Abstract:
:Adenovirus-mediated CTLA4Ig gene transfer has been reported to enhance graft survival in several rodent transplantation models. In this study, we investigated the efficacy of ex vivo and systemic transfer of the CTLA4Ig gene by adenoviral vectors in pancreatic islet allo-transplantation. Islet grafts from BN rats were transplanted to chemically induced diabetic LEW rats. First, ex vivo CTLA4Ig gene transfer into isolated islets was performed prior to transplantation. Survival of transduced grafts under the kidney capsule was slightly prolonged (8.6+/-1.3 days) compared with survival of untransduced grafts (6.7+/-1.2 days); when combined with a short course of FK506, graft survival was further extended (32.6+/-10.7 days vs. 13.7+/-1.0 days with FK506 alone). Secondly, systemic gene transfer was accomplished by intravenous administration immediately after the transplantation procedure. In these animals, islet grafts under the kidney capsule survived longer (15.2+/-3.3 days) than in controls (6.7+/-1.2 days), and when FK506 was administered perioperatively, all the islet grafts survived for more than 100 days. In systemically transduced recipients, the survival of islet grafts transplanted into the liver was not significantly different from that of the grafts placed under the kidney capsule. In order to examine organ-specific immunogenicity, heterotopic BN cardiac grafts were transplanted to LEW rats intra-abdominally, with the virus transferred systemically as in the islet model. In contrast to the islet grafts, all the cardiac grafts were accepted for longer than 100 days, even without FK506 therapy. Finally, the LEW recipients with long-surviving islet or cardiac grafts were re-transplanted with islet grafts from the same donor strain (BN) on day 100. The second islet grafts survived longer than 100 days in half of the cardiac recipients, but consistently failed in the islet recipients. We conclude that in this transplant model, CTLA4Ig gene transfer and FK506 treatment synergistically improved islet graft survival, systemic transfer of the gene was more effective than ex vivo transfer to the islets, and donor-specific tolerance could not be achieved for islet transplantation but was achieved for cardiac transplantation.
journal_name
Transpl Immunoljournal_title
Transplant immunologyauthors
Akamaru Y,Ito T,Uchikoshi F,Maeda A,Tori M,Kiyomoto T,Komoda H,Miao G,Matsuda Hdoi
10.1016/S0966-3274(02)00153-3subject
Has Abstractpub_date
2003-01-01 00:00:00pages
91-100issue
1eissn
0966-3274issn
1878-5492pii
S0966-3274(02)00153-3journal_volume
11pub_type
杂志文章abstract:INTRODUCTION:Glutathione (GSH) is added to University of Wisconsin (UW) organ preservation solution to protect against oxidative stress. This study assesses the effect of GSH-supplementation on endothelial function in tissues subjected to cold ischaemia and compares its effects to a mono-ethyl ester equivalent (GSH-MEE...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2007.06.002
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVES:To assess the timelines of serum free light chain (sFLC) concentrations and the kappa/lambda light chain (K/L) ratio in heart transplant (HTX) recipients. To analyze the performance of serum protein electrophoresis (SPE), serum immunofixation (sIFE) and sFLC measurements for gammopathy detection following a ...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2017.01.003
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:Ischemia reperfusion injury (IRI) is one of the risk factors for delayed graft function, acute rejection and long term allograft survival after kidney transplantation. IRI is an independent antigen inflammatory process that produces tissue damage. Our objective was to study the impact of immunosuppressive tr...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2010.10.006
更新日期:2011-01-15 00:00:00
abstract::Graft-vs.-host disease (GVHD) caused by immunologic activated cells remains a real problem in human allogeneic hematopoetic stem cell transplantation. Mesenchymal stem cells (MSCs) play some important roles on immunomodulatory. We developed a parent-into-F1 model of acute GVHD to evaluate the mechanisms involved in im...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2009.08.002
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:We recently reported that autoreactive antibody (Ab) against nuclear histone H1 had been identified as an immunosuppressive factor in a rat tolerogenic orthotopic liver transplantation (OLT) model. The present study aimed to determine whether the up-regulation of antihistone H1 Ab by histone H1 vaccination l...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2007.01.003
更新日期:2007-04-01 00:00:00
abstract::In this review, we summarize the work published over the last few years relative to cellular immunological hurdles encountered specifically in pig-to-primate xenotransplantation models. The works summarized here cover both the innate and adaptative cellular immune response as well as strategies to overcome them and co...
