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Rubino G, Yörük E. Immunosenescence, immunotolerance and rejection: clinical aspects in solid organ transplantation. Transpl Immunol 2024; 86:102068. [PMID: 38844001 DOI: 10.1016/j.trim.2024.102068] [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: 11/07/2023] [Revised: 05/27/2024] [Accepted: 06/01/2024] [Indexed: 07/21/2024]
Abstract
As a consequence of increased lifespan and rising number of elderly individuals developing end-stage organ disease, the higher demand for organs along with a growing availability for organs from older donors pose new challenges for transplantation. During aging, dynamic adaptations in the functionality and structure of the biological systems occur. Consistently, immunosenescence (IS) accounts for polydysfunctions within the lymphocyte subsets, and the onset of a basal but persistent systemic inflammation characterized by elevated levels of pro-inflammatory mediators. There is an emerging consensus about a causative link between such hallmarks and increased susceptibility to morbidities and mortality, however the role of IS in solid organ transplantation (SOT) remains loosely addressed. Dissecting the immune-architecture of immunologically-privileged sites may prompt novel insights to extend allograft survival. A deeper comprehension of IS in SOT might unveil key standpoints for the clinical management of transplanted patients.
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Affiliation(s)
- Graziella Rubino
- University Hospital Tübingen, Department of Tropical Medicine, Wilhelmstraße 27, 72074 Tübingen, Germany; Institute for Transfusion Medicine, University Ulm and Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, 89081 Ulm, Germany.
| | - Efdal Yörük
- Berit Klinik, Gastrointestinal Center, Florastrasse 1, 9403 Goldach, Switzerland; University Hospital Tübingen, Department of Ophthalmology, Elfriede-Alhorn-Straße 7, 72076 Tübingen, Germany
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2
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Gorbacheva V, Fan R, Miyairi S, Fairchild RL, Baldwin WM, Valujskikh A. Autoantibodies against DNA topoisomerase I promote renal allograft rejection by increasing alloreactive T cell responses. Am J Transplant 2023; 23:1307-1318. [PMID: 37084848 PMCID: PMC10524310 DOI: 10.1016/j.ajt.2023.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 03/29/2023] [Indexed: 04/23/2023]
Abstract
Antibodies reactive to self-antigens are an important component of posttransplant immune responses. The generation requirements and functions of autoantibodies, as well as the mechanisms of their influence on alloimmune responses, still remain to be determined. Our study investigated the contribution of autoimmunity during rejection of renal allografts. We have previously characterized a mouse model in which the acute rejection of a life-supporting kidney allograft is mediated by antibodies. At rejection, recipient sera screening against >4000 potential autoantigens revealed DNA topoisomerase I peptide 205-219 (TI-I205-219) as the most prominent epitope. Subsequent analysis showed TI-I205-219-reactive autoantibodies are induced in nonsensitized recipients of major histocompatibility complex-mismatched kidney allografts in a T cell-dependent manner. Immunization with TI-I205-219 broke self-tolerance, elicited TI-I205-219 immunoglobin G autoantibodies, and resulted in acute rejection of allogeneic but not syngeneic renal transplants. The graft loss was associated with increased priming of donor-reactive T cells but not with donor-specific alloantibodies elevation. Similarly, passive transfer of anti-TI-I205-219 sera following transplantation increased donor-reactive T cell activation with minimal effects on donor-specific alloantibody levels. The results identify DNA topoisomerase I as a novel self-antigen in transplant settings and demonstrate that autoantibodies enhance activation of donor-reactive T cells following renal transplantation.
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Affiliation(s)
- Victoria Gorbacheva
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ran Fan
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Satoshi Miyairi
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Robert L Fairchild
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - William M Baldwin
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Anna Valujskikh
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA.
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3
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Wang H, Li C, Xiong Z, Li T. Luteolin attenuates acute liver allograft rejection in rats by inhibiting T cell proliferation and regulating T cell subsets. Int Immunopharmacol 2023; 121:110407. [PMID: 37290328 DOI: 10.1016/j.intimp.2023.110407] [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: 01/26/2023] [Revised: 05/28/2023] [Accepted: 05/28/2023] [Indexed: 06/10/2023]
Abstract
Allograft rejection continues to be a significant cause of morbidity and graft failure for liver transplant recipients. Existing immunosuppressive regimens have many drawbacks, thus safe and effective long-term immunosuppressive regimens are still required. Luteolin (LUT), a natural component found in many plants, has a variety of biological and pharmacological effects and shows good anti-inflammatory activity in inflammatory and autoimmune diseases. Nevertheless, it remains unclear how it affects acute organ rejection after allogeneic transplantation. In this study, a rat liver transplantation model was constructed to investigate the effect of LUT on acute rejection of organ allografts. We found that LUT significantly protected the structure and function of liver grafts, prolonged recipient rat survival, ameliorated T cell infiltration, and downregulated proinflammatory cytokines. Moreover, LUT inhibited the proliferation of CD4+ T cells and Th cell differentiation but increased the proportion of Tregs, which is the key to its immunosuppressive effect. In vitro, LUT also significantly inhibited CD4+ T cell proliferation and Th1 differentiation. There may be important implications for improving immunosuppressive regimens for organ transplantation as a result of this discovery.
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Affiliation(s)
- Hao Wang
- Department of Liver Transplantation, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China; The First Central Clinical School, Tianjin Medical University, Tianjin 300190, China
| | - Chenxuan Li
- Department of Liver Transplantation, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China; Transplant Medical Research Center, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Zhiwei Xiong
- Department of Liver Transplantation, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China; Transplant Medical Research Center, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Ting Li
- Department of Liver Transplantation, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China; Transplant Medical Research Center, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan 410011, China.
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Inhibiting NFAT5 With KRN2 Mitigates Acute Allograft Rejection in a Murine Heart Transplantation Model. J Cardiovasc Pharmacol 2023; 81:212-220. [PMID: 36651978 PMCID: PMC9988219 DOI: 10.1097/fjc.0000000000001392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/08/2022] [Indexed: 01/19/2023]
Abstract
ABSTRACT Despite advancements in immunosuppressive therapy, acute allograft rejection remains an important challenge for heart transplantation patients. Nuclear factor of activated T-cells 5 (NFAT5), a member of the family of Rel homology domain-containing factors that plays an important role in regulating immune responses of T lymphocytes, may be closely associated with cardiac rejection. KRN2, as a specific inhibitor of NFAT5, is injected intraperitoneally daily starting from day 0 after murine heart transplantation. When compared with saline treatment, KRN2 treatment can improve allograft survival. Histologic examination revealed that the KRN2 treatment group experienced less-severe rejection, and enzyme-linked immunosorbent assay revealed lower levels of inflammatory cytokines in circulating serum. The proportion and number of T-cell subpopulations in the spleens were analyzed by flow cytometry. We found that KRN2 treatment reduced the proportions of CD4 + IFN-γ + , CD4 + IL-17A + , and CD4 + IL-4 + Th cells, whereas increasing CD4 + Foxp3 + Treg cells compared with the control group. These findings suggest that KRN2 attenuates acute allograft rejection by regulating CD4 + T lymphocyte responses. NFAT5 could be a promising therapeutic target for preventing acute allograft rejection.
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Dhital R, Anand S, Graber B, Zeng Q, Velazquez VM, Boddeda SR, Fitch JR, Minz RW, Minz M, Sharma A, Cianciolo R, Shimamura M. Murine cytomegalovirus promotes renal allograft inflammation via Th1/17 cells and IL-17A. Am J Transplant 2022; 22:2306-2322. [PMID: 35671112 PMCID: PMC9547825 DOI: 10.1111/ajt.17116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 05/24/2022] [Accepted: 06/02/2022] [Indexed: 01/25/2023]
Abstract
Human cytomegalovirus (HCMV) infection is associated with renal allograft failure. Allograft damage in animal models is accelerated by CMV-induced T helper 17 (Th17) cell infiltrates. However, the mechanisms whereby CMV promotes Th17 cell-mediated pathological organ inflammation are uncharacterized. Here we demonstrate that murine CMV (MCMV)-induced intragraft Th17 cells have a Th1/17 phenotype co-expressing IFN-γ and/or TNF-α, but only a minority of these cells are MCMV specific. Instead, MCMV promotes intragraft expression of CCL20 and CXCL10, which are associated with recruitment of CCR6+ CXCR3+ Th17 cells. MCMV also enhances Th17 cell infiltrates after ischemia-reperfusion injury, independent of allogeneic responses. Pharmacologic inhibition of the Th17 cell signature cytokine, IL-17A, ameliorates MCMV-associated allograft damage without increasing intragraft viral loads or reducing MCMV-specific Th1 cell infiltrates. Clinically, HCMV DNAemia is associated with higher serum IL-17A among renal transplant patients with acute rejection, linking HCMV reactivation with Th17 cell cytokine expression. In summary, CMV promotes allograft damage via cytokine-mediated Th1/17 cell recruitment, which may be pharmacologically targeted to mitigate graft injury while preserving antiviral T cell immunity.
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Affiliation(s)
- Ravi Dhital
- Center for Vaccines and Immunity, The Abigail Wexner Research InstituteNationwide Children's HospitalColumbusOhioUSA
| | - Shashi Anand
- Department of ImmunopathologyPost Graduate Institute of Medical Education and Research (PGIMER)ChandigarhIndia
| | - Brianna Graber
- Center for Vaccines and Immunity, The Abigail Wexner Research InstituteNationwide Children's HospitalColumbusOhioUSA
| | - Qiang Zeng
- Center for Regenerative MedicineThe Abigail Research Institute, Nationwide Children's HospitalColumbusOhioUSA
| | - Victoria M. Velazquez
- Center for Vaccines and Immunity, The Abigail Wexner Research InstituteNationwide Children's HospitalColumbusOhioUSA
| | - Srinivasa R. Boddeda
- Center for Vaccines and Immunity, The Abigail Wexner Research InstituteNationwide Children's HospitalColumbusOhioUSA
| | - James R. Fitch
- The Steve and Cindy Rasmussen Institute for Genomic MedicineNationwide Children's HospitalColumbusOhioUSA
| | - Ranjana W. Minz
- Department of ImmunopathologyPost Graduate Institute of Medical Education and Research (PGIMER)ChandigarhIndia
| | - Mukut Minz
- Department of Renal Transplant SurgeryPost Graduate Institute of Medical Education and Research (PGIMER)ChandigarhIndia
| | - Ashish Sharma
- Department of Renal Transplant SurgeryPost Graduate Institute of Medical Education and Research (PGIMER)ChandigarhIndia
| | - Rachel Cianciolo
- Department of Veterinary Biosciences, College of Veterinary MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Masako Shimamura
- Center for Vaccines and Immunity, The Abigail Wexner Research InstituteNationwide Children's HospitalColumbusOhioUSA,Division of Pediatric Infectious Diseases, Department of Pediatrics, College of MedicineThe Ohio State UniversityColumbusOhioUSA
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Liu R, Yi R, Chen X, Yi G, Fu M. Lentivirus-mediated PD-L1 overexpression in bone marrow-derived dendritic cells induces immune tolerance in a rat keratoplasty model. Transpl Immunol 2022; 74:101654. [PMID: 35777615 DOI: 10.1016/j.trim.2022.101654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/31/2022] [Accepted: 06/22/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE The side effects of immune suppressants on immune rejection have become increasingly apparent after keratoplasty. To find out new alternative immunotherapy strategies, we studied the role of programmed death-1 (PD-1) and its ligand (PD-L1) co-stimulatory pathway in inducing immune tolerance of rat keratoplasty. METHODS The PD-L1 protein was constitutively overexpressed via lentiviral transduction in bone marrow-derived dendritic cells (BMDCs) from rats, then infused via the tail vein into rats before undergoing keratoplasty. Western blot analysis of PD-L1 protein confirmed the effectiveness of lentivirus-mediated. The phenotype of immature BMDC was confirmed by flow cytometry analysis with CD80, CD86, CD11c and MHC-II antibodies. To investigate the mechanism of the immune tolerance induced by BMDCs transfusion, PD-L1, IFN-γ and IL-17 in serum and cell culture supernatant were assessed by ELISA and qPCR. RESULTS After LPS stimulation, immature dendritic cells with over-expression of PD-L1 still showed high expression of PD-L1(p < 0.001), and low expression of IL-17 and IFN-γ (p < 0.001), which reduced neovascularization (p < 0.05), and prolonged the survival after corneal implants. CONCLUSION Immature DC cells with overexpression of PD-L1 have low ability to activate T cells,which is a potential treatment for avoiding graft rejection by promoting natural immunosuppression. This cellular treatment is expected to reduce the use of immune suppressants and the occurrence of side effects.
