Abstracts Archive - Page 453 of 1683 - ATC Abstracts

2020 American Transplant Congress
Characterization of CpG-stimulated, Tlr Regulatory, and Expanded Regulatory B Cells by RNA-Seq
Q. Fu, G. C. Rickert, K. Lee, G. Huai, K. Deng, N. Feeney, N. Tanimine, A. Cuenca, S. Deng, J. F. Markmann
Center for Transplant Science, MGH, Boston, MA
*Purpose: Our group previously reported three different types of in vitro generated B cell populations. Expanded regulatory B cells (eBregs), TLR regulatory B cells (TLR-Bregs),…
2020 American Transplant Congress
Targeting the CD40/CD40L Axis in Sensitized Nonhuman Primate Allotransplantation
Z. W. Fitch, R. Schmitz, M. Manook, A. Y. Choi, J. Yoon, J. Kwun, S. J. Knechtle
Duke University, Durham, NC
*Purpose: Blockade of the CD28/B7 costimulation pathway has shown great promise as part of desensitization and maintenance immunosuppression regimens in our sensitized nonhuman primate model.…
2020 American Transplant Congress
Transcriptomic Profiling of Paired Serum and Biopsy Samples from FSGS Patients
C. Kuscu¹, M. Kiran², A. Wolen¹, C. Kuscu¹, A. Bajwa¹, J. Eason¹, D. Maluf¹, E. Akalin³, V. Mas¹
¹Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, ²Department of Systems and Computational Biology, University of Hyderabad, Hyderabad, India, ³Department of Medicine and Surgery, Albert Einstein College of Medicine, New York, NY
*Purpose: Pathogenesis and molecular footprints of focal segmental glomerulosclerosis (FSGS) after kidney transplantation whether it is primary or secondary is unknown. Herein, we studied a…
2020 American Transplant Congress
Laminin Alpha5 Regulates T Cell Entry and Distribution in Lymph Nodes in Immunity
L. Li¹, M. Shirkey¹, W. Piao¹, Y. Xiong¹, V. Saxena¹, T. Zhang¹, C. Paluskievicz¹, J. Zhao², R. Abdi², J. S. Bromberg¹
¹UMB, Baltimore, MD, ²Harvard University, Boston, MA
*Purpose: Laminin α5 (Lama5) and α4 (Lama4) are lymph node (LN) stromal fibers whose expression ratio influences CD4+ T cell migration and stimulation. We hypothesized…
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
Recipient LAG3 Deficiency Results in Antibody-Mediated Rejection of Mouse Renal Allografts
M. Nicosia, R. Fan, J. Lee, V. Gorbacheva, A. Beavers, N. Dvorina, W. M. Baldwin III, R. L. Fairchild, B. Min, A. Valujskikh
Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
*Purpose: Lymphocyte activation gene-3 (LAG3) is a coinhibitory receptor on the surface of T and B lymphocytes, NK cells and plasmacytoid dendritic cells. Its functions…
2020 American Transplant Congress
CD4+ T-Cells Express High Levels of Messenger RNA Coding for Heparanase in Cultures with Matrigel
N. Chai, G. Wu, I. Kim, S. Jordan, A. Klein, T. Brennan
Cedars-Sinai Med Ctr, Los Angeles, CA
*Purpose: Heparanase (Hpse) is the sole heparan sulfate (HS) degrading enzyme regulating multiple biological activities that enhance immune cell migration, blood vessel growth and cell…
2020 American Transplant Congress
Treg Use PD-1 for Lymphatic Migration
W. Piao¹, L. Li¹, K. Hippen², Y. Zhang³, Y. Xiong¹, V. Saxena¹, C. Paluskievicz¹, M. WillsonShirkey¹, B. Blazar⁴, L. Riella⁵, J. Bromberg⁶
¹Surgery, U of Maryland, Baltimore, MD, ²U of Minnesota, Minneapolis, MN, ³U of Maryland, Minneapolis, MD, ⁴U of Minnesota, Minneapolis, MA, ⁵Harvard U, Boston, MA, ⁶Surgery and Microbiology and Immunology, U of Maryland, Baltimore, MD
*Purpose: Regulatory T cell (Treg) lymphatic migration is important for immune tolerance. Treg express both programmed death-1 (PD-1) and its ligand PD-L1, which are important…
2020 American Transplant Congress
Investigation of Il35 Expressing Regulatory B Cells in Tolerance of Kidney Transplantation
J. A. Sullivan, J. H. Fechner, E. Jankowska-Gan, W. J. Burlingham, D. B. Kaufman
Surgery, University of Wisconsin, Madison, WI
*Purpose: The development and maintenance of peripheral tolerance is required for long term success of solid organ transplantation without immuno-suppressive drugs. Using a novel, post-transplant,…
2020 American Transplant Congress
A Single-Cell Transcriptome Atlas of 15 Adult Human Organs
Z. Guo¹, S. He², L. Wang¹, Y. Liu², J. Xu¹, J. Bei², X. He¹
¹Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China, ²The Cancer Centre of Sun Yat-Sen University, Guangzhou, China
*Purpose: The transcriptome diversity of cell types within and across tissues is of great importance for biological function of human beings. Here we conducted a…