ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Leukocytes"

  • 2022 American Transplant Congress

    Utility of Cytomegalovirus T-Cell Immunity Panel to Predict CMV Infections in Lung Transplant Recipients

    R. W. Lincoln1, B. J. Pierce1, C. Pham1, S. W. Yau2, A. Goodarzi2, J. G. Youssef2, H. J. Huang2

    1Pharmacy, Houston Methodist Hospital, Houston, TX, 2Pulmonology, Houston Methodist Hospital, Houston, TX

    *Purpose: Given the limited data of cytomegalovirus T-cell immunity panels (CMV TCIP) in lung transplant recipients (LTR), we sought to describe our center’s experience with…
  • 2022 American Transplant Congress

    P2X7R Inhibition Impairs In Vitro Training of Macrophages

    H. H. Lancia1, R. Sanchez2, A. G. Lellouch1, C. L. Cetrulo1, J. Ochando3, G. Benichou4

    1Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 2Icahn School of Medicine at Mount Sinai, New York, NY, 3Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 4Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA

    *Purpose: Macrophage training and ATP-mediated P2X7R signaling are unrelated key elements of the innate immune response associated with allotransplant rejection. In the present study, we…
  • 2022 American Transplant Congress

    Single Cell RNAseq Analysis of Human Renal Allograft Rejection Demonstrates Distinct Transcriptomic Profiles That Vary Based on the Type of Maintenance Immunosuppression

    T. Shi1, A. Burg1, K. Roskin2, J. Rush3, B. Haraldsson3, A. Shields4, R. Alloway4, E. Woodle5, D. Hildeman1

    1Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 2Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 3Novartis Pharmaceuticals AG, Basel, Switzerland, 4Internal Medicine, University of Cincinnati, Cincinnati, OH, 5Surgery, University of Cincinnati, Cincinnati, OH

    *Purpose: Rejection therapy has remained unchanged for 60 years and is associated with significant failure and infection rates. Development of new anti-rejection therapies requires mechanistic…
  • 2022 American Transplant Congress

    Apheresis of Deceased Donors: A New Source of Mobilized Peripheral Blood Hematopoietic Stem Cells for Transplant Tolerance

    R. A. Sosa1, T. Mone2, B. V. Naini1, D. B. Kohn3, E. F. Reed1, K. Wheeler2, B. Campo-Fernandez3, A. Davila3, D. J. Chaffin4, J. DiNorcia5, F. M. Kaldas5, A. Cohen2, E. Lum6, J. L. Veale7, N. M. Kogut7

    1Pathology and Lab Medicine, UCLA, Los Angeles, CA, 2One Legacy, Los Angeles, CA, 3Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, 4LifeStream Blood Bank, San Bernadino, CA, 5Surgery, UCLA, Los Angeles, CA, 6Medicine, UCLA, Los Angeles, CA, 7Urology, UCLA, Los Angeles, CA

    *Purpose: Solid organ transplantation is the therapy of choice for many patients with end-stage organ failure, but recipients must remain on lifelong immune suppression, leaving…
  • 2022 American Transplant Congress

    P2X7R Signaling Controls Exosome Release by Macrophages and Donor MHC Cross-Dressing After Skin Transplantation

    H. H. Lancia1, N. Carnel2, A. G. Lellouch1, C. Cetrulo1, G. Benichou2

    1Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 2Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA

    *Purpose: Exosomes released by transplanted organs play an important role in the host's immune response leading to their rejection. Donor exosomes contribute to alloimmunity by…
  • 2021 American Transplant Congress

    Leukopenia in the Renal Transplant Population

    A. Johnson1, G. Karadkhele2, C. Larsen1

    1Emory University, Atlanta, GA, 2Surgery, Emory University, Atlanta, GA

    *Purpose: Leukopenia is a common complication for transplant patients on immunosuppression, but etiologies, timing, and outcomes are only superficially understood.*Methods: All patients undergoing kidney transplant…
  • 2020 American Transplant Congress

    Filgrastim Utilization Evaluation in Solid Organ Transplant Recipients

    O. Witkowsky, L. Stanz, K. Schnelle

    The Ohio State University Wexner Medical Center, Columbus, OH

    *Purpose: Neutropenia occurs in up to 40% of kidney and liver transplant (txp) recipients and has been associated with higher mortality rates in liver txp.…
  • 2020 American Transplant Congress

    Recipient Myeloid Cell Myeloperoxidase is Required for Nk Cell Activation During Antibody-Mediated Allograft Rejection

    S. Miyairi, N. Dvorina, K. S. Keslar, A. Valujskikh, W. M. Baldwin, R. L. Fairchild

    Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, OH

    *Purpose: Dysregulated donor-specific antibody (DSA) responses are induced in B6.CCR5-/- mice transplanted with complete MHC mismatched A/J kidney allografts and are required for rejection of…
  • 2020 American Transplant Congress

    Neuropilin 2 is a Novel Coinhibitory Molecule That Suppresses Alloimmune Responses Following Transplantation

    J. Wedel, J. Lee, N. Kochupurakkal, E. Chernov, M. Poreddy, K. Liu, S. Kong, D. Bielenberg, H. Nakayama, D. M. Briscoe

    Boston Children's Hospital, Boston, MA

    *Purpose: We have previously reported that signaling via the transmembrane receptor neuropilin 2 (NRP2) regulates PI3K/mTOR/Akt activity in several human cell lines. Furthermore, it is…
  • 2020 American Transplant Congress

    Outcomes in Liver Transplantation with Use of Granulocyte-Colony Stimulating Factor

    K. Schnelle, A. Leino, M. Chunduru, L. Von Stein, O. Witkowsky

    The Ohio State Wexner Medical Center, Columbus, OH

    *Purpose: Questions remain if treatment with a granulocyte-colony stimulating factor (G-CSF) impacts clinical outcomes after liver transplant. The purpose of this study was to compare…
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