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Hasgur S, Fan R, Zwick DB, Fairchild RL, Valujskikh A. B cell-derived IL-1β and IL-6 drive T cell reconstitution following lymphoablation. Am J Transplant 2020; 20:2740-2754. [PMID: 32342598 PMCID: PMC7956246 DOI: 10.1111/ajt.15960] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/26/2020] [Accepted: 04/15/2020] [Indexed: 01/25/2023]
Abstract
Understanding the mechanisms of T cell homeostatic expansion is crucial for clinical applications of lymphoablative therapies. We previously established that T cell recovery in mouse heart allograft recipients treated with anti-thymocyte globulin (mATG) critically depends on B cells and is mediated by B cell-derived soluble factors. B cell production of interleukin (IL)-1β and IL-6 is markedly upregulated after heart allotransplantation and lymphoablation. Neutralizing IL-1β or IL-6 with mAb or the use of recipients lacking mature IL-1β, IL-6, IL-1R, MyD88, or IL-6R impair CD4+ and CD8+ T cell recovery and significantly enhance the graft-prolonging efficacy of lymphoablation. Adoptive co-transfer experiments demonstrate a direct effect of IL-6 but not IL-1β on T lymphocytes. Furthermore, B cells incapable of IL-1β or IL-6 production have diminished capacity to mediate T cell reconstitution and initiate heart allograft rejection upon adoptive transfer into mATG treated B cell deficient recipients. These findings reveal the essential role of B cell-derived IL-1β and IL-6 during homeostatic T cell expansion in a clinically relevant model of lymphoablation.
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Affiliation(s)
- Suheyla Hasgur
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Ran Fan
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Daniel B. Zwick
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Robert L. Fairchild
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Anna Valujskikh
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
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Hartigan CR, Sun H, Ford ML. Memory T‐cell exhaustion and tolerance in transplantation. Immunol Rev 2019; 292:225-242. [DOI: 10.1111/imr.12824] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 12/16/2022]
Affiliation(s)
| | - He Sun
- Emory Transplant Center and Department of Surgery Emory University Atlanta GA USA
- Department of Hepatobiliary Surgery and Transplantation The First Hospital of China Medical University Shenyang China
| | - Mandy L. Ford
- Emory Transplant Center and Department of Surgery Emory University Atlanta GA USA
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Godwin MS, Reeder KM, Garth JM, Blackburn JP, Jones M, Yu Z, Matalon S, Hastie AT, Meyers DA, Steele C. IL-1RA regulates immunopathogenesis during fungal-associated allergic airway inflammation. JCI Insight 2019; 4:129055. [PMID: 31550242 DOI: 10.1172/jci.insight.129055] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 09/19/2019] [Indexed: 12/12/2022] Open
Abstract
Severe asthma with fungal sensitization (SAFS) defines a subset of human asthmatics with allergy to 1 or more fungal species and difficult-to-control asthma. We have previously reported that human asthmatics sensitized to fungi have worse lung function and a higher degree of atopy, which was associated with higher IL-1 receptor antagonist (IL-1RA) levels in bronchoalveolar lavage fluid. IL-1RA further demonstrated a significant negative association with bronchial hyperresponsiveness to methacholine. Here, we show that IL-1α and IL-1β are elevated in both bronchoalveolar lavage fluid and sputum from human asthmatics sensitized to fungi, implicating an association with IL-1α, IL-1β, or IL-1RA in fungal asthma severity. In an experimental model of fungal-associated allergic airway inflammation, we demonstrate that IL-1R1 signaling promotes type 1 (IFN-γ, CXCL9, CXCL10) and type 17 (IL-17A, IL-22) responses that were associated with neutrophilic inflammation and increased airway hyperreactivity. Each of these were exacerbated in the absence of IL-1RA. Administration of human recombinant IL-1RA (Kineret/anakinra) during fungal-associated allergic airway inflammation improved airway hyperreactivity and lowered type 1 and type 17 responses. Taken together, these data suggest that IL-1R1 signaling contributes to fungal asthma severity via immunopathogenic type 1 and type 17 responses and can be targeted for improving allergic asthma severity.
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Affiliation(s)
- Matthew S Godwin
- Department of Medicine, University of Alabama at Birmingham (UAB), Birmingham, Alabama, USA
| | - Kristen M Reeder
- Department of Medicine, University of Alabama at Birmingham (UAB), Birmingham, Alabama, USA
| | - Jaleesa M Garth
- Department of Medicine, University of Alabama at Birmingham (UAB), Birmingham, Alabama, USA
| | - Jonathan P Blackburn
- Department of Medicine, University of Alabama at Birmingham (UAB), Birmingham, Alabama, USA
| | - MaryJane Jones
- Department of Microbiology and Immunology, Tulane University, New Orleans, Louisiana, USA
| | - Zhihong Yu
- Department of Anesthesiology, UAB, Birmingham, Alabama, USA
| | - Sadis Matalon
- Department of Anesthesiology, UAB, Birmingham, Alabama, USA
| | - Annette T Hastie
- Department of Medicine, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Deborah A Meyers
- Department of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Chad Steele
- Department of Microbiology and Immunology, Tulane University, New Orleans, Louisiana, USA
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Hypothermic Oxygenated Perfusion: A Simple and Effective Method to Modulate the Immune Response in Kidney Transplantation. Transplantation 2019; 103:e128-e136. [DOI: 10.1097/tp.0000000000002634] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Weigt SS, Palchevskiy V, Belperio JA. Inflammasomes and IL-1 biology in the pathogenesis of allograft dysfunction. J Clin Invest 2017; 127:2022-2029. [PMID: 28569730 DOI: 10.1172/jci93537] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Inflammasomes are high-molecular-weight cytosolic complexes that mediate the activation of caspases. There are many inflammasomes, and each is influenced by a unique pattern-recognition receptor response. Two signals are typically involved in the inflammasome pathways. Signal one involves recognition of pathogen-associated molecular patterns (PAMPs), such as LPS or other colonizing/invading microbes, that interact with TLRs, which induce the downstream production of pro-IL-1β. This is followed by signal two, which involves recognition of PAMPs or damage-associated molecular patterns (DAMPs), such as uric acid or ATP, via NLRP3, which leads to caspase-1-dependent cleavage of pro-IL-1β to active IL-1β and pyroptosis. Ultimately, these two signals cause the release of multiple proinflammatory cytokines. Both PAMPs and DAMPs can be liberated by early insults to the allograft, including ischemia/reperfusion injury, infections, and rejection. The consequence of inflammasome activation and IL-1 expression is the upregulation of adhesion molecules and chemokines, which leads to allograft neutrophil sequestration, mononuclear phagocyte recruitment, and T cell activation, all of which are key steps in the continuum from allograft insult to chronic allograft dysfunction.
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