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Li Z, Zhao M, Yang Y, Zou Z, Zhang L, Jiang F, Du D, Zhou P. Treatment of a MyD88 inhibitor alleviates rejection and inflammation in xenotransplantation by inhibiting dendritic cells activation and trained immunity in macrophages. Int Immunopharmacol 2024; 130:111664. [PMID: 38377850 DOI: 10.1016/j.intimp.2024.111664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND Acute vascular rejection (AVR) and systemic inflammation in xenograft recipients (SIXR) negatively impact the xenografts survival, and novel immunosuppressants are required to improve survival outcomes. We previously reported that TJ-M2010-5, a myeloid differentiation factor 88 (MyD88) inhibitor, exerts excellent anti-rejection effects in allogeneic transplantation. The aim of the present study was to evaluate the efficacy of TJ-M2010-5 in preventing AVR and SIXR and to investigate whether combined treatment of TJ-M2010-5 with anti-CD154 antibody (MR1) could prolong xenograft survival furthermore. METHODS A model involving heart transplantation from Sprague-Dawley rats to BALB/c mice was established in vivo, and the xenografts developed typical AVR. Bone marrow-derived dendritic cells and macrophages were cultured to study the underlying mechanisms induced by rat cardiomyocyte lysate stimulation in vitro. RESULTS TJ-M2010-5 monotherapy prolonged xenograft survival, although combination treatment with MR1 further enhanced the anti-AVR and anti-SIXR effects with about 21 days graft survival, compared to monotherapy. TJ-M2010-5 reduced dendritic cell and macrophage activation induced by xenotransplantation, downregulated CD80/CD86 expression, suppressed B-cell activation and anti-donor antibody generation, reduced pro-inflammatory cytokine production and tissue factor expression, and attenuated epigenetic modifications underlying interleukin-6 and tumor necrosis factor-α production in macrophages by inhibiting nuclear factor kappa B nuclear translocation. CONCLUSIONS TJ-M2010-5 attenuated AVR and SIXR and contributed to xenograft survival by inhibiting dendritic cell and macrophage activation. A dual-system inhibition strategy combining TJ-M2010-5 with anti-CD154 antibody achieved better results in xenotransplantation.
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Affiliation(s)
- Zeyang Li
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Minghui Zhao
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yang Yang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhimiao Zou
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Limin Zhang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Fengchao Jiang
- Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dunfeng Du
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, China.
| | - Ping Zhou
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, China.
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Zhu J, Inomata T, Nakamura M, Fujimoto K, Akasaki Y, Fujio K, Yanagawa A, Uchida K, Sung J, Negishi N, Nagino K, Okumura Y, Miura M, Shokirova H, Kuwahara M, Hirosawa K, Midorikawa-Inomata A, Eguchi A, Huang T, Yagita H, Habu S, Okumura K, Murakami A. Anti-CD80/86 antibodies inhibit inflammatory reaction and improve graft survival in a high-risk murine corneal transplantation rejection model. Sci Rep 2022; 12:4853. [PMID: 35318419 PMCID: PMC8941080 DOI: 10.1038/s41598-022-08949-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/15/2022] [Indexed: 12/27/2022] Open
Abstract
We investigated the effects of anti-CD80/86 antibodies in a murine high-risk corneal transplantation rejection model. A mixed lymphocyte reaction (MLR) assay was conducted with anti-CD80/86 antibodies. Inflammatory cytokine levels in the culture supernatant were measured using an enzyme-linked immunosorbent assay. Interferon (IFN)-γ-producing CD4+ T cell frequencies in the MLR were assessed using flow cytometry. In vivo, high-risk corneal allograft survival and IFN-γ-producing CD4+ T cell frequencies in corneal grafts were assessed with intraperitoneal injection of anti-CD80/86 antibodies compared to phosphate-buffered saline (PBS). RNA-sequencing was performed on corneal grafts 2 weeks post-transplantation. Anti-CD80/86 antibodies significantly decreased T-cell proliferation, IFN-γ+-producing CD4+ T cell frequencies, and IFN-γ, interleukin (IL)-1β, IL-2, IL-10, and tumor necrosis factor-α production in the MLR compared to PBS injection. Intraperitoneal injection of anti-CD80/86 antibodies significantly prolonged corneal graft survival and decreased IFN-γ+-producing CD4+ T cell frequencies compared to PBS injection. Gene set enrichment analysis showed that the gene sets mainly enriched in the control group were related to allograft rejection and inflammatory response compared to PBS injection. Anti-CD80/86 antibodies significantly prolonged corneal graft survival by inhibiting T-cell proliferation and inflammatory response.
