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The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Phosphatidylinositol-3-OH Kinase or RAS Pathway Mutations in Human Breast Cancer Cell Lines

Open access
Hollestelle, Antoinette, Elstrodt, Fons, Nagel, Jord H.A., Kallemeijn, Wouter W., Schutte, Mieke·2007·Molecular Cancer Research

Abstract

Constitutive activation of the phosphatidylinositol-3-OH kinase (PI3K) and RAS signaling pathways are important events in tumor formation. This is illustrated by the frequent genetic alteration of several key players from these pathways in a wide variety of human cancers. Here, we report a detailed sequence analysis of the PTEN, PIK3CA, KRAS, HRAS, NRAS, and BRAF genes in a collection of 40 human breast cancer cell lines. We identified a surprisingly large proportion of cell lines with mutations in the PI3K or RAS pathways (54% and 25%, respectively), with mutants for each of the six genes. The PIK3CA, KRAS, and BRAF mutation spectra of the breast cancer cell lines were similar to those of colorectal cancers. Unlike in colorectal cancers, however, mutational activation of the PI3K pathway was mutually exclusive with mutational activation of the RAS pathway in all but 1 of 30 mutant breast cancer cell lines (P = 0.001). These results suggest that there is a fine distinction between the signaling activators and downstream effectors of the oncogenic PI3K and RAS pathways in breast epithelium and those in other tissues. (Mol Cancer Res 2007;5(2):195–201)

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Metadata

Authors
Hollestelle, A., Elstrodt, F., Nagel, J. H. A., Kallemeijn, W. W., & Schutte, M.
Venue
Molecular Cancer Research
Published
2007-02-01
Volume
5
Issue
2
Pages
195-201
ISSN
  • 1541-7786 (ISSN-L)
  • 1557-3125
OpenAlex
W2020733170
Cited by
320
References
7
FWCI
9.34
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Phosphatidylinositol-3-OH Kinase or RAS Pathway Mutations in Human Breast Cancer Cell Lines. https://app.cochat.ai/papers/10.1158/1541-7786.mcr-06-0263
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Hollestelle, A., Elstrodt, F., Nagel, J. H. A., Kallemeijn, W. W., & Schutte, M. (2007). Phosphatidylinositol-3-OH Kinase or RAS Pathway Mutations in Human Breast Cancer Cell Lines. Molecular Cancer Research. https://doi.org/10.1158/1541-7786.mcr-06-0263

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