2017 American Transplant Congress
Increased T Cell Exhaustion in Dialysis Patients.
Transplantation Research Center, Brigham and Women's Hospital, Boston, MA
Infection is a major complication post-transplantation. Evaluating the immune system prior to transplant may allow better optimization of immunosuppression dose. T cell exhaustion has been…2017 American Transplant Congress
High Eomesodermin Expression Correlates with Potent Human Allo-Reactive CD8+ Effector T Cells.
Surgery, University of Pittsburgh, Pittsburgh, PA
BackgroundThe transcription factors Eomesodermin (Eomes) and T-bet are thought to play critical roles in CD8+ effector memory T cell development. However, the role of Eomes…2017 American Transplant Congress
CTLA4-Ig Inhibits Effector CD8+ T Cell Function In Vivo and Rescues Ongoing Acute Allograft Rejection.
1Surgery, University of Chicago, Chicago, IL; 2Medicine, University of Chicago, Chicago, IL
CLTA4-Ig is clinically approved for preventing rejection in kidney transplant recipients but current data suggest that it is less effective for memory T cells, and…2017 American Transplant Congress
EBV-Specific CD8+ T Cells from Pediatric Thoracic vs Abdominal Transplant Recipients Are Shaped Differently by the Chronic EBV Loads with Potential Impact on the Risk of PTLD.
Background: EBV infection and post-transplant lymphoproliferative disorders (PTLD) are life-threatening complications of pediatric solid organ transplantation (Tx). Chronic high EBV viral load (HVL) carriers have…2017 American Transplant Congress
The Inhibitory Effect of Plasma on T Cell Activation: Possible Role of Plasma Exchange in Anti Rejection Therapy.
Reduction of lymphocyte proliferation by human plasma has been previously reported. Reduced activation of lymphocytes of patients on immunosuppressive drugs is well documented.Aim: To compare…2017 American Transplant Congress
Pre-Transplant Recipient Transcriptomic Profile May Predict Delayed Graft Function (DGF) in Kidney Transplantation.
Background: DGF is associated with a reduced long-term graft survival. Ischemia-reperfusion damage and donors' features have been always considered as key pathogenic factors in this…2017 American Transplant Congress
CD4 T Cell Migration Across Lymphatic Endothelium Is Enhanced by Sphingosine 1-Phosphate (S1P) and Differentially Regulated by S1P Receptors (S1PR).
1UMB, Baltimore; 2UM, Minneapolis
Introduction: S1PR1 drives T cells to migrate from thymus to blood, and from lymph node (LN) to efferent lymphatics. Whether S1PR1 or other S!PRs regulate…2017 American Transplant Congress
Costimulation Independent Acute Rejection Requires CD127 Signaling.
Department of Surgery, Emory University, Atlanta, GA
Clinical costimulation blockade with belatacept leads to improved survival and graft function. However, a subset of patients experience costimulation independent rejection. We identified a critical…2017 American Transplant Congress
Gene Editing of Keap1/Nrf2 in Human T Cells Using CRISPR-Cas9 to Improve Outcome from Ischemia Reperfusion Injury and Other T Cell Mediated Diseases.
Background: T lymphocytes are important mediators of ischemia reperfusion injury (IRI) during organ transplantation. Using genetically engineered mice, we demonstrated that augmentation of Nrf2 dependent…2017 American Transplant Congress
Immune Tolerance Monitoring in Renal Allograft Tolerance Induced by Transient Mixed Chimerism in Nonhuman Primates.
Center for Transplant Science, Massachusetts General Hospital, Boston, MA
Background: We have previously reported donor specific expansion of regulatory T cells (Tregs) in nonhuman primate (NHP) recipients which achieved renal allograft tolerance after induction…
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