2022 American Transplant Congress
Circulating Donor-Derived Cell-Free DNA: A Novel Non-Invasive Biomarker for Immune Surveillance in Vascularized Composite Allotransplantation
*Purpose: The purpose of this study is to evaluate whether circulating donor-derived cell-free DNA (dd-cfDNA) could be used as a noninvasive biomarker to detect rejection…2021 American Transplant Congress
Harnessing Innate Lymphoid Cells to Prevent Graft-versus Host Disease
*Purpose: Determine whether human innate lymphoid cells (ILCs) can be isolated, expanded and used in cell-based therapies to prevent Graft-versus Host Disease (GvHD) .*Methods: ILC2s…2021 American Transplant Congress
The Absence of T Follicular Regulatory Cells Prolongs Germinal Center Reactivity in Transplantation
*Purpose: Deleterious alloantibodies result from T follicular helper (Tfh) cell-driven germinal center (GC) reactivity. T follicular regulatory (Tfr) cells are a subset of regulatory T…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
Laminins Differentially Regulate Tolerogenic T Cell Migration and Homing to Lymph Nodes
1Surgery, UMB, Baltimore, MD, 2CVID, UMB, Baltimore, MD, 3Harvard University, Boston, MA
*Purpose: Laminin α5 (Lama5) and α4 (Lama4), which are produced by lymph node (LN) stromal cells, influence CD4 T cell migration and stimulation. We hypothesized…2021 American Transplant Congress
Pre-transplant Prognostic Nutritional Index Predicts Short-term Outcomes After Liver Transplantation
Transplant Institute, Henry Ford Hospital, Detroit, MI
*Purpose: To understand the importance of pre-transplant nutritional status in optimizing liver transplant outcomes.*Methods: The prognostic nutritional index (PNI) is a serum marker of nutrition…2020 American Transplant Congress
Absolute Lymphocyte Count: Is There a “Safety Corridor?”
*Purpose: Iatrogenic suppression of T cells is intended to prevent rejection after solid organ transplantation (SOT). This is complicated by opportunistic infections, most notably cytomegalovirus…2020 American Transplant Congress
A Single-Cell Transcriptome Atlas of 15 Adult Human Organs
*Purpose: The transcriptome diversity of cell types within and across tissues is of great importance for biological function of human beings. Here we conducted a…2020 American Transplant Congress
DEPTOR Expression within CD4+Foxp3+ T Regulatory Cells is Crucial for B Cell Activation Responses and Immunoregulation
1Boston Children's Hospital, Boston, MA, 2Lavel University, Quebec, QC, Canada
*Purpose: We have previously reported that the intracellular protein DEPTOR stabilizes Foxp3 expression, enhances suppressive Treg function and inhibits Treg dedifferentiation. Overexpression of DEPTOR within…2020 American Transplant Congress
Memory T Cell-Mediated Rejection is Regulated by FcγRIIB Expression on CD8+ T Cells
*Purpose: Donor-reactive memory T cells represent a potent immunologic barrier to long-term graft survival and tolerance induction. To identify novel pathways that regulate memory T…
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