2020 American Transplant Congress
The Role of Antigen Presentation in B Regulatory Cell Function
1Boston Children's Hospital, Boston, MA, 2Massachusetts General Hospital, Boston, MA
*Purpose: B regulatory cells (B regs) represent a subset of B cells with non-canonical regulatory function. The majority of effort has been focused on the…2020 American Transplant Congress
Intra-Lymph Node Injection of Rapamycin-Alloantigen Microparticles Regulates Dendritic Cell Antigen Presentation
1U Maryland, Baltimore, MD, 2U Maryland, College Park, MD
*Purpose: Microparticles (MPs) carrying peptide antigen with immune signals can be directly delivered to lymph nodes (LNs) via intra-LN injections to shape both pro-inflammatory or…2019 American Transplant Congress
Role of MHC Class II in B Cell and Regulatory T Cell Development
Surgery, Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA
*Purpose: Therapies involving CD4 regulatory T cells (Tregs) are promising approaches to mitigate graft rejection and autoimmunity. Understanding of the activation mechanisms that initiate Treg…2019 American Transplant Congress
Tolerogenic Nanoparticles Targeting the Aryl Hydrocarbon Receptor
*Purpose: The aryl hydrocarbon receptor (AHR) has been shown to have a central role in the ability of dendritic cells (DCs) to direct differentiation of…2019 American Transplant Congress
mTORC2 Restricts mTORC1 Metabolic Function in Dendritic Cells to Limit Their Allostimulatory Activity
*Purpose: Mechanistic target of rapamycin complex 2 (TORC2) deficiency in conventional dendritic cells (DC) results in their enhanced pro-inflammatory and T cell allostimulatory activity; however,…2019 American Transplant Congress
Tertiary Lymphoid Organs in Renal Chronic Allograft Rejection
Starzl Transplantation Institute, Pittsburgh, PA
*Purpose: Chronic allograft rejection remains a major obstacle to long-term allograft survival. Tertiary lymphoid organs (TLOs) are ectopic lymphoid structures that arise in non-lymphoid tissues…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…2019 American Transplant Congress
Redox State of HMGB1 Drives Ischemia-Reperfusion Injury in Human Liver Transplantation
1Pathology & Laboratory Medicine, UCLA, Los Angeles, CA, 2Surgery, UCLA, Los Angeles, CA
*Purpose: Ischemia-reperfusion injury (IRI) is a major risk factor of acute and chronic graft rejection in orthotopic liver transplantation (OLT) involving a complex interplay between…2019 American Transplant Congress
The Important Roles of Dendritic Cells in Transplantation
*Purpose: The interplay between dendritic cells (DCs) and T cells plays a central role in the process of allograft rejection. Upon antigen exposure, positive costimulatory…2019 American Transplant Congress
MHC Cross-Dressing in Mixed Hematopoietic Chimerism
*Purpose: Achieving specific long-term allograft survival without ongoing immunosuppression is one of the main objectives in transplantation. Mixed hematopoietic chimerism is a strategy that has…
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