ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Histocompatibility"

  • 2017 American Transplant Congress

    A Novel Computational HLA Matching Algorithm for Improving Donor-Recipient Histocompatibility and Graft Outcomes After Kidney Transplantation.

    V. Kosmoliaptsis,1 D. Mallon,1 S. Fuggle,2 R. Johnson,2 C. Watson,1 J. Bradley,1 C. Taylor.1

    1Department of Surgery, University of Cambridge, Cambridge, United Kingdom; 2NHS Blood and Transplant, Bristol, United Kingdom

    Introduction: Human Leukocyte Antigen (HLA) matching is a central objective of kidney allocation policies, but current assessment of histocompatibility is inadequate. Building on our previous…
  • 2017 American Transplant Congress

    HLA-DPA1 and HLA-DPB1 Frequencies in the US Populations.

    Z. Du, J. Patel, C. Braun, B. Norton.

    Pathology, Loyola University Medical Center, Maywood, IL

    Aim: HLA-DP antibodies can elicit positive crossmatches and be detrimental in organ transplantation. Although HLA-DP unacceptable antigens can be input in the UNOS database, they…
  • 2017 American Transplant Congress

    Eliminating False Positive Virtual Crossmatch Results for Lung Transplant Candidates by Using Multiple Antibody Testing Platforms.

    O. Timofeeva,1 M. Kashem,2 S. Geier,1 D. Grogan,2 S. Keshavamurthy,2 J. Gomez-Abraham,2 Y. Toyoda,2 F. Cordova.2

    1Department of Pathology and Laboratory of Medicine, Temple University, Lewis Katz School of Medicine, Philadelphia, PA; 2Department of Cardiovascular Surgery, Temple University, Lewis Katz School of Medicine, Philadelphia, PA

    Purpose: At present, immunologic risk for lung transplant patients is evaluated based on Virtual crossmatch (VXM) by comparing recipient's HLA antibodies detected by Single antigen…
  • 2016 American Transplant Congress

    Blocking Fc Receptor in Flow Cytometric Crossmatch: Refining an Old Assay to Improve Patient Management.

    N. Brown, J. Wang, S. Marino.

    Pathology, University of Chicago, Chicago, IL.

    Introduction: The crossmatch assay is used to determine sensitization of solid organ transplant recipients to donor-expressed HLA molecules, a potential contraindication to transplant. Multicolor flow…
  • 2016 American Transplant Congress

    Increased Access to Transplantation of Highly Sensitized Patients Facilitated by the New Kidney Allocation System.

    A. Colovai, M. Ajaimy, C. Savchik, S. Chan, P. Masiakos, J. Rocca, E. Akalin.

    Abdominal Transplant, Montefiore Medical Center, Bronx, NY.

    The purpose of our study was to evaluate the impact of the new kidney allocation system (KAS 2014) on the access to transplantation of HLA…
  • 2016 American Transplant Congress

    Immunogenic HLA-DR Eplet Mismatches as Predictors of Transplant Glomerulopathy.

    D. Blum,1 K. Tinckam,2 M. Marrari,3 J. Kim,2 R. Sapir-Pichhadze.1

    1McGill University, Montreal, Canada; 2University Health Network, Toronto, Canada; 3University of Pittsburgh Medical Center, Pittsburgh.

    BackgroundThe number of HLA-DR eplet mismatches (eplet load) is a risk factor for the development of anti-HLA antibodies and transplant glomerulopathy (TG). In the case…
  • 2016 American Transplant Congress

    Complex Constellation of HLA Antibodies Contributes to Decreasing Trend of Transplant Rate in Candidates with 100% CPRA.

    R. Rajalingam, D. Hyon Gae, D. Kopchaliiska, O. Buenaventura, K. Cunniffe, G. Da Gente, J. Roberts.

    Immunogenetics and Transplantation Laboratory; Department of Surgery, University of California-San Francisco, San Francisco, CA.

    The key component of new KAS is offering an increased priority for sensitized candidates. While transplants (tx) have increased six-fold for recipients with a CPRA…
  • 2016 American Transplant Congress

    Prognosis Value of the Presence and Persistence of C1q Binding Anti-HLA Antibodies in Acute Antibody-Mediated Rejection in Kidney Transplantation.

    E. Bailly,1 B. Proust,2 M. Giral,3 V. Vuiblet,4 V. Chatelet,5 E. Morelon,6 P. Malvezzi,7 S. Caillard,8 B. Barrou,9 L. Couzi,10 J. Sayegh,11 C. Mousson,12 D. Anglicheau,13 P. Grimbert,14 M. Hazzan,15 G. Mourad,16 R. Purgus,17 P. Westeel,18 Y. Lebranchu,1,19 M. Büchler.1,19

    1CHU, Tours, France; 2EFS Centre Atlantique, Tours, France; 3ITUN, Nantes, France; 4CHU, Reims, France; 5CHU, Caen, France; 6CHU, Lyon, France; 7CHU, Grenoble, France; 8CHU, Strasbourg, France; 9Hôpital la Pitié Salpêtrière, Paris, France; 10CHU, Bordeaux, France; 11CHU, Angers, France; 12CHU, Dijon, France; 13Hôpital Necker, Paris, France; 14Hôpital Henri Mondor, Paris, France; 15CHU, Lille, France; 16CHU, Montpellier, France; 17CHU, Marseille, France; 18CHU, Amiens, France; 19Université F. Rabelais, Tours, France.

    Purpose : Longitudinal study of C1q complement fraction binding capacity of donor specific anti-HLA antibodies (DSAs) as a pronostic marker in acute antibody-mediated rejection.Methods :…
  • 2016 American Transplant Congress

    Anti-HLA Antibodies in Allogeneic and Autologous Hematopoietic Stem Cell Transplantation.

    A. Bertocchi, L. Requiao-Moura, M. Torres, E. Tonato, M. Durao Junior, A. de Matos, N. Hamershclak, A. Pacheco-Silva.

    Kidney Transplantation, Hematology, Histocompatibility Laboratory, Hospital Israelita Albert Einstein, Sao Paulo, Brazil.

    Introduction: Anti-HLA antibodies have been associated with graft rejection in solid organ and hematopoietic stem cell transplantation (HSCT). The aim of this study was describe…
  • 2016 American Transplant Congress

    Optimized Flow Cytometry Crossmatch with Increased Sensitivity and Specificity.

    K. Barrios,1 J. Lunz,1 B. Labuda,1 D. Magas,1 D. Freedom,1 K. Szewczyk,1 M. Jendrisak,1 A. Jaramillo.1,2

    1Gift of Hope Organ & Tissue Donor Network, Itasca, IL; 2Department of Laboratory Medicine and Pathology, Mayo Clinic, Phoenix, AZ.

    The flow cytometry crossmatch (FCXM) is the standard method to prevent hyperacute rejection after transplantation. Surprisingly, few technical improvements have been introduced to the FCXM…
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