2017 American Transplant Congress
Combining Neural Stem Cell Transplantation with Mixed Hematopoietic Chimerism Promotes Restoration of Self-Tolerance in Established Experimental Autoimmune Encephalomyelitis.
Surgery, Massachusetts General Hospital, Boston, MA
Multilineage mixed hematopoietic chimerism induces tolerance to alloantigens in rodents, large animals and kidney-transplanted patients. Here we combined mixed chimerism with neural stem cell (NSC)…2016 American Transplant Congress
Developing a PCR-Based System to Access the Correlation of Local Chimerism and Fate of the Vascularized Composite Allotransplant.
It is established that development of mixed chimerism following allotransplantation is associated with induction of tolerance to allotransplants. Although chimerism in peripheral blood can be…2016 American Transplant Congress
iNKT Cell Activation Under Co-Stimulatory Blockade Establishes Mixed Chimerism Through Thymic Regulatory T Cell Activation.
Background: Invariant natural killer T (iNKT) cells have recently garnered considerable attention for their potential to induce regulatory T cells (Tregs). We previously reported a…2016 American Transplant Congress
Impact of Mixed Xenogeneic Chimerism on Human B Cell Response to Pig Antigens.
Columbia Center for Translational Immunology, Columbia University, New York, NY.
Xenotransplantation is a potential solution to the organ shortage in clinical transplantation. Pigs are regarded as the most suitable donors. Studies in pig-to-nonhuman primates have…2016 American Transplant Congress
The Function of CD8+TCR– Facilitating Cells and Regulatory T Cells Is Impaired in Flt3-Ligand Knockout Mice.
Institute for Cellular Therapeutics, University of Louisville, Louisville, KY.
Graft CD8+TCR- facilitating cells (FC) enhance engraftment of hematopoietic stem cells (HSC) in allogeneic mouse recipients without causing graft-versus-host disease. FC induce antigen-specific CD4+CD25+FoxP3+ regulatory…2016 American Transplant Congress
Contrasting Effects of Tacrolimus and Everolimus on Regulatory T Cell Activation and Mixed Hematopoietic Chimerism Induced by Natural Killer T Cell Stimulation.
Calcineurin (CN)-dependent IL-2 production is crucial for regulatory T cells (Tregs) to demonstrate suppressive activity. The mTOR signal is not required for Treg function because…2016 American Transplant Congress
Delaying the Induction of Mixed Chimerism Until Two Months After NHP Heart and Kidney Cotransplantation Results in Long Term Survival.
Background. We have previously achieved delayed tolerance in cynomologous recipients cotransplanted with heart and kidney allografts by treating recipients with standard triple drug immunosuppression for…2016 American Transplant Congress
Immune Tolerance Monitoring in Renal Allograft Tolerance Induced by Transient Mixed Chimerism in Nonhuman Primates and Humans.
Center for Transplantation Science, Massachusetts General Hospital, Boston, MA.
Background: Successful induction of allograft tolerance in MHC-mismatched kidney transplantation has been achieved after induction of transient chimerism in both nonhuman primates (NHP) and humans.…2016 American Transplant Congress
IL-10 Expression of In Vitro Activated B Cells as A Biomarker for B Cell Tolerance.
Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA.
Background: A significant role for regulatory B cell has been suggested in kidney transplant recipients who achieved operational tolerance while receiving conventional immunosuppression. We studied…2016 American Transplant Congress
Generation of Naïve Donor-Derived Lymphocytes from Graft-Resident Lymphoid Progenitors After Human Intestinal Transplantation.
Columbia University, New York.
Multivisceral transplantation (MVTx) is associated with a lower rate of severe graft rejection than isolated intestinal transplantation (iITx). We recently demonstrated that mixed T cell…
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