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gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair

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New challenges for BRCA testing: a view from the diagnostic laboratory.

Andrew J Wallace¹

¹Genomic Diagnostics Laboratory, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester, UK.

European Journal of Human Genetics : EJHG

|August 13, 2016

Summary

Diagnostic laboratories face challenges in BRCA testing, including variant classification and somatic mutation detection. Next-generation sequencing (NGS) offers increased capacity but introduces workflow complexities, necessitating efficient strategies for accurate mutation detection and reporting.

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gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair

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Published on: February 17, 2011

Area of Science:

Genomic Medicine
Molecular Diagnostics
Cancer Genomics

Background:

Rising demand for BRCA testing strains diagnostic laboratory capacity.
Challenges include classifying variants of unknown significance and detecting somatic mutations in FFPE samples.

Purpose of the Study:

To review the challenges faced by diagnostic laboratories in BRCA testing.
To discuss the adoption of next-generation sequencing (NGS) technologies.
To highlight the need for efficient and standardized BRCA testing workflows.

Main Methods:

Review of current diagnostic laboratory practices for BRCA testing.
Analysis of the implications of adopting next-generation sequencing (NGS) platforms.
Discussion of bioinformatics and enrichment strategies within the NGS workflow.

Main Results:

NGS adoption increases screening capacity and reduces costs but introduces workflow complexities.
Key challenges involve NGS platform selection, enrichment methods, and bioinformatics analysis.
Accurate classification of BRCA variants and detection of somatic mutations remain critical.

Conclusions:

Diagnostic laboratories require efficient, cost-effective, and accurate mutation detection strategies for BRCA testing.
Standardized reporting of BRCA test results is imperative.
Careful consideration of NGS workflow components is essential for successful implementation.