Related Experiment Videos
[DNA typing of HLA].
Rinsho Byori. the Japanese Journal of Clinical Pathology
|October 1, 1991
Summary
Advances in molecular biology enable precise Human Leukocyte Antigen (HLA) class II allele DNA typing. Polymerase chain reaction (PCR) offers a non-radioisotopic, sensitive method, replacing older techniques for improved clinical and laboratory medicine.
Area of Science:
- Molecular biology
- Genetic engineering
- Immunogenetics
Context:
- The Human Leukocyte Antigen (HLA) system exhibits significant genetic polymorphism.
- HLA class II molecules (DR, DQ, DP) possess polymorphic regions, primarily in the beta 1 domain.
- Advances in molecular biology have revolutionized clinical and laboratory medicine.
Purpose:
- To review current aspects of Human Leukocyte Antigen (HLA) class II allele DNA typing.
- To highlight the impact of Polymerase Chain Reaction (PCR) in advancing HLA typing methodologies.
- To compare various post-PCR analysis techniques and detection methods.
Summary:
- Polymerase Chain Reaction (PCR) has largely replaced Restriction Fragment Length Polymorphism (RFLP) analysis for HLA DNA typing.
- PCR enables non-radioisotopic detection methods, including chemiluminescent assays with high sensitivity.
- Techniques like dot-blot hybridization, PCR-RFLP, PCR-SSCP, DGGE, and direct sequencing are used for PCR product analysis.
Impact:
- PCR-based HLA typing is poised to replace traditional cytological methods like mixed lymphocyte culture (MLC) and primed lymphocyte test (PLT).
- Improved DNA typing enhances accuracy and efficiency in clinical diagnostics and laboratory medicine.
- Non-radioisotopic methods offer safety and cost-effectiveness in genetic analysis.