Evidence map›Paper›PMID 19372553›Full record

ArticleMolecular cancer therapeutics2009

Valproic acid causes dose- and time-dependent changes in nuclear structure in prostate cancer cells in vitro and in vivo.

Madeleine S Q Kortenhorst, Sumit Isharwal, Paul J van Diest, Wasim H Chowdhury, Cameron Marlow, Michael A Carducci, Ronald Rodriguez, Robert W Veltri

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Sodium Valproate-Induced Chromatin Remodeling.Frontiers in cell and developmental biology · 2021
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Toxicology reports · 2014
    Article
  12. Article
  13. Article
  14. Regulators of gene expression as biomarkers for prostate cancer.American journal of cancer research · 2012
    Article
  15. Article
  16. Article
  17. Article
  18. Epigenetic therapy of lymphoma using histone deacetylase inhibitors.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2010
    Review
  19. 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

8 authors at 3 institutions in 2 countries.

Madeleine S Q KortenhorstProstate Cancer Program, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, James Buchanan Brady Urological Institute, School of Medicine, 600 North Wolfe Street, Baltimore, MD 21287, USA.
Sumit Isharwal
Paul J van Diest
Wasim H Chowdhury
Cameron Marlow
Michael A Carducci
Ronald Rodriguez
Robert W Veltri
Sidney Kimmel Comprehensive Cancer Center · USUniversity Medical Center Utrecht · NLJohns Hopkins University · US

Funding

TRANSGENIC MODELS FOR PROSTATE CANCER AND AUTOIMMUNITYP50CA058236 · NCI · JOHNS HOPKINS UNIVERSITY · PI DENMEADE, SAMUEL R · 1992 to 2020
$43.9M
Development/Clinical Validation Markers for Prostate CaU01CA086323 · NCI · JOHNS HOPKINS UNIVERSITY · PI PARTIN, ALAN W · 2000 to 2010
$6.1M
NCI NIH HHS P50 CA058236NCI NIH HHS P50CA58236NCI NIH HHS U01 CA086323
6 · The paper itself

Abstract

Histone deacetylase inhibitors such as valproic acid (VPA) are promising anticancer agents that change the acetylation status of histones and loosen the chromatin structure. We assessed nuclear structure changes induced by VPA in prostate cancer LNCaP, CWR22R, DU145, and PC3 cell lines and xenografts and their potential use as a biomarker of treatment. In vitro tissue microarrays consisted of prostate cancer cell lines treated for 3, 7, or 14 days with 0, 0.6, or 1.2 mmol/L VPA. In vivo tissue microarrays consisted of cores from prostate cancer xenografts from nude mice treated for 30 days with 0.2% or 0.4% VPA in drinking water. Digital images of at least 200 Feulgen DNA-stained nuclei were captured using the Nikon CoolScope and nuclear alterations were measured. With a set of seven most frequently significant nuclear alterations (determined by univariate logistic regression analysis), control and VPA treatment nuclei were compared in vitro and in vivo. Depending on the cell line, area under the curve-receiver operating characteristics ranged between 0.6 and 0.9 and were dose- and time-dependent both in vitro and in vivo. Also, VPA treatment caused significant nuclear alterations in normal drug-filtering organs (liver and kidney tissue). In vitro and in vivo VPA treatment of prostate cancer cell lines results in significant dose- and time-dependent changes in nuclear structure. Further, VPA induces nuclear structural changes in normal liver and kidney tissue, which likely reflects a natural physiologic response. Therefore, nuclear structural alterations may serve as a biomarker for histone deacetylase inhibitor treatment.

Indexed as

AnimalsCell Line, TumorCell NucleusDNA, NeoplasmDose-Response Relationship, DrugEnzyme InhibitorsHumansIn Vitro TechniquesKidneyLiverMaleMiceMice, NudeProstatic NeoplasmsTime FactorsValproic AcidDNA, NeoplasmEnzyme InhibitorsValproic Acid

Identifiers

PMID19372553
PMCPMC2676893
OpenAlexW2060842294

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.