Evidence map›Paper›PMID 21159608›Full record

ArticleMolecular cancer therapeutics2010

Peroxisome proliferator-activated receptor-gamma activation inhibits tumor metastasis by antagonizing Smad3-mediated epithelial-mesenchymal transition.

Ajaya Kumar Reka, Himabindu Kurapati, Venkata R Narala, Guido Bommer, Jun Chen, Theodore J Standiford, Venkateshwar G Keshamouni

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

88 citing papers in PubMed, 136 citations in OpenAlex.

  1. Article
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  4. Review
  5. 12/15-lipoxygenase orchestrates murine wound healing via PPARγ-activating oxylipins acting holistically to dampen inflammation.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Non-small cell lung cancer map and analysis: exploring interconnected oncogenic signal integrators.Mammalian genome : official journal of the International Mammalian Genome Society · 2025
    Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
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  16. Renal Cell Cancer and Obesity.International journal of molecular sciences · 2022
    Review
  17. Article
  18. Article
  19. Article
  20. Review

28 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

Ajaya Kumar RekaDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical Center, 4062 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA.
Himabindu Kurapati
Venkata R Narala
Guido Bommer
Jun Chen
Theodore J Standiford
Venkateshwar G Keshamouni
University of Michigan–Ann Arbor · USde Duve Institute · BEUCLouvain · BE

Funding

Flagellin Stimulates Lung Innate Mucosal ImmunityR01HL097564 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI STANDIFORD, THEODORE J. · 2010 to 2013
$1.7M
Regulation of Tumor Associated Macrophages by TGF-betaR01CA132571 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KESHAMOUNI, VENKATESHWAR G · 2008 to 2012
$1.4M
NCI NIH HHS R01 CA132571NHLBI NIH HHS HL097564NHLBI NIH HHS HL25243NHLBI NIH HHS R01 HL097564
6 · The paper itself

Abstract

Epithelial-mesenchymal transition (EMT) was shown to confer tumor cells with abilities essential for metastasis, including migratory phenotype, invasiveness, resistance to apoptosis, evading immune surveillance, and tumor stem cell traits. Therefore, inhibition of EMT can be an important therapeutic strategy to inhibit tumor metastasis. Here, we show that activation of peroxisome proliferator-activated receptor γ (PPAR-γ) inhibits transforming growth factor β (TGF-β)-induced EMT in lung cancer cells and prevents metastasis by antagonizing Smad3 function. Activation of PPAR-γ by synthetic ligands (troglitazone and rosiglitazone) or by a constitutively active form of PPAR-γ prevents TGF-β-induced loss of E-cadherin expression and inhibits the induction of mesenchymal markers (vimentin, N-cadherin, fibronectin) and matrix metalloproteases. Consistently, activation of PPAR-γ also inhibited EMT-induced migration and invasion of lung cancer cells. Furthermore, effects of PPAR-γ ligands were attenuated by siRNA-mediated knockdown of PPAR-γ, indicating that the ligand-induced responses are PPAR-γ dependent. Selective knockdown of Smad2 and Smad3 by siRNA showed that TGF-β-induced EMT is Smad3 dependent in lung cancer cells. Activation of PPAR-γ inhibits TGF-β-induced Smad transcriptional activity but had no effect on the phosphorylation or nuclear translocation of Smads. Consistently, PPAR-γ activation prevented TGF-β-induced transcriptional repression of E-cadherin promoter and inhibited transcriptional activation of N-cadherin promoter. Finally, treatment of mice with troglitazone or knockdown of Smad3 in tumor cells significantly inhibited TGF-β-induced experimental metastasis in SCID-Beige mice. Together, with the low toxicity profile of PPAR-γ ligands, our data show that these ligands may serve as potential therapeutic agents to inhibit metastasis.

Indexed as

Epithelial-Mesenchymal TransitionAnimalsCadherinsCell Line, TumorCell MovementCell NucleusGene Knockdown TechniquesHumansLigandsLung NeoplasmsMiceNeoplasm MetastasisPhenotypePhosphorylationPPAR gammaPromoter Regions, GeneticCadherinsLigandsPPAR gammaSmad2 ProteinSMAD2 protein, humanSmad3 ProteinSMAD3 protein, humanTransforming Growth Factor beta

Identifiers

PMID21159608
PMCPMC3044476
OpenAlexW2078424139

What OpenQuestion holds

Textmetadata
LicenceTDM
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.