Articles tagged "Antibodies"

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…
2019 American Transplant Congress
Consideration for Offering Hepatitis C Antibody Positive Donor Grafts to All Patients Listed for Transplant
L. Smith
Vanderbilt Transplant Center, Nashville, TN
*Purpose: Background: The field of organ transplantation continuously struggles with inadequate numbers of donor organs. Therefore, efforts remain focused on increasing organ utilization and expanding…
2019 American Transplant Congress
Difference in DSA Formation between Tacrolimus-XR and Tacrolimus-IR
J. Hagopian¹, C. Carthon¹, S. January¹, A. Gharabagi², R. Delos Santos³, T. Horwedel⁴
¹Barnes-Jewish Hospital, Saint Louis, MO, ²St. Louis College of Pharmacy, Saint Louis, MO, ³Washington University, Saint Louis, MO, ⁴Veloxis Pharmaceuticals, Inc., Cary, NC
*Purpose: Donor specific antibodies (DSA), whether pre-formed or developed de novo after kidney transplantation, have been associated with acute and chronic antibody mediated rejection, transplant…
2019 American Transplant Congress
Absence of Antibodies in Human Neonates and Infants to Gtko/cmahko/β4galnt2ko (Triple Gene Knockout) Pig Cells: Relevance to Cardiac Xenotransplantation for Complex Congenital Heart Disease
H. Hara¹, Q. Li¹, C. A. Banks¹, T. Yamamoto¹, D. Ayares², D. C. Cleveland¹, D. K. Cooper¹
¹Surgery, University of Alabama at Birmingham, Birmingham, AL, ²Revivicor Inc., Blacksburg, VA
*Purpose: Heart transplantation (Tx) in neonates is associated with the best results of any organ Tx, but the lack of deceased human donor hearts in…
2019 American Transplant Congress
Tolerance to ABO A-Antigen Following Treatment of Infant Mice with A-Expressing MHC-Identical Erythrocytes
B. Motyka¹, J. Fersovich¹, M. Sulzer¹, I. Adam¹, J. Pearcey¹, K. Tao¹, C. W. Cairo², P. J. Cowan³, L. J. West¹
¹Dept Pediatrics, Alberta Transplant Institute, Canadian Donation and Transplant Research Program, University of Alberta, Edmonton, AB, Canada, ²Department of Chemistry, University of Alberta, Edmonton, AB, Canada, ³Immunology Research Centre, St Vincent's Hospital, Melbourne, Australia
*Purpose: ABO-incompatible heart transplantation (ABOi HTx) is safe in young children and increases donor access. Post-ABOi HTx, B cell tolerance develops to donor ABO blood…