Ueda et al. develop a sensor targeted to tumour cells that tracks extracellular H2O2. Tumour cells in H2O2 hotspots undergo partial epithelial–mesenchymal transition and migrate away from H2O2 hotspots. This is not seen in NRF2-hyperactivated tumours.
- Yoshifumi Ueda
- Shigeki Kiyonaka
- Nobuaki Takahashi