Abstract：
:Controversy over the role of antioxidants in cancer has persisted for decades. Here, we demonstrate that synthesis of the antioxidant glutathione (GSH), driven by GCLM, is required for cancer initiation. Genetic loss of Gclm prevents a tumor's ability to drive malignant transformation. Intriguingly, these findings can be replicated using an inhibitor of GSH synthesis, but only if delivered prior to cancer onset, suggesting that at later stages of tumor progression GSH becomes dispensable potentially due to compensation from alternative antioxidant pathways. Remarkably, combined inhibition of GSH and thioredoxin antioxidant pathways leads to a synergistic cancer cell death in vitro and in vivo, demonstrating the importance of these two antioxidants to tumor progression and as potential targets for therapeutic intervention.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Harris IS,Treloar AE,Inoue S,Sasaki M,Gorrini C,Lee KC,Yung KY,Brenner D,Knobbe-Thomsen CB,Cox MA,Elia A,Berger T,Cescon DW,Adeoye A,Brüstle A,Molyneux SD,Mason JM,Li WY,Yamamoto K,Wakeham A,Berman HK,Khokha R,doi
10.1016/j.ccell.2014.11.019subject
Has Abstractpub_date
2015-02-09 00:00:00pages
211-22issue
2eissn
1535-6108issn
1878-3686pii
S1535-6108(14)00470-Xjournal_volume
27pub_type
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