Article
The complex conundrum of Merkel cell carcinoma cellular ancestry
29 Jul 2025
Abstract excerpt
Merkel cell carcinoma (MCC) is a rare but lethal skin neoplasm, caused, in approximately 80% of cases, by the genomic integration of Merkel cell polyomavirus (MCPyV) and the expression of viral oncoproteins small T (sT) and large T (LT) antigens. Virus-negative MCCs exhibit extensive UV-induced mutations. Although there is a growing understanding of MCC pathogenesis, the cellular origin of MCC remains a topic of...
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