2015 American Transplant Congress
A Novel, Blocking Anti-CD40 Monoclonal Antibody Prolongs Non-Human Primate Renal Allograft Survival in the Absence of B-Cell Depletion Or Thromboembolic Events
Background. CD40-CD154 pathway blockade prolongs renal allograft survival in non-human primates (NHPs). However, antibodies targeting CD154 were associated with an increased incidence of thromboembolic complications…2015 American Transplant Congress
In Vitro Evidence That CTLA4Ig Attenuates Recall Alloantibody Responses
Background: CTLA4Ig is an agonist that blocks CD28-B7 costimulation, downregulating T cell immunity, but also appears to negate T cell-dependent B cell activation, thus inhibiting…2015 American Transplant Congress
Anti-BTLA Antibody (6B2) Induced Prolongation of Fully MHC-Mismatched Murine Cardiac Allograft and Generation of Foxp3+ Regulatory T Cells
Background: The co-inhibitory receptor B and T lymphocyte attenuator (BTLA; CD272) has been implicated in the regulation of autoimmune and may potentially play an important…2015 American Transplant Congress
Desensitization With Costimulation Blockade and Proteasome Inhibition in a Non-Human Primate Model of Kidney Transplantation
[Background] Sensitization is a growing problem on the kidney waiting list. Alloantibody can significantly deteriorate graft survival. Currently used desensitization strategies are time-consuming, expensive and…2015 American Transplant Congress
Blocking CD4 T Cell Helper Functions Improves Efficacy of ATG Treatment in Sensitized Transplant Recipients
Immunology, Cleveland Clinic, Cleveland, OH.
Antibody mediated lymphocyte depletion is used in clinical transplantation to improve graft function. While the presence of donor-reactive memory T cells is the primary rationale…2015 American Transplant Congress
Indefinite Survival of Fully MHC-Mismatched Murine Cardiac Allografts by Combination of Anti-BTLA mAb (6B2) and Anti-PD-1 mAb (PIM-2)
Background: The co-inhibitory receptor B and T lymphocyte attenuator (BTLA) and Programmed death (PD)-1 had been suggested to have immunomodulatory activity. This study investigated the…2015 American Transplant Congress
Galectin-9 Protects Mouse Liver Transplants Against Ischemia-Reperfusion Injury
Dept of Surgery, Dumont-UCLA Liver Transplant Center, Los Angeles, CA.
Background:Although Galecin 9 (Gal-9) negatively regulates Th1-type alloimmunity by binding to T-cell Immunoglobulin Mucin-3 (TIM-3) on activated Th1 cells, its role in liver ischemia-reperfusion injury…2015 American Transplant Congress
Vascularized Bone Marrow Plays a Critical Role in Inducing Tolerance of Osteomyocutaneous Allografts
Background: Vascularized composite allograft (VCA) that includes medullary bone may provide proposed benefits ofvascularized bone marrow transplantation (VBMT), such as a continuous supply of donor…2015 American Transplant Congress
2B4 Expression on Human CD4+ Memory T Cells Is Associated With Functional Impairment
Emory Transplant Center, Emory University, Atlata, GA.
The SLAM family receptor 2B4 is expressed primarily on NK cells and memory CD8+ T cells. In prior studies, we found that 2B4 was upregulated…2015 American Transplant Congress
VLA-4 Blockade Inhibits Endogenous Memory CD8 T Cell-Mediated Rejection of Cardiac Allografts
Endogenous memory CD8 T cells infiltrate cardiac allografts within 24 hours of reperfusion and are activated to proliferate and produce IFN-γ in response to donor…
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