2015 American Transplant Congress
Blocking CD4 T Cell Helper Functions Improves Efficacy of ATG Treatment in Sensitized Transplant Recipients
Immunology, Cleveland Clinic, Cleveland, OH.
Antibody mediated lymphocyte depletion is used in clinical transplantation to improve graft function. While the presence of donor-reactive memory T cells is the primary rationale…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
Galectin-9 Protects Mouse Liver Transplants Against Ischemia-Reperfusion Injury
Dept of Surgery, Dumont-UCLA Liver Transplant Center, Los Angeles, CA.
Background:Although Galecin 9 (Gal-9) negatively regulates Th1-type alloimmunity by binding to T-cell Immunoglobulin Mucin-3 (TIM-3) on activated Th1 cells, its role in liver ischemia-reperfusion injury…2015 American Transplant Congress
Vascularized Bone Marrow Plays a Critical Role in Inducing Tolerance of Osteomyocutaneous Allografts
Background: Vascularized composite allograft (VCA) that includes medullary bone may provide proposed benefits ofvascularized bone marrow transplantation (VBMT), such as a continuous supply of donor…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
VLA-4 Blockade Inhibits Endogenous Memory CD8 T Cell-Mediated Rejection of Cardiac Allografts
Endogenous memory CD8 T cells infiltrate cardiac allografts within 24 hours of reperfusion and are activated to proliferate and produce IFN-γ in response to donor…2015 American Transplant Congress
Bridging Therapy With Belatacept in High MELD Liver Transplant Recipients
Background: Poor outcomes of high-MELD liver transplant recipients are driven by multisystem organ dysfunction. Renal failure post-transplant has been associated with mortality of greater than…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
CD4 T Cell Mediated Help Is Required for Endogenous Memory CD8 T Cell Proliferation in Cardiac Allografts Subjected to Prolonged Cold Ischemic Storage
Endogenous memory CD8 T cells infiltrate MHC-mismatched cardiac allografts and produce IFN-γ in response to donor class І MHC within 24 hrs after graft reperfusion…2015 American Transplant Congress
CD27low NK Cells Prolong Allograft Survival in Mice By Inhibiting CD8+ T Cell Responses Through Controlling Graft-Derived Donor DCs
The underlying mechanisms by which distinct NK cell subsets promote either allograft rejection or survival remain unclear. Here, we tested the hypothesis that distinctively mature…
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