Cited by 1,820Cancer-related Molecular PathwaysTelomeres, Telomerase, and SenescenceCell death mechanisms and regulation

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Restoration of p53 function leads to tumour regression in vivo

Abstract

Tumorigenesis is a multi-step process that requires activation of oncogenes and inactivation of tumour suppressor genes. Mouse models of human cancers have recently demonstrated that continuous expression of a dominantly acting oncogene (for example, Hras, Kras and Myc) is often required for tumour maintenance; this phenotype is referred to as oncogene addiction. This concept has received clinical validation by the development of active anticancer drugs that specifically inhibit the function of oncoproteins such as BCR-ABL, c-KIT and EGFR. Identifying additional gene mutations that are required for tumour maintenance may therefore yield clinically useful targets for new cancer therapies. Although loss of p53 function is a common feature of human cancers, it is not known whether sustained inactivation of this or other tumour suppressor pathways is required for tumour maintenance. To explore this issue, we developed a Cre-loxP-based strategy to temporally control tumour suppressor gene expression in vivo. Here we show that restoring endogenous p53 expression leads to regression of autochthonous lymphomas and sarcomas in mice without affecting normal tissues. The mechanism responsible for tumour regression is dependent on the tumour type, with the main consequence of p53 restoration being apoptosis in lymphomas and suppression of cell growth with features of cellular senescence in sarcomas. These results support efforts to treat human cancers by way of pharmacological reactivation of p53.

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Crossref · 10.1038/nature05541

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31 of 31 references verified0 citation errors · 0 not checkable

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Metadata

Authors
Ventura, A., Kirsch, D. G., McLaughlin, M. E., Tuveson, D. A., Grimm, J., Lintault, L., Newman, J., Reczek, E. E., Weissleder, R., & Jacks, T.
Affiliations
  • Massachusetts Institute of Technology (US)
  • Massachusetts General Hospital (US)
  • Harvard University (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Jacks, Tyler
Venue
Nature
Published
2007-01-24
Volume
445
Issue
7128
Pages
661-665
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2154799239
Cited by
1,820
References
31
Citations by year
2026: 44 · 2025: 78 · 2024: 83 · 2023: 77 · 2022: 96 · 2021: 94 · 2020: 78 · 2019: 83 · 2018: 80 · 2017: 100 · 2016: 95 · 2015: 99 · 2014: 113 · 2013: 108 · 2012: 104
FWCI
60.89
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
p53 reactivation, tumor regression, tumor suppressor, cellular senescence, innate immune response, tumor clearance, oncogene addiction, sarcoma, apoptosis
MeSH terms
Alleles, Animals, Cell Division, Disease Models, Animal, Humans, Lymphoma, Neoplasms, Organ Specificity, Sarcoma, Tumor Suppressor Protein p53, Cellular Senescence, Apoptosis, Mice

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