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. 2023 Sep 28;20(3):469–488. doi: 10.1080/15548627.2023.2259732

Figure 3.

Figure 3.

Lipid mechanism in ferroptosis. Ferroptosis is regulated by antioxidant enzymes, including GPX4 and AIFM2, which play a role in reducing ubiquinone (coenzyme Q10) and inhibiting ferroptosis. Among lipids, polyunsaturated fatty acids (PUFAs) are highly susceptible to peroxidation during ferroptosis. Long-chain saturated fatty acids (SFAs), such as palmitic acid (PA, C16:0) and stearic acid (SA, C18:0), as well as their downstream fatty alcohols (1-hexadecanol and 1-octadecanol), sensitize RSL3-induced ferroptosis. Conversely, exogenous monounsaturated fatty acids (MUFAs), including oleic acid (OA, C18:1) and palmitoleic acid (POA, C16:1), suppress ferroptosis. The regulation of key lipid metabolic enzymes involved in lipid synthesis, degradation, storage, transformation, and utilization is crucial in the context of ferroptosis. AA: arachidonic acid, AdA: adrenic acid, DHA: docosahexaenoic acid, DPA: docosapolyenoic acid, 1-HE: 1-hexadecanol, 1-OE: 1-octadecanol, eLPE/LPC: ether lysophosphatidylethanolamine/lysophosphocholine, ePe/epc: ether phosphatidylethanolamine/phosphocholine.