2015 American Transplant Congress
Rational Development of Alloantigen Specific Regulatory T Cell Therapy Requires Insight Into Longevity of Alloimmune Pathways
University of Cambridge, Cambridge, United Kingdom.
IntroductionWe have recently demonstrated that indirect-pathway responses against different alloantigens differ in their strength and longevity; specifically, that indirect responses against MHC class I alloantigen…2015 American Transplant Congress
Targeted Rapamycin Nanotherapy Dampens Memory T Cell Function
Memory T cells (Tm) are difficult to control post-transplantation and account for early rejection episodes. Additionally, therapies exerting local immunosuppression by targeting an allograft, while…2015 American Transplant Congress
Expression Patterns of Neuropilin-1 On T Cells and a Potential Role in Transplantation
Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA.
Introduction: Neuropilin-1 (NRP1) is a co-receptor for a variety of ligand families including VEGF, EGF and semaphorins all of which are often produced by malignant…2015 American Transplant Congress
Increased Frequency of Terminally Differentiated and Exhausted CD8+ T Cells Is Associated With Adverse Clinical Outcome After Mechanical Circulatory Support Device Implantation
Clinical outcomes vary after mechanical circulatory support device (MCSD) implantation, with some patients developing multi organ system dysfunction (MOD), sometimes leading to death. We hypothesized…2015 American Transplant Congress
Donor Specific Expansion of Regulatory T-Cells Was Associated With Allograft Tolerance Induced By Transient Mixed Chimerism in Nonhuman Primates
Transplant Center, Massachusetts General Hospital, Boston, MA.
Background: We have previously reported successful induction of solid organ allograft tolerance in nonhuman primates (NHP) via a mixed chimerism approach. Since these recipients achieved…2015 American Transplant Congress
Interleukin-17A Induced Human Mesenchymal Stem Cells Are Superior Modulators of Immunological Function
Interferon-gamma preactivated mesenchymal stem cells (MSC-γ) are highly immunosuppressive but immunogenic in vivo due to their inherent expression of major histocompatibility (MHC) molecules. We modified…2015 American Transplant Congress
The Immunosuppressive Effect of CTLA4Ig Monotherapy Depends On the Presence of Tregs Only at Suboptimally Low Doses
Background: CTLA4Ig/belatacept has been recently approved for immunosuppression after renal transplantation. Concerns persist, however, that a paradoxical dose-response relationship might exist for CTLA4Ig in which…2015 American Transplant Congress
ALDH Expression in Facilitating Cells Plays a Critical Role in Regulatory T Cell Induction and GVHD Prevention
Graft-vs-host disease (GVHD) is a major source of morbidity in hematopoietic stem cell transplantation (HSCT), limiting its application to treat nonmalignant hematopoietic diseases and to…2015 American Transplant Congress
Induction of iNOS Expressed Macrophages from Mouse iPS cells That Contribute to Prolong Same iPS Cells-Derived Graft Survival in Allogeneic Recipients
BACKGROUND: Induced pluripotent stem cells (iPSCs)-technology provides new opportunities in regenerative medicine to generate grafts from donors for transplantation. However, particularly when allogeneic iPSCs are…2015 American Transplant Congress
T Cell Specific Up Regulation of Nrf2 Regulated Antioxidant Response Protects from Kidney Ischemia Reperfusion Injury in Mice
Background: T lymphocytes mediate important pathophysiological roles during ischemia reperfusion injury (IRI). Transcription factor Nrf2 is protective during experimental kidney IRI and thought to be…
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