Articles tagged "Epstein-Barr virus (EBV)"

2019 American Transplant Congress
Regulation of Host microRNA Expression by Natural Variants of Epstein Barr Virus (EBV) Latent Membrane Protein 1 (LMP1)
O. Hatton¹, A. Harris-Arnold², A. Hui², E. Maloney², S. M. Krams², O. M. Martinez²
¹Molecular Biology, Colorado College, Colorado Springs, CO, ²Program in Immunology and Department of Surgery, Stanford University, Stanford, CA
*Purpose: Malignancies attributable to EBV, such as post-transplant lymphoproliferative disorder (PTLD), represent 1.8% of global cancer deaths. PTLD occurs in 1-20% of transplant recipients and…
2019 American Transplant Congress
Mass Cytometry-Based Characterization of Adaptive Immunity in Transplant Recipients with Self-Limiting or Chronic EBV Viremia
V. H. Ferreira¹, C. J. Guidos², A. Humar¹, D. Kumar¹
¹UHN, Toronto, ON, Canada, ²SickKids Research Inst, Toronto, ON, Canada
*Purpose: SOT recipients are at high risk for EBV-associated PTLD. EBV viremia is a risk factor for PTLD. In some patients viremia is self-limited while…
2019 American Transplant Congress
Ex-Vivo Perfusion Mediated Delivery of Rituximab to Clear Latent Epstein-Barr Virus
T. Ku, M. Cypel, R. V. Ribeiro, V. H. Ferreira, D. Kumar, A. Humar
UHN, Toronto, ON, Canada
*Purpose: Post-transplant lymphoproliferative disorder (PTLD) can manifest as a B-cell malignancy associated with Epstein-Barr virus (EBV) infection. Risk of PTLD is greatest in EBV D+/R-…
2019 American Transplant Congress
Impact of Cytomegalovirus on the Immune System of Healthy Humans
W. Zhang, J. Robertson, G. Karadkhele, B. Johnson, C. Larsen
Emory Transplant Center, Emory University, Atlanta, GA
*Purpose: CMV is a frequent pathogen after transplantation. 2/3 of recipients harbor latent CMV and are at moderate risk. CMV- recipients divide into high or…
2019 American Transplant Congress
Antithymocyte Globulin is Associated with Mature T Cell Phenotypes and Decreased Risk of Non-EBV Infections in Transplanted Children
B. I. Shaw¹, L. Stempora¹, C. Chan¹, R. B. Ettenger², P. C. Grimm³, H. Lee¹, E. F. Reed², M. M. Sarwal⁴, B. L. Warshaw⁵, C. Zhao¹, O. M. Martinez³, A. D. Kirk¹, E. T. Chambers¹
¹Pediatrics/Surgery, Duke University, Durham, NC, ²Pediatrics, University of California, Los Angeles, Los Angeles, CA, ³Pediatrics/Surgery, Stanford University, Palo Alto, CA, ⁴Pediatrics/Surgery, University of California, San Francisco, San Francisco, CA, ⁵Pediatrics, Emory University, Atlanta, GA
*Purpose: Depletional induction therapies are known to reduce the rate of acute rejection; yet data from the US Renal Data System have shown that use…
2019 American Transplant Congress
Phylogenetic Analysis of the Epstein Barr Virus Nuclear Antigen-1 and Associated Correlates among Canadian Transplant Patients
M. Abdulnoor¹, S. Isabel¹, T. Paton¹, N. Khodai-Booran¹, T. Schechter¹, P. Birk², T. Blydt-Hansen³, B. Foster⁴, S. Mital¹, V. Phan⁵, S. Urschel⁶, G. Casallo¹, T. Papaz¹, L. Hamiwka⁷, S. Min¹, U. Allen¹
¹University of Toronto, Toronto, ON, Canada, ²University of Manitoba, Winnipeg, MB, Canada, ³University of British Columbia, Vancouver, BC, Canada, ⁴McGill University, Montreal, QC, Canada, ⁵University of Montreal, Montreal, QC, Canada, ⁶University of Alberta, Edmonton, AB, Canada, ⁷University of Calgary, Calgary, AB, Canada
*Purpose: The effect of the genetic diversity of the Epstein-Barr virus (EBV) on clinical outcomes in the transplant setting is important to study. We examined…
2019 American Transplant Congress
Anti-ebv Antibody (ebv-ab) And Ebv-specific Cytotoxic T Cell (ebv-tc) Positivity Are Essential To Control Viremia In Seronegative (sero[-]) Pediatric Kidney Transplant Recipients (ped Ktx Pts).
B. Shin, H. Pizzo, D. Puliyanda, A. Petrosyan, D. Lovato, S. C. Jordan, M. Toyoda
Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: EBV infection represents a significant morbidity factor in KTx Pts, especially EBV sero(-) Ped as infections tend to be more severe and recurrent, increasing…
2019 American Transplant Congress
Quantitative Epstein-Barr Virus Viral Load Monitoring in Pediatric Kidney Transplantation
C. Metran¹, M. E. Araujo¹, R. Cardoso¹, G. Araujo¹, T. De Paula¹, L. Cristofani², F. Penteado³, M. F. Pereira³, A. Watanabe¹
¹Pediatric Nephrology, ICr HC FMUSP, São Paulo, Brazil, ²Pediatric Oncology, ICr HC FMUSP, São Paulo, Brazil, ³Pediatric Infectology, ICr HC FMUSP, São Paulo, Brazil
*Purpose: Epstein Barr virus (EBV) belongs to the family of herpesvirus and is associated with a wide range of malignancies, including post-transplant lymphoproliferative disorder (PTLD).…
2019 American Transplant Congress
Post-Transplant Lymphoproliferative Disorders in Pediatric Renal Transplant Recipients: Case Series of 5 Patients
M. E. Araujo¹, C. Metran¹, R. Cardoso¹, G. Araujo¹, T. De Paula¹, L. Cristofani², M. F. Pereira³, D. David⁴, A. Watanabe¹
¹Pediatric Nephrology, ICr HC FMUSP, São Paulo, Brazil, ²Pediatric Oncology, ICr HC FMUSP, São Paulo, Brazil, ³Pediatric Infectology, ICr HC FMUSP, São Paulo, Brazil, ⁴Anatomopathology, HC FMUSP, São Paulo, Brazil
*Purpose: Post-transplant Lymphoproliferative Disorders (PTLD) after solid organ transplantation is a complication of chronic immunosuppression (IS) and is generally associated with Epstein Barr virus (EBV)…
2019 American Transplant Congress
EBV⁺ PTLD Cell Lines Secrete Exosomes Containing microRNAs That Alter Immune Responses
S. Syed, E. Maloney, A. Hui, O. Martinez, S. Krams
Stanford Univ School of Med, Stanford, CA
*Purpose: Exosomes are nanometric (50-150nm) membrane vesicles that are released, into blood and other body fluids, by most cell types. Exosomes, which are generated from…