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
Microcirculation Inflammation in Early Surveillance Renal Biopsy in Sensitized Patients Did Not Correlate With Graft Outcome
1Renal Transplant Unit, HC - FMUSP, S Paulo, SP, Brazil; 2Lab de HLA, InCor, S Paulo, SP, Brazil.
Introduction: Microcirculation inflammation (MI) at 3-month renal biopsies and preformed donor-specific antibodies (DSA) are considered predictors of bad outcome in sensitized patients. Earlier biopsies and…2015 American Transplant Congress
Pre-Transplant Levels of TFH cell-Inducing Pro-Inflammatory Cytokines Correlate With DSA Formation After Kidney Transplantation
Donor-specific anti-HLA antibodies (DSA) represent an important biomarker for acute rejection and are a major cause of long-term graft failure after kidney transplantation (KTx). The…2015 American Transplant Congress
Desensitization With Costimulation Blockade and Proteasome Inhibition in a Non-Human Primate Model of Kidney Transplantation
[Background] Sensitization is a growing problem on the kidney waiting list. Alloantibody can significantly deteriorate graft survival. Currently used desensitization strategies are time-consuming, expensive and…2015 American Transplant Congress
In Vitro Evidence That CTLA4Ig Attenuates Recall Alloantibody Responses
Background: CTLA4Ig is an agonist that blocks CD28-B7 costimulation, downregulating T cell immunity, but also appears to negate T cell-dependent B cell activation, thus inhibiting…2015 American Transplant Congress
NK-Cell Subset Distribution, Renal Function and Biopsy Findings in Kidney Transplant Recipients With HLA Donor-Specific Antibodies
Background: Detection of post-transplant donor-specific anti-HLA antibodies(DSA) constitutes a risk factor for kidney transplant (KT) loss. NK-cell antibody-dependent cell mediated cytotoxicity(ADCC) has been proposed to…2015 American Transplant Congress
Endosome-Based Activation of Non-Canonical NF-kB Signaling By Membrane Attack Complexes
Using sera from transplant patients with high-titer panel reactive antibody (PRA), we previously described a model for studying the effects of alloantibody binding and complement…2015 American Transplant Congress
CN Inhibition (But Not mTOR Inhibition) of a Novel CD8+ T Cell Regulatory Mechanism Results in Higher Alloantibody Posttransplant
Department of Surgery, CTC, The Ohio State University Wexner Medical Center, Columbus, OH.
MTOR inhibitors [mTORi; Rapamycin, (Rapa)] and calcineurin inhibitors [CNi; Tacrolimus (Tac)] are immunosuppressive drugs commonly used to suppress the rejection of transplanted organs and tissues.…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
Does the C1q Assay Predict the Result of Lymphocyte Flow Cross-Match (FCxM) in Potential Renal Transplant Recipients With HLA-DSA and AHG-CDC CxM negative?
Background. The presence of pre-transplant HLA donor specific antibodies (DSA) is a recognized risk factor for acute rejection. However, due to the test's (LUMINEX) high…
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