Articles tagged "Rejection"

2022 American Transplant Congress
Tracking of Donor Reactive T Cell Clones Can Be Used to Diagnose or Even Predict Kidney Transplant Rejection
J. M. Mathew¹, Y. Sambandam¹, M. Kandpal¹, J. He¹, G. Perottino¹, B. Banbury², P. Fields², L. Gallon¹, J. R. Leventhal¹
¹Northwestern University, Chicago, IL, ²Adaptive Biotechnologies, Seattle, WA
*Purpose: Transplant (Tx) rejection currently requires an invasive biopsy for diagnosis. We have tested if serial quantitation of donor reactive T cell clones (DRTC) can…
2022 American Transplant Congress
Prospective Evaluation of Donor-Derived Cell-Free DNA (dd-cfDNA) in Monitoring Response to Anti-Rejection Treatment in Kidney Transplant Recipients with Indication Biopsy
L. Benning¹, A. Fink², F. Kälble¹, C. Speer¹, C. Nusshag¹, M. Zeier¹, C. Süsal³, C. Morath¹, T. Tran²
¹Department of Nephrology, University Hospital Heidelberg, Heidelberg, Germany, ²Transplantation Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany, ³Transplant Immunology Research Center of Excellence, Koç University Hospital, Istanbul, Turkey
*Purpose: Donor-derived cell-free DNA (dd-cfDNA) is a marker of allograft injury in kidney transplant recipients (KTR). Little is known about the possible use of dd-cfDNA…
2022 American Transplant Congress
Interleukin-31 (IL-31) and Leukemia Inhibitory Factor (LIF) Are Upregulated in Acute Rejection of Kidney Allograft
I. Striz, L. Krupickova, M. Fialova, M. Novotny, E. Cecrdlova, O. Viklicky
Institute for Clinical and Experimental Medicine, Praha, Czech Republic
*Purpose: Interleukin-31 (IL-31) and leukemia inhibitory factor (LIF) belong to the IL-6 cytokine family clustered by their pro-inflammatory properties and a shared signaling pathway of…
2022 American Transplant Congress
Single Cell Transcriptomics Reveal Allograft Immune Cell Patterns Associated with Histological Features of Acute Cellular Rejection in Liver Transplantation
L. Tran¹, A. Zahorchak¹, C. Macedo¹, T. Tabib², F. Lakkis³, A. Humar¹, D. Metes¹, A. Thomson¹
¹Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, ²University of Pittsburgh Medical Center, Pittsburgh, PA, ³University of Pittsburgh Medical Center - Thomas E. Starzl Transplantation Institute, Pittsburgh, PA
*Purpose: Development of successful tolerance induction strategies using immune cell-based therapies in transplantation depends on improved understanding of the local intra-graft cellular milieu that underlies…
2022 American Transplant Congress
A Novel Prospective Validation Trial Of Multiple Blood-based RNA Signature Assays Pre And Post Kidney Transplant To Predict Rejection
L. Gallon¹, P. O'Connell², A. Chang³, M. Donovan⁴
¹Northwestern Univ, Chicago, IL, ²Westmead Inst, Sydney, Australia, ³Univ of Chicago, Chicago, IL, ⁴Verici Dx, Franklin, TN
*Purpose: The accuracy and utility of clinically defined and analytically validated predictive biomarkers in kidney transplantation is limited. We leveraged prior feasibility blood-RNA studies to…
2022 American Transplant Congress
Inferior Kidney Transplant Outcomes in Young Adults Transplanted as Children
K. Deville, F. Rosenblum, D. R. Kelly, M. Seifert
UAB School of Medicine, Birmingham, AL
*Purpose: Adolescence (age 13-17 years) has been identified as a high-risk age interval for pediatric kidney transplant recipients, with accelerated rates of late acute rejection…
2022 American Transplant Congress
Outcomes of a Standardized Antibody-Mediated Rejection (AMR) Treatment Protocol in Heart Transplant Recipients (HTR)
J. Lee, T. Sam, J. Van Zyl, S. Mckean, L. Fuller, N. Wilson, A. Dao, R. Gottlieb, S. Hall, R. Patel
Baylor University Medical Center, Dallas, TX
*Purpose: AMR in HTR portends poor clinical outcomes. Reported mortality range between 20-50%, with higher rates reported for late AMR occurring at least 1 year…
2022 American Transplant Congress
Study of the Composition of the Inflammatory Burden on a Cohort of 125 Rejections by Multiplex Immunofluorescence
A. Mobio¹, M. Eloudzeri², L. Morin¹, J. Duong Van Huyen³, D. Anglicheau¹, M. Rabant³
¹Kidney transplantation, Necker-Enfants Malades Hospital, Paris, France, ²U1151, INEM, Paris, France, ³Pathology, Necker-Enfants Malades Hospital, Paris, France
*Purpose: The exact composition of the inflammatory burden during kidney transplant rejection has not been studied on large cohorts. Moreover, the determinants and impact of…
2022 American Transplant Congress
The Use of Donor-Derived Cell-Free DNA in Female and Male Heart Transplant Recipients: A Sex-Specific Analysis of the Surveillance Heartcare Outcomes Registry
E. M. DeFilippis¹, Y. Fu², R. Burke², M. Deng³, M. Kamath⁴, L. Lourenco Jenkins², A. R. Vest⁵
¹Columbia University Irving Medical Center, New York, NY, ²CareDx, Brisbane, CA, ³David Geffen School of Medicine at UCLA, Los Angeles, CA, ⁴Ronald Reagan UCLA Medical Center, Los Angeles, CA, ⁵Tufts Medical Center, Boston, MA
*Purpose: To investigate sex-specific donor-derived cell-free DNA AlloSure (AS) levels during allograft quiescence and rejection after heart transplantation.*Methods: Sex-stratified data were obtained from the Surveillance…
2022 American Transplant Congress
TCMR in Late Kidney Transplant Biopsies Shows Less Molecular TCMR Activity and More Fibrosis Despite Persistence of Tubulitis and Interstitial Infiltrate
K. S. Madill-Thomsen¹, J. Reeve¹, P. Halloran¹, .. and the INTERCOMEX Study Group²
¹Alberta Transplant Applied Genomics Centre, Edmonton AB, AB, Canada, ²., ., AB, Canada
*Purpose: We studied the relationship between time post-transplant and molecular T cell-mediated rejection (TCMR) activity in a population of indication kidney transplant biopsies.*Methods: Updated rejection-based…