ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Primates"

  • 2015 American Transplant Congress

    Selective Blockade of the CD28/B7/CTLA4 Pathway With Monovalent Anti-CD28 Antibodies Versus Targeting of B7 With CTLA4-Ig, in Non-Human Primate Kidney Allograft

    S. Ville,1 N. Poirier,1,2 B. Vanhove,1,2 G. Blancho.1

    1INSERM, UMR1064, ITUN, Nantes, France; 2Effimune SAS, Nantes, France.

    B7 molecules on antigen-presenting cells interact with CD28 and CTLA4 on T lymphocytes to control TCR-mediated signals. Whereas it is highly efficient to block T…
  • 2015 American Transplant Congress

    Impact of Human Mutant TGF-β1/Fc Protein On Memory and Regulatory CD4+T Cells Following Lymphodepletion in Rhesus Monkeys

    H. Guo,1 L. Lu,1 R. Wang,2 H. Abdulkerim,2 R. Keith,2 A. Thomson,1 M. Ezzelarab.1

    1Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA; 2MassBiologics, University of Massachusetts Medical School, Boston, MA.

    Background:Tolerance to allografts is essential to avoid chronic immunosuppression and to promote long term graft function. Transforming growth factor- β plays a key role in…
  • 2015 American Transplant Congress

    Immunosuppression With Anti-CD40 mAb and Rapamycin for Islet and Kidney Co-Transplantation in Nonhuman Primates

    T. Oura, K. Hotta, J. Lei, J. Markmann, A. Dehnadi, G. Benichou, B. Cosimi, T. Kawai.

    Transplant Center, Massachusetts General Hospital, Boston, MA.

    Background: For patients with end-stage renal disease secondary to type 1 diabetes mellitus, islet and kidney co-transplantation can be an ideal transplant option. However, a…
  • 2015 American Transplant Congress

    Anti-CD122 + Costimulation Blockade Prolongs Allograft Survival

    D. Mathews,1 L. Higginbotham,1 Y. Dong,1 C. Breeden,1 C. Larsen,1 J. Tso,2 A. Adams.1

    1Emory Transplant Center, Emory University, Atlanta, GA; 2JN Bioscience, Mountanview, CA.

    Introduction: Effective T cell activation and effector function requires (1) cognate antigen recognition (2) appropriate costimulation and (3) successful cytokine signaling. Recently approved strategies to…
  • 2015 American Transplant Congress

    Heart En Bloc Thymus Transplantation Permits Long-Term, Acute Rejection-Free Cardiac Allograft Survival in Nonhuman Primates (NHPs)

    M. Tonsho,1 P. Spencer,1 T. Millington,1 A. Muniappan,1 A. Tena,2 R. Smith,3 R. Colvin,3 J. Allan,1,2 J. Madsen.1,2,4

    1MGH Transplant Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA; 2Transplantation Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA; 3Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA; 4Cardiac Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA.

    BACKGROUNDThe role of vascularized thymus on tolerance induction has been well studied in swine recipients of kidney allografts, but not in NHP recipients of heart…
  • 2015 American Transplant Congress

    Kidney Versus Islet Allograft Survival After Induction of Mixed Chimerism in Nonhuman Primates

    T. Oura, D. Ko, J. O'Neil, S. Boskovic, O. Nadazdin, K. Hotta, K. Kawai, B. Cosimi, T. Kawai.

    Transplant Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA.

    Background: We have previously reported a successful induction of mixed chimerism and the long-term acceptance of renal allografts in MHC-mismatched nonhuman primates. In this study,…
  • 2015 American Transplant Congress

    Establishment of Diabetes Modeling in Common Marmoset

    W. Yuan,1 S. Fukuda,1 T. Inoue,2 D. Chujo,1 H. Okochi,1 E. Sasaki,2 M. Shimoda.1

    1National Center for Global Health and Medicine, Tokyo, Japan; 2Central Institute for Experimental Animals, Kawasaki, Japan.

    Background:Diabetic nonhuman primates (NHPs) are considered as the good models for both diabetes mellitus research and islet transplantation research safely into clinical applications. However, there…
  • 2015 American Transplant Congress

    T-Cell Depletion Versus Interleukin-2 Antagonists in a Kidney Transplant Model of Sensitized Rhesus Macaques

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

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

    [Background] Sensitized patients comprise up to a third of the kidney waiting list. Preformed and newly formed alloantibodies post transplantation (TX) deteriorate graft survival, recall…
  • 2015 American Transplant Congress

    Eomesodermin Expression By Alloreactive Non-Human Primate CD8+ Memory T Cells: Influence of CTLA4Ig and Regulatory DC Infusion in Renal Allograft Recipients

    M. Ezzelarab,1 L. Lu,1 H. Guo,1 A. Zahorchak,1 W. Shufesky,1 D. Cooper,1 A. Morelli,1,2 A. Thomson.1,2

    1Surgery - Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA; 2Immunology, University of Pittsburgh, Pittsburgh, PA.

    Background:Memory T cells (Tmem), particularly those resistant to costimulation blockade (CoSB), are considered a major barrier to transplant tolerance. The T-box transcription factor Eomesodermin (Eomes)…
  • 2015 American Transplant Congress

    CMV prevalence in Mauritian and Indonesian Cynomolgus Macaques: Significance in Transplantation and CMV Disease Models

    K. Premanand,1 E. Szilagyi,1 J. Yu,1 R. Patel,1 A. Antony,1 M. Willman,2 D. Berman-Weinberg,2 D. Han,2 A. Vaidya,3 E. Silva,3 K. McHenry,3 D. Salomon,4 N. Kenyon,2 A. Bartholomew.1

    1University of Illinois, Chicago; 2Univerisity of Miami, Miami; 3University of Illinois, Urbana; 4Scripps, San Diego.

    Despite the finding that most macaques express high serologic titers of anti-CMV antibody, susceptibility to disease appears to be variable post-transplant. This observation led us…
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