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Affiliation(s)
- Jun Zhu
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Ophthalmology, Subei People's Hospital Affiliated to Yangzhou University, Yangzhou, Jiangsu, China
| | - Takenori Inomata
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. .,Department of Strategic Operating Room Management and Improvement, Juntendo University Graduate School of Medicine, Tokyo, Japan. .,Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan. .,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Masahiro Nakamura
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Precision Health, Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Keiichi Fujimoto
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yasutsugu Akasaki
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kenta Fujio
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ai Yanagawa
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Koichiro Uchida
- Center for Immune Therapeutics and Diagnosis, Juntendo University, Tokyo, Japan
| | - Jaemyoung Sung
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Naoko Negishi
- Atopy Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Indoor Environment Neurophysiological Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ken Nagino
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuichi Okumura
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Strategic Operating Room Management and Improvement, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Maria Miura
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hurramhon Shokirova
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Mizu Kuwahara
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kunihiko Hirosawa
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akie Midorikawa-Inomata
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Atsuko Eguchi
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tianxiang Huang
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hideo Yagita
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Sonoko Habu
- Atopy Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ko Okumura
- Center for Immune Therapeutics and Diagnosis, Juntendo University, Tokyo, Japan
| | - Akira Murakami
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Mach P, Köninger A, Reisch B, Kimmig R, Gellhaus A. Soluble PD-L1 and B7-H4 serum levels during the course of physiological pregnancy. Am J Reprod Immunol 2022; 87:e13519. [PMID: 34974633 DOI: 10.1111/aji.13519] [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: 09/07/2021] [Revised: 11/04/2021] [Accepted: 12/28/2021] [Indexed: 11/30/2022] Open
Abstract
PROBLEM The aim of this study was to evaluate the soluble programmed death-ligand (sPD-L1) and soluble B7-H4 (sB7-H4) serum concentration levels longitudinal throughout the three trimesters of uncomplicated pregnancies. METHOD OF THE STUDY: sPD-L1 and sB7-H4 levels were determined with enzyme-linked immunosorbent assay (ELISA). The patients (n = 26) were divided into three groups according to the pregnancy trimester. Among 26 women involved in the study 14 had longitudinal sB7-H4 and sPD-L1 measurements in each trimester of pregnancy. RESULTS During the course of pregnancy, the sB7-H4 blood serum levels were significant higher in second trimester than in first and third trimester, whereas sPD-L1 levels increased significantly over the course of pregnancy. CONCLUSION The highest serum levels of sPD-L1 in the third trimester suggest increasing suppression of maternal immunity throughout pregnancy, whereas elevated sB7-H4 concentration levels in second trimester suggests different profile of T-cell regulation in physiological pregnancy.
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Affiliation(s)
- Pawel Mach
- Department of Obstetrics and Gynecology, University Hospital of Essen, Essen, Germany
| | - Angela Köninger
- Department of Obstetrics and Gynecology, University of Regensburg, Hospital of the Barmherzige Brueder, Clinic St Hedwig, Regensburg, Germany
| | - Beatrix Reisch
- Department of Obstetrics and Gynecology, University Hospital of Essen, Essen, Germany
| | - Rainer Kimmig
- Department of Obstetrics and Gynecology, University Hospital of Essen, Essen, Germany
| | - Alexandra Gellhaus
- Department of Obstetrics and Gynecology, University Hospital of Essen, Essen, Germany
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Costa C, Pizzolato MC, Shen Y, Wang Y, Fodor WL. CD86 Blockade in Genetically Modified Porcine Cells Delays Xenograft Rejection by Inhibiting T-Cell and NK-Cell Activation. Cell Transplant 2017; 13:75-87. [PMID: 15040608 DOI: 10.3727/000000004772664923] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Porcine xenografts transplanted into primates are rejected in spite of immunosuppression. Identification of the triggering mechanisms and the strategies to overcome them is crucial to achieve long-term graft survival. We hypothesized that porcine CD86 (pCD86) contributes to xenograft rejection by direct activation of host T cells and NK cells. Formerly, we designed the human chimeric molecule hCD152-hCD59 to block pCD86 in cis. To test the efficacy in vivo, we have utilized a pig-to-mouse xenotransplant model. First, we showed that hCD152-hCD59 expression prevents the binding of murine CD28Ig to pCD86 on porcine aortic endothelial cells (PAEC) and dramatically reduces IL-2 secretion by Con A-stimulated mouse splenocytes in coculture. Moreover, IFN-γ secretion by IL-12-stimulated mouse NK cells was averted after coculture with hCD152-hCD59 PAEC. In vivo, control PAEC implanted under the kidney capsule were rapidly rejected (2–4 weeks) in BALB/c and BALB/c SCID mice. Rejection of hCD152-hCD59 PAEC was significantly delayed in both cases. Signs of immune modulation in the hCD152-hCD59-PAEC BALB/c recipients were identified such as early hyporesponsiveness and diminished antibody response. Thus, simply modifying the donor xenogeneic cell can diminish both T cell and NK cell immune responses. We specifically demonstrate that pCD86 contributes to rejection of porcine xenografts.
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MESH Headings
- Animals
- Antigens, CD/analysis
- Antigens, CD/blood
- Antigens, CD/immunology
- Antigens, Differentiation/analysis
- Aorta
- B7-2 Antigen
- CD59 Antigens/analysis
- CTLA-4 Antigen
- Coculture Techniques
- Concanavalin A
- Endothelium, Vascular/immunology
- Endothelium, Vascular/pathology
- Endothelium, Vascular/transplantation
- Graft Rejection/immunology
- Graft Rejection/prevention & control
- Humans
- Interleukin-2/metabolism
- Kidney Transplantation/immunology
- Kidney Transplantation/pathology
- Killer Cells, Natural/immunology
- Lymphocyte Activation/immunology
- Membrane Glycoproteins/blood
- Membrane Glycoproteins/immunology
- Mice
- Mice, Inbred BALB C
- Mice, SCID
- Swine
- T-Lymphocytes/immunology
- Transplantation, Heterologous/immunology
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Affiliation(s)
- Cristina Costa
- Department of Molecular Science, Alexion Pharmaceuticals Inc., 352 Knotter Drive, Cheshire, CT 06410, USA.
