Molecular mechanisms of ferroptosis and its role in cancer therapy
Tao Xu1,2, Wei Ding3, Xiaoyu Ji1
1School of Basic Medical Sciences, Qingdao University, Qingdao, China.
Abstract:
Ferroptosis is a newly defined programmed cell death process with the hallmark of the accumulation of iron-dependent lipid peroxides. The term was first coined in 2012 by the Stockwell Lab, who described a unique type of cell death induced by the small molecules erastin or RSL3. Ferroptosis is distinct from other already established programmed cell death and has unique morphological and bioenergetic features. The physiological role of ferroptosis during development has not been well characterized. However, ferroptosis shows great potentials during the cancer therapy. Great progress has been made in exploring the mechanisms of ferroptosis. In this review, we focus on the molecular mechanisms of ferroptosis, the small molecules functioning in ferroptosis initiation and ferroptosis sensitivity in different cancers. We are also concerned with the new arising questions in this particular research area that remains unanswered.
Insights
Ferroptosis, a form of programmed cell death involving iron-dependent lipid peroxidation, is a promising cancer therapy target. This review explores ferroptosis mechanisms, inducers, and cancer-specific sensitivities, highlighting unanswered questions.
Area of Science:
- Biochemistry
- Cell Biology
- Oncology
Background:
- Ferroptosis is a distinct programmed cell death characterized by iron-dependent lipid peroxide accumulation.
- First described in 2012, it possesses unique morphological and bioenergetic properties.
- Its physiological roles in development are underexplored, but it shows significant therapeutic potential in cancer.
Purpose of the Study:
- To review the molecular mechanisms underlying ferroptosis.
- To discuss small molecules that initiate ferroptosis.
- To examine ferroptosis sensitivity across various cancer types.
Main Methods:
- Literature review focusing on ferroptosis research.
- Analysis of molecular pathways involved in ferroptosis.
- Compilation of data on ferroptosis inducers and cancer sensitivity.
Main Results:
- Detailed overview of ferroptosis molecular mechanisms.
- Identification of key small molecules (e.g., erastin, RSL3) that trigger ferroptosis.
- Discussion of differential ferroptosis sensitivity in various cancers.
Conclusions:
- Ferroptosis is a critical area of research with significant implications for cancer therapy.
- Further investigation into its mechanisms and therapeutic applications is warranted.
- Unanswered questions remain regarding ferroptosis's role and manipulation in cancer.
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