Articles tagged "HLA antibodies"

2020 American Transplant Congress
Next Generation Sequencing B Cell Receptor Reveals B Cell Clones Encoding HLA Antibody in Transplant Recipients
X. Zhang
HLA and Immunogenetcis Laboratory /CTC, Cedars Sinai Medical Center, Los Angeles, CA
*Purpose: The development of HLA donor specific antibodies (DSA) increases the risk of antibody mediated rejection and is an independent predictor of poor patient survival.…
2020 American Transplant Congress
Extended HLA Typing of Kidney Transplant Pairs is Necessary to Assign Presence of Donor-Specific Anti-HLA Antibodies
A. Senev¹, V. Van Sandt², M. Naesens¹, M. Emonds¹
¹Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium, ²HILA, Rode Kruis Vlaanderen, Leuven, Belgium
*Purpose: The need for extended high-resolution (HR) HLA genotyping in solid organ transplantation is currently widely debated due to higher costs and questioned clinical importance.…
2020 American Transplant Congress
Association between Homograft Tissue Exposure and Pre-Sensitization Prior to Heart Transplant in Patients with Congenital Heart Disease
D. J. Donovan¹, M. E. Richmond², E. A. Bacha³, L. J. Addonizio², W. A. Zuckerman²
¹Pediatrics, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY, ²Pediatric Cardiology, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY, ³Pediatric Cardiac Surgery, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY
*Purpose: Surgical repair for patients with congenital heart disease (CHD) often incorporates homograft tissue or other biologic material, which can lead to pre-sensitization. We sought…
2020 American Transplant Congress
Anti-HLA IgM Antibodies are Unaffected by Imlifidase (IdeS) Treatment
A. Runström¹, R. Bockermann¹, K. Sjöholm¹, K. M. Roupé¹, Å. Schiött¹, L. Winstedt¹, C. Kjellman¹, T. Lorant²
¹Hansa Biopharma AB, Lund, Sweden, ²Section of Transplantation Surgery, Department of Surgical Sciences, Uppsala, Sweden
*Purpose: The immunoglobulin G (IgG)-degrading cysteine protease, imlifidase (IdeS) is an IgG endopeptidase under development as a rapid desensitization treatment in kidney transplantation. Imlifidase is…
2020 American Transplant Congress
Donor-Specific B Cell Frequency Assessed by a Novel Multiplex Bead-Based Assay Predicts Graft Failure in Kidney Transplant Recipients
Z. Ilyas, A. Akl, D. Pinelli, L. Gallon, A. R. Tambur, M. Ansari
Northwestern University Feinberg School of Medicine, Chicago, IL
*Purpose: Kidney transplant recipients with sensitization to HLA defined by a high percentage of Panel Reactive Antibodies (PRA) or Donor-specific anti-HLA antibodies (DSA) are at…
2020 American Transplant Congress
Desensitization Combining Costimulation Blockade with Proteasome Inhibition in Highly Sensitized Transplant Candidates
S. Restaino¹, D. Jennings², G. Serban³, E. Vasilescu³, G. Sayer¹, N. Uriel¹, K. Takeda⁴, Y. Naka⁴, M. Farr¹, M. V. Habal¹
¹Cardiology, Columbia University Irving Medical Center, New York, NY, ²School of Nursing, Columbia University Irving Medical Center, New York, NY, ³Pathology&Cell Biology, Columbia University Irving Medical Center, New York, NY, ⁴Cardiothoracic Surgery, Columbia University Irving Medical Center, New York, NY
*Purpose: Antibodies to human leukocyte antigens (HLA) pose a significant barrier to transplantation. Strategies to reduce allosensitization have modest efficacy and may result in antibody…
2020 American Transplant Congress
A Single-Center Analysis of Using Allele-Level 11 HLA Loci Information on cPRA and Organ-Allocation Points in Kidney Transplant Candidates
C. Maguire¹, P. Muluhngwi¹, E. Kransdorf², L. Gragert³, A. R. Tambur¹
¹Northwestern University, Chicago, IL, ²Cedars-Sinai Heart Institute, Beverly Hills, CA, ³Tulane University, New Orleans, LA
*Purpose: Calculated panel reactive antibodies (cPRA) is used by the United Network for Organ Sharing (UNOS) to quantify degree of HLA sensitization and assign priority…
2020 American Transplant Congress
The Impact of DSA Screening in Stable Kidney Transplant Recipients in the 1st Year Post-Transplant
A. Sharma¹, D. Jorgensen², R. Mehta¹, P. Sood¹, C. Wu¹, C. M. Puttarajappa¹, A. Tevar¹, S. Hariharan¹
¹Thomas E. Starzl Transplant Institute, Renal Electrolyte Division, University of Pittsburgh Medical Center, Pittsburgh, PA, ²Thomas E. Starzl Transplant Institute, University of Pittsburgh Medical Center, Pittsburgh, PA
*Purpose: The importance of Donor Specific Antibody (DSA) as a screening tool within the 1st year post kidney transplant in stable patients remains unclear. We…
2020 American Transplant Congress
The Role of Galectin-1 and Basement Membrane Remodeling in Kidney Antibody-Mediated Rejection
S. Clotet-Freixas¹, C. McEvoy¹, I. Batruch², M. Kotlyar³, C. Pastrello³, J. Van¹, M. Arambewela¹, A. Boshart¹, S. Farkona¹, A. Bozovic⁴, V. Kulasingam⁴, P. Chen¹, I. Jurisica³, A. Chruscinski¹, R. John⁴, A. Konvalinka⁵
¹Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada, ²Department of Laboratory Medicine and Pathobiology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada, ³Krembil Research Institute, University Health Network, Toronto, ON, Canada, ⁴Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada, ⁵Department of Medicine, Division of Nephrology, University Health Network, Toronto, ON, Canada
*Purpose: Antibody-mediated rejection (AMR), the leading cause of kidney graft loss, is caused by anti-HLA and non-HLA antibodies against proteins in two main kidney compartments:…
2020 American Transplant Congress
The Ratio between Naïve and Memory B Cells is Associated with Development of Early Donor-Specific Antibodies within the First Month after Lung Transplantation
A. Hitz¹, R. Bellmàs Sanz¹, F. Ius², J. Kühne¹, B. Wiegmann², W. Sommer², J. Salman², T. Siemeni², C. Kühn², M. Avsar², A. Haverich², I. Tudorache², G. Warnecke², C. Falk¹
¹Institute of Transplant Immunology, Hannover Medical School MHH, Hannover, Germany, ²Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School MHH, Hannover, Germany
*Purpose: After lung transplantation (LuTx), the development of early donor HLA-specific antibodies (eDSA) has been shown to be associated with antibody-mediated rejection (AMR) and poor…

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