2022 American Transplant Congress
Cell-free Amniotic Fluid Reduces Liver Inflammation And Fibrosis
*Purpose: Effective interventions for hepatic inflammation and fibrosis remain a dire unmet need in transplant medicine. Cell-free amniotic fluid (AF) represents a potential alternative to…2022 American Transplant Congress
Novel Immune Checkpoint Molecule TIGIT Mediates Experimental Kidney Ischemia Reperfusion Injury
Medicine, Johns Hopkins University, Baltimore, MD
*Purpose: T cells play both pathogenic and reparative roles in kidney ischemia reperfusion injury (IRI) but the molecular mechanisms regulating kidney T cell functions are…2022 American Transplant Congress
Internal Validation of a Pre-Transplant Biomarker Panel to Predict Post-Transplant Mortality: The Liver Immune Frailty Index
1Rutgers New Jersey Medical School, Newark, NJ, 2Houston Methodist Hospital, Houston, TX
*Purpose: Infection and sepsis are the greatest contributors to early post-liver transplant (LT) mortality. These often result from ongoing immune dysfunction, or “Immune Frailty”. We…2022 American Transplant Congress
DEPTOR: A Novel Endothelial-Specific Regulator of Cell-Intrinsic Anti-Inflammation Following Transplantation
*Purpose: Recent studies have highlighted a paradigm whereby the maintenance of normal tissue homeostasis and the prevention of chronic inflammation is dependent on the active…2022 American Transplant Congress
Ikaros-SIRT1 Signaling Axis Regulates Macrophage Pyroptosis and Ischemia-Reperfusion Injury (IRI) in Mouse and Human Liver Transplantation
1UCLA Medical Center, Los Angeles, CA, 2NIEHS, Durham, NC
*Purpose: Although Ikaros is a well-established regulator of lymphopoiesis, its role in myeloid cells and organ IRI remains unclear. We recently reported that the SIRT1-mediated…2022 American Transplant Congress
P2X7R Signaling Controls Exosome Release by Macrophages and Donor MHC Cross-Dressing After Skin Transplantation
*Purpose: Exosomes released by transplanted organs play an important role in the host's immune response leading to their rejection. Donor exosomes contribute to alloimmunity by…2022 American Transplant Congress
Bcl6 Regulates NFκB-Controlled Endothelial Inflammation and Apoptosis
Pathology and Laboratory Medicine, UCLA, Los Angeles, CA
*Purpose: Endothelial cells (EC) centrally regulate leukocyte access to peripheral tissue and immune cell activation, and exhibit remarkable tissue-specific diversity. However, the molecular mechanisms underlying…2022 American Transplant Congress
Disulfide HMGB1 Reprograms Macrophages to Induce Alloimmunity via TLR4 and TLR9 Pathways Following Ischemia-Reperfusion Injury in Human Orthotopic Liver Transplantation
*Purpose: Human hepatocellular damage caused by ischemia reperfusion injury (IRI) generates the disulfide form of HMGB1 (diS HMGB1), eliciting myeloid cell activation and proinflammatory cytokine…2022 American Transplant Congress
IL-15 Signaling is Required for the Maintenance of Tissue Resident Memory T Cells in Chronic Allograft Rejection
1Starzl Transplantation Institute, Pittsburgh, PA, 2JN Biosciences, Mountain View, CA
*Purpose: Currently, no immunotherapies have been clinically proven to prevent or treat chronic rejection. IL-15 is known to support memory T cell homeostasis. However, it…2022 American Transplant Congress
Higher Proinflammatory Cytokines Are Associated with Increased Antibody Titer After a Third Dose of SARS-CoV-2 Vaccine in Solid Organ Transplant Recipients
*Purpose: Solid organ transplant recipients (SOTRs) are at increased risk for severe COVID-19 and exhibit lower antibody responses to SARS-CoV-2 vaccines. This study aimed to…
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