Evidence map›Paper›PMID 19267258›Full record

ArticleJournal of gastroenterology2009

Genome-wide analysis of histone H3 lysine 27 trimethylation by ChIP-chip in gastric cancer patients.

Li Zhang, Keli Zhong, Yong Dai, Hanxin Zhou

Abstract readValidation Study
PubMed Publisher
In one paragraph

Article in Journal of gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

15 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. How to stomach an epigenetic insult: the gastric cancer epigenome.Nature reviews. Gastroenterology & hepatology · 2017
    Review
  6. Gastric Cancer in the Era of Precision Medicine.Cellular and molecular gastroenterology and hepatology · 2017
    Review
  7. Review
  8. Challenges of deciphering gastric cancer heterogeneity.World journal of gastroenterology · 2015
    Review
  9. Epigenetics meets radiation biology as a new approach in cancer treatment.International journal of molecular sciences · 2013
    Review
  10. DNA and histone methylation in gastric carcinogenesis.World journal of gastroenterology · 2013
    Review
  11. Article
  12. Article
  13. Histone modifications and cancer: biomarkers of prognosis?American journal of cancer research · 2012
    Article
  14. Article
  15. 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

4 authors at 1 institution in 1 country.

Li ZhangThe Second Clinical Medical College, Jinan University, Guangdong, China. zhanglichangde@163.com
Keli Zhong
Yong Dai
Hanxin Zhou
Jinan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTrimethylation of histone H3 lysine 27 (H3K27me3) is a posttranslational modification that is highly correlated with genomic silencing. In gastric cancer (GC), global and gene-specific DNA methylation changes have been demonstrated to occur. However, to date, our understanding of the alterations in H3K27me3 in GC is incomplete. This study aimed to investigate the variations in H3K27me3 in CpG island regions between gastric cancerous and matched non-cancerous tissues.

methodsH3K27me3 variations were analyzed in eight pairs of GC and adjacent normal tissues, from eight GC patients, using a chromatin immunoprecipitation linked to the microarray (ChIP-chip) approach. ChIP-real time PCR was used to validate the microrray results. In addition, DNA methylation status also was further analyzed by methyl-DNA immunoprecipitation quantitative PCR.

resultsOne hundred twenty-eight (119 increased and 9 decreased H3K27me3) genes displaying significant H3K27me3 differences were found between GC and adjacent normal tissues. The results of ChIP-real time PCR coincided well with those of microarray. Aberrant DNA methylation can also be found on selected randomly positive genes (MMP15, UNC5B, SHH, AFF3, and RB1).

conclusionOur study indicates that there are significant alterations of H3K27me3 in gastric cancerous tissues, which may help clarify the molecular mechanisms involved in the pathogenesis of GC. Such novel findings show the significance of H3K27me3 as a potential biomarker or promising target for epigenetic-based GC therapies.

Indexed as

DNA MethylationGenomeAdenocarcinomaAgedChromatin ImmunoprecipitationCpG IslandsFemaleGene SilencingHistonesHumansMaleMiddle AgedOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionProtein Processing, Post-TranslationalStomach NeoplasmsHistones

Identifiers

PMID19267258
OpenAlexW1987474443

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.