ATC Abstracts

American Transplant Congress abstracts

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  • 2018 American Transplant Congress

    Role of C1q-Binding Donor-Specific Anti-HLA Antibodies in Premature and Accelerated Kidney Allograft Interstitial Fibrosis

    K. Louis, D. Viglietti, O. Aubert, A. Loupy, C. Lefaucheur.

    Paris Translational Research Center for Organ Transplantation, Paris, France.

    The 2017 Banff meeting has focused on the importance of a precise diagnosis of IF/TA in kidney recipients by addressing specific etiological factors. Recent studies…
  • 2018 American Transplant Congress

    RNA Expression Profiling of Renal Allografts in the Cynomolgus Monkey Identifies Tolerance

    R. Smith,1 M. Matsunami,3 B. Adam,2 A. Rosales,1 T. Oura,3 A. Cosimi,3 T. Kawai,3 M. Mengel,2 R. Colvin.1

    1Pathology, Massachusetts General Hospital, Boston, MA; 2Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada; 3Department of Surgery, Massachusetts General Hospital, Boston, MA.

    IntroductionTolerance induction is a long standing clinical goal. However, identification remains elusive. Here we profile intra-renal allograft RNA expression in a mixed chimerism renal allograft…
  • 2018 American Transplant Congress

    Rituximab Interference in B-Cell Crossmatch: A Problem Solved

    P. Malvezzi,1 O. Senoussi,2 T. Jouve,1 C. De Palma,2 L. Rostaing,1 B. Bardy,2 D. Masson.2

    1Service de Néphrologie, Dialyse, Aphérèses et Transplantation, CHU Grenoble Alpes, Grenoble, France; 2Laboratoire d'Histocompatibilité, EFS Rhone Alpes, Grenoble, France.

    Background: Rituximab is commonly prescribed in ABO- or HLA-incompatible kidney transplantation. When used before transplant it interferes with B lymphocyte complement-dependent crossmatch (CDC CM) or…
  • 2018 American Transplant Congress

    A 3C Approach Drives Epigenetic Fixation of Foxp3 Expression and Stabilizes Treg Cell Lineage and Therapeutic Function

    X. Xiao, X. Zhang, J. Li, S. Chen, P. Lan, Y. Dou, W. Chen, X. Li.

    Immunobiology & Transplant Research Center, Houston Methodist Hospital, Houston, TX.

    The instability of the regulatory T (Treg) cell lineage precludes their therapeutic potential in transplantation and autoimmune diseases. Herein, we invented a novel approach to…
  • 2018 American Transplant Congress

    Cost Impacts of Alternative Kidney Transplant Immunosuppression: A National Cohort Study

    K. Lentine,1 D. Axelrod,2 V. Dharnidharka,3 H. Xiao,1 D. Brennan,4 D. Segev,4 H. Randall,1 R. Ouseph,1 A. Naik,5 N. Lam,6 T. Alhamad,3 B. Kasiske,7 G. Hess,8 M. Schnitzler.1

    1Saint Louis Univ, St. Louis; 2Lahey Clinic, Burlington; 3Washington Univ, St. Louis; 4Johns Hopkins, Baltimore; 5Univ Michigan, Ann Arbor; 6Univ Alberta, Edmonton, Canada; 7Hennepin County, Minneapolis; 8Symphony Health, Conshohocken.

    Economic outcomes are increasingly considered along with clinical efficacy to guide choice of alternative therapies. We examined the cost impact of kidney transplant (KTx) induction…
  • 2018 American Transplant Congress

    Long Term Histologic Allograft Health is Preserved Despite Rejection during Protocolized Immunosuppression Withdrawal (ISW) in Stable Pediatric Liver Transplant Recipients

    V. Venkat,1 J. Bucuvalas,2 M. Martinez,3 K. Spain,4 G. Mazariegos,1 A. Demetris,5 S. Feng.6

    1Children's Hospital, Pittsburgh; 2CCHMC, Cincinnati; 3Columbia, NY; 4Rho, Chapel Hill; 5UPMC, Pittsburgh; 6UCSF, San Francisco.

    Background: Long term allograft health after rejection during ISW has not been previously assessed. We compare baseline and 4yr graft histology of 20 rejectors in…
  • 2018 American Transplant Congress

    Longitudinal Molecular Assessment of Renal Allograft and Short-Term Outcome: Markers of Injury and Recovery

    S. Bontha,1 A. Fernandez,1 E. Bardhi,1 L. Gallon,2 V. Mas,1 D. Maluf.1

    1Surgery, UVA, Charlottesville; 2NWU, Chicago.

    Background: Ischemia reperfusion (I/R) is influenced by both donor and recipient characteristics and affects early graft function and the recovery process. To understand underlying mechanisms…
  • 2018 American Transplant Congress

    Primary Cytomegalovirus Infection in Seronegative Kidney Transplant Patients is Associated with Prolonged Cold Ischemic Time of Seropositive Donor Organs

    C. Falk,1,7 F. Schlott,2,7 K. Katsrintaki,1,7 D. Steubl,3 W. Puppe,4 C. Blume,5 H. Haller,6 L. Renders,3 U. Heemann,3 D. Busch,2 M. Neuenhahn.2,7

    1Institute of Transplant Immunology, IFB-Tx, Hannover Medical School, Hannover, Germany; 2Institute for Medical Microbiology, Immunology and Hygiene, Technical University Munich, Munich, Germany; 3Department of Nephrology, Technical University Munich, Munich, Germany; 4Institute of Virology, Hannover Medical School, Hannover, Germany; 5Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany; 6Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany; 7DZIF TTU-IICH, DZIF, Hannover / Munich, Germany.

    Introduction: Human Cytomegalovirus (CMV) infection is still a major risk factor for immunocompromised patients, e.g. kidney recipients. Based on the CMV serostatus of donor (D)…
  • 2018 American Transplant Congress

    Circulating Wnt Pathway Factors Are Non-Invasive Biomarkers of Transplant Vascular Injury

    M. Seifert,1 A. Malone,2 L. Boohaker,1 J. Gaut,2 S. Jain,2 D. Brennan,2,3 R. Mannon.1

    1UAB School of Medicine, Birmingham; 2Washington University, St. Louis; 3Johns Hopkins University, Baltimore.

    Purpose: Transplant vascular injury (TVI) is a major cause of renal allograft failure and is resistant to treatment. Non-invasive pathogenic biomarkers of TVI would provide…
  • 2018 American Transplant Congress

    What's Normal? An Evaluation of Pediatric T Cell Markers in Healthy Controls

    M. Sosniuk,1 A. Halpin,1,2,5,6,7 J. Wizniak,7 A. Szkotak,6,7 S. Urschel,1,2,5 L. Ionescu,1,2,5 L. West.1,2,3,4,5,6

    1Dept of Pediatrics, U of Alberta, Edmonton, Canada; 2Alberta Transplant Institute, Edmonton, Canada; 3Dept of MMI, U of Alberta, Edmonton, Canada; 4Dept of Surgery, U of Alberta, Edmonton, Canada; 5Canadian National Transplant Research Program, National, Canada; 6Dept of Laboratory Medicine, U of Alberta, Edmonton, Canada; 7Laboratory Medicine and Pathology, Alberta Health Services, Edmonton, Canada.

    INTRODUCTION: Studying pediatric patients includes challenges such as difficulty obtaining samples, limited normal controls and small volumes. Standardized flow cytometry (FC) lymphocyte immunophenotyping panels are…
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