ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Tolerance"

  • 2019 American Transplant Congress

    Effects of Standard Drug Immunosuppression on Peripheral Transitional B Cells and Gene Expression in Non-Human Primates

    A. Bean1, J. Paster1, K. Pruner1, J. O1, W. Sommer2, K. Robinson3, I. Hanekamp1, G. Benichou1, J. Madsen1

    1Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, 2Klinik fur Herz Thorax Transplantation, Medizinische Hochschule Hannover, Hannover, Germany, 3Beth Israel Deaconess Medical Center, Boston, MA

    *Purpose: Operationally tolerant renal transplant recipients exhibit an increased number of transitional B cells and an upregulation of selected B-cell associated genes in the periphery…
  • 2019 American Transplant Congress

    Identification of Adult Liver Transplant Recipients Eligible to Participate in an Immunosuppression Withdrawal Trial Employing Non-Invasive Assessments of Allograft Status

    J. Vionnet1, R. Miquel1, A. Douiri1, M. Elstad1, E. Kodela1, A. Quaglia2, J. Wall1, P. Ruiz Martin1, E. B. Riani3, J. Leithead4, A. Marshall2, M. Navasa5, P. Ruiz5, J. Ferguson6, K. Simpson7, A. Pascher8, E. Jaeckel9, R. Bishop10, F. Nevens11, S. Masson12, A. Sanchez-Fueyo1

    1King's College London, London, United Kingdom, 2Royal Free, London, United Kingdom, 3St-Luc, Brussels, Belgium, 4Addenbrookes, Cambridge, United Kingdom, 5Hospital Clinic, Barcelona, Spain, 6Queen Elizabeth, Birmingham, United Kingdom, 7Royal Infirmary, Edinburgh, United Kingdom, 8Charité, Berlin, Germany, 9Hannover Medical School, Hannover, Germany, 10Leeds NHS Trust, Leeds, United Kingdom, 11UZ Leuven, Leuven, Belgium, 12Hepatology, Newcastle, United Kingdom

    *Purpose: Liver Immunosuppression Free Trial (LIFT) is a multicentre international prospective randomised controlled trial of biomarker-guided immunosuppression withdrawal in adult liver transplant recipients who meet…
  • 2019 American Transplant Congress

    Immunologically Tolerant Liver Transplant Recipients Are Characterized by Donor-Specific Hypo Responsiveness of Circulating T-cells

    A. A. Duizendstra1, R. J. Knegt de1, M. G. Betjes2, M. P. Peppelenbosch1, N. H. Litjens2, J. Kwekkeboom1

    1Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, Netherlands, 2Internal Medicine, Erasmus University Medical Center, Rotterdam, Netherlands

    *Purpose: Lifelong treatment with immunosuppressive drugs (IS) to prevent graft rejection in transplant recipients is accompanied by side effects. Some recipients are considered to be…
  • 2019 American Transplant Congress

    Persistent Mixed Chimerism, Immune Reconstitution, and Tolerance in Recipients of HLA Matched Kidney and Hematopoietic Cell Transplants

    S. Busque, J. Scandling, R. Lowsky, J. Shizuru, E. Meyer, K. Jensen, A. Shori, R. Hoppe, E. Engleman, T. Pham, S. Strober

    Stanford University School of Medicine, Stanford, CA

    *Purpose: We evaluated the immune reconstitution of recipients of HLA matched combined kidney and hematopoietic cell transplants after tolerance induction*Methods: Twenty nine recipients of living…
  • 2019 American Transplant Congress

    High Fibre Diet Prevents Transplant-Associated Dysbiosis and Prevents Kidney Allograft Rejection

    J. J. Singer1, H. Wu1, T. Kwan1, Y. Loh1, C. Wang1, J. Tan2, L. Macia2, S. Alexander3, S. Chadban1

    1Kidney Node Laboratory, Charles Perkins Centre, The University of Sydney, Sydney, Australia, 2Nutritional Immunometabolism Lab, Charles Perkins Centre, The University of Sydney, Sydney, Australia, 3The Children's Hospital Westmead, Sydney, Australia

