Articles tagged "Antibodies"

2020 American Transplant Congress
Intimal Arteritis in Association with Microvascular Inflammation Leads to Inferior Graft Survival Regardless DSA
M. Novotny¹, E. Honsova², O. Viklicky¹
¹Nephrology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic, ²Department of Clinical and Transplant Pathology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
*Purpose: Intimal arteritis belongs between diagnostic criteria of both antibody-mediated rejection (AMR) and T cell-mediated vascular rejection (TCMRV). Patients with intimal arteritis must be assessed…
2020 American Transplant Congress
Antibodies to Vascular Autoantigens Are Associated with Poor Long-Term Survival of Liver Re-Transplant
Q. Xu¹, V. C. McAlister², S. Leckie², A. A. House², A. Zeevi¹
¹Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, ²Multiorgan Transplant Program, London Health Sciences Centre, London, ON, Canada
*Purpose: Autoantibodies, which may be generated in transplantation through the exposure of cryptic antigens, are reported to be detrimental for allograft survival. We have demonstrated…
2020 American Transplant Congress
7-Years Retrospective Cohort of CNI to Belatacept Conversion
A. Morel¹, C. Dudreuilh¹, A. Moktefi², D. Kheav³, D. Mokrani¹, K. El Sakhawi¹, C. Champy⁴, P. Rémy¹, P. Grimbert¹, M. Matignon¹
¹Nephrology, APHP Henri Mondor, Créteil, France, ²Anatomopathology, APHP Henri Mondor, Créteil, France, ³Immunology, APHP Saint Louis, Paris, France, ⁴Urology, APHP Henri Mondor, Créteil, France
*Purpose: Analyze the long-term evolution after calcineurin inhibitors (CNIs) to Belatacept conversion in kidney allograft recipients.*Methods: In this single-center retrospective study, we collected all patients…
2020 American Transplant Congress
The Frequency of De Novo DSA in the Years Following Heart Transplantation
A. Shen, J. Patel, M. Kittleson, D. Chang, E. Kransdorf, D. Geft, K. Nishihara, L. Czer, F. Esmailian, J. A. Kobashigawa
Cedars-Sinai Smidt Heart Institute, Los Angeles, CA
*Purpose: The timing of the development of donor specific antibody (DSA) after heart transplantation is not clear. De novo DSA has been reported to be…
2020 American Transplant Congress
Characterization of Non HLA Antibodies in Kidney Transplant Recipients
S. Rodriguez Ramirez¹, S. Clotet-Freixas¹, C. Mcevoy¹, M. Kotlyar², I. Jurisica², A. Chruscinski¹, A. Konvalinka³
¹Kidney Transplant, Toronto General Hospital Research Institute, Multi-Organ Transplant Program, University Health Network, Toronto, ON, Canada, ²Kidney Transplant, Krembil Research Institute, University Health Network, Toronto, ON, Canada, ³Kidney Transplant, Department of Medicine, Division of Nephrology, University Health Network, Toronto, ON, Canada
*Purpose: Antibody mediated rejection (AMR) causes more than 60 percent of late graft failures in kidney transplants (KT). Although antiHLA donor specific antibodies are the…
2020 American Transplant Congress
The Banff Classification of Antibody-Mediated Rejection in Kidney Allografts: Comparison of Predictive Performance for Allograft Failure in Previous and Current Editions
J. Callemeyn¹, H. Ameye¹, M. Coemans¹, A. Senev², E. Lerut³, B. Sprangers¹, D. Kuypers¹, M. Emonds², M. Naesens¹
¹Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium, ²Histocompatibility and Immunogenetics Laboratory, Red Cross-Flanders, Mechelen, Belgium, ³Imaging and Pathology, KU Leuven, Leuven, Belgium
*Purpose: Since its introduction in 2001, the Banff classification for antibody-mediated rejection (ABMR) has undergone significant changes, mainly by inclusion of C4d-negative ABMR in 2013…
2020 American Transplant Congress
Safety and Immunogenicity of Adjuvanted Recombinant Subunit Herpes Zoster Vaccine in Lung Transplant Recipients
C. Hirzel¹, V. H. Ferreira¹, A. G. L’Huillier¹, T. Ku¹, M. Ierullo¹, C. Miao², D. S. Schmid², J. Tikkanen¹, L. G. Singer¹, A. Humar¹, D. Kumar¹
¹University Health Network, Toronto, ON, Canada, ²CDC, Atlanta, GA
*Purpose: The new adjuvanted subunit recombinant herpes zoster vaccine (RZV; Shingrix™) may have potential utility in transplant patients for the prevention of shingles, but there…
2020 American Transplant Congress
Preoperative Antibody Titer Against BK Polyomavirus May Predict BK Polyomavirus-Associated Nephropathy after Kidney Transplantation
M. Saito, S. Satoh, K. Numakura, R. Sagehashi, R. Yamamoto, A. Koizumi, T. Nara, S. Narita, T. Habuchi
Urology, Akita University Hospital, Akita, Japan
*Purpose: BK polyomavirus (BKPyV) is a causative agent of BKPyV-associated nephropathy (BKPyV-AN) and hemorrhagic cystitis, which occurs subsequent to BKPyV reactivation. Intravenous immunoglobulin is presumed…
2020 American Transplant Congress
The Role of Complement-Split Products as Biomarkers for Acute Antibody-Mediated Rejection of Kidney Allografts
B. G. Abu Jawdeh¹, B. Campos-Naciff¹, K. Harrison¹, K. Meganathan¹, A. Kumar², M. Anand¹, A. Govil¹, E. S. Woodle¹, B. P. Dixon³
¹University of Cincinnati, Cincinnati, OH, ²All India Institute of Medical Sciences, New Delhi, India, ³University of Colorado, Aurora, CO
*Purpose: Acute antibody-mediated rejection (AMR) is mediated by the activation of the classical complement system in addition to non-complement dependent inflammatory pathways. Complement fixation by…
2020 American Transplant Congress
Sex and ABO Antibodies: High-Level Natural ABO Antibody Production and IgM to IgG Class Switch in Female vs. Male Mice
B. Anjum, B. Motyka, I. Adam, J. Fersovich, M. Sulzer, J. Pearcey, K. Tao, L. J. West
Dept Pediatrics, Alberta Transplant Institute, University of Alberta, Edmonton, AB, Canada
*Purpose: ABO histo-blood group incompatibility is a barrier in solid organ transplant due to the presence of ‘natural’ preformed ABO antibodies. However, ABO-incompatible (ABOi) heart…