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American Transplant Congress abstracts

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Articles tagged "Natural killer cells"

  • 2017 American Transplant Congress

    NK Cells Respond to CMV Lysate by Inducing IFNγ and CD107a Surface Expression in an Antibody-Dependent Manner: This Represents a Cytokine Flow Cytometry (CFC) Assay That Could Assess Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) as a Marker of CMV Immunity in Transplant Recipients.

    S. Ge, C. Maggie, B.-H. Shin, A. Karasyov, S. Jordan, M. Toyoda.

    Transplant Immunology Laboratory and Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA

    Background: Viral infections represent significant morbidity factors for transplant recipients. Tools to assess the efficacy of viral-specific responses are lacking. ADCC is the major antibody-mediated…
  • 2017 American Transplant Congress

    CD40/CD40 Ligand Signal Controls Cytotoxic Ability of Natural Killer Cells After Invariant Natural Killer T Cell Stimulation.

    H. Fukuda,1 T. Hiai,1 R. Ishii,1 H. Katsumata,1 T. Kanzawa,1 S. Miyairi,1 M. Ikemiyagi,1 Y. Ishii,2 M. Okumi,1 K. Tanabe.1

    1Urology, Tokyo Women's Medical University, Tokyo, Japan; 2Cluster for Industry Partnerships (CIP), RIKEN IMS-RCAI, Tokyo, Japan

    Because iNKT cells have powerful immune-regulatory function, an administration of iNKT cell ligand; α-galactosylceramide (aGC) is one of the potent strategies for induction of transplant…
  • 2017 American Transplant Congress

    The Beneficial Effects of mTOR Inhibitors on Liver Resident Natural Killer Cells.

    J. Saparbay, Y. Tanaka, T. Yano, H. Ohdan.

    Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan

    (Background) The immunosuppressive regimen currently used after organ transplantation reduces adaptive components. Therefore, the innate immune cells play pivotal roles in immune surveillance and defense…
  • 2017 American Transplant Congress

    CCR5-Mediated Recruitment of NK Cells to the Kidney Is Critical for Resistance to Candida albicans Infections.

    J. Lee,1,4 V. Tran,3 H. Kim,1 B. Kwon,1,3 K. Park,1,4 H. Cho.1,2

    1Biomedical Research Center, Ulsan University Hospital and School of Medicine, University of Ulsan, Ulsan, Republic of Korea; 2Department of Surgery, Ulsan University Hospital and School of Medicine, University of Ulsan, Ulsan, South Korea, Republic of Korea; 3School of Biological Sciences, University of Ulsan, Ulsan, South Korea, Republic of Korea; 4Department of Internal Medicine, Ulsan University Hospital and School of Medicine, University of Ulsan, Ulsan, South Korea, Republic of Korea

    We previously showed that CCR5 mediates recruitment of NK cells to the kidney after renal ischemia and reperfusion, which in turn induce the production of…
  • 2017 American Transplant Congress

    Operational Tolerance in Intestinal Transplantation: A Proven Possibility.

    B. Houlihan,1 P. Cha,1,2 C. Cosentino,1,2 J. Kaiser,1,2 A. Shukla,1 J. Hawksworth,1,2 C. Matsumoto,1 T. Fishbein,1 A. Kroemer.1

    1Transplant Department, Medstar Georgetown University Hospital, Washington, DC; 2Surgery, Walter Reed National Military Medical Center, Bethesda, MD

    A The purpose of this study is to immunologically characterize the first operationally tolerant intestinal transplant (ITx) patient known to date.B Flow cytometry and rtPCR…
  • 2017 American Transplant Congress

    Innate Lymphoid Cells Play a Critical Role in Regulating Allograft Homeostasis in Human Intestinal Transplantation.

    P. Cha, B. Houlihan, J. Kaiser, C. Cosentino, B. Monahan, A. Shukla, J. Hawksworth, C. Matsumoto, T. Fishbein, A. Kroemer.

    Transplant, MedStar Georgetown Transplant Institute, Washington, DC

    A. The role of recently discovered innate lymphoid cells (ILCs) in intestinal transplant (ITx) patients is poorly understood. Here, we postulate that intestinal ILC subsets…
  • 2017 American Transplant Congress

    CD16a-Activated NK Cells in ABMR Are Highly Similar to CD3-Activated Effector T Cells in TCMR.

    M. Parkes, P. Halloran, L. Hidalgo.

    University of Alberta, Edmonton, Canada

    BACKGROUND: NK cell CD16a and T cell CD3 activate shared pathways. Since NK cell CD16a activation occurs in antibody-mediated rejection (ABMR) and T cell CD3…
  • 2017 American Transplant Congress

    The Role of Natural Killer Cells in Recognition and Killing of Stem Cells and Stem Cell-Derived Hepatoblasts.

    T. Cisneros, D. Dillard, M. Castro, J. Arredondo-Guerrero, S. Krams, C. Esquivel, O. Martinez.

    Surgery, Stanford University School of Medicine, Stanford, CA

    The generation of stem cell-derived hepatocytes holds promise as a cell-based treatment for liver disease. However, the immune response to stem cell-derived grafts is poorly…
  • 2017 American Transplant Congress

    Endocapillary NK Cells Are Increased in Indication Renal Transplant Biopsies with Antibody and T Cell Mediated Rejection.

    A. Shammout, J. Barnes, E. Farkash.

    Pathology, University of Michigan Medical School, Ann Arbor, MI

    Detection of NK cell transcripts in renal transplant biopsies is associated with antibody mediated rejection (AMR). Similarly, quantification of endocapillary NK cells in paraffin tissue…
  • 2017 American Transplant Congress

    The Degree of NK Cell Activation Determines the Ability of Donor-Specific Antibodies to Mediate Acute vs. Chronic Rejection of Kidney Allografts.

    T. Yagisawa,1,2 T. Tanaka,1 N. Dvorina,1 A. Valujskikh,1 W. Baldwin 3rd,1 R. Fairchild.1

    1Immunology and Glickman Urological Institute, Cleveland Clinic, Cleveland, OH; 2Urology, Tokyo Women's Medical University, Tokyo, Japan

    While the incidence of antibody-mediated kidney graft rejection has increased, the key cellular and molecular participants underlying this graft injury remain unclear. We have previously…
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