ATC Abstracts

American Transplant Congress abstracts

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  • 2022 American Transplant Congress

    Achievement of Persistent Mixed Chimerism in Recipients of Matched and Mismatched Living Donor Kidney Transplants in a Tolerance Induction Protocol

    J. D. Scandling, S. Busque, R. Lowsky, T. Pham, R. Hoppe, K. Jensen, A. Shori, H. Wu, R. Pawar, E. Engleman, E. Meyer, S. Strober

    Stanford University School of Medicine, Stanford, CA

    *Purpose: The induction of tolerance to kidney transplants after development of specific unresponsiveness of recipient immune cells to donor alloantigens allows elimination of maintenance immunosuppressive…
  • 2022 American Transplant Congress

    MTOR Inhibition Acts Directly on Endothelial Cells to Induce Contact-Independent Immune-Modulation of Allo-Specific T Cell Activation

    H. Xu, L. Wang, V. A. Bendersky, Q. Gao, Q. Li, A. D. Kirk, H. Xu

    Duke University School of Medicine, Durham, NC

    *Purpose: Endothelial cells (ECs) form a barrier between vascularized organ allografts and host immunity and are known to provoke alloimmune responses. The mTOR inhibitor rapamycin…
  • 2022 American Transplant Congress

    The Post-operative Clinical Outcomes Of 59 Tanrp Cases In An International Cohort

    J. Louca1, N. Patel1, S. Messer2, J. Chindu2, S. Large2

    1Cambridge University, Cambridge, United Kingdom, 2Royal Papworth Hospital, Cambridge, United Kingdom

    *Purpose: Heart transplantation is an immensely effective service and is currently the only definitive treatment for heart failure. However, transplantation is limited by donor availability.…
  • 2022 American Transplant Congress

    Is a Single Dose of Steroids in Adult Living Donor Liver Transplant Safe? – A Cohort Analysis

    M. Nunez, C. Praglin, A. M. Torres, E. Agudelo, H. Braun, C. Huang, S. Syed, J. Roberts, G. Roll

    University of California San Francisco, San Francisco, CA

    *Purpose: Steroids increase morbidity, and steroid avoidance (SA) has been studied in deceased donor liver transplant but, little is known about SA in living donor…
  • 2022 American Transplant Congress

    PTLD Suspected by Visualization of Atypical Urinary Lymphocytes

    J. Huidobro E1, F. Anghileri2, P. Troncoso3, A. Huete4, P. Downey1

    1Nephrology, Pontificia Universidad Catolica de Chile, Santiago, Chile, 2Clinical Laboratories, Pontificia Universidad Catolica de Chile, Santiago, Chile, 3Urology, Pontificia Universidad Catolica de Chile, Santiago, Chile, 4Radiology, Pontificia Universidad Catolica de Chile, Santiago, Chile

    *Purpose: Urinalysis has been used for the detection of acute rejection but visualization of atypical lymphocytes in the urine sediment as an early sign of…
  • 2022 American Transplant Congress

    Pd-1 Licenses Activated Treg for Lymphatic Migration

    W. Piao1, L. Li1, V. Saxena1, K. Hippen2, M. Shirkey1, B. Blazar2, I. Lape3, y. zhang3, J. Bromberg1

    1Surgery, University of Maryland, Baltimore, MD, 2University of Minnesota, Minneapolis, MN, 3Harvard Medical School, Boston, MA

    *Purpose: In addition to serving as fluid conduits, lymphatic vessels are critical portals for immune cell migration. Lymphatic endothelial cells (LECs) constitutively express high levels…
  • 2022 American Transplant Congress

    Ex Vivo Modification of Vascular Allografts Using Immunosuppressive and Anti-Inflammatory Polymers Prevent Rejection via Localized Immunosuppression

    H. D. Luo1, E. M. Siren1, W. Enns2, L. Sim1, C. Du1, S. G. Withers1, J. Choy3, J. N. Kizhakkedathu1

    1The University of British Columbia, Vancouver, BC, Canada, 2Simon Fraser University, Burnaby, BC, Canada, 3Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada

    *Purpose: Classical immunosuppressants lead to systemic immune shutdown, though necessary to mediate transplant rejection, it may lead to various complications. To reduce off-target immunosuppression while…
  • 2022 American Transplant Congress

    Type 1 Innate Lymphoid Cells Are Critical Pro-Inflammatory Effector Cells in a Fatty Liver Mouse Model of Ischemia-Reperfusion Injury

    J. Kang, J. Liggett, K. Oza, Y. Cui, K. Loh, D. Kwon, B. Kallakury, T. Fishbein, W. Cui, K. Kahn, A. Kroemer

    MedStar Georgetown Transplant Institute, Washington, DC

    *Purpose: Innate lymphoid cells (ILCs), the most recently described family of lymphoid cells, play fundamental roles in tissue homeostasis through the production of key cytokine…
  • 2022 American Transplant Congress

    Targeting the Bet Family Protein Brd4 Inhibits Inflammatory Macrophages and Promotes Heart Allograft Tolerance

    X. Xiao

    Surgery, Houston Methodist Hospital, Houston, TX

    *Purpose: Infiltration of allografts by inflammatory macrophages is frequently associated with chronic graft loss In both animal models and clinical settings, but the mechanisms that…
  • 2022 American Transplant Congress

    Normothermic Machine Perfusion in Liver Transplantation – Seven Year Experience at a Single North American Centre

    J. Hefler1, D. L. Izuierdo1, G. Meeberg2, M. Bral1, B. Anderson1, K. Dajani1, N. Kneteman1, D. L. Bigam1, A. Shapiro1

    1Department of Surgery, University of Alberta, Edmonton, AB, Canada, 2Alberta Health Services, Edmonton, AB, Canada

    *Purpose: Machine perfusion for preservation of liver grafts before transplantation has risen in prominence over the past decade. Normothermic machine perfusion (NMP), in particular, has…
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