2021 American Transplant Congress
Treg Lymphotoxin Engages Lymphotoxin Receptor on Cancer and Endothelial Cells to Promote Cancer Metastatic Migration: Mechanisms for Treg-Cancer Interactions
*Purpose: Treg immune suppression which is critical for transplant graft survival may also enhance tumor growth and metastases. Treg lymphotoxin (LTα1β2) may directly engage the…2021 American Transplant Congress
Treg Engagement of Lymphotoxin Beta Receptor in Lymphatic Endothelial Cells is Required for Allograft Protection
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Sequential migration of regulatory T cells (Treg) from graft to afferent lymphatics and lymph nodes (LN) is needed for Treg suppressive function. Migration requires…2021 American Transplant Congress
CD80/PD-L1 Uniquely Regulates CD4 Effector T Cell Migration
1U Maryland, baltimore, MD, 2U Minnesota, Minneapolis, MN, 3Harvard U, boston, MA
*Purpose: CD80 is a costimulatory molecule expressed on antigen presenting cells (APCs) that binds CD28 and CTLA4, stimulating or inhibiting immunity, respectively. CD80 also binds…2021 American Transplant Congress
Association Between HLA Class II and TLR4 Regulates HLA-II Stimulated P-selectin Expression and Monocyte Capture to Endothelial Cells
Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA
*Purpose: Antibody-mediated rejection (AMR) is a major obstacle for long-term allograft survival. Donor specific HLA antibodies (DSA) contribute to the process of AMR by binding…2021 American Transplant Congress
Caspase-3 is a Predominant Regulator of Microvascular Dysfunction and Aki-ckd Transition Post Renal Ischemia-reperfusion Injury
CRCHUM, University of Montreal, Montreal, QC, Canada
*Purpose: Ischemia-reperfusion injury (IRI) is a major risk factor for chronic renal failure. Caspase-3, an effector responsible for apoptosis execution, is activated within tubular epithelial…2021 American Transplant Congress
Resolution of Endothelial Inflammation is Delayed Following IFNγ, Which Provokes a Long-lasting Pro-adhesive Phenotype Dependent on JAK/STAT Signaling
Pathology and Laboratory Medicine, UCLA, Los Angeles, CA
*Purpose: Although many cytokines are upregulated within allografts undergoing rejection, intragraft transcripts are dominated by IFN-response signatures. Resolution is a key phase of inflammation needed…2021 American Transplant Congress
Endothelial Glycocalyx Shedding is Associated with Graft Quality During Ex Vivo Lung Perfusion
Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, PA
*Purpose: Endothelial glycocalyx is the surface protective layer of the endothelial cells and its damage is known to be strongly associated with organ dysfunction. However,…2021 American Transplant Congress
PD-1/PD-L1 Selectively Regulates Treg Lymphatic Migration
*Purpose: The molecules that regulate Treg migration are incompletely identified. Programmed death-1 (PD-1) and its ligand PD-L1 are immune checkpoint proteins which regulate immune cell…2021 American Transplant Congress
LTβR Engagement Regulates Treg Migration, Stability and Suppressor Function
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Regulatory T cell (Treg) lymphatic migration and maintenance of transcription factor Foxp3 expression are required for suppressor function and allograft protection. Treg stimulate lymphotoxin…2021 American Transplant Congress
Atg16l-Dependent Autophagy Attenuates Procession of Renal Interstitial Fibrosis in Chronic Renal Graft Dysfunction via Regulating Tumor Necrosis Factor Alpha (tnf-α) Induced Endmt
The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
*Purpose: Chronic renal graft dysfunction is characterized by inflammation, tubular injury, and interstitial fibrosis. We have confirmed that endothelial-mesenchymal transition (EndMT) was one of important…
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