Cited by 151Protein Kinase Regulation and GTPase SignalingMelanoma and MAPK PathwaysProtein Tyrosine Phosphatases

C-Raf Is Required for the Initiation of Lung Cancer by K-RasG12D

Open access
Karreth, Florian A., Frese, Kristopher K., DeNicola, Gina M., Baccarini, Manuela, Tuveson, David A.·2011·Cancer Discovery

Published version of a preprint

Abstract

Abstract The Ras/Raf/MEK/ERK (extracellular signal–regulated kinase) pathway is primarily responsible for mitogenesis in metazoans, and mutational activation of this pathway is common in cancer. A variety of selective chemical inhibitors directed against the mitogen-activated protein kinase pathway are now available for clinical investigation and thus the determination of the importance of each of the kinases in oncogenesis is paramount. We investigated the role of two Raf kinases, B-Raf and C-Raf, in Ras oncogenesis, and found that although B-Raf and C-Raf have overlapping functions in primary mesenchymal cells, C-Raf but not B-Raf is required for the proliferative effects of K-RasG12D in primary epithelial cells. Furthermore, in a lung cancer mouse model, C-Raf is essential for tumor initiation by oncogenic K-RasG12D, whereas B-Raf is dispensable for this process. Our findings reveal that K-RasG12D elicits its oncogenic effects primarily through C-Raf and suggest that selective C-Raf inhibition could be explored as a therapeutic strategy for K-Ras–dependent cancers. Significance: Ras is one of the most prevalent oncogenes in human cancer; however, it is considered “undruggable.” Therefore, increasing our understanding of the importance of Ras effectors, including the Raf/MEK/ERK pathway, will create novel avenues for therapeutic intervention. Cancer Discovery; 1(2); 128–36. © 2011 AACR. Read the Commentary on this article by Rebocho and Marais, p. 98 This article is highlighted in the In This Issue feature, p. 91

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 · 10.1158/2159-8290.cd-10-0044

Cites

28 of 28 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?

  • C-Raf, but not B-Raf or A-Raf, may mediate the oncogenic signaling in KRAS-driven cancer.

    “Together, these studies provided compelling evidence that C-Raf, but not B-Raf or A-Raf, may mediate the oncogenic signaling in KRAS-driven cancer.”

    From New Horizons in KRAS-Mutant Lung Cancer: Dawn After Darkness (2019) · cites this paper as [75]

  • C-RAF rather than B-RAF plays a crucial role in mediating KRAS oncogenic signaling.

    “Recent studies showed that C-RAF rather than B-RAF plays a crucial role in mediating KRAS oncogenic signaling (74, 75).”

    From New Horizons in KRAS-Mutant Lung Cancer: Dawn After Darkness (2019) · cites this paper as [75]

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

1 of the 29 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Karreth, F. A., Frese, K. K., DeNicola, G. M., Baccarini, M., & Tuveson, D. A.
Affiliations
University of Vienna (AT)
Venue
Cancer Discovery
Published
2011-07-01
Volume
1
Issue
2
Pages
128-136
ISSN
  • 2159-8274 (ISSN-L)
  • 2159-8290
OpenAlex
W2133177414
Cited by
149
References
29
Citations by year
2026: 4 · 2025: 7 · 2024: 9 · 2023: 12 · 2022: 9 · 2021: 13 · 2020: 8 · 2019: 8 · 2018: 12 · 2017: 11 · 2016: 10 · 2015: 13 · 2014: 14 · 2013: 9 · 2012: 8
FWCI
4.28
Type
journal article
Language
en
Open access
Locations
  • Cancer Discovery (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
Cancer Research UK (A10211)
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 › Molecular Biology › Protein Tyrosine Phosphatases
Keywords
Raf-1, BRAF, lung cancer, RAS/MAPK pathway, carcinogenesis, tumor initiation, Raf kinase inhibition, Ras effectors, epithelial cell proliferation
MeSH terms
Animals, Cell Transformation, Neoplastic, Epithelial Cells, Fibroblasts, Lung, Lung Neoplasms, Mutation, Transformation, Genetic, ras Proteins, Proto-Oncogene Proteins c-raf, Mitogen-Activated Protein Kinases, MAP Kinase Signaling System, Extracellular Signal-Regulated MAP Kinases, Proto-Oncogene Proteins B-raf, Cell Growth Processes, Mice, Mice, 129 Strain, Mesenchymal Stem Cells

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