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Jayachandran R, Gumienny A, Bolinger B, Ruehl S, Lang MJ, Fucile G, Mazumder S, Tchang V, Woischnig AK, Stiess M, Kunz G, Claudi B, Schmaler M, Siegmund K, Li J, Dertschnig S, Holländer G, Medina E, Karrer U, Moshous D, Bumann D, Khanna N, Rossi SW, Pieters J. Disruption of Coronin 1 Signaling in T Cells Promotes Allograft Tolerance while Maintaining Anti-Pathogen Immunity. Immunity 2019; 50:152-165.e8. [PMID: 30611611 DOI: 10.1016/j.immuni.2018.12.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/18/2018] [Accepted: 12/10/2018] [Indexed: 11/18/2022]
Abstract
The ability of the immune system to discriminate self from non-self is essential for eradicating microbial pathogens but is also responsible for allograft rejection. Whether it is possible to selectively suppress alloresponses while maintaining anti-pathogen immunity remains unknown. We found that mice deficient in coronin 1, a regulator of naive T cell homeostasis, fully retained allografts while maintaining T cell-specific responses against microbial pathogens. Mechanistically, coronin 1-deficiency increased cyclic adenosine monophosphate (cAMP) concentrations to suppress allo-specific T cell responses. Costimulation induced on microbe-infected antigen presenting cells was able to overcome cAMP-mediated immunosuppression to maintain anti-pathogen immunity. In vivo pharmacological modulation of this pathway or a prior transfer of coronin 1-deficient T cells actively suppressed allograft rejection. These results define a coronin 1-dependent regulatory axis in T cells important for allograft rejection and suggest that modulation of this pathway may be a promising approach to achieve long-term acceptance of mismatched allografts.
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Affiliation(s)
| | | | | | | | | | - Geoffrey Fucile
- Swiss Institute of Bioinformatics, sciCORE Computing Center, University of Basel, Basel, Switzerland
| | | | | | - Anne-Kathrin Woischnig
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | | | | | | | - Mathias Schmaler
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | | | | | - Simone Dertschnig
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | - George Holländer
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland; Department of Paediatrics, University of Oxford, Oxford, UK
| | - Eva Medina
- Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Urs Karrer
- Division of Infectious Diseases and Department of Medicine, Cantonal Hospital of Winterthur, Winterthur, Switzerland
| | - Despina Moshous
- Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France and APHP Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France
| | - Dirk Bumann
- Biozentrum, University of Basel, Basel, Switzerland
| | - Nina Khanna
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland; Division of Infectious Diseases, University and University Hospital of Basel, Switzerland
| | - Simona W Rossi
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | - Jean Pieters
- Biozentrum, University of Basel, Basel, Switzerland.
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Tchang VSY, Stiess M, Siegmund K, Karrer U, Pieters J. Role for coronin 1 in mouse NK cell function. Immunobiology 2017; 222:291-300. [PMID: 27717523 DOI: 10.1016/j.imbio.2016.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 09/17/2016] [Indexed: 10/21/2022]
Abstract
Coronin 1, a member of the evolutionary conserved WD repeat protein family of coronin proteins is expressed in all leukocytes, but a role for coronin 1 in natural killer (NK) cell homeostasis and function remains unclear. Here, we have analyzed the number and functionality of NK cells in the presence and absence of coronin 1. In coronin 1-deficient mice, absolute NK cell numbers and phenotype were comparable to wild type mice in blood, spleen and liver. Following in vitro stimulation of the activating NK cell receptors NK1.1, NKp46, Ly49D and NKG2D, coronin 1-deficient NK cells were functional with respect to interferon-γ production, degranulation and intracellular Ca2+ mobilization. Also, both wild type as well as coronin 1-deficient NK cells showed comparable cytotoxic activity. Furthermore, activation and functionality of NK cells following Vesicular Stomatitis Virus (VSV) infection was similar between wild type and coronin 1-deficient mice. Taken together these data suggest that coronin 1 is dispensable for mouse NK cell homeostasis and function.
