Articles tagged "Immunogenicity"

2020 American Transplant Congress
Impact of Catch-Up Vaccinations on Anti-HLA Antibody Responses in Pediatric Kidney Transplant Candidates
H. Sweiss¹, J. Lyons², R. Hall¹, K. Hitchman³, D. Ranch⁴, E. Kincaide¹, B. Crowther⁵
¹University Health System, San Antonio, The University of Texas Health Science Center at San Antonio, San Antonio, TX, ²Loyola University Medical Center, Chicago, IL, ³University Health System, San Antonio, TX, ⁴The University of Texas Health Science Center at San Antonio, San Antonio, TX, ⁵University of Colorado Health, Aurora, CO
*Purpose: Evaluate antibody (Ab) response after catch-up vaccinations in pediatric kidney transplant candidates (PKTC).*Methods: A single center retrospective review of PKTC less than or equal…
2020 American Transplant Congress
Donor Intervention and Recipient Treatment with Recombinant Human C1 Inhibitor Prevents Delayed Graft Function in a Non-Human Primate Model of Kidney Transplantation
J. A. Reyes¹, C. Blanton¹, M. Eerhart¹, P. Chlebeck¹, M. Springer¹, Y. Ponstein², E. van Amersfoort², J. Torrealba³, Y. Yankol¹, A. D'Allessandro¹, L. Fernandez¹
¹Surgery, University of Wisconsin, Madison, WI, ²Pharming Technologies BV, Leiden, Netherlands, ³Pathology, UT Soutwestern, Dallas, TX
*Purpose: There is currently no FDA-approved treatment to prevent delayed graft function (DGF) in kidney transplantation. We have shown that donor or recipient treatment with…
2020 American Transplant Congress
Sialoadhesin Mediates the Adhesion of Human RBC to Porcine Macrophages from Genetically Engineered Pigs
K. Petitpas¹, B. Cerel¹, Z. Abady¹, L. Burdorf¹, D. L. Ayares², D. M. Magnani³, R. N. Pierson III¹, A. M. Azimzadeh¹
¹Center for Transplantation Sciences, Massachusetts General Hospital/Harvard Medical School, Boston, MA, ²Revivicor, Blacksburg, VA, ³MassBiologics of UMMS, Boston, MA
*Purpose: The sequestration of human RBC is prominent after liver and lung xenotransplantation. Rees et al previously implicated porcine sialoadhesin in adhesion of human RBC…
2020 American Transplant Congress
Molecular Features of HLA Mismatches as Predictors of De Novo DSA Development: A Single Center Experience
V. Jucaud¹, L. Rebellato², K. Briley², C. Haisch², S. Kendrick³, H. Jones³, K. Mclawhorn³, D. Leeser², M. Everly¹
¹Terasaki Research Institute, Los Angeles, CA, ²East Carolina University, Greenville, NC, ³Eastern Nephrology Associates, Greenville, NC
*Purpose: Several molecular features (MoFs) of HLA mismatches (MMs) are currently used to predict the development of de novo donor-specific anti-HLA antibodies (dnDSA). The purpose…
2020 American Transplant Congress
HLA Mismatch Immunogenicity: Are We Predicating Mismatches That Induce De Novo DSA Development or That Do Not?
V. Jucaud¹, L. Rebellato², K. Briley², C. Haisch², S. Kendrick³, H. Jones³, K. Mclawhorn³, D. Leeser², M. Everly¹
¹Terasaki Research Institute, Los Angeles, CA, ²East Carolina University, Greenville, NC, ³Eastern Nephrology Associates, Greenville, NC
*Purpose: Although the development of de novo donor-specific anti-HLA antibodies (dnDSA) remains a major risk factor for poor long-term kidney allograft outcomes, the prediction of…
2020 American Transplant Congress
The Impact of HLA-DQ Molecular Mismatches on De Novo Occurrence of Donor-Specific Anti-HLA Antibodies after Kidney Transplantation: An Observational Cohort Study
A. Senev¹, M. Coemans¹, V. Van Sandt², E. Van Loon¹, J. Callemeyn¹, B. Sprangers¹, D. Kuypers¹, M. Emonds¹, M. Naesens¹
¹Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium, ²HILA, Red Cross-Flanders, Mechelen, Belgium
*Purpose: Evaluating HLA molecular mismatches (MM) instead of antigen mismatches might be a better tool to assess donor-recipient HLA incompatibility and provide a better risk…
2020 American Transplant Congress
Relapse-Prone Unresectable Hepatoblastoma (HB) Requiring Liver Transplantation (LT) Are Immunogenic and May Be Sensitive to Immune Checkpoint Inhibitors
M. Ningappa¹, C. Ashokkumar¹, J. Garifallou², M. Gonzalez², H. Hakonarson², S. Ranganathan¹, B. W. Higgs¹, R. Sindhi¹
¹Pediatric Transplant, Pittsburgh, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA
*Purpose: Unresectable HB accounts for 8% of all pediatric LT. Post-LT relapse rates approach 20% indicating a need for more effective neoadjuvant chemotherapy.*Methods: To discover…
2020 American Transplant Congress
A Simple HLA Class II Matching Strategy for the Prediction of De Novo Donor-Specific HLA Antibodies
L. G. Hidalgo¹, I. A. Martinez Juarez², L. Morales-Buenrostro³, S. Shojai⁴, P. Campbell⁴
¹Surgery, University of Wisconsin - Madison, Madison, WI, ²Nephrology, Hospital Angeles Pedregal, Mexico City, Mexico, ³Nephrology, Instituto Nacional de Ciencias Medicas y Nutricion, Mexico City, Mexico, ⁴Medicine, University of Alberta, Edmonton, AB, Canada
*Purpose: In kidney transplantation, degree of HLA Class II mismatch (MM) between donor and recipient drives the risk to develop de novo DSA (dnDSA). New…
2020 American Transplant Congress
Immunomodulation During Normothermic Ex Vivo Machine Perfusion of the Rat Liver
K. Carlson¹, F. Najmabadi¹, J. Pavan-Guimaraes¹, W. J. Burlingham¹, C. M. Capitini², D. P. Al-Adra¹
¹Surgery, University of Wisconsin, Madison, WI, ²Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
*Purpose: Transplantation is the best treatment option for end-stage liver failure. There remains a critical need to develop targeted therapeutic strategies to decrease graft rejection…
2020 American Transplant Congress
High Frequencies of Donor-Derived Memory T and NK Cells in the Blood of Lung Transplant Recipients May Contribute to Protection from Chronic Lung Allograft Dysfunction
R. Bellmàs Sanz¹, A. Hitz¹, B. Wiegmann², K. Bläsing¹, F. Ius², W. Sommer², J. Kühne¹, L. Horn¹, A. Knöfel², I. Tudorache², A. Haverich², D. Jonigk³, 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, ³Institute of Pathology, Hannover Medical School MHH, Hannover, Germany
*Purpose: After lung transplantation (LuTx), a transient chimerism of donor cells exists in the blood of recipients due to the migration of lymphocytes from the…

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