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Cell Biol Int. 2007 Mar;31(3):215-9. Epub 2006 Oct 18.

Evaluation of aneuploidy frequency for chromosomes 6 and 17 in eyelid tumours using the FISH technique.

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  • 1Department of Ophthalmology, Selçuk University, Meram Medical Faculty, Konya 42080, Turkey.

Abstract

Although basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) are very common skin tumours, the incidence of chromosome aneuploidy with regard to the eyelid has not been investigated. We aimed to find the frequency of chromosome 6 and 17 aneuploidies in eyelid tumours' interphase nuclei with fluorescence in situ hybridization (I-FISH) with chromosome specific DNA probes. I-FISH with chromosome 6 and 17 centromere specific DNA probes was used in the eyelids of 10 patients with BCC or SCC and the peripheral blood cells of 10 healthy donors as controls. The frequency of chromosome 6 and 17 aneuploidies was significantly higher in 7 out of 10 patients and 5 out of 10 patients, respectively, than in controls, indicating a higher frequency of aneuploidy in BCC than in SCC of the eyelid. Distribution of hybridization signals for chromosome 6 and 17 was wide ranging, indicating heterogeneity of cell populations with aneuploidy between patients. These findings indicate that acquisition of chromosome aneuploidies in eyelid tumours may have an important pathogenic role in both BCC and SCC of the eyelid area.

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