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Affiliation(s)
- Rubing Liu
- Zhujiang Hospital, Southern Medical University, Guangzhou, China; The Second Clinical School, Southern Medical University, Guangzhou, China
| | - Ruiwen Yi
- Department of Ophthalmology, Maoming People's Hospital, Maoming, China
| | - Xinglu Chen
- Clinical Laboratory, 1st Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Guoguo Yi
- Department of Ophthalmology, The Sixth Affiliated Hospital of Sun Yat Sen University, Guangzhou, China.
| | - Min Fu
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
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Tian Q, Zhang Z, Tan L, Yang F, Xu Y, Guo Y, Wei D, Wu C, Cao P, Ji J, Wang W, Xie X, Zhao Y. Skin and heart allograft rejection solely by long-lived alloreactive T RM cells in skin of severe combined immunodeficient mice. SCIENCE ADVANCES 2022; 8:eabk0270. [PMID: 35080985 PMCID: PMC8791614 DOI: 10.1126/sciadv.abk0270] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Whether induced tissue-resident memory T (TRM) cells in nonlymphoid organs alone can mediate allograft rejection is unknown. By grafting alloskin or heart into severe combined immunodeficient or Rag2KO mice in which a piece of induced CD4+ and/or CD8+ TRM cell-containing MHC-matched or syngeneic skin was transplanted in advance, we addressed this issue. The induced CD4+ TRM cells in the skin alone acutely rejected alloskin or heart grafts. RNA-seq analysis showed that induced CD4+ TRM cells in skin favorably differentiated into TH17-like polarization during the secondary immune response. Inhibition of the key TH17 signaling molecule RORγt attenuated TRM cell-mediated graft rejection. Thus, we offer a unique mouse model to specifically study TRM cell-mediated allograft rejection without the involvement of lymphocytes in lymphoid organs and tissues. Our study provides strong evidence supporting the hypothesis that long-lived alloreactive TRM cells resident in other organs/tissues substantially contribute to organ allograft rejection.
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Affiliation(s)
- Qianchuan Tian
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhaoqi Zhang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Liang Tan
- Department of Urological Organ Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Fan Yang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yanan Xu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yinan Guo
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Dong Wei
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Changhong Wu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Peng Cao
- Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China
| | - Jiawei Ji
- Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China
| | - Wei Wang
- Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China
- Corresponding author. (Y.Z.); (X.X.); (W.W.)
| | - Xubiao Xie
- Department of Urological Organ Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, China
- Corresponding author. (Y.Z.); (X.X.); (W.W.)
| | - Yong Zhao
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- Corresponding author. (Y.Z.); (X.X.); (W.W.)
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8
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Donor-specific ELISPOT assay for predicting acute rejection and allograft function after kidney transplantation: A systematic review and meta-analysis. Clin Biochem 2021; 94:1-11. [PMID: 33882287 DOI: 10.1016/j.clinbiochem.2021.04.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/05/2021] [Accepted: 04/08/2021] [Indexed: 12/29/2022]
Abstract
Acute rejection remains an important problem after kidney transplantation. Enzyme-linked immunosorbent spot (ELISPOT) assay has been investigated extensively and has shown promising results as a predictor of allograft rejection. The objective of this study was to systematically review and analyze the predictive value of the donor-specific ELISPOT assay to identify recipients at risk for acute rejection. Electronic databases were searched for studies reporting donor-specific ELISPOT and kidney transplantation outcomes. Odds ratio (OR) for acute rejection was calculated, along with standardized mean difference (SMD) of cytokine producing-cells between recipients with and without acute rejection. Pooled estimates were calculated using random-effect models. The positive ELISPOT cutoff frequencies were extracted from each study. From 665 articles found, 32 studies were included in the meta-analysis. IFN-γ was the most investigated cytokine (30 out of 32 studies). Patients with positive pre-transplantation donor-reactive IFN-γ ELISPOT had an OR of 3.3 for acute rejection (95%-CI 2.1 to 5.1), and OR of 6.8 (95%-CI 2.5 to 18.9) for post-transplantation ELISPOT. Recipients with rejection had significantly higher frequencies of pre- and post-transplantation cytokine producing-cells (SMD 0.47, 95%-CI 0.07 to 0.87 and SMD 3.68, 95%-CI 1.04 to 6.32, respectively). Pre-transplantation ELISPOT had a positive predictive value of 43% and a negative predictive value of 81% for acute rejection. A positive ELISPOT result was associated with a lower estimated glomerular filtration rate (SMD -0.59, 95%-CI -0.83 to -0.34). In conclusion, patients with a high frequency of donor-reactive IFN-γ ELISPOT are at higher risk for acute rejection. The donor-specific IFN-γ ELISPOT assay can serve as an immune-monitoring tool in kidney transplantation.
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Ladurner A, Schwarz PF, Dirsch VM. Natural products as modulators of retinoic acid receptor-related orphan receptors (RORs). Nat Prod Rep 2021; 38:757-781. [PMID: 33118578 DOI: 10.1039/d0np00047g] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Covering: 1994 to 2020 Retinoic acid receptor-related orphan receptors (RORs) belong to a subfamily of the nuclear receptor superfamily and possess prominent roles in circadian rhythm, metabolism, inflammation, and cancer. They have been subject of research for over two decades and represent attractive but challenging drug targets. Natural products were among the first identified ligands of RORs and continue to be of interest to this day. This review focuses on ligands and indirect modulators of RORs from natural sources and explores their roles in a therapeutic context.
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Affiliation(s)
- Angela Ladurner
- Department of Pharmacognosy, University of Vienna, Vienna, Austria.
| | - Patrik F Schwarz
- Department of Pharmacognosy, University of Vienna, Vienna, Austria.
| | - Verena M Dirsch
- Department of Pharmacognosy, University of Vienna, Vienna, Austria.
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The Role of IL-33 in Experimental Heart Transplantation. Cardiol Res Pract 2020; 2020:6108362. [PMID: 32257426 PMCID: PMC7106886 DOI: 10.1155/2020/6108362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/24/2019] [Accepted: 12/31/2019] [Indexed: 01/17/2023] Open
Abstract
Interleukin-33 (IL-33) is a member of the IL-1 family of proteins that are produced by a variety of cell types in multiple tissues. Under conditions of cell injury or death, IL-33 is passively released from the nucleus and acts as an "alarmin" upon binding to its specific receptor ST2, which leads to proinflammatory or anti-inflammatory effects depending on the pathological environment. To date, numerous studies have investigated the roles of IL-33 in human and murine models of diseases of the nervous system, digestive system, pulmonary system, as well as other organs and systems, including solid organ transplantation. With graft rejection and ischemia-reperfusion injury being the most common causes of grafted organ failure or dysfunction, researchers have begun to investigate the role of IL-33 in the immune-related mechanisms of graft tolerance and rejection using heart transplantation models. In the present review, we summarize the identified roles of IL-33 as well as the corresponding mechanisms by which IL-33 acts within the progression of graft rejection after heart transplantation in animal models.
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Gorshkova EA, Zvartsev RV, Drutskaya MS, Gubernatorova EO. Humanized Mouse Models as a Tool to Study Proinflammatory Cytokine Overexpression. Mol Biol 2019. [DOI: 10.1134/s0026893319050078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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12
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Simon T, Li L, Wagner C, Zhang T, Saxena V, Brinkman CC, Tostanoski LH, Ostrand-Rosenberg S, Jewell C, Shea-Donohue T, Hippen K, Blazar B, Abdi R, Bromberg JS. Differential Regulation of T-cell Immunity and Tolerance by Stromal Laminin Expressed in the Lymph Node. Transplantation 2019; 103:2075-2089. [PMID: 31343575 PMCID: PMC6768765 DOI: 10.1097/tp.0000000000002774] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Stromal laminins α4 and α5 are differentially regulated in transplant tolerance and immunity, respectively, resulting in altered T-cell trafficking. We hypothesized that laminins directly regulated T-cell activation and polarization. METHODS Human and mouse CD4 T cells were activated in Th1, Th2, Th17, or regulatory T cell (Treg) environments with/without laminin α4 and/or α5. Laminin α5 receptors were blocked with anti-α6 integrin or anti-α-dystroglycan (αDG) monoclonal antibodies, and T-cell polarization was determined. T-cell receptor transgenic TEa CD4 cells that recognized donor alloantigen were transferred into C57BL/6 mice that received alloantigen or cardiac allografts. Laminin receptors were blocked, and TEa T-cell migration and differentiation were assessed. Laminin expression was measured in several models of immunity and tolerance. RESULTS In diverse models, laminins α4 and α5 were differentially regulated. Immunity was associated with decreased laminin α4:α5 ratio, while tolerance was associated with an increased ratio. Laminin α4 inhibited CD4+ T-cell proliferation and Th1, Th2, and Th17 polarization but favored Treg induction. Laminin α5 favored T-cell activation and Th1, Th2, and Th17 polarization and inhibited Treg. Laminin α5 was recognized by T cell integrin α6 and is important for activation and inhibition of Treg. Laminin α5 was also recognized by T cell α-DG and required for Th17 differentiation. Anti-α6 integrin or anti-DG prolonged allograft survival. CONCLUSIONS Laminins α4 and α5 are coinhibitory and costimulatory ligands for human and mouse CD4 T cells, respectively. Laminins and their receptors modulate immune responses by acting as one of the molecular switches for immunity or suppression.