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Huey DJ, Sanchez-Adams J, Willard VP, Athanasiou KA. Immunogenicity of bovine and leporine articular chondrocytes and meniscus cells. Tissue Eng Part A 2011; 18:568-75. [PMID: 21942992 DOI: 10.1089/ten.tea.2011.0226] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Immune rejection is a major concern for any allogeneic or xenogeneic graft. For in vivo investigations of cartilage tissue engineering strategies, small animal models such as the leporine model are commonly employed. Many studies report little to no immune rejection upon allogeneic or xenogeneic implantation of native articular and meniscal cartilages. This study investigated whether bovine and leporine articular chondrocytes (ACs) and meniscus cells (MCs) have immunoprivileged characteristics because of their ability to stimulate proliferation of leporine peripheral blood mononuclear cells (PBMCs) in vitro. After 6 days of co-culture, none of the cell types caused a proliferative response in the leporine PBMCs, indicating that these cells may not elicit immune rejection in vivo. Reverse transcriptase polymerase chain reaction analysis for major histocompatibility complex class (MHC) I and II and costimulation factors CD80 and CD86 revealed that all cell types produced messenger RNA for MHC I and II, but only some were CD80 or CD86 positive, and none were positive for both costimulation factors. Flow cytometry found that bovine MCs and ACs displayed MHC II (MCs: 32.5%, ACs: 14.4%), whereas only leporine ACs were MHC II positive (7.5%). Although present in isolated cells, MHC I and II were not observed in intact bovine or leporine hyaline cartilage or meniscus tissues. Despite some presence of MHC II and costimulation factors, none of the cell types studied were able to cause PBMC proliferation. These findings indicate that bovine and leporine MCs and ACs share a similar immunoprivileged profile, bolstering their use as allogeneic and xenogeneic cell sources for engineered cartilage.
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Affiliation(s)
- Daniel J Huey
- Department of Bioengineering, Rice University, Houston, Texas, USA
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Wang WJ, Hao CF, Lin QD. Dysregulation of macrophage activation by decidual regulatory T cells in unexplained recurrent miscarriage patients. J Reprod Immunol 2011; 92:97-102. [PMID: 22015003 DOI: 10.1016/j.jri.2011.08.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 07/04/2011] [Accepted: 08/11/2011] [Indexed: 10/16/2022]
Abstract
CD4(+)CD25(+) T cells (Treg cells) and macrophages play roles in the maintenance of maternal-fetal immunological tolerance. Treg cells suppress the function of macrophages via mechanisms mediated by cell-cell contact and production of soluble factors. The purpose of this study was to investigate regulation of macrophages by Treg cells within decidua from patients with unexplained recurrent miscarriage (RM) and normal control women during early pregnancy. Treg cells and macrophages were isolated from deciduas of unexplained RM (n=15) and control women (n=15) by magnetic cell separation and co-cultured for six days. Regulation of macrophages by Treg cells was assessed in the presence and absence of neutralizing anti-TGFβ antibodies and in transwell experiments. Expression of CD80, CD86, IL10, and IFNγ by macrophages was measured by flow cytometry or ELISA. Macrophage expression of CD80 and CD86 was higher in deciduas of unexplained RM patients compared with controls whereas the expression of IL10 was lower. There was no difference in the expression of IFNγ by macrophages between the two groups. Treg cells inhibited macrophage expression of CD80, CD86 and IFNγ and increased the expression of IL10. The regulatory effects of Treg cells were abrogated in the presence of neutralizing anti-TGFβ antibodies or by transwell culture. The phenotype of macrophages therefore differed in unexplained RM patients compared with normal early pregnant subjects. Macrophage regulation by Treg cells was shown to be mediated by cell-cell contact and TGFβ and this capacity was decreased in unexplained RM patients.
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Affiliation(s)
- Wen-Juan Wang
- Reproduction Medical Center, Yantai Yuhuangding Hospital, Qingdao University School of Medicine, Yantai 264000, China.
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Jin LP, Fan DX, Zhang T, Guo PF, Li DJ. The costimulatory signal upregulation is associated with Th1 bias at the maternal-fetal interface in human miscarriage. Am J Reprod Immunol 2011; 66:270-8. [PMID: 21481059 DOI: 10.1111/j.1600-0897.2011.00997.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
PROBLEM To evaluate whether the association of the costimulatory signal regulation with T helper 1/T helper 2 (Th1/Th2) bias at maternal-fetal interface in human pregnancy loss. METHOD OF STUDY The expression of CD80 and CD86 in decidual tissues and CD28 and cytotoxic T-lymphocyte antigen-4 (CTLA-4) in the decidual T cells was compared between normal early pregnancy and miscarriage by qPCR and Western blot. The cytokine production in decidual T cells was performed by flow cytometry. The correlation of costimulatory molecule expression with Th1/Th2 cytokines was analyzed. RESULTS The CD80 mRNA and protein expression showed no significant difference between normal pregnancy and miscarriage. An increase in the expression of CD28 and CD86 was accompanied by a decrease in the expression of CTLA-4 in miscarriage in comparison with the early pregnancy. The higher expression of interleukin (IL)-2 and interferon-γ (IFN-γ), and lower expression of IL-4 and IL-10 in the decidual T cells were present in miscarriage. A correlation analysis showed a significant positive correlation of CD86 and CD28 expression with the Th1 cytokine production (IL-2 and IFN-γ), a significant negative correlation of CTLA-4 expression with the Th1 cytokine production. CONCLUSION The upregualtion of costimulatory signals on T cells might form an abnormal immune microenvironment, a shift to Th1 responses, at maternal-fetal interface, which leads to human miscarriage.
