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Li L, Le C, Liu W, Zhang H, Chen X, Yang J, Fang M, Zhang X. Toll-like receptor 2 deficiency promotes the generation of alloreactive γδT17 cells after cardiac transplantation in mice. Int Immunopharmacol 2024; 130:111768. [PMID: 38432149 DOI: 10.1016/j.intimp.2024.111768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/20/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
Homograft rejection is the main cause of heart transplantation failure. The role of TLR2, a major member of the toll-like receptor (TLR) family, in transplantation rejection is has yet to be elucidated. In this study, we used a mouse model of acute cardiac transplantation rejection to investigate whether the TLR2 signalling pathway can regulate cardiac transplantation rejection by regulating alloreactive IL-17+γδT (γδT17) cells. We found that the expression of TLR2 on the surface of dendritic cells (DCs) and macrophages increased during acute transplantation rejection. In addition, our investigation revealed that γδT17 cells exert a significant influence on acute cardiac transplantation rejection. TLR2 gene knockout resulted in an increase in alloreactive γδT17 cells in the spleen and heart grafts of recipient mice compared with wild-type recipient mice and an increase in the mRNA expression of IL-17, IL-1β, CCR6, and CCL20 in the heart grafts. In an in vitro experiment, a mixed lymphocyte reaction was conducted to assess the impact of TLR2 deficiency on the generation of γδT17 cells, which further substantiated a significant increase compared to that in wild-type controls. Furthermore, the mixed lymphocyte reaction showed that TLR2 regulated the production of γδT17 cells by regulating the ability of DCs to secrete IL-1β. These results suggest that TLR2 signalling is important for regulating the generation of γδT17 cells after cardiac allograft transplantation.
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Affiliation(s)
- Lingyun Li
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, China
| | - Chenyu Le
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - Wenfei Liu
- Chinese PLA 305 Hospital, Beijing 100018, China
| | - Hongchen Zhang
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, China
| | - Xiangyu Chen
- Department of Laboratory Medicine, Weifang Medical University, Weifang, China
| | - Jianfeng Yang
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, China; The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - Min Fang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Xiaofeng Zhang
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, China; The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310006, China; Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310006, China; Hangzhou Institute of Digestive Disease, Hangzhou 310006, China.
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Matsuoka S, Hashimoto D, Kadowaki M, Ohigashi H, Hayase E, Yokoyama E, Hasegawa Y, Tateno T, Chen X, Aoyama K, Oka H, Onozawa M, Takeda K, Akashi K, Teshima T. Myeloid differentiation factor 88 signaling in donor T cells accelerates graft- versus-host disease. Haematologica 2019; 105:226-234. [PMID: 31048358 PMCID: PMC6939524 DOI: 10.3324/haematol.2018.203380] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 04/30/2019] [Indexed: 01/30/2023] Open
Abstract
Myeloid differentiation factor 88 (MyD88) signaling has a crucial role in activation of both innate and adoptive immunity. MyD88 transduces signals via Toll-like receptor and interleukin-1 receptor superfamily to the NFκB pathway and inflammasome by forming a molecular complex with interleukin-1 receptor-associated kinase 4. The MyD88/interleukin-1 receptor-associated kinase 4 pathway plays an important role, not only in innate immunity, but also T-cell immunity; however, its role in donor T cells on the pathophysiology of graft-versus-host disease (GvHD) remains to be elucidated. We addressed this issue by using MyD88-deficient T cells in a mouse model of allogeneic hematopoietic stem cell transplantation (allo-SCT). While MyD88-deficient and wild-type T cells proliferated equivalently after transplantation, MyD88-deficient T cells demonstrated impaired survival and differentiation toward Th1, Tc1, and Th17, and induced less severe GvHD compared to wild-type T cells. Administration of interleukin-1 receptor-associated kinase 4 inhibitor PF-06650833 significantly ameliorated GvHD after allo-SCT. These results thus demonstrate that donor T-cell MyD88/interleukin-1 receptor-associated kinase 4 pathway is a novel therapeutic target against GvHD after allo-SCT.