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Affiliation(s)
- Thomas Simon
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Lushen Li
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Chelsea Wagner
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Tianshu Zhang
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Vikas Saxena
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - C. Colin Brinkman
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Lisa H. Tostanoski
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Suzanne Ostrand-Rosenberg
- Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, Maryland, USA
| | - Chris Jewell
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Terez Shea-Donohue
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Keli Hippen
- Division of Blood and Marrow Transplantation, Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
- The Center for Immunology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | - Bruce Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
- The Center for Immunology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | - Reza Abdi
- Transplantation Research Center and Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan S. Bromberg
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Sun B, Gao J, Shi W, Guo Y, Fan J, Zhang J, Li X, Liu G. The interleukin-17 G-197A polymorphism is associated with cyclosporine metabolism and transplant rejection in liver transplant recipients. Pharmacogenomics 2019; 20:447-456. [PMID: 30799725 DOI: 10.2217/pgs-2018-0198] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aim: This study aimed to investigate the effect of and mechanism involved in the IL-17 SNP on cyclosporine metabolism and outcomes of liver transplantation (LT). Materials & methods: The IL-17 genotype, IL-17 expression, postoperative outcome and cyclosporine concentration were reviewed in 106 LT recipients. The functional relevance of rs2275913 was evaluated by luciferase assay. Furthermore, L02 cells were treated with IL-17 recombinant protein or/and pregnane X receptor (PXR) knockdown lentiviruses, then the expression of PXR, CYP3A4, CYP3A5 and IL-17R were detected by PCR and western blotting. Result: The significant distribution difference at IL-17 locus G-197A was confirmed between patients with and without rejection (p = 0.035). Patients with acute rejection showed higher IL-17 level than those without rejection. Cyclosporine concentration was associated with the different IL-17 genotype (p < 0.05). Luciferase assay revealed that 197G genotype had higher luciferase activity than that in 197A genotype (p = 0.009). Furthermore, IL-17 recombinant protein remarkably promoted the expressions of PXR, CYP3A4 and CYP3A5 (p < 0.01), but not IL-17R. PXR knockdown significantly inhibited the mRNA levels of CYP3A4 and CYP3A5 but not IL-17R (p < 0.01), while IL-17 recombinant protein had no influence on the expressions of CYP3A4 and CYP3A5 when PXR was downregulated. Conclusion: This study revealed the possible association of IL-17 G-197A with cyclosporine metabolism and transplant rejection after LT, which might be partly related to the upregulations of CYP3A4/5 dependent on PXR.
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Affiliation(s)
- Bo Sun
- Department of Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.,Shanghai Center for Drug Evaluation and Inspection, Shanghai, PR China
| | - Junwei Gao
- Department of Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Weifeng Shi
- Department of Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Yankun Guo
- Department of Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Junwei Fan
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jigang Zhang
- Department of Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Xiaoyu Li
- Department of pharmacy, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Gaolin Liu
- Department of Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
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14
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Li M, Boddeda S, Chen B, Zeng Q, Schoeb TR, Velazquez VM, Shimamura M. NK cell and Th17 responses are differentially induced in murine cytomegalovirus infected renal allografts and vary according to recipient virus dose and strain. Am J Transplant 2018; 18:2647-2662. [PMID: 29659179 PMCID: PMC6191363 DOI: 10.1111/ajt.14868] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 01/25/2023]
Abstract
Human cytomegalovirus (HCMV) donor positive (D+) serostatus with acute rejection is associated with renal allograft loss, but the impact of recipient positive (R+) serostatus is unclear. In an allogeneic renal transplant model, antiviral natural killer (NK) and CD8+ T cell memory responses in murine CMV (MCMV) D+/R+ transplants were compared to D-/R- and D+/R- transplants, with recipient infection varied by MCMV dose and strain. D+/R- transplants had high primary antiviral cytolytic (interferon-γ+) and cytotoxic (granzyme B+) NK responses, whereas NK memory responses were lower in D+/R+ recipients receiving a high primary MCMV dose. Despite MCMV immunity, D+/R+ recipients receiving a low MCMV dose showed primary-like high cytolytic and cytotoxic NK responses. D+/R+ transplants infected with different D/R strains had low cytolytic NK responses but high cytotoxic NK responses. NK memory also induced a novel TNF-α+ NK response among high-dose virus recipients. MCMV+ transplants had greater Th17 responses than MCMV-uninfected transplants and Th17 inhibition ameliorated graft injury. All MCMV+ recipients had similar CD8+ T cell responses. In sum, NK and Th17 responses, but not CD8+ T cells, varied according to conditions of primary recipient infection. This variability could contribute to variable graft outcomes in HCMV D+/R+ renal transplantation.
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Affiliation(s)
- Mao Li
- Division of Infectious Diseases, Department of Pediatrics, University of Alabama at Birmingham, Birmingham AL
| | - Srinivasa Boddeda
- Center for Vaccines and Immunity, The Research Institute at Nationwide Children’s Hospital, Columbus OH
| | - Bo Chen
- Department of Pathology, University of Alabama at Birmingham, Birmingham AL
| | - Qiang Zeng
- Center for Cardiovascular Research, The Research Institute at Nationwide Children’s Hospital, Columbus OH
| | - Trenton R. Schoeb
- Department of Genetics, University of Alabama at Birmingham, Birmingham AL
| | - Victoria M. Velazquez
- Center for Vaccines and Immunity, The Research Institute at Nationwide Children’s Hospital, Columbus OH
| | - Masako Shimamura
- Center for Vaccines and Immunity, The Research Institute at Nationwide Children’s Hospital, Columbus OH,Division of Infectious Diseases, Department of Pediatrics, The Ohio State University, Columbus OH,Corresponding author:
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15
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On the role of the immunoproteasome in transplant rejection. Immunogenetics 2018; 71:263-271. [PMID: 30220008 DOI: 10.1007/s00251-018-1084-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022]
Abstract
The immunoproteasome is expressed in cells of hematopoietic origin and is induced during inflammation by IFN-γ. Targeting the immunoproteasome with selective inhibitors has been shown to be therapeutically effective in pre-clinical models for autoimmune diseases, colitis-associated cancer formation, and transplantation. Immunoproteasome inhibition prevents activation and proliferation of lymphocytes, lowers MHC class I cell surface expression, reduces the expression of cytokines of activated immune cells, and curtails T helper 1 and 17 cell differentiation. This might explain the in vivo efficacy of immunoproteasome inhibition in different pre-clinical disease models for autoimmunity, cancer, and transplantation. In this review, we summarize the effect of immunoproteasome inhibition in different animal models for transplantation.
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16
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Yang C, Chen X, Wei Z, Xiao J, Chen W, Shang Y, Liu J. Targeting the class IA PI3K isoforms p110α/δ attenuates heart allograft rejection in mice by suppressing the CD4 + T lymphocyte response. Am J Transl Res 2018; 10:1387-1399. [PMID: 29887953 PMCID: PMC5992545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
Acute rejection is the most important factor causing allograft loss, which remains a challenge for patients undergoing organ transplantation. There is considerable evidence indicating that the activity of PI3K and its downstream positive and negative regulators plays a major role in regulating the activation of different subsets of effector CD4+ T cells. Thus, we investigated whether class A PI3Ks are involved in the development of acute allograft rejection, we found that p110α protein expression levels in the allograft group were significantly up-regulated on day 7 post-transplantation, while p110β and p110δ expression was significantly increased on days 5 and 7 post-transplantation. Treatment with PIK and IC but not TGX significantly prolonged allograft survival and altered pathological grades. The percentages of Th1 and Th2, Th17 and Tfh cells/monocytes in the spleens from the IC treatment group were all down-regulated. In contrast, the percentage of Treg cells in the spleens from IC treatment group was remarkably increased. IL-17A and IL-21 and IFN-γ expression levels were significantly decreased in the IC group. Moreover, IC significantly reduced P70 S6 Kinase β and 4E-BP1 protein expression. In conclusion, small-molecule inhibitors of p110δ and p110α suppress acute heart allograft rejection in mice. These inhibitors may play a role in anti-rejection by impacting the phosphorylation and expression of proteins in the AKT/mTOR pathway to modulate CD4+ T cell subsets levels in recipients, reduce proinflammatory factor expression and increase anti-inflammatory cytokine expression. These findings indicate that some small-molecule inhibitors of p110 can serve as novel targets in acute allograft rejection treatment.
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Affiliation(s)
- Chuanlei Yang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022, China
- Department of Cardiovascular Surgery, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, China
| | - Xing Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022, China
| | - Zhanjie Wei
- Department of Cardiovascular Surgery, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, China
| | - Jie Xiao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022, China
| | - Weiqiang Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022, China
| | - Yuqiang Shang
- Department of Cardiovascular Surgery, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, China
| | - Jinping Liu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430022, China
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17
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Ayasoufi K, Kohei N, Nicosia M, Fan R, Farr GW, McGuirk PR, Pelletier MF, Fairchild RL, Valujskikh A. Aquaporin 4 blockade improves survival of murine heart allografts subjected to prolonged cold ischemia. Am J Transplant 2018; 18:1238-1246. [PMID: 29243390 PMCID: PMC5910181 DOI: 10.1111/ajt.14624] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 11/30/2017] [Accepted: 12/03/2017] [Indexed: 01/25/2023]
Abstract
Prolonged cold ischemia storage (CIS) is a leading risk factor for poor transplant outcome. Existing strategies strive to minimize ischemia-reperfusion injury in transplanted organs, yet there is a need for novel approaches to improve outcomes of marginal allografts and expand the pool of donor organs suitable for transplantation. Aquaporins (AQPs) are a family of water channels that facilitate homeostasis, tissue injury, and inflammation. We tested whether inhibition of AQP4 improves the survival of fully MHC-mismatched murine cardiac allografts subjected to 8 hours of CIS. Administration of a small molecule AQP4 inhibitor during donor heart collection and storage and for a short-time posttransplantation improves the viability of donor graft cells, diminishes donor-reactive T cell responses, and extends allograft survival in the absence of other immunosuppression. Furthermore, AQP4 inhibition is synergistic with cytotoxic T lymphocyte-associated antigen 4-Ig in prolonging survival of 8-hour CIS heart allografts. AQP4 blockade markedly reduced T cell proliferation and cytokine production in vitro, suggesting that the improved graft survival is at least in part mediated through direct effects on donor-reactive T cells. These results identify AQPs as a promising target for diminishing donor-specific alloreactivity and improving the survival of high-risk organ transplants.