journal_title:Transplant immunology
pub_type: 杂志文章,评审
doi:10.1016/j.trim.2008.10.006
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:Our laboratory has demonstrated that xenogeneic porcine thymus tissue grafted in thymectomized (ATX) and T cell-depleted mice induces donor-specific tolerance. Recipient thymectomy is essential for the success of tolerance induction. In contrast, studies in pigs grafted with non-vascularized allogeneic class...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2005.04.004
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Cytomegalovirus (CMV)-specific T-cells are crucial to prevent CMV disease. CMV seropositive recipients transplanted with stem cells from a CMV seronegative allogeneic donor (R+D-) may be at risk for CMV disease due to absence of donor CMV-specific memory T-cells in the graft. METHODS:We analyzed the duratio...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2018.04.003
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Donor leucocytes (DL) play an important role in rat liver transplant tolerance and their postoperative administration can convert rejection to tolerance. They appear to induce early activation, altered patterns of infiltration and death of recipient alloreactive T cells. The ability of immunosuppressive drug...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2004.05.003
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVE:The immunomodulator, FTY720, lowers the peripheral lymphocyte count (PLC) by inducing migration of circulating lymphocytes to secondary lymphoid organs. We investigated the efficacy of mono- vs. combined-FTY720/CsA therapy on graft survival (GS) and on lowering the PLC in a solid organ and a skin graft model,...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/s0966-3274(01)00031-4
更新日期:2001-02-01 00:00:00
abstract::Type 1 diabetes is one of the more costly chronic diseases of children and adolescents throughout North America and Europe, exhibiting an average estimated prevalence rate of nearly 0.2%. It occurs in genetically predisposed individuals when the immune system attacks and destroys specifically the insulin-producing bet...
journal_title:Transplant immunology
pub_type: 杂志文章,评审
doi:10.1016/j.trim.2003.12.011
更新日期:2004-04-01 00:00:00
abstract::We investigated the immunosuppressive effects of the dihydroortate dehydrogenase (DHODH) inhibitor compounds ABR-222417 and ABR-224050 from Active Biotech (Sweden). We verified the inhibitory effects of these compounds on the proliferation of CD4(+) and CD8(+) T-cells in vivo by using superantigen staphylococcus enter...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2010.05.005
更新日期:2010-08-01 00:00:00
abstract::We determined total rabbit-IgG (r-ATG) levels in serum samples before (day 0) and after (day 11 and day 25) unrelated donor umbilical cord blood transplantation (UCBT). Most patients (27/41) suffered from a haematological malignancy. There were 25 children and 16 adults. All patients received rabbit anti-thymocyte glo...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2012.06.003
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVE:Acute rejection is a major cause of morbidity and mortality after solid organ transplantation. Therefore, optimizing treatment strategies and improving curative effect is urgent and necessary. Reliable biomarkers for acute rejection and the underlying molecular mechanisms remain to be determined. METHODS:In ...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2020.101320
更新日期:2020-10-01 00:00:00
abstract::Organ transplantation is an effective way to treat many end-stage diseases. In order to overcome post-transplant rejection, immunosuppressive agents have been widely used, but the long-term survival of transplanted organs still has not been achieved in the clinic. For decades, tolerance is the "holy grail" that transp...
journal_title:Transplant immunology
pub_type: 杂志文章,评审
doi:10.1016/j.trim.2019.101250
更新日期:2020-02-01 00:00:00
abstract::Stem cell transplantation (SCT) has emerged to be an appealing tool for repair medicine. In the treatment of ischemic heart diseases, SCT will be of great help because it is capable of replacing scar with new myocardial tissue. Among the many candidate cell lines for SCT, embryonic stem cells (ESCs) have their unique ...
journal_title:Transplant immunology
pub_type: 杂志文章,评审
doi:10.1016/j.trim.2007.05.003
更新日期:2007-11-01 00:00:00
abstract::Mycophenolate mofetil (MMF) a potent immunosuppressive agent, has recently been approved for clinical use (CellCept) in renal transplant patients in combination with cyclosporine (CsA). With the expanded use of tacrolimus (Prograf) as well in renal transplant patients, there is a lack of pharmacokinetic studies clarif...
