1
|
Malko D, Elmzzahi T, Beyer M. Implications of regulatory T cells in non-lymphoid tissue physiology and pathophysiology. Front Immunol 2022; 13:954798. [PMID: 35936011 PMCID: PMC9354719 DOI: 10.3389/fimmu.2022.954798] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 06/29/2022] [Indexed: 11/26/2022] Open
Abstract
Treg cells have been initially described as gatekeepers for the control of autoimmunity, as they can actively suppress the activity of other immune cells. However, their role goes beyond this as Treg cells further control immune responses during infections and tumor development. Furthermore, Treg cells can acquire additional properties for e.g., the control of tissue homeostasis. This is instructed by a specific differentiation program and the acquisition of effector properties unique to Treg cells in non-lymphoid tissues. These tissue Treg cells can further adapt to their tissue environment and acquire distinct functional properties through specific transcription factors activated by a combination of tissue derived factors, including tissue-specific antigens and cytokines. In this review, we will focus on recent findings extending our current understanding of the role and differentiation of these tissue Treg cells. As such we will highlight the importance of tissue Treg cells for tissue maintenance, regeneration, and repair in adipose tissue, muscle, CNS, liver, kidney, reproductive organs, and the lung.
Collapse
Affiliation(s)
- Darya Malko
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
- Immunogenomics and Neurodegeneration, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Tarek Elmzzahi
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
- Immunogenomics and Neurodegeneration, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Marc Beyer
- Immunogenomics and Neurodegeneration, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Platform foR SinglE Cell GenomIcS and Epigenomics (PRECISE), Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) and University of Bonn, Bonn, Germany
| |
Collapse
|
3
|
Vasanthakumar A, Liao Y, Teh P, Pascutti MF, Oja AE, Garnham AL, Gloury R, Tempany JC, Sidwell T, Cuadrado E, Tuijnenburg P, Kuijpers TW, Lalaoui N, Mielke LA, Bryant VL, Hodgkin PD, Silke J, Smyth GK, Nolte MA, Shi W, Kallies A. The TNF Receptor Superfamily-NF-κB Axis Is Critical to Maintain Effector Regulatory T Cells in Lymphoid and Non-lymphoid Tissues. Cell Rep 2017; 20:2906-2920. [PMID: 28889989 DOI: 10.1016/j.celrep.2017.08.068] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [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: 05/09/2017] [Revised: 08/16/2017] [Accepted: 08/23/2017] [Indexed: 12/22/2022] Open
Abstract
After exiting the thymus, Foxp3+ regulatory T (Treg) cells undergo further differentiation in the periphery, resulting in the generation of mature, fully suppressive effector (e)Treg cells in a process dependent on TCR signaling and the transcription factor IRF4. Here, we show that tumor necrosis factor receptor superfamily (TNFRSF) signaling plays a crucial role in the development and maintenance of eTreg cells. TNFRSF signaling activated the NF-κB transcription factor RelA, which was required to maintain eTreg cells in lymphoid and non-lymphoid tissues, including RORγt+ Treg cells in the small intestine. In response to TNFRSF signaling, RelA regulated basic cellular processes, including cell survival and proliferation, but was dispensable for IRF4 expression or DNA binding, indicating that both pathways operated independently. Importantly, mutations in the RelA binding partner NF-κB1 compromised eTreg cells in humans, suggesting that the TNFRSF-NF-κB axis was required in a non-redundant manner to maintain eTreg cells in mice and humans.
Collapse
Affiliation(s)
- Ajithkumar Vasanthakumar
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia.
| | - Yang Liao
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Peggy Teh
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia; Alfred Health and Western Health, Melbourne, Australia
| | - Maria F Pascutti
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Anna E Oja
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Alexandra L Garnham
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Renee Gloury
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Jessica C Tempany
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Tom Sidwell
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Eloy Cuadrado
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands; Department of Pediatric Hematology, Immunology, and Infectious Diseases, Emma Children's Hospital, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Paul Tuijnenburg
- Department of Pediatric Hematology, Immunology, and Infectious Diseases, Emma Children's Hospital, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Taco W Kuijpers
- Department of Pediatric Hematology, Immunology, and Infectious Diseases, Emma Children's Hospital, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Najoua Lalaoui
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Cell Signalling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Lisa A Mielke
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Vanessa L Bryant
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Philip D Hodgkin
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - John Silke
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Cell Signalling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Gordon K Smyth
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; The Department of Mathematics and Statistics, University of Melbourne, Melbourne, Australia
| | - Martijn A Nolte
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Wei Shi
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Computing and Information Systems, University of Melbourne, Melbourne, Australia
| | - Axel Kallies
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia.
| |
Collapse
|
4
|
Müller M, Herrath J, Malmström V. IL-1R1 is expressed on both Helios(+) and Helios(-) FoxP3(+) CD4(+) T cells in the rheumatic joint. Clin Exp Immunol 2015; 182:90-100. [PMID: 26076982 DOI: 10.1111/cei.12668] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2015] [Indexed: 01/22/2023] Open
Abstract
Synovial fluid from rheumatic joints displays a well-documented enrichment of forkhead box protein 3 (FoxP3)(+) regulatory T cells (tissue Tregs ). However, we have previously demonstrated that the mere frequency of FoxP3 expressing cells cannot predict suppressive function. Instead, extrinsic factors and the functional heterogeneity of FoxP3(+) Tregs complicate the picture. Here, we investigated FoxP3(+) Tregs from blood and synovial fluid of patients with rheumatic disease in relation to Helios expression by assessing phenotypes, proliferative potential and cytokine production by flow cytometry. Our aim was to investigate the discriminatory potential of Helios when studying FoxP3(+) Tregs in an inflammatory setting. We demonstrate that the majority of the synovial FoxP3(+) CD4(+) T cells in patients with inflammatory arthritis expressed Helios. Helios(+) FoxP3(+) Tregs displayed a classical Treg phenotype with regard to CD25 and cytotoxic T lymphocyte-associated antigen (CTLA)-4 expression and a demethylated Treg -specific demethylated region (TSDR). Furthermore, Helios(+) FoxP3(+) T cells were poor producers of the effector cytokines interferon (IFN)-γ and tumour necrosis factor (TNF), as well as of the anti-inflammatory cytokine interleukin (IL)-10. The less abundant Helios(-) FoxP3(+) T cell subset was also enriched significantly in the joint, displayed a overlapping phenotype to the double-positive Treg cells with regard to CTLA-4 expression, but differed by their ability to secrete IL-10, IFN-γ and TNF upon T cell receptor (TCR) cross-linking. We also demonstrate a striking enrichment of IL-1R1 expression in synovial CD4(+) T cells that was restricted to the CD25-expressing FoxP3 population, but independent of Helios. IL-1R1 expression appears to define a tissue Treg cell phenotype together with the expression of CD25, glucocorticoid-induced TNF receptor family-related gene (GITR) and CTLA-4.
Collapse
Affiliation(s)
- M Müller
- Rheumatology Unit, Department of Medicine, Karolinska University Hospital Solna, Karolinska Institutet, Stockholm, Sweden
| | - J Herrath
- Rheumatology Unit, Department of Medicine, Karolinska University Hospital Solna, Karolinska Institutet, Stockholm, Sweden
| | - V Malmström
- Rheumatology Unit, Department of Medicine, Karolinska University Hospital Solna, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|