Evidence map›Paper›PMID 11850822›Full record

ArticleOncogene2002

Hypermethylation trigger of the glutathione-S-transferase gene (GSTP1) in prostate cancer cells.

Jenny Z Song, Clare Stirzaker, Janet Harrison, John R Melki, Susan J Clark

Open access · bronzeAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Oncogene, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

73 citing papers in PubMed, 183 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Differential DNA Methylation in the Benign and Cancerous Prostate Tissue of African American and European American Men.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025
    Article
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  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Developing DNA methylation-based diagnostic biomarkers.Journal of genetics and genomics = Yi chuan xue bao · 2018
    Review
  20. Article

13 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

5 authors at 2 institutions in 1 country.

Jenny Z SongKanematsu Laboratories, Sydney Cancer Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia.
Clare Stirzaker
Janet Harrison
John R Melki
Susan J Clark
Royal Prince Alfred Hospital · AUCommonwealth Scientific and Industrial Research Organisation · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Understanding what triggers hypermethylation of tumour suppressor genes in cancer cells is critical if we are to discern the role of methylation in the oncogenic process. CpG sites in CpG island promoters, that span most tumour suppressor genes, remain unmethylated in the normal cell, despite the fact that CpG sites are the prime target for de novo methylation by the DNA methyltransferases. The CpG island-associated with the GSTP1 gene is an intriguing example of a CpG rich region which is susceptible to hypermethylation in the majority of prostate tumours and yet is unmethylated in the normal prostate cell. In this study we evaluate a number of factors purported to be involved in hypermethylation to test their role in triggering hypermethylation of GSTP1 in prostate cancer DU145 and LNCaP cells. We find that hypermethylation is not associated with (1) elevated expression of the DNA methyltranferases, or (2) removal of Sp1 transcription factor binding sites in the CpG island or (3) removal of CpG island boundary elements or (4) prior gene silencing. Instead our results support a model that requires a combination of prior gene silencing and random "seeds" of methylation to trigger hypermethylation of the GSTP1 gene in the prostate cancer cell. We propose that the GSTP1 gene is initially silenced in the prostate cancer and random sites of methylation accumulate that result in subsequent hypermethylation and chromatin remodelling.

Indexed as

DNA MethylationGene Expression Regulation, NeoplasticGene SilencingCpG IslandsDNA Modification MethylasesGlutathione S-Transferase piGlutathione TransferaseHumansIsoenzymesMaleModels, GeneticMutationProstatic NeoplasmsRepetitive Sequences, Nucleic AcidRNA, NeoplasmTranscription, GeneticDNA Modification MethylasesGlutathione S-Transferase piGlutathione TransferaseGSTP1 protein, humanIsoenzymesRNA, Neoplasm

Identifiers

PMID11850822
OpenAlexW2030069314

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.