Evidence map›Paper›PMID 22863973›Full record

ArticleAnti-cancer drugs2012

Valproic acid shows a potent antitumor effect with alteration of DNA methylation in neuroblastoma.

Song Gu, Yufeng Tian, Alexandre Chlenski, Helen R Salwen, Ziyan Lu, J Usha Raj, Qiwei Yang

Open access · greenAbstract read
In one paragraph

Article in Anti-cancer drugs, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

26 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Epigenetic Dysregulation inInternational journal of molecular sciences · 2023
    Review
  4. Article
  5. Article
  6. Article
  7. Sodium Valproate-Induced Chromatin Remodeling.Frontiers in cell and developmental biology · 2021
    Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
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  17. Article
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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.

Song GuDepartment of Pediatric Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University, School of Medicine, Shanghai, People's Republic of China.
Yufeng Tian
Alexandre Chlenski
Helen R Salwen
Ziyan Lu
J Usha Raj
Qiwei Yang
University of Chicago · USUniversity of Illinois Chicago · US

Funding

Mechanisms of cGMP-Mediated Vasodilation in Perinatal LungR01HL059435 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAJ, J. USHA · 1998 to 2010
$3.9M
Functional Heterogeneity of Pulmonary Arteries and VeinsR01HL075187 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAJ, J. USHA · 2003 to 2011
$3.8M
Role of microRNA-17-92 and PDLIM5 Signaling in Pulmonary Arterial HypertensionR01HL123804 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAJ, J. USHA, ZHOU, GUOFEI · 2015 to 2018
$1.6M
NHLBI NIH HHS R01 HL059435NHLBI NIH HHS R01 HL075187NHLBI NIH HHS R01 HL123804
6 · The paper itself

Abstract

Epigenetic aberrations and a CpG island methylator phenotype are associated with poor outcome in children with neuroblastoma (NB). Previously, we have shown that valproic acid (VPA), a histone deacetylase (HDAC) inhibitor, exerts antitumor effects in an NB xenograft model. However, the underlying antitumor molecular mechanisms are largely unknown. In this study, we examined the role of HDAC in cell proliferation, cell cycle progression, gene expression patterns, and epigenome in NB. Cell proliferation, cell cycle progression, caspase activity, RNA and protein expression, quantitative methylation, and global DNA methylation were examined in NBL-W-N and LA1-55n NB cell lines. Our studies showed that inhibition of HDAC decreased NB proliferation, and induced caspase activity and G1 growth arrest. Expression patterns of cancer-related genes were modulated by VPA. The expression of THBS1, CASP8, SPARC, CDKN1A, HIC1, CDKN1B, and HIN1 was upregulated, and that of MYCN and TIG1 was downregulated. HDAC inhibition decreased methylation levels of THBS1 and RASSF1A promoters. Inhibition of HDAC increased acetylation of histone 4 and overall DNA methylation levels. Our studies showed that inhibition of HDAC blocked cell proliferation and cell cycle progression in relation to alteration in cancer-related genes, increased overall DNA methylation, and decreased methylation of tumor suppressor genes. Further studies examining the antitumor effects of VPA in NB are warranted.

Indexed as

AcetylationAntineoplastic AgentsCell Cycle CheckpointsCell Line, TumorCell ProliferationDNA MethylationG1 PhaseGene ExpressionGene Expression Regulation, NeoplasticGenes, Tumor SuppressorHistone Deacetylase InhibitorsHistone DeacetylasesHistonesHumansNeuroblastomaPromoter Regions, GeneticAntineoplastic AgentsHistone Deacetylase InhibitorsHistone DeacetylasesHistonesValproic Acid

Identifiers

PMID22863973
PMCPMC3710400
OpenAlexW2035557827

What OpenQuestion holds

Textmetadata
LicenceTDM
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.