2020 American Transplant Congress
Activation of the ICOS/ICOS-Ligand Pathway in Antibody-Mediated Kidney Graft Rejection
*Purpose: The costimulatory pathway ICOS/ICOS-Ligand may represent a new therapeutic target in antibody-mediated rejection (ABMR), the major cause of long term kidney graft failure. The…2020 American Transplant Congress
Mitochondrion-Endothelial Interaction Generates Danger Signal in Promoting Costimulation-Resistant T Cell-Mediated Allograft Rejection
1Surgery, Duke University, Durham, NC, 2Immunology, Duke University, Durham, NC
*Purpose: Endothelial cells (ECs) play a critical role in allorecognition, presentation, and costimulation for initiation of alloimmune rejection. The objective of this study was to…2020 American Transplant Congress
PD-L1 Signals Lymphatic Endothelium for Treg Migration
*Purpose: Regulatory T cell (Treg) migration is important for tolerance, although the molecules that regulate Treg entry to lymphatics are poorly understood. Lymphatic endothelial cells…2020 American Transplant Congress
The Effect of Human Thrombomodulin on Thrombotic Complications in Life Supporting Pig-to-Baboon Cardiac Xenotransplantation
1Surgery, University of Maryland School of Medicine, Baltimore, MD, 2Revivicor, Blacksburg, VA
*Purpose: Transplantation of organs from animals to humans (xenotransplantation) has been proposed to address the critical shortage of organs for transplantation. The use of genetically…2020 American Transplant Congress
Vesicle-Associated Tweak is Increased During Acute Cellular Rejection and Contributes to Endothelial Inflammation
Cardiology, Lund University, Lund, Sweden
*Purpose: Extracellular vesicles (EVs) are released from immune cells upon activation and play direct roles in allograft tolerance and rejection, in part through delivery of…2020 American Transplant Congress
Ex Vivo Isolated Human Vessel Perfusion System for the Design and Assessment of Nanomedicines Targeted to the Endothelium
1Yale University, New Haven, CT, 2Yale School of Medicine, New Haven, CT
*Purpose: In solid organ transplantation the host immune system acts to reject the graft. This process is facilitated at the endothelial surface, where inflamed donor…2020 American Transplant Congress
Novel Technique to Analyze Blood-Endothelial Cell Interactions Under Flow Conditions
*Purpose: The Bioflux system has been used to study platelet-driven thrombosis and leukocyte adhesion. Typically, whole blood is stained with calcein (green) to evaluate platelet…2020 American Transplant Congress
Single Cell RNA Sequencing of Normal Kidney Allograft Surveillance Biopsies Show Evidence of Dynamic Glomerular Endothelial Cell Activation
University of Michigan, Ann Arbor, MI
*Purpose: Indication and surveillance biopsy studies show a high prevalence of post kidney transplant (KT) glomerular disease (ElZoghby 2009,Stegall 2017) that cannot be explained by…2019 American Transplant Congress
Clazakizumab Acts on Endothelial Cells to Limit Antibody Mediated Damage
*Purpose: Human microvascular endothelial cell expression of HLA class II antigens is strongly increased, both in vitro and in vivo, under inflammatory conditions. HLA class…2019 American Transplant Congress
ZFYVE21 is a Novel Complement-Induced Rab5 Effector Protein Mediating Cardiac Allograft Vasculopathy
*Purpose: Complement promotes vascular inflammation in transplant organ rejection, a process leading to cardiac allograft vasculopathy. In this study, we identify a new Rab5 effector…
American Transplant Congress abstracts