Evidence map›Paper›PMID 12881707›Full record

ArticleOncogene2003

Promoter methylation and silencing of the tissue factor pathway inhibitor-2 (TFPI-2), a gene encoding an inhibitor of matrix metalloproteinases in human glioma cells.

Santhi D Konduri, Kalkunte S Srivenugopal, Niranjan Yanamandra, Dzung H Dinh, William C Olivero, Meena Gujrati, Donald C Foster, Walter Kisiel, Francis Ali-Osman, Shakuntala Kondraganti and 2 more

Abstract read
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In one paragraph

Article in Oncogene, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.3field-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

34 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Genetic studies of human-chimpanzee divergence using stem cell fusions.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  5. MeCP2 Epigenetic Silencing ofFrontiers in neuroscience · 2021
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Epigenetic silencing of methyl-CpG-binding protein 2 gene affects proliferation, invasion, migration, and apoptosis of human osteosarcoma cells.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Article
  13. Article
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  15. Article
  16. Review
  17. Review
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  19. Article
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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

12 authors at 4 institutions in 1 country.

Santhi D KonduriProgram of Cancer Biology, University of Illinois, Peoria, IL 61656, USA.
Kalkunte S Srivenugopal
Niranjan Yanamandra
Dzung H Dinh
William C Olivero
Meena Gujrati
Donald C Foster
Walter Kisiel
Francis Ali-Osman
Shakuntala Kondraganti
Sajani S Lakka
Jasti S Rao
Peoria campus of the University of Illinois System · USTexas Tech University Health Sciences Center · USThe University of Texas MD Anderson Cancer Center · USUniversity of New Mexico · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have shown previously that the tissue factor pathway inhibitor-2 (TFPI-2), a broad range proteinase inhibitor, is highly expressed in low-grade gliomas, but, minimally expressed or undetectable in glioblastomas, and that enforced expression of this gene reduces the invasive properties of brain tumor cells. Here, we examined the role of promoter methylation as a mechanism of TFPI-2 gene silencing. In SNB19 glioblastoma cells, which have no detectable TFPI-2 expression, 5-aza-2'-deoxycytidine (5aC), an inhibitor of DNA methyltransferase, induced TFPI-2 mRNA in a dose-dependent manner. Trichostatin A (TSA), the histone deacetylase (HDAC) inhibitor, by itself, was more efficient than 5aC in inducing TFPI-2 transcripts, and the 5aC+TSA combination resulted in highly synergistic reactivation of the gene, both at the transcript and protein levels. In Hs683 glioma cells, which express the TFPI-2 gene at high levels, transfection of the in vitro methylated TFPI-2 promoter constructs resulted in a drastic decrease of promoter activity compared to the unmethylated promoter. Further, the methylation-specific PCR in SNB19 and Hs683 cells showed that TFPI-2 gene repression was closely linked with methylation of the CpG islands in the promoter. Finally, the chromatin immunoprecipitation assays in SNB19 cells showed that the methylated and repressed TFPI-2 promoter was associated with the methyl-CpG binding protein 2 (MeCP2), and that gene reactivation resulted in the loss of MeCP2 from this site. These studies establish that TFPI-2 is transcriptionally silenced through promoter methylation in SNB19 cells.

Indexed as

Chromosomal Proteins, Non-HistoneDNA MethylationGene SilencingPromoter Regions, GeneticRepressor ProteinsAzacitidineBrain NeoplasmsChromatinCpG IslandsDNA-Binding ProteinsDNA (Cytosine-5-)-MethyltransferasesEnzyme InhibitorsGlioblastomaGliomaGlycoproteinsHistone Deacetylase InhibitorsAzacitidineChromatinChromosomal Proteins, Non-HistoneDNA-Binding ProteinsDNA (Cytosine-5-)-MethyltransferasesEnzyme InhibitorsGlycoproteinsHistone Deacetylase InhibitorsHistone DeacetylasesHydroxamic AcidsMECP2 protein, humanMethyl-CpG-Binding Protein 2Repressor Proteinstissue-factor-pathway inhibitor 2trichostatin A

Identifiers

PMID12881707
OpenAlexW2012783048

What OpenQuestion holds

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Registered trials

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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.