The paper titled “The changing landscape of HLA typing: Understanding how and when HLA typing data can be used with confidence from bench to bedside” by Lee Ann Baxter-Lowe1 provides an in-depth overview of the Human Leukocyte Antigen (HLA) system and its significant impact on clinical and scientific fields, particularly in transplantation. It emphasizes the extreme diversity of HLA genes, with over 30,000 HLA alleles officially named and more being discovered at a rapid pace. The paper underscores the importance of understanding the continuous improvements in knowledge and technology, and the need for a fundamental understanding of HLA diversity and limitations in some of the typing data for appropriate use in clinical and research settings.
The paper delves into the processes of HLA phenotyping and genotyping, which involve identifying the physical and genetic characteristics of HLA genes, respectively. It discusses the evolution of genotyping methods from serology to Next-Generation Sequencing (NGS), which has become the gold standard due to its accuracy and ability to identify more HLA differences. The paper also highlights the use of different systems to detect HLA diversity, such as the use of a catalog of common, intermediate, and well-documented (CIWD) alleles.
Finally, the paper discusses the challenges created by the rapidly evolving landscape of HLA typing. It highlights the issues related to the continuous improvements in knowledge and technology, such as the interpretation of typing data and the impact of the dynamic reference database. The paper also discusses the process of inferring and imputing HLA genotypes, highlighting the use of computational methods to predict HLA genotypes based on available data and the challenges associated with these methods. The paper concludes by emphasizing the importance of understanding the continual expansion of HLA diversity and the limitations in some of the typing data for using typing data appropriately in clinical and research settings.
https://thesequencingcenter.com/wp-content/uploads/2023/06/hla_ngs.png191800Richard Caseyhttps://thesequencingcenter.com/wp-content/uploads/2019/01/TSC_wide_logo_blue-e1546560904499.pngRichard Casey2023-06-19 09:58:512023-06-19 10:31:57Mastering the Art of HLA Typing
The Sequencing Center is one of the leading service providers for HLA Typing and Whole Genome Sequencing (WGS) in the USA. Offering affordable, high-coverage HLA typing results with 4-field resolution and microbial scale WGS, we provide clients with exceptional services, including DNA extraction, library prep, sequencing and bioinformatics. We work with leading research organizations world-wide in various fields including immunology, oncology, transplantation, inherited diseases, neurodegenerative diseases, and drug discovery and development.
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