HLA‐DR typing by PCR amplification with sequence‐specific primers (PCR‐SSP) in 2 hours: an alternative to serological DR typing in clinical practice including donor …

O Olerup, H Zetterquist - Tissue antigens, 1992 - Wiley Online Library
O Olerup, H Zetterquist
Tissue antigens, 1992Wiley Online Library
In most PCR‐based tissue typing techniques the PCR amplification is followed by a post‐
amplification specificity step. In typing by PCR amplification with sequence‐specific primers
(PCR‐SSP), typing specificity is part of the amplification step, which makes the technique
almost as fast as serological tissue typing. In the present study primers were designed for
DR “low‐resolution” typing by PCR‐SSP, ie identifying polymorphism corresponding to the
serologically defined series DR1‐DRw18. This resolution was achieved by performing 19 …
Abstract
In most PCR‐based tissue typing techniques the PCR amplification is followed by a post‐amplification specificity step. In typing by PCR amplification with sequence‐specific primers (PCR‐SSP), typing specificity is part of the amplification step, which makes the technique almost as fast as serological tissue typing. In the present study primers were designed for DR “low‐resolution” typing by PCR‐SSP, i.e. identifying polymorphism corresponding to the serologically defined series DR1‐DRw18. This resolution was achieved by performing 19 PCR reactions per individual, 17 for assigning DR1‐DRw18 and 2 for the DRw52 and DRw53 superspecificities. Thirty cell lines and 121 individuals were typed by the DR “low‐resolution” PCR‐SSP technique, TagI DRB‐DQA‐DQB RFLP analysis and serology. The concordance between PCR‐SSP typing and RFLP analysis was 100% The reproducibility was 100% in 40 samples typed on two separate occasions. No false‐positive or false‐negative typing results were obtained. All homozygous and heterozygous combinations of DR1‐DRw18 could be distinguished. Amplification patterns segregated according to dominant Mendelian inheritance. DNA preparation, PCR amplification and post‐amplification processing, including gel detection, documentation and interpretation, were performed in 2 hours. In conclusion, PCR‐SSP is an accurate typing technique with high sensitivity, specificity and reproducibility. The method is rapid and inexpensive. DR “low‐resolution” typing by the PCR‐SSP technique is ideally suited for analyzing small numbers of samples simultaneously and is an alternative to serological DR typing in routine clinical practice including donor‐recipient matching in cadaveric transplantations.
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