Abstract
We analysed 26 metastases from 25 patients with sporadic cutaneous malignant melanoma for alterations in the CDKN2 gene by a combined polymerase chain reaction/single-strand conformation polymorphism (PCR/SSCP)/nucleotide sequencing approach. Eleven alterations (one in exon 1, five in exon 2 and five in the 3' non-coding sequence of the exon 3 region) were concordantly and independently detected by both SSCP and nucleotide sequence analysis. Two of the exon 2 changes and the five changes in the non-coding exon 3 region are likely to represent natural polymorphism. Four (15%) of 26 metastases thus had CDKN2 mutations and belonged to 3 (12%) of 25 patients. Semi-quantitative PCR furthermore revealed no sign of homozygous deletions of the CDKN2 exon 2 region. The results support an involvement of the CDKN2 product in the development of a subgroup of sporadic melanomas and encourage the search for alterations in additional genes of the 9p21 region.
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Platz, A., Ringborg, U., Lagerlöf, B. et al. Mutational analysis of the CDKN2 gene in metastases from patients with cutaneous malignant melanoma. Br J Cancer 73, 344–348 (1996). https://doi.org/10.1038/bjc.1996.59
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DOI: https://doi.org/10.1038/bjc.1996.59
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