2018 American Transplant Congress
The Mark of Zorro: IL35-Coated Exosomes Cross-Dress and Exhaust Recipient T & B Cells during Transplant Tolerance
The folk-hero "Zorro" left his mark on by a sword-slashed "Z". In transplant recipients, rare Tregs also leave a mark on their conventional T &…2018 American Transplant Congress
Allogeneic T Follicular and T Conventional Responses Assessed by Proliferation, Cytokine Production, and TCR Clonality
1Thomas E. Starzl Transplantation Institute, Pittsburgh; 2Adaptive Biotechnologies, Seattle.
Background: Human CD4+ T cell allo-immunity plays pivotal roles during cellular and humoral allograft rejection. Our previous analysis showed that allo-reactive precursors were present in…2018 American Transplant Congress
OX40 Costimulation Prevents Induction of Foxp3+ Tregs through Upregulation of Novel Repressors of Foxp3 Gene Expression
Foxp3+ Tregs are essential for the induction of transplant tolerance and OX40 costimulation is known to break transplant tolerance. The exact mechanism of OX40 in…2018 American Transplant Congress
Assessment of Immune Cell Profiles in HLA-Sensitized (HS) & Non-HS Patients (Pts) with End Stage Renal Disease (ESRD)
Background: Chronic inflammation is often seen in pts w/ ESRD. HLA-sensitization may create or be driven by the cytokines responsible for chronic inflammation. Here we…2018 American Transplant Congress
TLR2 with TCR Signaling Mobilizes Treg Lymphatic Migration
Background: Regulatory T cells (Treg) express high levels of lymphotoxin (LT) and bind the LT receptor (LTβR) on lymphatic endothelial cells (LEC). This receptor-ligand interaction…2017 American Transplant Congress
Immunosuppressive Ability of NFkB Inhibitor: Withaferin A.
BackgroundThe advent of steroid-free protocol by the Edmonton group encouraged islet transplant as a therapy for Type-1 Diabetes. However, long-term dysfunction in islet transplantation is…2017 American Transplant Congress
Antiretroviral Therapy Modification of HIV+ Patients Listed for Kidney Transplantation.
Introduction:HIV+ individuals can receive kidney transplant (KT) safely and effectively but face additional challenges from potential drug interactions between antiretroviral therapy (ART) and immunosuppression(IS). Little…2017 American Transplant Congress
NK Cells Respond to CMV Lysate by Inducing IFNγ and CD107a Surface Expression in an Antibody-Dependent Manner: This Represents a Cytokine Flow Cytometry (CFC) Assay That Could Assess Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) as a Marker of CMV Immunity in Transplant Recipients.
Background: Viral infections represent significant morbidity factors for transplant recipients. Tools to assess the efficacy of viral-specific responses are lacking. ADCC is the major antibody-mediated…2017 American Transplant Congress
Exosomes Containing IL35 Are Secreted by Donor-Specific Regulatory T Cells and Cause Linked-Suppression.
Introduction: We previously reported that donor specific splenocytes transfusion (DST) plus anti-CD40L costimulatory blockade treatment causes allo-specific regulation approximately 5 weeks after the tolerization. The…2017 American Transplant Congress
Evolution of CCR4highCD4+ Subpopulations in Renal Graft Blood After Steroid Withdrawal: A Prospective, Randomized, Controlled Study in Parallel Groups. Preliminary Results.
Introduction:Steroids are a mainstay of immunosuppression after kidney transplant (KT). The infiltration into the graft of active T cells following KT depends on the expression…
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