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NRF2 Is a Major Target of ARF in p53-Independent Tumor Suppression

Open access
Chen, Delin, Tavana, Omid, Chu, Bo, Erber, Luke, Chen, Yue, Baer, Richard, Gu, Wei·2017·Molecular Cell

Abstract

Summary Although ARF can suppress tumor growth by activating p53 function, the mechanisms by which it suppresses tumor growth independently of p53 are not well understood. Here, we identified ARF as a key regulator of nuclear factor-E2-related factor 2 (NRF2) through complex purification. ARF inhibits the ability of NRF2 to transcriptionally activate its target genes, including SLC7A11, a component of the cystine/glutamate antiporter that regulates reactive oxygen species (ROS)-induced ferroptosis. As a consequence, ARF expression sensitizes cells to ferroptosis in a p53-independent manner while ARF depletion induces NRF2 activation and promotes cancer cell survival in response to oxidative stress. Moreover, the ability of ARF to induce p53-independent tumor growth suppression in mouse xenograft models is significantly abrogated upon NRF2 overexpression. These results demonstrate that NRF2 is a major target of p53-independent tumor suppression by ARF and also suggest that the ARF-NRF2 interaction acts as a new checkpoint for oxidative stress responses.

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Metadata

Authors
Chen, D., Tavana, O., Chu, B., Erber, L., Chen, Y., Baer, R., & Gu, W.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2017-10
Volume
68
Issue
1
Pages
224-232.e4
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2761645877
Cited by
317
References
11
FWCI
5.92
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: NRF2 Is a Major Target of ARF in p53-Independent Tumor Suppression. https://app.cochat.ai/papers/10.1016/j.molcel.2017.09.009
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Chen, D., Tavana, O., Chu, B., Erber, L., Chen, Y., Baer, R., & Gu, W. (2017). NRF2 Is a Major Target of ARF in p53-Independent Tumor Suppression. Molecular Cell. https://doi.org/10.1016/j.molcel.2017.09.009

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