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…2017 American Transplant Congress
Pre-Transplant HLA-Specific B Cell Breadth of Reactivity in a Novel Multiplex Bead-Based Assay Predicts Rejection in Kidney Transplant Recipients.
1Northwestern University, Chicago; 2Icahn School of Medicine at Mount Sinai, New York
Introduction: Recipients with broad sensitization to HLA defined by a high percentage of Panel Reactive Antibodies (PRA) are at higher immunologic risk for poor graft…2017 American Transplant Congress
Assessment of Cardiosphere-Derived Cell Exosomes as Possible Modulator of Alloimmunity in a Mouse Model of HLA-A2 Allosensitization.
Purpose: Mounting data indicate that exosomes, a nanosized membrane particle secreted by cells has immune regulatory properties, including anti-inflammation and mediating autocrine, paracrine, and endocrine…2017 American Transplant Congress
Alloimmune Quiescence in Recipients with Long-Term Surviving Kidney Grafts.
Recent studies of tolerant kidney transplant patients have identified increased numbers of circulating B cells expressing an immature/transitional phenotype (IgD+CD27-/IgD+CD27-CD24+CD38+). Similar frequencies of these immature/transitional…2017 American Transplant Congress
Effective Targeting Plasma Cells with Daratumumab (Anti-CD38) and Mozobil (Anti-CXCR4) in a Sensitized Non-Human Primate Model.
1Surgery, Duke Transplant Center, Durham, NC; 2Surgery, Samsung Medical Center, Seoul, Korea
[Introduction] The presence of donor-specific antibodies (DSA) leads to antibody-mediated rejection (AMR) and decreased graft survival. Therefore efforts continue to be made to reduce DSA…2017 American Transplant Congress
IL-21R Antagonist Inhibits Differentiation of B Cells Towards Plasmablasts upon Alloantigen Stimulation.
Background: Antigen-specific antibody responses rely on IL-21+ T follicular helper (Tfh) cells that regulate B cell differentiation. In transplantation, a large proportion of renal allograft…2017 American Transplant Congress
Bortezomib for Late Antibody-Mediated Rejection After Renal Transplantation: A Single Center Experience of 22 Cases.
Despite of tradifional treatments for AMR, such as plasapheresis, ingravenous immunoglobulin, and rituximab, current treatment for antibody-mediated rejection(AMR) after renal transplantation is insufficient. Recently, Bortezomib…2017 American Transplant Congress
Pro Inflammatory Transitional B (TrB) Cells Characterize Renal Allograft Recipients with DSA and T Cell Mediated Rejection (TCMR).
De novo DSA detected post-renal transplantation is associated with adverse outcomes. We have shown that de novo DSA is strongly associated with TCMR. In this…2017 American Transplant Congress
Dual Targeting of Costimulation and Proteasome to Desensitize and Prolong Graft Survival of Sensitized Nonhuman Primates.
[Background] Pre-formed donor-specific anti-HLA antibodies (DSA) from prior transplantation, transfusion, or pregnancy affects a significant portion (35%) of patients awaiting a kidney transplant. Highly sensitized…
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