2021 American Transplant Congress
K562 Cells Expressing HLA-A2 Stimulate Alloreactive CD8+ T Cells
Emory Transplant Center, Emory University, Atlanta, GA
*Purpose: T cell-mediated rejection is a significant factor that leads to graft damage and loss in transplant recipients. Due to the complexity of the TCR:pMHC…2021 American Transplant Congress
Precision Medicine in Renal Transplantation: T-cell Repertoire Sequencing to Define Donor-specific Clones for Post-transplant Monitoring
*Purpose: Measuring donor-specific clonal responses offers a precise, sensitive and specific biomarker of immune recognition and activation. Combining deep immunophenotyping (DI) and T-cell receptor (TCR)…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…2020 American Transplant Congress
Offspring to Parent Living Donor Liver Transplantation: An Analysis of the A2ALL Database
*Purpose: Recently, there have been concerns regarding inferior graft survival following offspring to parent kidney transplantation due to issues related to alloimmunity during pregnancy. It…2020 American Transplant Congress
Determination of Programmed Cell Death Protein 1 (PD1) by Flow Cytometry, a Possible Follow-Up Tool in Renal Transplantation of High Immune Risk
*Purpose: Introduction: Currently, the follow-up of patients remains to be the serum creatinine level, being highly specific, however, with little sensitivity to determine the occurrence…2020 American Transplant Congress
Role of Innate Allorecognition Pathways in Mouse Kidney and Heart Allograft Rejection
*Purpose: Paired immunoglobulin-like receptors (PIR) and CD47 are molecules expressed on host myeloid cells. They recognize donor polymorphic MHC and signal regulatory protein alpha (SIRPα),…2020 American Transplant Congress
Flow Cytometric Characterization of Regulatory Cell Populations Expanded Ex Vivo from PBMCs of Kidney Transplant Recipients
*Purpose: We have previously shown that it is possible to generate alloantigen-specific regulatory T cell lines and clones that prolong allograft survival upon infusion in…2020 American Transplant Congress
T Cell Activation by Allogeneic EVs and Allogeneic MHC Cross-Dressed Cells In Vitro and In Vivo
*Purpose: The recognition of donor-MHC molecules by recipient T cells triggers the immune response leading to rejection of allografts. Our recent studies have documented the…2020 American Transplant Congress
Costimulatory Signal Impacts Car Treg Fate and Function in Transplantation
*Purpose: Donor-specific regulatory T-cell (Treg) therapy has emerged as a potent strategy to promote immune tolerance in experimental transplantation. However, a major stumbling block in…
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