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Affiliation(s)
- Li-Ping Jin
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Fudan University Shanghai Medical College, China
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Jin LP, Fan DX, Li DJ. Regulation of costimulatory signal in maternal-fetal immune tolerance. Am J Reprod Immunol 2011; 66:76-83. [PMID: 21276120 DOI: 10.1111/j.1600-0897.2010.00982.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
A pregnancy is associated with modifications in the immune status of the mother, but the mechanisms are not well understood. Several observations have indicated that CD28/CTLA-4 and B7-1/B7-2 are involved in the maternal-fetal immune regulation. This review aims to recapitulate our current knowledge concerning the role of CD28/CTLA-4 and B7-1/B7-2 in maternal-fetal immune regulation. Several studies suggest that up-regulation of B7-2 and/or CD28 and/or down-regulation of CTLA-4 are correlated with the occurrence of pregnancy loss. Therefore, an accurate expression of costimulatory molecules at the maternal-fetal interface may ensure that the decidual cells do not elicit a 'danger' signal to the maternal immune system, perhaps instead contributing to the establishment of immune tolerance in vivo. It is showed that costimulation blockade with anti-B7 mAbs results in altered allogeneic T-cell response and overcomes increased maternal rejection to the fetus, which improves fetus growth in the abortion-prone system. These findings suggest that the anti-B7-treated T cells not only function as potent suppresser cells but also exert immunoregulatory effect on the maternal T cells. This procedure might be potentially useful to immunotherapy for human recurrent spontaneous abortion.
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Affiliation(s)
- Li-Ping Jin
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Fudan University Shanghai Medical College, Shanghai, China
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10
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Gock H, Murray-Segal L, Salvaris E, Fisicaro N, Cowan PJ, d'Apice AJF. Cardiac and Skin Xenograft Survival in Different Recipient Mouse Strains. Transplantation 2006; 82:1362-9. [PMID: 17130786 DOI: 10.1097/01.tp.0000242525.75138.e0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND There are conflicting reports on the importance of antibody and cell-mediated mechanisms and the influence of TH1 or TH2 cytokines on acute vascular xenograft rejection. We sought to resolve some of the recent discrepancies in the rat-to-mouse xenograft model where different recipient strains are used and investigated the TH1/TH2 influence on rejection. METHODS Lewis rat heart xenograft survival was compared between BALB/c and C57BL/6 recipients. Antigraft antibody deposition, serum anti-rat antibody levels and B-cell deficient recipients were used to examine the contribution of antibody to rejection. To further investigate a TH1 or TH2 bias effect in vivo, we used BALB/c STAT4 knockout (KO) and STAT6 KO recipient mice. Experiments were repeated with rat skin xenografts to examine TH1/TH2 influences on cell-mediated rejection. RESULTS The median survival (MS) of rat heart xenografts in BALB/c and C57BL/6 mice was five and eight days, respectively (P = 0.002). The MS in B-cell deficient mice was 16 days (P < 0.001). The MS in STAT4 KO and STAT6 KO mice was six and seven days respectively (P = 0.009). All non-B-cell deficient recipients showed strong IgM deposition and histological features of both cellular and antibody-mediated rejection. There was no correlation between serum anti-rat antibody levels and graft outcome or graft deposition. There was no survival difference of skin xenografts in BALB/c, C57BL/6, B-cell deficient, STAT6 KO, or STAT4 KO mice (8-9 days). CONCLUSIONS Both humoral and cell-mediated immunity have significant roles in vascularized heart xenograft rejection. TH1/TH2 biases minimally affect rejection through humoral but not cellular immunity.
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Affiliation(s)
- Hilton Gock
- Immunology Research Centre, University of Melbourne, St. Vincent's Hospital, Melbourne, Australia
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11
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Jin LP, Zhou YH, Zhu XY, Wang MY, Li DJ. Adoptive Transfer of Paternal Antigen-Hyporesponsive T Cells Facilitates a Th2 Bias in Peripheral Lymphocytes and at Materno-Fetal Interface in Murine Abortion-prone Matings. Am J Reprod Immunol 2006; 56:258-66. [PMID: 16938115 DOI: 10.1111/j.1600-0897.2006.00425.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
PROBLEM To investigate the Th1/Th2 cytokine changes in abortion-prone recipient mice adoptively transferred by the paternal antigen-hyporesponsive T cells. METHOD OF STUDY The paternal antigen-hyporesponsive T cells were generated by the anti-B7 monoclonal antibody (mAb) treatment and adoptively transferred into pregnant CBA/J mice of abortion-prone matings on day 4 of gestation. The intracellular expressions of Th1 cell-derived cytokine, tumor necrosis factor-alpha, gamma-interferon and interleukin-2 (IL-2) and Th2 cell-derived cytokine, IL-4 and IL-10 in the maternal spleen were analyzed by flow cytometry, and secretions of the Th1 and Th2 cytokines in supernatant of the feto-placental unit culture were analyzed by an enzyme-linked immunosorbent assay. RESULTS Our findings showed the increased secretion of Th1 cytokines and the decreased secretion of Th2 cytokines in abortion-prone matings. Treatment with anti-B7 mAbs on day 4 of gestation enhanced Th2 and reduced Th1 cytokine production in abortion-prone matings. Similarly, adoptive transfer of paternal antigen-hyporesponsive T cells induced maternal tolerance to the fetus and displayed a Th2 bias both in the peripheral lymphocytes and at the materno-fetal interface of the abortion-prone matings. CONCLUSIONS These findings indicate that the Th2 cytokine bias and an increase in fetal viability induced by the anti-B7 mAb treatment can be transferred to other pregnant mice of the abortion-prone matings.