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Affiliation(s)
- Katayoun Ayasoufi
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Naoki Kohei
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Michael Nicosia
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Ran Fan
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | | | | | | | - Robert L. Fairchild
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Anna Valujskikh
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
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18
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c-Jun N-terminal kinase 1 defective CD4+CD25+FoxP3+ cells prolong islet allograft survival in diabetic mice. Sci Rep 2018; 8:3310. [PMID: 29459675 PMCID: PMC5818514 DOI: 10.1038/s41598-018-21477-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/05/2018] [Indexed: 02/06/2023] Open
Abstract
CD4+CD25+FoxP3+ cells (Tregs) inhibit inflammatory immune responses to allografts. Here, we found that co-transplantation of allogeneic pancreatic islets with Tregs that are defective in c-Jun N-terminal kinase 1 (JNK1) signaling prolongs islet allograft survival in the liver parenchyma of chemically induced diabetic mice (CDM). Adoptively transferred JNK1−/− but not wild-type (WT) Tregs survive longer in the liver parenchyma of CDM. JNK1−/− Tregs are resistant to apoptosis and express anti-apoptotic molecules. JNK1−/− Tregs express higher levels of lymphocyte activation gene-3 molecule (LAG-3) on their surface and produce higher amounts of the anti-inflammatory cytokine interleukin (IL)-10 compared with WT Tregs. JNK1−/− Tregs inhibit liver alloimmune responses more efficiently than WT Tregs. JNK1−/− but not WT Tregs are able to inhibit IL-17 and IL-21 production through enhanced LAG-3 expression and IL-10 production. Our study identifies a novel role of JNK1 signaling in Tregs that enhances islet allograft survival in the liver parenchyma of CDM.
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19
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Asano K, Takahashi E, Yoshimura S, Nakane A. Oral administration of salmon cartilage proteoglycan extends the survival of allografts in mice. Biomed Rep 2018; 8:37-40. [PMID: 29387389 DOI: 10.3892/br.2017.1011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/06/2017] [Indexed: 01/03/2023] Open
Abstract
Proteoglycan (PG) is a complex glycohydrate that is widely distributed in the extracellular matrix. Oral administration of PG extracted from salmon nasal cartilage has been reported to attenuate the severity and proinflammatory cytokine responses in mouse experimental colitis, autoimmune encephalomyelitis, collagen-induced arthritis and obesity-induced inflammation. In the present study, the effects of salmon nasal cartilage PG on skin allografts were investigated in a mouse model. Oral administration of PG prolonged the survival of skin grafts within 10 days of transplantation. Although PG failed to inhibit allograft rejection at the final stage of transplantation, PG attenuated the cell infiltration in the skin under the transplanted site.
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Affiliation(s)
- Krisana Asano
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan.,Biopolymer and Health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Emiko Takahashi
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Sayuri Yoshimura
- Biopolymer and Health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan.,Tohoku Women's College, Hirosaki, Aomori 036-8503, Japan
| | - Akio Nakane
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan.,Biopolymer and Health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
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20
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Zhang Y, Wang X, Mao L, Yang D, Gao W, Tian Z, Zhang M, Yang X, Ma K, Wu Y, Ni B. Dual roles of IL-22 at ischemia-reperfusion injury and acute rejection stages of rat allograft liver transplantation. Oncotarget 2017; 8:115384-115397. [PMID: 29383167 PMCID: PMC5777779 DOI: 10.18632/oncotarget.23266] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 12/04/2017] [Indexed: 12/12/2022] Open
Abstract
Interleukin-22 (IL-22) is a recently identified regulator of inflammation, but little is known about its role in liver transplantation. Therefore, in this study, we explored the roles and the underlying mechanisms of IL-22 in acute allograft rejection by using a rat allogeneic liver transplantation model. Results showed that allograft liver transplantation led to damage of the parent liver and to significantly increased IL-22 expression in the allograft liver and plasma of the recipient rats compared with the rats who received isografts. Moreover, the significantly increased IL-22 expression was accompanied by markedly increased level of phospho-STAT3 in the allogeneic liver tissues after transplantation. Of note, neutralization of the IL-22 protein in recipient rats significantly worsened the function of the allograft liver at 1 day post-transplantation (ischemia-reperfusion injury, IRI) but improved the function at 7 days post-transplantation (acute rejection, AR). At IRI stage, IL-22 protected liver function through the increase of anti-apoptosis and pro-regeneration cytokines. However, IL-22 led to the increase of pro-inflammation factors at AR stage, accompanied by the marked increase of the Th17 and the marked decrease of Treg cells in allograft recipient rats through modulating the expression of chemokines for different cell types, which however were reversed by in vivo IL-22 neutralization. Results indicate the dual roles of IL-22 and suggest the differential potential clinical application of IL-22 at different stage of allograft liver transplantation.
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Affiliation(s)
- Yi Zhang
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
- Department of Pathophysiology and High Altitude Pathology, Third Military Medical University, Chongqing 400038, PR China
- Laboratory Department, 150th Hospital of PLA, Luoyang 471031, PR China
| | - Xiaofei Wang
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, PR China
| | - Liwei Mao
- Department of Oncology, 309th Hospital of PLA, Beijing 100091, PR China
| | - Di Yang
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
| | - Weiwu Gao
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
| | - Zhiqiang Tian
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
| | - Mengjie Zhang
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
| | - Xia Yang
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
| | - Kuansheng Ma
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, PR China
| | - Yuzhang Wu
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
| | - Bing Ni
- Institute of Immunology, PLA, Third Military Medical University, Chongqing 400038, PR China
- Department of Pathophysiology and High Altitude Pathology, Third Military Medical University, Chongqing 400038, PR China
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21
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Uehara M, McGrath MM, Ohori S, Solhjou Z, Banouni N, Routray S, Evans C, DiNitto JP, Elkhal A, Turka LA, Strom TB, Tullius SG, Winkler DG, Azzi J, Abdi R. Regulation of T cell alloimmunity by PI3Kγ and PI3Kδ. Nat Commun 2017; 8:951. [PMID: 29038423 PMCID: PMC5643371 DOI: 10.1038/s41467-017-00982-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 08/10/2017] [Indexed: 01/04/2023] Open
Abstract
Phosphatidylinositol-3-kinases (PI3K) γ and δ are preferentially enriched in leukocytes, and defects in these signaling pathways have been shown to impair T cell activation. The effects of PI3Kγ and PI3Kδ on alloimmunity remain underexplored. Here, we show that both PI3Kγ−/− and PI3KδD910A/D910A mice receiving heart allografts have suppression of alloreactive T effector cells and delayed acute rejection. However, PI3Kδ mutation also dampens regulatory T cells (Treg). After treatment with low dose CTLA4-Ig, PI3Kγ−/−, but not PI3ΚδD910A/D910A, recipients exhibit indefinite prolongation of heart allograft survival. PI3KδD910A/D910A Tregs have increased apoptosis and impaired survival. Selective inhibition of PI3Kγ and PI3Kδ (using PI3Kδ and dual PI3Kγδ chemical inhibitors) shows that PI3Kγ inhibition compensates for the negative effect of PI3Kδ inhibition on long-term allograft survival. These data serve as a basis for future PI3K-based immune therapies for transplantation. Phosphatidylinositol-3-kinases (PI3K) γ and δ are key regulators of T cell signaling. Here the author show, using mouse heart allograft transplantation models, that PI3Kγ or PI3Kδ deficiency prolongs graft survival, but selective inhibition of PI3Kγ or PI3Kδ reveals alternative transplant survival outcomes post CTLA4-Ig treatment.
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Affiliation(s)
- Mayuko Uehara
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Martina M McGrath
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Shunsuke Ohori
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Zhabiz Solhjou
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Naima Banouni
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Sujit Routray
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Catherine Evans
- Infinity Pharmaceuticals, Inc 784 Memorial Drive, Cambridge, MA, 02139, USA
| | - Jonathan P DiNitto
- Infinity Pharmaceuticals, Inc 784 Memorial Drive, Cambridge, MA, 02139, USA
| | - Abdallah Elkhal
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Laurence A Turka
- Center for Transplantation Sciences, Massachusetts General Hospital/Harvard Medical School, Massachusetts Massachusetts General Hospital-East Charlestown Navy Yard Building 149, 13th Street, Charlestown, MA, 02129-2020, USA
| | - Terry B Strom
- The Transplant Institute, Beth Israel Deaconess Medical Center/Harvard Medical School, 330 Brookline Avenue, E/CLS Room 607, Boston, MA, 02215, USA
| | - Stefan G Tullius
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - David G Winkler
- Infinity Pharmaceuticals, Inc 784 Memorial Drive, Cambridge, MA, 02139, USA
| | - Jamil Azzi
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA.
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22
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Differential Role of B Cells and IL-17 Versus IFN-γ During Early and Late Rejection of Pig Islet Xenografts in Mice. Transplantation 2017; 101:1801-1810. [PMID: 27893617 DOI: 10.1097/tp.0000000000001489] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Xenogeneic islet transplantation is an emerging therapeutic option for diabetic patients. However, immunological tolerance to xenogeneic islets remains a challenge. METHODS The current study used a pig-to-mouse discordant xenogeneic islet transplant model to examine antidonor xenogeneic immune responses during early and late rejection and to determine experimental therapeutic interventions that promote durable pig islet xenograft survival. RESULTS We found that during early acute rejection of pig islet xenografts, the rejecting hosts exhibited a heavy graft infiltration with B220 B cells and a robust antipig antibody production. In addition, early donor-stimulated IL-17 production, but not IFN-γ production, dominated during early acute rejection. Recipient treatment with donor apoptotic 1-ethyl-3-(3'-dimethylaminopropyl)-carbodiimide-treated splenocytes significantly inhibited antidonor IL-17 response, and when combined with B cell depletion and a short course of rapamycin led to survival of pig islet xenografts beyond 100 days in approximately 65% recipients. Interestingly, treated recipients in this model experienced late rejection between 100 and 200 days posttransplant, which coincided with B cell reconstitution and an ensuing emergence of a robust antidonor IFN-γ, but not IL-17, response. CONCLUSIONS These findings reveal that early and late rejection of pig islet xenografts may be dominated by different immune responses and that maintenance of long-term xenogeneic tolerance will require strategies that target the temporal sequence of antixenogeneic immune responses.
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23
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Luan J, Zhao Y, Zhang Y, Miao J, Li J, Chen ZN, Zhu P. CD147 blockade as a potential and novel treatment of graft rejection. Mol Med Rep 2017; 16:4593-4602. [PMID: 28849101 PMCID: PMC5647014 DOI: 10.3892/mmr.2017.7201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 08/01/2017] [Indexed: 11/25/2022] Open
Abstract
Cluster of differentiation (CD)147 is highly involved in the T cell activation process. High CD147 expression is observed on the surfaces of activated T cells, particularly CD4+ T cells. In organ transplantation, it is important to prevent graft rejection resulting from the excessive activation of T cells, particularly CD4+ T cells, which exhibit a key role in amplifying the immune response. The present study aimed to investigate the effects of CD147 blockade in vitro and in vivo and used a transplant rejection system to assess the feasibility of utilizing CD147 antibody-based immunosuppressant drugs for the treatment of graft rejection. The effects of CD147 antibodies were evaluated on lymphocyte proliferation stimulated by phytohemagglutinin or CD3/CD28 magnetic beads and in a one-way mixed lymphocyte reaction (MLR) system in vitro. For the in vivo analysis, an allogeneic skin transplantation mouse model was used. CD147 antibodies were effective against lymphocytes, particularly CD4+T lymphocytes, and were additionally effective in the one-way MLR system. In the allogeneic skin transplantation mouse model, the survival of transplanted skin was extended in the CD147 antibody-treated group. Furthermore, the level of inflammatory cell infiltration in transplanted skin was reduced. CD147 blockade decreased the serum levels of interleukin (IL)-17 and the proportions of peripheral blood CD4+ and CD8+ memory T cells. The data demonstrated that CD147 blockade suppressed skin graft rejection, primarily by suppressing CD4+T and memory T cell proliferation, indicating that CD147 exhibits great potential as a target of immunosuppressant drugs.
