Articles tagged "Sensitization"

2022 American Transplant Congress
The Impact of Early Graft Infiltrating TCF-1^LowPD-1^HighCD8⁺ T Cells in Delayed Fc Nonbinding Anti-CD3 Antibody Protocol in the Sensitized Mouse Model
T. Ota¹, R. Goto¹, T. Harada¹, Y. Ganchiku¹, M. Zaitsu¹, A. Forgioni¹, N. Kawamura², M. Watanabe², M. Fukai¹, T. Shimamura³, A. Taketomi¹
¹Dept. of Gastroenterological Surgery I, Hokkaido University, Sapporo, Japan, ²Dept. of Transplant Surgery, Hokkaido University, Sapporo, Japan, ³Division of Organ Transplantation, Hokkaido University Hospital, Sapporo, Japan
*Purpose: Fc nonbinding anti(a)-CD3 antibody has a unique effect that delayed treatment protocol induces a transplant tolerance. Delayed protocol allows early graft infiltrating cells which…
2022 American Transplant Congress
Post Heart Transplant Outcomes of Desensitized Durable Mechanical Circulatory Support Patients
J. Youn¹, D. Kim², J. Choi², K. Kim¹, I. Kim³, E. Kransdorf⁴, D. Chang⁴, M. Kittleson⁴, J. Patel⁴, R. Cole⁴, J. Moriguchi⁴, D. Ramzy⁵, F. Esmailian⁵, J. A. Kobashigawa⁴
¹Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea, Republic of, ²Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Republic of, ³Keimyung University Dongsan Hospital, Daegu, Korea, Republic of, ⁴Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, ⁵Department of Cardiothoracic Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: Desensitization therapy (DST) is considered to increase the chances of a negative crossmatch, to expand the number of suitable donors, and to improve post-transplant…
2022 American Transplant Congress
Belatacept-Based Maintenance Immunosuppression Promoted Long-Term Antibody-Mediated Rejection Free Graft Survival After Desensitization in Sensitized Multiparous Female Recipients
M. Manook, I. Anwar, R. Schmitz, Z. Fitch, J. Yoon, A. Jackson, J. Kwun, S. Knechtle
Duke Transplant Center, Durham, NC
*Purpose: Amongst sensitized patients awaiting a transplant, females are disproportionately represented. To date, nonhuman primate (NHP) models of transplantation have relied on male animals, sensitized…
2022 American Transplant Congress
A2/A2B to B Kidney Transplantation Outcomes: A Single-Center 5 Year Experience
A. El Chediak, S. Shawar, M. Fallahzadeh, I. Feurer, S. Rega, J. L. Triozzi, D. Shaffer
Vanderbilt University Medical Center, Nashville, TN
*Purpose: The new kidney allocation system (KAS) instituted in 2014 allowed organ procurement organizations to allocate A2/A2B to B candidates preferentially was meant to improve…
2022 American Transplant Congress
Validation of Donor Specific Antibody Characteristics Associated with Deleterious Outcomes: A Single Center Study of 940 Kidney Allograft Recipients
P. Lamba¹, I. Lamba¹, R. Friedlander², V. Sharma³, J. Lee², J. B. Lee⁴, C. Hartono⁵, M. Thangamani⁶, D. Sawinski², T. Salinas⁷, M. Suthanthiran⁸, D. Dadhania⁹
¹Nephrology, Hypertension and Transplantation, New York Presbyterian/Weill Cornell Medicine, New York, NY, ²New York Presbyterian/Weill Cornell Medicine, New York, NY, ³The Rogosin Inst Cornell UMC, New York, NY, ⁴Rogosin Institute, New York, NY, ⁵New York Presbyterian Hospital-Weill Cornell, New York, NY, ⁶Cornell, New York, NY, ⁷Nephrology, NY Presbyterian- Weill Cornell, New York, NY, ⁸Weill Cornell Med Ctr., New York, NY, ⁹Weill Cornell Medicine - NYPH, New York, NY
*Purpose: A reproducibility crisis is pervasive in scientific literature. We aimed to investigate whether the DSA characteristics we previously associated with antibody mediated rejection (AMR)…
2022 American Transplant Congress
Outcomes of Sensitized Simultaneous Liver-Kidney Transplant
E. R. Kitchel, T. Tan, A. Wadhwa, D. G. Farmer, S. Bunnapradist
David Geffen School of Medicine, Los Angeles, CA
*Purpose: Pre-formed donor-specific HLA antibodies (DSAs) in simultaneous liver-kidney transplants (SLKTs) have been associated with increased risk of antibody mediated rejection (AMR) and negative transplant…
2022 American Transplant Congress
Beyond CPRA: Identifying Sensitized Kidney Candidates with Markedly Low Access to Transplant
K. Bradbrook¹, A. Maldonado², K. Sjöholm², C. Kjellman², J. Lee³, D. Stewart¹
¹UNOS, Richmond, VA, ²Hansa Biopharma AB, Lund, Sweden, ³Immucor, Norcross, GA
*Purpose: The Kidney Allocation System (KAS) improved the rates of transplantation in highly sensitized (HS) patients. However, a subset of HS patients remain at a…
2022 American Transplant Congress
Fcγ Receptor-Positive Cells Play a Critical Role in Rejection of Allogeneic Bone Marrow Cells Mediated by Anti-Donor Antibodies
H. Xu¹, Y. Huang¹, H. Xu²
¹Talaris, Louisville, KY, ²Talaris Therapeutics, Louisville, KY
*Purpose: Sensitization through prior exposure to MHC antigens results in an increased rate of graft rejection. We previously reported that humoral immunity is the primary…
2022 American Transplant Congress
Marginal Zone Phenotype B Cells Are Required for Formation of Donor-Specific IgG After Allogeneic Sensitization
M. A. Kallarakal, G. Cohen, S. M. Krummey
Department of Pathology, Johns Hopkins University, Baltimore, MD
*Purpose: The formation of allogeneic antibody directed against non-self MHC, termed donor-specific antibody (DSA), is a significant barrier to successful transplant outcomes. Pre-formed DSA limits…
2022 American Transplant Congress
Outcomes of Highly-Sensitized, Virtual and Flow Cross-Match Negative Renal Transplant Recipients: A Retrospective Observational Study
A. Agrawal¹, B. Smith¹, M. Gandhi², C. Schinstock¹
¹Transplant Nephrology, Mayo Clinic, Rochester, MN, ²Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
*Purpose: Many highly-sensitized kidney transplant recipients are sensitized from prior transplants, which have been shown to limit graft survival more than pregnancy or blood transfusions.…

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