Cited by 213Telomeres, Telomerase, and SenescencePI3K/AKT/mTOR signaling in cancerProtein Kinase Regulation and GTPase Signaling

Activation of the PIK3CA/AKT Pathway Suppresses Senescence Induced by an Activated RAS Oncogene to Promote Tumorigenesis

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Kennedy, Alyssa L., Morton, Jennifer P., Manoharan, Indrani, Nelson, David M., Jamieson, Nigel B., Pawlikowski, Jeff S., McBryan, Tony, Doyle, Brendan +6 more·2011·Molecular Cell

Abstract

Mutations in both RAS and the PTEN/PIK3CA/AKT signaling module are found in the same human tumors. PIK3CA and AKT are downstream effectors of RAS, and the selective advantage conferred by mutation of two genes in the same pathway is unclear. Based on a comparative molecular analysis, we show that activated PIK3CA/AKT is a weaker inducer of senescence than is activated RAS. Moreover, concurrent activation of RAS and PIK3CA/AKT impairs RAS-induced senescence. In vivo, bypass of RAS-induced senescence by activated PIK3CA/AKT correlates with accelerated tumorigenesis. Thus, not all oncogenes are equally potent inducers of senescence, and, paradoxically, a weak inducer of senescence (PIK3CA/AKT) can be dominant over a strong inducer of senescence (RAS). For tumor growth, one selective advantage of concurrent mutation of RAS and PTEN/PIK3CA/AKT is suppression of RAS-induced senescence. Evidence is presented that this new understanding can be exploited in rational development and targeted application of prosenescence cancer therapies.

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Crossref · 10.1016/j.molcel.2011.02.020

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  1. Collado M Gil J Efeyan A Guerra C Schuhmacher AJ Barradas M Benguria A Zaballos A Flores JM Barbacid M Tumour biology: senescence in premalignant tumours Nature 2005 436 642 16079833
  2. Parsons DW Wang TL Samuels Y Bardelli A Cummins JM DeLong L Silliman N Ptak J Szabo S Willson JK Colorectal cancer: mutations in a signalling pathway Nature 2005 436 792 16094359

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Authors
Kennedy, A. L., Morton, J. P., Manoharan, I., Nelson, D. M., Jamieson, N. B., Pawlikowski, J. S., McBryan, T., Doyle, B., McKay, C., Oien, K. A., Enders, G. H., Zhang, R., Sansom, O. J., & Adams, P. D.
Affiliations
  • Fox Chase Cancer Center (US)
  • Cancer Research UK Scotland Institute (GB)
  • University of Glasgow (GB)
  • Glasgow Royal Infirmary (GB)
Corresponding author
  • Sansom, Owen J.
  • Adams, Peter D.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2011-04
Volume
42
Issue
1
Pages
36-49
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2128124648
Cited by
213
References
58
Citations by year
2026: 7 · 2025: 5 · 2024: 8 · 2023: 10 · 2022: 10 · 2021: 17 · 2020: 16 · 2019: 15 · 2018: 14 · 2017: 17 · 2016: 10 · 2015: 17 · 2014: 20 · 2013: 26 · 2012: 13
FWCI
14.62
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
Funders
  • Cancer Research UK (C10652/A10250, 12481)
  • National Institutes of Health
  • National Institute of General Medical Sciences (R01GM062281)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
oncogenic Ras, cellular senescence, senescence bypass, carcinogenesis, PTEN, oncogene cooperation, PIK3CA mutation, Akt activation
MeSH terms
Aged, Animals, Cell Line, Transformed, Disease Models, Animal, Enzyme Activation, Female, Humans, Male, Mice, Transgenic, Middle Aged, Mutation, Neoplasms, Pancreatic Neoplasms, Genes, ras, Signal Transduction, Gene Expression Regulation, Neoplastic, Cellular Senescence, Mice, Knockout, Phosphatidylinositol 3-Kinases, Cell Proliferation, Proto-Oncogene Proteins c-akt, PTEN Phosphohydrolase, Mice, Class I Phosphatidylinositol 3-Kinases

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