2020 American Transplant Congress
Pleural Exosome Mediated Donor Antigen Trafficking Into Mediastinal Lymph Nodes Represents a Novel Pathway of Recipient T Cell Activation in Lung Transplantation
*Purpose: Studies in lung transplant models suggest that reestablishment of lymphatic continuum of pulmonary allograft via lymphangiogenesis is required for selective trafficking of donor antigen…2020 American Transplant Congress
Human Live Donor Liver Transplantation is Associated with Pd-l1 Expression on Donor-Exosome-Acquiring Host Dendritic Cells
Surgery- Transplantation, University of Wisconsin-Madison, Madison, WI
*Purpose: Liver transplantation (LTx) has been associated with the phenomenon of “cross-dressing” of recipient dendritic cells (DCs) by donor exosome-derived MHC antigens, and acquisition of…2020 American Transplant Congress
Next Generation Sequencing Based Analysis of the T-Cell Receptor Repertoire Reveals an Increase of Alloreactive T-Cell Clones after Kidney Transplantation
*Purpose: The development of the alloreactive T-cell repertoire after kidney transplantation (KTX) is not yet fully understood. The combination of mixed lymphocyte reaction (MLR) and…2019 American Transplant Congress
Myeloid AXL Promotes Cardiac Allograft Vasculopathy
*Purpose: Cardiac Allograft Vasculopathy (CAV) is a significant contributor to long term transplant rejection, despite advances in immunotherapy. Reactivity to alloantigen presentation may occur by…2019 American Transplant Congress
Heart En Bloc Thymus Cotransplantation in NHPs
*Purpose: Tolerance of isolated cardiac allografts has never been achieved in NHPs. We investigated whether a cotransplanted, vascularized, donor thymus could induce tolerance of a…2019 American Transplant Congress
Murine Cmv Infection Impairs Transplantation Tolerance: A Critical Role Of Intragraft Anergic Cd4 T Cells
1Medicine, Duke University, Durham, NC, 2Pathology, Northwestern University, Chicago, IL
*Purpose: It is well known that certain infections can impair the stability of transplantation tolerance in recipients who had prolonged functional grafts, resulting in graft-loss.…2019 American Transplant Congress
Predicted Indirectly Recognizable H L A Epitopes Are Associated with T-cell Mediated Rejection among Kidney Transplant Recipients with Preformed and De Novo Donor-Reactive T-cells
*Purpose: Very recently Predicted Indirectly ReCognizable HLA Epitopes (PIRCHE) have been suggested to demonstrate early and late effects on kidney allograft outcomes. The association between…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
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…
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