Level D· Scientific groundwork from lab and animal studiesLaboratory StudyEurope PMCOpen access

Valproic acid promotes radiosensitization in meningioma stem-like cells

Chiou HY., Lai WK., Huang LC., Huang SM., Chueh SH., Ma HI.

Laboratory Study, published in Oncotarget (2015) — summary generated from the PubMed abstract.

Open my reading list
Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
Read the A–D evidence level guide

This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Laboratory Study
Journal
Oncotarget (2015)
Reported sample size
—
Source database
Europe PMC
PMID
25895030
PMCID
PMC4496410
DOI
10.18632/oncotarget.3692
Citations
16

Abstract (original English)

Although meningioma stem-like cells have been isolated and characterized, their therapeutic targeting remains a challenge. Meningioma sphere cells (MgSCs) with cancer stem cells properties show chemo- and radioresistance in comparison with meningioma adherent cells (MgACs). We tested the effect of valproic acid (VPA), a commonly used anti-epileptic drug, which passes the blood brain barrier, on cultured MgSCs. VPA reduced the viability of MgSCs and MgACs. In MgSCs, treatment with VPA increased radio-sensitivity, expression of p-cdc2, p-H2AX and cleaved caspase-3 and PARP. Anchorage-independent growth (AIG) was reduced by VPA. AIG was further reduced by combined treatment with irradiation. Expression of a stem cell marker, Oct4, was reduced by VPA. Oct4 was further decreased by combined treatment with irradiation. These results suggest that VPA may be a potential treatment for meningioma through targeting meningioma stem-like cells.

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence
HumansMeningiomaValproic AcidApoptosisCell DifferentiationDown-RegulationRadiation ToleranceOctamer Transcription Factor-3Neoplastic Stem CellsCell Cycle Checkpoints

Browse all related research

Filter the research library by this study's title keywords, author, or publication year.