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland 4006, Australia
| | - Paul Leo
- Queensland University of Technology, Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland 4006, Australia
| | - Linda Rehaume
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia
| | - Matthew A Brown
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; Genomics England Ltd, Charterhouse Square, London, United Kingdom
| | - Francesco Ciccia
- Dipartimento di Medicina di Precisione, Section of Rheumatology, Università degli Studi della Campania L. Vanvitelli, Naples, Italy
| | - Ranjeny Thomas
- Frazer Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland 4102, Australia.
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