IXA Honorary Member Lecture, 2017: The long and winding road to tolerance.

abstract：AIM:to study whether sensitization to pig antigens results in humoral and/or cellular sensitization to alloantigens in baboons, and thus increases the risks of organ allotransplantation after xenotransplantation. Serum from baboons that were naive (n = 4), sensitized to Gal alpha 1,3Gal (Gal) antigens (n = 2), or sensi...

journal_title：Xenotransplantation

authors： Baertschiger RM,Dor FJ,Prabharasuth D,Kuwaki K,Cooper DK

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND:In vivo pig liver xenotransplantation preclinical trials appear to have poor efficiency compared to heart or kidney xenotransplantation because of xenogeneic rejection, including coagulopathy, and particularly thrombocytopenia. In contrast, ex vivo pig liver (wild type) perfusion systems have been proven to ...

journal_title：Xenotransplantation

authors： Wang Q,Zhang X,Wang B,Bai G,Pan D,Yang P,Tao K,Li X,Dou K

更新日期：2020-01-01 00:00:00

abstract：BACKGROUND:The JAK/STAT (Janus Tyrosine Kinase, Signal Transducers and Activators of Transcription) pathway is associated with cytokine or growth factor receptors and it is critical for growth control, developmental regulation and homeostasis. The use of porcine ocular cells as putative xenotransplants appears theoreti...

journal_title：Xenotransplantation

authors： Fasler-Kan E,Barteneva NS,Ketterer S,Wunderlich K,Reschner A,Nurzhanova A,Flammer J,Huwyler J,Meyer P

更新日期：2013-11-01 00:00:00

abstract：BACKGROUND:The induced antibodies against Galalpha1,3Gal (Gal) and non-Gal epitopes may contribute to delayed xenograft rejection (DXR). We asked whether blockade of the CD40/CD154 and CD28/B7 co-stimulatory pathways modulates the baboon elicited antibody response to pig Gal and non-Gal antigens. METHODS:Eighteen babo...

journal_title：Xenotransplantation

authors： Wu G,Pfeiffer S,Schröder C,Zhang T,Nguyen BN,Lea W,Kelishadi S,Atkinson JB,Schuurman HJ,White DJ,Azimzadeh AM,Pierson RN 3rd

更新日期：2005-05-01 00:00:00

abstract：BACKGROUND:Activation of the clotting cascade is central in acute xenograft rejection (AHXR) that occurs when pig organs are transplanted into primates. The coagulopathy reported in this model is a very complex process that involves simultaneously coagulation factors, platelets and phospholipid-bearing cells (i.e., leu...

journal_title：Xenotransplantation

authors： Spiezia L,Boldrin M,Radu C,Bulato C,Bertini D,Bon M,Campello E,Vadori M,Galli C,Gavasso S,Nottle MB,Cowan PJ,Cozzi E,Simioni P

更新日期：2013-03-01 00:00:00

abstract：:Type 1 diabetes can be cured by transplantation of isolated pancreatic islets. Because of the shortage of human donor tissue, adult porcine islets (APIs) constitute a possible alternative tissue source. Upon intraportal injection, islets are subjected to an instant blood-mediated inflammatory reaction (IBMIR) leading ...

journal_title：Xenotransplantation

authors： Ehrnfelt C,Kumagai-Braesch M,Uzunel M,Holgersson J

更新日期：2004-03-01 00:00:00

abstract：BACKGROUND:In vivo xenotransplantation modeling in large animal species is often performed in nonhuman primates, including baboons. For proper data interpretation, reference values for clinical chemistry and hematology are required. METHODS:These values are available from baseline levels in animals subjected to tolera...

journal_title：Xenotransplantation

authors： Schuurman HJ,Smith HT,Cozzi E

更新日期：2004-11-01 00:00:00

abstract：:Liver xenografts transplanted from guinea pig to rat suffer from inadequate organ reperfusion and initial dysfunction, despite sufficient complement depletion using cobra venom factor (CVF). Reperfusion injury is prevented when complement depleted donors are treated with the prostacyclin analog epoprostenol. Histologi...

journal_title：Xenotransplantation

authors： Meyer zu Vilsendorf A,Link C,Jörns A,Nagel E,Köhl J

更新日期：2001-02-01 00:00:00

abstract：:Highly sensitized patients awaiting kidney transplantation may be potential candidates for future clinical trials using pig organ donors. Because of crossreactivity between human leucocyte antigens (HLA) and swine leucocyte antigens (SLA), such patients might have heightened T-cell responses to porcine xenoantigens. W...

journal_title：Xenotransplantation

authors： Oostingh GJ,Davies HF,Bradley JA,Taylor CJ

更新日期：2003-11-01 00:00:00

abstract：AIM:To provide information on the specificity of induced anti-pig antibodies (Abs) in baboons after exposure and sensitization to pig antigens. MATERIALS AND METHODS:Baboons (n=7) received either porcine mobilized peripheral blood progenitor cells (n=3), kidney (n=3) or heart (n=1) transplants. After rejection of thes...

