2016 American Transplant Congress
IL-17-Producing CCR6+CD4+ Th17 Cells Drive Intestinal Allograft Rejection in Humans.
MedStar Georgetown Transplant Institute, Washington DC.
A. Allograft rejection remains a significant source of mortality and morbidity in intestinal transplant (ITx) recipients. However, the underlying mechanisms remain unclear. The purpose of…2016 American Transplant Congress
CTLA4 Negatively Regulates Donor-Reactive CXCR5+PD1+ T Follicular Helper Cell Responses Following Transplantation.
1Emory Transplant Center, Atlanta; 2Bristol-Myers Squibb, Princeton.
Costimulation blockade of the CD28 pathway in the form of CTLA4Ig is known to attenuate T cell dependent antibody responses. T follicular helper (Tfh) cells…2015 American Transplant Congress
Blocking CD40/CD154 Co-Stimulation Prevents Acute Antibody-Mediated Renal Allograft Rejection Induced by Memory CD4 T Cells
Immunology, The Cleveland Clinic, Cleveland, OH.
Immunosuppression-resistant alloreactive memory CD4 T cells induce robust responses against organ transplants. In murine heart allograft recipients donor-reactive memory CD4 T cells provide help for…2015 American Transplant Congress
Mechanisms Underlying Treg Dysfunction in DAIH- Role for PD-L1?
Background: we have previously shown that ex vivo Tregs from patients with DAIH demonstrate differentiation plasticity towards TH17. To understand the mechanisms underlying this we…2015 American Transplant Congress
Leukocyte Associated Immunoglobulin-Like Receptor 1 inhibits Th1 But Enhances Th17 Responses
Background: Leukocyte Associated Immunoglobulin-like Receptor 1 (LAIR1), is a transmembrane receptor expressed by immune cells. It recognizes collagen repeats via its extracellular domain and has…2015 American Transplant Congress
Th17 Mediates Inflammatory Responses After Lung Transplantation
Background: Long-term outcomes after lung transplantation are markedly worse than for other organs. The mechanisms that determine lung transplant rejection are not clear. The role…2015 American Transplant Congress
BAFF Binding to T Cell-Expressed BAFF-R Promotes Follicular Helper T Cell Proliferation and GC B Cell Responses
Recent studies have defined a crucial role for the B cell–activating factor belonging to TNF family (BAFF) in promoting germinal center (GC) responses in mouse…2015 American Transplant Congress
Immunological Characterization of Full Facial Transplant Recipients
Background: Despite the skin being considered the most immunogenic of all human tissues, full facial transplantation (FFT) has become a life transforming procedure with encouraging…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
Human Gingival Tissue-Derived Mesenchymal Stem Cells Reduce Murine Acute GVHD Via Killing of Effector CD8+ Cells Through CD39/Adenosine A1R and A2BR Pathways
Human gingival tissue-derived mesenchymal stem cells (GMSCs) are a convenient source of MSCs that have been shown to treat autoimmune disease. Here we use human…
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