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Affiliation(s)
- Li-Ping Jin
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics & Gynecology, Shanghai Medical College, Fudan University, Shanghai 200011, China
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12
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Hosiawa KA, Wang H, DeVries ME, Garcia B, Jiang J, Zhou D, Cameron MJ, Zhong R, Kelvin DJ. Regulation of B- and T-cell Mediated Xenogeneic Transplant Rejection by Interleukin 12. Transplantation 2006; 81:265-72. [PMID: 16436971 DOI: 10.1097/01.tp.0000196725.53277.60] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Xenotransplantation may provide a solution to the increasing shortage of donor organs. Acute vascular rejection and cell-mediated rejection remain the primary barriers to successful xenotransplantation. In animal models where acute vascular rejection can be attenuated, xenografts succumb to cell-mediated rejection. The mechanisms of acute vascular rejection and cell-mediated rejection are poorly understood. METHODS Using a heterotopic rat-to-mouse cardiac transplantation model, we demonstrate that IL-12p40 attenuates both allogeneic and xenogeneic acute vascular rejection pathology by suppressing B-cell activation and anti-rat isotype switching. To study the mechanism of xenogeneic cell-mediated rejection, we use B-cell deficient mice that only develop cell-mediated rejection pathology. To elucidate the role of IL-12 in cell-mediated rejection, we generated B cell/ IL-12p40 double knockout mice. RESULTS We demonstrate that xenogeneic cell-mediated rejection is mediated by CD4+ T cells, and is accompanied by elevated FasL and granzyme mRNA expression. Strikingly, by generating B cell/IL-12p40 double knockout mice, we demonstrate that xenogeneic cell-mediated rejection is IL-12p40 dependent. In contrast, we demonstrate that allogeneic cellular rejection is IL-12p40 independent. CONCLUSIONS We conclude that IL-12 plays a dual role in xenotransplantation by driving xenogeneic CD4+ T cell responses but suppressing both allogeneic and xenogeneic B cell responses. Therefore, the mechanism of allogeneic and xenogeneic transplantation rejection is differentially regulated by IL-12.
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Affiliation(s)
- Karoline A Hosiawa
- Division of Experimental Therapeutics, University Health Network, Toronto General Research Institute, Toronto, Ontario, Canada
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Hosiawa KA, Wang H, DeVries ME, Garcia B, Liu W, Zhou D, Akram A, Jiang J, Sun H, Cameron MJ, Zhong R, Kelvin DJ. CD80/CD86 costimulation regulates acute vascular rejection. THE JOURNAL OF IMMUNOLOGY 2005; 175:6197-204. [PMID: 16237117 DOI: 10.4049/jimmunol.175.9.6197] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Xenotransplantation may provide the only solution to the shortage of human donor organs. Although hyperacute rejection associated with xenotransplantation can now be overcome, acute vascular rejection (AVR) remains a primary barrier to xenotransplantation. To date, standard immunosuppressive agents fail to block AVR or prolong xenograft survival. The present study was undertaken to determine the role of CD80/CD86 costimulatory molecules in regulating AVR. Lewis rat hearts were transplanted heterotopically into wild-type or IL-12, CD80- or CD86-deficient C57BL/6 mice. Wild-type recipients were treated with CD80 or CD86 neutralizing Ab with and without daily cyclosporin A (CsA, 15 mg/kg). Transplanted hearts in untreated wild-type recipients were rejected on postoperative days (POD) 17-21 and showed cell-mediated rejection (CMR) and AVR pathologies. In contrast, transplanted hearts in IL-12 and CD80 recipients or wild-type recipients treated with CD80 neutralizing Ab were rapidly rejected on POD 5 and 6 with AVR pathology. Interestingly, hearts transplanted into CD86 knockout recipients or wild-type recipients treated with CD86 neutralizing Ab underwent CMR on POD 17. Finally, blockade of CD86 but not CD80 rendered xenograft recipients sensitive to daily CsA therapy, leading to indefinite xenograft survival. To conclude, we demonstrate that AVR can be overcome by blocking the CD86 costimulatory pathway. Furthermore, we demonstrate that CD80 and CD86 have opposing roles in regulation of xenotransplantation rejection, where CD80 drives CMR and attenuates AVR while CD86 drives AVR. Most strikingly, indefinite xenograft survival can be achieved by suppressing AVR with CD86 neutralization in combination of CsA therapy, which inhibits CMR.
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Affiliation(s)
- Karoline A Hosiawa
- Division of Experimental Therapeutics, University Health Network, Toronto General Research Institute, Toronto General Hospital, Toronto, Ontario, Canada
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14
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Jin LP, Zhou YH, Wang MY, Zhu XY, Li DJ. Blockade of CD80 and CD86 at the time of implantation inhibits maternal rejection to the allogeneic fetus in abortion-prone matings. J Reprod Immunol 2005; 65:133-46. [PMID: 15811518 DOI: 10.1016/j.jri.2004.08.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2004] [Revised: 08/05/2004] [Accepted: 08/11/2004] [Indexed: 11/24/2022]
Abstract
CD28/CTLA-4 interactions with their specific B7-ligands (CD80 and CD86) play a decisive role in antigenic and allogenic responses. Recently, experimental transplant studies demonstrated that donor-specific tolerance was achieved by blocking these interactions. However, the role of blockade of CD28/B7 costimulatory pathway in the maintenance of materno-fetal tolerance has received little attention. In the present study, abortion-prone CBA/J females mated with DBA/2 males were administered with anti-CD80 and anti-CD86 monoclonal antibodies (mAbs) on day 4 of gestation (time of murine implantation). We demonstrated that the combined use of anti-CD80 and anti-CD86 mAbs induced maternal tolerance to the fetus in the abortion-prone CBA/J mice, and displayed expansion of the maternal CD4(+)CD25+ regulatory T cell population and up-regulated expression of CTLA-4, suggesting an active mechanism of regulatory T cells in suppressing maternal rejection to the fetus. In addition, the anti-CD80/86 mAbs treatment enhanced Th2 and reduced Th1 cytokine production in mice, implying that the development of Th2 cells might contribute to maternal tolerance to her fetus. Together, these findings indicated that blocking CD80 and CD86 enhanced maternal tolerance to her fetus in mice by increasing regulatory T cell function and skewing toward a Th2 response. Our data might provide an enhanced understanding of the maternal-fetal immune relationship and be helpful in clinical trials for immunotherapy of recurrent spontaneous abortion.
