Articles tagged "Kidney transplantation"

2021 American Transplant Congress
Mapping Chronic Kidney Disease (CKD) and Acute Kidney Injury (AKI) in Kidney Transplant Biopsies Reveals Two Classes of Early AKI That Differ in Their Response-to-Wounding
P. Halloran¹, J. Reeve¹, G. Böhmig², O. Viklicky³, M. Myslak⁴, G. Gupta⁵, &. the INTERCOMEX Study Group⁶
¹Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada, ²Medical University of Vienna, Vienna, Austria, ³Institute for Clinical and Experimental Medicine, Prague, Czech Republic, ⁴Pomeranian Medical University, Szczecin, Poland, ⁵Virginia Commonwealth University, Richmond, VA, ⁶., ., AB, Canada
*Purpose: We recently analyzed injury-induced molecular changes in kidney transplant biopsies using principal component analysis (PCA) (AJT https://doi.org/10.1111/ajt.16374). PC1 reflected all injury, PC2 distinguished early…
2021 American Transplant Congress
High Levels of Donor-Derived Cell-Free DNA Predict EGFR Decline After Kidney Transplantation
T. Alhamad¹, V. Bowers², E. Stites³, S. Anand⁴, J. S. Bromberg⁵, H. Murad¹, G. Gupta⁶, I. Moinuddin⁶, L. Bu⁷, S. Ghosh⁸, J. Zeng⁸, A. Pai⁹
¹Washington University in St. Louis, St. Louis, MO, ²Tampa General Hospital, Tampa, FL, ³University of Colorado, Aurora, CO, ⁴Intermountain Medical Center, Murray, UT, ⁵University of Maryland School of Medicine, Baltimore, MD, ⁶Virginia Commonwealth University, Richmond, VA, ⁷University of Minnesota, Minneapolis, MN, ⁸CareDx, Brisbane, CA, ⁹University of Texas McGovern Medical School, Houston, TX
*Purpose: Persistent, low-grade inflammation is associated with decline in eGFR. Cross-sectional studies have demonstrated a consistent association between circulating inflammatory markers and kidney function. Our…
2021 American Transplant Congress
Immunosuppression Reduction Strategies for Polyoma BK Viremia in Kidney Transplant Patients on Belatacept-Based Immunosuppression
O. Roe¹, E. Meredith¹, A. Reid², A. Basu³
¹Emory University Hospital, Atlanta, GA, ²University of California San Francisco Medical Center, San Francisco, CA, ³Emory Transplant Center, Atlanta, GA
*Purpose: The mainstay of treatment for BK infection is immunosuppression (IS) reduction, however limited literature provides guidance for treatment of patients with a belatacept-based IS…
2021 American Transplant Congress
Single Cell Rna-Sequencing of Urinary Cells and Defining the Immune Landscape of Rejection in Human Kidney Allografts
T. Muthukumar¹, H. Yang¹, A. Belkadi², G. Thareja², C. Li¹, C. Snopkowski¹, K. Chen¹, T. Salinas¹, M. Lubetzky¹, J. Lee¹, D. Dadhania¹, K. Suhre², M. Suthanthiran¹
¹Nephrology, NY Presbyterian- Weill Cornell Medical College, New York, NY, ²Physiology and Biophysics, Weill Cornell Medicine-Qatar, Doha, Qatar
*Purpose: Transcriptome-based clustering of urinary cells in kidney transplant recipients may help identify cell-type specific injury and develop cell-type specific biomarkers for the noninvasive assessment…
2021 American Transplant Congress
Successful Long-Term TMA- and Rejection-Free Survival of a Kidney Xenograft With Triple Xenoantigen Knockout Plus Insertion of Multiple Human Transgenes
T. Hirose¹, D. Ma¹, G. Lassiter¹, H. Sasaki¹, I. Rosales², T. Coe¹, C. Rickert¹, R. Matheson¹, R. Colvin², W. Qin³, Y. Kan³, J. Layer³, K. Stiede³, K. Hall³, M. Youd³, W. Westlin³, M. Curtis³, J. F. Markmann¹, T. Kawai¹
¹Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, ²Pathology, Massachusetts General Hospital, Boston, MA, ³eGenesis Inc, Cambridge, MA
*Purpose: Pigs with deletion of 3 carbohydrate xenoantigens (triple knock-out, TKO) are expected to be optimal donors for human xenotransplantation. However, anti-porcine natural antibodies of…
2021 American Transplant Congress
Athena – Effect of Primary Immunosuppression on Development of De Novo Donor Specific Antibodies within First Year After Kidney Transplantation
W. Arns¹, A. Philippe¹, V. Ditt¹, I. A. Hauser¹, F. Thaiss¹, C. Sommerer¹, B. Suwelack¹, A. Finkel², C. Schiedel², D. Dragun¹, B. Nashan¹
¹ATHENA, Study Group, Germany, ²Novartis Pharma GmbH, Nuremberg, Germany
*Purpose: The ATHENA trial [NCT01843348] investigated safety and efficacy of everolimus combined with cyclosporine A [EVR/CsA] or tacrolimus [EVR/TAC] vs. tacrolimus plus mycophenolic acid [MPA/TAC]…
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
Sampling Renal Biopsies in Pre-Clinical Research for Comprehensive Assessment
C. M. Edwards¹, C. Albert², D. Stern¹, J. Langford¹, W. Day², J. R. DiRito¹, W. M. Saltzman², M. Kashgarian³, J. S. Pober⁴, G. T. Tietjen¹
¹Surgery, Yale School of Medicine, New Haven, CT, ²Biomedical Engineering, Yale School of Medicine, New Haven, CT, ³Pathology, Yale School of Medicine, New Haven, CT, ⁴Immunobiology, Yale School of Medicine, New Haven, CT
*Purpose: Previous literature has demonstrated that single biopsies are not representative of a whole kidney in clinical assessments. In this study we aimed to design…
2021 American Transplant Congress
Initial Experience with Trugraf^Tm Gene Expression Profile and Trac^Tm Dd-cfdna Testing in Kidney Transplant Recipients Suggests Synergy and Enhanced Management within the First Year Post-transplant and Beyond
V. Paramasivam, B. Greco, M. Germain
Nephrology, Baystate Medical Center, Springfield, MA
*Purpose: Non-invasive validated rejection biomarkers are now available to monitor kidney transplant patients (KTRs). Two such biomarkers are; TruGrafTM (TG) gene expression profile validated to…
2021 American Transplant Congress
Torque Teno Virus Load Predicts Allograft Rejection but Not Viral Infection After Kidney Transplantation; A Cohort Joint Modelling Study
A. L. van Rijn¹, H. F. Wunderink², I. A. Sidorov¹, C. S. de Brouwer¹, A. C. Kroes¹, H. Putter³, A. P. de Vries⁴, J. I. Rotmans⁴, M. C. Feltkamp¹
¹Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands, ²Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands, ³Medical Statistics, Leiden University Medical Center, Leiden, Netherlands, ⁴Internal Medicine, Leiden University Medical Center, Leiden, Netherlands
*Purpose: The main challenge of immunosuppressive therapy after solid organ transplantation is to find the optimal dose regimen, and prevent allograft rejection as well as…