Articles tagged "Endothelial cells"

2020 American Transplant Congress
Carfilzomib-Based Desensitization: Effects on HLA, Non-HLA, Auto, and Antiviral Antibodies
S. Tremblay¹, E. Portwood¹, A. R. Shields², R. R. Alloway¹, P. A. Brailey¹, E. Woodle¹
¹U Cincinnati, Cincinnati, OH, ²U Cincinnati, Christ Hospital, Cincinnati, OH
*Purpose: An important question in plasma cell (PC) therapies is the specificity of therapy for PC populations. It is known that plasmablast populations are exquisitely…
2020 American Transplant Congress
PD-1 Signals Murine and Human Treg for Enhanced Migration
W. Piao¹, Y. Xiong¹, L. Li¹, K. Hippen², Y. Zhang², V. Saxena¹, C. Paluskievicz¹, M. WillsonShirkey¹, B. Blazar³, L. Riella⁴, J. Bromberg⁵
¹Surgery, U of Maryland, Baltimore, MD, ²U of Minnesota, Minneapolis, MN, ³Surgery, U of Minnesota, Minneapolis, MN, ⁴Harvard U, Boston, MA, ⁵Surgery and Microbiology and Immunology, U of Maryland, Baltimore, MD
*Purpose: Programmed death-1 (PD-1) attenuates immune responses. Engagement of PD-1 by its ligands PD-L1 or PD-L2 regulates T cell development, proliferation, cytokine production, and apoptosis.…
2020 American Transplant Congress
Single-Cell RNA Sequencing Reveals Gene Expression Profiling of Ischemia Reperfusion Injury
L. Wang, S. He, J. Xu, Z. Guo, X. He
Organ Transplant Center, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
*Purpose: Ischemia-reperfusion injury (IRI) during liver transplantation is an important factor that leads to graft dysfunction and even recipient death. This study aims to explore…
2020 American Transplant Congress
Anti-Thymocyte Globulins Induced Immunomodulatory Effect and Increased Regulatory T Cell in a In Vitro Model of Allogeneic Cell Coculture
M. Colladant¹, J. Lion², P. Saas³, S. Perruche³, D. Ducloux¹, N. Mooney², J. Bamoulid¹
¹Nephrologie, Dialyse et Transplantation, CHU de Besançon, Besancon, France, ²Equipe INSERM: Endothelium, Inflammation et Alloreactivity INSERM UMR-S 976, Paris, France, ³INSERM U1098 RIGHT, Université de Franche-Comté EFS Bourgogne Franche-Comté, Besancon, France
*Purpose: Two types of Anti-Thymocyte Globulins (ATG) are commonly used in renal transplantation (Thymoglobuline and Grafalon) and induce severe, dose-dependent and sometimes persistent CD4+ T…
2020 American Transplant Congress
Immuno-Modulation of Primed Xenogeneic T Cell Response by mTOR Blockade of T Cells and Porcine Endothelial Cells
S. Li, A. Kirk, H. Xu
Surgery, Duke University, Durham, NC
*Purpose: Porcine vascular endothelial cells (PECs) play a central role in xeno-recognition and costimulation. The objectives of this study were to characterize the immuno-phenotype of…
2020 American Transplant Congress
Crosstalk between TLR4 and HLA Class I Mediates P-Selectin Expression and Monocyte Capture to Endothelial Cells
Y. Jin, N. M. Valenzuela, R. A. Sosa, E. F. Reed
Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA
*Purpose: Transplant recipients developing donor specific HLA antibodies (DSA) are at risk for acute and chronic antibody-mediated rejection (AMR). DSA contribute to the process of…
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)…
2020 American Transplant Congress
Single Cell RNA Sequencing of Normal Kidney Allograft Surveillance Biopsies Show Evidence of Dynamic Glomerular Endothelial Cell Activation
A. S. Naik, R. Menon, E. Otto, C. C. Berthier, E. Farkash, S. P. Norman, M. Kretzler
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…
2020 American Transplant Congress
The Role of Galectin-1 and Basement Membrane Remodeling in Kidney Antibody-Mediated Rejection
S. Clotet-Freixas¹, C. McEvoy¹, I. Batruch², M. Kotlyar³, C. Pastrello³, J. Van¹, M. Arambewela¹, A. Boshart¹, S. Farkona¹, A. Bozovic⁴, V. Kulasingam⁴, P. Chen¹, I. Jurisica³, A. Chruscinski¹, R. John⁴, A. Konvalinka⁵
¹Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada, ²Department of Laboratory Medicine and Pathobiology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada, ³Krembil Research Institute, University Health Network, Toronto, ON, Canada, ⁴Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada, ⁵Department of Medicine, Division of Nephrology, University Health Network, Toronto, ON, Canada
*Purpose: Antibody-mediated rejection (AMR), the leading cause of kidney graft loss, is caused by anti-HLA and non-HLA antibodies against proteins in two main kidney compartments:…
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…

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