Cited by 207Cancer-related Molecular PathwaysCell death mechanisms and regulationRedox biology and oxidative stress

The ferredoxin reductase gene is regulated by the p53 family and sensitizes cells to oxidative stress-induced apoptosis

Liu, Gang, Chen, Xinbin·2002·Oncogene

Abstract

The p53 tumor suppressor protein, a transcription factor, induces cell cycle arrest and apoptosis via the upregulation of downstream target genes. Ferredoxin Reductase (protein, FR; gene, FDXR) transfers electron from NADPH to cytochrome P450 via ferredoxin in mitochondria. Here, we identified FDXR as a target gene of the p53 family, that is, p53, p63, and p73. We found that FDXR can be induced by DNA damage in cells in a p53-dependent manner and by a mutated form of p53 that is competent in inducing apoptosis. In addition, we identified a p53 response element located within the FDXR promoter that is responsive to wild-type p53, p63alpha, p63gamma, p73alpha, and p73beta. Furthermore, we showed that p53, p63alpha and p73alpha directly bind to the p53 response element in vivo and promote the accessibility of the FDXR promoter by increasing the acetylation of histones H3 and H4. To determine the role of FR in p53 tumor suppression, we generated cell lines that express FR using a tetracycline-regulated promoter. We found that over-expression of FR in lung H1299, breast MCF7, and colorectal HCT116 carcinoma cells have no effect on cell proliferation. However, we showed that FR increases the sensibility of H1299 and HCT116 cells to 5-fluorouracil-, doxorubicin- and H(2)O(2)- mediated apoptosis. Our data support a model of feed-forward loop for p53 activity, that is, various cellular stresses, including reactive oxygen species (ROS), activate p53, which induces the expression of FDXR; and the FDXR gene product, FR, in turn sensitizes cells to ROS-mediated apoptosis.

Integrity signals

Registry

Crossref · 10.1038/sj.onc.1205862

Cites

39 of 39 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The p53 target FDXR encodes a mitochondrial flavoprotein that initiates electron transport for cytochromes P450, which receive electrons from NADPH.

    “The p53 target FDXR encodes a mitochondrial flavoprotein that initiates electron transport for cytochromes P450, which receive electrons from NADPH.202”

    From Census and evaluation of p53 target genes (2017) · cites this paper as [202]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liu, G., & Chen, X.
Affiliations
University of Alabama at Birmingham (US)
Corresponding author
Chen, Xinbin
Venue
Oncogene
Published
2002-10-09
Volume
21
Issue
47
Pages
7195-7204
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W2037509005
Cited by
207
References
39
Citations by year
2026: 9 · 2025: 11 · 2024: 6 · 2023: 13 · 2022: 12 · 2021: 11 · 2020: 4 · 2019: 8 · 2018: 4 · 2017: 7 · 2016: 7 · 2015: 8 · 2014: 4 · 2013: 8 · 2012: 7
FWCI
2.82
Type
journal article
Language
en
Open access
closed
Locations
  • Oncogene (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (R01 CA81237, CA76069, R01CA081237)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
ferredoxin reductase, p53 family, p63, p73, p53 response elements, transcriptional regulation, DNA damage response, histone acetylation, oxidative stress, apoptosis, reactive oxygen species, 5-fluorouracil, doxorubicin, hydrogen peroxide, tumor suppressor, feed-forward loop, gene overexpression
MeSH terms
Tumor Protein p73, Cell Cycle, DNA-Binding Proteins, Doxorubicin, Ferredoxin-NADP Reductase, Fluorouracil, Humans, Membrane Proteins, Nuclear Proteins, Phosphoproteins, Promoter Regions, Genetic, Protein Binding, Transcription Factors, Tumor Cells, Cultured, Trans-Activators, Gene Expression Regulation, Neoplastic, Genes, Tumor Suppressor, Tumor Suppressor Protein p53, Apoptosis, Oxidative Stress, Response Elements, Tumor Suppressor Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review