Evidence map›Paper›PMID 21529352›Full record

ArticleBMC cancer2011

WEE1 inhibition sensitizes osteosarcoma to radiotherapy.

Jantine PosthumaDeBoer, Thomas Würdinger, Harm C A Graat, Victor W van Beusechem, Marco N Helder, Barend J van Royen, Gertjan J L Kaspers

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. An update of predictive biomarkers related to WEE1 inhibition in cancer therapy.Journal of cancer research and clinical oncology · 2024
    Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Targeting WEE1 Kinase in Gynecological Malignancies.Drug design, development and therapy · 2024
    Review
  17. Review
  18. Review
  19. Targeted therapy for osteosarcoma: a review.Journal of cancer research and clinical oncology · 2023
    Review
  20. Article

13 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

Jantine PosthumaDeBoerDepartment of Orthopaedic Surgery, VU University Medical Center, 1007 MB Amsterdam, the Netherlands.
Thomas Würdinger
Harm C A Graat
Victor W van Beusechem
Marco N Helder
Barend J van Royen
Gertjan J L Kaspers
Amsterdam UMC Location VUmc · NLGGD Amsterdam · NLHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe use of radiotherapy in osteosarcoma (OS) is controversial due to its radioresistance. OS patients currently treated with radiotherapy generally are inoperable, have painful skeletal metastases, refuse surgery or have undergone an intralesional resection of the primary tumor. After irradiation-induced DNA damage, OS cells sustain a prolonged G(2) cell cycle checkpoint arrest allowing DNA repair and evasion of cell death. Inhibition of WEE1 kinase leads to abrogation of the G(2) arrest and could sensitize OS cells to irradiation induced cell death.

methodsWEE1 expression in OS was investigated by gene-expression data analysis and immunohistochemistry of tumor samples. WEE1 expression in OS cell lines and human osteoblasts was investigated by Western blot. The effect of WEE1 inhibition on the radiosensitivity of OS cells was assessed by cell viability and caspase activation analyses after combination treatment. The presence of DNA damage was visualized using immunofluorescence microscopy. Cell cycle effects were investigated by flow cytometry and WEE1 kinase regulation was analyzed by Western blot.

resultsWEE1 expression is found in the majority of tested OS tissue samples. Small molecule drug PD0166285 inhibits WEE1 kinase activity. In the presence of WEE1-inhibitor, irradiated cells fail to repair their damaged DNA, and show higher levels of caspase activation. The inhibition of WEE1 effectively abrogates the irradiation-induced G(2) arrest in OS cells, forcing the cells into premature, catastrophic mitosis, thus enhancing cell death after irradiation treatment.

conclusionWe show that PD0166285, a small molecule WEE1 kinase inhibitor, can abrogate the G(2) checkpoint in OS cells, pushing them into mitotic catastrophe and thus sensitizing OS cells to irradiation-induced cell death. This suggests that WEE1 inhibition may be a promising strategy to enhance the radiotherapy effect in patients with OS.

Indexed as

ApoptosisBone NeoplasmsCDC2 Protein KinaseCell CycleCell Cycle ProteinsCell Line, TumorCell SurvivalCyclin BCyclin-Dependent KinasesDNA DamageGamma RaysGene Expression ProfilingHumansNuclear ProteinsOsteosarcomaPhosphorylationCDC2 Protein KinaseCDK1 protein, humanCell Cycle ProteinsCyclin BCyclin-Dependent KinasesNuclear ProteinsPD 0166285Protein Kinase InhibitorsProtein-Tyrosine KinasesPyrimidinesRadiation-Sensitizing AgentsWEE1 protein, human

Identifiers

PMID21529352
PMCPMC3103478
OpenAlexW1991403537

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.