Articles tagged "Gene expression"

2016 American Transplant Congress
Common Molecular Features of Human Kidney Transplant Rejection Reflect Mechanistic Sharing Between T Cell-Mediated and Antibody-Mediated Rejection.
J. Venner,^1,2 P. Halloran.²
¹University of Queensland, Brisbane, Australia; ²University of Australia, Edmonton, Canada.
We previously reported the molecular features of human kidney transplant biopsies with T cell-mediated rejection (TCMR) (Am J Transplant 14(11):2565-76) and antibody-mediated rejection (ABMR) (Am…
2016 American Transplant Congress
Antibody-Mediated Rejection Can Be Assessed by Histology When DSA Is Unknown or Negative.
J. Reeve,¹ P. Halloran.²
¹Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada; ²Department of Medicine, University of Alberta, Edmonton, AB, Canada.
Diagnosis of antibody-mediated rejection (ABMR) in kidney transplants currently requires the presence of donor-specific antibody (DSA) and histologic lesions above somewhat arbitrary cutoffs. DSA is…
2016 American Transplant Congress
Inclusion of Human Tissue Factor Pathway Inhibitor or Thrombomodulin Transgenes Attenuates Critical Consumptive Thrombocytopenia in Cardiac Xenotransplantation.
J. Chan,¹ A. Singh,¹ P. Corcoran,¹ M. Thomas III,² B. Lewis,² D. Ayares,³ K. Horvath,¹ M. Mohiuddin.¹
¹Cardiothoracic Surgery Research Program/National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD; ²Division of Veterinary Resources, National Institutes of Health, Bethesda, MD; ³Revivicor Inc., Blacksburg, VA.
ObjectiveA major obstacle in the success of cardiac xenotransplantation has been the development of significant consumptive thrombocytopenia, frequently limiting recipient survival. Advances in genetic engineering…
2016 American Transplant Congress
Many Discarded Kidneys Are Similar to Kidneys Accepted for Transplantation as Judged by Their Histologic Lesions and Molecular AKI Scores.
K. Famulski,¹ J. Reeve,¹ O. Aubert,² A. Loupy,² S. Niderhaus,³ J. Bromberg,³ P. Halloran.¹
¹University of Alberta, Edmonton, Canada; ²Necker Hospital, Paris, France; ³University of Maryland, Baltimore.
There is an increase in the number kidneys from older brain dead donors (DBD). Many are discarded based on conventional features (clinical or histology). Thus…
2016 American Transplant Congress
Bioinformatic Analysis of Pathways Mediating Clusterin Functions in Kidney Cells Under Normoxia and Hypoxia.
G. Dairi, Q. Guan, C. Collins, C. Ong, M. Gleave, C. Nguan, C. Du.
Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada.
Background: Clusterin (CLU) is a chaperone-like protein and contributes to the resistance of the kidney to ischemia-reperfusion injury (IRI), however its pathways are not fully…
2016 American Transplant Congress
RNAseq Transcriptome Analysis of Bone Marrow CD138⁺ Plasma Cell Responses to Carfilzomib Monotherapy Desensitization.
J. Driscoll, B. Aronow, S. Tremblay, R. Alloway, E. Woodle.
Medicine, Surgery, Biomedical Informatics, U of Cincinnati, Cincinnati Children's, Cincinnati, OH.
Purpose: Prior studies indicate that bone marrow resident plasma cells (BMRPCs) demonstrate varying sensitivity to proteasome inhibition (PI). Effects of carfilzomib (CFZ) monotherapy desensitization on…
2016 American Transplant Congress
Gene Expression Microarray Analysis of Purified CD16-Stimulated Human NK Cells and Indication Biopsies Supports a CD16-Mediated Role for NK Cells in Antibody-Mediated Kidney Rejection.
M. Parkes,¹ P. Halloran,¹ L. Hidalgo.²
¹Dept. of Medicine, University of Alberta, Edmonton, AB, Canada; ²Dept. of Laboratory Medicine & Pathology, University of Alberta, Edmonton, AB, Canada.
BACKGROUND: CD16α mediates NK cell responses to donor-specific IgG antibodies (DSA), and shares mechanisms with effector T cell receptor (TCR) stimulation. Whether CD16α-inducible transcripts are…
2016 American Transplant Congress
Ex Vivo Perfusion of Porcine Forelimbs to Prolong Allowable Ischemia Time.
N. Krezdorn,¹ M. Kueckelhaus,² A. Dermietzel,² M. Alhefzi,¹ M. Aycart,¹ S. Fischer,³ T.-S. Win,¹ H. Kiwanuka,¹ E. Bueno,¹ B. Pomahac.¹
¹Department of Surgery, Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston; ²Department of Plastic Surgery, Burn Center, Sarcoma Reference Center, BG University Hospital Bergmannsheil, Bochum, Germany; ³Department of Hand, Plastic and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen, Heidelberg, Germany.
PurposeSuccessful replantation in patients suffering from traumatic amputation of one or more extremities is limited by the muscle ischemia time of 4-6h, which also holds…
2016 American Transplant Congress
Ameliorating Progression of Allograft Vasculopathy by Targeting the T Follicular Helper Cell Subset.
M. Chhabra, J. Ali, J. Alsughayyir, S. Qureshi, J. Bradley, E. Bolton, R. Motallebzadeh, G. Pettigrew.
Department of Surgery, University of Cambridge, Cambridge, United Kingdom.
BACKGROUNDDevelopment of long-lived alloantibody is closely linked with chronic rejection and graft failure. We examined in a murine model of antibody-mediated rejection (AMR) if targeting…
2016 American Transplant Congress
Molecular Diagnosis of Antibody-Mediated Rejection in Routine Formalin-Fixed Paraffin-Embedded Nonhuman Primate Renal Allograft Biopsies.
B. Adam,¹ I. Rosales,² T. Oura,² R. Smith,² A. Cosimi,² T. Kawai,² R. Colvin,² M. Mengel.¹
¹University of Alberta, Edmonton, Canada; ²Harvard Medical School and Massachusetts General Hospital, Boston.
Background: In 2013, the Banff classification proposed molecular testing as an adjunct for the diagnosis of antibody-mediated rejection (ABMR) in renal allografts. We analyzed whether…