2019 American Transplant Congress
MHC Molecule-Ablated Human Endothelial Cells Form Alloimmune-Evasive Microvessels
*Purpose: “Off the shelf” tissue-engineered organs will require use of allogeneic cell sources. Allogeneic human endothelial cells (ECs), necessary for organ perfusion, can initiate graft…2019 American Transplant Congress
In Vitro Model to Study the Effect of Irradiation Preconditioning on Alloimmune Responses: Development of Potential Predictive Markers
Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA
*Purpose: Pre-conditioning using total body irradiation prior to HSCT is a well-established regimen for patients with hematological malignancy. However, irradiation (IR) elicits not only immunosuppressive…2019 American Transplant Congress
Next Gen ABO Antibody Assessment: Development of a Bead-Based ABO Antibody Detection Assay
*Purpose: Accurate characterization of ABO antibodies (ABO-Ab) is critical to assess their impact in ABO incompatible (ABOi) transplantation. The current ABO-Ab detection method using erythrocyte…2019 American Transplant Congress
Intra-Operative Kinetics of Anti-HLA Antibodies in Simultaneous Liver-Kidney Transplantation
Baylor College of Medicine, Houston, TX
*Purpose: In simultaneous liver-kidney transplantation (SLKT) in highly-sensitized patients, donor specific anti-HLA antibodies (DSA) can be present prior to transplant leading to positive crossmatch, yet…2019 American Transplant Congress
Report of 20 HLAMatchmaker Eplets Present on Denatured Class I HLA Molecules
*Purpose: The purpose of this report is to describe 20 class I HLA eplets, herein called FakEplets, present on denatured HLA molecules.*Methods: The study included…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
High Prevalence of De Novo Donor-Specific Antibodies during Rejection after Liver Transplantation
Liver Transplant Unit, Hospital Clinic Barcelona, Barcelona, Spain
*Purpose: Anti-HLA donor specific antibodies (dnDSA) after liver transplantation (LT) are currently under investigation. Recent studies show an incidence of dnDSA after LT ranging from…2019 American Transplant Congress
Towards Human Leukocyte Antigen Immunogenicity Assessment at the Individual Patient Level
*Purpose: Allorecognition of donor HLA and induction of humoral alloimmunity is a major cause of graft loss after solid-organ transplantation. Current approaches to study molecular…2018 American Transplant Congress
Temporal Variability of IgG Subclasses
Northwestern University, Chicago; Lurie Children's Hospital, Chicago.
The temporal model of IgG subclass switching supports sequential IgG conversion; however, the diversity of previously stimulated B cells is known to shape responses in…2018 American Transplant Congress
Anti-Thymocyte Globulin Directly Binds and Functionally Inhibits Allo-Regulatory Myeloid Derived Suppressor Cells
Surgery and Immunology, University of Maryland, Baltimore, MD.
BACKGROUND: Myeloid-derived suppressor cells (MDSCs) are a heterogeneous group of naturally occurring, immunosuppressive cells that may be exploitable in transplantation.There are only a few incomplete…
American Transplant Congress abstracts