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American Transplant Congress abstracts

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  • 2022 American Transplant Congress

    Tacrolimus After Rabbit Antithymocyte Globulin And Infliximab Induction Immunosuppression In Kidney Transplantation

    O. Viklicky1, G. Bold2, O. Bestard3, P. Hruba1, I. Zahradka1, N. M. Otto2, M. Stein2, A. Sefrin2, S. Christakoudi4, P. M. Reinke2

    1Institute for Clinical and Experimental Medicine, Prague, Czech Republic, 2Charité, Berlin, Germany, 3Vall d'Hebron, Barcelona, Spain, 4King's College, London, United Kingdom

    *Purpose: Selective targeting of effector/memory T cells as induction immunosuppression has been discussed in kidney transplantation. Confidence-interval-estimation study may help to estimate range of the…
  • 2022 American Transplant Congress

    Pegylated Lacritin N-104 Promotes Mouse Islet Stabilization and Prevents Diabetes Progression in the Non-Obese Diabetic (NOD) Mouse Model

    M. Ma1, P. Chhabra1, G. Laurie2, K. L. Brayman1

    1Department of Surgery, University of Virginia Health System, Charlottesville, VA, 2Department of Cell Biology, University of Virginia Health System, Charlottesville, VA

    *Purpose: To investigate if PEGylated Lacritin N-104 (PEG N-104) prevents the progression of type 1 diabetes (T1D) in the NOD mouse.*Background: Lacritin is a multifunctional…
  • 2022 American Transplant Congress

    Single Blind Randomized Controlled Trial Comparing BNT162b2 Vs JNJ-78436735 Vaccine As An Additional Dose After Two Doses Of BNT162b2 Vaccine In Solid Organ Transplant (SOT) Recipients

    Y. Natori1, E. Martin2, A. Mattiazzi3, J. Bini Viotti1, K. S. Ortecho4, S. Pallikkuth5, S. Anjan1, J. Simkins1, G. Guerra3

    1Department of Medicine, Division of Infectious Diseases, University of Miami, Miami, FL, 2Department of Medicine, Division of Hepatology, University of Miami, Miami, FL, 3Department of Medicine, Division of Nephrology, University of Miami, Miami, FL, 4Miami Transplant Institute, Jackson Health System, Miami, FL, 5University of Miami, Miami, FL

    *Purpose: Even though a high efficacy and immunogenicity of COVID-19 vaccines have been reported in the general population, vaccine immunogenicity is suboptimal in SOT recipients…
  • 2022 American Transplant Congress

    Results Of The Ctot19 Trial: Infliximab (IFX) Induction Does Not Impact 2-year Outcomes In Deceased Donor Kidney Transplant Recipients

    P. Heeger1, B. Armstrong2, T. Alhamad3, D. Brennan4, J. Bromberg5, S. Bunnapradist6, S. Chandran7, R. Fairchild8, D. Foley9, R. Formica10, I. W. Gibson11, D. Hricik12, K. Kesler2, R. B. Mannon13, M. Menon10, K. Newell14, P. Nickerson11, J. Odim15, E. Poggio8, R. Sung16, R. Shapiro1, K. Tinckam17, F. Vincenti7

    1Mount Sinai, New York, NY, 2Rho, Durham, NC, 3Washington U, Saint Louis, MO, 4Johns Hopkins, Baltimore, MD, 5U Maryland, Baltimore, MD, 6UCLA, Los Angeles, CA, 7UCSF, San Francisco, CA, 8Cleveland Clinic, Cleveland, OH, 9U Wisconsin, Madison, WI, 10Yale, New Haven, CT, 11U Manitoba, Winnipeg, MB, Canada, 12U Hosp Case, Cleveland, OH, 13U Nebraska, Omaha, NE, 14Emory, Atlanta, GA, 15NIAID NIH, Rockville, MD, 16U Michigan, Ann Arbor, MI, 17U Hlth Network, Toronto, ON, Canada

    *Purpose: Ischemia-reperfusion (IR) of a kidney transplant (KTx) up-regulates tumor necrosis factor alpha (TNF) production within the allograft. IR-induced TNF amplifies post-KTx allograft inflammation and…
  • 2022 American Transplant Congress

    Long-Term Kidney Allotransplant Acceptance is Defined by a Shift from a T Cell to a B Cell Rich Immune Microenvironment Within the Graft

    E. S. Szuter1, T. Yokose1, M. T. Guinn1, J. Ge2, I. Rosales3, B. Kwon4, P. S. Russell1, A. Cuenca2, D. Kreisel5, P. Sage6, J. C. Madsen1, R. B. Colvin3, A. Alessandrini1

    1Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, 2Department of Surgery, Boston Children's Hospital, Boston, MA, 3Department of Pathology, Massachusetts General Hospital, Boston, MA, 4Harvard College, Cambridge, MA, 5Department of Surgery, Washington University, St. Louis, MO, 6Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Boston, MA

    *Purpose: Mouse kidney allografts are spontaneously accepted in select, fully-mismatched donor-recipient strain combinations, such as DBA/2J to C57BL/6 (B6). Tolerant renal grafts develop aggregates of…
  • 2022 American Transplant Congress

