Figure 7. Mechanisms responsible for lethal ER stress due to co-treatment with BZ and PS.
By inhibiting HDAC6 which shuttles misfolded, polyubiquitylated proteins into the protective organelle aggresome, co-treatment with BZ and PS increases the unfolded protein response and ER-stress. Protracted, unresolved ER stress leads to increased PS and BZ-induced cell-death.