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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Rapid and Reliable Genotyping of HLA-B*57:01 in Four Chinese Populations Using a Single-Tube Duplex Real-Time Polymerase Chain Reaction Assay.
AIDS Research and Human Retroviruses 2017 July
HLA-B*57:01 is strongly associated with severe adverse drug reaction induced by the anti-HIV drug abacavir (ABC) and antibiotic flucloxacillin. This study was dedicated to establishing a new method for HLA-B*57:01 genotyping and investigating the HLA-B*57:01 distribution pattern in four Chinese populations. A single-tube duplex real-time polymerase chain reaction (PCR) system was established by combining the amplification refractory mutation system and TaqMan probe. The reliability of this assay was validated by comparing the genotyping results with those by sequence-based typing. With this assay, the distribution of HLA-B*57:01 in 354 blood samples from four ethnic groups, namely, Han, Tibetan, Uighur, and Buyei, was determined. A 100% concordance was observed between the results of real-time PCR and sequence-based typing in 50 Uighur samples. As low as 0.016 ng DNA that carried HLA-B*57:01 could be detected with this assay. HLA-B*57:01 carriers identified in 100 Northern Han Chinese, 104 Buyeis, 100 Tibetans, and 50 Uighurs were 0, 1 (0.96%), 3 (3%), and 6 (12%), respectively. The carrier rate of HLA-B*57:01 in Uighur was significantly higher than those in Northern Han (p = .001) and Buyei (p = .005). The newly established real-time PCR assay provides a rapid and reliable tool for HLA-B*57:01 allele screening before the prescription of ABC and flucloxacillin in clinical practice.
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