2017 American Transplant Congress
Immunoregulatory Roles of CD137 Signaling in Graft-versus-Host Disease.
CD137 functions mainly as a costimulatory molecule for T cell activation. However, its functions have been found in a variety of other immune and nonimmune…2017 American Transplant Congress
Biological Interplay Between Circulating HLA-sp Alloreactive Memory B-Cells and Long-Lived Plasma Cells in Kidney Transplant Patients Undergoing Chronic ABMR.
Alloreactive humoral responses are one of the main causes of immune-mediated allograft injury in kidney transplantation. Different biological compartments are involved in the generation and…2017 American Transplant Congress
TIM-4 Identifies Pro-Inflammatory B Effector Cells That Are Potent Drivers of Alloimmunity and Allograft Rejection Through Expression of Both IFN-γ and IL-17.
Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh
B cells can either augment or inhibit immune responses due to the presence both regulatory (Bregs) and effector (Beff) B cells expressing anti- or pro-…2017 American Transplant Congress
Suppression of T Cell Proliferation by CpG-Activated B Cells Depends on Granzyme-B and Cell-Cell Contact, but Not on IL-10.
Background: Our previous studies document the potent capacity of regulatory B cells (Bregs) to mitigate allograft immunity. However, we have been largely unsuccessful in demonstrating…2017 American Transplant Congress
Senescence and Uremia Effects in Circulating T Cells Diverge in TREG Population and Cause T Cell Shift to a Memory Profile.
Elderly kidney transplant recipients(EKtx) have higher malignancies and infections rates, but lower acute rejection incidence. Senescence seems to result in shift to memory profile and…2017 American Transplant Congress
Characterization of a B Lymphocyte Signature Predictive of Chronic Lung Allograft Dysfunction.
The occurrence of chronic lung allograft dysfunction (CLAD) is the main complication after lung transplantation (LT) and remains the most common cause of graft failure…2017 American Transplant Congress
ABO-Incompatibility Using Ritiuximab Does Not Increase Hepatocellular Carcinoma Recurrence After Liver Transplantation.
Background and aims: ABO-incompatible (ABO-I) living donor liver transplantation (LDLT) has a high success rate. However, a difference in hepatocellular carcinoma (HCC) recurrence rates has…2017 American Transplant Congress
CD4 T Cells and Co-Engagement with Foreign Protein Are Required in Antibody Response to Non-Self Blood Group A-Antigen.
Background: ABO-incompatible heart transplantation (ABOi HTx) is safe during infancy and allows increased donor access. B-cell tolerance develops to donor A/B-antigen(s) (Ag) after ABOi HTx…2017 American Transplant Congress
CXCL13 as a New Systemic Biomarker for B-Cell Involvement in Acute Kidney Allograft Rejection.
The majority of kidney allograft rejections are T cell mediated (TCMR). However, it has been shown that in the presence of B-cell clusters the course…2017 American Transplant Congress
B Cell-Derived Cytokines Rather Than T/B Cognate Interactions Mediate CD8 T Cell Reconstitution Following Lymphoablation.
Immunology, Cleveland Clinic, Cleveland, OH
Antibody-mediated lymphoablation is a commonly used induction therapy in sensitized transplant recipients. Using murine anti-thymocyte globulin (mATG) in a model of BALB/c (H-2d) to B6…
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