To understand the molecular features that drive metastasis in uveal melanoma (UM) and assess the prognostic relevance of genetic alterations.
Key Findings:
Mutations in BAP1, SF3B1, and EIF1AX correlate with high, intermediate, and low metastatic risk, respectively.
Gene expression profiling (15-GEP) is more predictive of metastasis-free and overall survival than individual driver mutations.
Small tumors are often classified as low-risk and show fewer high-risk genetic features, indicating they may represent an early evolutionary stage.
Interpretation:
Most UMs likely start as genetically simple, low-risk lesions that acquire mutations over time, emphasizing the importance of gene expression profiling in understanding tumor biology.
Limitations:
Longer follow-up is needed to confirm findings.
The study primarily focuses on a specific cohort, which may limit generalizability.
Conclusion:
The research advances the understanding of malignant transformation in UM and highlights the potential of integrated molecular testing for risk stratification.