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Affiliation(s)
- Jing Luan
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yu Zhao
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yang Zhang
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jinlin Miao
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jia Li
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhi-Nan Chen
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Ping Zhu
- National Translational Science Center for Molecular Medicine, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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24
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No prolongation of skin allograft survival by immunoproteasome inhibition in mice. Mol Immunol 2017; 88:32-37. [DOI: 10.1016/j.molimm.2017.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/18/2017] [Accepted: 05/25/2017] [Indexed: 01/03/2023]
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25
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Gupta PK, Wagner SR, Wu Q, Shilling RA. IL-17A Blockade Attenuates Obliterative Bronchiolitis and IFN-γ Cellular Immune Response in Lung Allografts. Am J Respir Cell Mol Biol 2017; 56:708-715. [PMID: 28118023 DOI: 10.1165/rcmb.2016-0154oc] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Obliterative bronchiolitis (OB), characterized by fibrous obliteration of the small airways, is a major impediment to long-term survival in lung allograft recipients. We found previously that IL-17A is produced primarily by CD4+ T cells and γδ T cells after lung transplant in a mouse model of orthotopic lung transplant. The absence of either subset of T cells was compensated for by expansion of the other subset, which suggested that systemic blockade of IL-17A was necessary. To determine the specific role of IL-17A in the development of OB, we treated lung allograft recipients with an IL-17A antagonistic antibody. After IL-17A blockade, the incidence of OB was significantly reduced in lung allografts. IL-17A blockade also significantly attenuated the severity of acute rejection and overall lung fibrosis. The decreased OB incidence was associated with reduced lymphocyte recruitment, particularly CD8+ T cells and other IFN-γ-producing lymphocytes, to the lung allograft. Interestingly, IL-17A blockade led to an increase in the frequency of IL-17A-producing T-helper cell type 17 cells and γδ T cells in lung allografts, suggesting that IL-17A is a negative regulator of these T cells. Our data suggest that blocking IL-17A after lung transplant reduces the overall IFN-γ-mediated lymphocyte response and decreases the development of OB.
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Affiliation(s)
- Pawan Kumar Gupta
- 1 Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, and
| | - Sarah R Wagner
- 1 Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, and
| | - Qiang Wu
- 1 Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, and
| | - Rebecca A Shilling
- 1 Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, and.,2 Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, Illinois
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Abstract
The development of post-transplantation antibodies against non-HLA autoantigens is associated with rejection and decreased long-term graft survival. Although our knowledge of non-HLA antibodies is incomplete, compelling experimental and clinical findings demonstrate that antibodies directed against autoantigens such as angiotensin type 1 receptor, perlecan and collagen, contribute to the process of antibody-mediated acute and chronic rejection. The mechanisms that underlie the production of autoantibodies in the setting of organ transplantation is an important area of ongoing investigation. Ischaemia-reperfusion injury, surgical trauma and/or alloimmune responses can result in the release of organ-derived autoantigens (such as soluble antigens, extracellular vesicles or apoptotic bodies) that are presented to B cells in the context of the transplant recipient's antigen presenting cells and stimulate autoantibody production. Type 17 T helper cells orchestrate autoantibody production by supporting the proliferation and maturation of autoreactive B cells within ectopic tertiary lymphoid tissue. Conversely, autoantibody-mediated graft damage can trigger alloimmunity and the development of donor-specific HLA antibodies that can act in synergy to promote allograft rejection. Identification of the immunologic phenotypes of transplant recipients at risk of non-HLA antibody-mediated rejection, and the development of targeted therapies to treat such rejection, are sorely needed to improve both graft and patient survival.
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Chen QR, Wang LF, Xia SS, Zhang YM, Xu JN, Li H, Ding YZ. Role of interleukin-17A in early graft rejection after orthotopic lung transplantation in mice. J Thorac Dis 2016; 8:1069-79. [PMID: 27293822 DOI: 10.21037/jtd.2015.12.08] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND The cellular and molecular mechanisms underlying lung allograft rejection remain poorly understood. We investigated the potential role of interleukin (IL)-17A in lung transplant rejection in a mouse model, because previous studies in clinical and rodent models have implicated IL-17A in both acute and chronic rejection. METHODS To generate an orthotopic lung transplantation model, lungs from C57BL/6 or BALB/c mice were transplanted into C57BL/6 mice (isograft and allograft models, respectively). The effects of anti-IL-17A treatment in allograft recipients were investigated. The histological features and rejection status of isografts and allografts were assessed at 3, 7, and 28 days after transplantation, and differences in graft infiltrating cells and mRNA expression of relevant cytokines were quantified at 3 and 7 days after transplantation. RESULTS As expected, isografts showed no obvious signs of rejection, whereas allografts exhibited minimal-to-mild rejection (grade A1-A2) by day 3 and moderate-to-severe rejection (grade A3-A4) by day 7, without evidence of obliterative bronchiolitis (OB). However, by 28 days, evidence of OB was observed in 67% (2/3) of allografts and severe rejection (grade A4) was observed in all. IL-17 mRNA expression in allografts was increased with rejection, and interferon (IFN)-γ and IL-6 mRNA expression levels followed a similar pattern. In contrast, IL-22 expression in allografts was only slightly increased. Antibody (Ab) neutralization of IL-17A diminished the signs of acute rejection at 7 days after transplantation in allografts, and this early protection was accompanied by a decrease in cellular stress according to histological evaluation, suggesting the involvement of IL-17A in the development of early post-transplantation lesions. CONCLUSIONS Our data indicate that IL-17A is important in the pathophysiology of allograft rejection, and neutralization of IL-17A is a potential therapeutic strategy to preventing lung transplant rejection.
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Affiliation(s)
- Qi-Rui Chen
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
| | - Li-Feng Wang
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
| | - Si-Si Xia
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
| | - Ya-Mei Zhang
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
| | - Jiang-Nan Xu
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
| | - Hui Li
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
| | - Yao-Zhong Ding
- 1 Department of Thoracic Surgery, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China ; 2 Department of Immunology, Capital Medical University, Beijing 100069, China
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Zhang A, Wang K, Zhou C, Gan Z, Ma D, Ye P, Sun Y, Wu J, Huang X, Ren L, Deng P, Wu C, Yue Z, Ding X, Chen J, Xia J. Knockout of microRNA-155 ameliorates the Th1/Th17 immune response and tissue injury in chronic rejection. J Heart Lung Transplant 2016; 36:175-184. [PMID: 27296836 DOI: 10.1016/j.healun.2016.04.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 03/22/2016] [Accepted: 04/13/2016] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) are integral for maintaining immune homeostasis and self-tolerance. The influence of miRNAs on T-cell differentiation and plasticity are critical in the development of chronic rejection of transplanted hearts. In this study, we sought to determine whether the knockout of miR-155 affects the development of cardiac allograft vasculopathy (CAV) in a murine model. METHODS miRNA microarray and quantitative polymerase chain reaction (qPCR) analyses were performed for allograft neointimal lesion samples in chronic rejection. A model of heterotopic murine heart transplantation (bm12 to miR-155+/+ or miR-155-/- mice) was then used to analyze allograft survival, histology, mRNA expression and T-cell sub-populations in spleens. The accelerated experiments were performed by intraperitoneal injection of either recombinant interleukin-17A or phosphate-buffered saline (PBS) after heart transplantation. For the competitive transfer experiments, CD4+ splenocytes from wild-type (WT) or miR-155-/- mice were mixed and injected into Rag1-/- mice, and cardiac transplantation was performed after 24 hours. The differentiation of T-helper subsets (Th1/Th17/iTreg) was investigated in vitro. RESULTS miR-155-/- mice showed resistance to cardiac rejection along with weakened T-cell-mediated inflammation, especially for Th17 cells. Recombinant IL-17A could restore this relieved injury. The competitive experiments implied that miR-155 plays a vital role in the stability of the Th17 phenotype. In vitro, we also demonstrated that miR-155-/- mice exhibit a defect in Th17 differentiation. CONCLUSIONS miR-155 regulates Th1/Th17-related inflammation in chronic cardiac rejection and may be a potential therapeutic target to attenuate cardiac allograft rejection. Despite advancements in immunosuppressive therapy, the immunologic mechanisms responsible for allograft rejection remain an important issue for both clinicians and researchers. Allograft rejection is a T-cell-dependent phenomenon and is critically dependent on inflammation mediated by CD4+ Th subsets, including Th1, Th2, Th17, Th9 and regulatory T (Treg) cells.
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Affiliation(s)
- Anchen Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiovascular Medicine, Central Hospital of Wuhan, Wuhan, China
| | - Ke Wang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Gan
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazh'ong University of Science and Technology, Wuhan, China
| | - Dongxia Ma
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Ye
- Department of Cardiovascular Medicine, Central Hospital of Wuhan, Wuhan, China
| | - Yuan Sun
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofan Huang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lingyun Ren
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Deng
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chuangyan Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhang Yue
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangchao Ding
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiuling Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiovascular Medicine, Central Hospital of Wuhan, Wuhan, China; Department of Cardiovascular Surgery, Central Hospital of Wuhan, Wuhan, China.
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Zhang R, Wang M, Xia N, Yu S, Chen Y, Wang N. Cloning and analysis of gene expression of interleukin-17 homolog in triangle-shell pearl mussel, Hyriopsis cumingii, during pearl sac formation. FISH & SHELLFISH IMMUNOLOGY 2016; 52:151-156. [PMID: 26994668 DOI: 10.1016/j.fsi.2016.03.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 03/10/2016] [Accepted: 03/13/2016] [Indexed: 06/05/2023]
Abstract
Successful allograft of mantle tissues in certain bivalve mollusks can form pearl sacs secreting nacre for pearl production. Little was known, however, about the immune consequences in response to the tissue transplantation. In the present study, interleukin (IL)-17, one of the key regulatory genes of alloimmunity, was cloned from the triangle-shell pearl mussel (HcIL-17) Hyriopsis cumingii by high-throughput sequencing of the mantle transcriptome. The sequence of HcIL-17 contains an open reading frame of 567 bp encoding a putative protein of 188 amino acid residues. Analysis of sequence characteristics, multiple sequence alignment and phylogenetic analysis indicated HcIL-17 was a novel member in the mollusk IL-17 family. Expression of the HcIL-17 gene in donor mantle tissues and in hemocytes of recipient mussel was up-regulated dramatically within 7 days in response to the mantle tissue allograft for pearl aquaculture, suggesting remarkable proinflammatory responses during pearl sac formation in triangle-shell pearl mussels. Analysis of the time-course expression of HcIL-17 gene revealed the induction of HcIL-17 was time-dependent, reflecting the different periods of alloimmune events in triangle-shell mussels. The results of this study provide essential background information for further investigation of mollusk alloimmunity.
