Prognostic impact of HLA supertype mismatch in single-unit cord blood transplantation.
Bone Marrow Transplant
; 59(4): 466-472, 2024 Apr.
Article
en En
| MEDLINE
| ID: mdl-38238452
ABSTRACT
The "human leukocyte antigen (HLA) supertype" is a functional classification of HLA alleles, which was defined by structural features and peptide specificities, and has been reportedly associated with the clinical outcomes of viral infections and autoimmune diseases. Although the disparity in each HLA locus was reported to have no clinical significance in single-unit cord blood transplantation (sCBT), the clinical significance of the HLA supertype in sCBT remains unknown. Therefore, we retrospectively analyzed clinical data of 1603 patients who received sCBT in eight institutes in Japan between 2000 and 2017. Each HLA allele was categorized into 19 supertypes, and the prognostic effect of disparities was then assessed. An HLA-B supertype mismatch was identified as a poor prognostic factor (PFS hazard ratio [HR] = 1.23, p = 0.00044) and was associated with a higher cumulative incidence (CI) of relapse (HR = 1.24, p = 0.013). However, an HLA-B supertype mismatch was not associated with the CI of acute and chronic graft-versus-host-disease. The multivariate analysis for relapse and PFS showed the significance of an HLA-B supertype mismatch independent of allelic mismatches, and other previously reported prognostic factors. HLA-B supertype-matched grafts should be selected in sCBT.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trasplante de Células Madre de Sangre del Cordón Umbilical
/
Enfermedad Injerto contra Huésped
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Bone Marrow Transplant
Asunto de la revista:
TRANSPLANTE
Año:
2024
Tipo del documento:
Article
País de afiliación:
Japón