Does minor histocompatibility antigen HA-1 disparity affect the occurrence of graft-versus-host disease in tunisian recipients of hematopoietic stem cells?
Clinics
; 65(11): 1099-1103, 2010. tab
Article
in En
| LILACS
| ID: lil-571423
Responsible library:
BR1.1
ABSTRACT
INTRODUCTION:
Minor histocompatibility antigen HA-1 (MiHAg-HA-1) disparity between a patient and his or her human leukocyte antigen (HLA) genoidentical donor has been widely associated with an increased risk of graft-versus-host disease following allogeneic hematopoietic stem cell transplantation.OBJECTIVE:
To examine the effect of HA-1 disparity on the incidence of both acute and chronic graft-versus-host disease in Tunisian recipients of hematopoietic stem cells.METHODS:
A total of 60 patients and their 60 respective sibling hematopoietic stem cell donors were enrolled in this study. All patients prophylactically received cyclosporine A and/or methotrexate for graft-versus-host disease. An HA-1 genotyping assay was performed with the SSP-PCR method, and HLA-A*0201- and/or HLA-A*0206-positive samples were identified using the Luminex HLA typing method.RESULTS:
The Luminex HLA typing assay showed that 54 patients were positive for either the HLA-A*0201 or HLA-A*0206 alleles. Among these cases, six pairs were mismatched for MiHAg-HA-1. Both acute and chronic graft-versus-host disease occurred in four mismatched patients (Fisher's p-values were 0.044 and 0.170, respectively). A univariate logistic regression model analysis showed that only acute graft-versus-host disease may be affected by recipient MiHAg-HA-1 disparity (p 0.041, OR 6.727), while chronic graft-versus-host disease correlates with both age and recipient/donor sex mismatch (p 0.014, OR 8.556 and p 0.033, OR 8.664, respectively).CONCLUSION:
Our findings support previously reported data suggesting a significant association between HA-1 disparity and the risk of acute graft-versus-host disease following hematopoietic stem cell transplantation.Key words
Full text:
1
Index:
LILACS
Main subject:
Oligopeptides
/
Minor Histocompatibility Antigens
/
Hematopoietic Stem Cell Transplantation
/
Graft vs Host Disease
/
HLA Antigens
Type of study:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Country/Region as subject:
Africa
Language:
En
Journal:
Clinics
Journal subject:
MEDICINA
Year:
2010
Type:
Article