2022 American Transplant Congress
Donor-Specific Hyporesponsiveness Following Kidney Transplantation is Explained by Progressive Loss of Donor-Reactive Polyfunctional Cd4+ Effector Memory T Cells
Internal Medicine, Erasmus MC, Rotterdam, Netherlands
*Purpose: After kidney transplantation, donor-specific hyporesponsiveness (DSH) develops which is defined as a lowered response of alloreactive T cells to donor antigen while retaining response…2018 American Transplant Congress
Characterization of Mesenchymal Stem Cell Phenotype and Its Immunomodulatory Effects during Allo-Specific T Cell Immune-Responses
Department of Surgery, Duke University Medical Center, Durham, NC.
Mesenchymal stem cells (MSCs) have been suggested play an important role in modulating cell-mediated immunity. In the setting of transplantation, allogeneic MSCs could mediate suppressive…2017 American Transplant Congress
Tolerant Pediatric Liver Transplant (LT) Recipients (TOL) from WISP-R (NCT00320606) Split into Two Phenotypically Distinct Groups by PD1 Expression on CD4+ T Cells at Baseline, Prior to Immunosuppression Withdrawal (ISW).
Background: Combinations of cell surface markers such as PD1, CD57, and/or KLRG1 identify T cells that may fail to respond to cognate antigen challenge –…2016 American Transplant Congress
Zero and One Mismathing for HLA DR10,14,16 Produces Increased Kidney Graft Survival.
Aims: HLA DR matching has shown measureable significant effects in kidney graft survival. Part and parcel of this association is the HLA Class II allele…2015 American Transplant Congress
Liver-Specific Transcription Factor ATF5 Participates in Regulation of IFN-γ/B7-H1 Signaling Pathway in Liver Mesenchymal Cells
Liver transplant tolerance was initially discovered in pigs, rats and mice. A recent paper reviewed ∼400 liver transplant patients worldwide who had undergone weaning of…2015 American Transplant Congress
Hepatic Stellate Cells Inhibit T Cells Through Active TGFβ1 from a Cell-Surface-Bound Latent TGFβ1/GARP Complex
Nonparenchymal cells appear to be critical to maintain the immunoprivileged status of liver as whole liver allografts are well-tolerated in mice, but allo-hepatocytes are rapidly…2015 American Transplant Congress
Rejection Triggers Liver Transplant Tolerance: Involvement of Mesenchyma-Meidated Immune Control Mechanisms
Successful organ transplantation relies on lifelong immunosuppression, associated with severe side effects. Induction of tolerance is ideal but elusive in clinic. Indeed spontaneous liver transplant…2015 American Transplant Congress
Hepatic Stellate Cells Directly Inhibit B Cells Via PD-L1
Hepatic stellate cells (HSCs) account for one third of the nonparenchymal cells in the liver, which are considered to be critical in maintaining the immunoprivileged…2015 American Transplant Congress
MDSC Derived from iPS Cells Regulate the CD8 T Cell Response In Vivo
Myeloid derived suppressor cells (MDSC) may represent a therapeutic tool for inducing tolerance in transplantation and autoimmune disorders. MDSC propagated from bone marrow (BM) can…2015 American Transplant Congress
Operational Tolerance in Kidney Transplantation: Results of a Europe-Wide Survey
BACKGROUND: Operational Tolerance (opTOL) is deemed to be extremely rare in kidney transplantation. We launched a Europe-wide survey to assess the frequency of opTOL.METHODS: 18…
American Transplant Congress abstracts