PMID- 29541460 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2049-9434 (Print) IS - 2049-9442 (Electronic) IS - 2049-9434 (Linking) VI - 8 IP - 4 DP - 2018 Apr TI - Optimization of an in-house PCR method for the detection of HLA-B*27 alleles. PG - 385-390 LID - 10.3892/br.2018.1055 [doi] AB - The association of spondyloarthropathies with different alleles of human leukocyte antigen (HLA) B*27 is well established. Different subtypes of HLA-B*27 may be linked with different ethnic groups, distinct clinical manifestations, specific age of onset and different prognoses. Polymerase chain reaction with sequence specific primers (PCR-SSP) is the most frequently adapted molecular method used for the recognition of HLA-B*27-specific DNA sequences. The aim of the present study was to standarise an in-house protocol of PCR-SSP for HLA-B*27 allele detection for use in the Armed Forces Institute of Pathology (AFIP), Pakistan, with consideration of its cost effectiveness. A total of 49 individual samples were included, comprising 10 transplant samples determined to be HLA-B*27-negative by PCR-SSP and 39 HLA-B*27-positive samples determined by flow cytometry, obtained from patients who were symptomatic and referred for HLA-B*27 testing. By altering each variable individually, an in-house PCR-SSP protocol was optimized to amplify common HLA-B*27 alleles (2701-2721, 2723-2730). To discriminate B*27 from all other HLA-B alleles, a low-resolution HLA-B typing set with a 96 PCR-SSP primer mixture was used in conjunction. Among the 39 HLA-B*27-positive specimens, 31 (79%) were detected as positive by PCR-SSP, with the remaining samples failing due to a sub-optimized protocol and/or low DNA concentration. Additionally, there was complete concordance between flow cytometry and in-house PCR, and the sensitivity and specificity of the PCR-SSP were determined to be 100%. In conclusion, in-house SSP-PCR is, standard method for the detection of HLA-B*27 alleles. The determination of associations between specific HLA-B*27 alleles and AS may aid to identify individuals at higher risk of developing the disease. Furthermore, the identification of individuals at risk may aid to adapt preventive strategies. FAU - Afshan, Noor AU - Afshan N AD - Department of Immunology, Armed Forces Institute of Pathology, 46000 Rawalpindi, Pakistan. FAU - Bashir, Mukarram AU - Bashir M AD - Department of Immunology, Armed Forces Institute of Pathology, 46000 Rawalpindi, Pakistan. FAU - Tipu, Hamid Nawaz AU - Tipu HN AD - Department of Immunology, Armed Forces Institute of Pathology, 46000 Rawalpindi, Pakistan. FAU - Hussain, Mohammad AU - Hussain M AD - Department of Immunology, Armed Forces Institute of Pathology, 46000 Rawalpindi, Pakistan. LA - eng PT - Journal Article DEP - 20180201 PL - England TA - Biomed Rep JT - Biomedical reports JID - 101613227 PMC - PMC5838303 OTO - NOTNLM OT - ankylosing spondylitis OT - high-resolution polymerase chain reaction OT - human leukocyte antigen B27 OT - sequence specific primers OT - spondyloarthropathies EDAT- 2018/03/16 06:00 MHDA- 2018/03/16 06:01 PMCR- 2018/02/01 CRDT- 2018/03/16 06:00 PHST- 2017/09/20 00:00 [received] PHST- 2017/12/18 00:00 [accepted] PHST- 2018/03/16 06:00 [entrez] PHST- 2018/03/16 06:00 [pubmed] PHST- 2018/03/16 06:01 [medline] PHST- 2018/02/01 00:00 [pmc-release] AID - BR-0-0-1055 [pii] AID - 10.3892/br.2018.1055 [doi] PST - ppublish SO - Biomed Rep. 2018 Apr;8(4):385-390. doi: 10.3892/br.2018.1055. Epub 2018 Feb 1.