2020 American Transplant Congress
Evaluating Preformed Donor HLA Reactive T Cells Using PIRCHE-II Algorithm
*Purpose: De novo donor-specific HLA antibodies (dnDSA) production involves the indirect allorecognition pathway in which recipient CD4+T cells recognize donor-HLA-derived peptide and recipient HLA class…2020 American Transplant Congress
Stability of Immune Phenotype, Alloreactive, and Antiviral Immunity after Switch to Belatacept-Based Regimen after Kidney Transplantation
David Geffen School of Medicine at UCLA, Los Angeles, CA
*Purpose: This investigator-initiated study examines the impact of belatacept on T cell immune phenotype and function.*Methods: 19 patients with evidence of calcineurin inhibitor (CNI) toxicity…2020 American Transplant Congress
Impact of Kidney Transplant Type and Previous Transplant on Baseline Donor-Derived Cell Free DNA
Nephrology and Hypertension, Allegheny General Hospital, Pittsburgh, PA
*Purpose: Donor derived-cell free DNA (dd-cfDNA) is a biomarker useful in predicting acute rejection in renal allografts. The technology uses next generation sequencing and does…2019 American Transplant Congress
SIRPα Typing as a Potential Tool for Risk Stratification in Kidney Transplantation
Transplant Immunology Laboratory, Northwestern University, Chicago, IL
*Purpose: To determine if mismatches in the SIRPα receptor, associated with initiate innate alloresponses in animal models, may impact human kidney transplantation outcome.*Methods: To avoid…2019 American Transplant Congress
MDSCs Prolong Allogeneic Cardiac Graft Survival by Regulating Interferon Type 1 Signaling
*Purpose: We previously demonstrated that donor-derived regulatory dendritic cells (DCreg), contrary to recipient derived DCreg, promote antigen-specific allograft protection. As myeloid-derived suppressor cells (MDSC) show…2019 American Transplant Congress
The Impact of Biological Behavior of Allograft Infiltrating Lymphocytes during Early Phase
Gastroenterological Surgery I, Hokkaido University, Sapporo, Japan
*Purpose: The graft infiltrating lymphocytes (GILs) build an immunological microenvironment locally. Reportedly the GILs within 72hrs posttransplantation do not attack allograft, but may prevent from…2019 American Transplant Congress
IL-1β and IL-6 Facilitate T Cell Reconstitution in Heart Allograft Recipients Treated with Anti-Thymocyte Globulin
Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
*Purpose: Antibody-mediated lymphocyte depletion is used in solid organ and stem cell transplantation. However, T cell reconstitution after lymphoablation may lead to acute rejection and…2019 American Transplant Congress
Withaferin A Shifts Circulating Lymphocytes toward Protective T Cell Subsets and Prolongs Islet Allograft Survival in a Mouse Transplant Model
*Purpose: : Immunosuppression protocols improve the efficacy of allogeneic islet transplantation. However, decline in islet graft function and toxicities imposed by current immunosuppressant drugs remain…2019 American Transplant Congress
Torque Teno Virus is a Prognostic Biomarker for Acute Biopsy-Proven Alloreactivity in Kidney Transplants
*Purpose: Drug-induced immunosuppression in kidney transplantation is crucial to prevent allograft rejection, but increases risk for infectious, cardiovascular and malignant disease. Tailoring of immunosuppressive drug…2019 American Transplant Congress
Blockade of C3aR1 Signaling Suppresses Alloreactive CD8+ T Cell Immunity and Prolongs Murine Cardiac Allograft Survival
Icahn School of Medicine at Mount Sinai, NY, NY
*Purpose: Activation, differentiation and expansion of alloreactive CD8+ T cells, the dominant effectors that mediate murine heart allograft rejection, requires allorecognition, costimulation, and cytokine-initiated signals.…
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