Articles tagged "Alloantibodies"

2019 American Transplant Congress
AMD3100 and Low-Dose FK506 Prevent De Novo Donor Specific Antibody Formation and Rejection in a Sensitized Kidney Transplantation Model
A. R. Ahmadi, L. Qi, R. N. Wesson, A. M. Cameron, Z. Sun
Johns Hopkins University School of Medicine, Baltimore, MD
*Purpose: De novo donor specific antibody (DSA) formation and antibody mediated rejection (AMR) are the main cause of allograft failure long-term. We have developed a…
2019 American Transplant Congress
Correlation of Crossmatch Predictions with Actual Results and Clinical Outcomes
R. Forbes¹, B. Concepcion¹, S. Fossey²
¹Vanderbilt University Medical Center, Nashville, TN, ²Dialysis Clinic, Inc, Nashville, TN
*Purpose: Flow cytometry crossmatching (FXM) is recognized as a valuable tool to assess immunological risk prior to renal transplantation. The increased resolution in HLA typing…
2019 American Transplant Congress
Antibody-Suppressor CD8⁺ T Cells Require CXCR5
J. Zimmerer¹, B. A. Ringwald¹, C. L. Avila¹, S. M. Elzein¹, R. T. Warren¹, M. Abdel-Rasoul², G. L. Bumgardner¹
¹Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, ²Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, OH
*Purpose: We previously reported the novel activity of alloprimed CD8+ T cells that suppress post-transplant alloantibody production. The purpose of the current study was to…
2019 American Transplant Congress
Differential Regulation of Phosphokinases by Anti-HLA Class I and 11 Antibodies
A. Babu¹, B. Tran², M. Hamdorf², V. Jucaud², S. Daga³, D. Mitchell⁴, M. Everly²
¹Henry Ford Hospitals, Detroit, MI, ²Terasaki Research Institute, Los Angeles, CA, ³University of Warwick, Coventry, United Kingdom, ⁴Medical Sciences, University of Warwick, Coventry, United Kingdom
*Purpose: Anti-HLA antibodies, both pre-formed and de novo are associated with worse graft survival. Glomerular endothelial cells are the targets for antibody mediated rejection. We…
2019 American Transplant Congress
Neutralization of Interlukin-6 by ALD518-P18 (Murine Clazakizumab) Attenuates Donor Specific Antibody Responses in a Mouse Model of Allogeneic Sensitization: A Report of Dosage Finding Study
I. Kim, G. Wu, N. Chai, T. Brennan, A. Klein, S. Jordan
Cedars-Sinai Med Ctr, Los Angeles, CA
*Purpose: Interleukin-6 (IL-6) is a proinflammatory cytokine involved in mediating both T-cell and B-cell responses in allograft rejection. In previous studies, we demonstrated that inhibition…
2019 American Transplant Congress
Circulating Donor Specific Antibody and Biopsy C4d Positivity in Pancreas Rejection Increase the Probability of Earlier Return to Insulin after Rejection
S. M. Riad¹, S. Jackson², E. B. Finger³, R. Kandaswamy³
¹Medicine, University of Minnesota, Minneapolis, MN, ²Complex Care Analytics, Fairview Health Services, Minneapolis, MN, ³Surgery, University of Minnesota, Minneapolis, MN
*Purpose: Outcome data following rejection in pancreas recipients are sparse. We sought to study the influence of C4d positivity and the presence of circulating DSA…
2019 American Transplant Congress
A Prognostic Biomarker to Estimate the Likelihood of Developing De Novo Donor Specific Antibody in Kidney Transplant Recipients
S. Kawakita¹, L. M. Rebellato², K. P. Briley², A. Q. Maldonado³, C. E. Haisch², P. Bolin², S. A. Kendrick⁴, H. Jones⁴, K. McLawhorn⁴, D. Leeser², V. Jucaud¹, V. Burnett¹, M. J. Everly¹
¹Terasaki Research Institute, Los Angeles, CA, ²East Carolina University, Greenville, NC, ³Vidant Medical Center, Greenville, NC, ⁴Eastern Nephrology Associates, Greenville, NC
*Purpose: Evaluation of human leukocyte antigen (HLA) mismatch at antibody epitope level rather than antigen level may explain better the impact of HLA mismatch on…
2019 American Transplant Congress
Development of De Novo Antibody in Renal Transplant Recipients with BK Viremia Managed with Immunosuppression Reduction
M. Raijmakers¹, A. Shetty², R. Hod Dvorai², A. Tambur², M. G. Ison²
¹University of Santiago, Santiago, Chile, ²Northwestern University Comprehensive Transplant Center, Chicago, IL
*Purpose: To determine the development of de novodonor specific antibodies (DSA) in renal transplant recipients with immunosuppression modulation and BK viremia and the associated risk…
2019 American Transplant Congress
Belatacept Monotherapy in Kidney Transplant Recipients with Failed Allografts Reduces Humoral Sensitization in a Single Center Randomized Controlled Trial
I. R. Badell, R. Elbein, R. A. Bray, H. M. Gebel, A. B. Adams, C. P. Larsen
Emory University School of Medicine, Atlanta, GA
*Purpose: Kidney transplant recipients with failed allografts suffer from high rates of humoral sensitization. Immunosuppression (IS) strategies are highly variable in these patients with many…
2019 American Transplant Congress
Next Gen ABO Antibody Assessment: Development of a Bead-Based ABO Antibody Detection Assay
A. Halpin¹, J. Pearcey², B. Motyka², S. Maier², J. Zhou³, T. L. Lowary⁴, C. W. Cairo⁴, L. J. West¹
¹Dept of Pediatrics, Dept of Laboratory Medicine, GlycoNet, ATI, CDTRP, University of Alberta, Edmonton, AB, Canada, ²Dept of Pediatrics, ATI, GlycoNet, CDTRP, University of Alberta, Edmonton, AB, Canada, ³Dept of Laboratory Medicine, University of Alberta, Edmonton, AB, Canada, ⁴Dept of Chemistry, GlycoNet, CDTRP, University of Alberta, Edmonton, AB, Canada
*Purpose: Accurate characterization of ABO antibodies (ABO-Ab) is critical to assess their impact in ABO incompatible (ABOi) transplantation. The current ABO-Ab detection method using erythrocyte…