PMID- 23240628 OWN - NLM STAT- MEDLINE DCOM- 20130926 LR - 20220408 IS - 1399-0039 (Electronic) IS - 0001-2815 (Linking) VI - 81 IP - 2 DP - 2013 Feb TI - Loop-mediated isothermal amplification for detection of HLA-B*58:01 allele. PG - 83-92 LID - 10.1111/tan.12042 [doi] AB - Strong association of human leukocyte antigen (HLA)-B*58:01 allele with allopurinol-induced hypersensitivity was found worldwide, especially in the Han Chinese populations. This study aims to develop and evaluate a loop-mediated isothermal amplification (LAMP) assay for rapid detection of HLA-B*58:01. Two sets of LAMP primers targeting exons 2 and 3 of HLA-B*58:01 allele were designed and their annealing temperatures were optimized accordingly. The heating devices for LAMP assay were tested. The analytical sensitivities of the two sets of LAMP primers were determined by 1:10 serial dilution of a positive control with homozygous HLA-B*58:01 allele from 100 ng down to 1 fg. The analytical specificities of the LAMP primers were evaluated by 30 selected University of California, Los Angeles (UCLA) DNA Exchange Program samples with known HLA-B loci typings previously typed by sequencing. Both sets of LAMP primers targeting exons 2 and 3 amplified optimally at 67 degrees C. Thermal cycler is essential in achieving a more precise and specific LAMP result. The sensitivity of the exon 2 LAMP primer set was found to be 1 pg, whereas it was 10 ng for the exon 3 primer set in a 60-min amplification. The LAMP primers were highly specific because LAMP results were perfectly concordant to the sequencing results. The HLA-B*58:01 LAMP assay has compatible sensitivity and specificity to routine genotyping assays, and it is potentially an alternative screening test for the detection of HLA-B*58:01 and ultimately allopurinol-induced hypersensitivity. CI - (c) 2012 John Wiley & Sons A/S. FAU - Kwok, J AU - Kwok J AD - Division of Transplantation and Immunogenetics, Department of Pathology and Clinical Biochemistry, Queen Mary Hospital, Hong Kong SAR, China. kwoksy@ha.org.hk FAU - Kwong, K M AU - Kwong KM LA - eng PT - Journal Article DEP - 20121213 PL - England TA - Tissue Antigens JT - Tissue antigens JID - 0331072 RN - 0 (DNA Primers) RN - 0 (HLA-B Antigens) RN - 0 (HLA-B*58:01 antigen) SB - IM MH - *Alleles MH - Base Sequence MH - DNA Primers/metabolism MH - Exons/genetics MH - HLA-B Antigens/*analysis/*genetics MH - Humans MH - Molecular Sequence Data MH - Nucleic Acid Amplification Techniques/methods MH - Temperature EDAT- 2012/12/18 06:00 MHDA- 2013/09/27 06:00 CRDT- 2012/12/18 06:00 PHST- 2012/03/01 00:00 [received] PHST- 2012/11/08 00:00 [revised] PHST- 2012/11/11 00:00 [accepted] PHST- 2012/12/18 06:00 [entrez] PHST- 2012/12/18 06:00 [pubmed] PHST- 2013/09/27 06:00 [medline] AID - 10.1111/tan.12042 [doi] PST - ppublish SO - Tissue Antigens. 2013 Feb;81(2):83-92. doi: 10.1111/tan.12042. Epub 2012 Dec 13.