PMID- 23628396 OWN - NLM STAT- MEDLINE DCOM- 20140124 LR - 20130705 IS - 1879-1166 (Electronic) IS - 0198-8859 (Linking) VI - 74 IP - 8 DP - 2013 Aug TI - Anti-HLA-A, -B, -DR, -DQB1 and -DQA1 antibodies reactive epitope determination with HLAMatchmaker in multipare awaiting list for heart transplant. PG - 937-41 LID - S0198-8859(13)00119-5 [pii] LID - 10.1016/j.humimm.2013.04.033 [doi] AB - Human leukocyte antigen (HLA) antibodies represent a significant risk factor for transplant failure. It is very important to characterize anti-HLA antibodies as epitopes rather than antigens so that this knowledge can be applied clinically. The aim of the study was to investigate the extra reactivity patterns in sensitized multipare. Here, we have used the HLAMatchmaker program, a theoretical algorithm, to explain these unexpected antibody reactivity patterns in multipare awaiting for heart transplant. The patient was sensitized during pregnancy by alleles HLA-A(*)24:02, HLA-DRB1(*)07:01, HLA-DRB4(*)01:01, DQB1(*)02:02 and DQA1(*)02:01 mismatches with development of respective antibodies. However, the patient' sera were shown an unexpected reactivity not directed toward HLA mismatches of daughters: A( *)23:01, A(*)24:03 and B(*)15:12 for class I and DRB4(*)01:03, DRB1(*)09:02, DRB1(*)09:01, DQB1(*)03:01, DQB1(*)03:03, DQB1(*)03:02, DQB1(*)04:02, DQB1(*)04:01 and DQB1(*)02:01 for class II. By HLAMatchmaker analysis we found that these antibodies reacted with eplet shared by antigens in single allele Luminex panels. These eplets were: 62EE, 66GKH, 70KAH, 71HS, 127K, 113YH, 144KR, 150AAH, 151AHV, 163TG and 167DG for class I and 4Q, 74RRAE, 71RRA, 98KN, 120N, and 135G, 25FT, 34HE, 41ER, 47EK2, 48LF for class II. Thus, HLAMatchmaker software together with to solid phase techniques could open new horizons for a more precise characterization of the HLA-antibodies. CI - Copyright (c) 2013. Published by Elsevier Inc. FAU - Resse, Marianna AU - Resse M AD - U.O.C. Immunohematology, Transfusion Medicine and Transplant Immunology (SIMT), Regional Reference Laboratory of Transplant Immunology (LIT), Azienda Universitaria Policlinico (AOU), Second University of Naples, Italy. marianna.resse@unina2.it FAU - Paolillo, Rossella AU - Paolillo R FAU - Casamassimi, Amelia AU - Casamassimi A FAU - Cavalca, Francesco AU - Cavalca F FAU - Fiorito, Carmela AU - Fiorito C FAU - Maiello, Ciro AU - Maiello C FAU - Napoli, Claudio AU - Napoli C LA - eng PT - Case Reports PT - Journal Article DEP - 20130427 PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (Antibodies) RN - 0 (Epitopes) RN - 0 (HLA Antigens) SB - IM MH - Adult MH - Alleles MH - Antibodies/*immunology MH - Antibody Specificity/genetics/immunology MH - Epitopes/*immunology MH - Female MH - HLA Antigens/genetics/*immunology MH - *Heart Transplantation MH - Histocompatibility/genetics/immunology MH - *Histocompatibility Testing MH - Humans MH - Middle Aged OTO - NOTNLM OT - CDC OT - CDR OT - ELISA OT - HLA OT - MFI OT - PCR-SSP OT - PRA OT - SA OT - complement-dependent cytotoxicity crossmatch OT - complementary determining region OT - enzyme-linked immunosorbent assay OT - human leukocyte antigen OT - mean fluorescence intensity units OT - panel reactive antibody OT - polymerase chain reaction-sequence-specific primer OT - single antigens EDAT- 2013/05/01 06:00 MHDA- 2014/01/25 06:00 CRDT- 2013/05/01 06:00 PHST- 2012/10/24 00:00 [received] PHST- 2013/03/05 00:00 [revised] PHST- 2013/04/10 00:00 [accepted] PHST- 2013/05/01 06:00 [entrez] PHST- 2013/05/01 06:00 [pubmed] PHST- 2014/01/25 06:00 [medline] AID - S0198-8859(13)00119-5 [pii] AID - 10.1016/j.humimm.2013.04.033 [doi] PST - ppublish SO - Hum Immunol. 2013 Aug;74(8):937-41. doi: 10.1016/j.humimm.2013.04.033. Epub 2013 Apr 27.