Reactive oxygen species (ROS) and hypoxia-inducible factors (HIF) mediate regeneration but how is unclear. Here, the authors use an optic-based probe (‘optrode’) to monitor oxygen (O2) during Xenopus tail regeneration, identifying crosstalk between O2 influx, ROS production, and HIF-1α stabilization.
- Fernando Ferreira
- VijayKrishna Raghunathan
- Min Zhao