Cited by 131Protein Kinase Regulation and GTPase SignalingProtein Tyrosine PhosphatasesDevelopmental Biology and Gene Regulation

Sprouty-2 regulates oncogenic K-ras in lung development and tumorigenesis

Open access
Shaw, Alice T., Meissner, Alexander, Dowdle, James A., Crowley, Denise, Magendantz, Margaret, Ouyang, Chensi, Parisi, Tiziana, Rajagopal, Jayaraj +6 more·2007·Genes & Development

Abstract

Somatic activation of Ras occurs frequently in human cancers, including one-third of lung cancers. Activating Ras mutations also occur in the germline, leading to complex developmental syndromes. The precise mechanism by which Ras activation results in human disease is uncertain. Here we describe the phenotype of a mouse engineered to harbor a germline oncogenic K-ras G12D mutation. This mouse exhibits early embryonic lethality due to a placental trophoblast defect. Reconstitution with a wild-type placenta rescues the early lethality, but mutant embryos still succumb to cardiovascular and hematopoietic defects. In addition, mutant embryos demonstrate a profound defect in lung branching morphogenesis associated with striking up-regulation of the Ras/mitogen-activated protein kinase (MAPK) antagonist Sprouty-2 and abnormal localization of MAPK activity within the lung epithelium. This defect can be significantly suppressed by lentiviral short hairpin RNA (shRNA)-mediated knockdown of Sprouty-2 in vivo. Furthermore, in the context of K-ras G12D -mediated lung tumorigenesis, Sprouty-2 is also up-regulated and functions as a tumor suppressor to limit tumor number and overall tumor burden. These findings indicate that in the lung, Sprouty-2 plays a critical role in the regulation of oncogenic K-ras, and implicate counter-regulatory mechanisms in the pathogenesis of Ras-based disease.

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 · 10.1101/gad.1526207

Cites

49 of 49 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?

  • Oncogenic Ras activation has been shown to increase the expression of Spry2, providing feedback inhibition of Ras activation.

    “Oncogenic Ras activation has been shown to increase the expression of Spry2, providing feedback inhibition of Ras activation (Shaw et al., 2007).”

    From Modulation of K-Ras-Dependent Lung Tumorigenesis by MicroRNA-21 (2010) · cites this paper as Shaw et al., 2007

    In “Negative feedback signaling in development” (page not available), the paper reports that oncogenic K-ras up-regulates Spry-2 and that Spry-2 inhibits MAPK activation. It does not establish that Spry-2 inhibits activation of Ras itself; it describes possible effects at different points in the Ras/MAPK pathway, including downstream of activated K-ras. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • SPRY2 negatively regulates Ras/MEK/ERK signaling and is a tumor suppressor in NSCLC in both mice and humans.

    “SPRY2, in turn, negatively regulates Ras/MEK/ERK signaling and is a tumor suppressor in NSCLC in both mice (Minowada and Miller, 2004; Minowada and Miller, 2009; Shaw et al., 2007) and humans (Sutterluty et al., 2007).”

    From Modulation of K-Ras-Dependent Lung Tumorigenesis by MicroRNA-21 (2010) · cites this paper as Shaw et al., 2007

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

Research works printed but not linked: 1

  1. Wilkinson, D.G. 1992. Whole mount in situ hybridization of vertebrate embryos. In In situ hybridization (ed. D.G. Wilkinson), pp. 75-83. IRL Press Oxford University, New York.

Cited by

Sorted by citations

Authors
Shaw, A. T., Meissner, A., Dowdle, J. A., Crowley, D., Magendantz, M., Ouyang, C., Parisi, T., Rajagopal, J., Blank, L. J., Bronson, R. T., Stone, J. R., Tuveson, D. A., Jaenisch, R., & Jacks, T.
Affiliations
  • Harvard University (US)
  • Whitehead Institute for Biomedical Research (US)
  • Massachusetts Institute of Technology (US)
  • Howard Hughes Medical Institute (US)
  • Tufts University (US)
Corresponding author
Jacks, Tyler
Venue
Genes & Development
Published
2007-03-15
Volume
21
Issue
6
Pages
694-707
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2102049157
Cited by
131
References
49
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 5 · 2022: 3 · 2021: 4 · 2020: 2 · 2019: 5 · 2018: 3 · 2017: 3 · 2016: 9 · 2015: 11 · 2014: 6 · 2013: 9 · 2012: 7
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • The Mouseion at the JAXlibrary (Jackson Laboratory) (submittedVersion)
Funders
  • Howard Hughes Medical Institute (P30-CA14051)
  • Damon Runyon Cancer Research Foundation
  • National Cancer Institute (5K08CA111634-2, 5-U01-CA84306-06, CA14051, U01CA084306, K08CA111634, P30CA014051, P30-CA-14051)
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 › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
Sprouty2, KRAS G12D, lung development, lung carcinogenesis, lung branching morphogenesis, MAPK signaling, tumor suppressor, embryonic lethality, cardiovascular defects, hematopoietic defects
MeSH terms
Animals, Base Sequence, Female, Humans, Lung, Lung Neoplasms, Membrane Proteins, Mice, Transgenic, Pregnancy, Genes, ras, RNA, Gene Expression Regulation, Neoplastic, Protein Serine-Threonine Kinases, Germ-Line Mutation, Mice, Knockout, Gene Expression Regulation, Developmental, MAP Kinase Signaling System, Embryo Loss, Intracellular Signaling Peptides and Proteins, Adaptor Proteins, Signal Transducing, 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