journal_title：Xenotransplantation

authors： Buhler L,Xu Y,Li W,Zhu A,Cooper DK

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND:Both the complement and the coagulation systems play important roles in the development of hyperacute or acute antibody-mediated xenograft rejection. Atrase B is a novel metalloproteinase isolated from the venom of Naja atra. In this study, we investigated the inhibitory effects of atrase B on complement act...

journal_title：Xenotransplantation

authors： Fu C,Shi L,Huang X,Feng H,Tan X,Chen S,Zhu L,Sun Q,Chen G

更新日期：2020-09-01 00:00:00

abstract：BACKGROUND:  Various groups have reported prolonged diabetes reversal and graft function after porcine islet transplantation into diabetic macaques using different experimental designs (macaque source, islet source, type of immunosuppression): subsequently, the International Xenotransplantation Association has publishe...

journal_title：Xenotransplantation

authors： Graham ML,Schuurman HJ

更新日期：2013-01-01 00:00:00

abstract：:Mouse CD4+ T cells efficiently develop in fetal pig thymus (FP THY) grafts and repopulate the periphery of T cell and NK cell-depleted, thymectomized (ATX) mice. However, efficient peripheral repopulation of mouse CD8+ T cells does not occur in these mice. We have therefore evaluated the maturation and function of mou...

journal_title：Xenotransplantation

authors： Zhao Y,Barth RN,Swenson K,Pearson DA,Sykes M

更新日期：1998-02-01 00:00:00

abstract：BACKGROUND:The programmed cell death-1 (PD-1, CD279)/PD-Ligand1 (PD-L1, CD274) receptor system is crucial for controlling the balance between immune activation and induction of tolerance via generation of inhibitory signals. Expression of PD-L1 is associated with reduced immunogenicity and renders cells and tissues to ...

journal_title：Xenotransplantation

authors： Buermann A,Petkov S,Petersen B,Hein R,Lucas-Hahn A,Baars W,Brinkmann A,Niemann H,Schwinzer R

更新日期：2018-09-01 00:00:00

abstract：BACKGROUND:The present study reports the development of a sensitive dot blot protocol for determining the level of preformed antibodies against porcine heart valve tissue derived from wild-type (WT) and α-Gal-KO (GGTA1-KO) pigs in human sera. METHODS:The assay uses decellularized and solubilized heart valve tissue; an...

journal_title：Xenotransplantation

authors： Smart I,Goecke T,Ramm R,Petersen B,Lenz D,Haverich A,Niemann H,Hilfiker A

更新日期：2020-09-17 00:00:00

abstract：:For long-term xenograft survival, coagulation control is one of the remaining critical issues. Our attention has been directed toward human thrombomodulin (hTM), because it is expected to exhibit the following beneficial effects on coagulation control and cytoprotection: (i) to solve the problem of molecular incompati...

journal_title：Xenotransplantation

authors： Yazaki S,Iwamoto M,Onishi A,Miwa Y,Hashimoto M,Oishi T,Suzuki S,Fuchimoto D,Sembon S,Furusawa T,Liu D,Nagasaka T,Kuzuya T,Ogawa H,Yamamoto K,Iwasaki K,Haneda M,Maruyama S,Kobayashi T

更新日期：2012-03-01 00:00:00

abstract：:Exposure to human serum induces the lysis of xenogeneic cells through natural antibodies and complement activation. The carbohydrate Galactose-alpha1,3-Galactose (Gal-alpha1,3-Gal) epitope, has been shown to be the principal antigenic determinant on target cells. This reaction is, therefore, particularly important for...

journal_title：Xenotransplantation

authors： Déglon N,Aubert V,Spertini F,Winkel L,Aebischer P

更新日期：2003-05-01 00:00:00

abstract：BACKGROUND:The continued presence of a primate antibody-mediated response to cells and organs from alpha1,3-galactosyltransferase gene-knockout (GTKO) pigs indicates that there may be antigens other than Gal alpha 1,3Gal (alpha Gal) against which primates have xenoreactive antibodies. Human and baboon sera were tested ...

journal_title：Xenotransplantation

authors： Yeh P,Ezzelarab M,Bovin N,Hara H,Long C,Tomiyama K,Sun F,Ayares D,Awwad M,Cooper DK

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND:Porcine islet transplantation into diabetic non-human primates is considered most relevant in translational research supporting a clinical application. Most studies have focused on immunosuppressive protocols, while metabolic aspects have mainly been utilized in graft monitoring. We evaluated data from our g...

journal_title：Xenotransplantation

authors： Graham ML,Bellin MD,Papas KK,Hering BJ,Schuurman HJ

更新日期：2011-11-01 00:00:00

abstract：:Cultures of hDAF transgenic porcine aortic endothelial cells (TPAEs) with levels of cell surface hDAF expression between 2000 and 300 000 molecules per cell have been used to determine the relationship between expression of hDAF and protection from human complement deposition in an in vitro model. At concentrations be...