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Affiliation(s)
- Vincent Sam Yong Tchang
- Biozentrum, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland; Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich, Ramistrasse 100, CH-8091 Zurich, Switzerland
| | - Michael Stiess
- Biozentrum, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Kerstin Siegmund
- Biozentrum, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Urs Karrer
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich, Ramistrasse 100, CH-8091 Zurich, Switzerland; Department of Medicine, Cantonal Hospital of Winterthur, Brauerstrasse 15, CH-8401 Winterthur, Switzerland
| | - Jean Pieters
- Biozentrum, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland.
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Tokarz-Deptuła B, Malinowska M, Adamiak M, Deptuła W. Coronins and their role in immunological phenomena. Cent Eur J Immunol 2017; 41:435-441. [PMID: 28450807 PMCID: PMC5382889 DOI: 10.5114/ceji.2016.65143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/06/2016] [Indexed: 02/05/2023] Open
Abstract
Coronins are a large family of proteins occurring in many eukaryotes. In mammals, seven coronin genes have been identified, evidencing that coronins 1 to 6 present classic coronin structure, while coronin 7 is a tandem coronin particle, without a spiral domain, although the best characterised coronin, in terms of both structure and function, is the mammalian coronin 1. It has been proven that they are related to regulation of actin dynamics, e.g. as a result of interaction with the complex of proteins Arp2/3. These proteins also modulate the activity of immune system cells, including lymphocyte T and B cells, neutrophils and macrophages. They are involved in bacterial infections with Mycobacterium tuberculosis, M. leprae and Helicobacter pylori and participate in the response to viral infections, e.g. infections of lymphocytic choriomeningitis virus (LCMV) and vesicular stomatitis Indiana virus (VSV). Also their involvement in autoimmune diseases such as lupus erythematosus has been recorded.
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Affiliation(s)
| | | | - Mateusz Adamiak
- Department of Immunology, Faculty of Biology, University of Szczecin, Poland
| | - Wiesław Deptuła
- Department of Immunology, Faculty of Biology, University of Szczecin, Poland
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Siegmund K, Klepsch V, Hermann-Kleiter N, Baier G. Proof of Principle for a T Lymphocyte Intrinsic Function of Coronin 1A. J Biol Chem 2016; 291:22086-22092. [PMID: 27566541 PMCID: PMC5063991 DOI: 10.1074/jbc.m116.748012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/19/2016] [Indexed: 11/06/2022] Open
Abstract
Coronins are evolutionarily conserved proteins that were originally identified as modulators of actin-dependent processes. Studies analyzing complete Coronin 1a knock-out mice have shown that this molecule is an important regulator of naive T cell homeostasis and it has been linked to immune deficiencies as well as autoimmune disorders. Nevertheless, because Coronin 1A is strongly expressed in all leukocyte subsets, it is not conclusive whether or not this phenotype is attributed to a T cell-intrinsic function of Coronin 1A. To address this research question, we have generated a T cell-specific Coronin 1a knock-out mouse (Coro1afl/fl × Cd4[Cre]). Deletion of Coronin 1A specifically in T cells led to a strong reduction in T cell number and a shift toward the effector/memory phenotype in peripheral lymphoid organs when compared with Cd4[Cre] mice expressing wild-type Coronin 1A. In contrast to peripheral lymphoid tissue, thymocyte number and subsets were not affected by the deletion of Coronin 1a Furthermore, T cell-specific Coronin 1a knock-out mice were largely resistant to the induction of autoimmunity when tested in the myelin oligoglycoprotein-induced EAE mouse model of multiple sclerosis. Thus, the phenotype of T cell-specific Coronin 1a deletion resembles the phenotype observed with conventional (whole body) Coronin 1a knock-out mice. In summary, our findings provide formal proof of the predominant T cell-intrinsic role of Coronin 1A.
