Am J Transplant, Volume 20, Suppl 3 Archives - Page 209 of 223 - ATC Abstracts

2020 American Transplant Congress
Concept Discussion: Five Experimental Stages to Establish the Methodologies for Organ Farming
R. F. Smith
George Washington University, Bristow, VA
*Purpose: Most of the technologies to grow human organs in vitro already exist, but experimentation (and policy development support) will be required to ensure that:*Methods:…
2020 American Transplant Congress
HLA-Antibody Develops Preferentially in Healthy Subjects with a T-bet^hiB Cell Response to Vaccine
A. Nellore, G. R. Martens, J. T. Killian, J. Houp, E. Zumaquero, B. Mousseau, J. Bradley, F. Zhou, P. A. Goepfert, F. E. Lund
University of Alabama, Birmingham, AL
*Purpose: Bystander B cell differentiation into antibody (Ab) secreting cells (ASCs) may augment alloimmunity in the HLA-sensitized patient. Recently, a population of FcrL5+IgDnegB cells that…
2020 American Transplant Congress
Treg Use PD-1 for Lymphatic Migration
W. Piao¹, L. Li¹, K. Hippen², Y. Zhang³, Y. Xiong¹, V. Saxena¹, C. Paluskievicz¹, M. WillsonShirkey¹, B. Blazar⁴, L. Riella⁵, J. Bromberg⁶
¹Surgery, U of Maryland, Baltimore, MD, ²U of Minnesota, Minneapolis, MN, ³U of Maryland, Minneapolis, MD, ⁴U of Minnesota, Minneapolis, MA, ⁵Harvard U, Boston, MA, ⁶Surgery and Microbiology and Immunology, U of Maryland, Baltimore, MD
*Purpose: Regulatory T cell (Treg) lymphatic migration is important for immune tolerance. Treg express both programmed death-1 (PD-1) and its ligand PD-L1, which are important…
2020 American Transplant Congress
Chronic Kidney Disease Alters the T Cell Response to Murine Cytomegalovirus
R. L. Crepeau¹, H. Li¹, H. S. Koehler², M. L. Ford¹, P. D. Winterberg³
¹Surgery, Emory University, Atlanta, GA, ²Microbiology and Immunology, Emory University, Atlanta, GA, ³Pediatrics, Emory University, Atlanta, GA
*Purpose: We have previously reported that patients with chronic kidney disease (CKD) accumulate memory T cells bearing markers of sustained antigen stimulation and enhanced pro-inflammatory…
2020 American Transplant Congress
Detrimental Effects of Donor Brain Death on Tolerance Induction May be Eliminated by Delaying Mixed Chimerism in Non-Human Primates
J. M. O¹, W. Sommer², K. Ahrens¹, P. Patel¹, D. Becerra¹, J. Morrissette¹, T. Costa¹, K. Pruner¹, J. Paster¹, A. Bean¹, A. Dehnadi¹, I. Hanekamp¹, I. Rosales¹, R. Smith¹, R. Colvin¹, G. Benichou¹, J. Allan³, T. Kawai¹, J. Madsen⁴
¹Center for Transplantation Sciences, MGH, Boston, MA, ²Department for Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany, ³Division of Thoracic Surgery, MGH, Boston, MA, ⁴Division of Cardiac Surgery, MGH, Boston, MA
*Purpose: Induction of tolerance to heart allografts in non-human primates is possible with kidney cotransplantation and mixed chimerism-based induction therapy. However, donor brain death abrogates…
2020 American Transplant Congress
Medical and Psychosocial Reasons for Deferral and Denial Following Kidney Transplant Evaluation at a VA Transplant Center
D. Katz¹, E. Siniff², M. L. Sanders³, P. Manay¹, P. Ten Eyck⁴
¹Surgery, University of Iowa, Iowa City, IA, ²Transplant, Iowa City Veterans Affairs Hospital, Iowa City, IA, ³Internal Medicine, University of Iowa, Iowa City, IA, ⁴ICTS, University of Iowa, Iowa City, IA
*Purpose: VA kidney transplant patients present challenges that may limit their listing opportunities in the private sector. We sought to study the medical and psychosocial…
2020 American Transplant Congress
Two-Year Post-Transplant eGFR as a Surrogate Outcome of Allograft Survival in Kidney Transplant Recipients
S. Yu, E. Lee, W. Zhang, D. Segev, J. Garonzik-Wang, A. Massie
Johns Hopkins, Baltimore, MD
*Purpose: Graft failure is a major cause of morbidity and mortality in kidney transplant recipients. However, trials aimed to assess the effect of interventions on…
2020 American Transplant Congress
Treg Protection of the Allograft Depends on Lymphotoxin Beta Receptor Expression in Lymphatic Endothelial Cells
V. Saxena¹, W. Piao¹, L. Li¹, Y. Xiong¹, C. Palusckievicz¹, T. Simon¹, M. Shirkey¹, R. Abdi², J. S. Bromberg¹
¹University of Maryland, Baltimore, Baltimore, MD, ²Harvard U, Boston, MA
*Purpose: Regulatory T cell (Treg) migration to afferent lymphatics and lymph nodes (LN), and suppressive function, require Treg lymphotoxin alpha (LTα) to stimulate LT beta-receptor…
2020 American Transplant Congress
Incident Malignancies among Post Kidney-Transplant Patients by Type of Induction Immunosuppression and by Age
L. Wang, J. Motter, S. Bae, D. Segev, M. McAdams DeMarco
Johns Hopkins University, Baltimore, MD
*Purpose: Adult kidney-transplant (KT) recipients have a differential risk of malignancies based on their induction immunosuppression (IS) therapy. However, older recipients are more likely to…
2020 American Transplant Congress
Activated CD27⁺CD21^– Subset Dominate the Memory B Cell Response During Antibody-Mediated Rejection of Kidney Allografts
K. Louis¹, E. Bailly¹, C. Macedo¹, M. Marrari¹, M. Yamada¹, P. Randhawa¹, A. Zeevi¹, C. Lefaucheur², D. Metes¹
¹Surgery, University of Pittsburgh, Pittsburgh, PA, ²Inserm UMR 976, Paris, France
*Purpose: The role of alloreactive memory B (mB) cells in the pathogenesis of antibody-mediated rejection (ABMR) is increasingly recognized. Yet, a comprehensive characterization of mB…