The majority of ovarian granulosa tumours harbour the C134W mutation in FOXL2 but the mechanism of tumorigenesis is largely unknown. Here, Kim et al. show that mutant FOXL2 is hyperphosphorylated by GSK3β, which targets the protein for degradation, and find that GSK3β inhibition represses the growth of ovarian granulosa cells.
- Jae-Hong Kim
- Yong-Hak Kim
- Jeehyeon Bae