2019 American Transplant Congress
Ligation Of Hla Class Il Molecules Disrupts Endothelial Barrier Through Src-dependent Ve-cadherin Destabilization
*Purpose: Microvascular inflammation, vascular permeability, and accumulation of intravascular mononuclear cells are characteristics of acute and chronic antibody-mediated rejection. Vascular endothelial cadherin (VE-Cadherin) is a…2019 American Transplant Congress
Single Cell RNA-seq Analysis of Antibody-Mediated Rejection Reveals Endothelial – Pericyte NOTCH Signaling
Washington University School of Medicine, Saint Louis, MO
*Purpose: To precisely define endothelial cell responses in AMR we performed comprehensive single cell RNA-seq on a human kidney biopsy with AMR.*Methods: Single cell libraries…2019 American Transplant Congress
A Novel Ex Vivo Normothermic Perfusion Model of Human Antibody Mediated Rejection
*Purpose: Currently, no human experimental model of antibody-mediated rejection (AMR) exists, making the assessment of therapeutic interventions difficult hence the aim of our work is…2019 American Transplant Congress
Differential Regulation of Phosphokinases by Anti-HLA Class I and 11 Antibodies
*Purpose: Anti-HLA antibodies, both pre-formed and de novo are associated with worse graft survival. Glomerular endothelial cells are the targets for antibody mediated rejection. We…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…2018 American Transplant Congress
Assessing the Impact of Flow in Hypothermic Machine Perfusion on Human Venous Endothelium Using a Novel Ex Vivo Model
BACKGROUNDHypothermic machine perfusion (HMP) involves dynamic flow of chilled preservation fluid through an allograft's vasculature. This study describes a simple, reproducible, human model that allows…2018 American Transplant Congress
Peripheral but Not Follicular T Helper Cells Are Activated by Allogeneic Human Endothelial Cells under IRI-Like Conditions and Promote Donor Specific Antibody
Background: Perioperative ischemia reperfusion injury (IRI) is a consequence of solid organ allograft transplantation that primes the graft for future rejection.Methods: We developed an in…2018 American Transplant Congress
Anti-Angiotensin II Type 1-Receptor Antibodies (AT1R-Ab) Induce a Specific Phenotype of Rejection Distinct from HLA Antibody-Mediated Rejection
AT1R-Ab have been associated with kidney allograft rejection; however, their ability to induce a specific rejection phenotype, independent of HLA-DSAs, has not been defined.In a…2018 American Transplant Congress
The Utility of a CD31/CD68 Dual Immunohistochemical Stain to Improve Accurate Diagnosis of Antibody Mediated Rejection in Cardiac Transplantation
Thoracic Pathology, University of Texas Southwestern Medical Center, Dallas, TX.
Antibody mediated rejection (AMR) occurs in 10%-20% of cardiac transplant patients and is associated with increased mortality. The endomyocardial biopsy, used to identify microvascular injury…2018 American Transplant Congress
Endothelial Cell Heterogeneity Governs Basal and Inducible Inflammatory Responses Relevant to Allograft Injury
Pathology and Laboratory Medicine, UCLA, Los Angeles, CA.
PurposeTransplanted tissues are differentially susceptible to ischemia/reperfusion and rejection. Endothelial cells (EC) are active regulators of inflammation. But model EC may not adequately reflect the…
American Transplant Congress abstracts