Articles tagged "Sensitization"

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…
2021 American Transplant Congress
Prospective Intensive Monitoring for Anamnestic DSA Responses Allows Near Elimination of Early Clinical AMR
M. McGowan¹, A. Bickenbach¹, A. R. Shields², R. R. Alloway¹, P. Brailey¹, E. Portwood¹, C. Alquist¹, A. Christianson¹, B. Abu Jawdeh¹, M. Cuffy¹, J. Kremer², S. Bumb¹, A. Govil¹, M. Anand¹, T. Kaur¹, E. S. Woodle¹
¹U Cincinnati, Cincinnati, OH, ²Christ Hospital, Cincinnati, OH
*Purpose: Anamnestic donor specific antibody (aDSA) responses can result in severe, graft threatening antibody-mediated rejection (AMR). We hypothesized that intensive DSA monitoring (IDM) for aDSA…
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…
2021 American Transplant Congress
Impact of Allosensitization on Xenotransplantation
D. Olaso¹, M. Manook¹, J. Yoon¹, Y. Bae¹, A. Barbas¹, A. Adams², S. Knechtle¹, J. Kwun¹
¹Department of Surgery, Duke Transplantation Center, Durham, NC, ²Department of Surgery, University of Minnesota, Minneapolis, MN
*Purpose: Sensitization to human leukocyte antigens (HLA) due to prior exposure to foreign antigens through events such as blood transfusions, previous kidney transplant, or pregnancy…
2021 American Transplant Congress
Successful Prophylaxis of Antibody-Mediated Rejection by Downregulation of C5 Expression via RNA Interference in a Rat Kidney Transplant Model
H. Ishigooka¹, S. Motoi², T. Yamakawa¹, C. Matsui², Y. Suzuki³, R. Ishii¹, K. Saiga¹, D. Tokita¹, T. Imai², K. Tanabe¹
¹Urology, Tokyo Women's Medical University, Tokyo, Japan, ²KAN Research Institute, Inc., Kobe, Japan, ³Tsukuba Research Laboratories, Eisai, Co., Ltd., Ibaraki, Japan
*Purpose: Antibody-mediated rejection (AMR) is a major contributor towards poor prognosis in kidney transplantation. Circulating donor-specific antibodies (DSAs) cause AMR with complement activation. This study…
2021 American Transplant Congress
Quantifying Hidden Sensitization: HLA-reactive Memory B Cells in the Spleens of Sensitized Women
J. T. Killian¹, J. A. Houp¹, A. Nellore², R. G. King³, P. M. Porrett¹, F. E. Lund³
¹Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, ²Department of Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, AL, ³Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL
*Purpose: Measurement of circulating anti-HLA antibody (anti-HLA-Ab) in transplant candidates and recipients is required for successful organ transplantation. However, serum Ab measurement alone likely underestimates…
2021 American Transplant Congress
Anti-HLA-DP Antibodies Positive – A Retrospective Review of Outcomes in Renal Transplantation- Single Centre Experience
O. Piscoran¹, J. Worthington², R. Dhillon¹, T. Augustine¹, M. Picton¹, M. Morton¹, S. Bhutani¹
¹Urology, Renal and Transplantation, Manchester University NHS Foundation Trust, Manchester, United Kingdom, ²Transplantation Laboratory, Manchester University NHS Foundation Trust, Manchester, United Kingdom
*Purpose: Data on the role of HLA-DP antibodies on graft outcome is not precise. Studies suggested that the presence of donor-directed HLA-DP antibodies correlate with…
2021 American Transplant Congress
Anti-pig IgE and IgA Antibodies in Sera of (i) Naïve Primates and (ii) Non-human Primates Sensitized to Pig Xenografts
H. Hara, Q. Li, H. Iwase, T. Yamamoto, D. Ayares, D. K. Cooper
University of Alabama at Birmingham, Birmingham, AL
*Purpose: Anti-pig IgM and IgG antibodies in primates play an important role in xenograft rejection. The possible roles of anti-pig IgE and IgA have not…
2021 American Transplant Congress
The Incremental Cost of Transplanting Patients with 100% cPRA Under the Kidney Allocation System: A Single Center Analysis
R. Gumber, E. Kraus, K. Jackson, N. Alachkar
Nephrology, Johns Hopkins University School of Medicine, Baltimore, MD
*Purpose: Our group has described excellent three year patient and graft survival in patients with 100% cPRA undergoing kidney transplantation under the Kidney Allocation System…
2021 American Transplant Congress
Outcomes in Highly Sensitized Kidney Transplant Recipients Receiving DCD Organs
A. Diamond¹, L. Rodrigues², A. Di Carlo³, S. Karhadkar³
¹Pharmacy, Temple University Hospital, Philadelphia, PA, ²Temple University, Philadelphia, PA, ³Surgery, Temple University Hospital, Philadelphia, PA
*Purpose: Highly sensitized (HS) patients experience longer wait times for kidney transplantation despite prioritization by the Kidney Allocation System. Kidney transplants performed from donors defined…