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Affiliation(s)
- Rui Zhang
- School of Medicine, Jiangsu University, Zhenjiang City, 212013, China
| | - Meng Wang
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang City, 212013, China
| | - Ni Xia
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang City, 212013, China
| | - Shuang Yu
- School of Medicine, Jiangsu University, Zhenjiang City, 212013, China
| | - Yi Chen
- School of Medicine, Jiangsu University, Zhenjiang City, 212013, China
| | - Ning Wang
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang City, 212013, China.
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Zhang L, Zhu Y, Zhang D, Zhang J, Tian Y. Platelet factor 4 protects kidney allograft in a rat kidney transplantation model. Inflammation 2015; 38:520-6. [PMID: 24986443 DOI: 10.1007/s10753-014-9958-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Platelets are the cellular mediator of thrombosis, but it is becoming increasingly evident that platelets actively participate in inflammation and immune responses. A recent paper indicated that platelet factor 4 (PF4) alleviated cardiac allograft rejection in mice. But the role of PF4 on kidney transplantation has never been investigated. In our current experiment, PF4 administration alleviates immune responses to kidney transplantation. PF4 significantly alleviates vascular and glomerular changes, as well as interstitial inflammation, fibrosis, and tubular atrophy at day 56 after transplantation. PF4 decreases interleukin (IL)-17 production in vivo and also limits Th17 differentiation in vitro. Furthermore, the alleviated chronic vasculopathy and tubulointerstitial inflammation induced by PF4 were abolished with additional IL-17 administration. Meanwhile, decreased serum creatinine and urea induced by PF4 were also reversed by recombinant mouse IL-17 (rmIL-17). In conclusion, PF4 plays a protective role in chronic kidney allograft and this was associated with inhibition of IL-17 production.
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Affiliation(s)
- Lei Zhang
- Department of Urology, Capital Medical University of Beijing Friendship Hospital, Yongan Road 95# of Xicheng District, 100050, Beijing, China
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31
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Romanowski M, Kłoda K, Osękowska B, Domański L, Pawlik A, Safranow K, Ciechanowski K. Influence of the IL17A and IL17F gene polymorphisms on the long-term kidney allograft function and return to dialysis after kidney transplantation. Clin Transplant 2015; 29:1187-94. [PMID: 26447633 DOI: 10.1111/ctr.12649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2015] [Indexed: 01/06/2023]
Abstract
The immune response after allogenic transplantation is a complex phenomenon involving cytokines, chemokines, and other mediators of inflammation. The aim of this study was to evaluate the influence of the IL17A and IL17F gene polymorphisms on long-term kidney allograft function, graft function loss/return to dialysis, and mortality after kidney transplantation. This study enrolled 269 Caucasian deceased donor renal transplant recipients. The rs2275913:G>A (-197G>A) polymorphism within the IL17A gene promoter and rs2397084:T>C (Glu126Gly), rs11465553:G>A (Val155Ile), and rs763780:T>C (His167Arg) polymorphisms within the IL17F gene were genotyped. Creatinine concentrations 12, 24, 36, 48, and 60 months after transplantation were significantly higher in recipients with the rs2275913:A>G IL17A GG genotype (GG vs. GA + AA: p = 0.03, p = 0.004, p = 0.006, p = 0.03, p = 0.04, respectively). Moreover, the GG genotype was statistically significantly associated with increased risk of delayed graft function. This association remained significant in multivariate regression analysis adjusted for recipients' age and sex. In the case of the rs11465553, IL17F univariate Cox regression analysis showed statistically significant association of GA genotype with higher risk of graft loss/return to dialysis (GA vs. GG: HR = 2.795, 95%CI = 1.031-7.579, p = 0.04). The results of our study suggest that the GG genotype of the rs2275913 IL17A gene promoter polymorphism is associated with significantly impaired long-term kidney allograft function, whereas the GA genotype of the rs11465553 IL17F gene polymorphism may be associated with a significantly higher risk of graft function loss and return to dialysis after kidney transplantation.
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Affiliation(s)
- Maciej Romanowski
- Clinical Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Karolina Kłoda
- Clinical Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Bogumiła Osękowska
- Clinical Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Leszek Domański
- Clinical Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland
| | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland
| | - Kazimierz Ciechanowski
- Clinical Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
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T Helper Subsets, Peripheral Plasticity, and the Acute Phase Protein, α1-Antitrypsin. BIOMED RESEARCH INTERNATIONAL 2015; 2015:184574. [PMID: 26583093 PMCID: PMC4637007 DOI: 10.1155/2015/184574] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 05/30/2015] [Indexed: 02/08/2023]
Abstract
The traditional model of T helper differentiation describes the naïve T cell as choosing one of several subsets upon stimulation and an added reciprocal inhibition aimed at maintaining the chosen subset. However, to date, evidence is mounting to support the presence of subset plasticity. This is, presumably, aimed at fine-tuning adaptive immune responses according to local signals. Reprograming of cell phenotype is made possible by changes in activation of master transcription factors, employing epigenetic modifications that preserve a flexible mode, permitting a shift between activation and silencing of genes. The acute phase response represents an example of peripheral changes that are critical in modulating T cell responses. α1-antitrypsin (AAT) belongs to the acute phase responses and has recently surfaced as a tolerogenic agent in the context of adaptive immune responses. Nonetheless, AAT does not inhibit T cell responses, nor does it shutdown inflammation per se; rather, it appears that AAT targets non-T cell immunocytes towards changing the cytokine environment of T cells, thus promoting a regulatory T cell profile. The present review focuses on this intriguing two-way communication between innate and adaptive entities, a crosstalk that holds important implications on potential therapies for a multitude of immune disorders.
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33
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Zhang C, Zhang X, Chen XH. Inhibition of the interleukin-6 signaling pathway: a strategy to induce immune tolerance. Clin Rev Allergy Immunol 2015; 47:163-73. [PMID: 24647663 DOI: 10.1007/s12016-014-8413-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Interleukin-6 (IL-6) is a proinflammatory cytokine that is multifunctional, with multifaceted effects. IL-6 signaling plays a vital role in the control of the differentiation and activation of T lymphocytes by inducing different pathways. In particular, IL-6 controls the balance between Th17 cells and regulatory T (Treg) cells. An imbalance between Treg and Th17 cells is thought to play a pathological role in various immune-mediated diseases. Deregulated IL-6 production and signaling are associated with immune tolerance. Therefore, methods of inhibiting IL-6 production, receptors, and signaling pathways are strategies that are currently being widely pursued to develop novel therapies that induce immune tolerance. This survey aims to provide an updated account of why IL-6 inhibitors are becoming a vital class of drugs that are potentially useful for inducing immune tolerance as a treatment for autoimmune diseases and transplant rejection. In addition, we discuss the effect of targeting IL-6 in recent experimental and clinical studies on autoimmune diseases and transplant rejection.
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Affiliation(s)
- Cheng Zhang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, People's Republic of China,
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34
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Cheng L, Xing H, Mao X, Li L, Li X, Li Q. Lipocalin-2 promotes m1 macrophages polarization in a mouse cardiac ischaemia-reperfusion injury model. Scand J Immunol 2015; 81:31-8. [PMID: 25359467 DOI: 10.1111/sji.12245] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Accepted: 11/14/2014] [Indexed: 01/18/2023]
Abstract
Ischaemia-reperfusion (IR) injury is a major issue in cardiac transplantation. Inflammatory processes play a major role in myocardial IR injury. Lipocalin-2 (Lcn2), which is also known as neutrophil gelatinase-associated lipocalin, has multiple functions that include the regulation of cell death/survival, cell migration/invasion, cell differentiation and iron delivery. In our study, the hearts of C57BL/6 mice were flushed with and stored in cold Bretschneider solution for 8 h and then transplanted into a syngeneic recipient. We found that Lcn2 neutralization decreased the recruitment of neutrophils and macrophages. Troponin T (TnT) production, 24 h after myocardial IR injury, was reduced through anti-Lcn2 antibody administration. The cardiac output at 60 mmHg of afterload pressure was significantly increased in hearts administrated with anti-Lcn2 antibody administration (anti-Lcn-2: 58.9 ± 5.62 ml/min; control: 25.8 ± 4.1 ml/min; P < 0.05). Anti-Lcn2 antibody treatment suppressed M1 marker (IL-12, IL-23 and iNOS) expression but increased M2 marker (IL-10, Arg1 and Mrc1) expression. Furthermore, in our vitro and vivo experiments, we found that anti-Lcn2 antibody treatment failed to induce M1-related gene expression in response to LPS and that Lcn2 neutralization enhanced the expression of M2-related genes following IL-4 treatment. In conclusion, Lcn2 promotes M1 polarization, and Lcn2 neutralization attenuates cardiac IR injury.
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Affiliation(s)
- L Cheng
- Department of Gynaecology and Obstetrics, Xiangyan Central Hospital, Hubei University of Arts and Science, Xiangyang, China
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35
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Gorbacheva V, Ayasoufi K, Fan R, Baldwin WM, Valujskikh A. B cell activating factor (BAFF) and a proliferation inducing ligand (APRIL) mediate CD40-independent help by memory CD4 T cells. Am J Transplant 2015; 15:346-57. [PMID: 25496308 PMCID: PMC4304935 DOI: 10.1111/ajt.12984] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 08/07/2014] [Accepted: 08/12/2014] [Indexed: 01/25/2023]
Abstract
Donor-reactive memory T cells undermine organ transplant survival and are poorly controlled by immunosuppression or costimulatory blockade. Memory CD4 T cells provide CD40-independent help for the generation of donor-reactive effector CD8 T cells and alloantibodies (alloAbs) that rapidly mediate allograft rejection. The goal of this study was to investigate the role of B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) in alloresponses driven by memory CD4 T cells. The short-term neutralization of BAFF alone or BAFF plus APRIL synergized with anti-CD154 mAb to prolong heart allograft survival in recipients containing donor-reactive memory CD4 T cells. The prolongation was associated with reduction in antidonor alloAb responses and with inhibited reactivation and helper functions of memory CD4 T cells. Additional depletion of CD8 T cells did not enhance the prolonged allograft survival suggesting that donor-reactive alloAbs mediate late graft rejection in these recipients. This is the first report that targeting the BAFF cytokine network inhibits both humoral and cellular immune responses induced by memory CD4 T cells. Our results suggest that reagents neutralizing BAFF and APRIL may be used to enhance the efficacy of CD40/CD154 costimulatory blockade and improve allograft survival in T cell-sensitized recipients.
