2018 American Transplant Congress
Enhancement of Intrinsic Apoptosis via Bcl-2 Inhibition Promotes Induction of Robust Mixed Chimerism and Renal Allograft Tolerance without Myelosuppression in Nonhuman Primates
Background: Successful induction of mixed chimerism (MC) and renal allograft tolerance has been achieved in both nonhuman primate (NHP) and man following conditioning that included…2018 American Transplant Congress
Robust Hematopoietic Mixed Chimerism and Donor-Specific Skin Allograft Tolerance after Non-Genotoxic Anti-CD117 Immunotoxin Conditioning and Donor Bone Marrow Allotransplantation
Establishing hematopoietic chimerism enables donor-specific allograft tolerance; however, chimerism protocols typically require either genotoxic conditioning or mega-doses of donor bone marrow cells (BMC), impeding clinical…2018 American Transplant Congress
PD-L1 May Serve as a Biomarker for Chimerism-Induced Tolerance in Kidney Transplant Recipients
1University of Louisville, Louisville, KY; 2Northwestern Memorial Hospital, Chicago, IL.
Durable chimerism is currently the most reliable biomarker of donor specific tolerance. Identifying and validating other predictive biomarkers is therefore a high priority. Since 2009…2018 American Transplant Congress
Non-Myeloablative Conditioning with Low-Dose Total Body Irradiation in Place of Cyclophosphamide Induces Mixed Chimerism and Long-Term Immunosuppression Free Allograft Survival without Acute Kidney Injury in HLA Mismatched Kidney Transplantation
We have achieved successful induction of long-term immunosuppression (IS) free renal allograft survival in HLA mismatched kidney transplantation using cyclophosphamide (CP) based conditioning and combined…2017 American Transplant Congress
Induction of Mixed Chimerism to Prolong Liver Allograft Survival in Cynomolgus Monkeys.
CCTI, Columbia University, New York, NY
Purpose: Spontaneous liver tolerance occurs in highly selected patients with stable liver function. There is an unmet need for a safe and reliable regimen allowing…2017 American Transplant Congress
Dual Costimulatory Blockades Failed to Achieve Transplant Tolerance Despite Induction of Mixed Chimerism in NHPs.
Background: Our previous studies showed that substantial deletion of CD8+ memory T cells (TMEM) was necessary to induce mixed chimerism (MC) and allograft tolerance when…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)…2017 American Transplant Congress
Ex vivo Expanded Regulatory T cells Combined with Short-Term Costimulation Blockade Prevent Rejection of Vascularized Composite Allografts.
Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
[Background] Reconstructive transplantation represents a valid therapeutic option after devastating tissue loss. Routine clinical application, however, is hampered by the toxicity of long-term maintenance immunosuppression.…2017 American Transplant Congress
CTLA4-Ig, Vascularized Bone Marrow and Donor Bone Marrow Cells Successfully Negate the Development of Acute Skin Rejection of Vascularized Composite Allografts in MHC Class I Mismatched Recipients.
Massachusetts General Hospital, Boston
PURPOSE: Previously we have shown that MHC class I-mismatched recipient miniature swine (n=3) experienced rejection (from POD42 onwards) of the epidermal component of fasciocutaneous vascularized…2017 American Transplant Congress
The Intragraft Vascularized Bone Marrow Component and Recipient T Regulatory Cells Facilitate Tolerance Induction After Post Transplant High Dose Cyclophosphamide Treatment in VCA.
Johns Hopkins University School of Medicine, Baltimore, MD
Background: VCA is a viable treatment option for devastating tissue defects. However, the life-long need for immunosuppression curtails the wider use of VCA. Unique VCA-features…
American Transplant Congress abstracts