Am J Transplant, Volume 21, Suppl 3 Archives - Page 132 of 139 - ATC Abstracts

2021 American Transplant Congress
Transgenic Beta-cell Cxcl12 Expression and Stem Cell Mobilization Synergize to Suppress Type 1 Diabetes
D. A. Alagpulinsa, A. Jajoo, M. H. Chapin II, M. C. Poznansky
Vaccine & Immunotherapy Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA
*Purpose: Hematopoietic stem and progenitor cells (HSPCs) and regulatory T cells (Tregs) highly express CXCR4, the receptor for the CXCL12 chemokine. This keeps them predominantly…
2021 American Transplant Congress
HLA I Antibody-Activated Endothelium Polarized M2-Like Macrophages with Increased Efferocytic and Phagocytic Capacity
J. Nevarez-Mejia¹, X. Wei¹, N. M. Valenzuela¹, M. Rossetti¹, H. Pickering¹, G. A. Fishbein¹, A. Mulder², E. F. Reed¹
¹Pathology and Laboratory Medicine, UCLA, Los Angeles, CA, ²Immunohematology and Blood Transfusion, LUMC, Leiden, Netherlands
*Purpose: The role of intragraft macrophages (Mϕs) during antibody-mediated rejection (AMR) remains unclear. Anti-HLA Abs during AMR drives vascular inflammation as seen by monocyte recruitment…
2021 American Transplant Congress
Naïve Rhesus Monkey CD4⁺CD8^loT Cells Comprise High Percentage of Memory T Cells with Strong Effector Function
M. Kubo, K. Sasaki, A. P. Gutiérrez, L. Lu, V. Vujevich, A. W. Thomson, M. Ezzelarab
Department of Surgery, University of Pittsburgh, PITTSBURGH, PA
*Purpose: Human CD4+CD8loT cells have been reported in patients with organ allograft rejection. We evaluated the incidence, phenotype, and function of CD4+CD8loT cells in nonhuman…
2021 American Transplant Congress
Alloreactive Memory T Follicular Helper Cells Rapidly Differentiate Into Effectors Independent of B Cell Memory Following Retransplantation
S. Zeng, E. S. Crichton, I. R. Badell
Department of Surgery, Emory, Atlanta, GA
*Purpose: Donor-directed HLA antibodies are an important cause of renal allograft injury, but effective therapeutic options to prevent or eliminate donor-specific antibodies (DSA) do not…
2021 American Transplant Congress
Islet Isograft Transplantation Improves Insulin Sensitivity in a Murine Model of Type 2 Diabetes
S. Lim, M. Choi, M. Kim, Y. Wee, H. Kwon, C. Jung, Y. Kim, D. Han, S. Shin
Asan Medical Center, Seoul, Songpa, Korea, Republic of
*Purpose: Type 2 diabetes develops in the presence of chronic overnutrition and genetic susceptibility, and causes insulin resistance and relative insulin deficiency. We hypothesized that…
2021 American Transplant Congress
Thrombolytic Therapy During Ex-Vivo Normothermic Machine Perfusion of Human Livers Reduces Peribiliary Vascular Plexus Injury
O. Haque¹, S. Raigani², I. Rosales², C. Carroll², T. M. Coe², S. Baptista², H. Yeh², K. Uygun², J. F. Markmann²
¹Surgery, Beth Israel Deaconess Medical Center, Boston, MA, ²Massachusetts General Hospital, Boston, MA
*Purpose: A major limitation in expanding the use of DCD livers in transplantation are the higher rates of graft failure secondary to ischemic cholangiopathy. Warm…
2021 American Transplant Congress
Mitochondrial Transplant Minimizes Liver Ischemia Reperfusion Injury in Lean and Obese Mice
C. Watkins¹, G. Lamanilao¹, C. Kuscu¹, C. Kuscu¹, J. F. Pierre², J. Eason¹, A. Bajwa¹
¹Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, ²Department of Pediatrics - Divisions of Neonatology and Pediatric Obesity, The University of Tennessee Health Science Center, Memphis, TN
*Purpose: Ischemia induces altered bioenergetics within cells with increased mitochondrial swelling and reactive oxygen species and that ultimately degrade of cellular function. Ischemia reperfusion injury…
2021 American Transplant Congress
Longitudinal Variance of Donor Derived Cell Free DNA (dd-cf DNA) in Stable Kidney Transplant (Tx) Patients are Influenced by Donor/Recipient Variables
S. Anand, F. Lopez-Verdugo, J. Sanchez-Garcia, L. Dong, M. Fife, J. Krong, D. Morris, T. Srinivas
Intermountain Medical Center, Murray, UT
*Purpose: The limits and cut offs of dd-cfDNA as an injury biomarker in kidney transplant (KTx) are based on coupled single event (biopsy) measurements. It…
2021 American Transplant Congress
A Reliable Non Invasive Alternative to Surveillance Renal Allograft Biopsy
R. Jain, S. Thaduri, V. Kumar, C. Kew, B. Julian, G. Towns, S. Ong, F. Ahmed, S. Mehta, G. Agarwal
Transplant Nephrology, University of Alabama Birmingham, Birmingham, AL
*Purpose:Surveillance Renal Allograft Biopsy (SAVB) is the standard of care to identify subclinical immunological injury(SCI). However fewer than 25% of transplant centers in the US…
2021 American Transplant Congress
Blood Gene Expression and Donor-derived Cell Free DNA for Diagnosing Subclinical Acute Rejection in Stable Kidney Transplant Recipients
S. Park¹, K. Guo², H. Raymond³, E. Poggio⁴, D. Taber⁵, C. Marsh⁶, S. Kurian⁷, S. Kleiboeker⁸, J. Weems⁸, J. Holman⁹, L. Zhao², R. Sinha⁸, S. Brietigam², C. Rebello², M. Abecassis¹⁰, J. Friedewald¹
¹Transplant Nephrology, Northwestern University, Chicago, IL, ²Feinberg School of Medicine, Northwestern University, Chicago, IL, ³Mayo Clinic College of Medicine and Science, Phoenix, AZ, ⁴Department of Nephrology and Hypertension, Cleveland Clinic, Cleveland, OH, ⁵Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, ⁶Department of Medicine and Surgery, Scripps Clinic and Green Hospital, La Jolla, CA, ⁷Scripps Health, La Jolla, CA, ⁸Eurofins US Clinical Diagnostics, Lee's Summit, MO, ⁹Transplant Genomics, Inc, Mansfield, MA, ¹⁰University of Arizona College of Medicine, Tucson, AZ
*Purpose: A blood gene expression profile (GEP) has been established as a non-invasive screen for subclinical acute rejection (subAR). For patients with allograft dysfunction, donor-derived…