Higher percentage of FISH-determined monosomy 3 and 8q amplification in uveal melanoma cells relate to poor patient prognosis.
Invest. Ophthalmol. Vis. Sci. 2012, vol. 53, issue 6
To investigate the relation between patient survival and incrementally increasing percentages of fluorescence in situ hybridization-determined complete loss of chromosome 3 (monosomy 3) and gain of chromosome 8q in primary uveal melanoma cells.
Clinicopathological factors were related to disease-free survival. Fluorescence in situ hybridization was performed using probes on chromosomes 1, 3, 6, and 8. The percentages of UM cells with monosomy 3 or chromosome 8q gain were classified in groups with incrementally increasing percentages and related to disease-free survival. Correlations between clinical factors and cytogenetic aberrations were also analyzed.
Two-hundred twenty choroidal and ciliary body melanomas were analyzed. The following proved to be significant predictors of survival in univariate analysis: older patient age (P = 0.003); large tumor diameter (P
A high percentage monosomy 3 and chromosome 8q gain in primary UM cells showed a strong relation with poor disease-free survival compared with low percentage aberrations.Link to full publication