Abstracts Archive - Page 315 of 1683 - ATC Abstracts

2021 American Transplant Congress
The Risk of Post-donation Kidney Function Impairment for Prospective Living Kidney Donors with Persistent Isolated Microscopic Hematuria
J. v. Weijden¹, M. van Londen¹, I. M. Nolte², M. H. De Borst¹, S. P. Berger¹
¹Nephrology, University Medical Center Groningen, Groningen, Netherlands, ²Epidemiology, University Medical Center Groningen, Groningen, Netherlands
*Purpose: According to current guidelines, a kidney biopsy is indicated in prospective living kidney donors who present with persistent isolated microscopic hematuria (PIMH) during evaluation,…
2021 American Transplant Congress
Association Between Donor-Recipient Genetic Matching and Acute Rejection in Kidney Transplantation
R. Cao¹, V. Arthur², J. Chen², B. Keating², C. Dorr³, D. Schladt³, G. Onyeaghala³, R. Mannon⁴, A. Matas¹, R. Remmel¹, N. Pankratz¹, B. Wu¹, W. Oetting¹, P. Jacobson¹, A. Israni³, W. Guan¹
¹University of Minnesota, Minneapolis, MN, ²University of Pennsylvania, Philadelphia, PA, ³Hennepin Healthcare Research Institute, Minneapolis, MN, ⁴University of Nebraska, Omaha, NE
*Purpose: In this study we carried out a genome-wide association study (GWAS) between donor-recipient matching scores at individual SNP level and Acute rejection (AR) in…
2021 American Transplant Congress
Autoimmune Responses to DNA Topoisomerase I Exacerbate Renal Allograft Injury
V. Gorbacheva, R. Fan, S. Miyairi, W. Baldwin, R. Fairchild, A. Valujskikh
Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
*Purpose: Multiple clinical and pre-clinical studies describe correlations between pre-existing or de novo autoimmune responses and poor transplant outcome. We have previously reported that following…
2021 American Transplant Congress
Murine Cytomegalovirus Induces Kidney Allograft Injury via Th17 Cells Recruited by Both Viral Antigen-Specific and Cytokine/chemokine Mediated Pathways
R. Dhital¹, V. Velazquez¹, Q. Zeng², B. Graber¹, K. Flint¹, M. Shimamura¹
¹Vaccines and Immunity, Nationwide Children's Hospital, Columbus, OH, ²Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH
*Purpose: Cytomegalovirus infection in transplant recipients has been associated with renal allograft rejection and graft failure. We have previously shown that murine CMV (MCMV) infected…
2021 American Transplant Congress
Antibodies to Hla Molecules Lead to Induction and Release of Circulating Exosomes with Lung Self-Antigens
R. Ravichandran, M. Smith, R. Bremner, T. Mohanakumar
St. Joseph’s Hospital and Medical Center, Phoenix, AZ
*Purpose: Antibodies (Abs) to human leukocyte antigen (HLA) (anti-HLA) can injure allograft by complement-dependent/independent mechanisms. Crosslinking of HLA-class I with Abs associate with integrin β4…
2021 American Transplant Congress
Invariant Nkt Cells Promote Expansion of Novel Cxcr3⁺Ccr4⁺Cd8⁺ T Cells in the Liver Following Allogeneic Hepatocyte Transplant
J. Zimmerer¹, B. Ringwald², S. Chaudhari¹, J. Han¹, C. M. Peterson¹, R. T. Warren¹, M. Hart¹, M. Abdel-Rasoul³, G. Bumgardner¹
¹OSU, Columbus, OH, ²Medical Student Research Program, OSU, Columbus, OH, ³Center for Biostatistics, OSU, Columbus, OH
*Purpose: Hepatocyte transplantation represents a treatment for metabolic diseases and a bridge therapy to whole organ transplant but is limited in part by cell immunogenicity.…
2021 American Transplant Congress
Targeting Il-21 Receptor Shifts Tfh/tfr Balance and Ameliorateschronic Antibody Mediated Rejection
Y. Nian, Z. Xiong, J. Zhao, Y. Fu
Tianjin First Central Hospital, Tianjin, China
*Purpose: Donor specific antibody (DSA) plays a central role in chronic kidney allograft injury. As a trigger of humoral alloimmune response, follicular T helper cells(Tfh)…
2021 American Transplant Congress
Development of a Rat Model of Antibody-Mediated Rejection After Liver Transplantation
T. Tajima, K. Hata, J. Kusakabe, H. Miyauchi, S. Uemoto
Dept. of Surgery, Div. of HBP Surgery & Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan
*Purpose: Antibody-mediated rejection (AMR) is a refractory rejection after donor-specific antibody (DSA)-positive or ABO blood-type incompatible liver transplantation (LT), due at least in part to…
2021 American Transplant Congress
Quantifying Hidden Sensitization: HLA-reactive Memory B Cells in the Spleens of Sensitized Women
J. T. Killian¹, J. A. Houp¹, A. Nellore², R. G. King³, P. M. Porrett¹, F. E. Lund³
¹Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, ²Department of Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, AL, ³Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL
*Purpose: Measurement of circulating anti-HLA antibody (anti-HLA-Ab) in transplant candidates and recipients is required for successful organ transplantation. However, serum Ab measurement alone likely underestimates…
2021 American Transplant Congress
Re-Transplantation of Mouse Kidney Grafts to Study Local Immune Responses
D. Zhao, M. Oberbarnscheidt, F. Lakkis, K. Khodor
Starzl Transplantation Institution, Pittsburgh, PA
*Purpose: Mouse kidney transplantation has been widely used to study the immune response to allogeneic grafts. This response includes a circulating systemic compartment and a…