MAPK-driven tumorigenesis is often related to epithelial dedifferentiation but the regulatory mechanism is less clear. Here, the authors show that MAPK activation upregulates USP15 to promote deubiquitylation and stability of TBX3, a transcription factor implicated in thyroid development and differentiation, driving tumorigenesis in a BRAFV600E thyroid tumor model.
- Zhenlei Zhang
- Yufan Wu
- Li Zhao