Gastrointestinal stromal tumours (GIST) are believed to arise in interstitial cells of Cajal (ICC). These authors show that the transcription factor ETV1 is required for ICC development and promotes the development of GIST. KIT, which is often activated by mutations in GIST, cooperates with ETV1 in the transformation of ICCs, in part by promoting ETV1 stabilization. Thus, a normal developmental lineage factor is switched into a tumour-promoting factor by a cooperating oncogene.
- Ping Chi
- Yu Chen
- Charles L. Sawyers