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Affiliation(s)
- Victoria Gorbacheva
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Katayoun Ayasoufi
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Ran Fan
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - William M. Baldwin
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
| | - Anna Valujskikh
- Glickman Urological Institute and Department of Immunology, Cleveland Clinic, Cleveland, Ohio 44195, USA
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36
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Gorbacheva V, Fan R, Wang X, Baldwin WM, Fairchild RL, Valujskikh A. IFN-γ production by memory helper T cells is required for CD40-independent alloantibody responses. THE JOURNAL OF IMMUNOLOGY 2014; 194:1347-56. [PMID: 25548230 DOI: 10.4049/jimmunol.1401573] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cognate T-B cell interactions and CD40-CD154 costimulation are essential for productive humoral immunity against T-dependent Ags. We reported that memory CD4 T cells can deliver help to B cells and induce pathogenic IgG alloantibodies in the absence of CD40-CD154 interactions. To determine cytokine requirements for CD40-independent help, we used CD40(-/-) mice containing differentiated subsets of donor-reactive memory Th cells as heart allograft recipients. Th1 and Th17, but not Th2, memory CD4 T cells elicited high titers of anti-donor Ab. Abs induced by Th17 memory CD4 T cells had decreased reactivity against donor MHC class I molecules and inferior ability to cause complement deposition in heart allografts compared with Abs induced by Th1 cells, suggesting a requirement for IFN-γ during CD40-independent help. IFN-γ neutralization inhibited helper functions of memory CD4 T cells in both CD40(-/-) recipients and wild type recipients treated with anti-CD154 mAb. Our results suggest that IFN-γ secreted by pre-existing memory helper cells determines both isotype and specificity of donor-reactive alloantibodies and can thus affect allograft pathology. This information may be valuable for identifying transplant patients at risk for de novo development of pathogenic alloantibodies and for preventing alloantibody production in T cell-sensitized recipients.
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Affiliation(s)
- Victoria Gorbacheva
- Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195; and Department of Immunology, Cleveland Clinic, Cleveland, OH 44195
| | - Ran Fan
- Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195; and Department of Immunology, Cleveland Clinic, Cleveland, OH 44195
| | - Xi Wang
- Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195; and Department of Immunology, Cleveland Clinic, Cleveland, OH 44195
| | - William M Baldwin
- Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195; and Department of Immunology, Cleveland Clinic, Cleveland, OH 44195
| | - Robert L Fairchild
- Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195; and Department of Immunology, Cleveland Clinic, Cleveland, OH 44195
| | - Anna Valujskikh
- Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195; and Department of Immunology, Cleveland Clinic, Cleveland, OH 44195
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37
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van Besouw NM, Caliskan K, Peeters AMA, Klepper M, Dieterich M, Maat LPWM, Weimar W, Manintveld OC, Baan CC. Interleukin-17-producing CD4(+) cells home to the graft early after human heart transplantation. J Heart Lung Transplant 2014; 34:933-40. [PMID: 25682556 DOI: 10.1016/j.healun.2014.12.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 11/21/2014] [Accepted: 12/17/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Interleukin-17 (IL-17) is regarded as a major effector cytokine with pro-inflammatory actions. It has pleiotropic and environment-specific functions by promoting adaptive cytotoxic T-lymphocyte responses during inflammation. Therefore, it is tempting to speculate that IL-17 plays a major role in inflammatory responses in transplant recipients. We questioned whether IL-17 is expressed in the transplanted heart during acute rejection (AR), or during immunologic quiescence, and which graft-infiltrating lymphocytes produce IL-17. In addition, we analyzed donor-specific IL-17-producing cells in peripheral blood cells in comparable periods after transplantation. METHODS Endomyocardial biopsies from heart transplant recipients with early or late AR or in an immunologic quiescence period were analyzed for the presence of IL-17 mRNA. In addition, the capacity of graft-infiltrating lymphocytes (GILs) to produce IL-17 was analyzed. Moreover, we determined the frequency of donor-reactive IL-17-producing peripheral blood mononuclear cells (PBMCs) using an Elispot assay. RESULTS Twenty-one percent (14 of 67) of the biopsies assessed were positive for IL-17 mRNA. Thirteen of 41 biopsies were observed in the early period (≤3 months) after transplantation. One (of 26) of the late biopsies expressed IL-17 (p = 0.006). Specifically, IL-17 was expressed during early AR (57%, or 8 of 14), whereas biopsies from late AR (0 of 5) did not express IL-17 mRNA (p = 0.02). During AR, IL-17 is derived from IL-17-producing CD4(+)CD161(+), and not CD8(+), GILs. In contrast to the graft findings, we detected circulating donor-reactive IL-17-producing cells mostly during immunologic quiescence. CONCLUSIONS Particularly early after heart transplantation, IL-17-producing CD4(+) T cells home to the graft, which contributes to the AR process.
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Affiliation(s)
| | | | | | | | | | - Lex P W M Maat
- Department of Thoracic Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | | | | | - Carla C Baan
- Department of (a)Internal Medicine-Transplantation
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Mao X, Xing H, Mao A, Jiang H, Cheng L, Liu Y, Quan X, Li L. Netrin-1 attenuates cardiac ischemia reperfusion injury and generates alternatively activated macrophages. Inflammation 2014; 37:573-80. [PMID: 24234226 DOI: 10.1007/s10753-013-9771-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ischemia reperfusion (IR) injury is a major issue in cardiac transplantation and inflammatory processes play a major role in myocardial IR injury. Netrin-1 is a laminin-related protein identified as a neuronal guidance cue and netrin-1 expressed outside the nervous system inhibits migration of leukocytes in vitro and in vivo and attenuates inflammation-mediated tissue injury. In our study, hearts of C57BL/6 mice were flushed and stored in cold Bretschneider solution for 8 h and then transplanted into syngeneic recipient. We found that netrin-1 decreased cardiomyocyte apoptosis and recruitment of neutrophils and macrophages. Troponin T (TnT) production on 24 h after myocardial IR injury was reduced by netrin-1 administration. Cardiac output at 60 mmHg of afterload pressure was significantly increased in hearts with netrin-1 administration (IR + Netrin-1: 59.9 ± 5.78 ml/min; IR: 26.2 ± 4.3 ml/min; P < 0.05). Netrin-1 treatment increased expression of the alternatively activated macrophage (AAM) markers arginase-1 (Arg-1) and mannose receptor (MR) and promoted proliferator-activated receptor γ (PPARγ) expression in cardiac allograft. Furthermore, decreased TnT expression and reduced allograft infiltration of neutrophils and monocytes/macrophages by netrin-1 was abolished with addition of PPARγ antagonist. In conclusion, netrin-1 attenuates cardiac IR injury and generates AAM which contributes to the protective effect of netrin-1.
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Affiliation(s)
- Xiaogang Mao
- Department of Gynaecology and Obstetrics, Xiangyan Central Hospital, Hubei University of Arts and Science, Jinzhou Road 136#, Xiangyang, 441021, Hubei, China
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Shi Z, Lian A, Zhang F. Nuclear factor-κB activation inhibitor attenuates ischemia reperfusion injury and inhibits Hmgb1 expression. Inflamm Res 2014; 63:919-25. [PMID: 25209109 DOI: 10.1007/s00011-014-0765-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 06/08/2014] [Accepted: 07/26/2014] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE AND DESIGN To investigate the effects of nuclear factor-κB activation inhibitor dehydroxymethylepoxyquinomicin (DHMEQ) on cardiac ischemia reperfusion injury in a transplantation model. METHODS Hearts of C57BL/6 mice were flushed and stored in cold Bretschneider solution for 8 h and then transplanted into syngeneic recipient. Some mice were administrated intraperitoneally with DHMEQ (8 mg/kg) 1 h before reperfusion. For inhibition of Hmgb1, mice were treated with glycyrrhizin at 250 mg/kg prior to reperfusion. RESULTS DHMEQ decreased cardiomyocyte apoptosis and recruitment of neutrophils and macrophages. Troponin T (TnT) production on 24 h after myocardial IR injury was reduced by DHMEQ treatment. Cardiac output at 60 mmHg of afterload pressure was significantly increased in hearts with DHMEQ treatment (IR+DHMEQ: 58.6 ± 5.75 ml/min; IR: 25.9 ± 4.1 ml/min; P < 0.05). Furthermore, DHMEQ suppressed high mobility group protein (Hmgb1) expression. And the Caspase 3 activity, the number of TUNEL-positive cardiomyocytes and infiltrated neutrophil in cardiac allograft were markedly decreased with Hmgb1 inhibitor treatment. CONCLUSIONS Nuclear factor-κB activation inhibitor DHMEQ attenuates ischemia reperfusion injury in a cardiac transplantation model and it may be a suitable agent for the protection of the cardiac against ischemia reperfusion injury.
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Affiliation(s)
- Zhiyong Shi
- Department of Cardiothoracic Surgery, China Pingmei Shenma Medical Group General Hospital, Pingdingshan Kuanggong Road 1#, Henan, China,
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40
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Shi J, Li Y, Yang X, Yang D, Zhang Y, Liu Y. Upregulation of α-enolase in acute rejection of cardiac transplant in rat model: implications for the secretion of interleukin-17. Pediatr Transplant 2014; 18:575-85. [PMID: 25041443 DOI: 10.1111/petr.12306] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/28/2014] [Indexed: 11/29/2022]
Abstract
Acute allograft rejection remains a major problem in solid organ transplantation. The enzyme α-enolase has been shown to induce an immune response in cardiac transplantation. In this study, we investigated the role of α-enolase in acute allograft rejection in a rat model of heart transplantation. Hearts from either (WF: RT1(u) ) or (Lew: RT1(1) ) rats were transplanted into (Lew: RT1(1) ) rats. No rejection occurred in the isograft group, for which the median survival time was >168 days, whereas the median survival time of the allograft group was significantly less at 10 ± 2.1 days (n = 8 per group, p < 0.001). Increased inflammation was observed in allografts, including increased α-enolase expression and increased numbers of infiltrating CD4(+) T cells (p < 0.05). By immunohistochemical staining, we confirmed that α-enolase was expressed not only in myocardial cells but also in the infiltrating lymphocytes. However, on the fifth day after transplantation, α-enolase expression was no longer observed in the lymphocytes (n = 3, p < 0.001). In contrast, no lymphocytes were found in isografts after transplantation (n = 3, p < 0.001). α-enolase expression was increased in lymphocytes, which are implicated in the acute rejection of cardiac transplants. Intragraft α-enolase inhibition may be useful as an adjuvant therapy to systemic immunosuppression in heart transplantation.
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Affiliation(s)
- Jiahai Shi
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
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Zhang A, Mao X, Li L, Tong Y, Huang Y, Lan Y, Jiang H. Necrostatin-1 inhibits Hmgb1-IL-23/IL-17 pathway and attenuates cardiac ischemia reperfusion injury. Transpl Int 2014; 27:1077-85. [PMID: 24810904 DOI: 10.1111/tri.12349] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 01/13/2014] [Accepted: 05/05/2014] [Indexed: 02/02/2023]
Abstract
Ischemia reperfusion (IR) injury is a major issue in cardiac transplantation and inflammatory processes play a major role in myocardial IR injury. Necrostatin-1 (Nec-1) is a small molecule capable of inhibiting RIP1 kinase activity and attenuates inflammation-mediated tissue injury. In our study, hearts of C57Bl/6 mice were flushed and stored in cold Bretschneider solution for 8 h and then transplanted into syngeneic recipients. We found that Nec-1 decreased cardiomyocyte necrosis and recruitment of neutrophils and macrophages. Troponin T (TnT) production on 24 h after myocardial IR injury was reduced by Nec-1 administration. Cardiac output at 60 mmHg of afterload pressure was significantly increased in hearts with Nec-1 administration and the cardiac allograft survival in Nec-1-treated animals was significantly prolonged (MST = 90 days in IR + Nec-1 group, P < 0.05 as compared with IR group, MST = 83.5 days). Nec-1 treatment attenuated ROS generation and increased expression of NOS2 and COX-2. The expression of Hmgb1, IL-23, and IL-17A were also decreased with Nec-1 administration. Furthermore, the decreased TnT expression induced by Nec-1 was abrogated with exogenous Hmgb1 administration. In conclusion, Nec-1 played a protective role in cardiomyocyte IR injury, and this was associated with inhibited Hmgb1-IL-23/IL-17 pathway.