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Affiliation(s)
- Li-Ping Jin
- Laboratory for Reproductive Immunology, Institute of Obstetrics and Gynecology, Fudan University, 419 Fangxie Road, Shanghai 200011, China
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15
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Singbartl K, Bockhorn SG, Zarbock A, Schmolke M, Van Aken H. T cells modulate neutrophil-dependent acute renal failure during endotoxemia: critical role for CD28. J Am Soc Nephrol 2005; 16:720-8. [PMID: 15689402 DOI: 10.1681/asn.2004050381] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Sepsis still represents a leading cause of acute renal failure (ARF). Both lymphocytes and neutrophils (PMN) have been proposed as crucial mediators during sepsis. For further elucidation of the mechanisms of interactions between them, a murine model of LPS-induced ARF was used. In wild-type mice (WT), LPS administration led to a strong influx of PMN into the kidney (2.8-fold greater renal myeloperoxidase activity after 24 h) and to severe ARF (3.3-fold higher plasma creatinine concentrations after 24 h). By contrast, mice that were gene deficient for CD28 (CD28(-/-)), a co-stimulatory molecule for T cell activation, exhibited only minor renal dysfunction (50% protection compared with WT) and almost no PMN recruitment. When PMN(-) depleted, both WT and CD28(-/-) developed only mild ARF, similar to untreated CD28(-/-). Flow cytometry demonstrated that CD28 was vastly expressed on CD3(+) cells but not on PMN. Injecting wild-type CD3(+) cells into CD28(-/-) before LPS injection abolished the protection seen before. At baseline, both WT and CD28(-/-) displayed similar plasma concentrations of keratinocyte-derived chemokine (KC), a growth-related oncogene 1 gene product and PMN-specific chemokine. As opposed to WT, CD28(-/-) showed a greatly attenuated increase in plasma KC 4 h after LPS (2.5- versus 138.5-fold over controls, respectively). Moreover, CD28(-/-) showed less intense upregulation of renal growth-related oncogene 1 mRNA expression. Immunohistochemistry revealed considerable PMN but no T cell infiltrates in the kidney after LPS injection. In a PMN-dependent model of endotoxemic ARF, T cells, via the CD28 pathway, modulate kidney function and renal PMN recruitment. The effect on PMN is a remote one and presumably due to altered expression of PMN-specific chemokines.
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Affiliation(s)
- Kai Singbartl
- Klinik und Poliklinik für Anästhesiologie und operative Intensivmedizin, Universitätsklinikum Münster, Albert Schweitzer Strasse 33, 48129 Münster, Germany.
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16
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Jin LP, Li DJ, Zhang JP, Wang MY, Zhu XY, Zhu Y, Meng Y, Yuan MM. Adoptive Transfer of Paternal Antigen-Hyporesponsive T Cells Induces Maternal Tolerance to the Allogeneic Fetus in Abortion-Prone Matings. THE JOURNAL OF IMMUNOLOGY 2004; 173:3612-9. [PMID: 15356105 DOI: 10.4049/jimmunol.173.6.3612] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The embryo expresses paternal Ags foreign to the mother and therefore has been viewed as an allograft. It has been shown that anergic T cells generated by blocking of the CD28/B7 costimulatory pathway with anti B7-1 and anti B7-2 mAbs can be transferred as suppresser cells to prevent allograft rejection. Little is known, however, about the in vivo function of anti-B7-treated T cells after their transfer into abortion-prone mice in the maintenance of materno-fetal tolerance. In the present study, abortion-prone CBA/J females mated with DBA/2 males were administered anti-B7-1 and anti-B7-2 mAbs on day 4 of gestation (murine implantation window). The anti-B7-treated T cells subsequently were adoptively transferred into abortion-prone CBA/J mice. We demonstrated that costimulation blockade with anti-B7 mAbs at the time of implantation resulted in altered allogeneic T cell response and overcame increased maternal rejection to the fetus in the CBA/JxDBA/2 system. The transferred anti-B7-treated T cells appeared to be regulatory, decreasing responsiveness and generating clonal deviation in maternal recipient T cells. The transferred CFSE-labeled T cells were found to reside in the spleen and uterine draining lymph nodes, and a few were localized to the materno-fetal interface of the maternal recipient. Our findings suggest that the anti-B7-treated T cells not only function as potent suppresser cells, but also exert an immunoregulatory effect on the maternal recipient T cells, which cosuppresses maternal rejection to the fetus. This procedure might be considered potentially useful for fetal survival when used as an immunotherapy for human recurrent spontaneous abortion.
