ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Lymphocytes"

  • 2019 American Transplant Congress

    The Inverted Renal CD4/CD8 Ratio Associated with the Development of Transplant Glomerulopathy and Arteriosclerosis

    B. H. Ozdemir1, F. N. Ozdemir2, A. Ok Atılgan1, E. Akcay1, M. Haberal3

    1Pathology, Baskent University, Ankara, Turkey, 2Nephrology, Baskent University, Ankara, Turkey, 3Transplantation, Baskent University, Ankara, Turkey

    *Purpose: Inversion of the CD4/CD8 ratio (
  • 2018 American Transplant Congress

    Immune Phenotyping in a Pediatric Multicenter Transplant Study: Suitability of a Pre-Formulated Dry Antibody Panel System

    S. Urschel,1 L. Ionescu,1 T. Blydt-Hansen,3 B. Foster,5 S. Mital,2 U. Allan,2 S. Iveson,3 L. Hamiwka,4 J. Yap,1 V. Phan,5 P. Birk,6 L. West,1 M. Levings.3

    1U of Alberta, Edmonton, Canada; 2Sickkids, Toronto, Canada; 3U of BC, Vancouver, Canada; 4U of Calgary, Calgary, Canada; 5Montreal Children's, Montreal, Canada; 6U Manitoba, Winnipeg, Canada.

    Background:Flow cytometric immune-phenotyping is influenced by cryopreservation and inter-laboratory variability limiting comparability in multi center studies. The Duraclone™ system (DC) provides optimized pre-mixed dry antibody…
  • 2018 American Transplant Congress

    DNA Methylation Age and Differential Patterns of DNA Methylation in Older Compared with Younger Kidney Transplant Recipients

    J. Schaenman, X. Zhou, R. Guo, M. Rossetti, E. Liang, B. Abdalla, E. Lum, S. Bunnapradist, G. Danovitch, E. Reed, D. Elashoff.

    David Geffen School of Medicine at UCLA, Los Angeles, CA.

    Introduction: Older transplant recipients experience increased rates of infection and death, but decreased rates of rejection, suggesting a role of immune dysfunction. Analysis of DNA…
  • 2018 American Transplant Congress

    Patients Converted to Belatacept Show Different Immunophenotyping Compared with De Novo Belatacept-Treated Patients

    M. Rial,1 F. Caro,2 A. Nella,2 D. Guerrieri,2 L. León,1 P. Uva,1 E. Chuluyan,2 D. Casadei.1

    1Instituto de Nefrología, Nephrology, Buenos Aires, Argentina; 2CEFYBO, UBA, CONICET, Buenos Aires, Argentina.

    The incidence of adverse clinical events mainly in early, but not late post-transplantation such as an increased rate of acute rejection precludes the use of…
  • 2018 American Transplant Congress

    The Neutrophil to Lymphocyte Ratio is Confounded by MELD in Hepatocellular Carcinoma Patients Undergoing Liver Transplantation

    J. McVey, K. Sasaki, F. Dan, Q. Cristiano, H. Koji, M. Charles, A. Federico.

    Department of General Surgery Digestive Disease Institute, Cleveland Clinic, Cleveland, OH.

    Background: Biological markers such as the pre-operative neutrophil to lymphocyte ratio (NLR) have been suggested to be valuable indicators of recurrence and overall survival after…
  • 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…
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