ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Immunogenicity"

  • 2019 American Transplant Congress

    Islet Stress Leads to Increased Release of Exosomes That Stimulate Immune Cell Response

    S. Vasu1, C. Darden2, K. Kumano1, B. Naziruddin3, M. Lawrence3

    1Baylor Scott and White Research Institute, Dallas, TX, 2Institute of Biomedical Studies, Baylor University, Waco, TX, 3Baylor University Medical Ctr, Dallas, TX

    *Purpose: Islet dysfunction and death caused by isolation procedures, immune attack and hypoxia significantly affect islet transplantation outcomes. Non-invasive monitoring of islet stress and damage…
  • 2019 American Transplant Congress

    Characterization of Intra-Exosomal Cargoes of Circulating Donor Heart Specific Exosomes in Murine Heart Transplantation Model

    J. Harmon, V. Korutla, L. Korutla, R. Hu, S. Rostami, A. Habertheuer, P. Zielinski, A. Freas, C. Ram, A. Naji, M. Davis, P. Vallabhajosyula

    Department of Surgery, University of Pennsylvania, Philadelphia, PA

    *Purpose: Exosomes are tissue specific, bilayered, membrane-bound nanoparticles released by many types of cells into bodily fluids including blood and urine. Exosomes carry protein and…
  • 2019 American Transplant Congress

    Impact Of Donor And Recipient Race On Kidney Transplant Survivals Evaluated By The Physiochemically-calculated Hla Immunogenicity

    S. Stepkowski, B. Mierzejewska, M. Rees

    University of Toledo, Toledo, OH

    *Purpose: Graft survivals are inferior for African American (AA) patients in comparison to Caucasian (CAU) patients in the United States. We examined how donor and…
  • 2019 American Transplant Congress

    Report of 20 HLAMatchmaker Eplets Present on Denatured Class I HLA Molecules

    R. de Marco1, A. C. Lima2, N. F. Pereira2, M. Gerbase-DeLima1

    1Immunogenetics Institute, AFIP, Sao Paulo, SP, Brazil, 2Immunogenetics Laboratory, Universidade Federal do Paraná, Curitiba, PR, Brazil

    *Purpose: The purpose of this report is to describe 20 class I HLA eplets, herein called FakEplets, present on denatured HLA molecules.*Methods: The study included…
  • 2018 American Transplant Congress

    Impact of Immunogenicity on Kidney Allograft Survival in Patients Treated with Induction Therapy

    D. Bekbolsynov, B. Mierzejewska, M. Rees, J. Ortiz, O. Ekwenna, S. Stepkowski.

    University of Toledo, Toledo.

    Background. The induction therapy is currently used in the majority of kidney transplant recipients, regardless of their level of donor/recipient compatibility. We examined whether lower…
  • 2018 American Transplant Congress

    Immunogenic HLA Mismatches and Evidence That Belatacept May Be the First Therapy Able to Prevent DQ De Novo DSA: An Analysis of the BENEFIT and BENEFIT-EXT Trial Cohorts

    M. Everly,1 V. Jucaud,1 M. Roberts,2 H. Gebel,3 R. Bray.3

    1Terasaki Research Institute, Los Angeles, CA; 2Immunology Biomarker Group, Bristol-Myers Squibb, Princeton, NJ; 3Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, GA.

    The use of belatacept over cyclosporine is associated with lower rates of DSA development in adult kidney transplantation. However, the effect of belatacept on the…
  • 2018 American Transplant Congress

    Simultaneous Persistence and Development of Donor and Recipient Tissue Resident Memory T Cells in Lung Transplantation

    M. Snyder,1 T. Connors,2 C. Marboe,3 L. Benvenuto,1 L. Shah,1 H. Robbins,1 J. Hook,1 F. D'Ovidio,4 M. Bacchetta,4 J. Sonnett,4 S. Arcasoy,1 D. Farber.4,5

    1Medicine, Columbia University Medical Center, New York, NY; 2Pediatrics, Columbia University Medical Center, New York, NY; 3Pathology, Columbia University Medical Center, New York, NY; 4Surgery, Columbia University Medical Center, New York, NY; 5Microbiology & Immunology, Columbia University Medical Center, New York, NY.

    Introduction: The predominant T cell population in the lung comprises non-circulating tissue-resident memory T cells (TRM); however, the fate of these cells in transplanted lung…
  • 2018 American Transplant Congress

    Graft Perfusion with Alvespimycin, an HSP90 Inhibitor, Suppresses Acute Allograft Rejection and Prolongs Graft Survival in Murine Heart Transplantation

    T. Tanaka, T. Maehana, N. Masumori.

    Department of Urology, Sapporo Medical University, Sapporo, Japan.

    Purpose: We have previously demonstrated that administration of a heat shock protein 90 (HSP90) inhibitor to recipients prolonged the allograft survival in murine skin and…
  • 2018 American Transplant Congress

    Determining the Relative Immunogenicity of HLA Mismatches with Calcineurin Inhibitor Immunosuppression: An Analysis of the BENEFIT and BENEFIT-EXT Renal Transplant Cohort

    V. Jucaud,1 M. Roberts,2 H. Gebel,3 R. Bray,3 M. Everly.1

    1Terasaki Research Institute, Los Angeles, CA; 2Immunology Biomarker Group, Bristol-Myers Squibb, Princeton, NJ; 3Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, GA.

    We studied the relative immunogenicity of HLA-A, -B, -C, -DR and -DQ MM (serological) in a cohort of 291 kidney transplant patients from the BENEFIT…
  • 2018 American Transplant Congress

    Circulating Exosomes with Lung Self-Antigens, Kα1Tubulin and Collagen V, and Immune Regulatory Proteins in Lung Transplant Recipient with Primary Graft Dysfunction

    M. Sharma, S. Biswas Roy, R. Walia, A. Omar, R. Bremner, M. Smith, T. Mohanakumar.

    Norton Thoracic Institute, St. Joseph's Hospital & Medical Center, Phoenix.

    Background: Circulating exosomes isolated from lung transplant recipients (LTxRs) with acute or chronic rejection contains lung self-antigens (SAgs), K alpha 1 tubulin (Kα1T) and collagen…
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