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Affiliation(s)
- Li-Ping Jin
- Laboratory for Reproductive Immunology, Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, China
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17
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Singh NP, Guo L, Que X, Shirwan H. Blockade of indirect recognition mediated by CD4+ T cells leads to prolonged cardiac xenograft survival. Xenotransplantation 2004; 11:33-42. [PMID: 14962291 DOI: 10.1111/j.1399-3089.2004.00079.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The T-cell response to xenografts is induced by direct and indirect recognition of xenoantigens. Although the importance of indirect recognition is well established in vitro, the contribution of this pathway to xenograft rejection in vivo remains to be fully elucidated. We herein investigated the direct contribution of indirect recognition to cardiac xenograft rejection in the rat-to-mouse (PVG.R8-to-C57BL/10) concordant model. Rat xenoantigens invoked a vigorous proliferative response in mouse T cells harvested from naïve or graft recipients at rejection. Indirect recognition predominated the response, as antibodies against mouse class II I-A(b), CD80, or CD86 molecules significantly (45 to 60%) blocked the proliferative response. Importantly, the blockade of indirect recognition in vivo by treating the graft recipients with a monoclonal antibody (mAb) against class II I-A(b) molecule on days 0, 1, and 3 post-transplantation resulted in significant (P < 0.009) prolongation of cardiac xenograft survival (Mean Survival Time (MST) >94 +/- 55 days vs. 7 +/- 0.8 days for controls). In contrast, treatment of recipients with a mAb against mouse class I H-2K(b)/D(b) molecules did not significantly affect graft rejection (MST = 8 +/- 1 days). These results demonstrate that indirect recognition mediated by CD4(+) T cells plays a critical role in the rejection of cardiac grafts in the rat-to-mouse xenogeneic model.
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Affiliation(s)
- Narendra P Singh
- Institute for Cellular Therapeutics, University of Louisville, KY 40202, USA
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Rulifson IC, Szot GL, Palmer E, Bluestone JA. Inability to induce tolerance through direct antigen presentation. Am J Transplant 2002; 2:510-9. [PMID: 12118894 DOI: 10.1034/j.1600-6143.2002.20604.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Both the direct and indirect antigen presentation pathways are important mechanisms for T cell-mediated allograft rejection. Studies using knockout mice and monoclonal antibodies have demonstrated that CD4+ T cells are both necessary and sufficient for the rejection of allogeneic tissues, including skin, heart, and islet. Furthermore, combined blockade of the CD28/B7 and CD154/CD40 costimulatory pathways induces tolerance in multiple CD4+ T-cell dependent allograft models. In this study, we addressed the T-cell requirement for costimulation in direct antigen presentation. We demonstrated that class II-specific alloreactive T-cell receptor transgenic T cells were sufficient to mediate allograft rejection independent of costimulatory blockade. Analysis of the costimulatory capacity of different antigen presenting cell (APC) populations demonstrated that APCs resident within the donor skin, Langerhans cells, are potent stimulators not requiring CD28- or CD154-dependent costimulation for direct major histocompatibility complex (MHC) antigen presentation. These results complement previous work examining the role of costimulation on CD8+ T cells, supporting a model in which the effectiveness of costimulatory blockade in the setting of transplantation may be selective for the indirect pathway of MHC alloantigen presentation.
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Affiliation(s)
- Ingrid C Rulifson
- UCSF Diabetes Center, University of California, San Francisco 94143-0540, USA
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Kagaya F, Hori J, Kamiya K, Kaji Y, Oshika T, Amano S, Yamagami S, Tsuru T, Tanaka S, Matsuda H, Yagita H, Okumura K. Inhibition of murine corneal allograft rejection by treatment with antibodies to CD80 and CD86. Exp Eye Res 2002; 74:131-9. [PMID: 11878826 DOI: 10.1006/exer.2001.1109] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The purpose of this study was to investigate the role of CD80 and CD86 costimulatory molecules in corneal allograft rejection. Anti-CD80 and anti-CD86 monoclonal antibodies (mAbs) were administered after orthotopic corneal allograft transplantation. Graft rejection was observed by biomicroscopy. Population and localization of CD80(+)and CD86(+)cells in the cornea, cervical lymph nodes, and spleen were examined by flow cytometry and immunohistochemistry. The combined use of anti-CD80 and anti-CD86 mAbs was effective in prolonging corneal allograft survival. In the untreated mice bearing rejected graft, many CD86(+)and CD80(+)cells were found around the host-graft junctional area in the cornea, and CD86(high)cells were found in the cervical lymph node and spleen. In contrast, few CD86(+)or CD80(+)cells were observed in the cornea, cervical lymph node, and spleen from the mice treated with anti-CD80/CD86 mAbs. These results demonstrated a significant role of CD80 and CD86 costimulatory molecules in corneal allograft rejection.
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Affiliation(s)
- Fumie Kagaya
- Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan
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20
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Jurcevic S, Chandler P, Sacks SH, Simpson E. Rapid rejection of HLA-A2 transgenic skin graft due to indirect allorecognition. Transplantation 2001; 72:994-7. [PMID: 11579290 DOI: 10.1097/00007890-200109270-00003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND At present, it is not clear whether xenogeneic MHC molecules are recognized by T cells directly or indirectly through self-MHC-restricted presentation in a transplantation setting. METHODS We have transplanted skin from HLA-A2 transgenic (B6.A2) to nontransgenic C57BL/6 (B6) mice and investigated the subsequent mouse T-cell responses to HLA molecules, in vivo and in vitro. RESULTS Skin transplanted from transgenic B6.A2 to B6 mice was rejected rapidly, in 12-16 days. Although naive B6 mice did not respond to B6.A2 splenocytes in vitro, spleen cells from mice that underwent transplantation showed strong proliferative responses. An anti-B6.A2 T-cell line from mice that underwent transplantation made proliferative responses to B6.A2 splenocytes but did not recognize HLA-A2 on human cells or transfected allogeneic mouse cells. The indirect, self-H-2-restricted recognition of HLA-A2 implied by this was confirmed by the finding that lysates of HLA-A2-positive, but not HLA-A2-negative, human B cells were stimulatory when pulsed onto syngeneic antigen-presenting cells and by inhibition of anti-B6.A2 proliferation with both anti-mouse MHC class I and class II antibodies. CONCLUSION Our results suggest that indirect recognition of xenogeneic MHC antigen plays a predominant role in graft rejection.
