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Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation
Published on: September 6, 2017
Development and clinical evaluation of oligonucleotide microarray for HLA-AB genotyping
Fan Zhang1, Shouwang Hu, Jian Huang
1Beijing Institute of Radiation Medicine, Beijing 100850, China.
Pharmacogenomics
|October 24, 2006
Summary
This study developed an oligonucleotide microarray for human leukocyte antigen (HLA)-AB genotyping. The new method shows high accuracy and reproducibility, making it suitable for clinical transplantation diagnostics.
Area of Science:
- Immunogenetics
- Molecular Diagnostics
Background:
- Human leukocyte antigen (HLA) genes are crucial for transplantation immunology.
- Accurate HLA-A, B, and DRB1 genotyping is essential for donor-recipient matching.
Purpose of the Study:
- To develop and evaluate an oligonucleotide microarray for human leukocyte antigen (HLA)-AB genotyping.
Main Methods:
- Designed oligonucleotide probes for HLA-A and B genotypes.
- Prepared DNA using asymmetric polymerase chain reaction and labeled it with fluorescence.
- Hybridized labeled DNA to the microarray, scanned, and analyzed results using software.
Main Results:
- The microarray demonstrated a sensitivity of 10 ng/microl and 100% coincidence with international references.
- Clinical sample analysis showed high coincidence rates: 99.61% for HLA-A and 98.30% for HLA-B.
- DNA sequencing confirmed the microarray's higher accuracy in resolving conflicting genotype results.
Conclusions:
- The developed microarray is suitable for clinical HLA-AB genotyping.
- The method exhibits good specificity, sensitivity, and reproducibility.
- This microarray offers a reliable tool for transplantation diagnostics.
