Pre-PCR Mutation-Enrichment Methods for Liquid Biopsy Applications.

Area of Science:

• Biomolecular analysis
• Genomics
• Personalized medicine

Background:

• Liquid biopsy, particularly circulating free DNA (cfDNA), is crucial for personalized medicine.
• Tumor-derived ctDNA in liquid biopsies aids in cancer detection, relapse prediction, and resistance monitoring.
• Low ctDNA frequency in cfDNA presents significant detection challenges.

Purpose of the Study:

• To review available pre-PCR enrichment methods for ctDNA detection.
• To highlight recent advancements in pre-PCR enrichment techniques.
• To emphasize the application of these methods in liquid biopsies.

Main Methods:

• Review of mutation-enrichment strategies for ctDNA analysis.
• Focus on pre-PCR enrichment techniques, contrasting them with post-PCR methods.
• Description of specific novel methods: NaME-PrO, UVME, and DEASH/MAESTRO.

Main Results:

• Pre-PCR enrichment methods offer advantages by reducing PCR-induced errors and enabling direct application to genomic DNA.
• These techniques allow for high multiplexity and compatibility with existing detection platforms.
• Newly developed methods demonstrate enhanced sensitivity and versatility compared to earlier approaches.

Conclusions:

• Pre-PCR enrichment is a vital strategy for improving the sensitivity of ctDNA detection in liquid biopsies.
• Novel techniques like NaME-PrO, UVME, and DEASH/MAESTRO represent significant progress in the field.
• These advancements hold promise for more effective cancer diagnostics and management.