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Article Dans Une Revue Cells Année : 2021

Ferroptosis: Cancer Stem Cells Rely on Iron until “to Die for” It

Emma Cosialls
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Rima El Hage
Chang Gong
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Maryam Mehrpour
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Ahmed Hamaï
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Résumé

Cancer stem cells (CSCs) are a distinct subpopulation of tumor cells with stem cell-like features. Able to initiate and sustain tumor growth and mostly resistant to anti-cancer therapies, they are thought responsible for tumor recurrence and metastasis. Recent accumulated evidence supports that iron metabolism with the recent discovery of ferroptosis constitutes a promising new lead in the field of anti-CSC therapeutic strategies. Indeed, iron uptake, efflux, storage and regulation pathways are all over-engaged in the tumor microenvironment suggesting that the reprogramming of iron metabolism is a crucial occurrence in tumor cell survival. In particular, recent studies have highlighted the importance of iron metabolism in the maintenance of CSCs. Furthermore, the high concentration of iron found in CSCs, as compared to non-CSCs, underlines their iron addiction. In line with this, if iron is an essential macronutrient that is nevertheless highly reactive, it represents their Achilles’ heel by inducing ferroptosis cell death and therefore providing opportunities to target CSCs. In this review, we first summarize our current understanding of iron metabolism and its regulation in CSCs. Then, we provide an overview of the current knowledge of ferroptosis and discuss the role of autophagy in the (regulation of) ferroptotic pathways. Finally, we discuss the potential therapeutic strategies that could be used for inducing ferroptosis in CSCs to treat cancer.
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Dates et versions

hal-03442520 , version 1 (23-11-2021)

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Emma Cosialls, Rima El Hage, Leïla dos Santos, Chang Gong, Maryam Mehrpour, et al.. Ferroptosis: Cancer Stem Cells Rely on Iron until “to Die for” It. Cells, 2021, 10 (11), pp.2981. ⟨10.3390/cells10112981⟩. ⟨hal-03442520⟩

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