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Zheng, J. ; Sato, M.* ; Mishima, E. ; Sato, H.* ; Proneth, B. ; Conrad, M.

Sorafenib fails to trigger ferroptosis across a wide range of cancer cell lines.

Cell Death Dis. 12:698 (2021)
Verlagsversion Forschungsdaten DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Sorafenib, a protein kinase inhibitor approved for the treatment of hepatocellular carcinoma and advanced renal cell carcinoma, has been repeatedly reported to induce ferroptosis by possibly involving inhibition of the cystine/glutamate antiporter, known as system xc-. Using a combination of well-defined genetically engineered tumor cell lines and canonical small molecule ferroptosis inhibitors, we now provide unequivocal evidence that sorafenib does not induce ferroptosis in a series of tumor cell lines unlike the cognate system xc- inhibitors sulfasalazine and erastin. We further show that only a subset of tumor cells dies by ferroptosis upon sulfasalazine and erastin treatment, implying that certain cell lines appear to be resistant to system xc- inhibition, while others undergo ferroptosis-independent cell death. From these findings, we conclude that sorafenib does not qualify as a bona fide ferroptosis inducer and that ferroptosis induced by system xc- inhibitors can only be achieved in a fraction of tumor cell lines despite robust expression of SLC7A11, the substrate-specific subunit of system xc-.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter X(c)(-) Cystine Transporter; Plasma-membrane; Death; Inhibition; Resistance; Exchange; Growth
Sprache englisch
Veröffentlichungsjahr 2021
HGF-Berichtsjahr 2021
ISSN (print) / ISBN 2041-4889
e-ISSN 2041-4889
Zeitschrift Cell Death & Disease
Quellenangaben Band: 12, Heft: 7, Seiten: , Artikelnummer: 698 Supplement: ,
Verlag Nature Publishing Group
Verlagsort Campus, 4 Crinan St, London, N1 9xw, England
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Metabolism and Cell Death (MCD)
POF Topic(s) 30203 - Molecular Targets and Therapies
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-506900-001
Förderungen Deutsche Forschungsgemeinschaft (German Research Foundation)
DOI 10.1038/s41419-021-03998-w
WOS ID WOS:000675492200001
Scopus ID 85110891238
PubMed ID 34257282
Erfassungsdatum 2021-08-04
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