Articles tagged "Primates"

2021 American Transplant Congress
Effects of IL-2 and/ or Anti-IL6R Therapy on Long-term Cardiac Allograft Survival in Non-Human Primates (NHPs)
C. L. Miller, K. J. Ahrens, J. M. O, P. M. Patel, J. A. Morrissette, D. Becerra, T. Costa, A. Dehnadi, I. M. Hanekamp, G. Benichou, J. C. Madsen
Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA
*Purpose: Cardiac allograft tolerance in NHPs has been achieved by our group using a mixed chimerism model with allogeneic bone marrow transplant after non-myeloablative conditioning…
2021 American Transplant Congress
Initial Experience with Growth Hormone Receptor Knockout in Pig-to-Baboon Kidney Transplantation: Effect on Ureteric Viability and Kidney Growth
C. Hansen-Estruch¹, H. Iwase¹, A. Jagdale¹, T. Yamamoto¹, M. H. Bikhet¹, J. Foote², H. Hara¹, D. Anderson¹, P. Porrett¹, D. Eckhoff¹, D. Ayares³, W. Eyestone³, J. Locke¹, D. K. Cooper¹
¹Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, ²Department of Microbiology and Animal Resources Program, University of Alabama at Birmingham, Birmingham, AL, ³Revivicor, Blacksburg, VA
*Purpose: The purpose of this study was to report outcomes of pig-to-baboon renal transplants using a novel growth hormone receptor knockout (GHRKO) organ-source pig created…
2021 American Transplant Congress
Anti-CD8 Immuno-PET for Non-invasive Tracking of Early Graft Rejection in a Non-human Primate Kidney Transplant Model
K. Bruestle¹, R. Tavare², F. Fredriksson¹, E. Duggan¹, F. Huang¹, B. Bhola¹, J. Giurleo², R. Foster², P. Krueger², M. Dobosz², D. Ekanayake-Alper¹, H. Sakai¹, B. Piegari¹, J. Castrillion¹, S. M. Coley¹, O. Harari², A. Mintz¹, D. Ma², A. Griesemer¹
¹Columbia University Medical Center, New York City, NY, ²Regeneron Pharmaceuticals, Inc, New York City, NY
*Purpose: Infiltration of CD8 T cells into solid organ grafts is an early sign of rejection. REGN5054 is a fully human monoclonal antibody that binds…
2021 American Transplant Congress
Short-term Therapy with Anti-icam-1 Monoclonal Antibody Induced Long-term Liver Allograft Survival in Non-human Primates
S. Hong¹, D. Han², S. Lee², J. Kim³, E. Hwang³, H. Kim⁴, J. Lee⁵, K. Hong¹, E. Han¹, J. Cho¹, J. Lee¹, Y. Choi¹, K. Lee¹, N. Yi¹, J. Yang¹, K. Suh¹
¹Surgery, Seoul National University College of Medicine, Seoul, Korea, Republic of, ²Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Korea, Republic of, ³Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea, Republic of, ⁴Pathology, Seoul National University College of Medicine, Seoul, Korea, Republic of, ⁵Medicine, Seoul National University College of Medicine, Seoul, Korea, Republic of
*Purpose: Tolerance induction remains challenging following liver transplantation and the long-term use of immunosuppressants, especially calcineurin inhibitors, leads to serious complications. We aimed to test…
2020 American Transplant Congress
Long-term Functional Survival of Human Stem Cell-Derived Islets Microencapsulated in Alginate with CXCL12 in Non-Human Primates without Immunosuppression
M. C. Poznansky¹, D. Alagpulinsa¹, J. Lei², R. Pop³, D. Sobell⁴, M. Chapin¹, S. Collins³, A. Veres³, H. Deng², D. Melton³, J. Markmann²
¹Vaccine and Immunotherapy Center, Massachusetts General Hospital, Charlestown Navy Yard, MA, ²Transplant Surgery, Massachusetts General Hospital, Boston, MA, ³Harvard Stem Cell Institute, Harvard University, Cambridge, MA, ⁴Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA
