Evidence map›Paper›PMID 15685245›Full record

ArticleBritish journal of cancer2005

Expression and methylation status of tissue factor pathway inhibitor-2 gene in non-small-cell lung cancer.

J Rollin, S Iochmann, C Bléchet, F Hubé, S Régina, S Guyétant, E Lemarié, P Reverdiau, Y Gruel

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

39 citing papers in PubMed, 75 citations in OpenAlex.

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  20. The role ofOncotarget · 2017
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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

9 authors at 2 institutions in 1 country.

J RollinINSERM U 618 Protéases et Vectorisation Pulmonaires and IFR 135 Faculté de Médecine, 2 bis Bd Tonnellé, 37032 Tours Cedex, France.
S Iochmann
C Bléchet
F Hubé
S Régina
S Guyétant
E Lemarié
P Reverdiau
Y Gruel
Inserm · FRUniversité de Tours · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tissue factor pathway inhibitor-2 (TFPI-2) is a Kunitz-type serine proteinase inhibitor that inhibits plasmin-dependent activation of several metalloproteinases. Downregulation of TFPI-2 could thus enhance the invasive potential of neoplastic cells in several cancers, including lung cancer. In this study, TFPI-2 mRNA was measured using a real-time PCR method in tumours of 59 patients with non-small-cell lung cancer (NSCLC). Tumour TFPI-2 mRNA levels appeared well correlated with protein expression evaluated by immunohistochemistry and were 4-120 times lower compared to those of nonaffected lung tissue in 22 cases (37%). Hypermethylation of the TFPI-2 gene promoter was demonstrated by restriction enzyme-polymerase chain reaction in 12 of 40 cases of NSCLC (30%), including nine of 17 for whom tumour TFPI-2 gene expression was lower than in noncancerous tissue. In contrast, this epigenetic modification was shown in only three of 23 tumours in which no decrease in TFPI-2 synthesis was found (P=0.016). Decreased TFPI-2 gene expression and hypermethylation were more frequently associated with stages III or IV NSCLC (eight out of 10, P=0.02) and the TFPI-2 gene promoter was more frequently hypermethylated in patients with lymph node metastases (eight out of 16, P=0.02). These results suggest that silencing of the TFPI-2 gene by hypermethylation might contribute to tumour progression in NSCLC.

Indexed as

DNA MethylationGene Expression Regulation, NeoplasticAdultAgedCarcinoma, Non-Small-Cell LungDNA, ComplementaryDNA, NeoplasmFemaleGlycoproteinsHumansImmunoblottingImmunohistochemistryLung NeoplasmsMaleMiddle AgedNeoplasm StagingDNA, ComplementaryDNA, NeoplasmGlycoproteinsRNA, MessengerRNA, Neoplasmtissue-factor-pathway inhibitor 2

Identifiers

PMID15685245
PMCPMC2361876
OpenAlexW1983631645

What OpenQuestion holds

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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.