2017 American Transplant Congress
Evaluation of Function and TCR signaling Profile of CD57+ T Cells in Allo-Specific Immunity.
Our studies have showed that CD57+ cells are resistant to B7 costimulation blockade (CoB). We hypothesize that CD57+ cells are highly sensitive to T cell…2017 American Transplant Congress
Differences in Kinetics of IFN-y Production Between Endogenous and Allotransplant-Induced Memory T Cells.
Background:CD8+ memory T cells produce IFN-g in a faster and stronger fashion than their naïve counterparts after allorecognition. Unmanipulated mice possess a proportion of endogenous…2017 American Transplant Congress
Patients with Renal Failure Have a pERK-Dependent Defective TCR-Mediated Activation of CD4+ T Cells.
Internal Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
Introduction Patients with end-stage renal disease (ESRD) have an impaired immune response with a prematurely aged T cell system. Mitogen-activated protein kinases (MAPKs) including extracellular…2017 American Transplant Congress
Uptake of Extracellular Mitochondria Activates Human Endothelial Cells That Stimulate Alloreactive Effector T Cell Responses.
1Surgery, Duke University, Durham, NC; 2Immunology, Duke University, Durham, NC
Introduction: Vascular endothelial cells (VECs), the initial barrier between host immunity and donor allograft tissue, play a critical role in allograft rejection. We investigated the…2017 American Transplant Congress
Trafficking of Donor Leukocytes and Recipient Cells Cross-Dressed with Donor MHC Molecules After Transplantation of Cardiac Allografts in Monkeys.
Activation of recipient T cells recognizing allogeneic MHC molecules displayed on donor leukocytes is known to trigger acute allograft rejection (direct allorecognition). Recently, we have…2017 American Transplant Congress
Preventing of Rejection of Vascularized Composite Allografts by Targeting T Cell Metabolism.
[Background] Upon antigen recognition and co-stimulation, T lymphocytes upregulate the metabolic machinery necessary to proliferate and sustain effector function. This metabolic reprogramming in T cells…2017 American Transplant Congress
Tofacitinib-Loaded Solid Lipid Nanoparticles Inhibits Dendritic Cell Antigen Presenting Functions and Achieve Selective In Vivo Targeting.
BackgroundComplications from long-term use of calcineurin inhibitors are a major concern for transplant patients. To develop CNI-free therapies, we investigated an innovative drug delivery method…2017 American Transplant Congress
Host-Derived, Intragraft Dendritic Cells Are Extensively Cross-Dressed by Donor MHC.
Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsbugh, PA
Host dendritic cells (DC) are the primary driver of transplant rejection in secondary lymphoid tissues where they activate alloreactive T cells. Directly alloreactive T cells…2017 American Transplant Congress
A New and Potent Distal Enhancer of the IL2 Gene.
Interleukin-2 is a potent T cell growth factor with crucial roles in both immunity and tolerance. Genetic studies in humans and mice demonstrate a role…2017 American Transplant Congress
Reduction of Recipient Cell Cross-Dressing with Donor MHC Molecules Prolongs Allograft Survival in Mice.
Cross-dressing of recipient cells with allogeneic MHC molecules carried by donor exosomes occurs regularly after transplantation. However, it is still unknown whether this phenomenon plays…
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