*Purpose: Human pluripotent stem cell-derived islet-like cells (SC-islets) represent a practical source for beta-cell replacement to achieve a functional cure for type 1 diabetes. Long-term…
2020 American Transplant Congress
Donor Mesenchymal Stem Cells in Combination with Co-Stimulation Blockade Prolong Allograft Survival
A. J. Matar, B. P. Lovasik, S. C. Kim, C. A. Breeden, D. A. Faber, D. V. Mathews, J. Regenold, A. Ghosh, A. Stephenson, W. H. Kitchens, A. B. Adams
Surgery and Transplantation, Emory University, Atlanta, GA
*Purpose: Co-stimulation blockade (CoB) has emerged as a promising immunosuppression strategy and potential alternative to calcineurin inhibitors in solid organ transplantation. Despite recent advancements, CoB…
2020 American Transplant Congress
Peak DSA Levels Pre-Transplant but Not at Transplant Predict Graft Survival
A. Y. Choi¹, D. Olaso¹, T. Risoli Jr², M. Kuchibhatla², Z. Fitch³, R. Schmitz³, P. M. Schroder³, A. Jackson³, M. Manook³, J. Yoon³, A. B. Farris⁴, J. Kwun³, S. J. Knechtle³
¹Duke University School of Medicine, Durham, NC, ²Duke Biostatistics, Epidemiology, and Research Design Core, Duke University, Durham, NC, ³Department of Surgery, Duke University Medical Center, Durham, NC, ⁴Department of Pathology, Emory University Hospital, Atlanta, GA
*Purpose: Immunization to major histocompatibility complex (MHC) antigens is a barrier in kidney transplantation (KTx) due to higher risk of antibody-mediated rejection (AMR) and graft…
2020 American Transplant Congress
IL-6 Receptor Blockade But Not IL-2 Treatment Contributes to Long-Term NHP Cardiac Allograft Survival in Transient Mixed Chimeras
K. Ahrens¹, J. M. O¹, W. Sommer², J. Morrissette¹, D. Becerra¹, P. M. Patel¹, T. Costa¹, A. Dehnadi¹, I. M. Hanekamp¹, J. S. Allan³, G. Benichou¹, J. C. Madsen⁴
¹Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, ²Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany, ³Center for Transplantation Sciences, Division of Thoracic Surgery, Massachusetts General Hospital, Boston, MA, ⁴Center for Transplantation Sciences, Division of Cardiac Surgery, Massachusetts General Hospital, Boston, MA
*Purpose: Long-term tolerance of cardiac allografts has been achieved in non-human primates (NHPs) using a mixed chimerism protocol and by co-transplanting a kidney from the…
2020 American Transplant Congress
Old World Monkeys Are Not Ideal Transplantation Models for Testing CMAHKO (TKO or GTKO/CMAHKO) Pig Kidneys
T. Yamamoto¹, H. Iwase¹, D. Patel¹, A. Jagdale¹, J. Foote¹, D. Ayares², D. Anderson¹, D. E. Eckhoff¹, D. K. Cooper¹, H. Hara¹
¹University of Alabama at Birmingham, Birmingham, AL, ²Revivicor, Blacksburg, VA
*Purpose: Triple-knockout (TKO) pigs are likely to be an optimal source of organs for transplantation into human recipients, many of whom do not have natural…
2020 American Transplant Congress
Splenectomy Impedes B Cell Infiltration Associated with Rejection of Neonatal Porcine Islet Xenografts
Z. W. Fitch, M. Song, R. Schmitz, F. Leopardi, M. Ribeiro, A. Miller, G. Devi, B. Collins, X. Luo, A. D. Kirk
Duke University, Durham, NC
*Purpose: Xenotransplantation has historically been frustrated by antibody-mediated rejection. Splenectomy has shown efficacy in mediating humoral immunity. We hypothesized that adding splenectomy to a clinically…