According to recent research from Graz, Austria, "Although the exact molecular mechanisms of Merkel cell carcinoma (MCC) tumorigenesis are unknown, they likely involve complex genetic alterations and mutations similar to those seen in many other cancers. In this study, we obtained MCCs from 21 elderly patients (19 women, 2 men) and analyzed their DNA for mutation of exons of interest in several tumor-suppressor genes or oncogenes known to be frequently mutated in skin cancer: p53 (exons 4-8), Ras (exons 1 and 2), c-Kit (exon 11), and the INK4a-ARF locus (encoding p14 and p16) (exons 1 and 2)."
"Direct sequence analysis revealed p53 mutations (that is, at codons 224,...
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