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Affiliation(s)
- Satomi Matsuoka
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Daigo Hashimoto
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Masanori Kadowaki
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Hiroyuki Ohigashi
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Eiko Hayase
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Emi Yokoyama
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Yuta Hasegawa
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Takahiro Tateno
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Xuanzhong Chen
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Kazutoshi Aoyama
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Hideyo Oka
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Masahiro Onozawa
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
| | - Kiyoshi Takeda
- Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
| | - Koichi Akashi
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Takanori Teshima
- Department of Hematology, Faculty of Medicine, Hokkaido University, Sapporo
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Griesenauer B, Jiang H, Yang J, Zhang J, Ramadan AM, Egbosiuba J, Campa K, Paczesny S. ST2/MyD88 Deficiency Protects Mice against Acute Graft-versus-Host Disease and Spares Regulatory T Cells. THE JOURNAL OF IMMUNOLOGY 2019; 202:3053-3064. [PMID: 30979817 DOI: 10.4049/jimmunol.1800447] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 03/18/2019] [Indexed: 12/11/2022]
Abstract
Acute graft-versus-host disease (aGVHD) hinders the efficacy of allogeneic hematopoietic cell transplantation (HCT). Plasma levels of soluble membrane-bound ST2 (ST2) are elevated in human and murine aGVHD and correlated to type 1 T cells response. ST2 signals through the adapter protein MyD88. The role of MyD88 in T cells during aGVHD has yet to be elucidated. We found that knocking out MyD88 in the donor T cells protected against aGVHD independent of IL-1R and TLR4 signaling in two murine HCT models. This protection was entirely driven by MyD88-/- CD4 T cells. Transplanting donor MyD88-/- conventional T cells (Tcons) with wild-type (WT) or MyD88-/- regulatory T cells (Tregs) lowered aGVHD severity and mortality. Transcriptome analysis of sorted MyD88-/- CD4 T cells from the intestine 10 d post-HCT showed lower levels of Il1rl1 (gene of ST2), Ifng, Csf2, Stat5, Batf, and Jak2 Transplanting donor ST2-/- Tcons with WT or ST2-/- Tregs showed a similar phenotype with what we observed when using donor MyD88-/- Tcons. Decreased ST2 was confirmed at the protein level with less secretion of soluble ST2 and more expression of ST2 compared with WT T cells. Our data suggest that Treg suppression from lack of MyD88 signaling in donor Tcons during alloreactivity uses the ST2 but not the IL-1R or TLR4 pathways, and ST2 represents a potential aGVHD therapeutic target sparing Tregs.
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Affiliation(s)
| | - Hua Jiang
- Indiana University School of Medicine, Indianapolis, IN 46202
| | - Jinfeng Yang
- Indiana University School of Medicine, Indianapolis, IN 46202
| | - Jilu Zhang
- Indiana University School of Medicine, Indianapolis, IN 46202
| | | | - Jane Egbosiuba
- Indiana University School of Medicine, Indianapolis, IN 46202
| | - Khaled Campa
- Indiana University School of Medicine, Indianapolis, IN 46202
| | - Sophie Paczesny
- Indiana University School of Medicine, Indianapolis, IN 46202
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Li L, Chen X, Zhang Y, Li Q, Qi C, Fei X, Zheng F, Gong F, Fang M. Toll-like receptor 2 deficiency promotes the generation of alloreactive Th17 cells after cardiac transplantation in mice. Cell Immunol 2019; 338:9-20. [DOI: 10.1016/j.cellimm.2019.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/11/2019] [Accepted: 02/21/2019] [Indexed: 12/11/2022]
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5
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Kurkjian CJ, Guo H, Montgomery ND, Cheng N, Yuan H, Merrill JR, Sempowski GD, Brickey WJ, Ting JPY. The Toll-Like Receptor 2/6 Agonist, FSL-1 Lipopeptide, Therapeutically Mitigates Acute Radiation Syndrome. Sci Rep 2017; 7:17355. [PMID: 29230065 PMCID: PMC5725477 DOI: 10.1038/s41598-017-17729-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/16/2017] [Indexed: 02/03/2023] Open
Abstract
Risks of radiation exposure from nuclear incidents and cancer radiotherapy are undeniable realities. These dangers urgently compel the development of agents for ameliorating radiation–induced injuries. Biologic pathways mediated by myeloid differentiation primary response gene 88 (MyD88), the common adaptor for toll–like receptor (TLR) and Interleukin–1 receptor signaling, are critical for radioprotection. Treating with agonists prior to radiation enhances survival by activating TLR signaling, whereas radiomitigating TLR–activating therapeutics given after exposure are less defined. We examine the radiomitigation capability of TLR agonists and identify one that is superior for its efficacy and reduced toxic consequences compared to other tested agonists. We demonstrate that the synthetic TLR2/6 ligand Fibroblast–stimulating lipopeptide (FSL–1) substantially prolongs survival in both male and female mice when administered 24 hours after radiation and shows MyD88–dependent function. FSL–1 treatment results in accelerated hematopoiesis in bone marrow, spleen and periphery, and augments systemic levels of hematopoiesis–stimulating factors. The ability of FSL–1 to stimulate hematopoiesis is critical, as hematopoietic dysfunction results from a range of ionizing radiation doses. The efficacy of a single FSL–1 dose for alleviating radiation injury while protecting against adverse effects reveals a viable radiation countermeasures agent.
