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American Transplant Congress abstracts

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Articles tagged "T cells"

  • 2018 American Transplant Congress

    Type I NKT Cells Augment Humoral and Cellular Alloimmunity in Response to Hepatocyte Transplantation

    S. Elzein, J. Zimmerer, B. Ringwald, C. Avila, G. Bumgardner.

    Surgery, The Ohio State University Wexner Medical Center, Columbus, OH.

    Hepatocyte transplantation (HcTx) is a potential therapeutic modality for patients with liver disease. Despite examples of antigen acceptance in the liver, allogeneic HcTx into patients…
  • 2018 American Transplant Congress

    An Individualized Strategy Using Virus and Immune-Based Markers to Prevent Cytomegalovirus Disease after Face Transplantation

    R. Razonable, H. Amer, S. Mardini.

    Mayo Clinic, Rochester, MN.

    Introduction: There is limited data on CMV prevention after face transplantation. We report an individualized approach using prophylaxis followed by surveillance and preemptive therapy guided…
  • 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…
  • 2018 American Transplant Congress

    Lymphocyte Proportions Post Thymectomy Are Associated with Allergic Disorders in Heart Transplanted Children

    T. Kim,1 L. Ionescu,1,2,3 N. Avdimiretz,4 M. Larsen,1,2,3 F. Murdoch,1,2 B. Motyka,1,2,3 S. Gilmour,1,2 L. West,1,2,3 S. Urschel.1,2,3

    1Pediatrics, University of Alberta, Edmonton, AB, Canada; 2Stollery Children's Hospital, Edmonton, AB, Canada; 3Alberta Transplant Institute, Edmonton, Canada; 4The Hospital for Sick Children, Toronto, Canada.

    Background: Allergic disorders are more common in pediatric heart transplant (HTx) recipients than non-transplanted children, with young age at HTx and thymectomy being risk factors.…
  • 2017 American Transplant Congress

    B Cell-Derived Cytokines Rather Than T/B Cognate Interactions Mediate CD8 T Cell Reconstitution Following Lymphoablation.

    D. Zwick, K. Ayasoufi, R. Fan, V. Gorbacheva, K. Keslar, R. Fairchild, A. Valujskikh.

    Immunology, Cleveland Clinic, Cleveland, OH

    Antibody-mediated lymphoablation is a commonly used induction therapy in sensitized transplant recipients. Using murine anti-thymocyte globulin (mATG) in a model of BALB/c (H-2d) to B6…
  • 2017 American Transplant Congress

    Maximizing the Potential of Treg-Based Therapies for Transplant Rejection via Computational Immune-Modeling: Effect of Dose, Timing, and Distribution.

    G. Raimondi,1 A. Arun,1 O. Dorabiala,2 J. Arciero.3

    1Plastic & Reconstructive Surgery, Johns Hopkins University, Baltimore; 2Mathematics, Pennsylvania State University, Philadelphia; 3Mathematical Sciences, Indiana University-Purdue University Indianapolis, Indianapolis

    Purpose. Regulatory T cells (Treg), endogenous regulators of the immune system, have a significant therapeutic potential for prevention of transplant rejection. Experimental evidences however, indicate…
  • 2017 American Transplant Congress

    Evaluating T Cell Repopulation Post Alemtuzumab Induction with a Belatacept-Based Regimen.

    V. Bendersky, H. Xu, A. Kirk.

    Department of Surgery, Duke University, Durham, NC

    We reported that alemtuzumab induction followed by belatacept-sirolimus based immunosuppression effectively prevents costimulation blockade resistant rejection (CoBRR). This study investigates the phenotypic characteristics of repopulating…
  • 2017 American Transplant Congress

    The Transcription Factor Batf and IRF1 Controls IL-10/IL-27 Expression in Dendritic Cells and Transplant Tolerance Induction.

    G. Gu, H. Hang, Q. Xia.

    Department of Hepatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China

    Objective: To explore the effect of Batf and IRF1 on IL-10/IL-27 expression in DCs during transplant tolerance induction.Methods: Allogeneic heart transplants were performed between WT…
  • 2017 American Transplant Congress

    Impact of T-Cell Depletion on CMV-Specific Memory T and B Cell Homeostatic Proliferation After Kidney Transplantation.

    M. Jarque,2 S. Luque,2 E. Crespo,2 E. Melilli,1 J. Torras,1,2 J. Grinyó,1,2 O. Bestard.1,2

    1Kidney Transplant Unit, Bellvitge University Hospital, Barcelona, Spain; 2Nephrology Laboratory, IDIBELL, Barcelona, Spain

    Human CMV infection is the most common opportunistic infection after kidney transplantation, with a negative impact on kidney allograft outcome. Transplant recipients are at higher…
  • 2017 American Transplant Congress

    Utility of IL-2 Complexes in Promoting Vascularized Composite Allograft Survival.

    H. Xu,1 S. Dahiya,2 L. Wang,2 T. Akimova,2 W. Hancock,2,4 S. Levin.3

    1Plastic and Reconstructive Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; 2Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia; 3Orthopaedic Surgery, Hospital of the University of Pennsylvania, Philadelphia; 4Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia

    Vascularized composite allografts (VCA) are a novel, life-enhancing form of transplantation (Tx). The complexity of host immune responses to VCA tissues, especially those involving skin,…
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