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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Müller, Sebastian
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Publications (5/5 displayed)
- 2025An Initial Study of Ultra High Performance Concrete as Reusable Mold Material for Aluminum Casting
- 2024Activation of lysosomal iron triggers ferroptosis in cancer
- 2023Ultra-high performance alkali-activated slag as a reusable mold for light metal casting
- 2021A Near-Surface Layer Heat Treatment of Die Casting Dies by Means of Electron-Beam Technologycitations
- 2015Modellierung des schädigungsbehafteten inelastischen Materialverhaltens von Faser-Kunststoff-Verbunden
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document
Activation of lysosomal iron triggers ferroptosis in cancer
Abstract
<jats:title>Abstract</jats:title><jats:p>Iron catalyses the oxidation of lipids in biological membranes and promotes a form of cell death referred to as ferroptosis<jats:sup>1-3</jats:sup>. Identifying where this chemistry takes place in the cell can inform the design of drugs capable of inducing or inhibiting ferroptosis in various disease-relevant settings. Whereas genetic approaches have revealed underlying mechanisms of lipid peroxide detoxification<jats:sup>1,4,5</jats:sup>, small molecules can provide unparalleled spatiotemporal control of the chemistry at work<jats:sup>6</jats:sup>. Here, we show that the ferroptosis inhibitor liproxstatin-1 (Lip-1) exerts a protective activity by inactivating iron in lysosomes. Based on this, we designed the bifunctional compound fentomycin that targets phospholipids at the plasma membrane and activates iron in lysosomes upon endocytosis, promoting oxidative degradation of phospholipids and ferroptosis. Fentomycin effectively kills primary sarcoma and pancreatic ductal adenocarcinoma cells. It acts as a lipolysis-targeting chimera (LIPTAC), preferentially targeting iron-rich CD44<jats:sup>high</jats:sup> cell-subpopulations<jats:sup>7,8</jats:sup> associated with the metastatic disease and drug resistance<jats:sup>9,10</jats:sup>. Furthermore, we demonstrate that fentomycin also depletes CD44<jats:sup>high</jats:sup> cells <jats:italic>in vivo</jats:italic> and reduces intranodal tumour growth in an immunocompetent murine model of breast cancer metastasis. These data demonstrate that lysosomal iron triggers ferroptosis and that lysosomal iron redox chemistry can be exploited for therapeutic benefits.</jats:p>