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Multiplex ligation-dependent probe amplification equals fluorescence in-situ hybridization for the identification of patients at risk for metastatic disease in uveal melanoma.

Melanoma Res. 2012, vol. 22, issue 1

In uveal melanoma, loss of chromosome 3 and gain of chromosome 8q are associated with a high risk of metastasis. In this study, we validated the use of multiplex ligation-dependent probe amplification (MLPA) in detecting patients at risk for metastatic disease in comparison with the predictive power of fluorescence in-situ hybridization (FISH). For 64 uveal melanoma samples, the MLPA results of chromosome 3 and 8 were compared with the results obtained by FISH. For seven samples, a single nucleotide polymorphism array was performed to clarify discrepancies. Clinical information together with the histopathology and chromosomal aberrations of chromosomes 1, 3, 6, and 8 were evaluated for correlation with the patients' prognosis. Loss of chromosome 3, loss or gain of 8p, and gain of 8q, found with MLPA, correlated with a significantly lower disease-free survival (PLink to full publication

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