Cited by 386Cancer-related Molecular PathwaysUbiquitin and proteasome pathwaysHeat shock proteins research

Accelerated MDM2 auto‐degradation induced by DNA‐damage kinases is required for p53 activation

Open access
Stommel, Jayne M, Wahl, Geoffrey M·2004·The EMBO Journal

Abstract

p53 activation prevents the proliferation of genetically unstable cells. Conversely, p53 antagonism by its transcriptional target, the E3 ubiquitin ligase MDM2, is critical for the viability of unstressed, cycling cells. We demonstrate that MDM2 induces the degradation of p53 in both the nucleus and the cytoplasm. As p53 and MDM2 accumulate in the nuclei of stressed cells, we investigated mechanisms enabling p53 activation despite the high MDM2 levels generated during a DNA-damage response. We show that DNA damage destabilized MDM2 by a mechanism involving damage-activated kinases and MDM2 auto-ubiquitination. p53 was stable and transcriptionally active when MDM2 was unstable, but became unstable and inactive as the damage response waned and MDM2 stabilized. Importantly, blocking MDM2 destabilization in DNA-damaged cells prevented p53 target gene activation. Our data reveal that controlled MDM2 degradation is an important new step in p53 regulation.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/sj.emboj.7600145

Cites

54 of 54 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Mdm2 undergoes auto-degradation and targets Mdmx for degradation, which is critical for optimal p53 activation after stress.

    “However, in addition to degrading p53, Mdm2 also undergoes auto-degradation [12,13] and targets Mdmx for degradation [14–16], which is critical for optimal p53 activation after stress.”

    From The p53 orchestra: Mdm2 and Mdmx set the tone (2010) · cites this paper as [12]

  • Disruption of Mdm2 oligomers might also contribute to their destabilization following DNA damage.

    “The disruption of Mdm2 oligomers might also contribute to their destabilization following DNA damage [12].”

    From The p53 orchestra: Mdm2 and Mdmx set the tone (2010) · cites this paper as [12]

  • DNA damage also accelerates MDM2 degradation through a mechanism requiring its own RING domain.

    “A recent study showed that DNA damage also accelerates MDM2 degradation through a mechanism that requires its own RING domain (Stommel and Wahl, 2004).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Stommel, J. M., & Wahl, G. M.
Affiliations
Salk Institute for Biological Studies (US)
Corresponding author
Wahl, Geoffrey M
Venue
The EMBO Journal
Published
2004-03-18
Volume
23
Issue
7
Pages
1547-1556
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2091818021
Cited by
386
References
54
Citations by year
2026: 3 · 2025: 7 · 2024: 9 · 2023: 13 · 2022: 10 · 2021: 16 · 2020: 13 · 2019: 19 · 2018: 10 · 2017: 9 · 2016: 8 · 2015: 15 · 2014: 21 · 2013: 13 · 2012: 24
FWCI
11.03
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • National Institutes of Health
  • National Cancer Institute (CA61449, R01CA061449)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
Keywords
MDM2, p53 activation, DNA damage response, E3 ubiquitin ligase, p53 stabilization, cell cycle arrest
MeSH terms
Animals, Cell Line, Cell Nucleus, Cytoplasm, DNA Damage, Gene Expression Regulation, Humans, Nuclear Proteins, Proto-Oncogene Proteins, Transcription, Genetic, Transcriptional Activation, Tumor Suppressor Protein p53, Phosphatidylinositol 3-Kinases, Active Transport, Cell Nucleus, Proteasome Endopeptidase Complex, Mice, Proto-Oncogene Proteins c-mdm2, Proteasome Inhibitors

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