2019 American Transplant Congress
Recipient Myeloid Notch1 Disruption Shifts Neutrophil towards Anti-Inflammatory Phenotype and Protects Liver Grafts from Ischemia-Reperfusion Injury
*Purpose: Liver ischemia-reperfusion injury (IRI) represents a major risk factor of early graft dysfunction and predisposes to rejection crises in orthotopic liver transplantation (OLT). We…2019 American Transplant Congress
Donor Derived Cell Free DNA Initiates De-Novo Donor Specific Antibody (DSA) Responses
*Purpose: We hypothesize that subclinical inflammation, resulting in molecular injury, may contribute to sensitization of the recipients’ immune system. Antigenic presentation of donor-derived nucleic acids,…2019 American Transplant Congress
Local IL-33 Regulates Heart Transplant Infiltrating Myeloid Cells Metabolism and Differentiation to Protect against Chronic Rejection
*Purpose: Self-molecules containing damage-associated molecular patterns stimulate the pro-inflammatory response of infiltrating innate immune cells after their release during tissue injury. Yet, if local endogenous…2019 American Transplant Congress
Timing and Donor-Specific Antibodies, but Not C4d Deposition, Determine Leukocyte Infiltration in Renal Allograft Biopsies with the Histological Picture of Antibody-Mediated Rejection
*Purpose: Diagnosis of antibody-mediated rejection following kidney transplantation can be challenging, given the limited specificity of individual histological parameters and time-dependent occurrence of histological confounders.…2019 American Transplant Congress
Comparison of Isolated Transplant Glomerulopathy with Chronic Antibody-Mediated Rejection in Regards to Endothelial-to-Mesenchymal Transition and Graft Survival
*Purpose: Transplant glomerulopathy (TG) has been proposed to be a component of chronic antibody-mediated rejection (CAMR). However, a substantial number of patients with TG do…2019 American Transplant Congress
Increase in Proinflammatory CD14++CD16+ Monocytes in Samples from Aspiration Cytology Compared with Peripheral Blood in Kidney Transplant Patients with Borderline Rejection
*Purpose: Monocytes comprise a heterogeneous population divided according to the membrane expression level of their molecules. One of these populations is the CD14++CD16+, which presents…2019 American Transplant Congress
Matrix Metalloproteinase-9 and Neutrophil Extracellular Traps in Human and Mouse Liver Ischemia and Reperfusion Injury
Dumont-UCLA Transplant Center, Los Angeles, CA
*Purpose: Neutrophils are key mediators of ischemia/reperfusion injury (IRI) in orthotopic liver transplantation (OLT). Once activated, they release nuclear DNA web-like structures called neutrophil extracellular…2019 American Transplant Congress
Approach to Leukopenia in Older Kidney Transplant Recipients
Dept of Medicine, Medical University of South Carolina, Charleston, SC
*Purpose: Older kidney transplant recipients face challenges of post-transplant complications related to frailty and comorbidity burden. They are particularly vulnerable to side effects of immunosuppression…2019 American Transplant Congress
Myeloid Derived Suppressor Cells (MDSC) Home to the Allograft and Can Control T Cell Responses
University of Maryland, Baltimore, MD
*Purpose: Myeloid-derived suppressor cells (MDSC) are a naturally occurring, heterogeneous population of highly immunosuppressive CD11b+GR-1+ myeloid cells that expand in response to inflammatory conditions. Although…2019 American Transplant Congress
Leukopenia in Older Kidney Transplant Recipients is Associated with Decreased Allograft Survival and Increased Patient Survival
Transplant Nephrology, Medical University of South Carolina, Charleston, SC
*Purpose: Older kidney transplant recipients are vulnerable to side effects of immunosuppression (IS) including leukopenia. Providers often reduce MMF dose in response to leukopenia. This…
American Transplant Congress abstracts