2018 American Transplant Congress
Tomotherapy and Donor Hematopoietic Cells for Tolerance to Kidney Transplants in Rhesus Macaques
The goal of this project was to develop a tolerance induction protocol for MHC 1-haplotype mismatched kidney transplants (txs) in a rhesus macaque model. The…2018 American Transplant Congress
Immunomodulation of Alloantibody Responses
Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA.
We have shown that i.v. exposure to MHC-mismatched donor PBMC using a novel, mild conditioning protocol results in B-cell tolerance with transient T-cell unresponsiveness. Here…2018 American Transplant Congress
Predicting Outcomes of Rat Vascularized Composite Allotransplants through Quantitative Measurement of Chimerism with PCR-Amplified Short Tandem Repeat
Background: Chimerism, defined as coexistence of donor and recipient cells, has been associated with induction and maintenance of tolerance to allotransplants. Although most studies have…2018 American Transplant Congress
CD8-Expressing Transitional B Cells Dominate B Cell Reconstitution in Transplanted Monkeys Receiving Mixed Chimerism Conditioning
Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA.
IntroductionTolerance of heart or lung allografts have been achieved for the first time in nonhuman primates (NHPs) using a mixed chimerism conditioning regimen. However, the…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…2017 American Transplant Congress
Induction of Tolerance to Renal Allografts in Non Human Primates by Concomitant Donor-Matched Vascularized Osteomyocutaneous Allotransplantation.
Introduction: We hypothesized that hematopoietic stem cell (HSC) niches in bone marrow of vascularized osteomyocutaneous allografts (VOMA) will facilitate mixed chimerism (MC) and tolerance to…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…
American Transplant Congress abstracts