Articles tagged "Genomic markers"

2022 American Transplant Congress
Month 1 Donor Derived Cell Free DNA Levels Predict Future Kidney Transplant Rejection
B. M. Kinsella¹, K. Guo¹, C. Rebello¹, L. Zhao¹, S. Park², J. Friedewald¹
¹Northwestern University, Chicago, IL, ²Transplant Nephrology, Northwestern University, Chicago, IL
*Purpose: The purpose of this study was to determine if donor-derived cell-free DNA (dd-cfDNA) can be used one-month post-transplant to predict later allograft rejection.*Methods: Retrospective…
2022 American Transplant Congress
dd-cfDNA Varies Among Diagnostics Groups of Pulmonary AMR
D. Levine¹, C. Giner¹, C. Pham², R. Woodward³, A. Roux⁴
¹University of Texas Health System San Antonio, San Antonio, TX, ²CareDX, South San Francisco, CA, ³CareDx, South San Francisco, CA, ⁴Pneumology, Adult CF Center and Lung Transplantation Department, Foch Hospital, Suresnes, France
*Purpose: Antibody mediated rejection (AMR) in lung transplant remains complex, with differential diagnosis often overlapping with other causes of lung dysfunction. Diagnostic certainty declines to…
2022 American Transplant Congress
Do Early Trends of Donor-Derived Cell Free DNA Predict Long Term Kidney Allograft Outcomes?
S. Park¹, K. Guo², L. Zhao², C. Rebello², J. Friedewald²
¹Transplant Nephrology, Northwestern University, Chicago, IL, ²Northwestern University, Chicago, IL
*Purpose: Donor-derived cell-free DNA (dd-cfDNA) has been studied and established for acute rejection detection but the impact of early dd-cfDNA changes on graft outcomes has…
2022 American Transplant Congress
The Unique Course of dd-cfDNA After Lung Transplant
D. Levine¹, C. Giner¹, C. Pham², R. Woodward³, A. Roux⁴
¹University of Texas Health System San Antonio, San Antonio, TX, ²CareDX, South San Francisco, CA, ³CareDx, South San Francisco, CA, ⁴Pneumology, Adult CF Center and Lung Transplantation Department, Foch Hospital, Suresnes, France
*Purpose: The time necessary for dd-cfDNA to reach baseline levels following transplantation has been reported in kidney, heart, and liver as 14-21 days. We explored…
2022 American Transplant Congress
Single-cell Transcriptomic Analysis Of Peripheral Blood Reveals The Disparate Subsets Of Innate Immune Cells In Kidney Transplant Recipient With BK Virus Infection
H. BAE¹, J. Ryu², J. Jang¹, J. Lee¹, G. Ko¹, H. PARK¹, E. Oh³
¹Department of Biomedical Science, Graduate School, College of medicine, The Catholic university of Korea, Seoul, Seoul, Korea, Republic of, ²Department of Laboratory Medicine, College of Medicine, Seoul St. Mary’s hospital, the Catholic University of Korea, seoul, Korea, Republic of, ³Catholic University Department of Laboratory Medicine, Seoul 137-040, Korea, Republic of
*Purpose: BK virus (BKV) infection is a common problem in kidney transplant recipients receiving immunosuppressive therapy, resulting in a serious complications including BKV-associated nephropathy and…
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
Remote Monitoring Using Mobile Phlebotomy and Donor-derived Cell-free DNA in Kidney Transplant Recipients During the Covid-19 Pandemic
N. Ali¹, J. Miles², V. Tatapudi¹, R. Montgomery¹
¹NYU Langone, New York, NY, ²Medical Science Liason, CareDx, Brisbane, CA
*Purpose: The rapid shift to telemedicine and remote monitoring of kidney transplant recipients (KTRs) during COVID-19 aimed to mitigate exposure risk for this vulnerable population.…
2021 American Transplant Congress
Urinary Exosome Mrna Signature for the Diagnosis of Human Kidney Transplant Rejection
R. El Fekih¹, J. Hurley², V. Tadigotla², A. Alghamdi³, A. Srivastava⁴, C. Coticchia², J. Choi¹, H. Allos⁵, k. yatim⁵, J. Alhaddad⁵, S. Eskandari⁵, P. Chu⁵, A. Mihali⁵, I. Lape⁵, M. Lima Filho⁵, B. Ayoma⁵, A. Chandraker⁵, K. Safa⁶, J. Markmann⁶, L. Riella⁶, R. Formica⁷, J. Skog², J. Azzi⁵
¹Medecine, Brigham and Women Hospital, Boston, MA, ²Exosome Diagnostics, Boston, MA, ³Boston Children Hospital, Boston, MA, ⁴Center for Translational Metabolism and Health, Chicago, IL, ⁵Transplantation Research Center, Boston, MA, ⁶Massachusetts General Hospital, Boston, MA, ⁷Yale School of Medicine, New Haven, CT
*Purpose: Traditional biomarkers currently used to monitor the kidney allograft, such as creatinine and proteinuria, are late markers of injury and lack sensitivity, specificity and…
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…
2021 American Transplant Congress
Does the Timing of Subclinical Acute Rejection After Kidney Transplant Matter?
P. Portocarrero¹, S. Park², K. Guo³, L. Zhao³, J. Friedewald²
¹Nephrology, Northwestern University, Chicago, IL, ²Transplant Nephrology, Northwestern University, Chicago, IL, ³Feinberg School of Medicine, Northwestern University, Chicago, IL
*Purpose: We hypothesized that the timing of subclinical acute rejection (subAR) diagnosed with biopsy, gene expression profile or donor-derived cell-free DNA is associated with poor…