Evidence map›Paper›PMID 19074613›Full record

ArticleThe American journal of pathology2009

Inhibition of AP-1 transcriptional activity blocks the migration, invasion, and experimental metastasis of murine osteosarcoma.

Virna D Leaner, Jeffrey F Chick, Howard Donninger, Ilona Linniola, Arnulfo Mendoza, Chand Khanna, Michael J Birrer

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.2field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
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  5. Article
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  7. Article
  8. Osteosarcoma and Metastasis.Frontiers in oncology · 2021
    Review
  9. Article
  10. Article
  11. Article
  12. Deciphering signaling networks in osteosarcoma pathobiology.Experimental biology and medicine (Maywood, N.J.) · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. A dominant-negative c-jun mutant inhibits lung carcinogenesis in mice.Cancer prevention research (Philadelphia, Pa.) · 2010
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 3 countries.

Virna D LeanerCell and Cancer Biology Department, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA.
Jeffrey F Chick
Howard Donninger
Ilona Linniola
Arnulfo Mendoza
Chand Khanna
Michael J Birrer
Center for Cancer Research · USNational Institutes of Health · USNational Cancer Institute · USPediatric Oncology Group · CAUniversity of Cape Town · ZA

Funding

Tumor and Metastasis BiologyZIABC010566 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI HELMAN, LEE J. · 2009 to 2017
$4.6M
Tumor and Metastasis BiologyZ01BC010566 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI KHANNA, CHAND · 2005 to 2008
$1.8M
USE OF TRANSCRIPTIONAL FACTORS AS TARGETS AND AGENTS IN CARCINOGENESISZ01SC000165 · SC · DIVISION OF CLINICAL SCIENCES - NCI · PI BIRRER, MICHAEL · 1996 to 2008
$974k
The Use of Transcriptional Factors as Targets and Agents in CarcinogenesisZIASC000165 · NCI · DIVISION OF CLINICAL SCIENCES - NCI · PI BIRRER, MICHAEL · 2009 to 2009
$187k
6 · The paper itself

Abstract

A well-characterized murine osteosarcoma model for metastasis and invasion was used in this study to determine the role of AP-1 in the progression of this disease. We analyzed K12 and K7M2 cells, two clonally related murine osteosarcoma cell lines that have been characterized as low metastatic or high metastatic, respectively, for AP-1 components and activity. AP-1 DNA binding was similar between the two cell lines; however AP-1 transcriptional activity was enhanced by 3- to 5-fold in K7M2 cells relative to that in K12 cells. The AP-1 complexes in K12 and K7M2 cells was composed primarily of cJun, JunD, FosB, Fra1, and Fra2, with the contribution of individual components in the complex varying between the two cell lines. In addition, an increase in phosphorylated cJun, JNK activity, and phosphorylated ERK1/2 was associated with the more metastatic osteosarcoma phenotype. The significance of AP-1 activation was confirmed by conditional expression of TAM67, a dominant negative mutant of cJun. Under conditions where TAM67 inhibited AP-1 activity in K7M2 cells, migration and invasion potential was significantly blocked. Tam67 expression in aggressive osteosarcoma cells decreased long-term in vivo experimental metastasis and increased survival of mice. This study shows that differences in metastatic activity can be due to AP-1 activation. The inhibition of AP-1 activity may serve as a therapeutic tool in the management of osteosarcoma.

Indexed as

AnimalsBlotting, WesternBone NeoplasmsCell Line, TumorCell MovementGene Expression Regulation, NeoplasticMiceNeoplasm InvasivenessNeoplasm MetastasisOsteosarcomaSignal TransductionTranscription Factor AP-1Transcription, GeneticTransfectionTranscription Factor AP-1

Identifiers

PMID19074613
PMCPMC2631339
OpenAlexW2168806759

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.