2015 American Transplant Congress
Characterization of Natural T Effector Memory Cells Specific for Collagen type V, k-α-1-Tubulin and Vimentin
Background: Injury and repair processes are highly controlled, common occurrences of healthy tissue remodeling. During this process, cellular antigens that are not normally exposed to…2015 American Transplant Congress
Indefinite Survival of Fully MHC-Mismatched Murine Cardiac Allografts by Combination of Anti-BTLA mAb (6B2) and Anti-PD-1 mAb (PIM-2)
Background: The co-inhibitory receptor B and T lymphocyte attenuator (BTLA) and Programmed death (PD)-1 had been suggested to have immunomodulatory activity. This study investigated the…2015 American Transplant Congress
Rapid Effector Function of TEMRA CD8 T Cells in Healthy Volunteers and in Immune-Stimulated Patients Requires Sustained Glycolytic Switch
Background. Contradictory observations have been published regarding the functionality of TEMRA CD8 T cells. TEMRA CD8 have been shown to accumulate with age or chronic…2015 American Transplant Congress
Transient Lymphopenia Breaks Costimulatory Blockade-Based Transplant Tolerance and Initiates Allograft Rejection
【Background and Objective】: Lymphopenia is induced by lymphoablative therapies and chronic viral infections. Lymphopenia is observed in some pathological and physiological processes, including chronic viral…2015 American Transplant Congress
Expression Patterns of Neuropilin-1 On T Cells and a Potential Role in Transplantation
Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA.
Introduction: Neuropilin-1 (NRP1) is a co-receptor for a variety of ligand families including VEGF, EGF and semaphorins all of which are often produced by malignant…2015 American Transplant Congress
Activation of Th17 and Chronic Renal Allograft Rejection in Nonhuman Primates
Transplant Center, Massachusetts General Hospital, Boston, MA.
Background: We have previously reported successful induction of renal allograft tolerance in nonhuman primates (NHP) via a mixed chimerism approach. Although donor specific Th1 and…2015 American Transplant Congress
2B4 Expression on Human CD4+ Memory T Cells Is Associated With Functional Impairment
Emory Transplant Center, Emory University, Atlata, GA.
The SLAM family receptor 2B4 is expressed primarily on NK cells and memory CD8+ T cells. In prior studies, we found that 2B4 was upregulated…2015 American Transplant Congress
Overexpression of 2B4 Inhibits the Expansion and Function of Donor-Reactive CD8+ T Cells in Selective Lymphoid Compartments
Department of Surgery, Emory University, Atlanta, GA.
2B4 is an immunoglobulin superfamily member expressed constitutively on NK cells, and inducibly on some CD8+ T cells. We recently showed in a murine skin…2015 American Transplant Congress
The Immunosuppressive Effect of CTLA4Ig Monotherapy Depends On the Presence of Tregs Only at Suboptimally Low Doses
Background: CTLA4Ig/belatacept has been recently approved for immunosuppression after renal transplantation. Concerns persist, however, that a paradoxical dose-response relationship might exist for CTLA4Ig in which…2015 American Transplant Congress
Lower Frequency of Regulatory T-Cells After Conversion from CNIs or mTORi to Belatacept in a Prospective Matched Controlled Study in Renal Allograft Recipients
Nephrology, Charité Universitätsmedizin Berlin, Berlin, Germany.
Objective: Regulatory T-cells (Tregs) are considered to play a crucial role in maintaining control of immune response following renal transplantation (Tx). So far, only limited…
American Transplant Congress abstracts