Evidence map›Paper›PMID 19267203›Full record

ArticleClinical & experimental metastasis2009

Transient RNA silencing of tissue factor pathway inhibitor-2 modulates lung cancer cell invasion.

Sophie Iochmann, Claire Bléchet, Valérie Chabot, Annabelle Saulnier, Aniça Amini, Guillaume Gaud, Yves Gruel, Pascale Reverdiau

Abstract read
PubMed Publisher
In one paragraph

Article in Clinical & experimental metastasis, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 22% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. High IntratumoralInternational journal of molecular sciences · 2026
    Pooled it
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  4. New Derivatives ofInternational journal of molecular sciences · 2023
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  10. Gambogic acid suppresses colon cancer cell activityExperimental and therapeutic medicine · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Decreased expression of TFPI-2 correlated with increased expression of CD133 in cholangiocarcinoma.International journal of clinical and experimental pathology · 2015
    Article
  16. Article
  17. FRAS1 knockdown reduces A549 cells migration and invasion through downregulation of FAK signaling.International journal of clinical and experimental medicine · 2014
    Article
  18. Article
  19. Article
  20. 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

8 authors at 4 institutions in 1 country.

Sophie IochmannInserm U618, Protéases et Vectorisation Pulmonaires, Faculté de Médecine, Université François Rabelais, IFR 135, 10 Boulevard Tonnellé, 37032, Tours Cedex, France. iochmann@med.univ-tours.fr
Claire Bléchet
Valérie Chabot
Annabelle Saulnier
Aniça Amini
Guillaume Gaud
Yves Gruel
Pascale Reverdiau
Inserm · FRUniversité de Tours · FRÉtablissement Français du Sang · FRThion Medical (France) · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tissue Factor Pathway Inhibitor-2 (TFPI-2) is a potent inhibitor of plasmin which activates metalloproteinases (MMPs) involved in extracellular matrix (ECM) degradation. Its secretion in ECM makes TFPI-2 a potential inhibitor to regulate tumour invasion and metastasis. Moreover, TFPI-2 is frequently downregulated, particularly in aggressive cancers. In this study, we silenced TFPI-2 in the NCI-H460 non-small cell lung cancer cell line and evaluated the role of TFPI-2 in cell invasion and its impact on MMPs expression. As the effects of siRNA are transient, the consequences of both gene silencing and restoration to normal expression could be studied kinetically in the same cells. We showed that TFPI-2 expression by NCI-H460 cells was effectively downregulated using specific small interfering RNA and this silencing was associated with an increase in the invasive potential of tumour cells while migration was not affected. We also showed that mRNA levels and protein expression of MMP-2, -3, -9, -14 were not influenced by TFPI-2 silencing. Moreover, the gelatinase activity of MMP-2 and MMP-9 was unmodified. In contrast, MMP-1 mRNA levels and protein were significantly and similarly increased in cells transfected with TFPI-2 siRNA. In conclusion, this study confirms that TFPI-2 downregulation can contribute to tumour invasion of lung cancer cells.

Indexed as

Gene Expression Regulation, NeoplasticGene SilencingCarcinoma, Non-Small-Cell LungCell Line, TumorCell MovementDown-RegulationExtracellular MatrixGlycoproteinsHumansLung NeoplasmsMatrix Metalloproteinase 2Matrix Metalloproteinase 9Neoplasm InvasivenessRNARNA, Small InterferingGlycoproteinsMatrix Metalloproteinase 2Matrix Metalloproteinase 9RNARNA, Small Interferingtissue-factor-pathway inhibitor 2

Identifiers

PMID19267203
OpenAlexW2072279949

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.