How do different lipid peroxidation mechanisms contribute to ferroptosis?
Source abstract
Abstract
Lipid peroxidation is the driver of ferroptotic cell death. However, nonconjugated and conjugated polyunsaturated fatty acids potentiate ferroptosis differently, while some isoprenoid-derived lipids inhibit ferroptosis despite being highly oxidizable. In this perspective, we propose that different oxidation mechanisms and products contribute to the discrepancies in the lipids' potency in modulating ferroptosis. We first discuss the relative reactivities of various lipids toward two rate-determining free radical propagating mechanisms, hydrogen atom transfer (HAT) and peroxyl radical addition (PRA), and the resulting differential product profiles. We then discuss the role and regulation of lipid peroxidation in ferroptosis and the potential contributions of different oxidation products, such as truncated lipids and lipid electrophiles, from HAT and PRA mechanisms to the execution of ferroptosis. Lastly, we offer our perspective on the remaining questions to fully understand the process from lipid peroxidation to ferroptosis.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ferroptosis and cancer prognosis · Cancer, Lipids, and Metabolism · RNA modifications and cancer
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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