2021 American Transplant Congress
Leukopenia in the Renal Transplant Population
1Emory University, Atlanta, GA, 2Surgery, Emory University, Atlanta, GA
*Purpose: Leukopenia is a common complication for transplant patients on immunosuppression, but etiologies, timing, and outcomes are only superficially understood.*Methods: All patients undergoing kidney transplant…2020 American Transplant Congress
Early Impact of Interleukin-6 Blockade on the Distribution of Peripheral Blood Immune Cell Subpopulations – 3-Month Results of a Phase 2 Trial Evaluating Clazakizumab in Late Antibody-Mediated Rejection
*Purpose: Interleukin-6 (IL-6) is considered to play a critical role within the multifacted pathophysiological process of antibody-mediated rejection (ABMR), including modulation of regulatory T cells…2020 American Transplant Congress
Immune Cell Subset Profiles in HLA-Sensitized Kidney Transplant Patients (HS KTx Pts) Desensitized with Clazakizumab (CLZ, Humanized Anti-IL-6 Monoclonal Antibody) Followed by Transplantation (Tx)
*Purpose: IL-6, B cell growth factor, increases follicular T helper cell (Tfh) activity, promoting plasmablast (PB) and plasma cell (PC) differentiation, and antibody production. A…2020 American Transplant Congress
Pre- And Post-Transplant (Tx) Clazakizumab (CLZ, Humanized Anti-IL-6 Monoclonal Antibody) Treatment Increased Regulatory T Cell (Treg) Percentage in CD4+ T Cells in HLA-Sensitized Kidney Transplant Patients (HS KTx Pts)
*Purpose: IL-6 is a B cell growth factor and pro-inflammatory cytokine. Inhibition of IL-6 signaling modulates B cell activation and inflammatory process possibly through Treg…2020 American Transplant Congress
Mechanisms by Which Donor Bone-Marrow CXCR4+ Foxp3+ Tregs Promote Long-Term Survival of Murine Limb Allografts
*Purpose: Vascularized composite allotransplantation (VCA) allows tissue replacement after devastating loss but is currently limited in application and may be more widely performed if maintenance…2020 American Transplant Congress
Filgrastim Utilization Evaluation in Solid Organ Transplant Recipients
The Ohio State University Wexner Medical Center, Columbus, OH
*Purpose: Neutropenia occurs in up to 40% of kidney and liver transplant (txp) recipients and has been associated with higher mortality rates in liver txp.…2020 American Transplant Congress
Recipient Myeloid Cell Myeloperoxidase is Required for Nk Cell Activation During Antibody-Mediated Allograft Rejection
Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, OH
*Purpose: Dysregulated donor-specific antibody (DSA) responses are induced in B6.CCR5-/- mice transplanted with complete MHC mismatched A/J kidney allografts and are required for rejection of…2020 American Transplant Congress
Neuropilin 2 is a Novel Coinhibitory Molecule That Suppresses Alloimmune Responses Following Transplantation
Boston Children's Hospital, Boston, MA
*Purpose: We have previously reported that signaling via the transmembrane receptor neuropilin 2 (NRP2) regulates PI3K/mTOR/Akt activity in several human cell lines. Furthermore, it is…2020 American Transplant Congress
Outcomes in Liver Transplantation with Use of Granulocyte-Colony Stimulating Factor
The Ohio State Wexner Medical Center, Columbus, OH
*Purpose: Questions remain if treatment with a granulocyte-colony stimulating factor (G-CSF) impacts clinical outcomes after liver transplant. The purpose of this study was to compare…2020 American Transplant Congress
IL-33 is a Potent Injury Signal That Programs Graft Macrophage Metabolism Toward That Required for Reparative and Regulatory Functions
*Purpose: Sequestered self-molecules, such as HMGB1 or haptoglobin, are appreciated to stimulate the pro-inflammatory response of infiltrating innate immune cells by targeting TLR4 after their…
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