ATC Abstracts

American Transplant Congress abstracts

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  • 2020 American Transplant Congress

    Flow Cytometric Characterization of Regulatory Cell Populations Expanded Ex Vivo from PBMCs of Kidney Transplant Recipients

    S. Tripathi1, P. L. Martin-Moreno2, G. J. Kavalam1, A. Chandraker1

    1Renal, Brigham and Women's Hospital, Boston, MA, 2Nephrology, Clinica Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain

    *Purpose: We have previously shown that it is possible to generate alloantigen-specific regulatory T cell lines and clones that prolong allograft survival upon infusion in…
  • 2020 American Transplant Congress

    Decreased Anti-Tumor Activity of Liver-Resident NK Cells via IL-33 Associated with Portal Hypertension after Living Donor Liver Transplantation

    Y. Imaoka, M. Ohira, K. Sato, H. Ohdan

    Hiroshima Uni., Hiroshima, Japan

    *Purpose: It has been reported that increasing portal vein pressure after living donor liver transplantation (LDLT) was associated with a poor prognosis, risk factors for…
  • 2020 American Transplant Congress

    B Cell Depletion with Anti-CD20 mAb Exacerbates Anti-Donor CD4+ T Cell Responses in Highly Sensitized Transplant Model

    A. Tanaka, K. Ide, Y. Tanaka, M. Ohira, H. Tahara, H. Morimoto, H. Ohdan

    Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan

    *Purpose: Preformed donor-specific anti-human leukocyte antigen antibodies (DSAs) have been associated with detrimental effects in transplant recipients. To eliminate preformed DSAs, we desensitized DSA-positive recipients…
  • 2020 American Transplant Congress

    Effect of Low vs Standard Dosage of Anti-Thymocyte Globulin Induction Therapy on the Co-Inducible Molecules (Cd28, CTLA-4, ICOS, PD-1) Expression Pattern in T Regulatory Cell

    G. Queipo1, A. Hernandez-Mendoza1, M. Estrada-Matus2, M. Fonseca-Sanchez1, F. Oviedo1, L. García-Cobarruvias3, J. Prieto Chávez4, L. Pizarro5, L. Morales-Buenrostro6

    1Human Genetics, Hospital General de Mexico-Eduardo Liceaga Facultad de Medicina UNAM, Mexico City, Mexico, 2Nephrology, Instituno Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico, 3Transplant Unit, Hospital General de Mexico-Eduardo Liceaga, Mexico City, Mexico, 4Flow Cytometry Core, Mexican Social Security Institute, Mexico City, Mexico, 5Unit on Immunochemistry, Medical Research, Specialties Hospital of the National Medical Centre “SigloXXI”, Mexico City, Mexico, 6Nephrology, Instituto Nacional de Ciencias Medicas y Nutrición Salvador Zubirán, Mexico City, Mexico

    *Purpose: Two thymoglobulin (TG) dosages effect on the Tregulatory cell (Treg) and describe the behavior of the co-stimulatory pathways in terms of FIM and gene…
  • 2020 American Transplant Congress

    Prevalence of Frailty and Cognitive Impairment at Time of Kidney Transplant Evaluation

    J. Klein, A. Jurgensen, M. Gupta, N. Herrera, A. Gupta, D. Cibrik

    Internal Medicine, Division of Nephrology, University of Kansas Medical Center, Kansas City, KS

    *Purpose: Frailty is highly prevalent in kidney disease, with prevalence estimates as high as 73% in patients at the time of dialysis initiation compared to…
  • 2020 American Transplant Congress

    Factors Influencing Background Cell-Free DNA Levels: Implications for Donor-Derived Cell-Free DNA Assessment in Transplant Patients

    P. Gauthier, A. Aleshin, S. Shchegrova, T. Mckenna, E. Kalashnikova, S. Sharma, H. Sethi, R. Salari, R. Swenerton, Z. Demko, B. Zimmermann, P. Billings

    Natera, Inc., San Carlos, CA

    *Purpose: Detecting elevated levels of donor-derived cell-free DNA (dd-cfDNA) in the plasma of transplant recipients has been used as a metric to determine graft injury…
  • 2020 American Transplant Congress

    A Video Education Intervention to Improve Kidney Transplant Knowledge and Willingness to Complete Transplant Evaluation in Dialysis Patients

    D. A. DuBay1, T. A. Morinelli1, Z. Sutton1, M. Chastain1, T. Thompkins Tindal1, Z. Su2, E. Weeda3, P. Mauldin4, M. Casey1, J. Bian2, D. Taber1, P. K. Baliga1

    1Surgery, Division of Transplant Surgery, Medical University of South Carolina`, Charleston, SC, 2General Internal Medicine, Medical University of South Carolina`, Charleston, SC, 3Clinical Pharmacy-Outcomes Sciences, Medical University of South Carolina`, Charleston, SC, 4General Internal Medicine, Medical University of South Carolina, Charleston, SC

    *Purpose: The Centers for Medicare and Medicaid Services has set a goal of 30% (currently 18.5%) of dialysis patients to be on a transplant (Tx)…
  • 2020 American Transplant Congress

    Medical and Psychosocial Reasons for Deferral and Denial Following Kidney Transplant Evaluation at a VA Transplant Center

    D. Katz1, E. Siniff2, M. L. Sanders3, P. Manay1, P. Ten Eyck4

    1Surgery, University of Iowa, Iowa City, IA, 2Transplant, Iowa City Veterans Affairs Hospital, Iowa City, IA, 3Internal Medicine, University of Iowa, Iowa City, IA, 4ICTS, University of Iowa, Iowa City, IA

    *Purpose: VA kidney transplant patients present challenges that may limit their listing opportunities in the private sector. We sought to study the medical and psychosocial…
  • 2020 American Transplant Congress

    Anti-Thymocyte Globulins Induced Immunomodulatory Effect and Increased Regulatory T Cell in a In Vitro Model of Allogeneic Cell Coculture

    M. Colladant1, J. Lion2, P. Saas3, S. Perruche3, D. Ducloux1, N. Mooney2, J. Bamoulid1

    1Nephrologie, Dialyse et Transplantation, CHU de Besançon, Besancon, France, 2Equipe INSERM: Endothelium, Inflammation et Alloreactivity INSERM UMR-S 976, Paris, France, 3INSERM U1098 RIGHT, Université de Franche-Comté EFS Bourgogne Franche-Comté, Besancon, France

    *Purpose: Two types of Anti-Thymocyte Globulins (ATG) are commonly used in renal transplantation (Thymoglobuline and Grafalon) and induce severe, dose-dependent and sometimes persistent CD4+ T…
  • 2020 American Transplant Congress

    Belatacept Monthly Therapy: Transplant Recipients’ Experience

    S. N. Little1, É. N. Arsenault Knudsen2, D. A. Mandelbrot1

    1Transplant, University of Wisconsin Hospital and Clinics, Madison, WI, 2University of Wisconsin Hospital and Clinics, Madison, WI

    *Purpose: While graft and patient outcomes with belatacept have been relatively well documented, the decision to use belatacept for kidney transplant recipients rests in part…
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