2021 American Transplant Congress
Digital Spatial Mrna Profiling Reveals Distinct Endothelial Transcripts in Dsa+ and Dsa- Endarteritis in Kidney Allografts
*Purpose: Renal allograft biopsy transcript analysis is typically performed by microarray, which lacks spatial resolution. We initiated a systematic program using the NanoString GeoMx® Digital…2021 American Transplant Congress
Lymphotoxin Beta Receptor Regulates Treg Migration and Suppression by Modulating Draining Lymphatic Structure
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Regulatory T cells (Treg) must migrate from tissues via lymphatic vessels (LV) to the draining lymph node (dLN) to induce tolerance. During migration, Treg…2021 American Transplant Congress
Versatile Strategy to Enhance Nanomedicine Delivery to Graft Endothelial Cells
*Purpose: Efficient delivery of therapeutics to graft endothelial cells (EC) can potentially render organs more resistant to injury, improving clinical outcomes. Specific targeting of polymeric…2021 American Transplant Congress
Src Kinase Inhibitor Pp1 Blunts Tgf-β1 Dependent Endothelial‐to‐Mesenchymal Transition to Alleviate Allograft Kidney Fibrosis Through Orchestrating β-catenin Signaling
Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
*Purpose: Allograft fibrosis is an important contributor to graft loss in chronic renal allograft injury. Endothelial‐to‐mesenchymal transition (EndMT), dysfunction of endothelial cells, played a vital…2021 American Transplant Congress
Extracellular Vesicles from Patients with Diabetic Nephropathy Induce Endothelial Dysfunction Through Icam-1 and Vcam-1 in an In Vitro Model
*Purpose: Extracellular Vesicles (EVs) are membranous structures produced by cells which contain different cytoplasmic compounds and that have been described as potentially pathogenic elements in…2021 American Transplant Congress
HLA I Antibody-Activated Endothelium Polarized M2-Like Macrophages with Increased Efferocytic and Phagocytic Capacity
*Purpose: The role of intragraft macrophages (Mϕs) during antibody-mediated rejection (AMR) remains unclear. Anti-HLA Abs during AMR drives vascular inflammation as seen by monocyte recruitment…2021 American Transplant Congress
IFNγ, and to a Lesser Extent TNFα, Elicits Protracted Endothelial Cell Expression of Costimulatory Molecules and Antigen Presentation Machinery
Pathology and Laboratory Medicine, UCLA, Los Angeles, CA
*Purpose: Beyond simply “recruiting” leukocytes to sites of injury, local stimulation by the donor vascular compartment may prolong alloimmune responses. Moreover, the dynamics of endothelial…2021 American Transplant Congress
Engineered Human Glomerular Endothelial Cells to Identify Non-hla Antibodies and Decipher Their Pathogenicity After Kidney Transplantation
*Purpose: In kidney transplantation recipients (KTRs), donor-specific antibodies directed against Human Leucocyte Antigens (HLA-DSA) are thought to drive antibody-mediated rejection (AMR) and poor transplant outcome.…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…
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