Cited by 395Protein Kinase Regulation and GTPase SignalingProtease and Inhibitor MechanismsDevelopmental Biology and Gene Regulation

JNK‐ and Fos‐regulated Mmp1 expression cooperates with Ras to induce invasive tumors in Drosophila

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Uhlirova, Mirka, Bohmann, Dirk·2006·The EMBO Journal

Abstract

Loss of the epithelial polarity gene scribble in clones of Drosophila imaginal disc cells can cooperate with Ras signaling to induce malignant tumors. Such mutant tissue overproliferates, resists apoptosis, leaves its place of origin and invades other organs, ultimately causing lethality. We show that increased Jun N-terminal kinase (JNK) signaling resulting from the loss of scribble promotes the movement of transformed cells to secondary sites. This effect requires Fos-dependent transcriptional activation of a matrix metalloprotease gene mmp1 downstream of JNK. Expression of the Mmp inhibitor Timp or Mmp RNAi knockdown suppresses cell invasiveness. The proinvasive function of the JNK pathway is revealed in a tumor context when active Ras signaling prevents the apoptotic response to JNK activity as it occurs in nontransformed cells. Based on these results, we present a model that explains the oncogenic cooperation between JNK and Ras, and describes how aberrant regulation of cell survival, proliferation and mobilization cooperate to incite malignant tumor formation.

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  1. [18]18. Hyun J, Becam I, Yanicostas C, Bohmann D (2006) Control of G2/M transition by Drosophila Fos. Mol Cell Biol (in press)

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Authors
Uhlirova, M., & Bohmann, D.
Affiliations
University of Rochester Medicine (US)
Corresponding author
Bohmann, Dirk
Venue
The EMBO Journal
Published
2006-11-02
Volume
25
Issue
22
Pages
5294-5304
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2154073936
Cited by
395
References
62
Citations by year
2026: 13 · 2025: 29 · 2024: 25 · 2023: 17 · 2022: 25 · 2021: 20 · 2020: 23 · 2019: 23 · 2018: 31 · 2017: 21 · 2016: 24 · 2015: 27 · 2014: 25 · 2013: 18 · 2012: 17
FWCI
3.53
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Eye Institute (R01EY014624)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
JNK signaling, MMP-1, matrix metalloproteinases, Ras signaling, tumor invasion, Scribble, epithelial polarity, Drosophila imaginal discs, oncogene cooperation, apoptosis resistance, cell proliferation, tissue inhibitors of metalloproteinases, tumor suppressor
MeSH terms
Animals, Cell Movement, Cell Survival, Disease Models, Animal, Drosophila, Membrane Proteins, Models, Biological, Mutation, Neoplasm Invasiveness, Signal Transduction, Cell Polarity, Apoptosis, ras Proteins, Tissue Inhibitor of Metalloproteinases, Matrix Metalloproteinase 1, Drosophila Proteins, JNK Mitogen-Activated Protein Kinases, Cell Proliferation

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