作者: Clarissa Consolandi , Andrea Frosini , Cinzia Pera , Gian Battista Ferrara , Roberta Bordoni
DOI: 10.1002/HUMU.20098
关键词:
摘要: Human leukocyte antigen (HLA) class I genes present some of the most complex single nucleotide polymorphism (SNP) patterns in human genome. HLA typing is therefore extremely challenging. In this article, we use ligation detection reaction (LDR) combined with a universal array (UA) as robust and efficient method to analyze SNPs within HLA-A region that includes alleles interest for immunotherapy tumor diseases. The LDR, UA platform, has been optimized 27 distributed exons 2 3 HLA-A. assay involves amplification by PCR genomic (1,900 bp), cycled reaction, followed capture ligated products through hybridization onto UA. Each slide was designed allow up eight samples parallel. PCR/LDR/UA evaluated analyzing 62 individuals (31 homozygous 31 heterozygous) previously typed direct sequencing. We demonstrate microarray genotyping procedure described here unambiguous alleles. perfect agreement obtained Our results clearly combination enzymatic processing demultiplexing tool SNP discrimination highly polymorphic region. specificity efficiency such an approach, suggesting feasibility low resolution procedure.