1. The iron chelator deferasirox synergises with chemotherapy to treat triple-negative breast cancers
- Author
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Tury, Sandrine, Assayag, Franck, Bonin, Florian, Chateau-Joubert, Sophie, Servely, Jean Luc, Vacher, Sophie, Becette, Véronique, Caly, Martial, Rapinat, Audrey, Gentien, David, De La Grange, Pierre, Schnitzler, Anne, Lallemand, François, Marangoni, Elisabetta, Bièche, Ivan, Callens, Céline, Institut Curie [Paris], BioPôle Alfort, École nationale vétérinaire d'Alfort (ENVA), Biologie du Développement et Reproduction (BDR), École nationale vétérinaire d'Alfort (ENVA)-Institut National de la Recherche Agronomique (INRA), Hôpital René HUGUENIN (Saint-Cloud), Department of Biopathology, Università degli Studi di Roma Tor Vergata [Roma], GenoSplice, Ltd, Génétique, physiopathologie et approches thérapeutiques des maladies héréditaires du système nerveux (EA 7331), Université Paris Descartes - Paris 5 (UPD5), Fondation ARC pour la recherche sur le cancer, 20141201685, and Fondation de France, 201400047492
- Subjects
Time Factors ,[SDV]Life Sciences [q-bio] ,Iron ,Mice, Nude ,Apoptosis ,Triple Negative Breast Neoplasms ,Adenocarcinoma ,chemotherapy ,Iron Chelating Agents ,Carboplatin ,breast cancer ,Antineoplastic Combined Chemotherapy Protocols ,Autophagy ,Animals ,Humans ,iron metabolism ,[INFO]Computer Science [cs] ,Cell Proliferation ,NF-kappa B ,Drug Synergism ,Xenograft Model Antitumor Assays ,Deferasirox ,Doxorubicin ,MCF-7 Cells ,iron chelators ,Cisplatin ,Phosphatidylinositol 3-Kinase ,Signal Transduction - Abstract
To ensure their high proliferation rate, tumor cells have an iron metabolic disorder causing them to have increased iron needs, making them more susceptible to iron deprivation. This vulnerability could be a therapeutic target. In breast cancers, the development of new therapeutic approaches is urgently needed for patients with triple-negative tumors, which frequently relapse after chemotherapy and suffer from a lack of targeted therapies. In this study, we demonstrated that deferasirox (DFX) synergises with standard chemotherapeutic agents such as doxorubicin, cisplatin and carboplatin to inhibit cell proliferation and induce apoptosis and autophagy in triple-negative breast cancer (TNBC) cells. Moreover, the combination of DFX with doxorubicin and cyclophosphamide delayed recurrences in breast cancer patient-derived xenografts without increasing the side-effects of chemotherapies alone or altering the global iron storage of mice. Antitumor synergy of DFX and doxorubicin seems to involve downregulation of the phosphoinositide 3-kinase and nuclear factor-κB pathways. Iron deprivation in combination with chemotherapy could thus help to improve the effectiveness of chemotherapy in TNBC patients without increasing toxicity. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John WileySons, Ltd.
- Published
- 2018
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