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American Transplant Congress abstracts

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Articles tagged "HLA antibodies"

  • 2015 American Transplant Congress

    Antibodies Directed Against HLA-DQ Are Significantly Associated to Complement Activation In Vitro

    J. Arreola-Guerra, A. de Santiago, A. Arvizu, N. Gonzalez-Tableros, M. Lopez, M. Vilatoba, L. Morales-Buenrostro, J. Alberu, N. Castelan.

    1Transplantation, 1aNephrology-Mineral Metabolism, Inst Nal de Ciencias Medicas y Nutricion SZ, Mexico City, Distrito Federal, Mexico.

    Background: C1q-binding HLA antibodies (HLAabs) have been related to acute rejection and long-term graft loss. The characteristics of these antibodies and factors associated to complement…
  • 2015 American Transplant Congress

    Post-Kidney Allograft Nephrectomy Anti-HLA Immunization Is Not Due to a Release of Anti-HLA Antibodies from the Failed Kidney

    D. Milongo,1,3 N. Congy-Jolivet,2,3,4 A. Del Bello,1,3 F. Sallusto,5 C. Guilbeau-Frugier,6 L. Rostaing,1,3 N. Kamar.1,3

    1Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France; 2Laboratoire d'Immunologie, CHU de Toulouse, Toulouse, France; 3Université Toulouse III Paul-Sabatier, Toulouse, France; 4Laboratoire d'Immunogénétique Moléculaire, EA 3034, Université Toulouse III Paul-Sabatier, Toulouse, France; 5Department of Urology, CHU Rangueil, Toulouse, France; 6Department of Histopathology, CHU Rangueil, Toulouse, France.

    Background and aims: The reasons for the increased incidence of de novo anti-HLA donor specific antibodies (DSAs) that is observed after kidney allograft nephrectomy (NTx)…
  • 2015 American Transplant Congress

    Intermittent High Dose Intravenous Immunoglobulin as Treatment for Donor Specific Antibodies in Renal Transplant Recipients

    P. Bolin,1 K. Parker,2 F. Rana,1 W. Bryant,1 P. Jawa,1 R. Harland.3

    1Internal Medicine, East Carolina University, Brody School of Medicine, Greenville, NC; 2Vidant Medical Center, Greenville, NC; 3Surgical Immunology and Transplantation, East Carolina University, Brody School of Medicine, Greenville, NC.

    Background: Donor-specific HLA antibody (DSA) formation in post-renal transplant patients is associated with chronic rejection and graft failure. Previous studies in our population have indicated…
  • 2015 American Transplant Congress

    Prediction of Acute Antibody Mediated Rejection in Antibody Incompatible Renal Transplantation Using Machine Learning for Wide Data

    T. Shaikhina,1 N. Khovanova,1 S. Daga,1,3 N. Krishnan,2 D. Lowe,3 D. Mitchell,1 D. Briggs,2 R. Higgins.3

    1University of Warwick, Coventry, United Kingdom; 2NHS Blood and Transplant, Birmingham, United Kingdom; 3University Hospitals Coventry and Warwickshire, Coventry, United Kingdom.

    The dynamic field of renal transplantation is characterised by limited access to data, the high cost of equipment and underlying complexity of immunological responses to…
  • 2015 American Transplant Congress

    Retrospective Cohort Study Concerning Efficacy and Safety of Bortezomib in Combination With Or Without Rituximab in Antibody Mediated Rejection in Renal Transplant Recipients

    M. Duerr, N. Lachmann, K. Budde, J. Waiser.

    Charité Universitätsmedizin Berlin, Department of Nephrology, Berlin, Germany.

    Treatment of antibody-mediated rejection (AMR) in renal transplant (tx) patients (pts) is still challenging and long-term outcome remains unsatisfying. Because plasma cells (PCs) are crucial…
  • 2015 American Transplant Congress

    Husband to Wife Renal Transplants Are Associated With a Higher Risk of Early Antibody Mediated Rejection and Transplant Glomerulopathy

    H. Sawhney, M. Willicombe, P. Brookes, E. Santos, D. Taube.

    Renal and Transplant Centre, Hammersmith Hospital, Imperial Healthcare NHS Trust, London, England, United Kingdom.

    Patients with a low level preformed donor specific antibodies [DSA] with a negative FCXM/CDC cross match are at high risk of antibody mediated rejection [AMR]…
  • 2015 American Transplant Congress

    CPRA Values Are Substantially Increased for Some Candidates Subsequent to Inclusion of Unacceptable C-locus (UA-C) Antigens While Listing Practices Remain Unchanged

    A. Kucheryavaya,1 R. Bray,2 A. Miller,1 D. Tyan.3

    1UNOS, Richmond; 2Emory University Hospital, Atlanta; 3Stanford University, Palo Alto.

    Background: CPRA is the % of deceased donors expected to have one or more UAs with a given candidate. Prior to 12/5/13, candidates with UA-C…
  • 2015 American Transplant Congress

    Immunoglobulin G Donor-Specific Anti-HLA Antibody Subclasses and Kidney Allograft Antibody-Mediated Injury

    D. Viglietti,1,2 C. Bentlejewski,3 J.-P. Duong van Huyen,4,2 D. Vernerey,5,2 O. Aubert,2 J. Verine,1 X. Jouven,2 C. Legendre,4 D. Glotz,1 A. Loupy,2,4 A. Zeevi,3 C. Lefaucheur.1,2

    1Saint-Louis Hospital, Paris, France; 2Paris Translational Research Center for Organ Transplantation - INSERM U970, Paris, France; 3University of Pittsburgh Medical Center, Pittsburgh; 4Necker Hospital, Paris, France; 5CHRU de Besançon, Besançon, France.

    Experimental and clinical data suggest that antibodies have different pathogenicities according to their IgG subclasses. We investigated the association between IgG subclasses of circulating anti-HLA…
  • 2015 American Transplant Congress

    De Novo Donor-Specific HLA Antibodies After Kidney Transplantation Are Associated With Donation After Circulatory Death and HLA-DQ Mismatch

    G. Dreyer,1 D. Roelen,2 S. Brand-Schaaf,2 O. Dekkers,3 M. Reinders,1 F. Claas,2 J. de Fijter.1

    1Nephrologie, LUMC, Leiden, Netherlands; 2Immunohaematology and Blood Transfusion, LUMC, Leiden, Netherlands; 3Clinical Epidemiology, Aarhus Medical Center, Aarhus C, Denmark.

    Introduction: De novo donor-specific HLA-antibodies (dnDSA) have been associated with rejection and inferior kidney graft survival. The purpose of this study was to investigate the…
  • 2015 American Transplant Congress

    C1q Reactivity and IgG Subtypes After HLA Antibody Removal Therapy With Carfilzomib in Thoracic Transplant Recipients

    A. Zeevi, M. Marrari, C. Bentlejewski, J. Pilewski, M. Morrell, J. McDyer, M. Shullo, J. Teuteberg, C. Bermudez, C. Ensor.

    Univ of Pittsburgh, Pittsburgh.

    Conventional therapies for antibody removal consisting of plasma exchange with IVIG and Rituximab are partially effective in desensitization protocols and for treatment of antibody mediated…
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