ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Endothelial cells"

  • 2022 American Transplant Congress

    Novel Phenotype of Intragraft Endothelial Cells That Modulates CD4+ T Effector-Mediated Rejection

    J. Wedel, K. Liu, T. Seto, S. Kong, D. M. Briscoe

    Boston Children's Hospital, Boston, MA

    *Purpose: Previous studies have suggested that early adoptive transfer of Teff into Rag KO mice bearing cardiac transplants results in acute rejection. However, if transfer…
  • 2022 American Transplant Congress

    Lymphotoxin Beta Receptor Classical NFkB Signaling in Lymphatic Endothelial Cells Drives Treg Tissue Stability

    V. Saxena1, W. Piao1, L. Li1, M. W. Shirkey1, R. Lakhan1, S. Walden2, K. L. Hippen2, B. Blazar2, J. S. Bromberg1

    1University of Maryland School of Medicine, Baltimore, MD, 2University of Minnesota, Minneapolis, MN

    *Purpose: Regulatory T cell (Treg) suppressor function and allograft protection depend on maintenance of transcription factor Foxp3 expression and lymphatic migration, respectively. Treg lymphotoxin (LT)…
  • 2022 American Transplant Congress

    DEPTOR: A Novel Endothelial-Specific Regulator of Cell-Intrinsic Anti-Inflammation Following Transplantation

    C. Testini1, S. Bose1, K. Liu1, S. Kong1, E. Flynn1, M. Miovski1, J. Leyva-Rangel1, M. Laplante2, J. Wedel1, D. M. Briscoe1

    1Boston Children's Hospital and Harvard Medical School, Boston, MA, 2Laval University, Quebec, QC, Canada

    *Purpose: Recent studies have highlighted a paradigm whereby the maintenance of normal tissue homeostasis and the prevention of chronic inflammation is dependent on the active…
  • 2022 American Transplant Congress

    Iguratimod Alleviates Endothelial to Mesenchymal Transition by Inducing AMBRA1/PARKIN-Dependent Mitophagy and Inhibiting NLRP3 Activation During Renal Allograft Interstitial Fibrosis

    Z. Gui1, W. Zijie2, M. Zheng3, R. Tan3, M. Gu4

    1Department of Urology, The Second Affiliated Hospital with Nanjing Medical University, Nanjing, China, 2Jiangsu Province Hospital, Nanjing, China, 3Department of Urology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China, 4Department of Urology, the Second Affiliated Hospital with Nanjing Medical University, Nanjing, China

    *Purpose: Chronic renal graft dysfunction (CAD) is caused by multiple factors, including glomerular sclerosis, inflammation, interstitial fibrosis and tubular atrophy (IF/TA). However, the most prominent…
  • 2022 American Transplant Congress

    Ex Vivo Modification of Vascular Allografts Using Immunosuppressive and Anti-Inflammatory Polymers Prevent Rejection via Localized Immunosuppression

    H. D. Luo1, E. M. Siren1, W. Enns2, L. Sim1, C. Du1, S. G. Withers1, J. Choy3, J. N. Kizhakkedathu1

    1The University of British Columbia, Vancouver, BC, Canada, 2Simon Fraser University, Burnaby, BC, Canada, 3Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada

    *Purpose: Classical immunosuppressants lead to systemic immune shutdown, though necessary to mediate transplant rejection, it may lead to various complications. To reduce off-target immunosuppression while…
  • 2022 American Transplant Congress

    3D Co-Culture System with Porcine Aortic Endothelial Cell Line and Human or Non-Human Primate Cells for Application in the Study of Xeno-Immune Reaction

    S. K. Yadav1, Y. Lee2, S. Hurh3, S. Kim2, J. Yang4, J. C. Jeong2

    1Medicine, Seoul National University, Seoul, Korea, Republic of, 2Internal Medicine (Nephrology), Seoul National University Bundang Hospital, Seongnam, Korea, Republic of, 3Medicine, Korea University, Seoul, Korea, Republic of, 4Internal Medicine (Nephrology), Yonsei University, Seoul, Korea, Republic of

    *Purpose: Neutrophil Extracellular Trap (NET) is a vigorous immune reaction of neutrophil. It plays role in xenotransplantation rejection. Functional assay of NET is important; however,…
  • 2022 American Transplant Congress

    MTOR Inhibition Acts Directly on Endothelial Cells to Induce Contact-Independent Immune-Modulation of Allo-Specific T Cell Activation

    H. Xu, L. Wang, V. A. Bendersky, Q. Gao, Q. Li, A. D. Kirk, H. Xu

    Duke University School of Medicine, Durham, NC

    *Purpose: Endothelial cells (ECs) form a barrier between vascularized organ allografts and host immunity and are known to provoke alloimmune responses. The mTOR inhibitor rapamycin…
  • 2022 American Transplant Congress

    Engineered Adaptable Human Endothelial Cells Enable Durable Engraftment of Subcutaneously Transplanted Islets

    R. Craig-Schapiro, G. Li, S. Rafii

    Weill Cornell Medical College, New York, NY

    *Purpose: The current clinical practice of islet transplantation into the portal vein is suboptimal, with reduced vascularization limiting successful engraftment and the inability for monitoring…
  • 2022 American Transplant Congress

    Pd-1 Licenses Activated Treg for Lymphatic Migration

    W. Piao1, L. Li1, V. Saxena1, K. Hippen2, M. Shirkey1, B. Blazar2, I. Lape3, y. zhang3, J. Bromberg1

    1Surgery, University of Maryland, Baltimore, MD, 2University of Minnesota, Minneapolis, MN, 3Harvard Medical School, Boston, MA

    *Purpose: In addition to serving as fluid conduits, lymphatic vessels are critical portals for immune cell migration. Lymphatic endothelial cells (LECs) constitutively express high levels…
  • 2022 American Transplant Congress

    Treg Migration and Suppression Require Engagement with Lymphotoxin Beta Receptor on Lymphatic Endothelial Cells to Protect Islet Allografts

    V. Saxena1, W. Piao1, L. Li1, M. WillsonShirkey1, R. Lakhan1, S. Walden2, K. L. Hippen2, B. R. Blazar2, J. S. Bromberg1

    1University of Maryland School of Medicine, Baltimore, MD, 2University of Minnesota, Minneapolis, MN

    *Purpose: Treg sequential migration from graft to draining lymph nodes (dLN) via afferent lymphatics is required for Treg suppressive function. Treg lymphotoxin alpha beta (LTαβ)…
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