2016 American Transplant Congress
Belatacept Immunotherapy Is Not Augmented by Blockade of Activated LFA-1 in a Nonhuman Primate Renal Transplant Model.
1Department of Surgery, Duke University Medical Center, Durham, NC; 2Emory University, Atlanta, GA.
Purpose: Belatacept specifically targets de novo alloimmune responses without off target side effects. However, resistant alloreactive memory T cells have complicated its use. LFA-1 therapy…2016 American Transplant Congress
Combined CD122 and Costimulation Blockade Prolongs Allograft Survival by Controlling Expansion and Effector Function of Memory CD8 T Cells.
1Emory Transplant Center, Emory University, Atlanta, GA; 2JN Biosciences, Mountain View, CA.
CD8 memory T cells rely on signaling through CD122, the shared IL-2 and IL-15 receptor β-chain. The addition of anti-CD122 to costimulation blockade prolongs graft…2016 American Transplant Congress
Delayed Induction of Mixed Chimerism Permits Kidney-Induced Cardiac Allograft Tolerance to be Applied to Recipients of Cadaveric Organs.
(BACKGROUND)Cardiac tolerance in nonhuman primates (NHPs) has been induced for the first time by kidney co-transplantation in combination with donor bone marrow infusion when the…2016 American Transplant Congress
Non-Human Primate Lung Allograft Survival Is Prolonged by IL-6 Inhibition and ATG Treatment Possibly Through Expansion of Peripheral Regulatory T Cells.
Surgery, Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA.
BACKGROUND: Inflammatory responses have been linked to the development of acute and chronic rejection after lung transplantation in various models. Previous studies have demonstrated that…2016 American Transplant Congress
Acute Rejection in Non-Human Primates Treated with Belatacept Is Mediated by a Unique CD8 Memory Subset.
Belatacept is a high affinity version of the fusion protein CTLA4-Ig that blocks CD28 mediated T cell costimulation, providing a more targeted/less toxic form of…2016 American Transplant Congress
Regulatory T Cell Infusion Can Enhance Memory T Cell and Alloantibody Responses in Lymphodepleted Nonhuman Primate Heart Allograft Recipients.
Background:The ability of regulatory T cells (Treg) to prolong allograft survival and promote transplant tolerance in lymphodepleted rodents is well-established. Few studies have addressed the…2016 American Transplant Congress
Limited Efficacy of Bortezomib on Desensitization via Rapid Humoral Compensation in a Sensitized Rhesus Model.
1Surgery, Duke University, Durham; 2Surgery, Emory University, Atlanta.
Sensitized patients comprise a significant proportion (30%) of candidates on the waiting list for transplantation. With recent evidence that the presence of donor-specific antibodies (DSA)…2016 American Transplant Congress
Late Renal Xenograft Failure Is Antibody-Mediated: Description of the Longest-Reported Survival in Pig-to-Primate Renal Xenotransplantation.
Introduction. Xenotransplantation has the potential to alleviate the organ supply shortage, yet pig-to-primate renal xenotransplant has met limited success due to natural preformed anti-pig antibody.…2016 American Transplant Congress
Utilizing HLA Single Antigen Flow Beads Assays to Evaluate Anti-MAMU Antibody in Sensitized Nonhuman Primate Model.
[Background] Non-human primate models of sensitization provide great preclinical models to investigate the mechanisms of antibody-mediated rejection or desensitization. Now there a growing interest on…2015 American Transplant Congress
CD28-Directed Therapy Prolongs Survival in a Non-Human Primate Kidney Transplant Model
Introduction. Costimulation blockade using belatacept has the potential to improve long-term renal function and reduce cardiovascular risk by avoiding calcineurin inhibitors, yet higher rates and…
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