Cited by 1,610Cancer-related Molecular PathwaysHeat shock proteins researchCell death mechanisms and regulation

Modes of p53 regulation.

Open access
Kruse, Jan-Philipp, Gu, Wei·2009·Cell

Abstract

The traditional view of p53 activation includes three steps-p53 stabilization, DNA binding, and transcriptional activation. However, recent studies indicate that each step of p53 activation is more complex than originally anticipated. Moreover, both genetic studies in mice and in vitro studies with purified components suggest that the classical model may not be sufficient to explain all aspects of p53 activation in vivo. To reconcile these differences, we propose that antirepression, the release of p53 from repression by factors such as Mdm2 and MdmX, is a key step in the physiological activation of p53.

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Crossref · 10.1016/j.cell.2009.04.050

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  • Activation of p53 is dependent on various post-translational modifications such as phosphorylation, methylation, acetylation, sumoylation, ubiquitination, and neddylation.

    “Activation of p53 is dependent on various post translational modifications such as phosphorylation, methylation, acetylation, sumoylation, ubiquitination, and neddylation (Kruse and Gu, 2009).”
  • Mdm2 and Mdmx have been detected at p53-responsive promoter elements in chromatin.

    “This transcriptional antagonism can take place within the nucleus, as Mdm2 and Mdmx have been detected at p53-responsive promoter elements in chromatin [2].”

    From The p53 orchestra: Mdm2 and Mdmx set the tone (2010) · cites this paper as [2]

  • MDM2 is an E3 ubiquitin ligase that acts as a powerful inhibitor of tumor suppressor P53.

    “MDM2 is a known E3 ubiquitin ligase that acts as a powerful inhibitor of the tumor suppressor P53 [141].”

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Authors
Kruse, J.-P., & Gu, W.
Affiliations
Columbia University (US)
Corresponding author
Gu, Wei
ORCID
Gu, Wei
Venue
Cell
Publisher
Elsevier BV
Published
2009-05
Volume
137
Issue
4
Pages
609-622
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2025722611
Cited by
1,610
References
152
Citations by year
2026: 31 · 2025: 49 · 2024: 52 · 2023: 57 · 2022: 81 · 2021: 98 · 2020: 75 · 2019: 73 · 2018: 100 · 2017: 98 · 2016: 102 · 2015: 108 · 2014: 142 · 2013: 127 · 2012: 128
FWCI
12.22
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (2r01ca085533-16)
  • National Cancer Institute (R01-CA085533, R01CA131439, P01CA097403, R01CA104843, P01CA080058, R01CA098821, R01CA129627)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
p53 activation, p53 regulation, MDM2, MDMX, p53 stabilization, DNA binding, transcriptional activation, tumor suppressor
MeSH terms
Animals, Humans, Protein Processing, Post-Translational, Gene Expression Regulation, Neoplastic, Tumor Suppressor Protein p53, Proto-Oncogene Proteins c-mdm2

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