2019 American Transplant Congress
Regulating T Cell Responses by Forced Transgenic Expression of Decay-Accelerating Factor
1Icahn School of Medicine at Mount Sinai, New York, NY, 2Cleveland Clinic, Cleveland, OH
*Purpose: Decay-accelerating factor (DAF, CD55) is a cell surface expressed, glycophosphatidylinositol-(GPI)-anchored, complement regulator. Previous studies showed that during cognate T cell/antigen presenting cell (APC) interactions…2019 American Transplant Congress
First Report and Mechanistic Analysis of Operational Tolerance after Intestinal Transplant
1MedStar Georgetown Transplant Institute, Washington, DC, 2University of Pittsburgh, Pittsburgh, PA
*Purpose: Transplantation tolerance is a highly sought and rarely achieved state in clinical medicine. Defined as long-term stable and acceptable graft tolerance without immunosuppression and…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
Race-Sex Effects on Immune Response Potential during Tacrolimus Minimization Therapy in Stable Renal Allograft Recipients
*Purpose: African American renal transplant recipients (RTR) exhibit more immunoreactivity to allografts which may contribute to chronic rejection. This study investigated race-sex influences on ex…2019 American Transplant Congress
Use of a CMV Specific T Cell Immunity Assay in Late-Onset CMV Infection
*Purpose: To describe our clinical experience using a CMV Specific Cell Mediated Immunity (CMI) assay in solid organ transplant (SOT) recipients with late-onset CMV, defined…2019 American Transplant Congress
Combined Pre-Transplant Anti-Donor T-Cell Sensitization with Single Nucleotid Polimorphisms (SNPs) for CYP3A4 Tacrolimus Metabolism Identifies Kidney Transplant Patients at High Risk of Allograft Rejection
*Purpose: Preformed donor-specific (d-sp) T-cell alloimmunity has been associated to high risk of acute rejection (BPAR). Since the individual susceptibility related to specific single nucleotide…2019 American Transplant Congress
Anti-ebv Antibody (ebv-ab) And Ebv-specific Cytotoxic T Cell (ebv-tc) Positivity Are Essential To Control Viremia In Seronegative (sero[-]) Pediatric Kidney Transplant Recipients (ped Ktx Pts).
Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: EBV infection represents a significant morbidity factor in KTx Pts, especially EBV sero(-) Ped as infections tend to be more severe and recurrent, increasing…2019 American Transplant Congress
Anti-cmv Antibody (cmv-ab) And Cmv-specific Cytotoxic T Cell (cmv-tc) Positivity Are Essential To Control Severe Viremia In Seronegative (sero[-]) Pediatric Kidney Transplant Recipients (ped Ktx Pts).
Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: CMV infection represents a significant morbidity factor in KTx Pts, especially CMV sero(-) Ped Pts as infections tend to be more severe and recurrent.…2019 American Transplant Congress
Evaluating Allo-Specific CD57+ T Cells during Memory and Proliferative Responses
Department of Surgery, Duke University, Durham, NC
*Purpose: We have previously identified subsets of CD57+ T cells that are resistant to B7 costimulation blockade (CoB) in kidney transplant recipients. The objective of…
American Transplant Congress abstracts