Pancreatic adenosquamous carcinomas are rare but highly aggressive tumors, and our understanding of them is limited. In a new study, Miles Wilkinson and colleagues now report that they have identified somatic mutations in an RNA helicase encoded by UPF1 in some pancreatic adenosquamous carcinomas. UPF1 is required for nonsense-mediated RNA decay, suggesting that the aberrant accumulation of altered RNA transcripts may contribute to the malignant phenotype of these tumors and could be a target of diagnostic and therapeutic approaches for this tumor type.
- Chen Liu
- Rachid Karam
- YanJun Lu