Ultrastructural alterations in human blood leukocytes induced by porcine circovirus type 1 infection.

abstract：BACKGROUND:Intravascular thrombosis and systemic coagulation abnormalities are major hurdles to successful xenotransplantation and are signs of acute humoral rejection. Increased expression of tissue factor (TF) is associated with the development of microvascular thrombosis in xenografts. To develop an effective strate...

journal_title：Xenotransplantation

authors： Lee KG,Lee H,Ha JM,Lee YK,Kang HJ,Park CG,Kim SJ

更新日期：2012-05-01 00:00:00

abstract：:We investigated the predictive biomarkers for graft rejection in pig-to-non-human primate (NHP) full-thickness corneal xenotransplantation (n = 34). The graft score (0-12) was calculated based on opacity, edema, and vascularization. Scores ≥ 6 were defined as rejection. NHPs were divided into two groups: (a) graft rej...

journal_title：Xenotransplantation

authors： Yoon CH,Choi SH,Lee HJ,Kang HJ,Kim MK

更新日期：2019-07-01 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:Whilst macrohemodynamic function of porcine xenografts transplanted into baboons has been assessed perioperatively, the ability of the xenograft to maintain systemic microcirculatory perfusion has not been investigated after pig-to-baboon xenotransplantation so far. METHODS:We investigated the sublingual mi...

journal_title：Xenotransplantation

authors： Bauer A,Renz V,Baschnegger H,Abicht JM,Beiras-Fernandez A,Brenner P,Thein E,Schmoeckel M,Reichart B,Christ F

更新日期：2011-07-01 00:00:00

abstract：:Monitoring for immune rejection is crucial for long-term survival of pig xenografts. Circulating DNA is a promising non-invasive biomarker for either organ injury or response to therapy. In this study, circulating pig-specific DNA (cpsDNA) was monitored during xenograft rejection. Potential targets of cpsDNA were sele...

journal_title：Xenotransplantation

authors： Zhou M,Lu Y,Zhao C,Zhang J,Cooper DKC,Xie C,Song Z,Gao H,Qu Z,Lin S,Deng Y,Hara H,Zhan Y,Jiang Z,Dai Y,Wu C,Cai Z,Mou L

更新日期：2019-07-01 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：:Islets isolated from multiple pancreas donors are often necessary to achieve euglycemia in type 1 diabetic patients treated by islet allotransplantation. This increases the burden on the limited pool of donor organs. After infusion into the portal vein, a substantial percentage of islets are lost in the immediate post...

journal_title：Xenotransplantation

authors： van der Windt DJ,Bottino R,Casu A,Campanile N,Cooper DK

更新日期：2007-07-01 00:00:00

abstract：:Although xenografts have always held immeasurable potential as an inexhaustible source of donor organs, immunological barriers and physiological incompatibility have proved to be formidable obstacles to clinical utility. An exciting, new regenerative medicine-based approach termed "semi-xenotransplantation" (SX) seeks...

journal_title：Xenotransplantation

authors： Salvatori M,Peloso A,Katari R,Soker S,Lerut JP,Stratta RJ,Orlando G

更新日期：2015-01-01 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:Recently, we have shown that an immunosuppression regimen including costimulation blockade via anti-CD154 antibody significantly prolongs the cardiac xenograft survival in a GTKO.hCD46Tg pig-to-baboon heterotopic xenotransplantation model. Unfortunately, many coagulation disorders were observed with the use ...

journal_title：Xenotransplantation

authors： Mohiuddin MM,Singh AK,Corcoran PC,Hoyt RF,Thomas ML 3rd,Lewis BG,Eckhaus M,Dabkowski NL,Belli AJ,Reimann KA,Ayares D,Horvath KA

更新日期：2014-01-01 00:00:00

abstract：:Complement plays a major role in hyperacute rejection of xenografts. In order to overcome this, we are developing, by minimal mutagenesis, a modified C3 molecule that, like cobra venom factor (CVF), escapes normal complement regulatory processes and inhibits complement-mediated responses by systemic depletion of C3. U...

journal_title：Xenotransplantation

authors： Fecke W,Farries TC,D'Cruz LG,Napper CM,Harrison RA

更新日期：1998-02-01 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:Our previous study has shown that porcine antigen-primed and CD4+ T cell-activated macrophages are capable of recognition and rejection of porcine xenografts after adoptive transfer. However, whether this is an absolute xenograft specific rejection remains to be confirmed. METHODS:Mouse islet allografts and...

journal_title：Xenotransplantation

authors： Fu Y,Lu X,Yi S,Wu J,O'Hara JM,Hawthorne WJ,Hucker K,O'Connell PJ

更新日期：2008-09-01 00:00:00

abstract：:Type I diabetes remains a significant clinical problem in need of a reliable, generally applicable solution. Both whole organ pancreas and islet allotransplantation have been shown to grant patients insulin independence, but organ availability has restricted these procedures to an exceptionally small subset of the dia...

