2015 American Transplant Congress
Liver-Specific Transcription Factor ATF5 Participates in Regulation of IFN-γ/B7-H1 Signaling Pathway in Liver Mesenchymal Cells
Liver transplant tolerance was initially discovered in pigs, rats and mice. A recent paper reviewed ∼400 liver transplant patients worldwide who had undergone weaning of…2015 American Transplant Congress
Sequential Monitoring and Stability of Ex Vivo-Expanded Autologous and Non-Autologous Regulatory T Cells Following Infusion in Non-Human Primates
1University of Pittsburgh, pittsburgh, PA; 2University of Wisconsin, Madison.
Ex vivo-expanded cynomolgus monkey CD4+CD25+CD127- regulatory T cells (Treg) maintained Foxp3 demethylation status at the Treg-Specific Demethylation Region (TSDR), and potently suppressed T cell proliferation…2015 American Transplant Congress
Noncanonical Anergic Alloreactive B Cells in Transplantation Tolerance
Depart of Surgery, University of Chicago, Chicago.
The observation that operationally tolerant patients (TOL) display higher numbers of blood B cells and a B cell gene signature compared to stable kidney allograft…2015 American Transplant Congress
Notch-1 Inhibition Promotes Immune Regulation in Solid Organ Transplantation
Notch receptor signaling plays a key role in T cell activation and differentiation, though limited data exist on its importance in immune regulation. Herein, we…2015 American Transplant Congress
Relative In Vitro Immunoregulatory Effects of Everolimus, Sirolimus, Tacrolimus, Mycophenolic Acid and Drug Combinations
Everolimus (EVL) is a modified form of the mTOR-inhibitor Sirolimus (SRL) and is used clinically in combination with Mycophenolate (MMF) and/or Tacrolimus (TAC). The purpose…2015 American Transplant Congress
Hepatic Stellate Cells Inhibit T Cells Through Active TGFβ1 from a Cell-Surface-Bound Latent TGFβ1/GARP Complex
Nonparenchymal cells appear to be critical to maintain the immunoprivileged status of liver as whole liver allografts are well-tolerated in mice, but allo-hepatocytes are rapidly…2015 American Transplant Congress
Iron Deficiency Impairs Regulatory T Cell Induction
In a recent clinical trial of immunosuppression withdrawal in adult liver transplant recipients, operational tolerance was associated with development of a transient lymphocyte infiltration rich…2015 American Transplant Congress
TGFβ Production By B Cells Is Critical for Transplant Tolerance Induction
Regulatory B cells (Bregs) have been shown to play a critical role in immune homeostasis and in autoimmunity models. We have recently demonstrated that combined…2015 American Transplant Congress
B-Cell Tolerance to Donor Alloantigens
Pre-existing panel-reactive antibodies and development of donor-specific alloantibodies are known to play important roles in graft dysfunction and deterioration. Preventing and/or eliminating alloantibody responses would…2015 American Transplant Congress
Cell Type of the Tolerizing Inoculum Plays a Role in the Formation of of Molecular Chimerism in Murine Neonatal Tolerance
Background: Heart transplantation is a lifesaving measure for many infants with severe congenital heart diseases. The acceptance of cardiac allografts without immunosuppression, or operational tolerance,…
American Transplant Congress abstracts