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Affiliation(s)
- Kerstin Siegmund
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
| | - Victoria Klepsch
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
| | - Natascha Hermann-Kleiter
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
| | - Gottfried Baier
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
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Jayachandran R, Pieters J. Regulation of immune cell homeostasis and function by coronin 1. Int Immunopharmacol 2015; 28:825-8. [DOI: 10.1016/j.intimp.2015.03.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 03/28/2015] [Indexed: 12/24/2022]
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Pieters J, Müller P, Jayachandran R. On guard: coronin proteins in innate and adaptive immunity. Nat Rev Immunol 2013; 13:510-8. [PMID: 23765056 DOI: 10.1038/nri3465] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent work has implicated members of the evolutionarily conserved family of coronin proteins - in particular coronin 1 - in immune homeostasis. Coronins are involved in processes as diverse as pathogen survival in phagocytes and homeostatic T cell signalling. Notably, in both mice and humans, coronin mutations are associated with immune deficiencies and resistance to autoimmunity. In this article, we review what is currently known about these conserved molecules and discuss a potential common mechanism that underlies their diverse activities, which seem to involve cytoskeletal interactions as well as calcium-calcineurin signalling.
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Affiliation(s)
- Jean Pieters
- Biozentrum, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
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Arandjelovic S, McKenney KR, Leming SS, Mowen KA. ATP induces protein arginine deiminase 2-dependent citrullination in mast cells through the P2X7 purinergic receptor. THE JOURNAL OF IMMUNOLOGY 2012; 189:4112-22. [PMID: 22984079 DOI: 10.4049/jimmunol.1201098] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Posttranslational modifications regulate physiology either by directly modulating protein function or by impacting immune recognition of self-proteins. Citrullination is a posttranslational modification formed by the conversion of arginine residues into the citrulline amino acid by protein arginine deiminase (PAD) family members. We have identified mast cells as a major source of the PAD2 enzyme. Activation of the P2X7 purinergic receptor (P2X7) by the inflammatory "danger" signal ATP induces PAD2 activity and robust protein citrullination. P2X7-mediated activation of PAD2 is sensitive to p38 MAPK and protein kinase C inhibitors, and PAD2 regulates the expression of the TNFR2, Adamts-9, and Rab6b transcripts in mast cells. Further, the PAD2 enzyme and its citrullinated substrate proteins are released from mast cells on activation with ATP. PAD2 expression is closely linked with inflammation in rheumatoid arthritis (RA) synovial tissue, and PAD2 and citrullinated proteins are found in the synovial fluid of RA patients. In addition, RA is associated with the development of autoantibodies to citrullinated self-proteins. Our results suggest that P2X7 activation of mast cells may play a role in inflammation by providing PAD2 and PAD2 substrates access to the extracellular space.
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Affiliation(s)
- Sanja Arandjelovic
- Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA 92093, USA
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Föger N, Jenckel A, Orinska Z, Lee KH, Chan AC, Bulfone-Paus S. Differential regulation of mast cell degranulation versus cytokine secretion by the actin regulatory proteins Coronin1a and Coronin1b. ACTA ACUST UNITED AC 2011; 208:1777-87. [PMID: 21844203 PMCID: PMC3171099 DOI: 10.1084/jem.20101757] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Coronin1a inhibits mast cell degranulation through actin cytoskeletal dynamics while augmenting cytokine secretion, an effect exacerbated by additional loss of Coronin1b. Mast cell (MC) activation via aggregation of the high affinity IgE receptor (FcεRI) causes degranulation and release of proinflammatory mediators in a process that involves the reorganization of the actin cytoskeleton. However, the regulatory pathways and the molecular links between cytoskeletal changes and MC function are incompletely understood. In this study, we provide genetic evidence for a critical role of the actin-regulatory proteins Coronin1a (Coro1a) and Coro1b on exocytic pathways in MCs: Coro1a−/− bone marrow–derived MCs exhibit increased FcεRI-mediated degranulation of secretory lysosomes but significantly reduced secretion of cytokines. Hyperdegranulation of Coro1a−/− MCs is further augmented by the additional loss of Coro1b. In vivo, Coro1a−/−Coro1b−/− mice displayed enhanced passive cutaneous anaphylaxis. Functional reconstitution assays revealed that the inhibitory effect of Coro1a on MC degranulation strictly correlates with cortical localization of Coro1a, requires its filamentous actin–binding activity, and is regulated by phosphorylation of Ser2 of Coro1a. Thus, coronin proteins, and in turn the actin cytoskeleton, exhibit a functional dichotomy as differential regulators of degranulation versus cytokine secretion in MC biology.
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Affiliation(s)
- Niko Föger
- Department of Immunology and Cell Biology, Research Center Borstel, 23845 Borstel, Germany.
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