2021 American Transplant Congress
Environmental Factors That Shape T-cell Alloimmunity: Role of the Microbiome
*Purpose: Unlike other types of immunity, T-cell alloimmune responses to mismatched MHC proteins do not need priming by a previous exposure. While genetic differences between…2021 American Transplant Congress
Tip60 Inhibitors Enhance Regulatory T Cells (Treg) Induction by Promoting Acetylation of Foxp3
*Purpose: TIP60, a histone/protein acetyltransferase essential for multiple functions in the cell, is involved in Foxp3 acetylation in Treg. Acetylation protects Foxp3 from degradation, and…2021 American Transplant Congress
Effects of IL-18 on Key Post-Translational Modifications of Human Foxp3 and Innate Immunity
1CHOP & University of Pennsylvania, Philadelphia, PA, 2University of Pennsylvania, Philadelphia, PA
*Purpose: Most of our ideas about Treg cells are extrapolated from findings in mice, with actual clinical data typically involving flow cytometric enumeration of CD4+FOXP3+…2021 American Transplant Congress
Naïve Rhesus Monkey CD4+CD8loT Cells Comprise High Percentage of Memory T Cells with Strong Effector Function
Department of Surgery, University of Pittsburgh, PITTSBURGH, PA
*Purpose: Human CD4+CD8loT cells have been reported in patients with organ allograft rejection. We evaluated the incidence, phenotype, and function of CD4+CD8loT cells in nonhuman…2021 American Transplant Congress
Hypoxia Inducible Factor 1á (HIF-1á) Regulates Carcinoembryonic Antigen-related Cell Adhesion Molecule-1 (CEACAM1) Splice Isoforms to Protect Against Ischemic Injury in Mouse and Human Liver Transplantation
The Dumont-UCLA Transplantation Center, Los Angeles, CA
*Purpose: CEACAM1 (CC1) is a transmembrane glycoprotein that undergoes extensive alternative splicing (AS) to generate CC1-S and CC1-L. It is currently unclear which of these…2021 American Transplant Congress
Donor Kidney-Resident Macrophages Promote Allograft Inflammation and CD8 T Cell Response Post-Transplantation
*Purpose: Kidney-resident macrophages play important roles in maintaining normal kidney function and promoting prompt repair following kidney injuries. Nevertheless, their fate and role in kidney…2021 American Transplant Congress
Quantifying Hidden Sensitization: HLA-reactive Memory B Cells in the Spleens of Sensitized Women
*Purpose: Measurement of circulating anti-HLA antibody (anti-HLA-Ab) in transplant candidates and recipients is required for successful organ transplantation. However, serum Ab measurement alone likely underestimates…2021 American Transplant Congress
Mhealth Family Self-Management Intervention for Families of Transplanted Children
*Purpose: Nearly 2,000 children undergo solid organ transplant in the US annually. In our previous research with transplant families, parents reported difficulty coping with the…2021 American Transplant Congress
K562 Cells Expressing HLA-A2 Stimulate Alloreactive CD8+ T Cells
Emory Transplant Center, Emory University, Atlanta, GA
*Purpose: T cell-mediated rejection is a significant factor that leads to graft damage and loss in transplant recipients. Due to the complexity of the TCR:pMHC…2021 American Transplant Congress
Single Cell RNAq-seq Analysis of Paired Peripheral and Intragraft T Cells Reveals Biopsy Specific Fc Receptor Gene Expression in Rejection Only
Washington University School of Medicine, St Louis, MO
*Purpose: Antibody mediated rejection (AMR) remains one of the major causes of allograft failure and our understanding of this disease process is poor. Transcriptomics studies…
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