Articles tagged "Gene expression"

2018 American Transplant Congress
Molecular Profiling of the Injury-Repair Response in Early Subclinical Inflammation
M. Seifert, D. Della Manna, X. Liu, F. Rosenblum, M. Yanik, E. Yang, J. Pollock, R. Mannon.
UAB School of Medicine, Birmingham.
Purpose: Surveillance biopsies can detect subclinical T-cell mediated rejection (SC-TCMR) or subclinical borderline rejection (SC-B-TCMR) in kidney transplants with normal/stable creatinine. Some consider SC-B-TCMR to…
2018 American Transplant Congress
Bioinformatics Approach to the Development of a Novel Molecular Biomarker for Sub-Clinical Acute Rejection (subAR) in the Peripheral Blood Following Kidney Transplant (KT)
T. Whisenant,¹ S. Kurian,¹ M. Kandpal,² L. Zhao,² D. Ikle,³ B. Armstrong,³ J. Friedewald,² R. Heilman,⁴ E. Poggio,⁵ C. Marsh,¹ P. Baliga,⁶ N. Bridges,⁷ J. Odim,⁷ M. Brown,⁷ J. Charette,² S. Brietigam,² N. Sustento-Reodica,² D. Salomon,¹ M. Abecassis.²
¹Scripps, La Jolla; ²Northwestern, Chicago; ³Rho, Chapel Hill; ⁴Mayo AZ, Scottsdale; ⁵Cleveland Clinic, Cleveland; ⁶MUSC, Charleston; ⁷NIAID, Bethesda.
Sub-clinical acute rejection (subAR) following KT is associated with poor long-term graft outcomes and can only be detected using invasive surveillance biopsies (SBx). Non-invasive biomarker…
2018 American Transplant Congress
Activation Requirements of Costimulation Blockade-Resistant CD4 T Cells
J. Espinosa, B. Adams, J. Kearns, F. Shaw, R. Osborne, T. Woody, M. Ellis, J. Cheeseman, A. Kirk.
Duke University, Durham.
T cells lose costimulation dependence following primary activation and many phenotypes of terminally differentiated cells have been identified as contributing to costimulation blockade (CoB)-resistant rejection…
2018 American Transplant Congress
Molecular Phenotypes of Injury and Rejection in Lung Transplant Transbronchial Biopsies
M. Parkes, K. Halloran, K. Famulski, P. Halloran, The INTERLUNG Study Group.
University of Alberta, Edmonton, Canada.
Purpose: Histologic assessment of lung transplant transbronchial biopsies (TBB) is not reproducible and cannot assess antibody-mediated rejection (ABMR). Molecular diagnostics (MMDx) successfully identified rejection in…
2018 American Transplant Congress
Intragraft MicroRNA Transcriptome of Acute Antibody Mediated Rejection of Human Kidney Allografts
H. Yang,¹ K. Akat,² C. Li,¹ C. Snopkowski,¹ Z. Khan,¹ D. Dadhania,¹ T. Tuschl,² M. Suthanthiran,¹ T. Muthukumar.¹
¹Weill Cornell Medicine, New York; ²Rockefeller University, New York.
BackgroundMicroRNAs (miRNA) are master regulators of gene expression and are potential therapeutic targets. Intragraft miRNA transcriptome of acute antibody rejection (AMR) of human kidney allograft…
2018 American Transplant Congress
Molecular Injury and Repair Assessment in Ex Vivo Perfused Swine Heart Transplants
N. Herbers, S. Hatami, P. Dromparis, J. Nagendran, M. Mengel, D. Freed, B. Adam.
University of Alberta, Edmonton, Canada.
Background: Cardiac transplantation is a life-saving intervention for advanced heart failure but it is unfortunately limited by a critical shortage of suitable donor organs and…
2018 American Transplant Congress
T Cell-Mediated Rejection Poses Greater Risk to Graft Survival Than Antibody-Mediated Rejection in Heart Transplants
M. Parkes, K. Famulski, P. Halloran, The INTERHEART Study Group.
University of Alberta, Edmonton, Canada.
Purpose: In kidney transplants, failure post-biopsy is associated with acute injury transcript expression reflecting the histologically silent tissue response-to-wounding (JCI 120:1862) and antibody-mediated rejection (ABMR),…
2018 American Transplant Congress
Peripheral Blood Immune Response-Related Gene Analysis for Evaluating the Development of Subclinical Antibody-Mediated Rejection
T. Yamamoto,¹ K. Iwasaki,² K. Murotani,³ A. Takeda,⁴ M. Tsujita,⁴ T. Hiramitsu,⁴ N. Goto,⁴ S. Narumi,⁴ Y. Watarai,⁴ K. Uchida,² T. Kobayashi.⁵
¹Xenotransplantation, University of Alabama at Birmingham, Birmingham, AL; ²Kidney Disease and Transplant Immunology, Aichi Medical University, Nagakute, Japan; ³Biostatistics, Aichi Medical University, Nagakute, Japan; ⁴Kidney Center, Nagoya Daini Red Cross Hospital, Nagoya, Japan; ⁵Renal Transplant Surgery, Aichi Medical University, Nagakute, Japan.
Background: Noninvasive methods for the early diagnosis of chronic antibody-mediated rejection (cAMR) are desired for patients with de novo (dn) donor-specific HLA antibody (DSA) because…
2018 American Transplant Congress
Histogenomics: Molecular Profiling of Kidney Biopsies Predict Delayed Graft Function
P. Rao,¹ D. Deo,¹ B. Fyfe-Kirschner,² R. Siderits.²
¹NJ Sharing Network, New Providence, NJ; ²Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ.
IntroductionHistologic assessments of donor renal biopsies for percentage global glomerulosclerosis, interstitial fibrosis and arterial sclerosis can predict renal graft failure post-transplant.The morphologic evaluation of renal…
2018 American Transplant Congress
Inflammation in Scarred Areas (I-IFTA) is a Reflection of Parenchymal Injury (Response to Wounding) Not T Cell-Mediated Rejection
P. Halloran, J. Chang, K. Famulski.
Medicine, University of Alberta, Edmonton, AB, Canada.
Inflammation in fibrotic renal parenchyma (i-IFTA) is associated with decreased graft survival but by Banff rules is not diagnostic for rejection. Some researchers believe that…