2021 American Transplant Congress
Evaluation of the Differentiation Program of Endogenous Antigen-specific CD8+T Cells Following Transplantation
1Pathology, Johns Hopkins University, Baltimore, MD, 2Surgery, Emory Transplant Center, Atlanta, GA
*Purpose: Despite advances in the survival of transplanted organs, acute T cell mediated rejection remains a significant clinical problem with few effective or targeted treatments.…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…2020 American Transplant Congress
Effector Differentiation of Endogenous Antigen-Specific CD8+ T Cells is Selectively Limited by CTLA-4 Ig
Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
*Purpose: Costimulation blockade with belatacept (CTLA-4 Ig) offers improved renal function and reduced toxicity following transplantation compared to calcineurin inhibitors. Nonetheless, episodes of acute T…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…2020 American Transplant Congress
A Bioinformatics Pipeline for the Identification of Crucial Factors for Transplant Rejection Based on NGS Data
*Purpose: T and B cells are crucial parts of the human immune system and play an important role in transplantation. Since the mechanisms leading to…2020 American Transplant Congress
CD56DimCD16Bright NK Cells from Kidney Transplant Recipients with Antibody-Mediated Rejection Display Increased Proliferation, Self-Renewal, Pro-Inflammatory and Cytotoxic Profile
*Purpose: Contribution of NK cells to antibody-mediated rejection (ABMR) injuries have recently been highlighted through transcriptomic analysis and immunohistochemistry of kidney and heart allograft biopsies.…2020 American Transplant Congress
T Cells from Highly Sensitized Kidney Transplant Patients Display Distinct TCR Repertoires
1RIMUHC, Montreal, QC, Canada, 2McGill University, Montreal, QC, Canada
*Purpose: Sensitization to HLA antigens limits patient’s access to renal transplantation and causes higher risk of acute rejection and graft loss. T-cells, B-cells and donor-specific…2020 American Transplant Congress
The Addition of Splenectomy to Simultaneous Liver Kidney Transplantation Improves Class II DSA Clearance in Sensitized Patients
Department of Transplantation, University of Wisconsin, Madison, WI
*Purpose: The liver allograft clears class I donor specific antibody (DSA) more effectively than class II DSA. Persistent class II DSA in simultaneous liver kidney…
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