2015 American Transplant Congress
Comparison of T Regulatory (Treg) Cell Function Pre- and Post-Lung Transplantation Shows a Major Negative Impact of Immunosuppression on Treg Function
Aim: Clinical lung Tx recipients do not have sustained long-term survival outcomes comparable to that of other recipients of solid organ allografts, despite generally comparable…2015 American Transplant Congress
Donor Specific Expansion of Regulatory T-Cells Was Associated With Allograft Tolerance Induced By Transient Mixed Chimerism in Nonhuman Primates
Transplant Center, Massachusetts General Hospital, Boston, MA.
Background: We have previously reported successful induction of solid organ allograft tolerance in nonhuman primates (NHP) via a mixed chimerism approach. Since these recipients achieved…2015 American Transplant Congress
Effects of Toll Like Receptor (TLR) Signaling on Murine Alloimmunity Are Modulated by Immune Cell Derived Complement
TLR signals prevent CD40L-blockade (MR1) induced murine transplant tolerance but mechanisms are incompletely understood. Based on previous findings that immune cell derived complement activation products…2015 American Transplant Congress
Thymic Transplantation to Determine Mechanisms of Thymic Involution: Insulin-Like Growth Factor 1 Receptor and Forkhead Box Protein N1 in the Thymus Play a Role in Maintaining the Juvenile Thymus
Thymic involution has long been associated with age-related changes of the immune system, although the cause remains unclear. We have extensively studied the role of…2015 American Transplant Congress
Anti-BTLA Antibody (6B2) Induced Prolongation of Fully MHC-Mismatched Murine Cardiac Allograft and Generation of Foxp3+ Regulatory T Cells
Background: The co-inhibitory receptor B and T lymphocyte attenuator (BTLA; CD272) has been implicated in the regulation of autoimmune and may potentially play an important…2015 American Transplant Congress
Activated T Regulatory Cells Escape Death by Increasing Cytoplasmic Serine Protease Inhibitor 6 (SPI6)
Renal/ Transplantation Research Center, Brigham and Women's Hospital, Boston, MA.
Regulatory T cells (Tregs) can employ a granzyme B (GrB)-dependent mechanism to mediate suppression of effector cells by inducing their apoptosis. In this study we…2015 American Transplant Congress
Tolerance to Graft A-Antigens Following ABO-Incompatible Heart Transplantation (HTx) in a Blood Group A-Transgenic Mouse Model
Purpose: ABOi HTx can be performed safely in infants when ABO antibody (Ab) levels are low or absent. Following ABOi HTx, immune tolerance develops to…2015 American Transplant Congress
Impact of Human Mutant TGF-β1/Fc Protein On Memory and Regulatory CD4+T Cells Following Lymphodepletion in Rhesus Monkeys
Background:Tolerance to allografts is essential to avoid chronic immunosuppression and to promote long term graft function. Transforming growth factor- β plays a key role in…2015 American Transplant Congress
Induction of HO-1 High Expression Enhances the Capacity of Immature Dendritic Cells to Modulate Alloimmune Responses
Background: It has been reported that HO-1 is critical for tolerogenic dendritic cells (tolDCs) to suppress T cell responses and tolDCs will lost their immunoregulatory…2015 American Transplant Congress
Identification of Mouse Tolerogenic B Cells Expressing PD-L1/PD-L2 in B-1a Subset
Donor lymphocyte infusion (DLI) has been shown to induce donor-specific hyporesponsiveness or even immune-tolerance among alloreactive T cells in different organ transplantation models. However, the…
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