Clinical evaluation of a substitute of HLA-B*58:01 in different Chinese ethnic groups

Abstract The goal of this research was to investigate the linkage disequilibrium between rs9263726 and HLA-B*58:01 in different Chinese ethnic groups (Han, Tibet, and Hui) and to study the feasibility of rs9263726 replacing HLA-B*58:01 as an efficient indicator of potential allopurinol hypersensitivity syndrome. In this study, rs9263726 and HLA-B*58:01 were detected in all samples. For samples of individuals whose rs9263726 genotypes were not consistent with HLA-B*58:01, we did high-resolution typing of HLA-B gene to further confirm the correlation of rs9263726 genotype and special HLA-B alleles. We confirmed that the linkage disequilibrium between rs9263726 and HLA-B*58:01 was more significant in the Han ethnic group (r2=0.886, D’=1.0) than in the Tibet and Hui ethnic groups (for Tibetan, r2=0.606, D’=0.866; for Hui, r2=0.622, D’=0.924). For Han Chinese, samples with the GG genotype of rs9263726 did not carry HLA-B*58:01, while AA genotype samples were homozygous carriers of HLA-B*58:01. However, GA genotype samples of rs9263726 required a more sophisticated HLA-B genotyping assay before it was possible to identify whether they were HLA-B*58:01 carriers or not. For Tibetan and Hui, the linkage disequilibrium between rs9263726 and HLA-B*58:01 was not significant. Therefore, rs9263726 cannot replace HLA-B*58:01 in these two groups.

Detalles Bibliográficos

Autores principales:	Zhang,Xinju, Jin,Lei, Wu,Zhiyuan, Ma,Weizhe, Chen,Yuming, Chen,Gang, Wang,Lixin, Guan,Ming
Formato:	Digital revista
Idioma:	English
Publicado:	Sociedade Brasileira de Genética 2018
Acceso en línea:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000400578
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!