Radiation-Induced Caspase-8 Mediates p53-Independent Apoptosis in Glioma Cells

Abstract excerpt

Malignant gliomas are almost uniformly fatal and display exquisite radiation resistance. Glioma cells lacking wild-type (WT) p53 function are more susceptible to radiation-induced apoptosis than their isogenic counterparts expressing WT p53. We explored the mechanisms of such apoptosis and found that, in the absence of WT p53, radiation increases caspase-8 expression and activity. Inhibition of caspase-8...

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