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Affiliation(s)
- Cathryn J Kurkjian
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Hao Guo
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Nathan D Montgomery
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Ning Cheng
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA.,Oral Biology Curriculum, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Hong Yuan
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Biomedical Imaging Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Joseph R Merrill
- Biomedical Imaging Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - W June Brickey
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Jenny P-Y Ting
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA. .,Department of Genetics, University of North Carolina, Chapel Hill, NC, USA.
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6
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Lee YK, Kang M, Choi EY. TLR/MyD88-mediated Innate Immunity in Intestinal Graft-versus-Host Disease. Immune Netw 2017; 17:144-151. [PMID: 28680375 PMCID: PMC5484644 DOI: 10.4110/in.2017.17.3.144] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/07/2017] [Accepted: 04/13/2017] [Indexed: 12/13/2022] Open
Abstract
Graft-versus-host disease (GHVD) is a severe complication after allogeneic hematopoietic stem cell transplantation. The degree of inflammation in the gastrointestinal tract, a major GVHD target organ, correlates with the disease severity. Intestinal inflammation is initiated by epithelial damage caused by pre-conditioning irradiation. In combination with damages caused by donor-derived T cells, such damage disrupts the epithelial barrier and exposes innate immune cells to pathogenic and commensal intestinal bacteria, which release ligands for Toll-like receptors (TLRs). Dysbiosis of intestinal microbiota and signaling through the TLR/myeloid differentiation primary response gene 88 (MyD88) pathways contribute to the development of intestinal GVHD. Understanding the changes in the microbial flora and the roles of TLR signaling in intestinal GVHD will facilitate the development of preventative and therapeutic strategies.
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Affiliation(s)
- Young-Kwan Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Myungsoo Kang
- BioMembrane Plasticity Research Center (MPRC), Seoul National University College of Medicine, Seoul 03080, Korea
| | - Eun Young Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea.,BioMembrane Plasticity Research Center (MPRC), Seoul National University College of Medicine, Seoul 03080, Korea
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Toubai T, Mathewson ND, Magenau J, Reddy P. Danger Signals and Graft-versus-host Disease: Current Understanding and Future Perspectives. Front Immunol 2016; 7:539. [PMID: 27965667 PMCID: PMC5126092 DOI: 10.3389/fimmu.2016.00539] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 11/15/2016] [Indexed: 12/22/2022] Open
Abstract
Graft-versus-host response after allogeneic hematopoietic stem cell transplantation (allo-HCT) represents one of the most intense inflammatory responses observed in humans. Host conditioning facilitates engraftment of donor cells, but the tissue injury caused from it primes the critical first steps in the development of acute graft-versus-host disease (GVHD). Tissue injuries release pro-inflammatory cytokines (such as TNF-α, IL-1β, and IL-6) through widespread stimulation of pattern recognition receptors (PRRs) by the release of danger stimuli, such as damage-associated molecular patterns (DAMPs) and pathogen-associated molecular patterns (PAMPs). DAMPs and PAMPs function as potent stimulators for host and donor-derived antigen presenting cells (APCs) that in turn activate and amplify the responses of alloreactive donor T cells. Emerging data also point towards a role for suppression of DAMP induced inflammation by the APCs and donor T cells in mitigating GVHD severity. In this review, we summarize the current understanding on the role of danger stimuli, such as the DAMPs and PAMPs, in GVHD.
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Affiliation(s)
- Tomomi Toubai
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center , Ann Arbor, MI , USA
| | - Nathan D Mathewson
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute , Boston, MA , USA
| | - John Magenau
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center , Ann Arbor, MI , USA
| | - Pavan Reddy
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center , Ann Arbor, MI , USA
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