Am J Transplant, Volume 19, Suppl 3 Archives - Page 27 of 214 - ATC Abstracts

2019 American Transplant Congress
MDSCs Prolong Allogeneic Cardiac Graft Survival by Regulating Interferon Type 1 Signaling
S. Cai¹, P. T. Sage¹, T. J. Borges¹, T. Ichimura¹, S. K. Eskandari¹, J. Y. Choi¹, I. Salkuj¹, B. S. AI Dulaijan¹, H. Allos¹, J. Miao², L. V. Riella¹, A. K. Chandraker¹, J. R. Azzi¹
¹Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ²Boston Children's Hospital, Harvard Medical School, Boston, MA
*Purpose: We previously demonstrated that donor-derived regulatory dendritic cells (DCreg), contrary to recipient derived DCreg, promote antigen-specific allograft protection. As myeloid-derived suppressor cells (MDSC) show…
2019 American Transplant Congress
Racial and Ethnic Disparities in Access to Living Donor Kidney Transplantation in the US: Have We Made Any Progress among Pediatric Candidates over the Last Twenty Years?
T. Purnell¹, S. Bae¹, X. Luo¹, A. Chen¹, D. Crews¹, L. Cooper¹, O. N. Bignall II², K. Covarrubias¹, D. Segev¹
¹Johns Hopkins School of Medicine, Baltimore, MD, ²Nationwide Children’s Hospital, Columbus, OH
*Purpose: A recent JAMA study demonstrated worsening disparities in access to living donor kidney transplantation (LDKT) among adults in the US. We examined twenty-year trends…
2019 American Transplant Congress
Alloreactive B Cells in Transplant Tolerant Recipients Cannot Differentiate into Antibody-Secreting Cells but Can Suppress Donor-Specific IgG Production By Naïve B Cells
S. H. Khiew¹, J. Chen¹, D. Jain¹, Q. Wang¹, D. Yin¹, M. Alegre², A. S. Chong¹
¹Department of Surgery, Section of Transplant, University of Chicago, Chicago, IL, ²Department of Medicine, University of Chicago, Chicago, IL
*Purpose: Donor specific transplantation tolerance has long been the goal of clinical transplantation. Clinical observations suggest that donor-specific antibodies (DSA) are a major cause of…
2019 American Transplant Congress
Exosomes Isolated from Human Lung Transplant Recipients Diagnosed with Bronchiolitis obliterans Syndrome are Unique in Their Ability to Induce IL-6 via Rab27A Signaling Pathway
M. Rahman, M. Sharma, S. Angara, M. Smith, R. Bremner, T. Mohanakumar
Norton Thoracic Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ
*Purpose: Rab27, a member of the Rab subfamily of GTPases, has the ability to induce exosome secretion. Exosomes are small membrane vesicles (40-150nm) that regulate…
2019 American Transplant Congress
IgG Glycosylation Causes Podocyte Injury in Transplant Glomerulopathy through Calcium Calmodulin Kinase IV
R. Bhargava, K. Maeda, M. Pavlakis, G. Tsokos
Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
*Purpose: Transplant glomerulopathy(TG) is a major cause of late allograft loss. Increase in urine podocin/creatinine ratio in TG signifies acceleration of podocyte detachment from glomerular…
2019 American Transplant Congress
Kidney Allograft Recipient Absence of Myeloperoxidase Decreases Donor-Specific Antibody Titers and Attenuates Antibody-Mediated Allograft Rejection
S. Miyairi, N. Dvorina, A. Valujuskikh, W. M. Baldwin 3rd, R. L. Fairchild
Immunology, Cleveland Clinic Lerner Institute, Cleveland, OH
*Purpose: The incidence of antibody-mediated kidney graft rejection continues to increase. We previously reported that dysregulated donor-specific antibody (DSA) responses were induced in B6.CCR5-/- mice…
2019 American Transplant Congress
Desensitization Using Costimulatory Blockade and Bortezomib Does Not Prevent DSA Formation and Rejection in Reconstructive Transplantation
F. Messner¹, Y. Guo¹, R. Chen², Y. Kuo², G. Brandacher¹, B. Oh¹
¹Department of Plastic and Reconstructive Surgery, Johns Hopkins UJohns Hopkins University School of Medicine, Baltimore, MD, ²Division of Plastic Surgery, Kaohsiung Medical Univerity Hospital, Kaohsiung, Taiwan
*Purpose: Sensitiziation in form of donor-specific antibodies (DSA) and subsequent antibody-mediated rejection (AMR) constitute some of the greatest risk factors for allograft rejection and long-term…
2019 American Transplant Congress
Endothelial Cell Cytoskeleton Rearrangement (ECCSKR) and Endothelial to Mesenchymal Transition (EndoMT) in Liver Allografts Following Acute Rejection (AR): Its Significance on the Development of Liver Fibrosis (LF) and Graft Survival
B. H. Ozdemir¹, G. Ozgun¹, E. H. Ayvazoglu Soy², N. Haberal¹, G. Moray², M. Haberal²
¹Pathology, Baskent University, Ankara, Turkey, ²Transplantation, Baskent University, Ankara, Turkey
*Purpose: Endothelial cell (EC) cytoskeleton is critical for EC adhesion and permeability. CSKR initiates permeability and influx of leukocytes which in turn leads to increased…
2019 American Transplant Congress
Hypothermic Protection Attenuates Kidney Injury in Renal Ischemia-Reperfusion Injury via Phosphorylation of ERK
D. Choi¹, J. Jeong², K. Lee¹, K. Na¹, Y. Chang³, Y. Ham¹, J. Jeon¹, H. Kim¹
¹Nephrology, Chungnam National University, Daejeon, Korea, Republic of, ²Medical Science, Chungnam National University, Daejeon, Korea, Republic of, ³Nephrology, Catholic University of Korea, Daejeon, Korea, Republic of
*Purpose: Hypothermia attenuates the renal injury induced by ischemia-reperfusion. However, the detailed molecular pathway remains unknown. ERK and HIF1 are known to protect against ischemia-reperfusion…
2019 American Transplant Congress
Kupffer Cells Are Critical for Inflammation Resolution in Liver Ischemia Reperfusion Injury via TIM-4 Mediated Efferocytosis
M. Ni¹, H. Wang¹, D. Jin¹, J. Zhang¹, R. Busuttil¹, J. Kupiec-Weglinski¹, X. Wang², Y. Zhai¹
¹Dumont-UCLA Transplant Center, Los Angeles, CA, ²The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
*Purpose: Liver ischemia reperfusion injury (IRI) remains a clinical problem associated with both surgical and non-surgical settings. Innate immune-dominated inflammation drives the pathogenesis of liver…