Evidence map›Paper›PMID 25703332›Full record

ArticleOncogene2015

Disruption of CTCF/cohesin-mediated high-order chromatin structures by DNA methylation downregulates PTGS2 expression.

J Y Kang, S H Song, J Yun, M S Jeon, H P Kim, S W Han, T Y Kim

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

23 citing papers in PubMed, 36 citations in OpenAlex.

  1. Cohesin mutations and chromatin changes in cancer.International journal of cancer · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Cohesin Mutations in Cancer: Emerging Therapeutic Targets.International journal of molecular sciences · 2021
    Review
  8. Review
  9. Article
  10. Article
  11. DNA methylation pattern of the goatArchives animal breeding · 2019
    Article
  12. Disruption of Chromosomal Architecture of cox2 Locus Sensitizes Lung Cancer Cells to Radiotherapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2018
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. CTCF, Cohesin, and Chromatin in Human Cancer.Genomics & informatics · 2017
    Review
  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

7 authors at 2 institutions in 1 country.

J Y KangCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
S H SongCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
J YunCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
M S JeonCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
H P KimCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
S W HanCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
T Y KimCancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
Seoul National University · KRSeoul National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The CCCTC-binding factor (CTCF)/cohesin complex regulates gene transcription via high-order chromatin organization of the genome. De novo methylation of CpG islands in the promoter region is an epigenetic hallmark of gene silencing in cancer. Although the CTCF/cohesin complex preferentially targets hypomethylated DNA, it remains unclear whether the CTCF/cohesin-mediated high-order chromatin structure is affected by DNA methylation during tumorigenesis. We found that DNA methylation downregulates the expression of prostaglandin-endoperoxide synthase 2 (PTGS2), which is an inducible, rate-limiting enzyme for prostaglandin synthesis, by disrupting CTCF/cohesin-mediated chromatin looping. We show that the CTCF/cohesin complex is enriched near a CpG island associated with PTGS2 and that the PTGS2 locus forms chromatin loops through methylation-sensitive binding of the CTCF/cohesin complex. DNA methylation abolishes the association of the CTCF/cohesin complex with the PTGS2 CpG island. Disruption of chromatin looping by DNA methylation abrogates the enrichment of transcriptional components, such as positive elongation factor b, at the transcriptional start site of the PTGS2 locus. These alterations result in the downregulation of PTGS2. Our results provide evidence that CTCF/cohesin-mediated chromatin looping of the PTGS2 locus is dynamically influenced by the DNA methylation status.

Indexed as

DNA MethylationDown-RegulationGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticCCCTC-Binding FactorCell Cycle ProteinsCell Line, TumorChromatinChromosomal Proteins, Non-HistoneCohesinsCpG IslandsCyclooxygenase 2HumansNeoplasm ProteinsNeoplasmsRepressor ProteinsCCCTC-Binding FactorCell Cycle ProteinsChromatinChromosomal Proteins, Non-HistoneCohesinsCTCF protein, humanCyclooxygenase 2Neoplasm ProteinsPTGS2 protein, humanRepressor Proteins

Identifiers

PMID25703332
OpenAlexW2047340553

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.