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Updated: Sep 15, 2025
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Infinium Assay for Large-scale SNP Genotyping Applications
Published on: November 19, 2013
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High-throughput genotyping tools for red blood cell antigens
1Department of Pathology, St. Jude Children's Research Hospital.
Current Opinion in Hematology
|July 15, 2025
Summary
Red blood cell (RBC) genotyping, using advanced SNP arrays and DNA sequencing, is revolutionizing antigen identification. This technology offers precise genetic insights, potentially becoming the new standard in transfusion medicine and research.
Area of Science:
- Immunogenetics
- Transfusion Medicine
- Genomics
Background:
- Red blood cell (RBC) antigens are determined by genetic variations.
- RBC genotyping aids serological typing, resolves discrepancies, and guides antigen matching, especially for complex systems like the Rh blood group.
Purpose of the Study:
- To review the clinical applications of RBC genotyping.
- To discuss current and emerging genotyping methods.
- To explore computational algorithms for automated, high-throughput RBC genotyping.
Main Methods:
- High-throughput platforms like SNP arrays and high-density SNP arrays identify common single-nucleotide polymorphisms (SNPs) and indels.
- DNA sequencing offers comprehensive data, detecting rare variants and structural variations.
- Development of computational algorithms addresses bioinformatics challenges for automated genotyping.
Main Results:
- Single-nucleotide polymorphisms (SNPs) are the primary genetic variations encoding RBC antigens.
- High-throughput platforms are increasingly used in clinical RBC genotyping.
- DNA sequencing provides more extensive information than SNP arrays, identifying novel variants.
Conclusions:
- Advances in microarray, sequencing, and bioinformatics are driving RBC genotyping.
- RBC genotyping is poised to become the gold standard for RBC antigen identification.
- This technology offers critical insights for both clinical practice and RBC antigen research.
