Articles tagged "Non-invasive diagnosis"

2020 American Transplant Congress
Integrated Multicohort Analysis of Transcriptome Profiles Identifies Blood Gene Signature to Distinguish Rejection from Infection in Patients with Solid Organ Transplants
L. C. Murphy, A. Rao, M. Donato, P. Khatri
School of Medicine, Stanford University, Stanford, CA
*Purpose: Allograft rejection and infection are now leading causes of morbidity and mortality in transplant recipients. Current diagnosis relies on nonspecific markers of graft injury,…
2020 American Transplant Congress
Assessment of the Usefulness of Urine Signature to Differentiate Acute Rejection in a Prospective Kidney Transplantation Cohort
J. Seo¹, S. Jung², J. Moon², K. Jeong³, C. Kim⁴, B. Chung⁵, J. Park⁶, Y. Kim⁷, S. Lee²
¹Department of Core Research Laboratory, Medical Science Institute, Kyung Hee University Hospital at Gangdong, Seoul, Korea, Republic of, ²Department of Internal Medicine, Division of Nephrology, Kyung Hee University Hospital at Gangdong, Seoul, Korea, Republic of, ³Department of Internal Medicine, Division of Nephrology, College of Medicine, Kyung Hee University, Seoul, Korea, Republic of, ⁴Department of Internal Medicine, Division of Nephrology, Kyung-pook National University School of Medicine, Daegu, Korea, Republic of, ⁵Department of Internal Medicine, Division of Nephrology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of, ⁶Department of Internal Medicine, Sungkyunkwan University, Samsung Hospital, College of Medicine, Seoul, Korea, Republic of, ⁷Department of Internal Medicine, Division of Nephrology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea, Republic of
*Purpose: Despite many biomarker studies in the field of transplantation, development and validation of noninvasive molecular assays to diagnose disease and monitor immune activity is…
2020 American Transplant Congress
Calibration of Donor-Derived Cell-Free DNA Criteria for Rejection with Molecular Diagnoses of Kidney Transplant Biopsies
I. Moinuddin¹, D. Kumar¹, L. Kamal¹, A. King¹, L. Kang¹, M. Levy¹, S. Bobba¹, D. Massey¹, P. Halloran², G. Gupta¹
¹Virginia Commonwealth University, Richmond, VA, ²Alberta Transplant Genomics Applied Centre, Edmonton, AB, Canada
*Purpose: Traditional microscopic histopathologic assessment (HDx) can be prone to error due to inter-observer variability as well as the non-specificity of some histologic lesions. Donor-derived…
2020 American Transplant Congress
Urine Donor Derived Cell Free DNA Aids in the Diagnosis of BK Polyomavirus Nephropathy in Kidney Transplant Recipients with BK Viruria
G. Huang¹, X. Chen¹, W. Chen¹, P. Chen¹, T. Jiang², C. Wang¹, L. Chen¹
¹The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China, ²AlloDx Biotech Co., Ltd, Suzhou, China
*Purpose: BK polyomavirus nephropathy (BKVN) are important cause of dysfunction and failure of renal transplants, which is similar to T cell mediated rejection (TCMR) in…
2020 American Transplant Congress
Non-Invasive Near Infrared Fluorescence Based Monitoring of Macrophage Mediated Inflammation
H. Karagoz¹, N. Vettikattu¹, F. Selek¹, H. Kapucu¹, E. Goktas¹, L. Liu², Y. Kulahci¹, F. Zor¹, J. M. Janjic², V. S. Gorantla¹
¹Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, ²Department of Pharmaceuticals, Duquesne University, Pittsburgh, PA
*Purpose: Clinical assessments for inflammation and acute rejection (AR) require regular, invasive biopsies followed by staining protocols that provide static images of tissue. Despite such…
2020 American Transplant Congress
Donor-Derived Cell-Free DNA is Not Influenced by Steroid Dosing in Heart Transplant Recipients
J. Teuteberg¹, S. Krim², M. Shullo³, S. Jimenez¹, H. Eisen⁴
¹Stanford University, Stanford, CA, ²Ochsner Medical Center, New Orleans, LA, ³West Virginia University, Morgantown, WV, ⁴Pennsylvania State University, Hershey, PA
*Purpose: Gene expression profiling (GEP) was recognized as an alternative to biopsy for rejection surveillance in the 2010 International society for Heart and Lung Transplantation…
2020 American Transplant Congress
Two Pilot Studies Exploring the Diagnostic and Predictive Potential of Serum LAG3 and FGL1 in Kidney Transplant Recipients
Y. Li¹, L. Yan¹, Y. Li¹, C. Yang¹, Z. Wan¹, Y. An¹, Y. Bai¹, L. Wang¹, Y. Shi²
¹Department of Laboratory Medicine, West China Hospital, Chengdu, China, ²Department of Nephrology, West China Hospital, Chengdu, China
*Purpose: Lymphocyte activation gene 3 (LAG3), an immune checkpoint, plays an important role in the negative regulation of immune response and the induction of immune…
2020 American Transplant Congress
An Optimized Integrative Model Using Urinary Chemokines for Noninvasive Diagnosis of Acute Allograft Rejection
C. Tinel¹, A. Devresse¹, A. Vermorel¹, D. Marx², S. Caillard², C. Legendre¹, M. Rabant³, D. Anglicheau¹
¹Nephrology and Kidney Transplantation, Inserm U1151, Necker Hospital, Paris, France, ²Nephrology and Kidney Transplantation, Strasbourg University Hospital, Strasbourg, France, ³Pathology, Necker Hospital, Paris, France
*Purpose: The aim of this study was to optimize the performance of urinary chemokines C-X-C motif ligand (CXCL) 9 and CXCL10 as noninvasive diagnostic markers…
2020 American Transplant Congress
Noninvasive Detection of Subclinical Rejection in Urine RNA
K. S. Keslar¹, D. Margeta¹, J. J. Friedewald², M. Abecassis², R. B. Mannon³, P. S. Heeger⁴, R. L. Fairchild¹
¹Cleveland Clinic, Cleveland, OH, ²Northwestern University, Chicago, IL, ³University of Alabama at Birmingham, Birmingham, AL, ⁴Icahn School of Medicine, New York, NY
*Purpose: Subclinical rejection may lead to long-term graft injury and can currently only be detected by repeated biopsies. A noninvasive method is needed to monitor…
2020 American Transplant Congress
Discovery and Validation of a Urinary Exosome mRNA Signature for the Diagnosis of Human Kidney Transplant Rejection
R. El Fekih¹, A. Alghamdi¹, J. Hurley², C. Coticchia², J. Choi¹, H. Allos¹, S. Eskandari¹, S. Bentink², V. Tadigotla², L. Riella¹, J. Markmann³, K. Safa³, R. Formica⁴, J. Skog², J. Azzi¹
¹Medecine, Brigham and Women's Hospital, Boston, MA, ²Exosome Diagnostics Inc., Waltham, MA, ³Massachusetts General Hospital, Boston, MA, ⁴Yale School of Medecine, New Haven, CT
*Purpose: Monitoring kidney transplant rejection by repeated biopsies might result in increased procedural complications and cost. Exosomes are nanometer-sized vesicles released by cells carrying trans…