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

Restoration of p53 function leads to tumour regression in vivo

Ventura, Andrea, Kirsch, David G., McLaughlin, Margaret E., Tuveson, David A., Grimm, Jan, Lintault, Laura, Newman, Jamie, Reczek, Elizabeth E. +2 more·2007·Nature

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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  • Some tumor cells retain the ability to senesce in response to DNA-damaging chemotherapy or p53 reactivation; in mice, this response arrests tumor progression.

    “Interestingly, some tumor cells retain the ability to senesce in response to DNA-damaging chemotherapy or p53 reactivation; in mice, this response arrests tumor progression [ 20 – 22 ].”
  • Tumors induced to senesce in mice gradually regress.

    “Recent findings show that tumors induced to senesce in mice gradually regress [ 21 , 22 ], owing perhaps to infiltration by cells of the innate immune system [ 22 ].”
  • The tumour suppressor p53-p21 axis cell-autonomously controls the OIS response, but additionally mediates communication between senescent cells and immune cells, presumably via the SASP.

    “The tumour suppressor p53-p21 axis cell- autonomously controls the OIS response, but additionally mediates communication between senescent cells and immune cells, presumably via the SASP 144-146 .”

    From Senescence and cancer — role and therapeutic opportunities (2022) · cites this paper as [144]

  • Restoration of Tp53 in mouse models of lymphoma and sarcoma led to tumour regression with features of cellular senescence, thereby implying that p53-mediated apoptosis and senescence-evoked immune clearance are the underlying mechanisms.

    “Specifically, restoration of Tp53 in mouse models of lymphoma and sarcoma led to tumour regression with features of cellular senescence, thereby implying that p53- mediated apoptosis and senescence- evoked immune clearance are the underlying mechanisms 144 .”

    From Senescence and cancer — role and therapeutic opportunities (2022) · cites this paper as [144]

  • The outcome of endogenous p53 reactivation can be senescence and/or cell death depending on the tumour type.

    “the outcome of endogenous p53 reactivation can be senescence and/or cell death depending on the tumour type 35,141,142”

    From Inside and out: the activities of senescence in cancer (2014) · cites this paper as [35]

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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
  • Health Sciences › Medicine › Physiology › 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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