Cited by 523Cancer, Hypoxia, and MetabolismRedox biology and oxidative stressCancer and biochemical research

HIF-Dependent Antitumorigenic Effect of Antioxidants In Vivo

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Gao, Ping, Zhang, Huafeng, Dinavahi, Ramani, Li, Feng, Xiang, Yan, Raman, Venu, Bhujwalla, Zaver M., Felsher, Dean W. +5 more·2007·Cancer Cell

Abstract

The antitumorigenic activity of antioxidants has been presumed to arise from their ability to squelch DNA damage and genomic instability mediated by reactive oxygen species (ROS). Here, we report that antioxidants inhibited three tumorigenic models in vivo. Inhibition of a MYC-dependent human B lymphoma model was unassociated with genomic instability but was linked to diminished hypoxia-inducible factor (HIF)-1 levels in a prolyl hydroxylase 2 and von Hippel-Lindau protein-dependent manner. Ectopic expression of an oxygen-independent, stabilized HIF-1 mutant rescued lymphoma xenografts from inhibition by two antioxidants: N-acetylcysteine and vitamin C. These findings challenge the paradigm that antioxidants diminish tumorigenesis primarily through decreasing DNA damage and mutations and provide significant support for a key antitumorigenic effect of diminishing HIF levels.

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Crossref · 10.1016/j.ccr.2007.08.004

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Authors
Gao, P., Zhang, H., Dinavahi, R., Li, F., Xiang, Y., Raman, V., Bhujwalla, Z. M., Felsher, D. W., Cheng, L., Pevsner, J., Lee, L. A., Semenza, G. L., & Dang, C. V.
Affiliations
  • Johns Hopkins University (US)
  • Stanford Medicine (US)
Corresponding author
Dang, Chi V.
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2007-09
Volume
12
Issue
3
Pages
230-238
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2143182501
Cited by
523
References
41
Citations by year
2026: 8 · 2025: 15 · 2024: 15 · 2023: 28 · 2022: 25 · 2021: 36 · 2020: 21 · 2019: 23 · 2018: 23 · 2017: 38 · 2016: 32 · 2015: 26 · 2014: 46 · 2013: 22 · 2012: 30
FWCI
11.63
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R01CA057341, CA91596, CA 51497, P50CA103175, R37CA051497, R01CA091596, R01CA051497)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer and biochemical research
Keywords
antioxidants, HIF-1, anti-tumorigenic effects, prolyl hydroxylase 2, von Hippel-Lindau protein, N-acetylcysteine, vitamin C, reactive oxygen species, genomic instability, DNA damage, lymphoma xenografts
MeSH terms
Acetylcysteine, Animals, Antineoplastic Agents, Antioxidants, Ascorbic Acid, Cell Line, Humans, Mice, Transgenic, Mutation, Genomic Instability, Mice, Hypoxia-Inducible Factor 1

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