ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Alloantibodies"

  • 2016 American Transplant Congress

    Metallothionein Accelerates Anti-MHC Induced Small Airway Obliteration and Fibrosis by Negatively Regulating IL-10 and Regulatory Cells.

    D. Nayak,1,2 F. Zhou,1 N. Benshoff,1 T. Mohanakumar.1,2

    1Washington Univ Sch Med, St. Louis, MO; 2Norton Thoracic Institute, St. Joseph Hospital, Phoenix, AZ.

    Development of bronchiolitis obliterans syndrome (BOS), chronic lung allograft rejection, is a major obstacle to long-term success from lung transplantation. De novo antibodies (Abs) to…
  • 2016 American Transplant Congress

    Fc Receptor Binding Assay for Functional Assessment of HLA Antibodies: Initial Clinical Validation.

    E. Woodle, A. Girnita.

    U of Cincinnati, Cincinnati.

    Functional assessment of HLA antibodies (Abs) has historically been limited to complement-based assays, which have known limitations. Moreover, HLA Abs mediate injury by complement-independent mechanisms,…
  • 2016 American Transplant Congress

    Eculizumab for Chronic Antibody-Mediated Injury in Kidney Transplant Recipients: A Randomized-Controlled Trial.

    S. Kulkarni,1 N. Kirkiles-Smith,2 Y. Deng,3 R. Formica,4 M. Gilbert,5 V. Broeckner,6 L. Bow,1 J. Pober.2

    1Surgery, Yale University, New Haven, CT; 2Immunobiology, Yale University, New Haven, CT; 3Yale Center for Analytical Sciences, Yale School of Public Health, New Haven, CT; 4Medicine, Yale University, New Haven, CT; 5Pathology, Yale University, New Haven, CT; 6Histopathology, Univeristy of Cambridge, Cambridge, United Kingdom.

    Purpose: We hypothesize that de novo donor specific antibody (DSA) in kidney transplant patients cause endothelial cell injury that is dependent on complement and treatment…
  • 2016 American Transplant Congress

    Posttransplant AT1Rabs Precede De Novo HLA-DSA Development.

    J. Arreola-Guerra,3 E. Cuevas,1 E. Hernandez-Mendez,1 M. Vilatoba,1 A. Contreras,1 J. Ramirez,1 D. de Rongs,1 J. Granados,1 L. Morales-Buenrostro,2 J. Alberu.1

    1Transplantation, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico; 2Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico; 3Tranplantation, Instituto de Servicios de Salud del Estado de Aguascalientes, Aguascalientes, Mexico.

    Angiotensin II type 1 receptor antibodies (AT1Rabs) have been associated with acute allograft rejection and graft loss. The possible implication of the generation of de…
  • 2016 American Transplant Congress

    Successful Treatment of Established Acute Allograft Rejection with Delayed CTLA-4Ig.

    J. Young,1 J. Chen,1 D. Yin,1 R. Sciammas,2 V. Vu,1 M.-L. Alegre,3 A. Chong.1

    1Transplant Surgery, University of Chicago, Chicago, IL; 2Medicine, Houston Methodist Research Institute, Houston, TX; 3Medicine, University of Chicago, Chicago, IL.

    Purpose: Our goal was to determine the efficacy and immune mechanisms of costimulation blockade by CTLA-4Ig when treatment begins after an immune response is already…
  • 2015 American Transplant Congress

    Impact of Pretransplant Pregnancy On Immunization and Immunologic Outcome in Kidney Transplantation

    O. Staeck,1 D. Khadzhynov,1 S. Kreimer,1 E. Rajakangas,1 C. Schönemann,2 N. Lachmann,2 K. Budde,1 F. Halleck.1

    1Nephrology, Charité Universitätsmedizin, Berlin, Germany; 2Zentrum für Transfusionsmedizin, Charité Universitätsmedizin, Berlin, Germany.

    BACKGROUND:The detailed impact of pretransplant pregnancy on HLA alloimmunization and outcome after kidney transplantation is so far not well known.PATIENTS AND METHODS:A retrospective single center…
  • 2015 American Transplant Congress

    Quantifying the Survival Benefit of HLA-Incompatible Kidney Transplantation: A Multi-Center Study

    B. Orandi, X. Luo, A. Massie, J. Garonzik-Wang, B. Lonze, R. Ahmed, K. Van Arendonk, R. Montgomery, D. Segev.

    Surgery, Hopkins, Baltimore, MD.

    A single center study has demonstrated a two-fold survival benefit of incompatible live donor kidney transplant (ILDKT) compared to remaining on dialysis. We sought to…
  • 2015 American Transplant Congress

    Maintaining Immunosuppressive Treatment After Early Allograft Nephrectomy Does Not Reduce the Risk of Anti-HLA Allo-Sensitization

    A. Del Bello,1,2 N. Congy-Jolivet,2,3,4 I. Cardeau-Desangles,1 C. Guilbeau-Frugier,2,5 E. Pambrun,1 G. Dörr,1 O. Milioto,6 L. Esposito,1 L. Rostaing,1,2,7 N. Kamar.1,2,7

    1Nephrology, Dialysis and Organ Transplantation, CHU Rangueil, Toulouse, France; 2Université Paul Sabatier, Faculté de Médecine, Toulouse, France; 3Molecular Immunogenetics Laboratory, EA 3034, Faculté de Médecine Purpan, IFR150, Toulouse, France; 4Department of Immunology, CHU Rangueil, Toulouse, France; 5Department of Pathology, CHU Rangueil, Toulouse, France; 6Nephrology, Clinique Saint-Exupery, Toulouse, France; 7INSERM U1043, IFR–BMT, CHU Purpan, Toulouse, France.

    BackgroundAnti-HLA immunization is greatly increased after early kidney-allograft failure, even if the graft is removed within a few hours post-transplantation. The aim of our study…
  • 2015 American Transplant Congress

    Distinct Subtypes of Rejection in a Novel Non Human Primate Model of Sensitization

    C. Burghuber,1,2 J. Kwun,1,3 F. Leopardi,3 A. Gibby,1 A. Farris,1 N. Iwakoshi,1 S. Knechtle.1,3

    1Emory University, Atlanta, GA; 2Medical University Vienna, Vienna, Austria; 3Duke University, Durham, NC.

    [Background] Preformed and newly formed alloantibody post transplantation (TX) can significantly deteriorate graft survival. Patterns of humoral rejection in sensitized patients varies significantly due to…
  • 2015 American Transplant Congress

    Furthering the Link Between Ischemia and Immunity: Development of New Antibody Following Prolonged Delayed Graft Function

    A. Gilbert,1 E. Hall,1 O. Timofeeva,2 M. Awwad,2 M. Grafals,1 P. Weems,1 D. Li,2 S. Rosen-Bronson,2 J. Moore,1 B. Javaid,1 M. Cooper.1

    1Department of Surgery, MedStar Georgetown Transplant Institute, Washington, DC; 2Department of Pathology, MedStar Georgetown Transplant Institute, Washington, DC.

    Introduction The purpose of this study is to examine the relationship between prolonged ischemia (delayed graft function - DGF) and the development of de novo…
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