    COVID-19 Vaccination Induces a Poor Interleukin-21 Memory T-cell Response in Kidney Transplant Recipients

    S. R. Malahe1, Y. den Hartog1, R. de Kuiper1, D. Reijerkerk1, D. Geers2, C. H. GeurtsvanKessel2, M. M. Kho1, R. D. de Vries2, M. E. Reinders1, C. C. Baan1

    1Internal Medicine, Nephrology and Transplantation, Erasmus MC, Rotterdam, Netherlands, 2Viroscience, Erasmus MC, Rotterdam, Netherlands

    *Purpose: COVID-19-related morbidity and mortality is high among kidney patients. Several studies recently suggested low humoral and cellular immune responses after two doses of mRNA-1273…
  • 2022 American Transplant Congress

    HLA-II Subclasses Behave Differently Between Themselves and Between Humans: Cues to Understand Alloreactivity

    S. Beland, O. Desy, M. Marcoux, M. Thivierge, J. Desgagnes, S. A. De Serres

    Transplantation Unit, Renal Division, University Health Center of Quebec, Faculty of Medicine, Universite Laval, Quebec, QC, Canada

    *Purpose: De novo anti-HLA-II DSAs (dnDSA) are associated with antibody-mediated rejection. However, some patients with anti-HLA-II DSAs will not develop rejection, suggesting that the development…
  • 2022 American Transplant Congress

    A Randomized Phase 2 Study Of Mau868 Vs Placebo To Treat Bk Viremia In Kidney Transplant Recipients

    S. Jordan1, A. P. Limaye2, B. Fischbach3, P. Sood4, S. Collette5, L. Gasink6, M. W. Fordyce7, C. J. Lin7, M. Hodges6, D. C. Brennan8

    1Cedars-Sinai Medical Center, Los Angeles, CA, 2University of Washington, Seattle, WA, 3Dallas Nephrology Associates, Inc, Dallas, TX, 4University of Pittsburgh Medical Center, Pittsburgh, PA, 5Hôpital Maisonneuve-Rosemont, Montréal, QC, Canada, 6previous employee/consultant for Amplyx Pharmaceuticals, San Diego, CA, 7Vera Therapeutics, Inc, Brisbane, CA, 8Johns Hopkins School of Medicine, Baltimore, MD

    *Purpose: To assess the safety and efficacy of MAU868, a BK virus-specific monoclonal antibody, in adult kidney transplant recipients with BK viremia.*Methods: This is a…
  • 2022 American Transplant Congress

    Ex Vivo End Ischemic Hypothermic Oxygenated Perfusion (hope) Versus Static Cold Storage Prior To Liver Transplantation – Preliminary Results Of The Bridge To Hope Pivotal Multicenter Randomized Controlled Clinical Trial On The Safety And Effectiveness Of The Vitasmart Liver Machine Perfusion System (clinicaltrials.gov: Nct05045794)

    D. J. Reich1, A. Schlegel2, M. Rizzari3, D. Foley4, M. DeVera5, W. Chapman6, G. Roll7, A. Saharia8, C. Quintini9, S. Florman10, S. Merani11, S. Mao12, A. Pinna13, M. Akoad14, C. Kubal15, S. Alexopoulos16, H. Bohorquez17

    1Drexel University, Philadelphia, PA, 2Careggi U, Florence, Italy, 3Henry Ford, Detroit, MI, 4U Wisconsin, Madison, WI, 5Loma Linda, Loma Linda, CA, 6Washington U, Saint Louis, MO, 7UCSF, SF, CA, 8Methodist, Houston, TX, 9Cleveland Clinic, Cleveland, OH, 10Mount Sinai, NY, NY, 11U Nebraska, Omaha, NE, 12Mayo, Jacksonville, FL, 13Cleveland Clinic, Weston, FL, 14Lahey, Burlington, MA, 15Indiana U, Indianapolis, IN, 16Vanderbilt, Nashville, TN, 17Ochsner, New Orleans, LA

    *Purpose: Ex vivo end ischemic hypothermic oxygenated machine perfusion (HOPE) is a simple technique to improve liver transplant (LT) results and the donor shortage. HOPE…
  • 2022 American Transplant Congress

    A Randomised Trial Of Normothermic Machine Perfusion Versus Static Cold Storage In Donation After Circulatory Death Renal Transplantation

    S. Hosgood1, C. Callaghan2, C. Wilson3, G. Oniscu4, B. Phillips5, L. Bates3, L. Smith6, M. L. Nicholson7

    1Surgery, University of Cambridge, Cambridge, United Kingdom, 2Transplant, Guys & St Thomas's, London, United Kingdom, 3Transplant, Freeman Hospital, Newcastle, United Kingdom, 4Edinburgh Royal Infirmary, Edinburgh, United Kingdom, 5Transplant, Guy's & St Thomas's, London, United Kingdom, 6NHSBT, NHSBT, Bristol, United Kingdom, 7University of Cambridge, Cambridge, United Kingdom

    *Purpose: Kidneys from donation after circulatory death (DCD) donors are more susceptible to cold storage injury and have a high risk of delayed graft function…
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