Cited by 348Protein Kinase Regulation and GTPase SignalingMelanoma and MAPK PathwaysCellular transport and secretion

Genetic analysis of Ras signalling pathways in cell proliferation, migration and survival

Open access
Drosten, Matthias, Dhawahir, Alma, Sum, Eleanor Y M, Urosevic, Jelena, Lechuga, Carmen G, Esteban, Luis M, Castellano, Esther, Guerra, Carmen +2 more·2010·The EMBO Journal

Abstract

We have used mouse embryonic fibroblasts (MEFs) devoid of Ras proteins to illustrate that they are essential for proliferation and migration, but not for survival, at least in these cells. These properties are unique to the Ras subfamily of proteins because ectopic expression of other Ras-like small GTPases, even when constitutively active, could not compensate for the absence of Ras proteins. Only constitutive activation of components of the Raf/Mek/Erk pathway was sufficient to sustain normal proliferation and migration of MEFs devoid of Ras proteins. Activation of the phosphatidylinositol 3-kinase (PI3K)/PTEN/Akt and Ral guanine exchange factor (RalGEF)/Ral pathways, either alone or in combination, failed to induce proliferation or migration of Rasless cells, although they cooperated with Raf/Mek/Erk signalling to reproduce the full response mediated by Ras signalling. In contrast to current hypotheses, Ras signalling did not induce proliferation by inducing expression of D-type Cyclins. Rasless MEFs had normal levels of Cyclin D1/Cdk4 and Cyclin E/Cdk2. However, these complexes were inactive. Inactivation of the pocket proteins or knock down of pRb relieved MEFs from their dependence on Ras signalling to proliferate.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/emboj.2010.7

Cites

60 of 60 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In mice, ablation of all RAS isoform expression causes death of adult mice within a few weeks, unlike the late effects of KRAS inactivation.

    “the ablation of all RAS isoform expression causes death of adult mice within a few weeks of induction (60, 61).”
  • The activated state of KRAS accumulating in vivo results in activation of downstream signaling pathways.

    “The activated state of KRAS accumulating in vivo results in the activation of downstream signaling pathways and is associated with tumorigenesis, aggressive disease, and poor prognosis [14, 15].”
  • Activated KRAS is associated with tumorigenesis, aggressive disease, and poor prognosis.

    “The activated state of KRAS accumulating in vivo results in the activation of downstream signaling pathways and is associated with tumorigenesis, aggressive disease, and poor prognosis [14, 15].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Drosten, M., Dhawahir, A., Sum, E. Y. M., Urosevic, J., Lechuga, C. G., Esteban, L. M., Castellano, E., Guerra, C., Santos, E., & Barbacid, M.
Affiliations
  • Spanish National Cancer Research Centre (ES)
  • Universidad de Salamanca (ES)
Corresponding author
Barbacid, Mariano
Venue
The EMBO Journal
Published
2010-02-11
Volume
29
Issue
6
Pages
1091-1104
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2113609800
Cited by
347
References
60
Citations by year
2026: 19 · 2025: 24 · 2024: 33 · 2023: 22 · 2022: 35 · 2021: 38 · 2020: 23 · 2019: 13 · 2018: 23 · 2017: 21 · 2016: 11 · 2015: 15 · 2014: 9 · 2013: 17 · 2012: 25
FWCI
7.81
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
Ras signaling, Ras proteins, cell proliferation, cell migration, cell survival, mouse embryonic fibroblasts, Raf/MEK/ERK pathway, PI3K/Akt signaling, cyclin D1/CDK4, cyclin E/CDK2, pocket proteins, retinoblastoma protein, cell cycle regulation
MeSH terms
Animals, Cell Movement, Cell Survival, Fibroblasts, Signal Transduction, ras Proteins, Phosphatidylinositol 3-Kinases, Extracellular Signal-Regulated MAP Kinases, raf Kinases, Cell Proliferation, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review