Cited by 331Cancer-related Molecular PathwaysCell death mechanisms and regulationRedox biology and oxidative stress

Influence of Induced Reactive Oxygen Species in p53-Mediated Cell Fate Decisions

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Macip, Salvador, Igarashi, Makoto, Berggren, Petra, Yu, Jian, Lee, Sam W., Aaronson, Stuart A.·2003·Molecular and Cellular Biology

Abstract

The p53 tumor suppressor gene can induce either apoptosis or a permanent growth arrest (also termed senescence) phenotype in response to cellular stresses. We show that the increase in intracellular reactive oxygen species (ROS) associated with the magnitude of p53 protein expression correlated with the induction of either senescence or apoptosis in both normal and cancer cells. ROS inhibitors ameliorated both p53-dependent cell fates, implicating ROS accumulation as an effector in each case. The absence of Bax or PUMA strongly inhibited both p53-induced apoptosis and ROS increase, indicating an important role these p53 targets affecting mitochondrial function genes in p53-mediated ROS accumulation. Moreover, physiological p53 levels in combination with an exogenous ROS source were able to convert a p53 senescence response into apoptosis. All of these findings establish a critical role of ROS accumulation and mitochondrial function in p53-dependent cell fates and show that other ROS inducers can collaborate with p53 to influence these fate decisions. Thus, our studies imply that therapeutic agents that generate ROS are more likely to be toxic for normal cells than p53-negative tumor cells and provide a rationale for identifying therapeutic agents that do not complement p53 in ROS generation to ameliorate the cytotoxic side effects in normal cells.

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Crossref · 10.1128/mcb.23.23.8576-8585.2003

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  • Significantly elevated p53 is directly associated with high ROS levels and the mechanism of apoptosis, whereas a mild increase in p53 expression is associated with cell senescence accompanied by a small increase in oxidative stress.

    “Whereas significantly elevated p53 is directly associated with high ROS levels and the mechanism of apoptosis, a mild increase in p53 expression is associated with cell senescence accompanied by a small increase in oxidative stress (Macip et al. 2003).”

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Authors
Macip, S., Igarashi, M., Berggren, P., Yu, J., Lee, S. W., & Aaronson, S. A.
Affiliations
  • Icahn School of Medicine at Mount Sinai (US)
  • UPMC Hillman Cancer Center (US)
  • Beth Israel Deaconess Medical Center (US)
Corresponding author
Aaronson, Stuart A.
Venue
Molecular and Cellular Biology
Published
2003-12-01
Volume
23
Issue
23
Pages
8576-8585
ISSN
  • 0270-7306 (ISSN-L)
  • 1098-5549
OpenAlex
W2100550784
Cited by
331
References
59
Citations by year
2026: 2 · 2025: 8 · 2024: 7 · 2023: 8 · 2022: 16 · 2021: 14 · 2020: 14 · 2019: 16 · 2018: 19 · 2017: 16 · 2016: 12 · 2015: 11 · 2014: 23 · 2013: 21 · 2012: 19
FWCI
6.58
Type
journal article
Language
en
Open access
Locations
  • Molecular and Cellular Biology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Leicester Research Archive (University of Leicester) (submittedVersion)
Funders
  • Johns Hopkins University (HCT116)
  • Cancerfonden
  • National Institutes of Health (5r01ca082211-04, CA80058)
  • National Cancer Institute (R01CA078356, CA 80058, CA82211, CA85214, R01CA085214, P01CA080058, CA78356)
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
p53, reactive oxygen species, cellular senescence, apoptosis, cell fate determination, Bax, PUMA, mitochondrial function, cancer therapy toxicity
MeSH terms
Base Sequence, Cell Line, DNA, Humans, Male, Mitochondria, Phenotype, Prostatic Neoplasms, Proto-Oncogene Proteins, Genes, p53, Tumor Suppressor Protein p53, Cellular Senescence, Apoptosis, Reactive Oxygen Species, Oxidative Stress, Proto-Oncogene Proteins c-bcl-2, Cell Line, Tumor, Apoptosis Regulatory Proteins, bcl-2-Associated X Protein

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