2015 American Transplant Congress
Adoptive Immunotherapy With Liver Allograft-Derived NK Cells Improves Recurrence-Free Survival After Living-Donor Liver Transplantation in Patients With Hepatocellular Carcinoma
Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan.
Introduction: Previous studies revealed that the recurrence rate of hepatocellular carcinoma (HCC) was still 10–20%, even among liver transplantation (LT) recipients meeting the Milan criteria…2015 American Transplant Congress
Myeloid Cells as a Key Mediator for Impairment of Transplant Tolerance by CMV Infection
Cytomegalovirus (CMV) is a ubiquitous virus that presents a significant risk for reactivation or de novo infection in transplant recipients. Clinical transplant tolerance has recently…2015 American Transplant Congress
Vaccine-Induced 'Incognito' CD8+ T Cell Memory Can Disrupt Transplantation Tolerance
Transplant recipients harbor immunity to vaccines and pathogens (e.g. CMV, EBV). Pre-existing immunity can have significant antigen-specific ramifications, usually attributed to heterologous immunity, as pathogen-reactive…2015 American Transplant Congress
Virus Induced CD28 Down-Regulation as a Potential Driver of Costimulation Blockade Resistant Rejection
1Surgery, Emory University, Atlanta, GA; 2Surgery, Duke University, Durham, NC.
Belatacept, a B7-specific fusion protein, blocks CD28-B7 costimulation and prevents kidney allograft rejection. However, it is ineffective in a sizable minority of patients. Although T…2015 American Transplant Congress
Enhanced Requirement for TNF Signaling on Low Affinity Memory CD8+ T Cells During Heterologous Immunity
Heterologous immunity, defined as a process during which microbe-specific T cells cross-react with allogeneic antigen and mediate graft rejection, is recognized as a significant barrier…2015 American Transplant Congress
Eomes-Expressing CD8+ T Cells and Th17 Cells Mediate Costimulatory Blockade-Resistant Allograft Rejection in Mice
The etiology of costimulatory blockade-resistant allograft rejection remains unclear. Therefore, the purpose of this study was to evaluate the responsiveness of distinct CD4+ and CD8+…2015 American Transplant Congress
Absence of Allograft TLR4 Receptor Signaling Attenuates Early Inflammation and Promotes Survival of 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
Defining the Role of CD57+CD4 T Cells in Belatacept-Resistant Rejection
1Duke University, Durham, NC; 2Emory University, Atlanta, GA; 3Bristol-Myers Squibb, Princeton, NJ.
Purpose: We have shown that CD57+PD1- CD4 T cells are present in higher numbers in the peripheral blood and allograft biopsies of patients who experienced…2015 American Transplant Congress
T Cell C5a Receptor (C5aR) Signaling Regulates T Follicular Helper Cell (Tfh) Induction
Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, NY.
Tfh cells, in part via IL-6 dependent production of IL-21, are specialized providers of B cell help. Extending previous work in which we showed that…2015 American Transplant Congress
IL-21 Regulates Creation of Tertiary Lymphoid Organs in Chronic Allograft Rejection
BACKGROUND: IL-21 is a cytokine expressed almost exclusively by cells of the adaptive immune system. This makes it an attractive target for reducing chronic allograft…
American Transplant Congress abstracts