2018 American Transplant Congress
Autophagy Impacts Specificity and Characteristics of Innate Alloimmune Responses in Aging
Transplant Surgery Research Lab, Brigham and Women's Hospital, Boston, MA.
Aging and chronic antigen exposure shape the balance of innate and adaptive immunity. We hypothesized that autophagy will impact the homeostasis of innate and adaptive…2018 American Transplant Congress
Allogeneic T Follicular and T Conventional Responses Assessed by Proliferation, Cytokine Production, and TCR Clonality
1Thomas E. Starzl Transplantation Institute, Pittsburgh; 2Adaptive Biotechnologies, Seattle.
Background: Human CD4+ T cell allo-immunity plays pivotal roles during cellular and humoral allograft rejection. Our previous analysis showed that allo-reactive precursors were present in…2018 American Transplant Congress
Genome Wide Non-HLA Alloimmunity Contributes to Graft Loss after Kidney Transplantation
BackgroundChronic rejection is the main cause of renal transplant loss after the first year and has mostly been attributed to alloimmune responses against human leukocyte…2018 American Transplant Congress
Specific Monocyte Memory to Allogeneic MHC Mediated by Paired Immunoglobulin Receptors (PIR)
Monocytes distinguish between self and allogeneic non-self and contribute to allograft rejection by generating mature, IL-12+, DCs. The initial trigger of monocyte differentiation to DCs…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
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
mTOR Inhibition Diminishes Peripheral Blood CD8+CD28–CD38hi Effector/Memory T Cells and Facilitates Resolution of Belatacept-Refractory Kidney Rejection.
Belatacept, a CD28-CD80/86 blocker, was approved by the FDA to provide immunosuppression without nephrotoxicity or cardiovascular and metabolic adverse effects. As part of our multi-center…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
Genome-Wide Genotyping in 1022 Heart Transplantation Recipients & 758 Donors Reveal Association with Acute Allograft Rejection.
Introduction: Acute rejection (AR) in the 1st year post-cardiac transplant remains a significant clinical issue, and predisposes recipients to subsequent chronic allograft vasculopathy. Genetic factors…2017 American Transplant Congress
Modification of Human Endothelial Cells by CRISPR/Cas9-Mediated Ablation of Class I and II Major Histocompatibility Complex Antigen Expression.
Yale School of Medicine, New Haven, CT
Human endothelial cells (ECs) derived from cord blood progenitors have significant replicative potential and are thus well suited for use in tissue engineering of vascularized…
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