2017 American Transplant Congress
Alemtuzumab Induction and Belatacept Maintenance in Marginal Pathology Renal Allografts.
University of Maryland, Baltimore
Background: The potential for improved outcomes with CNI avoidance may be important for kidneys with an increased likelihood of impaired graft function. We performed a…2017 American Transplant Congress
High CTLA-4 Expression and Diminished FOXO3 Expression Underlie Differential CD28 Signaling on Human Memory Th17 Cells.
Pathogen primed memory T cells can cross-react with allogeneic antigen and mediate graft rejection, a process termed allogeneic heterologous immunity. Th17 cells are pro-inflammatory CD4+…2017 American Transplant Congress
Long-Term Drug-Free Survival of Tiny Cynomolgus Islet Allografts.
Following upon highly beneficial effects observed with short-term alpha 1-antitrypsin (AAT) treatment in the marginally sized autologous cynomolgus islet transplant model, we are testing the…2017 American Transplant Congress
2B4-Mediated Inhibition of Proliferation and Glycolytic Function Attenuates T Cell Alloreactivity.
Emory Transplant Center, Atlanta, GA
Current thinking holds that costimulation-blockade resistant graft rejection may be mediated by CD28null T cells. To further investigate this possibility, we performed a retrospective immunophenotypic…2017 American Transplant Congress
IL-7 Receptor Heterogeneity as a Mechanism for Repertoire Change During Post-Depletional Homeostatic Proliferation and Its Relation to Costimulation Blockade Resistant Rejection.
Department of Surgery, Duke University School of Medicine, Durham, NC
Transplant patients treated with belatacept without depletional induction show high rates of costimulation blockade resistant rejection (CoBRR); this has been associated with CD57+ T cells.…2017 American Transplant Congress
Non-Invasive Detection of Rejection with ImmunoPET Imaging.
Current approaches to detect and diagnose rejection are retrospective and/or invasive. These methods assess the extent of end organ damage by insensitive and non-specific measures…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
TFR:TFH Cell Ratio Correlates with Anti-Donor Germinal Center Reactivity and Donor-Specific Antibody Formation Following Transplantation.
Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
Kidney transplantation is the treatment of choice for patients with end-stage renal disease. Although short-term outcomes are excellent, long-term allograft survival rates remain inadequate. It…2017 American Transplant Congress
How to Promote Regeneration After Ischemic Reperfusion Injury: Dual Role of CD 137 Agonistic Antibody.
Acute sterile inflammation can be induced by tissue damage caused by ischemia-reperfusion. In transplantation ischemia reperfusion injury (IRI) is unavoidable procedure. IRI causes delayed graft…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…
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