Articles tagged "Epitopes"

2021 American Transplant Congress
Hla-dq Epitope Mismatch Predicts De Novo Donor-Specific Antibody Formation and Acute Cellular Rejection After Living Donor Liver Transplantation
K. Ono, K. Ide, Y. Tanaka, M. Ohira, H. Tahara, N. Tanimine, S. Akimoto, Y. Imaoka, K. Sato, H. Yamane, N. Tsukiyama, R. Ide, T. Mochizuki, H. Ohdan
Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health S, Hiroshima University, Hiroshima City, Japan
*Purpose: Epitope mismatch (MM) effect on living donor liver transplantation (LDLT) has not been studied in detail. This study aimed to investigate the role of…
2021 American Transplant Congress
Is Equitable Access to Transplantation Possible in the Era of HLA Epitope Compatibility?
S. Parto¹, J. Lamsatfi², B. Liu², A. Bourdiec², B. Foster², K. Oualkacha², F. Claas³, P. Keown⁴, R. Sapir-Pichhadze⁵
¹Medicine, McGill University, Montreal, QC, Canada, ²McGill University, Montreal, QC, Canada, ³Leiden University Medical Centre, Albinusdreef, Netherlands, ⁴University of British Columbia, Vancouver, BC, Canada, ⁵Medicine, McGill University Health Centre, Montreal, QC, Canada
*Purpose: We applied the calculated Panel of Incompatible Epitopes (cPIE), an algorithm informing on the likelihood of identifying blood group and eplet-compatible donors, to study…
2021 American Transplant Congress
Non-HLA Antibodies and Eplet Mismatches in Cases with Histological Picture of Antibody-Mediated Rejection with and without HLA Donor-Specific Antibodies
M. Crespo¹, L. Llinás², D. Redondo², C. Butler³, J. Gimeno⁴, M. Pérez-Sáez², A. Buxeda², C. Arias², M. Folgueiras², S. Sanz², N. Valenzuela³, E. E. Reed³, J. Pascual²
¹Nephrology and Kidney Transplantation, Hospital del Mar, Barcelona, Spain, ²Nephrology, Hospital del Mar, Barcelona, Spain, ³UCLA Immunogenetics Center, UCLA, Los Angeles, CA, ⁴Pathology, Hospital del Mar, Barcelona, Spain
*Purpose: Correlation between antibody-mediated rejection (ABMR) and HLA donor-specific antibodies (DSA) is strong but imperfect in kidney transplant (KT) recipients, raising the possibility of other…
2021 American Transplant Congress
hlaR,” a Simplified Interface for the HLA Matchmaker Tool
A. Johnson¹, J. Zhang¹, H. Gebel², C. Larsen¹
¹Surgery, Emory University, Atlanta, GA, ²Pathology, Emory University, Atlanta, GA
*Purpose: Functional epitopes, or eplets, represent a set of amino acids within three angstroms of one another that may not be sequentially contiguous but are…
2021 American Transplant Congress
The Calculated Panel of Incompatible Epitopes (cPIE) in the Service of Equitable Access to Transplantation
J. Lamsatfi¹, B. Bingfan Liu¹, S. Parto², A. Lewin³, K. Oualkacha¹, F. Claas⁴, P. Keown⁵, R. Sapir-Pichhadze⁶
¹McGill University, Montreal, QC, Canada, ²McGill University Health Centre, Montreal, QC, Canada, ³Hema-Quebec, Montreal, QC, Canada, ⁴Leiden University Medical Centre, Albinusdreef, Netherlands, ⁵University of British Columbia, Vancouver, BC, Canada, ⁶Medicine, McGill University Health Centre, Montreal, QC, Canada
*Purpose: To inform on feasibility of eplet matching, we developed the calculated Panel of Incompatible Epitopes (cPIE), an algorithm informing on the likelihood of identifying…
2020 American Transplant Congress
Molecular Features of HLA Mismatches as Predictors of De Novo DSA Development: A Single Center Experience
V. Jucaud¹, L. Rebellato², K. Briley², C. Haisch², S. Kendrick³, H. Jones³, K. Mclawhorn³, D. Leeser², M. Everly¹
¹Terasaki Research Institute, Los Angeles, CA, ²East Carolina University, Greenville, NC, ³Eastern Nephrology Associates, Greenville, NC
*Purpose: Several molecular features (MoFs) of HLA mismatches (MMs) are currently used to predict the development of de novo donor-specific anti-HLA antibodies (dnDSA). The purpose…
2020 American Transplant Congress
Predictability of Eplet Mismatch to Acute Rejection in Low Level HLA Antigen Mismatched Kidney Transplantation: Analysis of Korean Organ Transplantation Registry (KOTRY) Data
J. Jeong¹, Y. Hong¹, Y. Park², I. Park³, J. Park⁴, D. Chae⁵, J. Yang⁶, C. Ahn⁵, B. G. Park⁷
¹Seoul National University Bundang Hospital, Seongnam, Korea, Republic of, ²Gachon University, Incheon, Korea, Republic of, ³Ajou University School of Medicine, Suwon, Korea, Republic of, ⁴Sungkyunkwan University School of Medicine, Seoul, Korea, Republic of, ⁵Seoul National University College of Medicine, Seoul, Korea, Republic of, ⁶Seoul National University Hospital, Seoul, Korea, Republic of, ⁷Korea University Guro Hospital, Seoul, Korea, Republic of
*Purpose: Epitope matching has been shown to better predict allograft survival and development of de novo donor specific antibodies. In previous study, the number of…
2020 American Transplant Congress
Low HLA Class I Epitope Mismatch Associated with Improved Pancreas Graft Survival in Simultaneous Pancreas-Kidney Transplantation
J. M. Ladowski, M. Romine, D. Kloda, C. Young, J. Locke, V. Hauptfeld-Dolejsek, J. Houp
University of Alabama-Birmingham, Birmingham, AL
*Purpose: Antibody-mediated rejection remains the principal cause of allotransplant graft failure. Human leukocyte antigen (HLA) matching between donor and recipients significantly reduces the risk of…
2020 American Transplant Congress
HLA Molecular Mismatch Analysis in Recipients of Kidney Plus Hematopoietic Stem/Facilitating Cell Transplant Tolerance Induction Protocol
C. Garcia-Sanchez¹, V. Kosmoliaptsis², H. Copley², J. Leventhal¹, S. Ildstad³
¹NU, Chicago, IL, ²Cambridge, Cambridge, United Kingdom, ³U of Louisville, Lousville, KY
*Purpose: To evaluate the potential role of HLA molecular mismatch (MM) analysis in predicting outcomes in a cohort of HLA-mismatched, related and unrelated recipients of…
2020 American Transplant Congress
HLA-DR/DQ Molecular Mismatch Dictates Early Risk of De Novo Donor-Specific Antibody Development and Offers a Personalized Approach to Immunosuppression Management in Kidney Transplantation
S. Davis¹, C. Wiebe², K. Campbell¹, C. Anobile³, M. Aubrey³, A. Wiseman¹, E. Pomfret¹, P. Nickerson², J. Cooper¹
¹University of Colorado, Aurora, CO, ²University of Manitoba, Winnipeg, MB, Canada, ³Clinimmune, Aurora, CO
*Purpose: Clinicians have few tools to predict the risk of alloimmune injury in a patient undergoing renal transplantation, as traditional demographic or clinical variables lack…