ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Mice, knockout"

  • 2020 American Transplant Congress

    Ifnar Signaling on Myeloid Cells Does Not Contribute to Costimulation Independent Transplant Rejection

    J. Habib, D. Mathews, Y. Dong, A. Stephenson, A. Adams

    Emory University, Atlanta, GA

    *Purpose: Costimulation blockade (CoB) is a promising new strategy that provides a more targeted therapy with fewer side effects compared to traditional transplant immunosuppressants, leading…
  • 2020 American Transplant Congress

    TGR5/Cathepsin E Signaling Regulates Macrophage Innate Immune Activation in the Sterile Inflammatory Liver Injury

    H. Zhou, S. Zhou, Q. Wang, Z. Rao, X. Wang, L. Lu

    The First Affiliated Hospital of Nanjing Medical University, Nanjing, China

    *Purpose: The hepatic proinflammatory response represents a major cause of liver ischemia and reperfusion (IR) injury. Although the role of plasma membrane-bound G protein-coupled bile…
  • 2020 American Transplant Congress

    Treg Stability Depends on Lymphotoxin Beta Receptor-Driven Migration

    V. Saxena, W. Piao, L. Li, Y. Xiong, C. Palusckievicz, T. Simon, M. Shirkey, R. Abdi, J. S. Bromberg

    University of Maryland, Baltimore, Baltimore, MD

    *Purpose: Regulatory T cell (Treg) suppressor function for allograft survival requires maintenance of transcription factor Foxp3 and sequential migration from tissues to lymph nodes (LN).…
  • 2020 American Transplant Congress

    Lymphotoxin Beta Receptor Regulates Draining Lymph Node Structure and Treg Migration

    V. Saxena1, W. Piao1, L. Li1, Y. Xiong1, C. C. Palusckievicz1, T. Simon1, M. W. Shirkey1, R. Abdi2, J. S. Bromberg1

    1University of Maryland, Baltimore, Baltimore, MD, 2Harvard U, Boston, MA

    *Purpose: To induce tolerance, regulatory T cells (Treg) are required to migrate from tissues via afferent lymphatic vessels (LV) to the draining lymph node (dLN).…
  • 2020 American Transplant Congress

    The Role of CXCL16/CXCR6 in Mediating Macrophage Chemotaxis and M1 Macrophage Polarization in Murine Renal Ischemia Reperfusion Injury

    W. Zhang1, X. Zhang2, G. Tu2, C. Yang1, G. Qi1, M. Xu1, T. Zhu1

    1Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China, 2Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China

    *Purpose: The objective of this study is to investigate the role of Chemokine (C-X-C motif) ligand 16 (CXCL16) and its unique receptor C-X-C chemokine receptor…
  • 2020 American Transplant Congress

    Treg Protection of the Allograft Depends on Lymphotoxin Beta Receptor Expression in Lymphatic Endothelial Cells

    V. Saxena1, W. Piao1, L. Li1, Y. Xiong1, C. Palusckievicz1, T. Simon1, M. Shirkey1, R. Abdi2, J. S. Bromberg1

    1University of Maryland, Baltimore, Baltimore, MD, 2Harvard U, Boston, MA

    *Purpose: Regulatory T cell (Treg) migration to afferent lymphatics and lymph nodes (LN), and suppressive function, require Treg lymphotoxin alpha (LTα) to stimulate LT beta-receptor…
  • 2020 American Transplant Congress

    Novel Role of Qa-1, a Murine Homolog of HLA-E, in Controlling Follicular Helper T Cells During Humoral Alloimmunity

    J. Y. Choi1, S. K. Eskandari1, S. Cai1, J. Assaker1, I. Sulkaj1, H. Allos1, J. Alhaddad1, P. Chu1, H. Kim2, H. I. Cantor2, J. R. Azzi1

    1Medicine, Brigham and Women's Hospital, Boston, MA, 2Immunology, Dana Farber Cancer Institute, Boston, MA

    *Purpose: Antibody-mediated rejection (AMR) is a major challenge in prolonging allograft survival. Limited insight into the humoral alloimmunity hinders the development of therapeutic strategies. We…
  • 2020 American Transplant Congress

    Cell-Free DNA (cfDNA) is Released by Necroptosis and Promotes Kidney Ischemia Reperfusion Injury

    A. C. Dionne

    Microbiology and Immunology, Western University, London, ON, Canada

    *Purpose: Transplantation is invariably associated with ischemia reperfusion injury (IRI) which causes organ dysfunction. IRI is also directly linked to several forms of programmed cell…
  • 2020 American Transplant Congress

    Characterization of Laminin Alpha 4 Conditional Knockout Mice: Model for Immune Stimulation

    M. W. Shirkey, L. Li, W. Piao, Y. Xiong, V. Saxena, T. Zhang, C. Paluskievicz, J. Bromberg

    U. Maryland, Baltimore, MD

    *Purpose: Lymph node (LN) stromal laminin α4 (Lama4) and α5 (Lama5) are associated with tolerance and immunity, respectively. We created a Lama4 conditional knockout (KO)…
  • 2019 American Transplant Congress

    Decay Accelerating Factor (DAF) Regulates Germinal Center B-cell and Alloantibody Formation

    A. Cumpelik1, G. Varano2, D. Heja1, D. Homann3, S. Lira4, D. Dominguez-Sola2, P. S. Heeger1

    1Nephrology, Mount Sinai School of Medicine, New York, NY, 2Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY, 3Medicine, Endocrinology, Diabetes and Bone Disease, Mount Sinai School of Medicine, New York, NY, 4Clinical Immunology, Mount Sinai School of Medicine, New York, NY

    *Purpose: High affinity IgG antibodies including alloantibodies result from germinal center (GC) reactions in which somatic hypermutation and positive selection cause affinity maturation. When we…
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