AI Article Synopsis
- Golgi-disrupting compounds like AMF-26/M-COPA, brefeldin A, and golgicide A have been shown to induce autophagy, apoptosis, and now ferroptosis, a form of cell death driven by oxidative stress related to iron.
- Inhibitors of ferroptosis can not only stop cell death but also protect against Golgi disruption and protein secretion issues caused by various stressors.
- The study indicates that the Golgi apparatus plays a new role in maintaining redox balance in cells, thus preventing ferroptotic cell death.
Article Abstract
Cytotoxic activities of several Golgi-dispersing compounds including AMF-26/M-COPA, brefeldin A and golgicide A have previously been shown to induce autophagy or apoptosis. Here, we demonstrate that these Golgi disruptors also trigger ferroptosis, a non-apoptotic form of cell death characterized by iron-dependent oxidative degradation of lipids. Inhibitors of ferroptosis not only counteract cell death, but they also protect from Golgi dispersal and inhibition of protein secretion in response to several Golgi stress agents. Furthermore, the application of sublethal doses of ferroptosis-inducers such as erastin and sorafenib, low cystine growth conditions, or genetic knockdown of SLC7A11 and GPX4 all similarly protect cells from Golgi stress and lead to modulation of ACSL4, SLC7A5, SLC7A11 or GPX4 levels. Collectively, this study suggests a previously unrecognized function of the Golgi apparatus, which involves cellular redox control and prevents ferroptotic cell death.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6262011 | PMC |
| http://dx.doi.org/10.1038/s42003-018-0212-6 | DOI Listing |
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