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. 2020 Jun 23;11:3173. doi: 10.1038/s41467-020-16902-5

Fig. 9. Model of caspase-9 activity in ischemic neurovascular injury.

Fig. 9

Hypoxia–ischemia injury activates caspase-9 in endothelial cells, inducing nonapoptotic endothelial dysfunction. Caspase-9 promotes capillary ischemia and induces endothelial barrier breakdown and neuronal injury. Pen1-XBir3 protects CNS tissues from hypoxia–ischemia injury by inhibiting caspase-9.