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Affiliation(s)
- Anbin Zhang
- Department of Rheumatology and Immunology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei, China
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42
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Jiang X, Sung YK, Tian W, Qian J, Semenza GL, Nicolls MR. Graft microvascular disease in solid organ transplantation. J Mol Med (Berl) 2014; 92:797-810. [PMID: 24880953 PMCID: PMC4118041 DOI: 10.1007/s00109-014-1173-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 04/29/2014] [Accepted: 05/14/2014] [Indexed: 02/07/2023]
Abstract
Alloimmune inflammation damages the microvasculature of solid organ transplants during acute rejection. Although immunosuppressive drugs diminish the inflammatory response, they do not directly promote vascular repair. Repetitive microvascular injury with insufficient regeneration results in prolonged tissue hypoxia and fibrotic remodeling. While clinical studies show that a loss of the microvascular circulation precedes and may act as an initiating factor for the development of chronic rejection, preclinical studies demonstrate that improved microvascular perfusion during acute rejection delays and attenuates tissue fibrosis. Therefore, preservation of a functional microvasculature may represent an effective therapeutic strategy for preventing chronic rejection. Here, we review recent advances in our understanding of the role of the microvasculature in the long-term survival of transplanted solid organs. We also highlight microvessel-centered therapeutic strategies for prolonging the survival of solid organ transplants.
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Affiliation(s)
- Xinguo Jiang
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA,
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43
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IL-17 promotes Type 1 T cell response through modulating dendritic cell function in acute allograft rejection. Int Immunopharmacol 2014; 20:290-7. [DOI: 10.1016/j.intimp.2014.03.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 02/19/2014] [Accepted: 03/14/2014] [Indexed: 11/19/2022]
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Shen B, Li J, Yang B. NKG2D blockade significantly attenuates ischemia-reperfusion injury in a cardiac transplantation model. Transplant Proc 2014; 45:2513-6. [PMID: 23953572 DOI: 10.1016/j.transproceed.2013.02.126] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 01/02/2013] [Accepted: 02/16/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND NKG2D (natural killer group 2 member D), are activating or coactivating receptor on NK cells, γδ T, and CD8(+) T cells, stimulates cytokine secretion by the former two and plays a costimulatory role for the last CD8(+) T cells. METHODS Male Lewis rat hearts were flushed and stored in cold Bretschneider preservation solution for 8 hours. Anti-NKG2D monoclonal antibody (mAb) was administered before transplantation into syngeneic recipients. Expressions of Troponin-T, myeloperoxidase (MPO), tumor necrosis factor (INF), (ICAM) and interleukin (IL)-17 were examined on days 1, 3, and 7 after reperfusion. RESULTS We observed that isografts from anti-NKG2D mAb-treated animals showed decreased cardiac troponin-T, low expression of MPO, TNF, and ICAM, and superior cardiac output. Furthermore, blockade of NKG2D significantly reduced the number of γδ T cells, which are the main source of IL-17 production. CONCLUSION Blockade of NKG2D significantly attenuated ischemia-reperfusion injury in a cardiac transplantation model. The effect coincided with a low expression of TNFα, ICAM and a reduced number of infiltrating IL-17-producing γδ T cells.
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Affiliation(s)
- B Shen
- Department of Cardiology, Renmin Hospital of Wuhan University, People's Republic of China
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45
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Xia Q, Duan L, Shi L, Zheng F, Gong F, Fang M. High-mobility group box 1 accelerates early acute allograft rejection via enhancing IL-17+ γδ T-cell response. Transpl Int 2014; 27:399-407. [PMID: 24410759 DOI: 10.1111/tri.12264] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 10/31/2013] [Accepted: 01/07/2014] [Indexed: 01/31/2023]
Abstract
Th17 and γδ T cells are the dominant IL-17-producing cell. We previously reported that high-mobility group box 1 (HMGB1) is critical in inducing IL-17-producing alloreactive T cells during early stage of acute allograft rejection. However, the role of γδ T cells during this process and its implication in HMGB1-mediated allograft rejection are not fully understood. Here, we use a murine model of cardiac allograft transplantation to further study the role of HMGB1 and IL-17-producing γδ T cells in acute allograft rejection. It was found that the expression of HMGB1 was increased in allograft, while blockade of HMGB1 suppressed IL-17(+) γδ T-cell response and inhibited the gene transcription of IL-23 and IL-1β. Furthermore, in vitro HMGB1 indirectly promoted the development of IL-17(+) γδ T cells by stimulating dendritic cells to produce IL-23 and IL-1β, meanwhile depletion of γδ T cells in vivo prolonged allograft survival and reduced the level of IL-17 in serum. In conclusion, our findings inferred that increased HMGB1 expression could enhance IL-17(+) γδ T-cell response by promoting the secretion of IL-23 and IL-1β, while IL-17(+) γδ T cells contribute to the early stage of acute allograft rejection.
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Affiliation(s)
- Quansong Xia
- Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zhu H, Cui D, Liu K, Wang L, Huang L, Li J. Long pentraxin PTX3 attenuates ischemia reperfusion injury in a cardiac transplantation model. Transpl Int 2013; 27:87-95. [DOI: 10.1111/tri.12197] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 05/08/2013] [Accepted: 09/13/2013] [Indexed: 12/24/2022]
Affiliation(s)
- Hongfei Zhu
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Dan Cui
- Public Health School; Wuhan University; Wuhan China
| | - Kebin Liu
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Li Wang
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Lili Huang
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Jinjie Li
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
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Chen H, Xia J, Zhang L, Jin X, Yang M, Li J, Zhao Y. NKG2D blockade attenuated cardiac allograft vasculopathy in a mouse model of cardiac transplantation. Clin Exp Immunol 2013; 173:544-52. [PMID: 23638995 DOI: 10.1111/cei.12128] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2013] [Indexed: 12/27/2022] Open
Abstract
A previous paper has reported that blockade of NKG2D was effective in protecting allograft in murine models of cardiac transplantation, but the mechanism of NKG2D blockade on attenuated cardiac allograft vasculopathy (CAV) was still unknown. In our current study, we found that wild-type recipients treated with anti-NKG2D monoclonal antibody (mAb) plus cytotoxic T lymphocyte antigen (CTLA)-4-immunoglobulin (I)g showed prolonged allograft survivals (>90 days, P < 0·001) significantly and attenuated CAV. These in-vivo results correlated with reduced alloantibody production, low expression of interleukin (IL)-17 and IL-6, while infiltration of regulatory T cells increased. IL-6 administration induced shorter allograft survival and higher CAV grade in CTLA-4-Ig plus anti-NKG2D mAb-treated recipients, whereas IL-17 had no significant effect on allograft survival and CAV grade in CTLA-4-Ig plus anti-NKG2D mAb-treated recipients. Furthermore, the prolonged allograft survival induced by NKG2D blockade was abrogated partially with depletion of regulatory T cells. In conclusion, blockade of NKG2D combined with CTLA-4-Ig attenuated CAV and this effect was associated with lower alloantibody production, inhibited IL-6 expression and enhanced expansion of regulatory T cells.
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Affiliation(s)
- H Chen
- Emergency Centre, Zhongnan Hospital, Wuhan University, Wuhan, China
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Zhu H, Li J, Wang S, Liu K, Wang L, Huang L. γδ T Cell Receptor Deficiency Attenuated Cardiac Allograft Vasculopathy and Promoted Regulatory T cell Expansion. Scand J Immunol 2013; 78:44-9. [PMID: 23659436 DOI: 10.1111/sji.12064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 04/15/2013] [Indexed: 12/28/2022]
Affiliation(s)
- H. Zhu
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan; China
| | - J. Li
- Department of Oncology; Wuhan Central Hospital; Wuhan; China
| | - S. Wang
- Department of Cardiovascular Surgery; Union Hospital; Huazhong University of Science and Technology; Wuhan; China
| | - K. Liu
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan; China
| | - L. Wang
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan; China
| | - L. Huang
- Department of Anesthesiology and The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan; China
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Kong FY, Chen W, He SJ, Lin ZM, Li X, Zhang XH, Yang XQ, Zhu FH, Tong XK, Zhou Y, Tang W, Duan WH, Zuo JP. Mycophenolic acid derivative 118 improves outcome of skin grafts by suppressing IL-17 production. Acta Pharmacol Sin 2013; 34:921-9. [PMID: 23645010 DOI: 10.1038/aps.2013.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 02/07/2013] [Indexed: 11/09/2022] Open
Abstract
AIM To investigate the effects and underlying mechanisms of 118, a novel derivative of mycophenolic acid, in a murine allogeneic skin graft model. METHODS Skin grafts were conducted by grafting BALB/c donor tail skin into C57BL/6 skin beds (allograft) or by grafting female C57BL/6 donor tail skin into female C57BL/6 skin beds (syngraft). The mice were treated with the derivative 118 (40 mg·kg(-1)·d(-1), po) for 13 d (3 d before and 10 d after transplantation). Skin grafts, splenocytes and graft-infiltrated lymphocytes were isolated and examined ex vivo. The effects of the derivative 118 on naive CD4(+) T cell differentiation were examined in vitro. RESULTS Treatment with the derivative 118 dramatically increased the survival rate of murine allogeneic skin grafts. Flow cytometric analysis and H&E staining showed that the derivative significantly decreased inflammatory cell infiltration into the grafts. The levels of the chemokines CXCL1, CXCL2, CCL7, and CCL2 were reduced in the derivative 118-treated grafts. Additionally, the derivative 118 significantly suppressed the IL-17 levels in the grafts but did not affect the differentiation of systemic helper T cells in the murine allogeneic skin graft model. Furthermore, IL-23p19 expression was suppressed in the grafts from the derivative 118-treated group, which might be due to decreases in TLR4 and MyD88 expression. Finally, the derivative 118 did not exert direct influences on helper T cell differentiation in vitro. CONCLUSION Treatment with the mycophenolic acid derivative 118 improves murine allogeneic skin grafts by decreasing IL-23 expression and suppressing local IL-17 secretion in the grafts, rather than directly inhibiting Th17 differentiation.
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Hmgb1-TLR4-IL-23-IL-17A Axis Promote Ischemia-Reperfusion Injury in a Cardiac Transplantation Model. Transplantation 2013; 95:1448-54. [DOI: 10.1097/tp.0b013e318293b7e1] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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