2022 American Transplant Congress
Gm2a: A Novel Regulatory Pathway Controlling CD8+ T Cell Alloimmunity
1Department of Surgery, Emory University, Atlanta, GA, 2Mount Sinai School of Medicine, New York, NY
*Purpose: Transplant recipients experience lifelong immunosuppression, yet studies have shown that a subset of patients may be able to retain stable graft function even with…2022 American Transplant Congress
Regulatory T Cells Suppress Memory IL-17a Production in Highly Sensitised Patients with End-Stage Renal Disease
*Purpose: Highly sensitised patients exhibit poorer long-term outcomes following renal transplantation compared to those non sensitised individuals. IL17-A has been associated with acute rejection. Presence…2022 American Transplant Congress
IL-15 Signaling is Required for the Maintenance of Tissue Resident Memory T Cells in Chronic Allograft Rejection
1Starzl Transplantation Institute, Pittsburgh, PA, 2JN Biosciences, Mountain View, CA
*Purpose: Currently, no immunotherapies have been clinically proven to prevent or treat chronic rejection. IL-15 is known to support memory T cell homeostasis. However, it…2022 American Transplant Congress
The Impact of Yttium-90 Radioembolization on T Cell Phenotypes in Bridged to Transplant Hepatocellular Carcinoma Patients
Ochsner Health System, New Orleans, LA
*Purpose: Response to locoregional therapy (LRT) in hepatocellular carcinoma (HCC) impacts both progression-free survival (PFS) and bridge to transplant success. Yttrium-90 (Y90) is an effective…2022 American Transplant Congress
Neuropilin-2 is a Novel Checkpoint Inhibitor That is Required for Long-Term Allograft Survival
Boston Children's Hospital, Boston, MA
*Purpose: We have previously reported that Neuropilin (NRP) 2-associated signaling events modulate PI3K/mTOR/Akt activity in several human cell lines. While intrinsic NRP1 activity has been…2022 American Transplant Congress
Batf3 and IRF4 in Control of iTreg Differentiation, Stability, and Survival
Houston Methodist Research Institute, Houston, TX
*Purpose: The use of in vitro-differentiated induced Tregs (iTregs) in transplantation and various diseases is a promising therapeutic that is limited by challenges to iTreg…2022 American Transplant Congress
Evolution of Cellular and Humoral Immunity During and After a Three Doses-Course of mRNA-1273 COVID-19 Vaccine in Kidney Transplant Recipients
*Purpose: Seroconversion after a 2 doses of mRNA COVID-19 vaccine in kidney transplant recipients (KTR) ranges between 30 and 50% in different series. We previously…2022 American Transplant Congress
Identification of Highly-Effective Donor-Reactive CD4+CD8αlo T Cells in CTLA4Ig-Treated Renal Allograft Recipient Monkeys
*Purpose: Potent CD4+CD8αlo effector T cells have been reported in transplant (tx) patients. . We evaluated the incidence and function of CD4+CD8αloT cells in renal…2022 American Transplant Congress
Intrinsic DEPTOR Activity Modulates Treg Subset Differentiation
*Purpose: We have previously reported that DEPTOR activity within CD4+Foxp3+ Tregs increases immunomodulation following transplantation. DEPTOR functions by both stabilization of Foxp3 expression through epigenetic…2022 American Transplant Congress
Bystander Suppression: Enhancing the Power of Ex Vivo Expanded Antigen Specific Regulatory Cell Lines
*Purpose: The potential of T regulatory cell (Treg) based therapies in transplantation has been demonstrated in various preclinical models. Multiple clinical trials are currently undergoing…
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