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Affiliation(s)
- S Jurcevic
- Department of Nephrology & Transplantation, King's College, Guy's, King's and St. Thomas' Medical School, Guy's Hospital, London SE1 9RT, UK.
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Gordon EJ, Woda BA, Shultz LD, Rossini AA, Greiner DL, Mordes JP. Rat xenograft survival in mice treated with donor-specific transfusion and anti-CD154 antibody is enhanced by elimination of host CD4+ cells. Transplantation 2001; 71:319-27. [PMID: 11213080 DOI: 10.1097/00007890-200101270-00026] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Treatment with a donor-specific transfusion (DST) and a brief course of anti-mouse CD154 (anti-CD40-ligand) monoclonal antibody (mAb) prolongs the survival of both allografts and rat xenografts in mice. The mechanism by which allograft survival is prolonged is incompletely understood, but depends in part on the presence of CD4+ cells and the deletion of alloreactive CD8+ T cells. Less is known about the mechanism by which this protocol prolongs xenograft survival. METHODS We measured rat islet and skin xenograft survival in euthymic and thymectomized mice treated with combinations of DST, anti-CD154 mAb, anti-CD4 mAb, and anti-CD8 mAb. Recipients included C57BL/6, C57BL/6-scid, C57BL/6-CD4null, and C57BL/6-CD8null mice. RESULTS Pretreatment with a depleting anti-CD4 mAb markedly prolonged the survival of both skin and islet xenografts in mice given DST plus anti-CD154 mAb. Comparable prolongation of xenograft survival was obtained in C57BL/6-CD4null recipients treated with DST and anti-CD154 mAb. In contrast, anti-CD8 mAb did not prolong the survival of either islet or skin xenografts in mice treated with DST and anti-CD154 mAb. Thymectomy did not influence xenograft survival in any treatment group. Adoptive transfer of splenocytes from C57BL/6-CD4null recipients treated with DST and anti-CD154 mAb and bearing long-term skin xenografts revealed the presence of residual xenoreactive cells. CONCLUSIONS These data suggest that treatment with DST and anti-CD154 mAb induces a state of "functional" transplantation tolerance. They also support the hypothesis that both the induction and maintenance of graft survival based on this protocol depend on different cellular mechanisms in allogeneic and xenogeneic model systems.
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Affiliation(s)
- E J Gordon
- Diabetes Division, University of Massachusetts Medical School, Worcester 01605, USA
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Kishimoto K, Dong VM, Sayegh MH. The role of costimulatory molecules as targets for new immunosuppressives in transplantation. Curr Opin Urol 2000; 10:57-62. [PMID: 10785843 DOI: 10.1097/00042307-200003000-00002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
T-cell costimulation is critical for all T-cell-mediated immune responses that are responsible for endpoints such as allograft rejection or autoimmune disease. Recent experimental data elucidate specific pathways for T-cell activation and negative regulatory mechanisms via unique costimulatory molecules. These data have implications for the development of novel therapeutic strategies to prevent graft rejection and improve long-term graft survival in transplant patients, and to treat autoimmune diseases in humans.
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Affiliation(s)
- K Kishimoto
- Laboratory of Immunogenetics and Transplantation, Brigham and Women's Hospital, Boston, Massachussetts 02115, USA
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23
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Low WC, Duan WM, Keene CD, Ni HT, Westerman MA. Immunobiology of Neural Xenotransplantation. NEUROMETHODS 2000. [DOI: 10.1007/978-1-59259-690-4_23] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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24
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Inoue A, Koh CS, Yamazaki M, Yagita H. Effect of Anti-B7-1 and Anti-B7-2 mAb on Theiler’s Murine Encephalomyelitis Virus-Induced Demyelinating Disease. THE JOURNAL OF IMMUNOLOGY 1999. [DOI: 10.4049/jimmunol.163.11.6180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
We examined the role of B7-1 and B7-2, costimulatory molecules critical to full activation of T cells, in the development of Theiler’s murine encephalomyelitis virus-induced demyelinating disease (TMEV-IDD). Treatment with mAbs to B7-1 resulted in significant suppression of the development of this disease both clinically and histologically. In mice treated with these mAbs, the production of TNF-α and IFN-γ in the spleen cells was decreased. The delayed-type hypersensitivity and T cell proliferative response specific for TMEV were decreased by this treatment. In contrast, treatment with Abs to B7-2, resulted in no effect on TMEV-IDD. These data suggest that B7-1 is critically involved in the pathogenesis of TMEV-IDD and that Abs to B7-1 could be a novel therapeutic approach in the clinical treatment of demyelinating diseases such as human multiple sclerosis.
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Affiliation(s)
- Atsushi Inoue
- *Third Department of Medicine (Neurology), Shinshu University School of Medicine, Matsumoto, Japan; and
| | - Chang-Sung Koh
- *Third Department of Medicine (Neurology), Shinshu University School of Medicine, Matsumoto, Japan; and
| | - Masashi Yamazaki
- *Third Department of Medicine (Neurology), Shinshu University School of Medicine, Matsumoto, Japan; and
| | - Hideo Yagita
- †Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
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25
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Xenoreactions and their modulation with bone marrow transplantation to induce tolerance. Curr Opin Organ Transplant 1999. [DOI: 10.1097/00075200-199909000-00005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Koulmanda M, Auchincloss H. Literature update 1998, Part 1. Xenotransplantation 1998; 5:226-31. [PMID: 9741462 DOI: 10.1111/j.1399-3089.1998.tb00032.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M Koulmanda
- Transplantation Unit, Surgical Services, Massachusetts General Hospital, Boston 02114, USA
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