Articles tagged "Antibodies"

2019 American Transplant Congress
Proteomics Reveals Compartment-Specific Alterations in the Extracellular Matrix of Kidney Allografts with Antibody-Mediated Rejection
S. Clotet Freixas¹, C. McEvoy¹, I. Batruch², M. Kotlyar³, C. Pastrello³, J. Van¹, A. Bozovic¹, V. Kulasingam¹, P. Chen⁴, I. Jurisica³, A. Chruscinski¹, R. John¹, A. Konvalinka¹
¹University Health Network, Toronto, ON, Canada, ²Lunenfeld-Tanenbaum Research Institute, Toronto, ON, Canada, ³Krembil Research Institute, Toronto, ON, Canada, ⁴Institute of Medical Science, University of Toronto, Toronto, ON, Canada
*Purpose: Antibody-mediated rejection (AMR) is the most important cause of premature kidney graft loss. AMR is caused by anti-HLA and non-HLA antibodies against proteins in…
2019 American Transplant Congress
The Impact of Calcineurin Inhibitors on De Novo DSA in Primary Kidney Transplantation
T. Hiramitsu, T. Tomosugi, K. Futamura, M. Okada, M. Tsujita, T. Ichimori, N. Goto, S. Narumi, Y. Watarai
Nagoya Daini Red Cross Hospital, Nagoya Aichi, Japan
*Purpose: De novo DSA was demonstrated as a cause of chronic AMR, leading to worse graft survival. New strategies to treat chronic AMR have been…
2019 American Transplant Congress
The Response to Human Papillomavirus Vaccination in Pediatric Patients before and after Kidney Transplantation
C. Nailescu¹, R. D. Nelson², K. Twombley³, P. S. Verghese⁴, A. S. Chishti⁵, M. Mills⁶, J. E. Slaven⁷, J. D. Mahan⁸, M. L. Shew¹
¹Riley Hospital for Children, Indianapolis, IN, ²Primary Children’s Hospital, Salt Lake City, UT, ³MUSC Children’s Hospital, Charleston, SC, ⁴Children’s Hospitals and Clinics of Minnesota, Minneapolis, MN, ⁵Kentucky Children’s Hospital, Lexington, KY, ⁶C.S. Mott Children’s Hospital, Ann Arbor, MI, ⁷Indiana University, Indianapolis, IN, ⁸Nationwide Children’s Hospital, Columbus, OH
*Purpose: Kidney transplant (KT) recipients have an increased incidence of malignancies, including Human Papillomavirus (HPV)-associated cancers. Thus, HPV vaccines may have an important role in…
2019 American Transplant Congress
A Step-Wise Desensitization Using Rituximab&Bortezomib Combined with Antithymocyte Globulin for Highly Sensitized Kidney Transplant Candidates
H. Ohdan, K. Ide, M. Ohira, H. Tahara, Y. Tanaka
Hiroshima University, Hiroshima, Japan
*Purpose: In highly HLA sensitized patients, both memory B and T cells responding to donor-specific HLA in addition to plasma cells secreting anti-HLA Abs are…
2019 American Transplant Congress
Anti CD45RB Antibody Therapy Attenuates Renal Ischemia Reperfusion Injury by Inducing Regulatory B Cells
S. Lee¹, S. Park¹, J. Hwang¹, J. Ryu², T. Koo², C. Ahn², J. Yang³
¹Biomedical Research Institute, Transplantation Center, Seoul National University Hospital, Seoul, Korea, Republic of, ²Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea, Republic of, ³Department of surgery, Seoul National University Hospital, Seoul, Korea, Republic of
*Purpose: Regulatory B cells (Bregs) are a new B cell subset that suppresses immune responses. Recently, both anti-CD45RB and anti-Tim-1 treatments have been found to…
2019 American Transplant Congress
Monitoring Circulating T Follicular Helper Cells Polarization, Activation and Function Distinguishes Asymptomatic Donor-Specific Anti-HLA Antibody Positive Kidney Transplant Recipients from Those Undergoing Antibody-Mediated Rejection
C. Macedo¹, K. Louis¹, P. Fadakar², M. Yamada², B. Elinoff¹, K. Hadi¹, P. Randhawa¹, D. Metes¹
¹Starzl Transplantation Institute, Pittsburgh, PA, ²Children's Hospital of Pittsburgh, Pittsburgh, PA
*Purpose: Donor-specific anti-HLA antibodies (DSA) represent an important biomarker for acute rejection and are a major cause of long-term graft failure after kidney transplantation (KTx).…
2019 American Transplant Congress
Use of mTOR Inhibitors in Hypersensitized Kidney Transplant Recipients: Breaking False Myths
D. Cucchiari¹, A. Molina-Andujar¹, E. Montagud-Marrahi¹, F. J. Centellas-Pérez², I. Revuelta¹, F. Oppenheimer¹, F. Diekmann¹
¹Renal Transplant Unit, Hospital Clínic, Barcelona, Spain, ²Complejo Hospitalario Universitario, Albacete, Spain
*Purpose: Many centers avoid the use of mTOR inhibitors (mTORi) in hypersensitized kidney transplant recipients and usually employ an immunosuppression based on Mycophenolic Acid (MPA),…
2019 American Transplant Congress
Development of De Novo Antibody in Renal Transplant Recipients with BK Viremia Managed with Immunosuppression Reduction
M. Raijmakers¹, A. Shetty², R. Hod Dvorai², A. Tambur², M. G. Ison²
¹University of Santiago, Santiago, Chile, ²Northwestern University Comprehensive Transplant Center, Chicago, IL
*Purpose: To determine the development of de novodonor specific antibodies (DSA) in renal transplant recipients with immunosuppression modulation and BK viremia and the associated risk…
2019 American Transplant Congress
Variable Glycosylations of Anti-HLA Antibodies Detected with Single Antigen Beads in Kidney Transplant Recipients
Y. Chang¹, N. Lemp², J. Cicciarelli¹, T. Shah³, D. Min⁴
¹Mendez National Institute of Transplantation Foundation, Los Angeles, CA, ²Transplantation Research, Mendez National Institute of Transplantation Foundation, Los Angeles, CA, ³St. Vincent Medical Center, Los Angeles, CA, ⁴Western Univ of Health Sciences, Pomona, CA
*Purpose: Differential glycosylation of Immunoglobulin G (IgG) is known to affect its effector functions by modulating interactions with its binding partners, such as C1q or…
2019 American Transplant Congress
Low Frequency Of Canonical Human Leukocyte Antigen Alloimmunization In Heart Transplantation Candidates With Ventricular Assist Devices
G. K. Mahowald¹, S. L. Saidman¹, G. Lewis², V. Pattanayak¹
¹Pathology, Massachusetts General Hospital, Boston, MA, ²Cardiology, Massachusetts General Hospital, Boston, MA
*Purpose: Screening for anti-HLA antibodies in heart transplantation candidates is complicated by transfusions as well as by the presence of ventricular assist devices (VADs), which…