journal_title:Transplant immunology
pub_type: 临床试验,杂志文章
doi:10.1016/s0966-3274(97)80042-1
更新日期:1997-09-01 00:00:00
abstract::C3H mice were immunized by repeated skin grafting with B10.BR tail skin. Ten days after the last immunization mice received 100 micrograms (intravenously) of a variety of different monoclonal antibodies (mAbs: anti-ICAM-1, -LFA-1, -VCAM-1, -VLA-4), alone or in combination, followed by further B10.BR skin grafts. Contr...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/0966-3274(95)80007-7
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Pigs are frequently used as animal models for experiments in the surgical field, including allo- and xeno-transplantation. Regeneration studies, including studies dealing with human- and monkey-induced pluripotent stem cells (iPSC), have gradually progressed, with pigs sometimes being used as the scaffold. H...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2016.12.002
更新日期:2017-02-01 00:00:00
abstract:INTRODUCTION:Regulatory T cells (Tregs) have been related to acute rejection as have the cytotoxic T cells, their immunological counterpart. High expression of cytotoxic markers has been related to acute rejection incidents following both kidney and intestine transplantation, while the correlation between FoxP3 express...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2010.06.011
更新日期:2010-10-01 00:00:00
abstract::CD4(+)CD25(high) T cells named regulatory T (Treg) cells are generated and play a key role in the induction and maintenance of transplant tolerance in organ recipients. Interleukin-2 (IL-2) enhance the development of effector cells and is essential for generation of Treg cells. The effect of the anti-CD25 monoclonal a...
journal_title:Transplant immunology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.trim.2008.01.005
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:Peroxisome Proliferator-Activated Receptor gamma (PPARgamma) is a nuclear receptor that regulates the transcription of genes associated with lipid and glucose metabolism. Recently, it has been shown that PPARgamma modulates the activity of T cells, resulting in inhibition of T cell proliferation and IL-2 rel...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2007.03.003
更新日期:2007-07-01 00:00:00
abstract::The means by which methotrexate (MTX) mediates immunosuppression at low doses remains to be elucidated. MTX has been shown to inhibit the adherence of neutrophils and fibroblasts to endothelial cells in vitro. The hypothesis that MTX treatment may affect cellular adherence by downregulating cell adhesion molecule expr...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/s0966-3274(98)80026-9
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND:Xenotransplantation is an appealing alternative to human allotransplantation because of a worldwide shortage of organs. One of the obstacles for xenografts is cellular rejection by the innate immune system, comprised of NK cells, monocytes, and macrophages. In this study the inhibitory function of HLA-G1, a ...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2014.12.004
更新日期:2015-03-01 00:00:00
abstract::Adhesion molecule expression is an important event during early transplant failure. The aim of the present study was to examine the release of adhesion molecules during the first minutes of kidney allograft reperfusion in relation to delayed graft function and acute graft rejection. We enrolled 49 renal transplant rec...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2006.08.002
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:Although high-mobility group box-1 (HMGB1), which is a nuclear protein, was reported to enhance the allogeneic responses in transplantation, the effect of HMGB1 on bronchiolitis obliterans syndrome (BOS) is unknown. METHODS:A murine heterotopic tracheal transplantation model was used. Protein concentrations...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2018.11.007
更新日期:2019-04-01 00:00:00
abstract::The expression of CD30 is restricted to cells of the immune system and strictly regulated under physiological conditions. However, active immune cells express CD30 and soluble CD30 (sCD30) is released. Several investigators reported the relevance for sCD30 as a predictive marker for allograft rejection following organ...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2010.07.001
更新日期:2010-08-01 00:00:00
abstract::Using specific cell surface receptors lymphocytes continuously sample their environment. Maturation of the immune system and initiation of a specific immune response rely on an array of extracellular cues that elicit complex intracellular biochemical signals. Essential molecules involved in signal transduction from im...
journal_title:Transplant immunology
pub_type: 杂志文章,评审
doi:10.1016/s0966-3274(02)00009-6
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:Antibody-mediated rejection (ABMR) is the leading cause of kidney graft loss worldwide. Criteria for acute humoral rejection (currently labeled active humoral rejection) established by the 2007 Banff classification are highly specific but lack sensitivity. Modifications to the Banff classification were intro...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/j.trim.2018.08.008
更新日期:2018-12-01 00:00:00
abstract::Administration of anti-intercellular adhesion molecule (ICAM)-1 monoclonal antibody (mAb) plus anti-lymphocyte function associated antigen (LFA)-1 mAb induces tolerance in murine cardiac transplantation, while anti-vascular cell adhesion molecule (VCAM)-1 mAb plus anti-very late antigen (VLA)-4 mAb administration prol...
journal_title:Transplant immunology
pub_type: 杂志文章
doi:10.1016/s0966-3274(99)80021-5
更新日期:1999-03-01 00:00:00