Cited by 127Cancer-related Molecular PathwaysPI3K/AKT/mTOR signaling in cancerGenetic factors in colorectal cancer

A High-Frequency Regulatory Polymorphism in the p53 Pathway Accelerates Tumor Development

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Post, Sean M., Quintás-Cardama, Alfonso, Pant, Vinod, Iwakuma, Tomoo, Hamir, Amir, Jackson, James G., Maccio, Daniela R., Bond, Gareth L. +3 more·2010·Cancer Cell

Abstract

MDM2, a negative regulator of p53, is elevated in many cancers that retain wild-type p53. A single nucleotide polymorphism (SNP) in the human MDM2 promoter increases the affinity of Sp1 resulting in elevated MDM2 levels. We generated mice carrying either the MDM2(SNP309T) or the MDM2(SNP309G) allele to address the impact of MDM2(SNP309G) on tumorigenesis. Mdm2(SNP309G/G) cells exhibit elevated Mdm2 levels, reduced p53 levels, and decreased apoptosis. Importantly, some Mdm2(SNP309G/G) mice succumbed to tumors before 1 year of age, suggesting that this allele increases tumor risk. Additionally, the Mdm2(SNP309G) allele potentiates the tumor phenotype and alters tumor spectrum in mice inheriting a p53 hot-spot mutation. These data provide causal evidence for increased cancer risk in carriers of the Mdm2(SNP309G) allele.

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Crossref · 10.1016/j.ccr.2010.07.010

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  • A more recent mouse model used a knock-in of a human tumour-associated MDM2 SNP at the endogenous Mdm2 locus, and data confirm that a subtle increase in MDM2 levels engenders tumorigenesis at a rate similar to Trp53-hemizygous animals.

    “However, a more recent mouse model used a knock-in of a human tumour-associated MDM2 SNP at the endogenous Mdm2 locus. Data from this model confirm that a subtle increase in MDM2 levels engenders tumorigenesis at a rate that is similar to that observed in Trp53-hemizygous animals67.”

    From MDM2, MDMX and p53 in oncogenesis and cancer therapy (2013) · cites this paper as [67]

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Authors
Post, S. M., Quintás-Cardama, A., Pant, V., Iwakuma, T., Hamir, A., Jackson, J. G., Maccio, D. R., Bond, G. L., Johnson, D. G., Levine, A. J., & Lozano, G.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • Louisiana State University (US)
  • University of Oxford (GB)
  • Institute for Advanced Study (US)
Corresponding author
Lozano, Guillermina
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2010-09
Volume
18
Issue
3
Pages
220-230
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2118075248
Cited by
127
References
42
Citations by year
2026: 5 · 2025: 3 · 2024: 3 · 2023: 2 · 2022: 5 · 2021: 3 · 2020: 8 · 2019: 7 · 2018: 5 · 2017: 5 · 2016: 13 · 2015: 13 · 2014: 11 · 2013: 10 · 2012: 17
FWCI
6.97
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Cancer Institute (CA-34936, CA-16672, F32CA119616, P01CA034936, CA46392, R01CA047296, P30CA016672)
  • National Institute of Environmental Health Sciences (R01ES015587, U01ES011047, ES015587, ES011047)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
Keywords
MDM2, p53, single nucleotide polymorphisms, cancer susceptibility, carcinogenesis, apoptosis, p53 hotspot mutations, cancer risk, mouse model
MeSH terms
Animals, Cell Transformation, Neoplastic, Humans, Plicamycin, Neoplasms, Nuclear Proteins, Promoter Regions, Genetic, RNA, Messenger, Signal Transduction, Genes, p53, Tumor Suppressor Protein p53, Sp1 Transcription Factor, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Cell Line, Tumor, Mice, Proto-Oncogene Proteins c-mdm2

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