Articles tagged "Tolerance"

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…
2019 American Transplant Congress
AMD3100 (Plerixafor) as a Single-Dose Stem Cell Mobilizing Agent in Vascularized Composite Tissue Allograft (VCA) Transplantation in a Canine DLA-Mismatch Model
B. Swearingen¹, S. Graves², R. Storb², D. W. Mathes¹
¹University of Colorado School of Medicine, Aurora, CO, ²Fred Hutchinson Cancer Research Center, Seattle, WA
*Purpose: Vascularized Composite Allograft (VCA) transplantation is a clinical reality but limited by toxicities of chronic immunosuppression and rejection. Current clinical tolerance protocols rely on…
2019 American Transplant Congress
Mismatched Antibody Epitopes and the Development of HLA-DQ De Novo DSA during Immunosuppression Withdrawal in Liver Transplant Recipients
V. Jucaud¹, A. Shaked², M. DesMarais³, P. Sayre⁴, S. Feng⁴, J. Levitsky⁵, M. Everly¹
¹Terasaki Research Institute, Los Angeles, CA, ²University of Pennsylvania, Philadelphia, PA, ³Immune Tolerance Network, San Francisco, CA, ⁴University of California San Francisco, San Francisco, CA, ⁵Northern Western University, Chicago, IL
*Purpose: We recently described, in liver transplant (LT) recipients from the ITN030ST study, the development of de novo donor-specific HLA antibodies (dnDSA) and their impact…
2019 American Transplant Congress
Superiority of Donor-Specifically vs. Polyclonally Expanded Regulatory T Cells in Controlling Graft Rejection in the NSG Mouse Human Skin Graft Model
J. H. Voss¹, F. Zheng¹, M. D. Jendrisak², J. R. Leventhal¹, Z. J. Zhang¹, J. M. Mathew¹
¹Surgery – Comprehensive Transplant Center, Northwestern University, Chicago, IL, ²Gift of Hope Organ & Tissue Donor Network, Itasca, IL
*Purpose: Naturally occurring CD4+CD25highFOXP3+ Regulatory T cells (Tregs) function as mediators of immune homeostasis. So, they are beginning to be utilized for controlling hyper-immunity and…