Cited by 553Cancer-related Molecular PathwaysLung Cancer Research StudiesChromatin Remodeling and Cancer

The Differential Effects of Mutant p53 Alleles on Advanced Murine Lung Cancer

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Jackson, Erica L., Olive, Kenneth P., Tuveson, David A., Bronson, Roderick, Crowley, Denise, Brown, Michael, Jacks, Tyler·2005·Cancer Research

Abstract

We report a direct comparison of the differential effects of individual p53 mutations on lung tumor growth and progression, and the creation of a murine model of spontaneous advanced lung adenocarcinoma that closely recapitulates several aspects of advanced human pulmonary adenocarcinoma. We generated compound conditional knock-in mice with mutations in K-ras combined with one of three p53 alleles: a contact mutant, a structural mutant, or a null allele. p53 loss strongly promoted the progression of K-ras–induced lung adenocarcinomas, yielding a mouse model that is strikingly reminiscent of advanced human lung adenocarcinoma. The influence of p53 loss on malignant progression was observed as early as 6 weeks after tumor initiation. Furthermore, we found that the contact mutant p53R270H, but not the structural mutant p53R172H, acted in a partially dominant-negative fashion to promote K-ras–initiated lung adenocarcinomas. However, for both mutants, loss-of-heterozygosity occurred uniformly in advanced tumors, highlighting a residual tumor-suppressive function conferred by the remaining wild-type allele of p53. Finally, a subset of mice also developed sinonasal adenocarcinomas. In contrast to the lung tumors, expression of the point-mutant p53 alleles strongly promoted the development of sinonasal adenocarcinomas compared with simple loss-of-function, suggesting a tissue-specific gain-of-function.

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Crossref · 10.1158/0008-5472.can-05-2193

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  • Loss of p53 or expression of dominant negative or gain-of-function Trp53 mutants co-operate with oncogenic Kras to induce LUADs with shortened latency and increased metastatic proclivity, although these tumors are less aggressive than those with Lkb1 loss.

    “Loss of p53 or expression of either dominant negative or dominant gain-of-function Trp53 mutants also co-operate with oncogenic Kras to induce LUADs with shortened latency and increased metastatic proclivity, although these tumors are less aggressive than those with Lkb1 loss69–71, 84.”

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  1. Cre/lox controlled sporadic activation of the K-Ras oncogene. Oncogene 2001;20:6551-8.

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Authors
Jackson, E. L., Olive, K. P., Tuveson, D. A., Bronson, R., Crowley, D., Brown, M., & Jacks, T.
Affiliations
  • Massachusetts Institute of Technology (US)
  • University of Pennsylvania (US)
  • Tufts University (US)
  • Howard Hughes Medical Institute (US)
Venue
Cancer Research
Published
2005-11-15
Volume
65
Issue
22
Pages
10280-10288
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2032019019
Cited by
553
References
33
Citations by year
2026: 23 · 2025: 28 · 2024: 27 · 2023: 44 · 2022: 25 · 2021: 39 · 2020: 29 · 2019: 23 · 2018: 32 · 2017: 34 · 2016: 26 · 2015: 32 · 2014: 35 · 2013: 27 · 2012: 27
FWCI
5.75
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Association for Cancer Research
  • Pancreatic Cancer Action Network
  • National Cancer Institute
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Health Sciences › Medicine › Oncology › Lung Cancer Research Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
TP53 mutation, lung adenocarcinoma, KRAS, conditional knock-in mice, dominant-negative p53, loss of heterozygosity, tumor progression, sinonasal adenocarcinoma
MeSH terms
Adenocarcinoma, Alleles, Animals, Lung Neoplasms, Mutation, Paranasal Sinus Neoplasms, Up-Regulation, Genes, p53, Tumor Suppressor Protein p53, Disease Progression, Loss of Heterozygosity, MAP Kinase Signaling System, raf Kinases, Mice

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