Small intestine neuroendocrine tumors (SI-NETs) are the most common malignancy of the small bowel. Several clinical trials target PI3K/Akt/mTOR signaling; however, it is unknown whether these or other genes are genetically altered in these tumors. To address the underlying genetics, we analyzed 48 SI-NETs by massively parallel exome sequencing. We detected an average of 0.1 somatic single nucleotide variants (SNVs) per 106 nucleotides (range, 0–0.59), mostly transitions (C>T and A>G), which suggests that SI-NETs are stable cancers. 197 protein-altering somatic SNVs affected a preponderance of cancer genes, including
Michaela S. Banck, Rahul Kanwar, Amit A. Kulkarni, Ganesh K. Boora, Franziska Metge, Benjamin R. Kipp, Lizhi Zhang, Erik C. Thorland, Kay T. Minn, Ramesh Tentu, Bruce W. Eckloff, Eric D. Wieben, Yanhong Wu, Julie M. Cunningham, David M. Nagorney, Judith A. Gilbert, Matthew M. Ames, Andreas S. Beutler
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