Articles tagged "Sensitization"

2021 American Transplant Congress
Natural Sensitization by Pregnancy, Testing Desensitization Strategies in Female NHPs Across Repeat Mismatches
M. Manook, J. Yoon, Z. Fitch, R. Schmitz, A. M. Jackson, J. Kwun, S. Knechtle
Duke Transplant Center, Duke University Medical Center, Durham, NC
*Purpose: Women are disproportionately represented in the highly sensitized patient cohort, and HLA-incompatible transplantation is undertaken predominantly in females. However, nonhuman primate (NHP) models to…
2020 American Transplant Congress
Virtual XM Adversely Affects Access for Highly Sensitized African Americans Awaiting Renal Transplantation
P. T. Jindra¹, B. V. Murthy¹, C. Van Buren²
¹Surgery, Baylor College of Medicine, Houston, TX, ²Surgery, UT Medical School, Houston, TX
*Purpose: Recent UNOS policy proposals have changed kidney allocation from local Designated Service Areas (DSA) to geographic distribution areas of varying widths. Since crossmatch of…
2020 American Transplant Congress
Synergistic Impact of Obesity and Pre-sensitization in Kidney Transplant Recipients on the Long Term Allograft Survival
Y. Park¹, S. Lee¹, E. Ko¹, T. Ban², J. Min³, H. Yoon⁴, C. Yang¹, B. Chung¹
¹Internal Medicine, Seoul St. Mary's Hospital, Seoul, Korea, Republic of, ²Internal Medicine, Eunpeyong St. Mary's Hospital, Seoul, Korea, Republic of, ³Internal Medicine, Bucheon St. Mary's Hospital, Seoul, Korea, Republic of, ⁴Internal Medicine, Incheon St. Mary's Hospital, Seoul, Korea, Republic of
*Purpose: Obesity is emerging as important health problems worldwide. In recent years, with the development of desensitization therapy, successful kidney transplantation has been performed even…
2020 American Transplant Congress
Selective Dual Co-Stimulatory Blockade of CD28/CD80-86 and PD1-PL2 with a Novel Recombinant Bi-Specific Fusion Protein (Hybri-2) Promotes Successful Humoral Desensitization in a Stringent Sensitized Rat Model
A. Torija, E. Crespo, M. Jarque, N. Bolaños, M. Meneghini, A. Favà, J. Torras, J. Grinyo, O. Bestard
Kidney Transplantation Unit, Bellvitge University Hospital- IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
*Purpose: Humoral Alloimmune memory is a main barrier for successful kidney transplantation and is orchestrated by a compartmentalized cellular immune response driven by bone-marrow LLPCs…
2020 American Transplant Congress
Clazakizumab (Anti-IL-6) Induces Foxp3+ Tregs in Highly HLA Sensitized Patients Desensitized for HLAi Transplantation (NCT03380962)
S. C. Jordan, S. Ge, N. Ammerman, M. Toyoda, E. Huang, A. Peng, R. Najjar, S. Sethi, S. Williamson, C. Myers, K. Lim, J. Choi, A. Vo
Cedars Sinai Medical Ctr, West Hollywood, CA
*Purpose: Interleukin-6 is an important inflammatory cytokine. In addition, it acts as a growth factor for B-cells, plasma cells and Th17 cells, inhibiting FoxP3+ Treg…
2020 American Transplant Congress
Costimulation Blockade-Based Maintenance Immunosuppression in a Sensitized Nonhuman Primate Kidney Allotransplantation Model
R. Schmitz, Z. W. Fitch, P. M. Schroder, A. Y. Choi, M. Manook, J. Yoon, J. Kwun, S. J. Knechtle
Department of Surgery, Duke University Medical Center, Durham, NC
*Purpose: Sensitized transplant recipients represent a challenging population in part due to the presence of donor-specific antibodies (DSA), which increase the risk of antibody-mediated rejection.…
2020 American Transplant Congress
Estimating Alloantibody Levels in Highly-Sensitized Renal Allograft Candidates Using Serial Dilutions
C. Maguire¹, A. R. Tambur¹, C. Schinstock², M. D. Stegall²
¹Northwestern University, Chicago, IL, ²Mayo Clinic, Rochester, MN
*Purpose: Despite the new Kidney Allocation System and Kidney Paired Donation, renal allograft candidates with a >99.9% cPRA still have extremely low rates of transplantation…
2020 American Transplant Congress
Effect of Maintaining Immunosuppression after Kidney Graft Failure on Mortality and Re-Transplantation
C. Schinstock, S. Balakrishnan, A. Bentall, M. Merzkani, M. Stegall
Mayo Clinic, Rochester, MN
*Purpose: Patients with a failed renal allograft are at high risk for mortality. The potential benefit of maintaining immunosuppression with the intent to minimize sensitization…
2020 American Transplant Congress
Bone Marrow Plasma Cell Heterogeneity Drives Resistance of Proteasome Inhibitor Therapy
C. M. Castro-Rojas¹, S. Tremblay², J. Driscoll³, K. Roskin⁴, R. R. Alloway³, E. Woodle², D. A. Hildeman¹
¹Immunobiology, Cincinnati Children's Hospital, Cincinnati, OH, ²Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, ³Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, ⁴Biomedical Informatics, Cincinnati Children's Hospital, Cincinnati, OH
*Purpose: Patients sensitized to HLA antigens by prior transplantation, pregnancy or blood transfusion may have markedly prolonged waiting times for transplant. Moreover, once transplanted, the…
2020 American Transplant Congress
Desensitization for Deceased Donor Transplantation: Testing a New Paradigm in the Nonhuman Primate
Z. W. Fitch, R. Schmitz, P. M. Schroder, M. Manook, A. Y. Choi, J. Yoon, J. Kwun, S. J. Knechtle
Duke University, Durham, NC
*Purpose: Desensitization regimens have rarely been applied to deceased donor allotransplantation. We hypothesized that belatacept monotherapy during a simulated deceased donor waiting list period would…