The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
PI3K-targeted therapy can be evaded by gene amplification along the MYC-eukaryotic translation initiation factor 4E (eIF4E) axis
Open accessAbstract
The PI3K pathway is frequently activated in cancer; therefore, considerable effort is focused on identifying compounds that can inhibit specific pathway components, particularly the hallmark oncogene PIK3CA. Although targeted inhibition of a cancer survival gene holds significant promise, there are concerns that drug resistance may emerge within the cancerous cells, thus limiting clinical efficacy. Using genetically defined human mammary epithelial cells, we evolved resistance to the PI3K/mammalian target of rapamycin (mTOR) inhibitor BEZ235, and by genome-wide copy number analyses, we identified MYC and eIF4E amplification within the resistant cells. Importantly, either MYC or eukaryotic translation initiation factor 4E (eIF4E) was required to bypass pharmacological PI3K/mTOR inhibition in resistant cells. Furthermore, these cells displayed elevated 5′ cap-dependent protein translation. Collectively, these findings suggest that analysis of drivers of protein translation could facilitate the identification of cancer lesions that confer resistance to PI3K pathway-targeted drugs.
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Cited by
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Metadata
- Authors
- Ilic, N., Utermark, T., Widlund, H. R., & Roberts, T. M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2011-08-29
- Volume
- 108
- Issue
- 37
- Pages
- E699-708
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1968852924
- Cited by
- 211
- References
- 14
- FWCI
- 8.93
- Type
- journal article
- Language
- en
- Open access
- green
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- Ilic, N., Utermark, T., Widlund, H. R., & Roberts, T. M. (2011). PI3K-targeted therapy can be evaded by gene amplification along the MYC-eukaryotic translation initiation factor 4E (eIF4E) axis. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1108237108
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