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Updated: May 3, 2026
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Isolated Hepatic Perfusion as a Treatment for Liver Metastases of Uveal Melanoma
Published on: January 25, 2015
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Uveal melanoma gene expression status post radiotherapy
Summary
Gene expression profiling can be performed on uveal melanoma previously treated with radiotherapy. This analysis reveals distinct molecular signatures that may predict tumor behavior, aiding in treatment assessment.
Area of Science:
- Ophthalmology
- Oncology
- Genetics
Background:
- Uveal melanoma (UM) exhibits two distinct molecular genetic signatures.
- These signatures predict tumor aggressiveness and metastatic potential.
- Class 1 signatures indicate less aggressive tumors, while Class 2 signatures suggest higher aggressiveness.
Observation:
- Gene expression profiling in previously treated UM was not previously reported.
- Three cases of UM treated years earlier with radiotherapy underwent gene expression profiling.
- Treatments included Iodine-125 (125I) plaque brachytherapy and proton irradiation therapy.
Findings:
- Fine-needle aspiration biopsy for gene expression profiling was successful in previously treated UM.
- Case 1 demonstrated a Class 1 molecular signature.
- Cases 2 and 3 exhibited a Class 2 molecular signature.
Implications:
- Gene expression profiling is feasible even after radiotherapy for uveal melanoma.
- These molecular signatures may offer insights into tumor behavior in previously treated UM.
- Further clinical evaluation is needed to understand the full implications of these findings.
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