    *Purpose: To investigate the impact of high fibre (HF) diet or dietary supplementation with the short chain fatty acid (SCFA) sodium acetate (SA) on kidney…
  • 2019 American Transplant Congress

    Efficacy of Photobiomodulatory Therapy Combined with Short-Term Immunosuppressants Prolonged Allograft Survival in a Rodent Hind-Limb Model

    Y. KUO1, Y. Li1, C. Chen1, R. Chen11, G. Brandacher2

    1Division of Plastic Surgery, Department of Surgery,, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, 2Department of Plastic Surgery, VCA center, Johns Hopkins University, Baltimore, MD

    *Purpose: Photobiomodulation has been applied for accelerating the skeletal muscle repair process. Our formal study demonstrated vitamin D could be involved in allograft survival and…
  • 2019 American Transplant Congress

    A Novel Protocol to Produce Massive Amounts of Autologous Thymus-Derived Treg Cells (ThyTreg) to Be Employed as Cellular Therapy in Heart Transplanted Children: A New Paradigm for the Prevention of Graft Rejection

    E. Bernaldo de Quirós1, R. López1, V. Pérez1, M. Clemente2, J. Gil-Jaurena3, M. Camino4, N. Gil4, E. Panadero4, C. Medrano4, M. Pion1, R. Correa-Rocha1

    1Laboratory of Immune-regulation, Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain, 2Cell Culture Unit, Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain, 3Pediatric Cardiac Surgery Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain, 4Pediatric Cardiology Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain

    *Purpose: Immune allograft rejection remains the main obstacle to successful transplants. Although transfer of regulatory T cells (Treg) has acquired growing interest in achieving indefinite…
  • 2019 American Transplant Congress

    Deficiency of the Transcription Factor Satb1 in T Cells Promotes Solid Organ Allograft Survival

    P. K. Gupta1, M. L. Miller2, L. Chen1, Y. Wang1, J. Conejo-Garcia3, A. Chong1, M. Alegre1

    1University of Chicago, Chicago, IL, 2University of Pittsburgh, Pittsburgh, PA, 3Moffitt Cancer Center & Research Institute, Tampa, FL

    *Purpose: Conventional CD4+ T cells are key effectors of allograft rejection and novel therapies limiting their response may hold promise in the context of organ…
  • 2019 American Transplant Congress

    Use of Low Dose Interleukin-2 to Expand Regulatory T-cells and Facilitate the Complete Discontinuation of Immunosuppression in Human Liver Transplantation

    T. Lim1, P. Ruiz2, A. Kurt2, E. Kodela2, M. Martinez-Llordella2, T. Tree3, A. Sanchez-Fueyo1

    1Institute of Liver Studies, King's College Hospital, London, United Kingdom, 2Department of Liver Sciences, King's College London, London, United Kingdom, 3Department of Immunobiology, King's College London, London, United Kingdom

    *Purpose: Low dose interleukin-2 (LDIL-2) is capable of expanding endogenous CD4+CD25+FoxP3+ regulatory T-cells (Tregs) in vivo but its role in human solid organ transplantation is…
  • 2019 American Transplant Congress

    Treg And Bone Marrow Infusion Promotes Survival Of Donor Kidney Grafted Months After Disappearance Of Mixed Chimerism

    K. Bruestle, P. Alonso-Guallart, E. Lopes, G. Pierre, N. Llore, H. Sakai, S. Kofman, D. Ekanayake-Alper, M. Sykes, A. Griesemer

    Columbia Center for Translational Immunology, Columbia University, New York City, NY

    *Purpose: Transient mixed chimerism induced with non-myeloablative conditioning in monkeys and humans induces tolerance to about 70% of donor kidney grafts transplanted at the time…
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