journal_title：Xenotransplantation

authors： Carrington CA,dos Santos Cruz G

更新日期：2001-05-01 00:00:00

abstract：:We designed this study to define reference values of the cynomolgus monkey coagulation system, as the normal range of values has not been established. Measurement of coagulation function was determined by testing plasma samples from 30 healthy male cynomolgus monkeys. Prothrombin time (PT), PT activity, PT internation...

journal_title：Xenotransplantation

authors： Rhu J,Lee KW,Kim KS,Lee JS,Kim SJ,Park JB

更新日期：2019-01-01 00:00:00

abstract：:Fetal pig islets, xenografted after organ culture into non-immunosuppressed prediabetic NOD mice, are rejected within 10 days. Immunosuppression with anti-T cell (anti-CD4 and anti-CD3) monoclonal antibodies alone is highly effective in delaying graft rejection in this discordant model, but rejection eventually occurs...

journal_title：Xenotransplantation

authors： Koulmanda M,Kovarik J,Mandel TE

更新日期：1998-08-01 00:00:00

abstract：:The activation of the endothelial surface in xenografts is still a poorly understood process and the consequences are unpredictable. The role of Ca2+ -messaging during the activation of endothelial cells is well recognized and routinely measured by synthetic Ca2+ -sensitive fluorophors. However, these compounds requir...

journal_title：Xenotransplantation

authors： Wuensch A,Kameritsch P,Sfriso R,Jemiller EM,Bähr A,Kurome M,Kessler B,Kemter E,Kupatt C,Reichart B,Rieben R,Wolf E,Klymiuk N

更新日期：2020-09-01 00:00:00

abstract：BACKGROUND:Descemet's membrane endothelial keratoplasty (DMEK) might be a promising technique for future xeno-corneal transplantation due to its ultrathin graft, extremely low rejection occurrence, suture-free graft fixation, and minimal immunosuppressive regime usage. The aim of this study is to explore the feasibilit...

journal_title：Xenotransplantation

authors： Liu Y,Zhang J,Zhang Y,Yin M,Miao S,Liang Q,Pan Z

更新日期：2018-09-01 00:00:00

abstract：BACKGROUND:Safe and reliable diabetes models are a key prerequisite for advanced preclinical studies on diabetes. Chemical induction is the standard model of diabetes in rodents and also widely used in large animal models of non-human primates and minipigs. However, uncertain efficacy, the potential of beta-cell regene...

journal_title：Xenotransplantation

authors： Heinke S,Ludwig B,Schubert U,Schmid J,Kiss T,Steffen A,Bornstein S,Ludwig S

更新日期：2016-09-01 00:00:00

abstract：BACKGROUND:The aim of the present study was to further investigate the characteristics of both graft-infiltrating cells and splenocytes during acute vascular rejection (AVR), cell-mediated rejection and non-rejection of vascularized concordant xenografts, by analysing both proinflammatory [interleukin-1beta (IL-1beta) ...

journal_title：Xenotransplantation

authors： Lorant T,Krook H,Wilton J,Olausson M,Tufveson G,Korsgren O,Johnsson C

更新日期：2003-07-01 00:00:00

abstract：BACKGROUND:Pig islets represent an alternative to the current modes of treatment for patients with diabetes. However, the concerns over pathogen transmission including that of PERV limit their immediate, widespread usage in humans. It has been previously demonstrated that PERV copy number and particularly expression le...

journal_title：Xenotransplantation

authors： Mourad NI,Crossan C,Cruikshank V,Scobie L,Gianello P

更新日期：2017-07-01 00:00:00

abstract：BACKGROUND:Ubiquitous expression of T-cell regulatory transgenes such as the cytotoxic T lymphocyte-associated antigen 4 (CTLA4) or the high-affinity variant LEA29Y improves xeno graft survival. Such donor pigs are however immunocompromised and susceptible to infection. Continous high expression of CTLA4 or LEA29Y in t...

journal_title：Xenotransplantation

authors： Fischer A,Manske K,Seissler J,Wohlleber D,Simm N,Wolf-van Buerck L,Knolle P,Schnieke A,Fischer K

更新日期：2020-11-01 00:00:00

abstract：BACKGROUND:In pig-to-nonhuman primate solid organ xenotransplantation using organs from donors transgenic for human decay-accelerating factor (hDAF), the main type of rejection is antibody-mediated (acute humoral xenograft rejection, AHXR). This occurs despite the complement-regulatory function of the transgene, neutra...

journal_title：Xenotransplantation

authors： Lam TT,Hausen B,Hook L,Lau M,Higgins J,Christians U,Jacobsen W,Baluom M,Duthaler R,Katopodis A,Chavez G,Cozzi E,Harrison R,Schuurman HJ,Borie D,Morris RE

更新日期：2005-01-01 00:00:00

abstract：:Post-transplantation infections are common in allograft recipients and should be expected in all immunocompromised hosts. Based on the need for immunosuppression in xenotransplantation, procedures developed to enhance safety in allotransplantation can be applied in future xenotransplantation clinical trials. Standardi...

journal_title：Xenotransplantation

authors： Nellore A,Fishman JA

更新日期：2018-07-01 00:00:00