title: Effect of major histocompatibility complex haplotype matching by C4 and MICA genotyping on acute graft versus host disease in unrelated hematopoietic stem cell transplantation.
abstract: We explored whether matching of human leukocyte antigen (HLA) haplotypes between the recipient and donor of hematopoietic stem cell transplantation (HSCT) predicted by C4 and MICA typing is associated with the incidence of acute graft versus host disease (aGVHD). DNA preparations collected from a total of 81 recipient and donor pairs were used for PCR-based C4 subtyping and/or MICA sequence-based typing. Incidences of aGVHD were compared according to C4 and MICA matching. The six most common MICA alleles were MICA*008:01, *010:01, *002:01, *004, *009:01/049, and *012:01. Among the 59 unrelated pairs, HLA alleles were matched in 34 (57.6%). C4 subtypes were identical between the recipient and donor in 28 (82.4%) HLA-matched unrelated pairs, while MICA genotypes were matched in all HLA-matched unrelated pairs. In the 22 HLA-matched related pairs, all recipients showed identical C4 subtypes with their respective donors. In multivariate analysis, C4 mismatch was a significant risk factor associated with the development of aGVHD in unrelated HSCT (hazard ratio=3.24, P=0.006). PCR-based C4 subtyping is a simple method for assessing the genetic identity of the HLA region between a recipient and unrelated donor. This test would be also useful for prediction of aGVHD in HSCT.
authors.affiliation: Department of Laboratory Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea.
authors.forename: Yongjung
authors.initials: Y
authors.lastname: Park
authors.affiliation: Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: June-Won
authors.initials: JW
authors.lastname: Cheong
authors.affiliation: Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Korea Organ Donation Agency Laboratory, Seoul, Republic of Korea.
authors.forename: Myoung Hee
authors.initials: MH
authors.lastname: Park
authors.affiliation: Division of Transplantation Surgery, Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Myoung Soo
authors.initials: MS
authors.lastname: Kim
authors.affiliation: Department of Microbiology, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Jong Sun
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: kimhs54@yuhs.ac.
authors.forename: Hyon-Suk
authors.initials: HS
authors.lastname: Kim
mesh_terms: D000208:Acute Disease; D000328:Adult; D003181:Complement C4 / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006086:Graft vs Host Disease / Q000235:genetics* / Q000276:immunology; D018380:Hematopoietic Stem Cell Transplantation; D006648:Histocompatibility / Q000235:genetics; D015395:Histocompatibility Antigens Class I / Q000235:genetics*; D006650:Histocompatibility Testing; D006801:Humans; D015810:Linkage Disequilibrium; D008297:Male; D011110:Polymorphism, Genetic; D055815:Young Adult
chemical_list: D003181:Complement C4; D015395:Histocompatibility Antigens Class I; C099187:MHC class I-related chain A
keywords: C4 gene; Graft versus host disease; Hematopoietic stem cell transplantation; Human leukocyte antigen; MHC class I polypeptide-related sequence A