Stratifying ferroptosis sensitivity in cells and mouse tissues by photochemical activation of lipid peroxidation and fluorescent imaging

Ferroptosis is a non-apoptotic iron-dependent cell death. Here we present a protocol for stratifying ferroptosis sensitivity in cells and mouse tissues. This protocol uses photochemical activation of lipid peroxidation (PALP) coupled with fluorescent imaging to assess the relative sensitivity to ferroptosis. Using commercial reagents and common equipment, PALP is readily accessible to most laboratories. One remaining challenge is the inability to multiplex this technique in analyzing multiple tissues or regions simultaneously. This protocol may have applications in developing ferroptosis-targeted therapies. For complete details on the use and execution of this protocol, please refer to Wang et al. (2021).