Articles tagged "HLA antibodies"

2020 American Transplant Congress
A Multicenter Analysis of the Proportion and Pattern of Unexplained HLA Antibodies in Kidney Recipients without a History of Sensitization
J. Lan¹, J. S. Gill¹, H. M. Gebel², R. A. Bray², R. Liwski³, A. Vinson⁴, A. Greenshields³, S. Dobrer⁵, O. Gunther⁵, K. Sherwood⁵, F. H. Claas⁶, S. Heidt⁶, G. Karahan⁶, J. Gill⁷, M. Gill¹, U. Varyani¹, P. Jindal¹, P. Keown⁵
¹Medicine, Division of Nephrology, University of British Columbia, Vancouver, BC, Canada, ²Pathology, Emory University, Atlanta, GA, ³Pathology, Dalhousie University, Halifax, NS, Canada, ⁴Nephrology, Dalhousie University, Halifax, NS, Canada, ⁵Pathology, University of British Columbia, Vancouver, BC, Canada, ⁶Immunohaematology and Blood Transfusion, Leiden University Medical Center, Leiden, Netherlands, ⁷Nephrology, Emory University, Atlanta, GA
*Purpose: Previous studies report a high prevalence of unexplained antibody reactivities on the single antigen bead (SAB) test. In a contemporary multicenter cohort of non-sensitized…
2020 American Transplant Congress
Donor-Specific Antibody Test as a Screening Tool for Stable Long-Term Kidney Transplant Recipients
M. Mohamed¹, L. Hidalgo², S. Parajuli¹, N. Garg¹, F. Aziz¹, K. Swanson¹, E. Jochaim¹, D. Mandelbrot¹, A. Djamali¹, B. Astor¹
¹Department of Nephrology, Madison, WI, ²Department of Surgery, Madison, WI
*Purpose: Donor-specific antibody (DSA) is an established biomarker predicting antibody mediated rejection (AMR), but at substantial cost. The utility of DSA test as a screening…
2020 American Transplant Congress
Crosstalk between TLR4 and HLA Class I Mediates P-Selectin Expression and Monocyte Capture to Endothelial Cells
Y. Jin, N. M. Valenzuela, R. A. Sosa, E. F. Reed
Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA
*Purpose: Transplant recipients developing donor specific HLA antibodies (DSA) are at risk for acute and chronic antibody-mediated rejection (AMR). DSA contribute to the process of…
2020 American Transplant Congress
Effects of Donor Specific Antibodies in Intestinal/Multivisceral Transplant Recipients
K. Klein¹, M. Keck², E. Langewisch², S. Merani², M. Leick²
¹University Health System, San Antonio, TX, ²Nebraska Medicine, Omaha, NE
*Purpose: Evaluate the effects of donor specific antibodies (DSAs) on outcomes in post-intestinal/multivisceral (MV) transplant patients and describe the presentation of DSAs post-transplant.*Methods: This single-center…
2020 American Transplant Congress
Is the Epitope Mismatch Load Enough to Identify HLA-DQ Mismatches with a Low Risk for De Novo DSA Development?
V. Jucaud¹, M. Stegall², C. Schinstock², R. Heilman³, L. Rebellato⁴, M. Samaniego-Picota⁵, D. Leeser⁴, M. Gandhi², J. Beaumont¹, M. Everly¹
¹Terasaki Research Institute, Los Angeles, CA, ²Mayo Clinic, Rochester, MN, ³Mayo Clinic, Phoenix, AZ, ⁴East Carolina University, Greenville, NC, ⁵Henry Ford Transplant Institute, Detroit, MI
*Purpose: The development of de novo donor-specific anti-HLA antibodies (dnDSA) remains a major risk factor for poor long-term kidney allograft outcomes. In particular, anti-HLA-DQ dnDSAs,…
2020 American Transplant Congress
Association between Longer Hospitalization and Development of De Novo Donor Specific Antibody in Simultaneous Liver-Kidney Transplant Recipients
M. Yazawa¹, O. Cseprekal², R. A. Helmick¹, M. Talwar¹, V. Balaraman¹, P. S. Podila³, S. Fossey⁴, S. K. Satapathy⁵, J. D. Eason¹, M. Z. Molnar¹
¹James D. Eason Transplant Institute, Methodist University Hospital, Memphis, TN, ²Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary, ³Faith & Health Division, Methodist Le Bonheur Healthcare, Memphis, TN, ⁴Transplant Immunology Laboratory, DCI Inc., Nashville, TN, ⁵Sandra Atlas Bass Center for Liver Diseases & Transplantation, Northshore University Hospital/Northwell Health, Manhasset, NY
*Purpose: De novo Donor Specific Antibodies (DSA) are considered a risk factor for worsening kidney allograft outcomes in recipients after simultaneous liver-kidney transplantation (SLK). No…
2020 American Transplant Congress
Analysis of 1000 Protocol Kidney Biopsies: Complications, Benefits, and Predictive Potential of Prior Sensitization
M. Eslami¹, J. Patel², S. Karzai¹, D. T. Collins¹, C. Liu¹, J. Jonsson¹, R. Wali¹, J. B. Piper¹
¹Surgery, Inova Fairfax Hospital, Falls Church, VA, ²General Surgery, Pennsylvania State University, State College, PA
*Purpose: Protocol biopsy of kidney transplants can allow for early recognition of treatable findings, both immunologic and non-immunologic. This comes with the risk of biopsy…
2020 American Transplant Congress
HLA Specific Antibody Levels after EDTA Treatment in CDC Crossmatch Positive and Negative Sera with Known Donor-Specific Antibodies
J. Lauronen¹, T. Jaatinen¹, J. Holgersson², C. Naper³, J. Peräsaari¹
¹Histocompatibility Laboratory, Finnish Red Cross Blood Service, Helsinki, Finland, ²Department of Laboratory Medicine, Sahlgrenska Academy at University of Gothenburg and Sahlgrenska University Hospital, Gothenburg, Sweden, ³Histocompatibility Laboratory, Oslo University Hospital, Oslo, Norway
*Purpose: Ethylenediaminetetraacetic acid (EDTA) treatment of serum samples overcomes the prozone effect that may interfere with solid phase HLA specific antibody analyses. In patients with…
2020 American Transplant Congress
Simultaneous Liver and Kidney Transplantation—The Lack of Influence of Pre-Formed DSA
A. Bhansali, F. Mahir, M. Facciuto, R. Shapiro, J. Crismale, T. Schiano, G. De Boccardo
Recanati-Miller Transplantation Institute, Mount Sinai Hospital, New York, New York, NY
*Purpose: It is known that renal transplant recipients with preformed donor specific antibodies (DSA) have poorer outcomes associated with episodes of acute rejection (AR) and…
2020 American Transplant Congress
Belatacept Provides Superior Inhibition of Donor Specific Antibody Formation in Kidney Transplant Recipients with Acute Rejection
O. Cristea, C. Larsen, I. Badell
Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
*Purpose: The factors responsible for chronic renal allograft dysfunction and premature graft loss are incompletely understood and likely multifactorial. Immunologic injury partially attributable to the…