Articles tagged "Rejection"

2019 American Transplant Congress
The Changing Face of T Cell-Mediated Rejection
A. Perkowska-Ptasinska and INTERCOMEX investigators¹, P. F. Halloran²
¹Medical University of Warsaw, Warsaw, Poland, ²Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada
*Purpose: We studied how the problem of TCMR in indication biopsies was changing with time by exploring features of 138 biopsies with molecular TCMR in…
2019 American Transplant Congress
The Complexity of T Cell-Mediated Rejection Scenarios: Identifying BK in Biopsies with TCMR
P. F. Halloran and The INTERCOMEX Investigators¹, G. Gupta², J. Reeve³
¹University of Alberta, Edmonton AB, AB, Canada, ²Virginia Commonwealth University, Richmond, VA, ³Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada
*Purpose: Some transplanted kidneys have concomitant T cell-mediated rejection (TCMR) and BK virus nephropathy (BK). The histologic diagnosis in BK sometimes overlooks the TCMR component,…
2019 American Transplant Congress
Dual Treatment of CD40 Silencing or Mesenchymal Stem Cells Infusion with Sub-Therapeutic Doses of Cyclosporine Effectively Prevents Acute Rejection in an Allogenic Model of Renal Transplantation
J. Guiteras¹, L. De Ramon¹, N. Bolaños¹, M. Franquesa², M. Gomà³, J. Cruzado⁴, N. Lloberas¹, J. Grinyó⁴, J. Torras⁴
¹IDIBELL, Hospitalet de Llobregat, Spain, ²IGTP, Badalona, Spain, ³Bellvitge Hospital, Hospitalet de Llobregat, Spain, ⁴Bellvitge Hospital / IDIBELL, Hospitalet de Llobregat, Spain
*Purpose: This study was designed to investigate the combination of CD40 silencing or MSC infusion with suboptimal doses of Cyclosporine in this renal allograft model.*Methods:…
2019 American Transplant Congress
Mitochondrial Permeability Regulates Heart Graft Ischemia – Reperfusion Injury and Rejection
A. Qamar¹, J. Jiang¹, X. Huang², P. McLeod², A. M. Jevnikar², Z. Zhang²
¹Pathology and Laboratory Medicine, University of Western Ontario, London, ON, Canada, ²London Health Sciences Centre, London, ON, Canada
*Purpose: A growing body of evidence indicates that mitochondrial permeability transition pore (mPTP) formation plays a crucial role in necroptosis - a programmed form of…
2019 American Transplant Congress
Characterization of Intra-Exosomal Cargoes of Circulating Donor Heart Specific Exosomes in Murine Heart Transplantation Model
J. Harmon, V. Korutla, L. Korutla, R. Hu, S. Rostami, A. Habertheuer, P. Zielinski, A. Freas, C. Ram, A. Naji, M. Davis, P. Vallabhajosyula
Department of Surgery, University of Pennsylvania, Philadelphia, PA
*Purpose: Exosomes are tissue specific, bilayered, membrane-bound nanoparticles released by many types of cells into bodily fluids including blood and urine. Exosomes carry protein and…
2019 American Transplant Congress
Evaluation of Envarsus XR in African American Kidney Transplant Recipients
L. R. Lineberger¹, E. Hollinger², N. Kenyon¹, M. Brokohf¹, N. Alvey¹
¹Pharmacy, Rush University Medical Center, Chicago, IL, ²Rush University Medical Center, Chicago, IL
*Purpose: This study is being conducted to evaluate the clinical impact of the utilization of tacrolimus LCP (TAC-LCP) compared to tacrolimus immediate release (TAC-IR) in…
2019 American Transplant Congress
Combined Pre-Transplant Anti-Donor T-Cell Sensitization with Single Nucleotid Polimorphisms (SNPs) for CYP3A4 Tacrolimus Metabolism Identifies Kidney Transplant Patients at High Risk of Allograft Rejection
E. Crespo¹, A. Vidal¹, A. Sefrin², P. Fontova¹, M. Stein², H. Volk², J. Grinyó³, P. Reinke², N. Lloberas¹, O. Bestard³
¹Experimental Nephrology Laboratory, IDIBELL, L'Hospitalet de Llobregat. Barcelona, Spain, ²Nephrology, Charité Campus Virchow-Klinikum, Berlin, Germany, ³Kidney Transplant Unit, Bellvitge University Hospital- IDIBELL, L'Hospitalet de Llobregat. Barcelona, Spain
*Purpose: Preformed donor-specific (d-sp) T-cell alloimmunity has been associated to high risk of acute rejection (BPAR). Since the individual susceptibility related to specific single nucleotide…
2019 American Transplant Congress
Thymoglobulin Versus Alemtuzumab Induction in High Immunologic Risk Kidney Transplants
J. Lockridge¹, J. Pryor¹, D. Norman¹, A. Olyaei²
¹OHSU, Portland, OR, ²Pharmacy, OHSU, Portland, OR
*Purpose: The optimal induction immunosuppressive therapy to prevent kidney transplant rejection remains controversial, specifically among high immunologic risk patients. Our aim was to compare the…
2019 American Transplant Congress
Role of Molecular Microscope in the Interpretation of Endarteritis and Acute Thrombotic Microangiopathy
M. Ciszek¹, A. Perkowska-Ptasińska¹, D. Deborska-Materkowska¹, A. Debska-Slizien², P. F. Halloran³, M. Myslak⁴
¹Warsaw Medical Univeristy, Warsaw, Poland, ²Gdansk Medical University, Gdansk, Poland, ³ATAGC, University of Alberta, Edmonton AB, AB, Canada, ⁴Pomeranian Medical University, Szczecin, Poland
*Purpose: According to the Banff classification, endarteritis (Figure 1A, case 1) may be a manifestation of either: TCMR and ABMR. Acute thrombotic microangiopathy (TMA) constitutes…
2019 American Transplant Congress
HLA-DR Upregulation in Pediatric Kidney Transplant Biopsies
O. Moussa, S. Self, E. Bruner, K. Twombley
Medical University of South Carolina, Charleston, SC
*Purpose: Renal tubular epithelial cells do not typically express human leukocyte antigen DR (HLA-DR). It’s expression has been associated with different types of tubular injury…