Extended Data Fig. 5: Caspase-8, but not caspase-6, is required for TNFα-induced pyroptosis under hypoxia.

(a and b) MDA-MB-231 cells were cultured under normoxia (N) or hypoxia (H) and treated as indicated. LDH-released cell death was measured as shown in (a). Data are shown as mean ± SD of n = 3 independent experiments. P values were determined by two-sided Student’s t-test. Representative images of dying cell morphology of three independent experiments (b). Red arrows indicate cell swelling with big bubbles. Scale bar, 20 μm. Caspase-3i, caspase-3 inhibitor Z-DEVD-FMK; Caspase-6i, caspase-6 inhibitor Z-VEID-FMK; Caspase-8i, caspase-8 inhibitor Z-IETD-FMK (each at 10 μM). Statistical source data are provided in Source Data Extended Data Fig. 5.