Evidence map›Paper›PMID 24948145›Full record

ArticleCancer gene therapy2014

Epigenetic regulation of the secreted frizzled-related protein family in human glioblastoma multiforme.

L Schiefer, M Visweswaran, V Perumal, F Arfuso, D Groth, P Newsholme, S Warrier, A Dharmarajan

Abstract read
PubMed Publisher
In one paragraph

Article in Cancer gene therapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
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  3. Review
  4. Frontiers in molecular neuroscience · 2024
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  8. Article
  9. Wnt antagonist as therapeutic targets in ovarian cancer.The international journal of biochemistry & cell biology · 2022
    Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Morphology-oriented epigenetic research.Histochemistry and cell biology · 2018
    Review
  15. Article
  16. Article
  17. 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 2 institutions in 2 countries.

L Schiefer1] Health Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia [2] University of Luebeck, Luebeck, Germany.
M VisweswaranHealth Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.
V PerumalSchool of Pharmacy, Curtin University, Perth, Western Australia, Australia.
F ArfusoHealth Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.
D GrothHealth Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.
P NewsholmeHealth Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.
S Warrier1] Health Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia [2] Division of Cancer Stem Cells and Cardiovascular Regeneration, Manipal Institute of Regenerative Medicine, Manipal University, Bangalore, India.
A DharmarajanHealth Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.
Curtin University · AUManipal Academy of Higher Education · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastoma multiforme (GBM) are intracranial tumors of the central nervous system and the most lethal among solid tumors. Current therapy is palliative and is limited to surgical resection followed by radiation therapy and temozolomide treatment. Aberrant WNT pathway activation mediates not only cancer cell proliferation but also promotes radiation and chemotherapeutic resistance. WNT antagonists such as the secreted frizzled-related protein (sFRP) family have an ability to sensitize glioma cells to chemotherapeutics, decrease proliferation rate and induce apoptosis. During tumor development, sFRP genes (1-5) are frequently hypermethylated, causing transcriptional silencing. We investigated a possible involvement of methylation-mediated silencing of the sFRP gene family in human GBM using four human glioblastoma cell lines (U87, U138, A172 and LN18). To induce demethylation of the DNA, we inhibited DNA methyltransferases through treatment with 5-azacytidine. Genomic DNA, RNA and total protein were isolated from GBM cells before and after treatment. We utilized bisulfite modification of genomic DNA to examine the methylation status of the respective sFRP promoter regions. Pharmacological demethylation of the GBM cell lines demonstrated a loss of methylation in sFRP promoter regions, as well as an increase in sFRP gene-specific mRNA abundance. Western blot analysis demonstrated an increased protein expression of sFRP-4 and increased levels of phosphorylated-β-catenin. These data indicate an important role of methylation-induced gene silencing of the sFRP gene family in human GBM.

Indexed as

Brain NeoplasmsCell Growth ProcessesCell Line, TumorDNA MethylationEpigenesis, GeneticFrizzled-Related ProteinsGene SilencingGlioblastomaGlycoproteinsHumansIntracellular Signaling Peptides and ProteinsMembrane ProteinsFrizzled-Related ProteinsGlycoproteinsIntracellular Signaling Peptides and ProteinsMembrane Proteins

Identifiers

PMID24948145
OpenAlexW2021897981

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.