Evidence map›Paper›PMID 24675476›Full record

ArticleOncotarget2014

Epigenetic repression of phosphatidylethanolamine N-methyltransferase (PEMT) in BRCA1-mutated breast cancer.

Da Li, Fang-Fang Bi, Na-Na Chen, Ji-Min Cao, Wu-Ping Sun, Yi-Ming Zhou, Chen Cao, Chun-Yan Li, Qing Yang

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Review
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  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Journal of Cancer · 2019
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Linking BRCA1 to NAD World.Cell cycle (Georgetown, Tex.) · 2015
    Article
  15. Article
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  17. Article
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 2 countries.

Da LiDepartment of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China.
Fang-Fang Bi
Na-Na Chen
Ji-Min Cao
Wu-Ping Sun
Yi-Ming Zhou
Chen Cao
Chun-Yan Li
Qing Yang
China Medical University · CNChinese Academy of Medical Sciences & Peking Union Medical College · CNNational Institute for Physiological Sciences · JPChinese PLA General Hospital · CNNagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phosphatidylethanolamine N-methyltransferase (PEMT) plays a critical role in breast cancer progression. However, the epigenetic mechanism regulating PEMT transcription remains largely unknown. Here, we show that the first promoter-specific transcript 1 is the major PEMT mRNA species, and methylation of the -132 site is a key regulatory element for the PEMT gene in BRCA1-mutated breast cancer. Mechanistically, hypermethylated -132 site-mediated loss of active histone marks H3K9ac and increase of repressive histone marks H3K9me enrichment synergistically inhibited PEMT transcription. Clinicopathological data indicated that a hypermethylated -132 site was associated with histological grade (P = 0.031) and estrogen receptor status (P = 0.004); univariate survival and multivariate analyses demonstrated that lymph node metastasis was an independent and reliable prognostic factor for BRCA1-mutated breast cancer patients. Our findings imply that genetic (e.g., BRCA1 mutation) and epigenetic mechanisms (e.g., DNA methylation and histone modifications) are jointly involved in the malignant progression of PEMT-related breast cancer.

Indexed as

DNA MethylationEpigenetic RepressionGenes, BRCA1Breast NeoplasmsCarbon-Nitrogen LigasesCarcinoma, Ductal, BreastFemaleGene Expression Regulation, NeoplasticHistone-Lysine N-MethyltransferaseHistonesHumansKaplan-Meier EstimateMiddle AgedMutationp300-CBP-Associated Factorp300-CBP Transcription FactorsCarbon-Nitrogen LigasesEHMT1 protein, humanHistone-Lysine N-MethyltransferaseHistonesholocarboxylase synthetasesp300-CBP-Associated Factorp300-CBP Transcription FactorsPEMT protein, humanPhosphatidylethanolamine N-Methyltransferase

Identifiers

PMID24675476
PMCPMC4012741
OpenAlexW2124519733

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.