(A). Cell cytotoxicity (24 hours, n=4, p<0.001) and crystal violet staining (2 days) of RCC4 Vec and VHL cells treated with indicated concentrations of erastin.
(B). Western blots analysis of Noxa protein induction in RCC4 Vec and VHL cells treated with indicated concentrations of erastin.
(C). Cell cytotoxicity (24 hours, n=3, p<0.05) of 786-O Vec, VHL and different shRNA sub-lines cells treated with indicated concentrations of erastin.
(D). Model of the distinct signaling components triggered by cystine deprivation in VHL-deficient and VHL-restored ccRCC.