ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Lymphocytes"

  • 2019 American Transplant Congress

    A Novel Method for Ex Vivo Treg Expansion via Human iNKT Cell Activation

    R. Ishii1, I. Masako1, H. Katsumata1, T. Kanzawa1, T. Yamakawa1, H. Ishigooka1, T. Hirai1, K. Saiga1, M. Okumi1, Y. Ishii2, K. Tanabe1

    1Urology, Tokyo Women's Medical University, Tokyo, Japan, 2Vaccine Innovation Laboratory RIKEN Cluster for Science, Technology and Innovation Hub (RCSTI), Kanagawa, Japan

    *Purpose: Tregs play a critical role in immune tolerance. If Tregs can be administered to patients suffering from immune disorders, most therapies employing existing immunosuppressants…
  • 2018 American Transplant Congress

    Modification of Macrophage Phenotype by the Magnetic Field

    M. Kloc,1 W. Chen,1 J. Kubiak,2,3 X. Li,1 R. Ghobrial,1 J. Wosik.4

    1Houston Methodist Research Institute, Houston, TX; 2WIHE, Warsaw, Poland; 3University of Rennes, Rennes, France; 4University of Houston, Houston.

    Objective. Macrophages play a crucial role in health, disease and chronic rejection of transplanted organs. Chronic rejection of transplanted organs remains unresolved issue in organ…
  • 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

    Aquaporin 4 Blockade Alters T Cell Trafficking through a Novel Mechanism of S1PR1 Regulation

    M. Nicosia,1 R. Fan,1 S. Miyairi,1 A. Beavers,1 G. Farr,2 P. McGuirk,2 M. Pelletier,2 A. Valujskikh.1

    1Immunology, Cleveland Clinic, Cleveland, OH; 2Aeromics LLC, Cleveland, OH.

    The ubiquitous water channels aquaporins mediate a variety of immune functions. We previously demonstrated that aquaporin 4 (AQP4) is expressed by CD4 and CD8 T…
  • 2018 American Transplant Congress

    Screening of RhoA/ROCK Inhibitors for the Ability to Prevent Chronic Rejection of Mouse Cardiac Allografts

    W. Chen, W. Chen, X. Li, R. Ghobrial, M. Kloc.

    THMRI, Houston, TX.

    Objectives. Chronic rejection of transplanted organs is a major obstacle in human organ transplantation. Although the mechanisms of chronic rejection are poorly understood it is…
  • 2018 American Transplant Congress

    Mitochondrial Autophagy Proteins Bnip3 and Nix Maintain Memory B Cell Survival

    S. Kodali,1 H. Sandoval,1 M. Chen,2 J. Wang.1

    1Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston, TX; 2Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX.

    Despite the use of immunosuppressive drugs, allograft rejection remains a major hurdle for the long-term success of organ transplants. Burgeoning evidence implicates memory B cells…
  • 2018 American Transplant Congress

    Lymph Node Stromal Laminins Affect Graft Survival through Regulation of CD4 T Cell Proliferation and Migration

    L. Li, T. Simon, W. Piao, Y. Xiong, V. Saxena, T. Zhang, C. Wagner, J. Bromberg.

    University of Maryland, Baltimore, MD.

    Background: Our prior studies demonstrated that tolerance and immunity are associated with differential expression of lymph node (LN) stromal laminins α4β1γ1 (411) and α5β1γ1 (511),…
  • 2018 American Transplant Congress

    Lymphotoxin Beta Receptor Modulation in Lymphatic Endothelial Cells Alters Regulatory T Cell Dynamics

    V. Saxena, W. Piao, Y. Xiong, L. Li, C. Wagner, J. Bromberg.

    U Maryland, Baltimore, MD.

    Background:Lymphotoxin beta receptor (LTβR) mediated signaling in lymphatic endothelium cells (LEC) is important for migration of regulatory T cells (Treg) to afferent lymphatic vessels (LV)…
  • 2018 American Transplant Congress

    Mechanisms of DEPTOR Function in CD4+ T Cell Subsets

    J. Wedel,1 K. Liu,1 P. Sage,2 M. Laplante,3 D. Briscoe.1

    1Transplant Research Program, Boston Children's Hospital, Harvard Medical School, Boston; 2Department of Microbiology and Immunobiology, Harvard Medical School, Boston; 3IUCP, Lavel University, Quebec, Canada.

    We have previously observed that the cell intrinsic modulatory protein DEPTOR (DEP) stabilizes Foxp3 expression, enhances Treg function and inhibits Treg dedifferentiation. In vivo, sustained…
  • 2018 American Transplant Congress

    T cell Phenotypes Predict Infectious Risk in Transplanted Children

    E. T. Chambers,1 R. Ettenger,2 H.-J. Lee,1 C. Chan,1 L. Stempora,1 B. Warshaw,3 P. Grimm,4 E. F. Reed,2 M. Sarwal,5 A. Kirk.1

    1Pediatrics/Surgery, Duke University, Durham; 2Pediatrics, UCLA, Los Angeles; 3Pediatrics, Emory, Atlanta; 4Pediatrics, Stanford, Palo Alto; 5Surgery, UCSF, San Francisco.

    AIM: Current monitoring strategies do not adequately differentiate infection from complications such as allograft rejection (AR). We aimed to identify peripheral T cell phenotypes that…
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