A single next generation sequencing assay for detection of driver mutations, rearrangements and copy number abnormalities in plasma cell dyscrasias
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By
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March 28, 2026
Objective:
To present a targeted sequencing approach that detects structural variants, copy number abnormalities, and clinically relevant mutations specifically in multiple myeloma (MM).
Key Findings:
- A median of two mutated genes per sample was identified, with KRAS, NRAS, and FAM46C being the most frequently mutated.
- The sequencing approach demonstrated 100% sensitivity and specificity for several translocations and high sensitivity for detecting hyperdiploid MM.
- The method improved detection of del(17p) sensitivity from 59% to 78% by targeting multiple regions.
Interpretation:
The next-generation sequencing approach provides a comprehensive assessment of genetic abnormalities in MM, surpassing the limitations of traditional FISH assays.
Limitations:
- The study's findings are based on a specific patient cohort, which may limit generalizability and applicability to broader populations.
- FISH was unavailable for some cases, potentially affecting comparative analysis and the robustness of the findings.
Conclusion:
The targeted sequencing panel is a robust tool for identifying critical genetic alterations in MM, enhancing diagnostic accuracy and risk stratification, with significant implications for clinical practice.