journal_title：Xenotransplantation

authors： Samy KP,Martin BM,Turgeon NA,Kirk AD

更新日期：2014-05-01 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:Islet transplantation is potentially a promising therapy for the restoration of carbohydrate control to diabetic patients. However, the global application of islet transplantation requires a ubiquitous source of beta cells. The xenotransplantation of porcine islets would provide such a source. Success in por...

journal_title：Xenotransplantation

authors： Pepper AR,Gall C,Mazzuca DM,Melling CW,White DJ

更新日期：2009-11-01 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：:We describe in this report the production and characterization of monoclonal antibodies (mAb) to the swine homologues of CD11a and CD18 antigens, and their use for phenotypic and functional analysis of porcine leukocytes. Monoclonal antibodies BL1H8 and BL2F1 precipitated two bands of approximately 170 and 95 kDa, whe...

journal_title：Xenotransplantation

authors： Alvarez B,Doménech N,Alonso F,Sánchez C,Gómez del Moral M,Ezquerra A,Domínguez J

更新日期：2000-11-01 00:00:00

abstract：BACKGROUND:Dysregulation of coagulation is considered a major barrier against successful pig organ xenotransplantation in non-human primates. Inflammation is known to promote activation of coagulation. The role of pro-inflammatory factors as well as the relationship between inflammation and activation of coagulation in...

journal_title：Xenotransplantation

authors： Ezzelarab MB,Ekser B,Azimzadeh A,Lin CC,Zhao Y,Rodriguez R,Echeverri GJ,Iwase H,Long C,Hara H,Ayares D,Pierson RN,Thomson AW,Cooper DK

更新日期：2015-01-01 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：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：: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：: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:TNF and its receptors TNF-Receptor 1 (TNFR1, CD120a) and TNF-Receptor 2 (TNFR2, CD120b) have been implicated in the rejection of transplanted cells and organs. Although pig TNFR1 (pTNFR1) is known to mediate the effects of human TNF in a xenogeneic setting, it is unclear whether pig TNFR2 (pTNFR2) could cont...

journal_title：Xenotransplantation

authors： Uribe-Herranz M,Casinghino SR,Bosch-Presegué L,Fodor WL,Costa C

更新日期：2011-03-01 00:00:00

abstract：BACKGROUND:Liver fibrosis results from accumulation of extracellular matrix components and is associated with many chronic hepatic diseases. There is to date no specific therapy for this disease, and patients receive treatment for its associated complications. Specific progenitor cells, known as oval cells, are present...

journal_title：Xenotransplantation

authors： Sáez-Lara MJ,Frecha C,Martín F,Abadía F,Toscano M,Gil A,Fontana L

更新日期：2006-11-01 00:00:00

abstract：:The first blood transfusions in humans were xenotransfusions, carried out by Jean-Baptiste Denis beginning in 1667. Richard Lower, Matthäus Purmann and Georges Mercklin also experimented with the use of animal blood for transfusion until this practice was forbidden in 1670, after the death of one of Denis's patients. ...

journal_title：Xenotransplantation

authors： Roux FA,Saï P,Deschamps JY

更新日期：2007-05-01 00:00:00

abstract：:The infusion of large numbers of porcine cells into primates in order to induce specific immunologic tolerance by mixed hematopoietic chimerism, results in thrombotic microangiopathy that can be fatal. For this reason, it is important to study in vitro the interaction of primate endothelial cells with pig cells. We sh...

journal_title：Xenotransplantation

authors： Benatuil L,Fernandez AZ,Apitz-Castro R,Romano E

更新日期：2002-05-01 00:00:00

abstract：:The present historical review reports the clinical experiences of transplantations from animal to human. The first transplantation attempts were made without any knowledge of the species barrier. The pioneers of xenotransplantation realized xenotransfusions as early as the 16th century, then cell and tissue xenotransp...

journal_title：Xenotransplantation

authors： Deschamps JY,Roux FA,Saï P,Gouin E

更新日期：2005-03-01 00:00:00

abstract：:The newborn infant with severe cardiac failure owed to congenital structural heart disease or cardiomyopathy poses a daunting therapeutic challenge. The ideal solution for both might be cardiac transplantation if availability of hearts was not limiting and if tolerance could be induced, obviating toxicity of immunosup...

journal_title：Xenotransplantation

authors： Platt JL,West LJ,Chinnock RE,Cascalho M

更新日期：2018-11-01 00:00:00

abstract：BACKGROUND:Despite overcoming xenograft hyperacute rejection (HAR), Gal (galactose-alpha1,3-galactose) expression may not be completely eliminated from the alpha1,3-galactosyltransferase gene knockout (Gal KO) pig because of alternative galactosyltransferases. Whether low levels of "residual" Gal are still susceptible ...

journal_title：Xenotransplantation

authors： Murray-Segal L,Gock H,Cowan PJ,d'Apice AJ

更新日期：2008-02-01 00:00:00