Evidence map›Paper›PMID 22158042›Full record

ArticleOncogene2012

Downregulation of PRDX1 by promoter hypermethylation is frequent in 1p/19q-deleted oligodendroglial tumours and increases radio- and chemosensitivity of Hs683 glioma cells in vitro.

L M Dittmann, A Danner, J Gronych, M Wolter, K Stühler, M Grzendowski, N Becker, J Bageritz, V Goidts, G Toedt and 6 more

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. High Expression of Peroxiredoxin 1 Is Associated with Epithelial-Mesenchymal Transition Marker and Poor Prognosis in Gastric Cancer.Medical science monitor : international medical journal of experimental and clinical research · 2018
    Article
  11. Article
  12. Article
  13. Peroxiredoxin 1 - an antioxidant enzyme in cancer.Journal of cellular and molecular medicine · 2017
    Review
  14. Epigenetic regulation of peroxiredoxins: Implications in the pathogenesis of cancer.Experimental biology and medicine (Maywood, N.J.) · 2017
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

16 authors at 5 institutions in 2 countries.

L M DittmannDivision of Molecular Genetics, German Cancer Research Center, Heidelberg, Germany.
A Danner
J Gronych
M Wolter
K Stühler
M Grzendowski
N Becker
J Bageritz
V Goidts
G Toedt
J Felsberg
M C Sabel
S Barbus
G Reifenberger
P Lichter
B Tews
Heidelberg University · DEGerman Cancer Research Center · DEHeinrich Heine University Düsseldorf · DERuhr University Bochum · DEUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Deletions of chromosomal arms 1p and 19q are frequent in oligodendroglial tumours and linked to radio- and chemotherapy response as well as longer survival. The molecular mechanisms underlying this clinically important association are as yet unknown. Here, we studied the peroxiredoxin 1 (PRDX1) gene at 1p34.1 for promoter methylation and expression in primary gliomas and investigated its role in radio- and chemosensitivity of glioma cells in vitro. In total, we screened primary glioma tissues from 93 patients for methylation of the 5'-CpG island of PRDX1 by sodium bisulfite sequencing. PRDX1 mRNA and protein expression levels were determined in subsets of the tumours by quantitative PCR and western blot analysis, respectively. PRDX1 hypermethylation and reduced expression were frequently detected in oligodendroglial tumours and secondary glioblastomas, but not in primary glioblastomas. In oligodendroglial tumours, both PRDX1 hypermethylation and reduced mRNA expression were significantly associated with 1p/19q-deletion. Stable knockdown of PRDX1 by lentiviral transduction of short-hairpin (sh)RNA constructs significantly increased apoptosis and reduced cell viability of Hs683 glioma cells exposed to ionizing irradiation or temozolomide in vitro. Taken together, our findings indicate that epigenetic silencing of PRDX1 is frequent in 1p/19q-deleted oligodendroglial tumours and likely contributes to radio- and chemosensitivity of these tumours.

Indexed as

Chromosome DeletionAdultAgedApoptosisCell Line, TumorChromosomes, Human, Pair 1CpG IslandsDacarbazineDNA MethylationDown-RegulationFemaleGene Knockdown TechniquesGene SilencingGliomaHumansIsocitrate DehydrogenaseDacarbazineIDH1 protein, humanIDH2 protein, humanIsocitrate DehydrogenasePeroxiredoxinsPRDX1 protein, humanTemozolomide

Identifiers

PMID22158042
OpenAlexW2154162869

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.