ATC Abstracts

American Transplant Congress abstracts

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  • 2022 American Transplant Congress

    Long-Term Rejection Free Renal Allograft Survival with Fc-Modified Anti-cd154 Antibody Monotherapy in Nonhuman Primates

    G. Lassiter, T. Hirose, A. D’Attilio, T. Kawai

    MGH Center for Transplantation Sciences, Boston, MA

    *Purpose: Belatacept is currently the only FDA approved costimulatory blockade (CB) used as an alternative to calcineurin inhibitors in kidney transplantation. However, it has been…
  • 2022 American Transplant Congress

    Optimization of Human Liver Organoid Model for Nonalcoholic Fatty Liver Disease and Nonalcoholic Steatohepatitis

    Y. Park1, D. Thadasina1, K. Isidan1, K. J. Lopez1, A. Cross-Najafi1, P. Li1, H. Francis2, G. Alpini2, W. Zhang1, B. Ekser1

    1Surgery, Indiana University School of Medicine, Indianapolis, IN, 2Division of Gastroenterology & Hepatology, Indiana University School of Medicine, Indianapolis, IN

    *Purpose: The aim of our project is to develop an in vitro 3D human liver organoid (3D-HLO) model for studying nonalcoholic fatty liver disease (NAFLD)…
  • 2022 American Transplant Congress

    Comparison of Outcomes of Covid-19 Between Fully Vaccinated and Unvaccinated Kidney Transplant Recipients and According to the Type of M-RNA Vaccine

    F. Villanego1, M. Crespo2, V. Lopez3, S. Zarraga4, F. Oppenheimer5, L. Llinas2, A. Andres6, C. Diaz7, M. Ruiz8, F. Moreso9, A. Rodriguez-Benot10, I. Beneyto11, S. Cabello12, C. Jimenez13, C. Canal14, M. Molina15, J. Pascual6, A. Mazuecos1

    1Department of Nephrology, Hospital Puerta del Mar, Cadiz, Spain, 2Department of Nephrology, Hospital del Mar, Barcelona, Spain, 3Department of Nephrology, Hospital Regional de Malaga, Malaga, Spain, 4Department of Nephrology, Hospital de Cruces, Baracaldo, Spain, 5Department of Nephrology, Hospital Clinic, Barcelona, Spain, 6Department of Nephrology, Hospital 12 de Octubre, Madrid, Spain, 7Department of Nephrology, Hospital Central de Asturias, Oviedo, Spain, 8Department of Nephrology, Hospital Virgen de las Nieves, Granada, Spain, 9Department of Nephrology, Hospital Vall d'Hebron, Barcelona, Spain, 10Department of Nephrology, Hospital Reina Sofia, Cordoba, Spain, 11Department of Nephrology, Hospital La Fe, Valencia, Spain, 12Department of Nephrology, Hospital Son Espases, Palma de Mallorca, Spain, 13Department of Nephrology, Hospital La Paz, Madrid, Spain, 14Department of Nephrology, Fundacion Puigvert, Barcelona, Spain, 15Department of Nephrology, Hospital Germans Trias i Pujol, Badalona, Spain

    *Purpose: The evidence regarding the clinical effectiveness of COVID-19 vaccination in kidney transplant (KT) recipients is limited so far. Our purpose is to analyze the…
  • 2022 American Transplant Congress

    Incidence of Posttransplant Lymphoproliferative Disorder with Belatacept Therapy versus Calcineurin Inhibitor Therapy Alone: Data from One Academic Medical Center

    K. Addonizio1, G. Petrossian1, A. Hsiao1, L. Teixeira1, N. Koizumi2, R. James2, S. Patel3, R. Plews1, D. Conti1, J. Ortiz1

    1Division of Renal and Pancreatic Transplant Services, Albany Medical Center, Albany, NY, 2George Mason University, Fairfax, VA, 3UMC Las Vegas, Las Vegas, NV

    *Purpose: To compare rates of post-transplant lymphoproliferative disorder (PTLD) in patients treated with Belatacept and low-dose calcineurin inhibitors (CNIs) versus patients only treated with standard-dose…
  • 2022 American Transplant Congress

    Recipient and Center Factors Associated with Immunosuppression Practice Beyond the First Year After Liver Transplantation

    T. Bittermann1, D. Goldberg2

    1University of Pennsylvania, Philadelphia, PA, 2University of Miami, Miami, FL

    *Purpose: To investigate patient and center factors associated with differences in immunosuppression management in the first 5 years after LT.*Methods: A retrospective cohort of 11,326…
  • 2022 American Transplant Congress

    Selective CD28 Blockade Impacts T Cell Differentiation During Hematopoietic Reconstitution Following Lymphodepletion

    J. Habib, D. Liu, R. L. Crepeau, M. E. Wagener, M. L. Ford

    Emory University, Atlanta, GA

    *Purpose: Costimulation blockade targeting the CD28 pathway provides improved long-term transplant survival without the nephrotoxicity of calcineurin inhibitors. However, treatment with the CTLA-4Ig fusion protein…
  • 2022 American Transplant Congress

    Escalating Waitlist Mortality Above MELD 40: A Rationale to Uncap MELD 3.0?

    A. Kwong, A. Mannalithara, W. Kim

    Division of Gastroenterology and Hepatology, Stanford University, Stanford, CA

    *Purpose: MELD 3.0 is a recently proposed model that improves upon MELD-Na, incorporating sex and albumin as additional variables, updating existing coefficients and adding relevant…
  • 2022 American Transplant Congress

    Does ABO/HLA Matching Matter in Uterus Transplantation?

    L. Johannesson1, M. Askar1, A. Wall2, G. Testa1

    1Baylor University Medical Center, Dallas, TX, 2Baylor Scott and White Dallas, Dallas, TX

    *Purpose: Uterus transplantation (UTx) is the most commonly performed vascular composite allograft and is rapidly becoming an accepted treatment for absolute uterine-factor infertility (AUFI). There…
  • 2022 American Transplant Congress

    Donor-Specific Hyporesponsiveness Following Kidney Transplantation is Explained by Progressive Loss of Donor-Reactive Polyfunctional Cd4+ Effector Memory T Cells

    A. C. van der List, N. H. Litjens, M. Klepper, F. Prevoo, M. G. Betjes

    Internal Medicine, Erasmus MC, Rotterdam, Netherlands

    *Purpose: After kidney transplantation, donor-specific hyporesponsiveness (DSH) develops which is defined as a lowered response of alloreactive T cells to donor antigen while retaining response…
  • 2022 American Transplant Congress

    Surging Liver Transplant Rates for Alcohol-Associated Liver Disease May Exacerbate Waitlist Death of Patients with Hepatocellular Carcinoma in MMAT-3 Era

    L. Yuan1, J. L. Dodge1, K. Zhou1, N. Terrault2

    1Division of Gastrointestinal and Liver Diseases, University of Southern California, Los Angeles, CA, 2University of Southern California, Los Angeles, CA

    *Purpose: Rates of liver transplantation (LT) for alcohol-associated liver disease (ALD) have increased significantly, in part related to broader acceptance of severe alcohol hepatitis (AH)…
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